Hydraulic nosepiece assembly for a collet closer, and method

Details Hydraulic nosepiece assembly for a collet closer, and method Hydraulic nosepiece assembly for a collet closer, and method

1986-08-15

1987-09-01

Weidenfeld, Gil

Chucks or sockets

With fluid-pressure actuator

Socket type

279 43, 279 50, B23B 3120

Patent

active

046904158

ABSTRACT:
A method and apparatus are shown for closing a spring collet upon a work piece in a lathe or similar machine tool, in which neither the work piece nor the collet is moved in the longitudinal or axial direction.
The collet closer has a nosepiece assembly within which an axially movable sleeve is provided. Movement of the sleeve causes the collet to open or close, in a radial direction, without axial dislocation of either collet or work piece.
The nosepiece assembly contains a hydraulic circuit which actuates the movable sleeve in response to movements of a draw bar.

REFERENCES:
patent: 3434730 (1969-03-01), Smerkar
patent: 3835649 (1974-09-01), Le Testu
patent: 3880046 (1975-04-01), Sessody
patent: 3933061 (1976-01-01), Link
patent: 3977065 (1976-08-01), Johnson
patent: 4094521 (1978-06-01), Piotrowski
patent: 4422653 (1983-12-01), Piotrowski

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