JPH0394934A - Device for designating exchange of die in turret punch press - Google Patents

Abstract

PURPOSE:To facilitate exchange by displaying the fitted die list and the used die list corresponding to the die shape in the station number and designating the exchange or change so as to fit the used die in the prescribed station number under the prescribed mode. CONSTITUTION:A die exchange designating device 31 has an NC program inputting part 32, a used die list extracting part 33 and a used die list storing part 34. Further, this device has a fitted die list storing part 35 and a list comparing part 36 for comparing the list stored to both the list storing parts 34, 35. By this method, exchange of the die can be easily, quickly and surely executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a die change instruction device for a turret punch press.

(Prior Art) As is well known, a turret punch press has a mold station on which a large number of molds can be mounted on the turret 1, and any mold can be mounted on any mold mounting station. Then, the mold mounting station designated by the NC program is indexed to a predetermined processing position, and punching is performed sequentially using the indexed mold.

Therefore, with such a turret punch press, check the molds to be used for the NC program that will be processed from now on using work sheets, etc., and make sure that each mold to be used is installed at the mold mounting station specified in the NC program. The mold must be converted accordingly.

However, in a turret punch press, the turret with numerous mold mounting stations is tightly housed within the frame, so the turret is manually rotated to index each mold to its checking position while checking. Therefore, it takes considerable effort and time to convert a large number of molds to match the molds used, and in some cases, the time required to change molds may be longer than the processing time. There was also.

Therefore, for example, JP-A No. 6 1. -1. 0 3 6
2 No. 9 (Mold management method for turret punch presses) assigns unique numbers to all molds, tracks the usage status of each mold, and attaches the installed mold number to each mold station. It has been proposed to utilize a mold list and even manage the number of hits for each mold.

(Problem to be solved by the invention) However, in the conventional mold management method as described above, since it is a condition that all molds be given unique numbers, molds that are not numbered are had the problem that it could not be applied and lacked versatility.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mold replacement instruction device for a turret punch press that has high versatility and can perform mold replacement easily, quickly, and reliably.

[Structure of the Invention] (Means for Solving the Problems) The present invention, which solves the above problems, provides a large number of mold mounting stations on a turret, and mounts any mold to any mold mounting station. In the mold change instruction device of a turret punch press, which performs a predetermined process with a predetermined mold while indexing the mold mounting station specified by the NC program to a predetermined processing position, the machine currently installed at each mold mounting station means for displaying a list of mounted molds that corresponds to the mold shapes currently installed and a list of used molds that corresponds to mold shapes corresponding to station numbers specified on the NC program; and means for comparing both lists of all molds; means for instructing replacement or change when a mold listed in the list of used molds is not installed in a predetermined manner in a predetermined mold mounting station; and a means for instructing replacement or change of the mold in response to automatic or manual replacement or modification; The present invention is characterized by having a means for updating the list.

The present invention is also characterized by having means for automatically adjusting the mold angle when the mold angles are different as a result of comparing both mold lists.

Furthermore, the present invention is characterized by having a means for changing the station number of the NC program for the used mold when it is found by comparison of both complete mold lists that the used mold is installed in another mold mounting station. do.

(Function) In the mold exchange instruction device for a turret punch press of the present invention, a list of installed molds and a list of used molds are displayed, in which station numbers correspond to mold shapes, and the used molds are assigned a predetermined station number. Replacement or modification is instructed so that the device is installed in a predetermined manner.

In addition, the angle can be automatically adjusted in case of a difference in angle.

Furthermore, if the station numbers are different by t, the station numbers can be automatically changed on the NC program.

(Example) Examples of the present invention will be described below.

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

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

The molds installed at each mold installation station S (IJ) are indexed directly below the ram 6 and are designed to perform predetermined processing on the workpiece W guided between the turrets 3 and 4. . The work W is gripped by the clamp device 7 and moved to the table 8.
You will be guided above.

As shown in FIG. 4, a control device (NC device) that controls the turret punch press 1 has a CP
UIO, ROMII, RAM 12 backed up by battery bit, digital input (Df) 13
, Digital output (Do) 1.4, Programmable controller (PC) 15, RAM between both (DP-
RAM) 16, serial interface (SIO) 1.
7, 18, parallel interface (Pro) 1.9, etc. are connected.

