Correcting device for pipeline welding

Abstract

The utility model discloses a correcting device for pipeline welding, which belongs to the field of pipeline welding, and comprises a base, two bases are arranged at the top of the base, correcting structures are arranged on the two bases, top plates are arranged above the two bases, and the correcting structures are arranged on the top plates. According to the scheme, liquid in the water tank is refrigerated through the effect of an arranged semiconductor refrigeration piece, the refrigerated liquid is further conveyed into the two connecting pipes through an arranged first elastic hose through operation of an arranged pump machine, a welded pipeline is cooled, and the welded pipeline is cooled; different cooling conditions are arranged on the two sides of the connector, the shrinkage amount of the side with the high temperature is larger than that of the side with the low temperature, and therefore welding deformation is reduced, and the effect of correcting the welding deformation of the pipeline welding machine is achieved when the pipeline welding machine is used.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding, and more specifically, to a straightening device for pipe welding. Background Technology

[0002] Pipeline systems are widely used in numerous industries such as petroleum, chemical, power, and construction, undertaking the vital task of transporting fluids and gases. Pipeline welding is a crucial step in pipeline installation and maintenance, and the quality of welding directly affects the safety, sealing, and stability of the pipeline system. High-quality welding ensures that pipelines do not experience leaks, ruptures, or other malfunctions during long-term operation, guaranteeing the normal operation of the entire system.

[0003] During pipeline welding, uneven heat input can easily cause deformation, such as bending and twisting, in pipelines. Welding deformation not only affects the appearance of the pipeline but can also reduce installation accuracy, impacting subsequent connections and system operation. For example, in large petrochemical plants, pipeline deformation can prevent accurate alignment between the pipeline and equipment interfaces, increasing installation difficulty and potentially requiring re-welding or adjustments, leading to project delays and increased costs. Therefore, this paper proposes a correction device for pipeline welding to address these issues. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a straightening device for pipe welding. This device uses a semiconductor cooling chip to cool the liquid inside a water tank. A pump then delivers the cooled liquid through a first elastic hose to the inside of two connecting pipes, thus cooling the welded pipe. By setting different cooling conditions on both sides of the joint, the side with the higher temperature contracts more than the side with the lower temperature, thereby reducing welding deformation and achieving a corrective effect on welding deformation during pipe welding.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A straightening device for pipe welding includes a base with two pedestals on its top. A straightening structure is mounted on each of the two pedestals. A top plate is mounted above each of the two pedestals. A support plate is fixedly mounted on the top of each of the two pedestals. An arc-shaped plate is rotatably connected to corresponding sides of each support plate via a rotating shaft. A worm gear is fixedly mounted on one side of each of the rotating shafts. A worm is rotatably connected inside each of the two support plates, meshing with the worm gear. The worm gear is rotatably connected to the arc-shaped plate. A handle is fixedly mounted on one side of the worm, passing through and rotatably connecting to one side of the arc-shaped plate.

[0009] Furthermore, the correction structure includes a water tank, which is fixedly connected to the base. A fixing pipe is fixedly installed at the bottom of the inner wall of the water tank. A first elastic hose is fixedly connected to each of the corresponding ends of the fixing pipe. A connecting pipe is fixedly connected to one end of each of the two first elastic hoses. The two connecting pipes are respectively fixedly installed inside the two arc-shaped plates. A second elastic hose is fixedly installed at the end of each of the two connecting pipes away from the first elastic hose. Both the first and second elastic hoses are inserted into the arc-shaped plates and the base and fixedly connected to them. A semiconductor cooling chip is provided on the side of the water tank away from the base.

[0010] Furthermore, a rotating plate is slidably connected to the top of the base, and one of the bases is rotatably connected to the rotating plate via a rotating shaft. Two sliders are fixedly installed at the bottom of the rotating plate, and both sliders are slidably connected to the base. A servo motor is fixedly installed inside the base, and a second threaded rod is fixedly installed at the output end of the servo motor. The second threaded rod is rotatably connected to the base and passes through one of the sliders and is threadedly connected to it.

