JPH03287313A - Work chip removing device for wire electric discharge machine - Google Patents

Abstract

PURPOSE:To prevent a wire electrode from being broken at an unexpected part by fitting a magnet to a holder for attracting the work chips produced by a wire electric discharge machine, so that the work chips out off from a work can be smoothly removed. CONSTITUTION:A magnet holder 140 is fitted to the end part of a second ball screw rod 139, and a magnet such as an electromagnet is interchangeably fitted to the magnet holder 140. Thus, work chips can be attracted by the magnet directly before the work chips are cut off from a work by the machining of a wire electric discharge machine, so that the work chips can be removed from the work.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for automatically removing a workpiece to be cut off from a workpiece in order to automatically perform various desired machining on a workpiece using a wire electrical discharge machine. Relating to a machine for removing workpieces.

[Conventional technology]

In general, a wire electrical discharge machine uses a vertically running portion of a wire electrode to generate electrical discharge between the workpiece and the wire electrode, thereby machining the workpiece using electrical discharge energy. The wire electrode is guided by various rollers such as a tension roller and a brake roller in an automatic wire supply device, and is supplied to a wire head having a wire guide with appropriate tension applied thereto. In this wire electric discharge machine, the X-Y table on which the workpiece is attached moves in the X direction and the Y direction according to the machining status of the workpiece according to commands from the NC device, and the movement of both is controlled.
Machining progresses between the electrode and the χ-Y table. During machining, the electrode and the χ-Y table repeat servo movement, and the workpiece is electrically discharge-machined into a predetermined machining shape by the relative movement of the two.

Recently, various devices have been disclosed that are distantly related to electric discharge machines, such as machining of large workpieces, progressive machining, and unmanned machining through automation. A wire electrical discharge machine that automatically takes out a core, that is, a workpiece from a workpiece when performing electrical discharge machining automatically, is described in, for example, Japanese Patent Application No. 1-98878 filed by the present applicant. Disclosed.

Furthermore, Japanese Patent Laid-Open No. 1-193125 discloses a processing machine equipped with an unloading device. The unloading device is! A device that uses a magnet to detect the inductance of a coil that changes when a workpiece of a wire electric discharge machine is attracted, confirms attraction, and discharges the workpiece,
It has a rotatable arm equipped with a magnet that attracts the workpiece at the tip, and a slide mechanism that moves the arm up and down,
Control that applies a minute voltage between a bumper made of a conductive material attached to the outer periphery of the arm via an insulator and the bumper and the machine body, and detects the current that flows when the bumper comes into contact with the machine body. It is equipped with a device.

Furthermore, regarding electric discharge machines, various devices have been disclosed for machining large workpieces, progressive machining, unmanned machining by automation, etc. An electrode replacement device is provided that automatically replaces the wire electrode, pipe electrode, or engraving electrode when the wire electrode is cut or lost, or the pipe electrode or rod-like electrode becomes worn out. for example,
JP-A-63-139616 discloses a wire electrode exchange device. Further, an automatic wire electrode supply method for a wire electric discharge machine is disclosed, for example, in Japanese Patent Application No. 139616/1983 filed by the present applicant.

In addition, for small and large electrical discharge machines, electrical discharge machining is performed to create a small or small hole at a predetermined position on the workpiece, or
In order to perform electrical discharge machining on a workpiece using a wire electrical discharge machine, a start hole is made at a predetermined position on the workpiece through which a wire electrode is passed through electrical discharge machining, and electrical discharge is generated between the workpiece and the pipe electrode to generate electrical discharge energy. This is used to machine workpieces into small pieces.

Furthermore, a die-sinking electric discharge machine processes a workpiece by generating electric discharge between the workpiece and an electrode of various shapes such as a rod shape, and using the electric discharge energy.

In addition, regarding small and large electrical discharge machines, for example,
246021 Publication, Utility Model Application Publication No. 1-143321,
Some of these are disclosed in Japanese Utility Model Application Publication No. 1-143321. JP-A-1-246021 discloses a pipe electrode exchange device.

Furthermore, as an FM varnish for wire electric discharge machines, there is one disclosed in Japanese Patent Application Laid-open No. 120960/1983.

The FMNIS is equipped with a circular workpiece moving station run in the center, and a wire cut electric discharge machining station 5 around it.
The facility will be equipped with various types of equipment: a die-sinking electrical discharge machining station, a laser processing station, an electrical discharge coating processing station, and a water jet processing station. When performing machining with FM Nis, the most suitable machining station is first selected, and a series of operations are performed using a human-powered program in the computer of the control device that collectively controls the entire FM Nis.

[Problem to be solved by the invention]

However, none of the conventional electrical discharge machines mentioned above automatically sets and attaches a workpiece to the X-Y table in the electrical discharge machine, which is an obstacle to fully automating the electrical discharge machine.

Therefore, various processing machine groups such as wire electrical discharge machines, narrow and large electrical discharge machines, die-sinking electrical discharge machines, etc. are arranged, and workpieces are transferred from stock locations such as racks that store workpieces to one of the processing machine groups. The process of automatically loading the workpiece into the processing machine, setting it, processing the workpiece, and then transporting the workpiece from the processing machine is completely automated, and the workpiece can be handled unmanned day or night. It is desired to perform various types of processing continuously.

Furthermore, the FMNIS disclosed in the above-mentioned Japanese Patent Application Laid-open No. 120960/1983 has a limit to the number of workpieces that can be mounted on the circular stage tongue, and in order to prepare a large number of workpieces,
As the diameter of the circular stationary run increases, there is a loss of floor space dedicated to the equipment itself for FM varnishing, and processing times differ between various processing machines, resulting in process waiting time. When a processing machine is present, there is a problem in that time is lost in loading the workpiece onto the processing machine, and cycle efficiency is reduced.

In particular, it does not have any technical concept of automatically and accurately positioning a workpiece with respect to a processing machine.

The purpose of this invention is to solve the above problems,
When machining a predetermined machining shape on a workpiece using a wire electrical discharge machine, the workpiece that is cut off from the workpiece is smoothly removed, preventing the wire electrode from breaking, and ensuring that the machined surface of the workpiece is not a workpiece. We provide a workpiece removal device for wire electrical discharge machines that prevents scratches and damage.
In particular, when pallets with workpieces are placed on a wire electrical discharge machine,
Various types of processing II (hereinafter referred to as EDM) such as small and large electrical discharge machines, die-sinking electrical discharge machines, laser processing machines, and water jet processing machines
A stacker crane that moves back and forth along a pallet traveling system between a group of processing machines installed with a large number of processing machines and a stock location such as a rack, and a stacker crane that moves back and forth between the stacker crane and the group of processing machines to collect the valence. The pallet transport loading/unloading device, such as the intermediate transfer device, automatically loads and unloads the workpieces into and out of the processing machine, completely automating various types of processing on the workpieces, and making it possible to operate the workpieces unmanned day and night. It is an object of the present invention to provide a workpiece removal device for a wire electric discharge machine that is suitable for application to a flexible manufacturing system that can perform various types of machining continuously.

[Means to solve the problem]

In order to achieve the above object, the present invention is configured as follows. That is, the present invention provides a first ball mesh rod that is vertically movably and rotatably supported by an upper mounting member and a lower mounting member that are attached to a hend body of a wire electrical discharge machine; a ball screw formed in the ball screw, a nut screwed onto the ball screw, a first servo motor and a second servo motor that actuate the ball screw and the nut to rotate and vertically move the first ball screw rod; a holder attached to the lower end of the first ball mesh rod; a second ball mesh rod axially slidably and rotatably supported by the holder; and a ball formed on the second ball mesh rod. a third servo motor attached to the holder that applies rotation to a nut hinged to a screw and slides the second ball screw rod in the axial direction; and the holder that attracts workpieces generated by the wire electric discharge machine. The present invention relates to a workpiece removal device for a wire electrical discharge machine, having a magnet attached to a magnet.

Alternatively, the present invention provides an upper mounting member and a lower mounting member attached to a head main body of a wire electric discharge machine, a first ball screw rod supported vertically and rotatably by each of the mounting members, and the first ball. a first servo motor attached to the lower mounting member that rotates a nut screwed into a ball screw formed on the threaded rod to move the first ball screw rod up and down; a drive shaft rotatable on the lower mounting member; a supported second servo motor, a gear that is axially slidable and rotationally fixed with respect to the first ball screw rod that is rotated by the drive shaft of the second servo motor; A holder attached to the lower end of the ball screw rod, a second ball screw rod axially slidably and rotatably supported by the holder, and screwed into the ball screw formed on the second ball screw rod. a third servo motor attached to the holder that applies rotation to the screwed nut and causes the second ball screw rod to slide in the axial direction; and a magnet attached to the holder that attracts workpieces generated by the wire electric discharge machine. The present invention relates to a work piece removing device for a wire electrical discharge machine having the following.

In addition, the machined piece removal device for this wire electrical discharge machine is equipped with a wide variety of processing machines, a rack with multiple shelves for storing pallets, a processing station that performs anti-corrosion treatment on workpieces, and a pallet storage system. A pallet with workpieces set thereon is delivered to each of the processing machines while maintaining the positioning state by a pallet transport device that reciprocates between loading and unloading stations, and the workpieces on the pallet are automatically discharged by each of the processing machines. This is applied to a wire electrical discharge machine with a flexible manifold ring system.

[Effect]

The work piece removing device for a wire electrical discharge machine according to the present invention is designed as described above and operates as follows. That is, the workpiece removal device of this wire electrical discharge machine is equipped with a first ball screw rod that is vertically movably and rotatably supported by an upper mounting member and a lower mounting member that are attached to the head body of the wire electrical discharge machine. Since the first servo motor and the second servo motor are provided which have a formed ball screw and a nut that is screwed onto the ball screw, and which operate the ball screw and the nut, the first servo motor and the second servo motor The actuation can impart rotation and/or vertical movement to the first ball screw rod.

The second ball screw rod is slidably attached perpendicular to the lower end of the first ball screw rod, and the third ball screw rod acts on the ball screw and nut of the second ball screw rod.
Since the servo motor is provided, the second ball net rod can be reciprocated in the horizontal direction by the operation of the third servo motor.

Therefore, the distal end of the second ball cage rod can be moved in three-dimensional space by the operation of each of the servo motors.

Therefore, attach a magnet holder to the tip of the second ball rod, and attach it to the magnet holder! If a magnet such as a magnet is attached replaceably, the workpiece can be removed from the workpiece by attracting it just before the workpiece is separated from the workpiece by machining with a wire electric discharge machine.

In addition, the machined piece removal device of this wire electric discharge machine can be used for a wide variety of processing machines, a rank with multiple shelves for storing valentine, a processing station where workpieces are treated to prevent rust, etc., and a pallet. A balent with a workpiece set thereon is delivered to each of the processing machines while maintaining the positioning state by a pallet transport device that reciprocates between unloading hole stations, and the workpiece on the balent is automatically discharged by each of the processing machines. When used in a wire electrical discharge machine in a flexible manufacturing machine to be machined, it is possible to not only automatically and reliably remove the workpiece from the workpiece, but also to quickly and unattendedly transfer the workpiece to the machine. It can be set automatically, and after processing the workpiece, it can be automatically and unmanned from the processing machine and carried out from the processing machine group to an appropriate location using a pallet conveyance/unloading device.
A series of work steps such as loading the workpiece into the processing machine, setting it, processing it, removing the workpiece, and carrying it out can be accomplished automatically and unattended, and the processing machine can be operated day and night.

[Embodiment] Hereinafter, with reference to the drawings, an embodiment of a work piece removing device for a wire electric discharge machine according to the present invention will be described with reference to FIGS. 4 and 5.

Regarding the wire electric discharge machine 1, when wire electric discharge machining is performed on a workpiece W, machining waste or products machined into a machined shape are generated that are separated from the workpiece 111W. Unless these workpieces are automatically removed during electrical discharge machining in the wire electrical discharge machine 1, subsequent electrical discharge machining cannot be performed. Therefore, the workpiece removing device according to the present invention is provided for removing workpieces generated during wire electrical discharge machining.

This work piece removing device 130 is equipped with an upper mounting member 131 and a lower mounting member 132 on the head IH of the wire electric discharge machine 1.
Fixed by A dog 133 that passes through and guides a ball screw rod 135 that moves up and down is attached to the upper mounting member 131. This ball screw rod 135 has a ball spline groove 141 and a thread 1.
42 is formed. The lower mounting member 132 is provided with a sliding member 62 that engages with the ball spline groove 141, is fixed in the rotational direction, and slides in the vertical direction. A gear 145 is fixed to this sliding member 62.

This gear 145 has a gear 1 that meshes with the gear 145.
A gear 146 that rotates over 270 degrees around the outer circumference of 45 is engaged with the gear 146.

This gear 146 is fixed to a rotating shaft 148 rotatably supported by a support member 147 attached to the lower mounting member 132. Rotation of the zero-rotating shaft 148 is performed by the operation of a servo motor 137, which is a second servo motor. be exposed. Therefore, when the rotating shaft 148 is rotated by the servo motor 137, the gear 146 meshes with the gear 145, and the gear 145
The ball screw rod 135 is rotated by rotating the gear 145 or rotating the gear 145 by rotating the gear 146 .

Further, a ball screw 143 that engages with the screw 142 is attached to the lower mounting member 132.

A nut 149 is fixed to the nut rotation support holder 53 attached to the lower mounting member 132 and fixed to the sliding member 62, and a worm wheel 144 is fixed to the nut 149 by meshing with the screw 141. The worm wheel 144 is rotated by the operation of a servo motor 136, which is a first servo motor attached to the lower mounting member 132. Therefore, when the worm wheel 144 is rotated by the operation of the servo motor 136, the sliding member 62 moves the ball mesh rod 135 up and down. Furthermore, the servo motor 137 and the servo motor 136 operate, and the gear 1
45 and the t-arm wheel 144 rotate in synchronization, their rotational movements cancel each other out, resulting in a stopped state, and only the ball-swinging rod 135 rotates.

