JPH039808B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is for automatically forming a hole of a desired shape in a plate-like object such as a metal plate using a press mold or a laser beam according to a processing program. It relates to a machining program inspection device that pre-inspects machining programs used in drilling machines that perform drilling operations, and in particular, machining that sequentially displays the simulated machining shape and machining instructions of the machining program on a display device such as a CRT display tube. The present invention relates to a program inspection device.

[Prior Art] For example, a processing program used in a drilling device that sequentially selects a plurality of types of press dies to automatically form a hole of a desired shape in a metal plate is, for example, No. 9.
It is composed of a combination of multiple processing instructions as shown in the figure. That is, in the figure, 1 is a continuous program counter (PC), and each program counter 1 has a processing instruction 2 written therein. This machining command 2 is composed of a plurality of commands such as machining position and machining shape. for example,
In the processing instruction 2 of [X100Y100T10], the first
As shown in Figure 1, X of the metal plate to be processed,
It is shown that a circular hole 3 with a radius of 10 mm is formed at the (100 mm, 100 mm) position of the Y coordinate using a mold with model number [T10] shown in FIG.

Similarly, in [Y200C45T20] with PC=26,
The X coordinate is the X coordinate at the previous PC=25 (X=
100), move the Y coordinate to 200, and use the rectangular (10 mm x 100 mm) mold with the model number [T20] shown in Figure 10 at an angle of 45 degrees. As shown in the figure, (100, 200)
This shows that a [10×100] rectangular hole 4 inclined at 45° is formed at the coordinate position.

Furthermore, [G28] in the processing instruction 2 of [G28I100J45K3] with PC=27 indicates repetition. That is, it shows that the rectangular hole 4 according to the previous machining command 2 of PC=26 is formed at a pitch of 100 mm to form a rectangular hole 5 having a shape repeated three times in the 45° direction.

Note that [G92X1000Y1500] with PC=2 is a processing command that presets that the processing range on the metal plate is 1000 mm x 1500 mm.

Generally, before actually operating a drilling machine using such a machining program, a microcomputer is used to perform a simulation to find and correct any machining problems. Generally, on the CRT display screen, there is a frame indicating the machining range indicated by the machining command 2 of PC = 2 of the machining program shown in Fig. 9, and each machining command 2 is placed in the order of the program counter (PC) 1. , each step is displayed sequentially, and each machining command 2
Accordingly, the machined shapes of the holes 3, 4, and 5 shown in FIG. 11 are displayed. Then, the operator visually checks the correlation between each machining shape, the validity of the machining shape, and the validity of the machining position, and if there is a problem, it is displayed on the printed program list or CRT display screen. By examining each processing instruction 2,
Machining command 2 corresponding to the machining shape in question
The operator searches for it himself and corrects the corresponding processing instruction 2. Then, by simulating the modified machining program from the beginning again, it is confirmed that the correct machining shape is displayed on the CRT display screen.

[Problems to be Solved by the Invention] However, as described above, each machining command and machining shape are sequentially displayed on a graphic display device such as a CRT display screen. There was a problem. That is, if the machining shape in question is shown by the circular hole 3 in Fig. 11, and the machining position and shape are determined by one machining command 2 of [X100Y100T20] with PC=25, In the process of simulating the machining program, the machining shape of the circular hole 3 and the machining command 2 that determines this machining shape are displayed simultaneously on the CRT display screen, so the operator can select the machining command 2 for the machining shape in question. It is possible to identify immediately. Therefore, it is possible to easily modify the processing instructions.

However, the machining shape and machining position of the rectangular hole 4 or rectangular hole 5 shown in FIG. 11 are determined by a plurality of machining instructions 2. For example, the rectangular hole 5 is determined by three machining instructions 2, PC=25, 26, and 27. Therefore, this rectangular hole 5
At the time it is displayed on the CR display screen, the PC
Only one machining instruction 2 of =27 is displayed. Therefore, the operator cannot identify all the machining instructions 2 that determine the machining shape of this rectangular hole 5 just by looking at the machining command 2 of PC=27. There is a problem in that it is not easy to understand which processing instruction 2 should be modified.

