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US 9,782,848 B2Granted
Swing motion for manufacturing non-generated bevel gears with end relief
AssigneeThe Gleason Works
InventorsHermann J. Stadtfeld, Robert T. Donnan
Life of this patent
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Abstract
A motion which creates an end relief and which is integrated into the plunging cycle of non-generated bevel gears. The tool, after feeding to the correct tooth forming position in case of non-generated gears, is swung sideways out of cutting or grinding contact with the slot instead of along a withdraw path which is identical to the plunge path but opposite in direction.
Claims9
A method of machining a bevel gear workpiece with a tool to form a plurality of tooth surfaces on said workpiece with each of said tooth surfaces having a predetermined length, said method comprising:
- engaging said workpiece and said tool,
- feeding said tool relative to said workpiece to a predetermined depth in said workpiece thereby forming a tooth slot and defining adjacent tooth surfaces,
- moving said tool relative to said workpiece whereby an end relief section is formed by said tool at one end of at least one of said adjacent tooth surfaces, said moving of said tool being an angular swing motion (φ) defined by pivoting said tool about a swing pivot axis, said swing pivot axis being located dependent upon the length (Δl) and depth (Δh) of said end relief section,
- wherein said moving additionally includes a rotation of said workpiece about a work rotation phase angle,
- withdrawing said tool from the tooth slot.
2 more elements
Dependencies are inferred from the claim text.