Welding positioning tool for assembling lightning protection ring of wind power generation blade

Abstract

The invention discloses a welding positioning tool for assembling lightning protection rings of wind power generation blades, and relates to the technical field of positioning tools, the welding positioning tool comprises a bottom plate, fan blades and a plurality of groups of lightning protection rings, the bottom plate is fixedly connected with a fixing frame, the fixing frame is provided with a clamping plate, and the clamping plate is used for clamping a fixing seat at the rear end of the fan blades; a supporting rod is fixedly connected to the upper front portion of the fixing frame, and a positioning frame is arranged on the supporting rod and connected with the supporting rod in a sliding mode. A clamping mechanism is arranged on the positioning frame and used for clamping a set of lightning protection rings and conveying the clamped set of lightning protection rings to the position surrounding the fan blades. An equidistant mechanism is arranged on the bottom plate, and is used for driving the clamping mechanism to move forwards every time before the clamping mechanism clamps and positions the next group of lightning protection rings, and the moving distances every time are equal; according to the device, after the lightning protection rings of the two parts are adjusted to the corresponding inclination degree through the adjusting mechanism, the lightning protection rings of the two parts are combined together to surround the fan blades, and at the moment, the regrouped lightning protection rings can be perfectly welded to the fan blades.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning tooling, and specifically relates to a welding positioning tooling for assembling a lightning protection ring of a wind power generation blade. Background Art

[0002] When a wind turbine operates during a thunderstorm, in order to avoid being struck by lightning, a lightning protection ring is usually welded on the fan blade; since the shape of the fan blade usually gradually narrows from the root to the tip, and at the same time the fan blade body is slightly twisted, when welding the lightning protection ring, it is necessary to position the lightning protection ring to fit on the surface of the fan blade, and the angles that need to be adjusted for the lightning protection rings at different positions are all different, so it is more complicated to position the lightning protection ring; in addition, multiple lightning protection rings on the fan blade should be evenly distributed to ensure that all parts of the fan blade can be protected, which will further increase the difficulty of positioning the lightning protection ring. Summary of the Invention

[0003] The purpose of the present invention is to provide a welding positioning tooling for assembling a lightning protection ring of a wind power generation blade to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A welding positioning tooling for assembling a lightning protection ring of a wind power generation blade, including a bottom plate, a fan blade, and multiple groups of lightning protection rings. A fixing frame is fixedly connected to the bottom plate, and a clamping plate is provided on the fixing frame for clamping the rear fixing seat of the fan blade; a support rod is fixedly connected to the fixing frame, and a positioning frame is slidably provided on the support rod; A clamping mechanism is provided on the positioning frame for clamping a group of lightning protection rings and transporting the clamped group of lightning protection rings to a position surrounding the fan blade; An adjusting mechanism is provided on the positioning frame for adjusting the clamped group of lightning protection rings to an inclined state corresponding to the fan blade; An equidistant mechanism is provided on the bottom plate for driving the clamping mechanism to move equidistantly and intermittently along the axis direction of the fan blade.

[0005] Preferably, the clamping mechanism includes two threaded rods, the two threaded rods are symmetrically distributed on the left and right sides of the fan blade and both threaded rods are slidably connected to the positioning frame; a first connecting block is fixedly connected to one end of the threaded rod close to the fan blade, an arc-shaped rack is slidably connected in the first connecting block, a clamping rod is fixedly connected to one end of the arc-shaped rack close to the fan blade, the clamping rod is electrically driven and the clamping rod is used for clamping half of a group of lightning protection rings.

[0006] Preferably, the adjusting mechanism includes a sprocket rotatably connected to the first connecting block. A worm is fixedly connected to the bottom end of the sprocket. A worm gear is engaged with the worm and the worm gear is rotatably connected to the first connecting block. A gear is rotatably connected to an inner part of the first connecting block. The gear is engaged with the arc-shaped rack and the gear is fixedly connected to the worm. Two first driving mechanisms are provided on the positioning frame. The two first driving mechanisms are respectively used to drive the two threaded rods to move relative to the positioning frame. Two second driving mechanisms are provided on the bottom plate. The two second driving mechanisms are respectively used to drive the two sprockets to rotate.

