Profile precision electromagnetic welding test device and process based on machine vision

Abstract

The invention relates to a machine vision-based profile precision electromagnetic welding test device and process. The device comprises a support frame, a lifting mechanism, a welding workbench, a profile placement table, a temperature measurement camera, an infrared distance sensor and a welding core mechanism, the process comprises the steps of welding parameter setting, welding temperature monitoring and control and the like. According to the device, rotation of the welding blade and movement of the movable welding box are controlled through parameter setting so as to adjust the distance and angle between the welding blade and a profile groove, then the welding temperature is controlled, and the adaptability to various welding grooves is improved; according to the process, monitoring and adjusting of the welding temperature are achieved through machine vision, the welding defects caused by uneven welding temperature of the large profile, difficult groove welding and too large temperature difference between the upper portion and the lower portion of the groove are overcome, and the welding seam performance of the large profile is improved.

Description

technical field [0001] The invention relates to the technical field of high-frequency resistance welding, in particular to a machine vision-based precision electromagnetic welding test device and process for profiles. Background technique [0002] High-frequency welded pipes have many production processes and complex conditions, and the quality of welds is affected by a variety of factors. The product quality mainly depends on the welding quality. To ensure the welding quality, it is the first and foremost factor that affects the quality. The welding temperature is the key factor to ensure the welding quality. Generally, the welding power is used to control the welding temperature. The butt edge is not completely melted, and the inclusions are not easily discharged, thus forming welding defects; on the contrary, if the welding temperature is too high, too much metal will be melted at the butt edge of the strip, which will cause overheating or overburning, and even breakdown ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a precision electromagnetic welding test device and process based on machine vision, which uses multiple sets of temperature detection devices to measure the temperature change during casting, and controls the side heating device and column according to the corresponding temperature relationship. The surface heating device conducts data-based and controllable heating to the corresponding parts, realizes the temperature difference control of centrifugal casting, and effectively solves the problem of excessive temperature difference between different casting metals and formed working layers and the working layer itself during composite roll casting

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