Ultrasonic probe detection device

Abstract

The invention discloses an ultrasonic probe detection device which comprises an ultrasonic probe and a bracket. The ultrasonic probe detection device is characterized by further comprising a bottom plate, a probe mounting plate and a water jacket, wherein two sides of the bottom plate are movably connected with the bracket through shaft parts; a hole groove which runs through up and down is formed in the middle of the bottom plate; the probe mounting plate is mounted on the bottom plate; the upper part of the water jacket is fixed below the probe mounting plate; the lower part of the water jacket penetrates through the hole groove in the bottom plate and is in contact with a workpiece to be detected; the emitting end of the ultrasonic probe is positioned inside the cavity of the water jacket; in the structure, two shaft rods parallel to each other are fixedly mounted on two sides of the water jacket on the lower bottom side of the bottom plate, and a plurality of rolling bearings with the same diameter are arranged on each shaft rod. In the detection process, the probe of the detection device can swing freely on an arced surface of the workpiece along with the bottom plate, so that good coupling of the probe with the surface of the workpiece is achieved, and the detection effect is good.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing and relates to ultrasonic flaw detection technology, in particular to an ultrasonic probe device for detecting product defects. Background technique [0002] Defects of any shape in the gas cylinder can be mapped to transverse or radial defects. Generally, the water immersion method is used, and the longitudinal wave of the straight probe is incident. The water-steel interface produces waveform transitions, resulting in pure shear wave detection within the workpiece. [0003] To detect radial defects, it is necessary to make the probe and the central axis of the gas cylinder obliquely incident at a certain angle. After the waveform is converted, the transverse wave is propagated along the direction of the central axis to detect radial defects. The detection of transverse defects is through the probe perpendicular to the central axis of the gas cylinder, which forms an eccentricity w...

AI Technical Summary

Problems solved by technology

However, due to the material and heat treatment of the gas cylinder, the actual workpiece is deformed and the roundness does not meet the requirements. Some of the probes are in good contact with the workpiece, and some are separated. In this state, the workpiece is broken during the detection process. Poor coupling will occur, resulting in detection failure

At the same time, when gas cylinders of different specifications need to be replaced, more probe water jackets need to be replaced, and the incident angle of the probe needs to be adjusted, which is inefficient

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