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Abrasive jet flow adaptive dressing method for consolidating abrasive polishing pad

A technology of abrasive jet and fixed abrasive, which is applied to the parts of grinding machine tools, grinding/polishing equipment, abrasive surface adjustment devices, etc., can solve the problems of poor technical stability and low efficiency, and achieve high production efficiency and improved use. Long life, good effect of trimming

Active Publication Date: 2018-09-07
HENAN INST OF SCI & TECH
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor stability and low efficiency of the existing dressing technology, and to invent an abrasive jet self-adaptive dressing method for a fixed abrasive polishing pad

Method used

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  • Abrasive jet flow adaptive dressing method for consolidating abrasive polishing pad
  • Abrasive jet flow adaptive dressing method for consolidating abrasive polishing pad
  • Abrasive jet flow adaptive dressing method for consolidating abrasive polishing pad

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as Figure 1-3 shown.

[0029] A method for adaptive dressing of abrasive jets for fixed abrasive polishing pads, the process of which is as follows image 3 As shown, the specific steps are as follows:

[0030] First of all, abrasive jet technology and adaptive parameter setting technology are used as polishing pad dressing methods, such as figure 1 shown;

[0031] Secondly, the characteristics of the surface state of the polishing pad at different stages (including the initial stage, the middle stage, and the end stage) are obtained through image feature recognition; image features include color features, image texture features, shape features, and feature point sizes, etc. The characteristics of the surface state of the throwing pad at different processing stages, such as sharp state, passivation state, etc.;

[0032] Third, obtain t...

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Abstract

The invention discloses an abrasive jet flow adaptive dressing method for consolidating an abrasive polishing pad. The abrasive jet flow adaptive dressing method for consolidating the abrasive polishing pad is characterized that the abrasive jet flow adaptive dressing method for consolidating the abrasive polishing pad comprises the following steps that firstly, the characteristics of different surface states of the polishing pad, such as a sharp state and a passivation state, are obtained by image recognition; the characteristics of different surface states of the polishing pad are obtained by friction signals; secondly, an artificial neural network is established to obtain the mapping relationship between image and friction characteristics and machining efficiency and quality; and thirdly, on-line measurement of the image, friction signal and feature extraction are carried out in the actual processing, then, according to the processing requirement, self-adaptive judgment is carried out on whether the polishing pad needs to be dressed or not and what kind of dressing parameters are used. The abrasive jet flow adaptive dressing method for consolidating the abrasive polishing pad has high dressing efficiency, can be carried out in time, and can obviously improve the polishing quality.

Description

technical field [0001] The invention relates to a mechanical processing method, especially a finishing polishing technology, in particular to an abrasive jet self-adaptive dressing method for a consolidated abrasive polishing pad. Background technique [0002] The existing dressing technology has certain defects: (1) The dressing effect of the self-dressing technology is poor, and other tools are still needed for dressing in the later stage; (2) The wear of the polishing pad during the dressing of the diamond dresser is large, resulting in a decrease in its service life. Residual debris is difficult to clean, which can block the pores of the polishing pad; (3) The cleaning effect of water jet trimming is good, but part of the "glazed" layer is difficult to remove, and the trimming effect is limited. In addition, the trimming methods adopted by the existing trimming technology are offline trimming or online continuous trimming. Off-line trimming needs to add special processe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B53/017B24B49/16
CPCB24B49/16B24B53/017
Inventor 王占奎苏建修左敦稳梁明超姚建国马利杰李勇峰刘亚明付素芳
Owner HENAN INST OF SCI & TECH
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