Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1992-04-06
1993-06-29
Ip, Paul
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318571, 364191, 36447426, 36447427, 36447429, G05B 19405
Patent
active
052237770
ABSTRACT:
A numerical controller accepts an instruction for the cutting of pockets with perimeters of irregular shapes, the instruction defining the perimeter by a series of vertex points and a straight-line, circular, or some other interpolation to move between these vertices. The numerical controller cuts the perimeter of the pocket by reference to the vertex points and constructs a bit map indicating the cut and uncut material after completion of the perimeter. A rule-based path generator employs the bit map to complete the interior of the pocket without explicit programming of those interior tool motions. The bit map is constructed on a real-time basis by offsetting the tool motion coordinates to roll over in the bit map space regardless of the tool starting position.
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Bielawski Timothy
Govindaraj Subbian
Kramer Paul S.
Schwarz William C.
Werner Timothy W.
Allen-Bradley Company Inc.
Ip Paul
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