A special tooling support for wind power tower flange shape correction
By designing a special tooling bracket for wind turbine tower flange alignment, precise positioning and height/angle adjustment of the flame gun were achieved, overcoming the shortcomings of traditional preheating methods, improving welding quality and construction efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 14 CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional manual handheld flame torch preheating methods suffer from unstable preheating effects, time-consuming and labor-intensive operation, lack of precise adjustment functions, and difficulty in adapting to welding needs in different locations, thus affecting welding quality and construction progress.
A tooling bracket specifically designed for the alignment of wind turbine tower flanges is presented, comprising a base, a bracket assembly, and a flame gun holder. By adjusting the height and angle of the bracket assembly, the flame gun can be precisely positioned to achieve uniform preheating of the welding area. A modular design is adopted to improve ease of operation and adaptability.
It improves preheating uniformity, reduces welding stress and deformation risk, enhances welding quality and construction efficiency, reduces labor intensity and equipment management costs, and extends the service life of wind turbine towers.
Smart Images

Figure CN224322487U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine tower welding technology, and in particular to a tooling bracket specifically for wind turbine tower flange alignment. Background Technology
[0002] Currently, in the manufacturing process of wind turbine towers, the welding quality of flanges directly affects the tower's operational performance. Preheating the welding area before welding is a crucial step, aiming to reduce the cooling rate, prevent the formation of hardened structures, minimize welding stress and deformation, and thus prevent cracking. However, the traditional manual handheld flame torch preheating method has the following problems:
[0003] 1. The preheating effect is unstable, which can easily lead to local overheating or insufficient heating;
[0004] 2. The operation is time-consuming and labor-intensive, affecting the construction progress;
[0005] 3. It lacks precise adjustment functions, making it difficult to adapt to welding requirements in different positions. Utility Model Content
[0006] To address the aforementioned issues, this utility model provides a tooling bracket specifically designed for the alignment of wind turbine tower flanges. This bracket allows for flexible adjustment of the flame gun position according to different welding locations, thereby meeting the preheating and alignment requirements for wind turbine tower flange welding.
[0007] The technical solution adopted in this utility model is as follows:
[0008] A special tooling bracket for wind turbine tower flange calibration includes a base, with a bracket assembly fixedly installed at the center of the base; the bracket assembly is L-shaped in general, and a gun holder is provided on one side to facilitate the fixing of a flame gun; the flame gun is detachably installed on the gun holder, and its height and angle can be adjusted relative to the welding position of the tower through the bracket assembly.
[0009] Furthermore, the support assembly includes an outer support, an inner support, and an inner support positioning component; the outer support is a hollow tube that is fixedly installed at the center of the base; the inner support is an L-shaped rod with one end inserted into the outer support and able to rotate relative to the outer support, and the other end extending outward and equipped with a gun holder; the outer support is equipped with an inner support positioning component that can position the inner support.
[0010] Furthermore, the outer support tube is provided with a horizontally outwardly extending threaded tube; the support positioning component is a T-shaped structure, one side of which is a threaded rod that is threadedly connected to the threaded tube, and the end of the threaded rod can extend into the outer support tube and abut against the outer wall of the inner support.
[0011] Furthermore, a threaded hole is provided at the end of the other end of the inner bracket, and the gun holder is detachably installed at the other end of the inner bracket through the gun holder positioning component; the gun holder positioning component is a T-shaped structure, one side of which is a threaded rod that is threaded to the threaded hole, and an abutment bolt and a washer are fixedly installed on the threaded rod.
[0012] Furthermore, the gun holder includes a mounting plate with a mounting hole at the bottom and a gun barrel fixed at the top. The gun barrel is a hollow tube with a horizontally outward-extending threaded tube. The T-shaped gun positioning component is threadedly connected to the threaded tube and can extend into the gun barrel to abut against the outer wall of the flame gun.
[0013] The beneficial effects of this utility model are:
[0014] 1. Improve preheating uniformity: Through the height and angle adjustment function of the support assembly, the flame torch can be precisely positioned to the welding area, ensuring uniform preheating and avoiding problems such as local overheating or insufficient heating, thereby effectively reducing welding stress and deformation risks.
[0015] 2. Convenient and efficient operation: The modular design allows for flexible adjustment and quick fixing of the support components, significantly reducing manual operation time and labor intensity, improving construction efficiency, and shortening the construction period.
