JP3612169B2 - Processing system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a processing system that transports a plurality of pallets to which a workpiece is attached to a processing unit while processing the pallets. More specifically, the present invention relates to a machining system that sequentially carries a plurality of pallets into a machining unit in accordance with a preset machining priority order and machines a workpiece at the machining unit.
[0002]
[Background]
A plurality of pallets are set in advance, including a processing unit and a pallet magazine that transports a plurality of pallets to which the workpieces are attached to the processing unit while conveying the workpieces processed by the processing unit together with the pallets. 2. Description of the Related Art Processing systems are known that carry in a processing unit according to processing priority and process a workpiece at the processing unit.
[0003]
Conventionally, in this type of machining system, one workpiece is attached to one pallet, and two machining programs can be stored so that this workpiece can be machined in a maximum of two processes. In other words, each pallet is provided with a table that can store up to two machining programs. When any workpiece is loaded into the machining section, the machining program corresponding to the pallet to which the workpiece is attached is read from the table. The workpiece was machined according to the machining program.
[0004]
[Problems to be solved by the invention]
However, in the conventional machining system, since one work is one pallet, the pallet must be carried into and out of the work part for each work, and the work efficiency is poor. For example, in order to machine a plurality of workpieces, the pallet must be carried in and out a plurality of times, so that the machining efficiency is poor.
[0005]
Therefore, if a plurality of workpieces are attached to one pallet via a workpiece attachment jig and each workpiece can be machined, the number of pallet loading and unloading operations can be reduced, and machining efficiency can be improved.
For this purpose, a table having a plurality of storage areas for storing a plurality of machining programs for machining a plurality of workpieces may be provided for each pallet. However, with this configuration for all pallets, if one workpiece is to be attached to a pallet and processed, the program registration work is more complicated and cumbersome than conventional processing with one pallet and one workpiece. As a result, the burden on the operator is increased.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to solve such conventional drawbacks, and provides a machining system that can switch between one-pallet one-work processing and one-pallet multiple-work processing by a simple operation. It is in.
[0007]
[Means for Solving the Problems]
The processing system of the present invention includes a processing unit, a pallet magazine that transports a plurality of pallets to which the workpiece is attached to the processing unit, and unloads the workpiece processed by the processing unit together with the pallet. A pallet schedule capable of storing at least one machining program and machining priority for each pallet in a machining system for loading a plurality of pallets into a machining unit according to a preset machining priority and machining a workpiece in the machining unit. A table, a multi-surface processing schedule table capable of storing a plurality of processing programs corresponding to a plurality of processing surfaces switched according to the indexing angle in the processing unit, and execution and multi-surface processing of the pallet schedule table Select to execute schedule table And when the execution of the pallet schedule table is selected by the selection means when one of the pallets is loaded into the processing unit according to the processing priority in the pallet schedule table, the pallet schedule table corresponds to the loaded pallet. A machining program is read from the pallet schedule table and executed, and when the execution of the multi-face machining schedule table is selected by the selection means, a machining program corresponding to the loaded pallet is stored in the multi-face machining schedule table. And a control means for reading and executing in order.
[0008]
According to such a processing system, according to the processing priority of the pallet schedule table, when any pallet is carried into the processing unit, what is selected by the selection means is execution of the pallet schedule table, It is checked whether the multi-surface machining schedule table is executed.
Here, if execution of the pallet schedule table is selected, the machining program corresponding to the loaded pallet is read from the pallet schedule table and executed.
If execution of the multi-surface machining schedule table is selected, the machining program corresponding to the loaded pallet is sequentially read from the multi-surface machining schedule table and executed.
Therefore, since one pallet one work process and one pallet multiple work process can be switched and executed, an efficient machining system can be realized by switching according to the machining mode.
[0009]
In the above configuration, the pallet schedule table preferably has a storage area capable of storing two machining programs for each pallet. In this way, even if one work is attached to one pallet, two processes can be performed on one work.
