CN203830887U - Water-cooled welding gun and welding device using same - Google Patents
Water-cooled welding gun and welding device using same Download PDFInfo
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- CN203830887U CN203830887U CN201420209855.0U CN201420209855U CN203830887U CN 203830887 U CN203830887 U CN 203830887U CN 201420209855 U CN201420209855 U CN 201420209855U CN 203830887 U CN203830887 U CN 203830887U
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- inlet pipe
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Abstract
The utility model provides a water-cooled welding gun. The welding gun comprises an outer sleeve. The outer sleeve is internally provided with an inner sleeve. A water-cooling cavity surrounding the inner sleeve is formed between the outer and inner sleeves. The upper end of the interior of the inner sleeve is provided with a gun core. An insulated sleeve is arranged between the gun core and the inner sleeve. The gun core is internally provided with a first threaded hole. An air chamber is arranged in the gun core at the outside of the first threaded hole. The lower end of the gun core is provided with a contact tube. The contact tube is internally provided with a second threaded hole. A gap cavity is reserved between the contact tube and the inner sleeve. Air holes are formed at the place where the air chamber contacts the gap cavity. The outer sleeve is provided with a water inlet pipe and a water outlet pipe which are communicated with the water cooling cavity. The gun core is provided with an air inlet pipe communicated with the air chamber. The utility model also discloses a welding device using the water-cooled welding gun. According to the utility model, the water-cooled welding gun combines the advantages of a carbon dioxide gas protection welding machine and an argon arc welding machine; the water-cooled welding gun is applicable to welding of workpieces with high thermal conductivity, such as large-thickness pure copper members; and the water-cooled welding gun is high in efficiency, long in service life, and resistant to high temperature.
Description
Technical field
The utility model relates to technical field of welding equipment, specifically a kind of water cooled welding torch and use its welding equipment.
Background technology
During welding, must there is gas butt welded seam to protect, prevent that oxygen or steam from, with weld seam generation chemical reaction, causing weld seam to occur defect.Conventional welding protection gas has carbon dioxide, argon gas and helium.
In steel part welding; the main semi-automatic CO2 shield welder (hereinafter to be referred as two oxygen welding machines) that adopts, the main feature of this welding machine be welding wire be electrode be also welding material, it is 3 centimetres that welding wire stretches out welding gun length; welding wire directly contacts with workpiece, and welding is carried out.Advantage is that welding continuity is strong, fusion penetration good.But its major defect is: carbon dioxide do not have inert gas helium and argon gas strong to the protectiveness of workpiece, welding heat is little, can not the large metal of continuous welding thermal conductivity.
And welding fine copper mainly adopts manual TIG Welding Machine, the feature of this welding machine is that tungsten electrode does not stretch out welding gun, tungsten electrode does not contact workpiece yet, the powerful electric current ionization tungsten electrode producing by tungsten electrode and the gas between workpiece, gas can be conducted electricity and produce huge heat, this heat can melt workpiece and welding rod, and welding is carried out.The advantage of argon arc welding is that heat is concentrated, and gas shield is effective, is applicable to good, the oxidizable workpiece of the such heat conduction of fine copper.That but the shortcoming of argon arc welding is speed is slow, efficiency is low, poor continuity, fusion penetration are little, and welding heat is large, fine copper plate welding current more than thickness 15mm is reached to 400～450A, so must water rifle head is carried out cooling, so just cause welding gun structure complicated.
The thermal conductivity of fine copper is larger more than 7 times than pure iron in the time of 20 ℃, large more than 11 times in the time of 1000 ℃.During welding, heat spreads out of from the thermal treatment zone rapidly, and heated perimeter is expanded, and weld zone is difficult to reach fusion temperature, and mother metal and packing material infusibility close.While coexisting fusion temperature, surface tension is less by 1/3 than pure iron, and mobility is than the large 1-1.5 of pure iron times, so surface forming ability.Some fine copper part thickness is greater than 15mm, and weld seam is darker, and before welding, workpiece must be preheating to 400 ℃, can not use argon arc welding in this case.Because argon arc welding speed is slow, and tungsten electrode do not stretch out welding gun, causes welding gun to contact with workpiece too near, easily roasting bad by hot workpiece.
