A laser welding device for the assembly and construction of a wind power tower barrel

Abstract

The present invention relates to the technical field of welding, and provides a laser welding device for the assembly and construction of wind power tower barrels, including a framework, a welding assembly, a first transmission member, a second transmission member, a clamping mechanism and a moving assembly. The welding assembly includes a welding component and a rotating component. The welding component includes a second telescopic member, a moving frame, a laser welding head and a CCD camera module. The rotating component, the first transmission member and the second transmission member are all in transmission connection with a driving assembly. The moving assembly includes a radial moving portion, a radial transmission portion and moving wheels. The radial moving portion includes a radial moving frame and a movable pin. A second rotating shaft between the two moving wheels is rotatably connected to the radial moving frame. A third meshing tooth is arranged on the inner end surface of one of the moving wheels, and the other end of the radial moving frame is in transmission connection with the third meshing tooth, which can automatically control the laser welding head to weld along the annular track of the joint, and has the characteristics of ingenious structural cooperation, wide application range and welding of multiple joints along the axis of the wind power tower barrel.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a laser welding device for assembling and constructing wind power tower barrels. Background Art

[0002] Before installing a wind power tower barrel, it is necessary to weld the barrel sections of the tower barrel one by one, transport the tower barrel welded in the workshop to the preset position for installing the tower barrel, and then install the tower barrel.

[0003] Patent No. CN116160169B discloses a circumferential welding device for a wind power tower barrel, which includes a support assembly and a welding assembly. The welding assembly includes a welding torch, an adjustment seat, and an adjustment ring. The adjustment ring is arranged on the adjustment seat; the adjustment ring includes a fixed part and a rotating part. The fixed part is fixedly connected to the adjustment seat, and a moving groove is opened on the fixed part. The rotating part slides in the moving groove, and a limiting structure for restricting the rotating part from detaching from the fixed part is arranged between the rotating part and the fixed part; a moving seat is connected to the inner side of the adjustment ring, and the welding torch is arranged on the moving seat; a driving structure for driving the moving seat to move along the circumferential direction of the adjustment ring is arranged on the moving seat, and the driving structure can also drive the rotating part to slide along the moving groove until the rotating part and the fixed part form a closed loop; the welding method includes steps such as placing the cylinder body, adjusting the welding torch, welding, withdrawing, and repeating; it has the effect of facilitating full welding of two adjacent cylinder bodies and improving the quality of the wind power tower barrel.

[0004] The welding of wind power tower barrels usually involves welding on both the inner and outer sides. The outer side welding is the most common and is usually used to ensure the structural strength and stability of the tower barrel. The outer side welding can effectively withstand wind force and other external loads, while the inner side welding is usually necessary, especially at the joints and connections of the tower barrel. The inner side welding can enhance the strength of the overall structure, prevent possible crack propagation, and ensure the integrity of the weld.

[0005] The above technical solutions can only weld the wind power tower barrel from the outside and cannot automatically weld multiple connections along the axis of the wind power tower barrel from the inside. Summary of the Invention

[0006] The purpose of the present invention is to provide a laser welding device for assembling and constructing wind power tower barrels, aiming to solve the problems existing when using the existing circumferential welding device for wind power tower barrels.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A laser welding device for assembling and constructing wind power tower barrels, including a framework and a clamping mechanism. The clamping mechanism is used for clamping the wind power tower barrel, and a linear guide rail is arranged on the surface of the framework. The device further includes:

[0008] A driving assembly fixedly connected to the framework;

[0009] A welding assembly, wherein the welding assembly comprises a welding component and a rotating component, wherein the welding component comprises a second telescopic member, a mobile frame, a laser welding head and a CCD camera module, wherein the mobile frame is fixedly connected to the second telescopic member, the second telescopic member is arranged on the surface of the rotating component, the rotating component is rotatably connected to the skeleton, the laser welding head is connected to the mobile frame, and the CCD camera module is fixedly connected to the laser welding head;

[0010] A first transmission member and a second transmission member rotatably connected to the frame, the rotating assembly, the first transmission member and the second transmission member are all transmission-connected to the driving assembly, and a curved guide rail is provided on the surface of the second transmission member;

[0011] The moving assembly includes a radial moving part, a radial transmission part and a moving wheel, the radial moving part includes a radial moving frame and a movable pin, the radial moving frame and the movable pin are fixedly connected, the movable pin is slidably connected in the arc guide rail and the linear guide rail at the same time, the radial transmission part is connected between the radial moving frame and the skeleton, the first transmission member is transmission-connected to one end of the radial moving frame, a second rotating shaft is fixedly connected between the two moving wheels, the second rotating shaft is rotationally connected to the radial moving frame, a third meshing tooth is provided on the inner end surface of one of the moving wheels, and the other end of the radial moving frame is transmission-connected to the third meshing tooth.

