Polishing method for precision hole

A processing method and fine polishing technology, applied in the field of high-precision hole processing of metal parts, can solve the problems of substandard fatigue life of parts and products, low processing quality stability, low processing efficiency, etc. The effect of stable product quality and high processing efficiency

Active Publication Date: 2020-12-08
JIANGXI CHANGHE AVIATION IND
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the embodiment of the present invention provides a precision hole polishing method to solve the problems of low processing efficiency, high cost, low stability of processing quality, and low processing efficiency in the existing processing technology of precision holes. Problems such as substandard fatigue life of parts and products

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  • Polishing method for precision hole
  • Polishing method for precision hole
  • Polishing method for precision hole

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Embodiment Construction

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0037] It has been explained in the above background technology that in the processing technology of precision holes, there are generally problems of low processing efficiency and high cost, due to the influence of factors such as equipment positioning accuracy, the problem of low stability of processing quality, and due to local out-of-tolerance or Factors such as out-of-tolerance roundness lead to poor product consistency and have a greater impact on the fatigue life of parts and products.

[0038] In view of the above-mentioned various problems, the embodiment of the prese...

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Abstract

The embodiment of the invention discloses a polishing method for a precision hole. An elastic polishing wheel in interference fit with a hole to be polished is adopted for carrying out polishing. Themethod comprises the steps that firstly, pretreatment before the precision hole is polished is carried out, and the hole to be polished is manufactured in a part base body; secondly, rough polishing of the precision hole is carried out, and the allowance of the diameter of the roughly polished hole to be polished meets the requirement for hole bottom allowance of fine polishing; and thirdly, finepolishing of the precision hole is carried out, and the precision hole obtained after multiple times of fine polishing meets the requirements for size precision and surface quality. Interference fit between the elastic polishing wheel and the to-be-polished hole formed in the step one means that the diameter of the elastic polishing wheel is larger than the diameter of the to-be-polished hole. According to the embodiment, the method solves the problems that in an existing machining technology of the precision hole, generally, machining efficiency is low, cost is high, stability of machining quality is not high, and the fatigue life of parts and products does not reach the standard.

Description

technical field [0001] This application relates to but not limited to the technical field of high-precision hole processing of metal parts, especially a method for polishing precision holes. Background technique [0002] There are a large number of grade 6 precision holes in the main life parts of helicopters. For these grade 6 precision holes, boring, grinding and other processing techniques are usually used at present. [0003] In the prior art, the processing technology of the above-mentioned 6-level precision hole usually has the problems of low processing efficiency and high cost; in addition, due to factors such as equipment positioning accuracy, the stability of processing quality is not high, and fitter polishing is easy to cause Partially out-of-tolerance hole diameter or out-of-tolerance roundness make the product consistency poor, which has a great impact on the fatigue life of parts, which is likely to cause problems such as substandard fatigue life of the produc...

Claims

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Application Information

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IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 陶剑锋游其其王鹏
Owner JIANGXI CHANGHE AVIATION IND
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