Method for machining aircraft skin part

A technology for parts processing and aircraft skinning, which is applied in the field of aircraft skinning parts processing, can solve the problems of inability to meet the requirements of the manufacturing process and low processing accuracy, and achieve the effects of shortening the delivery cycle, increasing productivity, and improving production flexibility

Inactive Publication Date: 2015-10-14
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the existing aircraft skin parts have low processing precision and cannot

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Embodiments of the present invention will be described in more detail below in conjunction with examples.

[0018] A method for processing aircraft skin parts, the main process of which is: projecting the three-dimensional process digital analog extraction sample line, chemical milling allowance line, part allowance line, assembly allowance line and positioning hole data on the neutral layer of the part, Then, the neutral layer of the part is expanded with the part margin line to obtain the expanded data set of the part, and the laser cutting machine is used to manufacture a three-dimensional expansion model that meets the processing technology requirements, and the aircraft skin parts are processed.

[0019] The following uses the single-curved surface skin parts to design the digital model of the process, and introduces in detail how to use the generative shape design module of the 3D software and the process requirements to design the neutral layer of the part, and us...

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Abstract

The invention discloses a method for machining an aircraft skin part. The method comprises the following steps that (1) process digital-analog information is extracted; (2) a neutral layer is projected; (3) the neutral layer is unfolded; (4) the unfolding face of the neutral layer is projected; and (5) a chemical milling sample plate and the skin part are machined. The sample plate meeting process requirements is directly produced through three-dimensional unfolding digital-analog calculation. According to the method for machining the aircraft skin part, the manufacturing precision of the part is effectively improved, machining accumulated errors are reduced, and the machining process meets the process manufacturing requirement. Meanwhile, the delivery cycle of the skin part is greatly shortened, and the material utilization rate is improved. An MMS mirror image milling matching edge flexible clamping system is adopted, and the method adapts to skins of various specifications; the space locating and clamping rigidity of workpieces is guaranteed, and productivity and production flexibility are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of aviation manufacturing, in particular to a method for processing aircraft skin parts. Background technique [0002] The traditional aircraft skin parts are first carved on the mold by the mold manufacturing workshop, and the mold line design institute manually processes the three-dimensional milling template according to the mold marking line, and uses the three-dimensional milling template to manufacture. Due to the cumulative processing errors of mold engraving lines and manual processing samples, it cannot meet the requirements of the manufacturing process, and the labor efficiency of manual processing is low. Based on the current processing status, a processing and forming method is urgently needed to make the manufacturing precision and processing technology of the skin chemical milling parts meet the manufacturing requirements. Contents of the invention [0003] In order to solve the technical pr...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/01
Inventor 王恒唐大友刘勤钟国兴张文俊
Owner JIANGXI HONGDU AVIATION IND GRP
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