A method and device for connecting pipes and plates using plastic deformation of pipes

Abstract

The invention discloses a method and a device for realizing the connection between a pipe and a plate by utilizing the plastic deformation of the pipe, and belongs to the technical field of material connection. Combining the pre-flanging of the plate with the shrinkage cavity of the pipe, the plastic deformation of the flanging part of the plate is used to realize the plastic connection between the plate and the end of the pipe. The method is simple to operate, can use existing equipment to construct corresponding devices, has low requirements on power sources, simple steps, is suitable for mass production, molds ensure forming accuracy, high repeatability, high production efficiency, and does not pollute the environment. Plastic deformation is adopted, so that no harmful substances are produced during the entire connection process, which is environmentally friendly. The device for realizing the method has simple structure, reasonable design, convenient installation and good compatibility with conventional equipment.

Description

technical field [0001] The invention belongs to the technical field of material connection, and in particular relates to a method and a device for realizing the connection between a pipe and a plate by utilizing the plastic deformation of the pipe. Background technique [0002] In engineering fields such as automobiles and construction, it often involves the application scenarios of connecting plates to pipes or connecting pipes to plates. At present, the main methods for connecting pipes and plates include welding, gluing, mechanical fastening or riveting. However, the above connection methods need to be optimized: the production efficiency of the welding method is low, and the harmful gas generated during the welding process is likely to cause environmental pollution, and there is a problem that weld defects affect the strength of use; the method of gluing the pipe and the plate is due to The connection strength needs to be improved, which cannot meet the occasions that r...

AI Technical Summary

Problems solved by technology

However, the above connection methods need to be optimized: the production efficiency of the welding method is low, and the harmful gas generated during the welding process is likely to cause environmental pollution, and there is a problem that weld defects affect the strength of use; the method of gluing the pipe and the plate is due to The connection strength needs to be improved, which cannot meet the occasions that require high connection strength

Mechanical fastening is connected by bolts or rivets, and multiple holes need to be prefabricated in advance. When used in a vibration environment, it is easy to cause the bolts to fall off and the connection to fail.

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