A kind of internal cooling grinding wheel

Abstract

The invention discloses a grinding wheel with internal cooling. The grinding wheel body is a bowl-shaped structure. There is a knife handle on the grinding wheel body. Abrasive grains are uniformly distributed under the cavity wall of the grinding wheel body. The coolant cavity is sealed by a circular plate, and there is a coolant injection hole on the circular plate; the tool handle is provided with a central through hole, and the central through hole leads into the central cavity of the grinding wheel body; uniformly distributed in the cavity wall of the grinding wheel body There is a cooling liquid channel; the entrance of the cooling liquid channel is located in the cooling liquid chamber of the grinding wheel body, and the injection port of the cooling liquid channel is located between two adjacent abrasive grains. The advantages of the present invention are as follows: the cooling liquid is passed through the injection hole through the supercharging device, and the cooling liquid is ejected from the middle of two adjacent abrasive grains by using the pressure, gravity and the centrifugal force of the grinding wheel rotation, which can significantly reduce the temperature of the grinding area. It is a practical and effective grinding tool to avoid grinding burns and achieve more sufficient cooling.

Description

technical field [0001] The invention belongs to the technical field of grinding tools, in particular to an internal cooling grinding wheel. Background technique [0002] During the grinding process, the grinding heat generated by grinding is too much. At the same time, because the grinding area is a closed area, it is difficult for the cutting fluid to enter the cutting area for effective cooling, resulting in high local temperature in the grinding area, which makes the grinding process Grinding burns and grinding cracks are prone to occur on the surface of medium workpieces, making it difficult to guarantee the processing quality of parts. How to reduce the grinding temperature and prevent or reduce the thermal damage on the workpiece surface has always been one of the difficult problems to be solved in the grinding process. [0003] Some scholars have conducted a lot of research on the injection technology of coolant during grinding, such as needle-shaped high-pressure je...

AI Technical Summary

Problems solved by technology

For example, the penetration efficiency of conventional pouring cooling is low. Due to the limited gas cooling effect of low-temperature air cooling, other cooling methods may cause eccentric vibration of the grinding wheel, or require special and complicated nozzles or difficult to supply coolant.

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