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Method for detecting emergy wheel surface topography using laser scan triangular method

A laser scanning, grinding wheel surface technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of longer measurement time and low measurement efficiency.

Inactive Publication Date: 2005-03-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

The three-coordinate measurement method uses a mechanical contact probe. If the measurement distance is 0.1mm, to measure the shape of a 5mm×5mm area on the surface of the grinding wheel, it is necessary to measure the height of 2500 points point by point. If a smaller measurement is used distance, there will be more measurement points, so the measurement takes longer and the measurement efficiency is very low

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  • Method for detecting emergy wheel surface topography using laser scan triangular method

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Embodiment Construction

[0017] Below in conjunction with the detection system shown in the accompanying drawings, the specific implementation method of the present invention is described as follows:

[0018] A laser scanning triangulation detection system consisting of a Replica500 laser scanning system, an analog-to-digital conversion module 5 and a computer 6 is adopted, wherein the Replica500 laser scanning system is composed of a Replica500 laser scanning head and a scanning table 7, and the Replica500 laser scanning head consists of two lens groups 1 , two position sensors 2, and a neon laser 3; select the 46# particle size resin bond SiC grinding wheel 4 (250×70×25) with organization number 5 as the tested grinding wheel;

[0019] In the first step, before the measurement, the SiC grinding wheel 4 is firstly dressed with a single-point diamond pen;

[0020] In the second step, place the trimmed resin-bonded SiC grinding wheel 4 on the scanning table 7 directly under the Laser scanning head of t...

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Abstract

A method of detecting appearance of emery wheel surface by laser scanning triangle method1 belongs to mechanical engineering detection technical field. Firstly, refit emery wheel; the emery wheel refitted is fixed just under laser scan head whose position is adjusted to make laser light beam from neon laser parallel with y-z plane and the laser light beam irradiate the emery wheel surface; adjust output power and width of light beam of neon laser; make laser scan head move along direction of x axis, the scanning table move along negative direction of y axis, then laser scan head move along negative direction of x axis; transformation of position of reflection point on three-dimensional surface in Z axis direction cause corresponding position transformation of image on position sensor of light spot, location value of the latter through AD conversion is sent into computer; calculate height value of every tested point in z direction on the surface. The method can not only accurately test emery wheel appearance of surface qualitatively but also has fast testing speed, high accuracy and notable economical benefit.

Description

technical field [0001] The invention relates to a method for detecting the surface topography of a non-contact grinding wheel, in particular to a method for detecting the surface topography of a grinding wheel by using a laser scanning triangulation method, which belongs to the technical field of mechanical engineering detection. Background technique [0002] The surface topography of the grinding wheel is one of the important factors affecting the grinding process. The surface topography of the grinding wheel not only has random properties, but also changes dynamically during the grinding process, which brings great difficulties to the research. At present, although some theoretical models can be established for the surface topography of the grinding wheel, many simplifications are often made when establishing these models, which greatly limits the scope of application of the model. The computer simulation of the surface morphology of the grinding wheel was carried out by ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/30
Inventor 陈明孙方宏马玉平
Owner SHANGHAI JIAO TONG UNIV
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