[0016] 3. Stable and reliable structure: The outer support, inner support and gun holder are securely locked through threaded connections and positioning components, ensuring the stability of the flame gun during use and preventing welding quality from being affected by vibration or displacement.
[0017] 4. High adaptability: The support frame can be precisely adjusted in height and angle according to the welding requirements of different models of wind turbine tower flanges, and is suitable for various welding positions, with strong versatility and flexibility.
[0018] 5. Easy to disassemble and transport: The components of the tooling bracket are detachable, which facilitates storage and transportation, reducing equipment maintenance and management costs.
[0019] 6. Improve welding quality: By optimizing the preheating process, the formation of hardened structures is reduced, and the generation of welding cracks is prevented, thereby improving the overall quality of flange welding and extending the service life of wind turbine towers.
[0020] In summary, this tooling bracket specifically designed for wind turbine tower flange alignment provides an efficient and reliable solution for wind turbine tower flange welding, helping to improve production efficiency and welding quality while reducing construction costs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the tooling bracket specifically designed for the alignment of wind turbine tower flanges according to this utility model.
[0022] Figure 2 This is a schematic diagram showing the connection between the inner support and the gun mount of this utility model;
[0023] In the diagram: 1—base, 2—gun mount, 3—outer support, 4—inner support, 5—support positioning piece, 6—gun mount positioning piece, 7—abutment bolt, 8—washer, 9—mounting plate, 10—gun barrel mount, 11—spray gun positioning piece. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] To address the problems of traditional manual handheld flame gun preheating methods, this embodiment provides a tooling bracket specifically designed for wind turbine tower flange alignment. For example... Figure 1 As shown, the tooling bracket specifically designed for wind turbine tower flange calibration includes a base 1, a bracket assembly, and a flame gun holder 2. The bracket assembly is fixedly installed at the center of the base 1 and is L-shaped overall. The flame gun holder 2 is installed on one side of the bracket assembly and is used to fix the flame gun. The flame gun is detachably mounted on the flame gun holder 2, and its height and angle relative to the tower welding position can be adjusted via the bracket assembly.
[0026] Specifically, in this embodiment, the base 1 is a steel plate 300 mm long, 300 mm wide, and 20 mm thick, used to fix the entire support assembly; a circular hole with a diameter of 38 mm is opened at the center of the base 1 for mounting the support assembly. Figure 1 As shown, the support assembly in this embodiment is generally L-shaped, including an outer support 3, an inner support 4, and a positioning component for the inner support 4. The outer support 3 is a hollow tube with a diameter of 38 mm and a height of 1000 mm, vertically inserted into the center of the base 1 through a circular hole and welded to the base 1. The inner support 4 is an L-shaped rod with a vertical length of 800 mm and a horizontal length of 335 mm; one end of the inner support 4 is inserted into the outer support 3 and can rotate relative to it, while the other end extends outward and is fitted with a gun mount 2. Considering the rotational positioning of the inner support 4 relative to the outer support 3 and the height adjustment, as... Figure 1As shown, in this embodiment, a horizontally extending threaded tube is provided on the tube body of the outer support 3. Of course, a nut can also be used instead of the threaded tube. The interior of the threaded tube is connected to the interior of the outer support 3 through an opening. The support positioning member 5 in this embodiment is a T-shaped structure, one side of which is a threaded rod that is threaded to the threaded tube. The end of the threaded rod can extend into the tube body of the outer support 3 and abut against the outer wall of the inner support 4, thereby limiting the rotational positioning and height adjustment of the inner support 4 relative to the outer support 3.
[0027] like Figure 2 As shown, the gun holder 2 in this embodiment includes a mounting plate 9, which is a steel plate 110 mm long, 30 mm wide, and 5 mm thick. The mounting plate 9 has mounting holes at its lower part and a gun barrel 10 fixed at its upper part. The gun barrel 10 has a structure similar to the outer bracket 3. It is a hollow tube with a diameter of 38.5 mm and a length of 30 mm, and its outer wall is welded to the mounting plate 9. The tube of the gun barrel 10 has a horizontally extending threaded tube, or a nut can be used instead of the threaded tube. The structure of the spray gun positioning component 11 is similar to that of the bracket positioning component 5. The T-shaped spray gun positioning component 11 is threadedly connected to the threaded tube and can extend into the gun barrel 10 to abut against the outer wall of the flame gun. The function of the gun holder 2 is to fix the flame gun. After the flame gun barrel passes through the gun barrel 10, it is limited by the spray gun positioning component 11.
