CN109352146A - A kind of mariages narrow clearance welding gun - Google Patents
A kind of mariages narrow clearance welding gun Download PDFInfo
- Publication number
- CN109352146A CN109352146A CN201811337955.0A CN201811337955A CN109352146A CN 109352146 A CN109352146 A CN 109352146A CN 201811337955 A CN201811337955 A CN 201811337955A CN 109352146 A CN109352146 A CN 109352146A
- Authority
- CN
- China
- Prior art keywords
- welding
- retaining wall
- side retaining
- welding wire
- antetheca
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 94
- 238000010891 electric arc Methods 0.000 claims abstract description 3
- 230000004907 flux Effects 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 229910000679 solder Inorganic materials 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/321—Protecting means
Abstract
The invention discloses a kind of mariages narrow clearance welding guns; on the one hand pass through the first weld assembly of setting and the second weld assembly; and the welding wire of two weld assemblies is respectively positioned in the protection scope of arc protection device; to when carrying out narrow gap welding; congruent melting pond can be generated between two welding wires, welded piece narrow gap weld seam two side walls are stablized and are fused.On the other hand by way of arc protection device is arranged to antetheca and rear wall, front and rear wall is located on the longitudinally of weld seam, can smoothly enter into the groove of the narrow gap weld seam of welded piece, Butt welding gun will not go deep into groove due to groove width is narrow and causes to interfere.And it in the two side walls for the Narrow sloping-glot that antetheca and respective two sides of rear wall are resisted against welded piece, and surrounds to form arc protection chamber with two side walls, to realize the protection for carrying out effective gas or solder flux to electric arc, improves the stability of welding.
Description
Technical field
The present invention relates to a kind of welding equipments, and in particular to a kind of mariages narrow clearance welding gun.
Background technique
Narrow gap welding is a kind of welding procedure that can largely reduce weld metal loading.Current narrow gap welding only has
One root wire, when welding, welding wire will swing, to guarantee the fusion of two metal sidewalls.
As shown in Figure 1, electrode 3, conductive nozzle 2 and welding wire 1 go deep into the gap of two sides workpiece 4.In order to good
Two sides workpiece is fused, welding wire must swing.But in the gap of 10~15mm, it is desirable to realize conductive nozzle or electrode
It swings, also or realizes that welding wire swings, it is all extremely difficult in mechanical structure and in electrical control.Therefore, although
" the efficient feature " of this narrow gap welding technology is very attractive, but does not get a lot of applications at present.Study carefully its original
Because being the phenomenon that two metal sidewalls often generate incomplete fusion.Meanwhile because of narrow space, the incomplete fusion of generation is difficult to repair again.
Tandem Double Wire Welding and similar double wire hidden arc welding can make a root wire fuse left wall due to there is two root wires
Metal, a root wire fuse right wall metal, and being formed by weld width can reach 20mm, oneself is greater than two intermetallic gap 10-
15mm, therefore welding wire is not required to swing, so that it may fuse two sides wall well, the mechanical structure of equipment and electrical control all can letters
Change, effectively improves the quality of narrow gap welding sidewall fusion.But how could by Double Wire Welding it is stable be applied to narrow gap welding
In, suitable welding gun is problem urgently to be resolved.
Summary of the invention
Goal of the invention: in order to overcome the drawbacks of the prior art, the present invention provides a kind of mariages narrow clearance welding guns.The welding gun
Can in narrow gap weld seam steady operation.
Technical solution: a kind of mariages narrow clearance welding gun of the present invention, including the first weld assembly, the second weld assembly
And arc protection device, first weld assembly have the first welding wire, second weld assembly has the second welding wire, the
The working end of one welding wire and the second welding wire is respectively positioned in the protection scope of arc protection device；Before the arc protection device includes
Wall component, rear wall assembly and protection nozzle top cover；The antetheca component has the preceding outline border connecting with protection nozzle top cover, is set to
Antetheca in preceding outline border, two sides of the antetheca are stretched out from the two sides of the preceding outline border respectively；The rear wall assembly has
With the protection nozzle top cover rear outline border connecting, the rear wall that is set in rear outline border, two sides of the rear wall are respectively after described
The two sides of outline border are stretched out；When soldered, two sides of the antetheca and two sides of the rear wall be resisted against respectively by
In the two side walls of the Narrow sloping-glot of welder's part, antetheca, rear wall and described two side walls surround to form arc protection chamber.
Wherein, first weld assembly has the first gun barrel and the first conductive nozzle, first gun barrel and the first conduction
Nozzle connection is in flat cuboid structure, and first welding wire runs through the first gun barrel and the first conductive nozzle；Second welding
Component has the second gun barrel and the second conductive nozzle, and second gun barrel and the connection of the second conductive nozzle are in flat cuboid knot
Structure；Second welding wire runs through the second gun barrel and the second conductive nozzle.Gun barrel is connect in flat cuboid structure with conductive nozzle
The thickness that conductive nozzle and gun barrel can be reduced while guaranteeing sufficiently conductive area, to adapt to the weld seam of narrow gap welding.
It is described in order to further decrease the space on the first weld assembly and the second weld assembly occupancy weld width direction
First weld assembly and the second weld assembly are arranged along the direction front-back staggered of welding.Wherein, the direction of welding is welding gun shifting
Dynamic direction, the i.e. length direction of weld seam.
First through hole parallel with the first welding wire, the second gun barrel setting and the second welding wire is arranged in first gun barrel
The second parallel through hole；First welding wire and the second welding wire are respectively positioned between the first through hole and the second through hole.To subtract
The spacing of small two root wire makes that stable congruent melting pond is more readily formed when welding.
The utility model has the advantages that the present invention is different from existing welding gun, by the first weld assembly of setting and the second weld assembly, two
The welding wire of weld assembly is respectively positioned in the protection scope of arc protection device.On the one hand it can be generated when carrying out narrow gap welding
Realize that stablizing for two sides workpiece fuses in congruent melting pond；On the other hand by the way that arc protection device to be arranged to the shape of antetheca and rear wall
Formula, front and rear wall are located on the longitudinally of weld seam, can smoothly enter into the groove of narrow gap weld seam, will not be due to groove width is narrow
Butt welding gun, which gos deep into groove, to be caused to interfere.And antetheca and respective two sides of rear wall are resisted against the narrow gap slope of welded piece
It in the two side walls of mouth, and surrounds to form arc protection chamber with two side walls, effective gas is carried out to electric arc to realize
Or the protection of solder flux, improve the stability of welding.
Detailed description of the invention
Fig. 1 is prior art defect schematic diagram；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is Fig. 2 along A-A to schematic cross-sectional view
Fig. 4 is Fig. 2 along B to partial structural diagram；
Fig. 5 is embodiment 1 structural schematic diagram of the Fig. 2 along B to observation left side retaining wall and right side retaining wall；
Fig. 6 is embodiment 2 structural schematic diagram of the Fig. 2 along B to observation left side retaining wall and right side retaining wall.
Specific embodiment
In the following, being described in further details in conjunction with attached drawing to the present invention.
It should be noted that in the description of the present invention, belonging to the orientation or position of instructions such as " front, back, left, right, up, down "
Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
As shown in Figure 2 and Figure 3, present embodiment discloses a kind of mariages narrow clearance welding gun.The welding gun is realized using mariages
The narrow gap welding of weldering.Including the first weld assembly, the second weld assembly and arc protection device.
