Gear hobbing machine with arborless support for hob

Details Gear hobbing machine with arborless support for hob Gear hobbing machine with arborless support for hob

1992-05-26

1993-03-09

Briggs, William

Gear cutting, milling, or planing

Gear cutting

Gear tooth shape generating

409232, B21F 2312

Patent

active

051921723

ABSTRACT:
In a hobbing machine of the type with a pair of coaxial heads driving a hob supported between them, one of which capable of movement toward and away from the other and one affording a key positioned to engage a slot associated with the hob, the slot is incorporated directly into the hob, and each head carries an axially hollow alignment spigot with a stop collar, matched to and insertable in the axial bore of the hob to a depth determined by interaction of the relative collar with the end of the hob; equipping one of the heads with a coaxial tension rod insertable through the bore of the hob, and the other head with a clamping mechanism capable of gripping and tensioning the rod, the necessary rigidity is obtained without the use of an arbor.

REFERENCES:
patent: 3076387 (1963-02-01), Fabish
patent: 4015510 (1977-04-01), Hodgson
patent: 4111098 (1978-09-01), Ainoura
patent: 4137822 (1979-02-01), Behnke
patent: 4536110 (1985-08-01), Farrell et al.

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