A kind of independent jet internal cooling grinding wheel

Abstract

The invention discloses an independent jet flow internal cooling grinding wheel. The grinding wheel comprises a grinding wheel body, and a grinding part; the grinding wheel body is opened downwards toform an inner cavity; a connecting part is arranged at the upper end of the grinding wheel body, the connecting part is connected with a cutter handle of a grinding machine, the grinding part is arranged on the bottom of the grinding wheel body, the grinding wheel further comprises a spraying device, the spraying device is arranged on the top of the inner cavity of the grinding wheel body and comprises a spraying cavity, a cavity pressure applying module, a liquid inlet, and a liquid spraying opening, the spraying cavity is of a cavity structure, and is arranged on the top of the inner cavityof the grinding wheel body, the cavity pressure applying module is arranged in the spraying cavity and is located on the top of the spraying cavity, the liquid inlet is formed in the spraying cavity,and communicates with a cooling liquid supply part, the liquid spraying opening is formed in the spraying cavity, the liquid spraying opening communicates with the inner cavity of the grinding wheelbody and the spraying cavity, the liquid spraying opening points to the grinding machining face, and cooling liquid is sprayed to the grinding machining face through the spraying opening. The problemsthat a traditional internal cooling type grinding wheel internal runner is difficult to machine, the machining cost is high, and the maximum spraying speed is limited are solved.

Description

technical field [0001] The invention relates to an internal cooling grinding wheel, in particular to an autonomous jet internal cooling grinding wheel, which belongs to the field of grinding processing. Background technique [0002] In machining, grinding is one of the most widely used material removal methods and belongs to finishing. [0003] During the grinding process, due to severe plastic deformation and friction, a large amount of grinding heat is generated in the grinding area between the grinding wheel and the workpiece. If the heat cannot be dissipated in time, burns and cracks will occur on the surface of the workpiece, which will seriously affect the workpiece. Processing quality. Traditionally, cooling is done by pouring coolant on the outside of the grinding wheel with nozzles. However, during the operation of the grinding wheel, a certain thickness of airflow layer is formed around it, which will prevent the external coolant from entering the grinding area, s...

AI Technical Summary

Problems solved by technology

[0004] The traditional internal cooling grinding wheel needs to process complex internal passages of grinding fluid, which is not only difficult to process and high in cost, but also greatly hinders the flow of grinding fluid, which limits its spray speed and affects the cooling effect

When using the traditional internal cooling grinding wheel, in order to achieve the effect of high-speed ejection of the grinding fluid, in addition to using a high-pressure hydraulic pump to pressurize, it is usually necessary to use the high centrifugal force generated by the high-speed rotation of the grinding wheel to accelerate the movement of the grinding fluid. Centrifugal force requires that the radial dimension of the inner cavity of the grinding wheel is sufficiently large, and the actual radial dimension of the grinding wheel often limits the ejection speed of the grinding fluid

[0005] Therefore, it is urgent to solve the problems of difficult processing of the inner runner of the traditional internal cooling grinding wheel, high processing cost and limited maximum ejection speed.

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