Nanofluid minimum quantity lubrication experimental system and method for ultrasonic vibration auxiliary grinding

Abstract

The invention discloses a nanofluid minimum quantity lubrication experimental system and method for ultrasonic vibration auxiliary grinding. The system comprises a magnetism worktable, a workpiece clamp, a measuring cell and an ultrasonic vibration device; the ultrasonic vibration device comprises a tangential ultrasonic vibration device, an axial ultrasonic vibration device, a vibrating base and radial piezoelectric ceramic pieces fixed on the vibrating base; the tangential ultrasonic vibration device and the axial ultrasonic vibration device are respectively fixed on the vibrating base and meanwhile, are respectively fixed on the magnetism worktable by supports, the measuring cell is fixed on the vibrating base and the workpiece clamp is fixed on the measuring cell. The nanofluid minimum quantity lubrication experimental system and method for ultrasonic vibration auxiliary grinding have the advantages that simultaneous online detection of a grinding force and a grinding temperature are realized, time is saved, and the machining errors caused by assembling for multiple times are also avoided.

Description

technical field [0001] The invention relates to the field of grinding processing, in particular to a nanofluid micro-lubrication experimental system and method for ultrasonic vibration-assisted grinding. Background technique [0002] With the continuous development of high-end equipment in the fields of machinery, automobiles, optics, aerospace and other fields, a large number of components with higher and higher performance requirements have emerged, and precision and ultra-precision processing technology has become more and more important. The demand for hard and brittle materials, difficult-to-machine materials and new advanced materials for these parts is increasing, and higher requirements are put forward for the processing efficiency, processing quality and processing accuracy of key parts. The traditional grinding process will inevitably produce serious process deterioration layer and surface cracks. During the grinding process, large grinding force and high grinding ...

AI Technical Summary

Problems solved by technology

In this invention, the ultrasonic vibrator is supported by a bracket with a disc, and there is only one support point, which cannot guarantee the stability of the system. Moreover, one-dimensional ultrasonic vibration grinding has its limitations, and it needs to meet certain processing parameters to achieve the ideal processing effect

[0008] To sum up, in the prior art, it is impossible to provide an ultrasonic vibration device with an adjustable angle and three vibration directions (axial, tangential and radial), and the relative motion track of the abrasive grains of the grinding wheel and the workpiece is consistent. running, it is easy to cause excessive damage to the cutting edge, and the grinding wheel needs to be re-grinded, which delays the processing cycle of the workpiece; and the workpiece is not easy to be cooled during long-term operation, which is easy to cause thermal damage to the workpiece. In addition, the existing technology cannot achieve multiple ultrasonic vibration directions. Real-time online detection of grinding force and grinding temperature

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