Tool feeding method in gear manufacturing processes

Details Tool feeding method in gear manufacturing processes Tool feeding method in gear manufacturing processes

1993-03-22

1994-05-10

Briggs, William

Gear cutting, milling, or planing

Gear cutting

Gear tooth shape generating

51287, 409 26, B23F 914

Patent

active

053102959

ABSTRACT:
Disclosed herein is a process for feeding a tool relative to a workpiece in a machining process such as a process for forming bevel and hypoid gears. The method comprises feeding the tool from an initial contact position with the workpiece to a full depth position in the workpiece along a feedpath at least a portion of which is defined by a feed vector having at least two feed vector components lying in an axial plane. The first feed vector component being substantially in the direction of the axis of a theoretical generating gear and the second feed vector component being substantially in a direction perpendicular to the generating gear axis. The feed vector may include a third feed vector component lying in a normal plane. With this feedpath undesirable tool shifting and workpiece spiral angle changes are significantly reduced.

REFERENCES:
patent: 2773429 (1956-12-01), Wildhaber
patent: 4981402 (1991-01-01), Krenzer et al.
patent: 5116173 (1992-05-01), Goldrich
Goldrich, Robert N., "CNC Generation of Spiral Bevel and Hypoid Gears: Theory and Practice", The Gleason Works, Rochester, New York, USA, 1990.

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