CN115837506A - Stainless steel branch pipe welding argon filling device and using method - Google Patents
Stainless steel branch pipe welding argon filling device and using method Download PDFInfo
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- CN115837506A CN115837506A CN202211335093.4A CN202211335093A CN115837506A CN 115837506 A CN115837506 A CN 115837506A CN 202211335093 A CN202211335093 A CN 202211335093A CN 115837506 A CN115837506 A CN 115837506A
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Abstract
The invention discloses a stainless steel branch pipe welding argon filling device and a using method thereof, wherein the stainless steel branch pipe welding argon filling device comprises a connecting rod, wherein a first sealing unit and a second sealing unit are arranged on the connecting rod, the first sealing unit is positioned in a main pipe, the second sealing unit is positioned in a branch pipe, the first sealing unit and the second sealing unit form a sealing space for a welding position, and a shunting hole for argon is arranged on the connecting rod between the first sealing unit and the second sealing unit; the movable hinge connection is adopted, the movable hinge connection can be simultaneously used for welding and argon filling at two positions of vertical connection and inclined connection of the stainless steel pipeline branch pipe, the requirement of argon filling welding of the multi-position branch pipe is met, and the movable hinge connection has the characteristics of wide application range, easiness in operation, argon saving and the like; the umbrella-shaped structure is adopted to support the air bag, a closed space is formed for a welded junction of the branch pipe, the purity of argon can be effectively guaranteed, and the argon is saved.
Description
Technical Field
The invention relates to the technical field of pipeline welding, in particular to a stainless steel branch pipe welding argon filling device and a using method thereof.
Background
In the argon arc welding construction process of the stainless steel pipeline, argon is filled in the pipeline, which is one of important links in the welding process, the argon is often filled at the back of a welding seam for protection in the welding process, and the argon is required to be filled into the pipeline, so that the argon filled in the pipeline plays a decisive role in ensuring the welding quality. The stainless steel pipeline branch pipe connection is divided into vertical connection and inclined connection, and is generally arranged at the position of a pipe gallery. Because the welding position and the connection mode are limited, argon filling is more difficult in the welding process, and the material used for argon filling in the branch pipe connection welding port is not standard, so that poor welding port protection and argon waste are caused, and the welding quality is influenced. In the prior art, a mode of filling argon from the upper part of a welding seam is adopted, so that the flow of argon is required to be larger and the argon consumption is higher for creating an oxygen-free or low-oxygen environment around the back of the welding seam. In addition, the method has higher requirement on the stability of argon flow, the problems of poor weld surface forming and the like caused by unstable argon filling effect are easy to occur, and a method for effectively solving the problems is not found in the current construction technology.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the stainless steel branch pipe welding argon filling device and the using method thereof, which improve the welding quality of the stainless steel branch pipe and reduce the waste of argon.
The technical scheme of the invention is as follows:
in a first aspect of the present invention, a stainless steel branch pipe welding argon filling apparatus comprises:
the argon gas separation device comprises a connecting rod, be provided with first sealed unit and the sealed unit of second on the connecting rod, first sealed unit is located the main pipe, and the sealed unit of second is located the bronchus, and first sealed unit and the sealed unit of second form sealed space to the welding position, be equipped with the reposition of redundant personnel hole of argon gas on the connecting rod between first sealed unit and the sealed unit of second.
In some embodiments of the present invention, the first sealing unit includes an umbrella-shaped air bag mounted on a stopper tube with an air outlet hole through a fixing plate.
In some embodiments of the invention, the umbrella shaped air bag is supported by ribs mounted on an umbrella nest on a connecting rod.
In some embodiments of the present invention, the second sealing unit is an airbag having a thread on both sides, and is mounted on the connecting rod through the thread.
In some embodiments of the present invention, the air bag is limited by a limiting pipe, and the limiting pipe is provided with an air outlet.
In some embodiments of the invention, the connecting rod is a hollow tube, and an air tube and an argon tube are disposed within the tube.
In some embodiments of the present invention, the air tube inflates the first sealing unit and the second sealing unit, and the argon tube inflates a sealed space formed by the first sealing unit and the second sealing unit.
In some embodiments of the present invention, the connection rod where the first sealing unit is located and the connection rod where the second sealing unit is located are connected by a living hinge.
In some embodiments of the invention, a support unit is arranged on the connecting rod, and the support unit is a support ring with a guide wheel.
