Machine chuck

Details Machine chuck Machine chuck

1997-09-04

1999-09-28

Pitts, Andrea L.

Chucks or sockets

With fluid-pressure actuator

Radially reciprocating jaws

279114, B23B 522

Patent

active

059574666

ABSTRACT:
A machine chuck (10) having a base (13) to be rotated about a longitudinal axis. Jaw members (20) move relative to the base (13) and radially with respect to the axis. A scroll member (18) is mounted on the base for angular movement relative thereto, which scroll member (18) engages the jaws (20) to cause the radial movement thereof. The base (13) has an annular passage which receives pistons (17) attached to the scroll member 18. Fluid under pressure delivered to the passage (16) causes angular movement of the pistons (17) and therefore scroll member (18) relative to the base (13). This angular movement causes radial movement of the jaw members (20).

REFERENCES:
patent: 1628476 (1927-05-01), Sloan
patent: 2588938 (1952-03-01), Rogers
patent: 2725236 (1955-11-01), Skillin
patent: 3028169 (1962-04-01), Skillin
patent: 4401308 (1983-08-01), Sakaguchi et al.

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