JPH07112222A - Method for controlling punch press with tapping device - Google Patents

Abstract

PURPOSE:To make the designation of the coordinate of a tapping place unnecessary, to shorten a working program, and to eliminate the program mistake of the coordinates for tapping. CONSTITUTION:In this control method, the designation part 18a of a punching program 18, is allowed to hold in a memory means 23, paralleling to the execution of the punching program 18, that is, a punching work. The designation is executed by a holding start command 27 and a holding completion command 28. At the time of a tapping work, a holding program 24 is read out, a tapping tool 15 corresponding to a punching tool in a tool command 30, is slected from a punch, tap corresponding table 25, and a tapping work is successively performed to each punch coordinate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for a punch press with a tap device, which continuously performs tap processing after punch processing.

[0002]

2. Description of the Related Art Conventionally, there is a punch press equipped with a tap device. In this kind of punch press machine,
After punching the pilot hole, tapping is performed on the pilot hole. Punching and tapping plate feeding are performed on the same table. When tapping is performed in this way, the tapping program 52 is described after the punching program 51 in the machining program, as shown in FIG. 6, for example. In each feed command 54 for tapping, the same coordinates as the feed command 53 for punching for the pilot hole are described, and the control device is made to perform offset correction between the punch position and the tap position.

[0003]

However, as described above, in addition to the punching program 51, the tapping program 5 is separately provided.
Since 2 is described, the entire program length of the machining program 50 becomes long, and the storage capacity of the storage device increases accordingly. Further, the punch feed command 53 and the tap feed command 5
Although the same coordinates are described in 4, the different coordinates may be described due to a program mistake.

An object of the present invention is to provide a method of controlling a punch press with a tap device, which does not require the coordinate designation of the tap machining location, can shorten the machining program, and can eliminate programming errors.

[0005]

The structure of the present invention will be described with reference to FIG. 1 corresponding to an embodiment. In the control method of the punch press with the tap device, the punch processing program (1
In parallel with the execution of 8), that is, punching, the designated portion (18a) of the punching program (18) is stored in the storage means (23). At the time of tapping, the contents of the program (24) stored as described above are read out and the tap tool (15) corresponding to the punch tool in the tool command (30) is read from the punch / tap correspondence table (25) prepared in advance. Select and sequentially tap at punch coordinate positions.

[0006]

According to this control method, since the tapping is performed by using the feed command (31) and the tool command (30) of the punching program (18), a tapping-dedicated machining program is unnecessary and the program length is reduced. It gets shorter. Also,
Program errors due to coordinate mismatch between punching and tapping are eliminated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a plan view of a punch press with a tap device to which this control method is applied. The upper and lower turrets 3 are installed on the frame 1, a punch drive mechanism (not shown) for moving the punch tool of the upper turret 3 up and down at the punch position P is provided in the frame 1, and the tap device 2 is provided on the side of the punch position P. Is provided.

A table 4 which constitutes a feeding device 5 for the plate material W.
Comprises a fixed table 4a in the center and slide tables 4b on both sides, and the slide table 4b is a carriage 9
At the same time, it is driven back and forth (Y-axis direction) on the rail 11 of the bed 10. The carriage 9 has a horizontal direction (X-axis direction)
A cross slide 12 is provided so as to be capable of being fed to the cross slide 12, and a work holder 13 for holding the plate material W is attached to the cross slide 12. The cross slide 12 and the carriage 9 are driven back and forth by a servo motor (not shown) via ball screws.

As shown in FIG. 1, the tap device 2 is provided with a tool base 14 on which a plurality of tap tools 15 are mounted so that it can be indexed and rotated about a vertical axis 16 to rotate the tap tools 15 at a predetermined tap position Ta. Meanwhile, a tap drive device (not shown) for raising and lowering is provided.

FIG. 1 is a block diagram showing a conceptual configuration of a control system. The controller 17 is means for controlling the entire punch press, and executes the punch processing program 18 N
It consists of a C device and a programmable machine controller. The control device 17 includes an arithmetic control unit 19 including a CPU and a memory device, and a RAM (RAM) that holds a program portion 18a extracted from the machining program 18.
The punch / tap correspondence table 25 and the tap size / tool correspondence table 26 are provided in the parameter setting storage means (eg, static ram).

The arithmetic control unit 17 includes an execution unit 20 and a holding unit 21 each of which is composed of a predetermined control program or the like.
And a tap processing conversion means 22 are provided. The executing unit 20 is a unit that executes the machining program 18 and the holding program 24 that are NC codes and outputs the punching command a and the tapping command b. Holding means 2
1 is this program 1 when the machining program 18 is executed.
This is a means for storing the designated portion of No. 8 in the storage means 23.
The tap machining conversion means 22 is a means for converting the data stored in the tables 25 and 26 into a tap machining command when the holding program 24 held in the storage means 23 is executed by the execution means 20. is there.

