A kind of processing wind power blade root milling surface clamping device

Abstract

The utility model relates to the technical field of wind power blade, propose a kind of processing wind power blade blade root milling surface clamping device, including connecting frame, still including moving plate, auxiliary rod, fixed frame, fixed stand, fixed tube, fixed pin, auxiliary plate, auxiliary pipe, moving rod, plug-in pin, connecting block and first fixed plate, moving plate is slidably connected in connecting frame, the inside of moving plate is provided with auxiliary rod, fixed frame is sleeved in the outer surface of auxiliary rod, the inside of fixed frame slidably connects with fixed stand, the inner end of auxiliary rod is installed in the outer surface of fixed stand, the outer surface of fixed stand is sleeved with fixed tube, fixed pin is passed in the outer surface of fixed tube, and the end of fixed pin passed into fixed tube abuts against fixed stand, and auxiliary plate is installed in the outer surface of fixed tube. By the above technical scheme, to solve the problem that the fixing end of clamp is prone to loosening after the device generates vibration during the machining of workpiece in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade technology, specifically to a clamping device for milling the root surface of wind turbine blades. Background Technology

[0002] A wind turbine is a power generation device that converts wind energy into mechanical energy and then into electrical energy through blades. The blades are a key component of the wind turbine, needing to withstand wind scouring from different directions, thus experiencing very high alternating stress. This places extremely high demands on the strength and fatigue life of the blade materials and connecting components. The blades are connected to the turbine hub pitch bearing via flanges, secured by multiple high-strength bolts. To ensure a reliable connection between the blades and the turbine hub pitch bearing, the two connecting flange surfaces must have excellent contact, while ensuring consistent torque of all fastening bolts. Therefore, a high degree of flatness is required for the flange surface at the blade root, necessitating the use of clamping devices for fixation during blade root machining.

[0003] Existing clamping devices place the workpiece inside the fixture and adjust the clamping mechanism inward to fix the workpiece on the fixture. However, vibrations are easily generated during the workpiece processing, causing the fixture to loosen.

[0004] The aforementioned clamping device is prone to vibration during workpiece processing, which can cause the fixed end of the clamp to loosen, thus reducing the device's effectiveness. Utility Model Content

[0005] This utility model proposes a clamping device for milling the root surface of wind turbine blades, which solves the problem that the fixed end of the clamp is easily loosened when vibration occurs during the processing of workpieces in the prior art.

[0006] The technical solution of this utility model is as follows: A clamping device for milling the root surface of wind turbine blades, comprising a connecting frame, and further comprising:

[0007] The movable plate is slidably connected within the connecting frame. An auxiliary rod is provided inside the movable plate. The fixed frame is sleeved on the outer surface of the auxiliary rod. A fixed bracket is slidably connected inside the fixed frame. The inner end of the auxiliary rod is mounted on the outer surface of the fixed bracket. A fixed tube is sleeved on the outer surface of the fixed bracket. A fixed pin passes through the outer surface of the fixed tube. One end of the fixed pin, which passes into the fixed tube, abuts against the fixed bracket. The auxiliary plate is mounted on the outer surface of the fixed tube. The auxiliary tube is mounted on the outer side of the fixed frame. A movable rod passes through the inside of the auxiliary tube. The outer surface of the movable rod passes through the fixed frame. A connecting pin passes through the outer surface of the auxiliary tube. One end of the connecting pin, which passes into the auxiliary tube, abuts against the movable rod. The connecting block is slidably connected within the auxiliary plate. The inner end of the movable rod is mounted inside the connecting block. A first fixed plate is mounted on the inner side of the auxiliary plate. The outer side of the fixed frame is mounted on the inner side of the movable plate.

[0008] As a preferred embodiment of the clamping device for milling the root surface of wind turbine blades according to the present invention, in order to fix the workpiece, an installation frame is installed on the inner side of the fixing frame, and a moving block is slidably connected inside the installation frame.

[0009] As a preferred embodiment of the clamping device for milling the root surface of wind turbine blades according to the present invention, in order to prevent the moving block from loosening after it is fixed, a connecting pin is provided through the internal thread of the moving block, and the connecting pin is slidably connected to the mounting frame.

[0010] As a preferred embodiment of the clamping device for milling the root surface of wind turbine blades described in this utility model, in order to facilitate secondary fixation of the workpiece, a second fixing plate is installed on the inner side of the moving block, and an installation pin passes through the outer side of the second fixing plate.

[0011] As a preferred embodiment of the clamping device for milling the root surface of wind turbine blades according to the present invention, in order to prevent the second fixing plate from loosening during use, one end of the mounting pin that passes through the second fixing plate is threaded through the inside of the first fixing plate.

[0012] As a preferred embodiment of the clamping device for milling the root surface of wind turbine blades according to the present invention, in order to facilitate the movement of the first fixing plate, the first fixing plate is slidably connected to the second fixing plate, and a contact pad is installed on the inner side of the first fixing plate.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] In this invention, the connecting block is pushed inward by the moving rod, so that the first fixed plate moves inward and contacts the workpiece. Compared with the direct processing of the prior art, this device can reduce the impact of workpiece vibration on the first fixed plate, reduce the number of times the operator re-tightens the first fixed plate, and improve the effectiveness of the device.

[0015] In this invention, by manipulating the moving block to move inward along the mounting frame, the moving block moves inward and drives the second fixing plate to move inward to fix the workpiece. Compared with the direct fixing of the prior art, this device can fix the workpiece on both sides twice, which can prevent the workpiece from becoming loose during the operator's processing. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the connecting ring and auxiliary tube mating structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the cooperation structure between the fixed frame and the mounting frame in this utility model;

[0020] Figure 4 This is a vertical sectional view of the structure of the fixing bracket and fixing frame in this utility model.

[0021] In the diagram: 1. Connecting frame; 2. Moving plate; 3. Auxiliary rod; 4. Fixed frame; 5. Fixed bracket; 6. Fixed pipe; 7. Fixed pin; 8. Auxiliary plate; 9. Auxiliary pipe; 10. Moving rod; 11. Insert pin; 12. Connecting block; 13. First fixed plate; 14. Mounting frame; 15. Moving block; 16. Connecting pin; 17. Second fixed plate; 18. Mounting pin; 19. Auxiliary pin; 20. Bolt; 21. Mounting block; 22. Support plate; 23. Threaded rod; 24. Connecting ring; 25. Auxiliary pipe; 26. Operating rod; 27. Moving pin; 28. Auxiliary frame; 29. ​​Support bracket. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figures 1-4As shown, this embodiment proposes a clamping device for milling the root surface of wind turbine blades, including a connecting frame 1, a moving plate 2, an auxiliary rod 3, a fixed frame 4, a fixed bracket 5, a fixed pipe 6, a fixed pin 7, an auxiliary plate 8, an auxiliary pipe 9, a moving rod 10, a plug pin 11, a connecting block 12, and a first fixed plate 13.

[0024] like Figure 3 and Figure 4 As shown, the movable plate 2 is slidably connected to the connecting frame 1. An auxiliary rod 3 is installed inside the movable plate 2. The fixed frame 4 is sleeved on the outer surface of the auxiliary rod 3. A fixed bracket 5 is slidably connected inside the fixed frame 4. The fixed bracket 5 is an H-shaped bracket. The dimensions of the fixed tube 6, auxiliary plate 8, and first fixed plate 13 are all smaller than the dimensions of the mounting frame 14. Therefore, the first fixed plate 13 can extend along the inside of the second fixed plate 17. The inner end of the auxiliary rod 3 is installed on the outer surface of the fixed bracket 5. The fixed tube 6 is sleeved on the outer surface of the fixed bracket 5. A fixing pin 7 passes through the outer surface of the fixed tube 6. One end of the fixing pin 7, which penetrates into the fixed tube 6, abuts against the fixed bracket 5. The auxiliary plate 8 is installed on the outer surface of the fixed tube 6. The outward movement of the first fixed plate 13 causes the auxiliary plate 8 to move outward, and the outward movement of the auxiliary plate 8 causes the connecting block 12 to move outward. When the connecting block 12 moves outward, it drives the moving rod 10 to move outward. The auxiliary tube 9 is installed on the outer side of the fixed frame 4. The moving rod 10 passes through the inside of the auxiliary tube 9. The outer surface of the moving rod 10 passes through the fixed frame 4. The outer surface of the auxiliary tube 9 is provided with a plug pin 11. One end of the plug pin 11 that passes through the auxiliary tube 9 abuts against the moving rod 10. After the moving rod 10 moves properly, the plug pin 11 is manipulated to pass through the auxiliary tube 9 and abut against the moving rod 10. The connecting block 12 is slidably connected to the auxiliary plate 8. The size of the connecting block 12 is smaller than the size of the fixed frame 5. Therefore, when the fixed frame 5 moves inward, the connecting block 12 will not block the fixed frame 5. The inner end of the moving rod 10 is installed inside the connecting block 12. The inner side of the auxiliary plate 8 is equipped with the first fixed plate 13. The outer side of the fixed frame 4 is installed on the inner side of the moving plate 2.