Various actuators 21 and sensors 22 are connected to Dil3 and Do 14 via connector modules 20.

The PC 15 refers to the detection number of the sensors 22, and
Control signals are output to various actuators 21 under the operating system of the CPUIO. This control signal includes a signal for rotating the turrets 3 and 4.

An encoder E and a servo motor MS with a tachogenerator TG are connected to the DP-RAM 16 via a positioning module 23 and a servo amplifier 24. The servo motor MS includes two-dimensional servo motors M.
Contains T.

The serial interface 17 includes a controller 2.
Manual data input device equipped with data manual keys such as color CRT 26 and numeric keypad through 5 (
MDi) 27 is connected.

The serial interface 18 includes a controller 2.
Control panel 2 for performing various operations via 8
9 is connected.

A paper table reader (PTR) 30 for NC deep manual operation is connected to the parallel interface 19.

A non-volatile memory for storing and storing NC programs is appropriately connected in parallel with the paper table reader 30, but is not shown.

To briefly explain the operation of the above control device, the NC program read from the PTR30 or a memory (not shown) includes the designation of a station number and the processing to be performed with the mold installed at this station. Information such as location is stored.

Therefore, the CPU 10 includes Dil3, Dol4, and PC15.
, the DP-RAM 16 is operated under the operating system, the turret 3.4 shown in FIG. For W,
The ram 6 is lowered to perform machining work.

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

As shown in the figure, the mold exchange instruction device 31 of this example includes an NC program manual section 32, a used mold list extraction section 33, and a used mold list storage section 34. It also has a list comparison section 36 that compares the lists stored in the mounting mold list storage section 35 and both list storage sections 34 and 35.

Used mold list storage unit 34 and installed mold list storage unit 3
An example of the list stored in 5 is shown in FIG.

FIG. 5 shows an example in which both lists are displayed on the screen 26A of the CRT 26, with the left column showing the installed mold list and the right column showing the used mold list. The rightmost column and the bottom column are comment columns, and the bottom column shows soft switch functions such as set completion, next page, and end.

Both lists contain number I for station number S (IJ).
Next to J, the mold shape (shape, X dimension, Y dimension) and mounting angle are described. The list of molds to be used indicates that a mold of a predetermined shape should be mounted at a predetermined mold mounting station S (IJ) at a predetermined angle. Furthermore, the mounted mold list shows the actual mold mounting status.

The list comparison section 36 includes a mold list display section 37 for displaying the list as described above, and a CRT
A mold exchange instruction section 38 that outputs a mold exchange command by changing the display contents, etc., a mold rotation section 39 that rotates the mold as appropriate for stations equipped with an auto index function, and an NC program change section 40 are connected. has been done. Further, a mounted mold list updating section 42 connected to the mounted mold list storage section 35 is connected to the mold rotation section 39 and the exchange result manual section 41 . The NC program updated by the NC program update section 40 is stored in the update program storage section 43.

Figure 6 shows the mold exchange method based on list comparison.

In step 601, both lists are displayed as shown in FIG. If the number of mounting mold stations is too large to fit on one page, the next page may be called.

In step 602, it is compared whether the mold to be used is at a predetermined station, and in step 603, a comment is displayed as shown in the rightmost column of FIG.

In this example, in the list of used molds, the specified mold (long angle, In this case, it is indicated that "replacement" is required because the one installed in another station cannot be used. In addition,
In this example, although molds of the same shape are attached to station 12D, this station is not equipped with an auto-indexing mechanism, so it cannot be used.

It is also shown that the molds to be installed at stations 3A and 7A are installed at stations 7A and 6A. Next, it is shown as rOKJ that a predetermined mold is attached to the stations 5A and 8G. Further, it is shown that station IOB is at a different angle, and station 13A is at a different angle although the mold of station 3A can be used. Finally, regarding station 2OA, "No mold" is displayed indicating that the mold is not found in the installed mold.

Therefore, in step 604, the process moves to step 605 or 606 depending on whether the mold rotation or mold replacement is necessary, and if automatic processing is possible, automatic processing is performed in step 605.

