CN107335906A - A kind of embedded dual power supply and double tungsten electrode welders and welding method - Google Patents
A kind of embedded dual power supply and double tungsten electrode welders and welding method Download PDFInfo
- Publication number
- CN107335906A CN107335906A CN201710626605.5A CN201710626605A CN107335906A CN 107335906 A CN107335906 A CN 107335906A CN 201710626605 A CN201710626605 A CN 201710626605A CN 107335906 A CN107335906 A CN 107335906A
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- tungsten electrode
- electrode
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- gun body
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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
- B23K9/24—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
- B23K9/16—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
- B23K9/1675—Arc welding or cutting making use of shielding gas and of a non-consumable electrode making use of several 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
- B23K9/24—Features related to electrodes
- B23K9/26—Accessories for electrodes, e.g. ignition tips
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to technical field of welding equipment, disclose a kind of embedded dual power supply and double tungsten electrode welders and welding method, the connected body being connected including upper cutting gun, with upper cutting gun, the lower gun body, the center tungsten electrode through upper cutting gun connected body lower gun body, the folder of the central electrode through upper cutting gun Clamping Center tungsten electrode, outer annular tungsten electrode, outer electrode electric conductor, conducting bolt and the insulating sleeve that are connected with connected body, the part contacted on the tungsten electrode of center with outer annular tungsten electrode is provided with high-temperature insulation material, and connected body and lower gun body are equipped with water inlet and delivery port.The center tungsten electrode and outer annular tungsten electrode of the technical program use two independent sources of welding current respectively, realize the diversification regulation of composite arc, the subnormal ambient built by outer annular tungsten electrode arc can be compressed to center tungsten electrode arc, high-efficient perforating welds, increase welding penetration, stomata generation is reduced, quality of weld joint is improved, realizes that slab workpiece disposably penetrates.
Description
Technical field
The invention belongs to technical field of welding equipment, more particularly to a kind of embedded dual power supply and double tungsten electrode welders and
Welding method.
Background technology
KeyholeTIG（K-TIG）Technology is one kind efficiently weldering that Australian CSIR O research institutions proposed in 1997
Method is connect, the characteristic dramatically increased using arc pressure under current state, it is possible to achieve the penetration of 3-12mm big slab
Welding, reach the effect of single-side welding double-side forming, welding process is stablized, without splashing, and weld seam texture is fine and smooth, is molded homogeneous U.S.
See, weldquality is higher.Because electric arc is still in unconfinement state, cause assembly precision requirement and weldering of this method for workpiece
Connect that parameter section is more harsh, there is preferably weldering generally for the larger titanium alloy etc materials of molten bath Phase liquid surface tension
Effect is connect, and it is unsatisfactory for the welding effect of metal other materials.
At present, domestic patent（Notification number is CN104708179）Disclose a kind of double TIG block forms welding methods, first
Individual TIG welding guns purpose preheats to workpiece, forms preliminary molten bath, is adjusted by vertical telescopic device the next on second TIG welding gun
Put, make tungsten electrode insert molten bath, increase welding penetration.But this method is more strict to two posture of welding torch, and gun body accessibility is poor,
Welding efficiency reduces, meanwhile, tungsten electrode meeting scaling loss under high current, therefore, slag inclusion can be formed in weld seam when tungsten electrode is inserted in molten bath,
Postwelding is second-rate；Domestic patent（Notification number is CN101817112A）Announce a kind of double TIG arc weldings of single supply one side series connection
Connect method, this method solve two TIG welding guns simultaneously the starting the arc the problem of.But power supply uses DC reverse connection, tungsten electrode as positive pole,
Tungsten electrode scaling loss is serious, slag inclusion can be formed in weld seam.Meanwhile single supply two TIG welding guns of control, arc process are complex.
The content of the invention
It is an object of the invention to provide a kind of embedded dual power supply and double tungsten electrode welders and welding method, the device
The conditions at the arc of optimization, the subnormal ambient centering electrocardio built by outside electric arc can be realized by targetedly torch design
Arc is compressed, and realizes highly efficient piercing welding.Meanwhile the design of twin arc independent current source, composite arc can be achieved
Diversification is adjusted, and to tackle different welding material and welding condition, is further lifted welding efficiency and energy conversion rate, is reduced weldering
This is connected into, improves welding quality.
