CN1927516A - Welding torch for ultra-narrow gap arc welding - Google Patents
Welding torch for ultra-narrow gap arc welding Download PDFInfo
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- CN1927516A CN1927516A CN 200610042822 CN200610042822A CN1927516A CN 1927516 A CN1927516 A CN 1927516A CN 200610042822 CN200610042822 CN 200610042822 CN 200610042822 A CN200610042822 A CN 200610042822A CN 1927516 A CN1927516 A CN 1927516A
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Abstract
The invention relates to a welding gun used in ultra-narrow arc welding. Wherein, the godet tube 8 is mounted on the welding gun base 6; the welding wire 2 via feeding wheel 3 enters into godet tube 8; two welding agent bands 18 via band feeding wheel 4 enter into band guide tube 5; two plate conductive opens 10 both have wedge sections, via spring plates 7 to be mounted on the welding gun base 6; the opens 10a, 10b have V-shaped groove through with welding wires; two welding agent bands 18 are separated by opens 10a, 10b when passing through the band guiding tube 5. The invention is characterized in that the two insulated plates 1 at out side of conductive opens 10a, 10b are mounted with two guide rods 11.
Description
Technical field
The present invention relates to the arc welding technical field, specifically is to be used for the welder that ultra-narrow gap arc welding connects.
Technical background
Along with the application of welded maximization and high-strength steel material, require to adopt more and more thicker steel plate and the joint performance that obtains becoming better and better.Narrow gap welding connects owing to have advantages such as the bevel end area is little, heat input is low, joint distortion is little, thereby is used as a kind of efficient, energy-conservation, welding method that joint performance is good, is widely used in various large-scale important structure.Yet existing various narrow gap welding methods generally all adopt the mode of electric arc swing or electric arc rotation good to guarantee the fusion of groove two side, thereby used welding equipment complex structure, and accuracy of alignment requires high; In addition, when adopting " I " type groove gap length weld interval degree 〉=8mm, thereby gap width can not continue to reduce again, otherwise easily causes electric arc to rise out along the gap sidewall, thereby welding process can't be carried out.
This invention is to do protective gas with Ar gas; adopting gap width is " I " type groove of 5mm; under the situation of not swinging (rotation) electric arc, two solder flux bands (will be made on thin steel band two surfaces by the solder flux extrusion that medicinal powder makes) are sent into arc region along the welding wire both sides; utilize the solder flux band that electric arc and two side isolation is soaring to prevent electric arc, thereby realize a kind of molten electrode protected by gas arc-welding method of ultra-narrow gap welding.
Summary of the invention
The purpose of this invention is to provide a kind of can regulate welding band and welding wire feeding speed and fusing amount, can constraint arc and the arc welding torch of gas shield, cooling effect can be provided.
The present invention is the welding gun that is used for ultra-narrow gap arc welding, wire leading pipe 8 is installed on the welding gun bearing 6, welding wire 2 is through wire feed rolls 3, enter wire leading pipe 8, article two, solder flux band 18 enters conduction band pipe 5 through feed roller 4, two board-like ignition tips 10, the cross section of 10b is lozenges, be installed on the welding gun bearing 6 by spring leaf 7 respectively, at board-like ignition tip 10a, have the V-arrangement groove that welding wire 2 passes through on the 10b, article two, solder flux band 18 process conduction band pipes 5 backs are by board-like ignition tip 10a, the lozenges of 10b separates, at two board-like ignition tip 10a, be separately installed with a guide post 11 on the insulation board 1 in the 10b outside.Guide post 11 is rotatably connected with being connected to of insulation board 1.Wireway 17 is installed in respectively on two board-like ignition tip 10a, the 10b outside, has aperture 19 on the wireway 17 that is installed in two board- like ignition tip 10a, 10b lower end.
Board-like ignition tip of the present invention contacts well with welding wire, and welding arc stablility is reliable.The bottom of wireway 17 is evenly distributed with aperture 19, and protective gas is ejection vertically downward from aperture 19, thereby molten drop, electric arc and molten bath are effectively protected.Guide post 11 mainly the acting as when welding that enters gap portion prevents that board- like ignition tip 10a, 10b and gap sidewall from contacting and limiting the distance between board- like ignition tip 10a, 10b and the gap sidewall, thereby assurance solder flux band can be sent into the gap smoothly.In addition, because relying on, the solder flux band send band motor 16 that the power of sending to is provided downwards, so when welding the solder flux band and the feed rate of welding wire than adjustable, so the feed rate that the addition of the growing amount of slag and alloying element can be by adjusting solder flux band and welding wire is than being controlled.
Description of drawings
Fig. 1 is the front view of welding gun of the present invention, and Fig. 2 is a side view.
The specific embodiment
As shown in Figure 1, wire leading pipe 8 is installed on the welding gun bearing 6, welding wire 2 through wire feed rolls 3, enter wire leading pipe 8, article two, solder flux band 18 enters conduction band pipe 5 through feed roller 4, the cross section of two board-like ignition tips 10 is lozenges, be installed on the welding gun bearing 6 by spring leaf 7 respectively, on board- like ignition tip 10a, 10b, have the V-arrangement groove that welding wire 2 passes through, article two, solder flux band 18 separates through the lozenges of conduction band pipe 5 backs by board- like ignition tip 10a, 10b, is separately installed with a guide post 11 on the insulation board 1 in two board- like ignition tip 10a, 10b outsides.Guide post 11 is rotatably connected with being connected to of insulation board 1.Wireway 17 is installed in respectively on two board-like ignition tip 10a, the 10b outside, has aperture 19 on the wireway 17 that is installed in two board- like ignition tip 10a, 10b lower end.
As shown in Figure 1, insulation board 1 is used for fixing each parts of welding gun and whole welding gun is installed on the outside support.Feed roller 4 is sent the solder flux band to arc region, and the feed roller surface is with rubber ring with the power of sending to that increases the solder flux band and prevent solder flux band and the relative slip of feed roller generation.Conduction band pipe 5 plays a part to be the solder flux tape guide, because solder flux band rigidity is limited, unavoidable resistance is excessive to be produced bending and be stuck because of sending to, has had conduction band pipe solder flux band just can successfully be sent into electric arc.Welding gun bearing 6 is used for connecting and stationary spring 7, wire leading pipe 8 and conduction band pipe 5.Wire leading pipe 8: playing a part is that welding wire leads, and is mainly used in to make welding wire and board-like ignition tip V-shaped groove centering send resistance to reduce welding wire.Contiguous block 9 is mainly used in and connects board-like ignition tip 10, spring leaf 7, wireway 17 and wiring copper sheet 25.Board- like ignition tip 10a, 10b: because the gage of wire that adopts is 1.6mm, so board-like ignition tip thickness is elected 2mm as and is had V-shaped groove, board-like ignition tip is mainly used in to the welding wire conductive electric current and utilizes the pressure of two spring leafs tightly to be clipped in welding wire in the V-shaped groove, have lozenges on two of a board-like ignition tip faces therein in addition, this lozenges is used for two solder flux bands are strutted and the resistance when reducing the solder flux band and sending to.Guide post 11 mainly act as and prevents that board- like ignition tip 10a, 10b and gap sidewall from contacting and limiting the distance between board- like ignition tip 10a, 10b and the gap sidewall, thereby assurance solder flux band can be sent into the gap smoothly; In addition, also can be by rotary steering bar 11 to regulate the distance between the guide post of both sides.Wireway 17 is used for carrying protective gas to arc region when welding, the external diameter of wireway is 3mm, and internal diameter is 1.5mm, is evenly distributed with aperture 19 in the bottom of wireway, protective gas is ejection vertically downward from aperture 19, thereby molten drop, electric arc and molten bath are effectively protected; In addition, wireway 17 couples of board- like ignition tip 10a, 10b also have cooling effect.Spring leaf 22 is by the elastic deformation force of adjustment screw 23 with regulating spring sheet 22, thereby it is non-slip to guarantee solder flux band and feed roller to make 24 pairs of solder flux band applications of pinch roller add enough pressure.Wiring copper sheet 25 is used for fixing the positive wire of the source of welding current.Send band motor 16 to form jointly, therefore be added in the feed rate that the dc voltage on the motor can be regulated the solder flux band by adjusting by motor and decelerator.
Weldingvoltage is 21V, and welding current is 240～260A, and weldering speed is 8.4mm/s, and wire feed rate is 66mm/s, and the stem elongation degree is 20mm, and solder flux band feed rate is 10mm/s, and the solder flux tape thickness is 0.8mm, and groove gap is that " I " type and width are 5mm.The solder flux composition of solder flux band is mainly: marble and fluorite.
Adopting gap width during welding is " I " type groove of 5mm; doing protective gas with Ar gas and do not swinging under the situation of (rotation) electric arc; two solder flux bands (will be made on thin steel band two surfaces by the solder flux extrusion that medicinal powder makes) are sent into arc region along the welding wire both sides; utilize the solder flux band that electric arc and two side isolation is soaring to prevent electric arc, so electric arc is constrained on certain spatial dimension internal combustion.Solder flux band and two side are heated fusing in this scope, and form weld seam 21 with the welding wire of fusing, enter solder flux in the molten bath and then finish and form slag behind a series of metallurgical reaction and cover weld seam 21 surfaces, will can weld down one after the welding slag cleaning.
