A stator coil winding device for an automobile generator

Abstract

This invention belongs to the technical field of winding machines, specifically a winding device for stator coils of an automotive generator, including a workbench; a support plate is fixedly connected to the top surface of the workbench; a rotating seat is rotatably connected to the surface of the support plate; a fixed arm is rotatably connected to the end face of the rotating seat; a fixing component is installed between the fixed arm and the workbench; a stop plate is slidably connected to the end of the fixed arm away from the fixing component via an elastic component; a feeding component is used to transfer the stator. Through the plug-in / plug-out arrangement between the winding arm and the insertion port, the user can move the winding arm to be threaded with copper wire to the outside of this embodiment, providing the user with more operating space and facilitating the threading operation. Simultaneously, the user can prepare multiple winding arms and pre-thread copper wire, so that when the copper wire is used up, the previously threaded winding arm can be directly replaced with the winding arm on the rotating seat, thereby improving replacement efficiency.

Description

Technical Field

[0001] This invention belongs to the field of winding machine technology, specifically a winding device for stator coils of an automobile generator. Background Technology

[0002] As the core component of a vehicle's electrical system, the automotive alternator mainly consists of a housing, a stator, and a winding machine. The rotating stator cuts magnetic field lines to generate alternating current in the stator coils. To ensure the working efficiency of the stator coils, the stator coils need to be wound by a winding machine.

[0003] There are various types of winding machines in the existing technology. Among them, the flying fork winding machine realizes coil winding through the rotational motion of the flying fork mechanism. During operation, the copper wire is led out from the spool, and after passing through the tension control device, it is fixed on the stator. Then the flying fork mechanism rotates at high speed, driving the copper wire to be precisely wound on the stator according to the preset path.

[0004] In the existing technology of flying fork winding machines, copper wire needs to be passed through the tension device in its flying fork mechanism before the subsequent winding operation can be carried out. However, due to the size limitations of the flying fork winding machine and the obstruction of its internal components, this wire-passing step is extremely inconvenient, which in turn affects production efficiency.

[0005] Therefore, the present invention provides a stator coil winding device for an automotive generator. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: An automotive generator stator coil winding device of this invention includes a workbench; a support plate is fixedly connected to the top surface of the workbench; a rotating seat is rotatably connected to the surface of the support plate, and the rotating seat is driven by a servo motor; a fixed arm is rotatably connected to the end face of the rotating seat, and a pulley system is installed inside the support arm; a fixing component is installed between the fixed arm and the workbench; the fixing component is used to lock the fixed arm to prevent it from rotating with the rotating seat; a stop plate is slidably connected to the end of the fixed arm away from the fixing component via an elastic component; a pair of symmetrically arranged insertion ports are opened on the surface of the rotating seat; a winding arm is inserted into both insertion ports; the winding arm is U-shaped, including two horizontal arms and one vertical arm; a guide tube and a counterweight tube are fixedly connected to both ends of the winding arm respectively; a robotic arm is installed on the side of the top surface of the workbench away from the fixing component; the robotic arm is used to pull and cut the wire at the guide tube; a feeding component is installed on the side of the top surface of the workbench near the robotic arm; the feeding component is used to transfer the stator.

[0008] Preferably, the fixing component includes an upper magnet post and a lower magnet post; the upper magnet post is fixedly connected to the end of the fixing arm away from the robot arm; the lower magnet post is fixedly connected to the top surface of the worktable and located at the bottom of the lower magnet post; a reflective sticker is fixedly connected to the surface of the winding arm at the corresponding position of the lower magnet post; and a photoelectric speed sensor is embedded in the top surface of the lower magnet post.

[0009] Preferably, a pair of clamping arms are rotatably connected to the end of the conduit away from the winding arm; an elastic band is rotatably connected between the two clamping arms; a squeezing roller is rotatably connected to the end of the two clamping arms away from the conduit; and a pair of levers are fixedly connected to the end of each clamping arm away from the squeezing roller.

[0010] Preferably, a connecting rod is rotatably connected between the pairs of dial plates; two pairs of symmetrically arranged limiting blocks are fixedly connected to the inner wall of the socket; one pair of limiting blocks is fixedly connected to a top plate at the end away from the robotic arm; a slot is opened on the surface of the winding arm near the guide tube at the corresponding position of the top plate; a pressure plate is provided in the slot; a pull rope is installed between the pressure plate and the connecting rod, and the pull rope passes through the winding arm; a spring is fixedly connected between the pressure plate and the inner wall of the slot.

