Method and device for realizing connection of pipe and plate by utilizing plastic deformation of pipe

Abstract

The invention discloses a method and a device for realizing connection of a pipe and a plate by utilizing plastic deformation of the pipe, and belongs to the technical field of material connection. The pre-flanging of the plate is combined with the shrinkage cavity of the pipe, and the plastic deformation of the flanging part of the plate is utilized to realize the plastic connection of the plateand the end part of the pipe. The method is easy to operate, capable of adopting existing equipment to construct corresponding devices, low in requirement for a power source, simple in step, suitablefor mass production, moreover, the forming precision is guaranteed through a mold, repeatability is high, production efficiency is high, and environment pollution is free. A plastic deformation modeis adopted, so that no harmful substance is generated in the whole connection process, and environmental friendliness is achieved. The device for implementing the method is simple in structure, reasonable in design, convenient to install and good in 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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