Hole making normal interpolation correction method for five-axis numerical control hole making machine tool

A technology for controlling holes and machine tools, applied in program control, computer control, general control systems, etc., can solve the problems of inaccurate normal measurement, affecting the overall efficiency of hole making, and inability to correct, and achieve the effect of improving hole making efficiency.

Active Publication Date: 2019-06-14
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With these methods, each hole to be processed on the aircraft panel needs to be corrected in real time when making holes, which not only affects the overall efficiency of hole making, but also the laser beam may be injected into the processed holes when the hole positions are densely distributed, resulting in The problem that the normal measurement is inaccurate and cannot be corrected

Method used

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  • Hole making normal interpolation correction method for five-axis numerical control hole making machine tool
  • Hole making normal interpolation correction method for five-axis numerical control hole making machine tool
  • Hole making normal interpolation correction method for five-axis numerical control hole making machine tool

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Embodiment

[0039] figure 1 A schematic diagram of a hole-making area for an aircraft panel, where P 1 ,P 2 ,P 3 ,P 4 are four reference holes, and P is any hole to be processed in this area. See figure 2 , which includes the following steps:

[0040] S101, the machine tool moves to P 1 ,P 2 ,P 3 ,P 4 At the four reference holes, the positions of the four reference holes are obtained from the digital model of the product to be processed, and the angle values ​​of the two rotation axes of the machine tool (referring to the A axis and the B axis, the same below) are respectively recorded, that is, A 1 , B 1 , A 2 , B 2 , A 3 , B 3 , A 4 , B 4 ;

[0041] S102, the machine tool is at P 1 ,P 2 ,P 3 ,P 4 Correct the normal direction of the single hole at the four reference holes respectively, and record the angle value of the two rotation axes of the machine tool after the normal direction correction, that is, A′ 1 , B' 1 , A' 2 , B' 2 , A' 3 , B' 3 , A' 4 , B' 4 ;...

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Abstract

The invention discloses a hole making normal interpolation correction method for a five-axis numerical control hole making machine tool, and belongs to the field of automatic hole making in aircraft digital assembly. The hole making normal interpolation correction method includes the steps that firstly, the angle error amount of two rotary axes (the A axis and the B axis) of the machine tool before and after normal correction at four reference holes in a hole making area is calculated, then the angle error amount of the two rotary axes of the machine tool at to-be-machined holes is calculatedthrough a bilinear interpolation method, and finally, the angle error is compensated to correct a hole making normal. According to the hole making normal interpolation correction method for the five-axis numerical control hole making machine tool, the hole making normal precision can be guaranteed, and the problems that the single hole normal correction efficiency is low, and part of the hole location normal is difficult to correct when hole location distribution is dense can also be solved.

Description

technical field [0001] The invention relates to the field of automatic hole making in aircraft digital assembly, in particular to a hole making normal direction interpolation correction method of a five-axis number control hole machine tool. Background technique [0002] In the process of aircraft assembly, the connection between structural parts is mainly based on mechanical connection, so the hole making operation is a crucial link in aircraft assembly. In traditional aircraft assembly, manual drilling is the main method, and the quality of drilling depends heavily on the experience, technology and working conditions of workers, which makes it difficult for the quality of drilling to meet the requirements of aircraft assembly. [0003] With the development of the automation industry, hole making is gradually moving toward automation and digitization. There are a lot of related research on automatic hole-making technology at home and abroad. Foreign companies such as EI, G...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/41
Inventor 郭英杰罗群董辉跃柯映林
Owner ZHEJIANG UNIV
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