Fluorescent magnetic powder flaw detection flow line for drill rod joint

Abstract

The invention relates to a fluorescent magnetic powder flaw detection flow line for a drill rod joint, which comprises a mechanical bed system, a feeding and conveying system, a magnetic suspension spraying and recycling system, a rotary observation system, a drill rod joint moving mechanical arm system, a drill rod joint discharging system and a dark room (26), wherein the mechanical bed system comprises a material rack (9) and a discharging platform bracket (29); the feeding and conveying system comprises a conveyor belt (2) and a joint tray (3); the magnetic suspension spraying and recycling system comprises a longitudinal magnetizing electrode (4), a circumferential-magnetizing conducting electrode (5), a threading air cylinder (10), an outer sprayer (7) and an inner sprayer (11); therotary observation system comprises a rotary conveyor idler (13), a detection platform rotary air cylinder (31) and a threaded rod (32); the drill rod joint moving mechanical arm system comprises a mechanical arm (18), a horizontal lead screw (20), a horizontal sliding table (21), a longitudinal lead screw (19), a longitudinal sliding table (22), a base (35) and a mechanical arm air cylinder (36); and the drill rod joint discharging system comprises a discharging frame (15), a discharging frame air cylinder (24) and a discharging frame air cylinder pull rod (34). The invention provides the fluorescent magnetic powder flaw detection flow line for the drill rod joint.

Description

(1) Technical field [0001] The invention relates to a magnetic particle flaw detection assembly line, in particular to a special fluorescence magnetic particle flaw detection assembly line for drill pipe joints. It is used for flaw detection to detect various cracks and minor defects on the surface and near surface of collars, drill pipe joints and other annular parts. (2) Background technology [0002] With my country's entry into the WTO and the implementation of the ISO9000 system, my country's quality system is in line with international standards, and the requirements for product quality control are becoming more and more standardized, and the requirements for the operating status of testing equipment for testing product quality are more stringent. Magnetic particle testing is a non-destructive testing method for checking the surface and near-surface defects of parts made of ferromagnetic materials. Because of its intuitive defect display, high sensitivity, fast detect...

AI Technical Summary

Problems solved by technology

However, in the production and testing process of oil drill pipe joints, the magnetization technology of traditional magnetic particle testing equipment has fallen behind, and its automation degree is not strong. The steps need to be manually operated, and there is no horizontal rotation function during the observation process, and the degree of integration is not good

Its structure, control principle, equipment monitoring, monitoring performance, peripheral safety and use conditions all fail to meet the specified requirements. During the detection process, false detection and missed monitoring occur from time to time, resulting in low production efficiency and safe use. performance and reliability are also difficult to guarantee

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