JPH0716726B2 - Tool change instruction device for turret punch press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to a die replacement instruction device for a turret punch press.

(Prior Art) As is well known, the turret punch press has a mold station on the turret that can mount a large number of molds.
The die mounting station specified by the NC program is indexed to a predetermined machining position, and punching is sequentially performed with the indexed dies.

Therefore, in such a turret punch press, check the molds used for the NC program to be machined from the work sheet etc., and make sure that each mold is mounted at the mold mounting station specified in the NC program. The mold must be converted as appropriate.

However, in the turret punch press, the turret, which has a large number of die mounting stations, is cramped in the frame, so the turret is rotated manually while indexing the dies one by one to the check position. It takes a lot of work and time to convert a large number of molds according to the molds used, and in some cases the mold replacement time is longer than the machining time. There was also.

Therefore, for example, in JP-A-61-103629 (die management method for turret punch press), a unique number is assigned to all dies, and the die used in each die station is tracked by tracking the usage state of each die. It has been proposed to generate a mounting die list in which die numbers are associated with each other and manage the number of hits of each die.

(Problems to be Solved by the Invention) However, in the conventional mold management method as described above, it is conditioned that all molds have unique numbers. Has a problem that it cannot be applied and lacks versatility.

Therefore, it is an object of the present invention to provide a mold exchange instruction device for a turret punch press, which has high versatility and can easily, quickly, and reliably perform mold exchange.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a plurality of molds mounted on a plurality of mold mounting stations of a turret in a turret punch press. A mounting die list storage unit that stores the die shape of the shape, size, and mounting angle in association with the station number of each die mounting station; and the station number extracted from the NC program input from the NC program input unit. And a die shape stored in association with each other, a used die list storage section; a list comparison section that compares the mounted die list and the used die list stored in both the storage sections; and the list comparison section. A die replacement instruction section for instructing die replacement to each die mounting station based on the comparison result of the above; and the rice of the die replacement instruction of both the lists and the die replacement instruction section. And a mold list display section for displaying the components; updating the mounted mold list stored in the mounted mold list storage section when the mold is replaced according to the mold replacement instruction of the mold replacement instruction section. A mounting die list updating unit that performs the above; an NC program updating unit that updates the NC program based on the comparison result of the list comparing unit; and an update program storage that stores the NC program updated by this NC program updating unit Parts and ;.

(Example) Hereinafter, the Example of this invention is described.

As shown in FIG. 2, the turret punch press 1 has a so-called bridge type frame 2, and the upper and lower turrets 3 and 4 are provided in the frame 2.

The upper and lower turrets 3 and 4 are rotatable about a shaft 5 in a horizontal plane, and are provided with a large number of mold mounting stations S (IJ) as shown in an enlarged plan view of FIG. . I indicates the station number, J indicates the station characteristics such as the die size and the presence or absence of the auto index mechanism.

The molds mounted on each mold mounting station S (IJ) are
The work W indexed just below the ram 6 and guided between the turrets 3 and 4 is subjected to predetermined processing.
The work W is gripped by the clamp device 7 and guided on the table 8.

As shown in FIG. 4, the control device (NC device) for controlling the turret punch press 1 has a CPU 1 on the system bus 9.
0, ROM11, RAM1 with battery Bat power backup
2, digital input (Di) 13, digital output (Do) 14, programmable controller (PC) 15, RAM between both (DP-RAM) 16, serial interface (SI
O) 17, 18, parallel interface (PIO) 19 and so on.

Di13 and Do14 are connected with various actuators 21 and sensors 22 via a connector module 20.

The PC 15 refers to the detection number of the sensors 22 to refer to the CPU 10
Actuators under the operating system of
The control signal is output to 21. The control signal includes a signal for rotating the turrets 3 and 4.

The DP-RAM 16 is provided with an encoder E and a tacho generator TG via a positioning module 23 and a servo amplifier 24.
Attached servo motor M _S is connected. The servo motor M _S includes two-dimensional servo motors M _X and M _Y that drive the clamp device 7 in the water surface and a servo motor M _T that rotationally drives the mold in the turrets 3 and 4.

The serial interface 17 is provided with a manual data input device (MDi) 27 including a color CRT 26 and a numeric keypad for data input via the controller 25.
Are connected.

A control panel 29 for performing various operations is connected to the serial interface 18 via a controller 28.

A paper tape reader (PTR) 30 for inputting NC depth is connected to the parallel interface 19. A non-volatile memory for storing and storing the NC program in parallel with the paper tape reader 30 is appropriately connected, but not shown.

The operation of the above control device will be briefly described. In the NC program read from the PTR30 or a memory (not shown), the station number is designated and the machining to be performed by the die attached to this station. Information such as position is stored.

Therefore, the CPU 10 operates Di13, Do14, PC15, and DP-RAM16 under the operating system, rotates the turrets 3 and 4 shown in FIG. 3 to index a predetermined station (die) to the processing position, and the clamping device. The ram 6 is lowered on the work W moved to this position by 7 to perform the working operation.

FIG. 1 shows a block diagram of a mold replacement instruction device configured in the control device.

As shown in the figure, the mold replacement instruction device 31 of the present example has an NC program input unit 32, a used mold list extraction unit 33, and a used mold list storage unit 34. Also, the mounting die list storage unit
35 and a list comparison unit 36 that compares the lists stored in both list storage units 34 and 35.

An example of the lists stored in the used mold list storage unit 34 and the mounted mold list storage unit 35 is shown in FIG.

FIG. 5 shows an example in which both lists are displayed on the screen 26A of the CRT 26. The left column shows the mounting die list and the right column shows the used die list. The rightmost column and the lower column are comment columns, and the lowermost column shows soft switch functions such as setting completion, next page, and end.

In both lists, the mold shape (shape, X dimension, Y dimension) and the mounting angle are described next to the number IJ for the station number S (IJ). The used mold list indicates that a mold having a predetermined shape should be mounted at a predetermined mold mounting station S (IJ) at a predetermined angle. Also,
The mounting die list shows the actual mounting state of the die.

The list comparison unit 36 includes a mold list display unit 37 for displaying the list as described above, and a mold replacement instruction unit 38 for outputting a mold replacement command by changing the display contents of the CRT based on the comparison result. And a mold rotating unit 39 that rotates the mold appropriately for a station equipped with an auto index function,
The NC program changing unit 40 is connected. Further, the mold rotating unit 39 and the replacement result input unit 41 are connected to a mounted mold list updating unit 42 which is connected to the mounted mold list storage unit 35. The NC program updated by the NC program update unit 40 is stored and stored in the update program storage unit 43.

FIG. 6 shows a die replacement method by list comparison.

In step 601, both lists are displayed as shown in FIG. If there are too many die stations to fit on one page, the next page may be called.

At step 602, it is compared whether or not the mold used is at a predetermined station, and at step 603, a comment is displayed as shown in the rightmost column of FIG.

In this example, since a predetermined mold (long angle, X = 85.00, Y = 5.00) is not attached to the station 1D at a predetermined angle (0 °) in the used mold list. It is indicated that "replacement" is necessary because the equipment attached to the station cannot be used. In addition, in this example, although the mold having the same shape is mounted on the station 12D, the station cannot be used because the auto index mechanism is not mounted on this station.

Further, it is shown that the molds to be mounted on the stations 3A and 7A are mounted on the stations 7A and 6A. Next, it is indicated as "OK" that a predetermined mold is attached to the stations 5A and 8G. Furthermore, it is shown that the station 10B has a different angle, and the station 13A can use the mold of the station 3A, but the angle is different. Finally, regarding the station 20A, "no mold" indicating that the mold is not found in the mounted mold is displayed.

Therefore, in step 604, the process proceeds to step 605 or 606 depending on whether or not the mold needs to be rotated and whether or not to replace the mold. If automatic processing is possible, automatic processing is performed in step 605.

The case where the automatic processing is possible means that the mold can be rotated by the auto index mechanism, that the mold installed in another station can be used by changing the station number, and that the mold is rotated by combining This is the case when the mold of the station can be used.

In these cases, the mold is rotated as appropriate and the contents are stored in the mounting mold list. When changing the station number, change the station number in the mold list.
Also change the station number in the NC program. Furthermore, the comment display is also "OK".

On the other hand, when automatic processing is not possible, the station does not have an auto-indexing mechanism and the angle must be changed manually, or the mold needs to be replaced.

In this case, "replacement" and "angle change" are displayed in the comment field by red letters, blinking, and color reversal display to prompt manual operation.

In step 607, the result of die replacement or angle change is input, and in step 605 data processing is performed and the process proceeds to the next list processing. However, since the data input may be an erroneous input, the result input in step 607 indicates only the exchange end or the angle change end, and the data in the display list is exclusively used. That is, in the angle change end signal, the angle of the used mold list is transcribed to the angle of the mounted mold list. Further, at the die replacement end (set end) number, the shape data of the used die list is transcribed corresponding to the predetermined station of the mounted die list.

