CN104985311A - Additional gas protecting device of tube-tube plate welding gun - Google Patents
Additional gas protecting device of tube-tube plate welding gun Download PDFInfo
- Publication number
- CN104985311A CN104985311A CN201510440122.7A CN201510440122A CN104985311A CN 104985311 A CN104985311 A CN 104985311A CN 201510440122 A CN201510440122 A CN 201510440122A CN 104985311 A CN104985311 A CN 104985311A
- Authority
- CN
- China
- Prior art keywords
- tube
- additional gas
- protective device
- cover enclosure
- isocon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B23K9/32—Accessories
- B23K9/321—Protecting means
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses and provides an additional gas protecting device of a tube-tube plate welding gun. The additional gas protecting device is fixedly connected with the gun head of an argon arc welding machine; the additional gas protecting device comprises an inner cover enclosure, an outer cover enclosure, a side cover enclosure, a gas filling tube and a flow divider tube, wherein the inner cover enclosure is arranged at the outer side of the gun head of the argon arc welding machine in a sleeving mode; the outer cover enclosure is arranged at the outer side of the inner cover enclosure in the sleeving mode; the side cover enclosure is connected with the inner cover enclosure and the outer cover enclosure respectively, so that a semi-sealed cavity is formed between the inner cover enclosure and the outer cover enclosure; the gas filling tube penetrates through the side cover enclosure; one end of the gas filling tube is arranged in the cavity, and the other end of the gas filling tube is connected with an argon-gas gas source by a gas guide tube; the flow divider tube is in the form of a semi-sealed circular ring, is arranged in the cavity, and surrounds the inner cover enclosure; one end of the flow divider tube is open, and the other end of the flow divider tube is sealed; the open end is connected with the gas filling tube; and a plurality of small holes are formed in the flow divider tube. The additional gas protecting device has secondary protection effect, is simple in structure, simple and convenient to mount and fix, convenient to dismount, and capable of effectively improving the welding quality.
Description
Technical field
The present invention relates to welding technique field, be 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.
Summary of the invention
The object of the present invention is to provide; the invention 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 present invention is achieved through the following technical solutions: a kind of additional gas protective device of pipe-pipe sheet welding gun, and 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 present invention 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, and is applicable to the argon tungsten-arc welding of the easy oxidation metals such as nickel-base alloy, and 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 present invention;
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 present invention 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 present invention 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 invention 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 invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention 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 |
|---|---|---|---|
| CN201510440122.7A CN104985311A (en) | 2015-07-24 | 2015-07-24 | Additional gas protecting device of tube-tube plate welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440122.7A CN104985311A (en) | 2015-07-24 | 2015-07-24 | Additional gas protecting device of tube-tube plate welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985311A true CN104985311A (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510440122.7A Pending CN104985311A (en) | 2015-07-24 | 2015-07-24 | Additional gas protecting device of tube-tube plate welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104985311A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
| CN107825014A (en) * | 2017-12-01 | 2018-03-23 | 四川科新机电股份有限公司 | The backside gas protecting tool set-up and guard method that a kind of tube-to-tube sheet connection mutually welds |
| CN107855692A (en) * | 2017-11-28 | 2018-03-30 | 哈尔滨行健智能机器人股份有限公司 | Tube-sheet Welding robotic gun gas shield device |
| CN108620719A (en) * | 2018-05-25 | 2018-10-09 | 江苏瑞吉格泰油气工程有限公司 | Tube-sheet Welding argon protective device |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
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| CN200988127Y (en) * | 2006-12-26 | 2007-12-12 | 中国石油兰州石油化工公司 | Plate tube welding protective cover |
| CN200991803Y (en) * | 2006-12-26 | 2007-12-19 | 中国石油兰州石油化工公司 | Pipe welding protection device |
| CN202701574U (en) * | 2012-07-19 | 2013-01-30 | 湖州久立管件有限公司 | Large-caliber elbow longitudinal joint gas protecting device |
| CN203124933U (en) * | 2013-04-10 | 2013-08-14 | 宁波明欣化工机械有限责任公司 | Laminar flow protector for welding gun |
| CN103934556A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Auxiliary protection gas hood of automatic TIC welder head |
| CN104607776A (en) * | 2014-12-30 | 2015-05-13 | 上海锅炉厂有限公司 | Mountable and dismountable tube socket gas protection cover |
| CN204934835U (en) * | 2015-07-24 | 2016-01-06 | 上海电气核电设备有限公司 | A kind of additional gas protective device of pipe-pipe sheet welding gun |
-
2015
- 2015-07-24 CN CN201510440122.7A patent/CN104985311A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200988127Y (en) * | 2006-12-26 | 2007-12-12 | 中国石油兰州石油化工公司 | Plate tube welding protective cover |
| CN200991803Y (en) * | 2006-12-26 | 2007-12-19 | 中国石油兰州石油化工公司 | Pipe welding protection device |
| CN202701574U (en) * | 2012-07-19 | 2013-01-30 | 湖州久立管件有限公司 | Large-caliber elbow longitudinal joint gas protecting device |
| CN203124933U (en) * | 2013-04-10 | 2013-08-14 | 宁波明欣化工机械有限责任公司 | Laminar flow protector for welding gun |
| CN103934556A (en) * | 2014-04-10 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Auxiliary protection gas hood of automatic TIC welder head |
| CN104607776A (en) * | 2014-12-30 | 2015-05-13 | 上海锅炉厂有限公司 | Mountable and dismountable tube socket gas protection cover |
| CN204934835U (en) * | 2015-07-24 | 2016-01-06 | 上海电气核电设备有限公司 | A kind of additional gas protective device of pipe-pipe sheet welding gun |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107470807A (en) * | 2017-08-18 | 2017-12-15 | 合肥通用机械研究院 | It is a kind of to be used for the servicing unit of welded tube and the application method of the device in hole |
| CN107855692A (en) * | 2017-11-28 | 2018-03-30 | 哈尔滨行健智能机器人股份有限公司 | Tube-sheet Welding robotic gun gas shield device |
| CN107855692B (en) * | 2017-11-28 | 2024-03-29 | 芜湖行健智能机器人有限公司 | Welding gun gas protection device of tube plate welding robot |
| CN107825014A (en) * | 2017-12-01 | 2018-03-23 | 四川科新机电股份有限公司 | The backside gas protecting tool set-up and guard method that a kind of tube-to-tube sheet connection mutually welds |
| CN108620719A (en) * | 2018-05-25 | 2018-10-09 | 江苏瑞吉格泰油气工程有限公司 | Tube-sheet Welding argon protective device |
| CN112171054A (en) * | 2019-07-03 | 2021-01-05 | 通快激光与系统工程有限公司 | Laser welding auxiliary gas applying device, manufacturing method thereof and laser welding system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |