Vertical welding device

Abstract

To provide a vertical welding device lower in cost and higher in connection efficiency than a method for connecting a metal pipe to a flange using a high-strength bolt.SOLUTION: This vertical welding device comprises: an internal support mechanism; a support mechanism; and at least one welding mechanism. By providing the support mechanism for supporting the welding mechanism in the outer wall of lower one of two adjacent metal pipes, the welding mechanism is provided so as to surround connection parts of the outer walls of the two adjacent metal pipes. By providing the liftable internal support mechanisms in the metal pipes, the internal support mechanisms are supported by the connection parts of the inner walls of the two adjacent metal pipes. When the welding mechanism is rotated with respect to the metal pipes, the welding mechanism welds the two adjacent metal pipes so as to surround them, thereby achieving vertical connection of the two adjacent metal pipes.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present application relates to the field of welding machine technology, and in particular to vertical welding devices. [Background technology]

[0002] In recent years, wind power technology has developed rapidly, and wind power is gradually becoming an important support for countries around the world's clean energy transition. Wind power towers are wind power tower poles that primarily play a supporting role in wind power generation equipment, while also absorbing equipment vibrations. As an important support structure that ensures the safe and stable operation of wind power generation equipment, wind power towers are made of rolled metal sheets to form metal tubes, and are usually manufactured and transported in multiple sections and assembled on site.

[0003] In current construction practice, both ends of a multi-section wind power tower are pre-welded with flanges forged from the steel material, and the multi-section wind power tower is transported to the installation site, where the adjacent towers are lifted and butted together, and then bolts are used to connect the flanges of the adjacent towers, thereby realizing the connection of the multi-section wind power tower.

[0004] However, the above method of connecting flanges using bolts is expensive and has low connection efficiency. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application provides a vertical welding device to solve the technical problems of high cost and low connection efficiency of bolt connection to flange of wind power tower. [Means for solving the problem]

[0006] To achieve the above objectives, the embodiments of the present application provide the following technical solutions.

[0007] The present application provides a vertical welding apparatus for welding two adjacent metal pipes that are connected vertically, the apparatus including an internal support mechanism, a support mechanism, and at least one welding mechanism; the internal support mechanism is to be provided inside the metal pipe, and the internal support mechanism moves up and down relative to the metal pipe so as to support a connection point between two adjacent metal pipes; the support mechanism is adapted to come into contact with an outer wall of the metal pipe that is located lower of the two adjacent metal pipes, The welding mechanism is provided on the support mechanism, and the welding mechanism surrounds a connection point between the outer walls of two adjacent metal pipes and rotates relative to the metal pipes in order to weld the two adjacent metal pipes together.

[0008] In one possible embodiment, the welding mechanism includes a load-bearing board, a support ring, at least one moving assembly, and a welding assembly provided on the moving assembly; the load-bearing board is for insertion into the metal pipe, and the load-bearing board is connected to the support mechanism; the support ring is mounted on the load-bearing board, the support ring being configured to be coaxial with the metal tube; The translation assembly is slidably coupled to an inner wall of the support ring, the welding assembly is coupled to the translation assembly, and the translation assembly rotates around the inner wall of the support ring to drive the welding assembly to rotate relative to the metal tube.

[0009] In one possible embodiment, the moving assembly includes a first mounting seat and at least one slider; the welding assembly is mounted on the first mounting seat; The slider is mounted on the first mounting seat, and the support ring is provided with an annular sliding groove, with a portion of the slider positioned within the annular sliding groove and moving annularly along the annular sliding groove.

[0010] In one possible embodiment, the welding assembly includes a second mounting seat and a welding head mounted on the second mounting seat, the second mounting seat being slidably coupled to the first mounting seat, and the welding head being adapted to face the metal pipe.

[0011] In one possible embodiment, the welding assembly further includes at least one rust removal member, the rust removal member being provided on the second mounting seat and spaced apart from the welding head, the rust removal member facing the metal pipe and used before the welding head.

[0012] In one possible embodiment, the support mechanism includes a support beam, a friction ring, and an expansion member; One end of the support beam abuts against the bottom surface of the load-bearing board, and the other end is connected to the friction ring, and the friction ring is configured to fit the metal pipe; The expansion and contraction member has one end connected to the bottom surface of the load-bearing board and the other end connected to the support beam, and the expansion and contraction member expands and contracts itself to drive the friction ring into contact with or away from the outer wall of the metal pipe in order to support or release the welding mechanism.

