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Novel gear honing processing method

A processing method and technology of gear honing, which is applied in the field of ultra-precision machining, can solve the problems of short honing wheel accuracy maintenance time, high price of internal gear honing equipment, and inability to improve tooth profile accuracy, so as to achieve long accuracy maintenance time and honing Good performance and the effect of reducing gear noise

Active Publication Date: 2015-03-04
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of internal gear honing equipment is very high, and it is difficult to promote it in China
External gear honing machine tools are simple in structure, low in cost, widely used, high in productivity and high in cutting speed. The main reason for their limited application is that two problems have not been well resolved: first, it cannot improve the tooth profile accuracy , and produces a concave tooth shape; second, the honing wheel maintains accuracy for a short time

Method used

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Embodiment Construction

[0036] The present invention is described below in conjunction with concrete processing example:

[0037] First of all, it is necessary to select the honing wheel according to the parameters of the gear to be machined. It adopts a special honing wheel. During the honing process, the axial tooth shape of the honing wheel is the same as that of the rack. The honing wheel and the gear to be machined rotate at the same time. The odd-numbered tooth surface I is thinned, the even-numbered tooth surface II is ground down, and the honing process is all completed by the odd-numbered tooth surface I of the honing wheel. The thinning amount is:

[0038] b = ( z 1 × tan α + h a 2 + ...

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Abstract

The invention relates to a novel gear honing processing method and belongs to the field of ultraprecision machining. The shortcomings that a concave tooth form is generated and honing wheel precision retention time is short in an ordinary outer meshing gear honing method are overcome extremely well through the novel gear honing processing method. A honing wheel in special design is utilized, even number tooth surfaces II of identical-side tooth surfaces in a honing wheel shaft plane are reduced relative to odd number tooth surfaces I, the coincidence degree between the honing wheel and a processed gear is smaller than or equal to 1 in honing, cutting force is kept constant from a tooth top to a tooth root when every tooth surface is honed, and generation of the concave tooth form in the ordinary outer meshing gear honing method is avoided.

Description

technical field [0001] The invention relates to a special gear honing processing method, which belongs to the field of ultra-precision processing. Background technique [0002] Gear is an important basic transmission part, which is irreplaceable and has long been regarded as a symbol of industrialization. my country has become a big country in gear manufacturing. In 2012, the market size of gear products in my country has exceeded 195.8 billion yuan, ranking second in the world, but it is not yet a powerful country in gear manufacturing. [0003] In practical applications, in order to realize the continuous transmission of gears, the gear contact ratio is required to be greater than 1. The degree of coincidence greater than 1 means that the next pair of teeth has entered meshing before the end of meshing of a pair of teeth, thus ensuring the continuity of transmission, such as figure 1 shown. exist figure 1 In the first stage, the i-th pair of teeth has just entered mesh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F19/05
Inventor 石照耀林家春于渤
Owner BEIJING UNIV OF TECH
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