Curved surface formation polishing apparatus

Details Curved surface formation polishing apparatus Curved surface formation polishing apparatus

1985-04-22

1987-04-14

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

5116572, 51105LG, B24B 1300

Patent

active

046567879

ABSTRACT:
A curved surface formation polishing apparatus for rotationally symmetrical objects such as optical lenses, mirrors, etc., which is so arranged that, by relatively displacing a processing tool and a workpiece in a direction generally intersecting at right angles with the rotary axis of the processing tool mounted on a rotating spindle so as to follow a predetermined curved surface cross section shape, grinding loci at a processing point of the workpiece formed by an abrasive grain cutting edge of the processing tool will overlap each other by crossing as the processing proceeds, thus achieving a favorable finished surface. Moreover, according to another embodiment of the present invention, more than two processing tools can be mounted on the same rotary axis, and there is provided a device for displacing the processing tools in the direction of the rotary axis so as to change-over the processing tools according to end uses and processing steps, so that change-over of the processing tools is facilitated, while it becomes possible to reduce deterioration in the accuracy of the processed shape by setting errors of the processing tools, with a simultaneous simplification of construction of the apparatus and reduction in cost for an improved mass-productivity.

REFERENCES:
patent: 2431671 (1947-12-01), Arms
patent: 3037330 (1962-06-01), Weigand
patent: 3736818 (1973-06-01), Ennis

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