JPS62214405A - Nc data generating method - Google Patents

Abstract

PURPOSE:To facilitate the NC data generation processing by using arrow keys or arrow key items to input the start-up direction. CONSTITUTION:A CAD/CAM system for progressive mold design consists of a processor 11a, a graphic display device 12, a tablet 13, a keyboard 14a, a large-capacity storage device 15 where NC information or the like is stored, etc. A menu table 13b is stuck to a tablet surface 13a of the tablet 13, and prescribed items written on this table 13b are picked up by a mouse 13c to input various items and data. Then, dies shapes DF1-DF3 are displayed on the display device, and a start point PS of wire cut working is set to a prescribed dies shape. An arrow key or the like on the keyboard 14a is depressed or an arrow key item on the menu table 13b is used to input the start-up direction, thus generating NC data.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for creating NC data for die processing, and particularly to a method for creating NC data for die processing formed on a die plate of a progressive die.

<Prior art> 11 In a CAD/CAM system for designing a remittance mold, product placement, number of stages, pitch, etc. are designed interactively based on the input product shape (blank layout processing), and then punch shape or punching is performed. In addition to automatically designing the shape (strip layout processing), each plate constituting the progressive die is automatically designed using the mold concept processing.

Now, among the plates, a die must be formed on the goo plate to receive the punch.

Then, such a die is machined by a wire-cut electric discharge machine. This means that when designing the goo plate, it is necessary to input data necessary for creating NC data for die machining with a wire-cut electrical discharge machine.

Now, in order to wire cut a die, it is necessary to (a) specify the wire cut start point inside the die shape, and (b) specify the external shape element of the die to which the wire cut start point should be directed first. .

For this reason, in the past, the die shape was displayed on a display screen, the wire cut start point was specified, and the element to which the die should be directed first was specified using a cursor.

<Problems to be Solved by the Invention> However, in the conventional method, if the Goo shape is elongated, it may be difficult to specify one external element with a cursor. In such a case, it is necessary to enlarge the shape of the goo and then specify it with a cursor, which is cumbersome to operate.

From the foregoing, it is an object of the present invention to provide an NC data creation method in which it is possible to easily specify the element to be directed to first from a wire cut start point, and to create NC data for die processing using the input data.

Means for Solving the Problems〉 Figure 1 shows a CA D for progressive die design to which the present invention can be applied.
FIG. 2 is a block diagram of the /CAM system.

11a is the processor, 11b is the ROM, lie is the RA
M, 12 is a graphic display device, 13 is a tablet device, 14a is a keyboard, 14b is an X-Y plotter, 15 is a large-capacity storage device that stores various data files for progressive die design, automatically created NC information, etc. It is.

CRT is display screen, GF is product shape, DFI~
DF3 has a punched shape.

Function> Display the punched shapes (goo shapes) DFI to DF3 on the display screen CRT, and instruct the predetermined goo shape,
Set the start point P9 of the wire cutting process inside the Goo-shaped DPI, and then input the startup direction by pressing the arrow keys -2↓, ←, ↑, etc. on the keyboard 14a, or enter the start point as indicated in menu table 13bζζ. Specified arrow key items →, ↓, ←, and ↑ are input from the tablet device 13 by specifying them with the mouse 13c, and the processor lla uses these input data and die shape data to create NC data for wire-cut electrical discharge machining of the die. do.

<Example> Figure 1 is a CAD diagram for progressive die design to which the present invention can be applied.
FIG. 2 is a block diagram of the /CAM system.

11a is a processor, 11b is a ROM, and lla is a RAM
, 12 is a graphic display device, 13 is a tablet device, 14a is a keyboard, 14b is an X-Y plotter, 15 is a large-capacity storage device that stores various data files for progressive die design, automatically created NC information, etc. It is.

CRT is display screen, GF is product shape, DFI~
DF3 has a punched shape, that is, a goo shape.

A menu table 13b is pasted on the tablet surface 13a of the tablet device 13, and various items and data can be entered by clicking on predetermined items written on the menu table with the mouse 13c. .

FIG. 2 is an overall view of this menu table, which includes a product shape input section T1, a blank layout section T2, a strip layout section T3, a mold concept section T4, a processing data output section T5,
Drawing output section T6, list output section T7, various data setting section T
8. Drafting processing section T9, alphabet/symbol input section T1
0, numerical value/type shape input section T11, shape conversion section T12, parts menu mT13, list menu part T14, Q[i
A portion of the menu 715 and the like are provided.

The mold concept section T4 is provided with a "WC start point" item M1 for setting a wire cut start point, and the numerical value/shape input section Tll is provided with an arrow key item (
=, ↓, ←, i, etc.) M2 is provided. Note that the keyboard is also provided with arrow keys.

FIG. 3 is a partially enlarged view of the die plate design screen, and FIG. 4 is a flowchart of the process of the present invention.
is the goo shape, GF is the product shape, and P is the wire cutting start point.

(1) Gui-shaped DFI, DF2. automatically designed by strip layout processing. ... is being drawn on the CRT of the graphic display device together with the part shape GF (see Figures 1 and 3), the mouse 1
After picking the mold concept section T4 in step 3c, pick the "nWC start point" item M1.

(2) By picking the "WC start point" item M1, the processor lla asks the CRT which shape it is.

(3) In response to the question, pick a predetermined die shape DPI using the mouse 13c.

(4) By picking the Gui shape DPI, the processor
Ask RT about the wire cut start point.

(5) Thereby, the mouse 13c is moved to position the cursor on the CRT at a predetermined wire cut start point PS, and the coordinate values of the point are input.

(6) Next, the processor queries the CRT about the direction in which the wire should be moved from the wire cut start point PS (startup direction).

(7) When asked about the startup direction, select the startup direction by pressing the arrow key → on the keyboard 14a.

Enter using ↓, -2↑ or menu table 13b
Specify a predetermined arrow key item M2 written in 2 with the mouse 13c to input it (if the direction of the dotted line arrow in FIG. 3 is the startup direction, specify the ↓ key item).

(8) Processor lla creates NC data for wire cut electrical discharge machining using the data input in the above steps (wire cut start point P8, startup direction) and the shape data of the picked die shape DPI, and The information is stored in the storage device 15.

<Effects of the Invention> According to the present invention, since the startup direction is input using arrow keys or arrow key items, it is possible to easily and accurately determine the external shape element to which the wire first goes from the wire cut start point. This makes it easier to create NG data.

[Brief explanation of drawings]

Figure 1 shows a CAD/CAD system for progressive die design to which the present invention can be applied.
FIG. 2 is a block diagram of the CAM system, FIG. 2 is a menu table, FIG. 3 is a partially enlarged view of the GUI plate design screen, and FIG. 4 is a flowchart of the processing of the present invention. 11m...Processor, 12...Graphic display device, 13...Tablet device, 14a...Keyboard, CRT...Display screen, GF...Product shape, DFI~DF3...Punched shape (Gui shape) Patent applicant
Agent for FANUC Co., Ltd.
Patent Attorney Chiki Saito Figure 1

Claims (2)

[Claims] (1) In a method for creating NC data for machining a die processed by a wire-cut electrical discharge machine, the die shape is displayed on the display screen, the start point of wire-cut machining is set inside the die shape, and then the startup direction is set. A method for creating NC data for die machining, the method comprising: inputting the following data, and creating NC data for wire-cut electric discharge machining a die using these input data and die shape data. (2) The method for creating NC data for die processing according to claim (1), wherein the startup direction is input using arrow keys.