JPH1083213A - Method for generating machining data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain NC machining data for all works by generating tool track (CL) data on one work by an operator and inputting multiplex information for them. SOLUTION: A system comprises the generation of CL data from shape data 1 by a CL data generating device and the generation of NC machining data 5 from the CL data 3 by a postprocessor 4 on the whole. On a CL data generating device 2, the operator generates CL data 3 on one work first and the inputs the multiplex information. This information consists of the origins and measurement positions of respective works. Those are passed as CL data 3 to the postprocessor 4. The postprocessor 4 repeatedly analyzes the multiplex information, otuputs a work presence/absence measurement command, and extract one process from the CL data 3 to perform conversion to NC machining data 5. Thus, the postprocessor 4 automatically generates the NC machining data 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a CAM (Computer).
(Aided Manufacturing) system. Specifically, CAD / CAM system,
The present invention relates to creation of machining data in an automatic programming device or the like. Further, the present invention can be applied to an NC device.

[0002]

2. Description of the Related Art Conventionally, even when a plurality of same workpieces are machined, as shown in FIG.
The tool path (Cutter Location; hereinafter, CL
) Data, and a post-processor simply converts it into NC data by post-processing. Work 2
In some cases, CL data may be created by copying / converting the CL data of the work 1.

[0003]

The conventional method has the following problems (1) and (2). (1) When the operator creates CL data for all of the works 1 to n, it takes a long time to create the CL data and an error easily occurs.

(2) When the CL data of Work 1 is copied / converted to create CL data of Work 2 to Work n,
After the entire machining of the work 1 is completed, the process moves to the next machining, so the number of ATC (Automatic Tool Change) increases and the deviation of the finishing time of each of the works 1 to n is large. The variability is large.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to create machining data with a small number of operator operations, and to improve machining accuracy.

[0006]

According to the present invention, NC processing data is created by the following procedures (1) to (3). (1) First, CL data of the work 1 is created by an operator operation. This is the same as the prior art. (2) Next, the operator inputs a large number of pieces of information (work 1 to work 1).
n mounting position, measurement position).

(3) Based on the above information, the post processor automatically creates NC processing data according to the following procedures (1) to (4). Analyzes the multi-piece information and outputs a work presence / absence measurement command. The CL data of the work 1 is divided for each process (each ATC instruction). The CL data for each process is translated in accordance with the mounting position of each work. At this time, a processing skip command (GOTO statement) based on the work presence flag is automatically created.

[Operation] In the present invention, since the post-processor automatically creates the NC machining data for the workpieces 2 to n, the N for multiple machining can be performed with a small number of operator inputs.
C data can be easily created. In addition, since the processing of the works 1 to n is performed by ATC for each process, the number of ATCs is reduced. Further, compared to the case where the entire processing of the work 1 is completed and the processing is shifted to the processing of the works 2, the deviation of the finishing time for each work is small, and the processing accuracy can be made uniform.

[0009]

FIG. 1 shows a method of creating machining data according to an embodiment of the present invention, and FIG. 3 shows a basic configuration of a CAM system according to the present embodiment. As shown in FIG. 3, as the whole system, the shape data 1
From the CL data 3 by the post processor 4 and from the CL data 3 by the post processor 4.

In this embodiment, in order to mount a plurality of identical works and simultaneously process them, NC processing data is created by the following processing according to FIG. First, on the CL data creation device 2, the operator sets the C for one work.
Create L data, and input multi-person information.

[0011] As shown in FIG. 4, the multiple attachment information includes an origin and a measurement position of each work. In FIG.
O ₁ , O ₂ , O ₃ are the origins of each work, and M ₁ , M ₂ , M ₃
Is a measurement point. These are passed to the post processor 4 as CL data 3. The post processor 4 converts the data into the NC processing data 5 by repeating the following steps 1 to 5.

Analysis of multi-piece information Output of work presence / absence measurement command Extraction of one process from CL data of work 1 Path creation (coordinate conversion) for one process of work 2 to n and output of work machining skip command

FIG. 5 shows the format of the NC processing data 5. As shown in the figure, first, a command for measuring the presence / absence of works 1 to n is output, and then, process (each tool) and processing data for each work are sequentially output. Prior to each processing data, a command (IF ... GOTO ...) for skipping the process is output by a flag indicating the presence or absence of the work by the measurement (specifically, a variable value inside the NC device). .

As described above, in this embodiment, since the post-processor 4 automatically creates the NC processing data also for the workpieces 2 to n, the NC data for a plurality of processing can be performed with a small number of operator inputs. Can be easily created. In addition, since the processing of the works 1 to n is performed by ATC for each process, the number of ATCs is reduced. Further, compared to the case where the entire processing of the work 1 is completed and the processing is shifted to the processing of the works 2, the deviation of the finishing time for each work is small, and the processing accuracy can be made uniform.

[0015]

As described above, according to the present invention, the following effects can be obtained as described in detail with reference to the embodiments. The operator creates CL data for one work, and inputs information for attaching many pieces to the CL data.
NC processing data can be easily obtained. The number of ATCs is minimized. There is little difference in machining time of the same part of each part, and variation in machining accuracy due to thermal deformation of the machine is reduced.

[Brief description of the drawings]

FIG. 1 is a flowchart of a method for creating processed data according to an embodiment of the present invention.

FIG. 2 is a flowchart of a conventional CAM system.

FIG. 3 is a configuration diagram illustrating a basic configuration of an entire system according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram of multi-person information.

FIG. 5 is an explanatory diagram showing a format of NC processing data.

[Explanation of symbols]

 1 Shape data 2 CL data creation device 3 CL data 4 Post processor 5 NC processing data

Claims (2)

[Claims] When preparing NC machining data for mounting a plurality of same works and processing them at the same time, tool trajectory data of one work, a mounting position of each work and a measurement position for measuring the presence / absence of a work. And instructing the post-processor to automatically create measurement and machining data for all workpieces. 2. The post processor analyzes a large number of pieces of information, outputs a work presence / absence measurement command, divides a tool path data of one work into each process, and attaches a tool path data for each process to each work. 2. The method according to claim 1, wherein a parallel movement according to the position and a skip of a processing instruction based on a work presence / absence flag are automatically output.