Therefore need to develop a kind of welding gun of use two oxygen welding machines, and water cooling welding tool, the welding equipment that carries out gas shield with argon gas or helium, to solve the fine copper part Welding Problems that thickness is large, need preheating.
Utility model content
The utility model proposes a kind of water cooled welding torch and use its welding equipment, with solve in prior art thickness large, need the fine copper part of preheating to weld difficult problem.
The technical solution of the utility model is achieved in that
A water cooled welding torch, comprises overcoat, in described overcoat, is provided with inner sleeve, forms the waterway around inner sleeve between described overcoat and inner sleeve; The upper end of described inner sleeve inside is provided with rifle core, between described rifle core and described inner sleeve, is provided with insulation sleeve; Described rifle core inner is provided with first hole, and the rifle core inner in outside, described first hole is provided with air chamber; Described rifle core lower end is provided with ignition tip, and described ignition tip inside is provided with second hole; Between described ignition tip and described inner sleeve, leave spatia, the described air chamber place contacting with this spatia offers pore;
Described outer putting is provided with water inlet pipe and the outlet pipe being communicated with described waterway;
Described rifle core is provided with the air inlet pipe being communicated with described air chamber.
Further, described air chamber is around described first hole, and described pore evenly arranges around described first hole.
Use a welding equipment for aforesaid water cooled welding torch, comprise protection source of the gas, circulating water equipment, power supply and wire feeder; Described protection source of the gas is communicated with the air inlet pipe of described water cooled welding torch; Described circulating water equipment is communicated with water inlet pipe and the outlet pipe of described water cooled welding torch; Described power supply is electrically connected to described air inlet pipe; Described wire feeder is connected with first hole of described water cooled welding torch.
Further, described protection source of the gas is helium source of the gas and argon gas source of the gas, and described helium source of the gas and argon gas source of the gas are communicated with the air inlet pipe of described water cooled welding torch by gas mixing distributor.
Further, described wire feeder is connected by tube connector with first hole of described water cooled welding torch.
The beneficial effects of the utility model are:
1, accelerated the speed of welding, enhanced productivity;
2, with argon gas and helium mix gas, protect, saved the consumption of expensive helium, reduce production costs;
3, equal identical with carbon dioxide gas shielded welding machine of other parts such as wire feeder of welding equipment, high than argon arc welding efficiency, reduced power consumption while therefore welding;
4, water cooled welding torch can at high temperature normally be worked, and has extended the service life of welding gun.
The utility model combines the advantage of carbon dioxide gas shielded welding machine and argon arc welding machine, can be applicable to the high workpiece welding of the thermal conductivitys such as fine copper part of large thickness, and efficiency is high, high temperature resistant, the life-span is long.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of an embodiment of water cooled welding torch of the present utility model;
Fig. 2 is the part exploded perspective view of embodiment in Fig. 1;
Fig. 3 is along the schematic cross-section of the axis direction of air inlet pipe, water inlet pipe and outlet pipe in Fig. 1;
Fig. 4 is the part exploded perspective view of rifle core in Fig. 2;
Fig. 5 is the exploded perspective view of jacket and inner sleeve in Fig. 2;
Fig. 6 is along the schematic cross-section of the axis direction of water inlet pipe and outlet pipe after the combination of jacket and inner sleeve in Fig. 2;
Fig. 7 is the structural representation of an embodiment of welding equipment of the present utility model;
Fig. 8 is the syndeton schematic diagram of water cooled welding torch and tube connector.
