Vertical welding device

Abstract

The invention provides a vertical welding device, and belongs to the technical field of welding equipment, and the vertical welding device comprises an inner supporting mechanism, a supporting mechanism and at least one welding mechanism; a supporting mechanism is arranged on the outer wall of the lower metal pipe in every two adjacent metal pipes to support a welding mechanism, the welding mechanism is arranged at the joint of the outer walls of the two adjacent metal pipes in a surrounding mode, and a liftable inner supporting mechanism is arranged in each metal pipe to support the joint of the inner walls of the two adjacent metal pipes. When the welding mechanism rotates relative to the metal pipes, under the inner supporting action of the inner supporting mechanism, the welding mechanism can conduct surrounding welding on the two adjacent metal pipes, so that vertical connection of the two adjacent metal pipes is achieved, and compared with the metal pipes connected through high-strength bolts and flanges, the connecting mode is low in cost and high in connecting efficiency.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and more particularly to a vertical welding apparatus. Background Technology

[0002] In recent years, wind power technology has developed rapidly, and wind power has gradually become an important support for the clean energy transition of countries around the world. The wind turbine tower is the support structure of a wind turbine generator, primarily serving a supporting role while absorbing vibrations. As a crucial supporting structure ensuring the safe and stable operation of wind turbine generators, the wind turbine tower is made of rolled metal sheets into metal tubes, typically manufactured and transported in multiple sections, and assembled on-site.

[0003] In current engineering practice, flanges made of a single piece of steel are pre-welded to both ends of multi-section wind turbine towers. After transporting the multi-section wind turbine towers to the installation site, adjacent towers are hoisted and connected at the installation site, and the flanges on the adjacent towers are connected with bolts to achieve the connection of the multi-section wind turbine towers.

[0004] However, the above-mentioned method of using bolted flanges is costly and has low connection efficiency. Summary of the Invention

[0005] This application provides a vertical welding device to solve the technical problems of high cost and low connection efficiency of bolted flange connections to wind turbine towers.

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

[0007] This application provides a vertical welding device for welding two vertically connected adjacent metal pipes, including an internal support mechanism, a support mechanism and at least one welding mechanism;

[0008] The inner support mechanism is used to be installed inside the metal tube, and the inner support mechanism is raised and lowered relative to the metal tube to support the connection between two adjacent metal tubes;

[0009] The support mechanism is used to abut against the outer wall of the lower metal tube among two adjacent metal tubes;

[0010] The welding mechanism is mounted on the support mechanism and is used to surround the connection between the outer walls of two adjacent metal tubes. The welding mechanism rotates relative to the metal tubes to weld the two adjacent metal tubes.

[0011] In one possible implementation, the welding mechanism includes a load-bearing plate, a support ring, at least one movable component, and a welding component disposed on the movable component;

[0012] The load-bearing plate is used to be inserted into the metal pipe, and the load-bearing plate is connected to the support mechanism;

[0013] The support ring is disposed on the load-bearing plate, and the support ring is coaxially arranged with the metal tube;

[0014] The movable component is slidably connected to the inner wall of the support ring, and the welding component is connected to the movable component. The movable component rotates around the inner wall of the support ring to drive the welding component to rotate relative to the metal tube.

[0015] In one possible implementation, the movable component includes a first mounting base and at least one slider;

[0016] The welding assembly is mounted on the first mounting base;

[0017] The sliding member is disposed on the first mounting base, and the support ring is provided with an annular groove. The sliding member is partially located in the annular groove and moves circumferentially along the annular groove.

[0018] In one possible implementation, the welding assembly includes a second mounting base and a welding head disposed on the second mounting base, the second mounting base being slidably connected to the first mounting base, and the welding head being oriented toward the metal tube.

[0019] In one possible implementation, the welding assembly further includes at least one rust remover disposed on the second mounting base and spaced apart from the welding head, the rust remover facing the metal tube and positioned in front of the welding head.

[0020] In one possible implementation, the support mechanism includes a support beam, a friction ring, and a telescopic component;

[0021] One end of the support beam abuts against the bottom surface of the load-bearing plate, and the other end is connected to the friction ring, which is used to be sleeved on the metal tube;

[0022] One end of the telescopic component is connected to the bottom surface of the load-bearing plate, and the other end is connected to the support beam. The telescopic component extends and retracts to drive the friction ring to contact or move away from the outer wall of the metal tube, so as to support the welding mechanism or release the support of the welding mechanism.

[0023] In one possible implementation, the internal support mechanism includes an internal support base plate, a lifting member, and an internal support assembly;

[0024] The inner support base plate is used to be fixed to the inner wall of the metal tube, and the lifting member is located on the inner support base plate;

[0025] The inner support assembly is connected to the lifting member, which pushes the inner support assembly up and down relative to the inner wall of the metal tube.

[0026] In one possible implementation, the inner support assembly includes a first inner support ring and a second inner support ring sleeved outside the first inner support ring, wherein the outer wall of the second inner support ring is used to contact the connection between the inner walls of two adjacent metal tubes.

[0027] In one possible implementation, the first inner support ring is provided with an electric heating element.

[0028] In one possible implementation, at least two climbing members are also included, which are axially symmetrically arranged on the outer wall of the metal tube, with the top of the climbing members abutting against the bottom of the load-bearing plate to push the welding mechanism up and down relative to the metal tube.

[0029] This application provides a vertical welding device for welding two vertically connected adjacent metal pipes. A support mechanism is installed on the outer wall of the lower metal pipe of the two adjacent metal pipes to support the welding mechanism, which is arranged around the connection point of the outer walls of the two adjacent metal pipes. An adjustable inner support mechanism is installed inside the metal pipe, supporting the connection point of the inner walls of the two adjacent metal pipes. When the welding mechanism rotates relative to the metal pipes, under the inner support of the inner support mechanism, the welding mechanism can perform circumferential welding on the two adjacent metal pipes, thereby achieving a vertical connection between the two adjacent metal pipes. Compared to using high-strength bolts and flanges to connect metal pipes, this connection method saves on flange design costs and the connection process between the flange and the metal pipe, thus reducing costs and improving connection efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings included herein are incorporated in and constitute a part of this specification, illustrating embodiments consistent with this application, and together with the description are used to explain the principles of this application.

[0031] Figure 1 A schematic diagram of the structure of the vertical welding apparatus provided in the embodiments of this application;

[0032] Figure 2 for Figure 1 Top view.

[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100 - Metal tube;

[0036] 200 - Welding mechanism;

[0037] 210 - Load-bearing plate;

[0038] 220 - Support ring;

[0039] 221-Annular groove;

[0040] 230 - Mobile components;

[0041] 231 - First mounting bracket;

[0042] 232-Slider;

[0043] 240 - Welding assembly;

[0044] 241 - Second mounting bracket;

[0045] 242 - Welding head;

[0046] 243 - Rust-removed parts;

[0047] 300 - Supporting structure;

[0048] 310 - Support beam;

[0049] 320 - Friction Ring;

[0050] 330 - Telescopic component;

[0051] 400-Internal support mechanism;

[0052] 410 - Internal support component;

[0053] 411 - First inner support ring;

[0054] 412 - Second inner support ring;

[0055] 413 - Electric heating element;

[0056] 420-Internal support base plate;

[0057] 430 - Lifting component;

[0058] 500-climbing component. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application and how they solve the aforementioned technical problems will be clearly and completely described below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0061] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0062] The supporting structure of wind power generation equipment mainly consists of a base and multiple tower sections. The tower section serves to raise the height of the wind turbine, placing it at the optimal position for maximizing wind energy, and also acts as a conduit for transmission lines. As a high-altitude supporting structure, the wind turbine tower needs to withstand strong winds; its stability and structural strength are crucial to ensuring the wind turbine remains unaffected.

[0063] Currently, wind turbine towers are made of rolled metal tubes from sheet metal. After each section is welded, a support ring is installed inside the tower to prevent bending and deformation under its own weight or external forces. Flanges are also pre-welded to both ends of the tower. After the wind turbine towers are manufactured, multiple sections are typically transported to the installation site. At the installation site, they are hoisted section by section and connected to the tower below. High-strength bolts are then used to connect the flanges on adjacent tower sections, thus assembling the wind turbine tower. The flanges are forged from a single piece of steel, making the cost per unit weight of the flange significantly higher than that of the tower itself, and also increasing the design cost of the flanges. Furthermore, connecting the flanges of adjacent tower sections with high-strength bolts requires a connection process between the flanges and the metal tubes, resulting in high labor costs and low connection efficiency.

[0064] Therefore, this application provides a vertical welding device for welding two vertically connected adjacent metal pipes. A support mechanism is provided on the outer wall of the lower metal pipe of the two adjacent metal pipes to support the welding mechanism, which is arranged around the connection point of the two adjacent metal pipes. An adjustable inner support mechanism is provided inside the metal pipe, supporting the connection point of the two adjacent metal pipes. When the welding mechanism rotates relative to the metal pipe, under the inner support of the inner support mechanism, the welding mechanism can perform circumferential welding on the two adjacent metal pipes, thereby achieving a vertical connection between the two adjacent metal pipes. Therefore, this connection method, compared to using high-strength bolts and flanges to connect the metal pipes, can save on flange design costs and the flange-to-metal-pipe connection process. Furthermore, by using the welding device to connect the two adjacent metal pipes in a shorter working time, labor costs can be further reduced, and the connection efficiency is high.

[0065] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0066] like Figure 1 and Figure 2 As shown, this application embodiment provides a vertical welding device for welding two vertically connected adjacent metal pipes 100, including an inner support mechanism 400, a support mechanism 300, and at least one welding mechanism 200; the inner support mechanism 400 is disposed inside the metal pipe 100, and the inner support mechanism 400 is raised and lowered relative to the metal pipe 100 to support the connection of the inner walls of the two adjacent metal pipes 100; the support mechanism 300 is used to abut against the outer wall of the lower metal pipe 100 of the two adjacent metal pipes 100; the welding mechanism 200 is disposed on the support mechanism 300, and the welding mechanism 200 is used to surround the connection of the outer walls of the two adjacent metal pipes 100, and the welding mechanism 200 rotates relative to the metal pipe 100 to surround and weld the two adjacent metal pipes 100.

[0067] In this application, as Figure 1As shown, two adjacent metal pipes 100 are joined vertically. A support mechanism 300 abuts against the outer wall of the lower metal pipe 100. At least one welding mechanism 200 is slidably arranged on the support mechanism 300, so that the welding mechanism 200 faces the connection point of the outer walls of the two adjacent metal pipes 100, and the welding mechanism 200 can rotate around the metal pipe 100 at the same height. An inner support mechanism 400 is also provided inside the metal pipe 100. The inner support mechanism 400 is raised and lowered relative to the metal pipe 100 so that the inner support mechanism 400 is located at the connection point of the inner walls of the two adjacent metal pipes 100. That is, when the welding mechanism 200 is performing circumferential welding at the connection point of the outer walls of the two adjacent metal pipes 100, the inner support mechanism 400 provides support at the connection point of the inner walls of the two adjacent metal pipes 100.

[0068] In a specific implementation, for two adjacent metal pipes 100 in the vertical direction, the lower metal pipe 100 is first fixed to the foundation surface. The upper metal pipe 100 can then be lifted using a crane or other lifting equipment and connected to the opening of the lower metal pipe 100. The inner support mechanism 400 within the lower metal pipe 100 is then moved upwards, supporting it at the connection point of the inner walls of the two adjacent metal pipes 100, ensuring alignment of the two adjacent metal pipes 100 and their verticality relative to the foundation surface. For example, such as... Figure 2 As shown, this application symmetrically distributes four welding mechanisms 200 on the outer wall of the metal pipe 100. Each welding mechanism 200 surrounds the connection point of the outer walls of two adjacent metal pipes 100. When each welding mechanism 200 rotates one-quarter of its circumference relative to the metal pipe 100, the circumferential welding of the two adjacent metal pipes 100 is completed. This application achieves a connection method of circumferential welding of two vertically adjacent metal pipes 100, saving the design cost of flanges and the connection process between flanges and metal pipes, reducing the overall cost of manpower and material resources. Furthermore, by arranging multiple welding mechanisms 200, this application can complete the welding operation in a shorter time, thus achieving higher connection efficiency.

[0069] It should be noted that in this embodiment, the metal pipe 100 is a wind turbine tower. In other embodiments, the metal pipe 100 can be made of steel, aluminum alloy, magnesium alloy, copper alloy, titanium alloy, etc. Furthermore, the metal pipe 100 can be a fixed diameter or a variable diameter pipe 100 with gradually increasing or decreasing diameter, as long as adjacent metal pipes 100 have the same diameter at the joint to form an effective weld. The specific material and dimensions of the metal pipe 100 can be determined according to the actual application scenario, and this embodiment does not impose any limitations on this.

[0070] In some embodiments, such as Figure 1 and Figure 2As shown, the welding mechanism 200 includes a load-bearing plate 210, a support ring 220, at least one movable component 230, and a welding component 240 disposed on the movable component 230. The load-bearing plate 210 is inserted into the metal pipe 100 and is connected to the support mechanism 300. The support ring 220 is disposed on the load-bearing plate 210 and is coaxially arranged with the metal pipe 100. The movable component 230 is slidably connected to the inner wall of the support ring 220, and the welding component 240 is connected to the movable component 230. The movable component 230 rotates around the inner wall of the support ring 220 to drive the welding component 240 to rotate relative to the metal pipe 100.

[0071] like Figure 1 As shown, the welding mechanism 200 includes a load-bearing plate 210, a support ring 220, at least one movable component 230, and a welding component 240 disposed on the movable component 230. For example, the load-bearing plate 210 can be an annular plate, surrounding the outer wall of the metal pipe 100, and the load-bearing plate 210 abuts against the support mechanism 300 to support other components of the welding mechanism 200. The movable component 230 is slidably disposed on the inner wall of the support ring 220. The movable component 230 and the welding component 240 are arranged in a one-to-one correspondence. The welding component 240 faces the connection point of the outer walls of two adjacent metal pipes 100. The movable component 230 rotates at the same height on the inner wall of the support ring 220, thereby driving the welding component 240 to weld the connection point of the outer walls of the two adjacent metal pipes 100. Figure 2 As shown, specifically, the support ring 220 is coaxially arranged with the metal tube 100. The support ring 220 has a larger diameter than the metal tube 100. The support ring 220 can be set on the load-bearing plate 210 by riveting, welding or other methods. Furthermore, by symmetrically arranging multiple movable welding components 240 on the support ring 220, not only can the balance of the support ring 220 be ensured, but the perpendicularity of the metal tube 100 during the welding process can also be ensured, thereby improving the welding quality. The simultaneous operation of multiple welding components 240 can also increase the welding speed, thereby achieving efficient connection of two adjacent metal tubes 100.

[0072] In some embodiments, such as Figure 1 As shown, the moving component 230 includes a first mounting base 231 and at least one slider 232; the welding component 240 is disposed on the first mounting base 231; the slider 232 is disposed on the first mounting base 231, and the support ring 220 is provided with an annular groove 221, the slider 232 is partially located in the annular groove 221 and moves circumferentially along the annular groove 221.

[0073] In this application, as Figure 1As shown, the movable component 230 includes a first mounting base 231 and a slider 232 disposed on the first mounting base 231. The support ring 220 is provided with an annular groove 221. For example, the slider 232 can be a roller, the roller shaft is movably connected to the first mounting base 231, and part of the roller is slidably connected in the annular groove 221. It should be noted that the slider 232 can also be a gear, etc. Correspondingly, the annular groove 221 on the inner wall of the support ring 220 is a rack that meshes with the gear. The form of the annular groove 221 is matched with the slider 232. This embodiment does not limit this.

[0074] In a specific embodiment, for example, a first drive motor (not shown in the figure) is provided in the first mounting base 231. The output end of the first drive motor is connected to the sliding member 232, driving the sliding member 232 to move circumferentially along the annular groove 221, so as to realize that the moving component 230 moves circumferentially at the same height on the inner wall of the support ring 220. In addition, a welding component 240 is also provided on the first mounting base 231, so that when the sliding member 232 moves circumferentially along the annular groove 221, the welding component 240 can perform circumferential welding around the outer wall of the metal tube 100.

[0075] In some embodiments, such as Figure 1 and Figure 2 As shown, the welding assembly 240 includes a second mounting base 241 and a welding head 242 disposed on the second mounting base 241. The second mounting base 241 is slidably connected to the first mounting base 231, and the welding head 242 is used to face the metal tube 100.

[0076] In this application, as Figure 1 and Figure 2 As shown, the welding assembly 240 includes a second mounting base 241, which is slidably connected to the first mounting base 231, and a welding head 242 is provided on the second mounting base 241, with the welding head 242 facing the outer wall of the metal tube 100.

[0077] In a specific embodiment, for example, the first mounting base 231 is further provided with a second drive motor (not shown in the figures) and a third drive motor (not shown in the figures). The output end of the second drive motor is connected to the corresponding first transmission mechanism (not shown in the figures) within the second mounting base 241 to drive the second mounting base 241 to move closer to or away from the metal tube 100, thereby enabling the welding head 242 to move closer to or away from the metal tube 100. The output end of the third drive motor is connected to the corresponding second transmission mechanism (not shown in the figures) within the second mounting base 241 to drive the second mounting base 241 to move up and down relative to the metal tube 100, thereby adjusting the height of the welding head 242 to be consistent with the height of the connection between the outer walls of two adjacent metal tubes 100. This ensures effective contact between the welding head 242 and the connection between the outer walls of two adjacent metal tubes 100, thus ensuring welding quality. For example, the first transmission mechanism can be a linkage telescopic structure, and the second transmission mechanism can be a sprocket chain, etc. The specific configuration can be determined according to the actual application scenario, and this embodiment does not impose any limitations on this.

[0078] It is understood that the drive motors within the first mounting base 231 provide power for the movement of the sliding member 232 in the annular groove 221 on the support ring 220, and also provide power for the horizontal and vertical movement of the second mounting base 241 relative to the metal tube 100. Therefore, this application can simultaneously realize the circumferential movement of the moving component 230 and the horizontal and vertical movement of the welding component 240, thereby achieving precise positioning of the welding head 242 and the weld seam, effectively improving the operational quality of this device. It should be noted that the drive motors in this embodiment are only provided as examples, and hydraulic devices or the like can also be provided within the first mounting base 231 as drive components; this embodiment does not impose any limitations on this.

[0079] In this embodiment, the welding head 242 can be achieved using friction stir welding. Friction heat is used 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. Friction stir welding has no requirements regarding the temperature, humidity, or wind speed of the working environment, and the process produces no radiation, dust, or other environmental pollution. Furthermore, the mechanical properties of the weld are superior to those of the metal pipes 100 themselves. Therefore, the weld has no impact on the strength and stiffness of the metal pipes 100, thus reducing the possibility of fatigue failure or fracture of the two adjacent metal pipes 100 at the weld joint.

[0080] In some embodiments, the welding assembly 240 further includes at least one rust remover 243 disposed on the second mounting base 241 and spaced apart from the welding head 242, with the rust remover 243 facing the metal tube 100 and positioned in front of the welding head 242.

[0081] In this application, the rust-removing component 243 is disposed on the second mounting base 241 and spaced apart from the welding head 242; exemplarily, if the vertical welding device of this application rotates clockwise around the metal tube 100 for welding, that is, the moving component 230 rotates clockwise around the metal tube 100, as... Figure 2 As shown, the rust-removing component 243 and the welding head 242 are arranged sequentially and at intervals on the second mounting base 241 in a clockwise direction. Under the rotational movement of the moving component 230, the rust-removing component 243 first contacts the unwelded area. The rust-removing component 243 can be a grinding disc with a large surface roughness. The grinding disc contacts the rust at the weld seam and generates friction to grind the rust, thereby ensuring the quality of welding adjacent metal pipes 100 in this application. It should be noted that the vertical welding device of this application can perform circumferential welding around the metal pipe 100 in a clockwise direction or in a counterclockwise direction, depending on the actual application. This embodiment does not limit this, but it should be noted that the arrangement position of the rust-removing component 243 and the welding head 242 is determined by the actual circumferential direction during welding, ensuring that the rust-removing component 243 is used before the welding head 242.

[0082] In some embodiments, the support mechanism 300 includes a support beam 310, a friction ring 320, and a telescopic member 330; one end of the support beam 310 abuts against the bottom surface of the load-bearing plate 210, and the other end is connected to the friction ring 320, which is used to be sleeved on the metal tube 100; one end of the telescopic member 330 is connected to the bottom surface of the load-bearing plate 210, and the other end is connected to the support beam 310; the telescopic member 330 extends and retracts to drive the friction ring 320 to contact or move away from the outer wall of the metal tube 100, so as to support the welding mechanism 200 or release the welding mechanism 200.

[0083] In this application, as Figure 1As shown, the support mechanism 300 includes a support beam 310, a friction ring 320, and a telescopic member 330. One end of the support beam 310 can be connected to the bottom surface of the load-bearing plate 210 by means of hinge or other means, and the other end of the support beam 310 can be fixed to the friction ring 320 by means of welding or other means. The friction ring 320 abuts against the outer wall of the metal pipe 100, and the friction ring 320 provides vertical support force to the support mechanism 300 by generating friction between itself and the outer wall of the metal pipe 100. One end of the telescopic member 330 is rotatably connected to the bottom surface of the load-bearing plate 210. The other end of the 0 is connected to the support beam 310. Specifically, the telescopic member 330 extends to drive the support beam 310 to rotate away from the metal tube 100, so that the friction ring 320 moves away from the outer wall of the metal tube 100, thereby releasing the support for the welded structure. Conversely, when the telescopic member 330 shortens, it drives the support beam 310 to rotate closer to the metal tube 100, so that the friction ring 320 is in close contact with the outer wall of the metal tube 100, thereby supporting the welded structure. In this way, the welding mechanism 200 can be flexibly supported or unsupported.

[0084] In some embodiments, the inner support mechanism 400 includes an inner support base plate 420, a lifting member 430, and an inner support assembly 410; the inner support base plate 420 is fixed to the inner wall of a metal tube 100, and the lifting member 430 is located on the inner support base plate 420; the inner support assembly 410 is connected to the lifting member 430, and the lifting member 430 pushes the inner support assembly 410 to rise and fall relative to the inner wall of the metal tube 100.

[0085] In this application, as Figure 1 and Figure 2 As shown, the inner support mechanism 400 is disposed inside the metal tube 100. The inner support base plate 420 is fixed to the inner wall of the metal tube 100 by welding or other means. A lifting member 430 is disposed on the inner support base plate 420. For example, the lifting member 430 can be a lifting mechanism such as a jack. The lifting member 430 pushes the inner support assembly 410 attached to the inner wall of the metal tube 100 to rise and fall relative to the metal tube 100. It can be understood that the inner support mechanism 400 can prevent the metal tube 100 from deforming under its own weight or external force, thereby ensuring the verticality of the metal tube 100 and thus ensuring a good welding effect.

[0086] In some embodiments, the inner support assembly 410 includes a first inner support ring 411 and a second inner support ring 412 sleeved outside the first inner support ring 411, wherein the outer wall of the second inner support ring 412 is used to contact the connection between the inner walls of two adjacent metal tubes 100.

[0087] In this application, the inner support assembly 410 is coaxially arranged with the metal tube 100. The inner support assembly 410 is lifted upward by the lifting member 430, so that the outer wall of the second inner support ring 412 of the inner support assembly 410 contacts the connection of the inner walls of two adjacent metal tubes 100, and the first inner support ring 411 is sleeved on the inner wall of the second inner support ring 412. It should be noted that the first inner support ring 411 can be a high-strength steel ring, which uses its own rigidity to radially abut against the first support ring 220, so that the second inner support ring 412 can fully contact the inner wall of the metal pipe 100. In addition, the second inner support ring 412 is a ring-shaped structural component with ceramic surface treatment. When the welding head 242 is welded at the connection of the outer wall of the adjacent metal pipe 100, the second inner support ring 412 plays a supporting role for the weld, so as to avoid the weld from deforming during the welding process. Moreover, due to the high melting point of ceramic, the highly plasticized metal at the weld will not stick to the second inner support ring 412 during the welding process, thereby ensuring a good welding effect and improving the reliability of the connection between adjacent metal pipes 100.

[0088] In some embodiments, the first inner support ring 411 is provided with an electric heating element 413.

[0089] In this embodiment of the application, the first inner support ring 411 is provided with an electric heating element 413. For example, the electric heating element 413 can be an electric heating plate attached to the inner wall of the first inner support ring 411. After the electric heating plate is heated, it generates heat, which can cause the first inner support ring 411 to undergo a certain degree of thermal expansion, so as to have a greater interaction force on 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 by the first inner support ring 411 is transferred to the connection of the inner walls of two adjacent metal tubes 100 through the second inner support ring 412, that is, to provide the initial welding temperature for the weld, which is beneficial to the welding efficiency and welding effect of the metal tube 100 with thicker wall and higher melting point.

[0090] In some embodiments, at least two climbing members 500 are also included, which are axially symmetrically arranged on the outer wall of the metal tube 100. The top of the climbing member 500 abuts against the bottom of the load-bearing plate 210 to push the welding mechanism 200 to rise and fall relative to the metal tube 100.

[0091] In the embodiments of this application, such as Figure 1 As shown, climbing components 500, such as magnetic adsorption climbing robots or negative pressure adsorption climbing robots, can be symmetrically arranged on the outer wall of the metal tube 100. The top of the climbing component 500 abuts against the bottom of the load-bearing plate 210. When the climbing component 500 climbs upward, it can push the welding mechanism 200 upward so that the welding mechanism 200 moves to the vicinity of the weld. By adjusting the position of the welding assembly 240 in the vertical direction, the welding head 242 is aligned with the weld, thereby starting to carry out precise welding.

[0092] In a specific embodiment, this application also includes a controller, which establishes an electrical connection with the moving component 230 and welding component 240 of the welding mechanism 200, the lifting component 430 and electric heating component 413 of the inner support mechanism 400, the telescopic component 330 and climbing component 500 of the support mechanism 300, and automatically controls the vertical welding device through real-time signal feedback and data interaction, so as to better complete the welding of two adjacent metal pipes 100.

[0093] For example, after the vertical welding device finishes welding the adjacent metal pipes 100 at the lower position, the controller can control the telescopic component 330 to extend, so that the support beam 310 drives the friction ring 320 away from the outer wall of the metal pipe 100, thereby relieving the support of the support beam 310 on the welding mechanism 200. The controller further controls the climbing component 500 to push the welding mechanism 200 upward. When the welding mechanism 200 is at the connection point of the outer walls of the two adjacent metal pipes 100 at the higher position, the climbing stops, and the telescopic component 330 is then controlled to shorten, so that the support beam 310 drives the friction ring 320 to contact the outer wall of the metal pipe 100, thereby supporting the welding mechanism 200. At this time, the controller controls the welding assembly 240 to adjust its position relative to the weld in the vertical direction, so that the welding head 242 is precisely aligned with the weld. Then, the controller controls the welding head 242 to move closer to the weld. After that, the controller activates the moving component 230, which drives the welding assembly 240 to complete the circumferential welding around the outer wall of the metal pipe 100. Understandably, the controller can also be equipped with a user monitoring interface, enabling operators to intuitively and clearly monitor the operation of the vertical welding device.

[0094] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0095] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the scope of this application is limited only by the appended claims.

Claims

1. A vertical welding device for welding two adjacent metal pipes connected vertically, characterized in that, Includes an internal support mechanism, a supporting mechanism, and at least one welding mechanism; The inner support mechanism is used to be installed inside the metal tube, and the inner support mechanism is raised and lowered relative to the metal tube to support the connection between two adjacent metal tubes; The support mechanism is used to abut against the outer wall of the lower metal tube among two adjacent metal tubes; The welding mechanism is mounted on the support mechanism and is used to surround the connection between the outer walls of two adjacent metal tubes. The welding mechanism rotates relative to the metal tubes to weld the two adjacent metal tubes.

2. The vertical welding device according to claim 1, characterized in that, The welding mechanism includes a load-bearing plate, a support ring, at least one movable component, and a welding component disposed on the movable component; The load-bearing plate is used to be inserted into the metal pipe, and the load-bearing plate is connected to the support mechanism; The support ring is disposed on the load-bearing plate, and the support ring is coaxially arranged with the metal tube; The movable component is slidably connected to the inner wall of the support ring, and the welding component is connected to the movable component. The movable component rotates around the inner wall of the support ring to drive the welding component to rotate relative to the metal tube.

3. The vertical welding device according to claim 2, characterized in that, The movable component includes a first mounting base and at least one slider; The welding assembly is mounted on the first mounting base; The sliding member is disposed on the first mounting base, and the support ring is provided with an annular groove. The sliding member is partially located in the annular groove and moves circumferentially along the annular groove.

4. The vertical welding device according to claim 3, characterized in that, The welding assembly includes a second mounting base and a welding head disposed on the second mounting base. The second mounting base is slidably connected to the first mounting base, and the welding head is used to face the metal tube.

5. The vertical welding apparatus according to claim 4, characterized in that, The welding assembly further includes at least one rust removal component, which is disposed on the second mounting base and spaced apart from the welding head. The rust removal component faces the metal tube and is positioned in front of the welding head.

6. The vertical welding apparatus according to claim 2, characterized in that, The support mechanism includes a support beam, a friction ring, and a telescopic component; One end of the support beam abuts against the bottom surface of the load-bearing plate, and the other end is connected to the friction ring, which is used to be sleeved on the metal tube; One end of the telescopic component is connected to the bottom surface of the load-bearing plate, and the other end is connected to the support beam. The telescopic component extends and retracts to drive the friction ring to contact or move away from the outer wall of the metal tube, so as to support the welding mechanism or release the support of the welding mechanism.

7. The vertical welding apparatus according to claim 1, characterized in that, The internal support mechanism includes an internal support base plate, a lifting component, and an internal support assembly; The inner support base plate is used to be fixed to the inner wall of the metal tube, and the lifting member is located on the inner support base plate; The inner support assembly is connected to the lifting member, which pushes the inner support assembly up and down relative to the inner wall of the metal tube.

8. The vertical welding apparatus according to claim 7, characterized in that, The inner support assembly includes a first inner support ring and a second inner support ring sleeved outside the first inner support ring. The outer wall of the second inner support ring is used to contact the connection between the inner walls of two adjacent metal tubes.

9. The vertical welding apparatus according to claim 8, characterized in that, The first inner support ring is equipped with an electric heating element.

10. The vertical welding apparatus according to any one of claims 2-6, characterized in that, It also includes at least two climbing members, which are axially symmetrically arranged on the outer wall of the metal tube. The top of the climbing members abuts against the bottom of the load-bearing plate to push the welding mechanism up and down relative to the metal tube.

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