Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1992-12-21
1993-10-12
Kisliuk, Bruce M.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51145R, 5116577, B24B 1700
Patent
active
052514048
ABSTRACT:
A belt grinder has a plurality of belts for simultaneously grinding the pins of a crankshaft during crankshaft rotation about its main bearing axis. A shoe for each belt urges the belt against the pin. A profile mechanism including a CNC controller and a servomotor controls each belt by moving the belt against the pin (via the shoe) in a motion for generating a cylindrical pin surface. Guide wheels which guide the belt to and from the shoe are mechanically coupled to the shoe for movement therewith to compensate for the effect of shoe movement on the belt path. A tension wheel maintains a desired tension on the belt and assists the guide wheels in maintaining a constant belt path length. Alternatively, a bias arrangement including an air cylinder applies tension to the belt via the guide wheel. The guide wheel may be retracted by an air cylinder to remove tension for belt removal and replacement.
REFERENCES:
patent: 2817930 (1957-12-01), Bayton, Sr.
patent: 3226884 (1966-01-01), Mellerski
patent: 3524284 (1970-08-01), Means
patent: 3885924 (1975-05-01), Marowsky
patent: 4175358 (1979-11-01), Bischeri
patent: 4833834 (1989-05-01), Patterson et al.
patent: 4934882 (1990-06-01), Phillips
patent: 4945683 (1990-08-01), Phillips
patent: 5142827 (1992-09-01), Phillips
General Motors Corporation
Kisliuk Bruce M.
Lavinder Jack
Outland Robert J.
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