Method and device for machining tooth profile of inner gear with drum-shaped worm tool

A drum-shaped worm and internal gear technology, applied in the direction of gear teeth, elements with teeth, belts/chains/gears, etc., can solve the problems that internal gears and worms are impossible and have no effect

Active Publication Date: 2014-02-19
陈谦 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, limited by the transmission principle, the worm gear transmission can only be an external meshing transmission. So far, there is no meshing theory to study the meshing relationship between the worm and the internal gear, because intuitively, the meshing of the internal gear and the worm is almost impossible or has no effect. of
In fact, this is a huge misunderstanding

Method used

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  • Method and device for machining tooth profile of inner gear with drum-shaped worm tool
  • Method and device for machining tooth profile of inner gear with drum-shaped worm tool
  • Method and device for machining tooth profile of inner gear with drum-shaped worm tool

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Embodiment Construction

[0039] The present invention includes a method and apparatus for machining the tooth profile of an internal gear using a drum worm tool.

[0040] Among them, including a method of machining the tooth profile of an internal gear using a drum-shaped worm tool, see Figure 1a , 1b , 1c, 2a, 2b, 2c. The specific steps of the method are as follows:

[0041] Step 1: Design a flat or short drum-shaped worm tool, such as Figure 1c as shown in item 02 or Figure 2c Shown in 02'. The worm grinding wheel can be made as a single-head or multi-head worm, and the worm is located on an annulus, and the radius of the parent circle of the annulus is Figure 1c or Figure 2c The pitch circle radius R0 of the imaginary gears C1 and C2 in . In the figure, the cross-sectional shape of the gear teeth on C2 is the shape obtained by rotating the cross-section on C1 by half the pitch angle (when the worm is a single-head worm) or multiple half-pitch angles equal to the number of worm heads. Th...

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Abstract

The invention discloses a device for machining the tooth profile of an inner gear with a drum-shaped worm tool. According to the device, a machine tool body is formed by a machine tool stand column (1) and a machine tool base (0), and the machine tool body is connected with a perpendicular feed motion unit (2), a worm tool driving power head (3), a workpiece rotation motion unit (4), a horizontal workpiece feed motion unit (5), a worm tool opening and closing unit (6) and a power head swing motion unit (7). A method for machining the tooth profile of the inner gear with the drum-shaped worm tool includes four major steps. The drum-shaped worm tool is divided into two parts and opened or closed in proper time before or after machining, the surface of the inner gear with a small diameter can be machined with a large-diameter tool, the inner gear can be machined continuously, and thus the machining efficiency is greatly improved; effects of worm rotation errors on the machining precision can be reduced by increasing the rotation radius of the drum-shaped worm tool, and therefore the method can also be used for machining precision inner gears.

Description

technical field [0001] The invention relates to a method and a device for machining an internal gear tooth profile by using a drum-shaped worm tool, and belongs to the technical field of mechanical transmission and machining. Background technique [0002] The internal gear is an important transmission element that constitutes the planetary reducer and the harmonic reducer. At present, the gear shaping method is generally used for processing. The processing efficiency is low, the processing accuracy is not easy to improve, and it cannot meet the requirements of high-performance reducer manufacturing. Using superabrasives to form grinding wheels and grinding internal gears by forming method is the main process method to realize internal gear machining with hard tooth surface at present, but this method is restricted by various factors such as tool size and stiffness, grinding wheel precision and cost, etc. It is difficult to be widely used without it. Corresponding to this si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F5/04
Inventor 陈谦王俊岭
Owner 陈谦
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