Intelligent magnetic powder flaw detection device for detecting steel product defects

Abstract

The invention relates to an intelligent magnetic powder flaw detection device for detecting steel product defects. The intelligent magnetic powder flaw detection device comprises a base, a top plate,a controller, a supporting mechanism, a first motor, a turntable, a detection mechanism and two magnetization mechanisms; the supporting mechanism comprises a lifting component, a lifting plate, a direction adjusting component, a supporting plate and a fastening mechanism; the fastening mechanism comprises a plurality of fastening components; each of the fastening components comprises a moving plate, a telescopic unit and a fastening unit; the fastening unit comprises a pressure sensor, a spring and a fastening plate. The intelligent magnetic powder flaw detection device for detecting the steel product defects, provided by the invention, has the benefits that an angle of the to-be-detected surface of a workpiece is detected through the detection mechanism, and the to-be-detected surface ofthe workpiece is adjusted to be horizontal through the supporting mechanism, so that magnetic powder is ensured to be properly distributed near the defects, and further, the detection accuracy of thedevice is improved; besides, in the detection process, the position of the workpiece is fixed by utilizing the fastening mechanism, so that the sliding of the workpiece when the supporting plate inclines is prevented, the magnetic powder flaw detection is ensured to be smoothly proceeded, and the practicability of the device is improved.

Description

technical field [0001] The invention relates to the field of detection instruments, in particular to an intelligent magnetic particle flaw detection device for detecting defects of iron and steel products. Background technique [0002] Magnetic particle flaw detection uses the interaction between the leakage magnetic field at the defect of the workpiece and the magnetic powder, and through the difference between the magnetic permeability of the surface and near-surface defects (such as cracks, slag inclusions, hairlines, etc.) of steel products and the magnetic permeability of steel, these materials are magnetized The magnetic field at the discontinuity will be distorted, forming a leakage magnetic field on the surface of the workpiece at the part of the magnetic flux leakage, thereby attracting the magnetic powder to form the magnetic powder accumulation at the defect, that is, the magnetic mark, showing the position and shape of the defect under appropriate lighting conditi...

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Problems solved by technology

[0003] However, when the existing magnetic particle flaw detection device detects the workpiece surface of steel products, since the workpiece is placed flat on the detection platform, when the surface of the workpiece to be inspected is inclined, the magnetic powder is affected by gravity and is easy to slide down, affecting the magnetic marks. The distribution of defects leads to the wrong position of the defect display, which reduces the detection accuracy of the existing magnetic particle flaw detection device

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