CN105215517B - Double welding gun device is protected for the matched non-melt pole argon gas of metal pipe material molding machine - Google Patents
Double welding gun device is protected for the matched non-melt pole argon gas of metal pipe material molding machine Download PDFInfo
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- CN105215517B CN105215517B CN201510653863.3A CN201510653863A CN105215517B CN 105215517 B CN105215517 B CN 105215517B CN 201510653863 A CN201510653863 A CN 201510653863A CN 105215517 B CN105215517 B CN 105215517B
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- welding
- welding gun
- rifle
- electric arc
- molten bath
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Classifications
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- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
Abstract
It is that the matched non-melt pole argon gas of metal pipe material molding machine protects double welding gun device the present invention relates to one kind.When high-speed welding thermal coefficient is high and the metal forming pipe of wall thickness, single welding gun is limited by speed and welding current can not form molten bath deep enough electric arc is caused to be unable to the melt-through weld back side, if only solving the problems, such as this by promoting welding current will receive equipment limit and form a large amount of undercuts, pit and overlap class defect in face of weld.The present apparatus includes double welding gun, welding gun holder, imports sizing idler wheel, weld seam squeezing roller, export sizing idler wheel, welding gun adjuster, welding gun and rolling wheel support frame.The first welding gun is used to apply electric arc appropriate deep and narrow molten bath of formation on molding tube workpiece as pre- heat source, when molten bath heat is not yet exported by Metal Substrate heat transfer, the second welding gun continues to electric arc as welding rifle and forms deep and wide molten bath on molding tube workpiece, the penetration and stability of welding are which thereby enhanced, welding efficiency is improved.
Description
Technical field:
The invention belongs to metal pipe material preparation and welding fields, in particular to a kind of is that precision metallic tube-forming machine assembles
The non-melt pole argon gas of set protects double welding gun device.
Background technique:
Metal pipe material is widely used to the various aspects of human lives and industrial circle.Metal pipe material manufacturing process is main
Include: hydro-forming tubulation, the continuously shaped tubulation of mold, pipe mill tubulation, tandem rolling tube machine tubulation, period pipe mill tubulation, lead
Disk pipe mill tubulation, extrusion forming tubulation, coil pipe drawing and forming tubulation, tuber molding welding tube-making etc..It is with sheet metal strip
The accurate pipe machine moulding process that raw material prepare tubing requires to use the welding method of high-quality, that is to say, that, it is desirable that welding is steady
It is qualitative good, it can prevent from aoxidizing and absorbing pernicious gas, and weld densification, weld properties are good.
Non-melting electrode argon arc welding is that electric arc burns between electrode and workpiece, and flow through around welding arc not with metal
The argon gas of chemically reactive forms protection gas hood, make electrode tip, electric arc and molten bath and the metal that has been under high temperature not with
Air contact.Welding arc is high current, the continuous discharge phenomenon of low-voltage, converts electrical energy into fusing workpiece institute by electric discharge
The heat needed.In addition, electric arc can also shine, generate noise and generate ion bombardment effects, and this ion bombardment to workpiece
Act on the oxidation film that can remove surface of workpiece.These characteristics of non-melting electrode argon arc welding are less than other welding methods
's.
Summary of the invention:
The present invention welds in the case where current limited for single argon arc welding machine when preparing metal pipe material at a high speed
Deficiency, the deficiency of such as thick copper material tubulation of high especially for thermal coefficient and wall thickness metal tubulation provides a kind of structure
Simply, easy to operate corollary apparatus realizes and continuously prepares metal pipe material under high speed, high quality, high-precision.
It is that the matched non-melt pole argon gas of precision metallic tube-forming machine protects double welding gun device the present invention relates to one kind.It should
Device include preheating lance 1, welding rifle 2, preheating lance holder 3, welding rifle holder 4, import sizing idler wheel 5, welding squeezing roller 6,
Export sizing idler wheel 7, welding gun transverse adjustment 8, welding gun longitudinal adjuster 9, welding gun radial actuator 10, radial stroke cavity
11, welding gun support frame 12, rolling wheel support frame 13, pedestal 14.The preheating lance 1 is fixed on preheating lance holder 3, preheating lance holder
3 for adjusting preheating lance relative to the angle of metal forming pipe and being formed by electric arc range.The welding rifle 2 is fixed on welding
On rifle holder 4, welding rifle holder 4 is fixed on welding gun support by transverse adjustment 8, longitudinal adjuster 9 and radial actuator 10
On frame 12, welding gun support frame 12 is fixed on precision metallic tube-forming machine pedestal 14.The welding rifle holder 4 is applied for adjusting
Welding gun relative to metal forming pipe angle and be formed by electric arc range.The welding rifle transverse adjustment 8 is for adjusting water
The lateral displacement vertical with direction of travel (radial direction) in plane, welding rifle longitudinal adjuster 9 are used to adjust on perpendicular and row
The length travel vertical into direction (radial direction), welding rifle radial actuator 10 are used to adjust the displacement along direction of travel (radial direction),
Radial displacement refers to welding gun holder and its relative position of the connected body in radial stroke cavity is supported to change.