In figure:
1, back-up ring; 2, ignition tip; 3, overcoat; 4, inner sleeve; 5, outlet pipe; 6, insulation sleeve; 7, rifle core; 71, upper; 72, lower; 73, connecting hole; 74, through hole; 8, air inlet pipe; 9, holding screw; 10, water inlet pipe; 11, first hole; 12, air chamber; 13, waterway; 14, second hole; 15, spatia; 16, protection source of the gas; 161, helium source of the gas; 162, argon gas source of the gas; 163, gas mixing distributor; 17, circulating water equipment; 18, wire feeder; 19, tube connector; 20, pore; 21, fine copper welding wire; 22, power supply; 23, pneumoelectric joint.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-3, the water cooled welding torch in the present embodiment, comprises overcoat 3, in described overcoat 3, is provided with inner sleeve 4, and described overcoat 3 welds together with inner sleeve 4, forms the waterway 13 around inner sleeve 4 between described overcoat 3 and inner sleeve 4, please refer to Fig. 5 and Fig. 6; Described inner sleeve 4 lower ends are provided with a back-up ring 1; The upper end of described inner sleeve 4 inside is provided with rifle core 7, between described rifle core 7 and described inner sleeve 4, be provided with insulation sleeve 6, the effect of insulation sleeve 6 is to prevent overcoat 3 conductions, so both avoided the company's of generation electricity between overcoat 3 and workpiece, also avoided operator that Danger Electric shock risk occurs, described insulation sleeve 6 is fixing by holding screw 9 with overcoat 3; Described rifle core 7 inside are provided with first hole 11, in rifle core 7 inside of 11 outsides, described first hole, are provided with air chamber 12; Described rifle core 7 lower ends are provided with ignition tip 2, and ignition tip 2 is threaded connection with rifle core 7, and ignition tip 2 is chromium zirconium copper product with rifle core 7 and makes, and has the feature high temperature resistant, conductance is high, and described ignition tip 2 inside are provided with second hole 14; Between described ignition tip 2 and described inner sleeve 4, leave spatia 15, described air chamber 12 places that contact with this spatia 15 offer pore 20; Described overcoat 3 is provided with water inlet pipe 10 and the outlet pipe 5 being communicated with described waterway 13; Described rifle core 7 is provided with the air inlet pipe 8 being communicated with described air chamber 12, and air inlet pipe 8 welds together with rifle core 7, and in the present embodiment, air inlet pipe 8 is made for fine copper, is the air inlet pipe 8 of protective gas, is also the contact tube being connected with power supply 22.
As shown in Figure 4, in the present embodiment, rifle core 7 by upper 71 and lower 72 two parts form, upper 71 connecting holes 73 that are provided with air inlet pipe 8, air inlet pipe 8 is welded on this connecting hole 73 places; There is a through hole 74 for lower 72, upper 71 be arranged in this through hole 74, upper 71 with lower 72 form air chamber 12; Described first hole 11 is positioned at 71 inside; Described air chamber 12 is around described first hole 11; described pore 20 uniform ring are set around around described through hole 74; protective gas is sprayed equably; in ignition tip 2 surroundings, form the uniform gas shield cover of one deck; play the effect of protection weld seam, in the present embodiment, had the pore 20 that 12 diameters are 1.5mm.
In order to reach good water-cooled effect, in the present embodiment, the material of overcoat 3, inner sleeve 4, water inlet pipe 10 and outlet pipe 5 is fine copper.
As shown in Figure 7, a kind of welding equipment that uses aforesaid water cooled welding torch, comprises protection source of the gas 16, circulating water equipment 17, power supply 22 and wire feeder 18; Described protection source of the gas 16 is communicated with the air inlet pipe 8 of described water cooled welding torch; Described circulating water equipment 17 is communicated with water inlet pipe 10 and the outlet pipe 5 of described water cooled welding torch; Described power supply 22 is electrically connected to described air inlet pipe 8; Described wire feeder 18 is connected with first hole 11 of described water cooled welding torch.In the present embodiment, air inlet pipe 8 is connected with power supply 22 with protection source of the gas 16 by pneumoelectric joint 23.
In the present embodiment, described protection source of the gas 16 is helium source of the gas 161 and argon gas source of the gas 162, and described helium source of the gas 161 and argon gas source of the gas 162 are communicated with the air inlet pipe 8 of described water cooled welding torch by gas mixing distributor 163.Argon gas and helium mix in the ratio of 2:1, adopt high-purity helium, and purity reaches 99.9%.Gas mixing distributor 163 has guaranteed the proportioning ratio of mist and stable flow, and model is HA21.
Described wire feeder 18 is connected by tube connector 19 with first hole 11 of described water cooled welding torch, please refer to Fig. 8.
