Lathe chuck for offecenter workpiece rotation

Details Lathe chuck for offecenter workpiece rotation Lathe chuck for offecenter workpiece rotation

1989-07-28

1990-10-30

Bishop, Steven C.

Chucks or sockets

Eccentric

279 1C, 279 1J, 279106, 279121, B23B 522

Patent

active

049663755

ABSTRACT:
A chuck has a chuck body generally centered on and rotatable about a rotation axis, a head displaceable on the chuck body generally perpendicular to the rotation axis, and three jaws angularly generally equispaced on the head about a clamp axis offset from and substantially parallel to the rotation axis. All of these jaws are displaceable on the head generally radially of the clamp axis. An actuator is connected to the jaws for synchronously displacing same generally radially toward and away from the clamp axis. The actuator includes an actuator member displaceable axially in the head and provided with respective actuating surfaces inclined to the clamp axis and engageable with the jaws. Two of the jaws are pivotal about respective jaw axes parallel to the axes and the other jaw is displaceable in a plane substantially including the clamp and rotation axes.

REFERENCES:
patent: 3373641 (1968-03-01), Hermann
patent: 4044638 (1977-08-01), Heffron et al.
patent: 4669741 (1987-06-01), Rohm

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