Gear shaping processing method of noncircular gear

A non-circular gear and tooth processing technology, applied in the direction of belts/chains/gears, gear teeth, components with teeth, etc., which can solve the problems of complex electrical systems and mechanical devices

Active Publication Date: 2015-08-05
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the control is better realized and more intuitive, but the machine tool needs four-axis linkage control, and its electrical system and mechanical device are relatively complicated.

Method used

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  • Gear shaping processing method of noncircular gear
  • Gear shaping processing method of noncircular gear
  • Gear shaping processing method of noncircular gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] Here, a pair of sinusoidal transmission ratio third-order non-circular gear transmission is taken as an example, and the processing is carried out according to the above method. The parameters of the gear are shown in Table 1.

[0076] Table 1 Basic parameters of gears

[0077]

[0078] According to the above basic parameters and the basic definition of non-circular gears, the pitch curve of the driving wheel is obtained

[0079]

[0080] Pitch curve of driven wheel:

[0081] Angle of driven wheel:

[0082] Number of teeth of the driven wheel:

[0083] The arc length of the driving pitch curve:

[0084] So the modulus of the gear:

[0085] Calculate the addendum h of the non-circular gear according to Table 1 a =h a * m=2.5, according to formula (3), the wheel blank of non-circular gear can be determined as figure 1 , figure 2 shown. According to the formula (13), the non-circular gear, the starting position of the tool setting of the driving...

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Abstract

The invention discloses a gear shaping processing method of a noncircular gear. According to parameters (node curve, modulus and center distance) and processing parameters of the noncircular gear, the movement locus of each shaft of a noncircular gear numerical control gear shaping machine is calculated through comprehensive considering the cutting output, the tool retraction and the positioning reference to generate processing codes; the noncircular gear can be processed on a common numerical control gear shaping machine; and the processing method has such characteristics of high processing efficiency, good processing precision and low comprehensive cost.

Description

technical field [0001] The invention relates to a gear shaping processing method, in particular to a non-circular gear shaping processing method. Background technique [0002] Non-circular gears are used to transmit non-uniform motion between two shafts. Compared with other non-uniform speed ratio transmission mechanisms (such as cams, connecting rods, etc.), they have the advantages of stable transmission, compact structure, and high motion precision. They are widely used in textile, Cigarette, paper and other machinery and equipment. However, because the pitch curve is non-circular, the design and manufacture are much more complicated than circular gears, and three-dimensional modeling is particularly difficult. [0003] The motion characteristic of non-circular gears is that it can realize the nonlinear relationship between the rotation angles of the active mechanism and the driven mechanism, so it has been paid more and more attention in light industry, heavy industry, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F5/12
Inventor 华林郑方焱韩星会
Owner WUHAN UNIV OF TECH
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