[0011] Preferably, a limiting hole is provided at the bottom of the slot; a limiting rod is fixedly connected to the side of the pressure plate near the limiting hole; the limiting rod is slidably connected to the limiting hole; and a sliding rod is fixedly connected between the pull rope and the pressure plate.

[0012] Preferably, the two horizontal arms of the winding arm are provided with grooves on the sides that are close to each other; a stop block is slidably connected in the groove, and the stop block is wedge-shaped; a spring is fixedly connected between the stop block and the groove.

[0013] Preferably, a through groove is formed on the side surface of the fixed arm; both ends of the through groove are slidably connected to abutment rods; a double-threaded screw is rotatably connected inside the through groove, and the two abutment rods are respectively threaded to both ends of the double-threaded screw; an adjusting rod is rotatably connected to the surface of the fixed arm; the adjusting rod and the double-threaded screw are connected by a gear set.

[0014] Preferably, the feeding assembly includes a movable seat; the movable seat is slidably connected to the top surface of the worktable and is driven by a servo motor; a connecting seat is rotatably connected to the top surface of the movable seat; a fixing rod is installed on the top surface of the connecting seat; the fixing rod is a hollow structure and is connected to an external air pump through an air pipe; a plurality of uniformly arranged extrusion rods are slidably connected to the surface of the fixing rod.

[0015] Preferably, a pair of symmetrically arranged rotating rods are fixedly connected to the bottom of the fixed rod; the rotating rods are rotatably connected to the connecting seat; a gear is fixedly connected to the end of each rotating rod away from the fixed rod; a pair of toothed plates are fixedly connected to the top surface of the workbench on the side away from the support plate, and the toothed plates can mesh with the gears; a conveyor belt is installed on the top surface of the workbench, and the conveyor belt is located on the side of the toothed plates away from the support plate.

[0016] Preferably, a baffle is rotatably connected to one end of the movable seat near the support plate, and a torsion spring is installed at the rotatable connection between the baffle and the movable seat; a magnet is fixedly connected to the top of the baffle; and a metal ring is fixedly connected to the surface of the fixing rod at the corresponding position of the magnet, and the metal ring is made of magnetizable metal.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The stator coil winding device for an automotive generator described in this invention, through the plug-in arrangement between the winding arm and the socket, allows the user to move the winding arm to be threaded with copper wire to the outside of the embodiment of this invention, thereby providing the user with more operating space and facilitating the threading operation. At the same time, the user can also prepare multiple winding arms and pre-thread copper wire, so that when the copper wire is used up, the previously threaded winding arm can be directly replaced with the winding arm on the rotating seat, thereby improving the replacement efficiency.

[0019] 2. The stator coil winding device for an automotive generator described in this invention, driven by an adjusting rod, allows the abutment rod to simultaneously press against the abutment block, enabling faster release of the locking mechanism on the winding arm and facilitating disassembly of the winding arm. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a partial sectional view of the workbench in this invention;

[0023] Figure 3 This is a schematic diagram of the assembly of the winding arm and the rotating seat in this invention;

[0024] Figure 4 This is a schematic diagram of the winding arm in this invention;

[0025] Figure 5 This is a schematic diagram of the catheter structure in this invention;

[0026] Figure 6 This is a schematic diagram of the clamping arm in this invention;

[0027] Figure 7 This is a partial sectional view of the rotating seat in this invention;

[0028] Figure 8 This is a partial cross-sectional view of the winding arm in this invention;

[0029] Figure 9 This is a front view of the slot in this invention;

[0030] Figure 10 This is a partial sectional view of the fixed arm in this invention;

[0031] Figure 11 This is a schematic diagram of the structure of the fixing rod in this invention;