[0012] As a further solution of the present invention, the drive assembly includes a drive component and an adjustable transmission component, the drive component includes a driving member, a first transmission tube and a driven gear, the driven gear is fixedly connected to the first transmission tube, the driving member is transmission-connected to the driven gear, the adjustable transmission component includes a first transmission rod, a first spur gear, a second spur gear, a first telescopic member and a bent plate, the first spur gear and the second spur gear are both fixedly connected to the first transmission rod, the first transmission rod is movably mounted in the first transmission tube, one end of the bent plate is movably mounted on the surface of the first transmission rod, the other end of the bent plate is fixedly connected to the first telescopic member, the first transmission member and the second transmission member are both transmission-connected to the first spur gear, and the rotating component is transmission-connected to the second spur gear.

[0013] The beneficial effects of the present invention are: on the one hand, the radial position of the moving wheel and the laser welding head can be adjusted according to the inner diameter of the wind turbine tower; on the other hand, the moving wheel can be controlled to move along the inner wall of the wind turbine tower to the connection point, and the laser welding head can also be controlled to perform welding along the annular trajectory of the connection point. The present invention has the characteristics of ingenious structural coordination, easy adjustment, wide application range and automatic welding of multiple connections along the axis of the wind turbine tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first stereogram of the present invention.

[0015] Figure 2Exploded view of the present invention.

[0016] Figure 3 Stereogram of the skeleton of the embodiment of the present invention.

[0017] Figure 4 Exploded view of the drive assembly of the embodiment of the present invention.

[0018] Figure 5 Exploded view of the welding assembly of the embodiment of the present invention.

[0019] Figure 6 Stereogram of the first transmission member of the embodiment of the present invention.

[0020] Figure 7 Stereogram of the second transmission member of the embodiment of the present invention.

[0021] Figure 8 Exploded view of the moving assembly of the embodiment of the present invention.

[0022] Figure 9 Second stereogram of the present invention.

[0023] Figure 10 Cross-sectional view of the invention.

[0024] Figure 11 Partial enlarged view when the first limiting tooth and the second meshing tooth of the embodiment of the present invention are meshed.

[0025] Figure 12 Partial enlarged view when the second meshing tooth of the embodiment of the present invention is distributed between the first limiting tooth and the second limiting tooth.

[0026] Figure 13 Partial enlarged view when the second limiting tooth and the second meshing tooth of the embodiment of the present invention are meshed.

[0027] Figure 14 First plan view of welding from the inner side of the wind power tower barrel of the present invention.

[0028] Figure 15 Second plan view of welding from the inner side of the wind power tower barrel of the present invention.

[0029] Figure 16 Stereogram of welding from the outer side of the wind power tower barrel of the present invention.

[0030] Figure 17 For the present invention Figure 16 Partial enlarged view at position a.

