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A Laser Measuring Probe Device for Measuring Arbitrary Surface Shape and Position Errors

A laser measurement and error technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve Abbe error and other problems, achieve the effect of reducing dust entry, high displacement transmission accuracy, good market application prospects and promotion value

Active Publication Date: 2020-12-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the micro-displacement transfer lever in this invention patent still has Abbe errors during use

Method used

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  • A Laser Measuring Probe Device for Measuring Arbitrary Surface Shape and Position Errors
  • A Laser Measuring Probe Device for Measuring Arbitrary Surface Shape and Position Errors
  • A Laser Measuring Probe Device for Measuring Arbitrary Surface Shape and Position Errors

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Embodiment Construction

[0023] Taking the measurement of any curved surface as an example, the specific implementation method of the present invention is described.

[0024] 1) In order to ensure the smoothness of the displacement transmission of the device, the material of the spring limit plate 2 and the target mirror mounting seat 7 is 304 stainless steel or TC4 titanium alloy;

[0025] 2) Before assembly, refine the spring limit plate 2, guide shaft 4, bushing 6 and target mirror mounting seat 7, and use the high-precision grinding plate that has been lapped to the spring limit plate boss A2-1, spring The limit plate boss C2-3, the end face of the guide shaft 4, the end face of the target mirror mounting seat shaft section A7-1, and the target mirror mounting seat shaft section B7-2 are refined; The hole is refined; the guide shaft 4 is refined by using a high-precision grinding ring; after refinement, the flatness error of the end faces of the spring limit disc boss A2-1 and the spring limit dis...

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Abstract

The invention belongs to the technical field of precision test, and relates to a laser measurement measuring head device for measuring a form and position error of any surface . The device comprises aspherical measuring head, a spring limiting plate, a spring, a guide shaft, a dense bead shaft sleeve, a bushing, a target mirror mounting base, a target mirror and a housing. The device is capable of proportionally converting the displacement of a point testing position into the displacement of the target mirror to achieve precise measurement of a curved surface and a non-reflective surface. Byadjusting the size of the component, the measurement of infinitesimal displacement can be realized, and the measurement of large displacement can be further realized. The displacement transmission components of the device are rigidly connected, and the displacement transmission precision is high; an axis of the device and a normal line of the to-be-tested surface are located on the same straight line, and no measurement abbe error exists. The device has the advantages of simple structure, no measurement abbe error, wide application range and high displacement transmission precision, and has good market application prospects and promotion values.

Description

technical field [0001] The invention belongs to the technical field of precision testing, and relates to a laser measuring probe device for measuring arbitrary surface shape and position errors. Background technique [0002] Due to the unique characteristics of lasers, such as strong directivity, high brightness, good monochromaticity, and good coherence, lasers are often used as light sources for photoelectric ranging. With the development of laser technology, electronic technology, computing technology and integrated optics, laser ranging is developing in the direction of digitalization, automation, low cost, small and light, and the range and accuracy of ranging have also been greatly improved. Laser ranging technology has been widely used in various measurement industries, whether it is in the military field, or in science and technology, production and construction, it plays an important role. Compared with the general optical ranging system, laser ranging has a series...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
CPCG01B11/02
Inventor 凌四营凌明蔡引娣张慧阳高东辉刘瑞坤
Owner DALIAN UNIV OF TECH
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