[0013] In one possible embodiment, the internal support mechanism includes an internal support baseboard, a jack member, and an internal support assembly; the internal support baseboard is for fastening to the inner wall of one of the metal pipes, and the jack member is located on the internal support baseboard; The inner support assembly is connected to the jack member, which pushes the inner support assembly up and down against the inner wall of the metal tube.

[0014] In one possible embodiment, the internal support assembly includes a first internal support ring and a second internal support ring fitted over the first internal support ring, the outer wall of the second internal support ring being adapted to contact the connection point between the inner walls of two adjacent metal tubes.

[0015] In one possible embodiment, the first inner support ring is provided with an electric heating element.

[0016] In one possible embodiment, the welding mechanism further includes at least two climbing members, which are arranged axially symmetrically on the outer wall of the metal tube to push the welding mechanism up and down relative to the metal tube, and the tops of the climbing members abut the bottom of the load-bearing board. [Effects of the Invention]

[0017] The vertical welding apparatus provided herein is used to weld two adjacent metal pipes that are connected vertically. A support mechanism for supporting a welding mechanism is provided on the outer wall of the lower of the two adjacent metal pipes, surrounding the joint between the outer walls of the two adjacent metal pipes. A vertically movable internal support mechanism is provided within the metal pipe, supporting the internal support mechanism at the joint between the inner walls of the two adjacent metal pipes. When the welding mechanism rotates relative to the metal pipes, the internal support mechanism allows the welding mechanism to weld the two adjacent metal pipes in a surrounding manner, thereby achieving a vertical connection between the two adjacent metal pipes. Compared to connecting metal pipes to flanges using high-strength bolts, this connection method saves on flange design costs and the process of connecting the flanges to the metal pipes, thereby reducing costs and improving connection efficiency. [Brief explanation of the drawings]

[0018] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the following will briefly describe the drawings that need to be used in the description of the embodiments or the prior art. Of course, the drawings in the following description are part of the embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without any creative work. Herein, the drawings are incorporated into the specification and constitute a part of this specification, show embodiments that are applicable to the present application, and are used to explain the principles of the present application together with the specification. [Figure 1] 1 is a structural schematic diagram of a vertical welding device provided by an embodiment of the present application; [Figure 2] 1. The above figures illustrate specific embodiments of the present application, and a more detailed description follows. These figures and written descriptions are not intended to limit the scope of the present concepts in any way, but rather to explain the present concepts to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to clarify the objectives, technical solutions, and advantages of the embodiments of the present application, the following will clearly and completely explain the technical solutions of the present application and how they solve the above technical problems using specific embodiments and with reference to the drawings of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Some of the following specific embodiments can be combined with each other, and the same or similar concepts or processes may no longer be described in some embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments in the present application without any creative work shall fall within the scope of protection of the present application.

[0020] The terms "first," "second," "third," "fourth," etc. (when present) in the present specification and claims and in the above drawings need not be used to describe a particular order or priority, but are merely used to distinguish between similar objects. It should be understood that such terms may be interchanged where appropriate, such that the present embodiments described herein can be practiced, for example, in an order other than that illustrated or described herein.

[0021] In the examples herein, terms such as "exemplary" or "for example" are used to denote an example, illustration, or explanation. Any embodiment or design described herein as "exemplary" or "for example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of terms such as "exemplary" or "for example" is intended to present the relevant concept in a concrete manner.

[0022] The support structure of a wind power device mainly consists of a base and a multi-tiered tower. The tower serves to raise the height of the wind turbine, positioning it to maximize wind energy, and also serves as a passageway for power transmission lines. As a high-altitude support structure, the wind turbine tower must be able to resist wind force, and its stability and structural strength are key to ensuring that the wind turbine is not affected.

[0023] Currently, wind power towers are made by winding metal sheets into a metal tube. After welding a single section of the tube, a support ring is installed inside the tower to prevent the metal tube from bending under its own weight or external forces, and flanges are pre-welded to both ends of the tower. Once the wind power tower is completed, the multi-section wind power tower is typically transported to the installation site, where it is lifted and assembled section by section. The tower is then butted against the lower tower, and the flanges of adjacent tower sections are connected using high-strength bolts to complete the assembly. Here, the flanges are forged from steel, which means that the flange cost per unit weight is much higher than the tower cost per unit weight, and the flange design costs are increased. Furthermore, connecting the flanges of two adjacent tower sections with high-strength bolts requires a flange-to-metal tube connection process, which not only increases labor costs but also reduces connection efficiency.

[0024] This application provides a vertical welding apparatus for welding two adjacent metal pipes that are connected vertically. The apparatus includes a support mechanism for supporting the welding mechanism on the outer wall of the lower of the two adjacent metal pipes, so that the welding mechanism surrounds the connection between the outer walls of the two adjacent metal pipes. A vertically movable internal support mechanism is also provided within the metal pipe, so that the internal support mechanism supports the connection between the inner walls of the two adjacent metal pipes. When the welding mechanism rotates relative to the metal pipes, the internal support mechanism allows the welding mechanism to weld the two adjacent metal pipes so that the two adjacent metal pipes are connected vertically. This connection method reduces flange design costs and the process of connecting the flanges to the metal pipes compared to methods that use high-strength bolts to connect metal pipes to flanges. Furthermore, the two adjacent metal pipes can be connected using a welding apparatus in a short operating time, further reducing labor costs and improving connection efficiency.

[0025] The technical solution of the present invention will be described in detail below using specific embodiments with reference to the accompanying drawings. Some of the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

[0026] As shown in FIGS. 1 and 2 , an embodiment of the present application provides a vertical welding apparatus for welding two adjacent metal tubes 100 that are vertically connected, the apparatus including an internal support mechanism 400, a support mechanism 300, and at least one welding mechanism 200, wherein the internal support mechanism 400 is to be installed inside the metal tube 100 and moves up and down relative to the metal tube 100 to support the connection point between the two adjacent metal tubes 100, the support mechanism 300 is to abut against the outer wall of the lower of the two adjacent metal tubes 100, and the welding mechanism 200 is installed in the support mechanism 300 and rotates relative to the metal tube 100 to surround and weld the two adjacent metal tubes 100 around the connection point between the outer walls of the two adjacent metal tubes 100.

[0027] 1 , two adjacent metal pipes 100 are butted together vertically, and a support mechanism 300 abuts against the outer wall of the metal pipe 100 located below. At least one welding mechanism 200 is slidably mounted on the support mechanism 300 so that the welding mechanism 200 faces the joint between the outer walls of the two adjacent metal pipes 100 and can rotate around the metal pipe 100 at the same height. An internal support mechanism 400 is further provided inside the metal pipe 100, and the internal support mechanism 400 moves up and down relative to the metal pipe 100 so that the internal support mechanism 400 is positioned at the joint between the inner walls of the two adjacent metal pipes 100. In other words, when the welding mechanism 200 surrounds and welds the joint between the outer walls of the two adjacent metal pipes 100, the internal support mechanism 400 supports the joint between the inner walls of the two adjacent metal pipes 100.

[0028] In a specific embodiment, for two vertically adjacent metal pipes 100, the lower metal pipe 100 is first fixed to the base surface, and the upper metal pipe 100 is lifted using a crane or other crane equipment and aligned with the opening of the lower metal pipe 100. The support mechanism 400 inside the lower metal pipe 100 is then moved upward and supported on the connecting point on the inner walls of the two adjacent metal pipes 100, ensuring alignment of the two adjacent metal pipes 100 and perpendicularity to the base surface. For example, as shown in Fig. 2, in this application, four welding mechanisms 200 surrounding the connecting point on the outer walls of the two adjacent metal pipes 100 are distributed axisymmetrically on the outer wall of the metal pipe 100, and when each welding mechanism 200 rotates a quarter turn in the circumferential direction of the metal pipe 100, all circumferential welding of the two adjacent metal pipes 100 is completed. This invention realizes a connection method in which two vertically adjacent metal pipes 100 are welded together by surrounding them, which saves the cost of flange design and the process of connecting the flange and the metal pipe, and reduces the overall cost of labor and materials. Moreover, by arranging multiple welding mechanisms 200, the invention can complete the welding work in a relatively short time, achieving high connection efficiency.

[0029] In the embodiment of the present application, the metal pipe 100 is a wind power tower, but in other embodiments, the material of the metal pipe 100 may be steel, aluminum alloy, magnesium alloy, copper alloy, titanium alloy, etc. Furthermore, the metal pipe 100 may have a fixed diameter or may be a variable diameter metal pipe 100 whose diameter gradually increases or decreases, as long as it is ensured that two adjacent metal pipes 100 have the same diameter at the butt joint to form an effective weld bead at the joint. The specific material and dimensions of the metal pipe 100 can be determined according to the actual usage scenario, and are not limited thereto in this embodiment.

[0030] In some embodiments, as shown in Figures 1 and 2, the welding mechanism 200 includes a load-bearing board 210, a support ring 220, at least one moving assembly 230, and a welding assembly 240 mounted on the moving assembly 230, wherein the load-bearing board 210 is for insertion into the metal tube 100 and the load-bearing board 210 is coupled to the support mechanism 300, the support ring 220 is mounted on the load-bearing board 210, and the support ring 220 is for being mounted coaxially with the metal tube 100, the moving assembly 230 is slidably coupled to an inner wall of the support ring 220, the welding assembly 240 is coupled to the moving assembly 230, and the moving assembly 230 rotates around the inner wall of the support ring 220 to drive the welding assembly 240 to rotate relative to the metal tube 100.

[0031] 1 , the welding mechanism 200 includes a load-bearing board 210, a support ring 220, at least one moving assembly 230, and a welding assembly 240 provided on the moving assembly 230. For example, the load-bearing board 210 may be an annular flat plate surrounded by the outer wall of the metal tube 100, and the load-bearing board 210 abuts on an upper side of the support mechanism 300 to support other components of the welding mechanism 200. The moving assemblies 230 are slidably provided on the inner wall of the support ring 220, and the moving assemblies 230 are provided in one-to-one correspondence with the welding assemblies 240. The welding assemblies 240 are oriented toward the connection points between the outer walls of two adjacent metal tubes 100. The moving assemblies 230 rotate at the same height on the inner wall of the support ring 220, thereby driving the welding assemblies 240 to weld the connection points between the outer walls of the two adjacent metal tubes 100. As shown in FIG. 2 , specifically, the support ring 220 is arranged coaxially with the metal tube 100, has a diameter larger than that of the metal tube 100, and can be attached to the load-bearing board 210 by means of rivets, welding, or the like. Furthermore, the movable welding assemblies 240 are arranged axially symmetrically on the support ring 220, which not only ensures the balance of the support ring 220 but also ensures the perpendicularity of the metal tube 100 during the welding process, improving the welding quality. Simultaneous operation of multiple welding assemblies 240 can improve the welding speed and achieve efficient joining of two adjacent metal tubes 100.

[0032] In some embodiments, as shown in FIG. 1 , the moving assembly 230 includes a first mounting seat 231 and at least one slider 232, the welding assembly 240 is mounted on the first mounting seat 231, the slider 232 is mounted on the first mounting seat 231, the support ring 220 is provided with an annular sliding groove 221, and a portion of the slider 232 is positioned within the annular sliding groove 221 and moves circularly along the annular sliding groove 221.

[0033] In the present application, as shown in FIG. 1 , the moving assembly 230 includes a first mounting seat 231 and a slider 232 provided on the first mounting seat 231, and the support ring 220 is provided with an annular sliding groove 221. For example, the slider 232 may be a roller, the roller shaft of the roller is movably connected to the first mounting seat 231, and a portion of the roller is slidably connected to the annular sliding groove 221. The slider 232 may also be a gear or the like, and accordingly, the annular sliding groove 221 on the inner wall of the support ring 220 is a rack that meshes with the gear, and the shape of the annular sliding groove 221 is set to match with the slider 232, and this embodiment is not limited thereto.

[0034] In a specific embodiment, for example, a first drive motor (not shown) is provided in the first mounting seat 231, and an output end of the first drive motor is connected to the slider 232 to drive the slider 232 to move circularly along the annular sliding groove 221 so that the moving assembly 230 continuously moves circularly at the same height on the inner wall of the support ring 220. In addition, a welding assembly 240 is provided in the first mounting seat 231, so that the welding assembly 240 can surround and weld the outer wall of the metal tube 100 when the slider 232 moves circularly along the annular sliding groove 221.

[0035] In some embodiments, as shown in Figures 1 and 2, the welding assembly 240 includes a second mounting seat 241 and a welding head 242 mounted on the second mounting seat 241, the second mounting seat 241 being slidably coupled to the first mounting seat 231, and the welding head 242 being adapted to face the metal tube 100.

[0036] In the present application, as shown in Figures 1 and 2, the welding assembly 240 includes a second mounting seat 241 slidably connected to the first mounting seat 231, and a welding head 242 is provided on the second mounting seat 241, and the welding head 242 faces the outer wall of the metal pipe 100.

[0037] In a specific embodiment, for example, a second drive motor (not shown) and a third drive motor (not shown) are provided in the first mounting seat 231, and an output end of the second drive motor is connected to a corresponding first transmission mechanism (not shown) in the second mounting seat 241 to drive the second mounting seat 241 to move closer to or away from the metal tube 100, thereby realizing the welding head 242 to move closer to or away from the metal tube 100. An output end of the third drive motor is connected to a corresponding second transmission mechanism (not shown) in the second mounting seat 241 to drive the second mounting seat 241 to move up and down relative to the metal tube 100, thereby adjusting the height of the welding head 242 to match the height of the connecting portion of the outer walls of two adjacent metal tubes 100, thereby ensuring effective contact between the welding head 242 and the connecting portion of the outer walls of two adjacent metal tubes 100 and ensuring welding quality. For example, the first transmission mechanism may be an extendable connecting rod structure, and the second transmission mechanism may be a sprocket chain, etc., and specific settings can be made based on the actual application scenario, and this embodiment is not limited thereto.

[0038] It can be understood that each drive motor in the first mounting seat 231 provides power for the movement of the slider 232 in the annular sliding groove 221 in the support ring 220, and also provides power for the horizontal and vertical movement of the second mounting seat 241 relative to the metal tube 100, so that in the present application, the annular movement of the moving assembly 230 and the horizontal and vertical movement of the welding module 240 can be simultaneously achieved, thereby realizing accurate positioning of the welding head 242 and the weld bead and effectively improving the work quality of the present apparatus. Note that each drive motor is merely an example in the present embodiment, and a hydraulic device or the like may be provided in the first mounting seat 231 as a driving member, and this embodiment is not limited thereto.

[0039] In the embodiment of the present application, the welding head 242 may employ stir friction welding, which uses frictional heat to highly plasticize the material at the connection point of the outer walls of two adjacent metal pipes 100, thereby welding the two adjacent metal pipes 100 together. Stir friction welding does not require specific requirements for the temperature, humidity, or wind speed of the working environment, and the working process does not produce environmental pollution such as radiation or smoke. Moreover, the mechanical properties of the weld bead are superior to those of the metal pipe 100 itself, so the weld bead does not affect the strength and rigidity of the metal pipe 100, thereby reducing the possibility of fatigue failure or fracture at the weld bead of the two adjacent metal pipes 100.

[0040] In some embodiments, the welding assembly 240 further includes at least one rust removal member 243, which is provided on the second mounting seat 241 and spaced apart from the welding head 242, and which faces the metal tube 100 and is used before the welding head 242.

[0041] In the present application, the rust removal member 243 is mounted on the second mounting seat 241 and spaced apart from the welding head 242. For example, when the vertical welding apparatus of the present application rotates the metal tube 100 clockwise to weld, i.e., when the moving assembly 230 rotates clockwise relative to the metal tube 100, as shown in FIG. 2 , the rust removal member 243 and the welding head 242 are sequentially mounted on the second mounting seat 241 at an interval in a clockwise direction. As the moving assembly 230 moves around, the rust removal member 243 comes into contact with the previously unwelded area. The rust removal member 243 may be an abrasive material with a high surface roughness. The abrasive material comes into contact with the rust on the weld bead, generating frictional force to polish the rust and ensure the quality of the welding of the present application to the adjacent metal tube 100. It should be noted that the vertical welding device of the present application may perform welding by surrounding the metal pipe 100 clockwise or counterclockwise, and the specific setting is determined according to the actual application, and this embodiment is not limited thereto. However, it should be noted that the installation positions of the rust removal member 243 and the welding head 242 are determined according to the surrounding direction during actual welding, and it is only necessary to ensure that the rust removal member 243 is used before the welding head 242.

[0042] In some embodiments, the support mechanism 300 includes a support beam 310, a friction ring 320, and an expandable member 330, wherein the support beam 310 has one end abutting the bottom surface of the load-bearing board 210 and the other end connected to the friction ring 320, the friction ring 320 being configured to fit over the metal tube 100, and the expandable member 330 has one end connected to the bottom surface of the load-bearing board 210 and the other end connected to the support beam 310, and the expandable member 330 expands and contracts to drive the friction ring 320 into contact with or away from the outer wall of the metal tube 100 in order to support or release the welding mechanism 200.

[0043] 1 , the support mechanism 300 includes a support beam 310, a friction ring 320, and an expansion / contraction member 330. One end of the support beam 310 may be connected to the bottom surface of the load-bearing board 210 by a hinge or the like, and the other end of the support beam 310 may be fixed to the friction ring 320 by welding or the like. The friction ring 320 abuts against the outer wall of the metal tube 100, generating a friction force between the outer wall of the metal tube 100 and the friction ring 320, thereby providing a vertical support force to the support mechanism 300. One end of the expansion / contraction member 330 is rotatably connected to the bottom surface of the load-bearing board 210, and the other end of the expansion / contraction member 330 is connected to the support beam 310. Specifically, the expansion / contraction member 330 itself extends to rotate the support beam 310 away from the metal tube 100 and move the friction ring 320 away from the outer wall of the metal tube 100, thereby releasing the support from the welded structure. Conversely, when the expandable member 330 shortens, the support beam 310 is rotated in a direction approaching the metal pipe 100, and the friction ring 320 is brought into contact with the outer wall of the metal pipe 100, thereby realizing support for the welding structure. In this way, support for and release of support from the welding mechanism 200 can be flexibly performed.

[0044] In some embodiments, the internal support mechanism 400 includes an internal support baseboard 420, a jack member 430, and an internal support assembly 410, wherein the internal support baseboard 420 is for attaching to the inner wall of one of the metal tubes 100, the jack member 430 is located on the internal support baseboard 420, the internal support assembly 410 is connected to the jack member 430, and the jack member 430 pushes the internal support assembly 410 to raise and lower it relative to the inner wall of the metal tube 100.

[0045] 1 and 2, an internal support mechanism 400 is provided within the metal pipe 100, an internal support baseboard 420 is fixed to the inner wall of the metal pipe 100 by welding or the like, and a jack member 430 is provided on the internal support baseboard 420. For example, the jack member 430 may be a lifting mechanism such as a jack, and the jack member 430 pushes the internal support assembly 410 attached to the inner wall of the metal pipe 100 to raise and lower it relative to the metal pipe 100. It will be understood that the internal support mechanism 400 can prevent deformation of the metal pipe 100 due to its own gravity or external force, ensure the verticality of the metal pipe 100, and ensure a good welding effect.

[0046] In some embodiments, the internal support assembly 410 includes a first internal support ring 411 and a second internal support ring 412 fitted over the outside of the first internal support ring 411, and the outer wall of the second internal support ring 412 is adapted to contact the connection point between the inner walls of two adjacent metal tubes 100.

[0047] In this application, the internal support assembly 410 is provided coaxially with the metal tube 100, and when the jack member 430 lifts the internal support assembly 410 upward, the outer wall of the second internal support ring 412 of the internal support assembly 410 comes into contact with the connection point between the inner walls of two adjacent metal tubes 100, and the first internal support ring 411 is fitted onto the inner wall of the second internal support ring 412. Note that the first internal support ring 411 may be a high-strength steel ring that utilizes its own rigidity to abut the first support ring 220 radially and bring the second internal support ring 412 into sufficient contact with the inner wall of the metal tube 100. The second internal support ring 412 is an annular structure whose surface has been treated with a ceramic coating. When the welding head 242 is positioned at the connection point of the outer wall of the adjacent metal pipe 100 to perform welding, the second internal support ring 412 supports the weld bead to prevent it from deforming during welding. In addition, ceramics have a high melting point, so that the highly plasticized metal in the weld bead does not adhere to the second internal support ring 412 during welding, thereby ensuring a good welding effect and improving the reliability of the connection between the adjacent metal pipes 100.

[0048] In some embodiments, the first inner support ring 411 is provided with an electric heating element 413 .

[0049] In this embodiment, the first inner support ring 411 is provided with an electric heating element 413. For example, the electric heating element 413 may be an electric heating sheet attached to the inner wall of the first inner support ring 411. When heated, the electric heating sheet generates heat, causing the first inner support ring 411 to thermally expand to a certain extent, resulting in a greater interaction force with the second inner support ring 412, thereby providing a greater internal support force for the inner wall of the metal tube 100. At the same time, the heat generated in the first inner support ring 411 is transferred via the second inner support ring 412 to the connection point between the inner walls of the two adjacent metal tubes 100, providing an initial welding temperature for the weld bead, which is beneficial to the welding efficiency and effect of metal tubes 100 with thick walls and high melting points.

[0050] In some embodiments, the welding mechanism further includes at least two climbing members 500, which are arranged axially symmetrically on the outer wall of the metal tube 100 to push the welding mechanism up and down relative to the metal tube 100, with the tops of the climbing members 500 abutting the bottom of the load-bearing board 210.

[0051] In an embodiment of the present application, as shown in FIG. 1 , climbing members 500, such as magnetic adsorption wall-climbing robots or negative pressure adsorption wall-climbing robots, are arranged axially symmetrically on the outer wall of the metal pipe 100, and the tops of the climbing members 500 can be abutted against the bottom of the load-bearing board 210. When the climbing members 500 climb upward, they can push up the welding mechanism 200 and move it closer to the weld bead. By adjusting the vertical position of the welding assembly 240, the welding head 242 can be aligned with the weld bead and precision welding can begin.

[0052] In a specific embodiment, the present application further includes a controller that establishes electrical connections between the moving assembly 230 and the welding assembly 240 of the welding mechanism 200, the jack member 430 and the electric heating member 413 of the internal support mechanism 400, and the telescopic member 330 and the climbing member 500 of the support mechanism 300, and provides automated control over the vertical welding apparatus through real-time signal feedback and data interaction to better complete the welding of two adjacent metal tubes 100.

[0053] For example, after the vertical welding device has finished welding the adjacent metal pipes 100 located at a lower position, the controller controls and extends the expansion member 330 to move the support beam 310 so that the friction ring 320 moves away from the outer wall of the metal pipe 100, thereby releasing the supporting action of the support beam 310 on the welding mechanism 200, and controls the upward climbing of the climbing member 500 to push the welding mechanism 200. When the welding mechanism 200 is located at the connecting point of the outer walls of the two adjacent metal pipes 100 located at a higher position, the upward climbing is stopped, and the support beam 310 moves the friction ring 320 away from the outer wall of the metal pipe 100. To drive the support beam 310 into contact with the outer wall of the metal pipe 100, the expansion and contraction member 330 is controlled to support the support beam 310 on the welding mechanism 200, and at this time, the controller controls the welding assembly 240 to adjust its vertical position relative to the welding head 242 so that the welding head and the welding head are accurately aligned, and then controls the welding head 242 to approach the welding head, and then the controller activates the moving assembly 230, which moves the welding assembly 240 to surround the outer wall of the metal pipe 100 and complete the surrounding welding. It can be understood that the controller may also be provided with a user monitoring interface so that an operator can intuitively and clearly monitor the operating status of the vertical welding apparatus.

[0054] Although the technical solution of the present application has been described above in relation to the preferred embodiments shown in the drawings, it is readily understood by those skilled in the art that the scope of protection of the present application is obviously not limited to these specific embodiments, and the above examples are only used to explain the technical solution of the present application, and are not intended to limit it. Although the present application has been described in detail with reference to the above examples, it should be understood by those skilled in the art that the technical solution described in the above examples may be modified or some or all of the technical features may be equivalently substituted, and such modifications or substitutions shall not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of each example of the present application.

[0055] Those skilled in the art will readily conceive other embodiments of the present application after considering and practicing the specification and the contents disclosed herein. The present application is not limited to the exact structures described above and shown in the drawings, and various modifications and alterations can be made without departing from the scope thereof. The present application is intended to cover any variations, uses, or adaptations of the present application that conform to the general principles of the present application and include common sense or customary technical means known in the art but not disclosed herein. The specification and examples are considered to be merely illustrative, and the scope of the present application is limited only by the appended claims.

[0056] Explanation of symbols 100-metal tube, 200 - welding mechanism, 210-load-bearing board, 220 - support ring, 221 - annular sliding groove, 230 - moving assembly, 231-First mounting seat, 232-slider, 240 - Welded assemblies, 241-Second mounting seat, 242 - welding head, 243-Rust removal components, 300-support mechanism, 310-support beam, 320 - friction ring, 330 - Telescopic members, 400-internal support mechanism, 410—Internal support assembly, 411—first inner support ring, 412—second inner support ring, 413 - Electric heating elements, 420 - Internal support baseboard, 430-jacking members, 500-Climbing members.

Claims

1. A vertical welding apparatus for welding two adjacent metal pipes that are connected vertically, comprising: an internal support mechanism, a support mechanism, and at least one welding mechanism; the internal support mechanism is to be provided within the metal pipe, and the internal support mechanism moves up and down relative to the metal pipe to support a connection point between two adjacent metal pipes; the support mechanism is adapted to come into contact with an outer wall of the metal pipe located lower of two adjacent metal pipes, the welding mechanism is provided on the support mechanism, and the welding mechanism surrounds a connection point between outer walls of two adjacent metal pipes and rotates relative to the metal pipes in order to weld the two adjacent metal pipes together. A vertical welding device characterized by:

2. the welding mechanism includes a load-bearing board, a support ring, at least one moving assembly, and a welding assembly mounted on the moving assembly; the load-bearing board is for insertion into the metal pipe, and the load-bearing board is connected to the support mechanism; the support ring is mounted on the load-bearing board, the support ring being configured to be coaxial with the metal tube; the translation assembly is slidably coupled to an inner wall of the support ring, the welding assembly is coupled to the translation assembly, and the translation assembly rotates about the inner wall of the support ring to drive the welding assembly to rotate relative to the metal tube; 2. The vertical welding apparatus according to claim 1.

3. the translation assembly includes a first mounting seat and at least one slider; the welding assembly is mounted on the first mounting seat; the slider is mounted on the first mounting seat, the support ring is provided with an annular sliding groove, and a portion of the slider is positioned within the annular sliding groove and moves annularly along the annular sliding groove; 3. The vertical welding apparatus according to claim 2.

4. the welding assembly includes a second mounting seat and a welding head mounted on the second mounting seat, the second mounting seat being slidably coupled to the first mounting seat, and the welding head being adapted to face the metal pipe; 4. The vertical welding apparatus according to claim 3.

5. The welding assembly further includes at least one rust removal member, the rust removal member being provided on the second mounting seat and spaced apart from the welding head, the rust removal member facing the metal pipe and used before the welding head.

5. The vertical welding apparatus according to claim 4.

6. the support mechanism includes a support beam, a friction ring, and an expansion member; The support beam has one end abutting the bottom surface of the load-bearing board and the other end connected to the friction ring, and the friction ring is configured to fit the metal pipe; The expansion and contraction member has one end connected to the bottom surface of the load-bearing board and the other end connected to the support beam, and the expansion and contraction member expands and contracts itself to drive the friction ring into contact with the outer wall of the metal pipe or away from the outer wall of the metal pipe in order to support or release the welding mechanism.

3. The vertical welding apparatus according to claim 2.

7. the internal support mechanism includes an internal support baseboard, a jack member, and an internal support assembly; the internal support baseboard is for fastening to the inner wall of one of the metal pipes, and the jack member is located on the internal support baseboard; the internal support assembly is connected to the jack member, and the jack member pushes the internal support assembly up and down against the inner wall of the metal tube; 2. The vertical welding apparatus according to claim 1.

8. The internal support assembly includes a first internal support ring and a second internal support ring fitted over the first internal support ring, and the outer wall of the second internal support ring is adapted to contact a connection point between the inner walls of two adjacent metal tubes.

8. The vertical welding apparatus according to claim 7.

9. the first inner support ring is provided with an electric heating element; 9. The vertical welding apparatus according to claim 8.

10. The welding mechanism further includes at least two climbing members, the climbing members being axially symmetrically provided on the outer wall of the metal pipe to push the welding mechanism up and down relative to the metal pipe, and the tops of the climbing members abutting against the bottom of the load-bearing board.

7. The vertical welding device according to claim 2, wherein the welding is performed by welding a plurality of welding points.

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