A high-strength large-specification electric power tower processing welding device

Abstract

This invention discloses a welding device for processing high-strength, large-size power transmission towers, relating to the field of tower manufacturing and processing technology. The device includes a welding torch control mechanism, slidably mounted in a control slot above a base, used to adjust the position of the welding torch, allowing it to move precisely along the overlap of two steel plates. A tilting plate is coaxially mounted in a central mounting hole, with symmetrical rotating shafts on both sides, each located in a mounting slot on either side of the central mounting hole. A limiting frame is symmetrically positioned on both sides of the tilting plate, with clamping components on the limiting plate for fixing the welding torch and moving it along a predetermined path on the limiting frame. A workpiece clamping assembly is located on one side of the tilting plate, used to cross-lap the two steel plates, and can also clamp steel plates of different specifications.

Description

Technical Field

[0001] This invention relates to the field of tower manufacturing and processing technology, and more specifically to a welding device for processing high-strength, large-size power towers. Background Technology

[0002] In recent years, with the rapid growth of the national economy, the power industry has developed rapidly, which has promoted the rapid development of the transmission line tower industry. As the core support structure of transmission lines, the safety and stability of power towers directly determine the reliability of power grid operation. Tower accessories (such as flanges, connecting plates, reinforcing ribs, anchor bolt assemblies, etc.) are key connecting components between the tower body and the foundation and tower sections. They need to withstand strong winds, icing, earthquakes and long-term loads. Welding equipment is required when processing power tower accessories.

[0003] In complex stress-bearing areas, bolts alone may not meet strength requirements, or certain specially shaped components can only be fabricated by welding. Sometimes, to connect multiple diagonal members in different directions, it is necessary to weld two pieces or plates into a complex three-dimensional node plate, and then connect it to the members with bolts. When the load-bearing capacity of a single angle steel is insufficient, two angle steels are used back-to-back or to form a cross-shaped section. These two angle steels need to be connected into a whole by intermittent welds to make them work together. The cross-shaped composite angle steel is composed of two angle steels back-to-back, and the weld is located on the angle steel. At the intersection of contact lines, the core purpose of flipping is to achieve symmetrical welding on both sides. That is, the weld on one side is completed first, and after cooling to a suitable temperature, the workpiece is flipped over and the other side is welded. During the flipping process, a special fixture is generally used to hold the workpiece. When the special fixture holds cross connecting plates of different sizes, the positioning speed is slow and the positioning accuracy is low. Moreover, after long-term high-frequency use, the positioning elements such as positioning blocks and clamping surfaces of the special fixture will inevitably wear. Burrs and residual welding slag on the surface of the workpiece will also interfere with the normal fit of the positioning elements, resulting in inaccurate positioning reference.

[0004] In view of the above, the present invention designs a welding device for processing high-strength, large-size power transmission towers, which solves the above-mentioned technical problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a welding device for processing high-strength, large-size power transmission towers, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding device for processing high-strength, large-size power transmission towers, comprising a base, a connecting support plate disposed below the base for fixing the base, control slots symmetrically disposed above the base, and a central mounting hole penetrating the center of the base; the device further comprising: a welding torch control mechanism slidably disposed within the control slots above the base, the welding torch control mechanism being used to adjust the position of the welding torch so that the welding torch moves precisely along the overlap of two steel plates; and a flipping plate coaxially disposed within the central mounting hole, with rotating shafts symmetrically disposed on both sides of the flipping plate. The moving shaft is set in the mounting slots opened on both sides of the central mounting hole; the limiting frame is symmetrically set on both sides of the flip plate, and the limiting plate is provided with clamping parts, which are used to fix the welding torch. The clamping parts drive the welding torch to move along a predetermined path on the limiting frame; the workpiece clamping assembly is set on one side of the flip plate. The workpiece clamping assembly is used to cross-lap two steel plates, and can fix and clamp steel plates of different specifications; wherein, the welding torch control mechanism drives the welding torch to weld the steel plate above the flip plate, and the clamping parts fix the welding torch, so that the welding torch control mechanism drives the welding torch to move along the predetermined route of the limiting frame.

[0007] Preferably, a drive motor is provided in one of the mounting slots on both sides, the output end of the drive motor is connected to the rotating shaft, and the drive motor drives the rotating shaft to make the flip plate rotate around the rotating shaft.

[0008] Preferably, the welding torch control mechanism includes a movable frame, a sliding block, a telescopic component, and a welding torch; the movable frame is slidably disposed in the control slots on both sides, and a sliding groove is formed in the middle of the movable frame; the sliding block is slidably disposed in the sliding groove, and a telescopic component is fixedly connected to the lower part of the sliding block, and the welding torch is connected to the other end of the telescopic component; wherein, the movable frame drives the welding torch to change its lateral position, the sliding block moves within the sliding groove to change its longitudinal position, and the telescopic component drives the welding torch to move up and down to change the welding height.

