Internal bevel gear
View Patent ↗A method of machining a bevel gear ( 22 ) having teeth with a pitch angle greater than 90 degrees comprising providing at least one tool ( 42, 44 ) rotatable about a tool axis with the tool comprising a disc-shaped body ( 43 ) having a periphery ( 49 ) and at least one stock removing surface ( 45, 47 ) arranged about the periphery. The tool is rotated and fed relative to the gear to effect machining of at least one tooth surface wherein the machining is carried out in a non-generating manner.
1. A method of machining an internal bevel gear having teeth with a pitch angle greater than 90 degrees, said method comprising:
providing at least one tool rotatable about a tool axis, said tool comprising a disc-shaped body having a periphery and at least one stock removing surface arranged about said periphery,
rotating said at least one tool about a tool axis,
feeding said at least one tool relative to said gear,
machining at least one tooth surface in said gear wherein said machining is carried out in a non-generating manner.
2. The method of claim 1 wherein said tool comprises a cutting tool having at least one cutting blade with a cutting edge.
3. The method of claim 1 wherein said tool is a finishing tool.
4. The method of claim 3 wherein said finishing tool comprises a grinding wheel.
5. The method of claim 1 wherein during said machining, said at least one stock removing surface defines an enveloping plane perpendicular to said tool axis thereby forming a tooth surface profile that is straight.
6. The method of claim 1 wherein during said machining, said at least one stock removing surface defines an enveloping curve thereby forming a tooth surface profile that is curved.
7. The method of claim 1 further comprising positioning said tool axis whereby said machining provides a lengthwise crowning on a tooth surface.
8. The method of claim 2 wherein said disc-shaped body and said at least one stock removing surface are unitary.
9. The method of claim 2 wherein said at least one stock removing surface comprises stick-type cutting blades.
10. The method of claim 2 wherein said at least one stock removing surface comprises replaceable cutting inserts.