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A Method of Spiral Bevel Gear Addendum Chamfering Based on Solid Contact Analysis

A spiral bevel gear and contact analysis technology, applied in the field of gear processing, can solve problems such as difficult to guarantee processing quality, asymmetrical addendum curve, and low processing efficiency, and achieve low production preparation costs, optimized grinding wheel cone angle, and high processing efficiency Effect

Inactive Publication Date: 2018-02-27
YANGTZE UNIVERSITY
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  • Application Information

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Problems solved by technology

In the field of gear chamfering, there are mature processing methods and equipment for cylindrical spur gears, cylindrical helical gears, and conical spur gears, while spiral bevel gears have complex addendum curves and different addendum curves on both sides of the convex and concave surfaces. Symmetry makes chamfering difficult
In order to solve the problem of chamfering of spiral bevel gears, one method is to use a milling cutter disc or a grinding wheel to chamfer one side and then chamfer the other side. This processing efficiency is low and only suitable for several specific processing methods. Manufactured gears; another method is manual chamfering, which has good versatility but lower processing efficiency, and the processing quality is difficult to guarantee

Method used

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  • A Method of Spiral Bevel Gear Addendum Chamfering Based on Solid Contact Analysis
  • A Method of Spiral Bevel Gear Addendum Chamfering Based on Solid Contact Analysis
  • A Method of Spiral Bevel Gear Addendum Chamfering Based on Solid Contact Analysis

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Embodiment Construction

[0054] The invention first establishes the solid model of the spiral bevel gear and the conical grinding wheel, and then determines the spatial motion relationship between the grinding wheel and the gear by using the solid contact analysis method based on the principle that the grinding wheel cuts into the maximum depth along the direction perpendicular to the face cone. The chamfering simulation processing is completed based on the spatial motion relationship. By analyzing the chamfering effect of the solid model after simulation processing, the optimized grinding wheel cone angle is determined, so that the chamfering effect can be optimal. According to the structure of the selected universal five-axis machining center, calculate the motion parameters of X, Y, Z, A, B axes, and finally output the NC code for chamfering machining; the details are as follows:

[0055] The shaft profile of the gear is figure 1 , x in the figure is the axial direction of the gear, y is the radia...

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Abstract

The invention relates to a helical bevel gear tooth crest edge chamfering method based on entity contact analysis and belongs to the technical field of gear machining. The helical bevel gear tooth crest edge chamfering method comprises the steps of gear entity modeling, edge chamfering machining parameter calculation, edge chamfering simulation machining, grinding wheel cone angle optimization and numerical control code output of edge chamfering machining. By the adoption of the helical bevel gear tooth crest edge chamfering method, various spiral bevel gears can be machined by adding a conical grinding wheel on a spindle of a five-axis machining center without manufacturing of special machine tools, and the production and preparation costs are low. According to the method, tooth crests on two side can be simultaneously machined in the one-pass process, and the machining efficiency is high. A grinding wheel cone angle is optimized by analyzing the volume of an entity model after machining, and accordingly the best edge chamfering effect is achieved.

Description

technical field [0001] The invention relates to a method for chamfering the tooth top of a spiral bevel gear based on entity contact analysis, which belongs to the technical field of gear processing. Background technique [0002] After the gear processing is completed, in order to prevent the tooth top from scraping on the mating tooth surface, resulting in gear transmission instability and stress concentration, it is necessary to perform tooth top chamfering. In the field of gear chamfering, there are mature processing methods and equipment for cylindrical spur gears, cylindrical helical gears, and conical spur gears, while spiral bevel gears have complex addendum curves and different addendum curves on both sides of the convex and concave surfaces. Symmetry makes chamfering more difficult. In order to solve the problem of chamfering of spiral bevel gears, one method is to use a milling cutter disc or a grinding wheel to chamfer one side and then chamfer the other side. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F19/12
CPCB23F19/12
Inventor 魏巍
Owner YANGTZE UNIVERSITY
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