JPH0793012A - Numerical control unit for working machine - Google Patents

Abstract

PURPOSE:To expand the use of a working machine such as a laser beam machine, an electron beam machine, and an electric discharge machine by great ly reducing the trouble and time required to input shape data on an article to be worked. CONSTITUTION:This control unit is equipped with a data readout part 10 which selectively reads data regarding the shape of the article to be worked out of a CAD data file 20 used to design the article, a 1st data file 11 which contains the read-out data, and a shape data generation part 13 which reads out the stored data in order, and discards and rearranges data according to working order and paths to generate the shape data necessary for the working of the article. Then, the working machine is numerically controlled through the operation of a working machine control part 16 based on the data read out of a 2nd data file containing the obtained shape data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical control device for a machining machine which program-controls a machining head such as a laser machining machine, an electron beam machining machine, an electric discharge machining machine according to a predetermined machining sequence and machining path.

[0002]

2. Description of the Related Art A laser beam machine which uses high energy of a laser beam can be applied to various processes such as welding, drilling and cutting, and is complicated and difficult to process with other types of machines. It is in the spotlight as it can be applied to the shape. Processing by this type of laser processing machine is generally performed by numerical control according to a predetermined processing sequence and processing route.

The control device that controls this control stores shape data indicating the shape of an article to be processed in a data file, and sequentially reads out predetermined data in the stored data according to the processing order, and the read data. Accordingly, the operation of moving the processing head is performed.

[0004]

However, the shape data stored in the data file of the control device is input by operating the operating means such as the keyboard while referring to the drawing of the target article. However, there is a problem in that this input requires a lot of labor and time, and an operator who performs an input operation requires a great deal of labor.

On the other hand, in recent years, a CAD (Computer Aided Design) system has been widely used for improving the efficiency of design by replacing processes such as various calculations, algorithm processing, and data retrieval in designing various industrial products with computer processing. It is popular. In an article using such a CAD system in the design stage, the data file in the CAD system can be referred to when the shape data is input to the control device, and the input data described above is used by using the reference data. By performing the operation, it is possible to reduce the labor and time required for this input. However, even in this case, the labor load for inputting the shape data is large, and this makes the use of the laser processing machine particularly for small-volume production of other products, that is, for processing a small number of articles having different shapes. It is a hindrance factor.

The above problems occur not only in laser beam machines, but also in electron beam machines, electric discharge machines, and other machines that do not require tool replacement according to the machined part. The solution of is longed for.

The present invention has been made in view of such circumstances, and drastically reduces the labor and time required to input the shape data of the article to be processed, and the laser processing machine, the electron beam processing machine, and the electric discharge machining. An object of the present invention is to provide a numerical control device for a processing machine, which can contribute to the expansion of applications such as a machine.

[0008]

A numerical control device for a processing machine according to the present invention determines a processing order and a route in accordance with shape data corresponding to an article to be processed, and moves a processing head according to the determined content. In a numerical control device of a processing machine, means for selectively reading data related to the shape of the article from a CAD data file used for designing the article, a data file storing the read data, and the data Means for creating the shape data based on the data stored in the file.

[0009]

In the present invention, the CA inside the CAD system is
Only the data relating to the shape of the article to be processed is selectively read from the D data file, stored in the data file, and the stored data is sequentially read out, for example, displayed on the display, and this display is displayed. The data is discarded and rearranged in accordance with the operator's operation while visually observing, the shape data necessary for the processing is created, and the processing order and the route are determined according to the shape data.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a block diagram showing the configuration of a numerical control device for a processing machine according to the present invention. As shown in the figure, the numerical controller 1 according to the present invention includes a data reading section 10, first and second data files 11 and 12, a shape data creating section 13,
The display unit 14 using a CRT display or the like, the operation unit 15 using a keyboard or the like, and the operation of a processing machine (laser processing machine, electron beam processing machine, electric discharge processing machine, etc.) not shown, specifically, And a processing machine control unit 16 for controlling the movement of the processing head.

The data reading unit 10 is a CAD system 2
The internal CAD data file 20 is connected so that the stored data can be read out. The CAD data file 20 contains
Various data determined in the design of the article to be processed are stored, and the data reading unit 10 selectively selects the data necessary for processing, that is, the data related to the shape, from these data. A read operation is performed, and this read data is stored in the first data file 11.

Conventionally, when referring to CAD data, it is necessary for the operator to instruct removal of data unnecessary for processing, such as dimension lines, finishing symbols, corner processing symbols, etc., contained in this CAD data. Data reading unit 10
Since only the data related to the shape is read out, the artificial work for eliminating unnecessary data becomes unnecessary. The operation of the data reading unit 10 is performed according to a predetermined operation of the operation unit 15 according to the display on the display unit 14.

The shape data creation unit 13 reads data stored in the first data file 11 and discards and rearranges the data to create shape data necessary for machining. Specifically, the read data is displayed on the display unit 14
The data is discarded according to the operation of the operation unit 15 performed according to the display result, and necessary data is rearranged in a predetermined processing order to create shape data. The created shape data is stored in the second data file 12
It is designed to be stored in.

When creating the shape data as described above, the operator visually recognizes the data sequentially displayed on the display unit 14,
It is only necessary to give an instruction to discard the respective data by operating the operation unit 15, and since it is not necessary to input the numerical values of the data that was conventionally performed, a great reduction in the time and labor required for the input operation is achieved. , The labor burden on the operator can be significantly reduced.

The processing machine control unit 16 uses the second data file.
This is the part that performs the publicly known control operation that reads the shape data stored in 12 and issues an operation command according to this data to move the processing head of the laser processing machine, electron beam processing machine, electric discharge machine, etc. Thus, the article to be processed has a desired shape and is processed.

FIG. 2 is an explanatory diagram showing the flow of processing in the numerical controller 1. The CAD system 2 designs an article to be processed (step 1), and the result of this design is stored in the CAD data file 20 (step 2). In the present invention, of the data stored in the CAD data file 20, only the data relating to the shape of the article is read (step 3), and this read data is the first data.
Stored in the data file 11 of FIG. 1 and then, the stored data is discarded and rearranged based on the definition of the machining shape and the definition of the machining path to create shape data (step 4). The second data file 12
To store.

Step 3 in the above processing is performed by the operation of the data reading section 10, and similarly, step 4 is performed by the operation of the shape data creating section 13. The shape data stored in the second data file 12 includes information on the processing order and the processing path, and the processing machine control unit 16 controls the processing machine by program control according to this shape data. It should be noted that the definition of the machining shape and the machining path is performed separately from the above-described processing by the input operation of the operation unit 15, and is preset in the shape data creating unit 13.

[0018]

As described above in detail, the numerical control device for a processing machine according to the present invention uses the C used for designing an article to be processed.
Since the data related to the shape is selectively read from the AD data file and stored in the data file, the standard of numerical control is achieved by an easy operation of sequentially reading the stored data and designating discard of the read data. It is possible to obtain the shape data to be obtained, and it is possible to greatly reduce the labor and time conventionally required for inputting the shape data, and to apply to the small-volume production of other types such as laser processing machines, electron beam processing machines, It can contribute to the expansion of applications of electric discharge machines.
The present invention has excellent effects.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a numerical control device for a processing machine according to the present invention.

FIG. 2 is an explanatory diagram showing a flow of processing in a numerical control device for a processing machine according to the present invention.

[Explanation of symbols]

 1 Numerical control device 2 CAD system 10 Data reading unit 11 First data file 12 Second data file 13 Shape data creation unit 14 Display unit 15 Operation unit 16 Processing machine control unit 20 CAD data file

Claims (1)

[Claims] 1. A numerical control device for a processing machine, which determines a processing sequence and a route according to shape data corresponding to an object to be processed and moves a processing head according to the contents of the determination, which is used for designing the object. A means for selectively reading data related to the shape of the article from the CAD data file, a data file for storing the read data, and means for creating the shape data based on the stored data of the data file. A numerical control device for a processing machine, which comprises: