JPH04100122A - Nc working program executing device - Google Patents

Abstract

PURPOSE:To efficiently perform working at a high speed by checking the format of an NC working program to convert it to an intermediate language before working. CONSTITUTION:Before working, a compiler part 1 reads in one-block components of an ASCII character string transferred from an input interface part 10 character by character and checks the format to check whether a numerical value following an address is matched to the data type of the address, whether addresses are compatible in one block or not, and whether commanded contents are compatible between blocks or not. If error is not detected, the character string is converted to the intermediate language and is stored in an NC working program memory 2; but otherwise, format error is recognized to generate an alarm. Thus, working is efficiently performed at a high speed.

Description

[Detailed description of the invention] [Industrial application field] This invention is based on an NC processing program that decodes and executes an NC machining program.
The present invention relates to an NC machining program execution device that can efficiently perform high-speed machining by checking the format of the NC machining program and converting it into an intermediate language before machining.

[Conventional technology]

The conventional NC machining program execution device is CNC (Com
Puterized Numerical Contr
oller) To read the required NC machining program block by block from the NC machining program storage memory built into the device, decode the machining commands written in that block, and control the operation of the machine's movable parts. Create execution data.

Here, the execution data refers to distribution pulse data for controlling a servo motor, and M and S output to a sequencer for controlling a mechanical auxiliary device such as an ATC.

For example, T code. Here, the M code means spindle normal rotation/
Reverse/stop command, coolant ○N/○FF command, ATC
(automatic tool change) command, etc., the S code is a spindle rotation speed command, etc., and the T code is a tool selection command, a tool correction amount selection command, etc.

By the way, the processing command written in the block is ASC
It is a combination of address + numeric value expressed in II characters.

Therefore, to decode a block, read the ASCII characters one by one, first interpret the address, check whether the number following the address matches the data type of the address, and if it matches, it will correspond to the address. Store the numerical value converted to binary data in the register.

If they do not match, an alarm is generated as a format error. Thereafter, it similarly reads one character at a time and stores the numerical value converted into binary data in the register corresponding to the commanded address. Such a read means the end of one block; (EOB)J
Do this until the letters appear. Then r; (EOB) When the J character is read, it is considered as the end of l block, and the consistency between addresses within one block and the consistency between the block just read and the contents commanded in the block before that block are checked. A check is performed, and if they match, execution data for controlling the operation of the mechanical movable parts is created.

If they do not match, an alarm is generated as a format error.

[Problem to be solved by the invention]

However, in the conventional technology, one block is decoded using ASCII.
Because the format must be checked while reading each character one by one, it takes time to decipher it, and if blocks with short execution times are executed in succession, the mechanical movable part will stop between blocks. As described above, when stopping between blocks, there is a problem in that the workpiece cannot be processed smoothly and the feed rate cannot be increased.

Therefore, in the present invention, when an NC machining program is stored in a CNC device, the format of the NC machining program is checked while being converted into an intermediate language and stored. Therefore, the format of the NC program is not checked during machining.
It is an object of the present invention to provide an NC machining program execution device 4 that can perform efficient and high-speed machining by decoding and executing the intermediate language.

[Failure to solve the problem]

In order to achieve this object, the present invention provides an NC machining program execution device that stores an NC machining program in a memory built into the CNC device before machining, decodes and executes the NC machining program, and comprises: When storing machining programs in CNC equipment,
It has a compiler section that converts into an intermediate language specific to the CNC machine and stores it, and an interpreter section that decodes and executes the intermediate language, and the processing compiler section converts the NC processing program into the intermediate language before converting it into the intermediate language. It is characterized by having means for performing a format check.

[Effect]

With the above means, when an NC machining program is stored in a CNC device, the format of the NC machining program is checked while being converted into an intermediate language and stored. During processing, the intermediate language is decoded and executed.

〔Example〕

Hereinafter, the present invention will be specifically explained based on Examples.

Fig. 1 does not show an embodiment of the present invention, but is a block diagram, and j indicates an intermediate processing while checking the format of an NC machining program inputted from a panel 8 or a host computer 9 such as an automatic block ramming device. 2 is an NC machining program memory unit that stores the intermediate language created by the compiler unit 1; 3 is an NC machining program memory unit that reads the intermediate language from the NC machining program memory unit 2 in the first place in one block during machining, and decodes the intermediate language. an interpreter unit that creates execution data for controlling the operation of the moving parts of the machine;
5 is an execution data buffer that stores the execution data created by the interpreter section 3, and 5 is an execution data buffer that reads the execution data in blocks from the execution data buffer 4, performs a sodoma operation, and sends commands to the servo control section 6. An interpolation calculation section that creates
1o is an input interface section that processes human power from the operation panel 8 or the host computer 9; 11 is a 1-block buffer section that stores one block's worth of NC machining program; 12 is a communication data buffer that is a communication buffer; 13 is an NC machining program execution device having the configuration of the present invention.

Next, processing that is a feature of the present invention will be explained.

NC machining program is MD from operation panel 8 before machining.
The data is input to the NC machining program execution device 13 by I (manual data input) or by communication from the host computer 9. The input interface section 10 divides the manually entered NC machining program into blocks and passes them to the compiler section 1. Here, in the case of MDI input from the operation panel 8, the method by which the human interface unit 10 divides into blocks is ";(
The ASCII characters that are input are stored in one block buffer 11 until ``EOB'' is input.

Then, when r; (EOB)
The I character string is stored in one block buffer 11. From then on, the process will be carried out in the same manner.

In the case of manual communication from the host computer 9, the transmitted ASCII character string is stored in the communication data buffer 12, and at the same time, the AS
The CII characters are read and stored in the 1-block buffer 11 until ``; (EOB) J is read. Then, when r; Pass it to part 1 and continue from the communication data buffer to ASCII.
The I character is read out and stored in one block buffer 11.

From then on, the process will be carried out in the same manner.

The compiler unit 1 reads one block of ASCII character strings passed from the human interface unit 10 one character at a time, following the address (checks whether the numerical value matches the data type of the address, and checks whether the numeric value matches the data type of the address). Format checks are performed, such as checking whether there is consistency between blocks and checking whether the contents commanded between blocks are consistent, and if there are no errors, it is converted into an intermediate language and the NC-processed Ebrograno, The data is stored in the memory unit 2, and if there is an error, a format error is generated and an alarm is generated.

Here, an example of the format of the intermediate language will be described with reference to FIG. 2. In the figure, 20 is a machining command for one block written in an NC machining program, and 21 to 24 are machining commands 20 broken down into addresses and converted into packages of addresses→numeric values.

Addresses and numerical values are converted into machine language ASCII code and binary code, respectively, which are easy to process. 21
2 is a package corresponding to a G code command, 22 an X-axis coordinate command, 23 a Y-axis coordinate command, and 24 a feed rate command.

The intermediate language described in the present invention is a package in this format. 25 is processing command 20
This is a statement language directive created by compiling the following.

During machining, the interpreter section 3 reads the intermediate language stored in the NC machining program memory section 2 block by block, decodes it, creates execution data, and stores it in the execution data buffer 4. By the way, when the NC machining program is already stored in the NC machining program memory section 2 in the form of an intermediate language, and the NC machining program is edited by MDI input from the operation panel 8, the compiler section 1 The block is read from the NC machining program memory section 2, decompiled into an ASC11 character string, and editing processing is performed on the ASCII character string.

With the above processing, there is no need to check the format of the NC machining program during machining, and all you have to do is decode the machining program, which is easy to process data, so blocks that do not take much time to decode and have a short execution time can be created in succession. Even when the machine is executed in the following manner, the mechanical movable part does not stop between blocks. Therefore, since the feed rate can be increased, high-speed machining can be performed.

〔Effect of the invention〕

As described above, according to the present invention, the format of the NC machining program is checked before machining and converted into an intermediate language, so there is no need to perform a format check of the NC machining program during machining, and the intermediate language All you have to do is decode it and create the execution data, so you can efficiently perform high-speed machining.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a specific embodiment of the present invention, and FIG.
The figure is an explanatory diagram showing an example of the format of the intermediate language created in the present invention. 1: Compiler section 2: NC machining program memory 3: Interpreter section 4: Execution data buffer 5: Interpolation calculation section 6: Servo control section 7 Servo motor 8: Imitation panel 9: Host computer 10: Input interface section 11: 1 block buffer 12: Communication data buffer 13: Nc machining program execution device 20: Machining commands 21 to 24 Intermediate language 25 for each near address; Intermediate language command

Claims (1)

[Claims] 1. An NC machining program execution device that stores an NC machining program in a memory built into a CNC device before machining, decodes and executes the NC machining program, When storing in CNC equipment,
It has a compiler section that converts into an intermediate language specific to the CNC machine and stores it, and an interpreter section that decodes and executes the intermediate language, and the processing compiler section converts the NC processing program into the intermediate language before converting it into the intermediate language. An NC machining program execution device characterized by having means for performing a format check.