Arc striking device of electric welding machine and arc striking method thereof

A technology of arc striking device and electric welding machine, which is applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problem that electric wires cannot strike arc smoothly, and achieve the effect of improving welding effect, reducing production cost and uniform distribution.

Active Publication Date: 2020-11-10
ZHEJIANG LAOSHIDUN WELDING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology and solve the problem that the arc cannot be started smoothly when the electro

Method used

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  • Arc striking device of electric welding machine and arc striking method thereof
  • Arc striking device of electric welding machine and arc striking method thereof
  • Arc striking device of electric welding machine and arc striking method thereof

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Embodiment approach

[0035] As an embodiment of the present invention, a protective plate 38 is installed on the end of the second movable plate 34 away from the first movable plate 33; the protective plate 38 is C-shaped and surrounds the vicinity of the tungsten pole 36; the protective plate 38 The interior is hollow; the surface of the protective plate 38 facing the tungsten electrode 36 is provided with evenly arranged micropores; the micropores communicate with the interior of the protective plate 38; the internal hollow space of the protective plate 38 is connected to the external inert gas source Connected through the pipeline; the protective plate 38 is equipped with a rotating shaft 381; the rotating shaft 381 is installed on the second moving plate 34; the protective plate 38 can rotate freely; the second moving plate 34 is installed away from one end of the moving plate one 33 There is a motor 382; the output shaft of the motor 382 is connected to the rotating shaft 381 through a synchro...

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Abstract

The invention belongs to the technical field of electric welding machines, and particularly relates to an arc striking device of an electric welding machine and an arc striking method thereof. The arcstriking method comprises the following steps that S1, workpieces to be welded are placed on a base I, and the workpieces are pressed through a fixing plate; the distance between the two workpieces is adjusted through an air cylinder III; and test blocks made of the same material are placed in a test clamping groove; S2, on the basis of S1, a power supply is switched on, an arc striking box is started, a tungsten electrode is controlled to be close to the test blocks, and the arc striking effect is tested; S3, after S2 is completed, the test blocks are taken down, and the distance between thetungsten electrode and the workpieces is adjusted; S4, on the basis of S3, the angle of the welding position of the tungsten electrode and the workpieces is adjusted; and S5, whether a welding wire is used or not is selected according to the material of the welding workpieces, and when the welding wire is used, the welding wire is sent to a welding position, a motor is controlled to operate, a protection plate is enabled to be close to the tungsten electrode, and protective gas is introduced and released. The arc striking device is good in arc striking effect, stable in work, reliable in performance and safe to use.

Description

technical field [0001] The invention belongs to the technical field of electric welding machines, and in particular relates to an arc striking device and an arc striking method for electric welding machines. Background technique [0002] During the welding process of the electric welding machine, due to the existence of an oxide layer with poor conductivity or other impurities on the surface of the welded metal, the arc welding cannot be successfully started during the welding process. The current common way to solve the above problems is to break down the oxide layer with the help of a high-voltage arc ignition device, so as to achieve the purpose of arc ignition. The existing arc starting device cannot start the arc smoothly when the distance between the electric welding machine and the welding construction site is relatively long, that is, when the electrode wire of the welding torch is relatively long. Because the long-distance wires have non-negligible resistance and e...

Claims

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Application Information

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IPC IPC(8): B23K9/067
CPCB23K9/067B23K9/0671
Inventor 张健
Owner ZHEJIANG LAOSHIDUN WELDING EQUIP
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