automatic cooling grinder

Abstract

The invention discloses a polishing machine with an automatic heat dissipation function. The polishing machine with the automatic heat dissipation function comprises a grinding disc and a rotary shaft connected with the grinding disc, wherein a cavity body used for accommodating cooling water, a water inlet channel axially arranged, and a plurality of slide grooves peripherally arranged around the cavity body, are formed in the rotary shaft; the water inlet channel, the cavity body and the slide grooves are mutually communicated in sequence; a slide block is slidably connected in each slide groove; a spring is arranged between each slide block and the inner wall of the corresponding slide groove; a plurality of groups of water outlet grooves are further formed in the rotary shaft; each group of the water outlet grooves is mutually communicated with the corresponding slide groove; and when the rotary shaft is stationary, each slide block seals the corresponding water outlet grooves. The polishing machine with the automatic heat dissipation function, which is disclosed by the invention, is used for automatically carrying out heat dissipation on the grinding disc when in use, thus the service life of the grinding disc is prolonged, and the polished object is protected from damages due to too high temperature of the grinding disc.

Description

technical field [0001] The invention relates to a polishing machine with automatic heat dissipation. Background technique [0002] A grinder is a manual electric tool for grinding the surface of an object. It uses various driving mechanisms to make the grinding disc rotate continuously and rapidly, thereby grinding the surface of the object. It is precisely because of the continuous and rapid rotation of the grinding disc that it will generate a lot of heat after rubbing against the surface of the object, making the grinding disc hot. On the one hand, the hot grinding disc will affect the life of the grinding disc after working for a long time. On the other hand, its friction temperature Too high will cause damage to the surface of the object being polished and cause unnecessary losses. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the invention provides a polishing machine with automatic heat dissipation, which automatically dissipates h...

AI Technical Summary

Problems solved by technology

It is precisely because of the continuous and rapid rotation of the grinding disc that it will generate a lot of heat after rubbing against the surface of the object, making the grinding disc hot. On the one hand, the hot grinding disc will affect the life of the grinding disc, on the other hand, its friction temperature Too high will cause damage to the surface of the object being polished, causing unnecessary losses

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