Wherein, the first weld assembly has the first welding wire 10a, the first gun barrel 11a, the welding of the first conductive nozzle 12a and first
Power supply 14a.When implementation, the cross section of the first gun barrel 11a and the first conductive nozzle 12a are rectangle, and the size of the two cross section
Unanimously.Half will be removed on the upper thickness of the lower part of first gun barrel 11a and the first conductive nozzle 12a, countersunk head is used after split
Screw connection is in flat cuboid structure, guarantees it with enough conductive areas while to reduce thickness.Second
Weld assembly has the second welding wire 10b, the second gun barrel 11b, the second conductive nozzle 12b and the second source of welding current 14b.Equally, in reality
The cross section of Shi Shi, the second gun barrel 11b and the second conductive nozzle 12b are rectangle, and the two cross section is in the same size.By second
Remove half on the upper thickness of the lower part of gun barrel 11b and the second conductive nozzle 12b, using sunk screw connection in flat after split
Flat cuboid structure guarantees it with enough conductive areas while to reduce thickness.
First welding wire 10a runs through the second gun barrel 11b through the first gun barrel 11a and the first conductive nozzle 12a, the second welding wire 10b
With the second conductive nozzle 12b.First welding wire 10a first source of welding current of connection 14a, second welding wire 10b second source of welding current of connection
14b.The working end of first welding wire 10a and the second welding wire 10b are respectively positioned in the protection scope of arc protection device.
Arc protection device includes antetheca component, rear wall assembly and protection nozzle top cover 15.Wherein, antetheca component have with
The preceding outline border 16 of the protection connection of nozzle top cover 15, the antetheca 17 being set in preceding outline border 16.Two sides of antetheca 17 are respectively from institute
The two sides of outline border 16 are stretched out before stating.Likewise, after rear wall assembly has the rear outline border 18 connecting with protection nozzle top cover 15, is set to
Rear wall 19 in outline border 18.Two sides of rear wall 19 are stretched out from the two sides of rear outline border 18 respectively.
When soldered, two sides of antetheca 17 and two sides of rear wall 19 be resisted against respectively welded piece it is narrow between
20 in the two side walls of gap groove.Antetheca 17, rear wall 19 and two side walls 20 surround to form arc protection chamber.To electricity
Arc carries out the protection of effective gas or solder flux.
In order to further decrease the space on the first weld assembly and the second weld assembly occupancy weld width direction, please join
Fig. 3, the first weld assembly and the second weld assembly is read to arrange along the direction front-back staggered of welding.
And it is further, in order to be passed through protective gas or solder flux into arc protection chamber, the first gun barrel 11a setting and the
The second through hole 13b parallel with the second welding wire 10b is arranged in the first one welding wire 10a parallel through hole 13a, the second gun barrel 11b.
First welding wire 10a and the second welding wire 10b are respectively positioned between the first through hole 13a and the second through hole 13b.That is it first passes through
Through-hole 13a is located in front of the first welding wire 10a, and the second through hole 13b is located at the rear of the second welding wire 10b.Design can make in this way
Two root wires have closer distance as shown in Figure 4, are capable of forming stable congruent melting pond, increase the temperature and volume in molten bath, protect
Hinder two sides workpiece stablizes fusion.
In actual welding, type I groove class Narrow sloping-glot is also not substantially parallel, and has the angle in several years, therefore top
Gap can be larger than the gap of lower part.In order to make antetheca 17, rear wall 19 can adapt to the two side walls 20 of Narrow sloping-glot
Between space change, antetheca 17 and rear wall 19 are splitted into two parts from centre, can activity to two sides
Wall 20 is bonded.Specifically, the antetheca 17 and rear wall 19 all have left side retaining wall and right side retaining wall, the left side retaining wall and right side
The elastic components such as spring or rubber bar 23 are set between retaining wall, and elastic component 23 is directed toward to apply to left side retaining wall and right side retaining wall
The power of two side walls 20.So that left side retaining wall and right side retaining wall can be adjacent to Narrow sloping-glot under the action of elastic component 23
Two side walls 20, and adapt to the variation of various groove widths automatically, guarantee that the leakproofness of arc protection chamber reduces gas leakage.
For left side retaining wall and right side retaining wall, two kinds of embodiments presented below.
