Method for machining the flanks of gears by skiving and apparatu

Details Method for machining the flanks of gears by skiving and apparatu Method for machining the flanks of gears by skiving and apparatu

1986-09-17

1989-09-12

Briggs, William

Gear cutting, milling, or planing

Gear cutting

Gear tooth shape generating

409 60, B23F 500

Patent

active

048654973

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.

REFERENCES:
patent: 2282193 (1942-05-01), Lambrix
patent: 2465707 (1949-03-01), Braun
patent: 3460431 (1969-08-01), Birch
patent: 4487535 (1984-12-01), Johnson et al.
patent: 4514119 (1985-04-01), Izumo
patent: 4587766 (1986-05-01), Miyatake et al.
patent: 4708544 (1987-11-01), Faulstich et al.

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