JPH03251341A - Priority degree attaching processing method for surface to be worked - Google Patents

Abstract

PURPOSE:To permit the perfect automation and introduce the AI technique by defining the shape value called as shape point in each working method and calculating the surface shape point from the shape having the defined shape value and carrying out the priority application for each surface, comparing the face shape point. CONSTITUTION:A shape at each working position is attached with a shape point according to a shape point attaching rule, referring to a shape point data base 10. Then, the face shape point is obtained from the shape point accord ing to a calculation rule, referring to a calculation method data base 20. Further, the fixation method is determined through the combination of the face shape point and the jig pattern, referring to a jig pattern data base 30. While, the position for which the working method is not yet determined is obtained, and the existence of the position to be worked is judged. Accordingly, the data at an intermediate level can be integrated by carrying out face shape point attachment for each face, and a CAPP system for handling the multisurface work can be perfectly automated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is based on CAPP (Computer Aided Application).
Process PlanniB) This invention relates to a processing order determination method in system automation, and particularly relates to automation of prioritization of processing locations across processing surfaces.

[Problem to be solved by the invention]

Conventionally, when ordering machining locations in the CAPP system, it has had a function to automatically order within the same plane, but ordering across planes has relied on human input. In other words, the conventional machining order determination processing method is interactive and human-powered, and even in systems that have attempted automation, there are no systems that take into account the mutual relationships between surfaces, and consideration of the relationship between machined surfaces and the shape of the entire surface is ignored. , the judgment is made by taking a close-up of only the particularly characteristic shape parts. Therefore, complete automation is difficult, and it is also difficult to introduce rules (including AI technology).

An object of the present invention is to provide a processing method for processing surface prioritization that eliminates such drawbacks.

[Failure to solve the problem]

The LJ processing method with machining surface priority of the present invention defines shape values called shape points for each machining method when ordering machining locations in a C/IPP system, and expresses the surface shape from that shape. The feature is that the shape points are calculated and the surface shape points are compared to automatically prioritize the surfaces.

The method of processing order determination processing according to the present invention employs the following method.

1. In order to simplify the comparison of each shape and introduce rules, (a) Shape points: numerical values of the machining shape for each machining location (b) Surface shape points Values calculated from the shape points in units of two surfaces We use a model that represents two shapes.

2. In order for the CAPP system to maintain versatility and flexibility, (a) Rules for adding shape points: Rules that determine how to set shape points (b) Calculation rules Method for calculating dihedral shape points from shape points Prepare rules to determine.

3. Prepare the following data database (DB) to implement this method.

(a) Shape points - DB: DBo with shape points stores information combining the processed shape model and its shape points for each rule. (b) Calculation method - DB Calculate dihedral shape points from the shape points DBo(C) Jig fixing pattern-DB that stores processing procedures: (1) Jig fixing pattern and all the jig information that makes it up, (2) Jig fixing pattern to determine the jig fixing method. D that stores the search procedure
B.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a flow diagram of an embodiment of the present invention.

In the figure, 10 indicates a shape point data database, 20 a calculation method data database, and 30 a jig fixing pattern database.

FIG. 2 is a diagram showing an example corresponding to the steps of the flow shown in FIG.

Each step will be explained with reference to FIGS. 1 and 2.

Step S1: Referring to the shape point data Hose 10, adding shape points to the shape of each processing location according to the rules) (W1+, W+., . . . + W21+ . . .
Add ).

FIG. 2(a) shows a front view (first surface) of the machined surface to which shape points are added, and the models to which points are added are surfaces, grooves, pockets, columns, holes, etc. Note that in FIG. 2(a), Wl, , indicates the first surface shape point.

Step S2: With reference to the calculation method database 20, the surface shape points (W
t1. W r z , ...) is determined.

FIG. 2(c) shows a state in which surface shape points are determined for each machined surface. In the figure, F, , indicates the n-th surface, and Wtr+ indicates the surface shape point of the n-th surface.

Step Sl: With reference to the jig fixing pattern database 30, a fixing method is determined by combining the surface shape points and the jig fixing pattern.

FIG. 2(C) shows the case where three-sided machining has been decided, and the machined surfaces are F, F5. F. In the figure, 40 indicates a jig, and 50 indicates a jig base, which is an example of a horizontal MC.

In step S4, a shape is obtained by removing machinable parts using the fixing method determined in step S3. In other words, report areas where the processing method has not been determined.

Step S5 If there remains a portion to be processed into the shape obtained in step S4, the process returns to step S1 with that shape.

If there are no areas to be processed, move on to the next step.

〔Effect of the invention〕

As explained above, in the processing order determination process of the CAPI' system, the conventional determination method was complicated, and the priority method was based on human interaction or the presence or absence of a special shape. On the other hand, by assigning surface shape points to each surface, data can be consolidated at an intermediate level, allowing complete automation of the C/IP11 system that handles multi-face machining, and making it possible to match the thinking of process designers. This has the effect of allowing flexible design and the introduction of AI technology.

[Brief explanation of drawings]

FIG. 1 is a process diagram of the present invention, and FIG. 2 is a diagram showing a specific example when the process of FIG. 1 is executed. 10... Shape point data Heath 20...
・Calculation method database 30...Jig fixed pattern data base 40...
...Jig 50...Jig base

Claims (1)

[Claims] (1) In the CAPP system, when ordering machining locations, define shape values called shape points for each machining method, calculate surface shape points representing the surface shape from that shape, and compare the surface shape points. A processing method for prioritizing machining surfaces, which is characterized by automating the prioritization of surfaces.