JPS61103629A - Metal die controlling method of turret punch press - Google Patents

Abstract

PURPOSE:To smooth a metal die control by acknowledging the existing metal die of each station based on the metal die number registered in a memory and the station number registered corresponding thereto. CONSTITUTION:A proper number is given respectively to each metal die station, also a proper number is given on each metal die being set to each station in relation with the respective metal die containing rack. In an NC device 1, the bubble memory BM to memorize the number of each metal die and the number of using times also the metal die information thereof is provided. A manual data input device 41 with CRT to read or correct the contents of he memory is provided also. With said mechanism the existing metal die of each station can be confirmed via an NC tape 7 and master file MF. Consequently the metal die control is made smooth.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold management method for a turret punch press.

[Prior Art] A turret punch press equipped with a numerical control (hereinafter referred to as NC) device performs shearing, etc. by setting desired molds in each mold station of the turret.

In such a turret punch press, the number of prepared molds is usually greater than the number of molds that can be set on the turret at one time, that is, the number of mold stations.

The molds prepared in large numbers as described above are generally stored in a mold rack, and are manually attached to a mold station as needed to perform predetermined processing.

However, when managing the molds of the turret punch press as described above, there are many problems as follows.

■First of all, when starting work, the necessary molds must be installed at the designated mold stations, but it is not known which molds are currently installed at which stations. That's what it means. That is,
It is impossible to discover where the mold to be replaced is installed in multiple stations (for example, 72 stations) without actually visually inspecting the mold at each station, which requires a lot of effort and time. That's what I'm doing.

■In addition, the mold specified in the work instruction sheet is specified, for example, by specifying the shape, size, etc. of the mold. Therefore, the operator must find a desired mold from a mold rack containing a large number of molds (for example, 300 molds), which requires a lot of effort. This labor is related to where the mold taken out from the station for replacement is placed next.For example, if the mold is stored in a currently vacant place, it would require an extremely large amount of labor. It will become.

■Furthermore, the mold must be polished in a timely and appropriate manner.

The mold is regenerated by this polishing and its lifespan can be extended to the maximum extent possible. In order to perform this polishing in a timely manner, it is necessary to manage the number of times the mold is used, etc. by an appropriate method.
There is a method of recording the number of times the mold is used (number of hits) depending on the amount of mold wear.

Therefore, when the problems mentioned in (1) and (2) above are combined with the management of the number of times the mold is used as described in (2), mold management becomes a truly troublesome task.

[Object of the Invention] The present invention provides a turret punch that allows mold management to be performed extremely smoothly and easily, and in particular, allows the actually set molds to be easily and quickly confirmed at each mold station. The purpose is to provide a press mold management method.

[Structure of the Invention] The present invention for solving the above problems includes assigning a unique number to each mold, registering this unique number in a memory, and writing the unique number in the processing program. So,
According to the processing, the station number where the hit mold is installed is registered in correspondence with the unique number in the memory, and the mold number registered in the memory and the station number registered in correspondence with this mold number are registered. This mold management method for a turret punch press is characterized in that the mold number corresponding to the station number is displayed based on the station number, so that the mold currently attached to each station can be known.

In this way, the number of the set mold can be confirmed together with the mold station number on a display device, so that the set mold can be easily and quickly checked. Furthermore, if the mold number is the same as the storage location (address) name of the storage section such as a rack, mold management will be extremely smooth. Furthermore, if the number of times the mold has been used can also be stored in the same memory, management will become even smoother.

[Example] Hereinafter, the present invention will be explained in more detail based on the example shown in the drawings.

As shown in FIG. 1, the NG device 1 is connected to a turret punch press 3, and is driven by an NC tape 7 created by an automatic programming device 5.

The turret punch press 3 has a large number of mold stations 79 in the turret for setting molds, and in the illustrated example, only the turret (72 stations) is shown. Each mold station 79 is assigned a unique number (up to address 72), and each mold set in each mold station 79 also has a unique number (for example, number 1) associated with the mold storage rack. to address 300). The NC unit @11 includes a bubble memory BM that can store the number of each mold, the number of times each mold has been used, and also store the mold information (shape, size), and this bubble memory BM. A manual data input (hereinafter referred to as MDi) device 41 with a CRT is provided which can read out the contents of the image data or make corrections thereto.

FIG. 2 shows a block diagram of a device for implementing the present invention, FIG. 3 shows a module hierarchy diagram of an operating system for operating the numerical control device, and FIG. 4 shows a functional block diagram of the device.

As shown in FIG. 2, the CPU 9 and ROM 1 of the NC device 1
1. The RAMs 13 are interconnected via a system bus 15. Also connected to this system bus 15 are a digital input 17, a digital output 19, a programmable controller 21, a bidirectional RAM 23, two serial interfaces 25, 27, and two parallel interfaces 29, 31, respectively. .

The CPU 9 performs overall control of all two units under an operating system to be described later. The ROM 11 stores a control program, and the CPU 9 controls the turret punch press and performs other processing in accordance with this program.

The RAM 13 stores data being processed by the CPU 9, and provides this data to the data requesting section when necessary.

Above digital input 17, digital output 1
9 is connected to a solenoid, a limit switch, etc. via a connector module CM. Note that a photocoupler is used in these signal systems as a noise countermeasure, and the system is completely isolated from the outside.

The bidirectional RAM 23 (interpolation unit) has the X axis, Y axis, turret rotation axis (T axis), backlash adjustment axis (C
Each position control module 33 is connected to a servo amplifier 35, respectively.

Each servo amplifier 35 is connected to a drive motor M of a corresponding axis, and a tacho generator T is connected to each motor.
G and encoder E are respectively provided, and encoder E
A feedback signal from the tachometer generator TG is fed back to the position control module 33, and a speed signal from the tacho generator TG is fed back to the servo amplifier 35.

The serial interface 25 includes a CRT and an MD.
An MDi device 41 with a CRT 39 is connected via an i-controller 37. Also, serial interface 2
A control panel 45 is connected to 7 via a panel controller 43. A tape reader 47 is connected to the parallel interface 29. A bubble memory BM is connected to the parallel interface 31 via a bubble memory controller BMC.

The MDi device 41 can input control of display data and other key information. The display contents of the CRT39 include the number of the currently set mold and the number of times the mold has been used, as well as the status display, the position of each axis,
Programs and alarms can be displayed. Furthermore, from the MDi device 41, it is possible to switch display modes, manually input menus for each command, and manually input keys for NC programs.

The control panel 45 displays the control status, the status of each switch, etc. using LEDs, and is also capable of serial communication with the CPU 9. The tape reader 47 inputs the NC program from the paper tape.

The bubble memory BM has mask files MF for all molds (see FIG. 7), and the number of times the molds have been used is written in this bubble memory.

As shown in FIG. 3, the main control section 49 is located under the operating system 51, and the main control section 49 includes an automatic operation control section 53, an operation state management section 55, and a CRT and M
The data control unit 57 of Di is subordinate. An NC program input processing section 59, an arithmetic processing section 61, and an NC data output processing section 63 are subordinate to the automatic operation control section 53. The operation of each of these modules will be explained in detail with reference to FIG.

As shown in FIG. 4, the common table 65 in the RAM 13 (see FIG. 2) includes a Di/Do image table 67.
, operation control table 69, NC program output processing buffer 771, NC program calculation processing buffer 77
3. Equipped with NO program person Kabuff 775. N
The C program file 77 stores an NC program and is used in the memory operation mode. In the diagram, the flow of data is shown by solid lines, the flow of control signals is shown by broken lines, and the flow of control data is shown by thick arrow lines. It makes the elements communicate with each other.

The operating system 51 allows the use of high-level languages, making the software more advanced. Each module (process) shown in FIG. 3 operates under this operating system 51 and is scheduled efficiently in real time.

The main control unit 49 is the highest level process, and handles procedures for processing by the operating system, initialization diagnosis of hardware modules, etc., initialization of common tables, NC program files, etc., initialization of the axis control module 33, etc. Let's do it. After performing these processes, the four main control units control the automatic operation control unit 53 and the operation state control unit 55.
, and the CRT and MDi data control unit 57 are activated.

After startup, the automatic operation control unit 55 switches to memory mode, MDi
Controls automatic operation and program check operation in mode and tape mode. Then, the start timing of the processes of the program input processing section 59, arithmetic processing section 61, and NC data output processing section 63 is determined (after one block's worth of input processing, this is computed, and the result of this computation is output). control).

The operation control unit 55 is always in the RUN state, and monitors the operating status of the NC device and machine, such as Di/Do processing, manages the status of the axis control unit, etc., and generates alarms and handles interrupts in a timely manner. control.

The CRT and MDi data control section 57 controls display data for the CRT, registers NC programs, parameter data, and setting data, edits, and inputs one block of NC programs in MDi mode.

The NC program input processing section 59 inputs the NC program in each automatic operation mode, checks its format, and the like.

The arithmetic processing unit 61 performs coordinate calculations, feed rate calculations, etc., and creates specific axis control data for the axis control module 33.

The NC data output processing unit 63 outputs the axis υj control data processed by the calculation processing unit 61 to the axis control module 33 via the bidirectional RAM 23, and also performs processing such as dwell processing and auxiliary functions (M code). conduct. In addition, in this example, the NC data output processing section 63 is provided with a mold number recognition function and a current station number recognition function.
The mold number written on the NG tape is recognized here, and a cumulative signal of the number of times the mold is used per person is sent to the bubble memory BM in which this number is written. The station number is registered in bubble memory.

Next, details of a mold management method using the above device will be explained.

An example of the description of the NC tape 7 is shown in FIGS. 5 and 6.

The NC tape 7 shown in FIG. 5 is provided with a mold number entry field 79 for each of the six unit operations of the machining program (work performed with one mold, or so-called one block). This N
The C tape 7 can be used for normal punching work, and there is nothing else different about it. Further, the NG tape 7a shown in FIG. 6 is provided with a mold information writing field 81 in which information about the mold is written in addition to the mold number writing field 79.