In a second aspect of the invention, a method for using the stainless steel branch pipe welding argon filling device is provided, which comprises the following steps:
the guide wheel on the support ring drives the whole device to move forward, when the fixed plate reaches the inner wall of the main pipe, the air pipe valve is opened, the two air bags are filled with air according to the display of the air flow meter, and the valve is closed; then, filling argon into the closed space in the welding opening for welding;
after welding is finished, argon filling is stopped, an air conduit valve is opened, air in the air bag is exhausted, and the device is taken out;
further, the stainless steel branch pipe welding for vertical connection and miter joint is filled with argon.
One or more technical schemes of the invention have the following beneficial effects:
(1) According to the invention, the first sealing unit and the second sealing unit are arranged to form a sealing space at the welding position, so that a stable argon protection environment is provided for the welding position, and the welding quality is improved; the first connecting rod where the first sealing unit is located and the second connecting rod where the second sealing unit is located are connected through the movable hinges, the connecting device can be used for welding and argon filling at two positions of vertical connection and inclined connection of the stainless steel pipeline branch pipe at the same time, the multi-position branch pipe argon filling welding is met, and the connecting device has the advantages of being wide in application range, easy to operate, capable of saving argon and the like.
(2) The invention adopts the umbrella-shaped structure to support the air bag, and forms a closed space for the welded junctions of the branch pipes, thereby effectively ensuring the purity of argon and saving argon at the same time. The safety of gasbag structure is not only guaranteed in the inboard three proofings cloth design of umbelliform gasbag, can also collect the welding residue, guarantees the inside cleanliness of pipeline.
(3) The argon filling device is provided with the supporting unit for protecting the air bag and supporting the whole device, and the arrangement of the guide wheels in the supporting unit ensures the smooth propulsion of the argon filling device.
Drawings
FIG. 1 is a schematic view of a branch pipe welding argon filling apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a branch pipe welding argon filling device in an embodiment of the invention used in a vertical connection of branch pipes;
FIG. 3 is a schematic diagram of a branch pipe welding argon filling device in an embodiment of the invention in a branch pipe miter joint;
in the figure: 1. an umbrella-shaped air bag; 2. a fixing plate; 3. a first limit tube; 4. an air outlet; 5. umbrella ribs; 6. an umbrella nest; 7. three-proofing cloth; 8. a living hinge; 9. an air bag with a filament head; 10. a second limiting pipe; 11. a second air outlet; 12. a support ring; 13. an air tube; 14. an argon pipe; 15. a first connecting rod; 16. a shunt hole; 17. a branch pipe; 18. a main pipe; 19. a second connecting rod.
The spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Example 1
In a typical embodiment of the present invention, an argon filling device for stainless steel branch pipe welding is provided, as shown in fig. 1, including an umbrella-shaped airbag 1, a fixing plate 2, a first limiting pipe 3, an air outlet 4, an umbrella rib 5, an umbrella nest 6, a three-proof cloth 7, a movable hinge 8, an airbag 9 with a thread head, a second limiting pipe 10, an open tee 11, a support ring 12, an air pipe 13, an argon pipe 14, a first connecting rod 15, a diversion hole 16, a branch pipe 17, a main pipe 18, and a second connecting rod 19.
The connecting rod is used for supporting whole device, and the connecting rod includes head rod 15 and second connecting rod 19, and head rod 15 and second connecting rod 19 are connected through activity hinge 8, can be used for stainless steel pipeline branch pipe to connect perpendicularly simultaneously and connect two position welding argon fillings to one side, satisfy multiposition branch pipe argon filling welding, have that the range of application is wider, easily operate and practice thrift characteristics such as argon gas. The first sealing unit is arranged on the first connecting rod 15, the second sealing unit is arranged on the second connecting rod, the first sealing unit is located in the main pipe 18, the second sealing unit is located in the branch pipe 17, and the first sealing unit and the second sealing unit form a sealing space for a welding position.
The connecting rod is hollow nonrust steel pipe, intraductal air pipe 13 and the argon gas pipe 14 of setting up, and the end of air pipe is in first sealing unit department, and the air pipe is equipped with open tee bend 11 in second sealing unit department, and the terminal sealed space department that first sealing unit and second sealing unit formed of argon gas pipe, sets up a plurality of reposition of redundant personnel holes 16 on the connecting rod between first sealing unit and the second sealing unit, and air pipe 13 is aerifyd to first sealing unit and second sealing unit, argon gas pipe 14 is aerifyd to the sealed space that first sealing unit and second sealing unit formed, and air pipe 13 and argon gas pipe 14 all adopt flexible hose, and easy bending.
The first sealing unit comprises an umbrella-shaped air bag 1, the umbrella-shaped air bag is mounted on a first limiting pipe 3 at the end part of a first connecting rod 15 through a fixing plate 2, a plurality of first air outlet holes 4 are formed in the first limiting pipe 3, air is inflated to the umbrella-shaped air bag through the air outlet holes of the limiting pipe, and the fixing plate 2 and the first limiting pipe 3 ensure that the umbrella-shaped air bag 1 cannot axially displace when inflated; the outer side of the umbrella-shaped air bag 1 is a rubber air bag, and the inner side is paved with a layer of three-proofing cloth 7, so that the falling of sparks in the welding process is prevented, the air bag is prevented from being damaged, the umbrella-shaped air bag extends along with the umbrella-shaped structure during inflation, and the outer side of the umbrella-shaped air bag is tightly attached to the inner wall of the welding main pipe; the umbrella-shaped air bag 1 is supported by umbrella ribs 5, the umbrella ribs 5 are arranged on an umbrella nest 6 on a first connecting rod 15, the umbrella nest 6 is in sliding connection with the first connecting rod 15, and a plurality of umbrella ribs 5 are arranged and used for controlling the direction of the umbrella-shaped air bag so that the umbrella-shaped air bag is in an umbrella shape when opened; the umbrella ribs are made of aluminum alloy materials, the weight is light, the supporting performance is good, when the umbrella-shaped air bags are inflated, the umbrella ribs are driven to extend outwards, the umbrella nest moves, and the air bags form an umbrella-shaped space.
The second sealing unit is an air bag 9 with two sides provided with screw heads, the air bag is a thick-wall rubber water-closing air bag, the quality is reliable, and the expansibility is good. The spacing pipe welding of second is on the both sides nipple of gasbag for restriction gasbag inflation size, is covered with the venthole on the spacing pipe 10 of second, and opening tee 11 has been seted up in the spacing pipe department of second to air hose 13, and the nipple outside uses foraminiferous rubber plug sealed, and air hose and argon gas pipe pass foraminiferous rubber plug.
The second connecting rod 19 is provided with a supporting unit, the supporting unit is a supporting ring 12 with guide wheels, the guide wheels are uniformly distributed along the circumference of the supporting ring, the guide wheels are fixed on the supporting ring through bolts, preferably, the guide wheels are connected with the supporting ring through elastic pieces, so that the guide wheels can elastically stretch along the radial direction of the supporting ring after entering a pipeline, and the supporting unit is used for protecting an air bag and supporting the whole device, so that the whole device is ensured to advance and retreat at the center of the pipeline.
When in use, the device with the corresponding specification is selected according to the size of the pipeline. When the umbrella-shaped air bag is not inflated, the umbrella-shaped air bag 1 is in a contraction shape, the whole device is pushed in from the branch pipe 17, when the first sealing unit reaches the bottom of the welding main pipe, the air is inflated from the air pipe 13, air enters the umbrella-shaped air bag 1 from the air outlet 4, the umbrella-shaped air bag 1 extends from two sides of the fixing plate 2 to the periphery, the first limiting pipe 3 ensures the axial extension displacement of the umbrella-shaped air bag 1, the expansion of the umbrella-shaped air bag 1 drives the umbrella ribs 5 to be opened and plays a supporting role, and the umbrella nest 6 is used for supporting and fixing the umbrella ribs 5. The air tube is provided with an opening tee joint 11 in the second sealing unit air bag, air enters the air bag 9 from the air outlet hole, the second limiting tube 10 ensures the axial extension displacement of the air bag 9, and the air pressure in the two air bags is always kept consistent. The support ring 12 with wheels has a supporting function, and when the connecting rod is pushed, the support ring 12 drives the whole device to move forwards. When the device reaches the designated position, the air pipe valve is opened, the two air bags are filled with air according to the display of the air flow meter, and the valve is closed. Then, the closed space in the crater is filled with argon, and the argon pipe fills the argon into the closed space through the shunting hole 16. After the welding is finished, argon filling is stopped, the air conduit valve is opened, air in the air bag is exhausted, and the device is taken out.
The branch pipe welding argon filling device is used for vertically connecting branch pipes as shown in figure 2, and the axial lines of a first connecting rod and a second connecting rod are vertical to the axial line of a main pipe; the branch pipe welding argon filling device is used in a branch pipe miter joint as shown in fig. 3, when the device is pushed to a main pipe, the first sealing unit changes the axial line of the first connecting rod and the axial line of the main pipe into a vertical direction at a movable hinge under the action of gravity.
Example 2
In an exemplary embodiment of the present invention, a method for using a branch pipe welding argon filling device is provided, which comprises the following steps:
the pulleys on the support ring drive the whole device to move forward, when the fixed plate reaches the inner wall of the main pipe, the air pipe valve is opened, the two air bags are filled with air according to the display of the air flow meter, and the valve is closed; then, filling argon into the closed space in the welding opening for welding;
after welding is finished, argon filling is stopped, an air conduit valve is opened, air in the air bag is exhausted, and the device is taken out;
further, the stainless steel branch pipe welding for vertical connection and miter joint is filled with argon.
The embodiments described above are intended to illustrate the technical solutions of the present invention in detail, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modification, supplement or similar substitution made within the scope of the principles of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a stainless steel branch pipe welding argon filling device, its characterized in that, includes the connecting rod, be provided with first sealed unit and the sealed unit of second on the connecting rod, first sealed unit is located the main pipe, and the sealed unit of second is located the branch pipe, and first sealed unit and the sealed unit of second form sealed space to the welding position, be equipped with the reposition of redundant personnel hole of argon gas on the connecting rod between first sealed unit and the sealed unit of second.
2. The stainless steel branch pipe welding argon filling device according to claim 1, wherein the first sealing unit comprises an umbrella-shaped air bag, and the umbrella-shaped air bag is mounted on a limiting pipe with an air outlet through a fixing plate.
3. The stainless steel branch pipe welding argon filling device according to claim 2, wherein the umbrella-shaped air bag is supported by umbrella ribs, and the umbrella ribs are installed on an umbrella nest on the connecting rod.
4. The stainless steel branch pipe welding argon filling apparatus of claim 1, wherein said second sealing unit is an air bag having a thread on both sides, and is mounted on the connection rod through the thread.
5. The device for welding and filling argon into the stainless steel branch pipe as claimed in claim 4, wherein the air bag is limited by a limiting pipe, and the limiting pipe is provided with an air outlet.
6. The stainless steel branch pipe welding argon filling device according to claim 1, wherein the connecting rod is a hollow pipe, and an air pipe and an argon pipe are arranged in the hollow pipe.
7. The stainless steel branch pipe welding argon filling apparatus of claim 6, wherein the air pipe inflates the first sealing unit and the second sealing unit, and the argon pipe inflates a sealed space formed by the first sealing unit and the second sealing unit.
8. The stainless steel branch pipe welding argon filling device according to claim 1, wherein the connecting rod where the first sealing unit is located and the connecting rod where the second sealing unit is located are connected by a living hinge.
9. The stainless steel branch pipe welding argon filling device according to claim 1, wherein a support unit is arranged on the connecting rod, and the support unit is a support ring with a guide wheel.
10. A method of using the stainless steel branch pipe welding argon filling apparatus according to any one of claims 1 to 9, characterized by comprising the steps of:
the guide wheel on the support ring drives the whole device to move forward, when the fixed plate reaches the inner wall of the main pipe, the air pipe valve is opened, the two air bags are filled with air according to the display of the air flow meter, and the valve is closed; then, filling argon into the closed space in the welding opening for welding;
after welding is finished, argon filling is stopped, an air conduit valve is opened, air in the air bag is exhausted, and the device is taken out;
further, the stainless steel branch pipe welding for vertical connection and miter joint is filled with argon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211335093.4A CN115837506A (en) | 2022-10-28 | 2022-10-28 | Stainless steel branch pipe welding argon filling device and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211335093.4A CN115837506A (en) | 2022-10-28 | 2022-10-28 | Stainless steel branch pipe welding argon filling device and using method |
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| CN115837506A true CN115837506A (en) | 2023-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275424A (en) * | 2023-05-06 | 2023-06-23 | 湖北迪峰换热器股份有限公司 | Welding device for ultrathin aluminum strip heat exchanger forming process |
-
2022
- 2022-10-28 CN CN202211335093.4A patent/CN115837506A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275424A (en) * | 2023-05-06 | 2023-06-23 | 湖北迪峰换热器股份有限公司 | Welding device for ultrathin aluminum strip heat exchanger forming process |
| CN116275424B (en) * | 2023-05-06 | 2023-10-03 | 湖北迪峰换热器股份有限公司 | Welding device for ultrathin aluminum strip heat exchanger forming process |
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