Spot welding positioning device for wind power tower

Abstract

A spot welding positioning device for a wind power tower belongs to the technical field of spot welding positioning and comprises a base, self-adjusting roller carriers are fixedly mounted at the two ends of the top of the base, a plurality of sliding grooves are formed in the top of the base, and moving frames are slidably connected to the inner walls of the sliding grooves. A mounting frame is fixedly connected between the two corresponding moving frames, and a locking mechanism is arranged on the inner wall of the mounting frame; the multiple abutting rods are driven to contract in the center direction of the connecting ring, the ends of the abutting rods are all extruded on the outer wall of the wind power tower barrel, accurate axis positioning is achieved, meanwhile, the other locking mechanism drives the adjacent tower barrels to synchronously move to the corresponding axes, and it is ensured that the axes are accurately aligned when the tower barrels with different diameters make contact; the design that the connecting rod slides along the inclined groove can automatically contract in the radial direction and continuously apply pre-tightening force, various diameter specifications can be adapted without manual adjustment, the operation process is remarkably simplified, and the spot welding positioning efficiency and reliability of the wind power tower barrel are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spot welding positioning, and in particular to a wind power tower spot welding positioning device. Background Art

[0002] The wind turbine tower is the tower of wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the set. The production process of wind turbine tower is generally as follows: CNC cutting machine cuts the material, thick plates need to be beveled, plate rolling machine rolls the plate into shape, spot welds, positions it, and after confirmation, the internal and external longitudinal seams are welded. After the roundness is checked, if there is any problem, it is rounded again. After the single section of the cylinder is welded, the wind turbine tower is driven by the roller frame and spot welded. The internal and external circumferential seams are welded, and the straightness and other tolerances are checked before welding the flange. The weld is non-destructive testing and flatness inspection are carried out. After sandblasting and painting, the internal parts are installed and the finished product is inspected, and then it is transported to the installation site. When spot welding the wind turbine tower, a positioning device is required to ensure that the wind turbine tower is in the correct processing area.

[0003] Since wind turbine towers are divided into multiple sections with different diameters, each time adjacent wind turbine towers are positioned, the range of motion of the clamp needs to be adjusted according to the diameter of the wind turbine tower, and the height of the clamp also needs to be adjusted to ensure that the axes of the two wind turbine towers are consistent. Only after the adjustment is completed can spot welding be performed. Since the wind turbine tower is tapered as a whole, the diameters of all adjacent wind turbine towers are different, which greatly increases the difficulty and workload of the positioning work. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem raised in the background technology and to propose a wind power tower spot welding positioning device.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a wind power tower spot welding positioning device, comprising a base, self-adjusting roller frames are fixedly installed at both ends of the top of the base, a plurality of slide grooves are opened on the top of the base, and the inner walls of the plurality of slide grooves are slidably connected to a movable frame, and a mounting frame is fixedly connected between two corresponding movable frames, and a locking mechanism is provided on the inner wall of the mounting frame;

[0006] The locking mechanism includes a connecting ring, which directly drives the wind turbine tower to move when the wind turbine tower needs to be positioned and installed. During the movement, it can automatically adapt to wind turbine towers of different diameters and lock and clamp them;

[0007] A locking mechanism is provided between opposite sides of the two movable frames to automatically lock the distance between the two connecting rings when positioning and installing the wind turbine tower, thereby ensuring that the gap between the wind turbine towers does not change during the welding process.

[0008] Furthermore, the side wall of the connecting ring is provided with a plurality of oblique grooves, the inner wall of the connecting ring is provided with a plurality of through openings, the interior of the oblique grooves is communicated with the interior of the through openings, the side wall of the mounting frame is fixedly connected with a plurality of first connecting frames, and the side wall of the first connecting frame is provided with a limiting groove, the inner wall of the limiting groove is slidably connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a push rod, the two ends of one of the connecting rods are fixedly connected to the second connecting frame, the inner walls of the two second connecting frames are fixedly connected to the first spring, the bottoms of the two first springs are jointly fixedly connected to a U-shaped frame, the top of the base is fixedly connected to a trapezoidal block, and the top of the trapezoidal block is provided with an extrusion groove.

[0009] Furthermore, the outer wall of the connecting ring is slidably connected to the inner wall of the mounting frame, the outer wall of the connecting rod is slidably connected to the inner wall of the corresponding inclined groove, the support rod is slidably connected to the inner wall of the corresponding through-hole, and the outer wall of the U-shaped frame corresponds to the inner wall of the extrusion groove.

[0010] Furthermore, the locking mechanism includes a first fixed rod and a first fixed rod, and the interior of the first fixed rod is provided with an installation groove, the inner wall of the installation groove is penetrated by two movable blocks that are slidably connected, and a second spring is fixedly connected between the opposite sides of the two movable blocks, the inner wall of the installation groove is fixedly installed with an electric push rod, and the output shaft of the electric push rod is fixedly connected to the extrusion frame, the side wall of the second fixed rod is penetrated by a card slot, and the inner wall of the card slot is provided with a groove.

[0011] Furthermore, the ends of the first fixing rod and the second fixing rod that are away from each other are fixedly connected to the corresponding side walls of the movable frame, the outer wall of the first fixing rod corresponds to the inner wall of the card slot, and the outer wall of the movable block is engaged with the inner wall of the groove.

[0012] Furthermore, a limiting mechanism is provided on the top of the trapezoidal block, and the limiting mechanism includes a fixed block, and the top of the fixed block is fixedly connected to a second clamping plate, and the side wall of the second connecting frame close to the second clamping plate is fixedly connected to the first clamping plate.

[0013] Furthermore, the bottom of the fixing block is fixedly connected to the top of the trapezoidal block, and the side wall of the first clamping plate is clamped with the side wall of the second clamping plate.

[0014] Furthermore, a motor is fixedly mounted on the top of the base, and the output shaft of the motor is fixedly connected to a bidirectional screw, and the end of the bidirectional screw away from the motor is rotatably connected to a connecting block, and the bottom of the connecting block is fixedly connected to the top of the base.

[0015] Compared with the prior art, the above solution has the following beneficial effects:

[0016] 1. When the connecting rod moves, it will drive the supporting rod to move synchronously, thereby driving several supporting rods to shrink toward the center of the connecting ring. The ends of several supporting rods are squeezed on the outer wall of the wind turbine tower to achieve the function of clamping and positioning, thereby ensuring that the wind turbine tower inside the connecting ring is at the axial position of the connecting ring. At the same time, another set of locking mechanisms will drive the other wind turbine tower to also move the position of the corresponding connecting ring axis. After that, when the two wind turbine towers are in contact with each other, the axes of the two wind turbine towers with different diameters are positioned on the same horizontal line. By controlling several connecting rods to slide along the inner wall of the inclined groove, radial contraction is achieved and continuous pre-tightening force is provided, thereby automatically adapting to wind turbine towers of different diameters, effectively improving work efficiency.

[0017] At the same time, the push rod will stop sliding on the inner wall of the opening. Then, when the U-shaped frame slides along the inner wall of the extrusion groove, the upward extrusion force generated by the U-shaped frame will compress the first spring, thereby ensuring that several push rods can always maintain a clamping and positioning state for wind turbine towers of different diameters.

[0018] 2. In the process of the movable frame sliding along the inner wall of the slide groove, the corresponding first fixed rod and the second fixed rod will be driven to move in opposite directions, and then the outer wall inclined surfaces of the two movable blocks will contact the inner wall of the card slot. After that, when the displacement of the movable frame is completed, the two wind turbine towers will contact each other, thereby completing the positioning of the two wind turbine towers. Then, the elastic force generated by the compression of the second spring will drive the two movable blocks to slide away from each other, and then the movable blocks will slide to the inner wall position of the groove, so that the first fixed rod and the second fixed rod are clamped together. By locking the distance between the two movable frames and the connecting ring, the tower is prevented from being displaced due to vibration or thermal deformation during welding, thereby ensuring the quality of spot welding.

