Method of automatically creating numerical control data in one o

Details Method of automatically creating numerical control data in one o Method of automatically creating numerical control data in one o

1984-06-27

1986-05-06

Smith, Jerry

Boots, shoes, and leggings

364171, G05B 19403

Patent

active

045876088

DESCRIPTION:

BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATION

The subject application is related to copending U.S. patent application having U.S. Ser. No. 626,880.


BACKGROUND OF THE INVENTION

This invention relates to a method of automatically creating numerical control data and, more particularly, to a numerical control data automatic creation method wherein an NC tape format can be changed with ease.
A numerical control apparatus (NC apparatus) controls a machine tool on the basis of commanded numerical control data (NC data) in order to machine a workpiece in conformance with a command. The NC data (also referred to as an NC tape) is created by programming performed by a programmer, or by a unit for creating NC data automaticaly. With an NC data automatic creation unit, even NC data for a complicated metal mold can be created. The NC data automatic creation unit is designed so that NC data can be created simply and in a short period of time.
In the conventional method of creating NC data, the NC tape format cannot be readily changed. In other words, the conventional NC data creation method can create an NC tape in accordance with one format but not in accordance with another. Therefore, when an NC tape format is desired to be changed in order to add a special function to a machine tool or to have a machine tool execute control tailored to a particular user, the user must purchase a separate NC data creation unit for the new NC format. Consequently, the user is compelled to prepare an NC data creation unit whenever the format of the NC data changes, and the maker of the NC data creation unit must supply NC data creation units having different formats.


SUMMARY OF THE INVENTION

Accordingly, an object of the present invention is to provide an automatic NC data creation method wherein NC tapes can be created for different formats.
Another object of the present invention is to provide an automatic NC data creation method wherein an output NC tape format can be changed with ease.
A further object of the present invention is to provide an automatic NC data creation method through which NC tapes having different formats can be created by a single NC data automatic creation unit, so that NC data creating units need not be prepared for different formats.
The present invention provides an automatic NC data creation method in which an NC tape format can be easily changed. The method includes the steps of providing a number of parameters used for specifying a machining pattern and a number of function codes designated by the parameters for creating numerical control data; storing the correspondence between each of the function codes and a numerical control data output format; and storing the correspondence between each parameter and one or more function codes designated by the parameter. The method also includes generating the parameters sequentially in accordance with NC machining, and creating numerical control data using function codes designated by the parameters. According to the present invention, an NC data format can be changed with ease by changing a function code designated by a parameter.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram illustrating an embodiment of the present invention;
FIG. 2 is a flow chart for the processing of the present invention;
FIGS. 3(A) and 3(B) illustrate the relation between various parameter numbers and their meanings according to the present invention;
FIG. 4 illustrates a machining pattern for a turning machine;
FIG. 5 illustrates the correlation between parameter numbers and various function codes; and
FIG. 6 illustrates the correlation between function codes and NC data output formats.


DESCRIPTION OF THE PREFERRED EMBODIMENT

FIG. 1 is a block diagram illustrating an embodiment of the present invention. Numeral 101 denotes a ROM which stores a control program for NC data creation, reference numeral 102 identifies a processor for executing predetermined processing under the control of the control program, and 103 a machining pattern information output unit for specifying

REFERENCES:
patent: 4490781 (1984-12-01), Kishi et al.

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