A kind of wind turbine steel pipe angle self-adjusting bending tool equipment

Abstract

This invention discloses a self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets, relating to the technical field of metal bending devices. The fixture includes a bending frame, a bending turntable mounted on the bending frame, a gearbox at the bottom of the bending turntable, a bending motor mounted on the gearbox, the output end of the bending motor embedded in and connected to the gearbox, a bending rod mounted on the bending turntable, a protective component mounted on the bending rod, a feeding track mounted on the bending frame, multiple feeding pipes mounted on the feeding track, each feeding pipe being rotatably connected to the feeding track, adjacent feeding pipes meshing through a feeding gear set, a feedback component mounted on the bending turntable, the feedback component being electrically connected to the protective component and the bending motor via wires, a protective disc mounted on the feeding pipe, the protective disc being slidably connected to the feeding pipe, and multiple stabilizing rods mounted on the bending frame, each stabilizing rod being slidably connected to the bending frame.

Description

Technical Field

[0001] This invention relates to the field of metal bending device technology, specifically to a self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets. Background Technology

[0002] In daily life, we sometimes need to bend steel pipes into certain shapes. Without professional bending tools, we can only bend them manually. However, manual bending is not only time-consuming and laborious, but the shape of the bent steel pipe is also unsatisfactory, often resulting in the steel pipe denting or even breaking. Moreover, the steel pipes used in some large equipment have even higher precision requirements, which cannot be met manually. For example, the steel frame of generator sets and some support frames. The steel pipes in these parts not only have requirements for shape, but also for toughness and rigidity. Ordinary bending machines cannot meet the requirements, and manual bending is even more unacceptable.

[0003] When bending these steel pipes, a complete set of bending equipment is used, which includes two processes: cold bending and hot pushing. For bending steel pipes, the greater the tensile strength, the smaller the elongation. Therefore, the required bending force and bending angle are larger. If the yield strength of the steel pipe is greater, the elastic recovery will be greater. Therefore, there are many issues to pay attention to when bending this type of steel pipe. For example, during the bending process, it is necessary to pay attention to the shape changes of the steel pipe at all times to avoid flattening and denting. At the same time, it should be noted that the elastic recovery of the steel pipe after bending is one of the main reasons for the low bending accuracy. In addition, the temperature change of the steel pipe itself during the bending process will also affect the toughness of the steel pipe at the bend. Currently, these problems are difficult to solve on the same equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a self-adjusting bending fixture for steel pipes used in wind turbine generator sets.

[0006] The tooling equipment includes a bending frame, a bending turntable mounted on the bending frame, a gearbox at the bottom of the bending turntable, a bending motor mounted on the gearbox, the output end of the bending motor embedded in and connected to the gearbox, a bending rod mounted on the bending turntable, a protective component mounted on the bending rod, a feeding rail mounted on the bending frame, multiple feeding pipes mounted on the feeding rail, each feeding pipe rotatably connected to the feeding rail, adjacent feeding pipes meshing through a feeding gear set, a feedback component mounted on the bending turntable, the feedback component electrically connected to the protective component and the bending motor via wires, a protective disc mounted on the feeding pipe, the protective disc slidably connected to the feeding pipe, and multiple stabilizing rods mounted on the bending frame, each stabilizing rod being connected to the bending frame. In a sliding connection, the steel pipe to be bent is first placed on the feed rail and moved under the clamping of the feed tubes. The feed tubes rotate through the movement of the feed gear set, allowing both sides of the feed tubes to rotate, thus moving the steel pipe onto the bending turntable. Then, the bending motor rotates, and through the transmission of the gearbox, it drives the components on the bending turntable to rotate, thereby bending the steel pipe. During the bending process, the feedback component detects the bending angle and provides timely feedback, while the protective component automatically adjusts the bending rod according to the current bending condition to reduce damage to the bending point of the steel pipe. It also adapts to the bending angle of the steel pipe to reduce the problem of extrusion damage.

[0007] The bending turntable contains multiple bending rings, which are slidably connected to each other. Each bending ring has a bending rod, which is rotatably connected to the bending ring. Multiple directional slides are located on the side of the bending turntable near the feed rail, and each directional slide is slidably connected to the bending turntable. Each bending ring has a bending gear, which is connected to a gearbox. Different bending rings can be rotated according to different bending requirements. During the rotation of the bending rings, the bending motor drives the bending gears on the bending rings to rotate via the gearbox, thus causing the bending rings to rotate. The bending rods on the bending rings will press against the steel pipe and rotate, while the directional slides will support the fed steel pipe.

[0008] The gearbox contains a transmission gear, which is rotatably connected to the gearbox. The output end of the bending motor meshes with the transmission gear. Multiple transmission shafts are also located within the gearbox, each rotatably connected to the gearbox. The transmission gears have multiple stages of teeth. Multiple actuating levers are mounted on the gearbox, each slidably connected to the gearbox. These levers are fitted onto the transmission shafts and rotatably connected to them. The transmission shafts have teeth at both ends and mesh with corresponding bending gears. During bending, the bending motor drives the transmission gears to rotate, which in turn drives the transmission shafts to rotate. Once the bending angle and shape are determined, the actuating levers are adjusted to engage the corresponding transmission shaft with the transmission gear, causing the transmission shaft to rotate with the corresponding bending gear. The bending ring rotates on the bending turntable. This structure allows the bending ring to rotate the steel pipe.

[0009] The gearbox is equipped with a locking assembly, which includes a locking plate that is slidably connected to the inner wall of the gearbox. The locking plate intermittently meshes with the transmission gear. A trigger shaft is provided on the output end of the bending motor, and the trigger shaft is rotatably connected to the gearbox. The cross-section of the trigger shaft is polygonal. A connecting rod is provided on the gearbox, and the connecting rod is connected to the locking plate and slidably connected to the gearbox. After bending, the locking assembly on the gearbox can lock the transmission gear. After bending, the locking plate moves under the movement of the connecting rod, so that the locking plate is embedded in the transmission gear, thereby locking the transmission gear and preventing the steel pipe from deforming and rebounding back against the bending ring, requiring further bending. A spring is used to hold the connecting rod and the gearbox in place. The number of sides of the polygon is adjusted according to the number of teeth of the current bending gear, so that the connecting rod can slide after starting.

[0010] The feeding track includes a feeding frame, on which a feeding motor is installed. Multiple feeding blocks are mounted on the feeding frame, each slidably connected to the frame. Feeding pipes are rotatably connected to their corresponding feeding blocks. The feeding motor is connected to the feeding pipe via pulleys, and feeding pipes on the same side are connected via pulleys. A feeding gear set is movably connected to the feeding frame. During feeding, the feeding motor drives the feeding pipe to rotate, and adjacent feeding pipes rotate under the drive of the pulleys. The position of the feeding blocks is adjusted according to the specifications of the steel pipe, and the feeding gear set adapts to the current feeding block, thus achieving smoother feeding.

[0011] The feedback assembly includes a detection plate connected to the bending frame via a bracket. Infrared detection lights are mounted on the detection plate, along with a feedback box connected to the infrared detection lights via wires. An infrared receiving plate is also mounted on the detection plate, electrically connected to the feedback box via wires. The feedback box is electrically connected to the bending motor via wires. During bending, the detection plate is positioned above the bending turntable, and the infrared detection lights activate, emitting infrared rays that bounce back to the infrared receiving plate. Both the bending ring and the bending turntable are relatively smooth. Infrared detection transmits temperature information from the steel pipe to the feedback box. High temperatures are generated at the bending point during bending; the greater the deformation, the more pronounced the temperature change. Simultaneously, the bending motor is adjusted to rotate at different speeds based on the position of the steel pipe, and the protective components are also activated.

[0012] The protective assembly includes multiple protective blocks, each of which is slidably connected to a bending rod. The bending rod contains an ejector cone and a protective cylinder. The ejector cone is located at the output end of the protective cylinder and is slidably connected to both the bending rod and the protective block. The protective cylinder is electrically connected to a feedback box via wires. During bending, the protective assembly adapts to the current bending radius. Based on the steel pipe deformation information transmitted from the feedback box, it moves the protective cylinder to eject the ejector cone. The shape of the ejector cone causes the protective block to slide within the bending rod. After the protective block extends out of the bending rod, it changes the bending radius, preventing over-bending and thus avoiding breakage or damage to the steel pipe.

[0013] Multiple protective shafts are installed on the side of the protective block near the bending turntable. Each protective shaft is rotatably connected to the other protective shaft. A connecting frame is installed on the bending turntable, which includes a fixed frame and a steering frame. A steering motor is installed on the fixed frame, and a cleaning air gun is installed on the steering frame. During the bending process, a large amount of debris will be generated due to oxide scale and other substances. If this debris is not removed in time, it will affect the bending accuracy and the bending effect. During the bending process, the cleaning air gun will rotate on the fixed frame under the action of the steering motor, thereby scanning the entire bending turntable and removing impurities on the bending turntable.

[0014] The bending frame is equipped with a support slide rail, and a stabilizing slider is rotatably connected to the stabilizing rod. The stabilizing slider is embedded in the support slide rail and slidably connected to it. The stabilizing rod is equipped with a support foot, which is rotatably connected to the stabilizing rod. The stabilizing rod is equipped with a locking bolt, which is rotatably connected to the stabilizing rod and abuts against the support foot. During bending or feeding, the equipment may shake. At this time, the stabilizing rod will stabilize the upper feed rail and gearbox to prevent large shaking. Adjust the position of the stabilizing slider, then adjust the angle between the stabilizing rod and the bending frame, and adjust the height of the bending frame accordingly. Then rotate the locking bolt so that it moves towards the support foot, thereby locking the support foot.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: 1. The present invention adopts a component with automatic feeding and multi-position and multi-angle bending, which can bend the current steel pipe at multiple angles and positions, thereby realizing the bending of various specifications of steel pipes in various shapes, avoiding the single bending method of traditional bending equipment, so that the steel pipe can be fully adapted to the splicing and installation of various equipment.

[0016] 2. This invention employs an automatic feedback component and an automatic bending component, which can automatically perform contour positioning and temperature analysis on the steel pipe currently being bent. It can determine the changes in toughness and shape of the steel pipe and adjust the protective component through current analysis, so that the protective component can fully adapt to the current characteristics of the steel pipe and adjust the working state of the protective component to avoid problems such as steel pipe breakage and flattening.

[0017] 3. This invention adopts an integrated feeding and bending structure, which reduces the problem of steel pipe deviation during the bending process. At the same time, the impurity removal air gun on the bending turntable can also rotate to remove the bending impurities generated on the bending ring in a timely manner, avoiding scratches on the steel pipe, and also allowing the steel pipe to be cooled and shaped in a timely manner. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a top view of the structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the feedback component structure of the present invention;

[0022] Figure 4This is a schematic diagram of the feeding track structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the gearbox of the present invention;

[0024] Figure 6 This is a top view of the gearbox structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the protective component and bending rod structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the locking component structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the stabilizer bar structure of the present invention;

