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A kind of CNC machining method for special-shaped joint parts

A technology of special-shaped joints and processing methods, which is applied in the field of joint parts and can solve problems such as clamping deformation and parts clamping deformation

Inactive Publication Date: 2011-12-14
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Technical solution: reserve a craft chuck in the blank to solve the problem of clamping deformation of the parts, adopt the method of firstly machining the outer surface by CNC milling, and then machining the inner surface by CNC wire cutting, so as to maximize the precision in the process of parts processing Rigid, relieves machining stress
[0004] The invention provides a numerical control machining method for special-shaped joint parts, which is characterized in that: the process chuck reserved for the part blank is used to solve the problem of clamping deformation of the part, and the outer surface is processed by numerical control milling first, and then the inner surface is processed by numerical control wire cutting. Profile

Method used

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  • A kind of CNC machining method for special-shaped joint parts
  • A kind of CNC machining method for special-shaped joint parts
  • A kind of CNC machining method for special-shaped joint parts

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Experimental program
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Effect test

Embodiment 1

[0036] CNC milling:

[0037] Use UG software to create a 3D model of the part with CNC milling and 3232 sequence, follow the steps of rough milling the side walls→rough milling of the upper and lower profiles→semi-finish milling of the upper and lower profiles→fine milling of the side walls→finish milling of the upper and lower planes→finish milling of the upper arc→ Fine milling of the lower arc → fine milling transfer arc → fine milling of the groove → fine milling of the outer wall of the spigot → clearing the root processing route for NC programming, choosing a four-coordinate vertical machining center equipment, and using the process chuck as part positioning And the clamping datum, take the rotation center of the end face of the joint cylinder as the origin of the workpiece coordinates, create a three-dimensional model of the equipment in the UG software, and import it into ~ERICUT simulation software, and create the post-processing file of the equipment according to the ...

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Abstract

A CNC machining method for special-shaped joint parts. The external surface of the tee joint is divided into the following parts: side wall ①; upper and lower shapes ②; upper arc ③; transfer arc ④; groove ⑤; ⑥; Root ⑦; Process chuck ⑧; It is characterized in that: the process chuck is reserved for the part blank to solve the problem of clamping deformation of the part, and the outer surface is processed by CNC milling first, and then the inner surface is processed by CNC wire cutting. The invention overcomes the requirement that the rigidity of the part is extremely poor during processing, and it is difficult to guarantee the wall thickness of the part along the special-shaped surface. It can be applied to the manufacture of special-shaped joint parts of a machine afterburner main pipe to solve the problem of stress-free processing deformation.

Description

technical field [0001] The invention relates to some joint parts with complex structures and poor rigidity. Simple structure blanks are used to realize the stress-free processing technology of complex structures, especially for the manufacture of special-shaped joint parts of a machine afterburner main pipe, and to solve the problem of stress-free processing deformation. . Background technique [0002] Since there is no casting material for the special-shaped structure tee joint parts on the afterburner main pipe, and the die forging parting is difficult, and the welding structure is not allowed, the development period is short, and the free forging blank is used to manufacture the part, and ordinary processing and clamping are adopted. method, processing deformation is difficult to control. The specific problem is that according to the design basis, the inner surface is processed first, and then the outer surface is processed. The rigidity of the part is extremely poor dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 魏鉴梅赵昌辉李家永张森棠刘艳张同
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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