Automatic ultrasonic flaw-detecting machine for tray type large shell section parts

Abstract

The invention relates to an automatic ultrasonic flaw-detecting machine for tray type large shell section parts. The machine comprises a tray and a track traveling trolley, and is characterized in that the tray is annular; the lower surface of the tray is fixedly connected with a three-jaw chuck; the tray is provided with an annular guide rail; the track traveling trolley is placed on and matched with the guide rail of the tray; the inner and outer sides of the track traveling trolley are respectively connected, by revolute pairs, with an inner big swivel arm and an outer big swivel arm driven by an oil cylinder; the inner big swivel arm and the outer big swivel arm are respectively connected, by revolute pairs, with an inner tubular detecting small arm and an outer tubular detecting small arm driven by an oil cylinder; the inner tubular detecting small arm and the outer detecting small arm are respectively provided with detecting small arms; the inner detecting small arm and the outer detecting small arm are connected with a telescopic link by sliding pairs; and the tail end of the telescopic link is provided with an ultrasonic probe. The advantages of the machine are as follows: a workpiece can be randomly set and positioned on a working table, and does not need rotation to save energy; the negative effect of the workpiece rotation fluctuation on detection is removed, and the stability is high; and the entire flaw-detecting machine is placed on the workpiece, a rack is omitted, and positioning is convenient.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic flaw detection equipment, in particular to a pallet-type large-scale ultrasonic automatic flaw detection machine for cylindrical joints. Background technique [0002] Ultrasonic flaw detection can check the internal defects of the workpiece without destroying it. It is a key technology for quality assurance in the manufacture of major national projects and various important civilian products. The main components of large-scale power generation equipment, nuclear power plant equipment, various pipelines, bridge components, large-scale workpieces in marine, aviation and other fields require ultrasonic flaw detection to ensure the safe operation of the entire life of the equipment. [0003] Ultrasonic automatic flaw detection has been applied in developed countries such as Germany, the United States, and Japan, but its key technical information has been blocked. In China, ultrasonic automatic fla...

AI Technical Summary

Problems solved by technology

Judgment and identification are mainly based on national standards and specifications, personal technology and experience, and the detection results and personal standards are difficult to be consistent

The labor intensity of manual flaw detection workers is high, the time required for flaw detection of each workpiece is long, and the production cycle is greatly extended. It has even become a bottleneck restricting the entire production process chain of some enterprises, seriously affecting production progress and production efficiency; There are fewer operators, workers often work overtime, resulting in fatigue operation, and the detection process is prone to misjudgment, which affects the reliability and accuracy of workpiece flaw detection to a certain extent

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