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Portable reverse measuring system for area-structure light

A surface structured light and measurement system technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of inability to measure large workpieces, achieve the effect of easy use and portability, and improve measurement speed and accuracy

Inactive Publication Date: 2007-05-30
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the wide application of reverse design technology in automobiles, large molds, aerospace, shipbuilding and other industries, the demand for measurement of large workpieces is increasing. Space constraints, unable to measure large workpieces

Method used

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  • Portable reverse measuring system for area-structure light
  • Portable reverse measuring system for area-structure light
  • Portable reverse measuring system for area-structure light

Examples

Experimental program
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Embodiment Construction

[0012] The present invention will be described in further detail below according to the accompanying drawings and examples.

[0013] The measuring system of the present invention consists of two parts: a flexible measuring arm and a measuring head, and the measuring head can be a contact measuring head or a raster scanning head.

[0014] When a contact measuring head is used, its structure is shown in Figure 1. The flexible measuring arm includes a base 1, a first revolving joint 2, a second revolving joint 3, a first carbon fiber tube 8, a third revolving joint connected in sequence The joint 4, the fourth revolving joint 5, the second carbon fiber tube 9, the fifth revolving joint 6 and the sixth revolving joint 7 are composed. Each revolving joint is connected by a rotating shaft in turn, and each revolving joint can freely rotate around the rotating shaft. Each rotary joint is equipped with an angle encoder that records the rotation angle of the joint, and the angle data o...

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PUM

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Abstract

A portable face structure counter light measuring system is disclosed that includes flexible gauge beam and gauge outfit. Thereinto,the flexible gauge beam consists of base plate connected with rotation axis, first pivot joint, second pivot joint, first carbon fiber pipe, third pivot joint, fourth pivot joint, second carbon fiber pipe, fifth pivot joint, and sixth pivot joint. Each pivot joint can rotate with its rotation axis freely; the wireless transmission angular encoders are mounted on the pivot joint. Said gauge outfit connects with the sixth pivot joint via rotation axis. Said gauge outfit is contact-making gauge outfit or raster scanning head. The invention uses the data of critical characteristic dimension and contour acquired by contact-making gauge outfit and the cloud point data of complex work surface acquired by the raster scanning head, the data measured by two methods can be converted into the same coordinate system to improve the measurement velocity and accuracy. The portable flexible gauge beam can rotate freely, it is convenient to use and carry.

Description

technical field [0001] The invention belongs to the field of reverse engineering measurement, in particular to a portable surface structured light reverse measurement system. Background technique [0002] Reverse engineering plays an important role in shortening the product design cycle and assimilating advanced technologies and products at home and abroad. The quality of reverse engineering measurement equipment directly affects the accuracy and completeness of the description of the measured entity, and then affects the quality of the reconstructed CAD surface and solid model, which is the basis of reverse engineering. [0003] At present, the most widely used measurement equipment in the field of reverse design mainly includes the following four types: contact coordinate measurement system, three-dimensional laser scanning measurement system, flexible three-dimensional coordinate measurement system, and raster scanning measurement system. Contact three-coordinate measure...

Claims

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Application Information

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IPC IPC(8): G01B11/00
Inventor 王从军史玉升黄树槐周钢李中伟李强
Owner HUAZHONG UNIV OF SCI & TECH
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