Pipe welding alignment tool and construction structure and method

Abstract

The application discloses a pipeline welding centering tool, a construction structure and a construction method. The centering tool comprises a supporting column, two fixed discs are arranged at one end of the supporting column at intervals, and the two fixed discs are arranged perpendicularly to the supporting column and the centers of the two fixed discs are located on the axis of the supporting column. A plurality of adjusting sectors are uniformly distributed on the outer circumferences of the two fixed discs, and the adjusting sectors are arranged on the corresponding fixed discs through hinges. When the adjusting sectors are located on the same plane with the corresponding fixed discs, the outer diameter of the adjusting sectors corresponds to the inner diameter of the two butt-jointed pipelines, so that the two butt-jointed pipelines can be supported respectively and the axes of the two butt-jointed pipelines can be ensured to be located on the same straight line. The adjusting sectors on the two fixed discs are arranged in one-to-one correspondence and are connected through first connecting rods, so that the adjusting sectors on the two fixed discs can be adjusted simultaneously. The centering tool can ensure the coaxiality of the two butt-jointed pipelines and effectively improve the working efficiency and the welding quality.

Description

Technical Field

[0001] The invention belongs to a pipeline welding centering tool, and in particular relates to a pipeline welding centering tool, a construction structure and a construction method. Background Art

[0002] Pipe butt welding is a common process in construction projects. Traditionally, there are two methods: The first involves placing the two pipes to be butted on a simple workbench and then manually aligning the joints. This approach makes it difficult to ensure the coaxiality of the two pipes, requires significant adjustment time, and is inefficient. Furthermore, the joints are prone to misalignment during welding, preventing continuous welding and thus impacting weld quality. The second method involves placing an alignment tool on the outside of the two pipes to be butted. While this effectively ensures coaxiality and improves work efficiency, the alignment tool prevents continuous welding during welding, hindering weld quality.

[0003] Based on this, providing a centering tool that can effectively ensure the coaxiality of two butted pipes, improve work efficiency, and ensure welding quality is a technical problem that this field hopes to solve. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a pipeline welding alignment tool, a construction structure and a construction method, which can effectively improve work efficiency and welding quality while ensuring the coaxiality of two butted pipes.

[0005] The technical solution of the present invention is achieved as follows:

[0006] A pipeline welding centering tool includes a support column, a first fixed disc is provided at one end of the support column, and a second fixed disc is provided on the support column close to the first fixed disc. The first fixed disc and the second fixed disc are arranged at intervals, and the two fixed discs are arranged perpendicular to the support column and the centers of the two fixed discs are located on the axis of the support column.

[0007] A plurality of first and second adjusting fan blades are evenly distributed on the outer circumferences of the first fixed disc and the second fixed disc, respectively. The first and second adjusting fan blades are respectively arranged on the first and second fixed discs through hinges. When the adjusting fan blades and the corresponding fixed discs are located in the same plane, the outer diameters of the adjusting fan blades correspond to the inner diameters of the two docking pipes, which is convenient for supporting the two docking pipes respectively and ensuring that the axes of the two docking pipes are located in the same straight line; the first and second adjusting fan blades are arranged in a one-to-one correspondence and are respectively connected by a first connecting rod, which is convenient for adjusting the first and second adjusting fan blades at the same time.

[0008] Method 1: Furthermore, it also includes an adjustment mechanism, the adjustment mechanism includes a movable ring mounted on the support column, the movable ring is arranged on the outside of the second fixed disc and can move longitudinally along the support column, and the second adjusting fan is connected to the movable ring through a second connecting rod, and a rope is tied to the movable ring, one end of the rope is connected to the movable ring, and the other end of the rope is connected to the end of the support column away from the first fixed disc, and the support column has a certain length, which is convenient for pulling the other end of the rope outside the docking pipe to pull the second connecting rod to move, thereby pulling the adjusting fan closer to the center of the fixed disc, and then facilitating the removal of the centering tool from the docking pipe.

[0009] Furthermore, an operating ring is provided on the end of the support column away from the first fixed disc, and the other end of the rope is fixed on the operating ring; correspondingly, a limit bracket is provided on the outer circumference of the support column, and the limit bracket is U-shaped and fixed on the support column along the longitudinal direction of the support column, and the operating ring is provided on the support column corresponding to the limit bracket, so that the operating ring can move along the length direction of the support column in the limit bracket.

[0010] Furthermore, there are multiple ropes, and all the ropes are evenly arranged between the movable ring and the operating ring.

[0011] Method 2: Furthermore, it also includes an adjustment mechanism, the adjustment mechanism includes a movable ring mounted on the support column, the movable ring is arranged on the outside of the second fixed disc and can move longitudinally along the support column, and the second adjusting fan is connected to the movable ring through a second connecting rod, and an operating rod is provided on the movable ring, the operating rod is arranged parallel to the support rod and one end of the operating rod is connected to the movable ring, and the other end of the operating rod is close to the support column and away from one end of the first fixed disc, and the support column has a certain length, which is convenient for pulling the other end of the operating rod outside the docking pipe to pull the second connecting rod to move, thereby pulling the adjusting fan closer to the center of the fixed disc, thereby facilitating the removal of the centering tool from the docking pipe.

[0012] Furthermore, an operating ring is sleeved on one end of the support column away from the fixed disc, and the other end of the operating rod is fixed on the operating ring, so that the first adjusting fan blade and the second adjusting fan blade can be adjusted by pushing and pulling the operating ring.

[0013] Furthermore, there are multiple operating rods, and all the operating rods are evenly distributed between the movable ring and the operating ring.

[0014] The present invention also provides a pipeline welding construction structure, comprising two butt-jointed pipelines, the two butt-jointed pipelines being arranged opposite to each other, and comprising the aforementioned pipeline welding construction centering tool.

[0015] The first fixed disc and the second fixed disc are respectively located in the two docking pipes and are both a certain distance away from the docking ports of the two docking pipes. The first adjusting fan blade and the second adjusting fan blade are respectively located in the same plane as the first fixed disc and the second fixed disc to support the two docking pipes respectively and ensure the coaxiality of the two docking pipes.

[0016] The present invention also provides a pipeline welding construction method, which uses the pipeline welding alignment tool described in the first embodiment to weld two butted pipelines, specifically comprising the following steps:

[0017] S1: Place two docking pipes so that their docking interfaces are facing each other; hold the support column of the handheld centering tool, and insert the first fixed disc at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc and the second fixed disc are respectively located in the two docking pipes and are a certain distance away from the docking interfaces of the two docking pipes;

[0018] S2: Using a rod to push the second adjustment fan inward on the outer side of the docking pipe away from the first fixed disk, so that the first adjustment fan and the second adjustment fan are respectively located in the same plane as the first fixed disk and the second fixed disk;

[0019] S3: Continuously weld the butt joints of two butt-jointed pipes;

[0020] S4: After welding is completed, pull the operating ring outward to make the first adjusting segment and the second adjusting segment approach the center of the first fixed disc and the second fixed disc respectively, and then hold the support column to take out the centering tool.

[0021] A pipeline welding construction method, using a pipeline welding alignment tool described in method 2 to weld two butted pipelines, specifically comprises the following steps:

[0022] S1: Place two docking pipes so that their docking interfaces are facing each other; hold the support column of the handheld centering tool, and insert the first fixed disc at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc and the second fixed disc are respectively located in the two docking pipes and are a certain distance away from the docking interfaces of the two docking pipes;

[0023] S2: Push the second adjusting fan into the docking pipe so that the first adjusting fan and the second adjusting fan are located in the same plane as the first fixed disk and the second fixed disk respectively;

[0024] S3: Continuously weld the butt joints of two butt-jointed pipes;

[0025] S4: After welding is completed, pull the operating ring outward to make the first adjusting segment and the second adjusting segment approach the center of the first fixed disc and the second fixed disc respectively, and then hold the support column to take out the centering tool.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] By using the centering tool described in the present invention, when the first adjusting fan and the second adjusting fan are adjusted to be located in the same plane as the first fixed disc and the second fixed disc respectively, based on the principle of two points determining a straight line, the centering tool described in the present invention can effectively ensure that the axes of the two docking pipes are located in the same straight line, that is, the coaxiality of the two docking pipes can be ensured.

[0028] Furthermore, when using the centering tool for pipe welding, simply align the butt joints of the two butted pipes and bring them together. This is convenient and quick, effectively improving work efficiency. Furthermore, because the centering tool is located within the pipe during welding, it does not hinder welding, allowing for continuous connection, effectively ensuring weld quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 -Schematic diagram of the structure of the first embodiment of the centering tool according to the present invention.

[0030] Figure 2 -Schematic diagram of the structure of the first embodiment of the centering tool according to the present invention.

[0031] Figure 3 - Schematic diagram of the connection between the fixed disc and the adjusting fan.

[0032] Among them: 1-first fixed disc; 2-first adjusting fan; 3-support column; 4-first connecting rod; 5-second fixed disc; 6-second adjusting fan; 7-second connecting rod; 8-movable ring; 9-wire rope; 10-operating ring; 11-limiting bracket; 12-operating rod; 13-hinge. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See also Figure 1 、 Figure 2 and Figure 3 A pipeline welding centering tool includes a support column 3, a first fixed disc 1 is provided at one end of the support column 3, a second fixed disc 5 is provided on the support column 3 close to the first fixed disc 1, the first fixed disc 1 and the second fixed disc 5 are arranged at intervals, and the two fixed discs are arranged perpendicular to the support column 3 and the centers of the two fixed discs are located on the axis of the support column 3.

[0035] A number of first adjustment blades 2 and second adjustment blades 6 are evenly distributed on the outer circumference of the first fixed disc 1 and the second fixed disc 5, respectively. The first adjustment blades 2 and the second adjustment blades 6 are respectively arranged on the first fixed disc 1 and the second fixed disc 5 through hinges 13. When the first adjustment blades 2 and the second adjustment blades 6 are respectively located in the same plane as the first fixed disc 1 and the second fixed disc 5, the outer diameters of the first adjustment blades 2 and the second adjustment blades 6 correspond to the inner diameters of the two docking pipes, which is convenient for supporting the two docking pipes respectively and ensuring that the axes of the two docking pipes are located in the same straight line; the first adjustment blades 2 and the second adjustment blades 6 are arranged in a one-to-one correspondence and are respectively connected by the first connecting rod 4, which is convenient for adjusting the first adjustment blades 2 and the second adjustment blades 6 at the same time.

[0036] Here, both ends of the first connecting rod are hingedly connected to the first adjustment fan and the corresponding second adjustment fan, so that when the first adjustment fan and the second adjustment fan are adjusted, the two are adjusted synchronously.

[0037] In this way, before welding the two butt-jointed pipes, the centering tool is first placed in the two butt-jointed pipes, and the first fixed disc and the second fixed disc are respectively located in the two butt-jointed pipes and are both a certain distance away from the butt-jointed interfaces of the two butt-jointed pipes. Then, the first adjusting fan blade and the second adjusting fan blade are adjusted to be located in the same plane as the first fixed disc and the second fixed disc, respectively. In this way, by using the principle of two points determining a straight line, it is possible to effectively ensure that the axes of the two butt-jointed pipes are located in the same straight line, that is, the coaxiality of the two butt-jointed pipes can be guaranteed.

[0038] Furthermore, when using this alignment tool for pipe welding, simply align the butt joints of the two pipes, making it easy to operate and effectively improving work efficiency. Furthermore, since the alignment tool is located within the pipe during welding, it does not hinder welding, allowing for continuous connection and effectively ensuring weld quality.

[0039] The centering tool can be used for centering welding of two butt-jointed pipes arranged horizontally, two butt-jointed pipes arranged vertically, and even two butt-jointed pipes arranged obliquely.