Double welding gun device is protected to be characterized in that premenstrual for the matched non-melt pole argon gas of precision metallic tube-forming machine group
Metal forming tube workpiece 20 after holding the positioning of centering partition enters welding region via sizing idler wheel 5 is imported, and adjusting preheating lance 1 makes
Its angle is appropriate and makes the intermediate region (being commonly called as inner core region or ion plasma) of electric arc that metal forming pipe be completely covered along wall thickness side
To welding surface, adjust that welding rifle 2 keeps its angle appropriate and the welding surface is completely covered in electric arc intermediate region.This is because preheating
It is in approximately conical shape with welding arc, the vertex of a cone is the interface of electrode tip and electric arc, and cone bottom is the junction of electric arc and molten bath,
Electric arc inner core region or ion plasma conduct most of electric current, temperature with higher.Metal forming tube workpiece 20 is via preheating lance 1
It is formed deeply and narrow molten bath on workpiece after applying electric arc appropriate, again via welding rifle 2 when molten bath, heat is not yet exported
It continues to electric arc and forms deep and wide melt direct spun FDY on molding tube workpiece 20, at this point, metal forming tube workpiece 20 is via weldering
Connecing the extruding of squeezing roller 6 makes bilateral molten bath docking coincide, and with going deep into for metal forming pipe heat transfer, liquid state molten pool is begun to cool
Solidification.Metal forming tube workpiece continue on through by after export sizing idler wheel 7 become welding fabrication pipe 21 enter precision metallic tubing at
The rear end process of type unit.
Non-melt pole argon gas protection double welding gun device of the invention works as height compared with the single welding gun of non-melt pole argon gas protection
When speed welds thermal coefficient high thick-walled metal formed pipe, single welding gun is limited by speed and welding current and can not be formed enough
Deep molten bath causes electric arc to be unable to the melt-through weld back side, if by being promoted if welding current solves these problems by equipment limit, no
Scaling loss tungsten electrode can only occur, cause weld seam tungsten inclusion, and a large amount of weld seam pit, undercut and overlap etc. can be caused in face of weld
Defect problem, and face of weld is irregular, forming is poor, seriously affects welding quality.Double welding gun device of the invention can be real
The defects of now promoting speed of welding, reducing welding current, avoid the formation of pit, undercut and overlap, realizes good appearance of weld,
Welding stability and penetration are improved, welding efficiency is improved.
Detailed description of the invention:
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the structural schematic diagram of the specific embodiment of the invention.
Fig. 2 is left view schematic diagram shown in FIG. 1.
Specific embodiment:
Above scheme is described further with reference to the accompanying drawings and embodiments.
Embodiment: of the present invention to protect double welding gun dress for the matched non-melt pole argon gas of precision metallic tube-forming machine
Set, mainly by preheating lance 1, welding rifle 2, preheating lance holder 3, welding rifle holder 4, import sizing idler wheel 5, welding squeezing roller 6,
Export sizing idler wheel 7, welding gun transverse adjustment 8, welding gun longitudinal adjuster 9, welding gun radial actuator 10, radial stroke cavity
11, welding gun support frame 12, rolling wheel support frame 13, pedestal 14 form.Wherein, preheating lance 1 is fixed on preheating lance holder 3, preheating
Rifle holder 3 is fixed on precision metallic tube-forming machine pedestal 14.
Preheating lance holder 3 described in the present embodiment is used to adjust preheating lance relative to the angle of metal forming pipe and be formed by
Electric arc range.
Welding rifle 2 described in the present embodiment is fixed on welding rifle holder 4, and welding rifle holder 4 passes through transverse adjustment 8, indulges
Be fixed on welding gun support frame 12 to adjuster 9 and radial actuator 10, welding gun support frame 12 be fixed on precision metallic tubing at
On type machine pedestal 14.
The present embodiment welding rifle holder 4 is used to adjust the angle and arc length of welding rifle, and welding rifle transverse adjustment 8 is for adjusting
The lateral displacement vertical with direction of travel (radial direction) in water-saving plane, welding rifle longitudinal adjuster 9 is for adjusting perpendicular
The length travel vertical with direction of travel (radial direction), welding rifle radial actuator 10 is for adjusting along the position of direction of travel (radial direction)
It moves, radial displacement refers to welding rifle holder 4 and its relative position of the connected body in radial stroke cavity 11 is supported to change.
