Multi-angle two-dimensional ultrasonic vibration-assisted nanofluid minimized quantity lubricating and grinding device

Abstract

The invention discloses a multi-angle two-dimensional ultrasonic vibration-assisted nanofluid minimized quantity lubricating and grinding device. The device comprises a workpiece clamp for clamping a workpiece and a grinding wheel for grinding the workpiece, wherein the workpiece clamp is connected to a two-dimensional ultrasonic vibrating device so as to maintain the degree of sharpness of the cutting edge of the grinding wheel and reduce the surface grinding temperature of the workpiece; an injection mechanism for injecting a nanofluid to the workpiece is arranged on one side of the grinding wheel to form coupling of two-dimensional ultrasonic vibration and nanofluid minimized quantity lubrication and grinding. The device applies a variable-angle two-dimensional ultrasonic vibration technology to grinding, and different combined vibrating directions are generated by adjusting the angles of two ultrasonic vibrators, so that the relative movement tracks of abrasive particles and the workpiece are changed. The grinding force and the grinding temperature are detected in real time through a force measuring device and a temperature measuring device, and meanwhile, the device is matched with nanofluid minimized quantity lubrication, so that the machining quality of the workpiece is further improved, and the thermal injury of the workpiece is avoided.

Description

technical field [0001] The invention relates to the field of grinding processing, in particular to a multi-angle two-dimensional ultrasonic vibration-assisted nanofluid micro-lubrication grinding device. Background technique [0002] With the development of science and technology, the demand for hard and brittle materials, difficult-to-machine materials and new advanced materials is increasing, and higher requirements are put forward for the processing efficiency, processing quality and processing accuracy of key parts. Large grinding force and grinding heat are generated, causing a series of problems such as surface / subsurface damage of the workpiece and low life of the grinding wheel. Especially in the field of precision and ultra-precision machining, the existence of these machining defects seriously restricts the improvement of machining accuracy and machining efficiency of parts. Therefore, it is very necessary to reduce the grinding force and grinding heat and improve...

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, the relative trajectory of the abrasive grains of the grinding wheel and the workpiece is consistent. Long-term operation may easily cause excessive damage to the cutting edge, and the grinding wheel needs to be re-grinded, which delays the processing cycle of the workpiece; Cooling can easily cause thermal damage to the workpiece. In addition, the existing technology cannot realize real-time online detection of grinding force and grinding temperature

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