An ultrasonic non-destructive testing device

Abstract

The invention discloses an ultrasonic non-destructive testing device, which includes a mobile platform, a column, a rotating arm, a pressure sensor, an ultrasonic transducer and a control system. The column is installed on the mobile platform, and a lifting device is installed in the column mechanism and a lifting counterweight module, one end of the rotating arm is connected to the lifting mechanism, and the lifting mechanism controls the rotating arm to lift and pressurize, and the other end of the rotating arm is provided with a self-control locking ball hinge , the pressure sensor is connected to the bottom of the self-control locking ball hinge, the ultrasonic transducer is connected to the pressure sensor through a spring guide post connection mechanism, and the control system controls the action of each executive part of the entire detection device. The above ultrasonic nondestructive testing device not only has a compact structure, can reduce manual intervention in the ultrasonic testing process, reduce labor intensity of testing personnel, but also improve the accuracy and reliability of ultrasonic testing results.

Description

technical field [0001] The invention belongs to ultrasonic testing technology, in particular to an ultrasonic non-destructive testing device applied to curved surface and inclined surface parts. Background technique [0002] Ultrasonic non-destructive testing is a testing method that uses ultrasonic energy to propagate in elastic media and produce reflection, refraction and other characteristics on the interface to detect internal or surface defects of materials without damaging the state of parts or raw materials. Ultrasonic testing technology generally sends ultrasonic waves to the inside of the measured object through an ultrasonic transducer. The ultrasonic wave has a short wavelength and high frequency, and has good directionality and penetration. When it propagates inside the measured object, it reaches the defects inside the material. , cracks, etc., due to changes in the internal structure of the material, the propagation characteristics of the ultrasonic wave will c...

AI Technical Summary

Problems solved by technology

Among these two ultrasonic testing automation devices, the former only realizes the detection of the inner and outer surfaces of rotary parts, and the size of the detection parts is also limited by the size of the gantry, and the pressure is not controlled, so the detection accuracy is difficult to guarantee

The latter detection part has poor adaptability and lacks flexible angle and degree of freedom control, which limits the application range of the pressurizing device. On the other hand, the pressurizing force is an open-loop control, limited by the manufacturing error and precision of the spring with the same stiffness, and only controls the displacement. The amount does not guarantee the accuracy of the pressure

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