A kind of embedded dual power supply and double tungsten electrode welders, including upper cutting gun, be connected with upper cutting gun connected body, with connection
The lower gun body of junctor connection, through the center tungsten electrode of upper cutting gun connected body lower gun body, through in the tungsten electrode of upper cutting gun Clamping Center
Heart electrode folder, the outer annular tungsten electrode being arranged on outside the center tungsten electrode of bottom in lower gun body, it is arranged on outside outer annular tungsten electrode
Outer electrode electric conductor, be arranged in external current conductor conducting bolt, be arranged on outer electrode electric conductor and lower gun body it
Between insulating sleeve, the part contacted with outer annular tungsten electrode on the tungsten electrode of center is provided with high-temperature insulation material, upper cutting gun, connection
Body, lower gun body, center tungsten electrode and outer annular tungsten electrode are coaxially connected, and connected body is provided with water inlet and delivery port, make upper cutting gun and
Connected body forms cooling water recirculation system, and lower gun body is provided with water inlet and delivery port, makes lower gun body, insulating sleeve and outer electrode
Electric conductor forms cooling water recirculation system.
Lower gun body is provided with air inlet, can make gap of the protection gas by center tungsten electrode and outer annular tungsten electrode.
Conducting bolt is hollow, and protection gas can be made to pass through the gap between outer annular tungsten electrode and outer electrode electric conductor.
Also include central clamp body, outer electrode folder, adapter sleeve, gas hood, guide pipe and locking nut, central clamp body connects
Central electrode folder and outer electrode electric conductor are connect, and Clamping Center electrode holder, conducting bolt are fixed on lower gun body by adapter sleeve
Above and with outer electrode and central clamp body phase connect, outer electrode folder and outer electrode electric conductor are jointly to annular tungsten electrode machinery folder
Hold, adapter sleeve coordinates with lower gun body screw thread ensures the firm connection of conducting bolt, and lower gun body is connected with gas hood by tightening nut, gas
Cover inwall connects guide pipe.
Between upper cutting gun and connected body, between outer electrode electric conductor and insulating sleeve, between insulating sleeve and lower gun body
It is equipped with O-ring seal.
Outer annular tungsten electrode diameter range is 5-12mm, and top cone angle scope is 30-60o, and boss diameter range is 3-
8mm, center tungsten electrode diameter range are 1-6mm, and cone angle scope is 30-60o.
Annular gap is formed between upper cutting gun 2 and connected body 3, cooling water enters from the water inlet of connected body 3, connected body 3
Delivery port flows out, and reaches cooling effect；Annular gap, the connection switching of the outside of lower gun body 4 are formed between lower gun body 4 and insulating sleeve 5
First 13, cooling water enters from lower gun body 4, by annular gap, between outer electrode electric conductor 12 and insulating sleeve 5
Gap, lower gun body is discharged finally by adapter 13, ensure effectively to cool down between gun body.
Center tungsten electrode 11 and outer annular tungsten electrode 9 connect two independence for Taiwan vertical position weldings by central electrode folder 1, conducting bolt 14 respectively
Power supply is connect, the subnormal ambient that the electric arc of outer annular tungsten electrode 9 is built can be compressed to the electric arc of center tungsten electrode 11, realize highly efficient
Piercing welding.
A kind of embedded dual power supply and double tungsten electrode welding methods, comprise the following steps：
（1）Open multiple cooling water recirculation systems, multiple protection gas bottles, multiple sources of welding current；
（2）Welding parameter is adjusted, is welded；
（3）After the completion of welding, multiple sources of welding current, multiple protection gas bottles, multiple cooling water recirculation systems are closed successively.
The center tungsten electrode and outer annular tungsten electrode of the technical program use two independent sources of welding current respectively, realize compound electric
The diversification regulation of arc, the subnormal ambient built by outer annular tungsten electrode arc can be compressed to center tungsten electrode arc, high
Piercing welding is imitated, increases welding penetration, stomata generation is reduced, improves quality of weld joint, realize that slab workpiece disposably penetrates.
Brief description of the drawings
Fig. 1：A kind of embedded dual power supply of the present invention and the central axial profile of double tungsten electrode welders；
Fig. 2：A kind of embedded dual power supply and double tungsten electrode welder welding process schematic diagrames of the present invention.
Wherein：1. central motor presss from both sides；2. upper cutting gun；3. connected body；4. lower gun body；5. insulating sleeve；6. guide pipe；7. lock
Tight nut；8. outer electrode；9. outer annular tungsten electrode；10. gas hood；11. center tungsten electrode；12. outer electrode electric conductor；13. turn
To head；14. conducting bolt；15. adapter sleeve；16. central clamp body.
Embodiment
1-2 makes further explanation to the present invention below in conjunction with the accompanying drawings.
The present embodiment source of welding current is using too WSME-630 types welding machine difficult to understand, dutycycle, pulse ratio, frequency-adjustable.Cooling water
Equipment choosing CW-5300 type cooling-water machines, cooling water minimum temperature is up to 1.5 DEG C.
