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Method for machining worm-gear pair

A worm gear, worm gear technology, applied in the direction of worm gear, worm, components with teeth, etc., can solve the problem that it is difficult for manufacturers to provide a wide variety of special worm gear hob.

Inactive Publication Date: 2014-03-26
SINOSTEEL HENGYANG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the processing of worm gears in general enterprises, each size of worm gear needs a dedicated worm gear hob, and it is difficult for general manufacturers to provide such a wide variety of dedicated worm gear hobs

Method used

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  • Method for machining worm-gear pair
  • Method for machining worm-gear pair
  • Method for machining worm-gear pair

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Embodiment Construction

[0019] The technical solution for processing worm gears is based on the meshing principle of involute helical gears. According to this principle, to make the standard gear hob mesh with the processed worm gear, it must be ensured that the standard gear hob and the processed worm gear have a common normal modulus. Same as the pressure angle. To make the gear hob and the processed worm wheel have the same normal direction, the helix angles of the two must be complementary. Such as figure 1 In the case of machining a right-handed worm gear as shown, the helix angle β of the general standard gear hob 1 2 and the helix angle β of the worm wheel to be processed 1 Not complementary, and therefore no common normal. In order to make the gear hob 1 and the processed worm wheel 2 have a common normal direction, first place the end faces of the standard gear hob 1 and the processed worm wheel 2 perpendicular to each other, and keep the two radially connected, and the direction of the h...

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Abstract

The invention relates to a method for machining a worm gear through a standard gear hob and machining a worm meshed with the worm gear through a turning tool. According to the technical scheme, the standard gear hob is selected, wherein the nominal modulus and the pressure angle of the standard gear hob are equal to the nominal modulus and the pressure angle of the worm gear to be machined, the diameter of the standard gear hob is larger than that of the worm meshed with the worm gear to be machined, and the axial length of the standard gear hob is larger than the rim width of the worm gear to be machined; the standard gear hob is placed perpendicular to the end face of the worm gear to be machined, wherein the standard gear hob and the worm gear to be machined are kept connected in the radial direction, and the spiral line directions are approximately the same; then, the standard gear hob is rotated by an angle theta, so that the spiral line of the standard gear hob and the spiral line of the worm gear to be machined completely coincide. When a single-start worm is machined, the modulus mc and the pressure angle alpha c of the turning tool are equal to the nominal modulus m0 and the pressure angle alpha0 of the worm respectively; when a multi-start worm is machined, the following relation between the modulus mc and the pressure angle alpha c of the turning tool and the nominal modulus m0 and the pressure angle alpha0 of the worm is met.

Description

technical field [0001] The invention relates to a method for machining a worm gear pair. Background technique [0002] For the processing of worm gears in general enterprises, each size of worm gear needs a dedicated worm gear hob, but it is difficult for general manufacturers to provide such a wide variety of dedicated worm gear hobs. Contents of the invention [0003] The invention relates to a method for machining a worm gear with a standard gear hob and a method for machining a worm meshed with it with a turning tool. [0004] Technical scheme of the present invention is: [0005] 1) Select the standard gear hob, the nominal modulus and pressure angle of the standard gear hob are equal to the nominal modulus and pressure angle of the worm gear to be processed, and the diameter of the standard gear hob is larger than the diameter of the worm gear to be processed The diameter of the worm, the axial length of the standard gear hob is greater than the rim width of the pr...

Claims

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Application Information

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IPC IPC(8): B23F11/00B23F13/00
Inventor 李克诚李英姿
Owner SINOSTEEL HENGYANG MACHINERY
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