CN102756226B - Longitudinal seam welding gas protective device for heavy caliber bent head - Google Patents
Longitudinal seam welding gas protective device for heavy caliber bent head Download PDFInfo
- Publication number
- CN102756226B CN102756226B CN201210250865.4A CN201210250865A CN102756226B CN 102756226 B CN102756226 B CN 102756226B CN 201210250865 A CN201210250865 A CN 201210250865A CN 102756226 B CN102756226 B CN 102756226B
- Authority
- CN
- China
- Prior art keywords
- bracket
- gas
- air supply
- unsteady
- tank
- 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.)
- Active
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a longitudinal seam welding gas protective device for a heavy caliber bent head. The device comprises a gas shield, a supporting tube frame for the gas shield and a support for the gas shield, wherein the gas shield comprises a gas supply tank, a replaceable anastomosis tank ring and a floating bracket; the gas supply tank is movably embedded in the floating bracket; a plurality of elastic strutting pieces are arranged between the gas tank and the bottom of the floating bracket; an upper tank ring of the replaceable anastomosis tank ring is an arc-shaped edge matched with the inner wall of the bent head; each tank edge is inserted in a gap between the gas supply tank and the floating bracket; and the gas supply tank is connected with an inlet pipe. The designed floating bracket can ensure that the periphery of the upper end of the replaceable anastomosis tank is always clung to the inner wall of the heavy caliber bent head during welding, so as to further prevent the leakage of the inert protective gas in the welding displacement process; meanwhile, the designed replaceable anastomosis tank ring ensures that the device can be conveniently and flexibly applicable to various welding prevention of bent heads with different pipe diameters; and the whole device is simple and reasonable in structure, and stable, flexible and reliable to use.
Description
Technical field
the invention belongs to welding technology field, particularly relate to inert gas protection device in a kind of pipe in elbow welding.
Background technology
in metal solder, particularly steel alloy welding, in order to prevent air intrusion molten drop and molten bath, the oxidation that as far as possible alleviates weld metal, one of measure of conventionally taking, adopts gas shield device exactly, discharges inert gas by welding region and air insulated.Yet elbow welding equipment does not in the market have suitable gas shield device, after welding, easily there is oxidation and defects i.e.cracks, affect welding quality.
summary of the invention
object of the present invention, be to provide a kind of rational in infrastructure, use reliable and stable, applicability is strong large elbow longitudinal joint weldering gas shield device.
technical scheme of the present invention is: a kind of large caliber bend longitudinal joint weldering gas shield device; comprise gas shroud and support pipe support and bearing; described gas shroud is comprised of air supply trough, interchangeable kiss access slot circle, the bracket that floats; described air supply trough pivot bush unit is in the bracket that floats; between air supply trough and the bottom of unsteady bracket, be provided with some elastic supporting member for supporting optical member; described interchangeable kiss access slot circle is the arc-shaped side of groove circle limit for matching with elbow interior wall on it; its groove girth sheets is just in time inserted in the gap between air supply trough and unsteady bracket, and described air supply trough is connected with air inlet pipe.
as preferably, the elastic supporting member for supporting optical member arranging between described air supply trough and the bottom of unsteady bracket is by being fixed on the guide pillar that is set with spring on the bracket inner bottom plating that floats and forming with the sleeve that matched its upper end of described guide pillar is fixed on the bottom surface of air supply trough base plate.
as preferably, the gas distribution pipe being connected with air inlet pipe is installed in described air supply trough, described gas distribution pipe left and right sides and/or downside are evenly equipped with radially qi-emitting hole.
as preferably, described support pipe support top is provided with connecting plate, and the fixed axis on described unsteady bracket base is through the connecting hole of connecting plate, and with nut locking.
as preferably, on the fixed axis shaft part between the base plate of described unsteady bracket and connecting plate and between connecting plate and described nut, be separately installed with thrust ball bearing.
as preferably, on the header board of described unsteady bracket, have a vertical upper breach U-lag hole of passing through for air inlet pipe level, on the header board of interchangeable kiss access slot circle, have a vertical lower breach U-lag hole of passing through for air inlet pipe level
the invention has the beneficial effects as follows: in device, designed unsteady bracket can guarantee that the upper end periphery of interchangeable kiss access slot circle in welding process is close to bassoon elbow interior wall all the time, can prevent preferably the leakage of inert protective gas in weld displacement process; The design of the thrust bearing bracket that makes to float is relatively stable with weld line position, unsteady bracket sideslip in the time of effectively preventing weld displacement; Meanwhile, owing to having designed interchangeable kiss access slot circle, thereby make this device can be applicable to flexibly and easily the welding protection of various different tube diameters elbows; Single unit system is simple for structure rationally, and use is stable, flexible, reliable, has effectively improved the welding quality of elbow.
Accompanying drawing explanation
fig. 1 is the general structure schematic diagram of this device.
fig. 2 is the side view of Fig. 1.
fig. 3 is gas shroud and the structural representation that supports pipe support.
fig. 4 is the side view of Fig. 3.
fig. 5 is the top view of Fig. 3.
fig. 6 is the perspective view of the bracket that floats.
fig. 7 is the perspective view of interchangeable kiss access slot circle.
fig. 8 is the perspective view of air supply trough.
The specific embodiment
below in conjunction with accompanying drawing, with embodiment, the invention will be further described.
a large caliber bend longitudinal joint weldering gas shield device, comprises gas shroud 6 and supports pipe support 3 and bearing 1, described gas shroud 6 is comprised of air supply trough 11, interchangeable kiss access slot circle 9, the bracket 8 that floats.The air supply trough 11 of the present embodiment is cuboid groove with unsteady bracket 8, and described air supply trough 11 is sleeved in the bracket 8 that floats, and four limits of the base plate 13 of air supply trough 11 extend outward and prolong chimb press close to float respectively four side inwalls of bracket 8; Uniformly on the base plate 17 floating in bracket 8 be fixed with four guide pillars 16, on each guide pillar 16, be respectively installed with the spring 15 higher than guide pillar 16, and on the bottom surface of the base plate 13 of air supply trough 11, be fixed with four sleeves 14 with spring 15 corresponding sockets on four guide pillars 16, thereby form the elastic supporting member for supporting optical member floating between bracket 8 and air supply trough 11.Described interchangeable kiss access slot circle 9 is to enclose by header board 25, rear plate 27, left and right plate 26 the bottomless rectangular groove circle that structure forms, the arc-shaped side of groove circle limit for matching with bassoon elbow interior wall on it, its four side channels girth sheets is just in time inserted in the gap between air supply trough 11 and unsteady bracket 8.On the header board 10 of described air supply trough 11, be connected with air inlet pipe 7, the U-shaped gas distribution pipe 12 being connected with air inlet pipe 7 is installed in air supply trough 11, the welding slag not fallen by top for the qi-emitting hole making on gas distribution pipe 12 stops up, make gas distribution more even, spy is designed to the qi-emitting hole of offering on gas distribution pipe 12 to the left and right and/or downward radial hole simultaneously.Described support pipe support 3 tops are provided with connecting plate 21, and the fixed axis 20 on described unsteady bracket 8 base plates 17 passes the connecting hole of connecting plate 21, and with nut 19 lockings.For the bracket 8 that makes to float can be with the skew of weld seam in welding process flexible rotating, the present embodiment is separately installed with thrust ball bearing 18 on fixed axis 20 shaft parts between described unsteady bracket 8 base plates 17 and connecting plate 21 and between connecting plate 21 and described nut 19.In addition, for gas shroud 6 can freely be fluctuated smoothly when working, the unlikely air inlet pipe 7 that is subject to stops, on the header board 22 of described unsteady bracket 8, have a vertical upper breach U-lag hole 23 of passing through for air inlet pipe 7 levels, on the header board 25 of interchangeable kiss access slot circle 9, have a vertical lower breach U-lag hole 24 of passing through for air inlet pipe 7 levels.
this device, before welding, according to the bending radius of large caliber bend and bend pipe internal diameter, first chooses suitable interchangeable kiss access slot circle 9, and it is directly inserted between air supply trough 11 and unsteady bracket 8.Adjust the height that supports pipe support 3, and rotational support pipe support 3, rotate gas shroud 6 simultaneously, air supply trough 11 center lines are aimed in the middle of the gap of large pipe bend 5 to be welded, then with bolt 2, support pipe support 3 is fixed on bearing 1.
during welding, large caliber bend 5 is with rotating disk 4 rotations of positioner, and welding gun and gas shroud 6 are motionless.Interchangeable kiss access slot circle 9, under the effect of the bracket 8 that floats, makes the upper end periphery of interchangeable kiss access slot circle 9 be close to all the time bend weld welding region tube wall around, thereby makes the weld metal of welding region obtain the adequately protecting of indifferent gas of air supply trough 11 interior releases.
