CN203900716U - Lock hole effect TIG deep penetration welding gun - Google Patents
Lock hole effect TIG deep penetration welding gun Download PDFInfo
- Publication number
- CN203900716U CN203900716U CN201420318497.7U CN201420318497U CN203900716U CN 203900716 U CN203900716 U CN 203900716U CN 201420318497 U CN201420318497 U CN 201420318497U CN 203900716 U CN203900716 U CN 203900716U
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- Prior art keywords
- welding
- welding gun
- deep penetration
- electrode tip
- valve
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- Expired - Lifetime
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- 238000003466 welding Methods 0.000 title claims abstract description 130
- 230000035515 penetration Effects 0.000 title claims abstract description 30
- 230000000694 effects Effects 0.000 title claims abstract description 28
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 13
- 239000010937 tungsten Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Arc Welding In General (AREA)
Abstract
The embodiment of the utility model discloses a lock hole effect TIG deep penetration welding gun which comprises a welding gun body. The top of the welding gun body is fixedly connected with a welding gun outer cylinder through a locking nut. A shaft sleeve is mounted in the welding gun outer cylinder. A conducting rod is mounted in the shaft sleeve. The bottom of the conducting rod is connected with an electrode tip through a mounting base. A tungsten electrode is mounted in the electrode tip through a locking locating sleeve and a locating nut. The outer wall of the electrode tip is further provided with an inner sleeve and a first air tap in a sleeved mode. The first air tap is sleeved with a second air tap. The second air tap is connected with the welding gun body through a locking nut. By the adoption of the lock hole effect TIG deep penetration welding gun, deep penetration welding with the lock hole effect can be achieved, and the welding efficiency is greatly improved; meanwhile, even if a welded plate is very thick, the welded plate does not need beveling, and filling of welding wires is not needed either; therefore, welding cost is greatly saved, and huge industrial application value is obtained.
Description
Technical field
The utility model relates to a kind of welding technology field, relates in particular to a kind of lockhole effect TIG deep penetration welding welding gun.
Background technology
TIG welds (Tungsten Inert Gas arc Welding), is called again the protection weldering of inert gas tungsten electrode, and it is a kind of welding method of maturation, at the welding field of carbon steel, stainless steel, aluminium alloy and nonferrous materials, is widely used.Common TIG welding arc stablility, welding quality is good, but its fusion penetration is more shallow, and speed of welding is slower, and efficiency is lower.As for stainless steel or titanium alloy, a general welding penetration maximum can only reach 4mm left and right.Therefore, TIG weldering is generally used for the bottom penetration bead backing welding of plate sheet welding or heavy wall important component.
For middle thickness (>4mm) sheet metal, need to according to actual plate thickness, open in junction the groove 1 of respective angles, and carry out multi-layer multi-pass welding and just can complete, as shown in Figure 1.As square groove, welding whole through weldings just once, thereby greatly improve welding efficiency, significantly reduce the man-hour of steel plate bevel and welding, and can or with filling wlding seldom, will greatly reduce welding cost.Therefore the efficient TIG welding method of, developing large fusion penetration for improving welding efficiency, reduce welding material consumption and have very large benefit.
Form the welding of " lockhole " effect, generally in Laser Welding, electron beam welding and plasma weldering, realize at present.Plasma weldering is the unique arc welding method that can realize " lockhole " effect, but it needs compression arc, and welding energy density is very high, and welding gun design complicated, need to often safeguard, the variation of welding parameters is very sensitive, welding cost is high.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of lockhole effect TIG deep penetration welding welding gun is provided, can realize the deep penetration welding of lockhole effect, welding efficiency is improved greatly, even if simultaneously soldered welding plate is very thick, also without bevel, also without filler wire, thereby greatly saved welding cost, there is huge industrial application value.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of lockhole effect TIG deep penetration welding welding gun, comprises welding gun body, and described welding gun bodies top is fixedly connected with welding gun urceolus by locking nut; In described welding gun urceolus, axle sleeve is housed; In described axle sleeve, conducting rod is housed; The bottom of described conducting rod is connected with electrode tip by mount pad; In described electrode tip, by locking positioning, overlap with setscrew nut tungsten electrode is installed; Described electrode tip outer wall also overlaps inner sleeve and the first valve; Described the first valve overcoat has the second valve; Described the second valve is connected with described welding gun body by locking nut.
For the improvement of technique scheme, described welding gun body, welding gun urceolus, conducting rod, electrode tip and tungsten electrode adopt coaxial configuration.
For the further improvement of technique scheme, described axle sleeve and inner sleeve form inside and outside double-deck circulation channel.
For the further improvement of technique scheme, between described inner sleeve and the first valve, be provided with seal washer.
