Positioning clamp for laser forging composite arc repair of offshore wind turbine blade
By designing a positioning fixture for laser forging composite arc repair of offshore wind turbine blades, and utilizing a clamping frame and automated components to achieve stable positioning and movement of the repair tool, the problem of unstable manual positioning was solved, thus improving repair quality and efficiency.
Patent Information
- Application Number
- CN202422995257.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In existing technologies, when manually using handheld repair tools to perform laser forging composite arc repair on offshore wind turbine blades, it is difficult to ensure stable positioning over a long period of time, resulting in poor repair quality.
A positioning fixture for laser forging composite arc repair of offshore wind turbine blades was designed, including components such as a clamping frame, a screw slide, a first rotating frame, a T-slot, a moving plate, and a spherical groove. The automatic positioning and movement of the repair tool are realized through a PLC controller, ensuring the stability of the repair tool during rotation and lateral movement.
This enables stable and continuous operation of the repair tool, improves repair quality, avoids the instability of manual positioning, and ensures the continuity and accuracy of the repair process.
Smart Images
Figure CN223642970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning fixture technology, and in particular to a positioning fixture for laser forging composite arc repair of offshore wind turbine blades. Background Technology
[0002] Laser forging and arc welding composite technology is a novel composite remanufacturing technology. It utilizes the shock wave pressure generated by a short-pulse laser to directly act on the high-temperature weld metal, thereby repairing defects such as porosity and slag inclusions in the weld. Simultaneously, it refines the weld pool grains, significantly improving the material's mechanical properties. The use of laser forging and arc welding composite technology for the remanufacturing and repair of H13 die steel has significant implications for industrial applications.
[0003] In existing technologies, when performing laser forging composite arc repair on wind turbine blades, manual hand-held repair tools are generally used for positioning and repair. However, human arm strength is limited, making it difficult to maintain a stable grip on the repair tools for extended periods, which in turn makes it difficult to guarantee repair quality and makes positioning repair operations inconvenient. Therefore, there is an urgent need for a positioning fixture for laser forging composite arc repair of offshore wind turbine blades to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a positioning fixture for laser forging composite arc repair of offshore wind turbine blades.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A positioning fixture for laser forging composite arc repair of offshore wind turbine blades includes a clamping frame. A screw slide is fixedly mounted on the outer circular wall of the clamping frame. A PLC controller is fixedly mounted on one end of the clamping frame. The fixture also includes a positioning component for positioning the repair tool. The positioning component is located on one side of the clamping frame. The positioning component includes a first rotating frame, which is located on one side of the clamping frame. T-shaped grooves are respectively formed on the outer circular wall of the first rotating frame and the outer circular wall of the clamping frame. Two lifting holes are formed on one side of the clamping frame.
[0007] As a further embodiment of this utility model, the positioning assembly further includes a movable plate movably fitted inside the T-shaped groove. A support frame plate is provided on the outer circular wall of the clamping frame. The support frame plate is fixedly installed with the movable plate. A fixing hole is opened on one side of the support frame plate. A connecting column is movably fitted inside the fixing hole. A gear is fixedly fitted on the outer circular wall of the connecting column. Several teeth are opened on one side of the T-shaped groove, and the teeth mesh with the gear. Two drive motors are fixedly installed on one side of the support frame plate. The drive motors are electrically connected to the PLC controller. One end of the drive shaft of the support frame plate is fixedly installed with the connecting column. A fixed platform is fixedly installed on one side of the movable plate. The fixed platform is fixedly installed with the screw slide. The drive motor of the screw slide is electrically connected to the PLC controller. Two spherical grooves are respectively opened on both sides of the movable plate. Steel balls are movably fitted on the inner circular wall of the spherical grooves.
