Method for measuring temperature of grinding region of surface grinding

Abstract

The invention relates to a method for measuring the temperature of a grinding region of surface grinding. The method comprises the following steps: (1), making a thermocouple temperature sensor, (2), calibrating the thermocouple temperature sensor, and (3), measuring the temperature of the grinding region. During the grinding process, firstly a wire I and a wire II are connected into a collection card with a cold-end compensation function and a computer, then the grinding test is carried out after setting the rotation speed (Vs) of a grinding wheel and the rotation speed (Vw) of a working table, the top part of a ground work piece and the top part of a constantan sheet as thermocouple material are mutually lapped or welded together to form a thermocouple node, and finally the detected value of temperature of the grinding region is displayed and recorded by the computer through the shielded-type collection card with a cold-end compensation function and a shielded cable. The method can measure the temperature of the grinding region relatively and accurately when the work piece is ground by a surface grinding machine, and can protect the work piece from grinding burn and large residual stress by optimizing the process parameters of the surface grinding operation. The method has significance of improving quality of ground surface of the work piece and increasing the grinding efficiency.

Description

technical field [0001] The invention relates to a grinding temperature measurement method, in particular to a grinding area temperature measurement method used for surface grinding. Background technique [0002] In the precision grinding process, the temperature in the grinding zone has a great influence on the surface quality of the machined parts and the cutting performance of the abrasive grains of the grinding wheel. When the temperature in the grinding zone is high, the metallographic structure of the surface layer of the part will change, resulting in grinding burns. The higher instantaneous temperature in the grinding area will form thermal stress during the grinding and cooling process, which will cause greater residual stress on the surface of the ground part, and even cause cracks on the surface. In order to avoid the occurrence of the above phenomenon, the current surface grinding process mostly relies on the experience of the operator to select the processing pa...

AI Technical Summary

Problems solved by technology

In order to avoid the above phenomenon, the current surface grinding process mostly relies on the experience of the operator to select the processing parameters for grinding, and it is difficult to achieve the best effect

Images