Implement the utility model embodiment, there is following beneficial effect:
(1) can realize lockhole deep penetration welding;
(2) welding efficiency is high;
(3) saved welding cost;
(4) there is huge industrial application value.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Schematic diagram to cut deal bevel multi-layer multi-pass welding in the prior art that Fig. 1 provides for the utility model embodiment;
The structural representation of a kind of lockhole effect TIG deep penetration welding welding gun that Fig. 2 provides for the utility model embodiment;
The structure cutaway view of a kind of lockhole effect TIG deep penetration welding welding gun that Fig. 3 provides for the utility model embodiment;
Inlet and outlet water and the air inlet schematic diagram of a kind of lockhole effect TIG deep penetration welding welding gun that Fig. 4 provides for the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, describe the utility model in detail, in this illustrative examples of the present utility model and explanation, be used for explaining the utility model, but not as to restriction of the present utility model.
As shown in Figures 2 and 3, lockhole effect TIG deep penetration welding welding gun described in the utility model, comprises welding gun body 1, and described welding gun body 1 top is fixedly connected with welding gun urceolus 2 by locking nut 10; In described welding gun urceolus 2, axle sleeve 3 is housed, described axle sleeve adopts plastic material, as the passage of flow of cooling water; In described axle sleeve 3, conducting rod 4 is housed, the top of described conducting rod 4 is used for connecting external power source, power source is provided to whole welding gun; The bottom of described conducting rod 4 is connected with electrode tip 5 by mount pad 11, and described mount pad 11 is conductive material,, after described conducting rod 4 switches on power, by mount pad 11 and electrode tip 5, connects.In described electrode tip 5 by locking positioning overlap 12 and setscrew nut 13 tungsten electrode 6 is installed, described tungsten electrode 6 adopts overstrikings design, its maximum when welding can be passed through electric current more than 1000A, the axis of the parallel and described welding gun urceolus 2 of its axis.Electrode tip 5 outer walls also overlap inner sleeve 7 and the first valve 8, and described the first valve 8 overcoats have the second valve 9, and described the second valve 9 is connected with described welding gun body 1 by locking nut 10.Wherein, described inner sleeve 7 adopts plastic material too, and described the first valve 8 adopts ceramic material, and the second valve 9 adopts metal or ceramic material.Wherein heat resistance is better for the valve of ceramic material, and the material of the two can be determined according to the actual requirements, if temperature drift in welding process, Ceramics valve is better.
Meanwhile, described welding gun body 1, welding gun urceolus 2, conducting rod 4 and electrode tip 5 adopt the structural design of concentric column, are different from existing like product completely.
In addition, described axle sleeve 3 forms inside and outside double-deck circulation channel with inner sleeve 7, as shown in Figure 3, thereby flows described welding gun is carried out to cooling processing within it for cooling water.
For the improvement of technique scheme, between described inner sleeve 7 and the first valve 8, be provided with seal washer 14, play the effect of better tightness.Sealing packing ring 14 adopts the heat insulation material of high-temperature insulation, such as base human relations organic fiber or ceramic fibre material.
Be more than the structure explanation to lockhole effect TIG deep penetration welding welding gun described in the utility model, now its operation principle specifically described:
Using lockhole effect TIG deep penetration welding welding gun described in the utility model, first need to pass into inert gas-argon gas, argon gas enters in described axle sleeve 3 from the import of protection gas, from the A of the passage at its place, enter, and enter described electrode tip 5 from described axle sleeve 3 with the positioning sleeve B of electrode tip 5, enter after described electrode tip 5, argon gas is divided into two-way: (1) enters described welding gun body 1 inside from the longitudinal hole C of electrode tip 5, described in press fit, remain in its inner air during lockhole effect TIG deep penetration welding welding gun, and from the space ejection between described tungsten electrode 6 and inner sleeve 7, (2) from the space between electrode tip 5 and tungsten electrode 6, arrive the tip of electrode tip 5, and from the aperture ejection of the most advanced and sophisticated surrounding of electrode tip 5, then after the D place of the first valve 8 and the second valve 9 guiding from the most advanced and sophisticated ejection of described welding gun body 1, thereby protection welding arc and molten bath.
Shown in Fig. 4, described lockhole effect TIG deep penetration welding welding gun passes into cooling water, water is from liquid circulation mouth, to enter in axle sleeve 3 under the control of cooling recirculation system and welding system controller from outer tank, from figure, cooling water inlet enters, then in the passage of axle sleeve 3, enter the rear arrival inner sleeve 7 of electrode tip 5, at inner sleeve 7 inner surfaces, form internal layer water circulation a, the outer surface that through hole in inner sleeve 7 arrives inner sleeve 7 forms outer water circulation b, in, outer two-layer water circulation is taken away after the heat at welding gun body 1 most advanced and sophisticated place, successively by electrode tip 5 and axle sleeve 3 reflow tanks.
During welding, conducting rod 4 connecting welding power cathodes, workpiece connecting welding positive source to be welded, electric current arrives electrode tip 5 and tungsten electrode 6 by conducting rod 4, at tip and the surface of the work formation voltage of tungsten electrode 6.When welding starts, by high-frequency arc strike, excite electric arc, in welding process, by the source of welding current, electric current is provided and controls, to maintain welding arc and to produce lockhole effect, more than the maximum weld electric current that lockhole effect TIG deep penetration welding welding gun described in the utility model is passed through can reach 1000A, the carbon steel of through welding 3 ~ 16mm thickness of energy, stainless steel, titanium and alloy thereof, the sheet metal such as zirconium and alloy thereof, it is a kind of Novel welding gun that can realize the welding of lockhole effect, the lockhole of its formation is that " nature " forms, because its electric arc is without compression, main by large electric current formed arc force and liquid metals static pressure, surface tension balance forms.This lockhole is that energy and the pressure of high concentration is formed, and in molten bath, liquid metal stream flows and can not cause metal loss round " lockhole ".The existence of " lockhole " can increase welding penetration widely, is the Perfected process of welding slab, particulate metal.
The utility model lockhole effect TIG deep penetration welding welding gun is to increase wittingly arc pressure by may form the place of hole in bottom, molten bath, these aspect on, the lower surface of workpiece has been worn out in the bottom of electric arc, when heat is inputted enough penetration workpiece, just can form " lockhole ", arc-plasma can gush.Arc pressure by long-range navigation magnetically-actuated acts on arc-plasma, electromagnetization up hill and dale.The energy density of TIG weldering is not enough to produce suitable kickback pressure, therefore, different with electron beam welding lockhole from Laser Welding, and TIG weldering lockhole is long-range navigation magnetically-actuated, integrated kickback pressure and stagnation pressure.
During welding, lockhole must keep open, and arcing gas is through workpiece, so lockhole TIG is that single-run welding completes.Because arcing gas is discharged by back of work, seldom there is molten bath disturbance and pore in welding therefore.Comparing with large electric current general T IG weldering, often there is the defects such as molten bath disturbance, weld seam cavity, vermicular porosity in large electric current TIG, and main cause is the incomplete excretion of arcing gas, by strengthening welding current, just can eliminate these defects.
The technical scheme above the utility model embodiment being provided is described in detail, applied specific case herein the principle of the utility model embodiment and embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, in the specific embodiment and range of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (4)
1. a lockhole effect TIG deep penetration welding welding gun, comprises welding gun body, it is characterized in that:
Described welding gun bodies top is fixedly connected with welding gun urceolus by locking nut;
In described welding gun urceolus, axle sleeve is housed;
In described axle sleeve, conducting rod is housed;
The bottom of described conducting rod is connected with electrode tip by mount pad;
In described electrode tip, by locking positioning, overlap with setscrew nut tungsten electrode is installed;
Described electrode tip outer wall also overlaps inner sleeve and the first valve;
Described the first valve overcoat has the second valve;
Described the second valve is connected with described welding gun body by locking nut.
2. lockhole effect TIG deep penetration welding welding gun according to claim 1, is characterized in that:
Described welding gun body, welding gun urceolus, conducting rod, electrode tip and tungsten electrode adopt coaxial configuration.
3. lockhole effect TIG deep penetration welding welding gun according to claim 1, is characterized in that:
Described axle sleeve and inner sleeve form inside and outside double-deck circulation channel.
4. lockhole effect TIG deep penetration welding welding gun according to claim 1, is characterized in that:
Between described inner sleeve and the first valve, be provided with seal washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318497.7U CN203900716U (en) | 2014-06-13 | 2014-06-13 | Lock hole effect TIG deep penetration welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318497.7U CN203900716U (en) | 2014-06-13 | 2014-06-13 | Lock hole effect TIG deep penetration welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900716U true CN203900716U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318497.7U Expired - Lifetime CN203900716U (en) | 2014-06-13 | 2014-06-13 | Lock hole effect TIG deep penetration welding gun |
Country Status (1)
| Country | Link |
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| CN (1) | CN203900716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195875A (en) * | 2014-06-13 | 2015-12-30 | 广东福维德焊接股份有限公司 | Welding gun of lockhole effect TIG deep penetration welding |
-
2014
- 2014-06-13 CN CN201420318497.7U patent/CN203900716U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195875A (en) * | 2014-06-13 | 2015-12-30 | 广东福维德焊接股份有限公司 | Welding gun of lockhole effect TIG deep penetration welding |
| CN105195875B (en) * | 2014-06-13 | 2018-07-17 | 广东福维德焊接股份有限公司 | Lockhole effect TIG deep penetration welding welding guns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |