Internal spray booster type grinding wheel rod

Abstract

The invention provides an internal spray booster type grinding wheel rod. By the adoption of the internal spray booster type grinding wheel rod, the problems that when a deep blind hole is ground during machining, a machined portion cannot be cooled directly by cooling liquid, and accordingly grinding cracks are prone to being generated are solved. The internal spray booster type grinding wheel rod comprises a grinding wheel rod body, a water inlet connector, an outer sleeve and sealing rings. The grinding wheel rod body is sleeved with the outer sleeve, and the two ends of the grinding wheel rod body are sealed. A flow internal is reserved between the grinding wheel rod body and the outer sleeve. A spiral booster groove is formed in the surface of the grinding wheel rod body. The outer side of the rear end of the outer sleeve is connected with the water inlet connector. A water spray hole is formed in the front end of the outer sleeve. In the grinding process of a grinding machine, cooling liquid is introduced from a machine tool cooling system and enters the flow internal between the grinding wheel rod body and the outer sleeve through the water inlet connector, the outer sleeve does not rotate, the grinding wheel rod body rotates at a high speed, and the cooling liquid is boosted through the spiral booster groove in the grinding wheel rod body and then sprayed to the ground portion directly through the water spray hole, so that a good cooling effect is achieved, the probability of generation of the grinding cracks is greatly decreased, and the grinding precision is further improved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a grinding wheel rod used in the processing of an inner hole grinder, which is mainly used in the inner hole grinding process of a relatively deep blind hole, and is especially suitable for an inner hole with a large hole diameter and a grinding wheel rod whose rotating speed is not too high Grinding. Background technique [0002] In the field of mechanical processing, when the inner hole grinder grinds the middle hole of the part, the coolant is introduced from the cooling system of the machine tool, and is directly sprayed on the grinding part through the cooling water pipe, so as to reduce the temperature of the grinding part and take away the grinding wheel. The role of residues. However, when grinding a blind hole with a deep hole, since the grinding wheel rod must maintain high rigidity, the gap between the grinding wheel rod and the hole is not large, the ...

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem that when grinding a blind hole with a large depth of grinding hole in mechanical processing, the external cooling liquid cannot be directly sprayed to the grinding part, which easily produces grinding cracks and affects the processing accuracy, and proposes an internal spray pressurized grinding wheel rod

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