Process for gear manufacturing machining
AssigneeLiebherr-Verzahntechnik GmbH
InventorRobert WUERFEL
Life of this patent
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Abstract
The present invention shows a process for gear manufacturing machining a workpiece by a tool on a gear manufacturing machine, wherein the workpiece is machined by a generating machining process in which the tool for gear manufacturing machining rolls off on the workpiece at a predefined center distance and axial cross angle, wherein the gear manufacturing machining preferably takes place on two flanks, with a desired tooth trace shape and/or tooth thickness of the gearing being generated by the generating machining process. The process is characterized in that an additional condition is predefinable and in that the center distance and the axial cross angle are determined in dependence on the desired tooth trace shape and/or tooth thickness of the gearing and on the additional condition.
Claims20
A process for gear manufacturing machining a workpiece by a tool on a gear manufacturing machine, wherein the workpiece is machined by a generating machining process in which the tool rolls off the workpiece for the gear manufacturing machining at a predefined center distance and axial cross angle;
- wherein a desired tooth trace shape and/or tooth thickness of the gearing is generated by the generating machining process;
- and wherein an additional condition is predefined and the center distance and the axial cross angle are determined in dependence on the desired tooth trace shape and/or on the tooth thickness of the gearing and on the additional condition.
A gear manufacturing machine having a tool holder and a workpiece holder as well as NC axes for setting a relative position between a tool and the workpiece for gear manufacturing machining of a workpiece held in the workpiece holder by the tool held in the tool holder, having a control for controlling the NC axes for carrying out a generating machining process in which the tool for the gear manufacturing machining rolls off on the workpiece,
- wherein the control has an input function by which a desired tooth trace shape and/or tooth thickness and an additional condition are predefinable;
- and wherein the control has a machining function that sets a center distance and an axial cross angle between the workpiece and the tool in the generating machining such that the machined workpiece has the desired tooth trace shape and/or tooth thickness and satisfies the additional condition, with the tooth thickness generated in a machining stroke and a root radius generated in this machining stroke being separately predefinable by the input function;
- and/or wherein a material removal on a right flank and on a left flank and in the root are separately predefinable.
A calculation apparatus for calculating a relative position between a tool and a workpiece required for the carrying out of a generating machining, having an input function by which a desired tooth trace shape and/or tooth thickness and an additional condition are predefinable;
- and having a determination function that determines a center distance and an axial cross angle between the workpiece and the tool in the generating machining such that the machined workpiece has the predefined tooth trace shape and/or tooth thickness and satisfies the additional condition.
Dependencies are inferred from the claim text.