A numerical control machining method for precision deep groove parts

A processing method and deep groove technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of dimensional accuracy and surface roughness deviation, and achieve the effects of improving service life, ensuring surface roughness, and improving processing efficiency

Active Publication Date: 2021-06-04
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems of deep groove dimensional accuracy and surface roughness deviation of precision deep groove parts, the invention provides a numerical control machining method for precision deep groove parts

Method used

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  • A numerical control machining method for precision deep groove parts
  • A numerical control machining method for precision deep groove parts
  • A numerical control machining method for precision deep groove parts

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Embodiment Construction

[0020] In order to deepen the understanding of the present invention, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. The embodiments described in this specification are only used to explain the present invention, and are not intended to limit the present invention.

[0021] figure 2 and image 3 As shown, a kind of numerical control processing method of precision deep groove type parts of the present invention comprises the following steps:

[0022] (1) Use a horizontal CNC machine tool for rough machining of the front and back stations of precision deep groove parts, adopt radial and then axial layered milling, and leave a margin of 1.5 to 2.5mm for precision deep grooves.

[0023] The use of horizontal CNC machine tools is beneficial to the chip removal and temperature diffusion of the deep groove structure, and can effectively control the deformation of the precision deep groove.

[0024] (2) Place the ro...

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Abstract

The invention discloses a numerical control machining method for precision deep groove parts, which comprises the following steps: (1) adopting a horizontal numerical control machine tool for rough machining of the front and back stations of the precision deep groove parts, adopting radial first and then axial division Layer milling, leaving a margin of 1.5-2.5mm for precision deep grooves; (2) Place the rough-machined parts that require aging in a natural state; (3) Finish the front and back of the parts, use a custom-made internal cooling milling cutter to spiral along the inner contour The processing method of line layering is used for semi-finishing the precision deep groove, leaving a margin of 0.15-0.3mm, and then finishing in place. The custom-made special internal cooling milling cutter is used to solve the problem of tool vibration and tool clearance. The machining method along the inner contour spiral oblique line effectively reduces the number of times of cutting and retracting, ensures surface roughness, improves processing efficiency, and reduces Vibration and shock increase the life of tools and equipment.

Description

technical field [0001] The invention relates to a numerical control machining method for aviation machinery parts, in particular to a numerical control machining method for precision deep groove parts. Background technique [0002] With the improvement of aircraft performance requirements, the precision requirements of parts are also higher. The traditional hole shaft cylindrical surface fit is changed to square groove and bump fit, especially for the processing of precision deep groove parts. The deep groove of this kind of parts can reach 100mm. Even 200mm, the groove width accuracy reaches IT7~IT9, and the surface roughness reaches Ra1.6. The current deep groove processing technology mainly includes: ①Using the plunge milling CNC machining method, leaving 0.02-0.1mm margin on the side, and then grinding it in place by the fitter. This method has a long processing cycle and requires very high technical ability of the fitter. ②Using the numerical control machining method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/404
CPCG05B19/404
Inventor 徐明向兵飞周造文刘彤王建军熊勇谢云龙龙鼎文蒋杨帅
Owner JIANGXI HONGDU AVIATION IND GRP
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