CN103600162B - Argon-arc welding gun - Google Patents
Argon-arc welding gun Download PDFInfo
- Publication number
- CN103600162B CN103600162B CN201310645971.7A CN201310645971A CN103600162B CN 103600162 B CN103600162 B CN 103600162B CN 201310645971 A CN201310645971 A CN 201310645971A CN 103600162 B CN103600162 B CN 103600162B
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- argon
- welding gun
- carbon brush
- arc welding
- rotary sleeve
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to welder field, in particular to argon-arc welding gun.This argon-arc welding gun, comprises interior rifle body, outer holster, fixed axis and rotary sleeve; It is external that described outer holster is set in described interior rifle; It is outer and be slidably matched with described fixed axis that described rotary sleeve is enclosed within described fixed axis; The end of described rotary sleeve and the sidewall of described outer holster are fixed.Argon-arc welding gun provided by the invention, compared with prior art, meets the free adjustment of the attitude angle of argon-arc welding gun, makes argon-arc welding gun meet the requirement of automatic welding Butt welding gun.
Description
Technical field
The present invention relates to welder field, in particular to argon-arc welding gun.
Background technology
Argon arc welding utilizes argon gas to the protection of wlding, and logical excessive current makes wlding on welded metal, be melted into liquid formation bath, makes a kind of solder technology that welded metal and wlding combine.Owing to constantly serving argon gas in high-temperature fusion welding, wlding can not be contacted with the oxygen in air, thus prevent the oxidation of wlding, therefore argon arc welding can the various metals such as soldering stainless steel, aluminium and alloy material.
In correlation technique, when using argon-arc welding gun to carry out argon arc welding, argon-arc welding gun can only weld with fixing attitude angle, and can not meet the significantly change of Butt welding gun attitude angle in welding process.
Summary of the invention
The object of the present invention is to provide argon-arc welding gun, to solve the above problems.
Provide a kind of argon-arc welding gun in an embodiment of the present invention, comprise interior rifle body and outer holster; It is external that outer holster is set in interior rifle; It is outer and be slidably matched with fixed axis that rotary sleeve is enclosed within fixed axis; The end of rotary sleeve and the sidewall of outer holster are fixed.
The argon-arc welding gun that the embodiment of the present invention provides, compared with prior art, in welding process, can by this rotary sleeve of any device driven rotary, because rotary sleeve and fixed axis are slidably matched, namely rotary sleeve can rotate on fixed axis, and rotary sleeve is fixedly connected with the sidewall of outer holster, then rotary sleeve rotates on fixed axis, drive outer holster around the center axis thereof of fixed axis simultaneously, avoid the tangled up and knotted of the feed wire because posture of welding torch angle adjustment causes, cooling water pipe, argon gas pipeline.Thus meet the free adjustment of the attitude angle of argon-arc welding gun, make argon-arc welding gun meet the requirement of automatic welding Butt welding gun.
Accompanying drawing explanation
Fig. 1 shows the half sectional view of the argon-arc welding gun of the embodiment of the present invention;
Fig. 2 shows the E-E view of the half sectional view of the argon-arc welding gun of the embodiment of the present invention;
Fig. 3 shows the interior rifle body of the embodiment of the present invention and the cross-sectional view of outer holster;
The axle survey that Fig. 4 shows the argon-arc welding gun of the embodiment of the present invention partly cuts open figure.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the invention provides a kind of argon-arc welding gun, it comprises interior rifle body 110, outer holster 111, fixed axis 101 and rotary sleeve 119; Outer holster 111 is set in outside described interior rifle body 110; It is outer and be slidably matched with described fixed axis 101 that described rotary sleeve 119 is enclosed within described fixed axis 101, and namely rotary sleeve 119 can rotate on fixed axis 101; The end of described rotary sleeve 119 and the sidewall of described outer holster 111 are fixed.In welding process, can by this rotary sleeve 119 of any device driven rotary, because rotary sleeve 119 and fixed axis 101 are slidably matched, namely rotary sleeve 119 can rotate on fixed axis 101, and rotary sleeve 119 and being fixedly connected with the sidewall of outer holster 111, then rotary sleeve 119 rotates on fixed axis 101, drives outer holster 111 around the center axis thereof of fixed axis 101 simultaneously, avoids the tangled up and knotted of the feed wire because posture of welding torch angle adjustment causes, cooling water pipe, argon gas pipeline.Thus meet the free adjustment of the attitude angle of argon-arc welding gun, make argon-arc welding gun meet the requirement of automatic welding Butt welding gun.
