Stress calibration auxiliary device by portable ultrasonic coupling technique

Abstract

The invention relates to a stress calibration auxiliary device by a portable ultrasonic coupling technique. The stress calibration auxiliary device comprises an ultrasonic probe clamping mechanism, a connecting mechanism, transition mechanisms and clamping mechanisms, wherein the ultrasonic probe clamping mechanism is provided with an ultrasonic probe socket aperture; the connecting mechanism is used for connecting the ultrasonic probe clamping mechanism with a stabilizing mechanism; the transition mechanisms are arranged at two sides of the stabilizing mechanism correspondingly; the clamping mechanisms are connected with the transition mechanisms, wherein the ultrasonic probe clamping mechanism is a bulged structure which is internally provided with an assembling groove; the assembling groove is provided with a positioning component, a flow guide groove and a storage groove. According to the scheme, a coupling agent is conveyed and recycled automatically via the flow guide groove; the influences of pre-coating the coupling agent on stress calibration in the ultrasonic detection process are solved; the contact stability of the ultrasonic probe and a to-be-detected workpiece is ensured.

Description

technical field [0001] The invention relates to the field of ultrasonic non-destructive testing devices, in particular to a portable ultrasonic coupling technology calibration stress auxiliary device. Background technique [0002] Stress is one of the key factors affecting the quality and performance of construction machinery parts and welded structural parts. The common stress evaluation methods can be divided into two categories: destructive testing and nondestructive testing: [0003] (1) Destructive testing is to achieve stress evaluation on the basis of destroying the integrity of parts, and it is a sampling test, so the stress evaluation results are one-sided, which brings safety hazards to the quality of parts; [0004] (2) Non-destructive testing is to evaluate the stress on the basis of ensuring the overall performance of the parts, such as ultrasonic method, X-ray diffraction method, optical method, etc. Ultrasonic method has the advantages of convenient, safe, f...

AI Technical Summary

Problems solved by technology

[0006] At present, the ultrasonic calibration stress is basically carried out by the experimenter holding the probe, which not only reduces the efficiency of the calibration stress, but also cannot guarantee the thickness of the coupling agent, the contact pressure between the ultrasonic probe and the workpiece to be tested, and affects the calibration stress results. Stress evaluation causes adverse effects, and even brings hidden dangers to the quality and safety of parts

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