Method for machining the flanks of gears by skiving and apparatus for implementing such method
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United States of America Patent
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Sep 12, 1989
Grant Date -
N/A
app pub date -
Sep 17, 1986
filing date -
Sep 17, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method is used for machining flanks of unhardened or hardened, spur-toothed or helical-toothed, internally toothed or externally toothed cylindrical gears by skiving. Basic rotation is produced between a tool and a workpiece. In addition, a helical motion between the tool and the workpiece is produced. The relative motion between the tool and the workpiece is executed with high accuracy, and any variations in the relative motion are corrected. The tooth number z.sub.0 of the tool, for minimizing the effect of the variations of the tool and its mounting, is fixed in such a way that, in the case of z.sub.0 .gtoreq.z.sub.2 (z.sub.2 is the tooth number of the workpiece, z.sub.0 is the tooth number of the skiving tool), the ratio i=z.sub.0 /z.sub.2, and in the case of z.sub.0 >z.sub.2, the reciprocal of the ratio 1/i=z.sub.2 /z.sub.0, result in an integral value or the ratio of two integral numbers, the amount of which is as small as possible.
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