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Electrode clamp mechanism of point welding and its application

A technology of clamping mechanism and spot welding electrode, which is applied in the direction of electrode characteristics, resistance electrode seat, etc., can solve the problems of high cost for manufacturers, increase the life of electrodes, increase the life of spot welding electrodes, and suppress the misalignment and deformation of spot welding Effect

Inactive Publication Date: 2007-11-14
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be said that the efforts in the above three aspects have all achieved success to varying degrees, but they all have the disadvantage of being too expensive for manufacturers.

Method used

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  • Electrode clamp mechanism of point welding and its application

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Embodiment Construction

[0016] As shown in Figure 1, the present invention includes:

[0017] 1. The upper and lower electrodes 3 and 4 are spherical electrodes, wherein the lower electrode 4 is fixed and the axis is vertical, and the axis of the upper electrode 3 and the axis of the lower electrode 4 form a certain angle 0°<θ<90° (5° in this example) ;

[0018] 2. The electrode handle 2 and the conductive connecting rod 1 can rotate with each other, and have a matching cone surface (0°

[0019] 3. The conductive connecting rod 1 is an integrated structure formed by connecting the horizontal rod 11 and the sleeve 12. The angle between the axes of the horizontal rod 11 and the sleeve 12 is 0°<θ<90° (85° in this embodiment). A linear bearing 6 is installed between the outer wall of the rod 2 and the inner wall of the conductive connecting rod sleeve 12, and is positioned by the bearing gland 7 to ensure accurate positioning, smooth mutual rotation, and ...

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Abstract

A clamping mechanism for the spot-welding electrode is composed of an electrode holding bar with a limiting cap, an upper electrode opposite to lower spot-welding electrode and installed to said electrode holding bar in such manner that the included angle between the axes of upper and lower electrodes is 0-90 deg, an electrically conductive rod in contact with said electrode holding bar and consisting of horizontal rod and sleeve pipe, a linear bearing between said electrode holding bar and sleeve pipe, and a rotary unit at another end of electrode holding bar.

Description

technical field [0001] The invention relates to a metal thin plate spot welding connection technology, in particular to a spot welding electrode clamping mechanism and a using method thereof. Background technique [0002] Metal sheet spot welding technology is an important connection technology in the automotive, aviation and other industrial fields. With the wide application of aluminum alloy sheets and galvanized steel sheets, the service life of spot welding copper electrodes has become more and more prominent. Because aluminum, zinc and copper are prone to interdiffusion and form low-melting point alloys on the surface of the electrodes, compared with spot-welded ordinary steel plates, the electrodes of spot-welded aluminum alloy or galvanized steel plates are more likely to stick and damage. Since most of the actual production uses spherical electrodes, the sticky loss of the central part of the electrode working surface makes the electrodes fail prematurely. It direc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K11/31
Inventor 郝传勇李正林毛先锋张洪延
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI