Butterfly-shaped winding equipment and winding method

Abstract

The invention discloses butterfly-shaped winding equipment and a winding method, and relates to the technical field of magnetic ring coil winding, the butterfly-shaped winding equipment comprises a rack, a rotating disc rotationally arranged on the rack and a wire feeding frame arranged on the rack in a sliding mode, the rack is provided with a driving motor used for driving the rotating disc to rotate and a linear motor used for driving the wire feeding frame to slide, and the linear motor is used for driving the wire feeding frame to slide. The rotating disc is provided with a fixing assembly used for clamping a magnetic core ring, the wire feeding frame is provided with a wire unwinding mechanism used for unwinding a copper wire, the rotating disc is provided with a center hole, the rack is provided with a wire hooking mechanism used for guiding the copper wire to penetrate through the magnetic core ring, and the rack is further provided with a wire pulling mechanism used for clamping the copper wire below the magnetic core ring. And the copper wire is pulled to the upper part of the magnetic core ring along the outer side of the magnetic core ring. According to the butterfly coil winding device, automatic winding of the butterfly coil is achieved, the production efficiency and safety are remarkably improved, and the stability and accuracy of equipment operation are ensured.

Description

Technical Field

[0001] This application relates to the technical field of magnetic ring coil winding, and particularly to a butterfly winding device and a winding method. Background Art

[0002] In the field of production and processing of electronic components, as a key component, the manufacturing quality of coils directly affects the performance and reliability of electronic products. With the continuous enrichment of the types of electronic products and the growth of market demand, the requirements for coil winding technology are also increasing day by day.

[0003] Most traditional butterfly coils rely on manual winding, resulting in low production efficiency, inflexible winding methods, and low coil winding accuracy, which affect the performance and reliability of the final product. Although there are special winding devices for butterfly coils on the market, most of them still require manual assistance for operations such as fixing the magnetic core ring and threading the wire. Although the production efficiency can be improved to a certain extent, they still cannot completely get rid of manual intervention, and there are certain safety hazards during the manual operation process. Therefore, there is an urgent need for a butterfly winding device that can reduce manual intervention, improve winding efficiency and accuracy to solve the above problems. Summary of the Invention

[0004] In view of the problems existing in the prior art, this application provides a butterfly winding device and a winding method.

[0005] In the first aspect, a butterfly winding device provided by this application adopts the following technical solutions: A butterfly winding device includes a frame, a turntable rotatably arranged on the frame, and a wire feeding frame slidably arranged on the frame. A driving motor for driving the turntable to rotate and a linear motor for driving the wire feeding frame to slide are arranged on the frame. A fixing component for clamping the magnetic core ring is arranged on the turntable, and a wire unwinding mechanism for unwinding the copper wire is arranged on the wire feeding frame. A central hole is arranged on the turntable, and a wire hooking mechanism is arranged on the frame for guiding the copper wire through the magnetic core ring. A wire pulling mechanism is also arranged on the frame for clamping the copper wire below the magnetic core ring and pulling the copper wire along the outside of the magnetic core ring to the upper part of the magnetic core ring.

[0006] Optionally, the fixing component includes a first clamping frame, a second clamping frame, and a top push cylinder. The first clamping frame and the second clamping frame are slidably arranged on the turntable in a direction of approaching or separating from each other, and are symmetrically arranged on both sides of the central hole. There are two top push cylinders, which are respectively used to drive the first clamping frame and the second clamping frame to slide. Clamping blocks are arranged at the ends of the first clamping frame and the second clamping frame that approach each other, and clamping grooves adapted to the magnetic core ring to be clamped are arranged on the clamping blocks.

[0007] Optionally, the clamping block is rotatably arranged on the first clamping bracket or the second clamping bracket, and the rotation axes of the clamping blocks on the first clamping bracket and the second clamping bracket coincide. A servo motor for driving the corresponding clamping block to rotate is arranged on the first clamping bracket, and a return spring is arranged on the second clamping bracket, and the return spring is used for driving the corresponding clamping block to rotate.

[0008] Optionally, the wire paying-off mechanism includes a wire paying-off roller, a wire paying-off wheel and a driven wheel. The wire paying-off roller is rotatably arranged on the wire feeding frame, and a copper wire is wound around the wire paying-off roller. The wire paying-off wheel and the driven wheel are both rotatably arranged on the wire feeding frame, and the rotation axes of the wire paying-off wheel and the driven wheel are parallel. The copper wire passes between the wire paying-off wheel and the driven wheel.

[0009] Optionally, a slider is slidably arranged on the wire feeding frame in a direction close to or away from the wire paying-off wheel. The driven wheel is rotatably arranged on the slider. A compression spring for driving the driven wheel to slide in a direction close to the wire paying-off wheel is arranged on the wire feeding frame. A motor is also arranged on the wire feeding frame, and the output shaft of the motor is fixedly connected to the wire paying-off wheel coaxially.

[0010] Optionally, the wire hooking mechanism includes a wire hooking frame, a pull rod and a wire hooking cylinder. The wire hooking frame is slidably arranged on the machine frame along the axial direction of the turntable. The pull rod is fixedly arranged on the wire hooking frame, and the pull rod is used for passing through the central hole and the magnetic core ring. A wire hooking groove is arranged on the pull rod, and the wire hooking cylinder is used for driving the wire hooking frame to slide.

[0011] Optionally, the wire pulling mechanism includes a lifting rod, a traction rod, a clamping assembly, an electric push rod and a servo cylinder. The lifting rod is slidably arranged on the machine frame in the vertical direction. The traction rod is slidably arranged on the lifting rod in the horizontal direction. The clamping assembly is arranged on the traction rod and is used for clamping the copper wire. The electric push rod is used for driving the lifting rod to slide, and the servo cylinder is used for driving the traction rod to slide.

[0012] Optionally, the clamping assembly includes a first clamping arm, a second clamping arm, a two-way cylinder and a roller. The first clamping arm and the second clamping arm are slidably arranged on the traction rod in a direction close to or away from each other, and are symmetrically arranged on both sides of the traction rod. The two-way cylinder is used for driving the first clamping arm and the second clamping arm to slide in a direction close to or away from each other at the same time. Rollers are rotatably arranged at the ends of the first clamping arm and the second clamping arm that are close to each other, and the axial directions of the rollers on the first clamping arm and the second clamping arm are parallel.

[0013] Optionally, the roller on the first clamping arm is arranged on the side close to the magnetic core ring, and a torsion spring is arranged on the first clamping arm for driving the roller on the first clamping arm to rotate.

[0014] In a second aspect, the present application provides a winding method for a butterfly winding device, adopting the following technical solution: A winding method for a butterfly winding device, comprising the following steps: S1. Send the copper wire above the magnetic core ring through a wire feeding frame, and guide the copper wire through the magnetic core ring by a wire hooking mechanism, so that the free end of the copper wire is located below the magnetic core ring; S2. Clamp the free end of the copper wire below the magnetic core ring through a wire pulling mechanism and pull the copper wire along the outside of the magnetic core ring to above the magnetic core ring; S3. Guide the free end of the copper wire through the magnetic core ring again by the wire hooking mechanism, and at the same time, release the clamping of the copper wire by the wire pulling mechanism; S4. After each turn is wound, the turntable steps forward and rotates a certain angle; S5. Repeat steps S2 - S4 until the copper wire is evenly wound on the magnetic core ring.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application realizes the automatic winding of the butterfly coil. Specifically, through the coordinated action of the wire hooking mechanism and the wire pulling mechanism, the automatic threading and traction of the copper wire on the magnetic core ring are realized, and the copper wire is wound on the magnetic core ring, effectively simulating manual operation, simplifying the operation process, reducing the dependence on manual labor, and significantly improving production efficiency and safety. And through the cooperation of the turntable and the wire feeding frame, combined with the driving motor and the linear motor, the stability and accuracy of the equipment operation are ensured.

