JPH0639676A - Data generating device for machining metal mould relief part by nc machine tool - Google Patents

Abstract

PURPOSE:To generate a line data for machining the relief part of a metal mould rapidly and easily by providing a three-dimensional offset processing means to offset three-dimensionally relief process area data in the specified direction, and at the same time, providing a three-dimensional offset process means to store the offset data. CONSTITUTION:A relief process area data extracting means 7 to extract the relief process area data by the data from a digitizing data process means 4 and relief process area line data process means 6 is provided. Furthermore, a three-dimensional offset process means 8 to offset the relief process area data three-dimensionally and to store it by the data from a process condition data process means 5 and the relief process area data extracting means 7 is provided. Then, a relief process line data is generated and stored in a relief process line data process means 9 by the data from the process condition data process means 5 and the three-dimensional offset process means 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for generating data for machining a relief portion of a die in an NC machine tool.

[0002]

2. Description of the Related Art In a press die, as shown in FIG. 8, the pressure of the press machine (17) tends to concentrate on the uneven portion (H) of the die,
The product (16) in that portion may be extremely thin or may be torn. Therefore, in order to avoid such a situation,
A means for reducing the concentration of pressure is adopted by forming a relief portion (N) shown by hatching in FIG. 3 on the uneven portion. Then, a tool for processing the relief portion (shown as (13) in FIG. 7) having a configuration shown in FIG. 5 as a device for obtaining a trajectory drawn by the center point of the tip portion (hereinafter referred to as relief portion processing line data) Is used, and the machining data of the relief portion is created through the following three steps (a flowchart of each step is shown in FIG. 6). When inputting, outputting and inputting each file name of the relief processing area extraction range and the shape data of the mold with the keyboard (2) and designating the relief processing area with the tablet (3), these data are NC data creation means ( The shape data (indicated by (D1) in FIG. 7) in the specified relief processing area is input to the NC data creating unit (14a) constituting 14) and extracted. If you enter the machining condition data such as the radius of the relief machining tool (indicated by (R) in Fig. 7), machining method, machining direction, depth of cut, spindle speed, feed rate, etc., and the machining area data,
These data are input to the processing condition data input section (5a) constituting the processing condition data processing means (5), and are stored in the processing condition data memory (5b) in advance together with the NC.
NC data creation unit (14a) constituting data creation means (14)
And the shape data in the machining area is three-dimensionally offset in the predetermined direction by the radius (R) of the machining tool (shown by (D3) in FIG. 7). When the three-dimensionally offset data is input, the NC data creating means (14) uses the intersecting line machining tool data (see FIG. 7).
(Indicated by (19)) is created, and this data is used as the relief processing line data. The radius (r) of the tip of the intersecting line machining tool data is smaller than the radius (R) of the relief machining tool by the relief machining amount (A) .In actual machining, the radius (R) tool (13) To process. As described above, each process is performed independently, and by repeating these processes by the number of relief processing parts,
I was seeking line data for each relief processing.

[0003]

It takes a lot of time to repeat each of the above steps, and the operator's burden is heavy.
Moreover, this is especially true for a die having a complicated shape that requires a large number of relief processing portions.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a device capable of designating machining data of a plurality of relief machining parts at once and capable of quickly and easily generating relief machining data. Is. That is, the configuration of the apparatus includes digitizing data processing means for inputting and storing mold data of a die, processing condition input means for inputting processing conditions, and processing condition data output from the processing condition input means. Machining condition data processing means for inputting and storing, relief machining area designating means for designating relief machining area, relief processing based on each data output from the mold data and machining condition input means and relief machining area designating means Escape processing area line data generating means for generating and storing area line data, and extracting and storing escape processing area data based on each data output from the digitizing data processing means and escape processing area line data generating means. Escape processing area data extraction means, processing condition data processing means and Three-dimensional offset processing means for generating three-dimensional offset data of the relief processing area data in a predetermined direction based on each data output from the escape processing area data extraction means, and storing the offset data, and the processing. It is provided with a relief processing line data generating means for generating and storing the relief processing line data based on each data output from the condition data processing means and the three-dimensional offset processing means.

[0005]

The escape processing area data extracting means extracts the escape processing area data based on the mold data stored in the digitizing data processing means and the escape processing area line data stored in the escape processing area line data generating means. Further, the three-dimensional offset data is generated by the three-dimensional offset processing means based on the processing condition data and the escape processing area data stored in the processing condition data processing means. On the other hand, the processing condition data and 3
The relief processing line data is generated by the relief processing line data generation means based on the dimension offset data. That is, the relief processing line data can be generated only by inputting the mold data and the processing condition data and designating the relief processing range.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing a configuration of a data generating device for machining a relief portion of a die by an NC machine tool according to the present invention. The configuration of the present invention will be described below with reference to FIG. (1) is a mold data file that stores the original data such as the dimensions and shape of the mold measured by the measuring stylus and digitizer, (2) is the radius of the relief machining tool, machining method, machining direction, depth of cut, A keyboard, which is an example of a machining condition input means for inputting machining conditions such as a spindle rotation speed and a feed speed, and (3), a tablet, which is an example of a relief machining range region indicating means for designating a relief machining range, are shown. (4a) is the digitized data input section that inputs the data output from the mold data file (1), (4b) is the digitized data memory that stores the data output from the digitized data input section, and (5a) is the The machining condition input section for inputting the machining conditions output from the keyboard, (5b) is the machining condition data memory for storing the data output from the machining condition input section, and (6a) is the mold data file (1) and Area line data input section for inputting area line data output from the keyboard (2), (6c) area line data memory for inputting and storing data output from the area line data input section, (6b) keyboard (2) and tablets
The area line data creation units for creating the area line data by inputting the data output from (3) are shown respectively. (7
(a) is an escape processing area extraction unit that inputs data output from the digitizing data memory (4b) and area line data memory (6c) to extract the escape processing area, and (7b) is output from the escape processing area extraction unit. Escape processing area data memory for inputting and storing data to be stored, (8a) calculates the three-dimensional offset amount by inputting the data output from the processing condition data memory (5b) and the escape processing area data memory (7b). ,
A three-dimensional offset unit that generates data offset in a designated direction, (8b) is a three-dimensional offset data memory that stores the data output from the three-dimensional offset unit, and (9a) is a processing condition data memory (5b). And an escape processing line data generation unit that inputs data output from the three-dimensional offset data memory (8b) and generates escape processing line data, and (9b) inputs data output from the escape processing line data generation unit. Relief processing line data memory for storing as shown in FIG. (10) is a relief processing line data memory (9b) and a three-dimensional offset data memory (8
b) and the relief processing area data memory (7b) inputs the data output from each and converts it into display data, the graphic display section, (11) inputs the data output from the graphic display section and displays it on the screen. CRT is shown respectively.

Next, the flow until the relief processing line data is generated will be described based on the flow chart shown in FIG. 2, the data creation principle diagram shown in FIG. 3 and the explanatory diagram of each data shown in FIG. First, using the keyboard (2), the digitized data file name, output file name, and escape processing area extraction line file name of the die that performs escape processing, the radius of the escape processing tool, the processing method, the processing direction, and the spindle rotation speed. Input machining conditions such as feed rate, relief machining amount, offset direction (presence or absence of reversal), and plate thickness amount. At this time, it is determined whether each input data is correct, and if it is incorrect, the data is corrected. Here, the shape data (D1) is input to the digitizing data input section (4a) which constitutes the digitizing data processing means (4) and stored in the digitizing data memory (4b). Then the tablet (3)
When the escape processing area (indicated by (E) in FIG. 4 (a)) is instructed by, the instructed data and the data input by the keyboard are used as the escape processing area line data generation means (6).
Is input to the area line data creating unit (6b) that forms the area line data in the specified area. At this time, the original data (measuring stylus (1
The data (D2) of the locus drawn by the center point of 2) is input to the area line data input unit (6a). Further, the data created by the area line data creation unit and the data input to the area line data input unit are input and stored in the area line data memory (6c).

The data stored in each of the digitizing data memory (4b) and the area line data memory (6c) is input to the escape processing area extracting section (7a) which constitutes the escape processing area data extracting means (7). At the same time, of the original data, the data in the designated area (hereinafter referred to as escape processing area data) is extracted and stored in the escape processing area data memory (7b).

