Metal working – Method of mechanical manufacture – Work holding
Patent
1994-12-15
1996-02-27
Bryant, David P.
Metal working
Method of mechanical manufacture
Work holding
269 21, 269303, 409132, 144134A, 144144R, 144137, B23Q 700
Patent
active
054937671
ABSTRACT:
An assembly for positioning a pattern on a workpiece on the worktable of a computer controlled machine in a predetermined position, for performing a work function on the workpiece, comprising first reference points disposed on the worktable having a predetermined spatial relationship to the pattern in the predetermined position, a transfer piece having second reference points registrable with the first reference points and locator points registrable with the workpiece pattern, the second reference points being disposed in a predetermined spatial relationship to the locator points, a system for detachably securing the workpiece to the transfer piece when the locator points are disposed in registry with the workpiece pattern, and a system for detachably securing the workpiece to the worktable when the workpiece pattern is disposed in the predetermined position.
REFERENCES:
patent: 4656791 (1987-04-01), Herrington et al.
patent: 4747589 (1988-05-01), Watson et al.
patent: 4795518 (1989-01-01), Meinel et al.
patent: 4808046 (1989-02-01), Pilkington et al.
patent: 5224406 (1993-07-01), Nasu
patent: 5226211 (1993-07-01), Jones
Bryant David P.
Thermwood Corporation
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