[0007] Preferably, the first driving mechanism includes a motor fixed on the positioning frame. A first belt pulley is fixedly connected to an output shaft of the motor. The first belt pulley is rotatably connected to the positioning frame. A second belt pulley is provided above the first belt pulley. The second belt pulley is rotatably connected to the positioning frame and the second belt pulley is threadedly connected to the threaded rod. A belt is provided between the first belt pulley and the second belt pulley. The belt is engaged with both the first belt pulley and the second belt pulley.

[0008] Preferably, the equidistant mechanism includes two slide rails. The two slide rails are symmetrically distributed on the left and right sides of the bottom plate and both slide rails are fixedly connected to the bottom plate. A plurality of positioning plates are provided above the bottom plate. The plurality of positioning plates are equidistantly distributed and the plurality of positioning plates are all slidably connected to the two slide rails. The last positioning plate is fixedly connected to the two slide rails. First baffles are symmetrically and fixedly connected to the left and right sides of the positioning plate. Clamping mechanisms are symmetrically provided on the left and right sides of the positioning frame. The clamping mechanisms are used to cooperate with the first baffles to clamp the positioning frame. A distance adjusting mechanism is provided on the bottom plate. The distance adjusting mechanism is used to adjust the distance between the plurality of positioning plates. A moving mechanism is provided on the fixing frame. The moving mechanism is used to drive the positioning frame to move forward.

[0009] Preferably, the clamping mechanism includes a first sliding frame. The first sliding frame is located at the bottom side of the positioning frame and the first sliding frame is slidably connected to the positioning frame. A second connecting block is fixedly connected to an inner end of the first sliding frame. A stop rod is fixedly connected to the bottom position of the second connecting block. The stop rod is in clamping cooperation with the first baffle. A first spring is sleeved on the first sliding frame. One end of the first spring is fixedly connected to the positioning frame and the other end is fixedly connected to the second connecting block. Connecting plates are symmetrically provided on the left and right sides of the positioning frame. The left and right connecting plates are respectively fixedly connected to the left and right threaded rods. A second sliding frame is slidably connected to the bottom position of the connecting plate. A first pushing plate is rotatably connected to the bottom position of the second sliding frame. A second pushing plate is fixedly connected to an outer end of the first sliding frame. Push rods are symmetrically and fixedly connected to the front and rear sides of the second sliding frame. An inclined rod is provided in a direction away from the positioning frame on the push rod. The inclined rod is fixedly connected to the positioning frame.

[0010] Preferably, the upper end part of the second push plate and the middle part of the first push plate are at the same height; a second baffle is fixedly connected to the bottom end of the connecting plate, and the second baffle is attached to one end part of the inner side of the first push plate.

[0011] Preferably, the distance adjusting mechanism includes a scissors frame. The number of the middle cross parts of the scissors frame is equal to the number of the positioning plates, and the axes of the multiple middle cross parts of the scissors frame are respectively fixedly connected to the multiple positioning plates; driving blocks are rotatably connected to the left and right positions at the rear end of the scissors frame; a sliding block is arranged between the two driving blocks. The sliding block is slidably connected to the bottom plate, and a bidirectional threaded rod is arranged on the sliding block. The bidirectional threaded rod is rotatably connected to the sliding block, and the left and right parts of the bidirectional threaded rod are respectively threadedly connected to the driving blocks on the left and right sides; the bidirectional threaded rod has self-locking property; the sliding direction of the sliding block is in the front-back direction.

[0012] Preferably, the moving mechanism includes a second spring, and the second spring is sleeved on the rear side part of the support rod; one end of the second spring is fixedly connected to the positioning frame and the other end is fixedly connected to the fixed frame.

