Cutting direction input method in automatic programming

Details Cutting direction input method in automatic programming Cutting direction input method in automatic programming

1984-11-28

1987-02-17

Ruggiero, Joseph

Boots, shoes, and leggings

318568, 340709, 364191, 364474, 364475, G06F 1546

Patent

active

046444602

DESCRIPTION:

BRIEF SUMMARY
CROSS-REFERENCE TO RELATED APPLICATION

This application is related to my U.S. application Ser. No. 680,252 filed Nov. 28, 1984.


BACKGROUND OF THE INVENTION

This invention relates to a cutting direction input method in an automatic programming apparatus for creating an NC tape (NC data). More particularly, the invention relates to a cutting direction input method in which a path trajectory is displayed on a cathode-ray tube by using previously created path data, and a cutting path is entered by using a cursor.
A variety of automatic programming units have recently been put into practical use for the purpose of creating NC tapes (NC data) in a simple manner. With these automatic programming units, path data specifying a path can be simply created. NC data for a path are created by providing an automatic programming unit with successive inputs of shape data along a path in a cutting direction while a design drawing is observed. Accordingly, in the prior art, the shape data must be entered by following the actual cutting direction even though there may be cases where, depending upon the design drawing, it is easier to enter the shape data in a direction opposite to that of the actual cutting direction. With the conventional method, therefore, entry of the shape data cannot be carried out with facility.


SUMMARY OF THE INVENTION

It is an object of the present invention to provide a cutting direction input method for automatic programming, in which shape data can be entered without relation to the actual cutting direction while one views a design drawing, with the result that the data input can be performed while one views the design drawing in a direction which facilitates the input of the shape data, the data input being realized in a simple manner.
Another object of the present invention is to provide a cutting direction input method in automatic programming, in which a path trajectory is displayed on a display screen on the basis of entered data and a cutting path is entered by designating a path starting point side or end point side with a cursor.
The present invention provides a machining direction input method which includes displaying a path trajectory comprising a number of path blocks on a display screen by using path data, indicating one of a path starting point side and path end point side by a cursor, and entering cutting direction by operating a cutting direction input switch when the path starting point side is being indicated by the cursor in a case where cutting is to be performed from the path starting point toward the path end point, and operating the cutting direction input switch when the path end point side is being indicated by the cursor in a case where cutting is to be performed from the path end point toward the path starting point.


BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram of a path trajectory and is useful in describing the method of the present invention;
FIG. 2 is a block diagram of an embodiment of a circuit for carrying out the method of the present invention;
FIG. 3 is a block diagram of the cursor pointer 105i of FIG. 2;
FIG. 4 is a diagram of an operator's panel; and
FIG. 5 is a flowchart for processing in accordance with the method of the present invention.


DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

In FIG. 1, P.sub.1 .fwdarw.P.sub.2 .fwdarw.P.sub.3 . . . .fwdarw.P.sub.16 represents a path trajectory, and CSR denotes a cursor. The path trajectory is displayed on a display unit 105 by using path data previously created and stored in a memory 101 (FIG. 2). It should be noted that the path data are created based on shape data entered without relation to actual cutting direction.
When a mode selection switch 102a (FIG. 4) on an operator panel 102 is set to a cutting direction input mode and a start button 102b is pressed, a processor 103 executes processing for path trajectory display under the control of a control program stored in a ROM 104. Specifically, the processor 103 reads path data out of the memory 101 one block at a time in successive fash

REFERENCES:
patent: 3757095 (1973-09-01), Kiwiet
patent: 4490781 (1984-12-01), Kishi et al.
patent: 4495491 (1985-01-01), Postl
patent: 4530046 (1985-07-01), Munekata et al.
patent: 4530061 (1985-07-01), Henderson et al.

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