CN106378520B - A kind of high current tungsten electrode argon arc welding gun of cooling cathode - Google Patents
A kind of high current tungsten electrode argon arc welding gun of cooling cathode Download PDFInfo
- Publication number
- CN106378520B CN106378520B CN201610838253.5A CN201610838253A CN106378520B CN 106378520 B CN106378520 B CN 106378520B CN 201610838253 A CN201610838253 A CN 201610838253A CN 106378520 B CN106378520 B CN 106378520B
- Authority
- CN
- China
- Prior art keywords
- newel
- tungsten electrode
- hood
- tail
- welding gun
- 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.)
- Expired - Fee Related
Links
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
- B23K9/285—Cooled electrode holders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
- Resistance Welding (AREA)
Abstract
The present invention relates to tungsten electrode argon arc welding guns, disclose a kind of high current tungsten electrode argon arc welding gun of cooling cathode, the outer cylinder of gas hood is connected with lower end including newel, newel lower part covers fixed tungsten electrode stick by tungsten electrode, newel is fixedly connected with tail-hood with outer cylinder top, and the annular space between newel and outer cylinder forms the air flue being connected to the enterprising stomata of tail-hood；Newel outside weldings have cylindrical central sleeve, and the annular space between cylindrical central sleeve and newel constitutes return water cavity；Return water cavity lower part connects hose, and hose is passed through by air flue and is connected to the inlet opening on tail-hood；Return water cavity is passed to outside tail-hood by the apopore on centrally disposed column top.Cooling water is imported welding gun by the present invention, tungsten electrode stick is carried out strongly cooling, welding gun current-carrying capability is significantly increased, huge compression cathodic region area, to increase the penetration capacity of electric arc, make welding gun that there is better penetrability, improves the stability of welding process, increases speed of welding, welding efficiency is significantly improved, welding manufacture cost is saved.
Description
Technical field
The present invention relates to a kind of tungsten electrode argon arc welding guns, in particular to a kind of improved based on cathode pinch effect
Arc performance integrally carries out the TIG welding gun of effective direct water-cooling to tungsten electrode stick, welding efficiency can be improved.
Background technique
Argon tungsten-arc welding (TIG) is a kind of high quality welds technique, is widely applied in the industrial production.But due to TIG
Weldering is using free electric arc as heat source, and fusion penetration is shallower, and weldering speed is small, and welding efficiency is very low, excellent there is an urgent need to improve to TIG weldering
Change.
Constrained arc diameter can improve arc performance.Constrained arc diameter can be improved arc energy density and electric arc pressure
Power finally increases substantially welding efficiency to increase fusion penetration significantly.It can choose compression yin in order to achieve this goal
Pole, principle are as follows: water cooling tungsten electrode can take away tungsten electrode heat, compress high-temperature area area, thus compression of electronic emitting area,
Cathode zone area is exactly compressed, so that electric arc root concentrates on the very small region at tungsten electrode tip；Current density increases, and electric arc is certainly
The magnetic compression effect of body enhances, can be with arc of folding column dimension, so as to improve heat-force characteristic of electric arc.
Water cooling compression cathode theory is applied to improvement welding gun by foreign study person, improves arc characteristic.1997, Australia
Big Leah research institution CSIR O is based on water cooling and compresses cathode effect, cooperates larger welding current, has invented K-TIG welding method,
Realize the piercing welding to low thermal conductivity materials such as 3~12mm thickness titanium alloy, stainless steels.Since the technique welding penetration is big,
Perforation weldering can be realized to cut deal part or realizes high speed melting welding, greatly improve production efficiency.Perforation to cut deal part
Weldering, does not need bevel, single pass single-sided welding, two-sides forming；Welding wire is eliminated, greatly shortening manufacturing time；Reduce weldering
Stitch heat affected area and workpiece deflection.Then, German Dresden University Of Technology, she up to high-tech welding limit company and
Kjellberg Finsterwalde combines the welding gun design carried out based on cathode pinch effect, Primary Study cathode compression
Effect influences arc shape；K-TIG welding procedure is expanded to from the perforation weldering to low thermal conductivity material to high heat conductance material
The high speed melting welding of material.The country is less to the research of K-TIG, the Suzhou Hua Han Science and Technology Ltd. Primary Study equipment of K-TIG,
Butt welding gun has carried out imitated research.Lanzhou University of Science & Technology Zhang Ruihua is using K-TIG welding gun as research object, according to magnetohydrodynamics
Theory establishes the mathematic model of three-dimensional finite element of electric arc, using FLUENT software to K-TIG welding gun internal protection gas and weldering
It connects electric arc and has carried out numerical simulation, obtain Temperature Distribution, Potential Distributing, arc pressure and the plasma speed when high current welding
Spend field distribution.The welding gun that the above team develops is all based on water cooling compression cathode effect and carrys out compression arc, greatly improves weldering
Efficiency is connect, production cost is reduced.Both welding gun current-carrying capabilities reach 1000A, tungsten electrode scaling loss very little in welding process；Water cooling
Mode is all on the outside of tungsten electrode plus water cooling copper sleeve, indirect water-cooling tungsten electrode, cooling water channel apart from tungsten electrode farther out, that is to say, that it is right
The water cooling compression effectiveness in tungsten electrode cathodic region also improves room for promotion.
Summary of the invention
The present invention is to solve the technical issues of high current welding gun tungsten electrode part is easily burned out, provides a kind of cooling cathode
High current tungsten electrode argon arc welding gun, design internal return water cavity and tungsten electrode stick integrally cooled down strongly, increase arresting for electric arc
Shu Xiaoying increases the penetration capacity of electric arc, so that the workpiece that welding is thicker, further increases welding stability, expands and stablizes weldering
The process window connect.
In order to solve the above-mentioned technical problem, the present invention is achieved by technical solution below:
A kind of high current tungsten electrode argon arc welding gun of cooling cathode, including newel and coaxial arrangement outside newel
Outer cylinder, the newel lower central are fixed with tungsten electrode stick by tungsten electrode set, and outer cylinder lower end is connected with gas hood；The newel and
The outer cylinder top is fixedly connected in tail-hood, and the tail-hood is from top by annular space institute shape between the newel and the outer cylinder
At air flue closing, the air flue is connected to the air inlet through the tail-hood；During socket is equipped with outside the newel
Heart sleeve, the cylindrical central sleeve upper/lower terminal, which is respectively welded, is fixed on the newel so that the cylindrical central sleeve and it is described in
Annular space between stem constitutes return water cavity；Return water cavity lower part is logical by two that are preset in the cylindrical central sleeve bottom
Hole is separately connected two hoses, two hoses passed through by the air flue and respectively with two water inlets through the tail-hood
Hole connection；Return water cavity top passes through the water-guiding hole being arranged in the newel and going out in the newel is arranged in
Water hole connection, the apopore is through the tail-hood and passes to outside the tail-hood.
Wherein, the tail-hood, the newel, the cylindrical central sleeve, the tungsten electrode set are copper.
The beneficial effects of the present invention are:
High current tungsten electrode argon arc welding gun of the invention improves welding gun design, and cooling water is passed through double inlet openings and imports weldering
Rifle integrally carries out directly strong cooling to tungsten electrode stick, more effectively takes away tungsten electrode stick heat, be added significantly to the current-carrying energy of welding gun
Power, while cathodic region area can be greatly compressed, arc cathode area is compressed to tungsten electrode stick tip very small region, is realized to arc
The stronger compression of column makes welding gun have better penetrability, improves the stabilization of welding process to increase the penetration capacity of electric arc
Property, increase speed of welding, significantly improve welding efficiency, save welding manufacture cost.
Detailed description of the invention
Fig. 1 is the first diagrammatic cross-section of high current tungsten electrode argon arc welding gun provided by the present invention；
Fig. 2 is the second diagrammatic cross-section of high current tungsten electrode argon arc welding gun provided by the present invention.
In figure: 1: the first inlet opening；2: the first pads；3: tail-hood；4: the second pads；5: newel；6: third weldering
Contact；7: cylindrical central sleeve；8: the first hoses；9: return water cavity；10: outer sleeve；11: air flue；12: gas hood；13: tungsten electrode set；14:
4th pad；15: tungsten electrode stick；16: the second hoses；17: the five pads；18: the second inlet openings；19: apopore；20: the
Six pads；21: the seven pads；22: air inlet.
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows:
As depicted in figs. 1 and 2, a kind of high current tungsten electrode argon arc welding gun of cooling cathode is present embodiments provided, mainly
It can reach the welding gun design of 1000A, including tail-hood 3, the first inlet opening 1, the second inlet opening 18, air inlet for current-carrying capability
22, apopore 19, outer sleeve 10, gas hood 12, newel 5, cylindrical central sleeve 7, return water cavity 9, air flue 11, the first hose 8, second
Hose 16, tungsten electrode cover 13, tungsten electrode stick 15.Wherein, tail-hood 3, newel 5, cylindrical central sleeve 7, tungsten electrode set 13 are copper, tungsten electrode stick
15 be tungsten prepared material.
Including the tail-hood 3 being set at the top of welding gun.Be equipped on tail-hood 3 the first inlet opening 1 being arranged symmetrically and second into
Water hole 18, the first inlet opening 1 and the second inlet opening 18 are formed by longitudinal two water inlet pipes for being penetratingly installed on tail-hood 3 respectively,
The water inlet pipe of the first inlet opening 1 is formed by being welded and fixed at the top of the first pad 2 and tail-hood 3, forms the second inlet opening 18
Water inlet pipe at the top of the 5th pad 17 and tail-hood 3 by being welded and fixed.Be also equipped with air inlet 22 on tail-hood 3, air inlet 22 by
Longitudinal air inlet pipe for being penetratingly installed on tail-hood 3 is formed, and the air inlet pipe for forming air inlet 22 passes through the 7th pad 21 and tail-hood 3
Top is welded and fixed.
3 lower part of tail-hood is provided with external screw thread, is threadedly coupled by the external screw thread with outer sleeve 10.The setting of 10 lower part of outer sleeve
There is external screw thread, is threadedly coupled by the external screw thread with gas hood 12.Newel 5,5 bottom of newel are coaxially arranged with inside outer sleeve 10
End is flushed with gas hood 12, and 5 top of newel passes through tail-hood 3 and extends to outside it, and passes through the 6th upper and lower pad 20 respectively
It is welded and fixed respectively with 3 top of tail-hood and bottom end with the second pad 4.
5 outer cover of newel is equipped with cylindrical central sleeve 7, and the upper end of cylindrical central sleeve 7 is welded by third pad 6 and newel 5
Fixation is connect, the lower end of cylindrical central sleeve 7 is welded and fixed by the 4th pad 14 with newel 5.Cylindrical central sleeve 7 and newel 5 it
Between be provided with annular space, and the annular section constitutes return water cavity 9.Annular section between cylindrical central sleeve 7 and outer sleeve 10 is constituted
Air flue 11, and 22 bottom end of air inlet is connected to air flue 11.The first hose 8 and the second hose 16 are provided in air flue 11, first is soft
Pipe 8 and 16 upper end of the second hose are connect with the bottom end of the first inlet opening 1 and the second inlet opening 18 respectively, the first hose 8 and second
The bottom end of hose 16 is respectively connected to preset two through-holes in 7 lower end of cylindrical central sleeve, to be connected to return water cavity 9.Newel 5
Top is provided with apopore 19, and 19 lower end of apopore is connected to by two water-guiding holes with return water cavity 9, and 19 upper end of apopore passes through
Tail-hood 3 passes to outside tail-hood 3.
Tungsten electrode set 13 is sleeved on outside tungsten electrode stick 15, and is connected and fixed with the compression of tungsten electrode stick 15 as electrode tip.Tungsten electrode set
13 tops are provided with the external screw thread of certain length, screw into 5 inside of newel by this and are fixedly connected with newel 5.Peace
When dress, tungsten electrode covers 13 upper semisections and is divided to two valves, and centre sandwiches tungsten electrode stick 15, and tungsten electrode set 13 is rotated into 5 inner thread of newel
Interior, as screw-in depth increases, tungsten electrode covers 13 liang of valves and gradually tightens, and clamps tungsten electrode stick 15.
Welding gun of the invention in use, cooling water from the first inlet opening 1 and the second inlet opening 18 respectively through 8 He of the first hose
Second hose 16 flows into the return water cavity 9 between cylindrical central sleeve 7 and newel 5, whole to tungsten electrode stick 15 to carry out after water cooling therefrom
The apopore 19 at 5 middle part of stem flows out.In cooling procedure, the cooling component that it is flowed through of cooling water is especially whole to tungsten electrode stick 15
Reach pressure cooling, so that the high temperature area contraction of 15 end of tungsten electrode stick, that is, force to shrink cathodic region, constrained arc root
Portion increases the current density of electric arc root, and the magnetic compression effect enhancing of electric arc itself, arc column size is compressed, so as to improve electricity
Heat-force characteristic of arc.This welding gun can adjust cathode compression degree by changing water velocity, obtain different compression degrees
Arc column can better adapt to the welding of different materials.Meanwhile protective gas enters outer sleeve 10 and center from air inlet 22
The air flue 11 formed between cylinder 7 enters back into protection gas hood 12, protection tungsten electrode and electric arc and molten bath.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, can be with when not departing from invention objective and scope of the claimed protection
The specific transformation of many forms is made, within these are all belonged to the scope of protection of the present invention.
Claims (2)
1. a kind of high current tungsten electrode argon arc welding gun of cooling cathode, including newel and coaxial arrangement are outside the newel
Outer cylinder；It is characterized in that,
The newel lower central is fixed with tungsten electrode stick by tungsten electrode set, the tungsten electrode set cover outside the tungsten electrode stick and
The tungsten electrode set upper semisection is divided to two valves, and the tungsten electrode set upper outside is provided with screw thread, is threaded into the newel by this
Inside is fixedly connected with the tungsten electrode set with the newel, so that the tungsten electrode is covered two valves by screw-in depth increase and gradually receives
Tightly, to clamp the tungsten electrode stick；
The outer cylinder lower end is connected with gas hood；The newel and the outer cylinder top are fixedly connected in tail-hood, the tail-hood
Be formed by air flue closing from top by annular space between the newel and the outer cylinder, the air flue with through the tail-hood
Air inlet connection；Socket is equipped with cylindrical central sleeve outside the newel, and the cylindrical central sleeve upper/lower terminal is respectively welded solid
Due to the newel, so that the annular space between the cylindrical central sleeve and the newel constitutes return water cavity；The return water is empty
Chamber lower part is separately connected two hoses by being preset in two through-holes of the cylindrical central sleeve bottom, and two hoses are by described
Air flue is passed through and is connected to respectively with two inlet openings through the tail-hood；Return water cavity top is by being arranged described
Water-guiding hole in newel is connected to the apopore being arranged in the newel, and the apopore is through the tail-hood and leads to
Outside to the tail-hood；
Cooling water flows into the return water cavity by two inlet openings two hose, integrally carries out to the tungsten electrode stick
Apopore outflow after water cooling in the middle part of the newel.
2. a kind of high current tungsten electrode argon arc welding gun of cooling cathode according to claim 1, which is characterized in that the tail
Lid, the newel, the cylindrical central sleeve, the tungsten electrode set are copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838253.5A CN106378520B (en) | 2016-09-20 | 2016-09-20 | A kind of high current tungsten electrode argon arc welding gun of cooling cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610838253.5A CN106378520B (en) | 2016-09-20 | 2016-09-20 | A kind of high current tungsten electrode argon arc welding gun of cooling cathode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106378520A CN106378520A (en) | 2017-02-08 |
| CN106378520B true CN106378520B (en) | 2019-03-22 |
Family
ID=57936702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610838253.5A Expired - Fee Related CN106378520B (en) | 2016-09-20 | 2016-09-20 | A kind of high current tungsten electrode argon arc welding gun of cooling cathode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106378520B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3424633A1 (en) * | 2017-07-04 | 2019-01-09 | Fronius International GmbH | Tensioning device for tensioning a welding electrode |
| CN107695492B (en) * | 2017-11-13 | 2023-09-05 | 昆山华恒焊接股份有限公司 | TIG welding gun |
| CN109967844B (en) * | 2017-12-28 | 2024-05-10 | 唐山开元焊接自动化技术研究所有限公司 | Double-electrode argon arc welding gun |
| CN108838492B (en) * | 2018-06-27 | 2020-08-28 | 天津大学 | GTAW welding gun of dry ice strong-cooling tungsten electrode |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3732565B2 (en) * | 1996-01-31 | 2006-01-05 | バブコック日立株式会社 | TIG welding equipment |
| CN102009258A (en) * | 2010-11-29 | 2011-04-13 | 苏州市南方欣达双金属材料有限公司 | Water-cooled welding gun |
| CN102248264A (en) * | 2011-07-12 | 2011-11-23 | 茅鹏 | Welding machine with adjustable electric arc energy density |
| CN102528249A (en) * | 2012-03-02 | 2012-07-04 | 北京工业大学 | Condensation electric arc welding gun |
| CN104209644B (en) * | 2014-08-14 | 2016-04-27 | 昆山华焊科技有限公司 | Modified secondary compression type plasma gun |
| CN204954135U (en) * | 2015-09-24 | 2016-01-13 | 唐山开元焊接自动化技术研究所有限公司 | Double -deck water -cooling melts argon arc deeply and welds welder |
-
2016
- 2016-09-20 CN CN201610838253.5A patent/CN106378520B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106378520A (en) | 2017-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105983774B (en) | A kind of copper-clad tungsten electrode water cooling TIG welding guns based on cathode pinch effect | |
| CN106378520B (en) | A kind of high current tungsten electrode argon arc welding gun of cooling cathode | |
| CN104668743B (en) | A kind of device utilizing TIG weld method to realize PLASMA ARC WELDING | |
| CN106077920B (en) | A kind of tungsten electrode internal water cooling TIG welding guns based on cathode pinch effect | |
| CN102528249A (en) | Condensation electric arc welding gun | |
| CN1748925A (en) | Water cooling jacket for titanium alloy tube ring seam by tungsten argon arc welding and seam following cooling welding method | |
| CN105195875B (en) | Lockhole effect TIG deep penetration welding welding guns | |
| CN107363433A (en) | A kind of titanium or titanium alloy flux-cored wire used for welding | |
| CN106670630A (en) | Special welding gun with double flux-cored wires for underwater wet welding | |
| CN203171126U (en) | Argon arc self-fluxing welding gun | |
| CN202951963U (en) | Miniature gas-cooled type tungsten inert gas (TIG) small welding gun | |
| CN201524872U (en) | Tail-gas protective shield for girth automatic welding of titanium alloys or high temperature alloys | |
| CN206305589U (en) | A kind of titanium alloy plate welding protection drags cover | |
| CN210306188U (en) | Welding gas protection device | |
| CN107335906A (en) | A kind of embedded dual power supply and double tungsten electrode welders and welding method | |
| CN106735786B (en) | Integration lockhole effect TIG deep penetration welding welder | |
| CN205684878U (en) | A kind of high-efficiency water cooling argon-arc welding gun | |
| CN214640911U (en) | Water-cooling welding gun | |
| CN103212914A (en) | External sound field type titanium-alloy manual welding device and welding method | |
| CN203830887U (en) | Water-cooled welding gun and welding device using same | |
| CN206550482U (en) | A kind of integrated lock effect of holes TIG deep penetration welding welding guns | |
| CN207563891U (en) | A kind of large current load K-TIG welding guns | |
| CN111408827B (en) | Integrated efficient cooling deep fusion welding gun | |
| CN207309176U (en) | Suitable for the beam-plasma pipette tips of small-sized bore area processing | |
| CN209223372U (en) | A kind of gas tungsten arc welding welding gun of compressible electric arc |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20210920 |