Stator coil reversing device

Abstract

The application discloses a stator coil reversing device, and relates to the technical field of stator coil production equipment, which comprises a reversing frame, a conveying mechanism, a lifting mechanism and a reversing mechanism, wherein the conveying mechanism realizes stator coil conveying through rollers and a driving assembly, the lifting mechanism realizes the lifting positioning of a turntable through a lifting table and a driving assembly, and the reversing mechanism realizes the clamping and rotating of the stator coil through a rotating shaft, a clamping piece and a driving assembly thereof. The application achieves the purpose of stably conveying and accurately reversing the stator coil, significantly improves the operation efficiency and safety in the production process of the stator coil, and ensures the reliability and positioning accuracy of the reversing process.

Description

Technical Field

[0001] This application relates to the field of stator production equipment technology, and in particular to a stator coil turning device. Background Technology

[0002] During stator production, the coils at both ends of the stator need to be processed. The stator coils are supported on a turntable. After the coils at the upper end of the stator have been processed, the stator needs to be turned around so that the end to be processed is at the upper end, facilitating subsequent coil processing. This turning of the stator directly affects the efficiency and quality of the entire production process. Especially in stator machining, the application of a turning device not only improves operational convenience but also effectively reduces manual intervention, thereby lowering production costs and improving product consistency.

[0003] In related technologies, the following methods are commonly used to achieve the turning operation of stator coils: First, manual turning, which is simple and easy to do, but inefficient and prone to operational errors; second, using simple mechanical clamps in conjunction with manual or pneumatic drive to complete the turning, which improves efficiency to some extent, but still has the problems of complex operation and insufficient precision; third, using multi-joint robotic arms for automatic turning, which can achieve high flexibility, but has a complex structure and high cost, making it uneconomical for small and medium-sized enterprises.

[0004] However, the aforementioned conventional methods generally suffer from a problem: it is difficult to simultaneously ensure operational stability, precision, and cost control. In particular, ensuring the smooth lifting and lowering of the turntable and the precise clamping and rotation of the stator during the transition from the stator coil's conveying state to its turning state has become a pressing technical challenge. Utility Model Content

[0005] To help overcome the above-mentioned technical problems, this application provides a stator coil turning device, which adopts the following technical solution: A stator coil turning device includes a turning frame, a conveying mechanism mounted on the turning frame for conveying a turntable supporting the stator coil, a lifting mechanism for driving the turntable to rise or fall from the conveying mechanism, and a turning mechanism capable of clamping the stator coil on the turntable raised by the lifting mechanism and rotating it to turn it around.

[0006] By adopting the above technical solution, the conveying mechanism can stably transport the stator coil turntable on the stator coil production line to the position to be lifted, providing a reliable foundation for subsequent operations. The lifting mechanism can raise or lower the turntable, facilitating the operation of the subsequent turning mechanism. The turning mechanism can accurately clamp the stator coil on the turntable and rotate it, meeting the needs for adjusting the direction of the stator coil during the production process. It can efficiently complete the conveying, lifting, and turning operations of the stator coil, significantly improving production efficiency and automation level.

[0007] Optionally, the conveying mechanism includes a conveying frame fixedly installed on the turning frame, several rollers rotatably installed on opposite side walls of the conveying frame for moving the turntable, and a conveying drive assembly for driving the several rollers to rotate synchronously.

[0008] By adopting the above technical solution, the conveying mechanism achieves smooth conveying of the turntable through several rollers rotatably installed on both sides of the conveying frame, and drives the rollers to rotate synchronously through the conveying drive component, ensuring the stability and efficiency of the conveying process, and effectively avoiding the problem of the turntable shifting or getting stuck during the conveying process.

[0009] Optionally, the conveying drive assembly includes a first transmission sprocket fixedly mounted on the roller shaft, a conveying motor fixedly mounted on the turning frame, and a common shaft rotatably mounted on the conveying frame. A driving sprocket is fixedly connected to the output shaft of the conveying motor, and a driven sprocket is fixedly connected to the common shaft. The driving sprocket and the driven sprocket are connected by a drive chain. Second transmission sprockets are fixedly mounted at both ends of the common shaft, and the two second transmission sprockets are respectively connected to several first transmission sprockets on the same side by a transmission chain.

[0010] By adopting the above technical solution, the conveyor motor drives the common shaft to rotate through the drive chain between the active sprocket and the driven sprocket. The second drive sprockets at both ends of the common shaft are then connected to several first drive sprockets on the same side through the drive chain, thereby ensuring that all rollers rotate synchronously and improving the stability and reliability of the turntable conveyor.

[0011] Optionally, the lifting mechanism includes a lifting frame fixedly installed on the turning frame, a lifting platform slidably connected to the lifting frame, and a lifting drive assembly for driving the lifting platform to move up and down.

[0012] By adopting the above technical solution, the sliding connection structure between the lifting frame and the lifting platform ensures the stability of the lifting process. The setting of the lifting drive component provides reliable power support for the movement of the lifting platform, enabling the turntable to rise or fall from the conveying mechanism, which facilitates the subsequent turning mechanism to operate the stator coil and improves production efficiency.

[0013] Optionally, the lifting drive assembly includes a lifting motor mounted on the lifting frame and a transmission screw rotatably mounted on the lifting frame. The transmission screw is threadedly connected to the lifting platform, and the output shaft of the lifting motor is fixedly connected to one end of the transmission screw.

[0014] By adopting the above technical solution, the lifting motor is connected to the lifting platform via a transmission screw, which can stably and accurately drive the lifting platform to move up and down, ensuring the stability of the turntable during the lifting process, thereby improving the reliability of the entire device.

[0015] Optionally, the lifting platform is provided with a limiting block for limiting the movement along the conveying direction of the turntable, and the lifting platform is provided with at least two positioning pins for positioning the turntable. The turntable is provided with positioning holes, and when the lifting platform is raised or lowered, the positioning pins pass through the positioning holes.

[0016] By adopting the above technical solution, the limiting block can effectively limit the precise stopping position of the turntable in the lifting position along the conveying direction, ensuring the accuracy of operation. When the lifting platform is lifted, the positioning pin is inserted into the positioning hole, which enhances the connection stability between the turntable and the lifting platform and reduces the risk of the turntable falling off during the lifting or clamping of the stator coil.

[0017] Optionally, the turning mechanism includes a turning frame fixedly mounted on the turning frame, a rotating shaft rotatably mounted on the turning frame, a rotation drive assembly for driving the rotating shaft to rotate, two clamping members slidably mounted on the rotating shaft in the radial direction, and a clamping drive assembly for driving the two clamping members to move towards or away from each other.

[0018] By adopting the above technical solution, the turning mechanism can accurately clamp and rotate the stator coil. Specifically, the setting of the turning frame provides a stable installation foundation for the entire turning mechanism, ensuring reliability during operation; the cooperation between the rotating shaft and the rotating drive assembly enables the clamping parts and the clamped stator coil to perform precise rotating and turning actions, improving production efficiency and operational accuracy; the design of the clamping parts sliding radially along the rotating shaft allows the clamping parts to be flexibly adjusted according to the size of the stator coil, enhancing the applicability of the device; the clamping drive assembly drives the two clamping parts to move towards or away from each other, realizing stable clamping and releasing of the stator coil and avoiding damage to the stator coil during operation.

[0019] Optionally, each of the two clamping members is provided with a clamping part, and the end of the clamping part away from the clamping member is provided with an arc surface that is adapted to the outer circumference of the stator coil.

[0020] By adopting the above technical solution, a clamping part is provided on the clamping component. The end of the clamping part that contacts the stator coil is provided with an arc surface that matches the outer circumference of the stator coil. This increases the contact area between the clamping part and the stator coil, and the stator coil can be clamped with a smaller clamping force, thereby improving the reliability and safety of clamping the stator coil.

[0021] Optionally, the clamping drive assembly includes a clamping motor fixedly mounted on the rotating shaft, a clamping drive sprocket fixedly mounted on the output shaft of the clamping motor, a clamping screw rotatably mounted on the rotating shaft, a clamping driven sprocket fixedly mounted on one end of the clamping screw, and a clamping transmission chain connecting the clamping drive sprocket and the clamping driven sprocket. The clamping screw is threadedly connected to two clamping components, and the threads connecting the clamping screw to the two clamping components have opposite directions of rotation.

[0022] By adopting the above technical solution, the clamping motor drives the clamping drive sprocket to rotate, which in turn drives the clamping screw to rotate. Since the clamping screw is threadedly connected to the two clamping components and rotates in opposite directions, the two clamping components can move towards or away from each other on the rotating shaft, thereby achieving rapid clamping and releasing of the stator coil. This design not only improves the reliability of the clamping action but also ensures the stability of the turning process.

[0023] Optionally, the rotary drive assembly includes a rotary motor, which is fixed to the rotating frame, and the output shaft of the rotary motor is fixedly connected to the end of the rotary shaft away from the clamping member.

