Integrated magnetic particle indication measuring tool and measuring method

Abstract

The invention relates to an integrated magnetic particle indication measuring tool and measuring method. The integrated magnetic particle indication measuring tool is characterized by comprising a standard ruler, an auxiliary ruler and a measuring ruler. The standard ruler comprises a straight ruler. One end of the straight ruler is internally provided with an angle measuring plate. The bottom part of the other end of the straight ruler is provided with a fist circular hole. The angle measuring plate is provided with an arc-shaped scale bar. The center of the arc-shaped scale bar is arranged on the axis of the straight ruler. The position of the arc core of the arc-shaped scale bar on the angle measuring plate is provided with a first through hole. The auxiliary ruler has a straight ruler structure. The bottom part of one end of the auxiliary ruler is provided with a second circular hole. The auxiliary ruler is rotatably connected with the standard ruler via a flexible rivet penetrating through the first circular hole and the second circular hole. The measuring ruler has a straight ruler structure. One end of the measuring ruler is provided with a second through hole. The measuring ruler is rotatably connected with the standard ruler via another flexible rivet penetrating through the first through hole and the second through hole The angle measuring plate is arranged on the standard ruler, and one measuring ruler is rotatably connected on the angle measuring plate so that measurement of defect magnetic particle indication direction and length can be performed simultaneously, and determination error and divergence can be reduced.

Description

Technical field [0001] The invention relates to a measuring tool, in particular to an integrated magnetic trace measuring tool and a measuring method. Background technique [0002] In order to ensure the transportation safety of railway freight cars, it is necessary to regularly inspect the key components of railway freight cars, such as couplers, bolsters, side frames, brake beams, crossbars, and axles for magnetic particle inspection. Magnetic particle inspection is mainly used to detect some defects that are not visible. When detecting defects, it is necessary to measure the length and direction of the defect magnetic marks, and the direction of the defect magnetic marks is more harmful to the safe use of the workpiece. Therefore, when performing magnetic particle inspection, you should first determine the defect magnetic marks. Direction, and then determine whether to repair or scrap the workpiece based on its size. [0003] The direction detection of defect magnetic marks is...

AI Technical Summary

Problems solved by technology

[0004] However, when flaw detectors quantitatively measure defects, since there is no direct and convenient measuring tool, they can only measure with the combination of ruler and angle ruler, or use visual inspection to determine the direction, but these two determination methods There will be certain errors, and it is impossible to make an accurate judgment

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