Method and device for detecting and dressing quality of end face grinding wheel in real time

A technology of real-time detection and face grinding, which is applied in the direction of grinding drive device, grinding automatic control device, grinding machine tool parts, etc., which can solve the workpiece positioning error, affect the processing quality of the workpiece, and it is difficult to accurately determine the time when the grinding wheel needs to be dressed and other issues to achieve the effect of improving work efficiency, improving processing quality, and ensuring processing quality

Active Publication Date: 2019-12-20
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the indirect measurement method is generally used for the wear degree of the end face grinding wheel, that is, the wear degree of the grinding wheel is judged by measuring the surface quality of the processed workpiece. Since the surface quality of the workpiece needs to be measured offline, this dressing method will not only cause workpiece The positioning error also affects the overall processing quality of the workpiece. The most important thing is that this dressing method is difficult to accurately determine the time when the grinding wheel needs to be trimmed. The grinding wheel can only be trimmed regularly based on experience, so the grinding quality of the workpiece surface cannot be well controlled.

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  • Method and device for detecting and dressing quality of end face grinding wheel in real time
  • Method and device for detecting and dressing quality of end face grinding wheel in real time
  • Method and device for detecting and dressing quality of end face grinding wheel in real time

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Embodiment 1

[0044] This embodiment describes the method of the present invention in detail in conjunction with the above-mentioned device embodiment:

[0045] 1) The laser 6 emits continuous laser light and shoots obliquely to the ground surface of the workpiece 40, so that the laser light is emitted on the ground surface of the workpiece 40, and the receiver 4 receives the reflected laser light and characterizes it by the received energy value The degree of wear of the grinding wheel, so as to realize the real-time detection of the quality of the grinding wheel;

[0046] 2) When the reflected laser energy value received by the receiver 4 exceeds the preset upper limit, it means that the grinding wheel is severely worn, and the dressing action of the grinding wheel is immediately triggered, and the displacement sensor 17 records the position of the grinding wheel before triggering the dressing action as the secondary grinding point ;

[0047] 3) Quickly lift the worn grinding wheel and m...

Embodiment 2

[0052] In this embodiment, the method of the present invention is described in detail in combination with the above-mentioned device embodiment, and taking the chrome corundum grinding wheel as an example:

[0053] The grinding wheel in this embodiment is a chromium corundum grinding wheel, the grain size of the grinding wheel is F120, the abrasive grain rate of the grinding wheel is 54%, the bonding agent of the grinding wheel is resin, the hardness of the grinding wheel is G grade, and the distance between the center of the laser and the center of the receiver is 160 mm. The plate (workpiece 40) is a 316L austenitic stainless steel platen with a length of 1600 mm, a width of 1200 mm and a thickness of 10 mm. The distance between the two limit blocks 9 is 1500 mm. The length of the left and guide rail 2 is 2000 mm, and the length of the lifting guide rail 48 is 800mm.

[0054] In order to characterize the relationship between the quality of the grinding wheel and the laser en...

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Abstract

The invention discloses a method and device for detecting and dressing quality of an end face grinding wheel in real time. The device comprises a laser, a receiver, a grinding wheel dresser, the grinding wheel, a grinding wheel seat, a displacement sensor and a three-dimensional driving mechanism. According to the device, a laser beam emitted by the laser is obliquely emitted to the ground surfaceof a workpiece, the receiver continuously receives the reflected laser beam reflected by the ground surface, and the abrasion degree of the grinding wheel is detected in real time by detecting the energy of the reflected laser beam; when the energy of the laser beam reflected by the receiver reaches the corresponding grinding wheel wear limit value, the grinding wheel is triggered to stop grinding, the current grinding position of the grinding wheel is recorded through the displacement sensor, and the grinding wheel is moved to the position of the grinding wheel dresser by a grinding wheel driving mechanism and is dressed in real time; and the dressed grinding wheel returns to the current grinding position, and the grinding stroke of the surface of the workpiece continues. The on-line detection and dressing of the grinding wheel can be quickly and efficiently realized, and the processing quality and the grinding efficiency of end face grinding are improved.

Description

Technical field: [0001] The invention relates to a method and a device for real-time detection and trimming of the quality of an end face grinding wheel. Background technique: [0002] In the grinding process, the quality of the grinding surface directly depends on the quality of the grinding wheel, and the grinding wheel is very easy to wear during the grinding process, so the grinding wheel needs to be trimmed in time after working for a period of time to restore the grinding performance of the grinding wheel . [0003] At present, the indirect measurement method is generally used for the wear degree of the end face grinding wheel, that is, the wear degree of the grinding wheel is judged by measuring the surface quality of the processed workpiece. Since the surface quality of the workpiece needs to be measured offline, this dressing method will not only cause workpiece The positioning error also affects the overall processing quality of the workpiece. The most important t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B7/00B24B7/07B24B47/20B24B49/04B24B49/12B24B51/00B24B53/02
CPCB24B7/005B24B7/075B24B47/20B24B49/045B24B49/12B24B51/00B24B53/02
Inventor 张华郝德胜朱伟安然
Owner NANTONG UNIVERSITY
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