Embodiment 1, as shown in figure 5, left side retaining wall 21a and right side retaining wall 22a is in cuboid, left side retaining wall in this example
21a and right side retaining wall 22a opposite side symmetrically offers card slot, and the both ends of elastic component 23 are born against corresponding described
In card slot.
Embodiment 2, as shown in fig. 6, in order to reduce rubbing between left side retaining wall 21b, right side retaining wall 22b and two side walls 20
It wipes, two sides retaining wall is arranged to structure identical and in cylindrical, the upper and lower ends of left side retaining wall 21b and right side retaining wall 22b
It is provided with bearing block 24, elastic component 23 is resisted against on two adjacent bearing blocks 24 of left and right.When welding gun is mobile, 24 edge of bearing block
Side wall 20 slide, cylindrical left side retaining wall 21b and right side retaining wall 22b are rolled in two side walls 20 by the realization of bearing block 24
It is dynamic, reduce frictional force.
Claims (8)
1. a kind of mariages narrow clearance welding gun, which is characterized in that including the first weld assembly, the second weld assembly and arc protection
Device, first weld assembly have the first welding wire (10a), and second weld assembly has the second welding wire (10b), and first
The working end of welding wire (10a) and the second welding wire (10b) is respectively positioned in the protection scope of arc protection device；The arc protection dress
It sets including antetheca component, rear wall assembly and protection nozzle top cover (15)；The antetheca component has with protection nozzle top cover (15) even
The preceding outline border (16) connect, the antetheca (17) being set in preceding outline border (16), two sides of the antetheca (17) are respectively described in
The two sides of preceding outline border (16) are stretched out；The rear wall assembly has the rear outline border (18) connecting with protection nozzle top cover (15), is set to
Rear wall (19) in outline border (18) afterwards, two sides of the rear wall (19) are stretched out from the two sides of the rear outline border (18) respectively；
When soldered, two sides of the antetheca (17) and two sides of the rear wall (19) are resisted against welded piece respectively
In the two side walls (20) of Narrow sloping-glot, antetheca (17), rear wall (19) and described two side walls (20) surround to form electric arc
Protect chamber.
2. mariages narrow clearance welding gun according to claim 1, which is characterized in that first weld assembly has the first rifle
(11a) and the first conductive nozzle (12a) are managed, first gun barrel (11a) and the first conductive nozzle (12a) connection are in flat cuboid
Shape structure, first welding wire (10a) run through the first gun barrel (11a) and the first conductive nozzle (12a)；The second weld assembly tool
There are the second gun barrel (11b) and the second conductive nozzle (12b), second gun barrel (11b) and the second conductive nozzle (12b) connection are in flat
Cuboid structure；Second welding wire (10b) runs through the second gun barrel (11b) and the second conductive nozzle (12b).
3. mariages narrow clearance welding gun according to claim 2, which is characterized in that first weld assembly and the second welding
Component is arranged along the direction front-back staggered of welding.
4. mariages narrow clearance welding gun according to claim 3, which is characterized in that first gun barrel (11a) setting and the
Parallel the first through hole (13a) of one welding wire (10a), second gun barrel (11b) are arranged parallel with the second welding wire (10b) the
Two through holes (13b)；First welding wire (10a) and the second welding wire (10b) are respectively positioned on the first through hole (13a) and the second perforation
Between hole (13b).
5. narrow clearance welding gun according to claim 1, which is characterized in that the antetheca (17) and rear wall (19) all have a left side
Side retaining wall and right side retaining wall, between the left side retaining wall and right side retaining wall be arranged elastic component (23), the elastic component (23) to
Apply the power for being directed toward two side walls (20) to left side retaining wall and right side retaining wall.
6. narrow clearance welding gun according to claim 5, which is characterized in that the left side retaining wall and the right side retaining wall are in
Cuboid, left side retaining wall and the opposite side of right side retaining wall symmetrically offer card slot, the both ends point of the elastic component (23)
It is not resisted against in the corresponding card slot.
