Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1980-11-10
1983-04-05
Kunin, Stephen G.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51287, 409 53, B24B 1900
Patent
active
043786600
ABSTRACT:
A method and apparatus for grinding pairs of gear wheels such as spiral or curved tooth bevel gear wheels whereby a first wheel is ground with a male cup-type grinding tool and a second, counter wheel is ground with a female cup-type grinding wheel with an additional eccentric cyclic motion being applied to one of said wheels. In accordance with a preferred feature of the invention, the grinding tools utilized are not exactly complementarily congruent, the female tool differing by an amount that is equal to the amount of the additional eccentric cyclic motion that is effective in the direction of the tooth normal. The additional eccentric motion is preferably elliptical and in accordance with an apparatus aspect of the invention a drive is provided for achieving such elliptical supplementary motion. This drive is preferably characterized by a rod of specific length that is swingably borne and rotatably driveable at one end, about a rod axis that is stationary on the device (corresponding to the grinding axis when there is no supplementary motion), while at the other end of the rod there is a pivot arm of specific pivot length that is swingably and rotatably borne about a pivot axis (that consequently moves with reference to the machine frame), the grinding axis being guided by the free end of the pivot arm.
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Kunin Stephen G.
Olszewski Robert P.
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