Claims (6)
1. a large caliber bend longitudinal joint welds gas shield device, comprise gas shroud (6) and support pipe support (3) and bearing (1), it is characterized in that described gas shroud (6) is by air supply trough (11), interchangeable kiss access slot circle (9), the bracket (8) that floats forms, described air supply trough (11) pivot bush unit is in unsteady bracket (8), between the bottom of air supply trough (11) and unsteady bracket (8), be provided with some elastic supporting member for supporting optical member, described interchangeable kiss access slot circle (9) is the arc-shaped side of groove circle limit for matching with elbow interior wall on it, its groove girth sheets is just in time inserted in the gap between air supply trough (11) and unsteady bracket (8), described air supply trough (11) is connected with air inlet pipe (7).
2. by large caliber bend longitudinal joint weldering gas shield device claimed in claim 1; it is characterized in that the elastic supporting member for supporting optical member arranging between described air supply trough (11) and the bottom of unsteady bracket (8), is by being fixed on the guide pillar that is set with spring (15) (16) on unsteady bracket (8) inner bottom plating (17) and forming with the sleeve (14) that matched its upper end of described guide pillar (16) is fixed on the bottom surface of air supply trough base plate (13).
3. by large caliber bend longitudinal joint weldering gas shield device claimed in claim 1; it is characterized in that, in described air supply trough (11), the gas distribution pipe (12) being connected with air inlet pipe (7) is installed, described gas distribution pipe (12) left and right sides and/or downside are evenly equipped with radially qi-emitting hole.
4. by large caliber bend longitudinal joint weldering gas shield device claimed in claim 1; it is characterized in that described support pipe support (3) top is provided with connecting plate (21); fixed axis (20) on described unsteady bracket (8) base plate (17) passes the connecting hole of connecting plate (21), and locks with nut (19).
5. by large caliber bend longitudinal joint claimed in claim 4 weldering gas shield device, it is characterized in that being positioned between the base plate (17) of described unsteady bracket (8) and connecting plate (21) and be separately installed with thrust ball bearing (18) on fixed axis (20) shaft part between connecting plate (21) and described nut (19).
6. by large caliber bend longitudinal joint weldering gas shield device claimed in claim 1; it is characterized in that having a vertical upper breach U-lag hole (23) of passing through for air inlet pipe (7) level on the header board (22) of described unsteady bracket (8), on the header board (25) of interchangeable kiss access slot circle (9), have a vertical lower breach U-lag hole (24) of passing through for air inlet pipe (7) level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250865.4A CN102756226B (en) | 2012-07-19 | 2012-07-19 | Longitudinal seam welding gas protective device for heavy caliber bent head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210250865.4A CN102756226B (en) | 2012-07-19 | 2012-07-19 | Longitudinal seam welding gas protective device for heavy caliber bent head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102756226A CN102756226A (en) | 2012-10-31 |
| CN102756226B true CN102756226B (en) | 2014-08-13 |
Family
ID=47051000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210250865.4A Active CN102756226B (en) | 2012-07-19 | 2012-07-19 | Longitudinal seam welding gas protective device for heavy caliber bent head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102756226B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107150193A (en) * | 2017-07-16 | 2017-09-12 | 毛强平 | A kind of industrial robot and its autocontrol method for carrying out pipeline welding operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933079A (en) * | 1982-08-16 | 1984-02-22 | Nikki Koji Kk | Back seal device for piping welding |
