Apparatus for holding a toolholder shank utilizing a rotatable c

Details Apparatus for holding a toolholder shank utilizing a rotatable c Apparatus for holding a toolholder shank utilizing a rotatable c

1994-04-08

1995-09-26

Briggs, William

Turning

Lathe

Tool rest

409234, B23B 2904

Patent

active

054526310

ABSTRACT:
An apparatus for releasably holding a tubular toolholder shank by axially reciprocating a lock rod between a locked and unlocked position. The lock rod is reciprocated using a rotatable cam. The rotatable cam activates a preloaded spring to generate a force securing the lock rod in the locked position. The rotatable cam includes a non-cylindrical cam post to minimize a kickback force that may be caused by the preloaded spring on the cam post as the lock rod is moved from the locked to the unlocked position.

REFERENCES:
patent: 4680999 (1987-07-01), Kojima et al.
patent: 4747735 (1988-05-01), Erickson et al.
patent: 4843929 (1989-07-01), Andersson
patent: 4981057 (1991-01-01), von Haas et al.
patent: 5054344 (1991-10-01), Erickson et al.
patent: 5169270 (1992-12-01), Erickson
patent: 5173017 (1992-12-01), Oshnock et al.
patent: 5245896 (1993-09-01), Erickson et al.
patent: 5279194 (1994-01-01), Armbrust
Kennametal Drawing No. D-001 entitled "Toolholder Clamping Mechanism".

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