Holding fixture

Details Holding fixture Holding fixture

1985-04-29

1987-02-03

Schmidt, Frederick R.

Work holders

With fluid means

Vacuum-type holding means

B25B 1100

Patent

active

046405011

ABSTRACT:
A hollow base member has a working surface and a plurality of spaced apart ways all extending parallel to an x-axis of a cartesian coordinate system. A plurality of hollow positioning members are slidably received in the ways. A plurality of vacuum hold down members are slidably sealingly received within bores in the base member and in the positioning members, respectively, and move along lines parallel to the z-axis relative to the working surfaces. A work piece is placed on a plurality of the hold down members which establish its position in the z-direction, then advanced against stop members fixed to the base member to establish its position along the y-axis. Then the positioning members are slid in the ways until integral stop members engage the work piece to establish a plurality of positions along the x-axis and within an xy-plane of the coordinate system. Vacuum applied to the hold down members from the interior of the base member and each of the positioning members rigidly holds the work piece in position for machining operations. Numerically controlled machinery can accurately and rapidly perform the desired operations.

REFERENCES:
patent: 3652075 (1972-03-01), Thompson
patent: 3853313 (1974-12-01), Appenzeller et al.
patent: 4088312 (1978-05-01), Frosch et al.
patent: 4468017 (1984-08-01), Pavone
patent: 4527783 (1985-07-01), Collora et al.

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