[0008] As a further embodiment of this utility model, the clamping frame has limit holes on its inner top and bottom surfaces, a hydraulic cylinder is fixedly sleeved on the inner circular wall of the limit hole, a movable frame is fixedly installed on the bottom surface of the telescopic shaft of the hydraulic cylinder, and a plurality of second rotating frames are provided inside the clamping frame, the movable frame being rotatably connected to the second rotating frames.
[0009] As a further embodiment of this utility model, a connecting plate is fixedly installed on one side of the first rotating frame, and a first circular through hole is opened on one side of the connecting plate. Support frames are fixedly installed at both ends of the clamping frame. The first circular through hole is movably connected to the support frame. Double-ear cylinders are respectively provided at both ends of the clamping frame. Hydraulic cylinders are movably connected to the inner circular wall of the ear ring of the double-ear cylinder. The hydraulic cylinder located at the top is fixedly installed with the connecting plate, and the hydraulic cylinder located at the bottom is fixedly installed with the clamping frame.
[0010] As a further embodiment of this utility model, electromagnets are fixedly installed at both ends of the clamping frame, and a metal plate is fixedly installed on one side of the first rotating frame. The electromagnets are electrically connected to the PLC controller.
[0011] As a further embodiment of this utility model, a mounting plate is fixedly installed on the top surface of the sliding table of the screw slide.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] The positioning components, including the clamping frame, screw slide, first rotating frame, T-slot, moving plate, and spherical groove, work together to position the laser forging composite arc repair tool. This allows the repair tool to rotate and move laterally while repairing, ensuring stable and continuous operation on the repaired position. This avoids the instability issues of manual repair, guarantees repair quality, and is convenient and practical. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture for laser forging composite electric arc repair of offshore wind turbine blades proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the screw slide structure of a positioning fixture for laser forging composite arc repair of offshore wind turbine blades proposed in this utility model;
[0016] Figure 3 for Figure 2 A partial structural diagram of A in the middle;
[0017] Figure 4 for Figure 2 A schematic diagram of the partial structure of B in the diagram.
[0018] In the diagram: 1. Clamping frame; 2. Screw slide; 3. First rotating frame; 4. T-slot; 5. Moving plate; 6. Spherical groove; 7. Steel ball; 8. Tooth; 9. Fixing hole; 10. Connecting column; 11. Gear; 12. Drive motor; 13. Support frame plate; 14. Connecting plate; 15. Support frame; 16. Double-ear cylinder; 17. Hydraulic cylinder; 18. Limiting hole; 19. Moving frame; 20. Electromagnet; 21. Second rotating frame; 22. Fixing platform; 23. Mounting plate; 24. Lifting hole. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Reference Figures 1-4 A positioning fixture for laser forging composite arc repair of offshore wind turbine blades includes a clamping frame 1. A screw slide 2 is fixedly mounted on the outer circular wall of the clamping frame 1. A PLC controller is fixedly mounted on one end of the clamping frame 1. The fixture also includes a positioning component for positioning the repair tool. The positioning component is located on one side of the clamping frame 1 and includes a first rotating frame 3. The first rotating frame 3 is located on one side of the clamping frame 1. T-shaped grooves 4 are respectively formed on the outer circular wall of the first rotating frame 3 and the outer circular wall of the clamping frame 1. Two lifting holes 24 are formed on one side of the clamping frame 1. The positioning component also includes a movable plate 5 that is movably fitted inside the T-shaped grooves 4. A support frame plate 13 is provided on the outer circular wall of the clamping frame 1, and the support frame plate 13 is fixedly mounted to the movable plate 5. The support frame plate 13 has a fixing hole 9 on one side, and a connecting column 10 is movably sleeved inside the fixing hole 9. A gear 11 is fixedly sleeved on the outer circular wall of the connecting column 10. Several teeth 8 are opened on one side of the T-shaped groove 4, and the teeth 8 mesh with the gear 11. Two drive motors 12 are fixedly installed on one side of the support frame plate 13. The drive motors 12 are electrically connected to the PLC controller. One end of the drive shaft of the support frame plate 13 is fixedly installed to the connecting column 10. A fixed platform 22 is fixedly installed on one side of the movable plate 5. The fixed platform 22 is fixedly installed to the screw slide 2. The drive motor of the screw slide 2 is electrically connected to the PLC controller. Two spherical grooves 6 are opened on both sides of the movable plate 5. Steel balls 7 are movably sleeved on the inner circular wall of the spherical grooves 6.
