JP2993538B2 - Numerical controller with multiple program functions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller having a multi-program function of a machining program.

[0002]

2. Description of the Related Art As a method of checking a machining program for numerical control, a method of displaying a program on a screen is generally used. FIG. 5 is a block diagram illustrating an example of a conventional numerical control device having a function of displaying a multi-program function for displaying a numerical control machining program on a screen. The machining program memory 1 stores the machining program. An operation panel (not shown) such as a keyboard by an operator
In response, the block PB of the machining program is sequentially read from the machining program memory 1 by the readout circuit 2 and displayed on the CRT display device 8 by the machining program display circuit 9 as a program list PL.

[0003]

According to the conventional numerical controller having a multi-program function described above, in the case of checking a machining program using the multi-program function,
When executing the program in the forward direction from the beginning, it is easy to first check the location where the child program was called, and after confirming the called child program, return to the checked calling location and continue the confirmation. However, in the case of checking from the middle of the child program, when searching for the calling place of the child program, the entire program is searched, and it becomes more difficult as the multiplicity increases.
When checking the hierarchy of a multiplex program, an operator or the like must search and check all program names of the program. Therefore, there is a problem that it takes a lot of time to confirm the machining program of the multiplex program.

The present invention has been made in view of the above circumstances, and an object of the present invention is to make it easy to confirm a multiplex program by displaying a list of each program name of the multiplex program in a tree form. It is an object of the present invention to provide a numerical controller having a multiplex program function.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a numerical control device having a function of multiplexing a machining program, and an object of the present invention is to analyze a machining program and call it from the machining program. First storage means for storing a child program name and a processing program name of a calling source; second storage means for storing a grandchild program name called from the child program and a child program name of a calling source; And a display means for displaying a machining program name, a child program name, and a grandchild program name in the order of a tree based on the contents stored in the second storage means.

[0006]

According to the numerical controller having a multi-program function of the present invention, each program name of the multi-program can be displayed in a tree-like list, so that the hierarchical structure of the multi-program can be understood at a glance. .

[0007]

FIG. 1 is a block diagram showing an example of a numerical control apparatus having a multiplex program function according to the present invention in correspondence with FIG. 5, and the same components are denoted by the same reference numerals and description thereof is omitted.
A machining program is stored in the machining program memory 1. When an operator or the like instructs an operation panel (not shown) such as a keyboard, the machining program is read from the machining program memory 1 for each block via the readout circuit 2. A multiplexed program command PC is selected by a multiplexed program command selecting circuit 3 which reads out and selects a CALL command and an O command which are program call commands and an RTS which is a return code. The O command PC1 in the parent program and the O command PC2 in the child program are written and stored in the child program memory 5 and the grandchild program memory 6. The stored O commands PC1 and PC2 are read from the child program memory 5 and the grandchild program memory 6 by the multiplex program list display circuit 7 and displayed on the CRT display 8 as a list PTB.

Next, before describing the flow of the operation of the apparatus of the present invention, the flow of a machining program using a general multiplex program will be described using an example of a machining program shown in FIG. The machining program starts with the program name O1000 and ends with M02. The command “CALLO1100” that calls the child program is included in the machining program.
And 'CALL O1200'. The child programs start with program names O1100 and O1200 and end with RTS. Further child program O11
00 is a command to call the grandchild program, 'CALL
O1110 'and' CALL O1120 '. The grandchild programs are program names O1110 and O1
It starts from 120 and ends with RTS.

The program is executed in the order of the arrows shown in FIG.
It starts from 1000 and proceeds to the block of 'CALL O1100' (B1). Next, from O1100, 'CALL
Proceed to the block of O1110 '(B2) and then O11
From 10 advance to the block of RTS (B3), 'CAL
Return to the next block of “LO1110”
The process proceeds to the block 120 '(B4). Next, O1120
Continue to the RTS block (B5), and call 'CALL
Return to the block next to O1120 'and proceed to RTS (B
6). Next, the process returns to the next block of 'CALL O1100' and proceeds to the block of 'CALL O1200' (B
7). Next, the process proceeds from O1200 to the block of RTS (B8), returns to the block next to 'CALL O1200', proceeds to M02 (B9), and ends the operation.