[0024] By adopting the above technical solution, the rotary motor is fixed on the rotating frame, which can provide a stable power source for the rotating shaft, ensuring that the rotation of the rotating shaft is smooth and controllable. The output shaft of the rotary motor is fixedly connected to the end of the rotating shaft away from the clamping part, making the power transmission more direct and efficient, while also facilitating installation and maintenance.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The conveying mechanism, through the cooperation of rollers and conveying drive components, ensures the smooth transport of the turntable, effectively avoiding deviation or jamming, and providing a reliable foundation for subsequent operations; 2. The lifting mechanism achieves smooth lifting of the turntable through the coordinated action of the lifting platform and the lifting drive component. Combined with the design of positioning pins and limit blocks, it significantly improves the stability and accuracy of operation. 3. The turning mechanism, through the cooperation of the rotating shaft, clamping parts and drive components, can accurately clamp and rotate the stator coil, meet the needs of direction adjustment in the production process, and improve the level of automation and production efficiency. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of a stator coil turning device disclosed in this application, viewed from the top right side.

[0027] Figure 2 This is a side view of a stator coil turning device disclosed in this application.

[0028] Figure 3 This is a structural schematic diagram of the stator coil turning device disclosed in this application, viewed from the rear top.

[0029] Figure 4 This is a schematic diagram of the lifting platform disclosed in this application.

[0030] Figure 5 This is a structural schematic diagram of a stator coil turning device disclosed in this application, viewed from the top left side.

[0031] Figure 6 This is a front view of a stator coil turning device disclosed in this application.

[0032] Explanation of reference numerals in the attached figures: 1. Turning frame; 2. Conveying mechanism; 21. Conveying frame; 22. Roller; 23. Conveying drive assembly; 231. First transmission sprocket; 232. Conveying motor; 233. Common shaft; 234. Drive sprocket; 235. Driven sprocket; 236. Drive chain; 237. Second transmission sprocket; 238. Transmission chain; 239. Tensioner; 3. Lifting mechanism; 31. Lifting frame; 32. Lifting platform; 321. Limit block; 322. Positioning pin; 33. Lifting drive assembly; 33 1. Lifting motor; 332. Transmission screw; 4. Turning mechanism; 41. Turning frame; 42. Rotating shaft; 421. Connecting part; 43. Rotation drive assembly; 431. Rotation motor; 44. Clamping part; 441. Clamping section; 4411. Arc surface; 45. Clamping drive assembly; 451. Clamping motor; 452. Clamping drive sprocket; 453. Clamping screw; 454. Clamping driven sprocket; 455. Clamping transmission chain; 5. Turntable; 51. Positioning hole; 6. Stator coil. Detailed Implementation

[0033] The following combination Figures 1 to 6 This application will be described in further detail.

[0034] This application discloses a stator coil turning device.

[0035] A stator coil turning device. (Refer to...) Figure 1The system includes a turning frame 1, a conveying mechanism 2, a lifting mechanism 3, and a turning mechanism 4. The conveying mechanism 2, lifting mechanism 3, and turning mechanism 4 are respectively mounted on the turning frame 1. The turning frame 1 is welded or assembled from profiles and steel plates. One end of the conveying mechanism 2 is connected to the stator production line, and the other end extends to the lifting mechanism 3. The stator coil 6 is axially and vertically supported on a turntable 5 and moves between processes on the stator production line. When the stator coil 6 needs to be turned around, the turntable 5 of the stator production line is pushed onto the conveying mechanism 2. The conveying mechanism 2 can transport the turntable 5 to the lifting position of the lifting mechanism 3. The lifting mechanism 3 is mounted on the turning frame 1 and can raise or lower the turntable 5 on the conveying mechanism 2. On the conveying mechanism 2, the turning mechanism 4 is fixedly installed on the turning frame 1. It can clamp the stator coil 6 on the turntable 5 raised by the lifting mechanism 3, rotate it, and place it back on the lifting mechanism 3. The conveying mechanism 2 can stably transport the stator coil 6 on the turntable 5 of the stator production line to the position to be lifted, providing a reliable foundation for subsequent operations. The lifting mechanism 3 can raise or lower the turntable 5, which is convenient for the subsequent operation of the turning mechanism 4. The turning mechanism 4 can accurately clamp the stator coil 6 on the turntable 5 and rotate it, meeting the needs of adjusting the direction of the stator coil 6 during the production process. It can efficiently complete the conveying, lifting, and turning operations of the stator coil 6, significantly improving production efficiency and automation level.