[0031] Reference numerals: 1 - skeleton, 11 - fixed pipe, 12 - fixed disk, 13 - fixed joint, 14 - through hole, 15 - annular guide rail, 16 - linear guide rail, 2 - drive assembly, 21 - drive component, 211 - drive member, 212 - first transmission pipe, 213 - driven gear, 22 - adjustable transmission component, 221 - first transmission rod, 222 - first spur gear, 223 - second spur gear, 224 - first telescopic member, 225 - bent plate, 226 - moving rod, 227 - first limit tooth, 228 - second limit tooth, 3 - welding assembly, 31 - welding component, 311 - second telescopic member, 312 - moving frame, 313 - laser welding head, 314 - first rotating shaft, 315 - CCD camera module, 32 - rotating component, 321 - rotating cylinder, 322 - third spur gear, 323 - fixed frame, 324 - flexible wire, 325 - rotating joint, 4 - first transmission member, 41 - first helical gear, 42 - fourth spur gear, 5 - second transmission member, 51 - first engaging tooth, 52 - arc guide rail, 53 - second engaging tooth, 6 - moving assembly, 61 - radial moving part, 611 - radial moving frame, 612 - movable pin, 613 - clamping block, 62 - radial transmission part, 621 - second transmission pipe, 622 - second helical gear, 623 - second transmission rod, 624 - third helical gear, 63 - moving wheel, 631 - third engaging tooth, 632 - second rotating shaft, 7 - clamping mechanism, 71 - arc bushing, 72 - annular housing, 73 - radial block, 8 - wind power tower barrel. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0034] Please refer to Figures 1 to 17 , in an embodiment of the present invention, a laser welding device for assembling and constructing a wind power tower barrel includes a skeleton 1 and a clamping mechanism 7. The clamping mechanism 7 is used for clamping the wind power tower barrel 8. A linear guide rail 16 is arranged on the surface of the skeleton 1. The device further includes:

[0035] A drive assembly 2 fixedly connected to the skeleton 1;

[0036] The welding assembly 3 includes a welding component 31 and a rotating component 32. The welding component 31 includes a second telescopic member 311, a mobile frame 312, a laser welding head 313 and a CCD camera module 315. The mobile frame 312 is fixedly connected to the second telescopic member 311. The second telescopic member 311 is arranged on the surface of the rotating component 32. The rotating component 32 is rotatably connected to the skeleton 1. The laser welding head 313 is connected to the mobile frame 312. The CCD camera module 315 is fixedly connected to the laser welding head 313.

[0037] A first transmission member 4 and a second transmission member 5 are rotatably connected to the frame 1, the rotating assembly 32, the first transmission member 4 and the second transmission member 5 are all in transmission connection with the driving assembly 2, and an arc guide rail 52 is provided on the surface of the second transmission member 5;

[0038] The moving assembly 6 includes a radial moving part 61, a radial transmission part 62 and a moving wheel 63. The radial moving part 61 includes a radial moving frame 611 and a movable pin 612. The radial moving frame 611 and the movable pin 612 are fixedly connected. The movable pin 612 is simultaneously slidably connected in the arc guide rail 52 and the linear guide rail 16. The radial transmission part 62 is connected between the radial moving frame 611 and the skeleton 1. The first transmission member 4 is transmission-connected to one end of the radial moving frame 611. A second rotating shaft 632 is fixedly connected between the two moving wheels 63. The second rotating shaft 632 is rotationally connected to the radial moving frame 611. A third meshing tooth 631 is provided on the inner end surface of one of the moving wheels 63. The other end of the radial moving frame 611 is transmission-connected to the third meshing tooth 631. It should be noted that the radius of the moving wheel 63 is not less than the height of the ribs or flanges inside the tower, so that the moving wheel 63 can smoothly cross the ribs.

[0039] See also Figure 1 , Figure 3 , Figure 9 and Figure 10 Further, the skeleton 1 includes a fixed tube 11, a fixed disk 12, a fixed joint 13, a through hole 14 and an annular guide rail 15, the two fixed disks 12 are fixedly connected to the fixed tube 11, the fixed joint 13 is fixedly connected to one end of the fixed tube 11, the surface of the fixed disk 12 is provided with a linear guide rail 16, a through hole 14 and an annular guide rail 15, the first transmission rod 221 passes through the through hole 14, the first transmission member 4 is rotatably connected to the outside of the fixed tube 11, the second transmission member 5 is rotatably connected in the annular guide rail 15, the driving member 211 and the first telescopic member 224 are both fixedly connected to the fixed disk 12, the surface of the fixed disk 12 is provided with a first bracket and a second bracket, the radial transmission part 62 is connected to the first bracket, and the first transmission tube 212 is connected to the second bracket.

[0040] Please refer to Figure 1 、 Figure 5 、 Figure 9 and Figure 10 ; further, the rotating assembly 32 includes a rotating cylinder 321, a third straight gear 322, a fixing bracket 323, a flexible wire 324 and a rotating joint 325. The rotating cylinder 321 is rotatably connected inside the fixed tube 11. The third straight gear 322, the fixing bracket 323 and the rotating joint 325 are all fixedly connected to the rotating cylinder 321. The second straight gear 223 is in transmission connection with the third straight gear 322. The second telescopic member 311 is fixedly connected to the fixing bracket 323. The moving frame 312 is slidably connected to the fixing bracket 323. The flexible wire 324 is connected between the laser welding head 313 and the rotating joint 325. The rotating joint 325 is rotatably connected to the fixed joint 13. The fixed joint 13 is connected to the control device through a wire. Specifically, the fixed end of the second telescopic member 311 is fixedly connected to the fixing bracket 323, and the telescopic end of the second telescopic member 311 is fixedly connected to the moving frame 312.

[0041] Please refer to Figure 6 and Figure 11 ; further, the first transmission member 4 is fixedly connected with a first bevel gear 41 and a fourth straight gear 42 on its surface. The second transmission member 5 is provided with a first engaging tooth 51 and a second engaging tooth 53 on its surface. The fourth straight gear 42 and the first engaging tooth 51 are both in transmission connection with the first straight gear 222.

[0042] Please refer to Figures 8 to 13 ; further, the radial transmission part 62 includes a second transmission tube 621, a second bevel gear 622, a second transmission rod 623 and a third bevel gear 624. The second transmission tube 621 is connected to the first bracket. The radial moving frame 611 is connected to the second transmission rod 623. The second transmission rod 623 is movably sleeved inside the second transmission tube 621. The second transmission tube 621 and the second transmission rod 623 are respectively fixedly connected with a second bevel gear 622 and a third bevel gear 624 on their surfaces. The first bevel gear 41 is in transmission connection with the second bevel gear 622. The third engaging tooth 631 is in transmission connection with the third bevel gear 624.

[0043] Please refer to Figure 16 ; further, the clamping mechanism 7 includes an arc-shaped bushing 71, an annular housing 72 and a radial block 73. The arc-shaped bushing 71 is used for clamping the wind power tower barrel 8. The radial block 73 is fixedly connected to the surface of the annular housing 72.

[0044] Please refer to Figure 17 ; further, the radial moving part 61 further includes a clamping block 613. The movable pin 612 is fixedly connected to the clamping block 613. The clamping block 613 is in sliding contact with the radial block 73.

[0045] Please refer to Figure 5 , further, the welding assembly 31 further includes a first rotating shaft 314, the laser welding head 313 is fixedly connected to the first rotating shaft 314, and the first rotating shaft 314 is rotatably connected to the moving frame 312.

[0046] In the embodiment of the present invention, referring to the attached Figure 16 , when the joints or connections of the wind power tower barrel 8 need to be welded from the outside, first place the skeleton 1 flat on the surface of the annular housing 72, then rotate the skeleton 1 so that the clamping block 613 is aligned with the radial block 73, and then use the first telescopic member 224 to drive the first spur gear 222 to be in transmission connection with the first meshing tooth 51. Use the driving member 211 to control the radial movement of the radial moving frame 611, the movable pin 612, the second transmission rod 623 and the moving wheel 63 along the linear guide rail 16, so that the radial block 73 is inserted into the clamping block 613, and then used to fix the welding device under the wind power tower barrel 8. Manually adjust the angle of the laser welding head 313 with the first rotating shaft 314 as the axis, and use the second telescopic member 311 to control the horizontal movement of the moving frame 312 and the laser welding head 313, so as to align the laser welding head 313 with the connection. Immediately afterwards, use the drive system to control the rotation of the wind power tower barrel 8 in the arc-shaped bushing 71 (refer to CN117206770B - A welding auxiliary device for wind power tower barrel joints), and the laser welding head 313 can weld the rotating wind power tower barrel 8. When welding another connection, use a propulsion device or a traction device to control the movement of the wind power tower barrel 8 in several arc-shaped bushings 71.

