Pipeline unevenness detection device for liquid expansion forming

Abstract

The invention belongs to the technical field of liquid expansion forming, and particularly relates to a pipeline unevenness detection device for liquid expansion forming, the pipeline unevenness detection device comprises a base, the upper end of the base is fixedly connected with a detection mechanism and a movable supporting mechanism, and a steel pipe is clamped and supported on the movable supporting mechanism; the detection mechanism comprises a support fixedly connected to the upper end of the base, a U-shaped fixing rod is fixedly connected to the side wall of the upper end of the support, detection collection ends are arranged on the surfaces of the two ends of the U-shaped fixing rod, and graph conversion mechanisms are fixedly connected to the two opposite sides of the rear end of the U-shaped fixing rod. And the detection acquisition end is connected with the graph conversion mechanism through a displacement transmission mechanism. The concave-convex defect on the surface of the steel pipe can be visually displayed in a linear pattern, so that more accurate basic data can be obtained in an accurate liquid expansion forming process, the liquid expansion forming quality is ensured, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of liquid expansion forming, and in particular relates to a pipeline irregularity detection device for liquid expansion forming. Background technique [0002] The liquid expansion molding process uses metal tubes as prefabricated parts, puts the metal tubes into the mold and seals the two ends of the metal tubes, then fills the tubes with high-pressure liquid, and the metal tube walls expand under pressure and form in the molds. [0003] Steel pipe is a commonly used material in liquid expansion forming. In actual production, due to the limitation of the mold and production process, the surface of the steel pipe will have uneven concave and convex surfaces, resulting in uneven wall thickness of the steel pipe. It is directly applied to some The precise and complex liquid expansion forming process will lead to errors in the original calculation parameters due to uneven wall thickness, which will lead to the p...

AI Technical Summary

Problems solved by technology

[0005] 1. Since the surface of the steel pipe is a curved surface, it is cumbersome and inconvenient to use a laser rangefinder for detection and positioning, which is prone to errors and low detection accuracy;

[0006] 2. The detection and observation of the inner wall of the pipeline is not enough, and the variability of the unevenness of each point of the pipeline cannot be intuitively displayed, and the staff cannot quickly locate the position of the pipeline corresponding to the concave-convex defect, which affects the subsequent calculation and judgment efficiency

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