Method of producing a workpiece having a modified gearing geometry
AssigneeLiebherr-Verzahntechnik GmbH
InventorsRobert Wuerfel, Hansjoerg Geiser
Life of this patent
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Abstract
A method of producing a workpiece having a modified gearing geometry by a generating method includes generating machining the workpiece in at least one machining stroke with a tool having a modified gearing geometry and a topological modification. Provision is made that the contact path with the workpiece is not shifted on the tool during the machining stroke. In one example, a cylindrical workpiece is machined by an axial generating method. In another example, a conical workpiece is machined by a diagonal generating method, and the diagonal ratio is selected such that the contact path does not shift on the tool during the machining stroke.
Claims27
A method of producing a workpiece having a desired profile modification by a generating method, wherein the workpiece is generating machined in at least one machining stroke by a tool having a modified gearing geometry, with the tool having a topological modification,
- wherein a contact path with the workpiece is not shifted on the tool during the machining stroke,
- wherein the generating method is carried out with the contact path with the workpiece being a defined contact path on the tool, and
- wherein at least one out of the topological modification of the tool and the defined contact path on the tool is selected so that the topological modification of the tool along the defined contact path on the tool has a shape so that it produces the desired profile modification on the workpiece.
A method of producing a workpiece having a modified gearing geometry by a generating method, wherein the workpiece is generating machining in at least one machining stroke by a tool having a modified gearing geometry, with the tool having a topological modification,
- wherein a contact path with the workpiece is not shifted on the tool during the machining stroke, wherein a dresser is used for dressing the tool in line contact, where the dresser is designed for a tool having a different macrogeometry including a different diameter and/or a different number of threads;
- wherein a modification of a surface geometry of the tool at a selected contact path with the workpiece produced by a non-matching dresser is compensated in that a position of the dresser with respect to the tool during dressing is suitably varied in dependence on an angle of rotation of the tool and/or on a tool width position;
- and wherein the generating method is carried out using the selected contact path with the workpiece.
A method of producing a workpiece having a modified gearing geometry by a generating method, wherein the workpiece is generating machining in at least one machining stroke by a tool having a modified gearing geometry, with the tool having a topological modification,
- wherein a contact path with the workpiece is not shifted on the tool during the machining stroke,
- wherein the method is used for manufacturing a workpiece having a desired gearing geometry using a suitably dressed tool, the method comprising:
- specifying a desired profile modification on the workpiece;
- selecting a combination of a dresser and the tool from a plurality of combinations which produces smallest deviations from the desired profile modification on the workpiece without a modification of a dressing process;
- performing a modified dressing of the tool with the dresser in line contact for producing the topological modification of the tool to compensate the deviations;
- and
- machining the workpiece with the dressed tool with the contact path unchanged over the machining stroke to produce the desired profile modification on the workpiece, and
- wherein the dressers and/or tools are an at least partly specified or already existing range.
Dependencies are inferred from the claim text.