An ultrasonic flaw detection device

Abstract

The invention discloses an ultrasonic flaw detection device in the technical field of ultrasonic flaw detection, which comprises a device base, an indexing turntable is fixed on the left side of the top of the device base, a telescopic support column is vertically fixed on the top of the index turntable, and the telescopic support column The top of the telescopic end of the telescopic end is horizontally fixed with a mounting beam, and the bottom of the mounting beam is provided with a fixed slide rail. The left and right ends of the fixed slide rail are connected to the mounting beam through the slide rail connecting seat. The bottom of the moving sliding sleeve is fixedly connected with a fixed connecting rod, and the bottom of the fixed connecting rod is connected with the probe assembly through a universal hinge mechanism. The workpiece clamping platform is fixed on the right side of the top of the device base, and the workpiece clamping platform is located on the probe. Below the assembly, the probe assembly includes an upper fixing plate, a lower fixing plate, a connecting screw, a compression spring and double nuts. The present invention provides an ultrasonic flaw detection device with convenient operation and small detection error.

Description

technical field [0001] The invention relates to the technical field of ultrasonic flaw detection equipment, in particular to an ultrasonic flaw detection device. Background technique [0002] Ultrasonic flaw detection is a method of inspecting part defects by using ultrasonic energy to penetrate into the depths of metal materials, and when one section enters another section, the reflection occurs at the edge of the interface to detect defects in parts. Inside the metal, when it encounters a defect and the bottom surface of the part, a reflected wave occurs respectively, and a pulse waveform is formed on the fluorescent screen. The position and size of the defect are judged according to these pulse waveforms. [0003] There are various wave modes when ultrasonic waves propagate in the medium. The most commonly used in inspection are longitudinal waves, transverse waves, surface waves and plate waves. Longitudinal waves can be used to detect defects such as inclusions, cracks...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an ultrasonic flaw detection device to solve the above 1. The existing ultrasonic probes are generally fixedly installed on lifting or telescopic supports. The top surface or the side surface is in contact with the internal defects of the detection material, and it is inconvenient to operate at various angles; 2. The transducer in the existing ultrasonic probe is directly adjacent to the end of the probe, and it is impossible to ensure the performance of the detection operation. The transducer can be tightly coupled with the surface of the Bezel material, which is easy to increase the problem of detection accuracy error

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