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Numerical control processing method and device for complex molded surface of rotor blade of air compressor

A compressor rotor and processing method technology, which is applied in the field of mechanical processing of special parts, can solve the problem that complex compressor rotor blade profiles are difficult to achieve precision numerical control machining, and achieve the effects of reducing deformation, improving processing efficiency, and ensuring surface quality

Active Publication Date: 2017-02-01
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to provide a numerical control machining method and device for complex compressor rotor blade profiles, and to solve the problem that complex compressor rotor blade profiles are difficult to realize precise numerical control machining

Method used

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  • Numerical control processing method and device for complex molded surface of rotor blade of air compressor
  • Numerical control processing method and device for complex molded surface of rotor blade of air compressor

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Embodiment Construction

[0020] like figure 1 As shown, it is the clamping method of the rotor blade of the compressor in the present invention, one end is positioned with the chuck 1 to clamp the blade 2 tenon 3, and the other end clamps the blade 2 through the spring chuck 4 connected to the cylinder 5 to assist in tensioning , Trim the edge with a cylindrical milling cutter to remove the margin of the front and rear edges of the blade 2, then spirally mill the blade body with a cylindrical milling cutter, rough and finely mill the edge plate with a ball-end cutter, and finally spirally mill the root of the blade 2 with a ball-end cutter.

[0021] Specifically, the numerical control processing method that the present invention provides is as follows:

[0022] 1. Determine the tool radius according to the curvature radius of the blade shape. Under the condition that the curvature radius allows, use a cylindrical cutter as much as possible to increase the tool processing step distance and improve proc...

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PUM

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Abstract

The invention discloses a numerical control processing method and device for a complex molded surface of a rotor blade of an air compressor. The processing method comprises the steps of clamping the blade, selecting a milling cutter, and determining the milling mode of the blade and the milling sequence of the blade, wherein the back end of the blade is clamped through tightening; the milling cutter adopts a cylindrical cutter; the milling mode of the blade is spiral surrounding milling; and the milling sequence of the blade is that firstly, the edge is cut, then, a blade body is milled, then, a margin plate is milled, and finally, a root is milled. According to the processing method, the deformation in processing is reduced, the geometric accuracy and positional accuracy of the blade are guaranteed, the service life of the cutter is prolonged, the integrity of the blade surface is improved, the processing efficiency is improved, and the problems of overcutting and disorder of a cutter path are solved.

Description

technical field [0001] The invention relates to a numerically controlled machining method for complex compressor rotor blade profiles, and belongs to the field of mechanical machining of special parts. Background technique [0002] Aeroengine blades are technology-intensive, high-input, and high-risk products, which have a direct impact on the safety and reliability of aeroengine work. The compressor is one of the most critical components of an aero-engine, which has a direct impact on the engine's thrust-to-weight ratio, life, reliability, safety, and maintainability. [0003] For the processing of compressor blades, foreign advanced aero-engine enterprises have relatively advanced and mature surface precision forging, surface precision rolling, precision electrolysis, EDM, profile precision CNC milling, profile precision CNC grinding, profile Automatic finishing and polishing technology. However, these advanced manufacturing technologies have always been regarded as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/02
CPCB23P15/02
Inventor 王家俊夏玥赵万平殷明罗江
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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