Tooth surface distortion compensation method during worm wheel grinding of axial modified helical gear

A technology of worm grinding wheel and compensation method, which is applied in the field of tooth surface distortion compensation when grinding helical gear worm grinding wheel with tooth direction modification, and can solve the problems of technical blockade, inability to know the principle and implementation process, etc.

Inactive Publication Date: 2018-01-26
CHONGQING TECH & BUSINESS UNIV +1
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Problems solved by technology

Although the gear grinding machine tools developed by foreign gear machine tool manufacturers such as Reishauer and Gleason have the funct

Method used

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  • Tooth surface distortion compensation method during worm wheel grinding of axial modified helical gear
  • Tooth surface distortion compensation method during worm wheel grinding of axial modified helical gear
  • Tooth surface distortion compensation method during worm wheel grinding of axial modified helical gear

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] The distortion of the tooth surface refers to the phenomenon that the profile of the end section of the gear is gradually twisted in the tooth width direction, and the error value of the profile of the profile of the end section of the gear is equal to the error value at the top of the tooth minus the error value at the root of the tooth. Since there are tooth profile errors in the cross-sectional profile of each end of the tooth surface, and the tooth profile error changes continuously with the tooth profile modification curve, the absolute value of the tooth profile error at the upper and lower end surfaces of the general tooth surface is the largest, and the upper and lower end surfaces One of the tooth profile errors is a positive ...

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Abstract

The invention relates to a tooth surface distortion compensation method during worm wheel grinding of an axial modified helical gear. The method solves the problem of tooth surface distortion when worm wheel grinding is conducted on a helical gear with axial modification, calculates the additional motion quantity of a grinding wheel during worm wheel dressing according to the warp quantum of a tooth surface on the basis of building a tooth surface warp quantum calculation model during worm wheel grinding of the axial modified helical gear, overlays additional motion on conventional worm wheeldressing motion to change a pressure angle of left and right tooth surfaces of the grinding wheel, and compensates tooth surface distortion by continuously changing the pressure angle in a width direction of the grinding wheel aiming at a continuous change trend of a profile pressure angle of a gear end section during tooth surface distortion, thereby improving the accuracy of worm wheel grindingof the axial modified helical gear.

Description

technical field [0001] The invention belongs to the technical field of gear manufacturing, and in particular relates to a method for compensating tooth surface distortion during grinding of a helical gear worm grinding wheel with tooth orientation modification. Background technique [0002] As the entire machinery industry has higher and higher requirements for gear performance and transmission accuracy, traditional gear design and machining accuracy can no longer meet the needs of the industry. In order to meet the requirements of high speed, heavy load, low noise and long life of modern mechanical transmission, it is necessary to modify the tooth shape of the gear under the premise of ensuring the machining accuracy of the gear. The existing processing method follows the processing principle of the helical tooth surface, and realizes the modification of the tooth profile of the gear by changing the machining trajectory of the tool. However, due to the inherent motion geom...

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Application Information

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IPC IPC(8): B23F23/10
Inventor 何坤李国龙杜彦斌
Owner CHONGQING TECH & BUSINESS UNIV
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