Tool holder retention system

Details Tool holder retention system Tool holder retention system

1989-03-31

1990-04-24

Howell, Daniel

Gear cutting, milling, or planing

Milling

Work support

279 1L, 279 67, 408239R, 409234, B23B 3102

Patent

active

049195743

ABSTRACT:
A tool or workpiece holder retention mechanism which engagably retains the holder retention portion of the holder by creating a clamping force which draws the holder retention portion into a cooperatively formed area between two retaining jaws. Two abutting surfaces, one on the holder and one on the abutting surface on the retention mechanism housing, have formed thereon cooperatively engagable surfaces at least one of which is generally spirally formed, which meshedly engage to self-center the tool holder. Preferably the cooperatively engagable surfaces are in the form of mating spiral gear teeth specifically the jaws and the holder retention portion are constructed and actuated so as to be radially freely floatable to avoid interference with the self-centering function of the mating spiral surfaces.

REFERENCES:
patent: 1873476 (1932-08-01), Procunier
patent: 2485799 (1949-10-01), Woytych
patent: 4307797 (1981-12-01), Belansky
patent: 4575293 (1986-03-01), Berti
patent: 4655655 (1987-04-01), Schurfeld
patent: 4784543 (1988-11-01), Mitchell et al.

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