Interference checking method and apparatus for numerical control

Details Interference checking method and apparatus for numerical control Interference checking method and apparatus for numerical control

1992-11-02

1994-08-16

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318565, 318567, 318569, 318574, 3644742, G05B 1918

Patent

active

053390156

ABSTRACT:
A coordinate data converter converts plural shape data of the movable parts from a direction and of the parts that may interfere with the movable parts into the shape data of the three-dimensional coordinate system unique to the machining system, the number of structural shape elements of those parts being different from one another. A generator projects thus converted shape data on the three planes of said three-dimensional coordinate system; an arithmetic operator determines whether or not projected data overlap each other in each of the three planes, and a detector determines that an interference has occurred if the projection data on respective planes overlap and if projected data based on the shape data overlap in all of the three planes. Interferences can be thereby precisely checked in a short period of time even if a tool used for machining with an NC machine tool moves in a complicated manner or has a complex shape because it can store the shape of movable parts and of parts which may interfere with the movable parts including simple shapes to detailed shapes so as to permit the successive checking thereof.

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patent: 5146410 (1992-09-01), Kawamura et al.
patent: 5150305 (1992-09-01), Sekikawa

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