CN2897524Y - High-pressure cyclone double-layer gas protection welding gun - Google Patents
High-pressure cyclone double-layer gas protection welding gun Download PDFInfo
- Publication number
- CN2897524Y CN2897524Y CN 200620018050 CN200620018050U CN2897524Y CN 2897524 Y CN2897524 Y CN 2897524Y CN 200620018050 CN200620018050 CN 200620018050 CN 200620018050 U CN200620018050 U CN 200620018050U CN 2897524 Y CN2897524 Y CN 2897524Y
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- China
- Prior art keywords
- tungsten electrode
- double layer
- high pressure
- nozzle
- internal layer
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- Expired - Lifetime
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Abstract
The utility model provides a high-pressure swirl double layer gas- protected welding torch, which comprises a body equipped with a tungsten electrode jaw square cavity in the center, an outer inlet duct connected to the sidewall of the body, a double layer nozzle connected to the lower body and composed of an outer nozzle equipped with whirl fluid and a inner nozzle, an outer gas inlet pipeline connecting the outer gas inlet pipe and the outer nozzle arranged in the body, a tungsten electrode jaw arranged in the square cavity and the bottom positioned at the upper part of the inner nozzle of the double layer nozzle, a tungsten electrode fixed in the tungsten electrode jaw and the head extended downward to the double layer nozzle, a inner gas intake pipeline connected with the upper body and connected to the tungsten electrode jaw square cavity. The utility model introduces the welding protected gas from two different inlet pipes respectively and realizes the stratified flow of the inner and outer gas by the double layer nozzle.
Description
Technical field
The utility model relates to welding field, particularly relates to a kind ofly can making the ectonexine air-flow high pressure cyclone double layer gas protective welding gun of laminar flow better.
Background technology
(the English full name of TIG welding is " Tungsten inert gas welding " for deep water TIG welding, Chinese is " tungsten argon arc welding "), adopt argon (Ar) arc-welding, help the carrying out of welding, but, argon (Ar) anesthesia problem also appears in welding process easily.The sixties in 20th century, the method that has just begun to occur the Double-layer Gas Shielded Arc Welding welding, the appearance of this kind method mainly is in order to solve the more undesirable and gas price of the arc characteristic that exists in the inert gas-shielded arc welding process than problems such as height.Its principle is that the individual layer nozzle with common welding torch changes two-layer concentric nozzles into, makes inert gas and another kind of cheap protective gas respectively by the inner and outer nozzles ejection, and two-layer gas keeps laminar flow.And, adopt the double-layer air-flow protection of internal layer argon (Ar), outer other gases during welding by adopting this kind Double-layer Gas Shielded Arc Welding, might when guaranteeing welding, reduce argon (Ar) consumption, thereby can effectively solve the problem of argon (Ar) anesthesia.But the inside and outside layer gas of this traditional double-layer air-flow protection welding gun all is the axis laminar condition, for keeping this state, requires the strict coupling of inside and outside layer gas flow, and the speed of promptly two-layer air-flow when jetting nozzle should keep close.In addition, because axis laminar flow retentivity is poor, a little less than the antijamming capability, require nozzle to remain unchanged apart from the distance of workpiece, therefore can only be used for welding automatically and can not be used for manual welding or semi-automatic welding.So the application of traditional double-layer air-flow protection welding gun is restricted.
The utility model content
The purpose of this utility model provide a kind of simple in structure, easy to use, can make the ectonexine air-flow high pressure cyclone double layer gas protective welding gun of laminar flow better.
For achieving the above object, the utility model is taked technical scheme: a kind of high pressure cyclone double layer gas protective welding gun, and it includes: a body, its central authorities are provided with a tungsten electrode card mouth containing cavity; One outer air induction conduit, its connection are arranged on the sidewall of described body; The pair of lamina nozzle, its connection is arranged on the bottom of described body, and this bilayer nozzle includes an outer jet pipe and is set in the interior internal layer jet pipe of outer jet pipe, is provided with a rotary fluid in this skin jet pipe; Be provided with the outer gas piping of an outer air induction conduit of connection and outer jet pipe in the described body; One tungsten electrode Ka Zui, it is arranged in the tungsten electrode card mouth containing cavity of described body, and the bottom of this tungsten electrode Ka Zui is positioned at the top of the internal layer jet pipe of described double-deck nozzle; One tungsten electrode, it is fixedly installed in the described tungsten electrode card mouth, and the head of this tungsten electrode extends double-deck nozzle downwards; One internal layer air inlet pipe, its connection is arranged on described upper part of body, and this internal layer air inlet pipe is communicated with the inner chamber of described tungsten electrode Ka Zui.
In practical operation, offer groove on the sidewall of described tungsten electrode Ka Zui, and the bottom of tungsten electrode Ka Zui also offers groove.Described rotary fluid is annulus or hollow cylinder, and its outer surface is offered multi-head spiral groove.
In addition, described upper part of body is provided with a swivel nut, and the top connection of this swivel nut is provided with described internal layer air inlet pipe, and the outer wall on described tungsten electrode Ka Zui top is close to the inwall that is arranged on this swivel nut.
In the above-mentioned high pressure cyclone double layer gas protective welding gun, the outer setting of described outer air induction conduit and body has an insulating barrier.The outside of described internal layer air induction conduit bottom also is provided with an insulating barrier.
The utility model is owing to take above design, and it has the following advantages:
1, the utility model imports protection-gas welding respectively from two different air inlet pipelines, then by the effect of double-deck nozzle, realizes the laminar flow of inside and outside layer gas.Outer gas is behind the rotary fluid at outer jet pipe place of flowing through, and formation has the rotating jet of axial velocity and tangential velocity simultaneously, thereby impels inside and outside air-flow laminar flow better.The utility model effectively improves the axis laminar flow retentivity of double-deck gas, strengthens antijamming capability, makes welding become more flexible.
2, the high pressure cyclone double layer gas protective welding gun that provides of the utility model can limit the rising speed of argon (Ar) dividing potential drop in the high pressure welding chamber, this is because the individual layer gas protective welding gun has only one deck nozzle, argon (Ar) is simultaneously as arc atmosphere and protective atmosphere, flow is bigger, and argon (Ar) dividing potential drop gathers way comparatively fast in the welding chamber; Double layer gas protective welding gun of the present utility model is provided with the outer two-layer nozzle of internal layer, and internal layer adopts argon (Ar) as arc atmosphere, makes electric arc have the argon arc characteristic, and the gas of outer other kinds is isolated wet gas in the welding chamber as protective atmosphere.Under the essentially identical situation of total flow, adopt double layer gas protective welding gun, interior argon (Ar) dividing potential drop of welding chamber gathers way slower, can effectively solve the striking problem in the gases at high pressure and can effectively reduce the tungsten electrode scaling loss.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of tungsten electrode Ka Zui in the utility model
Fig. 3 is the structural representation of rotary fluid in the utility model
The specific embodiment
At first as shown in Figure 1, be a kind of high pressure cyclone double layer gas protective welding gun provided by the utility model, it mainly includes:
One body 1, its central authorities are provided with one tungsten electrode card mouth containing cavity 11;
One outer air induction conduit 2, its connection is arranged on the sidewall of body 1;
Pair of lamina nozzle 3, its connection is arranged on the bottom of body 1, and double-deck nozzle 3 includes an outer jet pipe 31 and is set in the interior internal layer jet pipe 32 of outer jet pipe, is provided with a rotary fluid 33 in this skin jet pipe 31; In addition, be provided with the outer gas piping 12 of outer air induction conduit 2 of a connection and outer jet pipe 31 in the body 1;
One tungsten electrode card mouth 4, it is arranged in the tungsten electrode card mouth containing cavity 11 of body 1, and the bottom of tungsten electrode card mouth 4 is positioned at the top of the internal layer jet pipe 32 of double-deck nozzle 3;
One tungsten electrode 5, it is fixedly installed in the tungsten electrode card mouth 4, and the head of tungsten electrode 5 extends double-deck nozzle 3 downwards;
One internal layer air inlet pipe 6, its connection is arranged on the top of body 1, and internal layer air inlet pipe 6 is communicated with the inner chamber of tungsten electrode card mouth 4.
Cooperate Fig. 1, shown in Figure 2, offer groove 41 on the sidewall of tungsten electrode card mouth 4 in the utility model, and the bottom of tungsten electrode card mouth 4 also offers groove 42.Like this; the internal layer protective gas enters the inner chamber 43 of tungsten electrode card mouth 4 through internal layer air induction conduit 6; enter the tungsten electrode card mouth containing cavity 11 of body then by the groove 41 on the tungsten electrode card mouth 4; and then enter the internal layer jet pipe 32 of double-deck nozzle via the groove 42 that tungsten electrode card mouth 4 bottoms are offered, at last by 32 ejections of internal layer jet pipe.
In addition, the excellent sealing when guaranteeing the air inlet of internal layer protective gas, the special swivel nut 13 that is provided with on the top of body 1, the top of this swivel nut 13 connects described internal layer air inlet pipe 6 is set, and the outer wall on tungsten electrode card mouth 4 tops is close to the inwall that is arranged on swivel nut 13.Like this, just can guarantee that internal layer protective gas that internal layer air inlet pipe 6 is provided enters into the inner chamber of tungsten electrode card mouth 4 fully, and not to external leakage.
Cooperate Fig. 1, shown in Figure 3, the rotary fluid 33 in the present embodiment is annulus or hollow cylinder, and its outer surface is offered multi-head spiral groove 331.
In order to guarantee the safety of operating personnel when using the utility model, present embodiment has an insulating barrier 7 in the outer setting of outer air induction conduit 2 and body 1 especially; And the outside of internal layer air induction conduit 6 bottoms also is provided with an insulating barrier 8.The material of this insulating barrier 7,8 can use ambroin, such as BMC unsaturated polyester (UP) resin moulding compound, DMC unsaturated polyester (UP) resin moulding compound.
The utility model when in use, gas circuit two-layerly is made of inside and outside, the internal layer air induction conduit 6 general argon gas (Ar) that import of internal layer gas circuit, the outer air induction conduit 2 general CO that import of outer gas circuit
2Etc. cheap gas.After internal layer gas passes through the inner chamber, tungsten electrode card mouth containing cavity 11, internal layer jet pipe 32 of internal layer air induction conduit 6, swivel nut 13, tungsten electrode card mouth 4 successively, and finally by 32 ejections of internal layer jet pipe; After outer gas passed through outer air induction conduit 2, outer gas piping 12 successively, by rotary fluid 33, because the effect of rotary fluid 33, outer gas was behind the rotary fluid 33 of flowing through, and effluent air becomes the rotating jet that has axial velocity and tangential velocity simultaneously.Because rotating jet has good retentivity, so the inside and outside layer air-flow that impels double-deck nozzle 3 places laminar flow better guarantees normally carrying out of welding.
Claims (10)
1, a kind of high pressure cyclone double layer gas protective welding gun is characterized in that, it includes:
One body, its central authorities are provided with a tungsten electrode card mouth containing cavity;
One outer air induction conduit, its connection are arranged on the sidewall of described body;
The pair of lamina nozzle, its connection is arranged on the bottom of described body, and this bilayer nozzle includes an outer jet pipe and is set in the interior internal layer jet pipe of outer jet pipe, is provided with a rotary fluid in this skin jet pipe; Be provided with the outer gas piping of an outer air induction conduit of connection and outer jet pipe in the described body;
One tungsten electrode Ka Zui, it is arranged in the tungsten electrode card mouth containing cavity of described body, and the bottom of this tungsten electrode Ka Zui is positioned at the top of the internal layer jet pipe of described double-deck nozzle;
One tungsten electrode, it is fixedly installed in the described tungsten electrode card mouth, and the head of this tungsten electrode extends double-deck nozzle downwards;
One internal layer air inlet pipe, its connection is arranged on described upper part of body, and this internal layer air inlet pipe is communicated with the inner chamber of described tungsten electrode Ka Zui.
2, high pressure cyclone double layer gas protective welding gun according to claim 1 is characterized in that: offer groove on the sidewall of described tungsten electrode Ka Zui, and the bottom of tungsten electrode Ka Zui also offers groove.
3, high pressure cyclone double layer gas protective welding gun according to claim 1 is characterized in that: described rotary fluid is annulus or hollow cylinder, and its outer surface is offered multi-head spiral groove.
4, high pressure cyclone double layer gas protective welding gun according to claim 2 is characterized in that: described rotary fluid is annulus or hollow cylinder, and its outer surface is offered multi-head spiral groove.
5, according to claim 1 or 2 or 3 or 4 described high pressure cyclone double layer gas protective welding guns; it is characterized in that: described upper part of body is provided with a swivel nut; the top connection of this swivel nut is provided with described internal layer air inlet pipe, and the outer wall on described tungsten electrode Ka Zui top is close to the inwall that is arranged on this swivel nut.
6, according to claim 1 or 2 or 3 or 4 described high pressure cyclone double layer gas protective welding guns, it is characterized in that: the outer setting of described outer air induction conduit and body has an insulating barrier.
7, high pressure cyclone double layer gas protective welding gun according to claim 5 is characterized in that: the outer setting of described outer air induction conduit and body has an insulating barrier.
8, according to claim 1 or 2 or 3 or 4 or 7 described high pressure cyclone double layer gas protective welding guns, it is characterized in that: the outer setting of described internal layer air induction conduit bottom has an insulating barrier.
9, high pressure cyclone double layer gas protective welding gun according to claim 5 is characterized in that: the outer setting of described internal layer air induction conduit bottom has an insulating barrier.
10, high pressure cyclone double layer gas protective welding gun according to claim 6 is characterized in that: the outer setting of described internal layer air induction conduit bottom has an insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018050 CN2897524Y (en) | 2006-03-29 | 2006-03-29 | High-pressure cyclone double-layer gas protection welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620018050 CN2897524Y (en) | 2006-03-29 | 2006-03-29 | High-pressure cyclone double-layer gas protection welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2897524Y true CN2897524Y (en) | 2007-05-09 |
Family
ID=38072864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620018050 Expired - Lifetime CN2897524Y (en) | 2006-03-29 | 2006-03-29 | High-pressure cyclone double-layer gas protection welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2897524Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733522B (en) * | 2009-12-07 | 2012-04-25 | 昆山华恒工程技术中心有限公司 | Small-bore TIG (tungsten inert gas) surfacing torch |
| CN104254425A (en) * | 2012-04-18 | 2014-12-31 | 村田彰久 | Constricting nozzle and tig welding torch using same |
| CN104439647A (en) * | 2014-11-07 | 2015-03-25 | 太原理工大学 | TIG welding double-layer air flow protection device for ferrite steel and welding method |
| CN104475943A (en) * | 2014-12-22 | 2015-04-01 | 威海石岛重工有限公司 | Small-diameter inner wall-surfacing torch head |
| 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 |
| CN109604786A (en) * | 2019-01-18 | 2019-04-12 | 上海交通大学 | Robot swings narrow clearance melting electrode double-layer gas shield automatic welding gun with electric arc |
-
2006
- 2006-03-29 CN CN 200620018050 patent/CN2897524Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733522B (en) * | 2009-12-07 | 2012-04-25 | 昆山华恒工程技术中心有限公司 | Small-bore TIG (tungsten inert gas) surfacing torch |
| CN104254425A (en) * | 2012-04-18 | 2014-12-31 | 村田彰久 | Constricting nozzle and tig welding torch using same |
| CN104254425B (en) * | 2012-04-18 | 2017-03-22 | 村田彰久 | Constricting nozzle and tig welding torch using same |
| 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 |
| CN104439647A (en) * | 2014-11-07 | 2015-03-25 | 太原理工大学 | TIG welding double-layer air flow protection device for ferrite steel and welding method |
| CN104475943A (en) * | 2014-12-22 | 2015-04-01 | 威海石岛重工有限公司 | Small-diameter inner wall-surfacing torch head |
| CN109604786A (en) * | 2019-01-18 | 2019-04-12 | 上海交通大学 | Robot swings narrow clearance melting electrode double-layer gas shield automatic welding gun with electric arc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090617 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |