A tooth milling method for spiral bevel gears based on tooth surface contact analysis

A technology of spiral bevel gears and contact analysis, applied in the direction of components with teeth, belts/chains/gears, gear teeth, etc., can solve problems such as low efficiency, reduce positioning accuracy errors, improve efficiency, and improve the consistency of accuracy sexual effect

Active Publication Date: 2018-09-18
常州市格里森前进齿轮有限公司
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AI Technical Summary

Problems solved by technology

[0004] Spiral bevel gears and hyperbolic gears have different requirements on the contact area according to the requirements of use, such as the length, width and position of the contact area. If the whole process method is used for processing, it is first necessary to solve how to control the technical requirements of the contact area. The length of the area is mainly controlled by changing the diameter of the cutter head, so generally two different diameters of the cutter head are used to control the length of the contact area of ​​the concave-convex surface of the gear; in this way, the milling / grinding process must require two different cutter heads, Only the second clamping can complete the whole processing process, and the efficiency is low

Method used

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Embodiment Construction

[0016] The present invention will now be described in detail.

[0017] A tooth milling method of spiral bevel gears based on the tooth surface contact analysis of the present invention has the characteristics: one cutter head can complete the processing of two different curved surfaces in one clamping to improve production efficiency, and the large gear and the small gear only need one knife to complete The complete processing of milling teeth greatly reduces the adjustment time, reduces the milling time and improves work efficiency.

[0018] By changing the pressure angle of the inner and outer cutters to replace two cutter heads with different diameters, when the pressure angle of the outer cutter decreases and the pressure angle of the inner cutter increases, the contact area becomes longer; otherwise, when the pressure angle of the outer cutter increases and the inner cutter pressure angle increases, the contact area becomes longer. As the knife pressure angle decreases, t...

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Abstract

The invention provides a gear-milling method of a curve-tooth bevel gear based on tooth contact analysis. A rack wheel and a pinion are fully milled by one cut by means of clamping at one time by using a cutterhead without repeated adjustment. When an engineer calculates an adjustment card, the engineer can accurately estimate the contact quality of the gear. The positioning precision error caused by clamping many times is reduced by clamping at one time, so that the precision consistency of the gear is improved. Most importantly, control of a contact region of a concave-convex surface of the pinion is accomplished at one time, so that the efficiency is improved. The milling method is a relatively advanced gear-milling and gear-grinding step which is efficient, economical and easy to operate and has promotional value.

Description

technical field [0001] The invention relates to a tooth milling method of a spiral bevel gear based on tooth surface contact analysis. Background technique [0002] According to the traditional milling method, most of the rough milling of the large wheel, the fine milling of the large wheel, the rough milling of the small wheel, the concave surface of the small wheel, and the convex surface of the small wheel are generally used. The five processes are collectively referred to as the five-knife method. It has been widely used to control the quality of the contact area between concave and convex surfaces. Its weaknesses are low efficiency, large number of cutter heads, high skill requirements for adjustment workers, difficult quality control, and poor product consistency. [0003] With the development of science and technology, a new generation of five-axis linkage CNC gear milling machine is born, such as the Phoenix II 275HC, 600HC in the United States, domestic JCB32, JCB6...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F9/08
CPCB23F9/08
Inventor 蒋荣坤
Owner 常州市格里森前进齿轮有限公司
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