Integrated camera assembly for magnetic powder inspection fluorescence imaging of small special-shaped part

Abstract

The invention discloses a magnetic powder inspection fluorescence imaging device for detecting a small special-shaped part. The magnetic powder inspection fluorescence imaging device comprises an integrated camera assembly, and the integrated camera assembly comprises a camera, a lens arranged in front of the camera, a fluorescence filter arranged in front of an electric lens and a light source assembly arranged on a shell of the integrated camera assembly. The light source assembly comprises a lens through hole formed in the center of the shell and a plurality of LED light sources arranged around the lens through hole, and the plurality of LED light sources includes a plurality of ultraviolet LEDs and a plurality of visible light LEDs. The magnetic powder inspection fluorescence imaging device for detecting the small steel special-shaped part further comprises an external high-power ultraviolet light source, and the ultraviolet light is transmitted to the integrated camera assembly through an optical fiber. The integrated device provided by the invention can realize the safe and efficient magnetic powder inspection fluorescence imaging device detection. By utilizing a small LED light source or the miniaturization of a large light source optical fiber, the inconsistency of the observation positions of the ultraviolet illumination light source and the camera during detection isavoided, a detection blind area is avoided, and the magnetic powder inspection detection effect is improved.

Description

technical field [0001] The invention relates to the field of magnetic particle fluorescence flaw detection, and more specifically refers to an integrated camera assembly of a magnetic particle flaw detection fluorescence imaging device used for detecting small shaped iron and steel parts. Background technique [0002] In the industrial production process, magnetic particle fluorescence flaw detection is an important quality inspection process. The traditional inspection method is to use a manual method to apply a magnetic field to the steel pipe and other parts to be tested in a dark room, and then spray the magnetic suspension. If the test piece has surface or shallow surface defects (cracks, pores, non-metallic inclusions, etc.) , which contains air or non-metallic materials, whose magnetic permeability is much smaller than the workpiece, resulting in a change in magnetic resistance, and a leakage magnetic field is generated on the surface of the steel pipe or at the corre...

AI Technical Summary

Problems solved by technology

[0007] Due to the difficulty in online magnetic particle flaw detection of small, deep-hole, and irregular-shaped steel workpieces, it is difficult to irradiate the ultraviolet light to the inner surface or abnormal position of the workpiece under test. At the same time, it is difficult for the camera to observe because of the conflict between the ultraviolet light source and the camera. Defect indications at internal locations

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