Welding line stretching and bending experimental instrument

Abstract

The invention discloses a welding line stretching and bending experimental instrument. The welding line stretching and bending experimental instrument comprises an upper clamp, a lower clamp, a swing arm and an adjustment assembly, the upper clamp and the lower clamp are used for clamping a welding line test piece, the adjustment assembly is used for adjusting a vertical position of the upper clamp, the lower clamp is movably connected to the swing arm, the swing arm is located above the lower clamp and can turn over relatively to the lower clamp, the upper clamp is arranged on the swing arm by the adjustment assembly, and the upper clamp can vertically move relatively to the swing arm by adjustment of the adjustment assembly. The experimental instrument can simulate cold rolling production line-produced loads on a welding line, improve welding line detection reliability and provide quantification basis for welding line quality evaluation.

Description

Technical field [0001] The invention relates to the technical field of welding seam quality detection, in particular to a welding seam tensile and bending tester. Background technique [0002] The function of the weld detector is to check whether the welds of the two coils of strip steel welded together meet the requirements of the subsequent supply and demand. If the quality of the welds is unqualified, it will affect the production of running belts, and seriously cause the welds to break in the subsequent process. Stop production. [0003] In the prior art, all cold rolling mills use cupping testers to detect weld seams. However, in the actual production process, the cupping test is often qualified, but the welding seam is broken in the subsequent process. In steel practice, the welds are mostly broken at the tension leveler and the three-roll tension roller with both stretching and bending. In the continuous mass production situation, the cupping tester's test results for the w...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, all cold rolling mills use cupping testers to detect welds. However, in the actual production process, the cupping test is often qualified, but the weld is broken in the subsequent process. In steel practice, most of the welds are broken at the tensile leveler and the three-roll tension roller. Under the situation of continuous mass production, the test results of the cupping tester for the weld can no longer meet the requirements of production practice.

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