Globoid worm gear generating method

Details Globoid worm gear generating method Globoid worm gear generating method

1995-07-10

1997-07-15

Briggs, William R.

Gear cutting, milling, or planing

Gear cutting

Gear tooth shape generating

74458, B23F 1300, F16H 5508

Patent

active

056477031

ABSTRACT:
There is disclosed a globoid worm gear generating method in which the surface of a globoid worm generating tool is defined as the tooth surface of an intermediate gear by an inverted conical surface whose semivertical angle .gamma. is 90.degree.<.gamma.<180.degree., a relational movement similar to that of a globoid worm wheel is given to the tool so as to generate a globoid worm, and the worm wheel is generated by a wheel generating tool having a contour wholly or partially similar to that of the globoid worm, or in which the surfaces of a globoid worm generating tool are defined wholly or partially by two inverted conical surfaces whose semivertical angles .gamma. are 90.degree.<.gamma.<180.degree., and the major axes as well as bottoms of the two inverted conical surfaces are coincident with each other so that both tooth surfaces of a worm may be simultaneously generated. By this method of the invention, the globoid worm gears can be generated within a short period of time.

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patent: 4998385 (1991-03-01), Umezono et al.
patent: 5018403 (1991-05-01), Umezono et al.
patent: 5325634 (1994-07-01), Kobayashi et al.
patent: 5465631 (1995-11-01), Klinar

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