Furthermore, an electromagnetic holder case 138 is attached to the lower end of the ball-sleeping rod 135. A ball screw 150 is attached to this if holder case 138, and a ball screw rod 139, which is a second ball screw rod, is provided with a stud 151 that meshes with the ball screw 150, and extends through the IF holder case 138. A ball spline 152 is formed on this ball screw rod 139. Furthermore,! The magnetic holder case 138 is provided with a servo motor 153, which is a third servo motor, to rotate a worm wheel attached to the pole screw 150. Therefore, when the servo motor 153 operates and the worm wheel of the ball screw 159 rotates, the ball screw rod 139 reciprocates in the horizontal direction with respect to the holder case 138. A T-magnetic holder 140 is attached to the tip of the ball screw rod 139. A magnet such as an electromagnet is attached to the magnetic holder 140.

Since the work piece removing device 130 according to the present invention is installed at the bottom of the tank as described above, the ball screw rod 139 attached to the lower end of the ball screw rod 135 that moves vertically and rotates is connected to the ball screw port. Since it can move up and down and rotate integrally with the throat 135, and the ball mesh rod 139 itself can move horizontally with respect to the ball mesh rod 135, it is possible to attach it to the tip of the ball mesh rod 139. The electromagnetic holder 140 can now move in three-dimensional space.

Therefore, the electromagnetic holder 14 of this work piece removing device 130
If the electromagnet attached to 0 is placed at the bottom of the tank so that it protrudes from this workpiece removal device 130, it will come into contact with the top surface of the workpiece W positioned on the pallet P of the wire electric discharge machine 1. You will be able to come into contact with them. Therefore, if the workpiece removal device 130 is activated to bring the electromagnet into contact with the workpiece and attract the workpiece immediately before the workpiece is separated from the workpiece W according to a command from the controller, the workpiece will be removed. Then, the workpiece attracted to the electromagnet 140 can be moved upward and stored in a predetermined workpiece storage location without falling, and the workpiece separated from the workpiece W will not damage the machined surface. The work piece can be eliminated.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flexible manufacturing system (hereinafter referred to as FMS) using a workpiece removing device for a wire electrical discharge machine according to the present invention will be described below with reference to the drawings. In this example of FMS, the processing machines are commonly used for electrical discharge machines such as wire electrical discharge machines, fine and large electrical discharge machines, and die-sinking electrical discharge machines. However, the present invention can be applied to other processing machines such as laser processing machines and water jet processing machines that process workpieces. In addition, the workpiece here refers not only to the workpiece, but also to
It refers to a workpiece that has been processed, and the processing machine itself can perform not only processing, but also assembly, final finishing, etc.

First, with reference to FIGS. 1 and 2, an FMS incorporating a workpiece removing device for a wire electric discharge machine according to the present invention
An outline of one embodiment will be explained. As shown in the figure, this FMS consists of a processing machine group in which a wire electrical discharge machine 1, a small-hole electrical discharge machine 112, and a die-sinking electrical discharge machine 3 are installed, and a ball l-P in which a workpiece W is set at a predetermined position. A rack 4 equipped with a plurality of shelves 19 for accommodating a machine, a stacker crane 6 that reciprocates along a travel path 5, and an intermediate transfer device 7 that reciprocates between the stacker crane 6 and the processing machine group. It is. Furthermore, this FMS includes a setup indexing device 9 equipped with a pallet mounting table 11 for mounting and positioning a baren (P), a rust prevention treatment device 10 for applying rust prevention treatment to the workpiece W, and a rust prevention treatment device 10 for applying rust prevention treatment to the workpiece W. Adhering machining fluid, foreign matter,
A fluid spraying device 12 is provided for removing deposits such as dust.

In this FMS, a wire electrical discharge machine 1 is shown in Fig. 1 as a processing machine (EDM) in which a large number of various types of processing machines are installed.
, one large-thin electrical discharge machine 2, and one die-sinking electrical discharge machine 3 are shown. Note that each processing machine has a filtering device 21 having a different function for each processing machine in order to filter and clean the processing liquid used in the processing machine.

In addition, in this FMS, since the system is controlled by a controller (not shown), a control panel 13 for setup, indexing, and rust prevention treatment, an inventory management machine 14, a relay panel 15,
The switch Ponx 16 and the control device 22 provided in each of the processing machines 1, 2, and 3 are provided. The control device 22 is controlled by the controller by manually outputting detection information to the controller.
The running path 5 includes a mole rail 18 for reciprocating the stacker crane 6, and a protective shelf 1 for ensuring safety.
7 is provided.

Furthermore, the controller (not shown) contains information on what kind of workpiece W has been set in advance on the barrel P that has been carried out through the setup indexing device 9, and the setup indexing device N9.
Information on the loading and unloading order of the balent P that has been loaded through the loading hole,
Information on the pallet P accommodated in each column 19, information on the carrying-out hole to the processing machine, information on the workpiece W being processed, etc. are stored. Based on the above-mentioned information, the controller is manually inputted in advance with information on what kind of machining machine is used to process the workpiece W.

In the operation of this FMS, for example, the steps from the planning schedule to the preparation of the setup schedule are configured as shown in FIG. 53. First, a planned schedule is created in the host computer, and the next planned schedule is also created. The planned schedule created by the host computer is transmitted from the host computer to the control computer in the FMS. Regulation? 11 The planned schedule received by the computer is displayed on a display or the like, and changes or additional settings are made to the planned schedule. Next, for example, a daily schedule is created from the planned schedule. Here, as a cimini region,
- Perform a daily schedule check, create a load factor for each processing machine, 2°3, a schedule for each processing machine, a setup schedule, and create a work instruction sheet. After performing each of the above processes, the setup indexing device W9 starts the setup indexing work.

Next, with reference to FIG. 3, an outline of another example of an FMS incorporating a workpiece removing device for a wire electric discharge machine according to the present invention will be explained. In this FMS example, the above FMS
Compared to the example shown in FIG. Otherwise, the systems perform the same functions. In this embodiment, the fine electrical discharge machine 2 for machining a predetermined start hole in the workpiece W using the pipe electrode PE is as follows:
One unit W is installed at a position opposite to the setup indexing device 9. On the other hand, in the figure, five wire electric discharge machines 1 are installed, which machine the workpiece W into a predetermined shape by passing the wire electrode WE through a start hole formed in the workpiece W. In addition, die-cut electrodes of various shapes such as rod-shaped
In the figure, four die-sinking electric discharge machines 3 for machining the workpiece W are installed. That is, the workpiece W is
It takes a short time to machine a start hole in a workpiece W, whereas it takes a long time to machine a predetermined shape by passing a wire electrode WE through a start hole in a workpiece W using the wire electric discharge machine 1. It takes time. Moreover, the time required for machining with the die-sinking electric discharge machine 3 is not the same as that with the wire electric discharge machine 1, but it takes a certain amount of time. Therefore, by installing the number of processing machines according to the time required for processing the workpiece W using various processing machines, the cycle time from the time when the workpiece W is loaded into the processing machine until the time when the workpiece W is removed and carried out is reduced. It is possible to shorten the process waiting time of the processing machine and improve cycle efficiency.

Next, each device that can be used on each side of the FMS, namely the pallet P, the rack 4, the stacker crane 6, the setup indexing device 9, the rust prevention treatment device 10, and the fluid spraying device E.
12. Intermediate transfer device f7, processing table device for wire electrical discharge machine l and small and large electrical discharge machine 2, processing tank device 79 for wire electrical discharge machine 1, pipe electrode exchange device for small and large electrical discharge machine 1
f2c, the processing table device and processing tank device 79 of the die-sinking electrical discharge machine 3, etc. will be explained.

In FMS, the barrel l-P is used to preset various workpieces W at predetermined positions, and has mechanical rigidity,
It is made of materials such as stainless steel that are highly conductive and rust resistant, and has a common reference surface for various types of machining 111.2.3. Equipped with a stopping means. Figures 6, 7 and 8
An example of the pallet P will be described with reference to the drawings. 6th
The figure is a plan view showing an example of a bullet that can be commonly used in this FMS, FIG. 7 is a sectional view taken along line V-■ in FIG. 6, and FIG. 8 is a sectional view taken along line Vl-Vl in FIG. 6. be.

This bullet P has a cutout hole 24 in the center that is wider than the machining area of the wire electric discharge machine I in order to run the wire electrode WE. In this cutout hole 24, the workpiece W
A workpiece holder 25 is fitted therein, which is a fixing means for setting the workpiece in a predetermined position.

A large number of workpiece holders 25 are prepared, and each of the workpiece holders 25 has various cutout holes 34 formed in the center thereof to match the shape of the workpiece W. Workpiece holder 2
The workpiece centering jig 26 can be attached to the cutout hole 34 of No. 5 in a replaceable manner. Therefore, the workpiece holder 2
After fitting the workpiece W into the cutout hole 34 of 5, tightening it with the clamp 27 provided on the workpiece centering jig 26,
The workpiece W can be secured to the barrel l-P. The workpiece setting jig 26 is prepared in various shapes that match the shape of the workpiece W.

The mounting reference means for pallet P is X in each process 111.23.
-Y functions to set the baren) P at a predetermined position in the height direction, that is, the X direction, and in the horizontal direction, that is, the X direction and the Y direction, with respect to the reference plane provided on the processing table on the , two finishing surfaces 28 formed on both sides of the lower surface of the pallet P in the height direction, and a reference fitting 29 and one side surface 30 provided on the front end surface 29F of the pallet P in the horizontal direction.
It can be constructed from the reference metal fittings 30 provided at 5. Each finished surface 28
are parallel to each other and are formed at the same height.

Furthermore, the reference fittings 29 and 30 are preferably made of a rust-resistant material such as ceramics or carbide and are highly wear-resistant, and are attached to the pallet P so that they can be replaced. The reference plane 29 of the reference fitting 29 provided on the front end surface 29F and the reference plane 30 of the reference fitting 30 provided on one side 30S are perpendicular to each other, and each reference plane 29K.

30 and each finished surface 28 are orthogonal to each other.

Further, the rotation center axis of the through hole 24 is perpendicular to each finished surface 28. In order to set it in a predetermined position, wire electrical discharge machine 1
A reference surface 2 as a reference means that matches a positioning stopper having a base Ys cylinder as a processing reference positioning means provided in the
9K is formed. It should be noted that each positioning stopper provided in the processing machine groups 1, 2. It is installed so that it can be replaced.

The locking means of the baren (P) are a plurality of recesses formed on the back surface of the baren (P). That is, a common locking pin provided on the fork of the stacker crane 6 engages with the plurality of (two in the figure) recesses 31 . The plurality (two in the figure) of the recesses 33 are pin holes that are engaged by a common operating pin provided on the lifter of the intermediate transfer device 7, and when the operating pin engages with the pin hole, the recesses 33 are pin holes. , Valent P
can be pushed into or pulled out of each processing machine 1.2.3. Further, a common locking pin provided in the setup indexing device 9, the rust prevention treatment device 10, and the intermediate delivery device 7 engages with the plurality of (two in the figure) recesses 32.

This FMS is provided with a rack 4.

The rack 4 has a number of openings 20 along the longitudinal direction of the travel path 5 of the stacker crane 6 for the entry and exit of the barren) P.
Inside the opening 20, a large number of fences 19 are vertically arranged to store pallets P or pallets P on which workpieces W are set in advance. Accordingly, the pallet P is stored on the shelf 19 or taken out from the column 19 to the stacker crane 6 by the operation of the stacker crane 6.

A rust prevention treatment device 10 and a fluid spraying device 12 are arranged in a suitable opening 20 of rank 4.

An upper rail 48 is attached to a frame protruding from the upper part of the rack 4 toward the travel path 5 to guide the upper part of the stacker crane 6.

Further, in this FMS, as shown in FIGS. 9, 10, and 11, a setup indexing device 9 is provided on the base 36 of the setup station. Figure 9 shows this FM
A plan view showing an example of a setup indexing device that can be used for S.
10 is a front view of FIG. 9, and FIG. 11 is a front end side view of FIG. 9.

In this setup stage engine, as shown in Figure 55,
As a setup indexing operation, a setup schedule is created and setup for mounting a workpiece W on a pallet P is started. First, the stacker crane 6 is operated to take out the empty pallet P from the rank 4 shelf 19 to the setup station, and the workpiece W is attached to the pallet P. When the installation work of setting the workpieces W on the pallet P at a predetermined position is completed, the stacker crane 6 is operated again to store the balent P with the workpieces W set thereon into the rods 19 of the predetermined racks 4. Next, the valent P with the workpiece W attached thereto is carried into a predetermined processing machine 1.2.3 by the operation of the stacker crane 6, and subjected to electrical discharge machining. Workpiece W after electrical discharge machining
The pallet P with the attached pallet P is stored again on the shelf 19 of the predetermined rack 4 by the operation of the stacker crane 6, or is carried out to the setup station. A command for unloading is issued to the pallet P to which the workpiece W for which the process has been completed is attached, and the stacker crane 6 is operated to transport the pallet P to the setup station. Ballen) P to workpiece W
The removed workpiece W, i.e., the product, is carried out to a predetermined location. However, the pallet P from which the workpiece W has been removed is stored on the shelf 19 of the rack 4 by operating the stacker crane 6 again. At the 0 setup station,
The above operations are repeated.