[0028] In the diagram: 1. Bending frame; 101. Support slide; 2. Bending turntable; 201. Bending ring; 202. Directional slide bar; 203. Bending gear; 3. Gearbox; 301. Transmission gear; 302. Transmission shaft; 303. Actuating rod; 4. Bending motor; 5. Bending rotating rod; 6. Protective components; 601. Protective block; 602. Push-out cone block; 603. Protective cylinder; 604. Protective rotating shaft; 605. Connecting frame; 606. Fixing frame; 607. Bogie; 608. Steering motor; 609. Excluding... 7. Stirred gas gun; 8. Feeding track; 9. Feeding rack; 10. Feeding motor; 11. Feeding block; 12. Feeding pipe; 13. Feeding gear set; 14. Feedback assembly; 15. Detection plate; 16. Infrared detection lamp; 17. Feedback box; 18. Infrared receiving plate; 19. Protective plate; 10. Stabilizing rod; 10. Stabilizing slider; 11. Support foot; 12. Locking bolt; 13. Locking assembly; 14. Locking plate; 15. Trigger shaft; 16. Linkage rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The tooling equipment includes a bending frame 1, a bending turntable 2 mounted on the bending frame 1, a gearbox 3 at the bottom of the bending turntable 2, a bending motor 4 mounted on the gearbox 3, the output end of the bending motor 4 being embedded in and connected to the gearbox 3, a bending rotating rod 5 mounted on the bending turntable 2, a protective component 6 mounted on the bending rotating rod 5, a feeding track 7 mounted on the bending frame 1, multiple feeding pipes 8 mounted on the feeding track 7, each feeding pipe 8 being rotatably connected to the feeding track 7, adjacent feeding pipes 8 being meshed through a feeding gear set 9, a feedback component 10 mounted on the bending turntable 2, the feedback component 10 being electrically connected to the protective component 6 and the bending motor 4 via wires, a protective disc 11 mounted on the feeding pipe 8, the protective disc 11 being slidably connected to the feeding pipe 8, and multiple... Each of the 12 stabilizers is slidably connected to the bending frame 1. During processing, the steel pipe to be bent is first placed on the feeding track and moved under the clamping of the feeding pipe. The feeding pipes are moved by the movement between the feeding gear sets, so that the feeding pipes on both sides can rotate, thereby moving the steel pipe to the bending turntable. Then the bending motor rotates and drives the components on the bending turntable to rotate through the transmission of the gearbox, so that the steel pipe can be bent. During the bending process, the feedback component will detect the bending angle and provide timely feedback. The protection component will automatically adjust the bending rod according to the current bending condition to reduce damage to the bending point of the steel pipe, and also adapt to the bending angle of the steel pipe to reduce the problem of squeezing damage to the steel pipe.

[0031] The bending turntable 2 is equipped with multiple bending rings 201, which are slidably connected to each other. Each bending ring 201 is equipped with a bending rotating rod 5, which is rotatably connected to the bending ring 201. The bending turntable 2 is equipped with multiple directional sliding rods 202 on the side near the feed rail 7, which are slidably connected to the bending turntable 2. Each bending ring 201 is equipped with a bending gear 203, which is connected to the gearbox 3. According to different bending requirements, different bending rings can be rotated. During the rotation of the bending rings, the bending motor drives the bending gears on the bending rings to rotate through the gearbox, thereby causing the bending rings to rotate. The bending rotating rods on the bending rings will abut against the steel pipes and rotate, while the directional sliding rods will support the fed steel pipes.

[0032] Gearbox 3 contains a transmission gear 301, which is rotatably connected to gearbox 3. The output end of bending motor 4 meshes with transmission gear 301. Gearbox 3 contains multiple transmission shafts 302, each rotatably connected to gearbox 3. Transmission gear 301 has multiple stages of teeth. Gearbox 3 contains multiple actuating rods 303, each slidably connected to gearbox 3. Actuating rod 303 is sleeved on transmission shaft 302 and rotatably connected to transmission shaft 302. 02 has teeth at both ends, and the transmission shaft 302 meshes with the corresponding bending gear 203. During the bending process, the bending motor drives the transmission gear to rotate, and the transmission gear will drive the transmission shaft to rotate. After the current bending angle and bending shape are determined, the corresponding transmission shaft and transmission gear are meshed by adjusting the lever, and the transmission shaft will rotate with the corresponding bending gear. The bending ring rotates on the bending turntable. Through this structure, the current bending ring can rotate the steel pipe.

