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Stress-free clamping method for datum plane machining of open thin-walled part

A thin-walled parts, stress-free technology, applied in metal processing equipment, metal processing machinery parts, clamping, etc., can solve processing and other problems, achieve the effect of improving rigidity, ensuring processing accuracy, and suppressing milling chatter

Inactive Publication Date: 2020-05-29
CNGC INST NO 206 OF CHINA ARMS IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to avoid the deficiencies of the prior art, the present invention proposes a stress-free clamping method to solve the problem of datum plane processing before the finishing of thin-walled parts with openings

Method used

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  • Stress-free clamping method for datum plane machining of open thin-walled part

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Embodiment Construction

[0023] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0024] Technical scheme of the present invention is as follows:

[0025] 1) Clamping elements

[0026] The invention includes the following clamping elements: base, hot-melt glue, and low melting point alloy.

[0027] 2) Clamping principle

[0028] The base is the basic element of the clamping method, and it is the intermediate body between the open thin-walled parts and the vise fixture of the machine tool. Its main function is to provide reference positioning and workpiece support for the open thin-walled parts, and at the same time as a filling pool for low melting point alloys;

[0029] Hot melt adhesive is an important element in the clamping method. It is used to limit the position of the open thin-walled parts in the base, and prevent the impact and flow of the low-melting alloy solution from causing the parts to be out of position, which in turn causes ...

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Abstract

The invention relates to a stress-free clamping method for datum plane machining of an open thin-walled part. According to the method, the open thin-walled part can keep a stress-free clamping state during datum plane machining, thereby meeting machining precision requirements. The method is characterized in that a base serves as a hardware basis, hot melt adhesive and low-melting-point alloy serve as an important element and a main element respectively, the position of the open thin-wall part in the base is limited through the hot melt adhesive, then the low-melting-point alloy subjected to solid-liquid conversion at a certain temperature provides supporting force and rigidity for the open thin-wall part, and finally datum plane milling before finish machining of the open thin-wall part can be achieved.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a stress-free clamping method, which can keep an open thin-walled part in a stress-free state when processing a datum plane and meet the requirements of processing accuracy. Background technique [0002] The special structure of thin-walled parts with openings makes their torsion resistance weak, rough machining, heat treatment and other processes are likely to cause distortion and deformation, causing the reference plane to warp, so milling must be re-milled before finishing to ensure that the final machining shape and position accuracy meets Indicator requirements. [0003] In the milling process of parts, positioning and clamping is an extremely important link, which is related to many factors such as workpiece accuracy, production safety, and processing efficiency. At present, the clamping forms of parts mainly include the following types: clampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/08
CPCB23Q3/065B23Q3/084
Inventor 王磊贾广杰
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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