[0023] In this embodiment, limiting holes 18 are respectively opened on the top and bottom surfaces of the clamping frame 1. A hydraulic cylinder 17 is fixedly sleeved on the inner circular wall of the limiting hole 18. A movable frame 19 is fixedly installed on the bottom surface of the telescopic shaft of the hydraulic cylinder 17. Several second rotating frames 21 are arranged inside the clamping frame 1. The movable frame 19 is rotatably connected to the second rotating frames 21. A connecting plate 14 is fixedly installed on one side of the first rotating frame 3. A first circular through hole is opened on one side of the connecting plate 14. Support frames 15 are fixedly installed at both ends of the clamping frame 1. The hole and the support frame 15 are movably connected. The two ends of the clamping frame 1 are respectively provided with double-ear cylinders 16. The inner circular wall of the ear ring of the double-ear cylinder 16 is movably connected with a hydraulic cylinder 17. The hydraulic cylinder 17 located at the top is fixedly installed with the connecting plate 14, and the hydraulic cylinder 17 located at the bottom is fixedly installed with the clamping frame 1. Electromagnets 20 are fixedly installed at both ends of the clamping frame 1. A metal plate is fixedly installed on one side of the first rotating frame 3. The electromagnet 20 is electrically connected to the PLC controller. The top surface of the sliding table of the screw slide table 2 is fixedly installed with an mounting plate 23.
[0024] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the user needs to perform laser forging composite arc repair on the wind turbine blades using the clamping frame 1, the repair tool needs to be positioned. The laser forging composite arc repair tool is installed on one side of the mounting plate 23, or a lifting cylinder is fixedly installed on one side of the mounting plate 23, and the repair tool is installed on the lifting cylinder, allowing the workpiece to move and the repair tool to pass through the interior of the support frame plate 13. Then, the user uses the hook of a crane to hook the lifting hole 24 and clamp the tool. The holding frame 1 and the first rotating frame 3 move. Simultaneously, the double-ear cylinder 16 is activated to pull the connecting plate 14 to rotate under the support of the support frame 15. This, in turn, drives the first rotating frame 3 to rotate approximately 100 degrees, causing the clamping frame 1 to be fitted onto the outside of the wind turbine blades. The area to be repaired is positioned within the internal space of the clamping frame 1, minimizing any conflict between the transverse connecting rod of the clamping frame 1 and the area to be repaired. Then, two hydraulic cylinders 17 are activated to push the moving frame 19 towards each other, using the rotatable second rotating frame 21 to adjust the wind turbine blades. The blades are externally clamped, thus fixing the clamping frame 1 to the outside of the fan blades. Then, the double-ear cylinder 16 is activated to drive the connecting plate 14 to rotate, causing the first rotating frame 3 to rotate and reset. The clamping frame 1 and the first rotating frame 3 are fixed by the magnetic attraction of the metal plate on one side of the first rotating frame 3 by the magnet 20. Then, the drive motor 12 is activated to drive the connecting column 10 to rotate, causing the gear 11 to rotate. Since the gear 11 meshes with the teeth 8, the moving plate 5 moves inside the T-shaped groove 4. The moving plate 5 is supported by several steel balls 7, which make the moving plate 5 move smoothly. This allows the laser forging composite arc repair tool to rotate. Simultaneously, the drive motor of the screw slide 2 is activated, causing the slide to move and the laser forging composite arc repair tool to move laterally. The repair tool is then adjusted and positioned at the repair location before repair work begins. This integrated positioning component allows the laser forging composite arc repair tool to rotate and move laterally while repairing, ensuring stable and continuous operation at the repair location. This avoids the instability issues associated with manual repair, guarantees repair quality, and is convenient and practical.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A positioning fixture for laser forging composite arc repair of offshore wind turbine blades, comprising a clamping frame (1), wherein a screw slide (2) is fixedly disposed on the outer circular wall of the clamping frame (1), and a PLC controller is fixedly installed at one end of the clamping frame (1), characterized in that, It also includes a positioning component for positioning the repair tool, the positioning component being disposed on one side of the clamping frame (1), the positioning component including: a first rotating frame (3), the first rotating frame (3) being disposed on one side of the clamping frame (1), the outer circular wall surface of the first rotating frame (3) and the outer circular wall surface of the clamping frame (1) respectively having T-shaped grooves (4), and two lifting holes (24) being provided on one side of the clamping frame (1).
