Chucks or sockets – Angularly adjustable or indexing
Patent
1974-01-22
1976-02-17
Schran, Donald R.
Chucks or sockets
Angularly adjustable or indexing
279 4, 279121, B23B 3134
Patent
active
039388166
ABSTRACT:
A chuck of the indexing type is comprised of a chuck housing, a pair of opposed jaw supports mounted within the housing with one of the supports being fixedly secured thereto and the other of the supports including an inclined cam surface and being movable toward and away from the fixed support. A jaw is mounted on each support through a live center and rotates relative to the support into any one of a number of indexed positions. A hydraulic jaw operator mounted on the housing includes a wedge drive engaging the cam surface of the movable support for driving the movable support and its associated jaw toward and away from the fixed support. Another feature of the invention is the provision for index locking means for each jaw mounted on the housing for locking the jaws against rotation. The rigidity of the chuck is enhanced by the chuck housing construction that includes a pair of substantially planar support plates rigidly interconnected in spaced parallel relationship with at least one of the plates having an enlarged central aperture of sufficient size to readily permit passage of a workpiece therethrough for engagement by the opposed jaws. One of the jaws of the chuck also may be provided with a plurality of fluid-operated work stabilizing clamps and a closed fluid circuit interconnecting the clamps for controlling engagement of the workpiece.
REFERENCES:
patent: 1816655 (1931-07-01), Ragan
patent: 2660440 (1953-11-01), Kurtz
patent: 2972487 (1961-02-01), Blackburn
Bilinsky Z. R.
PowerHold Products, Inc.
Schran Donald R.
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