Next, the control method will be described. In the punching program 18, before and after each program part 18a used for tapping, a tap holding start command 27 and a holding end command 28 for designating the part 18a are described, and a tapping execution command 29. Is described. As a specific example, as shown in FIG. 2, the holding start command 27 is described by “M100”, the holding end command 28 is described by “M200”, and the tapping execution command 29 is described by NC code indicated by “M300”.

During operation of the machine, the holding start command ("M100") 27 and the holding end command ("M200")
The contents of the program parts 18a, 18a, ... Enclosed by 28 are stored in the storage means 23 in parallel with the punching by the execution of the machining program 18. When each command of the punching program 18 is sequentially executed and the tapping execution command (“M300”) 29 is read by the arithmetic control unit 19, the program portion 18a held in the storage unit 23 is sequentially read and read. Tool command ("T5 (φ
3) ”) The tapping tool 15 corresponding to the punching tool designated in 30 is selected to perform tapping. That is, tapping is performed by the selected tap tool 15 at each punch coordinate included in the holding program 24.

The tap tool 15 is selected based on the setting data of the punch / tap correspondence table 25 and the tap size / tool correspondence table 26. As shown in FIG. 3, the punch / tap correspondence table 25 has a tool diameter, a tap size, a tap ascending / descending speed, and a tap rotation number set corresponding to the tool number of the punch tool. The tap size / tool correspondence table 26 is a table describing the tap size and the corresponding tap tool number as shown in FIG. The tap tool number indicates the station of the tap tool 15 in the tap device 2.

As shown in FIG. 2, when the designated tool of the punch tool command 30 is "T5", the tap size of "M3" is selected in the punch / tap correspondence table 25 of FIG.
The tap tool number "# 1" corresponding to "M3" is selected from the table 26 of FIG. Along with the selection of the tap size, the tap ascending / descending speed and the tap rotation speed when the tap tool of that size is used are also selected from the punch / tap correspondence table 25. Selection of such tap tool number, tap lifting speed, and tap rotation speed is
When the execution means 20 reads the holding program 24 of the storage means 23, the tap processing conversion means 22 performs it. The conversion means 22 also corrects the offset OFT between the punch position P and the tap position Ta.

The tap device 2 includes a tap tool 15
When a punch tool having a predetermined large diameter (tool number “15” in the example of FIG. 3) is used instead of the table, a table 25, 26 of FIGS. 3 and 4 is used.
As can be seen, the Horso is selected.

According to the control method of the punch press with the tap device, since the tap processing is performed by using the punch processing program 18 as described above, it is not necessary to describe the coordinate specification of the tap processing location and the tool specification. The length is shortened, and there are no programming mistakes when specifying tapping coordinates. Further, when the machining program 18 is maintained, the tap position is also changed by simply changing the coordinates of the punch position, and the maintenance can be performed easily.

[0018]

According to the method of controlling the punch press with the tap device of the present invention, the designated portion of the punching program is stored in the storage means at the time of punching, the stored program content is read out at the time of tapping, and the punch prepared in advance is prepared.・ Since the tap tool corresponding to the punch tool is selected from the tap correspondence table and tap processing is performed at the punch coordinate position, it is not necessary to specify the coordinates of the tap processing location or the tool specification, and the program length is shortened. Eliminates programming mistakes in coordinate specification.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a control system of a punch press with a tap device to which a control method according to an embodiment of the present invention is applied.

FIG. 2 is an explanatory diagram of an example of a punching program.

FIG. 3 is an explanatory diagram of a setting example of a punch / tap correspondence table.

FIG. 4 is an explanatory diagram of a setting example of a tap size / tool correspondence table.

FIG. 5 is a plan view of a punch press with a tap device.

FIG. 6 is an explanatory diagram of an example of a conventional punching and tapping program.

[Explanation of symbols]

2 ... Tap device, 5 ... Feed device, 15 ... Tap tool, 1
8 ... Punching program, 18a ... Program part,
21 ... Holding means, 22 ... Tap processing converting means, 23
... storage means, 24 ... holding program, 25 ... punch / tap correspondence table, 26 ... tap size / tool correspondence table, 27 ... holding start command, 28 ... holding end command, 29
… Tap processing execution command, 30… Tool command, P… Punch position

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B23Q 15/00 301 E 303 Z G05B 19/18

Claims (1)

[Claims] 1. A process of storing a designated portion of the punching program in a storage means when the punching program is executed, and the stored program contents are read out and a punch tool of a tool command is issued from a punch / tap correspondence table prepared in advance. A method of controlling a punch press with a tap device, including the step of selecting a tap tool corresponding to, and sequentially performing tap processing at each punch coordinate position.