CN204934835U - A kind of additional gas protective device of pipe-pipe sheet welding gun - Google Patents
A kind of additional gas protective device of pipe-pipe sheet welding gun Download PDFInfo
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- CN204934835U CN204934835U CN201520542308.9U CN201520542308U CN204934835U CN 204934835 U CN204934835 U CN 204934835U CN 201520542308 U CN201520542308 U CN 201520542308U CN 204934835 U CN204934835 U CN 204934835U
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- protective device
- additional gas
- isocon
- gas protective
- outer casing
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Abstract
The utility model discloses the additional gas protective device providing a kind of pipe-pipe sheet welding gun, described additional gas protective device is fixedly connected with argon arc welding machine gun head, this additional gas protective device comprises: inner can, is set in the outside of described argon arc welding machine gun head; Outer casing, is set in the outside of described inner can; Side case, connects inner can and outer casing, respectively to make to form a semi-enclosed cavity between described inner can and outer casing; Gas tube, through described side case, one end is arranged in cavity, and the other end connects argon gas source of the gas by gas conduit; Isocon, in semiclosed circular, is arranged in described cavity, encircles described inner can, its one end open, and the other end is closed, and wherein openend is connected with described gas tube, and described isocon is provided with several apertures.The utility model has second protection effect, and apparatus structure is simple, and installation fixed form is easy, and it is convenient to dismantle, and effectively can improve welding quality.
Description
Technical field
The utility model relates to welding technique field, is specifically related to a kind of additional gas protective device of pipe-pipe sheet welding gun.
Background technology
Nuclear steam generator or chemical industry heat exchange equipment have the seal welding structure of tube sheet and heat exchanger tube; heat exchange tube material is stainless steel or nickel-base alloy; nickel alloy cladding layer on exchanger tubes and tubesheets carries out fillet welding; welding method is argon tungsten-arc welding; current argon arc welding nozzle generally all adopts single operator guards, affects welding quality.
Utility model content
The purpose of this utility model is to provide; the utility model provides a kind of additional gas protective device of pipe-pipe sheet welding gun; be suitable in the welding procedure of the easy high-temperature oxydation metals such as nickel-base alloy; there is second protection effect; apparatus structure is simple; installation fixed form is easy, and it is convenient to dismantle, and effectively can improve welding quality.
In order to achieve the above object; the utility model is achieved through the following technical solutions: a kind of additional gas protective device of pipe-pipe sheet welding gun; described additional gas protective device is fixedly connected with argon arc welding machine gun head, is characterized in, this additional gas protective device comprises:
Inner can, is set in the outside of described argon arc welding machine gun head;
Outer casing, is set in the outside of described inner can;
Side case, connects inner can and outer casing, respectively to make to form a semi-enclosed cavity between described inner can and outer casing;
Gas tube, through described side case, one end is arranged in cavity, and the other end connects argon gas source of the gas by gas conduit;
Isocon, in semiclosed circular, is arranged in described cavity, encircles described inner can, its one end open, and the other end is closed, and wherein openend is connected with described gas tube, and described isocon is provided with several apertures.
Described additional gas protective device also comprises a sintered meshwork, and in closed circular ring-type, its inner-diameter end is connected with described inner can, and its external diameter end is connected with described outer casing.
The side of described side case is also fixed with the fixed structure for connecting isocon.
Described sintered meshwork is copper mesh.
Described sintered meshwork is stainless (steel) wire.
On described isocon, described isocon circumference is divided equally by several apertures.
When welding workpiece to be welded, the distance between described outer casing and workpiece to be welded is less than the distance between described inner can and workpiece to be welded.
Described fixed structure is a back-up block, and described back-up block one end is fixedly connected with described side case, and the other end is conflicted described isocon.
The additional gas protective device of a kind of pipe-pipe sheet welding gun of the utility model compared with prior art has the following advantages: owing to being provided with isocon and sintered meshwork, effectively improve gas laminar flow, protected effect can obviously improve, be applicable to the argon tungsten-arc welding of the easy oxidation metals such as nickel-base alloy, welding quality is high; Because isocon is provided with several apertures, be convenient to argon gas and flow out uniformly, apparatus structure is simple, and fixed form is easy, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the additional gas protective device of a kind of pipe-pipe sheet welding gun of the utility model;
Fig. 2 is the connection diagram of isocon and gas tube;
Fig. 3 is isocon overall structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figure 1, a kind of additional gas protective device of pipe-pipe sheet welding gun, described additional gas protective device is fixedly connected with argon arc welding machine gun head 100, the utility model increases a larger-size nozzle casing in the outer surrounding of current existing common argon tungsten-arc welding nozzle, this additional gas protective device comprises: inner can 200, is set in the outside of described argon arc welding machine gun head 100; Outer casing 300, is set in the outside of described inner can 200; Side case 400, connects inner can 200 and outer casing 300, respectively to make to form a semi-enclosed cavity 500 between described inner can 200 and outer casing 300; Gas tube 600, through described side case 400, one end is arranged in cavity 500, and the other end connects argon gas source of the gas by gas conduit; Isocon 700, as shown in Figures 2 and 3, in semiclosed circular, be arranged in described cavity 500, encircle described inner can 200, its one end open, the other end is closed, and wherein openend is connected with described gas tube 600, and described isocon 700 is provided with several apertures 701, preferably, described isocon 700 circumference is divided equally by several apertures 701.
In other embodiment, as shown in Figure 1, additional gas protective device also comprises a sintered meshwork 800, and in closed circular ring-type, its inner-diameter end is connected with described inner can 200, and its external diameter end is connected with described outer cover 300 shell.Preferably, described sintered meshwork 800 is copper mesh or stainless (steel) wire.
As shown in Figure 3, in the present embodiment, preferably, the side of described side case 400 is also fixed with the fixed structure 401 for connecting isocon 700, preferably, described fixed structure 401 is a back-up block, and described back-up block one end is fixedly connected with described side case 400, and the other end is conflicted described isocon 700.
In the present embodiment, preferably, when welding workpiece 900 to be welded, the distance between described outer casing 300 and workpiece to be welded 900 is less than the distance between described inner can 200 and workpiece to be welded 900.
Embody rule: when treating welder's part 900 and welding; whole additional gas protective device of the present utility model is enclosed within corresponding original pipe-pipe plate argon welder rifle head 100; and outer casing 300 and workpiece 100 surface to be welded are adjacent to, inner can 200 and argon arc welding machine gun head 100 surface are adjacent to.Gas tube 600 is connected with gas conduit, communicates with argon gas source of the gas, passes into the argon gas of certain flow.After argon gas is shunted by isocon 700, then flowed out by sintered meshwork 800, gas uniform must protect welding region, and improves the effect of gas laminar flow.Isocon 700 is connected with side case 400 by fixed structure 401 and is fixed supporting, and one end of isocon 700 is connected with gas tube 600, and the other end is closed.The first half of isocon 700 has several apertures 701 equally distributed, so that the outflow of gas uniform.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (8)
1. an additional gas protective device for pipe-pipe sheet welding gun, described additional gas protective device is fixedly connected with argon arc welding machine gun head, it is characterized in that, this additional gas protective device comprises:
Inner can, is set in the outside of described argon arc welding machine gun head;
Outer casing, is set in the outside of described inner can;
Side case, connects inner can and outer casing, respectively to make to form a semi-enclosed cavity between described inner can and outer casing;
Gas tube, through described side case, one end is arranged in cavity, and the other end connects argon gas source of the gas by gas conduit;
Isocon, in semiclosed circular, is arranged in described cavity, encircles described inner can, its one end open, and the other end is closed, and wherein openend is connected with described gas tube, and described isocon is provided with several apertures.
2. additional gas protective device as claimed in claim 1, it is characterized in that, comprise a sintered meshwork further, in closed circular ring-type, its inner-diameter end is connected with described inner can, and its external diameter end is connected with described outer casing.
3. additional gas protective device as claimed in claim 1 or 2, the side of described side case is also fixed with the fixed structure for connecting isocon.
4. additional gas protective device as claimed in claim 2, it is characterized in that, described sintered meshwork is copper mesh.
5. additional gas protective device as claimed in claim 2, it is characterized in that, described sintered meshwork is stainless (steel) wire.
6. additional gas protective device as claimed in claim 3, it is characterized in that, on described isocon, described isocon circumference is divided equally by several apertures.
7. additional gas protective device as claimed in claim 3, is characterized in that, when welding workpiece to be welded, the distance between described outer casing and workpiece to be welded is less than the distance between described inner can and workpiece to be welded.
8. additional gas protective device as claimed in claim 3, it is characterized in that, described fixed structure is a back-up block, and described back-up block one end is fixedly connected with described side case, and the other end is conflicted described isocon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542308.9U CN204934835U (en) | 2015-07-24 | 2015-07-24 | A kind of additional gas protective device of pipe-pipe sheet welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542308.9U CN204934835U (en) | 2015-07-24 | 2015-07-24 | A kind of additional gas protective device of pipe-pipe sheet welding gun |
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| Publication Number | Publication Date |
|---|---|
| CN204934835U true CN204934835U (en) | 2016-01-06 |
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| CN201520542308.9U Active CN204934835U (en) | 2015-07-24 | 2015-07-24 | A kind of additional gas protective device of pipe-pipe sheet welding gun |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985311A (en) * | 2015-07-24 | 2015-10-21 | 上海电气核电设备有限公司 | Additional gas protecting device of tube-tube plate welding gun |
| RU216231U1 (en) * | 2022-11-09 | 2023-01-24 | Сергей Геннадьевич Замесин | COVER FOR WELDING TORCH FOR GAS SHIELD |
-
2015
- 2015-07-24 CN CN201520542308.9U patent/CN204934835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985311A (en) * | 2015-07-24 | 2015-10-21 | 上海电气核电设备有限公司 | Additional gas protecting device of tube-tube plate welding gun |
| RU216231U1 (en) * | 2022-11-09 | 2023-01-24 | Сергей Геннадьевич Замесин | COVER FOR WELDING TORCH FOR GAS SHIELD |
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| GR01 | Patent grant |