JPH02122303A - Numerical controller for external form working machine - Google Patents

Abstract

PURPOSE:To set a writing program to be written into an input medium with use of the data on the X and Y axes only and to attain the control of a three- dimensional axis by preparing a sizing drive control part where the data on a Z axis is preset. CONSTITUTION:An input part 1a reads a data medium where the diameter of a working tool and the start point, the relay point (flexion point) and the end point of a working form are successively written. Based on the data read by the part 1a, an X/Y axis drive control part 2a produces the control commands for an X axis drive part 3a and a Y axis drive part 3b with the X and Y data commands and revolve the X and Y axes to drive an X/Y table. Thus the working is started for the external form of a printed circuit board. Then the coordinate data on the Z axis written into a memory part of a sizing drive control part 5 is read with the working end signal of the part 1a. The part 5 gives a command to a Z axis drive part 3c and moves a cutter head up. Thus a cutter is pulled out of the circuit board. As a result, the three- dimensional axis control is attained without incorporating the data on the Z axis into a program which is prepared based on the coordinate data on both X and Y axes.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a numerical control device for an external processing machine, and in particular,
The present invention also relates to a numerical control device for a contour processing machine having a Z axis.

[Prior art] Conventionally, this type of numerical control device for external processing machines (hereinafter referred to as numerical control device) has been attached to machine tools such as die-sinking milling machines or laser processing machines, and has been used to process molds and complex shapes. It was used for plate parts.

FIG. 2 is a block diagram of a conventional numerical control device. This numerical control device includes an input section 1 that reads machining data, and an X-Y axis that controls the rotation of an X-axis drive section 3a, a Y-axis drive section 3b, or a two-axis drive section 3c based on commands from this input section.
-Z-axis drive control section 2.

For example, when processing the external shape of a printed wiring board using this numerical control device, input the X, Y, and Z coordinate data from the starting point to the final point of the external drawing to be processed into the input section, and use the commands of this data to an X-axis drive section 3a attached to each of the X-axis and Y-axis of the XY child table and the Z-axis that drives the cutter head to which the cutter is attached;
Machining was performed by controlling the rotation of the Y-axis drive unit 3b or the Z-axis drive unit 3C.

[Problem to be solved by the invention]

In the conventional numerical control device described above, it is necessary to input three-dimensional data even in the case of two-dimensional processing such as external processing of a printed wiring board. This is because it is necessary to input Z-axis coordinate data for driving the cutter head in order to cause the cutter to bite into or pull out of the Bumlint wiring board at the beginning and end of machining. Therefore, when creating a machining data program, Z-axis data must also be added to the program, which is a hassle, and the machining data program is not only large.

An object of the present invention is to provide a numerical control device that can control three dimensions without incorporating Z-axis data into a program based on X- and Y-axis coordinate data.

[Means to solve the problem]

A numerical control device for a contour machining machine according to the present invention includes an input section that reads data from a data medium, and a drive control section that controls a drive section of each of a plurality of machining axes of the contour machining machine using the data. In the numerical control device, a fixed-size drive control unit that drives one of the machining axes by a predetermined drive amount that is set in advance at the time when reading the data starts or ends reading the data. It consists of:

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a numerical control device showing one embodiment of the present invention. This numerical control device includes an input section 1a for inputting X-axis and Y-axis data, and a sizing drive control section 5 having a storage section such as a ROM for storing Z-axis data.
This means that we have the following. Other than that, it is the same as before.

The operation of this numerical control device is as follows: First, the diameter of the processing tool,
The input unit 1a reads the data medium in the order of the starting point, intermediate point (bending point), and ending point of the processed shape. The sizing drive control section 5 operates according to a signal from the input section 1a at the time of starting machining, and commands the Z-axis moving section 3c to rotate based on the data input to the storage section of the sizing drive control section 5. This causes the cutter head attached to the Z-axis to descend and begin drilling.

Next, depending on the data read by the input section, X
Based on the commands of the data of
Rotate the axis and Y axis to drive the XY child table. As a result, processing of the outer shape of the printed wiring board begins.

Next, the Z-axis seating surface data written in the storage section of the sizing drive control section 5 is read in response to the machining end signal from the input section 1a, and the sizing drive control section 5 commands the Z-axis drive section to operate the cutter head. Lift up and remove the cutter from the printed wiring board.

By doing this, you can avoid incorporating Z-axis data into the X-axis and Y-axis data programs.
There is an advantage that it is only necessary to store the data for the Z-axis in the sizing drive control section in advance.

[Effects of the Invention j] As explained above, the present invention is capable of incorporating a program to be written into an input medium with only X-axis and Y-axis data by providing a sizing drive control unit in which Z-axis data is preset. This has the effect of providing a numerical control device for a contour processing machine that can control three-dimensional axes.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a numerical control device showing an embodiment of the present invention, and FIG. 2 is a block diagram of a numerical control device showing a conventional example. 1.1a...input section, 2...x-y-z axis drive control section, 3a...X-axis drive section, 3b...Y-axis drive section, 3
C...Z-axis drive unit, 4...Outline processing machine body, 5...
- Sizing drive control section.

Claims (1)

[Claims] In a numerical control device for a contour machining machine, which has an input section that reads data from a data medium, and a drive control section that controls a drive section of each of a plurality of machining axes of the contour machining machine based on the data, reading of the data is started or read. A numerical control device for an external shape machining machine, comprising: a fixed-size drive control unit that drives one of the machining axes by a predetermined drive amount set in advance at the time of completion of the machining.