[0016] 2. The present application can realize the stable unwinding of the copper wire through the unwinding roller. The cooperation of the unwinding wheel and the driven wheel can guide the copper wire, thereby improving the winding quality; the slider and the compression spring are arranged on the wire feeding frame, which can keep the driven wheel in close contact with the unwinding wheel all the time, thereby effectively preventing the copper wire from loosening or jamming during the unwinding process and ensuring the smoothness of the unwinding process. At the same time, the setting of the motor can accurately control the unwinding amount of the copper wire and avoid waste of materials. Further, when the magnetic core ring is winding, by preventing the unwinding wheel from rotating through the motor, the tension of the copper wire can be effectively controlled, so that the copper wire is closely attached to the surface of the magnetic core ring, further improving the winding quality.

[0017] 3. The first clamping arm and the second clamping arm can approach or move away synchronously under the drive of the double-acting cylinder, so as to clamp the copper wire between the two rollers. During the process of pulling the copper wire from the bottom of the magnetic core ring to the top of the magnetic core ring, the copper wire bends along the surface of the roller. Due to the rigidity and toughness of the copper wire itself, a certain tension is formed on the copper wire, so that the copper wire is closely attached to the surface of the magnetic core ring, improving the winding quality. At the same time, the setting of the roller effectively avoids the wear of the copper wire surface and ensures the smooth movement of the copper wire during the traction process.

[0018] 4. The roller on the first clamping arm is arranged on the side close to the magnetic core ring. During the traction process of the copper wire, the copper wire is mainly bent along the surface of the roller on the first clamping arm. By arranging a torsion spring on the first clamping arm to drive the roller to rotate, a certain rotational resistance can be formed on the roller, thereby realizing the precise control of the surface tension of the copper wire and further improving the winding quality. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 is a cross-sectional view of the overall structure of an embodiment of the present application; Figure 3 is a schematic diagram of a partial structure of an embodiment of the present application; Figure 4 is a schematic diagram of the structure for expressing the wire feeding frame in an embodiment of the present application; Figure 5 is a schematic diagram of the structure for expressing the clamping assembly in an embodiment of the present application.

[0020] Description of the Reference Numerals: 1, frame; 11, cross beam; 12, drive motor; 121, transmission gear; 13, linear motor; 14, wire hooking cylinder; 15, electric push rod; 2, turntable; 21, toothed ring; 22, first clamping frame; 221, servo motor; 23, second clamping frame; 231, return spring; 24, top push cylinder; 25, clamping block; 251, clamping groove; 3, wire feeding frame; 31, wire unwinding roller; 32, wire unwinding wheel; 33, driven wheel; 34, motor; 35, fixed rod; 36, slider; 37, compression spring; 4, wire hooking frame; 41, pull rod; 411, wire hooking groove; 5, lifting rod; 51, traction rod; 52, servo cylinder; 53, guiding sleeve; 54, first clamping arm; 541, torsion spring; 55, second clamping arm; 56, double-acting cylinder; 57, roller. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached Figure 1 - attached Figure 5 , and the described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative labor, and these embodiments are also within the protection scope of the present invention.

[0022] The inventors of the present application have found that most traditional butterfly coils rely on manual winding, resulting in low production efficiency, inflexible winding methods, and low winding accuracy of the coils, which affect the performance and reliability of the final product. Although there are winding devices specifically for butterfly coils on the market, most still require manual assistance for processes such as fixing the magnetic core ring and threading the wire. Although the production efficiency can be improved to a certain extent, it is still impossible to completely get rid of manual intervention, and there are certain safety hazards during the manual operation process. For this reason, the present application discloses a butterfly winding device and a winding method, mainly adopting the following solutions: An embodiment of the present application discloses a butterfly winding device. Refer to Figure 1 , which includes a frame 1, a turntable 2, and a wire feeding frame 3. Among them, the turntable 2 is rotatably arranged on the frame 1, and a fixing component for clamping the magnetic core ring is arranged on the turntable 2. A cross beam 11 is fixedly arranged on the frame 1. The cross beam 11 is horizontally arranged, and the wire feeding frame 3 is slidably arranged on the cross beam 11 along the length direction of the cross beam 11. A wire releasing mechanism for unwinding the copper wire is arranged on the wire feeding frame 3. A central hole is arranged on the turntable 2, and a wire hooking mechanism is arranged on the frame 1 for guiding the copper wire through the magnetic core ring. A wire pulling mechanism is also arranged on the frame 1 for clamping the copper wire below the magnetic core ring and pulling the copper wire along the outer side of the magnetic core ring to the upper side of the magnetic core ring, achieving the effects of reducing manual intervention, improving winding efficiency and accuracy.

[0023] Refer to Figure 2 , a driving motor 12 for driving the turntable 2 to rotate is arranged on the frame 1; specifically, the driving motor 12 is fixedly arranged on the frame 1, a transmission gear 121 is coaxially and fixedly arranged on the output shaft of the driving motor 12, a toothed ring 21 is coaxially and fixedly arranged on the turntable 2, and the transmission gear 121 meshes with the toothed ring 21. A linear motor 13 is fixedly arranged on the cross beam 11, and the linear motor 13 is connected to the wire feeding frame 3 for driving the wire feeding frame 3 to slide.

[0024] Refer to Figure 2 , specifically, the fixing component includes a first clamping frame 22, a second clamping frame 23, and a pushing cylinder 24. The first clamping frame 22 and the second clamping frame 23 are slidably arranged on the turntable 2 along the direction of approaching or separating from each other, and are symmetrically arranged on both sides of the central hole. There are two pushing cylinders 24, and both pushing cylinders 24 are installed on the turntable 2. One of the pushing cylinders 24 is used to drive the first clamping frame 22 to slide, and the other pushing cylinder 24 is used to drive the second clamping frame 23 to slide.

[0025] Refer to Figure 2 、 3, at the ends of the first clamping bracket 22 and the second clamping bracket 23 that are close to each other, clamping blocks 25 are rotatably arranged, and the rotation axes of the clamping blocks 25 on the first clamping bracket 22 and the second clamping bracket 23 coincide. At the ends of the two clamping blocks 25 that are close to each other, clamping grooves 251 adapted to the magnetic core ring to be clamped are provided. A servo motor 221 is installed on the first clamping bracket 22 for driving the corresponding clamping block 25 to rotate. A return spring 231 is arranged on the second clamping bracket 23. The return spring 231 is sleeved on the rotation axis of the clamping block 25 on the second clamping bracket 23, and the two ends of the return spring 231 are respectively connected to the second clamping bracket 23 and the corresponding clamping block 25, and are used for driving the corresponding clamping block 25 to rotate and reset.

[0026] Referring to Figure 4 , the wire pay-off mechanism includes a wire pay-off roller 31, a wire pay-off wheel 32 and a driven wheel 33. The wire pay-off roller 31 is rotatably arranged on the wire feeding frame 3, and a copper wire is wound around the wire pay-off roller 31. The wire pay-off wheel 32 and the driven wheel 33 are both rotatably arranged on the wire feeding frame 3, and the rotation axes of the wire pay-off wheel 32 and the driven wheel 33 are parallel. The copper wire passes between the wire pay-off wheel 32 and the driven wheel 33. A motor 34 is fixedly arranged on the wire feeding frame 3, and the output shaft of the motor 34 is fixedly connected to the wire pay-off wheel 32 coaxially. The stable unwinding of the copper wire can be realized through the wire pay-off roller 31. The combined use of the wire pay-off wheel 32 and the driven wheel 33 can guide the copper wire, thereby improving the quality of winding; and the setting of the motor 34 can accurately control the wire pay-off amount of the copper wire, avoiding waste of materials. Further, when the magnetic core ring is being wound, by preventing the wire pay-off wheel 32 from rotating through the motor 34, the tension of the copper wire can be effectively controlled, so that the copper wire is closely attached to the surface of the magnetic core ring, improving the winding quality.

[0027] Referring to Figure 4 , a fixed rod 35 is fixedly arranged on the wire feeding frame 3. A receiving groove is formed at the end of the fixed rod 35. A slider 36 is slidably arranged in the receiving groove along the direction of approaching or departing from the wire pay-off wheel 32, and the sliding direction of the slider 36 is perpendicular to the central axis of the wire pay-off wheel 32. The driven wheel 33 is rotatably arranged on the slider 36. A compression spring 37 is arranged in the receiving groove for driving the driven wheel 33 to slide towards the wire pay-off wheel 32. The design of the slider 36 and the compression spring 37 ensures that the driven wheel 33 is always in close contact with the wire pay-off wheel 32, thereby effectively preventing the copper wire from loosening or jamming during the unwinding process and ensuring the smoothness of the wire pay-off process.

[0028] Referring to Figure 2 、 3, the wire-hooking mechanism includes a wire-hooking frame 4, a pull rod 41, and a wire-hooking cylinder 14. The wire-hooking frame 4 is slidably arranged on the frame 1 along the axial direction of the turntable 2. The pull rod 41 is fixedly arranged on the wire-hooking frame 4, and the length direction of the pull rod 41 is vertical and is used to pass through the central hole and the magnetic core ring. A wire-hooking groove 411 is arranged at the top end of the pull rod 41. The wire-hooking cylinder 14 is fixedly arranged on the frame 1 and is used to drive the wire-hooking frame 4 to slide. Specifically, the wire-hooking cylinder 14 is a rodless cylinder. The wire-hooking mechanism can accurately control the position of the pull rod 41 to ensure that the pull rod 41 passes through the magnetic core ring. The wire-hooking groove 411 on the pull rod 41 can effectively capture and hook the copper wire. As the pull rod 41 slides down, it guides the free end of the copper wire to pass through the magnetic core ring, preventing the copper wire from shifting or falling off during the perforation process.

[0029] Referring to Figure 1 , 3 , the wire-pulling mechanism includes a lifting rod 5, a traction rod 51, a clamping assembly, an electric push rod 15, and a servo cylinder 52. The lifting rod 5 is slidably arranged on the frame 1 in the vertical direction. The electric push rod 15 is fixedly arranged on the frame 1 and is used to drive the lifting rod 5 to slide. A guiding sleeve 53 is fixedly arranged on the lifting rod 5. The guiding sleeve 53 is horizontally arranged, and one end of the traction rod 51 is slidably inserted into the guiding sleeve 53. The servo cylinder 52 is fixedly arranged on the lifting rod 5 and is used to drive the traction rod 51 to slide. The clamping assembly is arranged on the traction rod 51 and is used to clamp the copper wire. The lifting rod 5 is slidably arranged on the frame 1 in the vertical direction, which can adjust the height position of the lifting rod 5. Then, in cooperation with the horizontal sliding of the traction rod 51, it ensures that the clamping assembly can accurately reach the position where the copper wire is located and clamp the copper wire. After that, in cooperation with the horizontal sliding of the traction rod 51 and the vertical sliding of the lifting rod 5, the copper wire is pulled to the upper side of the magnetic core ring along the outer side of the magnetic core ring.

[0030] Referring to Figure 3 , 5, Specifically, the clamping assembly includes a first clamping arm 54, a second clamping arm 55, a double-acting cylinder 56 and a roller 57. The first clamping arm 54 and the second clamping arm 55 are slidably arranged on the traction rod 51 in a direction of approaching or separating from each other, and are symmetrically arranged on both sides of the traction rod 51. The double-acting cylinder 56 is installed on the traction rod 51, and the piston rods of the double-acting cylinder 56 are respectively fixedly connected to the first clamping arm 54 and the second clamping arm 55, and are used to drive the first clamping arm 54 and the second clamping arm 55 to slide simultaneously in a direction of approaching or separating from each other. Rotating rollers 57 are respectively arranged at the ends of the first clamping arm 54 and the second clamping arm 55 that approach each other, and the axial directions of the rollers 57 on the first clamping arm 54 and the second clamping arm 55 are parallel. The first clamping arm 54 and the second clamping arm 55 can approach or separate synchronously under the drive of the double-acting cylinder 56, so as to clamp the copper wire between the two rollers 57. During the process of pulling the bottom of the copper wire with a magnetic core ring to the top of the magnetic core ring, the copper wire bends along the surface of the roller 57. Due to the rigidity and toughness of the copper wire itself, a certain tension is formed on the copper wire, so that the copper wire is closely attached to the surface of the magnetic core ring, improving the winding quality. At the same time, the setting of the roller 57 effectively avoids the wear on the surface of the copper wire and ensures the smooth movement of the copper wire during the traction process.

[0031] Referring to Figure 5 , Further, the roller 57 on the first clamping arm 54 is arranged on the side close to the magnetic core ring. A torsion spring 541 is arranged on the first clamping arm 54. The torsion spring 541 is sleeved on the rotating shaft of the roller 57 on the first clamping arm 54 and is used to drive the roller 57 on the first clamping arm 54 to rotate and reset. The design of the torsion spring 541 can form a certain rotational resistance on the roller 57, so as to realize the precise control of the surface tension of the copper wire and avoid the situation that the tension of the copper wire is too small, resulting in the copper wire not being able to closely adhere to the surface of the magnetic core ring.

[0032] The implementation principle of a butterfly winding device according to an embodiment of the present application is as follows: Through the collaborative action of the wire-hooking mechanism and the wire-pulling mechanism, the automatic threading and traction of the copper wire on the magnetic core ring are realized, and the copper wire is wound on the magnetic core ring, realizing the automatic winding of the butterfly coil, effectively simulating manual work, simplifying the operation process, reducing the dependence on manual labor, and significantly improving the production efficiency and safety. And through the cooperation of the turntable 2 and the wire-feeding frame 3, combined with the driving motor 12 and the linear motor 13, the stability and accuracy of the equipment operation are ensured.

[0033] An embodiment of the present application also discloses a winding method of a butterfly winding device, including the following steps: S1. Send the copper wire to above the magnetic core ring through the wire-feeding frame 3, and guide the copper wire to pass through the magnetic core ring through the wire-hooking mechanism, so that the free end of the copper wire is located below the magnetic core ring; S2. Clamp the free end of the copper wire below the magnetic core ring through the wire-pulling mechanism and pull the copper wire along the outside of the magnetic core ring to above the magnetic core ring; S3. Guide the free end of the copper wire through the magnetic core ring again through the wire tracing mechanism. At the same time, release the clamping of the copper wire by the wire pulling mechanism; S4. After each turn is wound, the turntable 2 steps forward and rotates a certain angle; S5. Repeat steps S2 - S4 until the copper wire is evenly wound on the magnetic core ring.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A butterfly winding device, characterized in that: It includes a frame (1), a turntable (2) rotatably arranged on the frame (1), and a wire feeding frame (3) slidably arranged on the frame (1). A driving motor (12) for driving the turntable (2) to rotate and a linear motor (13) for driving the wire feeding frame (3) to slide are arranged on the frame (1). A fixing assembly for clamping the magnetic core ring is arranged on the turntable (2), and a wire paying-off mechanism for unwinding the copper wire is arranged on the wire feeding frame (3). A central hole is arranged on the turntable (2), and a wire guiding mechanism is arranged on the frame (1) for guiding the copper wire through the magnetic core ring. A wire pulling mechanism is also arranged on the frame (1) for clamping the copper wire below the magnetic core ring and pulling the copper wire along the outer side of the magnetic core ring to the upper side of the magnetic core ring.

2. The butterfly winding device according to claim 1, characterized in that: The fixing assembly includes a first clamping frame (22), a second clamping frame (23) and a pushing cylinder (24). The first clamping frame (22) and the second clamping frame (23) are slidably arranged on the turntable (2) in a direction of approaching or separating from each other, and are symmetrically arranged on both sides of the central hole. There are two pushing cylinders (24), which are respectively used to drive the first clamping frame (22) and the second clamping frame (23) to slide. Clamping blocks (25) are arranged at the ends of the first clamping frame (22) and the second clamping frame (23) that approach each other. The clamping blocks (25) are provided with clamping grooves (251) adapted to the magnetic core ring to be clamped.

3. A butterfly winding device according to claim 2, characterized in that: The clamping blocks (25) are rotatably arranged on the first clamping frame (22) or the second clamping frame (23), and the rotation axes of the clamping blocks (25) on the first clamping frame (22) and the second clamping frame (23) coincide. A servo motor (221) for driving the corresponding clamping block (25) to rotate is arranged on the first clamping frame (22), and a return spring (231) is arranged on the second clamping frame (23), and the return spring (231) is used to drive the corresponding clamping block (25) to rotate.