[0032] In the diagram: 1. Workbench; 2. Support plate; 3. Rotating seat; 4. Fixed arm; 5. Support plate; 6. Socket; 601. Winding arm; 7. Conduit; 8. Counterweight tube; 9. Robotic arm; 10. Upper magnet column; 11. Lower magnet column; 12. Reflective sticker; 13. Photoelectric speed sensor; 14. Clamping arm; 15. Elastic band; 16. Squeezing roller; 17. Paddle plate; 18. Connecting rod; 19. Limiting block; 20. Top plate; 21. Slot; 22. Pressure plate; 23. Pull rope; 24. Spring 1; 25. Limiting hole; 26. Limiting rod; 27. Sliding rod; 28. Groove; 29. ​​Abutment block; 30. Spring 2; 31. Through groove; 32. Abutment rod; 33. Double threaded screw; 34. Adjusting rod; 35. Moving seat; 36. Connecting seat; 37. Fixing rod; 38. Pressing rod; 39. Rotating rod; 40. Gear; 41. Tooth plate; 42. Conveyor belt; 43. Baffle; 44. Magnet block; 45. Metal ring. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figure 1 , Figure 4 and Figure 8As shown in the embodiment of the present invention, a stator coil winding device for an automotive generator includes a workbench 1; a support plate 2 is fixedly connected to the top surface of the workbench 1; a rotating seat 3 is rotatably connected to the surface of the support plate 2, and the rotating seat 3 is driven by a servo motor; a fixed arm 4 is rotatably connected to the end face of the rotating seat 3, and a pulley system is installed inside the support arm; a fixing component is installed between the fixed arm 4 and the workbench 1; the fixing component is used to lock the fixed arm 4 to prevent it from rotating with the rotating seat 3; a stop plate 5 is slidably connected to the end of the fixed arm 4 away from the fixing component through an elastic component; a pair of symmetrically arranged insertion slots are opened on the surface of the rotating seat 3. 6; A winding arm 601 is inserted into both of the two sockets 6; the winding arm 601 is U-shaped and includes two horizontal arms and one vertical arm; a guide tube 7 and a counterweight tube 8 are fixedly connected to both ends of the winding arm 601 respectively; a mechanical arm 9 is installed on the side of the top surface of the workbench 1 away from the fixed assembly; the mechanical arm 9 is used to pull and cut the wire at the guide tube 7; a feeding assembly is installed on the side of the top surface of the workbench 1 near the mechanical arm 9; the feeding assembly is used to transfer the stator; during operation, in order to reduce the difficulty for the user to replace the copper wire of the winding machine, the embodiment of the present invention can be used. First, the user removes the fixed arm 4 from the surface of the rotating seat 3. The copper wire is pulled out from the socket 6 on the surface of the rotating seat 3 and taken to the outside of the embodiment of the invention. Then, the user can pass the copper wire to be used through the pulley block and then through the guide tube 7. After that, the user can reinsert the fixed arm 4 with the wire inserted into the socket 6 on the surface of the rotating seat 3, and then fix the wire at the guide tube 7 to the mechanical arm 9. Then, the feeding assembly presses the teeth of the stator against the abutment plate 5 at the end of the fixed arm 4. Then the rotating seat 3 rotates, thereby driving the winding arm 601 to rotate, so that the copper wire is wound on the teeth on the surface of the stator. During the rotation of the winding arm 601 driven by the rotating seat 3, the setting of the counterweight tube 8 and the winding tube makes the two sides of the winding arm 601 rotate. The weight balance at both ends reduces the vibration of the winding arm 601. After all the teeth on the stator surface are wound with copper wire, the robotic arm 9 cuts the copper wire, thus completing the winding operation of the stator. Through the plug-in setting between the winding arm 601 and the socket 6, the user can take the winding arm 601 to be threaded with copper wire to the outside of the embodiment of the invention, so that the user has more operating space and can facilitate the user to perform the threading operation. At the same time, the user can also prepare multiple winding arms 601 and thread copper wire in advance, so that when the copper wire is used up, the winding arm 601 with copper wire threaded in advance can be directly replaced with the winding arm 601 on the rotating seat 3, thereby improving the replacement efficiency.

[0035] like Figures 2 to 3As shown, the fixing assembly includes an upper magnetic post 10 and a lower magnetic post 11; the attractive force between the magnetic post 10 and the lower magnetic post 11 is greater than the frictional force between the rotating seat 3 and the fixed arm 4; the upper magnetic post 10 is fixedly connected to the end of the fixed arm 4 away from the robotic arm 9; the lower magnetic post 11 is fixedly connected to the top surface of the worktable 1 and located at the bottom of the lower magnetic post 11; a reflective sticker 12 is fixedly connected to the surface of the winding arm 601 at the corresponding position of the lower magnetic post 11; a photoelectric speed sensor 13 is embedded in the top surface of the lower magnetic post 11; during operation, when the rotating seat 3 rotates, Because the upper magnet post 10 at the end of the fixed arm 4 attracts the lower magnet post 11 on the top surface of the workbench 1, the fixed arm 4 will not rotate with the rotating seat 3, thus ensuring that the abutment plate 5 at the end of the fixed arm 4 can properly abut against the teeth of the stator. At the same time, when the winding arm 601 rotates, the reflective sticker on its surface will continuously pass through the photoelectric speed sensor 13 on the top surface of the lower magnet post 11, thereby enabling the photoelectric speed sensor 13 to detect the number of rotations and speed of the winding arm 601, thus facilitating the user to adjust the speed of the rotating seat 3, thereby making the copper wire on the surface of the stator more evenly wound.

[0036] like Figures 4 to 5 As shown, a pair of clamping arms 14 are rotatably connected to the end of the conduit 7 away from the winding arm 601; an elastic band 15 is rotatably connected between the two clamping arms 14; a squeezing roller 16 is rotatably connected to the end of the two clamping arms 14 away from the conduit 7; a pair of levers 17 are fixedly connected to the end of each clamping arm 14 away from the squeezing roller 16; during operation, after the user passes the copper wire through the winding arm 601, the user needs to pinch the two pairs of levers 17, so that the levers 17 drive the two clamping arms 14 to rotate in a direction away from each other, thereby causing the ends of the clamping arms 14 to... The squeezing rollers 16 no longer squeeze together and stretch the elastic band 15 so that the copper wire can pass smoothly through the conduit 7. After the copper wire passes through the conduit 7, the user releases the lever 17, and the stretched elastic band 15 returns to its original position, thereby driving the two squeezing rollers 16 to clamp the copper wire and fix its position. This makes it convenient for the user to store the winding arm 601 with the copper wire threaded on it, preventing the copper wire from falling into the conduit 7 during storage due to lack of fixation. It also fixes the wire group composed of multiple copper wires and prevents the copper wires at the ends from scattering.

[0037] like Figure 5As shown, a connecting rod 18 is rotatably connected between the pairs of dial plates 17; two pairs of symmetrically arranged limiting blocks 19 are fixedly connected to the inner wall of the socket 6; one pair of limiting blocks 19 has a top plate 20 fixedly connected to its end away from the robotic arm 9; a slot 21 is opened on the surface of the winding arm 601 near the guide tube 7 at the corresponding position of the top plate 20; a pressure plate 22 is provided in the slot 21; a pull rope 23 is installed between the pressure plate 22 and the connecting rod 18, and the pull rope 23 passes through the winding arm 601; a spring 24 is fixedly connected between the pressure plate 22 and the inner wall of the slot 21; during operation, when the user inserts the winding arm 601 into the socket 6, the user needs to face the end of the winding arm 601 with the slot 21 toward the socket 6 containing the top plate 20, and then insert the winding arm 601 into the socket. In step 6, the top plate 20 on the surface of the limiting block 19 is inserted into the slot 21 on the surface of the winding arm 601, thereby squeezing the pressure plate 22 in the slot 21 and stretching the spring 24. This causes the pressure plate 22 to pull the connecting rod 18 through the pull rope 23, and then the connecting rod 18 drives the turn plate 17 and the clamping arm 14 to rotate, so that the two clamping arms 14 move away from each other. This prevents the copper wire from being clamped by the squeezing roller 16 when the winding arm 601 is winding, which would cause the copper wire to be difficult to wind. At the same time, since the squeezing roller and the elastic band are rotatably connected, the copper wire will only contact the squeezing roller and the elastic band during the winding process, thereby avoiding contact with the edge of the guide tube. The rotation of the squeezing roller and the elastic band reduces the probability of the outer insulating varnish peeling off due to friction when the copper wire is winding.

[0038] like Figure 4 , Figure 6 and Figure 7 As shown, the bottom of the slot 21 has a limiting hole 25; the side of the pressure plate 22 near the limiting hole 25 is fixedly connected to a limiting rod 26; the limiting rod 26 is slidably connected to the limiting hole 25; a sliding rod 27 is fixedly connected between the pull rope 23 and the pressure plate 22; during operation, when the top plate 20 presses the pressure plate 22, the limiting rod 26 will cooperate with the limiting hole 25 to restrict the movement of the pressure plate 22 and prevent it from tilting. At the same time, the sliding rod 27 can also restrict the pressure plate 22, thereby preventing the pressure plate 22 from deflecting in the slot 21, which would cause the pull rope 23 to fail to pull the lever plate 17 correctly.

