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Electric welder arc striking device

A technology of arc striking device and electric welding machine, which is applied in the direction of arc welding equipment, welding equipment, manufacturing tools, etc., to achieve the effects of ensuring personal safety, reducing air consumption, and reliable operation

Inactive Publication Date: 2010-12-29
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, similar to the ZXE-6~500 / 400 type of Hunan Electric Welding Machine Factory, AC and DC integrated welding machines are widely used in the society. DC is obtained through single-phase full-wave rectification. At present, there is no dual-purpose for AC and DC. A device for simultaneous protection against electric shock for welding machines

Method used

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  • Electric welder arc striking device
  • Electric welder arc striking device
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Examples

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Embodiment Construction

[0017] Combine below image 3 , Figure 4 , Figure 5 Illustrate the embodiment of the present invention:

[0018] The general circuit diagram of the control device is image 3 As shown, T1 is the main transformer of the electric welding machine, L1 and L2 are the line voltage marks, which are connected to the 380V power distribution box, and K1 is the welding machine on / off control switch. CJ10 / 40A AC contactor is the primary side power switch of the main transformer of the welding machine, the hole is the single-phase rectifier, LB-smoothing reactor, DK is the AC and DC output selection switch, 3# and 4# wiring points are the control device wiring terminals, Connect to welder output wire bus.

[0019] T3 is the auxiliary transformer, single-phase 380V / 36V, 50VA is the AC power supply of the control device, F is the fusing fuse of the control device, which is used for "short circuit" protection of the power components of the control device, C6, C7, C8, C9, C10, NF Compos...

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Abstract

The invention provides an electric welder arc striking device, which is a high-frequency sine wave controlled alternating-current or direct-current electric welder arc striking device with low requirement for contact resistance of a welded workpiece and high controlled arc striking sensitivity. The electric welder arc striking device consists of a voltage-stabilizing power supply circuit, a high-frequency sine wave generating circuit and an identification circuit. The controlled arc striking device consists of a voltage-stabilizing power supply, the high-frequency sine wave generating circuit and the identification circuit. The turn-on of a main power supply of an electric welder is controlled at the same time of controlling arc striking, and the main power supply is immediately and automatically turned off in 0.8 to 1 second after an operator stops welding, so the idle consumption of the electric welder is reduced, and the operator can get rid of body shock hazard caused by no load voltage in severe condition places such as double-layer bottom of a ship or high-altitude operation. The arc striking device is applicable to various alternating-current transformer welders, silicon controlled direct-current welders, silicon rectifying welders, alternating-current and direct-current two-purpose welders, carbon gouging machines, arc cutting machines and the like.

Description

technical field [0001] The invention belongs to the field of arc welding or arc cutting, and in particular relates to an arc striking device for an electric welding machine. Background technique [0002] Standard of the People's Republic of China GB15579-95.IEC974 / 1:1989. Safety requirements for arc welding equipment Part I: Welding power supply Chapter 1. Section 1 Section 1 has regulations on the use of rated voltage in environments with high risk of electric shock. The national standard GB10235-88 of the People's Republic of China stipulates that the arc welding transformer anti-shock device "subject content and scope of application" stipulates that in an environment with little risk of electric shock, the rated secondary air conditioner with an AC effective value of 80V, a peak value of 113V, and a DC peak value of 113V or more AC and DC arc welding machines with load voltage need to be equipped with anti-shock devices. In an environment with a high risk of electric sho...

Claims

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Application Information

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IPC IPC(8): B23K9/067
Inventor 于乾波
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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