[0033] A locking assembly 13 is provided inside the gearbox 3. The locking assembly 13 includes a locking plate 1301, which is slidably connected to the inner wall of the gearbox 3. The locking plate 1301 intermittently meshes with the transmission gear 301. A trigger shaft 1302 is provided on the output end of the bending motor 4. The trigger shaft 1302 is rotatably connected to the gearbox 3. The cross-section of the trigger shaft 1302 is polygonal. A connecting rod 1303 is provided on the gearbox 3. The connecting rod 1303 is connected to the locking plate 1301. The connecting rod 1303 and... The gearbox 3 is slidably connected. After bending, the locking component on the gearbox can lock the transmission gear. After bending, the locking plate moves under the movement of the connecting rod, so that the locking plate is embedded in the transmission gear, thereby locking the transmission gear and preventing the steel pipe from deforming and rebounding back against the bending ring. If bending is required again, there is a spring between the connecting rod and the gearbox. The number of sides of the polygon is adjusted according to the number of teeth of the current bending gear, so that the connecting rod can be driven to slide after departure.

[0034] The feeding track 7 includes a feeding frame 701, on which a feeding motor 702 is installed. Multiple feeding blocks 703 are respectively installed on the feeding frame 701, and each feeding block 703 is slidably connected to the feeding frame 701. The feeding pipes 8 are rotatably connected to the corresponding feeding blocks 703. The feeding motor 702 is connected to the feeding pipes 8 through pulleys. The feeding pipes 8 on the same side are connected to each other through pulleys. The feeding gear set 9 is movably connected to the feeding frame 701. During the feeding process, the feeding motor will drive the feeding pipes to rotate. Adjacent feeding pipes will rotate under the drive of the pulleys. The position of the feeding blocks will be adjusted according to the current specifications of the steel pipes. The feeding gear set will be adjusted to adapt to the current feeding blocks, thereby achieving smoother feeding.

[0035] Feedback component 10 includes a detection plate 1001, which is connected to the bending frame 1 via a bracket. An infrared detection lamp 1002 is mounted on the detection plate 1001. A feedback box 1003 is mounted on the detection plate 1001 and connected to the infrared detection lamp 1002 via a wire. An infrared receiving plate 1004 is mounted on the detection plate 1001 and electrically connected to the feedback box 1003 via a wire. The feedback box 1003 is electrically connected to the bending motor 4 via a wire. During bending... During the bending process, the detection plate is located above the bending turntable, and the infrared detection lamp will be activated. The infrared detection lamp will emit infrared rays, which will bounce back to the infrared receiving plate. Both the bending ring and the bending turntable are relatively smooth. Through infrared detection, the temperature information on the steel pipe will be transmitted to the feedback box. During the bending process, high temperatures will be generated at the bending point. The greater the deformation, the more obvious the temperature change. At the same time, the bending motor is adjusted to rotate at different speeds according to the position of the steel pipe, and the protective components are also activated.

[0036] The protective component 6 includes multiple protective blocks 601, each of which is slidably connected to the bending rod 5. The bending rod 5 contains a push-out cone 602 and a protective cylinder 603. The push-out cone 602 is located at the output end of the protective cylinder 603 and is slidably connected to both the bending rod 5 and the protective blocks 601. The protective cylinder 603 is electrically connected to the feedback box 1003 via a wire. During bending, the protective component adapts to the current bending radius. Based on the steel pipe deformation information transmitted from the feedback box, it moves the protective cylinder to push out the push-out cone. The shape of the push-out cone causes the protective block to slide within the bending rod. After the protective block extends out of the bending rod, it changes the bending radius, preventing over-bending and thus avoiding breakage or damage to the steel pipe.

[0037] Multiple protective shafts 604 are provided on the side of the protective block 601 near the bending turntable 5. Each protective shaft 604 is rotatably connected to the protective turntable 604. A connecting frame 605 is provided on the bending turntable 2. The connecting frame 605 includes a fixed frame 606 and a steering frame 607. A steering motor 608 is provided on the fixed frame 606. The steering frame 607 is located on the output end of the steering motor 608. A cleaning air gun 609 is provided on the steering frame 607. During the bending process, a large amount of debris will be generated due to oxide scale and other substances. If these debris are not removed in time, they will affect the bending accuracy and the bending effect. During the bending process, the cleaning air gun will rotate on the fixed frame under the action of the steering motor, thereby scanning the entire bending turntable and removing impurities on the bending turntable.