[0025] like Figure 3As shown, a mounting frame 14 is installed on the inner side of the fixed frame 4. A movable block 15 is slidably connected inside the mounting frame 14. A connecting pin 16 is threaded through the inside of the movable block 15. The connecting pin 16 is slidably connected inside the mounting frame 14. A second fixed plate 17 is installed on the inner side of the movable block 15. An installation pin 18 passes through the outer side of the second fixed plate 17. The installation pin 18 is manipulated to pass through the second fixed plate 17 and insert into the first fixed plate 13. Then, the installation pin 18 is rotated clockwise to connect the first fixed plate 13 and the second fixed plate 17, so that the first fixed plate 13 can move outward or inward with the second fixed plate 17. One end of the installation pin 18 that passes through the second fixed plate 17 is threaded through the inside of the first fixed plate 13. The first fixed plate 13 is slidably connected inside the second fixed plate 17. A contact pad is installed on the inner side of the first fixed plate 13. The contact pad is a soft pad.

[0026] In this embodiment, as Figure 1 As shown, a bolt 20 is threaded through the outer surface of the connecting frame 1. One end of the bolt 20, inserted into the connecting frame 1, abuts against the movable plate 2. A mounting block 21 is installed on the lower surface of the connecting frame 1. A support plate 22 is slidably connected to the outer side of the mounting block 21. During use, the support plate 22 remains stationary, while the mounting block 21 moves inward or outward along the support plate 22. Figure 2 As shown, a threaded rod 23 is rotatably connected inside the support plate 22. The threaded rod 23 is threadedly connected to the mounting block 21. A connecting ring 24 is installed on the outer side of the support plate 22. The internal dimensions of the connecting ring 24 are adapted to the dimensions of the threaded rod 23, so the threaded rod 23 will not be unable to rotate due to the influence of the connecting ring 24 during rotation. An auxiliary tube 25 is installed on the outer side of the connecting ring 24. An operating rod 26 passes through the inside of the auxiliary tube 25. The inner end of the operating rod 26 is installed on the outer end of the threaded rod 23. A movable pin 27 passes through the outer surface of the auxiliary tube 25. One end of the movable pin 27, which passes into the auxiliary tube 25, abuts against the operating rod 26. Figure 1 As shown, an auxiliary frame 28 is installed on the lower surface of the support plate 22. A support frame 29 is slidably connected inside the auxiliary frame 28. The support frame 29 is slidably connected inside the support plate 22. An auxiliary pin 19 is provided on the outer side of the auxiliary frame 28. One end of the auxiliary pin 19 that passes into the auxiliary frame 28 abuts against the support frame 29.

[0027] In this embodiment, the movable plate 2 is moved upward along the connecting frame 1. The upward movement of the movable plate 2 causes the fixed frame 4 to move upward. The upward movement of the fixed frame 4 causes the mounting frame 14 to move upward. The upward movement of the mounting frame 14 passes through the movable block 15 and causes the second fixed plate 17 to move upward. After the movement is complete, the operating bolt 20 is inserted into the connecting frame 1, and then the bolt 20 is tightened clockwise.

[0028] Pull out the movable pin 27, operate the lever 26 to rotate and drive the threaded rod 23 to rotate. The rotation of the threaded rod 23 drives the mounting block 21 to move inward along the support plate 22. The inward movement of the mounting block 21 drives the connecting frame 1 to move inward. The inward movement of the connecting frame 1 drives the movable plate 2 to move inward. After the movement is complete, operate the movable pin 27 to pass through the auxiliary tube 25 and press against the lever 26.

[0029] Manipulate the mounting pin 18 to pass through the second fixing plate 17 and insert it into the first fixing plate 13 (at this time, the first fixing plate 13 is located inside the second fixing plate 17). Then tighten the mounting pin 18 clockwise to fix the first fixing plate 13 and the second fixing plate 17. Loosen the connecting pin 16 counterclockwise, pull out the fixing pin 7 and the insertion pin 11, and manipulate the moving rod 10 to move outward along the auxiliary tube 9. The outward movement of the moving rod 10 drives the connecting block 12 to move outward, the outward movement of the connecting block 12 drives the auxiliary plate 8 to move outward, the outward movement of the auxiliary plate 8 drives the fixing tube 6 to move outward along the fixing frame 5, the outward movement of the auxiliary plate 8 drives the first fixing plate 13 to move outward, the outward movement of the first fixing plate 13 drives the second fixing plate 17 to move outward, and the second fixing plate 17... The outward movement causes the moving block 15 to move outward along the mounting frame 14, moving the workpiece to the inside of the first fixed plate 13 and the second fixed plate 17. The moving rod 10 is moved inward along the auxiliary tube 9. The inward movement of the moving rod 10 causes the connecting block 12 to move inward. The inward movement of the connecting block 12 causes the auxiliary plate 8 to move inward. The inward movement of the auxiliary plate 8 causes the first fixed plate 13 to move inward. The inward movement of the first fixed plate 13 causes the second fixed plate 17 to move inward. The inward movement of the second fixed plate 17 causes the moving block 15 to move inward along the mounting frame 14, fixing the workpiece. The connecting pin 16 is tightened clockwise. The fixing pin 7 is manipulated to pass through the fixing tube 6 and press against the fixing frame 5. The insertion pin 11 is manipulated to pass through the auxiliary tube 9 and press against the moving rod 10.

