A grinding wheel load phenomenon in-situ monitoring system and method

Abstract

The invention relates to an in-situ monitoring system and method for a grinding wheel loading phenomenon. The in-situ monitoring system comprises an acoustic emission signal collecting device, an acoustic emission signal processing system, a visual inspection device, an image processing system and a diagnosing system; the acoustic emission signal collecting device adopts a fluid type acoustic emission sensor; the acoustic emission signal processing system comprises a characteristic parameter extracting module and a judging module; the visual inspection device adopts a CCD high-definition camera; the image processing system comprises a gray value extracting module, an area calculation module and a loading rate calculating module; the diagnosing system comprises a judging module and an alarming module, and whether giving an alarm and trimming a grinding wheel are needed or not is judged according to the loading rate. The in-situ monitoring system for the grinding wheel loading phenomenoncomprises the steps that firstly, the fluid type acoustic emission sensor is used for collecting acoustic emission signals, secondly, whether the loading phenomenon occurs or not is judged accordingto the comparison of acoustic emission characteristic parameters and a threshold value, if yes, the CCD high-definition camera is started to shoot the surface morphology of the grinding wheel, then asurface morphology image is processed, the area and loading rate of a loading area are obtained, and finally, whether giving an alarm and trimming the grinding wheel are needed or not is judged according to the loading rate

Description

technical field [0001] The invention relates to the technical field of precision grinding, in particular to an in-position monitoring system and method for a grinding wheel load phenomenon. Background technique [0002] With the development of high-speed and high-precision grinding technology, grinding has gradually been applied to various precision and high-precision processing occasions, and involves various fields of mechanical processing. Grinding wheel is the most important tool in grinding process and grinding machine, and the surface condition of grinding wheel plays an important role in grinding performance. In the process of processing, it is very easy to cause the load phenomenon of the grinding wheel due to the soft texture of the workpiece, that is, the accumulation of separated debris in the porous space between the abrasive grains of the grinding wheel. This phenomenon will produce dull grinding wheel grains, resulting in grinding wheel The cutting ability is ...

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Problems solved by technology

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the processing of the grinding wheel load phenomenon in the prior art is mainly offline, the speed is slow, and the monitoring process is relatively cumbersome, the degree of intelligence is not high, and the grinding wheel load phenomenon cannot be quantified

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