[0047] Please refer to Figure 1 , Figure 4 , Figure 9 and Figure 10, in an embodiment of the present invention, the drive assembly 2 includes a drive component 21 and an adjustable transmission component 22. The drive component 21 includes a drive member 211, a first transmission pipe 212, and a driven gear 213. The driven gear 213 is fixedly connected to the first transmission pipe 212, and the drive member 211 is in transmission connection with the driven gear 213. The adjustable transmission component 22 includes a first transmission rod 221, a first spur gear 222, a second spur gear 223, a first telescopic member 224, and a bent plate 225. The first spur gear 222 and the second spur gear 223 are both fixedly connected to the first transmission rod 221. The first transmission rod 221 is movably sleeved in the first transmission pipe 212. One end of the bent plate 225 is movably sleeved on the surface of the first transmission rod 221, and the other end of the bent plate 225 is fixedly connected to the first telescopic member 224. The first transmission member 4 and the second transmission member 5 are both in transmission connection with the first spur gear 222, and the rotating component 32 is in transmission connection with the second spur gear 223. Limiting grooves are provided on the inner walls of the first transmission pipe 212 and the second transmission pipe 621, and limiting ribs are provided on the surfaces of the first transmission rod 221 and the second transmission rod 623. The limiting ribs are slidably connected to the limiting grooves. The rotating first transmission pipe 212 and the second transmission pipe 621 drive the first transmission rod 221 and the second transmission rod 623 to rotate through the limiting grooves and the limiting ribs respectively. The first telescopic member 224 and the second telescopic member 311 are both electric telescopic rods. Specifically, the fixed end of the first telescopic member 224 is fixedly connected to the fixed disk 12, and the telescopic end of the first telescopic member 224 is fixedly connected to the bent plate 225.

[0048] Please refer to Figure 4 , further, the adjustable transmission component 22 further includes a moving rod 226, a first limiting tooth 227, and a second limiting tooth 228. The moving rod 226 is fixedly connected to the bent plate 225, and the first limiting tooth 227 and the second limiting tooth 228 are provided on the surface of the moving rod 226.

[0049] In an embodiment of the present invention, when the first limiting tooth 227 meshes with the second meshing tooth 53, the fourth spur gear 42 is in transmission connection with the first spur gear 222, and the first spur gear 222 and the second spur gear 223 are disengaged from the first meshing tooth 51 and the third spur gear 322 respectively;

[0050] When the second meshing tooth 53 is distributed between the first limiting tooth 227 and the second limiting tooth 228, the first spur gear 222 and the second spur gear 223 are disengaged from the fourth spur gear 42 and the third spur gear 322 respectively, and the first meshing tooth 51 is disengaged from the first spur gear 222;

[0051] When the second limiting tooth 228 meshes with the second meshing tooth 53, both the fourth spur gear 42 and the first meshing tooth 51 are disengaged from the first spur gear 222, and the second spur gear 223 is in transmission connection with the third spur gear 322.

[0052] Working principle: On the basis of clamping the wind power tower barrel 8 by using the arc-shaped bushing 71, refer to the appendix Figure 14 and 15 . When the joints or connections of the wind power tower barrel 8 need to be welded from the inside, first place the skeleton 1 into the wind power tower barrel 8 from the end, refer to the appendix Figure 12 . Then, use the control device to control the first telescopic member 224. The first telescopic member 224 drives the moving rod 226 and the first transmission rod 221 to move through the bent plate 225, so that the first spur gear 222 is in transmission connection with the first meshing tooth 51. Then, the driving member 211 controls the rotation of the first transmission pipe 212 and the first transmission rod 221 through the driven gear 213. The rotating first transmission rod 221 controls the second transmission member 5 to rotate a certain angle through the first spur gear 222 and the first meshing tooth 51. The rotating second transmission member 5 controls the radial moving frame 611, the movable pin 612, the second transmission rod 623, and the moving wheel 63 to move radially along the linear guide rail 16 by using the arc-shaped guide rail 52 and the sliding connection of the movable pin 612, so as to control the three groups of moving wheels 63 to support on the inner wall of the wind power tower barrel 8;