2. The positioning fixture for laser forging composite arc repair of offshore wind turbine blades according to claim 1, characterized in that, The positioning assembly also includes a movable plate (5) that is movably fitted inside the T-groove (4). A support frame plate (13) is provided on the outer circular wall of the clamping frame (1). The support frame plate (13) is fixedly installed with the movable plate (5). A fixing hole (9) is provided on one side of the support frame plate (13). A connecting column (10) is movably fitted inside the fixing hole (9). A gear (11) is fixedly fitted on the outer circular wall of the connecting column (10). A plurality of teeth (8) are provided on one side of the interior of the T-groove (4). The teeth (8) mesh with the gear (11). The support frame... Two drive motors (12) are fixedly installed on one side of the plate (13). The drive motors (12) are electrically connected to the PLC controller. One end of the drive shaft of the support frame plate (13) is fixedly installed to the connecting column (10). A fixed platform (22) is fixedly installed on one side of the movable plate (5). The fixed platform (22) is fixedly installed to the screw slide (2). The drive motor of the screw slide (2) is electrically connected to the PLC controller. Two spherical grooves (6) are opened on both sides of the movable plate (5). A steel ball (7) is movably fitted on the inner circular wall of the spherical groove (6).
3. A positioning fixture for laser forging composite arc repair of offshore wind turbine blades according to claim 1, characterized in that, The clamping frame (1) has limit holes (18) on its top and bottom surfaces respectively. A hydraulic cylinder (17) is fixedly sleeved on the inner circular wall of the limit hole (18). A movable frame (19) is fixedly installed on the bottom surface of the telescopic shaft of the hydraulic cylinder (17). Several second rotating frames (21) are provided inside the clamping frame (1). The movable frame (19) is rotatably connected to the second rotating frames (21).
4. A positioning fixture for laser forging composite arc repair of offshore wind turbine blades according to claim 1, characterized in that, A connecting plate (14) is fixedly installed on one side of the first rotating frame (3). A first circular through hole is opened on one side of the connecting plate (14). Support frames (15) are fixedly installed at both ends of the clamping frame (1). The first circular through hole is movably connected to the support frame (15). Double-ear cylinders (16) are respectively provided at both ends of the clamping frame (1). A hydraulic cylinder (17) is movably connected to the inner circular wall of the ear ring of the double-ear cylinder (16). The hydraulic cylinder (17) located at the top is fixedly installed with the connecting plate (14), and the hydraulic cylinder (17) located at the bottom is fixedly installed with the clamping frame (1).
5. A positioning fixture for laser forging composite arc repair of offshore wind turbine blades according to claim 1, characterized in that, Electromagnets (20) are fixedly installed at both ends of the clamping frame (1), and a metal plate is fixedly installed on one side of the first rotating frame (3). The electromagnets (20) are electrically connected to the PLC controller.
6. A positioning fixture for laser forging composite arc repair of offshore wind turbine blades according to claim 1, characterized in that, The top surface of the sliding table of the screw slide (2) is fixedly mounted with an installation plate (23).