Gear cutting – milling – or planing – Milling – With cutter holder
Patent
1998-06-17
1999-10-12
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
With cutter holder
408239A, 409232, B23C 900
Patent
active
059645563
ABSTRACT:
A device for holding and securing a rotating tool to be attached to the spindle shaft of a machine tool, that can realize ultra-precise cutting or grinding work under conditions of high rotation speed and rapid feeding. A tool holder consists of an outer cylinder having a tapered outside peripheral surface which comes into contact with the inside peripheral surface in a tapered hole of a spindle shaft; an inner cylinder which fits in such a manner that the outer cylinder can slide in an axial direction; a retainer having an outer armor which is formed at the front end of the inner cylinder and can contact the top end of said spindle shaft; and an elasticity-accelerating member which imparts elastic force to the retainer such that the outer cylinder can move towards its base end.
REFERENCES:
patent: 3136217 (1964-06-01), Swanson et al.
patent: 3554080 (1971-01-01), Herrmann
patent: 4714389 (1987-12-01), Johne
patent: 4840520 (1989-06-01), Pfalzgraf
patent: 4886402 (1989-12-01), Pfalzgraf
patent: 5030047 (1991-07-01), Pfalzgraf
patent: 5716173 (1998-02-01), Matsumoto
Howell Daniel W.
Richmill USA, Inc.
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