CN202185671U - Double-side gas shielded welding system - Google Patents

Double-side gas shielded welding system Download PDF

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Publication number
CN202185671U
CN202185671U CN2011202593060U CN201120259306U CN202185671U CN 202185671 U CN202185671 U CN 202185671U CN 2011202593060 U CN2011202593060 U CN 2011202593060U CN 201120259306 U CN201120259306 U CN 201120259306U CN 202185671 U CN202185671 U CN 202185671U
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CN
China
Prior art keywords
welding
welded
gas shielded
welding electrode
shielded arc
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Expired - Fee Related
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CN2011202593060U
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Chinese (zh)
Inventor
杨青春
俞建
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SHANGHAI QIYUAN AIR SEPARATION TECHNOLOGY DEVELOPMENT Co Ltd
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SHANGHAI QIYUAN AIR SEPARATION TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The utility model provides a double-side gas shielded welding system, which comprises a gas supply system and a welding system. The welding system comprises a pair of gas shielded welding electrodes including two gas shielded welding electrodes including an outer welding electrode and an inner welding electrode. The outer welding electrode is positioned outside a tubular plate to be welded and serves as an object to be welded, the inner welding electrode is positioned inside the tubular plate to be welded, and the outer welding electrode and the inner welding electrode are in mirror distribution on the tubular wall of the tubular plate to be welded. When tubular workpieces are welded by using the double-side gas shielded welding system, the need of protective gases such as argon, carbon dioxide and the like for the back of a weld is avoided. The welding by the double-side gas shielded welding system is simple and easy to operate, welding joints of the welded workpiece are formed well, and accordingly the welding effect of the workpieces is improved effectively, and the welding quality of the finished workpieces is improved effectively.

