Real-time imaging detection system for X-ray detection of weld joint of cylinder

Abstract

The invention provides a real-time imaging detection system for the X-ray detection of a weld joint of a cylinder. The system comprises a control console provided with a control computer, a high pressure generator, an X-ray tube head connected with the high pressure generator, an X-ray imaging receiver, a motion transmission mechanism, a gantry bracket, a guide rail pair positioned below the gantry bracket, a circulating water cooler for cooling the X-ray tube head, and a tool for mounting a to-be-detected weld joint cylinder, wherein X-ray imaging software is arranged on the control computer; the X-ray tube head and the X-ray imaging receiver are arranged on different motion output members of the motion transmission mechanism opposite to each other; the tool for mounting the to-be-detected weld joint cylinder is a tool which is driven by a motor to rotate around a vertical axis; at least four rollers matched with the guide rail pair are arranged below a tool bracket; and the signal control ends of the X-ray tube head, the X-ray imaging receiver and a motion transmission mechanism driving motor of the X-ray tube head, the X-ray imaging receiver and the signal control end of a tool rotation driving motor are respectively connected with the signal control end of the control computer.

Description

technical field [0001] The invention belongs to the technical field of weld seam detection, in particular to a real-time imaging detection system for X-ray detection of cylinder weld seam. Background technique [0002] The welding process is used in the production process of the cylinder, such as large pressure vessels used in the chemical industry, cylinders used in the field of aero-engines, etc. The quality of the weld is related to the service life of the molded cylinder and the safety performance during use. Therefore, in order to ensure product quality, weld quality inspection is one of the necessary inspection items in the quality inspection of the cylinder. [0003] At present, the most commonly used non-destructive testing method for welds is radiographic flaw detection method. The widely used ray flaw detection method is to use the penetrating radiation emitted by X-ray or γ-ray sources to penetrate the weld seam to make the film sensitive, so that the defects in t...

AI Technical Summary

Problems solved by technology

However, this method uses photosensitive film, and the quality of the weld seam can only be obtained after the photosensitive film is developed, and then it can be determined whether the weld seam of the workpiece needs to be repaired and which positions need to be repaired. This method has the disadvantage of low detection efficiency

Due to the high price of the film, the developer and fixer also need to be replaced regularly. This method also has the problem of high detection cost, especially for the detection of large quantities of cylinder welds.

In addition, the structure of the fixture used in weld inspection to hold the workpiece is simple, and the rotation and position change of the cylinder are all done by manual operation. Manual operation has the problems of inaccurate positioning and high labor intensity. At the same time, It will also affect the detection efficiency of the weld

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