7. narrow clearance welding gun according to claim 5, which is characterized in that the left side retaining wall and the right side dado structure
It is identical and be in cylindrical.
8. narrow clearance welding gun according to claim 7, which is characterized in that the upper and lower ends of left side retaining wall and right side retaining wall are equal
It is provided with bearing block (24), the both ends of the elastic component (23) are born against on two adjacent bearing blocks (24) of left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337955.0A CN109352146A (en) | 2018-11-12 | 2018-11-12 | A kind of mariages narrow clearance welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337955.0A CN109352146A (en) | 2018-11-12 | 2018-11-12 | A kind of mariages narrow clearance welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109352146A true CN109352146A (en) | 2019-02-19 |
Family
ID=65344906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811337955.0A Pending CN109352146A (en) | 2018-11-12 | 2018-11-12 | A kind of mariages narrow clearance welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109352146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091038A (en) * | 2019-04-28 | 2019-08-06 | 江苏航运职业技术学院 | A kind of multipurpose mariages narrow clearance welding gun |
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|---|---|---|---|---|
| CA1055120A (en) * | 1976-04-29 | 1979-05-22 | Canadian General Electric Company Limited | Welding gun for deep narrow gaps |
| CN201672213U (en) * | 2010-03-15 | 2010-12-15 | 浙江机电职业技术学院 | Travelling device in pipe |
| CN202028862U (en) * | 2011-03-31 | 2011-11-09 | 浙江银轮机械股份有限公司 | Simple circular seam profiling welding device |
| CN104289795A (en) * | 2014-09-22 | 2015-01-21 | 武汉纳瑞格智能设备有限公司 | MAG/MIG automatic welding device and method |
| CN104625347A (en) * | 2015-01-29 | 2015-05-20 | 阜新华通管道有限公司 | Throttling protection device for bottom argon arc welding in power station pipe fabrication |
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN205309524U (en) * | 2016-01-29 | 2016-06-15 | 温州职业技术学院 | Half automatic weld equipment of dysmorphism welding seam |
| CN106015831A (en) * | 2016-06-16 | 2016-10-12 | 合肥工业大学 | Wheel type pipeline robot with steering of driving wheels being controllable |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
| CN209380055U (en) * | 2018-11-12 | 2019-09-13 | 南通航运职业技术学院 | A kind of mariages narrow clearance welding gun |
-
2018
- 2018-11-12 CN CN201811337955.0A patent/CN109352146A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1055120A (en) * | 1976-04-29 | 1979-05-22 | Canadian General Electric Company Limited | Welding gun for deep narrow gaps |
| CN201672213U (en) * | 2010-03-15 | 2010-12-15 | 浙江机电职业技术学院 | Travelling device in pipe |
| CN202028862U (en) * | 2011-03-31 | 2011-11-09 | 浙江银轮机械股份有限公司 | Simple circular seam profiling welding device |
| CN104289795A (en) * | 2014-09-22 | 2015-01-21 | 武汉纳瑞格智能设备有限公司 | MAG/MIG automatic welding device and method |
| CN104625347A (en) * | 2015-01-29 | 2015-05-20 | 阜新华通管道有限公司 | Throttling protection device for bottom argon arc welding in power station pipe fabrication |
| CN104923895A (en) * | 2015-06-26 | 2015-09-23 | 武汉纳瑞格智能设备有限公司 | Semi-automatic ultra-narrow gap MAG/MIG welding welding gun |
| CN205309524U (en) * | 2016-01-29 | 2016-06-15 | 温州职业技术学院 | Half automatic weld equipment of dysmorphism welding seam |
| CN106015831A (en) * | 2016-06-16 | 2016-10-12 | 合肥工业大学 | Wheel type pipeline robot with steering of driving wheels being controllable |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091038A (en) * | 2019-04-28 | 2019-08-06 | 江苏航运职业技术学院 | A kind of multipurpose mariages narrow clearance welding gun |
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