JPH0219903A - Working program analyzing system - Google Patents

Abstract

PURPOSE:To obtain the accurate control data before the working is started by simulating a working program and analyzing the data which functions to drive a machine when the working is actually carried out for acquisition of said control data. CONSTITUTION:A simulation executing command is sent to a decoding part 21a of a CNC part 21 from an analyzing part 22a of a man-machine controller MMC part 22. Then the part 21a reads a commanded working program 51 for each block and converts this program into the data of an executing form. This data is outputted to a one block output register 22d and at the same time a decoding part decoding end flag is sent to the part 22a. The part 22a analyzes the data of a one-block executing form stored in the register 22d and stores the result of this analysis to a control data buffer 22b. The control data obtained finally in such a way is sent to a host computer 1 via an output part 22c. Thus the working control data can be obtained with no execution of the actual working.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to automation of various processing setups performed by line entry machines controlled by numerical controllers, and factory automation.
・Related to a processing program analysis method for obtaining processing control data used for labor saving and automation of process planning in automation.

As a typical example of conventional technical machining management, it is well known that tool life management is performed by obtaining tool life data. This is to manage the life of the tool by subtracting the life of the tool used when actually machining.The conventional machining control is based on the actual machining and the various results are calculated based on the results. It is for management.

Problems to be Solved by the Invention On the other hand, recently, factory automation has been introduced, in which unmanned operation of numerically controlled machines and various types of processing are performed while multiple numerically controlled machines in a factory are managed by a host computer. In such unmanned operation of numerically controlled machines and factory automation, it is necessary to predict and understand the machining situation before the start of machining, and to make pre-machining setups and process plans for factory automation. For example, how much time is required for machining with each machining program, what kind of tools are used, and does the tool life last until the machining is completed?
It is necessary to understand this in advance and use this information to construct a setup and process plan.

However, in the past, such management data could only be obtained after the actual machining was performed, making it time-consuming to optimize pre-machining setups and process planning in factory automation. Ta.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a machining program analysis method that can obtain machining management data without actually performing machining.

Means for Solving the Problems The present invention provides analysis means for analyzing data converted into an executable format in a numerical control device and creating processing management data, and provides information and analysis for specifying a processing program in the numerical control device. When an execution command is input, the designated program is read out, block by block is sequentially preprocessed, converted into executable format data, and outputted to the analysis means, which analyzes the executable format data and creates processing management data. The above problem was solved by outputting.

Operation When information specifying a machining program and an analysis execution command are input to the numerical control device, the numerical control device reads the specified machining program and preprocesses each block in the same way as when performing machining. , create executable data (binary data). In actual machining, pulse distribution, etc. will be performed based on the data in this executable format, and the machining will be performed.However, since it is an analysis execution command, the data converted to the executable format is sent to the analysis means, and the machining is executed. It will not be done. Then, the analysis means receives the executable format data for each block, analyzes the data, creates various processing management data, and when processing of all blocks of the specified program is completed, the processing management data of the specified program is generated. Obtainable.

Embodiment FIG. 1 is a block diagram of an embodiment of the present invention.
1 is a host computer, 2 is a numerical control device, and the numerical control device 2 is a CN0 that performs numerical control by a computer.
section 21, and the man-machine controller section (hereinafter referred to as MM
The host computer 1 and the numerical controller 2 are connected by a communication line 3 of an interface such as R3232C or R8422.

The host computer 1 is provided with a main control unit 11 that controls the numerical control device 2 in the factory, and a buffer 12 that receives analyzed management data, which will be described later.
A data file 41 for receiving management data as a file is provided in the disk memory 4 connected to the .

On the other hand, the CN0 section 21 of the numerical control device 2 has a conventional CNC
The MMC section 22 has a decoding section 21a that sequentially reads one block of the machining program and converts it into binary executable format data in the same way as the decoding section 21a. , analysis unit 22a that creates management data
9 Management data buffer that stores management data of analysis results?
22b, and an output section 22c for sending the management data to the outside, that is, to the host computer 1 in this embodiment.

FIG. 2 is a diagram showing the flow of data in this embodiment, in which data is sent from the main control unit 11 of the host computer 1 along with the ID code (A-PROG-ID) of the analysis processing program.
Analysis execution command (A-EXEC) and ID code of management data to be generated as necessary (8-0UT-ID),
When an auxiliary data file is required for analysis, such as a tool file or cutting condition file stored in the non-volatile memory 5, the ID of this auxiliary data file is
When the code ('A-AUX-ID) etc. are output and the MMC section 22 receives these commands, the analysis section 22a of the MMC section 22 issues a simulation start command (S-8TART
) and the machining program number to be simulated (S-
PROG-ID), that is, the 10 codes (A-PR
OGID) to the CN0 section 21. The decoder 21a of the CN0 section 21 reads the machining program of the commanded machining program number (S-PROG-ID) from the nonvolatile memory 5, initializes it, and prepares for decoding. Next, MMC
From the analysis section 22a of section 22 to the decoding section 21a of CN0 section 21
When a simulation execution command (S-EXEC) is sent, the decoder reads the commanded machining program block by block, performs preprocessing, and converts it into binary data, just like when the machine is actually driven. Convert to executable data. And normally, when driving a machine,
The machine is driven by performing pulse distribution etc. according to the data in this execution format, but since it is a simulation execution command, one block worth of data (0-REG
) is output to the 1 block output register 22d, and
The decoding unit 21a sends a decoding unit decoding end flag (0-END) to the analyzing unit 22a.

When the analysis section 22a receives the decoding end flag (0-END), it analyzes one block of executable format data stored in the one block output register 22d, and stores the analysis result in the management data buffer 22t). Thereafter, the decoder 21 continues until the simulation of the command machining program is completed.
a converts each block into executable format data, outputs it to the 1 block output register, and sets the decoding end flag (0-END).
), and the analysis unit 22a sets the decoding completion flag (0-E
ND), one block output register 22d
Analyzes one block of executable data stored in the file and obtains management data. The management data (A-DATA) of the final analysis result thus obtained is sent to the host computer 1 via the output section 22C.

The management data of the final analysis results may be simple data (for example, machining time, cutting distance, etc.) or a list of data (for example, a list of used tools).

It may be used (subprograms used, etc.). Therefore, on the host calculation I5!1 side, the management data buffer (H-
ABUF) and management data file (H-APILE) are available.

In this way, the host computer 1 uses the data stored in the management data buffer (H-ABUF) and the management data file (I-APILE) for pre-processing setups, process planning in factory automation, and the like.

FIG. 3 is a processing flowchart in the above-mentioned analysis section 22a and decoding section 21a.
receives an analysis execution command from the host computer 1 and detects it (step 100), the decoding unit 21 of the CN0 unit 21
A machining program and a simulation start command for the program are sent to a (step 101). The decoder 21a reads and initializes the command processing program (step 20).
0) On the other hand, the analysis section 22a next sends a simulation execution command to the decoding section 21a (step 102), and the decoding section 21
a receives this, decodes one block of the machining program, and creates binary executable format data (preprocessing) (step 2
01), is sent to the analysis section 22a. The analysis unit 22a analyzes and calculates this one block's worth of executable format data and creates management data (Step 103). If the program does not end, the process returns to Step 102 and repeats the same process.
When the machining program is completed and the simulation of the machining program is completed, final analysis calculation is performed to create final management data (step 105), and the management data is sent to the output section 22c (step 106), and the output section 22C
Host calculation through! ! Management data will be sent to 11.

The above management data includes ■ in one machining program.
Machining time, ■Cutting distance, ■List of tools used, ■List of subprograms used, ■List of machining processes, ■List of offset numbers used, ■List of numbers and times of auxiliary functions used,
and ■ There is a list of data in which the data from ■ to ■ above are classified and organized by keys such as tools, machining processes, axes, etc.

The machining time is determined by the 1 block output register (
Since the moving distance and feed rate of one block are sent as binary data to 0-REG>, by dividing this moving distance by the feed rate and adding each block sequentially, the machining time for one machining program can be found. It will be done. In this case, since the data to be stored in the 1-block output register (0-REG) is binary data, these operations can be easily performed.

Furthermore, when calculating the cutting distance, it is sufficient to sequentially add the movement distance of one block, and when the instruction for one block is a circular arc, the movement distance may be calculated from the center coordinates and radius. Since the tools used in each block can be determined from the data stored in the one-block output register 22d after decoding each block, the list of tools used can be created based on this information. Furthermore, since the tools used are known, the cutting distance and time for each tool used can be calculated, and tool life data can also be obtained.

Furthermore, the subprograms to be used can also be detected from the blocks that command the subprograms, and a list of used subprograms can be easily obtained. It is also possible to sequentially count the machining steps in the machining program, such as drilling, flat surface machining, pocket machining, etc., and obtain a list of machining operations, such as how many times these machining steps appear. Similarly, the offset number of the tool used can also be obtained.

In this way, instead of reading out the machining program one block at a time, converting it to executable format data, and using this executable format data as data to directly drive the machine, as when actually machining with a certain machining program. Since this data is used as data to obtain control data, accurate control data can be obtained even if there is a program that uses fixed cycles, custom macro commands, or tool radius offsets in the machining program. .

The executable format data is normally passed to the motor control section of the machine, but in the present invention, it is passed to the analysis section and analyzed to obtain management data, so the management data is prepared in advance before starting machining. and therefore,
You can organize setups and process plans efficiently. Furthermore, it is also possible to pass the executable format data to the analysis section and also to the motor control section, so that analysis data, that is, management data can be obtained while actually processing.

In this embodiment, the analysis section 22a is provided in the MMC section on the numerical control device side, but if the communication between the host computer and the CN0 section 21 is high-speed, the analysis section 22a can be installed in the host computer l11.
It may be provided within 1.

Effects of the Invention The present invention simulates a machining program and analyzes the data that drives the machine during actual machining to obtain management data, making it possible to obtain accurate management data before starting machining. This makes it possible to efficiently construct pre-processing setup work and process plans for factory automation.

[Brief explanation of the drawing]

Fig. 1 is a system block diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram explaining the flow of data in the embodiment, and Fig. 3 is a processing flowchart in the analysis section and decoding section in the embodiment. It is. 1... host computer, 2... numerical control device, 21.
...CNC section, 22...Man-machine controller section. 10th Prisoner

Claims (1)

[Claims] The numerical control device is equipped with an analysis means that analyzes the data converted into an executable format and creates machining control data, and when information specifying a machining program and an analysis execution command are input to the numerical control device, the specified program is read out. A machining program analysis method characterized in that each block is sequentially preprocessed and converted into executable data and output to the analysis means, and the analysis means analyzes the executable data to create and output machining management data. .