Multi-angle two-dimensional ultrasonic vibration assisted nanofluid minimal lubrication grinding device

Abstract

The invention discloses a multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device, which includes a workpiece fixture for clamping a workpiece and a grinding wheel for grinding the workpiece. The workpiece fixture is connected with the two-dimensional ultrasonic vibration device to Maintain the sharpness of the cutting edge of the grinding wheel and cool the grinding temperature of the workpiece surface; one side of the grinding wheel is provided with an injection mechanism for spraying nano-fluid to the workpiece, forming a two-dimensional ultrasonic vibration coupled with nano-fluid micro-lubrication grinding; the device The variable-angle two-dimensional ultrasonic vibration technology is applied to the grinding process. By adjusting the angles of the two ultrasonic vibrators to generate different combined vibration directions, the relative trajectory of the abrasive particles and the workpiece can be changed. Through the force measuring device and The temperature measuring device detects the grinding force and grinding temperature in real time, and at the same time cooperates with nano-fluid micro-lubrication to further improve the processing quality of the workpiece and avoid thermal damage to the workpiece.

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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