[0013] Preferably, the second driving mechanism includes a winding box fixedly connected to the rear side position of the bottom plate. A chain is elastically wound in the winding box. The front end part of the chain is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to the frontmost first baffle; the chain and the sprocket are at the same height.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By starting the clamping mechanism to clamp two parts of the lightning protection ring, and then starting the adjusting mechanism. Since the width of the fan blade gradually decreases from the rear to the front and the surface of the fan blade is twisted, when welding the lightning protection ring on the surface of the fan blade, it is necessary to adjust the lightning protection ring to the same inclination degree as the welding position of the fan blade; after adjusting the two parts of the lightning protection ring to the corresponding inclination degrees through the adjusting mechanism, the two parts of the lightning protection ring are combined together to surround the fan blade. At this time, the group of lightning protection rings can be welded on the fan blade perfectly. Before the clamping mechanism clamps and position-welds the next group of lightning protection rings, the present invention drives the clamping mechanism to move forward through the equal-distance mechanism and the distance of each forward movement is equal, so as to ensure that the multiple lightning protection rings on the fan blade are arranged at equal distances, enhancing the lightning protection effect of the lightning protection ring. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic rear view structure diagram of the present invention; Figure 3 is a schematic diagram of the disassembled structure of the present invention; Figure 4 is a schematic diagram of the structure of the positioning frame in the present invention; Figure 5 isFigure 4 Schematic enlarged structure diagram of A in the present invention; Figure 6 Schematic structure diagram of the adjusting mechanism in the present invention; Figure 7 Schematic structure diagram of the distance adjusting mechanism in the present invention; Figure 8 Schematic structure diagram of the state after the lightning protection ring in the present invention is welded.

[0015] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1. Base plate; 2. Fan blade; 3. Lightning protection ring; 4. Fixed frame; 5. Clamping plate; 6. Support rod; 7. Positioning frame; 8. Threaded rod; 9. First connecting block; 10. Arc-shaped rack; 11. Clamping rod; 13. Gear; 14. Motor; 15. First pulley; 16. Second pulley; 17. Belt; 18. Slide rail; 19. Positioning plate; 20. First baffle; 21. First sliding frame; 22. Second connecting block; 23. Stop bar; 24. First spring; 25. Connecting plate; 26. Second sliding frame; 27. First pushing plate; 28. Second pushing plate; 29. Push rod; 30. Inclined rod; 31. Second baffle; 32. Scissor frame; 33. Driving block; 34. Sliding block; 35. Bidirectional threaded rod; 36. Second spring; 37. Sprocket; 38. Worm; 39. Worm gear; 40. Reel box; 41. Chain; 42. Connecting rod. Detailed implementation manners

[0016] Please refer to Figure 1-8 , the present invention provides a technical solution: A welding positioning tool for assembling the lightning protection ring of a wind power generation blade, including a base plate 1, a fixed frame 4 is fixedly connected to the base plate 1, a clamping plate 5 is provided on the fixed frame 4, and the clamping plate 5 is used to clamp the fixed seat at the rear end of the fan blade 2; a support rod 6 is fixedly connected to the fixed frame 4, and a positioning frame 7 is slidably arranged on the support rod 6; A clamping mechanism is provided on the positioning frame 7, and the clamping mechanism is used to clamp the lightning protection ring 3 and at the same time transport the two half rings of the lightning protection ring 3 to the welding position of the fan blade 2; and close the two half rings of the lightning protection ring 3 to surround the fan blade 2; An adjusting mechanism is provided on the positioning frame 7, and the adjusting mechanism is used to adjust the clamped group of lightning protection rings 3 to an inclined state corresponding to the fan blade 2; An equidistant mechanism is provided on the base plate 1, and the equidistant mechanism is used to drive the clamping mechanism to move equidistantly and intermittently along the axis direction of the fan blade.