The multi-surface machining schedule table preferably has a storage area that can store two machining programs for each surface corresponding to four machining surfaces. In this way, these workpieces can be machined with a maximum of 8 workpieces attached to one pallet.
In addition, the selection unit may select by performing in advance whether to perform pallet schedule processing or multi-surface processing schedule processing corresponding to the pallet, but a manual operation switch in the vicinity of the processing unit For example, when the manual operation switch is pressed, the multi-surface machining schedule processing may be performed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing the overall configuration of the processing system of this embodiment. The machining system transports a machining unit 11 such as a machining center and a plurality of pallets PA01 to PAn to which the workpiece is attached to the machining unit 11 while conveying the workpiece processed by the machining unit 11 to a pallet PA (PA01). To PAn), a pallet magazine 21 to be carried out, a processing unit control device 31 for controlling the driving of the processing unit 11, and a pallet magazine control device 41 for controlling the driving of the pallet magazine 21.
[0011]
Here, on the upper surface of the pallet PA (PA01 to PAn), as shown in FIG. 2 and FIG. One workpiece W0 or a maximum of eight workpieces W1 to W8 can be mounted on the workpiece mounting jig 1. That is, in the case of the pallet schedule process, as shown in FIG. 2, one work W0 is attached to the first machining surface F1 of the work attachment jig 1. In the case of multi-surface machining schedule processing, as shown in FIG. 3, a maximum of two workpieces W1 to W8 are attached to each of the first to fourth machining surfaces F1 to F4 different by 90 degrees of the workpiece attachment jig 1. .
[0012]
The processing unit 11 includes a table 12 on which the pallet PA loaded from the pallet magazine 21 is placed, and a processing head 13 that processes the workpiece W on the pallet PA placed on the table 12. The table 12 is movable in the vertical and horizontal directions (X and Y axis directions) in FIG. 1, and is rotatable about an axis in a direction (Z axis direction) perpendicular to the paper surface of FIG. . Further, the machining head 13 is movable in the Z-axis direction. Thereby, it can process about the four process surfaces F1-F4 of the workpiece | work attachment jig | tool 1. FIG.
[0013]
The pallet magazine 21 includes a plurality of stations ST01 to ST08 and a transport unit 22 for sequentially transporting the plurality of pallets PA01 to PAn to the stations ST01 to ST08. The station ST06 corresponds to the setup station STDD for attaching and detaching the workpiece, and the station ST08 corresponds to the table 12 of the processing unit 11 constituting the processing station STMC. In addition, loaders 23 and 24 for carrying in and out the workpiece W are provided between them.
[0014]
As shown in FIG. 4, the processing unit control device 31 includes a control unit 32 as a control unit. A display 33, an operation panel 34, the processing unit 11, and a storage unit 36 are connected to the control unit 32. Has been. On the operation panel 34, a key group (not shown) for inputting pallet schedule data and the like is arranged. The storage unit 36 is provided with a pallet schedule table 37 in addition to various data.
[0015]
As shown in FIG. 4, the pallet magazine control device 41 includes a control unit 42 as control means. The control unit 42 includes a display 43, an operation panel 44, and a pallet magazine for driving the pallet magazine 21. A drive unit 45 and a storage unit 46 are connected to each other. In addition to a group of keys (not shown) for inputting multi-surface machining schedule data and the like, a multi-surface machining selection switch 47 as a selection means (manual operation switch) is arranged on the operation panel 44. The storage unit 46 is provided with multi-surface processing schedule tables 48a, 48b, 48c... 48n for each of the pallets PA01 to PAn.
[0016]
As shown in FIG. 5, the pallet schedule table 37 includes a storage area E1 for updating and storing a pallet No. in each station STMC, STDD, ST01 to ST08. Corresponding to the storage area E1, storage areas E2, E3 for storing schedule data (processing priority data), state data (data indicating the current situation), and programs used in the first and second steps. E4 and E5 are provided, respectively.
