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Electric resistance welding puppet electrode structure of hollow steel tube

A hollow steel pipe and electrode structure technology, applied in the direction of electrode features, pressure electrodes, etc., can solve problems such as poor welding effect

Inactive Publication Date: 2020-08-25
GUANGZHOU HUADE AUTOMOBILE SPRING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a puppet electrode structure for electric resistance welding of hollow steel pipes, which can solve the problem of poor welding effect

Method used

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  • Electric resistance welding puppet electrode structure of hollow steel tube
  • Electric resistance welding puppet electrode structure of hollow steel tube

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Embodiment Construction

[0021] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0022] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or there can also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0023] Un...

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Abstract

The invention discloses an electric resistance welding puppet electrode structure of a hollow steel tube. The structure comprises an upper electrode, a lower electrode and a puppet electrode. The puppet electrode comprises a leaning part and a mounting part. The leaning part is fixedly connected to the mounting part, the mounting part is fixedly connected to the lower part of the upper electrode,and the leaning part is provided with an arc-shaped matching groove matched with the hollow steel tube. The lower electrode is arranged in a spaced manner below the puppet electrode, a placing platform is arranged on the side, facing the puppet electrode, of the lower electrode, and a placing space for placing a metal sheet workpiece and the hollow steel tube is formed between the placing platformand the arc-shaped matching groove of the puppet electrode. By replacing point contact by surface contact, the problem of breakdown by current penetration during resistance spot welding of an ultrathin hollow tube is solved.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a puppet electrode structure for electric resistance welding of hollow steel pipes. Background technique [0002] At present, in order to save energy and reduce emissions in the global automobile market, it is the general trend to reduce the weight of automobiles. Hollow steel pipes are widely used in car seat systems, and the welding of hollow steel pipes is widely used in automobile manufacturing. [0003] But, there is following defect in the welding process of existing hollow steel pipe: [0004] When the wall thickness of the hollow steel pipe is 1mm, the hollow steel pipe and the sheet metal are overlapped for resistance spot welding. When the current passes through the hollow steel pipe, the steel pipe is prone to welding through. After the steel pipe is welded through, the structure and strength of the product will be affected. poor effect. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/30
CPCB23K11/3009
Inventor 袁传兵欧阳松
Owner GUANGZHOU HUADE AUTOMOBILE SPRING