[0009] Preferably, the limiting frame includes support columns and rectangular guide blocks. Multiple sets of support columns are provided, and rectangular guide blocks are provided above the multiple sets of support columns. A guide groove is provided on the rectangular guide block, and a clamping component is provided in the guide groove.

[0010] Preferably, the clamping member includes a guide block, a connecting spring, and a clamping block. The guide groove has a U-shaped structure, and the guide block is slidably disposed in the guide groove. A connecting spring is disposed on one side of the guide block, and the clamping block is connected to the other end of the connecting spring. The clamping block has a circular ring structure, and an opening is provided on one side of the circular ring structure clamping block.

[0011] Preferably, a welding hole is provided through the central axis of the flipping plate. The welding hole is used to weld the steel plates that are cross-lapped after flipping. The diameter of the welding hole is greater than the width of the overlap of the two largest steel plates.

[0012] Preferably, the workpiece clamping assembly includes a clamping plate, a rectangular groove, a clamping spring, and a compression plate. The rectangular groove is formed around the welding hole. The clamping plate is slidably disposed in the rectangular groove, and the width of the clamping plate is greater than the width of the rectangular groove. A clamping spring is connected to one side of the clamping plate, and a compression plate is connected to one end of the clamping spring. The compression plate can adapt to clamping steel plates of different sizes through the clamping spring.

[0013] Preferably, the clamping plate has a rotating groove, which is composed of a cylindrical groove and a strip groove. The cylindrical groove extends through the clamping plate, and the strip groove is located above the cylindrical groove. A control rod is provided in the rotating groove. The shape of the control rod is consistent with that of the rotating groove, and the height of the control rod is greater than that of the rotating groove.

[0014] Preferably, a locking claw is provided below the control lever, and multiple sets of locking teeth are arranged in an array in the rectangular groove. The locking teeth have a trapezoidal structure, and the locking claw cooperates with the locking teeth to stabilize the clamping plate during the welding process.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a welding device for processing high-strength, large-size power transmission towers. The device, through a welding torch control mechanism and a limiting frame, allows the welding torch to move along a preset path along the limiting frame during the welding of two angle steels. Automated welding eliminates the physiological tremors and distractions that cause the welding torch to deviate from its predetermined trajectory during manual welding. Furthermore, when producing the same batch of cross-shaped angle steels, the preset path can be repeatedly adjusted, maintaining a high degree of consistency in the weld position, width, and penetration depth, thus ensuring uniform stress on the welded joints of the tower. The workpiece clamping assembly, with its clamping plate moving on a rectangular groove, allows the compression plate to evenly clamp longer angle steels, preventing uneven clamping forces and significantly improving efficiency. The stability during the welding process is ensured by the clamping springs on one side of the compression plate, which can accommodate angle steel of various sizes. The compression plate, along with the clamping springs, holds the angle steel, while the clamping components on the limit frame fix the welding torch. When the welding torch control mechanism moves the torch on the limit frame to weld the cross-shaped angle steel, the clamping components can fix the welding torch when welding cross-shaped angle steel of different sizes, preventing wobbling during welding. After welding one side of the cross-shaped angle steel, the drive motor in the mounting slot rotates the flipping plate, and the welding torch control mechanism welds the other side of the cross-shaped angle steel. This process avoids the problem of inaccurate positioning references caused by specialized fixtures, thereby improving the overall positioning accuracy of the workpiece clamping assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the limiting frame and the workpiece clamping assembly of the present invention. Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a cross-sectional view of the overall structure of the workpiece clamping assembly of the present invention; Figure 6 This is a half-sectional view of the overall structure of the workpiece clamping assembly and the base of the present invention. Figure 7 For the present invention Figure 6 A magnified view of a section at point B in the middle; Figure 8 For the present invention Figure 6 A magnified view of a section at point C.

[0017] Figure label: 1. Base; 11. Connecting support plate; 12. Control groove; 13. Center mounting hole; 14. Mounting groove; 141. Drive motor; 142. Rotating shaft; 2. Welding torch control mechanism; 21. Moving frame; 211. Sliding groove; 22. Sliding block; 23. Telescopic component; 24. Welding torch; 3. Limiting frame; 31. Support column; 32. Rectangular guide block; 321. Guide groove; 4. Clamping component; 41. Guide block; 42. Connecting spring; 43. Clamping block; 5. Flipping plate; 51. Welding hole; 6. Workpiece clamping assembly; 61. Clamping plate; 611. Rotating groove; 612. Control rod; 62. Rectangular groove; 621. Locking tooth; 63. Locking claw; 64. Clamping spring; 65. Compression plate; Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] refer to Figures 1 to 7 As shown, a welding device for processing high-strength, large-size power transmission towers includes a base 1, with a connecting support plate 11 below the base 1 for fixing the base 1. A control groove 12 is symmetrically arranged above the base 1, and a central mounting hole 13 is formed through the center of the base 1. The device also includes a welding torch control mechanism 2, slidably disposed within the control groove 12 above the base 1, used to adjust the position of a welding torch 24 so that the welding torch 24 moves precisely along the overlap of two steel plates; and a flipping plate 5, coaxially disposed within the central mounting hole 13, with rotating shafts 142 symmetrically arranged on both sides of the flipping plate 5, and the two rotating shafts 142 positioned at the central mounting hole. The mounting slots 14 are opened on both sides of the mounting hole 13; the limiting frame 3 is symmetrically arranged on both sides of the flip plate 5, and the limiting plate is provided with a clamping member 4. The clamping member 4 is used to fix the welding gun 24. The clamping member 4 drives the welding gun 24 to move along a predetermined path on the limiting frame 3; the workpiece clamping assembly 6 is arranged on one side of the flip plate 5. The workpiece clamping assembly 6 is used to cross-lap two steel plates. At the same time, the workpiece clamping assembly 6 can fix and clamp steel plates of different specifications; wherein, the welding gun control mechanism 2 drives the welding gun 24 to weld the steel plate above the flip plate 5, and the clamping member 4 fixes the welding gun 24, so that the welding gun control mechanism 2 drives the welding gun 24 to move along the predetermined route of the limiting frame 3.

[0020] Specifically, a drive motor 141 is provided in any one of the mounting slots 14 on both sides. The output end of the drive motor 141 is connected to the rotating shaft 142, and the drive motor 141 drives the rotating shaft 142 to make the flip plate 5 rotate around the rotating shaft 142.

[0021] Specifically, the welding torch control mechanism 2 includes a movable frame 21, a sliding block 22, a telescopic component 23, and a welding torch 24; the movable frame 21 is slidably disposed in the control slots 12 on both sides, and a sliding groove 211 is provided in the middle of the movable frame 21; the sliding block 22 is slidably disposed in the sliding groove 211, and a telescopic component 23 is fixedly connected to the lower part of the sliding block 22, and the welding torch 24 is connected to the other end of the telescopic component 23; wherein, the movable frame 21 drives the welding torch 24 to change its lateral position, the sliding block 22 moves within the sliding groove 211 to change its longitudinal position, and the telescopic component 23 drives the welding torch 24 to move up and down to change the welding height.

[0022] Specifically, the limiting frame 3 includes a support column 31 and a rectangular guide block 32. Multiple sets of support columns 31 are provided, and rectangular guide blocks 32 are provided above the multiple sets of support columns 31. A guide groove 321 is provided on the rectangular guide block 32, and a clamping member 4 is provided in the guide groove 321.

[0023] Specifically, the clamping member 4 includes a guide block 41, a connecting spring 42, and a clamping block 43. The guide groove 321 has a U-shaped structure. The guide block 41 is slidably arranged in the guide groove 321. The connecting spring 42 is provided on one side of the guide block 41, and the clamping block 43 is connected to the other end of the connecting spring 42. The clamping block 43 has a ring structure, and an opening is provided on one side of the ring structure clamping block 43.

[0024] Specifically, a welding hole 51 is provided through the central axis of the flip plate 5. The welding hole 51 is used to weld the steel plates that are cross-lapped after flipping. The diameter of the welding hole 51 is greater than the width of the overlap of the two largest steel plates.

[0025] Specifically, the workpiece clamping assembly 6 includes a clamping plate 61, a rectangular groove 62, a clamping spring 64, and a compression plate 65. The rectangular groove 62 is formed around the welding hole 51. The clamping plate 61 is slidably disposed in the rectangular groove 62, and the width of the clamping plate 61 is greater than the width of the rectangular groove 62. The clamping spring 64 is connected to one side of the clamping plate 61, and the compression plate 65 is connected to one end of the clamping spring 64. The compression plate 65 can adapt to clamping steel plates of different sizes through the clamping spring 64.

[0026] Specifically, the clamping plate 61 has a rotating groove 611, which is composed of a cylindrical groove and a strip groove. The cylindrical groove extends through the clamping plate 61. The rectangular groove 62 is located above the cylindrical groove. A control rod 612 is provided in the rotating groove 611. The shape of the control rod 612 is the same as that of the rotating groove 611, and the height of the control rod 612 is greater than the height of the rotating groove 611.

[0027] Specifically, a locking claw 63 is provided below the control lever 612, and multiple sets of locking teeth 621 are arranged in an array in the rectangular groove 62. The locking teeth 621 have a trapezoidal structure. The locking claw 63 cooperates with the locking teeth 621 to stabilize the clamping plate 61 during the welding process.

[0028] During the operation, the worker first places two angle steels on the flipping plate 5, arranging them in a cross shape between the symmetrically arranged clamping plates 61 on the flipping plate 5. After placement, the angle steels are limited by a compression plate 65 on one side of the clamping plate 61. Simultaneously, a clamping spring 64 on one side of the compression plate 65 keeps the compression plate 65 tightly against both sides of the angle steel. To prevent the angle steel from falling due to its own weight after the flipping plate 5 flips the cross-shaped angle steel, a magnetic element is installed on one side of the compression plate 65. This magnetic element tightly adheres the angle steel to the compression plate 65. A protruding limiting block is also provided on one side of the compression plate 65. When the flipping plate 5 flips, the combination of the limiting block and the magnetic element ensures that the cross-shaped angle steel will not fall due to its own weight. To ensure the stability of the angle steel during welding, the rectangular groove is moved... The clamping plate 61 above the rectangular groove 62 moves the clamping plate 61 to a suitable position above the rectangular groove 62 to prevent the middle of the angle steel from collapsing downwards due to its own weight, which would prevent the cross-shaped angle steel from being welded. In order to ensure that the clamping plate 61 is fixed in position on the rectangular groove 62, a rotating groove 611 is opened in the clamping plate 61, and a control rod 612 is set in the rotating groove 611. The locking claw 63 installed below the control rod 612 cooperates with the locking teeth 621 in the rectangular groove 62 to lock the locking claw 63, thereby completing the fixation of the clamping plate 61. In order to prevent the control rod 612 in the clamping plate 61 from falling off after flipping, the control rod 612 is detachably connected to the rotating groove 611 to prevent the control rod 612 from falling out of the rotating groove 611. After the angle steel cross-lap joint is completed, the moving frame 21 moves within the control groove 12. The moving frame 21 moves the welding torch 24 to the open clamping block 43, and then moves it along a preset path. At this time, the sliding block 22 moves within the sliding groove 211. The welding height of the welding torch 24 is controlled by the telescopic component 23. The welding torch control mechanism 2 moves the welding torch 24, so that the welding torch 24 moves within the clamping block 43. During the movement of the welding torch 24 by the welding torch control mechanism 2, the welding torch 24 moves along the guide groove 321 opened in the rectangular guide block 32. Since the guide groove 321 is provided with a guide block 41, and the guide block 41 is connected to the clamping block 43 by a connecting spring 42, the welding torch 24 moves along the guide groove 321 opened within the rectangular guide block 32. The blocks 43 are connected. When welding angle steel of different sizes, the welding of the cross angle steel can be completed by simply adjusting the preset path of the welding gun control mechanism 2. After one side of the angle steel is welded, the drive motor 141 drives the rotating shaft 142 to rotate. The rotation of the rotating shaft 142 drives the flipping plate 5 to move synchronously, so that the side of the angle steel that has been welded faces down and the side that has not been welded faces up. The angle steel is then welded by the welding gun control mechanism 2. After the welding is completed, the cross combined angle steel can be removed to complete the overall welding of the angle steel. During the welding process, the problem of inaccurate positioning reference caused by special fixtures is avoided, thereby improving the positioning accuracy of the overall workpiece clamping assembly 6.

[0029] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within the scope of its essence and protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A welding device for processing high-strength, large-size power transmission towers, comprising a base (1), wherein a connecting support plate (11) is provided below the base (1), and the connecting support plate (11) is used to fix the base (1), characterized in that, The base (1) is symmetrically provided with control slots (12) on its upper part, and a central mounting hole (13) is provided through the center of the base (1). The device also includes: The welding torch control mechanism (2) is slidably set in the control groove (12) opened above the base (1). The welding torch control mechanism (2) is used to adjust the position of the welding torch (24) so ​​that the welding torch (24) can move precisely along the joint of the two steel plates. The flip plate (5) is coaxially arranged in the central mounting hole (13). The flip plate (5) is symmetrically provided with rotating shafts (142) on both sides, and the rotating shafts (142) on both sides are arranged in the mounting grooves (14) opened on both sides of the central mounting hole (13). The limiting frame (3) is symmetrically arranged on both sides of the flip plate (5), and the limiting plate is provided with a clamping member (4). The clamping member (4) is used to fix the welding gun (24). The clamping member (4) drives the welding gun (24) to move along a predetermined path on the limiting frame (3). The workpiece clamping assembly (6) is set on one side of the flip plate (5). The workpiece clamping assembly (6) is used to cross-lap two steel plates. At the same time, the workpiece clamping assembly (6) can fix and clamp steel plates of different specifications. The welding torch control mechanism (2) drives the welding torch (24) to weld the steel plate above the flip plate (5), and the clamping member (4) fixes the welding torch (24), so that the welding torch control mechanism (2) drives the welding torch (24) to move along the predetermined route of the limiting frame (3).

2. The welding device for processing high-strength, large-size power transmission towers according to claim 1, characterized in that: A drive motor (141) is provided in any one of the mounting slots (14) on both sides. The output end of the drive motor (141) is connected to the rotating shaft (142), and the drive motor (141) drives the rotating shaft (142) to make the flip plate (5) rotate around the rotating shaft (142).

3. The welding device for processing high-strength, large-size power transmission towers according to claim 1, characterized in that: The welding torch control mechanism (2) includes a moving frame (21), a sliding block (22), a telescopic component (23), and a welding torch (24). The movable frame (21) is slidably disposed in the control slots (12) on both sides, and a sliding slot (211) is provided in the middle of the movable frame (21). A sliding block (22) is slidably disposed in a sliding groove (211). A telescopic component (23) is fixedly connected below the sliding block (22), and a welding torch (24) is connected to the other end of the telescopic component (23). The movable frame (21) drives the welding torch (24) to change its lateral position, and the sliding block (22) moves within the sliding groove (211) to change its longitudinal position. The telescopic component (23) drives the welding torch (24) to move up and down to change the welding height.

4. The welding device for processing high-strength, large-size power transmission towers according to claim 1, characterized in that: The limiting frame (3) includes a support column (31) and a rectangular guide block (32). The support column (31) is provided in multiple sets, and a rectangular guide block (32) is provided above the multiple sets of support columns (31). A guide groove (321) is provided on the rectangular guide block (32), and a clamping member (4) is provided in the guide groove (321).

5. The welding device for processing high-strength, large-size power transmission towers according to claim 4, characterized in that: The clamping member (4) includes a guide block (41), a connecting spring (42) and a clamping block (43). The guide groove (321) has a U-shaped structure. The guide block (41) is slidably arranged in the guide groove (321). The connecting spring (42) is provided on one side of the guide block (41), and the clamping block (43) is connected to the other end of the connecting spring (42). The clamping block (43) has a ring structure, and an opening is provided on one side of the ring structure clamping block (43).

6. The welding device for processing high-strength, large-size power transmission towers according to claim 1, characterized in that: The flip plate (5) has a through welding hole (51) at its central axis. The welding hole (51) is used to weld the steel plates that are cross-lapped after flipping. The diameter of the welding hole (51) is greater than the width of the overlap of the two largest steel plates.

7. The welding device for processing high-strength, large-size power transmission towers according to claim 1, characterized in that: The workpiece clamping assembly (6) includes a clamping plate (61), a rectangular groove (62), a clamping spring (64), and a compression plate (65). The rectangular groove (62) is formed around the welding hole (51). The clamping plate (61) is slidably disposed in the rectangular groove (62), and the width of the clamping plate (61) is greater than the width of the rectangular groove (62). The clamping spring (64) is connected to one side of the clamping plate (61), and the compression plate (65) is connected to one end of the clamping spring (64). The compression plate (65) can adapt to clamping steel plates of different sizes through the clamping spring (64).

8. The welding device for processing high-strength, large-size power transmission towers according to claim 7, characterized in that: The clamping plate (61) has a rotating groove (611) inside, and the rotating groove (611) is composed of a cylindrical groove and a strip groove. The cylindrical groove is set through the clamping plate (61), and the rectangular groove (62) is set above the cylindrical groove. A control rod (612) is set inside the rotating groove (611). The shape of the control rod (612) is the same as that of the rotating groove (611), and the height of the control rod (612) is greater than the height of the rotating groove (611).

9. The welding device for processing high-strength, large-size power transmission towers according to claim 8, characterized in that: A locking claw (63) is provided below the control lever (612), and multiple sets of locking teeth (621) are arranged in an array in the rectangular groove (62). The locking teeth (621) have a trapezoidal structure. The locking claw (63) cooperates with the locking teeth (621) to stabilize the clamping plate (61) during the welding process.

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