Intelligent transient milling temperature-measuring tool based on film thermocouple

Abstract

The invention discloses an intelligent transient milling temperature-measuring tool based on a film thermocouple. Automatic acquisition, processing and storage and wireless transmission of temperature data can be achieved by adoption of an advanced film thermocouple transient temperature measuring method and a self-designed temperature acquisition module. The tool specifically comprises a temperature acquisition terminal mounted in a temperature acquisition terminal fixing assembly, a numerical control tool handle and a facing milling tool disk connected with the numerical control tool handle in a matched mode, and film thermocouple temperature measuring blades are fixed to the facing milling tool disk. The intelligent transient milling temperature-measuring tool based on the film thermocouple can be applicable to high-speed cutting, thin-walled pieces and precision and ultra-precision machining, and has the advantages that the response speed and measuring precision are high, and the transient temperature of a cutting zone on a production site can be accurately measured in real time.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing and cutting technology, in particular to the technical field of transient milling temperature testing, in particular to an intelligent transient milling temperature measuring tool based on a thin-film thermocouple. Background technique [0002] In modern mechanical processing, with the continuous improvement of cutting precision requirements and the further complexity of processing objects, high-speed, precision and ultra-precision machining have been rapidly developed. Cutting heat is an inevitable physical phenomenon in the machining process. The cutting temperature is directly related to the machining quality of the parts and the wear of the tool. For high-speed, precision and ultra-precision machining, the cutting heat is mainly concentrated at the tip of the tool and the temperature changes rapidly. , the temperature is too late to conduct, causing the temperature of the tool tip to rise...

AI Technical Summary

Problems solved by technology

[0003] Thin-film thermocouple is a new type of transient temperature sensor based on the thermoelectric conversion mechanism. The outstanding advantages of thin-film thermocouple are small heat capacity, small size, and fast response speed, and it can capture instantaneous temperature changes. The actual processing process is subject to wear, but when it is applied to high-speed, precision and ultra-precision processing, the thin-film thermocouple wears less, and its temperature measurement performance does not change much, and it can still meet the collection of transient temperature

However, due to the high-speed rotation of the milling spindle, the wiring of the traditional temperature measurement method is complicated, and the transmission of temperature measurement data is difficult, resulting in a bottleneck in the development of technology for measuring the temperature of the milling cutting area.

Therefore, it is necessary to study a new milling temperature measuring tool. By adopting the thin-film thermocouple method based on the thermoelectric effect, the thin-film thermocouple is directly embedded in the tool tip, which solves the technical short board of complex wiring in the traditional measurement method, and will The temperature acquisition unit is embedded in the milling cutter shaft, which can not only realize the local temperature data transmission and storage, but also transmit it to the host computer through wireless transmission to directly display the real-time temperature in the form of images and data, in order to realize real-time feedback of the milling machining center and then control the processing process Provides the possibility to provide a new technical approach for the measurement of the transient temperature of the milling area

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