Automatic welding device for extra-high voltage steel tube tower

Abstract

The invention relates to the technical field of steel pipe welding, and provides an automatic welding device for an extra-high voltage steel pipe tower, which comprises a plurality of clamping pieces oppositely arranged on a bearing frame; the fixing piece is arranged on the bearing frame in a relatively sliding mode, the fixing piece is used for fixing the flange, and the fixing piece is configured to be close to or far away from the clamping piece after sliding so that the flange can be close to or far away from the clamping piece; the welding support is arranged on the bearing frame in a relatively sliding mode, the welding support is configured to be close to or away from the clamping piece after sliding, a welding gun is rotationally arranged on the welding support and used for welding a gap between the flange and the steel pipe, the welding gun inclines towards the sliding direction of the welding support, and the welding gun is configured to change the orientation angle of the welding gun after rotating. And the welding gun is used for welding the inner seam or the outer seam. By means of the technical scheme, the technical problems that in the prior art, a welding device can only meet outer face welding or inner face welding of a steel pipe, welding stations need to be switched when strength needs to be improved, and welding efficiency is affected are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of steel pipe welding, and specifically, to an automatic welding device for extra-high voltage steel pipe towers. Background Art

[0002] With the rapid development of social economy, electricity, as an indispensable energy source in modern society, shows a continuous growth trend in demand. To meet the demand for large-scale and long-distance power transmission, high-voltage, extra-high voltage, and ultra-high voltage transmission lines have been widely constructed. In the infrastructure of transmission lines, as a key structure for supporting conductors, lightning conductors, etc., the performance and quality of the tower directly relate to the safe and stable operation of the power system.

[0003] As a type of steel pipe tower, the extra-high voltage steel pipe tower has a larger pipe diameter for its frame due to its higher transmission voltage, usually pipes with a diameter of 325 or above. When welding the upper flange of the pillar of the high-voltage steel pipe tower, inner welding and outer welding are required to improve the connection strength of the steel pipe. Existing welding devices can only meet either outer welding or inner welding, so different welding stations need to be replaced during actual production to meet the welding operation requirements. However, the steel pipe itself is very heavy, so it is very difficult to handle the steel pipe. Frequent switching of welding stations will spend a lot of time in the handling process, resulting in a significant reduction in the efficiency of the welding operation. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present disclosure provide an automatic welding device for extra-high voltage steel pipe towers, which solves the technical problem that the existing welding device can only meet the outer welding or inner welding of steel pipes and needs to switch welding stations to achieve welding, affecting the welding efficiency.

[0005] According to one aspect, at least one embodiment of the present disclosure provides an automatic welding device for extra-high voltage steel pipe towers, including: A carrier frame; Clamping members, several of which are oppositely arranged on the carrier frame, and the several clamping members are used for clamping the steel pipe; A fixing member, which is relatively slidably arranged on the carrier frame, the fixing member is used for fixing the flange, and the fixing member is configured to slide closer to or away from the clamping members so that the flange approaches or moves away from the clamping members; A welding bracket, which is relatively slidably arranged on the carrier frame, the welding bracket is configured to slide closer to or away from the clamping members, a welding torch is rotatably arranged on the welding bracket, the welding torch is used for welding the gap between the flange and the steel pipe, the orientation of the welding torch is inclined to the sliding direction of the welding bracket, and the welding torch is configured to rotate to change the orientation angle of the welding torch so that the welding torch welds the inner seam or the outer seam.

[0006] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, the clamping member is detachably arranged on the carrier frame.

[0007] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, the clamping member includes: A fixed seat, which is detachably arranged on the carrier frame; A first fixed clamp, which is arranged on the fixed seat; A second fixed clamp, which is rotatably arranged at one end of the first fixed clamp. A fixing space is formed between the first fixed clamp and the second fixed clamp, and the second fixed clamp is configured to open or close the fixing space after rotation.

[0008] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, there are a number of screw holes on the first fixed clamp and the second fixed clamp, and further includes: Adjusting blocks, which are provided in several numbers and are slidably arranged on the first fixed clamp or the second fixed clamp. An adjusting screw is rotatably arranged on the adjusting block, and the adjusting screw is in threaded cooperation with the screw hole. The adjusting screw is used to drive the adjusting block to slide. The several adjusting blocks are configured to approach or move away from each other after sliding, and the several adjusting blocks are used to carry the steel pipe.

[0009] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, the clamping member further has a carrying roller, which is rotatably arranged on the adjusting block. After the steel pipe is installed, the carrying roller abuts against the steel pipe, and the adjusting block carries the steel pipe through the carrying roller.

[0010] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, the fixing member has a through - hole and a number of through - grooves arranged in a circumferential array along the through - hole. The through - hole is used to reserve a position for the welding torch to pass through, so that the welding torch welds the inner wall of the gap between the flange and the steel pipe. The several through - grooves are used to cooperate with fastening bolts to fix flanges of different sizes.

[0011] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, a sliding seat is slidably arranged on the carrier frame. The clamping member, the fixing member and the welding bracket are all located on the sliding seat, and the sliding seat is configured to approach or move away from the ground after sliding.

[0012] For example, in an automatic welding device for an ultra - high - voltage steel pipe tower provided by at least one embodiment of the present disclosure, a mounting block is detachably arranged on the fixed seat. A clamping space is formed between the mounting block and the fixed seat, and the clamping space is used to clamp the sliding seat.

[0013] For example, in an automatic welding device for an ultra-high voltage steel pipe tower provided by at least one embodiment of the present disclosure, it further includes: a supporting table, which is arranged on the ground foundation and on one side of the supporting table. There is a supporting groove on the supporting table, and the supporting groove and the clamping member jointly support the steel pipe.

[0014] For example, in an automatic welding device for an ultra-high voltage steel pipe tower provided by at least one embodiment of the present disclosure, it further includes: Moving rollers, several of which are rotatably arranged in the supporting groove, and several of the moving rollers are in contact with the outer wall of the steel pipe.

[0015] The beneficial effects of the embodiments of the present disclosure are as follows: In the present disclosure, through the design of a slidable welding bracket and a rotatable welding torch, there is no need to frequently change the welding station, which greatly improves the welding efficiency, reduces the time spent on transporting the steel pipe, and meets the requirements for welding efficiency in the production of ultra-high voltage steel pipe towers. The clamping member and the fixing member can stably fix the steel pipe and the flange, ensuring the uniformity and stability of the welding gap. At the same time, the adjustment of the angle and position of the welding torch enables the welding process to better meet the welding process requirements, improves the welding quality, and reduces the generation of welding defects. The adjustable design of each component of the device enables it to adapt to steel pipes of different diameters and flanges of different specifications, increases the versatility of the device, and reduces the cost for enterprises to replace equipment due to changes in product specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description in the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0017] Figure 1 It is a schematic structural diagram of an automatic welding device for an ultra-high voltage steel pipe tower in an embodiment of the present disclosure; Figure 2 It is Figure 1 a schematic structural diagram of a bearing frame, a clamping member, a fixing member, a welding bracket, etc. in the embodiment of Figure 3 It is Figure 1 a schematic structural diagram of a bearing frame, a clamping member, a fixing member, a welding bracket, etc. from another perspective in the embodiment of Figure 4 It is Figure 1 a schematic structural diagram of the clamping member in the embodiment of Figure 5 It is Figure 1Schematic structural diagram of the fixing member in the embodiment; Figure 6 is Figure 1 Schematic structural diagram of the welding bracket in the embodiment; Figure 7 is Figure 1 Partial enlarged schematic diagram at position A in.

[0018] In the figure: 100, carrier frame; 200, clamping member; 300, fixing member; 400, welding bracket; 410, welding torch; 210, fixing seat; 220, first fixing clip; 230, second fixing clip; 240, fixing space; 250, screw hole; 260, adjusting block; 270, adjusting screw; 280, carrying roller; 310, through hole; 320, through groove; 330, fastening bolt; 500, sliding seat; 290, mounting block; 291, clamping space; 600, supporting table; 610, supporting groove; 620, moving roller. Detailed implementation manners

[0019] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0020] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0021] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0022] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this disclosure.

[0024] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be construed as indicating or implying relative importance.

[0025] As Figures 1 to 7 shown, it shows an automatic welding device for ultra-high voltage steel pipe towers in an embodiment of this disclosure. In the production of ultra-high voltage steel pipe towers, the welding work of the upper flange of the steel pipe tower strut faces many challenges. Existing welding devices cannot satisfy the inner and outer welding simultaneously, resulting in frequent replacement of welding stations, and the heaviness of the steel pipes makes handling difficult, seriously reducing the welding efficiency. This automatic welding device aims to solve these problems through a unique structural design and achieve efficient inner and outer seam welding operations.

[0026] In some examples, the carrier frame 100 serves as the basic support structure of the whole device, providing an installation platform for the clamping member 200, the fixing member 300 and the welding bracket 400. It needs to have sufficient strength and stability to withstand various forces during the welding process of the steel pipe, flange, etc. The carrier frame 100 can provide stable support for the whole welding device, ensure the positions of all components during the working process, and thus ensure the stability of the welding quality.

[0027] A plurality of clamping members 200 are oppositely arranged on the carrier 100. By clamping and fixing the steel pipe, the position of the steel pipe is ensured to be stable during the welding process. The design of the clamping member 200 should be able to adapt to steel pipes of different diameters. By adjusting the clamping force and position, it is ensured that the steel pipe will not shake or displace during welding. The steel pipe is reliably fixed, providing a stable workpiece basis for the welding operation, avoiding welding defects caused by the movement of the steel pipe, and improving the welding quality. At the same time, the adjustable clamping design increases the adaptability of the device to steel pipes of different specifications.

[0028] The fixing member 300 is relatively slidably arranged on the carrier 100 and is used to fix the flange and enable it to approach or move away from the clamping member 200. By sliding to adjust the position, the flange is accurately docked with the steel pipe to prepare for welding. The design of the fixing member 300 should ensure that the flange will not shift after being fixed, ensuring the uniformity of the welding gap. The fixing member can realize the docking of the flange and the steel pipe, improve the accuracy of welding, and ensure the welding quality. At the same time, the slidable design enables the device to adapt to steel pipes of different lengths and flanges at different installation positions, increasing the versatility of the device.

[0029] The welding bracket 400 is relatively slidably arranged on the carrier 100 and can approach or move away from the clamping member 200, providing a moving platform for the welding torch 410. The welding torch 410 is rotatably arranged on the welding bracket 400, and its orientation is inclined to the sliding direction of the welding bracket 400. By rotating to change the orientation angle, the welding of the inner seam and the outer seam between the flange and the steel pipe is realized. This design enables the welding torch 410 to flexibly reach the welding position and adjust the angle according to the welding requirements, improving the flexibility and adaptability of welding.

[0030] In actual use, first, according to the diameter of the steel pipe to be welded, adjust the distance between the clamping members 200, and place the steel pipe between the clamping members 200. Then, according to the size and installation position of the flange, place the flange on the fixing seat 210 of the fixing member 300. At the same time, according to the welding process requirements, adjust the height and initial inclination angle of the welding torch 410 on the welding bracket 400. Subsequently, start the device, and the welding bracket 400 slides along the guide rail on the carrier 100 and approaches the clamping members 200, so that the welding torch 410 approaches the connection between the steel pipe and the flange. For external seam welding, drive the rotating shaft of the welding torch 410 through a motor or a hydraulic motor, and adjust the welding torch 410 to an angle suitable for external seam welding. During welding, the welding bracket 400 moves along the guide rail at a preset speed, and at the same time, the welding torch 410 sprays welding material to weld the external seam between the steel pipe and the flange. After completing the external seam welding, the welding bracket 400 retracts to the initial position, and adjust the angle of the welding torch 410 again to make it suitable for internal seam welding. Then, the welding bracket 400 approaches the clamping members 200 again to weld the internal seam between the steel pipe and the flange. During the welding process, the height, angle and welding speed of the welding torch 410 can be adjusted in a timely manner according to the actual situation of the weld seam to ensure the welding quality. After the internal and external seam welding is completed, the welding bracket 400 retracts to the initial position, and turn off the welding torch 410 and the welding power supply. Loosen the clamping mechanism of the fixing member 300, and remove the welded steel pipe and flange assembly. Clean the device, including cleaning the residual welding material on the welding torch 410, wiping the dust on the surface of the carrier 100 and each component, etc., to prepare for the next welding operation.

