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Method and device for hard-fine machining internally toothed gearwheels by means of a toothed honing machine

A technology of gear honing machine and internal teeth, which is applied in the field of machining workpieces with internal teeth, can solve the problems of high cost, increased wear and noise, huge cost, etc.

Active Publication Date: 2019-03-15
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, hard tooth flank finishing is not carried out in series production because of the very high costs involved in hard tooth flank finishing
[0003] Lack of hard tooth surface finishing leads to poorer quality than externally toothed gears, i.e. lower wear and possibly increased noise emission when running in transmissions, for example
Conventional methods for finishing hard tooth flanks of gears with internal teeth, for example by means of profile grinding, involve enormous costs

Method used

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  • Method and device for hard-fine machining internally toothed gearwheels by means of a toothed honing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] exist figure 1 A workpiece 1 in the form of a gear with internal teeth is shown in . The workpiece 1 is clamped in a gear honing machine (not shown) in the position where a honing ring is normally clamped when the gear honing machine is used for honing.

[0037] In order to be able to harden the tooth flanks, that is to say in particular the tooth flanks and / or tooth roots of the workpiece 1, it is proposed that the tool 3 is inserted into the gear honing machine in such a position that when the gear honing machine is used for honing, Usually the workpiece is clamped in this position. That is to say that the tool 3 and the workpiece 1 are arranged at an axial angle and rotated so that material is removed on the corresponding toothing of the workpiece 1 . In this case, the tool 3 can be moved along the axis 15 of the tool 3 , as indicated by the arrow 13 . It is also possible to move the workpiece 1 itself, as indicated by the arrow 7 , in order to assist the rolling ...

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PUM

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Abstract

The invention relates to a method for machining an internally toothed workpiece, wherein the workpiece is clamped into a toothed honing machine, and wherein at least one tool that is at least partially made of a high-hardness cutting material, is guided along respective teeth of the internally toothed workpiece in order to carry out hard-fine machining of the teeth of the internally toothed workpiece.

Description

technical field [0001] The invention relates to a method for machining workpieces with internal teeth, as well as a tool and a gear honing / grinding / gear machining machine. Background technique [0002] Ring gears with internal teeth, that is to say gear wheels with internal teeth, are used in transmissions, for example planetary gears. It is customary to increase the quality level of the internal toothing of the gearwheel to the quality level typical for gearwheels with external toothing at very high cost. In the prior art, the internal toothing of the corresponding gear is machined from a soft material and then hardened. In particular, hard tooth flank finishing is not carried out in series production, since hard tooth flank finishing involves very large costs. [0003] The lack of hard tooth surface finishing leads to a lower quality than an external toothing, ie, for example, lower wear and possibly increased noise emission when running in a transmission. Conventional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F23/12B23F19/05B24B53/075
CPCB23F23/1231B23F19/05B24B53/075B23F19/057
Inventor M·海尔曼T·施梅尔P·布拉托夫斯基
Owner AUDI AG
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