[0038] The bending frame 1 is equipped with a support slide 101. A stabilizing slider 1201 is rotatably connected to the stabilizing rod 12. The stabilizing slider 1201 is embedded in the support slide 101 and slidably connected to the support slide 101. A support foot 1202 is provided on the stabilizing rod 12. The support foot is rotatably connected to the stabilizing rod 12. A locking bolt 1203 is provided on the stabilizing rod 12. The locking bolt 1203 is rotatably connected to the stabilizing rod 12 and abuts against the support foot 1202. When bending or feeding, the equipment may shake. At this time, the stabilizing rod will stabilize the upper feed rail and gearbox to prevent large shaking. Adjust the position of the stabilizing slider, then adjust the angle between the stabilizing rod and the bending frame, and adjust the height of the bending frame accordingly. Then rotate the locking bolt so that the locking bolt moves towards the support foot, thereby completing the locking of the support foot.

[0039] The working principle of this invention is as follows: During processing, the steel pipe to be bent is first placed on the feeding track 7. The feeding motor 702 drives the feeding pipe 8 to rotate, and the steel pipe moves under the clamping of the feeding pipe 8. The feeding pipes 8 are moved by the movement between the feeding gear set 9, so that both sides of the feeding pipes 8 can rotate, thereby moving the steel pipe to the bending turntable 2. Then, the bending motor 4 rotates, driving the transmission gear 301 to rotate. At the same time, the actuating rod 303 is adjusted to move the corresponding transmission shaft 302, thereby making the transmission shaft 302 mesh with the transmission gear 301, causing the bending ring 201 to rotate, and the bending rotating rod 5 on the bending ring 201... The steel pipe is held in place, allowing it to be bent. During the bending process, the feedback component 10 detects the bending angle and temperature changes at the bending point and provides timely feedback, automatically adjusting the speed of the bending motor 4. This prevents deformation of the steel pipe due to excessive bending speed and reduces the elastic recovery of the steel pipe. The protective component 6 automatically adjusts the bending rod 5 according to the current bending condition. The protective cylinder 603 moves the abutting cone 602, causing it to shift and adjust the protective block 601, reducing damage to the bending point of the steel pipe. It also adapts to the bending angle of the steel pipe, reducing the risk of compression damage.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets, characterized in that: The tooling equipment includes a bending frame (1), on which a bending turntable (2) is mounted. A gearbox (3) is mounted at the bottom of the bending turntable (2), and a bending motor (4) is mounted on the gearbox (3). The output end of the bending motor (4) is embedded in the gearbox (3) and connected to the gearbox (3). A bending rotating rod (5) is mounted on the bending turntable (2), and a protective component (6) is mounted on the bending rotating rod (5). A feeding track (7) is mounted on the bending frame (1), and multiple feeding pipes (8) are mounted on the feeding track (7). Each of the feed pipes (8) is rotatably connected to the feed rail (7), and adjacent feed pipes (8) are meshed by a feed gear set (9). A feedback component (10) is provided on the bending turntable (2), and the feedback component (10) is electrically connected to the protective component (6) and the bending motor (4) through a wire. A protective disc (11) is provided on the feed pipe (8), and the protective disc (11) is slidably connected to the feed pipe (8). A plurality of stabilizing rods (12) are provided on the bending frame (1), and each stabilizing rod (12) is slidably connected to the bending frame (1). The bending turntable (2) is provided with a plurality of bending rings (201), adjacent bending rings (201) are slidably connected, and each bending ring (201) is provided with a bending rotating rod (5), and each bending rotating rod (5) is rotatably connected to the bending ring (201); The feedback component (10) includes a detection plate (1001), which is connected to the bending frame (1) via a bracket. An infrared detection lamp (1002) is provided on the detection plate (1001). A feedback box (1003) is provided on the detection plate (1001). The feedback box (1003) is connected to the infrared detection lamp (1002) via a wire. An infrared receiving plate (1004) is provided on the detection plate (1001). The infrared receiving plate (1004) is electrically connected to the feedback box (1003) via a wire. The feedback box (1003) is electrically connected to the bending motor (4) via a wire. The protective component (6) includes multiple protective blocks (601), each of which is slidably connected to the bending rotating rod (5). The bending rotating rod (5) is provided with a push-out cone (602) and a protective cylinder (603). The push-out cone (602) is located on the output end of the protective cylinder (603). The push-out cone (602) is slidably connected to the bending rotating rod (5) and to the protective block (601). The protective cylinder (603) is electrically connected to the feedback box (1003) via a wire. The protective block (601) is provided with a plurality of protective shafts (604) on the side near the bending rod (5), and each of the protective shafts (604) is rotatably connected to the protective block (601).

2. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 1, characterized in that: The bending turntable (2) is provided with a plurality of directional slide rods (202) on the side near the feeding track (7). Each of the directional slide rods (202) is slidably connected to the bending turntable (2). Each of the bending rings (201) is provided with a bending gear (203), and each of the bending gears (203) is connected to the gearbox (3).

3. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 2, characterized in that: The gearbox (3) is provided with a transmission gear (301), which is rotatably connected to the gearbox (3). The output end of the bending motor (4) meshes with the transmission gear (301). The gearbox (3) is provided with multiple transmission shafts (302), each of which is rotatably connected to the gearbox (3). The transmission gear (301) is provided with multiple teeth. The gearbox (3) is provided with multiple actuating rods (303), each of which is slidably connected to the gearbox (3). The actuating rod (303) is sleeved on the transmission shaft (302) and rotatably connected to the transmission shaft (302). The two ends of the transmission shaft (302) are respectively provided with teeth, and the transmission shaft (302) meshes with the corresponding bending gear (203).

4. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 3, characterized in that: A locking assembly (13) is provided inside the gearbox (3). The locking assembly (13) includes a locking plate (1301). The locking plate (1301) is slidably connected to the inner wall of the gearbox (3). The locking plate (1301) intermittently meshes with the transmission gear (301). A trigger shaft (1302) is provided on the output end of the bending motor (4). The trigger shaft (1302) is rotatably connected to the gearbox (3). The cross-section of the trigger shaft (1302) is polygonal. A connecting rod (1303) is provided on the gearbox (3). The connecting rod (1303) is connected to the locking plate (1301). The connecting rod (1303) is slidably connected to the gearbox (3).

5. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 1, characterized in that: The feeding track (7) includes a feeding rack (701), a feeding motor (702) is provided on the feeding rack (701), and a plurality of feeding blocks (703) are respectively provided on the feeding rack (701). Each feeding block (703) is slidably connected to the feeding rack (701). The feeding pipe (8) is rotatably connected to the corresponding feeding block (703). The feeding motor (702) is connected to the feeding pipe (8) through a pulley. The feeding pipes (8) on the same side are connected to each other through pulleys. The feeding gear set (9) is movably connected to the feeding rack (701).

6. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 1, characterized in that: The bending turntable (2) is provided with a connecting frame (605), which includes a fixed frame (606) and a bogie (607). The fixed frame (606) is provided with a steering motor (608), and the bogie (607) is located on the output end of the steering motor (608). The bogie (607) is provided with a cleaning air gun (609).

7. The self-adjusting angle bending fixture for steel pipes used in wind turbine generator sets according to claim 1, characterized in that: The bending frame (1) is provided with a support slide (101), and a stabilizing slider (1201) is rotatably connected to the stabilizing rod (12). The stabilizing slider (1201) is embedded in the support slide (101) and slidably connected to the support slide (101). The stabilizing rod (12) is provided with a support foot (1202), and the support foot (1202) is rotatably connected to the stabilizing rod (12). The stabilizing rod (12) is provided with a locking bolt (1203), and the locking bolt (1203) is rotatably connected to the stabilizing rod (12). The locking bolt (1203) abuts against the support foot (1202).

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