Welding rifle holder 4 described in the present embodiment is used to adjust welding rifle relative to the angle of metal forming pipe and be formed by
Electric arc range.
The present apparatus is characterized in that the metal forming tube workpiece 20 after centering partition in front end positions is rolled via sizing is imported
Wheel 5 enters welding region, and adjusting preheating lance 1 keeps its angle appropriate and the intermediate region of electric arc is made (to be commonly called as inner core region or plasma
Area) metal forming pipe is completely covered along the welding surface in wall thickness direction, adjusting welding rifle 2 keeps its angle appropriate and electric arc intermediate region
The welding surface is completely covered.This is because preheating and welding arc are in approximately conical shape, the vertex of a cone is the friendship of electrode tip and electric arc
Junction, cone bottom are the junction of electric arc and molten bath, and electric arc inner core region or ion plasma conduct most of electric current, temperature with higher
Degree.Metal forming tube workpiece 20 forms deep and narrow molten bath after applying electric arc appropriate via preheating lance 1 on workpiece, works as molten bath
Electric arc deep and wide penetration of formation on molding tube workpiece 20 is continued to via welding rifle 2 again when heat is not yet exported to melt
Pond coincide, with metal forming at this point, metal forming tube workpiece 20 docks bilateral molten bath via the welding extruding of squeezing roller 6
Pipe heat transfer gos deep into, and liquid state molten pool begins to cool solidification.Metal forming tube workpiece is continued on through by becoming after export sizing idler wheel 7
Welding fabrication pipe 21 enters the rear end process of precision metallic tube forming unit.
Examples detailed above is only for illustrating technical concepts and features of the invention, and its object is to this technical principles known to allowing
Personage can fully understand the content of present invention and implement accordingly, the protection scope that the present invention cannot be limited in this way.It is of the present invention
And claim of the present invention can be used for many other purposes, therefore, the present invention is not limited to the field and use
Way will be suitable for other fields and purposes.Equivalent transformation, decoration or the modification that all Spirit Essences according to the present invention are made, are all answered
It is included within the scope of the present invention.
Claims (1)
1. a kind of non-melt pole argon matched with precision metallic tube-forming machine, being used to prepare high thermal conductivity coefficient thick-wall metal pipes
Gas shielded double welding gun device, it is characterised in that: the device includes preheating lance (1), welding rifle (2), preheating lance holder (3), welding
Rifle holder (4), import sizing idler wheel (5), welding squeezing roller (6), export sizing idler wheel (7), welding gun transverse adjustment (8),
Welding gun longitudinal adjuster (9), welding gun radial actuator (10), radial stroke cavity (11), welding gun support frame (12), roller supporting
Frame (13), pedestal (14) and centering partition, in which: preheating lance holder (3) is for installing preheating lance (1) and to adjust preheating lance opposite
In metal forming tube workpiece (20) angle and be formed by electric arc range, preheating lance holder is fixed on precision metallic tube forming
On machine pedestal (14)；Welding rifle holder (4) is for installing welding rifle (2) simultaneously three-dimensional regulation welding rifle and metal forming tube workpiece
(20) arc length of angle and formation；Welding rifle holder (4) passes through welding gun transverse adjustment (8), welding gun longitudinal adjuster
(9) be fixed on welding gun support frame (12) with welding gun radial actuator (10), welding gun support frame be fixed on precision metallic tubing at
On type machine pedestal (14)；Welding gun transverse adjustment (8) is used to adjust welding rifle (2) cross vertical with direction of travel in the horizontal plane
To displacement；Welding gun longitudinal adjuster (9) is for adjusting welding rifle (2) longitudinal position vertical with direction of travel on perpendicular
It moves；Welding gun radial actuator (10) is for adjusting welding rifle (2) along the radial displacement of direction of travel；When welding, the metal at
Type tube workpiece (20) is positioned through front end centering partition, is entered welding region by by importing sizing idler wheel (5), is adjusted preheating lance
(1) make its angle appropriate and make the intermediate region of electric arc that metal forming tube workpiece (20) be completely covered along the welding in wall thickness direction
Face, adjusting welding rifle (2) makes its angle suitably and the welding surface, metal forming tube workpiece (20) is completely covered in electric arc intermediate region
After applying electric arc via preheating lance (1), deep and narrow molten bath is formed on metal forming tube workpiece (20), when molten bath heat not yet
