JP2762835B2 - Machining program generation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machining program generation method, and more particularly, to define a machining shape on a drawing (for example, a CRT) and automatically calculate a machining program for machining the machining shape. And a method for generating a machining program to be output.

[0002]

2. Description of the Related Art FIG. 6 is a flowchart showing a conventional machining program generation method. In step 40, a processing shape is created on the screen. FIG. 7 illustrates processing shapes 1 to 6. In step 43, the position of the initial hole (processing start point) is specified on the screen. FIG. 7 illustrates the initial hole 7. In step 44, an approach shape is designated on the screen. For example, the processing shape 1 is designated as the approach shape in FIG.

In step 60, steps 40, 4
A machining program is created based on the data created in steps 3 and 44. FIG. 8 illustrates a machining program created from the data in FIG. 50 is the auxiliary NC required before starting machining
Code. 51 to 55, 57, 59, 60, 61
Is a machining path NC code.

In step 61, a machining program is edited. For example, when a user wants to insert a desired NC code into a connection point (corner portion) of the machining shapes 2 and 3 in FIG.
The processing path NC codes corresponding to the processing shapes 2 and 3 are determined from the XY coordinate values of the processing path NC codes, and a desired NC code is inserted between them. Thus, a desired machining program is generated.

Japanese Patent Application Laid-Open No. 2-212904 discloses that a desired NC code is inserted at a desired position by designating a desired position on a processing shape of a screen with a mouse and inputting a predetermined command by key. A technique for generating a modified machining program is disclosed.

[0006]

In the above-described conventional machining program generation method, the user analyzes the generated machining program and checks whether a desired NC code is inserted at a desired position. However, it is burdensome for the user to analyze the machining program, errors are easily overlooked, and the reliability of the machining program is low.

An object of the present invention is to provide a machining program generating method capable of easily checking whether a desired NC code is inserted at a desired position.

[0008]

According to the present invention, there is provided a machining shape defining step for defining a machining shape on a screen, and an insertion position of an NC code to be inserted into a machining program generated from the defined machining shape. Insertion position specification step to be specified on the machining shape displayed in , and the displayed position
Or an insertion that indicates that the specified position is
Insertion position designation mark and NC to be inserted at the designated position
To create a machining program to insert the NC code based on the insertion symbol display step of displaying the combined NC code insertion symbols machining shape displayed on the screen, the insert designated machining shape and NC codes defined representing a code And a machining program creation step.

[0009] The above configuration odor Te, preferably in the insert can be specified multiple i.e. a group of NC code to a single insertion position. Also, in the above configuration, the registered one (or
Or one group) of NC codes can be specified multiple times.
You.

[0010]

According to the machining program generation method of the present invention,
Mark the NC code insertion position on the screen according to the machining shape.
Since symbolize the content type of the NC code to click displaying and inserting, or to insert what NC code to which position can be visually confirmed on the screen. Therefore, the burden on the user can be reduced, errors can be reduced, and the reliability of the machining program can be improved. In addition, I have registered
Insert one (or one group) of NC codes into multiple locations
Can be specified, so the burden of user's insertion
Is reduced.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG. FIG.
CAD / machine for implementing the machining program generation method of the present invention
FIG. 2 is a block diagram of the CAM device 100. This CAD / C
In the AM device 100, 101 is an input device including a mouse and a keyboard, 102 is a processing device including a CPU, ROM, and RAM, 103 is a display device including a CRT, and 104 is an output device including a floppy disk drive.

FIG. 2 is a flowchart showing an embodiment of the machining program generating method according to the present invention. Step 4
At 0, a machined shape is created on the screen. FIG. 7 illustrates processing shapes 1 to 6.

In step 41, as shown in FIG. 3, desired NC codes are registered in correspondence with the NC code insertion symbols. When a plurality of NC codes are inserted integrally, the NC codes may correspond to one NC code insertion symbol.

In step 42A, the position where the NC code is to be inserted is designated by a mouse on the processed shape of the screen, and an NC code insertion symbol corresponding to the NC code to be inserted is input by key. The same NC code insertion symbol may be specified at different positions. In step 42B, the insertion position designation mark and the NC code insertion symbol are displayed according to the processing shape of the screen. For example, as shown in FIG.
The insertion position designation marks 8, 10, 12 and the NC code insertion symbols 9, 11, 13 are displayed. Note that the insertion position designation marks 8, 10, and 12 mean that the NC code is inserted at the end point on the processing shape closest to them. The NC code insertion symbols 9, 11, and 13 mean that the NC code registered in step 41 is inserted. Steps 42A and 42B are repeatedly executed until the insertion instruction is completed.

In step 43, the position of an initial hole (processing start point) is designated on the screen. FIG. 4 illustrates the initial hole 7. In step 44, an approach shape is designated on the screen. For example, in FIG.
Is designated as the approach shape.

In step 45, steps 40, 4
A machining program is created based on the data created in 1, 42A, 43, and 44.

FIG. 5 shows an example of a machining program created from the data shown in FIG. Reference numeral 50 denotes an auxiliary NC code required before the start of machining. 51-55, 57, 59-61
Is a machining path NC code. Reference numeral 56 denotes an NC code corresponding to the NC code insertion symbol 11 in FIG. 5
8 is an N corresponding to the NC code insertion symbol 13 in FIG.
This is a C code. Reference numeral 62 denotes an NC code (program stop code) corresponding to the NC code insertion symbol 9 in FIG.

According to the CAD / CAM apparatus 100, which NC code is to be inserted into which position can be visually confirmed on the screen, so that the burden on the user can be reduced, errors can be reduced, and the processing program can be reduced. Reliability can be improved. In addition, since one registered NC code can be inserted and designated at a plurality of positions, the burden of the insertion designation work on the user can be reduced. Furthermore, a plurality of NC codes are
By registering the code corresponding to the code, a plurality of NC codes can be specified to be inserted at one insertion position. This also reduces the load on the user for specifying the insertion.

[0019]

According to the machining program generating method of the present invention, the position where the NC code is to be inserted can be visually confirmed on the screen, so that the burden on the user is reduced.
You. In addition, one (or one group) of registered NC code
Can be specified at multiple positions, so that
The load of the insertion designation work of the user is reduced. Therefore, errors can be reduced and the reliability of the machining program can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a CAD / CAM apparatus that executes a machining program generation method according to the present invention.

FIG. 2 is a flowchart of an embodiment of a machining program generating method according to the present invention.

FIG. 3 is a registration table diagram of NC code insertion symbols and NC codes.

FIG. 4 is an exemplary view of a screen display according to the present invention.

FIG. 5 is an exemplary diagram of a generated machining program.

FIG. 6 is a flowchart of an example of a conventional machining program generation method.

FIG. 7 is an illustration of a conventional screen display.

FIG. 8 is an exemplary diagram of a generated machining program.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 CAD / CAM device 101 input device 102 processing device 103 display device 104 output device 1 to 6 processing shape 7 initial hole 8, 10, 12 insertion position designation mark 9, 11, 13 NC code insertion symbol

Claims (1)

(57) [Claims] 1. A machining shape defining step for defining a machining shape on a screen, and an insertion position of an NC code to be inserted into a machining program generated from the defined machining shape is designated on the machining shape displayed on the screen. Insertion position specification step to be performed and the position specified at or near the displayed position
An insertion symbol display step of displaying an insertion position designation mark indicating that there is a position and an NC code insertion symbol representing an NC code to be inserted at the designated position in accordance with the machining shape displayed on the screen; N
A machining program creating step of creating a machining program in which an NC code is inserted based on designation of C code insertion.