A pipeline unevenness detection device for liquid swelling forming

Abstract

The invention belongs to the technical field of liquid swelling molding, and in particular relates to a pipeline unevenness detection device for liquid swelling molding, comprising a base, and a detection mechanism and a moving support mechanism are fixedly connected to the upper end of the base, and the moving support mechanism There is a steel pipe on the upper card holder; the detection mechanism includes a bracket fixedly connected to the upper end of the base, the upper end sidewall of the bracket is fixedly connected with a U-shaped fixing rod, and both ends of the U-shaped fixing rod are provided with detection and collection ends. The rear end of the U-shaped fixing rod is fixedly connected with a graphic conversion mechanism on both sides opposite to each other, and the detection and collection end and the graphic conversion mechanism are connected by a displacement transmission mechanism. The invention can visually display the concave and convex defects on the surface of the steel pipe in a linear style, so that more accurate basic data can be obtained in the precise liquid swelling forming process, the quality of the liquid swelling forming is ensured, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of liquid swelling forming, and in particular relates to a pipeline unevenness detection device for liquid swelling forming. Background technique [0002] In the liquid expansion molding process, a metal tube is used as a prefabricated part, the metal tube is put into the mold and the two ends of the metal tube are sealed, and then high-pressure liquid is filled into the tube, and the metal tube wall is compressed and expanded in the mold to form. [0003] Steel pipe is a commonly used material in liquid expansion forming. Due to the limitation of mold and production process of steel pipe in actual production, the surface of steel pipe will produce uneven concave and convex surfaces, resulting in uneven wall thickness of steel pipe, which is directly applied to some steel pipes. The precise and complex liquid swelling forming process will lead to errors in the original calculation parameters due to the uneve...

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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