[0040] Implementation method one: During specific implementation, it also includes an adjustment mechanism, which includes a movable ring 8 mounted on the support column 3. The movable ring 8 is arranged on the outside of the second fixed disc 5 and can move longitudinally along the support column 3. At the same time, the second adjustment fan 6 is hingedly connected to the movable ring 8 through the second connecting rod 7, and a steel wire rope 9 is tied to the movable ring 8. One end of the steel wire rope 9 is connected to the movable ring 8, and the other end of the rope is connected to the end of the support column 3 away from the first fixed disc 1, and the support column 3 has a certain length, which is convenient for pulling the other end of the steel wire rope 9 outside the docking pipe to pull the second connecting rod 7 to move, thereby pulling the first adjustment fan 2 and the second adjustment fan 6 closer to the center of the first fixed disc 1 and the second fixed disc 5 respectively, thereby facilitating the removal of the centering tool from the docking pipe.

[0041] In this way, before welding the two butt-jointed pipes, the centering tool is placed inside the two butt-jointed pipes and then the second adjusting fan is pushed inward with the help of a rod, such as steel bars at the construction site, so that the first adjusting fan and the second adjusting fan are respectively located in the same plane with the first fixed disc and the second fixed disc, and then welding is performed.

[0042] After completing the welding of the two butt-jointed pipes, the steel wire rope is pulled. Due to the linkage between the second connecting rod and the first connecting rod, the first adjusting segment and the second adjusting segment can be moved closer to the center of the first fixed disc and the second fixed disc respectively, so that the size of the centering tool is smaller than the inner diameter of the butt-jointed pipe, or even smaller than the diameter of the butt weld of the two butt-jointed pipes. The centering tool can then be taken out of the butt-jointed pipe by holding the support column and can be reused in the welding construction of two butt-jointed pipes of the same specification.

[0043] During specific implementation, an operating ring 10 is sleeved on the end of the support column 3 away from the first fixed disc, and the other end of the wire rope 9 is fixed on the operating ring; correspondingly, a limit bracket 11 is provided on the outer circumference of the support column 3, and the limit bracket 11 is U-shaped and fixed on the support column 3 along the longitudinal direction of the support column 3. The operating ring 10 is sleeved on the support column 3 corresponding to the limit bracket 11, so that the operating ring 10 can move along the length direction of the support column 3 in the limit bracket 11.

[0044] An operating ring is provided here to facilitate operation by staff, and a limit bracket is provided to facilitate limiting the operating ring and placing the operating ring. At the same time, the limit bracket is U-shaped and the opening has a certain length, so that the length of the opening can be determined according to the adjustment amplitude of the first adjustment fan and the second adjustment fan, ensuring that the operating ring is always located in the limit bracket without affecting the operation.

[0045] In a specific implementation, there are multiple steel wire ropes 9 , and all the steel wire ropes 9 are evenly arranged between the movable ring 8 and the operating ring 10 .

[0046] Setting up multiple steel ropes is beneficial to improving structural stability and facilitating operation.

[0047] Implementation method two: During specific implementation, it also includes an adjustment mechanism, which includes a movable ring 8 mounted on the support column 3, and the movable ring 8 is arranged on the outside of the second fixed disc 5 and can move longitudinally along the support column 3. At the same time, the second adjusting fan 6 is hingedly connected to the movable ring 8 through the second connecting rod 7, and an operating rod 12 is provided on the movable ring 8. The operating rod 12 is arranged parallel to the support rod 3 and one end of the operating rod 12 is connected to the movable ring 8, and the other end of the operating rod 12 is close to the support column 3 away from one end of the first fixed disc, and the support column 3 has a certain length, which is convenient for pulling the other end of the operating rod 12 outside the docking pipe to pull the second connecting rod 7 to move, thereby pulling the first adjusting fan 2 and the second adjusting fan 6 closer to the center of the first fixed disc 1 and the second fixed disc 5 respectively, thereby facilitating the removal of the centering tool from the docking pipe.

[0048] In this way, before welding the two butt-jointed pipes, the centering tool is placed in the two butt-jointed pipes and then the operating rod is pushed inward to make the first adjusting segment and the second adjusting segment be located in the same plane as the first fixed disc and the second fixed disc respectively, and then welding is performed.

[0049] After completing the welding of the two butt-jointed pipes, the operating rod is pulled. Due to the linkage between the second connecting rod and the first connecting rod, the first adjusting fan and the second adjusting fan can be moved closer to the center of the first fixed disc and the second fixed disc respectively, so that the size of the centering tool is smaller than the inner diameter of the butt-jointed pipe, or even smaller than the diameter of the butt weld of the two butt-jointed pipes. The centering tool can then be taken out of the butt-jointed pipe by holding the support column and can be reused in the welding construction of two butt-jointed pipes of the same specification.

[0050] In specific implementation, an operating ring 10 is sleeved on one end of the support column 3 away from the fixed disc, and the other end of the operating rod 12 is fixed on the operating ring 10, so that the first adjustment fan 2 and the second adjustment fan 6 can be adjusted by pushing and pulling the operating ring 10.

[0051] In a specific implementation, there are multiple operating rods 12 , and all the operating rods 12 are evenly distributed between the movable ring 8 and the operating ring 12 .

[0052] The present invention also provides a pipeline welding construction structure, comprising two butt-jointed pipelines, the two butt-jointed pipelines being arranged opposite to each other, and comprising the aforementioned pipeline welding construction centering tool.

[0053] The first fixed disc 1 and the second fixed disc 5 are respectively located in the two docking pipes and are both a certain distance away from the docking interfaces of the two docking pipes. The first adjusting fan 2 and the second adjusting fan 6 are respectively located in the same plane as the first fixed disc 1 and the second fixed disc 5 to support the two docking pipes respectively and ensure the coaxiality of the two docking pipes.

[0054] See also Figure 1 The present invention also provides a pipeline welding construction method, which uses the pipeline welding alignment tool described in the first embodiment to weld two butted pipelines, specifically comprising the following steps:

[0055] S1: Place the two docking pipes so that the docking interfaces of the two docking pipes are arranged opposite each other; hold the support column 3 of the handheld centering tool at one end, and insert the first fixed disc 1 at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc 1 and the second fixed disc 5 are respectively located in the two docking pipes and are at a certain distance from the docking interfaces of the two docking pipes;

[0056] S2: Use a rod such as a steel bar to push the second adjustment fan 6 inward on the outside of the docking pipe away from the first fixed disc 1, so that the first adjustment fan 2 and the second adjustment fan 6 are respectively located in the same plane as the first fixed disc 1 and the second fixed disc 5;

[0057] S3: Continuously weld the butt joints of two butt-jointed pipes;

[0058] S4: After welding is completed, pull the operating ring 10 outward to make the first adjusting fan 2 and the second adjusting fan 6 approach the center of the first fixed disk 1 and the second fixed disk 5 respectively, and then hold the support column 3 to take out the centering tool.

[0059] See also Figure 2 A pipeline welding construction method, using the pipeline welding centering tool described in the second embodiment to weld two butted pipelines, specifically includes the following steps:

[0060] S1: Place the two docking pipes so that the docking interfaces of the two docking pipes are arranged opposite each other; hold the support column 3 of the handheld centering tool at one end, and insert the first fixed disc 1 at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc 1 and the second fixed disc 5 are respectively located in the two docking pipes and are at a certain distance from the docking interfaces of the two docking pipes;

[0061] S2: Push the operating ring 10 into the docking pipe so that the first adjusting segment 2 and the second adjusting segment 6 are located in the same plane as the first fixed disc 1 and the second fixed disc 5 respectively;

[0062] S3: Continuously weld the butt joints of two butt-jointed pipes;

[0063] S4: After welding is completed, pull the operating ring 10 outward to make the first adjusting fan 2 and the second adjusting fan 6 approach the center of the first fixed disk 1 and the second fixed disk 5 respectively, and then hold the support column 3 to take out the centering tool.

[0064] Finally, it should be noted that the above embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations and modifications can be made based on the above description. It is not possible to enumerate all embodiments here. Any obvious variations or modifications arising from the technical solution of the present invention remain within the scope of protection of the present invention.

