Topland chamfering of gears
AssigneeThe Gleason Works
InventorHermann J. Stadtfeld
Life of this patent
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Abstract
A method wherein a cutting or grinding chamfering tool (25) is guided along the face width of a gear (12, 23, 52) through one tooth slot (8) (e.g. from heel to toe) while it contacts the topland corners (10, 1 1) of the respective concave and convex tooth flanks of adjacent teeth (2, 4). The tool moves to an index position, the gear is indexed to the next tooth slot position and the tool moves through the tooth slot (e.g. from the toe to the heel). The cycle is repeated until all topland corners are chamfered.
Claims14
A method of chamfering teeth on a gear, said gear comprising a plurality of teeth with each of said teeth having a pair of tooth flank surfaces, a tooth length, a topland surface extending along said tooth length and a topland corner at the intersection of each tooth flank surface and the topland, said topland corner extending along said tooth length, said plurality of teeth being spaced from one another by a tooth slot, said method comprising:
- rotating a chamfering tool about a tool axis, said chamfering tool being a disc-shaped peripheral tool,
- moving said rotating chamfering tool through a tooth slot along the length of the teeth, said chamfering tool moving along a tool path, wherein the orientation of the tool axis is changed according to a swing axis angle during said moving along the tool path,
- whereby during said moving said chamfering tool contacts a topland corner on each tooth adjacent to said tooth slot thereby forming a chamfer extending along said tooth length on each of the adjacent teeth.
Dependencies are inferred from the claim text.