[0011] Furthermore, a cylinder is fixedly installed at the bottom of each of the two top plates, and a first threaded rod is provided inside each of the two cylinders. The first threaded rod passes through one side of the cylinder and is threadedly connected to it. A gear is fixedly installed at the bottom of each of the two first threaded rods, and the gear is rotatably connected to the base. An electric telescopic rod is fixedly installed inside each of the two bases, and a rack is fixedly installed at the output end of the electric telescopic rod. The rack is slidably connected to the base, and the rack meshes with the gear.

[0012] Furthermore, a guide rod is fixedly installed inside the base, and the guide rod passes through another slider and is slidably connected to it. Auxiliary cylinders are fixedly installed at the bottom of the two top plates and on the corresponding sides of the cylinder body. T-shaped fixing rods are provided inside the two auxiliary cylinders. The two T-shaped fixing rods are fixedly connected to the base. The two T-shaped fixing rods pass through the bottom of the two auxiliary cylinders and are slidably connected to them.

[0013] Furthermore, two solenoid valves are provided at the top of the inner walls of both water tanks, and the second elastic hose is fixedly connected to the solenoid valves. Pumps are fixedly installed at the bottom of the inner walls of both water tanks, and the input end of the fixed pipe is fixedly connected to the pumps. A controller is embedded in one side of the base, and the controller is electrically connected to the semiconductor cooling chip, servo motor, pump, solenoid valve and electric telescopic rod. Friction textures are provided on the top of the support plate and on the side of the two arc plates that are close to each other.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution uses a semiconductor cooling chip to cool the liquid inside the water tank. A pump then delivers the cooled liquid through a first flexible hose to the two connecting pipes, cooling the welded pipes. By setting different cooling conditions on both sides of the joint, the side with the higher temperature contracts more than the side with the lower temperature, thus reducing welding deformation and correcting welding deformation during pipe welding. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side sectional view of the present invention.

[0019] Figure 3 This is an exploded view of the corrective structure of this utility model;

[0020] Figure 4 This is a partial structural diagram of the present invention.

[0021] The following are the labels in the diagram: 1. Base; 2. Base plate; 3. Rotating plate; 4. Support plate; 5. Arc plate; 6. Controller; 7. Water tank; 8. Connecting pipe; 9. First elastic hose; 10. Second elastic hose; 11. Fixed pipe; 13. Semiconductor cooling chip; 14. Worm gear; 15. Top plate; 16. Cylinder; 17. First threaded rod; 18. Rack; 19. Auxiliary cylinder; 20. T-shaped fixed rod; 21. Servo motor; 22. Second threaded rod; 23. Slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-3 The system includes a base 1, with two bases 2 on the top of the base 1. Each base 2 has a straightening structure, and a top plate 15 is provided above each base 2. A support plate 4 is fixedly installed on the top of each base 2. An arc plate 5 is rotatably connected to the corresponding sides of the two support plates 4 via a rotating shaft. A worm gear is fixedly installed on one side of several rotating shafts. A worm 14 is rotatably connected inside each of the two support plates 4. The worm 14 meshes with the worm gear, and the worm gear is rotatably connected to the arc plate 5. A handle is fixedly installed on one side of the worm 14, and the handle passes through one side of the arc plate 5 and is rotatably connected to it.

[0027] By manually turning the lever, the two worm wheels on the outside of the worm 14 rotate synchronously. The two worm wheels are symmetrically arranged so that when adjusting them, the two adjacent arc plates 5 can rotate towards or repel each other, which facilitates the fixing of the welded pipe.

[0028] The correction structure includes a water tank 7, which is fixedly connected to the base 2. A fixing pipe 11 is fixedly installed at the bottom of the inner wall of the water tank 7. A first elastic hose 9 is fixedly connected to each of the corresponding ends of the fixing pipe 11. A connecting pipe 8 is fixedly connected to one end of each of the two first elastic hoses 9. The two connecting pipes 8 are respectively fixedly installed inside the two arc plates 5. A second elastic hose 10 is fixedly installed at the end of each of the two connecting pipes 8 away from the first elastic hose 9. The two first elastic hoses 9 and the second elastic hose 10 are inserted into the arc plate 5 and the base 1 and fixedly connected to them. A semiconductor cooling chip 13 is provided on the side of the water tank 7 away from the base 2.