In addition, the inwall of described rotary sleeve is provided with intake chamber 103, rhone 117 and air inlet duct 116; Described fixed axis 101 is provided with water inlet C1, delivery port C2 and air inlet C3; Described rotary sleeve 119 is provided with water inlet D1, delivery port D2 and gas outlet D3.The two ends of described intake chamber 103 are communicated with delivery port D2 with described water inlet C1 respectively; The two ends of described rhone 117 are communicated with delivery port C2 with described water inlet D1 respectively; The two ends of described air inlet duct 116 are communicated with gas outlet D3 with described air inlet C3 respectively.Described gas outlet D3 is communicated with the air inlet B1 of described air guide chamber 112; Described delivery port C2 is communicated with the water inlet A 1 of described circulation duct; Described water inlet D1 is communicated with the water outlet A 2 of described circulation duct.
Particularly, cooling fluid can enter in intake chamber 103 from water inlet C1, discharge from delivery port D2 and enter in circulation duct from water inlet A 1, after in argon-arc welding gun, rifle body carries out heat exchange, discharge from the water outlet A 2 of circulation duct and enter in rhone from water inlet D1, finally discharging from delivery port C2.Cooling fluid, through this circulation, can carry out heat exchange with interior rifle body on the one hand, and the temperature of rifle body in reducing, can also carry out heat exchange with rotary sleeve on the other hand, cool rotary sleeve.And argon gas enters in air inlet duct from air inlet C3, discharge from gas outlet D3 and enter in air guide chamber from air inlet B1, finally discharging from one end of the opening of air guide chamber and form protective layer.
Preferably, the equal annular of described intake chamber 103, rhone 117 and air inlet duct 116 is arranged on the inwall of described rotary sleeve 119; Along the axis of described rotary sleeve 119, the both sides of described intake chamber 103, rhone 117 and described air inlet duct 116 are provided with seal 104.Because rotary sleeve 119 can rotate on fixed axis 101, then in order to make rotary sleeve 119 moment in rotation process be communicated with air inlet C3 with the water inlet C1 that fixed axis 101 is arranged, delivery port C2, this intake chamber 103, rhone 117 and air inlet duct 116 are preferably set to annular, around the inwall one week of rotary sleeve 119.In addition, if cooling fluid enters into argon gas, then, when the argon gas containing cooling fluid is sprayed onto on tungsten electrode and metal to be welded, because tungsten electrode upper reaches is connected with high electric current, then cooling fluid may damage tungsten electrode and metal to be welded.In order to avoid cooling fluid enters into argon gas, intake chamber, the both sides of rhone and air inlet duct are provided with seal 104, make intake chamber, rhone and air inlet duct mutually isolated, it should be noted that, according to common practise, intake chamber, use two seals three grooves can be separated between rhone and air inlet duct, and the embodiment of the present invention is at intake chamber, every side of rhone and air inlet duct is provided with seal, namely six seals are provided with, because current seal can not accomplish absolute sealing, therefore according to adopting two seals likely to cause cooling fluid to enter into argon gas in common practise, and the embodiment of the present invention adopts six seals to carry out multi-layer sealed, improve sealing effectiveness.Wherein the seal can be O type circle, is preferably this special envelope.