Claims (3)
1, the welding gun that is used for ultra-narrow gap arc welding, wire leading pipe (8) is installed on the welding gun bearing (6), welding wire (2) is through wire feed rolls (3), enter wire leading pipe (8), article two, solder flux band (18) enters conduction band pipe (5) through feed roller (4), two board-like ignition tip (10a, cross section 10b) is lozenges, be installed on the welding gun bearing (6) by spring leaf (7) respectively, at board-like ignition tip (10a, have the current V-arrangement groove of welding wire (2) 10b), article two, solder flux band (18) process conduction band pipe (5) back is by board-like ignition tip (10a, lozenges 10b) separately is characterized in that at two board-like ignition tip (10a, 10b) be separately installed with a guide post (11) on Wai Ce the insulation board (1).
2, the welding gun that is used for ultra-narrow gap arc welding according to claim 1 is characterized in that guide post (11) and being connected to of insulation board (1) are rotatably connected.
3, the welding gun that is used for ultra-narrow gap arc welding according to claim 1, it is characterized in that wireway (17) is installed in respectively on two board-like ignition tips (10a, 10b) outside, has aperture (19) on the wireway (17) that is installed in two board-like ignition tips (10a, 10b) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610042822 CN1927516A (en) | 2006-05-12 | 2006-05-12 | Welding torch for ultra-narrow gap arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610042822 CN1927516A (en) | 2006-05-12 | 2006-05-12 | Welding torch for ultra-narrow gap arc welding |
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| Publication Number | Publication Date |
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| CN1927516A true CN1927516A (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610042822 Pending CN1927516A (en) | 2006-05-12 | 2006-05-12 | Welding torch for ultra-narrow gap arc welding |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941113A (en) * | 2010-06-11 | 2011-01-12 | 兰州交通大学 | Welding gun of ultra narrow gap and welding method |
| CN102151955A (en) * | 2011-03-01 | 2011-08-17 | 兰州理工大学 | Ultra-narrow gap welding device and method for U-shaped flux strip constraining arc |
| CN102357722A (en) * | 2011-10-26 | 2012-02-22 | 上海交通大学 | Combined multi-parameter adjustable narrow-gap TIG (Tungsten Inert Gas) welding torch |
| CN102642070A (en) * | 2012-04-20 | 2012-08-22 | 哈尔滨工业大学 | Narrow-gap GMAW (gas metal arc welding) method for band electrode |
| CN102785017A (en) * | 2012-08-02 | 2012-11-21 | 中国石油化工集团公司 | Composite welding process used in narrow space |
| CN102896399A (en) * | 2012-10-23 | 2013-01-30 | 兰州理工大学 | Super-narrow-gap electric arc welding device for butting steel rails |
| CN105478973A (en) * | 2016-01-28 | 2016-04-13 | 兰州理工大学 | Ultra-narrow gap electric arc welding device with flux piece feeding chains |
| CN107511568A (en) * | 2017-09-01 | 2017-12-26 | 南昌大学 | A kind of TIG welds wire feed pen |
-
2006
- 2006-05-12 CN CN 200610042822 patent/CN1927516A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941113A (en) * | 2010-06-11 | 2011-01-12 | 兰州交通大学 | Welding gun of ultra narrow gap and welding method |
| CN101941113B (en) * | 2010-06-11 | 2012-12-05 | 兰州交通大学 | Welding gun of ultra narrow gap |
| CN102151955A (en) * | 2011-03-01 | 2011-08-17 | 兰州理工大学 | Ultra-narrow gap welding device and method for U-shaped flux strip constraining arc |
| CN102357722B (en) * | 2011-10-26 | 2013-05-22 | 上海交通大学 | Combined multi-parameter adjustable narrow-gap TIG (Tungsten Inert Gas) welding torch |
| CN102357722A (en) * | 2011-10-26 | 2012-02-22 | 上海交通大学 | Combined multi-parameter adjustable narrow-gap TIG (Tungsten Inert Gas) welding torch |
| CN102642070A (en) * | 2012-04-20 | 2012-08-22 | 哈尔滨工业大学 | Narrow-gap GMAW (gas metal arc welding) method for band electrode |
| CN102785017B (en) * | 2012-08-02 | 2015-07-08 | 中国石油化工集团公司 | Composite welding process used in narrow space |
| CN102785017A (en) * | 2012-08-02 | 2012-11-21 | 中国石油化工集团公司 | Composite welding process used in narrow space |
| CN102896399A (en) * | 2012-10-23 | 2013-01-30 | 兰州理工大学 | Super-narrow-gap electric arc welding device for butting steel rails |
| CN102896399B (en) * | 2012-10-23 | 2014-10-08 | 兰州理工大学 | Super-narrow-gap electric arc welding device for butting steel rails |
| CN105478973A (en) * | 2016-01-28 | 2016-04-13 | 兰州理工大学 | Ultra-narrow gap electric arc welding device with flux piece feeding chains |
| CN107511568A (en) * | 2017-09-01 | 2017-12-26 | 南昌大学 | A kind of TIG welds wire feed pen |
| CN107511568B (en) * | 2017-09-01 | 2022-11-08 | 南昌大学 | TIG welding wire feeding pen |
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