Method of and apparatus for grinding control edges of a control

Details Method of and apparatus for grinding control edges of a control Method of and apparatus for grinding control edges of a control

1997-06-12

1998-12-29

Morgan, Eileen P.

Abrading

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

With feeding of tool or work holder

451 6, 451 51, 451178, 451246, 451252, B24B 500

Patent

active

058533168

ABSTRACT:
A method of grinding control edges of a control bush of a rotary slide valve for hydraulic steering of motor vehicles, includes placement of the control bush in a support in form of slide shoes or a V block and additionally securing the control bush in the support by pressure rollers. A precise angular positioning of the control bush is effected by press-fitting a mandrel into the interior of the control bush. After grinding the control bush to a predetermined outside diameter, the reference points commensurate with the angular position of the individual control edges are determined by a measuring system. Based on the determined reference points, an optimum reference point for the angular position of all control edges is computed and utilized for adjusting the mandrel in form of a zero point shift for grinding the control edges.

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