[0017]
As shown in FIG. 6, the multi-surface processing schedule tables 48a, 48b, 48c,..., 48n are determined for each processing surface F1 to F4, that is, depending on the index angle (0, 90, 180, 270 degrees) of the processing portion 11. For each of the four machining surfaces F1 to F4 to be switched, there are a storage area E11 for storing a machining program for performing a maximum of two machining A and B, and a storage area E12 for storing status data (data representing the current situation). Is provided.
[0018]
Next, the operation of this embodiment will be described with reference to the flowchart of FIG.
First, in the processing unit control device 31, pallet schedule data is input from the operation panel 34, and a pallet schedule table 37 is created (see FIG. 5). Further, in the pallet magazine control device 41, multi-surface machining schedule data is input from the operation panel 44, and multi-surface machining schedule tables 48a, 48b, 48c,... 48n are created (see FIG. 6).
[0019]
In processing, the processing proceeds according to the schedule (processing priority) set in the pallet schedule table 37. When a pallet exchange command is issued from the processing unit control device 31 at the stage of processing, processing is performed according to the flowchart shown in FIG.
First, the processed pallet processed by the processing unit 11 is carried out to the pallet magazine 21 by the loader 24, and then the next processing pallet to be processed next is transferred to the processing unit 11 and then whether or not multi-face processing is performed. To check. That is, it is checked whether or not the multi-surface machining selection switch 47 is pressed.
[0020]
If the multi-surface processing selection switch 47 is not pressed, pallet schedule processing is performed. That is, a machining program corresponding to the loaded pallet is read from the pallet schedule table 37 and the workpiece is machined according to the machining program.
[0021]
On the other hand, if the multi-surface machining selection switch 47 is pressed, multi-surface machining schedule processing is performed. First, after selecting the multi-surface machining schedule tables 48a, 48b, 48c... 48n corresponding to the loaded pallet, the selected multi-surface machining schedule tables 48a, 48b, 48c.
[0022]
For this, first, it is checked whether or not a program for performing the first machining A of the machining surface F1 is registered in the storage area E11 of the multi-face machining schedule table 48. If the corresponding program is registered, next, it is checked whether or not machining abnormality has been detected (inspect for abnormalities in tools used in the program, such as breakage or wear life). If there is no machining abnormality, a program for performing the first machining A on the machining surface F1 is executed. Then, on the condition that the first machining A of the machining surface F1 is completed by the program, it is next checked whether or not a program for performing the second machining B of the machining surface F1 is registered in the storage area E11. Proceed to processing.
[0023]
In addition, when the program which performs the 1st process A of the process surface F1 in the storage area E11 is not registered, and when process abnormality is detected, the 2nd process B of the process surface F1 is performed to the storage area E11. Skip to the process of checking whether the program is registered.
[0024]
In this way, the second processing B of the processing surface F1, the first processing A of the processing surface F2, the second processing B of the processing surface F2, the first processing A of the processing surface F3, the second processing B of the processing surface F3, After the processing is continued in order for the first processing A on the processing surface F4 and the second processing B on the processing surface F4, the processing returns to the first processed pallet unloading processing.
[0025]
Therefore, according to the present embodiment, the pallet schedule processing and the multi-surface processing schedule processing are switched depending on whether or not the multi-surface processing selection switch 47 is operated. Since one pallet multiple workpiece processing can be switched and executed, an efficient machining system can be realized. That is, it is possible to eliminate defects (decrease in machining efficiency) when configured with only one pallet and one workpiece process, and also eliminate defects (complexity of registration work) when configured with only one pallet multiple workpiece process.
[0026]
Further, in the pallet schedule process, since two workpieces can be processed for one workpiece W0 attached to one pallet PA, more complicated processing can be performed. In addition, since processing is performed according to the schedule (processing priority) set in the pallet schedule processing, including those for multi-surface processing schedule processing, the pallet schedule processing and multi-surface processing schedule processing are scheduled separately (processing priority) ) Is efficient because it is not necessary to set.
[0027]
In the multi-surface machining schedule processing, a maximum of two machining programs can be registered for each of the four machining surfaces F1, F2, F3, and F4. Therefore, a maximum of eight workpieces can be attached to one pallet and processed sequentially. it can. Therefore, in this case, the number of times the pallet is carried into and out of the processing unit 11 can be reduced.