In order to accomplish each of the above-mentioned operations, this setup indexing device 9 is capable of loading and positioning a workpiece W on a barn (P) and transporting a pallet P into and out of the stacker crane 6 in a predetermined positioning state. It is. In the figure, two setup indexing devices 9 are provided. For example, one setup indexing device 9 is configured exclusively for carrying in pallets P, and the other setup indexing device 9 is configured exclusively for carrying out pallets P. The traveling cart 37 of the 0 setup indexing device 9 can be configured to
The stacker crane 6 is reciprocated by a moving device 41 on a rail 35 arranged perpendicularly to the mole rail 18 of the travel path 5 along which the stacker crane 6 travels. In the figure, the moving device 41 is composed of a motor, a speed reducer, a sprocket 41S fixed to the base 36, a chain 41C hanging on the sprocket 41S, etc., but is not limited to this, and can also be composed of a hydraulic cylinder or the like. . On the traveling carriage 37, there are rotatable rollers 40 arranged around the periphery.
A pallet mounting base 11 is arranged rotatably around a rotation shaft 43 via the top. The pallet mounting base 11 is free from a circular track member that rotates on the rollers 40 and a support member on the track member, and can rotate over 360 degrees on the rollers 40. Further, the rotation movement of the pallet mounting table 11 is configured so that it can be rotated into four equal parts by manual indexing or automatic indexing, and the origin of the rotation movement is configured to be confirmed by a limit switch or the like.

Further, a stopper pin 39 is provided on the traveling carriage 37, and the stopper pin 39 is configured to be able to be locked to a locking member 42 provided on the pallet mounting base 11. Therefore, if the stopper pin 39 is locked to the locking member 42, the traveling bogie 3
The rotational movement of the pallet mounting base 11 on the pallet mounting base 7 can be stopped. Parameter 7) The mounting base 11 is provided with a locking pin, and the locking pin is connected to the recess 3 formed in the barrel l-P.
2, and therefore the pallet mounting base 11 and the pallet P
The positional relationship between the two parts is determined at a predetermined position. Valent P is mounted on the pallet mounting base 11 via a cradle 38. A predetermined workpiece W is set on the pallet P at a predetermined position.

Since the setup indexing device 9 is configured as described above, the pallet P is mounted on the pallet mounting base 11 with a forklift or the like, and the pallet mounting base 11 is rotated on the traveling cart 37 by hand or with an appropriate rotation device. Then, the pallet mounting base 11 is rotated to a predetermined position with respect to the traveling carriage 37, and the locking member 42 of the pallet mounting base 11 is rotated to a predetermined position relative to the traveling carriage 37.
7, the pallet mounting base 11 is stopped at a predetermined position on the traveling carriage 37.

Next, the moving device 41 is driven to move the traveling carriage 37 toward the traveling path 5 side. Therefore, the traveling trolley 37 waits,
When the stacker crane 6 moves along the travel path 5 and comes to the setup station, the pallet P on the pallet loading platform 11
is carried in by the forks of the stacker crane 6.

This FMS has a stacker crane 6 that reciprocates on a mole rail 18 on a travel path 5.

This stacker crane 6 has almost the same structure as the conventionally used one except for the structure of the fork.
A description of the same points as the conventional one, such as the hoisting device, will be omitted. The stacker crane 6 will be described below with reference to FIGS. 12 to 21. Fig. 12 is a schematic front view showing the stacker crane as a whole, Fig. 13 is a side view of Fig. 12, Fig. 14 is a perspective view schematically showing the stacker crane, and Fig. 15 is mounted on the stacker crane. Fig. 16 is a front view showing the lower part of the stacker crane; Fig. 17 is a front view showing the upper part of the stacker crane; Fig. 18 is a cross section showing the transmission mechanism of the fork device of the stacker crane. 19 is a front view of the fork device, FIG. 20 is an explanatory view showing the fork device in an extended state, and FIG. 21 is an explanatory view showing the fork device in a contracted state.

As shown in FIGS. 12 and 13, the stacker crane 6 includes a traveling cart 44 that reciprocates on a mole rail 18 provided with stoppers 6S at both ends of the traveling path 5 by driving a traveling device 57, and It has a mast 45 erected in the front-rear direction, an upper saddle 46 hanging over the upper end of the mast 45, and a hoisting device 47 attached to the mast 45.

In order to prevent the upper saddle 46 of the stacker crane 6 from swinging, the upper rail 4 provided on the rack 4 is guided by guide rollers 49 provided on the front, rear, left and right sides of the upper saddle 46 (FIG. 14).

Furthermore, as shown in FIGS. 15 and 17, a fork device 250 is provided on the traveling cart 44 of the stacker crane 6, and is operable to expand and contract on the left and right sides of the traveling path 5, and for placing the pallet P thereon. ing.

The fork device 50 is arranged on a fork base 51,
A carriage 52 is erected on the fork base 51 in the front-rear direction. Guide rollers 55 are rotatably attached to the upper part of these gear ranges 52, and chains 54 are respectively hung on the guide rollers 55. Also,
As shown in FIGS. 14 and 15, a guide roller 56 is rotatably attached to the upper part of the carriage 52, the guide roller 56 is guided on the mast 45, and the carriage 52 swings as the carriage 52 moves up and down. to prevent The chain 54 is wound up and rewound by a hoisting device 47, has one end attached to the upper saddle 46, and is guided by a guide roller 53 attached to the upper saddle 46.

Therefore, when the chain 54 is hoisted or rewound by the operation of the hoisting device 47, the carriage 52 moves up and down, and the fork device 50 on the fork base 51 moves up and down. (Hereinafter, this page margin) Next, the fork device 50 will be explained with particular reference to FIGS. 18 to 21. FIG. 18 is an explanatory diagram showing an outline of a fork device and a drive device for the fork device, FIG. 19 is a sectional view showing details of the fork device, FIG. 20 is an explanatory diagram showing the fork device in an extended state, and FIG. 21 FIG. 2 is an explanatory diagram showing a contracted state of the fork device. The fork device 50 is a pallet P
The structure is expandable and retractable so that it can be loaded and carried in and out. That is, the fork device 50 includes a fork base 51
A base end fork 58 fixed to the base end fork 58, an intermediate fork 59 slidable on the base end fork 58, a distal fork 60 slidable on the intermediate fork, and the intermediate fork 59 and the distal fork 60 are slidable in a telescopic manner. It has a drive device 63 for moving. In particular, this fork device 50 includes a locking pin 67A and a support pin 67 at both ends of the distal fork 60.
This is because B was provided. The locking bin 67A engages with a recess 31 formed in the pallet P, and the support bin 67B supports the lower surface of the pallet to maintain the horizontal state of the pallet P. By engaging the locking pin 67A of the tip fork 60 with the recess 31 of the pallet P, the pallet P can be accurately and reliably positioned on the tip fork 60 of the stacker crane 6. Therefore, when the fork mounting W50 in the stacker crane 6 moves up and down and expands and contracts, the ball P does not move on the tip fork 60, remains accurately and reliably positioned, and moves together with the tip fork 60. It is possible to move to a predetermined digit.

Furthermore, a forward chain receiving member 62F and a backward chain receiving member 62R are fixed to the base end fork 58, respectively. One end of the forward chain 64F is connected to the forward chain receiving member 62F, and one end of the forward chain 64F is connected to the backward chain receiving member 6.
One end of the rearward side chain 64R is fixed to each of the chains 2R and 2R. The forward chain 64F is hooked on the forward sprocket 65F provided at the tip of the intermediate fork 59, and the other end of the forward chain 64F is attached to the proximal end 66 of the tip fork 60.
It is fixed at F. Further, the retreating side chain 64R receives the pallet P on which the retreating object W provided at the tip of the intermediate fork 59 is set, onto the shelf 19 of the predetermined rack 4.
The pallet P with the workpiece W attached thereto is transported by the stacker crane 6.
With the operation of , it is carried into a predetermined processing machine 1.2.3 and subjected to electrical discharge machining. The pallet P on which the workpiece W that has been subjected to electrical discharge machining is mounted is stored again in the predetermined rack 4 11119 by the operation of the stacker crane 6, or in the predetermined column 19 in the 0-setup station run where it is carried out to the setup station. The workpiece W that has been subjected to electrical discharge machining is housed in
It is formed for the pallet P to which the pallet is attached. A guide roller 68 is rotatably attached to the distal fork 60, and a guide roller 69 is rotatably attached to the proximal fork 58. Since the guide roller 68 loosely fits into the guide groove 72 and guides the guide roller 68 through the guide groove 72, the tip fork 60 smoothly extends and contracts with respect to the intermediate fork 59. Further, since the guide roller 69 loosely fits into the guide groove 73 and guides the guide roller 69 with the guide groove 73, the intermediate fork 59 is connected to the base end fork 58.
It stretches and contracts smoothly against the surface.

As described above, the fork device 50 is configured and operates as follows. First, as shown in FIG. 20, when extending the tip fork 60 of the fork device 50, the drive device 63 is rotationally driven in one direction, and the pinion 70 is rotated in the forward direction through the transmission device 71. . The rotational movement of the pinion 70 moves the rack 61 forward in the longitudinal direction. When the rack 61 moves forward in the longitudinal direction, the intermediate fork 59 moves to the forward side, that is, to the side where it extends relative to the proximal fork 58. The extension of the intermediate fork 59 causes the sprocket 65F attached to the intermediate fork 59 to be rotated by the chain 64F, thereby increasing the distance between the forward chain receiving member 62F and the sprocket 65F.
The distance between the base end portion 66F and the base end portion 66F becomes shorter. Therefore, the tip fork 60 moves toward the forward side, that is, the side where it extends, relative to the intermediate fork 59. Therefore, the fork device 50 will extend the tip fork 60.

Further, as shown in FIG. 21, when retracting the tip fork 60 of the fork device 50, the drive device f63 is rotated in the opposite direction to the above, and the pinion 70 is rotated in the backward direction through the transmission device 71. Exercise. The rotational movement of the pinion 70 causes the rack 61 to move backward in the longitudinal direction. When the rack 61 moves toward the backward side in the longitudinal direction, the intermediate fork 59 moves toward the backward side, that is, toward the side where it is retracted with respect to the base end fork 58. intermediate fork 59
To pull in, the sprocket 65R attached to the intermediate fork 59 is rotated by the chain 64R.
The distance between the sprocket 65R and the proximal end 66R becomes shorter. Therefore, the tip fork 60
moves toward the retreating side, ie, the retracting side, relative to the intermediate fork 59.

Therefore, the fork fitting 250 will cause the tip fork 60 to retract.

Therefore, if the stacker crane 6 is provided with a fork device 50 that can extend and contract with respect to one side of the traveling path 5 and a fork device 50 that can extend and contract with respect to the other side, the stacker crane 6 can be installed on both sides of the traveling path 50. A fork device f50 is provided that can extend and retract toward the front. Alternatively, for the stacker crane 6, instead of providing the two telescoping fork units 250, a fork unit that rotates on the fork base 51 (not shown) may be provided, so that one fork unit 250 can be used not only in both directions. , it is also possible to orient the fork device in a desired direction.

Therefore, the stacker crane 6 moves the fork device 50 up and down by the hoisting device 47, and also moves the fork device 50 up and down the traveling path 5.
By having a fork device 50 that can extend and contract in the left-right direction, the tip fork 60 of the fork device 50 can be extended to below the pallet P that is located at a predetermined location.
Next, by slightly raising the tip fork 60, the locking pin 67A of the tip fork 60 is inserted into the recess 31 of the barrel l-P.
is engaged, and the lower surface of the barrel l-P is connected to the support pin 67B.
It will be placed on top. If the tip fork 60 is contracted in this state, the pallet P can be positioned on the fork mousse 51. Next, the traveling device 57 drives the traveling cart 44 of the stacker crane 6, and moves it to a predetermined position according to instructions from the controller, for example, the setup indexing device f9, each intermediate transfer device 7 of the various processing machines 1.2°3, and the rust preventive device 57. Processing device 10, fluid spray device 12 or #119 of rack 4
move it to The fork device 50 is operated again to extend the tip fork 60 and move it to the location where the baren) P is placed. When the tip fork 60 is extended to the placement site of the barrel (P), if the tip fork 60 is moved slightly downward, the locking pin 67A of the tip fork 60 that has been engaged with the recess 31 of the barrel (P) is released. do. In this state, the tip fork 60 is retracted, the fork device 50 is contracted to the state shown in FIG. 21, and the stacker crane 6 is moved to the next target location.

Therefore, this stacker crane 6 carries the bar (P) received by the setup indexing device 9 to the rust prevention treatment device IO1 fluid spraying device 12, the rack 4, or the intermediate delivery device 7 of various processing machines 1.2.3. can perform the functions of Alternatively, the stacker crane 6 can be used for various processing machines 1.
2. Receive the pallet P from the intermediate transfer device 7 which received the pallet P carried out from 3) and carry it to the intermediate transfer device 7 of another processing machine, or carry it out to the rack 4 or the setup indexing device 9. able to perform a function.

Further, in this FMS, the rust prevention treatment device IO is installed at a rust prevention station provided in the pallet traveling system in order to apply rust prevention treatment to the workpiece W. Although the fatty mackerel stations may be installed anywhere in the pallet traveling system, in the figure, two fatty mackerel stations are installed at two openings 20 of the rack 4. Regarding this rust prevention treatment device 10, especially the second
This will be explained with reference to FIGS. 22 and 23. 22nd
The figure is a front view of a rust prevention treatment device that can be used in this FMS, and FIG. 23 is a side view of FIG. 22.