Owing to fixed axis 101 being provided with water inlet C1, delivery port C2 and air inlet C3, therefore for the ease of water inlet C1, delivery port C2 and air inlet C3 and being communicated with between intake chamber 103, rhone 117 and air inlet duct 116, be provided with along the inlet opening 118 of its axis in described fixed axis 101, osculum and air admission hole; The two ends of described inlet opening 118 are communicated with described water inlet C1 and described intake chamber 103 respectively; The two ends of described osculum are communicated with described delivery port C2 and described rhone 117 respectively; The two ends of described air admission hole are communicated with described air inlet C3 and described air inlet duct 116 respectively.
In this argon-arc welding gun, high electric current can be transferred to tungsten electrode 108 by fixed axis 101 and rotary sleeve 119, in order to avoid high electric current makes the electrical connection hot melt between fixed axis 101 and rotary sleeve 119, as shown in Figure 2, slip-ring device 105 is provided with between described rotary sleeve 119 and described outer holster 111; Described slip-ring device 105 comprises the carbon brush holder 201 and multiple carbon brush mechanism fixed with described rotary sleeve 119 and described outer holster 111; Described carbon brush holder 201 is for having the cylinder of the first centre bore; Described first centre bore and described fixed axis 101 are slidably matched; Described carbon brush holder 201 is provided with multiple radially extension and the carbon brush chamber be communicated with described first centre bore; Carbon brush mechanism described in each comprises carbon brush 202 and elastic component 203; Described carbon brush 202 is electrically connected with described carbon brush holder 201; Multiple described elastic component 203 coordinates one by one with multiple described carbon brush 202 respectively and applies radial tightening power to each carbon brush 202; Carbon brush 202 and multiple described carbon brush chamber of multiple described carbon brush mechanism are slidably matched one by one.Namely rotary sleeve 119 and fixed axis 101 are in the process rotated, and electrical connection is between the two realized by carbon brush, and wherein the carbon brush moment is pressed on fixed axis by elastic component, improves the service life of rotary sleeve and fixed axis.In addition, on fixed axis, also cover has copper slip ring, and namely carbon brush is pressed on copper slip ring by elastic component, can reduce the friction between carbon brush and copper slip ring, improves the service life of carbon brush.
In addition, fixing between carbon brush holder 201 and outer holster 111, particularly, the end of described carbon brush holder 201 is provided with guide rail 115; The sidewall of described outer holster 111 is provided with slide block 114; Described guide rail 115 is slidably matched with described slide block 114.Namely the slide block 114 of outer holster 111 coordinates with the guide rail 115 of carbon brush holder, thus is fixed with carbon brush holder by outer holster 111, but also is convenient to the dismounting of outer holster and carbon brush holder.In addition, briquetting 205 and adjustment knob 204 is also provided with in the end of carbon brush holder, when needing the position regulating welding gun fixing on carbon brush holder along tungsten electrode direction, unscrew briquetting 205, rotate this adjustment knob 204, thus welding gun can be regulated along the position of slide block on guide rail in tungsten electrode direction, and then briquetting 205 is tightened, thus fixing welding gun is along the position in tungsten electrode direction.
On the basis of above-described embodiment, in order to the power transmission of will rotate is to rotary sleeve, rotary sleeve 119 is fixed with synchronizing wheel 102; Described synchronizing wheel 102 is coaxial with described rotary sleeve 119, namely by this synchronizing wheel 102 by the power transmission of transmission to rotary sleeve 119, realize the adjustment of the attitude angle of welding gun.
In prior art, argon-arc welding gun comprises the cooling chamber of tungsten electrode and this tungsten electrode of parcel.Along the axial direction of tungsten electrode, one end of this cooling chamber is provided with water inlet, and the other end is provided with delivery port, and cooling water enters in cooling chamber from water inlet, then flows out from delivery port, thus is argon-arc welding gun cooling.
But argon-arc welding gun can produce high temperature in welding process, cooling water only enters from one end of cooling chamber, axial direction along tungsten electrode is discharged from the other end, the path of cooling water in cooling chamber is shorter, and the heat exchanger time of cooling water and argon-arc welding gun is short, cannot effectively dispel the heat.