[0017] During operation, first clamp the fixing seat at the rear end of the fan blade 2 through the clamping plate 5, and then separate the two parts of a set of lightning protection rings 3 (usually a set of lightning protection rings 3 consists of two half lightning protection rings 3). Clamp the two parts of the lightning protection rings 3 by starting the clamping mechanism, and then start the adjusting mechanism. Since the width of the fan blade 2 gradually decreases from the rear to the front and the surface of the fan blade 2 is twisted, when welding the lightning protection rings 3 on the surface of the fan blade 2, it is necessary to adjust the lightning protection rings 3 to the same inclination degree as the welding position of the fan blade 2. After adjusting the two parts of the lightning protection rings 3 to the corresponding inclination degrees through the adjusting mechanism, the two parts of the lightning protection rings 3 are combined together and fitted to the periphery of the welded part of the fan blade 2. At this time, the set of lightning protection rings 3 can be welded to the fan blade 2 perfectly; Since multiple lightning protection rings 3 are often welded on one fan blade 2, and in order to ensure the lightning protection effect, multiple lightning protection rings 3 are usually equidistantly distributed. Therefore, before the clamping mechanism clamps and positions and welds the next set of lightning protection rings 3, the equidistant mechanism will drive the clamping mechanism to move forward and the distance of each forward movement is equal, so as to ensure that the multiple lightning protection rings 3 on the fan blade 2 are equidistantly arranged, improve the welding efficiency and ensure the welding quality.

[0018] As Figure 4 , Figure 6 As shown in the figure, as a further solution of the present invention, the clamping mechanism includes two threaded rods 8, the two threaded rods 8 are symmetrically distributed on the left and right sides of the fan blade 2 and both threaded rods 8 are slidably connected to the positioning frame 7; a first connecting block 9 is fixedly connected to one end of the threaded rod 8 close to the fan blade 2, an arc-shaped rack 10 is slidably connected inside the first connecting block 9, a clamping rod 11 is fixedly connected to one end of the arc-shaped rack 10 close to the fan blade 2, the clamping rod 11 is electrically driven and the clamping rod 11 is used to clamp one half part of a set of lightning protection rings 3; During operation, a set of lightning protection rings 3 consists of two half lightning protection rings 3. By placing the middle part of the half lightning protection ring 3 on the clamping rod 11 and then starting the clamping rod 11, the half lightning protection ring 3 can be clamped.

[0019] As Figure 4-6 As shown in the figure, as a further solution of the present invention, the adjusting mechanism includes a sprocket 37 rotatably connected to the first connecting block 9, a worm 38 is fixedly connected to the bottom end of the sprocket 37, a worm gear 39 is engaged with the worm 38 and the worm gear 39 is rotatably connected to the first connecting block 9; a gear 13 is rotatably connected to the inner part of the first connecting block 9, the gear 13 is engaged with the arc-shaped rack 10 and the gear 13 is fixedly connected to the worm 38; two first driving mechanisms are provided on the positioning frame 7, and the two first driving mechanisms are used to drive the two threaded rods 8 to move relative to the positioning frame 7 respectively; two second driving mechanisms are provided on the bottom plate 1, and the two second driving mechanisms are respectively used to drive the two sprockets 37 to rotate; The first driving mechanism includes a motor 14 fixed on the positioning frame 7. A first pulley 15 is fixedly connected to the output shaft of the motor 14, and the first pulley 15 is rotatably connected to the positioning frame 7. Above the first pulley 15, there is a second pulley 16, which is rotatably connected to the positioning frame 7 and the second pulley 16 is threadedly connected to the threaded rod 8. A belt 17 is provided between the first pulley 15 and the second pulley 16, and the belt 17 meshes with both the first pulley 15 and the second pulley 16 at the same time; During operation, when it is necessary to adjust the half lightning protection ring 3 to the same inclination as the welding position of the fan blade 2, the sprocket 37 on the first connecting block 9 is driven by the second driving mechanism to rotate. The sprocket 37 drives the worm 38 to rotate, and the worm 38 drives the gear 13 to rotate through the worm gear. When the gear 13 rotates, it will drive the arc-shaped rack 10 slidably arranged on the first connecting block 9 to rotate along its center. When the arc-shaped rack 10 rotates, it will drive the clamping rod 11 and the half lightning protection ring 3 to adjust the angle. When the half lightning protection ring 3 is adjusted to the appropriate angle, the motors 14 on both left and right sides are started at this time. The motor 14 drives the first pulley 15 connected thereto to rotate. The first pulley 15 drives the second pulley 16 to rotate through the belt 17. When the second pulley 16 rotates, it will drive the threaded rod 8 to move in the direction close to the fan blade 2. When the threaded rod 8 moves, it will drive the half lightning protection ring 3 to move to the position close to the fan blade 2. When the lightning protection rings 3 on both left and right sides move to the position where they are in contact with the fan blade 2, the two half lightning protection rings 3 on both sides are combined together, and then a complete lightning protection ring 3 can be welded to the fan blade 2.

[0020] As Figure 4-5 , Figure 7 shown, as a further solution of the present invention, the equidistant mechanism includes two slide rails 18, which are symmetrically distributed on the left and right sides of the bottom plate 1 and both slide rails 18 are fixedly connected to the bottom plate 1. Above the bottom plate 1, there are a plurality of positioning plates 19, which are equidistantly distributed and all the positioning plates 19 are slidably connected to the two slide rails 18. The last positioning plate 19 is fixedly connected to the two slide rails 18. On the left and right sides of the positioning plate 19, first baffles 20 are symmetrically and fixedly connected. On the left and right sides of the positioning frame 7, engaging mechanisms are symmetrically provided, and the engaging mechanisms are used to cooperate with the first baffles 20 to clamp the positioning frame 7. On the bottom plate 1, a distance adjusting mechanism is provided, and the distance adjusting mechanism is used to adjust the distance between the plurality of positioning plates 19. On the fixed frame 4, a moving mechanism is provided, and the moving mechanism is used to drive the positioning frame 7 to move forward; The clamping mechanism includes a first sliding frame 21, which is located at the bottom side of the positioning frame 7 and is slidably connected to the positioning frame 7; at one end of the inner side of the first sliding frame 21, a second connecting block 22 is fixedly connected, and at the bottom position of the second connecting block 22, a stop rod 23 is fixedly connected, and the stop rod 23 is in clamping fit with the first baffle 20; a first spring 24 is sleeved on the first sliding frame 21, one end of the first spring 24 is fixedly connected to the positioning frame 7 and the other end is fixedly connected to the second connecting block 22; connecting plates 25 are symmetrically arranged at the left and right positions on the positioning frame 7, and the left and right connecting plates 25 are respectively fixedly connected to the left and right threaded rods 8; at the bottom position of the connecting plate 25, a second sliding frame 26 is slidably connected, and at the bottom position of the second sliding frame 26, a first pushing plate 27 is rotatably connected; at one end of the outer side of the first sliding frame 21, a second pushing plate 28 is fixedly connected; at the front and back positions of the second sliding frame 26, push rods 29 are symmetrically and fixedly connected, and on the side of the push rod 29 away from the positioning frame 7, an inclined rod 30 is arranged, and the inclined rod 30 is fixedly connected to the positioning frame 7; The upper part of the second pushing plate 28 and the middle part of the first pushing plate 27 are at the same height; at the bottom end of the connecting plate 25, a second baffle 31 is fixedly connected, and the second baffle 31 is in contact with one end part of the inner side of the first pushing plate 27; During operation, when a group of lightning protection rings 3 are welded, at this time, the clamping rods 11 on the left and right sides are started to release the group of lightning protection rings 3, and at the same time, the motors 14 on the left and right sides are started to drive the threaded rods 8 to reset; when the threaded rods 8 are reset, the threaded rods 8 will drive the connecting plates 25 to move away from the fan blades 2, the connecting plates 25 drive the second sliding frames 26 to move, and the second sliding frames 26 drive the first pushing plates 27 to move; when the first pushing plate 27 moves to the position where it is in contact with the second pushing plate 28, at this time, as the threaded rod 8 continues to move, the first pushing plate 27 will push the second pushing plate 28 to move, and the second pushing plate 28 will drive the first sliding frame 21 to move, the first sliding frame 21 drives the second connecting block 22 to move, and the second connecting block 22 will drive the stop rod connected to it to move in the direction away from the first baffle 20; at the same time when the first pushing plate 27 is in contact with the second pushing plate 28, the two push rods 29 on the second sliding frame 26 are respectively in contact with the two inclined rods 30, and as the push rods 29 move, the push rods 29 will be gradually pushed upward by the inclined rods 30, so the second sliding frame 26 and the first pushing plate 27 start to move upward; when the stop rod 23 completely moves to the position where it is separated from the first baffle 20, at this time, under the extrusion of the inclined rod 30, the first pushing plate 27 moves to the upper position of the second pushing plate 28, the first pushing plate 27 crosses the second pushing plate 28, the second pushing plate 28 loses the thrust, and under the action of the first spring 24, the first sliding frame 21 automatically resets, and the stop rod 23 automatically resets; when the positioning frame 7 moves forward to the position above the next positioning plate 19, at this time, the stop rod 23 will be blocked and clamped by the next first baffle 20, and the positioning frame 7 will be stuck at the position above the positioning plate 19.

[0021] AsFigure 7 As shown in the figure, as a further solution of the present invention, the distance adjustment mechanism includes a scissors frame 32. The number of the middle cross parts of the scissors frame 32 is equal to the number of the positioning plates 19, and the axes of the multiple middle cross parts of the scissors frame 32 are respectively fixedly connected with the multiple positioning plates 19. Driving blocks 33 are rotatably connected to the left and right sides at the rear end of the scissors frame 32. A sliding block 34 is arranged between the two driving blocks 33. The sliding block 34 is slidably connected to the bottom plate 1, and a bidirectional threaded rod 35 is arranged on the sliding block 34. The bidirectional threaded rod 35 is rotatably connected to the sliding block 34, and the left and right sides of the bidirectional threaded rod 35 are respectively threadedly connected with the driving blocks 33 on the left and right sides. The bidirectional threaded rod 35 has self-locking property. The sliding direction of the sliding block 34 is in the front-back direction. During operation, by manually rotating the bidirectional threaded rod 35, the driving blocks 33 on the left and right sides can be driven to move towards each other or away from each other simultaneously. When the two driving blocks 33 move towards each other, the scissors frame 32 starts to stretch, so that the distance between each positioning plate 19 can be increased. When the driving blocks 33 move away from each other, the scissors frame 32 starts to contract, so that the distance between each positioning plate 19 can be decreased.

[0022] As Figure 1 、 Figure 3 As shown in the figure, as a further solution of the present invention, the moving mechanism includes a second spring 36. The second spring 36 is sleeved on the rear side part of the support rod 6. One end of the second spring 36 is fixedly connected with the positioning frame 7, and the other end is fixedly connected with the fixed frame 4. During operation, under the action of the second spring 36, the second spring 36 can always apply a forward elastic force to the positioning frame 7, so as to urge the positioning frame 7 to have the power to move forward.

[0023] As Figure 6-7 As shown in the figure, as a further solution of the present invention, the second driving mechanism includes a winding box 40 fixedly connected to the rear side position of the bottom plate 1. A chain 41 is elastically wound in the winding box 40. The front end part of the chain 41 is fixedly connected with a connecting rod 42. The connecting rod 42 is fixedly connected with the foremost first baffle 20. The chain 41 and the sprocket 37 are at the same height. During operation, first adjust the length of the scissor lift 32 according to the length of the fan blade 2. The scissor lift 32 will arrange each first baffle 20 at equal intervals, and the position of the frontmost first baffle 20 corresponds to the position of the last lightning protection ring 3 on the fan blade 2. When the scissor lift 32 extends, the frontmost first baffle 20 drives the connecting rod 42 connected to it to move forward, and the connecting rod 42 pulls out a certain length of the chain 41 from the winding box 40. Since the winding shaft in the winding box 40 has a certain elastic potential energy, the pulled-out chain 41 remains in a straight state. When the scissor lift 32 extends to the set degree, the chain 41 will be automatically pulled out to the most appropriate length. After a set of lightning protection rings 3 are installed, the threaded rod 8 drives the first connecting block 9 to move away from the fan blade 2. When the first connecting block 9 moves to the position farthest from the fan blade 2, the sprocket 37 on the first connecting block 9 will engage with the chain 41. As the positioning frame 7 starts to move to the next installation position, the sprocket 37 rotates under the action of the chain 41 and adjusts the inclination of the arc-shaped rack 10. When the positioning frame 7 moves to the next installation position, the inclination of the arc-shaped rack 10 is exactly the same as the inclination of the fan blade 2 at this position. Then, the half-ring of the new lightning protection ring 3 can be installed on the clamping rod 11. At this time, the inclination of the half-ring of the lightning protection ring 3 at this position is the same as the inclination of this part of the fan blade 2.