Description

A kind of two-sided gas shielded arc welding system
Technical field
The utility model relates to a kind of welding technology device, relates in particular to a kind of two-sided gas shielded arc welding system that can carry out gas shielded arc welding to plate to be welded two sides simultaneously.
Background technology
Electric welding is the main method that connects between metal current and the alloy material thereof, and its huge heat that utilizes electric energy to produce can melt metals such as iron and steel, stainless steel, and incorporates welding rod rapidly at two intermetallics that join, thereby improves the amalgamation between the metal.In welding process, thermal source forms the molten bath with the rapid heat fused of two workpiece interfaces to be welded.The molten bath moves forward with thermal source, and the cooling back forms continuous weld and two workpiece are connected in one.
And when the welding of some situation; Because atmosphere directly contacts with the molten bath of high temperature, oxygen will oxidized metal and various alloying element, and entering molten baths such as the nitrogen in the atmosphere, water vapour; Also can in subsequent cooling process, in weld seam, form defectives such as pore, slag inclusion, crackle; Worsen the quality and the performance of weld seam, thereby when welding, need protect to completely cut off atmosphere, to guarantee the quality of welding through protective gas butt welded seam back sides such as argon gas, the titanium dioxide pools.This is a gas shielded arc welding.Compare with other electric welding types, the electric arc of gas shielded arc welding and the observability in molten bath are good, can regulate welding parameter according to the molten bath situation in the welding process; Welding process is easy to operate, does not have slag or slag is seldom arranged, and postwelding covers does not basically need scarfing cinder.Electric arc heat under the compression of protection air-flow is concentrated, and speed of welding is very fast, and the molten bath is less, and the heat affected area is narrow, and the weldment post welding distortion is little.Help the mechanization welding of the mechanization and the automation, particularly locus of welding process.Can weld chemical activity strong with the magnesium that is prone to form the high-melting-point oxide-film, aluminium, admire and alloy.
Yet in the gas shielded arc welding process, for the high workpiece to be welded of ask for something, often adopt two-sided welding procedure, promptly after the one side of workpiece was accomplished welding, the another side at weld seam once welded behind the back chipping once more.Because atmosphere directly contacts with the molten bath of high temperature; Oxygen will oxidized metal and various alloying element; And entering molten baths such as the nitrogen in the atmosphere, water vapour also can form defectives such as pore, slag inclusion, crackle in weld seam in subsequent cooling process, worsen the quality and the performance of weld seam.Thereby when surface soldered, need the butt welded seam back side to carry out protection work such as argon gas, carbon dioxide, thereby atmosphere is protected to completely cut off in the butt welded seam back side.And at the workpiece to be welded for tubular; Generally at first weld for cylinder type outer workpiece to be welded; In its welding procedure; Thereby need existing closed at both ends also constantly to protect to completely cut off atmosphere, to guarantee the quality of welding to its inner protective gas butt welded seam back sides such as argon gas, the titanium dioxide pool that feed to tubular workpiece to be welded.Welding but this technological operation trouble, cost is high.
The utility model content
The utility model provides a kind of two-sided gas shielded arc welding system, and it adopts a pair of welding electrode to weld simultaneously on the welding ends two sides of workpiece to be welded, thus the back side problems such as gas shield, and welding procedure trouble that need protection when solving above-mentioned single face welding.
The two-sided gas shielded arc welding of the utility model system realizes its purpose through following technical scheme:
A kind of two-sided gas shielded arc welding system comprises air supply system and welding system, and wherein: said welding system comprises one group of gas shielded arc welding electrode pair; Described gas shielded arc welding electrode pair comprises two gas shield welding electrodes, and one of them is outer welding electrode, and one is interior welding electrode; Said outer welding electrode is positioned at as outside the cylinder type of the thing to be welded plate to be welded, and said interior welding electrode is positioned at said cylinder type plate to be welded; Described outer welding electrode and interior welding electrode are the mirror image distribution with the barrel of said cylindrical shape plate to be welded.
Above-mentioned two-sided gas shielded arc welding system, wherein: said welding system also comprises guide track system; Said guide track system comprises two parallel guide rails, is outside weld guide rail and interior weldering guide rail; Be respectively equipped with a slide rail pedestal on described two guide rails; Described outer welding electrode and interior welding electrode lay respectively at the slide rail pedestal top of said outside weld guide rail and interior weldering guide rail.
Above-mentioned two-sided gas shielded arc welding system, wherein: the central axes of described two guide rails and said cylinder type plate to be welded, and said outside weld guide rail to be positioned at said cylinder type plate to be welded outside, and in said the weldering guide rail through the two ends of said cylinder type weldering plate.
Above-mentioned two-sided gas shielded arc welding system, wherein: also comprise a turning rolls that is used to place cylinder type plate to be welded.
Above-mentioned two-sided gas shielded arc welding system, wherein: be respectively equipped with gas tip on described two gas shield welding electrodes, said gas tip is connected with said air supply system through conduit.
Adopt the advantage of the two-sided gas shielded arc welding of the utility model system to be:
When adopting the two-sided gas shielded arc welding of the utility model system to carry out cylinder type workpiece welding processing; Exempted the trouble that needs protective gas protections such as argon gas, carbon dioxide for back of weld, and the welding process that adopts the utility model to carry out, operation is simple; And the workpiece after the welding; Its soldered forming, the welding effect of so effective raising workpiece, and the welding quality of the workpiece after accomplishing.
Description of drawings
Fig. 1 is the structural representation of the two-sided gas shielded arc welding of the utility model system;
Fig. 2 is the vertical view of the welding system of the two-sided gas shielded arc welding of the utility model system.
The specific embodiment
As depicted in figs. 1 and 2; A kind of two-sided gas shielded arc welding system; Comprise welding system and for said welding system provides the air supply system 6 of protective gas, said welding system comprises one group of gas shielded arc welding electrode pair, it comprises two gas shield welding electrodes; One of them is that 11, one of outer welding electrodes are interior welding electrode 12; Be respectively equipped with gas tip on described two gas shield welding electrodes 11 and 12; And said gas tip is connected with said air supply system through conduit; In the electric welding process in order to emitting gas, thereby back of weld is protected isolated atmosphere, thereby improve welding quality.
Among the figure; In the present embodiment, labor cost to be welded is a plate 5 to be welded cylindraceous, and the utility model also comprises a turning rolls 3 that is used to place said plate to be welded 5; Realize in the welding process, make said plate to be welded 5 on said turning rolls 3, roll in order through electric control system.Said outer welding electrode 11 is positioned at plate to be welded 5 outsides, and welding electrode 12 is positioned at said cylinder type plate to be welded 5 inside in said; Described outer welding electrode 11 and interior welding electrode 12 are the mirror image distribution with the barrel of plate 5 to be welded, weld can for like this two sides of plate 5 to be welded simultaneously.In traditional handicraft, during at first to plate to be welded 5 surface soldered of said cylinder type, need be with plate 5 closed at both ends to be welded; And portion charges into protective gas such as argon gas, carbon dioxide within it; In order to avoiding in the welding process, because atmosphere directly contacts with the molten bath of high temperature, oxygen will oxidized metal and various alloying element; And the nitrogen in the atmosphere, water vapour etc. get into the molten bath, also can in subsequent cooling process, in weld seam, form the problem of defectives such as pore, slag inclusion, crackle.And employing present embodiment welding by both sides connection technology; Not only avoid the trouble of welding step by step for plate to be welded 5 two sides successively, avoided the complicated technology that in 5 of plates to be welded, injects protective gas of above-mentioned traditional handicraft simultaneously, simplified welding procedure; Effectively reduce the cost expenditure, improve welding quality.
The utility model also comprises guide track system, and it comprises two parallel guide rails, is respectively outside weld guide rail 21 and interior weldering guide rail 22; Be respectively equipped with a slide rail pedestal on described two guide rails; Said outside weld guide rail 21 is provided with slide rail pedestal 41; And weldering guide rail 22 is provided with slide rail pedestal 42 in said; Described outer welding electrode 11 lays respectively at slide rail pedestal 42 tops of the slide rail pedestal 41 and the interior weldering guide rail of said outside weld guide rail with interior welding electrode 22, thereby and can realize that through the electric control system of outside electrode slides in order on guide rail.
Among the figure; Described two guide rails 21 and 22 all with the central axes of the plate to be welded 5 of said cylinder type; And it is outside that said outside weld guide rail 21 is positioned at said cylinder type plate to be welded, and weldering guide rail 22 one of which ends are fixed on metope in said, and its integral body is through the two ends of the plate to be welded 5 of said cylinder type.Below the plate to be welded 5 of said cylinder type, be provided with owing to place the turning rolls 3 of said plate 5 to be welded, be used for welding process, realize the orderly rolling of the plate to be welded 5 of said cylinder type through said turning rolls 3.Such structure makes said turning rolls 3 be positioned at said weldering guide rail 22 belows.During use; Modulate the position of said two guide rails 21 and 22 earlier; Promptly adjust said two gas shield welding electrodes, outer welding electrode 11 and interior welding electrode 12 positions, and cooperate outside electric control system control; Realize that said outer welding electrode 11 slides on guide rail with interior welding electrode 12, and drive the said orderly rolling of stating the plate to be welded 5 of cylinder type through said turning rolls 3.Thereby realize the welding of the plate to be welded 5 of cylinder type.
And the two-sided gas shielded arc welding of the utility model system is when carrying out the workpiece welding processing; Two welding electrodes are realized welding simultaneously on the weld seam two sides of the cylinder type plate to be welded of treating the electric welding workpiece, thereby have exempted the trouble that the back side needs protective gas such as argon gas, carbon dioxide to protect, and its welding procedure cost is lower; And its operation is simple; Its soldered forming of workpiece after the welding can effectively improve the welding effect of workpiece, with operating efficiency.
It should be noted that in the utility model that the technical staff that structure such as said air supply system and gas shield welding electrode and connected mode are the present technique field knows general knowledge, no longer do elaboration more at this.
More than the specific embodiment of the utility model is described in detail, but it is just as example, the utility model is not restricted to the specific embodiment of above description.To those skilled in the art, any equivalent modifications that the utility model is carried out with substitute also all among the category of the utility model.Therefore, impartial conversion and the modification under spirit that does not break away from the utility model and scope, done all should be encompassed in the scope of the utility model.