This anti-rust treatment device! Reference numeral 10 denotes a pallet support member 23 that moves up and down guided by a support 4P installed in the rack 4.
The support member 23 has a stacker crane 6.
The pallet P is provided with a locking means that engages with a locking means provided on the pallet P so that the pallet P can be maintained in a predetermined positioning state. A frame 4F is fixed to the upper part of the support column 4P, and a drive device 10D that moves the valent support member 23 up and down is set on the frame 4F. Further, at the bottom of rank 4, a tank IOT with an upper opening is arranged, and a solution for rust prevention treatment is contained in the tank LOT. For example, one tank IOT contains a rust remover solution to remove rust that has formed on the workpiece W, and the other tank IOT contains an anti-wI solution that prevents rust from forming on the workpiece W. ing. Further, in the tank IOT containing the rust removing solution, in order to promote the rust removing effect, it is preferable to provide a means for applying ultrasonic vibration to the solution, for example, the guide roller 23 of the valent support member 23.
G is guided by guide means provided on the support post 4P of the rust prevention station and moved up and down.

In addition, in this FMS, fluid spraying is performed by the device 12 to remove deposits such as machining fluid, foreign matter, and dust attached to the surface of the workpiece W.
It is installed in the pallet travel system to spray and eliminate fluids such as high-pressure air or high-temperature water. Although the fluid spraying device 12 may be provided at any location, in the figure, it is provided at the opening 20 of the rack 4 next to the rust prevention treatment device 10. This fluid spraying device 12 is used to clean the workpiece W carried into the FMS sufficiently to perform anti-corrosion treatment or electric discharge machining, and uses means for blowing out fluid such as high-pressure air or high-temperature water. , it is preferable to provide shank means for closing the opening 20 to prevent the fluid from splashing out. The shutter means is controlled to operate according to commands from the controller. When the pallet P is carried into the fluid spray device 12 from the stacker crane 6, the shutter means is activated to open the shutter, and the pallet P is placed on the pallet support member 25P provided in the fluid spray device 12. Ru. This pallet support member 25P is provided with a locking means that engages with a locking means provided on the pallet P so that the barrel P can maintain a predetermined positioning state. When the pallet P is placed on the pallet support member 25P, the shutter is closed, and then fluid is blown out from the fluid blowing nozzle 12N of the device 12, and the workpiece W is cleaned. When the cleaning process for the workpiece W is completed, the shutter is opened again, and the pallet P is carried out from the valent support member 25P by the stacker crane 6.

As mentioned above, the rust prevention treatment device 10 and the fluid spraying device 1
2 is configured as an example, but the action of the device 10.12 is, for example, to drive the bar (P) carried from the stacker crane 6 to the pallet support member 23 of the rust prevention treatment device 10 by actuating the drive device 10D. The rust removing solution is poured into the tank IOT to remove any rust that has occurred on the workpiece W.Next, the pallet P is moved from the rust prevention treatment device 10 to the fluid spraying device 12 by the stacker crane 6, and the fluid spraying is carried out using the stacker crane 6. A device 12 blows high-pressure air onto the surface of the workpiece W to blow off the rust removing solution adhering to the surface. Again, the fluid spraying device 12 moves the balent P to the rust prevention treatment device 10 by the stacker crane 6, and it is put into the tank IOT containing the rust prevention solution of the rust prevention treatment device IO, and the rust prevention is applied to the workpiece W. In this case, the workpiece W
When performing electric discharge machining immediately after the rust prevention treatment, the pallet P is transferred to the rust prevention treatment bag f by the stacker crane 6.
The fluid spraying is transferred from f1o to the device 12, which blows high pressure air onto the surface of the workpiece W to blow away the anti-rust solution attached to the surface, and the stacker crane 6 transfers the fluid to the processing machine group. Transfer to device 7. Alternatively, after the rust prevention treatment, the pallet P on which the rust prevention treated workpiece W is installed is stored on the shelf 19 of the rack 4 by the stacker crane 6, or the processing 1112
．． 3.

Next, the wire electric discharge machine 1 among the group of processing machines in this FMS will be explained with reference to FIGS. 24 to 33. Fig. 24 is a side view of the processing table part of the wire electric discharge machine, Fig. 25 is a front view of Fig. 24, Fig. 26 is a plan view of the processing table part of the wire electric discharge machine, and Fig. 27 is a side view of the processing table part of the wire electric discharge machine. 28 is a side view of the other side of the processing table of the wire electric discharge machine, FIG. 29 is a partial sectional view of the clamp device, FIG. 30 is a perspective view of the machining tank cover device, and FIG. The figure is number 30
32 is a plan view of the processing tank cover device, and FIG. 33 is a 32nd side view.

In this FMS, the wire electrical discharge machine 1 includes an automatic wire electrode feeding device, a wire electrode changing device, and the aforementioned workpiece removing device 130 for automatically taking out a core, that is, a workpiece from a workpiece, as in the conventional one. etc. can be provided. The wire electrical discharge machining Ill in this FMS differs from the conventional one except for the mechanism for loading and unloading the ball P onto the processing table 75, the mechanism for fixing the ball P on the processing table 75, and the processing tank 76. Since they have almost the same configuration, the above-mentioned differences will be explained in particular.

The machining operation of this wire electric discharge machine 1 is performed by, for example, the 56th
It can be done as shown in the figure. Wire electrical discharge machining Il
Processing of l! When the S preparations are complete, the controller issues a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 starts the wire electrical discharge machine 1.
A pallet P containing a workpiece W whose start hole has been machined stored on the shelf 19 of the rack 4, or a pallet P containing a workpiece W whose start hole has been machined using the fine electric discharge machine 2. Carry out the work of importing. When the wire electric discharge machine 1 is set to the ball P, the wire electric discharge machine 1 is operated to perform electric discharge machining on the workpiece W into a predetermined machining shape. When the wire electrical discharge machining is completed on the workpiece W, the pallet P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or is carried out to the base, that is, the setup station run 36. Ru.

In the wire electrical discharge machine 1, the work @IJW is set in advance on each pallet P, and the pallet P is placed on a processing table 75 fixed to a jig base 74 electrically insulated on an X-Y table. It is automatically carried in and out by the delivery device 7.

This wire electric discharge machine 1 includes a filtration device 21 for filtering the machining fluid used during electric discharge machining, and a pallet press for carrying the baren P from the intermediate transfer device 7 to the machining table 75 and pushing it to set it. A device 77, a clamp device 78 provided on the processing table 75 to fix the baren) P on the processing table 75, and an openable/closable clamp device 78 provided on the processing tank 76 attached to the jig base 74 to prevent scattering of processing fluid. A processing tank cover device 79 with a slide cover 80 serving as an opening/closing door is provided. A jig base 74 is fixed on the X-Y table of the wire electric discharge machine 1 in an electrically disconnected state, and a machining tank 76 is attached to the jig base 74.
A processing tank cover device 79 is provided inside the processing tank 6 . Further, a pair of processing tables 75 serving as position reference means are fixed to the upper surface of the jig base 74. These processing tables 75 are provided with clamp devices 78 located on both sides of the jig base 74.
and a pallet pressing device 77 are attached.

The machining table 75 in this wire electric discharge machine 1 is
This will be explained with reference to FIGS. The processing table 75 extends corresponding to both ends of the pallet P and is fixed to the jig base 74 so as to be able to support both ends of the pallet P. The mounting structure between the processing table 75 and the jig base 74 is not particularly limited. The processing table 75 is
It is configured to move along with the horizontal movement of a table that is servo-moved by an NC device, and its positional relationship with respect to the running path along which the wire electrode WE runs is determined in advance. A guide roller 83A is provided at the entrance/exit portion of the processing table 75.

The connecting bars 82 on both sides, which are attached to the processing table 75 so as to be movable up and down relative to the processing table 75, have a large number of guide rollers 83 facing both sides of the pallet P in order to guide the pallet P when the pallet P is pressed. Each is fixed and rotatable. These guide rollers 83 function to smoothly move the pallet P with respect to the processing table 75. That is, the connecting bar 82 has guides 8 provided at both ends.
It is supported by 6A and can be moved up and down by the operation of cylinder 78C. In addition, at the upper end of the processing table 75,
A reference metal fitting 81, which is a positioning member, is set. The upper surface of the reference fitting 81 functions as a reference surface 8Is. When loading and unloading the barrel (P), the connecting bar 82 moves upward by the operation of the cylinder 78C, and the upper surface of the guide roller 83 protrudes above the reference surface 813 of the reference fitting 81 to guide the loading and unloading of the barrel (P). I do.

Further, on each reference surface 29 and 30 of the reference fittings 29 and 30 attached to the baren) P, pallet pressing devices 77 and 77 are installed.
Positioning stopper 84 provided on the processing table 75 by A.
Pressed into 87. In this wire electric discharge machine 1, the pallet pressing device 77 that presses the pallet P to a predetermined position in the forward direction of the processing table 75 presses the reference surface 29K of the pallet P against the positioning stopper 84 provided on the processing table 75. There are cylinders 86 provided on the processing table 75 on both sides of the table 75. In addition, the pallet P is placed on the processing table 7.
The pallet pressing device 77A presses the reference surface 30K of the side surface of the baren P against the positioning stopper 87 provided on the processing table 75.
A cylinder 8 provided on the processing table 75 in the front and back direction of the processing table 75
It has 8. These cylinders 86, 88 are double-acting cylinders in which fluid chambers are formed on both sides of the piston that reciprocates within the cylinder, and by introducing fluid into the fluid chamber on either side, the piston moves into the cylinder. 86.
Move back and forth within 88.

In the pallet pressing device 77 that presses the front end of the barrel l-P against the positioning stopper 84 of the processing table 75, one end of the cylinder 86 is rotatably attached to the processing table 75 at a pivot point 86P, and a piston in the cylinder 86 A pressing arm 91 is connected to the rotating shaft 65 at the end of the fixed piston rod 90.
It is installed so that it can rotate freely around the center. Further, the pressing arm 91 is rotatably attached to a rotating shaft 66 attached to the processing table 75. Therefore, when the piston rod 90 extends from the cylinder 86, the end 94 of the pressing arm 91 pivots upward around the rotating shaft 66, as shown by the solid line in FIG. 28, and presses the end of the barrel P. I will do it.

On the other hand, if the piston rod 90 is retracted into the cylinder 86, as shown by the line M in FIG.
The end portion 94 of 1 is pivoted downward about the rotating shaft 66, and the hole for carrying out the baren) P becomes available.

In addition, in the barent pressing device j77A that presses the side end of the baren (P) against the positioning stopper 87 of the processing table 75, the end of the piston rod 89 fixed to the piston in the cylinder 88 is brought into contact with one side of the pallet P. Possibly 1 power. Therefore, when the cylinder 88 operates and the piston rod 89 starts to extend, the tip end surface of the piston rod 89 comes into contact with the side surface of the balent P, presses the pallet P in the lateral direction, and pushes the reference metal fitting 30 provided on the side surface of the pallet P. By bringing the reference surface 30K of the machine into contact with a positioning stopper 87 provided on the processing table 75, the baren) P can be positioned at a predetermined position on the side.

In addition, when positioning the pallet P on the processing table 75 by bringing the finished surface of the lower surface of the pallet P, that is, the reference surface 2, into contact with the reference surface 81S of the reference metal 81S of the processing table 75, the cylinder 78C in the opposite direction to the above, connecting bar 8
2 downward, the upper surface of the guide roller 83 is lowered below the reference surface 813 of the reference fitting 81, and the guide roller 8
3. Make sure that it does not become an obstacle to positioning. Therefore, the finished surface of the lower surface of the baren) P, that is, the reference surface 2, is the reference metal fitting 8.
1, the pallet 7) P is in contact with the reference surface 813 of the processing table 75.
The position can be set accurately and reliably in a predetermined height direction.

Further, in this wire electrical discharge machine 1, the pallet P is mounted on the processing table 75 of the wire electrical discharge machine 1 by a clamping device 78.
is fixed by a plurality of clamps 85, and has edges on both sides pressed by the clamps 85. Regarding this clamping device 78, in particular, FIG.
It is shown in FIGS. 26, 28 and 29. The clamp devices 78 are attached to the sides of each processing table 75 via brackets 78B, and have the function of fixing the pallet P on the processing table 75 by being positioned opposite to each other on both sides of the pallet P. . The clamping device 78 is arranged on the side of the central part of the connecting bar 82 and is attached to the bracket 78B.
A cylinder 78c is fixed to the processing table 75, a piston door 8R1 is fixed to a piston 78P that moves up and down by the operation of the cylinder 78C, and the piston door 8R is attached to the upper end of the piston door 8R and is located above the connecting bar 82. It has a clamp 85.

Furthermore, the clamp device 78 is provided with a valent fixing sensor and a pallet release sensor (not shown) in order to detect when the cylinder 78C is activated to fix or release the pallet P onto the processing table 75. . The upper end of the piston door 8R is a through hole 8 provided in the clamp 85.
The clamp 85 is fixed to the piston ron door 8R by passing through the piston ron door 8H and screwing in a threaded nut 85N formed at the upper end of the piston ron door 8H.

Therefore, when fluid is introduced into the cylinder 78C through the fluid passage, the piston 78P moves downward and the piston rod 78R moves downward. Therefore, the clamp 85 fixed to the piston door 8H moves downward. When the clamp 85 is moved downward, the pallet P is fixed on the processing table 75 by pressing the baren (P) onto the processing table 75. Further, moving the clamp 85 of the clamp device 78 upward to release the fixation of the balent P to the processing table 75 can be achieved by operating the cylinder 78C in the opposite direction.

In this wire electric discharge machine 1, the machining tank cover device 7
9 is particularly shown in FIGS. 30, 31, 32 and 33.

