System and method for online flaw detection of industrial X-ray machine

Abstract

The invention relates to a system and method for online flaw detection of an industrial X-ray machine. The system provided by the invention comprises an intelligent camera, an optical lens system, an image intensifier, an X-ray tube, a high pressure generator, a pneumatic encoder, a motion controller, a network card, a monitoring room host and an acousto-optic alarm, wherein the intelligent camera controls a conveyor belt to operate through the motion controller; the displacement information of a workpiece is obtained through a stroke encoder; the X-ray tube is controlled by the high pressure controller to emit X rays; workpiece images are extracted from the workpiece through the image intensifier and the optical lens system; the defect of the workpiece is detected, and the coordinate and dimension information are extracted; a pneumatic marking machine is controlled to mark the defect position of the workpiece; a real-time video and the image containing the defect and the analysis result are transmitted to the monitoring room host; and the monitoring room host is connected with the acousto-optic alarm. The system provided by the invention has the advantages of low price, real-time display and high detection speed and suitability for the rapid dynamic detection of the detected workpiece which has the characteristics that the positioning precision requirements are not high, the thickness of the detected workpiece is uniform, and human eyes can easily identify the defects or problems on a screen.

Description

technical field [0001] The invention relates to X-ray imaging technology, in particular to an X-ray imaging device and defect detection method for industrial flaw detection. Background technique [0002] With the development of China's industry, the export of products continues to grow, and the status of the world's factory has been established. As a result, the quality requirements for industrial products are also increasing, and the inspection ratio and quantity of industrial products are increasing year by year. In recent years, radiographic imaging detection technology has been recognized, and manufacturers of various workpieces such as boiler welded pipes and automobile wheels have begun to use industrial X-rays for imaging detection. However, the production efficiency of such workpieces is generally high, requiring real-time, high-resolution piece-by-piece radiographic inspection on the assembly line. [0003] The principle of X-ray imaging detection is: X-rays will i...

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Problems solved by technology

Studies have shown that human vision can detect and identify targets in images with extremely low signal-to-noise ratios, and can complete the entir

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