Lap shaping machine with oscillatable point cutter and selective

Details Lap shaping machine with oscillatable point cutter and selective Lap shaping machine with oscillatable point cutter and selective

1979-08-02

1983-04-19

Whitehead, Harold D.

Gear cutting, milling, or planing

Planing

Means for cutting arcuate surface

51 58, B23D 710

Patent

active

043804128

ABSTRACT:
Programmable electric and hydraulic machine for shaping laps such as are used to form or polish opthalmic lenses, comprises vertically oscillatable, longitudinally displaceable arm carrying a point cutter which is functionally engageable by radially extensible, rotating lap carried by upstanding spindle. Alternately, spindle is operable by oscillating drive when lap is radially retracted. Toroidal or spherical laps having a large range of variance in two dimensions, i.e. curvatures, are thus obtained by using relevant cutter and lap locations, as well as appropriate drive settings. Concave laps are produced by exchanging locations of lap and cutter so workpiece is carried by vertical-moving arm.

REFERENCES:
patent: 1199519 (1916-09-01), Arnold
patent: 1221858 (1917-04-01), Hollands
patent: 1309264 (1919-07-01), Squier
patent: 1580006 (1926-04-01), Brown
patent: 1803429 (1931-05-01), Gunning
patent: 3782042 (1974-01-01), Stasbaugh
patent: 4085549 (1978-04-01), Hodges

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