Gear cutting – milling – or planing – Milling – With means to protect operative or machine
Patent
1996-11-12
1998-11-03
Pitts, A. L.
Gear cutting, milling, or planing
Milling
With means to protect operative or machine
409137, 409197, 409199, B23C 900
Patent
active
058299300
ABSTRACT:
A crankshaft miller performs cutting work by means of a cutter mounted on a rotary cutter drum, for a work which both ends are gripped by chucks, and clamps a portion in the vicinity of a processed portion of the work by a rest arm to be opened and closed. An arrangement for preventing chip from flying around includes a chip flying around preventing cover which is designed for preventing chip from flying around upon stopping of the rotary cuter drum. The chip flying around preventing cover includes a main cover positioned in the vicinity of the rotary cutter drum and having an opening with a diameter sufficiently larger than an external diameter of the chuck when a rotary cutter drum is positioned at a stand-by position; and an auxiliary cover mounted on an opening portion of the main cover and having an opening with a diameter slightly larger than the external diameter of the chuck.
REFERENCES:
patent: 3880025 (1975-04-01), Kralowetz et al.
patent: 4040336 (1977-08-01), Lewis et al.
patent: 4090422 (1978-05-01), Berbalk
patent: 5451122 (1995-09-01), Noda et al.
patent: 5647705 (1997-07-01), Shimomura
Kirkman Christopher
Komatsu Machinery Corporation
Pitts A. L.
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