Method of and machine for grinding cams

Details Method of and machine for grinding cams Method of and machine for grinding cams

1993-11-09

1995-12-05

Kisliuk, Bruce M.

Abrading

Precision device or process - or with condition responsive...

With indicating

451 62, B42B 4900, B42B 5100

Patent

active

054723680

ABSTRACT:
Two or more angularly offset cams on a camshaft are ground simultaneously by discrete abrasive belts or grinding wheels while the camshaft rotates about its longitudinal axis. The camshaft is rotated in accordance with a pattern denoting different speeds during different stages of each revolution of the camshaft, and such pattern is selected in dependency on angular positions of the cams. Each belt or grinding wheel is movable radially of the axis of the rotating camshaft independently of the other belt(s) or wheel(s). The RPM of the camshaft is lower when one or more belts or wheels are in the process of grinding the flanks of the respective cam or cams, and the RPM is higher when one or more belts or wheels are in the process of grinding the apex or apices and/or the rounded portion or portions of the respective cam or cams. During each stage of each of its revolutions, the RPM of the camshaft matches or approximates the lowest of the maximum permissible RPMs for the momentary stage of rotation of the camshaft.

REFERENCES:
patent: 4197679 (1980-04-01), Yamada et al.
patent: 4833834 (1989-05-01), Patterson
patent: 4885874 (1989-12-01), Wedeniwski
patent: 5355633 (1994-10-01), Ishikawa et al.
Wedeniwski, Horst Josef, "Prozessrechnergesteuertes Produktions-Nockenschleifen", Werksstatt Und Betrieb 118 (1985)8, pp. 443-448 .

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