[0019] 3. During the sliding process of the U-shaped frame along the inner wall of the extrusion groove, the second connecting frame toward the side of the second clamping plate will drive the first clamping plate to move synchronously. After that, when the two connecting rings drive the wind turbine tower to move, the side wall of the first clamping plate will be clamped on the side wall of the fixed block. The height of the first clamping plate will be limited by the fixed block, and the position of the connecting rod and the support rod will be limited at the same time. Through the dual effects of height limitation and horizontal constraint, the stability of the wind turbine tower clamped by the support rod is further ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention;

[0021] Figure 2 A schematic diagram of the local structure proposed by the present invention;

[0022] Figure 3This is a schematic diagram of the internal structure of the connecting ring proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the structural connection between the support rod and the U-shaped frame proposed in the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the first fixing rod proposed in the present invention;

[0025] Figure 6 This is a schematic diagram of the structural transmission of the first clamping plate and the second clamping plate proposed in the present invention.

[0026] The markings in the accompanying drawings are: 1. Base; 2. Self-adjusting roller frame; 3. Slide; 4. Mobile frame; 5. Mounting frame; 6. Locking mechanism; 7. Locking mechanism; 8. Limiting mechanism; 9. Motor; 10. Bidirectional screw; 11. Connecting block; 601. Connecting ring; 602. Inclined groove; 603. Through port; 604. First connecting frame; 605. Limiting groove; 606. Connecting rod; 607. Abutment; 608. Second Connecting frame; 609, first spring; 610, U-shaped frame; 611, trapezoidal block; 612, extrusion groove; 701, first fixing rod; 702, second fixing rod; 703, mounting groove; 704, movable block; 705, second spring; 706, electric push rod; 707, extrusion frame; 708, slot; 709, groove; 801, fixing block; 802, first clamping plate; 803, second clamping plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," and "bottom" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the present invention. They are not intended to indicate or imply that the positions or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used solely to distinguish an entity or operation from another entity or operation and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0029] For example 1, please refer to Figure 1-Figure 4, a wind power tower spot welding positioning device, including a base 1, self-adjusting roller frames 2 are fixedly installed at both ends of the top of the base 1, a plurality of slide grooves 3 are opened on the top of the base 1, and the inner walls of the plurality of slide grooves 3 are slidably connected with a mobile frame 4, and a mounting frame 5 is fixedly connected between the corresponding two mobile frames 4. The inner wall of the mounting frame 5 is provided with a locking mechanism 6, and the locking mechanism 6 includes a connecting ring 601, which can directly drive the wind power tower to move when the wind power tower needs to be positioned and installed, and can automatically adapt to wind power towers of different diameters and lock and clamp them during the movement. A motor 9 is fixedly installed on the top of the base 1, and the output shaft of the motor 9 is fixedly connected to a bidirectional screw 10. The end of the bidirectional screw 10 away from the motor 9 is rotatably connected to a connecting block 11, and the bottom of the connecting block 11 is fixedly connected to the top of the base 1;

[0030] Furthermore, a plurality of oblique grooves 602 are formed through the side wall of the connecting ring 601, and a plurality of through openings 603 are formed on the inner wall of the connecting ring 601. The interior of the oblique grooves 602 is connected to the interior of the through openings 603. A plurality of first connecting frames 604 are fixedly connected to the side wall of the mounting frame 5, and a limiting groove 605 is formed through the side wall of the first connecting frame 604. A connecting rod 606 is slidably connected to the inner wall of the limiting groove 605. The outer wall of the connecting rod 606 is fixedly connected to a rod 607. Both ends of one of the connecting rods 606 are fixedly connected to a second connecting frame 608. The inner walls of the two second connecting frames 608 are fixedly connected to the first springs 609, and the bottoms of the two first springs 609 are commonly fixedly connected to the U-shaped frame 610. The top of the base 1 is fixedly connected to the trapezoidal block 611, and the top of the trapezoidal block 611 is provided with an extrusion groove 612. The outer wall of the connecting ring 601 is slidably connected to the inner wall of the mounting frame 5, the outer wall of the connecting rod 606 is slidably connected to the inner wall of the corresponding inclined groove 602, and the support rod 607 is slidably connected to the inner wall of the corresponding through-port 603. The outer wall of the U-shaped frame 610 corresponds to the inner wall of the extrusion groove 612.

[0031] More specifically, when spot welding is required between adjacent wind turbine towers, the wind turbine towers need to be clamped and positioned first to ensure the stability and quality of spot welding. The two wind turbine towers that need to be spot welded are driven by a hoist through the corresponding connecting ring 601 and then placed on the roller surface of the corresponding self-adjusting roller frame 2. The self-adjusting roller frame 2 can automatically adjust the height to adapt to the diameter of the wind turbine tower. The driving motor 9 is then controlled to output, and then the output shaft of the motor 9 drives the bidirectional screw 10 to rotate. Since the thread on the surface of the bidirectional screw 10 is a bidirectional design, it will drive the movable frames 4 on both sides to slide along the inner wall of the corresponding slide groove 3 in the direction of approaching each other. Then the movable frame 4 will drive the locking mechanism 6 to move synchronously through the mounting frame 5, so that the connecting ring 601 drives the wind turbine tower inside it to move and displace, and at the same time, the outer wall of the wind turbine tower will slide along the roller surface of the self-adjusting roller frame 2.

[0032] When the connecting ring 601 moves to the specified position, the outer wall of the U-shaped frame 610 will contact the trapezoidal block 611, and then enter the inside of the extrusion groove 612 and slide along its inner wall. Due to the inconsistent height of the inner wall of the extrusion groove 612, the U-shaped frame 610 will be squeezed during the sliding process, and then the U-shaped frame 610 will move upward, and at the same time, it will drive the first spring 609 and the connecting rod 606 to move upward synchronously. During this process, the connecting rod 606 will slide along the inner wall of the inclined groove 602, and at the same time, the inner wall of the limiting groove 605 will limit the two ends of the connecting rod 606, so that the connecting ring 601 will rotate. When the connecting ring 601 rotates, it will drive other connecting rods 606 to move synchronously through the inclined groove 602. Since several connecting rods 606 move synchronously, their moving directions and paths are consistent, thereby achieving Now, several connecting rods 606 move toward the center of the connecting ring 601. When the connecting rod 606 moves, it will drive the supporting rod 607 to move synchronously, thereby driving the several supporting rods 607 to shrink toward the center direction of the connecting ring 601. The ends of the several supporting rods 607 are squeezed on the outer wall of the wind turbine tower to achieve the function of clamping and positioning, thereby ensuring that the wind turbine tower located inside the connecting ring 601 is at the position of the axis of the connecting ring 601. At the same time, another set of locking mechanisms 6 will drive the other wind turbine tower to also shift the position of the corresponding axis of the connecting ring 601. After that, when the two wind turbine towers are in contact with each other, the axis centers of the two wind turbine towers with different diameters are positioned on the same horizontal line. By controlling the several connecting rods 606 to slide along the inner wall of the inclined groove 602, radial contraction is achieved, thereby automatically adapting to wind turbine towers with different diameters, effectively improving work efficiency.

[0033] When the ends of the plurality of supporting rods 607 contact the outer wall of the wind turbine tower and achieve the clamping effect, the supporting rods 607 will stop sliding on the inner wall of the opening 603. After that, when the U-shaped frame 610 slides along the inner wall of the extrusion groove 612, the upward extrusion force generated by the U-shaped frame 610 will compress the first spring 609, thereby ensuring that the plurality of supporting rods 607 can always maintain a clamping and positioning state for wind turbine towers of different diameters.

[0034] For example 2, please refer to Figure 1-Figure 5 Based on the first embodiment, in this embodiment, a locking mechanism 7 is provided between the opposite sides of the two movable frames 4 to automatically lock the distance between the two connecting rings 601 when the wind turbine tower is positioned and installed, thereby ensuring that the gap between the wind turbine towers does not change during the welding process;

[0035] Furthermore, the locking mechanism 7 includes a first fixed rod 701 and a first fixed rod 701, and an installation groove 703 is provided inside the first fixed rod 701, and the inner wall of the installation groove 703 is slidably connected with two movable blocks 704, and a second spring 705 is fixedly connected between the opposite sides of the two movable blocks 704, and an electric push rod 706 is fixedly installed on the inner wall of the installation groove 703, and the output shaft of the electric push rod 706 is fixedly connected to the extrusion frame 707, and a card slot 708 is provided on the side wall of the second fixed rod 702, and a groove 709 is provided on the inner wall of the card slot 708. The ends of the first fixed rod 701 and the second fixed rod 702 away from each other are fixedly connected to the side wall of the corresponding movable frame 4, the outer wall of the first fixed rod 701 corresponds to the inner wall of the card slot 708, and the outer wall of the movable block 704 is engaged with the inner wall of the groove 709.

[0036] More specifically, when the movable frame 4 slides along the inner wall of the slide groove 3, the corresponding first fixing rod 701 and the second fixing rod 702 will be driven to move in opposite directions, and then the outer wall of the first fixing rod 701 will contact the second fixing rod 702, and then the outer wall of the first fixing rod 701 will slide along the inner wall of the card slot 708, and then the outer wall inclined surfaces of the two movable blocks 704 will contact the inner wall of the card slot 708, and then the two movable blocks 704 will be squeezed and then slide toward the inside of the installation groove 703, and at the same time the second spring 705 will be compressed. Then, when the displacement of the movable frame 4 is completed, the two wind turbine towers will be connected. When the first and second fixing rods 701 and 702 are connected, the first fixing rod 701 and the second fixing rod 702 are connected together. When the first and second fixing rods 701 and 702 are connected, the gap between the first and second fixing rods 701 and 702 is prevented from changing during the spot welding operation, thereby preventing the gap between the first and second fixing rods 701 and 702 from changing during the spot welding operation, thereby preventing the gap between the first and second fixing rods 701 and the second fixing rod ...

[0037] After the spot welding work is completed, the electric push rod 706 is driven so that its output shaft drives the extrusion frame 707 to slide along the inner wall of the installation groove 703. Then the inclined surface of the electric push rod 706 will contact the outer walls of the two movable blocks 704 and squeeze them. After that, the two squeezed movable blocks 704 will move towards each other. During this process, the outer wall of the movable block 704 will separate from the inner wall of the groove 709, thereby releasing the clamping of the first fixed rod 701 and the second fixed rod 702.

[0038] For example three, please refer to Figures 1-6 On the basis of the second embodiment, in this embodiment, a limiting mechanism 8 is provided on the top of the trapezoidal block 611. The limiting mechanism 8 includes a fixed block 801, and a second clamping plate 803 is fixedly connected to the top of the fixed block 801. The side wall of the second connecting frame 608 close to the second clamping plate 803 is fixedly connected to the first clamping plate 802.

[0039] Furthermore, the bottom of the fixing block 801 is fixedly connected to the top of the trapezoidal block 611 , and the side wall of the first clamping plate 802 is engaged with the side wall of the second clamping plate 803 .

[0040] More specifically, during the sliding of the U-shaped frame 610 along the inner wall of the extrusion groove 612, the second connecting frame 608 toward the side of the second clamping plate 803 will drive the first clamping plate 802 to move synchronously. After that, when the two connecting rings 601 drive the wind turbine tower to move, the side wall of the first clamping plate 802 will be clamped on the side wall of the fixed block 801. The height of the first clamping plate 802 will be limited by the fixed block 801, and the position of the connecting rod 606 and the support rod 607 will be limited at the same time, thereby ensuring the stability of the support rod 607 in clamping the wind turbine tower.

[0041] The working principle of the present invention is as follows: when spot welding is required between adjacent wind turbine towers, the wind turbine towers need to be clamped and positioned first to ensure the stability and quality of spot welding, and the two wind turbine towers that need to be spot welded are driven by a hoist through the interior of the corresponding connecting ring 601, and then placed on the roller surface of the corresponding self-adjusting roller frame 2. The self-adjusting roller frame 2 can automatically adjust the height to adapt to the diameter of the wind turbine tower, and then the driving motor 9 is controlled to output, and then the output shaft of the motor 9 will drive the bidirectional screw 10 to rotate. Since the thread on the surface of the bidirectional screw 10 is a bidirectional design, it will drive the movable frames 4 on both sides to slide along the inner wall of the corresponding slide groove 3 in the direction of approaching each other, and then the movable frame 4 will drive the locking mechanism 6 to move synchronously through the mounting frame 5, so that the connecting ring 601 drives the wind turbine tower inside it to move and displace, and at the same time, the outer wall of the wind turbine tower will slide along the roller surface of the self-adjusting roller frame 2;

[0042] When the connecting ring 601 moves to the specified position, the outer wall of the U-shaped frame 610 will contact the trapezoidal block 611, and then enter the inside of the extrusion groove 612 and slide along its inner wall. Due to the inconsistent height of the inner wall of the extrusion groove 612, the U-shaped frame 610 will be squeezed during the sliding process, and then the U-shaped frame 610 will move upward, and at the same time, it will drive the first spring 609 and the connecting rod 606 to move upward synchronously. During this process, the connecting rod 606 will slide along the inner wall of the inclined groove 602, and at the same time, the inner wall of the limiting groove 605 will limit the two ends of the connecting rod 606, so that the connecting ring 601 will rotate. When the connecting ring 601 rotates, it will drive other connecting rods 606 to move synchronously through the inclined groove 602. Since several connecting rods 606 move synchronously, their moving direction and path are consistent. The multiple connecting rods 606 are thereby moved toward the center of the connecting ring 601. When the connecting rods 606 move, the push rods 607 are driven to move synchronously, thereby driving the multiple push rods 607 to contract toward the center of the connecting ring 601. The ends of the multiple push rods 607 are squeezed against the outer wall of the wind turbine tower to achieve the function of clamping and positioning, thereby ensuring that the wind turbine tower located inside the connecting ring 601 is at the position of the axis of the connecting ring 601. At the same time, another set of locking mechanisms 6 will drive the other wind turbine tower to also shift the position of the corresponding axis of the connecting ring 601. Afterwards, when the two wind turbine towers are in contact with each other, the axis centers of the two wind turbine towers with different diameters are positioned on the same horizontal line. By controlling the multiple connecting rods 606 to slide along the inner wall of the inclined slot 602, radial contraction is achieved, thereby automatically adapting to wind turbine towers with different diameters.

[0043] When the movable frame 4 slides along the inner wall of the slide groove 3, it will drive the corresponding first fixed rod 701 and the second fixed rod 702 to move in opposite directions. Then the outer wall of the first fixed rod 701 will contact the second fixed rod 702, and then the outer wall of the first fixed rod 701 will slide along the inner wall of the card slot 708. Then the outer wall inclined surfaces of the two movable blocks 704 will contact the inner wall of the card slot 708, and then the two movable blocks 704 will be squeezed, and then they will slide toward the inside of the installation groove 703. At the same time, the second spring 705 will be compressed. Then, when the displacement of the movable frame 4 is completed, the two wind turbine towers will contact each other, thereby completing the positioning of the two wind turbine towers.

[0044] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0045] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A wind power tower spot welding positioning device, comprising a base (1), characterized in that: Self-adjusting roller frames (2) are fixedly mounted on both ends of the top of the base (1), a plurality of slide grooves (3) are provided on the top of the base (1), a plurality of movable frames (4) are slidably connected to the inner walls of the plurality of slide grooves (3), a mounting frame (5) is fixedly connected between two corresponding movable frames (4), and a locking mechanism (6) is provided on the inner wall of the mounting frame (5); The locking mechanism (6) comprises a connecting ring (601) for directly driving the wind turbine tower to move when the wind turbine tower is positioned and installed, and adaptively adapting to wind turbine towers of different diameters and locking and clamping them during the movement; A locking mechanism (7) is provided between opposite sides of the two movable frames (4) to automatically lock the distance between the two connecting rings (601) when positioning and installing the wind turbine tower, thereby ensuring that the gap between the wind turbine towers does not change during the welding process.

