Automatic workpiece thickness control for dual lapping machines

Details Automatic workpiece thickness control for dual lapping machines Automatic workpiece thickness control for dual lapping machines

1988-08-15

1989-08-29

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

511314, B24B 4900

Patent

active

048604984

ABSTRACT:
A device for automatically sizing (thickness control) a workpiece of a double wheeled lapping machine, during the lapping process with simultaneous runout of the lower lap compensation. The device provides an annular ring attached in parallelism to the upper plate, together with a roller follower having contact with the under surface of the ring, with the follower pivoted upon an adjustable mounting arm attached to a vertically extending stationary post mounted beyond the circumference of the ring on a supporting shelf formed as a part of the machine casing. A movement responsive probe is in contact with the follower and responds to any deviation in flatness of the workpiece as it is transmitted therefrom onto the lapping surfaces of dual lap plates during the lapping thereof.

REFERENCES:
patent: 3395494 (1968-08-01), Sogn
patent: 4359840 (1982-11-01), Bryner
patent: 4524547 (1985-06-01), Heaston et al.

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