[0028] Considering the connection issue between the inner bracket 4 and the gun mount 2, such as Figure 2 As shown, in this embodiment, a threaded hole is opened at the other end of the inner bracket 4, and the gun holder 2 is detachably installed on the other end of the inner bracket 4 through the gun holder positioning component 6. The gun holder positioning component 6 is similar in structure to the spray gun positioning component 11 and the bracket positioning component 5. The gun holder positioning component 6 is a T-shaped structure, with a threaded rod on one side that is threaded to the threaded hole. An abutment bolt 7 is fixedly welded on the threaded rod, and a washer 8 is fitted on it. After the threaded rod of the gun holder positioning component 6 passes through the mounting hole on the mounting plate 9, it is threaded to the other end of the inner bracket 4. After the threaded connection, the abutment bolt 7 on the gun holder positioning component 6, through the washer 8, cooperates with the end face of the inner bracket 4 to fix and clamp the mounting plate 9 of the gun holder 2. This clamping installation method allows the gun holder 2 to be detached and its angle to be adjusted.
[0029] Based on the specific structure of the tooling bracket specifically designed for wind turbine tower flange calibration, its usage process is as follows:
[0030] First, place the outer support 3 and base 1 on a flat, hard surface to ensure foundation stability. Then, install the inner support 4 and the torch holder 2 in sequence. Adjust the height and angle of the inner support 4 according to the preheating and straightening requirements of the wind turbine tower flange welding and the welding position, and use the support positioning piece 5 to limit the inner support 4. Next, pass the flame gun through the torch tube 10 of the torch holder 2, and use the torch positioning piece 11 to limit the flame gun. Finally, adjust the angle of the torch holder 2 relative to the inner support 4, and use the torch holder positioning piece 6 to limit the angle of the torch holder 2. At this point, the preheating and straightening work for the wind turbine tower flange welding can begin.
[0031] This specialized tooling bracket for wind turbine tower flange alignment overcomes the shortcomings of traditional manual preheating methods through its multi-angle and height adjustment capabilities. During use, it is easy to operate, reduces manual intervention, improves construction efficiency, lowers labor costs, and significantly enhances the efficiency and quality of wind turbine tower flange welding. Furthermore, after the wind turbine tower flange welding work is completed, components such as the inner bracket 4 and the gun holder 2 can be retracted or disassembled for easy transport.
[0032] 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 tooling bracket specifically for calibrating wind turbine tower flanges, characterized in that: The tooling bracket for the wind turbine tower flange calibration includes a base, with a bracket assembly fixedly installed at the center of the base; the bracket assembly is L-shaped in general, with a gun holder on one side for easy fixing of the flame gun; the flame gun is detachably installed on the gun holder, and its height and angle can be adjusted relative to the welding position of the tower through the bracket assembly. The support assembly includes an outer support, an inner support, and an inner support positioning component; the outer support is a hollow tube that is fixedly installed at the center of the base; the inner support is an L-shaped rod with one end inserted into the outer support and able to rotate relative to the outer support, and the other end extending outward and equipped with a gun holder; the outer support is equipped with an inner support positioning component that can position the inner support. The outer support tube is provided with a horizontally outwardly extending threaded tube; the support positioning component is a T-shaped structure, one side of which is a threaded rod that is threadedly connected to the threaded tube, and the end of the threaded rod can extend into the outer support tube and abut against the outer wall of the inner support. The other end of the inner support is provided with a threaded hole, and the gun mount is detachably installed on the other end of the inner support through the gun mount positioning component; the gun mount positioning component is a T-shaped structure, one side of which is a threaded rod that is threaded to the threaded hole, and an abutment bolt and a washer are fixedly installed on the threaded rod. The gun holder includes a mounting plate with mounting holes at the bottom and a gun barrel fixed at the top. The gun barrel is a hollow tube with a horizontally extending threaded tube on it. The T-shaped gun positioning component is threadedly connected to the threaded tube and can extend into the gun barrel to abut against the outer wall of the flame gun.