This NO tape 7a is used to register mold information, and the shape, size, and other information of the mold are appropriately recorded for convenient mold management.

First, a new mold is prepared, and when this mold is stored in a rack, a mold number is set for this mold. The mold number is preferably determined in correspondence with the rack position a, such as 0935 for the 5th mold in the 3rd row of the 9th rack.

This number is then registered in the master file MF formed by the bubble memory BM along with the mold information shown in FIG. 6 above.

FIG. 7 shows a state in which the NC tape 7 shown in FIG. When a mold is used, only information such as the mold number, shape and size is recorded, and the number of times it has been used is zero (if it has already been used, the number of times it has been used may be recorded), and
The station number is also not written at this point (blank).

Next, a method of handling the numerical control device using the NC tape 7 shown in FIG. 5 will be explained.

Operating system 51 shown in FIGS. 3 and 4
When started, a machining program for one block is provided from the NC program input processing section 59 to the FJ section 61.
The calculation unit 61 analyzes the contents of this machining program and provides control data for the shaft cylinder to the NC data output processing unit 63.

The NC data output processing unit 63 not only distributes the control data of the shaft cylinder to each axis, but also recognizes the mold number and outputs the data control data to the operation control table 69, CRT and MDi data control unit 57.
, and updates the number of mold usages stored in the master file MF via the bubble memory controller BMC.

Therefore, each time a punching operation is performed, the number of times the mold is used is updated to a new value.

On the other hand, when the NC data output processing unit 63 recognizes the mold number as described above, it registers the station number where the punching operation is being performed in correspondence with the mold number in the master file MF (No. 7 (See the right column of the figure). This registration may be performed immediately before the punching operation, during the punching operation, or immediately thereafter. If another station number or one's own station number is already written in the station number storage field, the user updates and registers it with a new one.

As a result, the master file shown in Figure 7 stores the shape and size of the mold corresponding to the mold number, the number of times it has been used, and the station number where the mold is installed. Become.

Note that when removing the mold from the station, the number already stored in the station number storage column is
It can be erased using a device.

The contents of the master file MF created in this way can be displayed on the C-RT 39 using the MDi device 41. As a result, the mold number, its information, and the number of times it has been used are displayed on the C'RT 39, so that the operator can, for example, immediately know the mold to be polished based on the displayed contents. Further, the contents of the master file can be changed using the MDi device 41, and for example, for a polished mold, the corresponding number of uses can be cleared.

FIG. 8 is an example in which the arrangement of the master file MF shown in FIG. 7 is changed to a mold station number string and displayed on the CRT 39.

From FIG. 8, it is possible to know at a glance which mold is currently attached to which station. In addition, at this time, there is a possibility that multiple mold numbers will be displayed for the same mold station, but this fear can be avoided as described above.
Mold from station.

This can be resolved by clearing the station number memory column corresponding to the mold number when removing the mold.

Mold management involves arranging a large number of molds in a skillful manner, clearly understanding the condition of a given mold, and being able to easily remove it when necessary. etc. are considered important elements. Therefore, as mentioned above, the mold number is determined along with the mold storage location, and the number of times of use, mold information, and currently installed station number are stored in the master fill so that it can be displayed according to this mold number. If you do this, you will not lose track of the mold, you will be able to know the number of times it has been used, mold information as desired, and you will be able to know the molds currently installed at the station, making mold management easier. This makes it possible to smooth and simplify the process.

[Effects of the Invention] As described above, according to the present invention, mold management can be performed extremely easily, and in particular, the molds actually set can be easily and easily controlled at each mold station. It can be confirmed quickly.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of an outline of a device for carrying out the present invention, FIG. 2 is a block diagram of the device, FIG. 3 is a diagram of the operating system used in the NC device, and FIG. Figure 4 is a functional block diagram showing the functions of the NC device in detail, Figures 5 and 6 are illustrations of the NC tape, Figure 7 is an illustration of the mask file, and Figure 8 is an illustration of a CRT display example. be. 1...NC device 3...turret of turret punch press 5...automatic programming device 7.78-1" [tape 9 ・CP U39・
・・CRT 79・・・Mold number entry column B
M... Bubble memory MF... Master file Figure 1 Figure 2 Figure 5 Figure 6 Figure 8

Claims (4)

[Claims] (1) A unique number is assigned to each mold, and this unique number is registered in the memory, and the unique number is written in the machining program, so that it corresponds to the unique number in the memory depending on the machining. The station number where the hit mold is installed is registered, and the station number corresponding to the station number is registered based on the mold number registered in the memory and the station number registered corresponding to this mold number. A mold management method for a turret punch press, characterized in that the mold number is displayed so that the current mold installed at each station can be known. (2) The mold management method for a turret punch press according to claim 1, wherein the mold number matches a storage address of a mold storage location. (3) The metal of the turret punch press according to claim 1, wherein the number of times the mold is used is cumulatively registered in the memory in correspondence with the mold number registered in the memory. Type management method. (4) The memory is characterized in that mold information such as the size and shape of the mold is written in correspondence with the mold number registered in the memory. Mold management method for turret punch press.