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Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter

A technology for gear shaving cutters and gears, which is applied in the direction of gear tooth manufacturing tools, gear tooth manufacturing devices, and components with teeth, etc. It can solve the problems of poor base joint accuracy, high noise, and troublesome processing of convex gears, etc., and achieve improved The level of shaving technology, good precision, and the effect of improving gear noise

Inactive Publication Date: 2012-05-30
GUIZHOU QUNJIAN PRECISION MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects of troublesome processing of convex gears, poor base joint precision and high noise in the prior art, and provide a method for processing convex gears with a modified gear shaving cutter and the processing method shaving cutters used in

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  • Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter
  • Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter
  • Method for processing middle convex gear by adopting shaving cutter and modified shaving cutter

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Embodiment Construction

[0019] Processing workpiece parameters and tooth profile requirements: modulus m=1.5mm, tooth number z=65, pressure angle α=20o, tooth profile Ff=0.015mm, tooth profile convexity ε=0.005mm.

[0020] Shape modification shaving cutter: m=1.5mm, number of teeth z=195, pressure angle α=20o, number of shaving cutter teeth is 195, and the tooth shape of 195 cutter teeth is a standard involute. Among them, there are 90 tooth thickness thinning cutter teeth, with a thinning amount of 0.003-0.005mm; 90 alveolar thinning cutter teeth, with a thinning amount of 0.003-0.005mm; and 15 normal cutter teeth. The arrangement positions of the three types of cutter teeth on the gear shaving cutter are: 6 thick and thin cutter teeth, 1 normal cutter tooth, and 6 alveolar thin cutter teeth are alternately distributed.

[0021] When using the above-mentioned modified gear shaving cutter to process the workpiece, the common gear shaving process is adopted, namely: rough machining of the gear base, h...

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Abstract

The invention discloses a method for processing a middle convex gear and a modified shaving cutter. The method comprises a gear blank rough machining procedure, a thermally treating procedure, a gear blank finish machining procedure, a gear hobbing procedure before shaving and a shaving procedure, wherein in the shaving procedure, the modified saving cutter with three kinds of cutter teeth is used for processing the middle convex gear; the modified shaving cutter consists of three kinds of cutter teeth, i.e., normal cutter teeth of a standard shaving cutter, cutter teeth formed by reducing the entire tooth profile tooth thickness of the normal cutter teeth of the standard shaving cutter, and cutter teeth formed by thinning the entire tooth profile tooth socket of the normal cutter teeth of the standard shaving cutter; the three kinds of cutter teeth are distributed alternatively at intervals on the shaving cutter; and the tooth profiles of the three kinds of cutter teeth are standard involutes. In the invention, the shaving cutter is used for processing the middle convex gear, and an ideal convex tooth profile can be obtained by selecting a reasonable thinning way and a reasonable thinning amount for the cutter teeth of the shaving cutter; and the tooth profiles of the three kinds of cutter teeth are standard involutes, so that a processed gear base pitch has high accuracy, and gear noise is remarkably lowered.

Description

technical field [0001] The invention relates to the technical field of gear processing, in particular to a method for processing convex gears with a modified gear shaving cutter and the used modified gear shaving cutter. Background technique [0002] With the continuous deepening and development of gear noise research, people gradually realize that the gear tooth profile error is one of the main factors affecting gear noise, and the tooth profile error is the main factor among them. In the case of the same tooth profile error value, the gear with a concave tooth profile has much more noise than the gear with a convex tooth profile. For example, two gears with a modulus of 2 mm and a number of teeth of 48 teeth have the same tooth profile error value of 0.015 mm, but one tooth profile is concave and the other is convex, and the noise difference between the two is as high as 8-10 decibels. [0003] Shaving is a commonly used method in gear machining. At present, most profess...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14B23F19/06B23F21/28
Inventor 石年平
Owner GUIZHOU QUNJIAN PRECISION MACHINERY
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