Ultrasonic measurement device capable of automatically applying coupling agent and work method of ultrasonic measurement device

Abstract

The invention discloses an ultrasonic measurement device capable of automatically applying a coupling agent. The device comprises an ultrasonic probe, a mounting casing and a spraying assembly, wherein the ultrasonic probe is arranged in the mounting casing and is detachably connected with the mounting casing; the spraying assembly is fixedly arranged on the mounting casing and is movably connected with the ultrasonic probe; during measurement, after an external to-be-tested bolt is clamped on the mounting casing, the ultrasonic probe presses the head of the external to-be-tested bolt; meanwhile, the spraying assembly automatically smears the coupling agent on the binding surface of the ultrasonic probe and the external to-be-tested bolt. Compared with the prior art, a bolt measuring device provided by the invention automatically applies the coupling agent while the external to-be-tested bolt is clamped, so that the problem of influence on the coupling relationship between ultrasonic waves and the external to-be-tested bolt because of indefinite quantity, unevenness and the like of manual smearing of the coupling agent is avoided, convenience and high efficiency of bolt measurementprocess are ensured, and a measurement result is reliable.

Description

technical field [0001] The invention belongs to the field of sensor manufacturing, in particular to an ultrasonic probe with automatic coupling agent application and a working method thereof. Background technique [0002] Bolt, as a connection part with simple structure and convenient assembly and disassembly, has been widely used in industrial application fields. In actual use, the common failure forms of bolts mainly include: the failure of static load bolts is mostly the plastic deformation of the thread part or the bolt is broken; the failure of variable load bolts is mostly the fatigue fracture of the bolt; Bolt connection is used for hole making, and its failure mode is mainly shearing of the bolt rod, and the bolt rod or the contact surface of the connecting piece is crushed and damaged; if the thread precision is low or the connection is often assembled and disassembled, the phenomenon of slipping is likely to occur, and among them, The most common form of bolt fail...

AI Technical Summary

Problems solved by technology

In actual operation, the measurement personnel usually apply the coupling agent between the ultrasonic probe and the bolt contact surface, and then manually press the ultrasonic probe against the bolt contact surface, but the tightness of the coupling between the ultrasonic probe and the bolt also greatly affects The accuracy of ultrasonic detection of bolt stress, the operation of manually pressing the ultrasonic probe cannot guarantee the consistency of the ultrasonic probe measurement on the one hand, and on the other hand, it also introduces accidental errors into the test system

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