[0039] like Figure 7As shown, the winding arm 601 has grooves 28 on the sides of its two horizontal arms that are close to each other; a stop block 29 is slidably connected in the groove 28, and the stop block 29 is wedge-shaped; a spring 30 is fixedly connected between the stop block 29 and the groove 28; during operation, when the user inserts the winding arm 601 into the socket 6, the stop block 29 at the groove 28 will be obstructed by the inner wall of the socket 6, causing the stop block 29 to be pressed into the socket 6 and compressing the spring 30, and when the limit is reached... After block 19 abuts against the winding arm 601, block 29 is just outside the rotating seat 3. At this time, the compressed spring 30 rebounds and pushes block 29 out of the groove 28. At this time, one side of block 29 will fit against the surface of the rotating seat 3, thereby cooperating with limit block 19 and block 29 to clamp the winding arm 601, thereby locking the winding arm 601 and preventing the winding arm 601 from coming out of the insertion port 6 when the rotating seat 3 drives the winding arm 601 to rotate.

[0040] like Figure 8 As shown, a through groove 31 is provided on the side surface of the fixed arm 4; both ends of the through groove 31 are slidably connected to abutment rods 32; a double-threaded screw 33 is rotatably connected inside the through groove 31, and the two abutment rods 32 are respectively threaded to both ends of the double-threaded screw 33; an adjusting rod 34 is rotatably connected to the surface of the fixed arm 4; the adjusting rod 34 and the double-threaded screw 33 are connected by a gear set 40; during operation, when the user needs to release the lock on the winding arm 601, the user needs to rotate the rotating seat 3 so that the abutment block 29 on the surface of the abutment rod 32 is aligned with the abutment rod 32, and then use... Then, the adjusting rod 34 is rotated, which drives the double-threaded screw 33 to rotate. The double-threaded screw 33 then drives the abutment 32 in the through groove 31 to slide outward along the through groove 31. This allows the abutment 32 to press the abutment block 29 in the groove 28 of the winding arm 601, so that the abutment block 29 is pressed into the groove 28 and the spring 2 30 is compressed. At this time, the user can pull the winding arm 601 out from the insertion port 6. Driven by the adjusting rod 34, the abutment 32 simultaneously presses the abutment block 29, which can release the lock on the winding arm 601 more quickly, making it easier to disassemble the winding arm 601.

[0041] like Figure 1 and Figure 9As shown, the feeding assembly includes a movable seat 35; the movable seat 35 is slidably connected to the top surface of the workbench 1 and is driven by a servo motor; a connecting seat 36 is rotatably connected to the top surface of the movable seat 35; a fixing rod 37 is mounted on the top surface of the connecting seat 36; the fixing rod 37 is a hollow structure and is connected to an external air pump through an air pipe; a plurality of evenly arranged pressing rods 38 are slidably connected to the surface of the fixing rod 37; during operation, when it is necessary to transport the stator to be wound to the winding arm 601, the user needs to first use the air pump to evacuate air and press the fixing rod 38 into place. The pressing rod 38 on the surface of the fixed rod 37 retracts towards the fixed rod 37, and then the user can put the stator on the fixed rod 37. Subsequently, the air pump pumps air into the fixed rod 37, causing the pressing rod 38 to push against the inner wall of the stator. The stator is fixed by the friction between the pressing rod 38 and the inner wall of the stator. Then, the moving seat 35 drives the stator to the winding arm 601 for winding operation. Through the cooperation of the fixed rod 37 and the pressing rod 38, the fixed rod 37 and the pressing rod 38 can be adapted to various stators with different inner diameters, thereby expanding the scope of application of the embodiments of the present invention.

[0042] like Figure 1 and Figure 9 As shown, a pair of symmetrically arranged rotating rods 39 are fixedly connected to the bottom of the fixed rod 37; the rotating rods 39 are rotatably connected to the connecting seat 36; gears 40 are fixedly connected to the ends of the rotating rods 39 away from the fixed rod 37; a pair of toothed plates 41 are fixedly connected to the top surface of the workbench 1 on the side away from the support plate 2, and the toothed plates 41 can mesh with the gears 40; a conveyor belt 42 is installed on the top surface of the workbench, and the conveyor belt 42 is located on the side of the toothed plates 41 away from the support plate 2; during operation, after the stator winding is completed, the moving seat 35 will drive the fixed rod 37 and the connecting seat 36. The stator moves toward the toothed plate 41. During this process, the gear 40 at the end of the rotating rod 39 meshes with the toothed plate 41, and the gear 40 drives the rotating rod 39 and the fixed rod 37 to rotate, so that the fixed rod 37 rotates from a vertical state to a horizontal state. At this time, the stator is just at the conveyor belt 42. Then the gas in the fixed rod 37 is extracted, the extrusion rod 38 no longer extrudes the inner wall of the stator, and then the moving seat 35 drives the fixed rod 37 to be pulled away from the stator, so that the stator can be sent away by the conveyor belt 42 and the unloading operation is completed, thereby improving the unloading efficiency.

