Tool-holder chuck

Details Tool-holder chuck Tool-holder chuck

1977-01-13

1977-12-13

Hinson, Harrison L.

Chucks or sockets

With fluid-pressure actuator

Socket type

279 1B, 279103, B23B 522

Patent

active

040625524

ABSTRACT:
A tool-holder chuck for receiving therein a tool holder provided with various tools such as end mills or drills, etc., e.g. in a milling machine, which chuck can be changed easily when necessary, comprising a clamp including a nut which is threaded to a chuck body, a clamp ring which can move only in the coaxial direction against the body, and a plurality of rolling members that transmit at least the coaxial movement of the nut to the clamp ring when it is screwed in, projections on the tool holder being pressed inward by the coaxial movement of the clamp ring as a result of screwing of the nut, and a taper spindle of the holder, that interlocks with a tapered bore of the chuck body. In this way direct sliding friction against the projections is eliminated, and the tool holder can be clamped tightly, with relatively small screwing force of the nut, utilizing the sliding friction between the nut and the clamp ring.

REFERENCES:
patent: 3405950 (1968-10-01), Cox
patent: 3663028 (1972-05-01), King et al.
patent: 3679220 (1972-07-01), Reeves
patent: 3829109 (1974-08-01), Koch

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