4. A butterfly winding device according to claim 1, characterized in that: The wire paying-off mechanism includes a wire paying-off roller (31), a wire paying-off wheel (32) and a driven wheel (33). The wire paying-off roller (31) is rotatably arranged on the wire feeding frame (3), and the copper wire is wound around the wire paying-off roller (31). The wire paying-off wheel (32) and the driven wheel (33) are both rotatably arranged on the wire feeding frame (3), and the rotation axes of the wire paying-off wheel (32) and the driven wheel (33) are parallel. The copper wire passes between the wire paying-off wheel (32) and the driven wheel (33).

5. The butterfly winding device according to claim 4, characterized in that: A slider (36) is slidably arranged on the wire feeding frame (3) in a direction of approaching or separating from the wire paying-off wheel (32). The driven wheel (33) is rotatably arranged on the slider (36). A compression spring (37) for driving the driven wheel (33) to slide in a direction approaching the wire paying-off wheel (32) is arranged on the wire feeding frame (3). A motor (34) is also arranged on the wire feeding frame (3), and the output shaft of the motor (34) is fixedly connected coaxially with the wire paying-off wheel (32).

6. The butterfly winding device according to claim 1, characterized in that: The thread hooking mechanism includes a thread hooking frame (4), a pull rod (41) and a thread hooking cylinder (14). The thread hooking frame (4) is slidably arranged on the machine frame (1) along the axial direction of the turntable (2). The pull rod (41) is fixedly arranged on the thread hooking frame (4), and the pull rod (41) is used to pass through the central hole and the magnetic core ring. A thread hooking groove (411) is arranged on the pull rod (41), and the thread hooking cylinder (14) is used to drive the thread hooking frame (4) to slide.

7. The butterfly winding device according to claim 6, wherein: The wire pulling mechanism includes a lifting rod (5), a traction rod (51), a clamping assembly, an electric push rod (15) and a servo cylinder (52). The lifting rod (5) is slidably arranged on the machine frame (1) in the vertical direction. The traction rod (51) is slidably arranged on the lifting rod (5) in the horizontal direction. The clamping assembly is arranged on the traction rod (51) and is used to clamp the copper wire. The electric push rod (15) is used to drive the lifting rod (5) to slide, and the servo cylinder (52) is used to drive the traction rod (51) to slide.

8. A butterfly winding device according to claim 7, characterized in that: The clamping assembly includes a first clamping arm (54), a second clamping arm (55), a double-acting cylinder (56) and a roller (57). The first clamping arm (54) and the second clamping arm (55) are slidably arranged on the traction rod (51) in the direction of approaching or separating from each other, and are symmetrically arranged on both sides of the traction rod (51). The double-acting cylinder (56) is used to drive the first clamping arm (54) and the second clamping arm (55) to slide simultaneously in the direction of approaching or separating from each other. The rollers (57) are rotatably arranged at the ends of the first clamping arm (54) and the second clamping arm (55) that approach each other, and the axial directions of the rollers (57) on the first clamping arm (54) and the second clamping arm (55) are parallel.

9. A butterfly winding device according to claim 8, characterized in that: The roller (57) on the first clamping arm (54) is arranged on the side close to the magnetic core ring, and a torsion spring (541) is arranged on the first clamping arm (54) to drive the roller (57) on the first clamping arm (54) to rotate.

10. A winding method for a butterfly winding device according to any one of claims 1-9, characterized in that, It includes the following steps: S1. Send the copper wire above the magnetic core ring through the wire feeding frame (3), and guide the copper wire through the magnetic core ring by the thread hooking mechanism, so that the free end of the copper wire is located below the magnetic core ring. S2. Clamp the free end of the copper wire below the magnetic core ring through the wire pulling mechanism and pull the copper wire along the outer side of the magnetic core ring to above the magnetic core ring. S3. Guide the free end of the copper wire through the magnetic core ring again by the thread hooking mechanism, and at the same time, release the clamping of the copper wire by the wire pulling mechanism. S4. After each turn is wound, the turntable (2) steps and rotates a certain angle. S5. Repeat steps S2 - S4 until the copper wire is evenly wound on the magnetic core ring.

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