Claims (5)

1. two-sided gas shielded arc welding system; Comprise air supply system and welding system, it is characterized in that: said welding system comprises one group of gas shielded arc welding electrode pair, and described gas shielded arc welding electrode pair comprises two gas shield welding electrodes; One of them is outer welding electrode, and one is interior welding electrode; Said outer welding electrode is positioned at as outside the cylinder type of the thing to be welded plate to be welded, and said interior welding electrode is positioned at said cylinder type plate to be welded; Described outer welding electrode and interior welding electrode are the mirror image distribution with the barrel of said cylindrical shape plate to be welded.
2. two-sided gas shielded arc welding according to claim 1 system, it is characterized in that: said welding system also comprises guide track system; Said guide track system comprises two parallel guide rails, is outside weld guide rail and interior weldering guide rail; Be respectively equipped with a slide rail pedestal on described two guide rails; Described outer welding electrode and interior welding electrode lay respectively at the slide rail pedestal top of said outside weld guide rail and interior weldering guide rail.
3. two-sided gas shielded arc welding according to claim 2 system; It is characterized in that: the central axes of described two guide rails and said cylinder type plate to be welded; And it is outside that said outside weld guide rail is positioned at said cylinder type plate to be welded, and the two ends that the weldering guide rail welds plate in said through said cylinder type.
4. two-sided gas shielded arc welding according to claim 3 system is characterized in that: also comprise a turning rolls that is used to place cylinder type plate to be welded.
5. two-sided gas shielded arc welding according to claim 1 system, it is characterized in that: be respectively equipped with gas tip on described two gas shield welding electrodes, said gas tip is connected with said air supply system through conduit.
CN2011202593060U 2011-07-21 2011-07-21 Double-side gas shielded welding system Expired - Fee Related CN202185671U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689122A (en) * 2012-06-11 2012-09-26 珠海市新维焊接器材有限公司 Large-diameter pipeline welding device
CN102744499A (en) * 2012-07-16 2012-10-24 中国化学工程第七建设有限公司 Double-side double-arc welding process for root layer of pipeline
CN106903412A (en) * 2017-04-28 2017-06-30 成都大漠石油技术有限公司 Beneficial to the device for improving large-scale pipeline welding quality
CN109202224A (en) * 2018-09-27 2019-01-15 天津大学 Wide aperture pipeline double sides double arc welding system and method based on K-TIG
CN110560956A (en) * 2019-08-19 2019-12-13 国家电网有限公司 Circular seam welding device
CN117583728A (en) * 2023-11-17 2024-02-23 菲尔森智能装备(江苏)有限公司 Welding machine for welding crane boom

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102689122A (en) * 2012-06-11 2012-09-26 珠海市新维焊接器材有限公司 Large-diameter pipeline welding device
CN102689122B (en) * 2012-06-11 2015-04-15 珠海市新维焊接器材有限公司 Large-diameter pipeline welding device
CN102744499A (en) * 2012-07-16 2012-10-24 中国化学工程第七建设有限公司 Double-side double-arc welding process for root layer of pipeline
CN102744499B (en) * 2012-07-16 2015-05-27 中国化学工程第七建设有限公司 Double-side double-arc welding process for root layer of pipeline
CN106903412A (en) * 2017-04-28 2017-06-30 成都大漠石油技术有限公司 Beneficial to the device for improving large-scale pipeline welding quality
CN109202224A (en) * 2018-09-27 2019-01-15 天津大学 Wide aperture pipeline double sides double arc welding system and method based on K-TIG
CN110560956A (en) * 2019-08-19 2019-12-13 国家电网有限公司 Circular seam welding device
CN117583728A (en) * 2023-11-17 2024-02-23 菲尔森智能装备(江苏)有限公司 Welding machine for welding crane boom

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120411

Termination date: 20190721

CF01 Termination of patent right due to non-payment of annual fee