[0029] The liquid inside the water tank 7 is cooled by the action of the semiconductor cooling chip 13. The cooled liquid is then transported to the inside of the two connecting pipes 8 through the first elastic hose 9 by the operation of the pump. This cools the welded pipes. By setting different cooling conditions on both sides of the joint, the shrinkage on the side with higher temperature is greater than that on the side with lower temperature, thereby reducing welding deformation. This has a corrective effect on the welding deformation during pipe welding. The liquid is then recycled through the second elastic hose 10.

[0030] Two solenoid valves are installed on the top of the inner wall of each of the two water tanks 7. The second elastic hose 10 is fixedly connected to the solenoid valves. Pumps are fixedly installed on the bottom of the inner wall of each of the two water tanks 7. The input end of the fixed pipe 11 is fixedly connected to the pump. A controller 6 is embedded on one side of the base 1. The controller 6 is electrically connected to the semiconductor cooling chip 13, the servo motor 21, the pump, the solenoid valve and the electric telescopic rod. Friction textures are provided on the top of the support plate 4 and on the side of the two arc plates 5 that are close to each other.

[0031] The circulation of liquid inside the water tank 7 is controlled by a pump and a solenoid valve. A liquid temperature sensor is installed inside the water tank 7. The device is controlled by a controller 6. The device also has heat dissipation holes that work with the servo motor 21.

[0032] Please see Figure 4 A rotating plate 3 is slidably connected to the top of the base 1. One of the bases 2 is rotatably connected to the rotating plate 3 via a rotating shaft. Two sliders 23 are fixedly installed at the bottom of the rotating plate 3. Both sliders 23 are slidably connected to the base 1. A servo motor 21 is fixedly installed inside the base 1. A second threaded rod 22 is fixedly installed at the output end of the servo motor 21. The second threaded rod 22 is rotatably connected to the base 1. The second threaded rod 22 passes through one of the sliders 23 and is threadedly connected to it.

[0033] Both top plates 15 have a cylinder 16 fixedly installed at their bottom. Both cylinders 16 have a first threaded rod 17 inside. The first threaded rod 17 passes through one side of the cylinder 16 and is threadedly connected to it. Both first threaded rods 17 have a gear fixedly installed at their bottom, and the gear is rotatably connected to the base 2. Both bases 2 have an electric telescopic rod fixedly installed inside, and the output end of the electric telescopic rod has a rack 18 fixedly installed. The rack 18 is slidably connected to the base 2 and meshes with the gear.

[0034] A guide rod is fixedly installed inside the base 1, and the guide rod passes through another slider 23 and is slidably connected to it. Auxiliary cylinders 19 are fixedly installed at the bottom of the two top plates 15 and on the corresponding sides of the cylinder 16. T-shaped fixing rods 20 are provided inside the two auxiliary cylinders 19. The two T-shaped fixing rods 20 are fixedly connected to the base 2. The two T-shaped fixing rods 20 pass through the bottom of the two auxiliary cylinders 19 and are slidably connected to them.

[0035] The device is rotatably connected to one of the bases 2 and the rotating plate 3. The servo motor 21 drives the slider 23 on the outside of the second threaded rod 22 to move laterally, thereby driving the base 2 on the top of the rotating plate 3 to move laterally. This makes it easier to weld curved pipes and straight pipes when welding pipes, improving the versatility of the device. The electric telescopic rod drives the rack 18 to drive the gear to rotate, causing the cylinder 16 on the outside of the first threaded rod 17 to drive the top plate 15 to move longitudinally, thereby improving the stability when fixing and welding pipes.

[0036] Working principle: One of the bases 2 is rotatably connected to the rotating plate 3, and the servo motor 21 drives the slider 23 on the outside of the second threaded rod 22 to move laterally, thereby driving the base 2 on the top of the rotating plate 3 to move laterally. At the same time, a limit plate is fixedly installed on the top of the base 1 to restrict the rotation position of one of the bases 2, so that one of the bases 2 is in the same straight line as the other base 2 when rotating and moving. By manually turning the handle, the two adjacent arc plates 5 can be rotated towards each other or repulsively, thereby fixing the pipe to be welded.

[0037] The liquid inside the water tank 7 is cooled by the action of the semiconductor cooling chip 13. Furthermore, the two pumps operate separately to cool the pipes that need to be cooled. The cooled liquid is then transported through the first elastic hose 9 to the inside of the two connecting pipes 8 to cool the welded pipes. The liquid is then recycled through the second elastic hose 10.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A straightening device for pipe welding, comprising a base (1), characterized in that: The top of the base (1) is provided with two bases (2), the two bases (2) are provided with a correction structure, the top of the two bases (2) is provided with a top plate (15), the top of the two bases (2) is fixedly installed with a support plate (4), the corresponding two sides of the two support plates (4) are rotatably connected with an arc plate (5) through a rotating shaft, one side of the rotating shaft is fixedly installed with a worm wheel, the inside of the two support plates (4) is rotatably connected with a worm (14), the worm (14) is engaged with the worm wheel, the worm wheel is rotatably connected with the arc plate (5), one side of the worm (14) is fixedly installed with a handle, and the handle passes through one side of the arc plate (5) and is rotatably connected therewith.

2. A straightening device for pipe welding according to claim 1, characterized in that: The correction structure comprises a water tank (7), the water tank (7) is fixedly connected with the base (2), the bottom of the inner wall of the water tank (7) is fixedly installed with a fixed pipe (11), the corresponding two ends of the fixed pipe (11) are fixedly connected with a first elastic hose (9), one end of the two first elastic hoses (9) is fixedly connected with a connecting pipe (8), the two connecting pipes (8) are fixedly installed in the inside of the two arc plates (5), one end of the two connecting pipes (8) away from the first elastic hose (9) is fixedly installed with a second elastic hose (10), the two first elastic hoses (9) and the second elastic hose (10) are inserted into the inside of the arc plate (5) and the base (1) and are fixedly connected therewith, and the side of the water tank (7) away from the base (2) is provided with a semiconductor refrigerating fin (13).

3. A straightening device for pipe welding as defined in claim 1, characterized in that: The top of the base (1) is rotatably connected with a rotating plate (3), one of the bases (2) is rotatably connected with the rotating plate (3) through a rotating shaft, the bottom of the rotating plate (3) is fixedly installed with two sliding blocks (23), the two sliding blocks (23) are slidably connected with the base (1), the inside of the base (1) is fixedly installed with a servo motor (21), the output end of the servo motor (21) is fixedly installed with a second threaded rod (22), the second threaded rod (22) is rotatably connected with the base (1), and the second threaded rod (22) penetrates through one of the sliding blocks (23) and is threadedly connected therewith.

4. A straightening device for pipe welding as defined in claim 1, wherein: The bottom of the two top plates (15) is fixedly installed with a cylinder (16), the inside of the two cylinders (16) is provided with a first threaded rod (17), the first threaded rod (17) penetrates through one side of the cylinder (16) and is threadedly connected therewith, the bottom of the two first threaded rods (17) is fixedly installed with a gear, and the gear is rotatably connected with the base (2), the inside of the two bases (2) is fixedly installed with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly installed with a rack (18), the rack (18) is slidably connected with the base (2), and the rack (18) is engaged with the gear.

5. A straightening device for pipe welding as defined in claim 3, wherein: The inside of the base (1) is fixedly installed with a guide rod, the guide rod penetrates through another sliding block (23) and is in sliding connection with the sliding block (23), the bottom of two top plates (15) and corresponding two sides of the barrel (16) are fixedly installed with auxiliary barrels (19), the inside of two auxiliary barrels (19) is provided with T-shaped fixing rods (20), two T-shaped fixing rods (20) are in fixed connection with the base (2), and two T-shaped fixing rods (20) penetrate through the bottom of two auxiliary barrels (19) and are in sliding connection with the bottom of two auxiliary barrels (19).

6. A straightening device for pipe welding as defined in claim 2, wherein: The top of the inner wall of two water tanks (7) is provided with two electromagnetic valves, the second elastic hose (10) is in fixed connection with the electromagnetic valve, the bottom of the inner wall of two water tanks (7) is fixedly installed with a pump, the input end of the fixed pipe (11) is in fixed connection with the pump, one side of the base (1) is embedded with a controller (6), the controller (6) is in electric connection with the semiconductor refrigeration piece (13), the servo motor (21), the pump, the electromagnetic valve and the electric telescopic rod, and the top of the supporting plate (4) and one side, close to each other, of two arc-shaped plates (5) are provided with friction lines.

Images