JPH01296305A - Method for modifying nc program by using set-up information - Google Patents

Abstract

PURPOSE:To modify the content of NC working program about a specific NC program by using the set-up information of coordinate rotating information corresponding to the inclination of a work obtained by measuring the fit state of the work. CONSTITUTION:The work offset number of an NC program becomes '-N9553;(G68X-, Y-, R-)'-'G55J3-G69'. The 'G68X-, Y-, R-' means a coordinate rotation executing position indicating the rotation of the work in an X, Y coordinate system. The coordinate rotation executing position is found from data obtained by measuring the work on a table for alignment and modifies the NC program.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a modification in which an NG IU program is created using an interactive automatic programming system, such as a machining center, by modifying the contents of the NG IU program according to the installation state of a workpiece using first setup information. It's a method.

NC programs for machining centers, etc. are often created using interactive automatic programming systems.
The number of NC machine programs registered in the NG machine program memory also tends to increase, and it is important to find out how quickly the setup information necessary for machining can be extracted, edited, and displayed for a specific NC program extracted from this NC machine program list. However, the key point in the 9-setup work is how to modify the contents of the NC program in accordance with the installation state of the workpiece.

The present invention solves the above problem, and uses setup information of coordinate rotation information according to the inclination of the workpiece obtained by measuring the mounting state of the workpiece to perform an NC program on a specific NC program.
The purpose of this invention is to provide a method for modifying the contents of a Canadian program.

That is, for a specific NC program, a workpiece measurement step of measuring the workpiece arrangement on the table in setup mode;
This is a method for correcting an NC program using setup information, which comprises a step of processing workpiece inclination information obtained from the workpiece measurement step, and a step of correcting the contents of the NC program according to the installation state of the workpiece based on the workpiece inclination information. .

Hereinafter, the present invention will be explained with reference to embodiments shown in the drawings.

Fig. 1 is a block diagram of a device that implements the setup correction method of the present invention, Fig. 2 is a screen diagram showing a part of a specific NC program, and Fig. 3 shows a method of correcting an NC program using setup information. It is a flowchart figure.

First, in FIG. 1, 10 is a character 2 figure display means,
It consists of a CRT display section 1 and a CRT control section 2, and memory data can be displayed on the screen by operating a keyboard and soft keys 3, which is a data input/output means 40. The central processing unit 20 (CPU), in addition to the character 2 figure display means and data input/output means, also controls the tool file memory section M.
l.

Tool offset value memo 9 copies M2. NG Canadian program memory section M3. It is connected to the NC control section 4 and the like, and is operated by key operations on the data input/output means 40.

Each part Ml, M2. Extract and process the information of M3 and display it on CRT
NC of the machine tool control means 50 based on the Canadian program
The operation of the machining center 5 is controlled via the control unit 4.

As mentioned above, prior to controlling the operation of the machining center 5 via the NC control section 4 of the machine tool control means 50 based on the specified NG machine program in the NC program memory section M3, the NC program is executed based on the setup information. The modification work will be explained based on the N and C programs and flowcharts shown in FIG. 2.3.

As a prerequisite, the work offset number of the NC program shown in Figure 2 is "...N9553; (G68X
+, Y +, R-) J KararG55J:3~G
It becomes 69J. The above r (G68X +, Y −.

R-)J indicates the coordinate rotation execution position indicating the rotation of the workpiece in the X, Y$ reference system. This coordinate rotation execution position is determined from data obtained by centering and measuring the workpiece on the table, and the NC program is corrected. That is, rNC
"Creating a program" Now to perform coordinate rotation on the CRTJ: screen.

With this shaking motion, the work shape is selected as shown in Figure 3.
@Fist J The screen of Fist J is drawn, and a system is established to perform centering work on the XY plane. Here, when the operator ``places the reference tool on the measuring instrument and presses the soft key'', the automatically calculated value is automatically registered.

This flowchart will be further explained with reference to FIG.

When the centering work is finished, the rNC mode automatically switches, and from the work offset number rN9552:---,
N9553: Search (068X+, Y+, R-) from the program J, rN9552;..., N955
3 ; (G68X-, Y-, R-) If J is found, (G6
8Xx, Yy, Rθ), N9552; ...e
, N9553; (G68Xx.

Modify the NC program to ``Yy, Rθ)''. below,[
The above correction work is repeated until the N95 Kakushiken 1 is no longer found, resulting in r end 1. To summarize the advantages of the above method.

■For existing NC programs, apply coordinate rotation to each workpiece during setup.

■When there are multiple workpieces, the workpiece coordinates can be rotated separately.

■It is OK to modify NC programs created elsewhere.

According to the present invention, for a specific NC program, a method is provided for modifying the contents of the NG program using setup information of coordinate rotation information corresponding to the inclination of the workpiece obtained by measuring the mounting state of the workpiece. Even if the workpiece is rotating in the X-Y coordinate system, the correction can be made by easily attaching the workpiece to the centering setup information of the workpiece.
C Canada nib.

This is done by automatically correcting the contents of the program.

This automatic modification of the NC program is executed for each specific NC program for each work.

[Brief explanation of the drawing]

, FIG. 1 is a flowchart showing a method for modifying a device program to implement the setup modification method of the present invention. 1... CRT display section, 2... CRT control section, 3.
...Keyboard & soft keys, 4...NC control section, 1
0...Character 9 figure display means, 16...Screen display,
20... Central processing unit 20 (CPU), 30...
・Memory means, Ml...Tool file memory section, M2
. . . Tool offset value memory section, M3 .
50...Machine tool control 31″f'-stage.

Claims (1)

[Claims] 1. Regarding the specific NC program, a workpiece measurement step that measures the workpiece arrangement on the table in setup mode, a workpiece inclination information processing step obtained from the workpiece measurement step, and the contents of the NC machining program based on the workpiece inclination information A method for modifying an NC program using setup information, which consists of a process of modifying the program according to the installation state of the workpiece.