[0043] like Figure 9As shown, a baffle 43 is rotatably connected to one end of the movable seat 35 near the support plate 2, and a torsion spring is installed at the rotatable connection between the baffle 43 and the movable seat 35; a magnet block 44 is fixedly connected to the top of the baffle 43; a metal ring 45 is fixedly connected to the surface of the fixing rod 37 at the corresponding position of the magnet block 44, and the metal ring 45 is made of magnetizable metal; during operation, when the fixing rod 37 is in a vertical state, the metal ring 45 on the surface of the fixing rod 37 will abut against the magnet block 44 on the surface of the baffle 43, thereby causing the fixing rod 37 and the baffle 43 to attract together, thereby limiting the fixing rod 37, and thus preventing the abutment 5 from pushing the stator and the fixing rod 37 together when pressing the stator, which would cause the copper wire winding error.

[0044] To reduce the difficulty for users in changing the copper wire of the winding machine during operation, this embodiment of the invention can be used. First, the user pulls the fixed arm 4 from the insertion port 6 on the surface of the rotating seat 3 and moves it outside the embodiment of the invention. Then, the user can pass the copper wire to be used through the pulley block and then through the guide tube 7. After that, the user can reinsert the fixed arm 4 with the wire inserted into the insertion port 6 on the surface of the rotating seat 3. Then, the wire at the guide tube 7 is fixed to the mechanical arm 9. Then, the feeding assembly presses the teeth of the stator against the abutment plate 5 at the end of the fixed arm 4. Then, the rotating seat 3 rotates, which in turn drives the winding arm 601 to rotate, so that the copper wire is wound on the teeth on the surface of the stator. During operation, the counterweight tube 8 and the winding tube balance the weight at both ends of the winding arm 601, thereby reducing the vibration of the winding arm 601. After all the teeth on the stator surface are wound with copper wire, the robotic arm 9 cuts the copper wire, thus completing the winding operation of the stator. Through the plug-in and plug-out arrangement between the winding arm 601 and the socket 6, the user can move the winding arm 601 to be threaded with copper wire to the outside of this embodiment of the invention, so that the user has more operating space and can facilitate the threading operation. At the same time, the user can also prepare multiple winding arms 601 and thread copper wire in advance, so that when the copper wire is used up, the previously threaded winding arm 601 can be directly replaced with the winding arm 601 on the rotating seat 3, thereby improving the replacement efficiency.

[0045] When the rotating seat 3 rotates, the upper magnet post 10 at the end of the fixed arm 4 attracts the lower magnet post 11 on the top surface of the workbench 1, so the fixed arm 4 will not rotate with the rotating seat 3. This ensures that the abutment plate 5 at the end of the fixed arm 4 can properly abut against the teeth of the stator. At the same time, when the winding arm 601 rotates, the reflective sticker on its surface will continuously pass through the photoelectric speed sensor 13 on the top surface of the lower magnet post 11, so that the photoelectric speed sensor 13 can detect the number of rotations and speed of the winding arm 601, so that the user can easily adjust the speed of the rotating seat 3, thereby making the copper wire on the surface of the stator more evenly wound.

[0046] After the user passes the copper wire through the winding arm 601, the user needs to pinch the two pairs of levers 17, causing the levers 17 to drive the two clamping arms 14 to rotate in a direction away from each other. This prevents the squeezing rollers 16 at the ends of the clamping arms 14 from squeezing together and stretches the elastic band 15, allowing the copper wire to pass smoothly through the guide tube 7. After the copper wire passes through the guide tube 7, the user releases the levers 17, and the stretched elastic band 15 returns to its original position, thereby driving the two squeezing rollers 16 to clamp the copper wire and fix its position. This makes it convenient for the user to store the winding arm 601 with the copper wire in place, preventing the copper wire from falling into the inside of the guide tube 7 during storage due to lack of fixation.

[0047] When the user inserts the winding arm 601 into the socket 6, the end of the winding arm 601 with the slot 21 should face the socket 6 containing the top plate 20. When the user inserts the winding arm 601 into the socket 6, the top plate 20 on the surface of the limiting block 19 will be inserted into the slot 21 on the surface of the winding arm 601, thereby squeezing the pressure plate 22 in the slot 21 and stretching the spring 24. This causes the pressure plate 22 to pull the connecting rod 18 through the pull rope 23, and then the connecting rod 18 drives the dial plate 17 and the clamping arm 14 to rotate, thereby causing the two clamping arms 14 to move away from each other. This prevents the copper wire from being clamped by the squeezing roller 16 when the winding arm 601 is winding, which would result in poor winding of the copper wire.

[0048] When the top plate 20 presses the pressure plate 22, the limiting rod 26 will cooperate with the limiting hole 25 to restrict the movement of the pressure plate 22 and prevent it from tilting. At the same time, the sliding rod 27 can also restrict the pressure plate 22, thereby preventing the pressure plate 22 from deflecting in the slot 21, which would cause the pull rope 23 to fail to pull the lever plate 17 correctly.

[0049] When the user inserts the winding arm 601 into the socket 6, the abutment 29 at the groove 28 will be obstructed by the inner wall of the socket 6, causing the abutment 29 to be pressed into the socket 6 and compressing the spring 30. When the limiting block 19 abuts against the winding arm 601, the abutment 29 is just outside the rotating seat 3. At this time, the compressed spring 30 rebounds and pushes the abutment 29 out of the groove 28. At this time, one side of the abutment 29 will fit against the surface of the rotating seat 3, thereby cooperating with the limiting block 19 and the abutment 29 to clamp the winding arm 601, thereby locking the winding arm 601 and preventing the winding arm 601 from coming out of the socket 6 when the rotating seat 3 drives the winding arm 601 to rotate.

[0050] When the user needs to unlock the winding arm 601, the user needs to rotate the rotating seat 3 so that the abutment block 29 on the surface of the abutment rod 32 is aligned with the abutment rod 32. Then the user rotates the adjusting rod 34, which drives the double-threaded screw 33 to rotate. The double-threaded screw 33 then drives the abutment rod 32 in the through groove 31 to slide outward along the through groove 31, so that the abutment rod 32 can press the abutment block 29 in the groove 28 of the winding arm 601, so that the abutment block 29 can be pressed into the groove 28 and the spring 2 30 is compressed. At this time, the user can pull the winding arm 601 out of the insertion port 6. Driven by the adjusting rod 34, the abutment rod 32 simultaneously presses the abutment block 29, which can unlock the winding arm 601 more quickly and facilitate the disassembly of the winding arm 601.

[0051] When the stator to be wound needs to be transported to the winding arm 601, the user first needs to use an air pump to draw air and retract the pressing rod 38 on the surface of the fixing rod 37 towards the fixing rod 37. Then the user can put the stator on the fixing rod 37. Subsequently, the air pump pumps air into the fixing rod 37, so that the pressing rod 38 pushes against the inner wall of the stator. The friction between the pressing rod 38 and the inner wall of the stator fixes the stator. Then the moving seat 35 drives the stator to the winding arm 601 for winding. Through the cooperation of the fixing rod 37 and the pressing rod 38, the fixing rod 37 and the pressing rod 38 can be adapted to various stators with different inner diameters, thereby expanding the applicability of the embodiments of the present invention.

[0052] After the stator winding is completed, the moving seat 35 will drive the fixed rod 37 and the stator to move towards the toothed plate 41. During this process, the gear 40 at the end of the rotating rod 39 will mesh with the toothed plate 41, and the gear 40 will drive the rotating rod 39 and the fixed rod 37 to rotate, so that the fixed rod 37 rotates from a vertical state to a horizontal state. At this time, the stator is just at the conveyor belt 42. Then the gas in the fixed rod 37 is extracted, the extrusion rod 38 no longer extrudes the inner wall of the stator, and then the moving seat 35 drives the fixed rod 37 to be extracted from the stator, so that the stator can be sent away by the conveyor belt 42 and the unloading operation is completed, thereby improving the unloading efficiency.

[0053] When the fixing rod 37 is in a vertical position, the metal ring 45 on the surface of the fixing rod 37 will abut against the magnet block 44 on the surface of the baffle 43, thereby causing the fixing rod 37 and the baffle 43 to be attracted together, thus limiting the fixing rod 37 and preventing the abutment 5 from pushing the stator and the fixing rod 37 together when pressing the stator, which would cause the copper wire winding error.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stator coil winding device for an automotive generator, characterized in that: The device includes a workbench; a support plate is fixedly connected to the top surface of the workbench; a rotating seat is rotatably connected to the surface of the support plate; a fixed arm is rotatably connected to the end face of the rotating seat; a fixing assembly is installed between the fixed arm and the workbench; the fixing assembly is used to lock the fixed arm to prevent it from rotating with the rotating seat; a stop plate is slidably connected to the end of the fixed arm away from the fixing assembly via an elastic component; a pair of symmetrically arranged insertion slots are opened on the surface of the rotating seat; a winding arm is inserted into both insertion slots; the winding arm is U-shaped and includes two horizontal arms and one vertical arm; a guide tube and a counterweight tube are fixedly connected to both ends of the winding arm, respectively; a robotic arm is installed on the side of the top surface of the workbench away from the fixing assembly; the robotic arm is used to pull and cut the wire at the guide tube; a feeding assembly is installed on the side of the top surface of the workbench near the robotic arm; the feeding assembly is used to transfer the stator. The fixing assembly includes an upper magnet post and a lower magnet post; the upper magnet post is fixedly connected to the end of the fixing arm away from the robot arm; the lower magnet post is fixedly connected to the top surface of the worktable and located at the bottom of the lower magnet post; a reflective sticker is fixedly connected to the surface of the winding arm at the corresponding position of the lower magnet post; a photoelectric speed sensor is embedded in the top surface of the lower magnet post. The end of the guide tube away from the winding arm is rotatably connected to a pair of clamping arms; an elastic band is rotatably connected between the two clamping arms; a squeezing roller is rotatably connected to the end of the two clamping arms away from the guide tube; and a pair of levers are fixedly connected to the end of each clamping arm away from the squeezing roller. A connecting rod is rotatably connected between the pairs of dial plates; two pairs of symmetrically arranged limiting blocks are fixedly connected to the inner wall of the socket; a top plate is fixedly connected to the end of one pair of limiting blocks away from the robotic arm; a slot is opened on the surface of the winding arm near the guide tube at the corresponding position of the top plate; a pressure plate is provided in the slot; a pull rope is installed between the pressure plate and the connecting rod, and the pull rope passes through the winding arm; a spring is fixedly connected between the pressure plate and the inner wall of the slot. The slot has a limiting hole at the bottom; a limiting rod is fixedly connected to the side of the pressure plate near the limiting hole; the limiting rod is slidably connected to the limiting hole; and a sliding rod is fixedly connected between the pull rope and the pressure plate. The two horizontal arms of the winding arm each have a groove on one side that is close to each other; a stop block is slidably connected in the groove and the stop block is wedge-shaped; a spring is fixedly connected between the stop block and the groove. A through groove is formed on the side surface of the fixed arm; abutment rods are slidably connected to both ends of the through groove; a double-threaded screw is rotatably connected inside the through groove, and the two abutment rods are respectively threaded to both ends of the double-threaded screw; an adjusting rod is rotatably connected to the surface of the fixed arm; the adjusting rod is connected to the double-threaded screw through a gear set.

2. The stator coil winding device for an automotive generator according to claim 1, characterized in that: The feeding assembly includes a movable seat; the movable seat is slidably connected to the top surface of the worktable and is driven by a servo motor; a connecting seat is rotatably connected to the top surface of the movable seat; a fixing rod is installed on the top surface of the connecting seat; the fixing rod is a hollow structure and is connected to an external air pump through an air pipe; a plurality of evenly arranged extrusion rods are slidably connected to the surface of the fixing rod.

3. The stator coil winding device for an automotive generator according to claim 2, characterized in that: A pair of symmetrically arranged rotating rods are fixedly connected to the bottom of the fixed rod; the rotating rods are rotatably connected to the connecting seat; gears are fixedly connected to the ends of the rotating rods away from the fixed rod; a pair of toothed plates are fixedly connected to the top surface of the workbench on the side away from the support plate, and the toothed plates can mesh with the gears; a conveyor belt is installed on the top surface of the workbench, and the conveyor belt is located on the side of the toothed plates away from the support plate.

4. The stator coil winding device for an automotive generator according to claim 3, characterized in that: A baffle is rotatably connected to one end of the movable seat near the support plate, and a torsion spring is installed at the rotatable connection between the baffle and the movable seat; a magnet is fixedly connected to the top of the baffle; a metal ring is fixedly connected to the surface of the fixing rod at the corresponding position of the magnet, and the metal ring is made of magnetizable metal.

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