Refer to the comments in the column below for mold replacement or angle change work.

In step 606, the completion of all exchanges is determined by operating the soft key, and all exchanges are completed.

As described above, according to the mold replacement instruction device 31 of the present example, the fifth
With reference to the display as shown in the figure, it is sufficient to sequentially proceed with the mold replacement or the angle change by following the used mold list, and the mounted mold list is changed by the input of the conversion or change end signal.

Also, since the NC program is updated (edited) fully automatically when the station number is changed, no extra replacement work is required.

In the above procedure, when changing molds, turret 3
It is convenient to automatically rotate (4) so that the replacement station automatically comes to the mold replacement position.

The present invention is not limited to the above embodiments, but can be carried out in appropriate modes by making appropriate design changes.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention relates to a plurality of die mounting stations of the turrets 3 and 4 of the turret punch press 1. A mounting die list storage unit 35 in which the die shape of the shape, dimensions, and mounting angle and the station number of each of the die mounting stations are stored in association with each other; extracted from the NC program input from the NC program input unit 32. A used mold list storage unit 34 that stores a station number and a mold shape in association with each other; a list comparison unit that compares the mounted mold list and the used mold list stored in the storage units 34 and 35. 36; and a mold replacement instruction unit 38 that gives a mold replacement instruction to each mold mounting station based on the comparison result of the list comparison unit 36; and a mold replacement of both the lists and the mold replacement instruction unit 38. A mold list display section 37 for displaying a comment of an instruction; and the mounted mold list storage section when the mold is replaced in accordance with the mold replacement instruction of the mold replacement instruction section 38.
A mounting die list updating unit 42 for updating the mounting die list stored in 35; an NC program updating unit 40 for updating the NC program based on the comparison result of the list comparing unit 36; Updated by program update unit 40
And an update program storage unit 43 for storing the NC program.

As is apparent from the above configuration, in the present invention, the mounted die list stored in the mounted die list storage unit 35 and the used die list stored in the used die list storage unit are the list comparison unit 36. Are compared with each other, and a mold replacement instruction is issued from the mold replacement instruction unit 38 based on the comparison result. The comment of the mold replacement instruction and the both lists are displayed in the mold list display unit 37. It is a thing. And
When the molds are exchanged based on the above comment, the mounting mold list is updated, and based on the comparison result of the comparison unit 36, the NC program updating unit 40 updates the NC program.

Therefore, according to the present invention, the necessary dies for the turret in the turret punch press can be replaced easily, accurately and quickly, and the NC program for controlling the turret punch press can be easily updated (edited). Since this can be performed, it is also effective in improving the setup time.

[Brief description of drawings]

FIG. 1 is a block diagram of a mold replacement instruction device according to an embodiment of the present invention, FIG. 2 is a front view showing an example of a turret punchless device, FIG. 3 is a plan view of a turret, and FIG. FIG. 5 is a block diagram of an NC device of a turret punch press, FIG. 5 is an explanatory diagram of a list display example, and FIG. 6 is a flowchart of a die replacement process. 31 ... Mold replacement instruction device 32 ... NC program input section 33 ... Used mold list extraction section 34 ... Used mold list storage section 35 ... Displayed mold list storage section 36 ... List comparison section 37 ... Mold list display section 38 Mold change instruction section 39 Mold rotating section 40 NC program update section 41 Exchange result input section 42 Installed mold list update section 43 Change program storage section

Claims (1)

[Claims] 1. A mold shape of a plurality of molds mounted in a plurality of mold mounting stations of a turret (3, 4) in a turret punch press (1), mold shapes of sizes and mounting angles, and the respective molds. A mounting die list storage unit (35) that stores the station numbers of the mounting stations in association with each other;
A used die list storage section (34) in which the station numbers and die shapes extracted from the NC program input from the program input section (32) are stored in association with each other; stored in both storage sections (34, 35) A list comparison unit (36) for comparing the installed mold list and the used mold list; a mold for giving a mold replacement instruction to each mold mounting station based on the comparison result of the list comparison unit (36). Mold replacement instruction section (38)
And; A mold list display section (37) for displaying comments on the mold replacement instruction of the both lists and the mold replacement instruction section (38).
And mounting for updating the mounting die list stored in the mounting die list storage section (35) when the die is exchanged according to the die exchange instruction of the die exchange instruction section (38). Mold list updating unit (42); the list comparing unit (36)
An NC program updating section (40) for updating the NC program based on the comparison result of
A die replacement instruction device for a turret punch press, comprising: an update program storage section (43) for storing the NC program updated by (0).