And the argon-arc welding gun of the present embodiment adopts dynamic Contact or movable sealing mode, particularly, the excircle of interior rifle body 110 is provided with the groove 107 of annular; It is outer and coordinate with groove 107 cooling chamber forming airtight annular that outer holster 111 is enclosed within interior rifle body 110; Multiple water-stop sheet 106 is provided with in cooling chamber; Cooling chamber is separated to form the roundabout circulation duct being used for cooling fluid circulation by multiple water-stop sheet 106; One end of circulation duct is provided with water inlet A 1, and the other end is provided with water outlet A 2.
The argon-arc welding gun that the embodiment of the present invention provides, compared with prior art, it comprises interior rifle body 110 and outer holster 111, forms the cooling chamber of airtight annular between interior rifle body 110 and outer holster 111.Multiple water-stop sheet 106 is provided with in this cooling chamber, wherein this cooling chamber is separated into the circulation passage for cooling fluid circulation by multiple water-stop sheet 106, this circulation passage is roundabout in cooling chamber, after then cooling fluid enters from water inlet A 1, along roundabout circulation passage, discharge from water outlet A 2, the path length of cooling fluid in cooling chamber, thus the heat exchanger time added between cooling fluid and argon-arc welding gun, good cooling results.
As shown in Figure 2, water-stop sheet 106 comprises one piece of main water-stop sheet 308 and five pieces of secondary water-stop sheets 303; Six pieces of water-stop sheets annular array in cooling chamber.Particularly, the two ends of main water-stop sheet 308 abut with the two ends air-tightness of groove respectively; In adjacent two pieces of secondary water-stop sheets, one end of one piece of secondary water-stop sheet abuts with one end air-tightness of groove, and the secondary other end of water-stop sheet of another block abuts with the other end air-tightness of groove; Water inlet A 1 and water outlet A 2 are communicated with on the circulation duct of the both sides being positioned at main water-stop sheet 308 respectively.Such as, cooling chamber is separated into six circulation ducts along the axis direction of interior rifle body by six pieces of water-stop sheets, be respectively first-class 301 and the 6th circulation duct 307 of threading a pipe at two articles of circulation ducts of main water-stop sheet 308 both sides, all the other four articles of circulation duct annulars be followed successively by second, third, the 4th and the 5th circulation duct.First-class thread a pipe 301 head end and second thread a pipe 302 head end be communicated with, second thread a pipe 302 tail end be communicated with the tail end of the 3rd circulation duct 304, the head end of the 3rd circulation duct 304 is communicated with the head end of the 4th circulation duct 305, the tail end of the 4th circulation duct 305 is communicated with the tail end of the 5th circulation duct 306, the head end of the 5th circulation duct 306 is communicated with the head end of the 6th circulation duct 307, and water inlet A 1 be positioned at first-class thread a pipe 301 tail end, water outlet A 2 is positioned at the tail end of the 6th circulation duct 307, then cooling fluid enters into after in cooling chamber from water inlet A 1, can along the central axial direction of interior rifle body, reciprocally flow to the other end from one end of cooling chamber, thus add the circulation path of cooling fluid, extend the heat exchanger time of cooling fluid and argon-arc welding gun, improve cooling effect.
Certainly, this water-stop sheet annular can also be arranged in cooling chamber, and it is external that the circulation duct namely formed is spirally coiled in interior rifle, thus makes cooling fluid in cooling chamber's inside spin flowing, increase the flow path of cooling fluid, extend the heat exchanger time of cooling fluid and argon-arc welding gun.
Further, this argon-arc welding gun also comprises tungsten electrode 108 and trombone slide 113; Trombone slide 113 is provided with the air guide chamber 112 along its axis; Air guide chamber 112 one end open, the other end is closed; The afterbody of tungsten electrode 108 is inserted into from one end of opening in air guide chamber 112 and the head of tungsten electrode 108 reaches air guide chamber 112; Air guide chamber 112 is also provided with air inlet B1; Interior rifle body 110 is provided with hollow chamber; Trombone slide 113 to be embedded in hollow chamber and to be coordinated with interior rifle body 110 by spring chuck.Particularly; trombone slide 113 is embedded in the hollow chamber of interior rifle body 110; tungsten electrode 108 is inserted in the air guide chamber 112 of trombone slide 113 simultaneously; argon gas can enter in air guide chamber 112 by air inlet B1; due to the one end open of air guide chamber 112; then argon gas sprays from one end of opening, thus forms protective layer between tungsten electrode and weld seam to be welded, air tungsten oxide pole or metal to be welded when avoiding welding.In addition, tungsten electrode is using meeting for a long time, and the head of tungsten electrode wearing and tearing may occur and the length of argon-arc welding gun is shortened, and because trombone slide can slide in this hollow chamber, namely regulates the extension elongation of tungsten electrode, thus regulates the length of argon-arc welding gun.
Further, the head end of this interior rifle body 110 is provided with end cap 109; This end cap 109 is enclosed within outside tungsten electrode 108, and wherein the head of tungsten electrode 108 reaches outside this end cap 109.Owing to can produce very large heat after tungsten electrode 108 conduction, the heat in order to avoid the generation of this tungsten electrode 108 burns the end of this argon-arc welding gun, and this end cap 109 can be made up of ceramic material, has resistant to elevated temperatures characteristic, thus plays insulation blocking effect to tungsten electrode 108.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an argon-arc welding gun, is characterized in that, comprises interior rifle body, outer holster, fixed axis and rotary sleeve;
It is external that described outer holster is set in described interior rifle;
It is outer and be slidably matched with described fixed axis that described rotary sleeve is enclosed within described fixed axis; The end of described rotary sleeve and the sidewall of described outer holster are fixed;
Slip-ring device is provided with between described rotary sleeve and described outer holster;
Described slip-ring device comprises the carbon brush holder and multiple carbon brush mechanism fixed with described rotary sleeve and described outer holster;
Described carbon brush holder is the cylinder with the first centre bore; Described first centre bore and described fixed axis are slidably matched; Described carbon brush holder is provided with multiple radially extension and the carbon brush chamber be communicated with described first centre bore;
Carbon brush mechanism described in each comprises carbon brush and elastic component; Described carbon brush is electrically connected with described carbon brush holder; Multiple described elastic component coordinates one by one with multiple described carbon brush respectively and applies radial tightening power to each carbon brush; Carbon brush and multiple described carbon brush chamber of multiple described carbon brush mechanism are slidably matched one by one.
2. argon-arc welding gun according to claim 1, is characterized in that, the excircle of described interior rifle body is provided with the groove of annular; It is external and form the cooling chamber of airtight annular with described groove fit that described outer holster is enclosed within described interior rifle;
Multiple water-stop sheet is provided with in described cooling chamber; Described cooling chamber is separated to form the roundabout circulation duct being used for cooling fluid circulation by multiple described water-stop sheet; One end of described circulation duct is provided with water inlet (A1), and the other end is provided with delivery port (A2).
3. argon-arc welding gun according to claim 2, is characterized in that, described water-stop sheet comprises one piece of main water-stop sheet and five pieces of secondary water-stop sheets; Six pieces of described water-stop sheets annular array in described cooling chamber;
The two ends of described main water-stop sheet abut with the two ends air-tightness of described groove respectively; In adjacent two pieces of secondary water-stop sheets, one end of one piece of described secondary water-stop sheet abuts with one end air-tightness of described groove, and the other end of secondary water-stop sheet described in another block abuts with the other end air-tightness of described groove; Described water inlet (A1) is communicated with on the circulation duct of the both sides being positioned at described main water-stop sheet respectively with delivery port (A2).
4. argon-arc welding gun according to claim 3, is characterized in that, also comprises tungsten electrode and trombone slide;
Described trombone slide is provided with the air guide chamber along its axis; Described air guide chamber opening, the other end is closed; The afterbody of described tungsten electrode is inserted into from one end of opening in described air guide chamber and the head of described tungsten electrode reaches described air guide chamber; Described air guide chamber is also provided with air inlet (B1);
Described interior rifle body is provided with hollow chamber; Described trombone slide to be embedded in described hollow chamber and to be coordinated with described interior rifle body by spring chuck.