Cases where automatic processing is possible are: ■ When the mold can be rotated by the auto index mechanism; ■ When the mold installed in another station can be used by changing the station number; ■ When the mold can be rotated by combining ■ and ■. In this case, molds from other stations can be used.

In these cases (1) to (2), the mold is rotated as appropriate and its contents are stored in the mounting mold list. Also, when changing the station number, change the station number in the list of molds used.
Also change the station number of the C program. Furthermore, the comment display is also set to "OK".

On the other hand, cases where automatic processing is not possible include: (1) the station is not equipped with an auto-indexing mechanism and the angle must be changed manually; and (2) mold replacement is required.

In this case, "Replace J,""Anglechange" is displayed in red, blinking, or inverted in color in the comment field to prompt manual operation.

In step 607, the results of the mold exchange or angle change are input manually, and in step 605, the data is processed and the process moves on to the next list process. However, since there is a risk that the data will be erroneously input, the resulting input at step 607 will only indicate the end of the exchange or the end of the angle change, and the data will be exclusively used from the display list. That is, in the angle change end signal, the angle in the used mold list is transferred to the angle in the installed mold list. Furthermore, at the mold conversion end (set end) number, the shape data of the used mold list is transcribed corresponding to a predetermined station of the installed mold list.

Regarding mold replacement or angle change work, please refer to the comments below.

In step 606, the completion of all replacement is determined by operating the soft keys, and the entire replacement work is completed.

As described above, according to the mold replacement instructing device 31 of this example, it is only necessary to refer to the display as shown in FIG. 5 and proceed with mold replacement or angle change by sequentially following the list of used molds.
The mounting mold list is changed by inputting the conversion or change end signal.

In addition, when changing the station number, the NC is fully automatic.
．． Since the program is updated (edited), there is no need for unnecessary replacement work.

In the above procedure, when replacing the mold, turret 3 (4
) is automatically rotated so that the exchange station automatically comes to the mold exchange position.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in any appropriate manner by making appropriate design changes.

[Effects of the Invention] As described above, since the present invention is a mold exchange instruction device for a turret punch press as described in the claims,
Displays a list of installed molds and a list of used molds whose shapes correspond to station numbers, and instructs to replace the used molds so that they are installed in the specified station in the specified manner.
Mold replacement can be done easily, quickly and reliably, and there is no need to give a unique number to the mold, so versatility can be increased.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a mold exchange instruction device according to an embodiment of the present invention, Fig. 2 is a front view showing an example of a turret punchless, Fig. 3 is a plan view of the turret, and Fig. 4 is the above-mentioned A block diagram of the NC device of the turret punch press, FIG. 5 is an explanatory diagram of an example of list display, and FIG. 6 is a flowchart of mold exchange processing. 31... Mold exchange 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...Three mold conversion instruction sections...Mold rotation section 40...NC program update section 41...Exchange result manual section 42... Mounted mold list update section 43...change program storage section

Claims (3)

[Claims] (1) A large number of mold mounting stations are installed on the turret, any mold is mounted on any mold mounting station, and the mold mounting station is indexed to a predetermined processing position specified by the NC program. In the mold change instruction device of a turret punch press that performs a predetermined process with a predetermined mold, each mold mounting station has a list of installed molds that corresponds to the shape of the molds currently installed, and the information specified on the NC program. means for displaying a list of used molds in which mold shapes correspond to station numbers; means for comparing both mold lists; A mold for a turret punch press, comprising means for instructing replacement or change when the mold is not installed in a predetermined manner, and means for updating the installed mold list in response to automatic or manual replacement or change. Replacement instruction device. (2) The mold exchange instruction device for a turret punch press according to claim 1, further comprising means for automatically adjusting the mold angle when the mold angles differ as a result of comparing both mold lists. Mold change instruction device for turret punch press. (3) In the mold exchange instruction device for a turret punch press according to claim 1, when it is found by comparing both mold lists that the used mold is installed in another mold mounting station, the used mold is A mold exchange instruction device for a turret punch press, comprising means for changing a station number of an NC program for a mold.