Gear line structured light fast scanning measurement method based on tooth surface contact line measurement

A technology of fast scanning and measurement methods, applied in measurement devices, optical devices, instruments, etc., can solve problems such as reducing measurement accuracy, and achieve the effects of adjustable range, high accuracy, and easy installation and maintenance.

Active Publication Date: 2019-03-08
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty of measuring gears with line structured light is that the steep tooth surface near the tooth root seriously reduces the measurement accuracy

Method used

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  • Gear line structured light fast scanning measurement method based on tooth surface contact line measurement
  • Gear line structured light fast scanning measurement method based on tooth surface contact line measurement
  • Gear line structured light fast scanning measurement method based on tooth surface contact line measurement

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Experimental program
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Embodiment Construction

[0026] The present invention is described below in conjunction with concrete processing example:

[0027] The helical involute cylindrical gear is used as the tested gear, its parameters: normal pressure angle α n =27.5°, normal modulus m n =3, number of teeth z=27, helix angle β=18°, right-handed, addendum height ha=2.527, dedendum height hf=3.75.

[0028] The steps of a gear line structured light rapid scanning measurement method based on tooth surface contact line measurement are as follows:

[0029] S1: Establish a three-dimensional mathematical model of a helical involute cylindrical gear.

[0030] established as figure 1 The coordinate system shown, where δ 0 (O 0 ;X 0 ,Y 0 ,Z 0 ) is the stationary coordinate system where the measured involute cylindrical gear is located, δ 0 is the coordinate system of the three-dimensional model of the measured involute cylindrical gear, δ 0 is the stationary coordinate system; O 0 is the center of symmetry of the base circl...

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Abstract

The invention discloses a gear line structured light fast scanning measurement method based on tooth surface contact line measurement, and the gear line structured light fast scanning measurement method includes: establishing a three-dimensional mathematical model of a measured involute cylindrical gear, and performing motion control planning on a linear structured light sensor measuring head; thelinear structured light sensor measuring head is used for replacing a traditional contact measuring head to scan the contact line of the measured involute cylindrical gear, compared with other measurement method, the gear line structured light fast scanning measurement method has better measurement precision, the advantages of fast optical measurement, no measuring head and tested part abrasion,high data correlation, convenient installation and maintenance, and the like can be kept, and the precision of meeting the measurement requirements can be obtained. According to the measurement method, and the characteristic that the contact line of the involute cylindrical gear is a straight line and the advantage that the linear measuring accuracy of linear structured light is high are fully utilized, so that high-precision optical rapid and full-information measurement of the gear is realized.

Description

technical field [0001] The invention relates to a gear line structured light rapid scanning measurement method, in particular to a gear line structured light rapid scanning measurement method based on tooth surface contact line measurement, belonging to the fields of precision testing technology and gear detection. Background technique [0002] As an important basic transmission part, gear has the advantages of large load capacity, high transmission precision and constant transmission power, and has become a key component for transmitting motion and power in various mechanical equipment. Therefore, ensuring the quality of gears is an important part of promoting gear manufacturing and wide application. It is particularly important to further develop modern gear measurement technology, continuously improve measurement accuracy, and quickly obtain full information data on gear tooth surfaces. At present, the acquisition technology of gear tooth surface information is mainly di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 石照耀孙衍强于渤宋辉旭陈洪芳郭晓忠王涛
Owner BEIJING UNIV OF TECH
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