Method for preparation of spherical hob for generation of gear

Details Method for preparation of spherical hob for generation of gear Method for preparation of spherical hob for generation of gear

1978-06-19

1980-05-13

Bilinsky, Z. R.

Metal tools and implements, making

Blank or process

51 94CS, 51288, 409 11, B23F 1700

Patent

active

042022223

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: 1357815 (1920-11-01), Olson

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