Claims

1. A welding positioning tooling for assembling a lightning protection ring of a wind power generation blade, comprising a bottom plate (1), a fan blade (2) and multiple groups of lightning protection rings (3), characterized in that: A fixing frame (4) is fixedly connected to the bottom plate (1). A clamping plate (5) is provided on the fixing frame (4). The clamping plate (5) is used for clamping the fixed seat at the rear end of the fan blade (2). A support rod (6) is fixedly connected to the fixing frame (4). A positioning frame (7) is slidably provided on the support rod (6). A clamping mechanism is provided on the positioning frame (7). The clamping mechanism is used for clamping a group of lightning protection rings (3) and transporting the clamped group of lightning protection rings (3) to a position surrounding the fan blade (2). An adjusting mechanism is provided on the positioning frame (7). The adjusting mechanism is used for adjusting the clamped group of lightning protection rings (3) to an inclined state corresponding to the fan blade (2). An equidistant mechanism is provided on the bottom plate (1). The equidistant mechanism is used for driving the clamping mechanism to move equidistantly and intermittently along the axis direction of the fan blade.

2. The welding positioning tooling for assembling the lightning protection ring of a wind power generation blade according to claim 1, wherein: The clamping mechanism includes two threaded rods (8). The two threaded rods (8) are symmetrically distributed on the left and right sides of the fan blade (2), and both threaded rods (8) are slidably connected to the positioning frame (7). A first connecting block (9) is fixedly connected to one end of the threaded rod (8) close to the fan blade (2). An arc-shaped rack (10) is slidably connected inside the first connecting block (9). A clamping rod (11) is fixedly connected to one end of the arc-shaped rack (10) close to the fan blade (2). The clamping rod (11) is electrically driven and is used for clamping half of a group of lightning protection rings (3).

3. The welding positioning tooling for assembling the lightning protection ring of a wind power blade according to claim 2, characterized in that: The adjusting mechanism includes a sprocket (37) rotatably connected to the first connecting block (9). A worm (38) is fixedly connected to the bottom end of the sprocket (37). A worm gear (39) is meshed with the worm (38), and the worm gear (39) is rotatably connected to the first connecting block (9). A gear (13) is rotatably connected to the inner part of the first connecting block (9). The gear (13) is meshed with the arc-shaped rack (10) and is fixedly connected to the worm (38). Two first driving mechanisms are provided on the positioning frame (7). The two first driving mechanisms are used for respectively driving the two threaded rods (8) to move relative to the positioning frame (7). Two second driving mechanisms are provided on the bottom plate (1). The two second driving mechanisms are respectively used for driving the two sprockets (37) to rotate.

4. A welding positioning tooling for assembling a lightning protection ring of a wind power generation blade according to claim 3, characterized in that: The first driving mechanism includes a motor (14) fixed on the positioning frame (7). A first pulley (15) is fixedly connected to the output shaft of the motor (14). The first pulley (15) is rotatably connected to the positioning frame (7). A second pulley (16) is provided above the first pulley (15). The second pulley (16) is rotatably connected to the positioning frame (7) and is threadedly connected to the threaded rod (8). A belt (17) is provided between the first pulley (15) and the second pulley (16). The belt (17) is meshed with both the first pulley (15) and the second pulley (16).

5. The welding positioning tooling for assembling the lightning protection ring of a wind power blade according to claim 3, characterized in that: The equidistant mechanism includes two slide rails (18), and the two slide rails (18) are symmetrically distributed on the left and right sides of the bottom plate (1) and are both fixedly connected to the bottom plate (1); above the bottom plate (1), there are a plurality of positioning plates (19), the plurality of positioning plates (19) are equidistantly distributed and the plurality of positioning plates (19) are all slidably connected to the two slide rails (18); the last positioning plate (19) is fixedly connected to the two slide rails (18); on the left and right sides of the positioning plate (19), first baffles (20) are symmetrically and fixedly connected; on the left and right sides of the positioning frame (7), engaging mechanisms are symmetrically provided, and the engaging mechanisms are used to cooperate with the first baffles (20) to clamp the positioning frame (7); on the bottom plate (1), a distance adjusting mechanism is provided, and the distance adjusting mechanism is used to adjust the distance between the plurality of positioning plates (19); on the fixed frame (4), a moving mechanism is provided, and the moving mechanism is used to drive the positioning frame (7) to move forward.

6. The welding positioning tooling for assembling the lightning protection ring of a wind power blade according to claim 5, characterized in that: The engaging mechanism includes a first sliding frame (21), the first sliding frame (21) is located at the bottom side of the positioning frame (7) and the first sliding frame (21) is slidably connected to the positioning frame (7); at the inner end of the first sliding frame (21) on the inner side, a second connecting block (22) is fixedly connected, at the bottom position of the second connecting block (22), a stop rod (23) is fixedly connected, and the stop rod (23) is in clamping fit with the first baffle (20); a first spring (24) is sleeved on the first sliding frame (21), one end of the first spring (24) is fixedly connected to the positioning frame (7) and the other end is fixedly connected to the second connecting block (22); on the left and right sides of the positioning frame (7), connecting plates (25) are symmetrically provided, and the left and right connecting plates (25) are respectively fixedly connected to the left and right threaded rods (8); at the bottom position of the connecting plate (25), a second sliding frame (26) is slidably connected, at the bottom position of the second sliding frame (26), a first push plate (27) is rotatably connected; at the outer end of the first sliding frame (21) on the outer side, a second push plate (28) is fixedly connected; on the front and rear sides of the second sliding frame (26), push rods (29) are symmetrically and fixedly connected, on the side away from the positioning frame (7) of the push rod (29), an inclined rod (30) is provided, and the inclined rod (30) is fixedly connected to the positioning frame (7).

7. The welding positioning tooling for assembling the lightning protection ring of a wind power blade according to claim 6, wherein: The upper part of the second push plate (28) and the middle part of the first push plate (27) are at the same height; at the bottom end of the connecting plate (25), a second baffle (31) is fixedly connected, and the second baffle (31) is in contact with the inner end part of the first push plate (27).

8. A welding positioning tooling for lightning protection ring assembly of a wind power generation blade according to claim 5, characterized in that: The distance adjustment mechanism includes a scissors frame (32). The number of the middle cross parts of the scissors frame (32) is equal to the number of the positioning plates (19), and the axes of multiple middle cross parts of the scissors frame (32) are respectively fixedly connected with multiple positioning plates (19). Driving blocks (33) are rotatably connected to the left and right positions at the rear end of the scissors frame (32). A sliding block (34) is arranged between the two driving blocks (33). The sliding block (34) is slidably connected to the bottom plate (1), and a bidirectional threaded rod (35) is arranged on the sliding block (34). The bidirectional threaded rod (35) is rotatably connected to the sliding block (34), and the left and right sides of the bidirectional threaded rod (35) are respectively threadedly connected to the driving blocks (33) on the left and right sides. The bidirectional threaded rod (35) has self-locking property. The sliding direction of the sliding block (34) is in the front-back direction.

9. The welding positioning tooling for assembling the lightning protection ring of a wind power generation blade according to claim 5, characterized in that: The moving mechanism includes a second spring (36). The second spring (36) is sleeved on the rear side part of the support rod (6). One end of the second spring (36) is fixedly connected to the positioning frame (7), and the other end is fixedly connected to the fixed frame (4).

10. The welding positioning tooling for assembling the lightning protection ring of a wind power blade according to claim 5, characterized in that: The second driving mechanism includes a winding box (40) fixedly connected to the rear side position of the bottom plate (1). A chain (41) is elastically wound in the winding box (40). The front end part of the chain (41) is fixedly connected to a connecting rod (42). The connecting rod (42) is fixedly connected to the frontmost first baffle (20). The chain (41) and the sprocket (37) are at the same height.

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