Work holders – With fluid means – Vacuum-type holding means
Patent
1975-08-11
1976-11-09
Gilden, Leon
Work holders
With fluid means
Vacuum-type holding means
90 58R, 269 71, 408109, 269;71, B25B 1100
Patent
active
039906892
ABSTRACT:
An adjustable holder assembly for positioning a vacuum chuck relative to a bed including a base plate having an integrally formed pivot mount for rotatably affixing the plate to a bed providing a first degree angular displacement .theta.1. A lower stage includes a housing having bearing ways formed on the bottom of said housing spaced to slidably mate with the tracks in the base plate, a lead screw extending through said housing and a concentric shaft with cord means encircling said shaft, the lower stage housing having substantially parallel tracks formed in the top surface at right angles to the bottom surface ways. An upper stage includes a housing having bearing ways formed on the bottom surface for slidably mating with the tracks in the top surface of the lower housing, pillow blocks slidably engaging the lead screw, upper housing having a central bore, and a chuck member slidably positioned in the bore having a handle for rotating the chuck member about the axis of the bore to provide a second degree of an angular displacement .theta.2. Stops restrict the upward and downward travel of the chuck member in the bore, yieldable spring means urge the member against the upward stop and means urges downward travel of the member against the force of the yieldable spring means to provide movement in a Z plane.
REFERENCES:
patent: 3090284 (1963-03-01), Dunning
patent: 3202895 (1965-08-01), Arp et al.
patent: 3566720 (1971-03-01), Phillips
patent: 3730634 (1973-05-01), Gerber et al.
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