Hydraulic chuck assembly

Details Hydraulic chuck assembly Hydraulic chuck assembly

1991-12-04

1993-03-30

Bishop, Steven C.

Chucks or sockets

With fluid-pressure actuator

Radially reciprocating jaws

279121, B23B 31177, B23B 3130

Patent

active

051977486

ABSTRACT:
A hydraulic chuck assembly is to be provided on one end of a shaft of a CNC lathe and includes a hollow main chuck body having a front head being formed with a plurality of radially extending and angularly spaced seat retaining slide grooves. A tubular plunger is movably provided inside the main chuck body. The plunger has a rear end portion and a gradually expanding and forwardly extending funnel-shaped cam portion extending into the front head. A plurality of grip seats are slidably retained in the slide grooves. Each of the grip seats has a rear side formed with an inclining groove. The inclining grooves of the grip seats cooperatively receive the funnel-shaped cam portion. The plunger is movable forward or rearward, and the funnel-shaped cam portion cams the inclining grooves of the grip seats so as to move the grip seats toward or away from each other along the slide grooves.

REFERENCES:
patent: 2954983 (1960-10-01), Roby
patent: 4026566 (1977-05-01), Rohm

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