On the other hand, the relief machining area data stored in the relief machining area data memory (7b) is stored in the machining condition data memory (5b) together with the data indicating the offset direction and the like, and the three-dimensional offset processing means (8). Make up 3
It is input to the dimension offset unit (8a). Then, the three-dimensional offset data (D
It is converted into 3) and stored in the three-dimensional offset data memory (9b). Here, (P) is the center point of the relief processing tool (13).

Next, a three-dimensional offset data memory (8b)
And each data stored in each of the processing condition data memory (5b) is input to the escape processing line data generating section (9a) which constitutes the escape processing line data generating means (9). Here, as shown in FIG. 4, corners (E1), (E1), ... (E1) are extracted for each line of the three-dimensional offset data, and escape processing line data is generated by connecting extraction points. It is stored in the relief processing line data memory (9b). In addition, the relief processing line data memory (9b) and 3
The data output from each of the dimension offset data memory (8b) and the relief processing area data memory (7b) is input to the graphic display unit (10) and converted into display data, and each display data is displayed on the CRT ( It is displayed in 11).

As described above, by simply calling each file with the keyboard, inputting mold data and the like, inputting the processing conditions, and designating the relief processing area with the tablet, the relief processing line data can be generated quickly and easily. can do. When there are a plurality of escape processing line data to be obtained, the same work can be obtained by simply repeating the same work.

[0012]

According to the present invention, it is possible to quickly and easily generate the line data for machining the relief portion of the die. Therefore, the burden on the operator is reduced. In particular, the effect becomes more remarkable as the number of escape portions increases.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a flowchart illustrating a process of generating escape processing line data.

FIG. 3 is a diagram illustrating a correlation between a relief processing portion and each data.

FIG. 4 is an explanatory diagram showing a relief processing instruction area and input data.

FIG. 5 is a block diagram showing a configuration of a conventional device.

FIG. 6 is a flowchart illustrating a process of generating conventional relief processing line data.

FIG. 7 is an explanatory diagram showing a relationship between a relief processing portion and an intersecting line processing position.

FIG. 8 is an explanatory view showing a process of pressing the uneven portion of the mold.

[Explanation of symbols]

1 ... Model data file, 2 ... Keyboard, 3 ... Tablet, 4 ... Digitizing data processing means, 4a ...
Digitizing data input section, 4b ... Digitizing data memory, 5 ... Machining condition data processing means, 5a ... Machining condition input section, 5b ... Machining condition data memory, 6 ... Relief machining area line data generating means, 6a. .Region line data input unit, 6b ... Region line data creation unit, 6c
..Region line data memory, 7 ... escape processing region data extracting means, 7a ... escape processing region extracting section, 7b
.Escape processing area data memory, 8 ... 3D offset processing means, 8a ... 3D offset section, 8b ... 3
Dimensional offset data memory, 9 ... Escape processing line data generating means, 9a ... Escape processing line data generating section, 9b ... Escape processing line data memory, 10 ...
Graphic display unit, 11 ... CRT, 12 ... Measuring stylus, 13 ... Relief machining tool, 14 ... NC data creating means, 14a ... NC data creating unit, 14b.
.NC data memory, 15 ... NC data display unit, 16
..Products, 17 ... Press machines, 18 ... Moulds, 19 ...
Crossover machining tool data, A ... Relief machining amount, B ... Offset amount, D1 ... Shape data, D2 ... Input data, D3 ... 3D offset data, D4 ... Relief machining line data, E ...・ Escape processing instruction area, E1 ・
・ Corner, H ・ ・ Roughness, N ・ ・ Relief processing part, P ・ ・ Center point of relief processing tool

Claims (1)

[Claims] 1. An apparatus for generating data for machining an escape portion of a die by an NC machine tool, comprising digitizing data processing means for inputting and storing die data of the die, and inputting processing conditions. Processing condition input means, processing condition data processing means for inputting and storing the processing condition data output from the processing condition input means, relief processing area designating means for designating a relief processing area, the mold data and processing Escape processing area line data generating means for generating and storing escape processing area line data based on each data output from the condition input means and escape processing area instructing means, the digitizing data processing means and escape processing area line data generation Extracting the relief processing area data based on each data output from the means And an offset machining area data extracting unit that stores the relief machining area data in a predetermined direction based on each data output from the machining condition data processing unit and the escape machining area data extracting unit. And a three-dimensional offset processing means for storing the above data, a data generating device for machining a relief part of a die by an NC machine tool.