By welding rifle (2) continuing to electric arc when being exported completely, that deep and wide penetration is formed on metal forming tube workpiece (20) is molten
Pond；Under the squeezing action of welding squeezing roller (6), weld bond both sides molten bath coincide the metal forming tube workpiece (20) of molten bath penetration
It docks and cooled and solidified, formation weld seam protects double welding gun by exporting the non-melt pole argon gas after export sizing idler wheel (7) sizing
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653863.3A CN105215517B (en) | 2015-10-08 | 2015-10-08 | Double welding gun device is protected for the matched non-melt pole argon gas of metal pipe material molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510653863.3A CN105215517B (en) | 2015-10-08 | 2015-10-08 | Double welding gun device is protected for the matched non-melt pole argon gas of metal pipe material molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105215517A CN105215517A (en) | 2016-01-06 |
| CN105215517B true CN105215517B (en) | 2018-12-04 |
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| CN201510653863.3A Active CN105215517B (en) | 2015-10-08 | 2015-10-08 | Double welding gun device is protected for the matched non-melt pole argon gas of metal pipe material molding machine |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458475B (en) * | 2016-01-14 | 2017-11-17 | 内蒙古君诚管道科技股份有限公司 | A kind of twin wire automatic welding hidden arc welding device and its localization method and automatic seam tracking method |
| CN106735994A (en) * | 2017-03-09 | 2017-05-31 | 南宁市安和机械设备有限公司 | Pipe fitting squeezing welding device |
| CN109759732A (en) * | 2019-02-28 | 2019-05-17 | 上海宇洋特种金属材料有限公司 | A kind of S32205 two phase stainless steel welding process |
| CN114101873A (en) * | 2021-12-03 | 2022-03-01 | 中车长江运输设备集团有限公司 | Device and method for regulating and controlling welding stress and deformation of railway wagon component |
| CN116475570B (en) * | 2023-05-09 | 2023-11-24 | 山东森峰激光装备有限公司 | Laser welding device for pipeline processing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6054667A (en) * | 1997-07-25 | 2000-04-25 | La Soudure Autogene Francaise | Method of manufacturing metal tubes |
| CN1613596A (en) * | 2004-11-25 | 2005-05-11 | 上海交通大学 | Double-tungsten argon arc preheating re-melting welder |
| CN201685010U (en) * | 2010-05-31 | 2010-12-29 | 浙江摩多巴克斯汽配有限公司 | Seam welding device for welded steel pipe |
| CN102151959A (en) * | 2011-03-09 | 2011-08-17 | 山东大学 | High-speed welding production process and device for thin-walled steel tubes |
| CN202129540U (en) * | 2011-07-19 | 2012-02-01 | 陈丽如 | Argon arc welding device |
| CN102873434A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | High-speed welding device for double-TIG (tungsten inert gas) welding gun thin-wall steel pipe |
| CN202726273U (en) * | 2012-08-07 | 2013-02-13 | 湖南湘投金天新材料有限公司 | Welding gun adjusting device for welding pipe production line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557376A (en) * | 1978-10-21 | 1980-04-28 | Teisan Kk | Electric welding method |
| CN203045122U (en) * | 2012-12-06 | 2013-07-10 | 汕头市合创贸易有限公司 | Argon arc welding device for welding metal welded tube |
-
2015
- 2015-10-08 CN CN201510653863.3A patent/CN105215517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6054667A (en) * | 1997-07-25 | 2000-04-25 | La Soudure Autogene Francaise | Method of manufacturing metal tubes |
| CN1613596A (en) * | 2004-11-25 | 2005-05-11 | 上海交通大学 | Double-tungsten argon arc preheating re-melting welder |
| CN201685010U (en) * | 2010-05-31 | 2010-12-29 | 浙江摩多巴克斯汽配有限公司 | Seam welding device for welded steel pipe |
| CN102151959A (en) * | 2011-03-09 | 2011-08-17 | 山东大学 | High-speed welding production process and device for thin-walled steel tubes |
| CN202129540U (en) * | 2011-07-19 | 2012-02-01 | 陈丽如 | Argon arc welding device |
| CN202726273U (en) * | 2012-08-07 | 2013-02-13 | 湖南湘投金天新材料有限公司 | Welding gun adjusting device for welding pipe production line |
| CN102873434A (en) * | 2012-10-18 | 2013-01-16 | 山东大学 | High-speed welding device for double-TIG (tungsten inert gas) welding gun thin-wall steel pipe |
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| CN105215517A (en) | 2016-01-06 |
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Denomination of invention: Non melting electrode argon protection double welding gun device for metal pipe forming machine Effective date of registration: 20211116 Granted publication date: 20181204 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: APPLIED COMPOSITE MATERIAL Co.,Ltd. Registration number: Y2021330002269 |
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Date of cancellation: 20221012 Granted publication date: 20181204 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: APPLIED COMPOSITE MATERIAL Co.,Ltd. Registration number: Y2021330002269 |
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Denomination of invention: Non melting electrode argon protection double welding gun device for metal pipe forming machine Effective date of registration: 20221127 Granted publication date: 20181204 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: APPLIED COMPOSITE MATERIAL Co.,Ltd. Registration number: Y2022330003271 |