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

A technology of plastic deformation and plate connection, which is applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of welding seam defects affecting the strength of use, low production efficiency of welding methods, and inability to meet the connection strength, etc., to achieve precise and labor-saving plasticity Instability, high production efficiency, high repeatability effect

Active Publication Date: 2020-04-24
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Embodiment Construction

[0041] A method of utilizing the plastic deformation of the pipe to realize the connection between the pipe and the plate according to the present invention comprises three processes of flanging the plate, shrinking the pipe and connecting the plate and the pipe:

[0042] Plate flanging: Prefabricate a round hole on the intended connection part of the plate, fix the plate, and perform flanging at the round hole to form a ring-shaped flange;

[0043] Pipe necking: fix the pipe, and shrink the end of the pipe to be connected. The diameter of the necking end is larger than the outer diameter of the plate flange, and the diameter of the necking end is generally 105% to 120% of the outer diameter of the plate flange.

[0044] Connection between the plate and the pipe: put the shrinking end of the pipe on the outside of the flange of the plate to fix the plate and the pipe; Magnetic induction heating, and then apply pressure to the flange of the plate, so that the flange of the plat...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/06B21D37/16B21D19/08B21D41/04
CPCB21D19/088B21D37/16B21D39/06B21D41/04
Inventor 王朋义万戈辉金加庚马泽相楠赵雪妮
Owner SHAANXI UNIV OF SCI & TECH
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