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Spiral gear tooth form turning method

A technology of helical gears and tooth shapes, applied in the direction of gear teeth, components with teeth, belts/chains/gears, etc., can solve the problems of long cycle, long production preparation cycle, and less preparation content for milling teeth, and achieve the development cycle Short, tooling cost reduction, reliable processing effect

Inactive Publication Date: 2015-03-04
SHAANXI AVIATION ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with gear hobbing and gear shaping, broaching is the most efficient, but it is limited to spur gear tooth profile processing, and broaching has certain restrictions on the part structure (to ensure the passability of the broach), and is mainly used for inner parts with better rigidity. Gear tooth profile processing, long production preparation period
[0006] Compared with the previous three methods, there are less preparations for tooth milling. The combination of general fixtures and special tooth-shaped tools is enough. Add a transmission chain with axial and circular synthetic motion to make the two transmission chains move in conjunction. The process of adding a transmission chain is cumbersome and the cycle is long
[0007] The above four general tooth profile processing methods restrict the progress of new product research due to production preparation cycle factors

Method used

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Embodiment Construction

[0023] Describe the present invention below in conjunction with specific embodiment:

[0024] Such as figure 1 As shown, there is a helical gear in the middle section of the workpiece to be processed in this embodiment, which is right-handed, the number of teeth Z=12, the tooth profile angle is 40°, the pressure angle is 20°, the pitch circle diameter is Φ15, the tooth height coefficient ha=1, and the helical gear The rising angle is 18°, the normal modulus Mn=1.25, and the precision grade is 8-GB / T10095.1-2001.

[0025] The steps of implementing the helical gear tooth profile turning method are:

[0026] Step 1: Design and prepare the knife.

[0027] Considering the large amount of material to be removed, the large impact force during cutting, and the large thread lead, the cutters are divided into two sets, which are used for rough turning and finishing turning of the helical gear tooth profile respectively. For the tool, it is required that the shape of the tool tip of t...

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Abstract

The invention provides a spiral gear tooth form turning method. Firstly, a cutter is designed and prepared; then, spiral parameters are determined; and finally, a numerical control lathe thread picking program is programmed according to the spiral parameters, and a numerical control lathe is controlled to use the prepared cutter for circularly picking threads to realize the spiral gear tooth form turning. The spiral gear tooth form turning method has the following beneficial effects: a numerical control turning method is adopted; such special complex forming cutters as tooth form slotting tool, milling cutter, hobbing cutter and broaching tool have no need to be customized; the spiral gear tooth form machining can be finished in a shorter period only by sharpening a single tooth form turning tool; and a convenient and reliable machining process is provided for the gear tooth form machining. The spiral gear tooth form turning method can be applied to a product development stage or a single small-batch production phase, is short in development stage, is much lower in tool cost, and is economic and practical.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing technology, and specifically relates to a turning method of a helical gear tooth profile, which uses the turning process to complete the machining of the helical gear tooth profile. Background technique [0002] Generally speaking, the processing methods of gear tooth profile include hobbing, shaping, milling, broaching, etc., and each processing method has its own application scope. [0003] Gear shaping is mainly used in the processing of straight teeth in mass production, and special gear shaping cutters need to be customized on the gear shaping machine tool. The production preparation content is mainly the customization of gear shaping fixtures and special gear shaping tools, and the production preparation period is relatively long. , It is mostly used in straight tooth internal and external gear tooth profile processing. [0004] Gear hobbing is similar to gear shaping, and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F9/00
Inventor 宁智博
Owner SHAANXI AVIATION ELECTRICAL
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