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Double circular arc harmonic wave wheel gear shaped cutter

A technology of harmonic gear and gear shaping cutter, which is applied in gear tooth manufacturing tools, gear tooth manufacturing devices, belts/chains/gears, etc., and can solve problems such as harmonic gear transmission that cannot be used with elliptical wave generators

Inactive Publication Date: 2008-03-05
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On this basis, they developed their own double-arc tooth profiles, but for the reasons mentioned above, these tooth profiles cannot be used for harmonic gear drives with elliptical wave generators

Method used

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  • Double circular arc harmonic wave wheel gear shaped cutter
  • Double circular arc harmonic wave wheel gear shaped cutter
  • Double circular arc harmonic wave wheel gear shaped cutter

Examples

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Embodiment Construction

[0020] As shown in Figure 1, the main structural dimensions of the gear shaper cutter are the outer diameter De, the tool installation inner hole d, and the diameter d 1 , d 2 , pitch circle diameter do, number of teeth, thickness H, addendum relief angle α P And addendum rake angle γ, etc., its structural design is similar to that of general involute gear shaper cutter. Addendum relief angle α P Generally, it is 6°, and the rake angle of addendum γ is 0°-5°. The teeth of the gear shaping cutter can be straight teeth, helical teeth or a stepped structure with multiple rake faces, and the gear shaping cutter can be of disc, bowl or shank structure.

[0021] The main difference between the double-arc harmonic gear shaper cutter and the general involute gear shaper cutter lies in its basic tooth profile.

[0022] As shown in Figure 2, those with an asterisk are the coefficients of the corresponding parameters divided by the modulus m, such as the radius coefficient of the con...

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PUM

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Abstract

The present invention is one slotting cutter for double arc harmonic gear. The slotting cutter has the following basic tooth profile parameters: addendum arc radius coefficient of 0.2-0.9, addendum coefficient h*a=0.7-1.2, dedendum coefficient h*f=0.7-1.2, dedendum gap coefficient C*a=0.2-0.3, tooth depth coefficient h*=1.4-2.4, convex tooth profile arc radius coefficient of 1.4-2.0, convex tooth profile center shift coefficient X*a=0-0.5, convex tooth profile center offset coefficient l*a=0.4-1.2, concave tooth profile arc radius coefficient of 1.4-2.0, concave tooth profile center shift coefficient X*f=1.4-2.0, concave tooth profile center offset coefficient l*f=0.4-1.2, technological angle of 6-12 deg, and dedendum arc radius coefficient of 0.1-0.4.

Description

technical field [0001] The invention relates to a gear shaper cutter, in particular to a gear shaper cutter used for machining double-arc harmonic gear transmission gears. Background technique [0002] Harmonic transmission technology is a new type of transmission technology that appeared on the basis of elastic thin shell theory with the development of space science and aerospace technology in the middle of the 20th century. It has the advantages of high motion precision, large transmission ratio, light weight, small size, large carrying capacity, and can work normally in confined spaces and medium radiation conditions. It has been successfully applied in space technology, instrumentation, robots, printing, etc. Machinery and medical equipment and other fields. [0003] The main criteria for the working ability of harmonic gear transmission can be listed as the following aspects: the fatigue strength of the flex spline, the wear of the gear teeth, the slippage of the gear ...

Claims

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Application Information

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IPC IPC(8): B23F21/04B23F21/06
Inventor 辛洪兵
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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