FIG. 3 is a flowchart showing an operation example of the apparatus of the present invention. First, it is checked whether or not an operator or the like has input a multiplex program list display command from an operation panel such as a keyboard (step S1). If not, the process proceeds to step S15. On the other hand, when the multi-program list display command is input in the determination step S1,
In accordance with the operation order, the readout circuit 2
1 block of the machining program is read out (step S
2) The multiplex program command selection circuit 3 checks whether there is a multiplex program command in this block (step S3), and if there is no multiplex program command, step S1.
Proceed to 4.

On the other hand, if there is a multiplex program command in the judgment step S3, the multiplex program command selection circuit 3 checks whether or not the multiplex program command is CALL (step S4). COUNT "is incremented by 1 (step S5), and step S5 is performed.
Proceed to 14. On the other hand, if the determination in step S4 is NO, the multiplex program command selection circuit 3 checks whether the multiplex program command is RTS (step S6). If the RTS is RTS, the memory write counter variable "COUNT" is decremented by -1. (Step S7), proceed to step S14. On the other hand, if the determination in step S6 is NO, the multiplex program command selection circuit 3 checks whether the content of the memory write counter variable "COUNT" is 0 (step S8). The name is written in the parent program name area of the child program memory 5 (step S9), and the process proceeds to step S14.

On the other hand, if the judgment in step S8 is NO, the multiplex program command selection circuit 3 checks whether or not the content of the memory write counter variable "COUNT" is 1 (step S10). Is written into the child program memory 5 as a child program name (step S11),
Proceed to step S14. On the other hand, if NO in the judgment step S10, the multiple program command selection circuit 3 writes the O command as the grandchild program name in the grandchild program memory 6 (step S12), and the O command written last in the child program memory 5 Is written into the grandchild program memory 6 as the program name of the call destination (step S13). Next, the multiplex program command selection circuit 3 checks whether reading of all blocks of the machining program has been completed (step S14), and if not completed, returns to step S2 and repeats the above operation.

On the other hand, when the reading is completed in the judgment step S14, the multiplex program list display circuit 7 reads the contents of the child program memory 5 and the grandchild program memory 6 (step S15), and creates a tree-like program name list. Display on the CRT display device 8 (step S1)
6). Here, FIG. 4 is a diagram showing an example of the multiplex program list displayed on the CRT display device. In the present embodiment, a case has been described in which one grandchild program memory is provided. However, if the hierarchy of a multiplex program further increases, the grandchild program memory may be increased.

[0014]

As described above, according to the numerical control apparatus having the multiplex program function of the present invention, each program name of the multiplex program can be displayed as a list in a tree form, so that the contents of the multiplex program can be confirmed and The hierarchy can be easily confirmed, and the confirmation time can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of a numerical controller having a multiplex program function according to the present invention.

FIG. 2 is a diagram showing an example of a machining program using a general multiple program function.

FIG. 3 is a flowchart showing an operation example of the apparatus of the present invention.

FIG. 4 is a diagram showing an example of a display screen of a multiplex program list in the apparatus of the present invention.

FIG. 5 is a block diagram showing an example of a conventional numerical controller having a multiple program function.

[Explanation of symbols]

 3 Multiple program command selection circuit 4 Memory write switching circuit 5 Child program memory 6 Grandchild program memory 7 Multiple program list display circuit

Claims (2)

(57) [Claims] In a numerical control device having a multiplex program function capable of calling a child program of a machining program in a multiplex manner, a machining program is analyzed, and a child program name called from the machining program and a machining program of a calling source are analyzed. First storage means for storing the name of the child program, second storage means for storing the name of the grandchild program called from the child program and the name of the child program of the caller, the first storage means and the second storage means And a display means for displaying a list in a tree form in the order of a machining program name, a child program name, and a grandchild program name based on the contents stored in (1). 2. The numerical control device having a multiplex program function according to claim 1, wherein a plurality of said second storage means are provided according to the multiplicity of a machining program.