Part temperature control device for grinding processing

Abstract

The invention relates to a part temperature control device for grinding processing. In a grinding quench hardening processing course, the change of the surface temperature of a part directly affects the quality of a heat-treated layer on the surface of the part. A high-temperature heat pipe is a good device for controlling heat transfer; in order to keep the temperature change of the part in the grinding quench hardening processing course low, the high-temperature heat pipe comes into contact with a part to be ground; the surface temperature of the part is detected in real time during grinding processing by means of an infrared radiation thermodetector; the contact area of the high-temperature heat pipe with a connection block and a thermal conductive adhesive is adjusted by driving a transmission structure unit using a PID (Proportion Integration Differentiation) controller, so that thermal contact resistance is reduced to transfer excessive heat outwards; therefore, the surface temperature of the part is adjusted, the requirement of controlling surface quenching is met, and technical support and foundation are provided for realizing automatic control of grinding process; and theapplication of the device may produce excellent economic and social benefits.

Description

Technical field [0001] The invention relates to a device for controlling the temperature of the surface grinding zone of a part in grinding processing, and is particularly suitable for controlling the heat transfer in the grinding zone of the surface of the part during grinding hardening processing, and belongs to the technical field of grinding processing . Background technique [0002] Grinding is a processing method that uses abrasives to remove materials. It is widely used in the production of high-precision, high-surface quality and high-efficiency workpieces. Because the grinding process requires a very high energy input to remove a unit volume of material, almost all of this energy is converted into heat, of which 60%-95% of the heat is transferred to the part and gathered in a very thin surface layer, resulting in the surface temperature of the part Rise sharply. When the grinding temperature is high, the metallographic structure of the surface layer of the parts will c...

AI Technical Summary

Problems solved by technology

In the Chinese patent—a brazed diamond heat pipe grinding wheel, patent number: ZL 200710190139.7, it is proposed that the heat pipe structure be built into the grinding wheel. The disadvantage is that the strength of the grinding wheel is greatly reduced due to the use of the built-in heat pipe. Materials such as additives have poor thermal conductivity, and the thermal resistance between the heat pipe and the grinding wheel is relatively large.

Images