Method and apparatus for hard finishing modified gears
AssigneeLiebherr-Verzahntechnik GmbH
InventorsHansjoerg Geiser, Robert Wuerfel
Life of this patent
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Abstract
The present disclosure relates to generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing. In at least one example, the modified gear flank geometry of the workpiece may be generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool. Additionally, the workpiece may comprise a cylindrical spur gear, a helical gear, a spherical gear, or a conical gear. Further, in one or more examples, the modified gear flank geometry of the workpiece includes at least one of a profile waviness or a defined periodic flank waviness.
Claims21
A method for manufacturing a workpiece, comprising:
- generating a modified gear flank geometry on an active surface of the workpiece by generation grinding or honing,
- wherein the modified gear flank geometry of the workpiece is generated on the active surface of the workpiece by variation of an engagement depth of a tool into the workpiece in dependence on an angle of rotation of the tool,
- wherein the tool is a worm grinding wheel, and
- wherein a second infeed axle, which is seated on a first radial infeed axle, is used for generating radial movements of the worm grinding wheel for the variation of the engagement depth of the worm grinding wheel into the workpiece in dependence on the angle of rotation of the worm grinding wheel.
A method for manufacturing a workpiece, comprising:
- machining the workpiece by generation grinding using a worm grinding wheel, and
- in a step of machining the workpiece,
- generating a modified gear flank geometry on a surface of the workpiece by variation of an engagement depth of the worm grinding wheel into the workpiece in dependence on an angle of rotation of the worm grinding wheel,
- wherein an infeed axle is used for generating radial movements of the worm grinding wheel for the variation of the engagement depth of the worm grinding wheel into the workpiece in dependence on the angle of rotation of the worm grinding wheel.
A method for manufacturing a workpiece, comprising:
- machining the workpiece by generation grinding or honing using a generation grinding or honing tool, and
- in a step of machining the workpiece,
- generating a modified gear flank geometry on an active surface of the workpiece by variation of an engagement depth of the tool into the workpiece in dependence on an angle of rotation of the tool, wherein the tool is a worm grinding wheel, and wherein an infeed axle is used for generating radial movements of the worm grinding wheel for the variation of the engagement depth of the worm grinding wheel into the workpiece in dependence on the angle of rotation of the worm grinding wheel, and
- wherein the modified gear flank geometry of the workpiece has a constant value at least locally in a first direction of the workpiece and is further given by a predefined function in a second direction of the workpiece which extends perpendicular to the first direction of the workpiece.
Dependencies are inferred from the claim text.