Multi-power-supply parallel multi-wire high-efficiency electric arc welding device and application thereof

An arc welding and multi-power technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of complex equipment, high cost, difficult processing and replacement, etc., to reduce interference and improve welding efficiency.

Inactive Publication Date: 2020-02-14
南京引力工业焊接技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current multi-wire arc welding has the following methods: 1. Tandem twin-wire arc welding, using a torch nozzle with two mutually insulated conductive tips, and two welding power sources that are cooperatively controlled, the welding efficiency can reach that of single-wire welding 2. Twin wire arc welding, using a welding torch nozzle with a special conductive tip with two holes, one welding power supply supplies power to two welding wires at the same time, and the welding efficiency can also reach Single-wire welding is about twice as long, but the contact tip is a non-standard product, and it is difficult to process and replace; 3. Similar to Twin, there is also three-wire arc welding,

Method used

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  • Multi-power-supply parallel multi-wire high-efficiency electric arc welding device and application thereof
  • Multi-power-supply parallel multi-wire high-efficiency electric arc welding device and application thereof
  • Multi-power-supply parallel multi-wire high-efficiency electric arc welding device and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A multi-power parallel multi-wire high-efficiency arc welding device includes multiple independent welding power sources, multiple independent wire feeding mechanisms, multiple independent wire feeding mechanisms for multiple wire feeders, densely arranged multi-wire welding torches and contact tips.

[0032] The welding power sources of the plurality of independent welding power sources are of constant voltage or constant current characteristics, and the number is at least two.

[0033] The multiple independent wire feeding mechanisms are multiple solid monofilaments and / or multiple flux-cored monofilaments and / or multiple cable-type welding wires.

[0034] The independent wire feeding mechanism of multiple wire feeders can feed each welding wire independently without affecting each other, and each wire feeding mechanism can only feed one welding wire.

[0035] The arrangement of the densely arranged multi-wire welding torches is triangular arrangement, circular arrang...

Embodiment 2

[0045] figure 2 It is a schematic diagram of an embodiment of multi-wire narrow gap welding. figure 2 (a) 10 is the workpiece with narrow gap groove; figure 2 Middle 20 is a curved contact tip with a corner made by utilizing the easy-to-bend feature of the small-diameter special contact tip, so that the welding wire 40 can end the welding wire 40 in a narrow gap space under the condition of using a straight handle wire feeding tube 30. Pointing to the side wall of the welding workpiece, which not only ensures that the welding arc points to the side wall of the welding workpiece, but also ensures the fusion of the side wall of the welding workpiece.

[0046] figure 2 The embodiment of multi-wire narrow-gap welding shown in (b) uses at least two wires, and the contact tip 20 is actually composed of a pair of contact tips 20A and 20B, pointing to the two side walls of the narrow-gap groove respectively. In order to improve welding efficiency, multi-wire narrow-gap welding ...

Embodiment 3

[0049] The current distribution of the phalanx multi-wire arc welding system can be controlled by the wire feed speed of the welding wire 40 . With equal wire feed speeds for all welding wires 40 , the current is evenly distributed on each welding wire 40 . When the wire feeding speeds are not equal: the welding wire 40 with a high wire feeding speed corresponds to a high welding current; the welding wire 40 with a low wire feeding speed corresponds to a low welding current.

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Abstract

The invention discloses a multi-power-supply parallel multi-wire high-efficiency electric arc welding device and application thereof. The device comprises a plurality of independent welding power supplies, a plurality of independent wire feeding mechanisms, a multi-wire welding gun which can be densely arranged, and contact tubes, wherein the welding power supplies, the wire feeding mechanisms, the multi-wire welding gun and the contact tubes are sequentially connected. The independent welding power supplies can be constant in voltage or current. Welding wires are driven by the independent wire feeding mechanisms respectively. The contact tubes can be multi-wire integrated contact tubes with bent channels or multiple embedded type contact tubes. The welding wire distribution mode of the multi-wire welding gun which can be densely arranged is determined according to requirements of the welding technology. In the welding process, the welding device is suitable for common welding wires and also suitable for cable welding wires and single welding wire and cable welding wire combinations. According to the device, the welding efficiency can be greatly improved, the welding production efficiency is greatly improved, the welding joint quality is improved, the consumption of welding materials is effectively reduced, and the device is especially suitable for narrow gap welding of thick-wall materials.

Description

technical field [0001] The application belongs to the field of welding technology, and in particular relates to a multi-power parallel multi-wire high-efficiency arc welding device and its application. Background technique [0002] Arc welding is one of the most important metal joining techniques, and about half of the steel is processed by welding to produce the final product. How to improve welding efficiency is an important issue in welding production. It is generally believed that the use of automated welding methods, such as robot welding, can improve welding efficiency relative to manual work, but the actual effect is very limited. This is because the essential issue of welding efficiency is still the filling efficiency of welding wire, just as the main basis for the current welding efficiency assessment is the amount of welding wire consumed per unit time, also known as welding wire deposition rate. The use of multi-wire arc welding is undoubtedly an effective way t...

Claims

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Application Information

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IPC IPC(8): B23K9/133B23K9/10
CPCB23K9/10B23K9/1075B23K9/133
Inventor 刘冲浦娟耿琪魏宏兵
Owner 南京引力工业焊接技术研究院有限公司
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