[0030] Loosen the auxiliary pin 19 counterclockwise, manipulate the support frame 29 to move upward along the auxiliary frame 28, and the support frame 29 moves upward to contact the workpiece. Then tighten the auxiliary pin 19 clockwise and fix it. After that, process the workpiece.

[0031] When it is necessary to change the workpiece machining surface, loosen the connecting pin 16 and the mounting pin 18 counterclockwise, and remove the mounting pin 18. Manipulate the second fixing plate 17 to move outward along the mounting frame 14 via the moving block 15 to open it. Pull out the moving pin 27 and rotate the threaded rod 23 to make the mounting block 21 move outward along the support plate 22. At the same time, manipulate the auxiliary rod 3 to move inward along the moving plate 2 so that the workpiece remains in place. During this process, the auxiliary rod 3 moves inward relative to the fixing frame 4. The inward movement of the auxiliary rod 3 drives the fixing frame 5 to move inward. The inward movement of the fixing frame 5 drives the auxiliary plate 8 to move inward. The inward movement of the auxiliary plate 8 drives the first fixing plate 13 to move inward. After the fixing frame 5 is fully extended from the mounting frame 14, manipulate the auxiliary rod 3 to rotate the fixing frame 5. The rotation of the fixing frame 5 drives the fixing tube 6 to rotate. The rotation of the fixing tube 6 drives the auxiliary plate 8 to rotate. The rotation of the auxiliary plate 8 drives the first fixing plate 13 to rotate, flipping the workpiece. After flipping, repeat the above fixing action to make the second fixing plate 17 re-fix the workpiece, and then process the workpiece.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping device for milling the root surface of wind turbine blades, comprising a connecting frame (1), characterized in that, Also includes: A movable plate (2) is slidably connected to the connecting frame (1), and an auxiliary rod (3) is provided inside the movable plate (2). A fixed frame (4) is sleeved on the outer surface of the auxiliary rod (3). A fixed bracket (5) is slidably connected inside the fixed frame (4). The inner end of the auxiliary rod (3) is installed on the outer surface of the fixed bracket (5). A fixed tube (6) is sleeved on the outer surface of the fixed bracket (5). A fixed pin (7) is passed through the outer surface of the fixed tube (6). One end of the fixed pin (7) that passes through the fixed tube (6) abuts against the fixed bracket (5). An auxiliary plate (8) is installed on the outer surface of the fixed tube (6); An auxiliary tube (9) is installed on the outer side of the fixed frame (4). A movable rod (10) passes through the inside of the auxiliary tube (9). The outer surface of the movable rod (10) passes through the fixed frame (4). A pin (11) is inserted through the outer surface of the auxiliary tube (9). One end of the pin (11) that passes through the auxiliary tube (9) abuts against the movable rod (10). A connecting block (12) is slidably connected inside the auxiliary plate (8). The inner end of the moving rod (10) is installed inside the connecting block (12). A first fixing plate (13) is installed on the inner side of the auxiliary plate (8). The outer side of the fixing frame (4) is installed on the inner side of the moving plate (2).

2. The clamping device for milling the root surface of wind turbine blades according to claim 1, characterized in that, An installation frame (14) is installed on the inner side of the fixed frame (4), and a movable block (15) is slidably connected inside the installation frame (14).

3. The clamping device for milling the root surface of wind turbine blades according to claim 2, characterized in that, The internal thread of the movable block (15) is provided with a connecting pin (16), which is slidably connected to the mounting frame (14).

4. The clamping device for milling the root surface of wind turbine blades according to claim 3, characterized in that, The inner side of the movable block (15) is fitted with a second fixing plate (17), and the outer side of the second fixing plate (17) is fitted with a mounting pin (18).

5. The clamping device for milling the root surface of wind turbine blades according to claim 4, characterized in that, The mounting pin (18) is threaded through the second fixing plate (17) at one end and is inserted into the interior of the first fixing plate (13).

6. The clamping device for milling the root surface of wind turbine blades according to claim 5, characterized in that, The first fixing plate (13) is slidably connected to the second fixing plate (17), and a contact pad is installed on the inner side of the first fixing plate (13).

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