| JPH0890228A (en) * | 1994-09-16 | 1996-04-09 | Japan Steel & Tube Constr Co Ltd | Internal clamp device |
| JP2007190595A (en) * | 2006-01-20 | 2007-08-02 | Nisshin Steel Co Ltd | Inner-surface shield tool for manufacturing welded metal pipe |
| CN201361768Y (en) * | 2009-01-20 | 2009-12-16 | 太原市阳光园不锈钢制品有限公司 | Automatic ring welding reverse-side gas protection device of heavy-caliber stainless steel welding pipe |
| CN201776578U (en) * | 2010-09-07 | 2011-03-30 | 浙江久立特材科技股份有限公司 | Inert gas protective dragging cover in tube for direct seam welding of major diameter tube |
| CN202701574U (en) * | 2012-07-19 | 2013-01-30 | 湖州久立管件有限公司 | Large-caliber elbow longitudinal joint gas protecting device |
-
2012
- 2012-07-19 CN CN201210250865.4A patent/CN102756226B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5933079A (en) * | 1982-08-16 | 1984-02-22 | Nikki Koji Kk | Back seal device for piping welding |
| JPH0890228A (en) * | 1994-09-16 | 1996-04-09 | Japan Steel & Tube Constr Co Ltd | Internal clamp device |
| JP2007190595A (en) * | 2006-01-20 | 2007-08-02 | Nisshin Steel Co Ltd | Inner-surface shield tool for manufacturing welded metal pipe |
| CN201361768Y (en) * | 2009-01-20 | 2009-12-16 | 太原市阳光园不锈钢制品有限公司 | Automatic ring welding reverse-side gas protection device of heavy-caliber stainless steel welding pipe |
| CN201776578U (en) * | 2010-09-07 | 2011-03-30 | 浙江久立特材科技股份有限公司 | Inert gas protective dragging cover in tube for direct seam welding of major diameter tube |
| CN202701574U (en) * | 2012-07-19 | 2013-01-30 | 湖州久立管件有限公司 | Large-caliber elbow longitudinal joint gas protecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102756226A (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201157955Y (en) | Internal-support round fixture for preventing welding deformation | |
| CN201361768Y (en) | Automatic ring welding reverse-side gas protection device of heavy-caliber stainless steel welding pipe | |
| CN104708263A (en) | Clamp of welding platform for welding between pipelines | |
| CN103600190B (en) | Dust remover blowing is given vent to anger bend pipe positioning tool | |
| CN202701574U (en) | Large-caliber elbow longitudinal joint gas protecting device | |
| CN102756226B (en) | Longitudinal seam welding gas protective device for heavy caliber bent head | |
| CN204075619U (en) | Steel tube flange welding flock | |
| CN207447752U (en) | Large scale pipe end axis welder | |
| CN203578992U (en) | Automatic submerged arc welding flange tool | |
| CN204075565U (en) | Dust remover blowing is given vent to anger bend pipe positioning tool | |
| CN204818376U (en) | Continuous casting roller build -up welding machine | |
| CN204818385U (en) | A frock that is used for shield to construct downhand welding of casing body | |
| CN204524589U (en) | The pre-postwelding of a kind of steel pipe is except splinter device | |
| JP6493036B2 (en) | Molten steel wire feeding equipment | |
| CN201783768U (en) | Outside weld slag removing device | |
| CN208787784U (en) | A kind of travelling wave accelerating tube periphery water jacket welding tooling | |
| CN204504470U (en) | A kind of welder of water pump vane | |
| CN209823062U (en) | Grounding device of circular cylinder barrel welding machine | |
| CN207464585U (en) | Weld auxiliary mould in complex appearance pipeline 1G positions | |
| CN201711719U (en) | Welding tray | |
| CN103962684B (en) | A kind of hydraulic hard tube assembly automatic soldering method | |
| CN205600119U (en) | Device is laid to disc steel band | |
| CN207508588U (en) | Vertical overlaying system elbow heap mounted welder | |
| CN203003409U (en) | All-position pipe-pipe welder fixture | |
| CN208037699U (en) | Copper pipe disk spooling equipment and copper pipe disk winding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161214 Address after: 313000 Zhejiang Province, Huzhou city Nanxun District Shuanglin Town West Patentee after: Zhejiang JIULI Hi-Tech Metals Co., Ltd. Address before: Wuxing District of Zhejiang city of Huzhou Province in 313000 eight Zhen Jiuli Stainless Steel Industrial Park Huzhou Jiuli Pipe Co. Patentee before: Huzhou Jiuli Pipe Fitting Co., Ltd. |