A cutting force measurement device based on manganese-copper alloy micro-nano sensitive unit

Abstract

Provided is a cutting force measurement device based on manganese-copper alloy micro-nano sensitive units. A cutting force measurement unit is arranged between a blade and a cutter pad. The shape and dimension of the cutting force measurement unit are matched with those of the blade and the cutter pad. The cutting force measurement unit is of a sandwich structure and comprises an upper aluminum oxide insulating layer, a lower aluminum oxide insulating layer and a middle component layer. Sensitive resistors based on a manganese-copper alloy material are integrated in the middle component layer. One ends of copper electrodes and one ends of lead circuits communicate with the sensitive resistors based on the manganese-copper alloy material, and the other ends of the copper electrodes and the other ends of the lead circuits communicate with metal welding plates on the side faces of the cutting force measurement unit, so that the sensitive resistors based on the manganese-copper alloy material are connected with a fixed resistor in a signal processing circuit to form a Wheatstone measurement bridge. The cutting force measurement unit adopts am MEMS technology for processing. The cutting force measurement device based on the manganese-copper alloy micro-nano sensitive units has the advantages of good compatibility, high universality and high measurement precision.

Description

technical field [0001] The invention relates to the technical field of cutting force measurement, in particular to a cutting force measuring device based on a manganese-copper alloy micro-nano sensitive unit. Background technique [0002] Cutting force is an important factor affecting machining accuracy, tool life, cutting efficiency, etc. of machine tools, and it is also a reliable indicator reflecting the cutting process. Cutting state monitoring and control through cutting force measurement is one of the key methods to realize the intelligent processing of high-end CNC machine tools. It can also provide data support for predicting cutting faults, studying cutting mechanisms, prolonging tool life, and optimizing cutting processes. Manufacturing has significance and real value. Cutting force sensor is the most commonly used instrument for measuring cutting force. Scholars at home and abroad have developed cutting force sensors based on various principles such as machinery,...

AI Technical Summary

Problems solved by technology

However, in the research of the new cutting force sensor, there are still the following problems to be solved urgently: (1) The original CNC tool structure needs to be further processed and modified, and grooves for packaging small piezoelectric sensors and other measuring units need to be reserved. Different modifications and packaging are required, and the versatility is not strong; (2) In order to avoid the influence of cutting heat on the measurement accuracy of the measurement unit, measurement units such as surface acoustic wave strain sensors are often arranged far away from the cutting position of the tool tip, which cannot be directly and effectively Taking cutting force measurements

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