Automatic detection method for friction welding head of conical component with large length-diameter ratio

Abstract

The invention provides an automatic detection method for a friction welding head of a conical component with a large length-diameter ratio. The automatic detection method comprises the following steps: a, placing the conical component; b, carrying out water immersion ultrasonic detection; and c, screening qualified parts. According to the invention, an automatic detection system is adopted for detection, and the automatic detection system comprises an equipment water tank, a guide rail assembly (10), a profiling positioning tool (20), a first push rod (30), a clamping, assembling and disassembling tool (40) and water immersion ultrasonic C scanning equipment. The profiling positioning tool (20) comprises a tool body (21), a second push rod (22), a sliding sleeve (23), a connecting rod (24), a first clamping jaw (25), a second clamping jaw (26) and a compression spring (260). According to the method, the flatness and the coaxiality of the conical component with the large length-diameter ratio on the ultrasonic C scanning water tank guide rail can be effectively ensured, so that the detection accuracy is ensured; and meanwhile, the method can realize rapid and automatic loading and unloading, saves labor productivity, is high in detection efficiency, and can realize large-scale detection.

Description

technical field [0001] The invention relates to the technical field of intelligent detection, in particular to an automatic detection method for friction welded joints of conical components with a large aspect ratio. Background technique [0002] Inertia friction welding is a high-quality connection method for shaft / shaft, disc / shaft, tube / tube, shaft / tube and other components of dissimilar metals, hard-to-weld metals and other materials. It is widely used in industrial production. each field. However, in the process of inertia friction welding, the joints are prone to weak connection defects with two-dimensional or planar features such as unwelded and scattered inclusions. Such defects usually manifest as close mechanical contact or fitting between local welding interfaces. , The atomic spacing between the interfaces is small, but the metallurgical bonding is not achieved. At the same time, it is difficult to detect and evaluate such defects. [0003] Water immersion ultr...

AI Technical Summary

Problems solved by technology

Since the water immersion ultrasonic testing process requires high parameters such as the water distance between the probe and the workpiece, it has high requirements for the coaxiality and parallelism of the large length-to-diameter ratio pipes and shafts to be tested during the rotation process; However, some pipes and shafts with large length-to-diameter ratio have complex shapes in the existing technology, such as conical structural parts. The influence of the gravity of the tapered end itself during the rotation process), resulting in low detection rate, missed detection, and low detection accuracy during the detection process. At the same time, the weight of components with a large aspect ratio is usually above 40kg and the length is above 700mm. Using manual loading and unloading operations greatly wastes labor productivity, low detection efficiency, and is prone to safety accidents

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