US 10,569,349 B2Granted

Process for gear manufacturing machining

AssigneeLiebherr-Verzahntechnik GmbH

InventorRobert Wuerfel

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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.

Claims17

Dependent claims

A process for machining a workpiece with a tool on a gear manufacturing machine to manufacture a gearing on the workpiece, comprising:

specifying at least one out of a desired tooth trace shape and a tooth thickness of teeth of the gearing on the workpiece;
specifying, in addition to the at least one out of the desired tooth trace shape and tooth thickness, an additional condition relating to at least one out of a profile shape of the gearing, a root clearance of the tool, and a tip clearance of the tool;
determining, in dependence on the additional condition and the at least one out of the desired tooth trace shape and tooth thickness, a center distance, the center distance being a minimal distance between an axis of rotation of the tool and an axis of rotation of the workpiece, and an axial cross angle between the axis of rotation of the tool and the axis of rotation of the workpiece;
and
machining the workpiece with the tool using a generating machining process, wherein the tool is positioned relative to the workpiece with the determined center distance and the axial cross angle between the axis of rotation of the tool and the axis of rotation of the workpiece.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/499,629Filed 27 Apr 2017
Priority: DE 10 2016 005 25728 Apr 2016
Published: US 2018/0161896 A114 Jun 2018
Granted: 25 Feb 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

B23F 5/04
By grinding: the tool being a grinding worm
B23F 1/02
Making gear teeth by tools of which the profile matches the profile of the required surface: by grinding
B23F 5/02
Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear…:…
B23F 19/002
Finishing gear teeth by other tools than those used for manufacturing gear teeth: modifying the theoretical tooth flank form, e.g. crowning

Family

US 2018/0161896 A1Pre-grant publication · published 14 Jun 2018
US 10,569,349 B2This patent

From the US filing history. Foreign family members aren’t listed.

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