Claims

1. A pipeline welding centering tool, characterized in that: The invention comprises a support column, a first fixed disc is provided at one end of the support column, a second fixed disc is provided on the support column close to the first fixed disc, the first fixed disc and the second fixed disc are spaced apart, and the two fixed discs are arranged perpendicular to the support column and the centers of the two fixed discs are located on the axis of the support column; A plurality of first and second adjusting blades are evenly distributed on the outer circumferences of the first and second fixed discs, respectively. The first and second adjusting blades are respectively arranged on the first and second fixed discs by hinges. When the adjusting blades and the corresponding fixed discs are located in the same plane, the outer diameters of the adjusting blades correspond to the inner diameters of the two butting pipes, thereby facilitating the support of the two butting pipes and ensuring that the axes of the two butting pipes are located in the same straight line. The first and second adjusting blades are arranged in a one-to-one correspondence and are respectively connected by a first connecting rod, so as to facilitate simultaneous adjustment of the first and second adjusting blades. and a lever, having one end in pinned connection to the second support frame, the middle portion being fixed by the pin link, and the other end being fixed by the pin link, so that the pin link can move relative to the first support frame and the second support frame can be locked. or The cam is fixed to the second adjusting member so that the cam can be adjusted relative to the first adjusting member and the second adjusting member can be adjusted relative to the first adjusting member by adjusting the engagement ring.

2. A pipeline welding centering tool according to claim 1, characterized in that: There are multiple ropes, and all the ropes are evenly arranged between the movable ring and the operating ring.

3. The pipeline welding centering tool according to claim 1, characterized in that: There are multiple operating rods, and all the operating rods are evenly distributed between the movable ring and the operating ring.

4. A pipeline welding construction structure, comprising two butt-jointed pipelines, the two butt-jointed pipelines being arranged opposite to each other, characterized in that: A pipeline welding construction centering tool comprising any one of claims 1 to 3; The first fixed disc and the second fixed disc are respectively located in the two docking pipes and are both a certain distance away from the docking ports of the two docking pipes. The first adjusting fan blade and the second adjusting fan blade are respectively located in the same plane as the first fixed disc and the second fixed disc to support the two docking pipes respectively and ensure the coaxiality of the two docking pipes.

5. A pipeline welding construction method, characterized in that: The method of welding two butted pipes using the pipe welding centering tool according to claim 1 or 2 specifically comprises the following steps: S1: Place two docking pipes so that their docking interfaces are facing each other; hold the support column of the handheld centering tool, and insert the first fixed disc at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc and the second fixed disc are respectively located in the two docking pipes and are a certain distance away from the docking interfaces of the two docking pipes; S2: Using a rod to push the second adjustment fan inward on the outer side of the docking pipe away from the first fixed disk, so that the first adjustment fan and the second adjustment fan are respectively located in the same plane as the first fixed disk and the second fixed disk; S3: Continuously weld the butt joints of two butt-jointed pipes; S4: After welding is completed, pull the operating ring outward to make the first adjusting segment and the second adjusting segment approach the center of the first fixed disc and the second fixed disc respectively, and then hold the support column to take out the centering tool.

6. A pipeline welding construction method, characterized in that: The method of welding two butted pipes using the pipe welding centering tool according to claim 1 or 3 specifically comprises the following steps: S1: Place two docking pipes so that their docking interfaces are facing each other; hold the support column of the handheld centering tool, and insert the first fixed disc at one end through one docking pipe and into the other docking pipe in sequence, while ensuring that the first fixed disc and the second fixed disc are respectively located in the two docking pipes and are a certain distance away from the docking interfaces of the two docking pipes; S2: Push the second adjusting fan into the docking pipe so that the first adjusting fan and the second adjusting fan are located in the same plane as the first fixed disk and the second fixed disk respectively; S3: Continuously weld the butt joints of two butt-jointed pipes; S4: After welding is completed, pull the operating ring outward to make the first adjusting segment and the second adjusting segment approach the center of the first fixed disc and the second fixed disc respectively, and then hold the support column to take out the centering tool.

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