5. argon-arc welding gun according to claim 4, is characterized in that, the inwall of described rotary sleeve is provided with intake chamber, rhone and air inlet duct;
Described fixed axis is provided with water inlet (C1), delivery port (C2) and air inlet (C3); Described rotary sleeve is provided with water inlet (D1), delivery port (D2) and gas outlet (D3);
The two ends of described intake chamber are communicated with delivery port (D2) with described water inlet (C1) respectively; The two ends of described rhone are communicated with delivery port (C2) with described water inlet (D1) respectively; The two ends of described air inlet duct are communicated with gas outlet (D3) with described air inlet (C3) respectively;
Described gas outlet (D3) is communicated with the air inlet (B1) of described air guide chamber; Described delivery port (C2) is communicated with the water inlet (A1) of described circulation duct; Described water inlet (D1) is communicated with the delivery port (A2) of described circulation duct.
6. argon-arc welding gun according to claim 5, is characterized in that, the equal annular of described intake chamber, rhone and air inlet duct is arranged on the inwall of described rotary sleeve;
Along the axis of described rotary sleeve, the both sides of described intake chamber, rhone and described air inlet duct are provided with seal.
7. argon-arc welding gun according to claim 6, is characterized in that, is provided with along the inlet opening of its axis, osculum and air admission hole in described fixed axis;
The two ends of described inlet opening are communicated with described water inlet (C1) and described intake chamber respectively; The two ends of described osculum are communicated with described delivery port (C2) and described rhone respectively; The two ends of described air admission hole are communicated with described air inlet (C3) and described air inlet duct respectively.
8. argon-arc welding gun according to claim 7, is characterized in that, the end of described carbon brush holder is provided with guide rail; The sidewall of described outer holster is provided with slide block;
Described guide rail coordinates with described skid.
9. argon-arc welding gun according to claim 8, is characterized in that, rotary sleeve is fixed with synchronizing wheel;
Described synchronizing wheel is coaxial with described rotary sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645971.7A CN103600162B (en) | 2013-12-04 | 2013-12-04 | Argon-arc welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645971.7A CN103600162B (en) | 2013-12-04 | 2013-12-04 | Argon-arc welding gun |
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| CN103600162A CN103600162A (en) | 2014-02-26 |
| CN103600162B true CN103600162B (en) | 2016-04-06 |
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| CN201310645971.7A Active CN103600162B (en) | 2013-12-04 | 2013-12-04 | Argon-arc welding gun |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3424633A1 (en) | 2017-07-04 | 2019-01-09 | Fronius International GmbH | Tensioning device for tensioning a welding electrode |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415795A (en) * | 1981-05-12 | 1983-11-15 | Union Carbide Canada Limited | Torch support and height sensor apparatus for shape cutting machines |
| US4656329A (en) * | 1984-09-10 | 1987-04-07 | Moerke Delford A | Rotatable mount providing communication between mounted device and associated utilities |
| US4937417A (en) * | 1987-06-25 | 1990-06-26 | Douglas Call, Jr. | Metal spraying apparatus |
| JP2906914B2 (en) * | 1993-05-14 | 1999-06-21 | 松下電器産業株式会社 | Rotary arc welding equipment |
| CN2212475Y (en) * | 1995-03-08 | 1995-11-15 | 刘永忠 | Combined argon arc welding tongs |
| CN100448586C (en) * | 2005-12-20 | 2009-01-07 | 上海工程技术大学 | Adjustable arc stiffness welding gun |
| CN102248264A (en) * | 2011-07-12 | 2011-11-23 | 茅鹏 | Welding machine with adjustable electric arc energy density |
| CN102814581B (en) * | 2012-08-16 | 2015-07-22 | 上海格瀚斯机械有限公司 | Energy-saving argon tungsten-arc welding assembly with adjustable welding torch |
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