Machine tool with plural tool spindles

Details Machine tool with plural tool spindles Machine tool with plural tool spindles

1996-04-29

1997-12-16

Morgan, Eileen

Abrading

Machine

Rotary tool

451251, 451218, 451140, 451121, 834711, B24B 2704

Patent

active

056978316

ABSTRACT:
A circular grinding machine wherein a reciprocable carriage supports a first rotary tool spindle for a relatively large grinding wheel and the housing including the bearing for the first spindle mounts a carrier which is pivotable about the axis of the first spindle by a fluid-operated motor and supports a second tool spindle for a relatively small grinding wheel. The carriage can be advanced to a first position to move the relatively large grinding wheel into coarse material removing contact with a rotary workpiece (such as a camshaft), and the carriage is thereupon retracted to a second position in which the carrier can be pivoted about the axis of the first spindle to move the relatively small grinding wheel into precision-finishing engagement with the pretreated workpiece.

REFERENCES:
patent: 1740551 (1929-12-01), Robinson
patent: 3886693 (1975-06-01), Tajnafoi et al.
patent: 4052822 (1977-10-01), Obear
patent: 4306382 (1981-12-01), Ueda
patent: 5148732 (1992-09-01), Striebig
patent: 5472368 (1995-12-01), Zollig

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