Pivoted chucking jaws with low friction rollers

Details Pivoted chucking jaws with low friction rollers Pivoted chucking jaws with low friction rollers

1991-02-13

1992-08-11

Bishop, Steven C.

Chucks or sockets

Expanding

Jaw structure

279 224, 279123, 279132, 279152, B23B 3116

Patent

active

051372878

ABSTRACT:
A chuck jaw is provided having a pivotally mounted gripper mounted to the base jaw. Each end of the gripper serves as a chuck point, so that a three-jaw chuck can be used to provide six chuck points. Preferably, rollers are provided at each chuck point of the gripper to ensure even distribution of forces around the workpiece. In addition, spring plungers preferably are provided to limit the degree of pivoting of the gripper relative to the base jaw when a workpiece is not mounted on the chuck.

REFERENCES:
patent: 2815959 (1957-12-01), Vandenberg

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