[0053] Refer to the appendix Figure 11 . Then, use the first telescopic member 224 to control the first spur gear 222 to be in transmission connection with the fourth spur gear 42. At this time, the first limit tooth 227 meshes with the second meshing tooth 53 to prevent the second transmission member 5 from rotating or preventing the moving wheel 63 from moving radially. The driving member 211 controls the rotation of the first transmission member 4 through the first spur gear 222 and the fourth spur gear 42. The rotating first transmission member 4 controls the rotation of the second transmission pipe 621 and the second transmission rod 623 through the first helical gear 41 and the second helical gear 622. The rotating second transmission rod 623 controls the rotation of the moving wheel 63 and the second rotating shaft 632 through the third helical gear 624 and the third meshing tooth 631. The rotating moving wheel 63 can move along the inner wall of the wind power tower barrel 8. Use a ranging or positioning module such as a displacement sensor to monitor the position of the laser welding head 313 in real time, so as to accurately move or stop the moving wheel 63 or the laser welding head 313 along the axis of the wind power tower barrel 8 according to the length of the wind power tower barrel 8 or the position parameters of the connection;

[0054] Refer to the appendix Figure 13, then the first telescopic member 224 is used to control the transmission connection between the second spur gear 223 and the third spur gear 322. At this time, the second limiting tooth 228 meshes with the second meshing tooth 53. The second telescopic member 311 is used to control the radial movement of the moving frame 312 and the laser welding head 313 to adjust the distance between the laser welding head 313 and the joint. The driving member 211 controls the rotation of the rotating cylinder 321 and the welding assembly 31 through the second spur gear 223 and the third spur gear 322, so as to control the laser welding head 313 to perform circular welding along the cross-section of the wind power tower barrel 8. The CCD camera module 315 is also used to collect the weld image, and the control device is used to analyze the welding quality according to the weld image.

[0055] In summary, the present application uses the structural design in which the skeleton 1, the welding assembly 3, the first transmission member 4, the second transmission member 5 and the moving assembly 6 cooperate with each other. On the one hand, it can adjust the radial positions of the moving wheels 63 and the laser welding head 313 according to the inner diameter of the wind power tower barrel 8. On the other hand, it can control the moving wheels 63 to move along the inner wall of the wind power tower barrel 8 to the joint, and can also control the laser welding head 313 to perform welding along the circular track of the joint. It has the characteristics of ingenious structural cooperation, convenient adjustment, wide application range and continuous welding of multiple joints along the axis of the wind power tower barrel 8.

[0056] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0057] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser welding device for assembling and constructing a wind power tower barrel, comprising a framework and a clamping mechanism. The clamping mechanism is used for clamping the wind power tower barrel, and a linear guide rail is arranged on the surface of the framework. It is characterized in that, Further included are: A drive assembly fixedly connected to the framework; A welding assembly, which includes a welding component and a rotating component. The welding component includes a second telescopic member, a moving frame, a laser welding head, and a CCD camera module. The moving frame is fixedly connected to the second telescopic member. The second telescopic member is disposed on the surface of the rotating component. The rotating component is rotatably connected to the framework. The laser welding head is connected to the moving frame. The CCD camera module is fixedly connected to the laser welding head; A first transmission member and a second transmission member rotatably connected to the framework. The rotating component, the first transmission member, and the second transmission member are all in transmission connection with the drive assembly. An arc-shaped guide rail is disposed on the surface of the second transmission member; A moving assembly, which includes a radial moving portion, a radial transmission portion, and moving wheels. The radial moving portion includes a radial moving frame and a movable pin. The radial moving frame and the movable pin are fixedly connected. The movable pin is simultaneously slidably connected in the arc-shaped guide rail and the linear guide rail. The radial transmission portion is connected between the radial moving frame and the framework. The first transmission member is in transmission connection with one end of the radial moving frame. A second rotating shaft is fixedly connected between the two moving wheels. The second rotating shaft is rotatably connected to the radial moving frame. A third meshing tooth is disposed on the inner end surface of one of the moving wheels. The other end of the radial moving frame is in transmission connection with the third meshing tooth. The moving wheels can support on the inner wall of the wind power tower barrel; The clamping mechanism includes an arc-shaped bushing, an annular housing, and a radial block. The arc-shaped bushing is used for clamping the wind power tower barrel. The radial block is fixedly connected to the surface of the annular housing; The radial moving portion further includes a clamping block. The movable pin is fixedly connected to the clamping block. The clamping block is in sliding contact with the radial block. When the radial block is inserted into the clamping block, the laser welding device for assembling and constructing the wind power tower barrel can be fixed under the wind power tower barrel; The welding component further includes a first rotating shaft. The laser welding head is fixedly connected to the first rotating shaft. The first rotating shaft is rotatably connected to the moving frame.

2. The laser welding device for assembling and constructing a wind power tower barrel according to claim 1, characterized in that, The drive assembly includes a drive component and an adjustable transmission component. The drive component includes a drive member, a first transmission pipe, and a driven gear. The driven gear is fixedly connected to the first transmission pipe. The drive member is in transmission connection with the driven gear. The adjustable transmission component includes a first transmission rod, a first straight gear, a second straight gear, a first telescopic member, and a bent plate. The first straight gear and the second straight gear are both fixedly connected to the first transmission rod. The first transmission rod is movably sleeved in the first transmission pipe. One end of the bent plate is movably sleeved on the surface of the first transmission rod. The other end of the bent plate is fixedly connected to the first telescopic member. The first transmission member and the second transmission member are both in transmission connection with the first straight gear. The rotating component is in transmission connection with the second straight gear.

3. A laser welding device for assembling and constructing a wind power tower barrel according to claim 2, characterized in that, The framework includes a fixed pipe, fixed disks, fixed joints, through holes, and an annular guide rail. The two fixed disks are both fixedly connected to the fixed pipe. The fixed joint is fixedly connected to one end of the fixed pipe. A linear guide rail, a through hole, and an annular guide rail are disposed on the surface of the fixed disk. The first transmission rod penetrates through the through hole. The first transmission member is rotatably connected to the outside of the fixed pipe. The second transmission member is rotatably connected in the annular guide rail. The drive member and the first telescopic member are both fixedly connected to the fixed disk. A first bracket and a second bracket are disposed on the surface of the fixed disk. The radial transmission portion is connected to the first bracket. The first transmission pipe is connected to the second bracket.

4. A laser welding device for assembling and constructing a wind power tower barrel according to claim 3, characterized in that, The rotating assembly includes a rotating cylinder, a third straight gear, a fixing bracket, a flexible wire, and a rotating joint. The rotating cylinder is rotatably connected to the inner side of the fixed tube. The third straight gear, the fixing bracket, and the rotating joint are all fixedly connected to the rotating cylinder. The second straight gear is in transmission connection with the third straight gear. The second telescopic member is fixedly connected to the fixing bracket. The moving bracket is slidably connected to the fixing bracket. The flexible wire is connected between the laser welding head and the rotating joint. The rotating joint is rotatably connected to the fixed joint. The fixed joint is connected to the control device through a wire.

5. A laser welding device for assembling and constructing a wind power tower barrel according to claim 4, characterized in that, A first helical gear and a fourth straight gear are fixedly connected to the surface of the first transmission member. A first meshing tooth and a second meshing tooth are provided on the surface of the second transmission member. The fourth straight gear and the first meshing tooth are both in transmission connection with the first straight gear.

6. A laser welding device for assembling and constructing a wind power tower barrel according to claim 5, characterized in that, The radial transmission part includes a second transmission tube, a second helical gear, a second transmission rod, and a third helical gear. The second transmission tube is connected to the first bracket. The radial moving bracket is connected to the second transmission rod. The second transmission rod is movably sleeved in the second transmission tube. A second helical gear and a third helical gear are respectively fixedly connected to the surfaces of the second transmission tube and the second transmission rod. The first helical gear is in transmission connection with the second helical gear. The third meshing tooth is in transmission connection with the third helical gear.

7. A laser welding device for assembling and constructing a wind power tower barrel according to claim 6, characterized in that, The adjustable transmission assembly further includes a moving rod, a first limiting tooth, and a second limiting tooth. The moving rod is fixedly connected to the bent plate. The first limiting tooth and the second limiting tooth are provided on the surface of the moving rod. When the first limiting tooth meshes with the second meshing tooth, the fourth straight gear is in transmission connection with the first straight gear, and the first straight gear and the second straight gear are respectively disengaged from the first meshing tooth and the third straight gear. When the second meshing tooth is distributed between the first limiting tooth and the second limiting tooth, the first straight gear and the second straight gear are respectively disengaged from the fourth straight gear and the third straight gear, and the first meshing tooth is disengaged from the first straight gear. When the second limiting tooth meshes with the second meshing tooth, both the fourth straight gear and the first meshing tooth are disengaged from the first straight gear, and the second straight gear is in transmission connection with the third straight gear.

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