Releasable tool-holder mount for machining spindle

Details Releasable tool-holder mount for machining spindle Releasable tool-holder mount for machining spindle

1996-12-20

1998-10-27

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

409233, 279 203, 408228, 408239A, B23D 700

Patent

active

058270213

ABSTRACT:
A driven part of a tool is secured to a drive part of a drive spindle rotatable about an axis by a mount having a tubular extension projecting axially forward from one of the parts and formed centered on the axis with a radially inwardly projecting collar and a recess on the other part complementarily engageable axially over the tubular extension. A retaining element in the tubular extension has a plurality of dogs deflectable radially between an outer blocking position axially behind the collar and an inner position radially rearward of the collar. An actuating member in the retaining element in the tubular extension has a camming edge engageable forward with the dogs. Interengaging coupling formations between the member and the other part inhibit rotation of the member relative to the other part while permitting axial displacement of the member relative to the parts between a rear position clear of the dogs with same in the inner position and a front position pressing the dogs outward into the outer position. An actuating rod centered on the axis has a rear end formed with a screwthread threaded into the actuating member and a front end formed with a screwthread threaded into the other part. The screwthreads of the rod are of opposite hand so that rotation of the rod about the axis in one direction displaces the member forward toward its front position and opposite rotation displaces the member rearward toward its rear position.

REFERENCES:
patent: 4122755 (1978-10-01), Johnson et al.
patent: 4978262 (1990-12-01), Tjernstrom
patent: 4997325 (1991-03-01), Heel et al.
patent: 5018916 (1991-05-01), Bauch et al.
patent: 5391027 (1995-02-01), Green

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