Curve extracting apparatus and NC programming system for forming

Details Curve extracting apparatus and NC programming system for forming Curve extracting apparatus and NC programming system for forming

1991-07-11

1994-03-08

Smith, Jerry

Boots, shoes, and leggings

36447424, 36447429, 364191, G06F 1546, G06F 1540

Patent

active

052933210

ABSTRACT:
A curve extracting apparatus for extracting curves such as closed loops, open loops and hole groups from drawing data prepared with a CAD system, and an NC programming system for forming NC programs by directly utilizing curves which are extracted by the curve extracting apparatus. With such apparatus and system, it is unnecessary to perform complicated operations such as a drawing data reading operation, a coordinate calculating operation and a numerical data inputting operation and the occurrence of errors can be eliminated, and the drawing data prepared with a CAD system can be directly utilized to form an NC program.

REFERENCES:
patent: 4530046 (1985-07-01), Munekata et al.
patent: 4556957 (1985-12-01), Ichikawa
patent: 4868761 (1989-09-01), Hayashi
patent: 4918627 (1990-04-01), Garcia et al.
patent: 5067087 (1991-11-01), Seki et al.
patent: 5095439 (1992-03-01), Seki et al.
Prof Dr. Kochan et al., CAD/NC-Kopplungen, ZwF 85 (1990) 3, pp. 155-159.

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