This machining tank cover device 79 is
- Processing tank 76 attached to jig base 74 on Y table
When the workpiece W is subjected to wire electric discharge machining, it prevents machining fluid, machining debris, etc. from scattering, or functions as a guard for safety. The processing tank cover device 79 includes an air cylinder 92 and a cover 93 attached to the processing tank 76.
, a manual opening/closing cover 94C1 disposed on the side surface of the cover 93 and pivotally connected to the cover 93, and a slide cover 80 that is slidable with respect to the cover 93 and constitutes an entrance/exit for a barrel (P). The processing tank cover device 79 includes an air cylinder 92 that is an actuator that slides a slide cover 80 for opening and closing the entrance/exit of the pallet P on which the workpiece W is set. Air cylinder 92
is a double-acting cylinder, and the cylinder is made of non-magnetic material. A piston 95 made of magnetic material is disposed within the cylinder of the air cylinder 92, and the piston 95 is made of magnetic material.
The piston 95 reciprocates within the air cylinder 92 by supplying air to either side of the piston 95 within the air cylinder 92. The slide cover 80 of the processing tank cover device 79 is located on the surface facing the pallet loading/unloading side of the intermediate transfer device 7. Regarding the reciprocating mechanism of the slide cover 80, an air cylinder 92 and a piston 95 that reciprocates within the air cylinder 92 are arranged below the processing tank cover device 79. Air passage 9 provided in the section
This is achieved by supplying air to either one of 7. A cover guide 96 is fixed to the cover 93,
A guide roller 98 is attached to the cover guide 96. In addition, the slide cover 80 has a guide rail 99.
are fixed, and a guide roller 98 fits into the guide rails 9-9. Further, a bracket) 80B is fixed to the lower end of the slide cover 80, and the bladder 7)
A bracket 80M made of a magnet is fixed to the end of 80B. This bracket 80B is attached to the air cylinder 9
The air cylinder 92 attracts a piston 95 made of a magnetic material that reciprocates within the air cylinder 92, and reciprocates along the outer surface of the air cylinder 92. Therefore, when the piston 95 reciprocates within the cylinder, the bracket 80M adsorbing the piston 95 moves in accordance with the movement of the piston 95. Bracket 80M
When the bracket 80B moves back and forth, the bracket 80B moves back and forth.

The slide cover 80 is guided by a guide roller 98 provided on a cover guide 96 to reciprocate the bracket 80B.

In these seven processing tank cover devices, the slide cover 8
0, an open end sensor 80F detects the open state of the slide cover 80 and a closed end sensor 80E detects the closed state of the slide cover 80. The open end sensor 80F and the closed end sensor 80E can be provided on the cover 93, the slide cover 80, or the air cylinder 92 as shown. Therefore, the slide cover 80 is detected by the open end sensor 80F.
is in the open state, and upon receiving the detection signal, the controller controls the ball P located in the intermediate transfer device W7 to move onto the processing table 75 of the wire electric discharge machine 1, Alternatively, the valent P on the processing table 75
is controlled to be moved from the processing table 75 to the intermediate transfer device 7. Further, the closed state of the slide cover 80 is detected by the closed end sensor 80E, and the controller receives the detection signal and controls the wire electric discharge machining Ill to operate.

Furthermore, regarding the wire electric discharge machine 1 in this FMS, in particular, the reference surface 81S, which is the upper surface of the reference metal fitting 81, which is a positioning member arranged on the processing table 75, and the reference surface, which is the finished surface formed on the back surface of the balent P, Surface 28, Valen l-
Reference surface 29F of the reference fitting 29 placed on the front end surface of P, reference surface 30 of the reference fitting 30 placed on the side end surface of P (baren)
A reference surface cleaning device is provided to clean the reference surfaces 84S and 87S formed on the positioning stoppers 84 and 87 provided on the processing table 75.

This reference surface cleaning device uses a water jet nozzle that sprays water on the cleaning surface and an air jet that sprays air from the nozzle to the bottom of the tank, and removes fine machining debris generated during wire electrical discharge machining by the wire electrical discharge machine 1. Exclude. Therefore, each reference surface can be cleaned every time the pallet P is set or at every predetermined period, so the setting of the pallet P on the processing table 75 is always reliable and does not adversely affect the processing accuracy.

As described above, the device for positioning the ball P onto the processing table 75 in this wire electric discharge machining Ill is configured and can operate as follows. That is, the slide cover 80 of the machining tank cover assembly W79 provided in the wire electric discharge machine l
is opened, the cylinder 78C of the clamp device 78 is operated to raise the clamp 85, and the cylinder 86A is operated to raise the connecting bar 82. The rise of the connecting bar 82 causes the guide roller 83 to rise. In this state, the lifter 100 of the intermediate transfer device 7 sends the heparet (P) onto the processing table 75. At this time, the upper surface level of the guide roller 83 is at the level of the lifter 1 of the intermediate transfer device M7, which will be described later.
It is preferable that the level is the same as the upper surface level of each roller provided on the lifter 00. After that, the push-pull arm 101 of the lifter OO operates and moves forward, and the pallet P is moved to the processing table 75.
0 Next, the lifter 100 of the intermediate transfer device 7 is slightly lowered, the operating pin 170 provided on the push-pull-out arm 101 is disengaged from the recess 33 formed in the pallet P, and then the push-pull-out arm 101 is retracted. At this time, the solenoid valve of the cylinder 86A is set to the neutral position by a command from the controller, and the pallet P is lowered by its own weight, and the connecting bar 82 and guide roller 83 are lowered by the load of the pallet P. As a result, the lower surface of the pallet P comes into contact with the reference surface 813 of the reference fitting 81 of the processing table 75.

In this state, the pallet pressing device 77 is activated to rotate the pressing arm 91 around the rotating shaft 66, and as shown by the solid line in FIG. 24, the pressing arm 91 presses the rear end of the barrel l-P. and press it against the reference surface 843 of the positioning stopper 84 of the processing table 74.

The front end surface of the pallet P is set in position by the action of the pallet pressing device 77, and then the cylinder 88 of the pallet pressing device 77A is operated to push the side end surface of the pallet P laterally with the piston rod 89, and the side of the pallet P is Machining table 75 for end face
The pallet P is pressed against the reference surface 30K of the reference fitting 30 provided on the table 75, and the side end surface of the pallet P is positioned on the processing table 75. After positioning the pallet P on the processing table 75 in this way, the clamp device 78 is activated to press the pallet P, and the reference surface 28 of the lower surface of the pallet P is aligned with the reference surface 813 of the reference fitting 81 of the processing table 75. If the pallet P is brought into contact with the pressed state and fixed on the processing table 75, the pallet P can be set at a predetermined processing position on the processing table 75. Of course, in all of these operating steps, each detection signal from each sensor is input to the controller, and based on the human input signal, the controller issues an operating signal for the next step to operate a predetermined device. . Next, when the position setting of the barrel 1-P on the processing table 75 is completed, the slide cover 80 of the processing tank cover device 79 slides to close the loading/unloading entrance for the barrel 1-P.

In this state, wire electrical discharge machining ml is activated and the pallet P
After the automatic wire feeding device inserts the wire into the workpiece W set in advance, wire electrical discharge machining is started.

Electric discharge machining is performed on the workpiece W, a predetermined machining shape is machined on the workpiece W, and when the electric discharge machining is completed, the automatic wire supply device cuts the wire, and then the machining tank cover device 7
9 operates, the slide cover 80 slides, and the pallet P
Then, the pallet pressing device 77 opens the loading/unloading entrance.
is operated in the opposite direction to move the pressing arm 91 backward as shown by the chain line in FIG. 28, and the pallet pressing device 77A
is inactivated to eliminate the pressing force of the piston ROLAD 89. Furthermore, the clamp device 78 is actuated to clamp the clamp 85.
and the guide roller 83 to lift the pallet P.
Then, the intermediate transfer device 7 operates to move the pallet P from the processing table 75 to the intermediate transfer device 7.

Next, the small and large electrical discharge machine 2 in the processing machine group will be explained with reference to FIGS. 34 to 38.

Fig. 34 is a plan view of the small and large electrical discharge machine, Fig. 35 is a side view of the pipe electrode exchange device, and Fig. 36 is the line mx-- of Fig. 34.
37 is a plan view of the index table, and FIG. 38 is a sectional view taken along line BB in FIG. 37.

Compared to the wire electrical discharge machine 1 described above, this small and large electrical discharge machine 2 is capable of performing small and large holes and wire electrical discharge machining on a workpiece W that has been set in advance on the barrel l-P using a pipe electrode PE. It is for machining a start hole for passing the wire electrode WE through, and the device for positioning the ball I-P on the machining table and the machining tank cover device are the same as those in the wire electric discharge machine 1. equipment is available.

Therefore, a redundant explanation of the structure and operation of the above device will be omitted here, and only the pipe electrode PE exchanging device and the pipe electrode PE setting device will be explained. Further, although it is possible to use the pipe electrode exchange device disclosed in the above-mentioned Japanese Unexamined Patent Publication No. 1-246021 for this FMS, the pipe electrode exchange device described below is preferable.

The machining operation of this small and large electric discharge machine 2 can be performed as shown in FIG. 55, for example. When the fine and large electrical discharge machine 2 is ready for machining, the controller issues a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 moves the small and large electrical discharge machine 2 to the stacker 4.
A small and large electric discharge machine 2 in which a pallet P loaded with a workpiece W to be machined into a predetermined shape by wire electric discharge machining, which is stored in column 19, is carried into the small and large electric discharge machine 2 for machining a start hole. When the hole P is set in the electric discharge machine 2, the small and large electric discharge machine 2 is operated to perform electric discharge machining of a fine hole at a predetermined location on the workpiece W.

Craft! I! When the electric discharge machining of the start hole is completed for the FIW, the barn P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or is carried into the wire electric discharge machining 111. Ru.

This fine and large electric discharge machining 112 is equipped with a pipe electrode exchange device 2C. This pipe electrode exchange device 2C can use a conventionally used pipe electrode PE,
An index table 102 in which ■ index confirmation notches 102C are formed in order to index a large number of pipe electrodes PE.
and a chuck pallet 10 that supports the pipe electrode PE.
5. This chuck pallet 105 is configured to be replaceable with respect to the index table 102. In the chuck pallet 105, support holes 103 for supporting the chuck portion PEC of the pipe electrode PE are formed at equal distances in the circumferential direction on a concentric circle from the rotation center point. The support hole 103 has a cutout groove 104 that opens outward in the radial direction to allow the pipe electrode PE to enter and exit. The notch groove 104 of the support hole 103 is formed on the chunk pallet 1.
05 and the center point of the support hole 103 are divided into states. The diameter of the support hole 103 is larger than the outer diameter of the cap nut PEN of the pipe electrode PE. The chunk pallet 105 has a mounting reference hole 108 and a mounting reference hole 10 in the center thereof for mounting the chuck valent 105 to the index table 102.
Equally divided tightening holes 106 (
(four in the figure), and an indexing origin i recognition hole 107 for confirming the indexing origin of the pipe electrode PE.

In addition, the center point of the chuck balent 105 and the support hole 10
One tightening hole 106 and one indexing origin confirmation hole 107 are located on the line connecting the center points of 3. This index origin confirmation hole 1
07 is configured so that the index origin can be confirmed by matching with the index confirmation notch 102C of the index table 102.

This pipe electrode exchange device 2C has a chuck pallet 1
It has an indexing mechanism that indexes 05.

The indexing mechanism is composed of a stepping motor 109 and a reduction transmission device 11110 installed between the stepping motor 109 and the chuck pallet 105. Furthermore, the fine electric discharge machine 2 has a mechanism for inserting an electrode holder of the pipe electrode PH supported in the support hole 103 of the chuck pallet 105 into the main shaft 111, and
It has a mechanism for moving from the standby position of 03 to the center position of the main shaft 111 of the small and large electrical discharge machine 2. This main shaft 111
The center of is the center of the pipe electrode PE and is the center point during processing. The insertion mechanism operates from a vertically moving cylinder 112 that vertically moves a chuck pallet 105 provided in the pipe electrode exchange device 2C. Further, the moving mechanism for moving the chuck pallet 105 to the center position I of the main shaft 111 is controlled from the longitudinal movement cylinder 113. This back-and-forth movement cylinder 113 has the function of moving the indexed pipe electrode PE to the center position of the main shaft 111 at the forward end, and retracting the chuck pallet 105 to a standby position at the backward end. Furthermore, this pipe electrode exchange device 2C has a means for checking the indexing origin of the chuck barrel l-105 and a means for checking whether or not the pipe electrode PE is present in the support hole 103. The starting point confirmation means is composed of a photoelectric switch 114 attached to a frame 116 that supports the stepping motor 109. Further, the presence/absence checking means includes a photoelectric switch 115 that is attached to the frame 116 that supports the stepping motor 109 and that detects whether or not the pipe electrode PE is supported in the support hole 103 facing the center of the main shaft 111. There is.

Since this pipe electrode exchange device 2C is configured as described above, it can operate as follows. Fine electrical discharge machine 2
When attaching the pipe electrode PE to the main shaft center 111 of the main shaft center 111, the stepping motor 109 is operated to rotate the chunk pallet 105, and the support hole 103 that supports the pipe electrode PE is activated by the photoelectric switch 114, which is an indexing origin confirmation means.
Next, the support hole 103 facing the spindle center 111 is detected by the photoelectric switch 115, which is the presence/absence checking means.
It is confirmed that the pipe electrode PE is supported in the support hole 103, and if the pipe electrode PE is present in the support hole 103, the pipe electrode PE is moved to the position I of the main shaft center 111 by the operation of the longitudinal movement cylinder 113. Since a pipe electrode holder is provided on the main shaft of the small and large electrical discharge machine 2, the vertical movement cylinder 11
2 to raise the indexed pipe electrode PE of the chuck pallet 105 and insert it into the pipe electrode holder 2H of the main shaft 111. When the pipe electrode PE is inserted into the pipe electrode holder 2H, the pipe electrode PE is automatically held in the pipe electrode holder 2H.

After inserting and fixing the pipe electrode PE into the pipe electrode holder 2H, the vertical movement cylinder 112 is operated to lower the chuck pallet 105, and then the chuck baren) 105
is moved back to the standby position of the pipe electrode exchange device 2C by operating the back and forth movement cylinder 113.

In addition, when the pipe electrode PE is worn out by machining a start hole on the workpiece W, when the worn out pipe electrode PE is removed from the main shaft 111 of the small hole electric discharge machining 112, the chuck pallet 105 Support hole 1
It is confirmed that the pipe electrode PE does not exist in the support hole 103 using the photoelectric switch 115, which is the presence confirmation means.
is moved to the center of the main shaft 111 to align the center of the support hole 103 with the center of the main shaft 111, and the exhausted pipe electrode PE is received in the support hole 103. At this time, the pipe electrode PE remaining in the electrode holder PEH is passed through the notch 104 of the support hole 103, and the support hole 103 is positioned below the pipe electrode PE.
Release the holding state of ER and insert the electrode holder PEH into support hole 1.
03 6 Next, pipe electrode exchange device 2C
The chuck pallet 105 is moved back to the standby position.

In this fine and large electrical discharge machining 112, the above-mentioned pipe electrode exchange operation is automatically repeated to remove the chuck pallet 105.
A large number of pipe electrodes PE loaded in the pipe electrode P
By replacing the pipe electrode PE with a new one, it is possible to automatically and continuously perform fine and large electrical discharge machining on the workpiece W. .

Note that the automatic attachment and removal mechanism for the pipe electrode holder and pipe electrode PE in the fine and large electrical discharge machine 2 can use a conventional pipe electrode exchange mechanism, but for example, the mechanism disclosed in Japanese Utility Model Application Publication No. 1-143321 It is preferable to utilize a pipe electrode holding device which has a structure similar to that shown in FIG. Since the pipe electrode holding device is described in detail in Japanese Utility Model Application Publication No. 1-143321, its explanation will be omitted here.

(Hereinafter, this page margin) Next, the die-sinking electrical discharge machine 3 of the processing machine group in this FMS will be explained with reference to FIGS. 39 to 45. Fig. 39 is a plan view of the processing table part of the die-sinking electrical discharge machine, Fig. 40 is a front view of Fig. 39, Fig. 41 is a side view of the processing table part of the die-sinking electrical discharge machine, and Fig. 42 is the machining part. 43 is a front view of the tank device shown in FIG. 42, FIG. 44 is a sectional view showing a part of the wall of the processing tank shown in FIG. 42, and FIG.
It is an explanatory view showing a part of mechanism of the opening/closing door of the processing tank.

In this FMS, the die-sinking electrical discharge machine 3 can be equipped with an automatic electrode exchange device, etc., as in the conventional machine. The die-sinking electric discharge machine 3 in this FMS is almost the same as the conventional one except for the mechanism for carrying out the pallet P on the processing table, the mechanism for fixing the pallet P on the processing table, and the processing tank. Therefore, the different devices described above will be explained in particular. Further, in the drawings, the same reference numerals are given to the die-sinking electric discharge machine 3 as compared to the wire electric discharge machine 1, to parts having the same functions.

The machining operation of this die sinking electric discharge machine 3 can be performed as shown in FIG. 57, for example. When the die-sinking electrical discharge machine 3 is ready for machining, the controller sends a signal to the NC program and also issues a command to the stacker crane 6, so that the stacker crane 6 moves the die-sinking electrical discharge machine 3 to the stacker 4.
A work is carried out to carry in a pallet P on which a workpiece W stored in the shelf 19 of 1 is set, or a pallet P on which a workpiece W which has been machined by the wire electric discharge machine 1 is set. When the pallet P is set in the die-sinking electrical discharge machine 3, the die-sinking electrical discharge machine 3 is activated to perform electrical discharge machining on the workpiece W into a predetermined machining shape. When die-sinking electrical discharge machining is completed on the workpiece W, the pallet P carrying the workpiece W is stored on a predetermined shelf 19 of the rack 4 by the stacker crane 6, or
Alternatively, it is carried out to the setup station 36.

In this die-sinking electric discharge machine 3, the workpiece W is each baren)
The pallet P is set in advance to a jig base 74 that is electrically insulated on an X-Y table.
The intermediate transfer device 7 and the elevating device 122 automatically carry out the work to the processing table 75 fixed to the processing table 75 . This die-sinking electric discharge machine 3 includes a filtration device 21 that circulates and filters the machining fluid used during electric discharge machining, and a valent support member 120 that supports the pallet P from the intermediate transfer device 7. , the pallet support member 1
20 in the processing tank 76 to move the pallet P up and down, a clamp device 78 provided on the lifting device 122 to fix the pallet P on the pallet support member 120, and a pallet lowered by the lifting device 122. 7) A pallet pressing device 77.77A that places P on the processing table 75 and presses the end of the barn P to set the position, and a processing fluid provided in a processing tank 76K attached to the jig base 74. A processing tank device 79K having an openable/closeable door 80D for accommodating the processing tank is provided. X in die-sinking electrical discharge machine 3
A jig base 74 is fixed on the -Y table in an electrically disconnected state, and a processing tank 76K is attached to the jig mousse 74.

Furthermore, a pair of processing tables 75 serving as position reference means are fixed to the upper surface of the jig base 74 or the bottom wall 67.

The jig base 74 is provided with clamp devices 78 located on both sides of the processing table 75. Pallet pressing devices 77° and 77A are attached to the processing table 75 in order to fix the loaded baren) P in a predetermined position. The pallet support member 120 is a support roller (three on each side is shown in the figure) attached to a connecting bar 82 fixed to a piston rod 82P that moves up and down within the cylinder 121. Each connecting bar 82 includes: A guide roller 126 is provided to guide the side and top surfaces of the pallet P when positioning the barrel +-p with the pallet pressing device 77, 77A.

The processing table 75 in this die-sinking electrical discharge machine 3 extends and is fixed to the jig base 74 so as to support both ends of the pallet P. The mounting structure between the processing table 75 and the jig base 74 is not particularly limited. The processing table 75 is an NC
The tank bottom is moved horizontally with the horizontal movement of a table that is servo-moved by the device, and the positional relationship with respect to the travel path along which the engraving electrode RE moves up and down is determined in advance. Connecting bars 8 on both sides attached to the lifting device 122 so as to be movable up and down with respect to the processing table 75
2, when pressing the pallet P, the pallet P is placed on the processing table 75.
In order to fix the pallet 10 upwardly, clamps 85 facing each other are fixed to both sides of the pallet 10 so as to be movable up and down.

This elevating device 122 has two cylinders 121 provided in the front-rear direction and two cylinders 121 provided in the left-right direction. Connecting bars 82 disposed on both sides are attached to each cylinder 121 on both sides via brackets 82B.

Each connection bar 82 has cylinders 121 provided at both ends.
It can be moved up and down by the operation of . The vertical stroke of the connecting bar 82 is greatly reduced,
The height ranges from the height at which the barrel I-P is carried in and out of the intermediate transfer device 7 to the height at which the die-carving process is set on the processing table 75. At the rear of the connection bar 82, a shaft 82S is rotatably attached to the connection bar 82 via a bracket 82C. Pinions 124 are attached to both ends of the shaft 82S.

On the other hand, racks 82R are provided on both sides of the processing table 75 extending upwardly. Each.

A pinion 124 that moves up and down is engaged with the pinion 82H. Therefore, the vertical movement of the connecting bar 82 due to the operation of the four cylinders 121 causes the pinion 12.4 to
The four cylinders 1 engage with each other on R and move up and down.
Bracket 1-82B, which moves up and down with the operation of 21, operates synchronously, allowing the connecting bar 82 to move up and down in a horizontal state.

In this die-sinking electric discharge machine 3, when loading/unloading the barn (P), the connecting bar 82 moves slightly upward by the operation of the cylinder 121, releases the fixed state of the pallet P in the clamp 85, and transfers the pallet P to the intermediate transfer device N7. The state is such that it can be carried out, or the baren (P) from the intermediate transfer device 7 can be carried in. Furthermore, a reference fitting 81 for vertical position setting, which is a positioning stopper, is attached to the upper end of the processing table 75, that is, on the base (FIG. 40). The upper surface of the reference fitting 81 functions as a reference surface 81S. The barent P is lowered onto the processing table 75 using the lifting device 122, and the reference surface 28 of the lower surface of the barent P is aligned with the reference metal fitting 8 of the processing table 75.
1, and place the baren) P in contact with the reference surface 81S of the processing table 7.
5, the cylinder 121 is activated, the clamp device 78 is activated, and the clamp 85 is used to secure the pallet P.
Press down. Therefore, the finished surface of the lower surface of the pallet P, that is, the reference surface 28, comes into contact with the reference surface 81S of the reference fitting 81, and the pallet P is accurately and reliably positioned in a predetermined height direction with respect to the processing table 75. That will happen. Also,
A magnet 125 is attached to a portion of the connecting bar near the reference surface 28, which is pressed toward the barent P side by the spring force of a spring and can sink against the spring force when pressed in the forward direction. The magnet 125 is connected to the cylinder 121
When the clamp device is activated, the baren) P
It has the function of preventing the position of the device from moving.

Furthermore, in this die-sinking electric discharge machine 3, pallet pressing devices 77.77A are provided on the reference surfaces 29 and 30 of the pallet P.
The positioning stopper 84.8 provided on the processing table 75 by
Pressed to 7. The pallet pressing device 77 that presses the baren) P to a predetermined position in the forward direction of the processing table 75 is
In order to press the reference surface 29 of the pallet P against the positioning stopper provided on the processing table 75, that is, the reference surface 84S of the reference fitting 84, cylinders 86C provided on the processing table 75 are provided on both sides of the processing table 75. Also, a pallet pressing device 77A that presses the pallet P to a predetermined position in the side direction of the processing table 75
The reference surface 30K on the side surface of the pallet P is the reference surface 87S of the positioning stopper, that is, the reference fitting 87 provided on the processing table 75.
The processing table 75 is moved in the front and back direction of the processing table 75 to press the
It has a cylinder 88 provided at. These cylinders 86C and 8B have fluid chambers formed on both sides of a piston that reciprocates within the cylinder, and when fluid is introduced into the fluid chamber on either side, the piston moves into the cylinder 86C.
, 8B.

In the balent pressing device 77 that presses the side end of the balen l-P against the reference fitting 84 of the processing table 75, the cylinder 86C
The end of the piston rod 90 fixed to the piston inside is
It is configured so that it can come into contact with one side of the pallet P. Therefore, when the cylinder 86C is actuated and the piston rod 90 starts to extend, the tip end surface of the piston rod 90 comes into contact with the rear end surface of the pallet P, and presses the barrel l-P in the front direction. The pallet P can be positioned at a predetermined position in front by bringing the reference surface 29S of the reference metal fitting 29 into contact with the reference surface 84S of the reference metal fitting 84 provided on the processing table 75.

In addition, the reference plane 30K of the side end of the barrel l-P is
5, the end of the piston rod 89 fixed to the piston in the cylinder 88 is a baren).
It is configured so that one side of P can come into contact with it. Therefore, if the cylinder 88 operates and the piston rod 89 begins to extend,
The tip end surface of the piston rod 89 contacts the side surface of the pallet P, presses the baren P in the side direction, and causes the reference surface 30K of the reference fitting 30 provided on the side surface of the pallet P to contact the positioning stopper 87 provided on the processing table 75. By bringing them into contact with each other, the pallet P can be positioned at a predetermined position on the side.

Further, in this die-sinking electrical discharge machining 113, the valent P is fixed to the processing table 75 of the die-sinking electrical discharge machine 3 by a plurality of clamps 85 of the clamp device 78, but both sides pressed by the clamps 85 are It has edges.

The clamp device 78 includes four cylinders 121, a piston rod 82P that moves up and down by the operation of the cylinders 121, a connecting bar 82 on both sides fixed via a bracket 82B attached to the piston rod 82P, and a central portion of the connecting bar 82. It consists of a clamp 85 attached to the section. Further, in order to smoothly move the connecting bar 82 up and down, a guide column 82G is fixed to the processing table 75. The clamp device 78 includes a device for detecting that the cylinder 121 is activated to fix or release the baren (P) onto the processing table 75.
Although not shown, a pallet fixing sensor and a pallet release sensor are provided.

In order to fix the pallet P on the reference fitting 81 of the processing table 75 using the clamp 85, fluid is introduced into the cylinder 121 through the fluid passage and the piston is moved downward.
Piston rod 82P moves downward. Therefore, the clamp 85 attached to the piston rod 82P via the bragano 82B and the connecting bar 82 moves downward. The downward movement of the clamp 85 presses the pallet P onto the processing table 75 and fixes the pallet P to the processing table 75. In addition, in order to move the clamp 85 of the clamp device 7 upward and release the fixation of the pallet P to the processing table 75,
This can be achieved by operating the cylinder 121 in the opposite direction.

In this die-sinking electric discharge machining [13], the machining tank device 79K is particularly shown in FIGS. 42, 43, 44, and 45.

This machining tank device 79 has a machining tank 76K attached to the jig base 74 on the XY table of the die-sinking electrical discharge machine 3, and is filled with machining fluid when die-sinking electrical discharge machining is performed on the workpiece W. It is something to keep. The machining tank 76 is formed in a sealed structure to be filled with machining fluid, and has an open upper part, and has a cutout opening 80A for carrying out the pallet P with the workpiece W set thereon. Front wall 76F, rear wall 76
The bottom of the tank is connected to the R1 side walls 76S and the internal wall 67, which is a sub-base attached to the jig base 74. Front wall 7
The notch 80A on the 6F is formed at the bottom of the tank so as to be closed by a door 80D that can be opened and closed. Processing tank device 79
, the above-mentioned walls forming the processing tank 76K, the front wall 76
An opening 80A formed in F as an ejection hole for pallet P,
In order to seal or open the opening 80A, there is an opening/closing door 80D that is movable downward when opening with respect to the front wall 76F, a cylinder 92A for vertically moving the opening/closing door 80D, and an opening/closing door 80D that is operated by the operation of the cylinder 92A. It has a vertical movement mechanism that moves it up and down. In the processing tank device 79K, the vertical movement mechanism of the opening/closing door 800 includes an opening/closing door 80D for opening/closing the opening 80A, a guide column 127 provided on both sides of the opening/closing door 80D, and fixed to the front wall 76F.
cylinder 92A attached to the upper end of the cylinder 92A;
A piston rod 95P is fixed to a piston that reciprocates in the vertical direction, and the lower end of the piston rod 95P is attached to the bottom of the tank from a bracket 92B fixed to the lower part of the opening/closing door 80D.

That is, the cylinder 92A and the piston rod 95P function as an actuator that moves the opening/closing door 80D up and down.

Furthermore, in the vertical movement mechanism of the opening/closing door 80D, the guide column 127 functions as a guide for the opening/closing door 80D, and the guide groove 118 formed in the guide column 127 has an opening/closing W80.
Guide rollers 117 provided at the upper and lower portions of both sides of D are engaged (FIG. 45). A bracket 76B is fixed to the guide column 127, and a cylinder that operates the piston rod 80P is attached to the bracket 76B. 80C is fixed (Fig. 44). When the piston rod 80P protrudes due to the operation of the cylinder 80C, the piston rod 80
The tip of P functions to press the opening/closing W80D against the front wall 76F. That is, the opening/closing door 80 is opened/closed by the operation of the cylinder 92A.
D and open/close the opening 80A of the front wall 76F.
When closed at 0D, the cylinder 80C is actuated and the piston rod 80P presses the open/close @80D against the front of the front wall 76F. Further, a sealing material 803 is disposed between the opening/closing door 80D and the front wall 76F, and the opening/closing door 80D and the front wall 76F contact each other in a sealed state; Liquid leakage can be prevented.

This processing tank device 79K includes an open end sensor that detects the open state of the door 80D and a closed end sensor that detects the closed state of the door 80D in order to detect the open/closed state of the door 80D.

The open end sensor and the closed end sensor can be provided on the front wall 76F, the opening/closing door 80D, the cylinder 92A, or the like. Therefore, the opening/closing door 80D is detected by the open end sensor.
Upon receiving the detection signal, the controller transfers the ball P located in the intermediate transfer device 7 to the pallet support member 120 of the die-sinking electrical discharge machine 3.
Control is performed to move the pallet P on the processing table 75 upward from the valent support member 120 to the intermediate transfer device 7. Further, the closed state of the opening/closing door 80D is detected by a closed end sensor, and upon receiving the detection signal, the controller injects machining fluid into the machining tank 76K and controls the die-sinking electrical discharge machine 3 to operate.

As mentioned above, the processing table 7 in this die-sinking electrical discharge machine 3
Since the positioning device for the pallet P to the tank 5 is located at the bottom of the tank, it can be operated as follows. First, in order to open/close the machining tank device 79 provided in the die-sinking electrical discharge machine 3 and open the opening 180D, the cylinder 92A is actuated to extend the piston rod 95P downward, and the opening/closing 1 [80D is lowered to open the opening 80A.
to open.

On the other hand, the pallet support member 12 is moved by operating the lifting device 122.
0, the cylinder 12 of the clamping device 78
1 to extend the piston rod 82P and raise the connecting bar 82. The rise of the connecting bar 82 is caused by a baren)
P is the pallet support member 12 located above the processing table 75
0 so that it can be transported. The pallet P is sent onto the pallet support member 120 by the lifter 100 of the intermediate transfer device 7. Push-pull arm 10 of lifter 100
1 operates and moves forward, and the pallet P is supported by the pallet support member 1.
Push it on 20. Next, the lifter 100 of the intermediate transfer device 7 is slightly lowered, the locking bin 7P provided in the push-pull arm 101 is released from the recess 33 formed in the pallet P, and then the push-pull arm 10 of the lifter 100 is removed.
1 to the intermediate transfer device 7 side. Thereafter, the cylinder 121 of the lifting device [22] is operated to lower the pallet support member 120 on which the balent P is mounted onto the processing table 75. When the pallet support member 120 moves up and down, the magnet 125 attached to the connection bar 82 is pushed out toward the barrel P by the force of the spring, and prevents the barrel l-P from moving on the pallet support member 120. As a result, the reference surface 2 formed on the lower surface of the pallet P is placed on the processing table 75.
It is placed in a state of contact with the reference surface 81S of the reference metal fitting 81.

In this state, the pallet pressing device 77 is activated to extend the piston rod 90 and press the rear end of the balent P against the positioning stopper of the processing table 75, that is, the reference surface 84S of the reference fitting 84.

The front end surface of the barrel I-P is positioned by the action of the pallet pressing device 77. Next, the cylinder 88 of the pallet pressing device 77A is actuated to push the side end surface of the barrel (P) laterally with the piston rod 89, and the reference surface 303 of the reference fitting 30 on the side end surface of the barrel I-P is placed on the processing table 75. Press against the reference surface 873 of the provided reference fitting 87 to position the side end surface of the baren (P) on the processing table 75. Palette P like this
After positioning the clamp 85 on the processing table 75, the clamp device 78 is activated to lower the clamp 85 slightly, and the clamp 85 is lowered slightly.
5, press the baren) P against the processing table 75, bring the reference surface 28 of the lower surface of the baren) P into contact with the reference surface 81S of the reference fitting 81 of the processing table 75 in a pressed state, and press the pallet P onto the processing table 75.
Fix it on top. Therefore, the barrel l-P can be set at a predetermined processing position on the processing table 75.

Of course, in all of these operating steps, each detection signal from each sensor is input to the controller, and based on the input signal, the controller issues an operating signal for the next step to operate a predetermined device. Next, when the position setting of the barrel l-P on the processing table 75 is completed, the processing tank device 7
The cylinder 92A of 9A is actuated to raise the opening/closing door 80D, which closes the opening 80A of the front wall 76F and closes the loading/unloading entrance of the barrel (P).

In this state, the machining tank 76 is filled with machining fluid, and the die-sinking electric discharge machine 3 is operated to start die-sinking electric discharge machining on the workpiece W set in advance on the pallet P. Electric discharge machining is performed on the workpiece W, a predetermined machining shape is machined on the workpiece W, and when the electric discharge machining is completed, the machining fluid in the machining tank 76 is discharged, and then the cylinder is transferred to the machining tank device 79. 92A operates to lower the open/close W80D and open the opening 80A.
Then, open the loading/unloading entrance of P.
Piston rod 90 of pallet pressing device 77.77A.
89 is made inactive and moved backward.

Furthermore, the cylinder 121 of the lifting device 122 is operated to raise the pallet support member 120, thereby raising the pallet P. Next, the lifter 100 of the intermediate transfer device 7 operates to move the barre 7 P from the barret support member 120 to the intermediate transfer device 7 side.

Next, in the FMS in this processing machine group, in order to transfer the valent P between each processing machine 1, 2.3 and the stacker crane 6, an intermediate The delivery device 7 will be explained with reference to FIGS. 46 to 52. FIG. 46 is a front view showing the entire intermediate transfer device, FIG. 47 is a side view of FIG. 46, FIG. 48 is a front view of the upper part of the intermediate transfer device, and FIG.
The figure is a plan view of Fig. 48, Fig. 50 is a side view of Fig. 48,
Figure 51 is a front view of the lower part of the intermediate transfer device and Figure 52 is a front view of the lower part of the intermediate transfer device.
The figure is a plan view of FIG. 51.

This intermediate transfer device 7 mainly consists of a cart 163 equipped with rollers 162 that can reciprocate on a slide rail 161 laid on a base 160, and a frame 16 of the cart 163.
4, and has a push-pull arm 101 provided on the lid 100 and the lifter 100. The upper end of the frame 164 of the truck 163 is provided with a locking pin 168 that engages with the recess 32 formed in the balent P on the front end side, and a pallet seat part 168S on which the lower surface of the balen P is seated on the rear end side. ing.

The base 160 includes a trolley 16 fixed to the base 160.
A cylinder 159 serving as a driving device for No. 3, the cylinder 159
The base 1
A slide rail 161 laid on top of the slide rail 60 is provided. This slide rail 161 is connected to the stacker crane 6
The running path 5 extends horizontally at right angles to the running direction.

The truck 163 includes a truck frame 164 that reciprocates on a base 160, a receiving member 173 of a baren (P) formed on the upper surface of the truck frame 164, a locking pin 168 protruding from the upper surface of the receiving member 173, and a locking pin 168 on the frame. It has a lifter 100 that is mounted on and can move up and down. Two receiving members 173 are arranged above and parallel to the slide rail 161. The upper surface of the number receiving member 173 is finished, and the surface formed by the number receiving member 173 is bottomed so that it has the same level and is also parallel to the moving surface formed by the slide rail 161. It is configured.

The lifter 100 is arranged between receiving members 173,
A cylinder 166 fixed to the frame 164, a piston rod 169 that reciprocates within the cylinder 166, a piston rod 169 fixed to the piston rod 169, and a lid frame 165.
and a push-pull arm 101 mounted on the lifter frame 165. Therefore, the push-pull arm 10
1 provides a slide mechanism in which a fork-like arm 171 can be moved back and forth by a slide rail 180 with respect to the base of the lifter 100, that is, the lifter frame 165, by the operation of a cylinder 166.

The push-pull arm 101 of the lifter 100 has a cylinder 167 fixed to a lifter frame 165, a piston rod 172 that reciprocates within the cylinder 167, and a fork-like arm 171 fixed to the piston rod 172.

At the tip of the fork-like arm 171 of this push-pull-out arm 101, that is, the tip on the processing machine 1.2.3 side, there is a ball (P).
Actuating pins 170 that engage with the recesses 33 are formed on both sides.

This intermediate transfer device 7 is constructed as described above and operates as follows. In the intermediate transfer device 7, the reciprocating movement of the cart 163 on the slide rail 161 is performed by a cylinder 159, the vertical movement of the lifter 100 is performed by a cylinder 166, and the forward and backward movement of the push-pull arm 101 is performed by a cylinder 167. However, each drive is interlocked.

First, the cylinder 159 is actuated to move the truck 163 toward the stacker crane 6 side, that is, toward the travel path 5 side. A stacker crane 6 carrying a predetermined pallet P stops on the side facing the intermediate transfer device 7. By the operation of the fork device 50 of the stacker crane 6, the tip fork 60 of the fork device 50 extends onto the intermediate transfer device W7, and the barent P placed on the tip fork 60 is transferred to the intermediate transfer device 7.
The barrel P is placed so that the recess 32 of the barrel P is engaged with the locking pin 168 provided at the upper end of the frame 164 of the trolley 163.

Next, the cylinder 166 of the lifter 100 of the intermediate transfer device 7 is activated, and the lifter frame 165 is raised.
An operating pin 170 formed on the push-pull arm 101 provided on the lifter 100 engages with a recess 33 provided on the pallet P. Furthermore, as the lifter 100 rises,
The locking pin 16B provided at the upper end of the frame 164 separates from the recess 32 of the barrel P. Therefore, the baren) P is placed on the push/pull arm 101 with the operating pin 170 and the recess 33 engaged, and in this state, the cylinder 167 is activated and the push/pull arm 101 is moved to the processing machine 1. 2
．． Move forward to the third side. As the push-pull arm 101 moves forward, the pallet P is carried into the pallet support member on the processing table 75 of the processing machine 1, 2.3. The lifter 100 is slightly lowered by the operation of the cylinder 166, and the operating pin 170 provided on the push-pull arm 101 is inserted into the recess 33 of the pallet P.
depart from. Here, the cylinder 167 is actuated to retract the push-pull arm 101 toward the intermediate transfer device 7 and move it backward. The trolley 163 in the intermediate transfer device 7 waits on the processing machine 1°2.3 side until the processing machine 1.2.3 finishes electrical discharge machining on the workpiece W.

Next, when the electrical discharge machining on the workpiece W is completed in the processing machines 1, 2.3, a slide cover 80, which is an opening/closing door of the EDM, receives a signal indicating the completion of the machining from the controller.
After the opening/closing yfi 80D is completely opened, the cylinder 167 of the push-pull-out arm 101 is activated, and the push-pull-out arm 10
1 moves forward to the processing machine 1, 2° and 3 side. Push-pull arm 1
01 is inserted below the pallet P, the lifter 10
The cylinder 166 of No. 0 operates to raise the push-pull arm 101 mounted on the lifter 100. The operating pin 170 of the push-pull-out arm 101 engages with the recess 33 of the pallet P, and the pallet P becomes mounted on the push-pull-out arm 101. Here, the cylinder 167 is actuated and the push/pull arm 101 is retracted toward the intermediate transfer device 7 and retreated. When the push-in arm 101 reaches a predetermined position l of the truck frame 164 of the intermediate transfer device 7, the cylinder 166 is activated and the lifter 100 is lowered. As the lifter 100 is lowered, the push-pull arm 101 is lowered, and the barrel l-P mounted on the push-pull arm 101 is lowered, and the locking pin 168 provided on the trolley frame 164 engages with the recess 32 of the pallet P. P is placed on the trolley frame 164, and the operating pin 170 of the push-pull arm 101 is removed from the recess 33 of the baren P.

The push-in and pull-out arm 101 further descends to become the push-in and pull-out arm 1.
01 stops at a predetermined lower position of the truck frame 164.

Furthermore, the cylinder 159 is operated and the truck 163 is moved to the rail 1.
61 to the stand cuff lane 6 side. The fork device 50 of the stacker crane 6 operates and the tip fork 6
0 begins to extend, and the tip fork 60 is positioned below the pallet P. As the tip fork 60 rises slightly, the tip fork 60 lifts the pallet P, and the locking pin 67A provided on the tip fork 60 engages the recess 3 of the pallet P.
1, and the lower surface of the baren) P is connected to the support pin 67.
The locking pin 168 of the truck frame 164 is disengaged from the recess 32 of the pallet P.

The fork device 50 is operated and the tip fork 60 is retracted to move the pallet P onto the stacker crane 6.

Further, the FMS in this group of processing machines is bottom-bottomed as described above, and the fluid circuits for operating each cylinder in this FMS are bottom-bottomed as follows, for example.

To explain an example of each cylinder of the wire electrical discharge machine 1 and the intermediate transfer device 7, on the wire electrical discharge machine 1 side, fluid from a fluid pressure supply source such as a pump is supplied to a fluid pressure adjusting device, a fluid switching valve, etc. through each cylinder 78
Fluid pressure is supplied to C, 86, 88, and 92 (the cylinder 92 of the slide cover 80 may be an air cylinder). Regarding the intermediate transfer device 7 side, fluid from a fluid pressure supply source such as a pump is supplied to each cylinder 159, 166, 16 through a fluid pressure regulator, fluid switching valve, etc.
7 is supplied with fluid pressure. Fluid is supplied to each cylinder, and the piston within each cylinder reciprocates, whereby the operating state of each cylinder is detected by each sensor.

The detection signals detected by each sensor are input to the controller, and the controller responds to each detection signal and issues a command according to the operation process that has been input in advance as a sequence to the wire electrical discharge machine 1 and the intermediate transfer device. 7 is operated, the pallet 7) 10 is carried out to the wire electrical discharge machine 1, and also to the intermediate transfer device 7.

An example of the fluid circuit for the wire electrical discharge machine 1 and the intermediate transfer device 7 has been described above. A similar fluid circuit can be applied to No. 12 as well.

In addition, in the flexible manufacturing system in this processing machine group, it is of course possible to provide a reference surface cleaning device for cleaning the reference surfaces of the reference members of each processing table and the reference surface of the pallet P. If the reference surface cleaning device is provided, the reference surface of each of the processing tables on which the pallet P is set, and the reference surface of the baren) P can be cleaned every time the pallet is set or at every predetermined period, and the pallet P can be cleaned accurately and reliably at all times. It can be set on each of the processing tables, and the accuracy of processing the workpiece can be improved.

〔Effect of the invention〕

Since the work piece removing device for a wire electric discharge machine according to the present invention is configured as described above, it has the following effects. That is, this workpiece removal device for a wire electrical discharge machine includes a first ball screw rod that is vertically movably and rotatably supported by an upper mounting member and a lower mounting member that are attached to the head body of the wire electrical discharge machine; A ball screw formed on the first ball screw rod, a nut screwed onto the ball screw, a first servo motor that operates the ball screw and the nut to rotate and vertically move the first ball screw rod; a second servo motor, a holder attached to the lower end of the first ball screw rod, a second ball screw rod supported by the holder so as to be slidable and rotatable in the axial direction;
a third servo motor attached to the holder that rotates a nut screwed onto a ball screw formed on the second ball screw rod to slide the second ball screw rod in the axial direction; and a wire electric discharge machine. Since it has a magnet attached to the holder that attracts the generated workpiece, when machining a predetermined shape on the workpiece using a wire electric discharge machine, the workpiece that is cut off from the workpiece can be smoothly removed and the wire electrode It is possible to prevent cutting at an unexpected location, and also to prevent the machined surface of the workpiece from being scratched or damaged by the machined pieces.

That is, according to this work piece removing device, the first servo motor and the second servo motor operate the ball screw formed on the first pole screw rod and the nut screwed into the ball screw. Rotation and/or vertical movement can be imparted to the ball screw rod. Further, the second ball screw rod is horizontally moved by the operation of a third servo motor that acts on the ball screw and nut of the second ball screw rod, which is slidably attached perpendicularly to the lower end of the first ball screw rod. It can be moved back and forth in the direction. Therefore, the tip end of the second ball screw rod can move extremely smoothly and accurately in a three-dimensional space by the operation of each of the servo motors. Therefore, if a magnet holder is attached to the tip of the second ball screw rod, and a magnet such as a 1 m stone is attached replaceably to the magnet holder,
Immediately before the workpiece is separated from the workpiece by machining with a wire electric discharge machine, the workpiece can be brought into precise contact with the workpiece, and the magnet can attract the workpiece and automatically and accurately separate the workpiece from the workpiece. can be removed unattended.

In addition, the machined piece removing device for this wire electrical discharge machine is equipped with a wide variety of processing machines, a storage space equipped with multiple shelves for storing pallets, a processing station for applying anti-corrosion treatment to the workpieces, and a A pallet with a workpiece set thereon is delivered to each of the processing machines while maintaining the positioning state by a pallet transport device that reciprocates between pallet loading and unloading stasogons, and the workpieces on the pallet are automatically transferred to each of the processing machines. This is applied to a wire electrical discharge machine of a flexible manufacturing system that performs electrical discharge machining.

In particular, the machined piece removal device of this wire electrical discharge machine can be used for various processing machines (hereinafter referred to as EDM A stacker crane that reciprocates along a pallet traveling system between a group of processing machines installed with a large number of processing machines and a stocking location such as a rack, and a stacker crane that moves reciprocatingly between the stacker crane and the group of processing machines and stores the pallets. Using a pallet transport/unloading device such as an intermediate transfer device, the pallet on which the workpiece is installed is automatically carried out to the processing machine, completely automating various types of processing on the workpiece, regardless of day or night. It is preferable to apply it to a flexible manufacturing system that can continuously perform various types of processing on a workpiece unmanned.

An object of the present invention is to provide a work piece removal device for a machine.

In other words, this workpiece removal device can not only automatically and reliably remove the workpiece from the workpiece, but also remove the workpiece accurately, quickly, and unattended immediately before the workpiece is separated from the workpiece. A magnet that attracts the workpiece is brought into contact with the workpiece, and the workpiece is automatically and unmanned moved from the wire electrical discharge machine to the workpiece storage location. It is possible to carry out a series of work processes automatically and unattended, including carrying out the workpiece from the wire electrical discharge machine, setting the pallet to the wire electrical discharge machine, machining the workpiece, removing the work piece, and carrying it out. The processing machine can be operated day and night.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view showing an embodiment of an FMS into which a workpiece removing device for a wire electric discharge machine according to the present invention can be incorporated, Fig. 2 is a schematic front view of Fig. 1, and Fig. 3 is a schematic front view of the FMS. A schematic plan view showing another embodiment of the FMSO in which the workpiece removal device of the wire electric discharge machine according to the invention can be incorporated, FIG. 4 is an embodiment of the workpiece removal device installed in the wire electric discharge machine according to the invention Schematic front view showing an example, No. 5
The figure is a side view of Fig. 4, Fig. 6 is a plan view showing an example of a pallet that can be commonly used in FMS, Fig. 7 is a sectional view taken along line V-■ in Fig. 4, and Fig. 8 is a A sectional view taken along the line ■-■ in the figure, FIG. 9 is a plan view showing an example of a setup indexing device that can be used for FMS, FIG. 10 is a front view of FIG. 9,
Fig. 11 is a front end side view of Fig. 9, Fig. 12 is a schematic front view showing the entire structure of this stacker crane, and Fig. 13 is a front end side view of Fig. 9.
Fig. 2 is a side view, Fig. 14 is a perspective view showing the outline of the stacker crane, Fig. 15 is a perspective view showing the outline of the fork base mounted on the stacker crane, and Fig. 16 is a front view showing the lower part of the stacker crane. , Fig. 17 is a front view showing the upper part of the stacker crane, Fig. 18 is a sectional view showing the transmission mechanism of the fork device of the stacker crane, Fig. 19 is a front view of the fork device, and Fig. 20 is the fork device extended. Fig. 21 is an explanatory drawing showing the state in which the fork device is contracted, Fig. 22 is a front view of the rust prevention treatment device that can be used for this FMS, Fig. 23 is a side view of Fig. 22, and Fig. 23 is a side view of Fig. 22. Fig. 24 is a side view of the processing table of the wire electric discharge machine, Fig. 25 is a front view of Fig. 24, Fig. 26 is a plan view of the processing table of the wire electric discharge machine, and Fig. 27 is Fig. 26. FIG. 28 is a side view of the working table of the wire electric discharge machine, FIG. 29 is a partial sectional view of the clamping device, and FIG.
Fig. 0 is a perspective view of the processing tank cover device, Fig. 31 is a sectional view of Fig. 30, Fig. 32 is a plan view of the processing tank cover device, and Fig. 3
Fig. 3 is a side view of the 32nd, Fig. 34 is a plan view showing the fine electric discharge machine and the pipe electrode exchange device, Fig. 35 is a side view of the pipe electrode exchange device, and Fig. 36 is a line 1X in Fig. 34. -11
[A sectional view at X, FIG. 37 is a plan view of the index table, FIG. 38 is a sectional view taken along line B-B in FIG.
Fig. 40 is a front view of Fig. 39, Fig. 41 is a side view of the processing table part of the die-sinking electrical discharge machine, Fig. 42 is a plan view of the machining tank device, Fig. 43 is a plan view of Fig. 42, Fig. 44 is a sectional view showing a part of the wall of the processing tank in Fig. 42, and Fig. 45 is a sectional view showing a part of the wall of the processing tank in Fig. 42.
Explanatory diagram showing part of the mechanism of the opening/closing door of the processing tank shown in Fig. 46.
47 is a side view of FIG. 46, FIG. 48 is a front view of the upper part of the intermediate transfer device, FIG. 49 is a plan view of FIG. 48, and FIG. The figure is a side view of Fig. 48, Fig. 51 is a front view of the lower part of the intermediate transfer device, Fig. 52 is a plan view of Fig. 51, and Fig. 53 is an example of the process from planning schedule to setup schedule creation in this FMS. 54 is a block diagram showing an example of setup work in this FMS,
Fig. 55 is a block diagram showing an example of machining with a fine electric discharge machine in this FMS, Fig. 56 is a block diagram showing an example of machining with a wire electric discharge machine in this FMS, and Fig. 57 is a block diagram showing an example of machining with a wire electric discharge machine in this FMS. It is a block diagram showing an example of machining of a carving electric discharge machine. 1--Wire electrical discharge machine, L H-----head main body, 2--Single hole electrical discharge machine, 3-----One die engraving electrical discharge machine, 4...-1 ---Rack, 5-----
1 running passage, 6-------Statuka crane, 7--
--- Intermediate delivery device, 9-------- Setup indexing device, 10-- Rust prevention treatment device, 12 Fluid spraying device, 19--Shelf, 20-- --One opening,
53-----Nut rotation support holder, 74--
-Jig base (table), 75- - Processing table, 130 Workpiece removal device, 131 - - Upper mounting member, 132 - - Lower mounting member, 135
, 139------Ball rod, 136, 1
37, 153--- Servo motor, 140・-
...Electromagnetic holder, 143.15o---Ball screw, 149---Nut 145.146------
・-Gear, P---------Pallet, w---------
One workpiece, W E------Wire electrode, P E-
-----Pipe electrode, RE die-carved electrode. 9. Engineer 10. Figure 1 222= 1. Figure 1. Force 20. Figure 1. Figure 22. Figure 3. Figure 29. Figure 44. Figure 5. Figure 53. Drawing setup work. 4. Figure 5. Figure 6. figure

Claims (3)

[Claims] (1) A first ball screw rod that is vertically movably and rotatably supported by an upper mounting member and a lower mounting member attached to the head body of a wire electrical discharge machine, a ball screw formed on the first ball screw rod; a nut screwed onto the ball screw; a first servo motor and a second servo motor that actuate the ball screw and the nut to rotate and vertically move the first ball screw rod; a holder attached to the lower end; a second ball screw rod axially slidably and rotatably supported by the holder;
a third servo motor attached to the holder that rotates a nut screwed onto a ball screw formed on the second ball screw rod to slide the second ball screw rod in the axial direction; and a wire electric discharge machine. A workpiece removal device for a wire electrical discharge machine, comprising a magnet attached to the holder that attracts generated workpieces. (2) an upper mounting member and a lower mounting member attached to the head body of a wire electrical discharge machine; a first ball screw rod supported by each mounting member so as to be movable up and down and rotatable;
a first servo motor attached to the lower mounting member that rotates a nut screwed onto a ball screw formed on the ball screw rod to move the first ball screw rod up and down; a drive shaft rotatable on the lower mounting member; a second servo motor supported by the second servo motor; a gear that is slidable in the axial direction and fixed in the rotational direction with respect to the first ball screw rod that is rotated by the drive shaft of the second servo motor; 1 a holder attached to the lower end of a ball screw rod; a second ball screw rod axially slidably and rotatably supported by the holder; and a holder screwed onto the ball screw formed on the second ball screw rod. a third servo motor attached to the holder that rotates the nut and slides the second ball screw rod in the axial direction; and a magnet attached to the holder that attracts workpieces generated by the wire electric discharge machine. A machined piece removing device for a wire electrical discharge machine. (3) A large number of processing machines, a rack with multiple shelves for storing pallets, a processing station where workpieces are treated to prevent rust, and a pallet transport device that moves back and forth between pallet loading/unloading stations. A wire electrical discharge machine of a flexible manufacturing system, in which a pallet with workpieces set is delivered to each of the processing machines while maintaining a positioning state, and the workpieces on the pallet are automatically electrical discharge machined by each of the processing machines. A workpiece removing device for a wire electrical discharge machine according to claim 1 or 2, wherein the device is applied to a wire electric discharge machine.