Spaceflight inertia piece double-hole feature fine grinding temperature measurement device

Abstract

The invention relates to a spaceflight inertia piece double-hole feature fine grinding temperature measurement device. The spaceflight inertia piece double-hole feature fine grinding temperature measurement device is composed of a temperature sensor and an auxiliary device. The auxiliary device comprises a clamping component, an XYZ displacement component, an optical grating and a fixing piece component of the optical grating. The temperature sensor is arranged on the XYZ displacement component through a clamping component, the temperature sensor is located on one side of the XYZ displacementcomponent, and the optical grating and the fixing piece component of the optical grating are arranged on the other side of the XYZ displacement component. A cylinder-shaped thermocouple carrier is adopted in the temperature sensor, and a twin pole thermocouple is inserted in the thermocouple carrier; in the machining process, at the connection position of the thermocouple and the workpiece surface, the workpiece surface temperature can be effectively measured, and the temperature in the machining process is monitored in real time. Damage to the workpiece weak position is avoided. The interference on the temperature measurement from the workpiece shape feature can be reduced to the minimum. For the current high-precision and high-efficiency machining requirements, the important significanceis achieved for guaranteeing the spaceflight inertia piece machining quality through the studied temperature measurement technology.

Description

technical field [0001] The invention relates to a grinding temperature measuring device, in particular to a device for accurately measuring the grinding temperature generated during the double-hole micro-grinding process of aerospace inertial parts. Background technique [0002] The key features of the formation of double holes in the grinding process of aerospace inertial parts are the complex structure and small size of the processed parts, and the energy dissipation produces plastic deformation in the grinding area. In this area, the temperature of the grinding wheel or workpiece rises at a very high temperature rate. According to the nature of the material, excessive temperature will cause a series of hazards such as thermal damage on the surface of the workpiece, causing plastic deformation and affecting the accuracy of the part. Therefore, the grinding temperature is one of the most important factors to control the surface quality of the parts after the grinding proces...

AI Technical Summary

Problems solved by technology

At present, the measurement method of grinding temperature is mainly carried out from two aspects, one is direct measurement, and the other is indirect measurement, which is to deduce the temperature of the grinding process by analyzing the composition change of the surface of the ground part. This method is difficult to accurately infer the temperature change during the grinding process due to the interference of many factors such as processing materials and processing time.

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