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Geometry Parameter Positioning Method for Spatial Large Size Components

A positioning method and a technology with large space, applied in the field of measurement, can solve the problems of low accuracy, blocking light, poor stability, etc., to achieve high measurement positioning accuracy, improve work efficiency, and easy to operate.

Active Publication Date: 2021-04-20
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Method 1. Use the method of scribing. This method is simple and easy to implement, but the defect of this method is that the accuracy is too low, the error is very large, and it is difficult to solve the problem of positioning and installation with dihedral angles.
[0004] Method 2: The large-scale central positioning method in space is mostly completed by a portable laser tracker. Due to the complexity of the space test bench, there will be light blocking phenomena, and it is difficult to arrange the laser transfer station, and the positioning and installation of the portable laser tracker is difficult, and the stability is poor. Measurement The result is not accurate

Method used

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  • Geometry Parameter Positioning Method for Spatial Large Size Components
  • Geometry Parameter Positioning Method for Spatial Large Size Components
  • Geometry Parameter Positioning Method for Spatial Large Size Components

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practice...

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Abstract

The present invention proposes a method for measuring and positioning geometric parameters of large-scale parts in space, wherein the method includes: selecting a substrate whose flatness and straightness meet the specified requirements as a benchmark for measurement, combining auxiliary measuring equipment such as a total station and a level, Construct the spatial geometric trigonometric function relationship, and use the strategy of reverse thinking to realize the geometric parameter positioning and installation method of large-scale components. It overcomes the defects of high cost and difficult implementation of the traditional measurement method, ensures high measurement and positioning accuracy, is easy to operate, and improves work efficiency, and the reliability of the method can be verified by experiments.

Description

technical field [0001] The measurement field of the present invention relates to the improvement of a large-scale spatial geometric parameter measurement and positioning method. Background technique [0002] In the process of aircraft development, a large number of test benches are used, the height of which is tens of meters high. The spatial geometric relationship of , involving length, dihedral angle and other issues. There is no reference for the installation of this installation part, so when installing this part, it is necessary to design a reference plane, and use auxiliary devices such as a total station and a level to centrally position and install the part. The existing centering positioning installation methods mainly include. [0003] Method 1. Use the method of scribing. This method is simple and easy to implement, but the defect of this method is that the accuracy is too low, the error is very large, and it is difficult to solve the problem of positioning and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/00G01B11/00
CPCG01B11/00G01C15/002
Inventor 解岩王海英唐矗宋一罡闫美佳
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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