Equalizing chuck

Details Equalizing chuck Equalizing chuck

1997-09-18

1999-08-24

Howell, Daniel W.

Chucks or sockets

Compensation for eccentricity

279137, B23B 522

Patent

active

059415380

ABSTRACT:
An equalizing chuck includes a body, a plurality of work engaging jaws, and a plurality of rocker arms carrying the jaws. The rocker arms extends axially along an axis and have a mounting portion at one axial end for the jaws and an end portion at the other axial end. The equalizing chuck also includes a plurality of swivel mountings connecting the rocker arms to the body, a plurality of slide members receiving the end portions of the rocker arms, a reciprocal actuator disposed centrally of the rocker arms, and a plurality of segments slidably secured to the actuator. The segments are operative to move in a radial manner with respect to a centerline of the body and operatively cooperate with the slide members such that reciprocatory movement of the actuator moves the segments and correspondingly the slide members to move the jaws relative to each other. The equalizing chuck also includes a plurality of bearings positioned between the segments and the body wherein engagement of a workpiece by a set of jaws causes relative radial movement between adjacent segments until a pressure exerted on the workpiece by the work engaging jaws is equalized.

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