[0028]
Further, even if the pallet PA attached with one workpiece W0 and the pallet PA attached with a plurality of workpieces W1 to W8 are conveyed in a mixed manner, the pallet PA attached with the plurality of workpieces W1 to W8 is carried into the processing unit 11. Specifically, when the multi-surface machining selection switch 47 is pressed when the pallet PA having one machining priority is machined by the machining unit 11, the pallet with a plurality of workpieces W1 to W8 attached thereto. For PA, multi-surface processing schedule processing can be executed.
[0029]
In the above embodiment, a maximum of two programs can be stored in the pallet schedule table 37 corresponding to each pallet PA. However, it is sufficient that at least one machining program can be registered.
In the multi-surface machining schedule tables 48a, 48b, 48c,... 48n, a maximum of two machining programs can be registered on each surface corresponding to the four machining surfaces F1, F2, F3, F4. It suffices to have the above processed surfaces, and one program or three or more programs may be registered on each surface.
[0030]
Further, the selection means is not limited to the multi-surface machining selection switch 47 described in the above embodiment, and may have other configurations. For example, the selection may be made by setting in advance whether the pallet schedule process or the multi-face machining process is performed corresponding to the pallet.
[0031]
【The invention's effect】
According to the machining system of the present invention, since one pallet one work process and one pallet multiple work process can be switched and executed according to the machining mode, an efficient machining system can be realized.
[Brief description of the drawings]
FIG. 1 is a plan view showing an overall configuration of an embodiment of the present invention.
FIG. 2 is a perspective view showing a state in which a workpiece is attached to the pallet via a jig in the embodiment.
FIG. 3 is a perspective view showing a state in which a plurality of workpieces are attached to the pallet via a jig in the embodiment.
FIG. 4 is a block diagram of the same embodiment.
FIG. 5 is a diagram showing a pallet schedule table according to the embodiment.
FIG. 6 is a diagram showing a multi-face machining schedule table according to the embodiment.
FIG. 7 is a flowchart for explaining the operation of the embodiment;
[Explanation of symbols]
11 Processing Unit 21 Pallet Magazine 32, 42 Control Unit (Control Unit)
37 Pallet schedule table 47 Multi-surface processing selection switch (selection means)
48a, 48b, 48c ... 48n Multi-surface machining schedule table PA, PA01 to PA08 Pallet W, W0 to W08 Workpieces F1 to F4 Machining surfaces E1 to E5, E11, E12 Storage area

Claims (4)

A plurality of pallets are set in advance, including a processing unit and a pallet magazine that conveys a plurality of pallets with workpieces to the processing unit while conveying the workpieces and carries the workpieces processed by the processing unit together with the pallets. In the processing system that carries in the processing unit according to the processing priority and processes the workpiece in the processing unit,
A pallet schedule table capable of storing at least one machining program and machining priority for each pallet;
For each of the pallets, a multi-face machining schedule table capable of storing a plurality of machining programs corresponding to a plurality of machining faces switched according to an index angle in the machining section;
A selection means for selecting one of the execution of the pallet schedule table and the execution of the multi-face machining schedule table;
According to the processing priority of the pallet schedule table, when any pallet is loaded into the processing unit, when the execution of the pallet schedule table is selected by the selection means, a processing program corresponding to the loaded pallet is Read and execute from the pallet schedule table, and when the execution of the multi-surface machining schedule table is selected by the selection means, the machining program corresponding to the loaded pallet is sequentially read from the multi-surface processing schedule table. And a control means for executing the processing. 2. The machining system according to claim 1, wherein the pallet schedule table has a storage area capable of storing two machining programs for each pallet. 3. The machining system according to claim 1, wherein the multi-surface machining schedule table has a storage area capable of storing machining programs for two surfaces corresponding to four machining surfaces. Processing system. The processing system according to claim 1, wherein the selection unit is configured by a manual operation switch.

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