In particular, when the machining shape becomes complex, the number of machining commands that determine one machining shape increases, and there is an error in machining command 2 on the program counter PC ten or more steps before, the operator may By the time the problem is discovered, the processing instruction 2 to be corrected has been erased from the CRT display screen. Therefore, there is a problem that only an expert who is familiar with the machining program can easily detect the machining instruction 2 to be modified.

Note that there is a certain restriction on the number of machining instructions of a machining program that can be displayed simultaneously on the CRT display screen, and displaying many machining instructions 2 at the same time makes the display screen complicated. Therefore, the operator must either examine each machining instruction in order from the beginning of the printed machining program, or restart the simulation from the beginning to find the problematic machining instruction. Therefore, there is a problem in that the efficiency of modifying and inspecting machining programs is reduced.

The present invention has been made based on these circumstances, and its purpose is to display a machining program that determines the machining shape when the displayed machining shape in question is specified using, for example, a cursor. Therefore, it is an object of the present invention to provide a machining program inspection device that allows even an operator who is not familiar with machining programs to easily identify a problem machining program and improve the efficiency of modifying and inspecting the machining program.

[Means for Solving the Problems] As shown in FIG. 1, the present invention provides a graphic display device that displays a machining program composed of a combination of a plurality of machining commands used in a drilling machine for a plate-like material. In the machining program inspection device that inspects the machining program by simulating the machining program on the machine 6, the graphic display means 7 displays each machining command of the machining program stored in the machining program storage means 8 as a graphic representing the machining shape. The figure to be processed is sequentially converted into figure information consisting of the figure and reference coordinates for specifying the position of the figure, and the figure to be processed is displayed on the figure display device 6. Further, when a desired part of the figure displayed on the figure display device 6 is specified by the figure specifying means 9, the specified part is displayed to be distinguished from other parts, and the search and display means 10 displays, The machining program stored in the machining program storage means 8 is searched based on the reference coordinates of the specified figure, and information that can identify the machining command of the machining program that displayed the specified figure is extracted and displayed. It is something.

[Operation] With the machining program inspection device configured as described above, the machining program stored in the program storage means 8 is converted into graphic information including reference coordinates for specifying the figure to be machined, and displayed on the figure display device. 6 will be displayed. When a desired figure is specified among the figures displayed on the figure display device 6, the specified figure is displayed to be distinguished from other parts, and the machining command of the machining program corresponding to the specified figure is displayed in the machining program. It is retrieved from the storage means 8 and displayed on the graphic display device 6.

[Example] An example of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram showing a schematic configuration of a machining program inspection device according to an embodiment. This machining program inspection device is roughly divided into a microcomputer 11 that stores machining programs and executes various calculation processes;
1, and a CRT display device 12 as a graphic display device that displays various machining shapes and characters of each machining command degree of a machining program in response to commands from 1.

The microcomputer 11 includes a CPU (central processing unit) 13 that executes various calculation processes.
A ROM 15 that stores control programs for executing various arithmetic operations via a bus line 14 consisting of an address bus and a data bus;
Information is exchanged between the RAM 16 as a machining program storage means that stores the machining program shown in the figure, the RAM 17 that stores various variable data such as interpretation data of each machining command in the machining program, and the CRT display device 12. Controls the interface circuit 18.

On the other hand, the CRT display device 12 displays figures, characters, etc. on the bus line 19.
CRT display tube 20, a keyboard 21 with cursor keys for moving the cursor position on the display screen of the CRT display tube 20, designation keys for specifying the problematic machining shape among the displayed figures, etc.; A RAM 22 for storage, an interface circuit 23 connected to the interface circuit 18 of the microcomputer 11, and a CPU 24 for controlling the operations of these components are connected.

In the RAM 16 of the microcomputer 11, as shown in FIG.
A machining program memory 25 that stores each machining command 2 explained in the figure in order of program counter (PC) 1
is formed. Further, in the RAM 17 of the microcomputer 11, as shown in FIG. An interpretation memory 26 is formed. Each interpretation data stored in this instruction interpretation memory 26 is based on the reference coordinates (X . ing. and,
Each interpreted data is attached with a data counter DC indicating the area in which this interpreted data is stored.

Furthermore, within the RAM 17, an area 2 is provided for storing a program counter PC corresponding to the machining instruction 2 being processed in the machining program memory 25 of the RAM 16.
7. Data counter DC indicating the data area in which the interpretation data being processed in the instruction interpretation memory 26 is stored.
The area 28 stores the minimum distance LM of each distance L between the basic coordinates (X, Y) of each machining shape displayed on the CRT display tube 20 and the cursor position coordinates (X ₀ , Y ₀ ). The data counter value MDC of the interpretation data corresponding to the machining shape indicating the minimum distance region 29 and the minimum distance LM, that is, the CRT display tube 20
A data counter of interpreted data indicating the machining shape to be displayed in a different color from other machining shapes on the display screen.
a display data counter area 30 for storing MDC;
and the program counter value MPC of the machining instruction 2 corresponding to the corresponding interpreted data, that is, the program counter MPC of the machining instruction displayed in a different color from other machining instructions 2 on the display screen of the CRT display tube 20
A display command area 31 is formed to store the .

The CPU 24 of the CRT display device 12 connects the microcomputer 11 to the interface circuit 2.
3, when each processing instruction 2 and the interpretation data corresponding to this processing instruction 2 are input, the CRT display tube 2
Display at 0. Further, in response to a cursor key operation on the keyboard 21, the cursor position on the display screen of the CRT display tube 20 is moved and the cursor coordinates (X ₀ , Y ₀ ) on the display screen are stored in the RAM 22 . Furthermore, the cursor coordinates (X ₀ , Y ₀ ) at the time when the designated key on the keyboard 21 is inputted are read from the RMA 22 and sent to the microcomputer 11 .

Therefore, the microcomputer 11 and
When the CRT display device 12 is powered on and becomes operational, the CPU 13 of the microcomputer 11
The program is configured to execute a simulation process of the machining program according to the flowchart shown in FIG. It is assumed that the machining program to be inspected has already been written in the machining program memory 25 of the RAM 16 by some method.

That is, when the flow diagram of FIG. 5 is started, P
1 sends a command signal to the CRT display device 12.
The display screen 32 shown in FIG. 6 on the CRT display tube 20 is erased. Next, in P2, each machining instruction 2 in the machining program memory 25 of the RAM 16 is searched, and the ninth
Search for machining command 2 starting with [G92...] indicating the machining range shown in the figure. And the X coordinate and Y
When a machining command for the machining range indicated by the coordinates is retrieved, a scale factor K is calculated from the machining range and the dimensions of the display screen 32 of the CRT display tube 20, and a frame 33 indicating the machining range protrudes from the display screen 32. Try not to.

Ru.

Next, at P3, the program counter PC in area 27 of RAM 17 is set to the initial value 1. At P4, the machining command 2 specified by the program counter PC indicated by the area 27 in the machining program memory 25 is read out. Then, when it is confirmed in P5 that the machining command 2 is not a machining command that indicates the end of machining,
From the machining command 2 read out in P6, reference coordinates (X, Y) indicating the machining position and display outline data Z for displaying the machining shape are calculated. That is,
If the read processing instruction 2 contains X and Y coordinates as shown in the processing instruction 2 of PC=25 in Fig. 9, the previously obtained scale factor K is applied to the X and Y coordinates. Multiply to obtain the reference coordinates (X, Y).
In addition, if the processing command 2 does not include the X and Y coordinates, as in the processing command 2 with PC=26 and 27 in FIG. Go back through the program counter PC and
The Y coordinate is determined and multiplied by the scale factor K to calculate the reference coordinates (X, Y). In addition, the displayed external shape data Z
Similarly, if the read processing instruction 2 includes the mold model number and inclination angle (rotation angle),
The mold dimensions of the model number are multiplied by the scale factor K, and displayed external shape data Z including the inclination angle is calculated. In addition, if the machining shape cannot be determined by one machining command, such as machining command 2 with PC=27 in Fig. 9, display external shape data Z is calculated using the same method as for calculating the reference coordinates (X, Y). .

When the reference coordinates (X, Y) and display outline data Z for one machining command 2 are calculated in P6, the reference coordinates (X, Y), display outline data Z and corresponding machining command 2 calculated in P7 are calculated. The program counter PC is stored as a set of interpreted data in the free data area of the instruction interpretation memory 26.
Store according to DP order. Next, the corresponding processing instruction 2 written in the instruction interpretation memory 26 at P8
The interpreted data is read out and sent to the CRT display device 12, and the processed shape 34 indicated by the external shape data is displayed at the reference coordinate (X, Y) position on the display screen 32 of the CRT display tube 20. Furthermore, at P9, the program counter recorded in area 27
The corresponding processing instruction 2 specified by the PC is displayed on the CRT display tube 20.
It is displayed together with the program counter (PC) 1 at the lower left position of the display screen 32.

Since the simulated display processing for one processing command 2 has been completed above, the operator waits for a very short fixed period of time necessary to check the display screen 32 in P10, and then displays the program counter in the area 27 in P11. After increasing PC by 1, P4
Return to machining command 2 specified by the increased program counter PC from the machining program memory 25.
Read out.

Then, if the machining command 2 read at P5 is an end command indicating the end of machining, the simulated display process for this machining program is ended.

Note that FIG. 6 shows a state in which the simulated display processing of all machining commands 2 of the machining program on the display screen 32 has been completed.

In addition, the CPU 13 of the microcomputer 11
When information indicating that a specified key has been operated on the keyboard 21 is input from the CRT display device 12, the seventh
The program is configured to specify the machining shape (figure) in the diagram and execute a machining command search process.

That is, the flowchart is started and the CRT is
When the key signal input information from the keyboard 21 is input from the display device 12 to the microcomputer 11, the type of the input key signal is checked in Q2. Then, in Q2, if the key signal is the specified key that specifies the problem machining shape, proceed to Q3,
The cursor coordinates (X ₀ ,
Y ₀ ). Next, in Q4, data counter DC in area 28 of RAM 17 is transferred to instruction interpretation memory 26.
Set to the first value. Furthermore, in Q5, the minimum distance LM of the minimum distance area 29 is set to the calculated maximum value.

When the above initial processing is completed, area 2
After confirming that the data counter DC of No. 8 has not reached the end value, at Q7, the command interpretation memory 26
The reference coordinates (X, Y) of the interpretation data specified by the data counter DC in the area 28 are read, and the reference coordinates (X, Y) and the previous cursor coordinates (X ₀ ,
Calculate the straight line distance L between Y ₀ ). and,
In Q8, the magnitude relationship between this distance L and the minimum distance LM stored in the minimum distance area 29 is checked, and if the calculated distance L is smaller than the stored minimum distance LM, this calculated distance is determined in Q9. L is stored in the minimum distance area 29 as a new minimum distance LM, and the data counter DC of the corresponding reference coordinates (X, Y) is stored in the display data counter area 30 as a display data counter MDC. And Q1
After incrementing the data counter DC in the area 28 by 1 at 0, the process returns to Q6 to check whether the increased data counter DC is the end value. In addition, Q
Minimum distance LM where distance L calculated in step 7 is stored
If it is larger, the process directly advances to Q10 and the data counter DC is incremented by 1.

When the data counter DC ends in Q6, the display data counter in the display data counter area 30 in the instruction interpretation memory 26 is reset in Q11.
Standard coordinates (X, Y) of interpretation data specified by MDC
Then, the displayed external shape data Z is read out, and the machining shape 34a corresponding to the displayed external shape data Z is displayed on the display screen 32 of the CRT display tube 20, as shown in FIG. Display by changing colors. The program counter PC of the corresponding interpreted data displayed in Q12 is stored in the display command area 31 as a display program counter MPC. Then, in Q13, five machining commands 2 before and after the machining command 2a specified by the display program counter MPC in the machining program memory 25 are read out, and each program counter (PC ) 1 and the respective processed shapes 34 on the display screen 32 of the CRT display tube 20 are displayed superimposed on the left side. Note that the center processing instruction 2a is displayed in a different color, such as red, from the other eight processing instructions 2.

In the machining program inspection device configured as described above, when inspecting a machining program, the machining program to be inspected is stored in the machining program memory 25 of the RAM 16 of the microcomputer 11 by some method, and then the fifth When the flowchart shown in the figure is started, each machining command 2 and the machining shape 34 corresponding to this machining command 2 are sequentially displayed on the display screen 32 of the CRT display tube 20 as shown in FIG. Although only one step of the command 2 is displayed at a time, the machining shape 32 corresponding to the later machining command 2 is displayed overlapping the previous machining shape 34 in sequence. When the simulation display process for all machining instructions 2 stored in the machining program memory 25 is completed, all machining shapes 34 formed by this machining program are displayed on the display screen 32 as shown in the figure.

Then, the operator observes each of the displayed machining shapes 34, and when a problem machining shape 34 is found, the operator operates the cursor keys on the keyboard 21 to display the machining shape 34 on the display screen 32, as shown in FIG. cursor 3
6 is moved to the vicinity of the processed shape 34a in question. Then, when the specified key on the keyboard 21 is inputted, the machining shape 34a in question changes to red, and the machining command 2 corresponding to the machining shape 34a changes.
a is displayed in red on the left side of the display screen 32, and five processing instructions 2 before and after this red processing instruction 2a are displayed in normal colors.

In this way, the operator can identify the problematic machining shape 34a.
By simply moving the cursor 34 nearby and operating the specified key, the machining command 2a corresponding to the machining shape 34a in question and the five machining commands 2 before and after are displayed, making it easy to determine the machining shape 34a in question. It is possible to search for each processing instruction 2a, 2.
Therefore, even an operator who is not familiar with machining programs can easily modify and check the machining programs. As a result, it is possible to greatly improve the efficiency of modifying and checking machining programs.

Furthermore, in this embodiment, the processing shape 34a in question and the corresponding center processing instruction 2a are
Since it is displayed in a different color from other machining shapes 34 and other machining instructions 2, modification and inspection of the machining program can be carried out more easily without making mistakes.

[Effects of the Invention] As explained above, according to the present invention, when a displayed machining shape (figure) that is a problem is specified using, for example, a cursor, a machining command for a machining program that determines this machining shape is displayed. I have to.
Therefore, even an operator who is not familiar with machining programs can easily identify the problematic machining command in the machining program, thereby improving work efficiency in modifying and inspecting the machining program.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a machining program inspection device of the present invention, Figs. 2 to 8 show an embodiment of the present invention, Fig. 2 is a block diagram, Figs. Figure 4 is a diagram showing the main memory of the storage section, Figures 5 and 7 are flowcharts showing the operation, Figures 6 and 8 are diagrams showing the display screen, and Figure 9 is a diagram showing the machining program. Figure 10
The figure shows the mold shape, and FIG. 11 shows each processed shape. 1...Program counter (PC), 2, 2a...
...Processing instructions, 11...Microcomputer, 1
2...CRT display device, 13, 24...CPU, 2
0...CRT display tube, 21...Keyboard, 25
...Machining program memory, 26...Command interpretation memory, 32...Display screen, 33...Frame, 34,3
4a... Machining shape, 36... Cursor.

Claims (1)

[Scope of Claims] 1. This machining is performed by simulating each machining command of a machining program composed of a combination of a plurality of machining commands 2 used in a drilling machine for a plate-like material on a graphic display device 6. In a machining program inspection device that inspects a program, a machining program storage means 8 that stores the machining program, and each machining command of the machining program stored in this machining program storage means are stored in a shape representing a machining shape and the position of this shape. a graphic display means 7 for sequentially converting the graphic information into graphic information consisting of reference coordinates for specifying the graphic information and displaying the graphic information on the graphic display device; When a part is specified, a figure specifying means 9 identifies and displays the specified part with respect to other parts, and a machining program is stored in the machining program storage means according to the reference coordinates of the specified figure. Search for machining programs,
A machining program inspection device characterized by comprising: search and display means 10 for extracting and displaying information on a machining command corresponding to the specified graphic or information that can specify this machining command. 2. The machining program inspection device according to claim 1, wherein the graphic display means displays the designated portion in a color different from other colors. 3. The search and display means simultaneously displays one piece of information that can specify the processing command that displayed the designated figure and other information that corresponds to a plurality of processing commands before and after it that are connected to it, and also displays this one piece of information. Claim 1 characterized in that the color for displaying the information is different from the color for displaying other information.
The machining program inspection device described in Section 1. 4. The graphic display device is constituted by a CRT display device, and the graphic display means displays the specified graphic in a color different from that of the graphic, superimposed on the graphic displayed by the graphic display means. 2. The machining program inspection device according to claim 1, wherein information on a corresponding machining instruction or information that can identify this machining instruction is extracted and displayed.