Method and apparatus for preparation of spherical hob for genera

Details Method and apparatus for preparation of spherical hob for genera Method and apparatus for preparation of spherical hob for genera

1979-05-29

1982-01-12

Bilinsky, Z. R.

Turning

Pattern section

Cam-controlled cutter

409 69, 409292, B23B 542, B23F 2116, B23B 546

Patent

active

043099262

ABSTRACT:
A method for the preparation of a spherical hob for generation of a gear, which has a plurality of hob blades formed on the surface of a spherical hob blank, is disclosed. This method comprises forming spirally on the peripheral surface of the hob blank projections having a section defining an involute tooth profile by means of a cutting tool, cutting and forming a plurality of blade spaces intersecting said projections to thereby form a plurality of spirally continuous hob blades, and forming reliefs on the side faces and peripheral face of each hob blade so that as the blade faces of the hob are cut, the tooth profile of each hob blade corresponds to the tooth profile before cutting with a certain amount of addendum.

REFERENCES:
patent: 1882009 (1932-10-01), Head
patent: 2426458 (1947-08-01), Kuffler
patent: 2615359 (1952-10-01), Cook et al.

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