As shown in figure 1, a kind of embedded dual power supply and double tungsten electrode welding methods and device include upper cutting gun 2 and lower gun body 4,
Formed and mechanically connected by connected body 3 between upper cutting gun 2 and lower gun body 4；Central electrode folder 1 and the collective effect of central clamp body 16
Clamping Center tungsten electrode 11；The bottom of central clamp body 16 connection outer electrode electric conductor 12, outer electrode folder 8 and outer electrode are conductive
Body 12 forms mechanical grip to outer annular tungsten electrode 9 jointly, on the electrodes conduct body 12 mounted externally of conducting bolt 14, forms electricity
Gas connects, and is coordinated by adapter sleeve 15 and the screw thread of lower gun body 4 and ensure the firm connection of conducting bolt 14；Center tungsten electrode 11 is arranged on
The center of outer annular tungsten electrode 9, and ensure coaxial.Conducting bolt 14 is fixed on lower gun body 4 by adapter sleeve 15, and and external electrical
Pole electric conductor 12 is connected with central clamp body 16；Lower gun body 4 and gas hood 10 are linked together the inwall of gas hood 10 by locking nut 7
Connect guide pipe 6.
Upper cutting gun 2, lower gun body 4, the three of connected body 3 are coaxially connected, and O-shaped sealing is provided between upper cutting gun 2 and connected body 3
Circle, two sets of formation is independent cold between connected body 3 and upper cutting gun 2 and lower gun body 4 and insulating sleeve 6, outer electrode electric conductor 12
But water circulation system, ensure that gun body effectively cools down.Annular water tank, 4 external side of lower gun body are formed between lower gun body 4 and insulating sleeve 5
Connecting adapter, cooling water enter from lower gun body 4, by annular water tank, into outer electrode electric conductor 12 and insulating sleeve 5 it
Between water channel, finally by adapter 13 discharge lower gun body, ensure gun body between effectively cool down.To ensure sealing, outer electrode
O-ring seal is equipped between electric conductor 12 and insulating sleeve 5 and insulating sleeve 5 and lower gun body 4.
The diameter range of outer annular tungsten electrode 9 is 5-12mm, and top cone angle scope is 30-60o, and boss diameter range is 3-
8mm, the diameter range of center tungsten electrode 11 are 1-6mm, and cone angle scope is 30-60o, and center tungsten electrode 11 contacts with outer annular tungsten electrode 9
Part can scribble resistant to elevated temperatures insulating materials on the surface of center tungsten electrode 11, and guarantee is insulated therebetween.
Center tungsten electrode 11 and outer annular tungsten electrode 9 connect two independence for Taiwan vertical position weldings by central electrode folder 1, conducting bolt 14 respectively
Power supply is connect, the subnormal ambient that the electric arc of outer annular tungsten electrode 9 is built can be compressed to the electric arc of center tungsten electrode 11, realize highly efficient
Piercing welding.
A kind of embedded dual power supply and double tungsten electrode welding methods, it is characterised in that comprise the following steps：
（1）Open multiple cooling water recirculation systems, multiple protection gas bottles, multiple sources of welding current；
（2）Welding parameter is adjusted, is welded；
（3）After the completion of welding, multiple sources of welding current, multiple protection gas bottles, multiple cooling water recirculation systems are closed successively.
As shown in Fig. 2 the subnormal ambient that welding process outer annular electric arc is built is compressed to electric arc, energy density
Further improve, increase welding penetration, efficiency, obtain quality weld, and save welding cost.
Embodiment only illustrates technical scheme, rather than carries out any restrictions to it；Although with reference to the foregoing embodiments
The present invention is described in detail, for the person of ordinary skill of the art, still can be to previous embodiment institute
The technical scheme of record is modified, or carries out equivalent substitution to which part technical characteristic；And these modifications or substitutions, and
The essence of appropriate technical solution is not set to depart from the spirit and scope of claimed technical solution of the invention.
Claims (7)
1. a kind of embedded dual power supply and double tungsten electrode welders, it is characterised in that：The connection being connected including upper cutting gun, with upper cutting gun
Junctor, the lower gun body being connected with connected body, through the center tungsten electrode of upper cutting gun connected body lower gun body, through upper cutting gun Clamping Center
The central electrode folder of tungsten electrode, the outer annular tungsten electrode being arranged on outside the center tungsten electrode of bottom in lower gun body, it is arranged on external rings
Outer electrode electric conductor outside shape tungsten electrode, the conducting bolt being arranged in external current conductor, be arranged on outer electrode electric conductor and
Insulating sleeve between lower gun body, the part contacted with outer annular tungsten electrode on the tungsten electrode of center are provided with high-temperature insulation material, on
Gun body, connected body, lower gun body, center tungsten electrode and outer annular tungsten electrode are coaxially connected, and connected body is provided with water inlet and delivery port, makes
Upper cutting gun and connected body form cooling water recirculation system, and lower gun body is provided with water inlet and delivery port, make lower gun body, insulating sleeve and
Outer electrode electric conductor forms cooling water recirculation system.
2. a kind of embedded dual power supply according to claim 1 and double tungsten electrode welders, it is characterised in that：Lower gun body is set
There is air inlet, gap of the protection gas by center tungsten electrode and outer annular tungsten electrode can be made.
3. a kind of embedded dual power supply according to claim 1 and double tungsten electrode welders, it is characterised in that：Conducting bolt
It is hollow, protection gas can be made to pass through the gap between outer annular tungsten electrode and outer electrode electric conductor.
4. according to a kind of any described embedded dual power supplies of claim 1-3 and double tungsten electrode welders, it is characterised in that：Also
Including central clamp body, outer electrode folder, adapter sleeve, gas hood, guide pipe and locking nut, central clamp body connection central electrode
Folder and outer electrode electric conductor, and Clamping Center electrode holder, conducting bolt be fixed on by adapter sleeve on lower gun body and with outside
Electrode and central clamp body phase connect, and outer electrode folder and outer electrode electric conductor are jointly to annular tungsten electrode mechanical grip, adapter sleeve
Coordinating with lower gun body screw thread ensures the firm connection of conducting bolt, and lower gun body is connected with gas hood by tightening nut, and gas hood inwall connects
Connect guide pipe.
5. a kind of embedded dual power supply according to claim 1 and double tungsten electrode welders, it is characterised in that：Upper cutting gun with
O-ring seal is equipped between connected body, between outer electrode electric conductor and insulating sleeve, between insulating sleeve and lower gun body.
6. a kind of embedded dual power supply according to claim 1 and double tungsten electrode welders, it is characterised in that：Outer annular
Tungsten electrode diameter range is 5-12mm, and top cone angle scope is 30-60o, and boss diameter range is 3-8mm, center tungsten electrode diameter model
It is 30-60o to enclose for 1-6mm, cone angle scope.
7. a kind of embedded dual power supply and double tungsten electrode welding methods, it is characterised in that comprise the following steps：
（1）Open multiple cooling water recirculation systems, multiple protection gas bottles, multiple sources of welding current；
（2）Welding parameter is adjusted, is welded；
（3）After the completion of welding, multiple sources of welding current, multiple protection gas bottles, multiple cooling water recirculation systems are closed successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626605.5A CN107335906A (en) | 2017-07-28 | 2017-07-28 | A kind of embedded dual power supply and double tungsten electrode welders and welding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710626605.5A CN107335906A (en) | 2017-07-28 | 2017-07-28 | A kind of embedded dual power supply and double tungsten electrode welders and welding method |
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| CN107335906A true CN107335906A (en) | 2017-11-10 |
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| CN201710626605.5A Pending CN107335906A (en) | 2017-07-28 | 2017-07-28 | A kind of embedded dual power supply and double tungsten electrode welders and welding method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695492A (en) * | 2017-11-13 | 2018-02-16 | 昆山华恒焊接股份有限公司 | TIG welding guns |
| CN109483022A (en) * | 2018-11-28 | 2019-03-19 | 江苏科技大学 | A kind of double tungsten electrode TOPTIG welding methods of gas-magnetic combined regulating |
| CN115106628A (en) * | 2022-08-11 | 2022-09-27 | 上海工程技术大学 | Argon tungsten-arc welding gun suitable for aluminum alloy welding |
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| CN105436672A (en) * | 2016-01-12 | 2016-03-30 | 北京工业大学 | Hollow cathode annular negative-pressure electric arc welding method |
| CN106141387A (en) * | 2016-08-24 | 2016-11-23 | 江苏阿斯美特精工科技有限公司 | Coaxial hollow tungsten electrode heating wire TIG welding gun, welder and welding method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695492A (en) * | 2017-11-13 | 2018-02-16 | 昆山华恒焊接股份有限公司 | TIG welding guns |
| CN107695492B (en) * | 2017-11-13 | 2023-09-05 | 昆山华恒焊接股份有限公司 | TIG welding gun |
| CN109483022A (en) * | 2018-11-28 | 2019-03-19 | 江苏科技大学 | A kind of double tungsten electrode TOPTIG welding methods of gas-magnetic combined regulating |
| CN109483022B (en) * | 2018-11-28 | 2021-04-23 | 江苏科技大学 | Gas-magnetic combined regulation and control double-tungsten-electrode TOPTIG welding method |
| CN115106628A (en) * | 2022-08-11 | 2022-09-27 | 上海工程技术大学 | Argon tungsten-arc welding gun suitable for aluminum alloy welding |
| CN115106628B (en) * | 2022-08-11 | 2023-06-27 | 上海工程技术大学 | Argon tungsten-arc welding gun suitable for aluminum alloy welding |
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