Novel steel tube weld strength detection device

Abstract

The invention discloses a novel steel tube weld strength detection device. The novel steel tube weld strength detection device comprises a frame, a rotary frame and a rotary frame support, wherein the rotary frame is rotationally arranged on the rotary frame support; the rotary frame support is arranged on the frame; the rotary frame support can translate linearly relative to the frame; the rotary frame comprises two annular end plates which are arranged concentrically; at least two guide rods are arranged between the two annular end plates; the guide rods are provided with detection assemblies capable of translating along axial directions of the guide rods; the detection assemblies comprise annular detection assembly bases, and ultrasonic flaw detectors and defect marking devices arranged on the detection assembly bases. By adopting the novel steel tube weld strength detection device disclosed by the invention, weld seams are detected through the ultrasonic flaw detectors arranged on the rotary frame, defective positions are marked through the defect marking devices, and the ultrasonic flaw detectors can translate relative to the rotary frame and revolve along with the rotary frame, so that the aim of flexibly detecting various weld seams is fulfilled, and high detection efficiency and high practicability are achieved.

Description

technical field [0001] The invention relates to the field of detection equipment, in particular to a steel pipe weld seam strength detection device. Background technique [0002] Steel pipe is a common material in production and life. It is an indispensable raw material for large steel structure frames and small automobile frames. There are two kinds of steel pipes commonly used at present. The first is seamless steel pipe, and the second The first type is welded seam steel pipe. For the second type of steel pipe, the weld seam forms are various. The simplest is straight seam steel pipe. The weld seam of some steel pipes can be curved seam or spiral seam. For the weld seam of these steel pipes The automatic detection of strength is an industrial problem. [0003] At present, the method for detecting the weld seam strength of steel pipes is mainly to detect the weld seam quality of steel pipes. At present, the widely used flaw detection method in China is still manual flaw ...

AI Technical Summary

Problems solved by technology

At present, the widely used flaw detection method in China is still manual flaw detection, and its operation process is quite complicated. According to the shape of the weld, ultrasonic probes with different angles are needed, and the position is constantly moved to ensure the incident position of the ultrasonic beam. Finally, according to the echo waveform Judging the nature of weld defects is labor-intensive and low-efficiency. In many cases, it needs to rely on the experience of the operator, which can easily lead to missed and misjudgment

In recent years, some multi-channel ultrasonic flaw detection instruments have appeared. Using multi-channel ultrasonic flaw detection instruments can realize multi-beam flaw detection at the same time. However, it is not convenient to move the position and it is not easy to realize automation, so it still cannot meet the requirements of large-scale weld flaw detection.

[0004] Most of the existing pipeline flaw detection devices are used to detect flaws inside the pipeline, while the devices that perform ultra-thin flaw detection on the outer surface of the pipeline have complex structures, cannot perform good positioning, have low detection accuracy, and are not easy to achieve full automation. Some devices are only aimed at a certain type of pipe diameter and cannot be widely used in various pipe diameters. Especially for large steel pipes that are inconvenient to move and rotate, flexible detection methods are required

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