2. A wind power tower spot welding positioning device according to claim 1, characterized in that: The side wall of the connecting ring (601) is provided with a plurality of inclined grooves (602), the inner wall of the connecting ring (601) is provided with a plurality of through openings (603), the interior of the inclined grooves (602) is connected to the interior of the through openings (603), the side wall of the installation frame (5) is fixedly connected with a plurality of first connecting frames (604), and the side wall of the first connecting frame (604) is provided with a limiting groove (605), the inner wall of the limiting groove (605) is provided with a connecting rod (606) which is slidably connected thereto, The outer wall of the connecting rod (606) is fixedly connected to a supporting rod (607), both ends of one of the connecting rods (606) are fixedly connected to a second connecting frame (608), the inner walls of the two second connecting frames (608) are fixedly connected to a first spring (609), the bottoms of the two first springs (609) are fixedly connected to a U-shaped frame (610), the top of the base (1) is fixedly connected to a trapezoidal block (611), and the top of the trapezoidal block (611) is provided with an extrusion groove (612).

3. A wind power tower spot welding positioning device according to claim 2, characterized in that: The outer wall of the connecting ring (601) is slidably connected to the inner wall of the mounting frame (5), the outer wall of the connecting rod (606) is slidably connected to the inner wall of the corresponding inclined groove (602), the support rod (607) is slidably connected to the inner wall of the corresponding through-port (603), and the outer wall of the U-shaped frame (610) corresponds to the inner wall of the extrusion groove (612).

4. A wind power tower spot welding positioning device according to claim 3, characterized in that: The locking mechanism (7) comprises a first fixing rod (701) and a second fixing rod (701), and a mounting groove (703) is provided inside the first fixing rod (701), two movable blocks (704) are slidably connected to the inner wall of the mounting groove (703), a second spring (705) is fixedly connected between opposite sides of the two movable blocks (704), an electric push rod (706) is fixedly installed on the inner wall of the mounting groove (703), and the output shaft of the electric push rod (706) is fixedly connected to the extrusion frame (707), a clamping groove (708) is provided on the side wall of the second fixing rod (702), and a groove (709) is provided on the inner wall of the clamping groove (708).

5. A wind power tower spot welding positioning device according to claim 4, characterized in that: The ends of the first fixing rod (701) and the second fixing rod (702) that are away from each other are fixedly connected to the corresponding side walls of the movable frame (4), the outer wall of the first fixing rod (701) corresponds to the inner wall of the slot (708), and the outer wall of the movable block (704) is engaged with the inner wall of the groove (709).

6. A wind power tower spot welding positioning device according to claim 5, characterized in that: A limiting mechanism (8) is provided on the top of the trapezoidal block (611), the limiting mechanism (8) comprising a fixed block (801), the top of the fixed block (801) being fixedly connected to a second clamping plate (803), and a side wall of the second connecting frame (608) close to a side of the second clamping plate (803) being fixedly connected to a first clamping plate (802).

7. A wind power tower spot welding positioning device according to claim 6, characterized in that: The bottom of the fixed block (801) is fixedly connected to the top of the trapezoidal block (611), and the side wall of the first clamping plate (802) is clamped with the side wall of the second clamping plate (803).

8. A wind power tower spot welding positioning device according to claim 7, characterized in that: A motor (9) is fixedly mounted on the top of the base (1), and the output shaft of the motor (9) is fixedly connected to a bidirectional screw (10), and one end of the bidirectional screw (10) away from the motor (9) is rotatably connected to a connecting block (11), and the bottom of the connecting block (11) is fixedly connected to the top of the base (1).

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