JPH06149336A - Nc program editing method - Google Patents

Abstract

PURPOSE:To provide an NC program editing method which can improve the automatic inserting function of the sequence numbers and can easily edit an NC program. CONSTITUTION:An NC program is loaded for insertion of the sequence numbers in a program loading step, and the sequence number initial value N0, the sequence number increase value DELTAn, the major section sequence number increase value DELTAN, and the value 0 of a counter (i) are set in a storage part in an initial setting step. Then it is decided whether a sequence number is registered for each part program or not in a deciding step. If so, the increase value DELTAn is successively added to a sequence number N' in a 1st sequence number setting step. If not, the initial value N0 is defined as a head block and the increase value DELTAn is successively added in a 2nd setting step. Then the value obtained by applying the integer multiplication to the increase value DELTAN is added when a process end block is included in the part program in a 3rd setting step.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an NC program editing method, and more particularly to a function for automatically inserting a sequence number in an NC program.

[0002]

2. Description of the Related Art In recent years, a storage device and an external editing device in a CNC device have been remarkably advanced and advanced, and accordingly, the number of CNC programs to be handled has been dramatically increased. However, in the conventional CNC device,
N is described at the head address of a predetermined block (one command unit) of the NC program, and N is followed by a sequence number consisting of numerical values (integers) 1 to 99999 within 5 digits. In general, this sequence number is described in the order of youngness in the younger order of the program according to the machining order, for example, at the time of starting the tool change or when moving the table and moving to a new machining surface, and re-editing the created NC program. It is also used when searching.

As an automatic insertion function of the sequence number in the NC program, a personal computer (P
There are some developed by C) etc., but this is a new N
The initial value and the increment value of the sequence number are preset when the C program is registered, and the sequence number is automatically added to the head address of each block of the NC program.

[0004]

However, the registered NC program is composed of a large number of programs as described above, and when the program needs to be modified and re-edited,
It is necessary to greatly modify the sequence number of the NC program registered earlier. In such a case, according to the automatic insertion function of the sequence number in the NC program according to the above-mentioned conventional technique, the operator manually operates to insert or change the sequence number for each block in the already registered NC program. There is a problem that it has to be re-edited, and that re-editing operation consumes a great deal of time and labor.

In view of the above problems, the present invention makes it easy for an operator to edit a sequence number in an automatic insertion function of an NC program without spending a lot of time and effort on the editing operation, and makes the NC program easy to read. It is an object to provide an NC program editing method.

[0006]

FIG. 1 is a flow chart showing the basic processing of the NC program editing method of the present invention. The NC program editing method of the present invention which achieves the above object is composed of the following steps in the NC program editing method. (1) Program loading step: An NC program consisting of one or more part programs for inserting sequence numbers is loaded in advance into the NC program editing device. (2) Initial setting stage: The sequence number initial value N ₀ , the sequence number increment value Δn, and the large section sequence number increment value ΔN are set in the storage unit in the NC program editing device. (3) Discrimination stage: It is discriminated whether or not a sequence number is registered for each part program forming the NC program. (4) Sequence number first setting stage: As a result of the discrimination in the discrimination stage, when there is a block in which the sequence number N'is registered in the part program, the registered sequence number N'is left as it is and the sequence number N '
A value obtained by sequentially adding the sequence number N ′ and the set sequence number increment value Δn is added as a new sequence number to a block successively following the sequence number and the sequence number is not registered. (5) Sequence number second setting step: As a result of the determination in the determination step, when there is no block in which the sequence number N'is registered in the part program, the sequence number initial value N set in the head block of the part program is set.
₀ is added as a sequence number, and a value obtained by sequentially adding the sequence number initial value N ₀ and the set sequence number increment value Δn is added to a block successively following the first block as a new sequence number. (6) Third step of setting sequence number: When there is a process end block indicating a code for ending a predetermined program process in the part program, the set major division sequence number increment is added to the blocks successively following the process end block. A value obtained by multiplying the value (ΔN) by an integer is added and added as a new sequence number.

[0007]

According to the NC program editing method of the present invention, when the sequence number is not registered in advance in the NC program, the sequence number initial value N ₀ is used as the sequence number of the first block, and the sequence number increment value Δn from the next block. N is added by adding a new sequence number
When the sequence number is registered in advance in the C program, the registered sequence number N'is left, and when the sequence number is not added to the block following the sequence number N ', the sequence number increment value Δn from that block is added. Is added in sequence to add a new sequence number. When there is a process end block indicating a code for ending a predetermined program process in the part program forming the NC program, a value obtained by multiplying the major division sequence number increment value ΔN by an integer is added and added as a new sequence number. . Therefore, a sequence number is added to the NC program in consideration of the contents of the program, and the NC program is easy to read. Further, even for an NC program in which a sequence number has already been registered, a new sequence number can be automatically inserted with the sequence number left or rewritten, so that the time and labor required for inserting the sequence number can be greatly reduced.

[0008]

FIG. 2 is a flow chart showing the processing with a sequence number in the NC program editing method according to the embodiment of the present invention. The processing of this NC program editing method includes the following steps. In the following, the number following S indicates a step number. (Step S1): The operator has a predetermined length of N program including a large number of NC programs for automatically inserting sequence numbers in advance, for example, NC programs for workpiece machining or tool exchange.
The C program is loaded into the NC device, the sequence number initial value N ₀ , the sequence number increment value Δn, and the major segment sequence number increment value ΔN are set, and the value of the counter i in the NC device is set to 0. Here, the sequence number initial value N ₀ is a value indicating the sequence number to be inserted in the block described at the beginning of the NC program of the predetermined length. The sequence number increment value Δn is an increment value that is sequentially added to the sequence numbers of blocks successively following the block of that sequence number. The large sequence number increment value ΔN means E in the NC program of the predetermined length.
Individual N separated by OB (End of Block)
In a C program (hereinafter referred to as a part program), for example, it is an increment value of a sequence number added to identify that the content of the program has changed in the head block of the NC program immediately after the tool change or the switching of the machining process.

(Step S2): The processor of the NC unit sets the sequence number initial value N ₀ , the sequence number increment value Δn, and the large segment sequence number increment value Δ set as described above.
Each value of N is stored in each corresponding register of the storage unit, and the data stored in the register of the large sequence number increment value N ₀ is written as the data of the register storing the value of the sequence number N. (Step S3): Whether or not any block in the NC program of the predetermined length has a sequence number description, for example, at least one N is described at the head address of each block in the NC program. When it is determined that the sequence number is described in the NC program, the process proceeds to step S4, and if it is determined that the sequence number is not present, the process proceeds to step S21.

(Step S4): It is judged in the same manner as in step S3 whether or not a sequence number such as N'is already registered in the part program forming the NC program in sequence. If it is registered, Step S5, if not registered, step S5
Go to 8 respectively. (Step S5): For the part program forming the NC program, it is sequentially determined whether or not there is a code indicating the end of the process in the part program, for example, M60, and if there is not, the process proceeds to step S6, and if there is, Step S
Proceed to 34. (Step S6): The sequence number N is inserted at the head address of the first block in the part program. (Step S7): N = N + Δn is calculated, and step S
Proceed to 11.

(Step S8): For the part program forming the NC program, it is sequentially judged whether or not there is a code indicating the end of the process, for example, M60, in the part program. If so, the process proceeds to step S44. (Step S9): The sequence number N'is inserted as it is. (Step S10): N = N '+ Δn is calculated, and the process proceeds to step S11. (Step S11): The part program is the NC
Whether or not it is the last part program of the program is determined by whether or not there is an instruction of M30 in the last block of the part program. If it is present, the process ends. If it is not present, the process returns to step S4.

FIG. 3 is a flow chart showing a process without a sequence number in the NC program editing method according to the embodiment of the present invention. (Step S21): For the part program forming the NC program, it is sequentially judged whether or not there is a code indicating the end of the process, for example, M60, in the part program. If there is no code, the process proceeds to step S22, and if there is, a code. It proceeds to step S24. (Step S22): The sequence number N is inserted at the head address of the first block in the part program. (Step S23): N = N + Δn is calculated, and the process proceeds to step S27. (Step S24): 1 is added to the value of the counter i. (Step S25): The sequence number N is inserted at the head address of the first block in the part program. (Step S26): N = N ₀ + ΔN × i is calculated, and the process proceeds to step S27. (Step S27): The part program is the NC
Whether or not it is the last part program of the program is determined by whether or not there is an instruction of M30 in the last block of the part program. If YES, the process ends. If NO, the process returns to step S21.

N for which the sequence number is not registered
Although the case where the major section sequence number increment value is added only to the C program has been described, the major section sequence number increment value may be added to the NC program in which the sequence number is registered. The processing in this case will be described below with reference to FIG. In the case of adding the large segment sequence number increment value to the NC program in which the sequence number is registered, the process end in the part program being processed regardless of the determination result after step S4. The above step S5 or step S8 for determining whether or not there is a code indicating

On the other hand, when it is determined in step S4 that the sequence number is not registered, and when it is determined in step S5 that there is a code indicating the end of the process in the part program being processed, Perform the following process. (Step S34): 1 is added to the value of the counter i. (Step S35): The sequence number N is inserted at the head address of the first block in the part program. (Step S36): After calculating N = N + ΔN × i, the process proceeds to step S11. If there is no code indicating the process end in the part program as a result of the determination in step S5, the above-mentioned step S
6. Execute step S7.

On the other hand, when it is determined in step S4 that the sequence number is registered, and when it is determined in step S8 that there is a code indicating the end of the process in the part program being processed, Perform the following process. (Step S44): 1 is added to the value of the counter i. (Step S45): The sequence number N'is inserted as it is. (Step S46): After calculating N = N '+ ΔN × i, the process proceeds to step S11. If there is no code indicating the process end in the part program as a result of the determination in step S8, the above step S
9. Execute step S10.

However, in step S3, if the operator decides to edit the sequence numbers of the NC program all together, even if the NC program has a sequence number description, the sequence can be shifted to step S21. Is. In this case, the sequence number automatic insertion mode described above is first switched to the semi-automatic insertion mode. For this mode change, for example, a function key is displayed on the CRT screen of the NC device, and the operator selects and switches between the automatic insertion mode and the semi-automatic insertion mode. In the automatic insertion mode, step S of the above-mentioned flowchart.
3 is executed, and in the semi-automatic mode, select whether or not you want to rewrite the sequence number for the NC program in which the sequence number is registered in advance with the function key provided, and rewrite the sequence number newly. If desired, the process proceeds to step S21 described above, and if it is not desired to rewrite, the process proceeds to step S4. Further, these function keys can also be realized by setting data of a predetermined parameter inside the NC device to 1 or 0.

FIG. 4 is a diagram showing an example of an NC program generation process for inserting a sequence number into an NC program to which a sequence number is not added. FIG.
(B) is a diagram showing the NC program after generation.

FIG. 4 shows the sequence number initial value N ₀ = 10.
00, a sequence number increment value Δn = 10, and a major segment sequence number increment value ΔN = 1000, an example of automatic insertion of sequence numbers will be shown. The start address of the block of the part program becomes 1000, and the increment 10 is added to the block. Immediately after the block of the M60 tool change process command, the block immediately after the block has a sequence number initial value N ₀ = 1000. 1000 and counter i
It can be seen that the value obtained by adding the product of and is written as the sequence number.

FIG. 5 shows N with sequence numbers added.
It is a figure which shows the example of the NC program production | generation process which inserts a sequence number in C program, (A) before production | generation.
(B) is a diagram showing the NC program after generation.

FIG. 5 shows the sequence number initial value N '= 10.
An example of automatic insertion of sequence numbers when 0 and 200 are described in the part program and the sequence number increment value Δn = 10 is shown. This NC program ends with the M30 End of Tape.

[0021]

As described above, according to the NC program editing method of the present invention, the automatic sequence number insertion function in the NC program is improved, and the operator does not spend a great deal of time and effort on the editing operation. Since it can be easily edited and can be identified by the sequence number for each content of the NC program, the NC program is easy to read and search or the like is easy.

[Brief description of drawings]

FIG. 1 is a flowchart showing basic processing of an NC program editing method of the present invention.

FIG. 2 is a flowchart showing processing with a sequence number in the NC program editing method according to the embodiment of the present invention.

FIG. 3 is a flowchart showing processing without a sequence number in the NC program editing method according to the embodiment of the present invention.

FIG. 4 is a diagram showing an example of an NC program generation process of inserting a sequence number into an NC program to which a sequence number is not added, where (A) shows the NC program before generation and (B) shows the NC program after generation. It is a figure.

FIG. 5 is a diagram showing an example of an NC program generation process of inserting a sequence number into an NC program to which a sequence number is added, (A) showing an NC program before generation and (B) showing an NC program after generation. It is a figure.

[Explanation of symbols]

 1 ... Program loading stage 2 ... Initial setting stage 3 ... Judgment stage 4 ... Sequence number first setting stage 5 ... Sequence number second setting stage 6 ... Sequence number third setting stage

Claims (1)

[Claims] 1. An NC program editing method for adding a sequence number to an NC program, wherein the NC program consisting of one or more part programs for adding a sequence number is loaded into an NC program editing device for editing the NC program in advance. An initial setting step of setting each value of a sequence number initial value (N ₀ ), a sequence number increment value (Δn) and a major division sequence number increment value (ΔN) in a storage section in the NC program editing device; A determination step of determining whether or not a sequence number is registered for each of the part programs, and, as a result of the determination, if there is a block in which the sequence number (N ′) is registered in the part program, the block is registered. The sequence number (N ')
The sequence number (N ′) and the sequence number increment value (Δ) are added to a block that sequentially follows the sequence number (N ′) and has no registered sequence number.
n) is sequentially added as a new sequence number, and a sequence number first setting step is performed. According to the determination result, when there is no block in which the sequence number (N ′) is registered in the part program, , The sequence number initial value (N ₀ ) is added to the first block of the part program as a sequence number, and the sequence number initial value (N ₀ ) and the sequence number increment value (Δn) are added to blocks sequentially following the first block. ) And a sequence number second setting step for adding a value as a new sequence number, and if there is a process end block indicating that the process of a predetermined program has ended in the part program, the process end In the block following the block, a value obtained by multiplying the large section sequence number increment value (ΔN) by an integer And a sequence number third setting step of adding and adding as a new sequence number.