System and method for measuring gear 3D profile based on line laser scanning

A three-dimensional profile and line laser technology, applied in the field of measurement, can solve problems such as unsatisfactory real-time detection, complex structure of measuring equipment, complex gear shape, etc., and achieve the effects of large variable range of equipment volume, convenient measurement and calculation, and high precision

Inactive Publication Date: 2016-07-20
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The disadvantages of the existing detection equipment and methods are: (1) the contact measurement of the gear has a certain influence on the surface of the gear, and for large gears, the measurement equipment needs a large volume to meet the measurement requirements; (2) the shape of

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  • System and method for measuring gear 3D profile based on line laser scanning
  • System and method for measuring gear 3D profile based on line laser scanning
  • System and method for measuring gear 3D profile based on line laser scanning

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Embodiment Construction

[0021] combine figure 1 , this embodiment discloses a method for detecting a three-dimensional profile of a gear, comprising:

[0022] Gear 3D profile imaging system, gear 3D profile measurement system; among them,

[0023] The gear three-dimensional profile imaging system includes a first CCD2, a second CCD3, a line laser 1, an object stage 5, a rotary encoder, and a stepping motor, and the gear three-dimensional profile measurement system includes an image acquisition card 6 and a PC7. The first CCD2 and the second CCD3 are connected with the image acquisition card 6, and the CCD is connected with the image acquisition card, and the input and output of PC control data are arranged, and the image acquisition card 6, the rotary encoder, and the stepper motor are connected with the PC7 , the PC7 controls the acquisition of the image acquisition card 6, the PC7 controls the opening and closing of the stepping motor, the PC controls the opening and closing of the rotary encoder,...

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Abstract

The invention provides a system and method for measuring a gear 3D profile based on line laser scanning. The system includes a line laser, a first image sensor, a second image sensor, an objective table, an image acquisition card, a rotary encoder, a stepping motor, and a terminal with an operation function. The gear to be tested is disposed on the objective table. The line laser is disposed right in front of the gear to be tested. The first image sensor and the second image sensor are arranged on two sides of the line laser separately and have lenses directing at a direction which intersects an optical axis of the line laser at an included angle. The first image sensor and the second image sensor are in electrical connection with the image acquisition card. The rotary encoder is placed on the objective table and is connected to the terminal for recording rotation angles of the gear to be tested. The stepping motor serves to drive the objective table to rotate and is controlled by the terminal. The image acquisition card is connected to the terminal for controlling synchronous on-off and acquisition of the first image sensor and the second image sensor. The terminal serves to establish the 3D profile of the gear.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a gear three-dimensional profile measurement system and method based on line laser scanning. Background technique [0002] As a key basic transmission component in the aerospace industry and mechanical equipment manufacturing industry, gears play an important role in enhancing the core competitiveness of my country's equipment manufacturing industry. The quality of the gear directly affects the performance of the product. Therefore, it is particularly important to measure the parameters of the gear to determine its qualification. However, due to the complex shape of the gear, the large number of measurement parameters, and the difficulty of measurement technology, its measurement has always been a difficult point in geometric measurement, which needs to be solved continuously. [0003] Although the application of gears has a long history, the research on gear measurement technology an...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01B11/2416
Inventor 陈文建顾可可李武森
Owner NANJING UNIV OF SCI & TECH
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