During the present embodiment work, adopting wire feeder 18 is water cooled welding torch wire feed, adopts fine copper welding wire 21 in the present embodiment, and the welding wire trade mark is HS201, and diameter is 1.5mm.Welding wire enters first hole 11, second hole 14 successively through tube connector 19; Protection source of the gas 16 is filled with protective gas by air inlet pipe 8 to air chamber 12, and protective gas enters spatia 15 by pore 20 and forms one deck protection gas around at ignition tip 2; This air inlet pipe 8 is also as contact tube simultaneously, by power delivery to rifle core 7 and ignition tip 2, to weld; Circulating water equipment 17 is water cooled welding torch cooling down by water inlet pipe 10, waterway 13 and outlet pipe 5.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a water cooled welding torch, is characterized in that, comprises overcoat, in described overcoat, is provided with inner sleeve, forms the waterway around inner sleeve between described overcoat and inner sleeve; The upper end of described inner sleeve inside is provided with rifle core, between described rifle core and described inner sleeve, is provided with insulation sleeve; Described rifle core inner is provided with first hole, and the rifle core inner in outside, described first hole is provided with air chamber; Described rifle core lower end is provided with ignition tip, and described ignition tip inside is provided with second hole; Between described ignition tip and described inner sleeve, leave spatia, the described air chamber place contacting with this spatia offers pore;
Described outer putting is provided with water inlet pipe and the outlet pipe being communicated with described waterway;
Described rifle core is provided with the air inlet pipe being communicated with described air chamber.
2. a kind of water cooled welding torch as claimed in claim 1, is characterized in that, described air chamber is around described first hole, and described pore evenly arranges around described first hole.
3. right to use requires a welding equipment for the water cooled welding torch described in 1 or 2, it is characterized in that, comprises protection source of the gas, circulating water equipment, power supply and wire feeder; Described protection source of the gas is communicated with the air inlet pipe of described water cooled welding torch; Described circulating water equipment is communicated with water inlet pipe and the outlet pipe of described water cooled welding torch; Described power supply is electrically connected to described air inlet pipe; Described wire feeder is connected with first hole of described water cooled welding torch.
4. a kind of welding equipment as claimed in claim 3, is characterized in that, described protection source of the gas is helium source of the gas and argon gas source of the gas, and described helium source of the gas and argon gas source of the gas are communicated with the air inlet pipe of described water cooled welding torch by gas mixing distributor.
5. a kind of welding equipment as claimed in claim 3, is characterized in that, described wire feeder is connected by tube connector with first hole of described water cooled welding torch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209855.0U CN203830887U (en) | 2014-04-25 | 2014-04-25 | Water-cooled welding gun and welding device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209855.0U CN203830887U (en) | 2014-04-25 | 2014-04-25 | Water-cooled welding gun and welding device using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830887U true CN203830887U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420209855.0U Expired - Fee Related CN203830887U (en) | 2014-04-25 | 2014-04-25 | Water-cooled welding gun and welding device using same |
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| Country | Link |
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| CN (1) | CN203830887U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607777A (en) * | 2015-01-21 | 2015-05-13 | 中国船舶重工集团公司第七二五研究所 | Welding shielding gas alternating gas supply system |
| CN109365968A (en) * | 2018-11-08 | 2019-02-22 | 九江海天设备制造有限公司 | A kind of gas metal-arc welding water-cooled nozzle |
| CN114619125A (en) * | 2022-05-17 | 2022-06-14 | 徐州玉伟机械设备有限公司 | Welding equipment for machining mechanical parts based on coating without coating |
-
2014
- 2014-04-25 CN CN201420209855.0U patent/CN203830887U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607777A (en) * | 2015-01-21 | 2015-05-13 | 中国船舶重工集团公司第七二五研究所 | Welding shielding gas alternating gas supply system |
| CN109365968A (en) * | 2018-11-08 | 2019-02-22 | 九江海天设备制造有限公司 | A kind of gas metal-arc welding water-cooled nozzle |
| CN114619125A (en) * | 2022-05-17 | 2022-06-14 | 徐州玉伟机械设备有限公司 | Welding equipment for machining mechanical parts based on coating without coating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |