Methods and device for accurately positioning a roller segment f

Details Methods and device for accurately positioning a roller segment f Methods and device for accurately positioning a roller segment f

1989-11-02

1991-07-16

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Work holding

51217T, 51291, 269156, 269268, B23Q 700

Patent

active

050313037

ABSTRACT:
A roller segment (14) is held for the purpose of machining a spherical internal bearing surface (10). Its toric external surfaces (18) is supported against two fixed seats (17), immobilized with respect to rotation about an axis (VV') passing through the centers (c) of the profiles of the fixed seats (17) by a third seat (19), which is radially movable. Claws (21) hold the segment against the seats and circumferentially position the segment about the axis (UU') of its toric surface (18).
The bearing surface (10) is ground with a slight eccentricity (e) relative to the toric surface, and by grinding a surface suitable for hydrodynamic lubrication is obtained.

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The Tool and Manufacturing Engineer, vol. 53, No. 4, Oct. 1964, p. 58, Society of Manufacturing Engineers, Milwaukee, U.S.; "Fixture Aligns Castings for Machining-Disregards Shifted Cores".

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