[0031] The advantages of such a design are as follows. Through the design of the slidable welding bracket 400 and the rotatable welding torch 410, there is no need to frequently change the welding station, which greatly improves the welding efficiency, reduces the time spent on transporting the steel pipe, and meets the requirements for welding efficiency in the production of UHV steel pipe towers. The clamping members 200 and the fixing member 300 can stably fix the steel pipe and the flange, ensuring the uniformity and stability of the welding seam. At the same time, the adjustment of the angle and position of the welding torch 410 enables the welding process to better meet the welding process requirements, improves the welding quality, and reduces the generation of welding defects. The adjustable design of each component of the device enables it to adapt to steel pipes of different diameters and flanges of different specifications, increases the versatility of the device, and reduces the cost for the enterprise to replace equipment due to changes in product specifications.

[0032] In some examples, the steel pipes used in UHV steel pipe towers come in a variety of specifications. The detachable clamping member 200 facilitates quickly replacing the suitable clamping member 200 according to steel pipes of different pipe diameters, materials or shapes. In this way, various steel pipes can be fixed, ensuring the stability of the steel pipes during the welding process and improving the welding quality. During long-term use, the clamping member 200 may be affected by wear and damage, which may affect its clamping effect on the steel pipe. The detachable design enables maintenance personnel to conveniently remove the damaged clamping member 200 for repair or replacement without the need for large-scale disassembly of the entire device, thus shortening the maintenance time, reducing the maintenance cost, and improving the usability of the device.

[0033] In actual use, the detachable clamping member 200 enables the automatic welding device to easily handle steel pipes of various specifications. Regardless of the differences in pipe diameter, material or shape, stable clamping can be achieved by replacing the clamping member 200, significantly expanding the applicable range of the device and meeting the diverse welding requirements in the production of UHV steel pipe towers. The convenient and fast disassembly method greatly shortens the maintenance and replacement time of the clamping member 200, reduces the equipment downtime, and improves the production efficiency. At the same time, the maintenance cost is reduced, enabling the device to operate stably for a long time and providing reliable support for the production of UHV steel pipe towers.

[0034] In some examples, the fixed seat 210 is detachably arranged on the carrier 100, facilitating replacing the entire clamping member 200 unit according to different steel pipe specifications. The fixing space 240 formed between the first fixing clamp 220 and the second fixing clamp 230 is used to accommodate the steel pipe. The second fixing clamp 230 is rotatably arranged at one end of the first fixing clamp 220, and the opening and closing of the fixing space 240 are realized by rotation. This design makes it more convenient to place and remove the steel pipe, improving the work efficiency. After the second fixing clamp 230 rotates to close the fixing space 240, the first fixing clamp 220 and the second fixing clamp 230 act together to apply clamping forces to the steel pipe from multiple directions, ensuring that the steel pipe will not displace or shake during the welding process. By reasonably designing the contact area and angle between the first fixing clamp 220 and the second fixing clamp 230 and the steel pipe, the clamping force can be evenly dispersed, avoiding damage to the steel pipe surface due to excessive local stress.

[0035] During actual use, the rotatable second fixing clamp 230 makes the clamping process of the steel pipe simpler and faster, reducing the clamping time and improving the efficiency of the entire welding process. Workers do not need to laboriously pass the steel pipe through a complex clamping structure. They only need to place the steel pipe in the open fixing space 240 and rotate the second fixing clamp 230 to complete the fixing. The stable clamping structure can effectively resist various forces generated during the welding process, thereby improving the welding quality and reducing the generation of welding defects.

[0036] In some examples, there are differences in the pipe diameters of UHV steel pipe towers of different specifications. By setting a slidable adjustment block 260 on the first fixed clamp 220 and the second fixed clamp 230, and using the threaded fit of the adjustment screw 270 and the threaded hole 250 to control the sliding of the adjustment block 260, the size of the clamping space can be precisely adjusted to closely match the pipe diameter of the steel pipe. This can ensure stable clamping regardless of how the pipe diameter of the steel pipe changes. The steel pipes in actual production may have a certain degree of ovality. The adjustment block 260 can independently adjust its position on the fixed clamp. Multiple adjustment blocks 260 cooperate with each other to adapt to the oval shape of the steel pipe, ensuring uniform force at each contact point and avoiding deformation of the steel pipe or displacement during welding caused by uneven local force.

[0037] The advantage of such a design is that during the welding process, the steel pipe can maintain a more stable position, reducing welding deviations caused by clamping, thereby improving the welding quality. The adjustable clamping structure can adapt to steel pipes of different diameters and with different ovalities, significantly expanding the applicable range of the automatic welding device, reducing the cost of replacing equipment or fixtures due to changes in the steel pipe specifications, and improving the versatility and utilization rate of the equipment.

[0038] In actual use, through the precise adjustment of the adjustment block 260 and the adjustment screw 270, the clamping member 200 can closely match steel pipes of various diameters and ovalities, effectively reducing the displacement and deformation of the steel pipe during the welding process and improving the welding quality. The automatic welding device can adapt to more specifications of steel pipes. Whether it is a standard pipe diameter or a steel pipe with an ovality deviation, it can be stably clamped, greatly improving the versatility and applicability of the device and meeting the diverse steel pipe welding requirements in the production of UHV steel pipe towers. From improving the clamping accuracy to expanding the applicable range, the design of the adjustment block 260 and the adjustment screw 270 comprehensively improves the comprehensive performance of the automatic welding device, reduces the production cost, improves the production efficiency, and makes the device more in line with the requirements of the modern power industry for advanced and efficient welding equipment.

[0039] In some examples, when the steel pipe is placed on the adjusting block 260, the rolling of the load-carrying roller 280 replaces the sliding friction between the steel pipe and the surface of the adjusting block 260. Since the rolling friction coefficient is much smaller than the sliding friction coefficient, this greatly reduces the frictional force between the steel pipe and the adjusting block 260, reduces the wear of the steel pipe surface, and at the same time reduces the pressure borne by the adjusting block 260, extending the service life of the adjusting block 260 and the steel pipe. The load-carrying roller 280 can rotate freely on the adjusting block 260. When the steel pipe has a tendency of small displacement due to factors such as welding thermal stress, the load-carrying roller 280 can rotate to adapt to this change and always maintain good contact with the steel pipe, thus enhancing the stability of the steel pipe during the clamping process. In addition, the setting of the load-carrying roller 280 makes the placement of the steel pipe on the adjusting block 260 more flexible. Even if the steel pipe has a certain degree of out-of-roundness or surface unevenness, the load-carrying roller 280 can make self-adaptive adjustments through its own rotation to ensure that each load-carrying roller 280 is evenly stressed, improving the adaptability to different steel pipes.

[0040] In actual use, the load-carrying roller 280 effectively reduces the wear of the steel pipe surface, guarantees the surface quality of the steel pipe, and helps to extend the service life of the steel pipe in actual use. For equipment such as UHV steel pipe towers that operate in harsh environments for a long time, this can improve its overall reliability and safety. The load-carrying roller 280 enhances the stability of the steel pipe during the welding process, reduces welding defects, and improves the welding quality. At the same time, it is beneficial to the rotation of the steel pipe. In the case where the steel pipe needs to be rotated for welding, it improves the welding efficiency, shortens the welding time, and enhances the production efficiency of the entire welding operation. The design of the load-carrying roller 280 enables the clamping member 200 to better adapt to steel pipes of different specifications and surface conditions, enhancing the adaptability of the automatic welding device. In addition, the reasonable cooperation of the load-carrying roller 280 and components such as the adjusting block 260 improves the reliability of the entire clamping system, reduces production interruptions caused by component failures, and enhances the overall performance of the equipment.

[0041] In some examples, through holes 310 are provided on the fixing member 300, providing a channel for the welding torch 410 to pass through the fixing member 300 and directly weld the inner wall of the gap between the flange and the steel pipe. In this way, when performing internal seam welding, the welding torch 410 does not need to perform welding operations from other complex angles or positions, and can weld the weld more directly and accurately, which helps to improve the quality and efficiency of internal seam welding. The through grooves 320 arranged in a circumferential array along the through holes 310 cooperate with the fastening bolts 330, and the position of the fastening bolts 330 can be adjusted according to the size of the flange. When flanges of different sizes are installed, by placing the fastening bolts 330 in the through grooves 320 at appropriate positions and tightening them, the flange can be firmly fixed to ensure that the flange does not displace during the welding process, thereby ensuring the stability of the welding quality.

[0042] Its advantages are as follows. The provision of the through-hole 310 enables the welding torch 410 to perform internal seam welding at a more reasonable angle and position, reducing the welding blind spots, improving the penetration and uniformity of the weld seam, and thus enhancing the quality of internal seam welding. At the same time, the simplified welding path also saves the welding operation time and improves the welding efficiency. The cooperative design of the through slot 320 and the fastening bolt 330 enables the fixing part 300 to adapt to flanges of various sizes, eliminating the need to replace different fixing parts 300 for flanges of different sizes, greatly enhancing the versatility of the automatic welding device for flanges of different specifications, reducing the production cost, and improving the utilization rate of the equipment.

[0043] In actual use, the design of the through-hole 310 provides a direct and convenient internal seam welding path for the welding torch 410, significantly improving the quality and efficiency of internal seam welding, reducing weld defects caused by inconvenient welding operations, and better ensuring the welding quality of the UHV steel pipe tower. The cooperative design of the through slot 320 and the fastening bolt 330 enables the fixing part 300 to flexibly adapt to flanges of different sizes, enhancing the versatility and adaptability of the automatic welding device, meeting the diverse flange welding requirements in the production of UHV steel pipe towers, and reducing the production cost and equipment management difficulty of the enterprise. By optimizing the structure of the fixing part 300, the overall performance of the automatic welding device is improved in terms of both the internal seam welding quality and the versatility for flanges, making it more in line with the requirements of the modern power industry for high-efficiency, stable, and versatile welding equipment, and contributing to improving the production efficiency and quality of UHV steel pipe towers.

[0044] In some examples, different operators have different heights. A suitable operating height can effectively reduce the fatigue of the operators, improve the work efficiency and welding quality. By providing a slidable seat 500 that can slide up and down, the operator can adjust the overall height of the device according to his own height, so that the welding operation is within a comfortable height range, reducing the physical burden caused by long-term work. In actual production, different working scenarios may be encountered. For example, in some sites with limited space, it is necessary to lower the height of the device to meet the space requirements; while in some special welding processes, it may be necessary to raise the device to better observe the welding part or use specific auxiliary equipment. The design of the slidable seat 500 endows the device with the ability to flexibly adjust the height, enhancing its adaptability to different working scenarios.

[0045] Its advantages are as follows. The height adjustment function of the slidable seat 500 fully considers the actual needs of the operators. By adapting to operators of different heights, it improves their work comfort, reduces fatigue, and thus improves the work efficiency and welding quality.

[0046] In some examples, during the welding process, the device is subjected to various forces, such as the vibration of the welding torch 410, the gravity of the steel pipe and flange, and thermal stress. The clamping space 291 formed by the mounting block 290 and the fixed seat 210 can tightly hold the sliding seat 500, preventing the clamping member 200 from displacing or shaking on the sliding seat 500, thus ensuring the relative position accuracy of the steel pipe and flange during the welding process and guaranteeing the welding quality. The detachable design of the mounting block 290 enables it to be conveniently removed from the fixed seat 210 during equipment maintenance, component replacement, or device layout adjustment, and then the sliding seat 500 or other relevant components can be inspected, repaired, or replaced, improving the convenience of equipment maintenance.

[0047] Its advantages are that by firmly clamping the sliding seat 500, the mounting block 290 effectively reduces the errors caused by component loosening during the welding process, improves the stability and accuracy of welding, helps to enhance the welding quality of UHV steel pipe towers, and reduces the defective rate. The detachable design facilitates the maintenance and component replacement of the device, shortens the equipment downtime, reduces the maintenance cost, and improves the availability and service life of the equipment.

[0048] In actual use, the clamping space 291 formed by the mounting block 290 and the fixed seat 210 effectively enhances the stability of the connection between the clamping member 200 and the sliding seat 500, ensures the stability of the device during the welding process, and thus improves the welding quality, providing a strong guarantee for the high-quality production of UHV steel pipe towers. The detachable design of the mounting block 290 greatly improves the convenience of equipment maintenance, reduces the maintenance time and cost, improves the operation efficiency and service life of the equipment, and enables the equipment to maintain good performance during long-term use. The design of the mounting block 290 further optimizes the overall structure of the automatic welding device, improving the performance of the device from both the aspects of connection stability and maintenance convenience, making it more in line with the requirements of the modern power industry for high-efficiency, stable, and easy-to-maintain welding equipment.

[0049] In some examples, the steel pipes used in UHV steel pipe towers are usually long and heavy, and relying solely on the support of the clamping member 200 may not ensure its absolute stability during the welding process. The supporting groove 610 of the supporting table 600 works together with the clamping member 200 to provide additional supporting force for the steel pipe from below, dispersing the weight of the steel pipe, reducing the risk of deformation of the steel pipe caused by its own gravity or welding stress, and keeping the steel pipe in a more stable position during the welding process. The shape of the supporting groove 610 is V-shaped, which can play a certain positioning role for the steel pipe. When the steel pipe is placed between the supporting groove 610 and the clamping member 200, the supporting groove 610 can limit the horizontal movement of the steel pipe, and together with the clamping member 200, ensure the accurate positioning of the steel pipe before welding, reducing the positioning and adjustment time and improving the work efficiency.

[0050] In some examples, when the steel pipe is placed, moved or rotated due to the need of the welding process in the supporting groove 610, the rolling of the moving rollers 620 replaces the sliding friction between the steel pipe and the surface of the supporting groove 610. The rolling friction coefficient is much smaller than the sliding friction coefficient, greatly reducing the frictional force between the steel pipe and the supporting groove 610. This makes it easier for the operator to place and adjust the position of the steel pipe, reducing the labor consumption and improving the work efficiency. At the same time, during the welding process, if it is necessary to rotate the steel pipe for welding the circumferential weld, the moving rollers 620 can make the steel pipe rotate more smoothly and reduce the driving difficulty. The multiple moving rollers 620 are in contact with the outer wall of the steel pipe and can be adaptively adjusted according to the shape and position of the steel pipe. Even if the steel pipe has a certain degree of ovality or the placement position is slightly deviated, the moving rollers 620 can always maintain good contact with the steel pipe through their own rotation, ensuring that each moving roller 620 is evenly stressed, providing stable support for the steel pipe, and avoiding damage to the steel pipe caused by uneven local stress.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. An automatic welding device for ultra-high voltage steel pipe tower, characterized in that: include: Carrying frame (100); A plurality of clamping members (200) are provided on the support frame (100), and the plurality of clamping members (200) are used to clamp the steel pipe; a fixing member (300) arranged on the carrier (100) in a relatively slidable manner, the fixing member (300) being used to fix the flange, the fixing member (300) being configured to move closer to or farther from the clamping member (200) after sliding, so as to make the flange move closer to or farther from the clamping member (200); A welding bracket (400) is relatively slidably arranged on the carrier frame (100), the welding bracket (400) being configured to slide closer to or farther away from the clamping member (200), a welding gun (410) being rotatably arranged on the welding bracket (400), the welding gun (410) being used to weld the gap between the flange and the steel pipe, the welding gun (410) being inclined in a direction corresponding to the sliding direction of the welding bracket (400), the welding gun (410) being configured to change the direction angle of the welding gun (410) after rotation, so that the welding gun (410) can weld the inner seam or the outer seam.

2. The automatic welding device for ultra-high voltage steel pipe tower according to claim 1, characterized in that: The clamping member (200) is detachably arranged on the supporting frame (100).

3. The automatic welding device for ultra-high voltage steel pipe tower according to claim 1, characterized in that: The clamping member (200) comprises: A fixing seat (210) detachably arranged on the supporting frame (100); A first fixing clip (220) is arranged on the fixing seat (210); The second fixing clip (230) is rotatably arranged at one end of the first fixing clip (220), a fixing space (240) is formed between the first fixing clip (220) and the second fixing clip (230), and the second fixing clip (230) is configured to open or close the fixing space (240) after rotation.

4. The automatic welding device for ultra-high voltage steel pipe tower according to claim 3, characterized in that: The first fixing clamp (220) and the second fixing clamp (230) are provided with a plurality of screw holes (250), and further comprising: The adjusting blocks (260) are provided in plurality and are slidably mounted on the first fixing clamp (220) or the second fixing clamp (230). An adjusting screw (270) is rotatably mounted on the adjusting block (260). The adjusting screw (270) is threadably engaged with the screw hole (250). The adjusting screw (270) is used to drive the adjusting block (260) to slide. The plurality of adjusting blocks (260) are configured to move closer to or farther from each other after sliding. The plurality of adjusting blocks (260) are used to support the steel pipe.

5. The automatic welding device for ultra-high voltage steel pipe tower according to claim 4, characterized in that: The clamping member (200) further comprises a bearing roller (280), wherein the bearing roller (280) is rotatably arranged on the adjusting block (260); after the steel pipe is installed, the bearing roller (280) abuts against the steel pipe, and the adjusting block (260) bears the steel pipe via the bearing roller (280).

6. The automatic welding device for ultra-high voltage steel pipe tower according to claim 1, characterized in that: The fixing member (300) has a through hole (310) and a plurality of through slots (320) arranged in a circumferential array along the through hole (310); the through hole (310) is used to reserve a position for a welding gun (410) to pass through so that the welding gun (410) can weld the flange and the inner wall of the gap between the steel pipe; and the plurality of through slots (320) are used to cooperate with fastening bolts (330) to fix flanges of different sizes.

7. The automatic welding device for ultra-high voltage steel pipe tower according to claim 3, characterized in that: Also includes: A sliding seat (500) is slidably arranged on the carrier frame (100); the clamping member (200), the fixing member (300) and the welding bracket (400) are all located on the sliding seat (500); and the sliding seat (500) is configured to slide closer to or farther from the ground.

8. The automatic welding device for ultra-high voltage steel pipe tower according to claim 7, characterized in that: Also includes: The mounting block (290) is detachably arranged on the fixing seat (210), and a clamping space (291) is formed between the mounting block (290) and the fixing seat (210), and the clamping space (291) is used to clamp the sliding seat (500).

9. The automatic welding device for ultra-high voltage steel pipe tower according to claim 1, characterized in that: The support frame (100) is arranged on a ground foundation and further comprises: The supporting platform (600) is arranged on a ground foundation and is located on one side of the supporting platform (600). The supporting platform (600) has a supporting groove (610), and the supporting groove (610) and the clamping member (200) jointly support the steel pipe.

10. The automatic welding device for ultra-high voltage steel pipe tower according to claim 9, characterized in that: Also includes: There are a plurality of movable rollers (620) which are rotatably disposed in the supporting groove (610), and a plurality of the movable rollers (620) are in contact with the outer wall of the steel pipe.

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