Device for prolonging the lifetime of resistance spot welding electrode

An electrode and resistance technology is applied in the field of resistance spot welding electrode life extension device to achieve the effect of reducing alloying and improving electrode life.

Inactive Publication Date: 2007-12-05
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the electrode starts from the electrode itself, which improves the life of the electrode material itself, and does not fundamentally solve the problem of electrode loss.

Method used

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  • Device for prolonging the lifetime of resistance spot welding electrode
  • Device for prolonging the lifetime of resistance spot welding electrode
  • Device for prolonging the lifetime of resistance spot welding electrode

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Experimental program
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Embodiment Construction

[0036] The following is divided into three parts. That is, the mechanical structure of the device, the movement process and the selection of copper sheets.

[0037] (1) Mechanical structure

[0038] The device is divided into two parts corresponding to the upper and lower electrodes, that is, the part connected with the upper electrode and the part connected with the lower electrode.

[0039] Upper electrode part:

[0040] Referring to Fig. 1, Fig. 2 and Fig. 4, the part connected with the upper electrode includes: the upper movable support 6 fixedly connected with the upper electrode 7, the upper support 5 fixedly connected with the welding machine, and the upper movable support 6 and the upper support 5 are Flexible connection, upper bracket 5 is symmetrically provided with two rectangular grooves at one end away from the workpiece, and a spring column 21, 22 is respectively fixed in the rectangular groove, and a spring is set on the spring column; the depth of the rectang...

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Abstract

The present invention relates to one kind of life increasing device for resistance spot welding electrode, and belongs to the field of resistance spot welding technology. The device includes one upper movable rack, one upper rack connected movably to the upper movable rack, one lower movable rack, one lower rack connected movably to the lower movable rack, one upper main shaft, one lower main shaft, springs separately between one main shaft and one rack, one arced upper flywheel, one arced lower flywheel, one upper ratchet wheel mechanism, one lower ratchet wheel mechanism, copper tabs on the flywheels, one upper link rod mechanism, one lower link rod mechanism, one upper hook mechanism and one lower hook mechanism. It has the advantages of reduced alloying, less wear, less pitting corrosion, less heat fatigue and long electrode life.

Description

technical field [0001] The invention relates to the technical field of resistance spot welding, in particular to a life extension device for resistance spot welding electrodes. Background technique [0002] As we all know, in modern aviation, automobile and home appliance industries, the application of galvanized steel sheets and aluminum alloy sheets with better anti-rust ability and long service life is increasing day by day. Due to the large number of thin plate structures (such as automobile bodies, etc., thickness 0.05-6mm), spot welding is generally used to obtain good welding quality during welding. During the spot welding process, the main function of the spot welding electrode is to transmit current, pressurize and dissipate heat. The welding current during spot welding is often as high as thousands to tens of thousands of amperes, the electrode pressure can reach hundreds of MPa, and the diameter of the electrode head is generally As the electrode usage time incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/36B23K11/30B23K11/31B23K11/11
Inventor 罗震马迎兵单平罗保发王蕤步贤政
Owner TIANJIN UNIV
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