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Abrasive particle contour evaluation method for large-abrasive-particle superhard abrasive grinding wheel

A super-hard abrasive and evaluation method technology, applied in image data processing, special data processing applications, instruments, etc., can solve the problems of difficulty in obtaining information on the height of abrasive grains, difficulty in evaluating the iso-height, and achieve the effect of high-efficiency evaluation.

Active Publication Date: 2021-09-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of difficulty in obtaining information on the overall height of all abrasive grains in the existing superabrasive grinding wheel with large abrasive grains and difficulty in evaluating equal heights

Method used

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  • Abrasive particle contour evaluation method for large-abrasive-particle superhard abrasive grinding wheel
  • Abrasive particle contour evaluation method for large-abrasive-particle superhard abrasive grinding wheel
  • Abrasive particle contour evaluation method for large-abrasive-particle superhard abrasive grinding wheel

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Experimental program
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Effect test

Embodiment 1

[0057] The three-dimensional data on the surface of the brazed diamond grinding wheel with orderly arrangement of abrasive grains before and after shaping was detected by an ultra-high-speed profile measuring instrument (KEYENCE, LJ-V7060, Japan). Before testing, adjust the installation fixture to ensure that the circular runout of the grinding wheel is within 10 μm (measured with a dial gauge). Among them, the measurement range of the ultra-high-speed profile measuring instrument z Shaft 60±8mm, x Shaft 15 mm, repeatability: z axis 0.4 μm, x Axis 5 μm, spot diameter: about 21 mm×45 μm, number of profile data: 800 points, blue semiconductor laser, wavelength 405 nm, output power 10 mW, spot diameter about 21 mm×45 μm, profile data interval ( x axis) 20 μm, sampling frequency 1000 Hz, grinding wheel speed 10 rad / s. Orderly arrangement of abrasive grains Brazed diamond large abrasive grain superabrasive grinding wheel Ultra-high-speed profile measuring instrument Surface thr...

Embodiment 2

[0079] The difference with embodiment 1 is: this embodiment adopts The electroplated large abrasive superabrasive grinding wheel was used as the research object, and the grinding wheel was shaped by mechanical methods such as Cr12 stainless steel and oil stone. Set the grinding wheel speed, feed speed, dressing depth, and dressing time according to the diameter of the grinding wheel and the size of the abrasive grain. Then the method of the present invention is used to evaluate the abrasiveness of the grinding wheel.

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Abstract

The invention discloses an abrasive particle contour evaluation method for a large-abrasive-particle superhard abrasive grinding wheel, and belongs to the technical field of grinding wheel dressing and image recognition processing. The method comprises the steps that firstly, three-dimensional data of the surface of the large-abrasive-particle super-hard abrasive grinding wheel are detected through an ultra-high-speed contour measuring instrument, and before detection, it is guaranteed that the circle run-out of the grinding wheel is within 10 micrometers by adjusting an installation clamp (a dial indicator is adopted for measurement); then, after binary image processing such as singular point and noisy point removal, connected domain analysis and image corrosion is carried out through Matlab software, the number of abrasive particles of the datum plane at the interval of the specific height is obtained; and finally, rule analysis and research are carried out on the abrasive particle exposure height information. According to the method, the laser detection technology, the data processing technology and the image processing technology are combined, and accurate evaluation of the abrasive particle contour of the large-abrasive-particle super-hard abrasive grinding wheel is achieved.

Description

technical field [0001] The invention relates to a large abrasive superhard abrasive grinding wheel shaping technology and an image acquisition, processing and analysis method, belonging to the technical field of grinding wheel dressing technology and image recognition processing, in particular to a method for evaluating the high performance of large abrasive superhard abrasive grinding wheels . Background technique [0002] The large abrasive grain superabrasive grinding wheel has the advantages of reducing the complexity and randomness of the grinding process and improving the dynamic sharpness of the grinding wheel. fields are widely used. However, since it is difficult to ensure that the exposure height of the abrasive grains is consistent after the production of the large abrasive grain superabrasive grinding wheel, this will cause a large difference in the actual cutting depth of each abrasive grain, thereby affecting the surface quality of the ground workpiece. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/13G06T5/30G06F30/20
CPCG06T7/13G06T5/30G06F30/20G06T2207/10012G06T2207/30242G06T5/70
Inventor 张全利张振王文韬徐九华傅玉灿苏宏华丁文锋陈燕杨长勇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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