[0036] Reference Figure 1 and Figure 2 The conveying mechanism 2 includes a conveying frame 21, several rollers 22, and a conveying drive assembly 23. The conveying frame 21 can be assembled or welded from steel plates and profiles and is fixedly installed on the turning frame 1. Several rollers 22 are rotatably installed on opposite side walls of the conveying frame 21, forming two rows of rollers 22 for supporting and moving the turntable 5. The conveying drive assembly 23 can drive the several rollers 22 to rotate synchronously. The conveying mechanism 2 achieves stable conveying of the turntable 5 through the several rollers 22 rotatably installed on the side walls of the conveying frame 21. During conveying, the inner side wall of the conveying frame 21 guides the turntable 5 to avoid lateral deviation of the turntable 5 during conveying. The synchronous rotation of the rollers 22 driven by the conveying drive assembly 23 ensures the stability and efficiency of the conveying process and effectively avoids the problem of the turntable 5 shifting or getting stuck during conveying.

[0037] Reference Figure 1 and Figure 2The conveying drive assembly 23 includes a first transmission sprocket 231, a conveying motor 232, a common shaft 233, a drive sprocket 234, a driven sprocket 235, a drive chain 236, a second transmission sprocket 237, and a transmission chain 238. The first transmission sprocket 231 is fixedly mounted on the shaft of the roller 22. The conveying motor 232 is fixedly mounted on the turning frame 1. The common shaft 233 is rotatably mounted on the conveying frame 21 via bearings. The drive sprocket 234 is fixedly connected to the output shaft of the conveying motor 232, and the driven sprocket 235 is fixedly connected to the common shaft 233. The drive sprocket 234 and the driven sprocket 235 are connected by a drive chain 236. The two second transmission sprockets 237 are fixedly mounted at both ends of the common shaft 233. The driving sprocket 237 is connected to several first transmission sprockets 231 on the same side via transmission chains 238. The conveyor frame 21 is also equipped with tensioning wheels 239 for tensioning the transmission chains 238, which can tension the transmission chains 238 to ensure reliable transmission between the second transmission sprockets 237 and the first transmission sprockets 231. The conveyor motor 232 is driven by the drive chain 236 between the driving sprocket 234 and the driven sprocket 235, which drives the common shaft 233 to rotate. The second transmission sprockets 237 at both ends of the common shaft 233 are then connected to several first transmission sprockets 231 on the same side via transmission chains 238, thereby ensuring that all rollers 22 rotate synchronously and improving the stability and reliability of the conveyor on the turntable 5.

[0038] Reference Figure 3 The lifting mechanism 3 includes a lifting frame 31, a lifting platform 32, and a lifting drive assembly 33. The lifting frame 31 is fixedly installed on the turning frame 1 located at one end of the conveyor frame 21. The lifting platform 32 can pass between the rollers 22 on both sides of the conveyor frame 21 during the lifting process. The lifting frame 31 can be assembled or welded from profiles and steel plates. The lifting platform 32 is slidably connected to the lifting frame 31 through a linear guide rail. The lifting drive assembly 33 is installed on the lifting frame 31 and is connected to the lifting platform 32 through a transmission connection to drive the lifting platform 32 to perform lifting actions. The structure in which the lifting frame 31 and the lifting platform 32 are slidably connected through a linear guide rail ensures the stability of the lifting process. The setting of the lifting drive assembly 33 provides reliable power support for the movement of the lifting platform 32, enabling the lifting platform 32 to drive the turntable 5 to rise or fall from the conveyor mechanism 2, which facilitates the subsequent turning mechanism 4 to operate the stator coil 6 and improves production efficiency.

[0039] Reference Figure 3The lifting drive assembly 33 includes a lifting motor 331 and a transmission screw 332. The lifting motor 331 is mounted on the top of the lifting frame 31, and the transmission screw 332 is rotatably mounted on the top and bottom walls of the lifting frame 31 via bearings. The transmission screw 332 is threadedly connected to the lifting platform 32, and the output shaft of the lifting motor 331 is fixedly connected to one end of the transmission screw 332. The lifting motor 331 is threadedly connected to the lifting platform 32 via the transmission screw 332, which can stably and accurately drive the lifting platform 32 to move up and down, ensuring the stability of the turntable 5 during the lifting process, thereby improving the reliability of the entire device.

[0040] Reference Figure 4 The lifting platform 32 is provided with a limiting block 321 for limiting the movement along the conveying direction of the turntable 5. The lifting platform 32 is provided with at least two positioning pins 322 for positioning the turntable 5. The turntable 5 is provided with a positioning hole 51. When the lifting platform 32 is raised or lowered, the positioning pins 322 pass through the positioning holes 51. The limiting block 321 can effectively limit the turntable 5 to stop precisely in the lifting position along the conveying direction, ensuring the accuracy of operation. When the lifting platform 32 is raised or lowered, the positioning pins 322 pass through the positioning holes 51, which enhances the connection stability between the turntable 5 and the lifting platform 32 and reduces the risk of the turntable 5 falling off during the lifting or clamping of the stator coil 6.

[0041] Reference Figure 5 and Figure 6The turning mechanism 4 includes a turning frame 41, a rotating shaft 42, a rotating drive assembly 43, two clamping members 44, and a clamping drive assembly 45. The turning frame 41 is assembled or welded from profiles and steel plates and is fixedly mounted on the turning frame 1. The rotating shaft 42 is rotatably mounted on the turning frame 41 via bearings. The rotating drive assembly 43 is mounted on the turning frame 41 and is drive-connected to the rotating shaft 42. A connecting member 421 is fixedly mounted on the end of the rotating shaft 42 away from the rotating drive assembly 43. The two clamping members 44 are slidably mounted on the connecting member 421 along a linear guide rail. The clamping drive assembly 45 is mounted on the connecting member 421. The connecting member 421 is welded or assembled from steel plates and is fixedly mounted on the end of the rotating shaft 42 near the clamping members 44, and is drive-connected to the two clamping members 44 to drive the two clamping members 44 to move towards each other to clamp the stator. The stator coil 6 is released by the coil 6 moving in opposite directions; the turning mechanism 4 can accurately clamp and rotate the stator coil 6. Specifically, the setting of the turning frame 41 provides a stable mounting base for the entire turning mechanism 4, ensuring reliability during operation; the cooperation between the rotating shaft 42 and the rotating drive assembly 43 can drive the clamping member 44 and the clamped stator coil 6 to perform precise rotating and turning actions, improving production efficiency and operating accuracy; the design of the clamping member 44 sliding radially along the rotating shaft 42 through the connecting member 421 and the linear guide rail allows the clamping member 44 to be flexibly adjusted according to the size of the stator coil 6, enhancing the applicability of the device; the clamping drive assembly 45 drives the two clamping members 44 to move towards or away from each other, realizing stable clamping and release of the stator coil 6, avoiding damage to the stator coil 6 during operation.

[0042] Reference Figure 5 Each of the two clamping members 44 is provided with a clamping part 441. The end of the clamping part 441 away from the clamping member 44 is provided with an arc surface 4411 that is adapted to the outer circumference of the stator coil 6. The clamping part 441 is fixed to the clamping member 44 by screws or adhesive. The end of the clamping part 441 that contacts the stator coil 6 is provided with an arc surface 4411 that is adapted to the outer circumference of the stator coil 6. In this way, when the clamping part 441 clamps the outer circumference of the stator coil 6, the contact area between the clamping part 441 and the stator coil 6 is increased. The stator coil 6 can be clamped with a smaller clamping force, which improves the reliability and safety of clamping the stator coil 6.

[0043] Reference Figure 5 and Figure 6The clamping drive assembly 45 includes a clamping motor 451, a clamping drive sprocket 452, a clamping screw 453, a clamping driven sprocket 454, and a clamping transmission chain 455. The clamping motor 451 is fixedly mounted on a connector 421 on a rotating shaft 42, the clamping drive sprocket 452 is fixedly mounted on the output shaft of the clamping motor 451, and the clamping screw 453 is rotatably mounted on the connector 421 on the rotating shaft 42. The clamping screw 453 is threadedly connected to two clamping members 44 respectively. 3. The threads connecting the two clamping parts 44 are opposite in direction. Thus, the clamping motor 451 drives the clamping drive sprocket 452 to rotate, which in turn drives the clamping screw 453 to rotate. Since the clamping screw 453 is threadedly connected to the two clamping parts 44 and rotates in opposite directions, the two clamping parts 44 can move towards or away from each other on the rotating shaft 42, thereby realizing the rapid clamping and releasing of the stator coil 6. This design not only improves the reliability of the clamping action, but also ensures the stability of the stator coil 6 turning process.

[0044] Reference Figure 6 The rotary drive assembly 43 includes a rotary motor 431, which is fixed on the rotating frame 41. The output shaft of the rotary motor 431 is fixedly connected to the end of the rotary shaft 42 away from the clamping member 44. The rotary motor 431 is fixed on the rotating frame 41, which can provide a stable power source for the rotary shaft 42, ensuring that the rotation of the rotary shaft 42 is smooth and controllable. The fixed connection between the output shaft of the rotary motor 431 and the end of the rotary shaft 42 away from the clamping member 44 makes the power transmission more direct and efficient, and also facilitates installation and maintenance.

[0045] The operating principle of a stator coil turning device is as follows: The conveyor motor 232 is started to rotate the output shaft, driving the roller 22 to rotate and pushing the turntable 5 on the stator production line into the conveyor mechanism 2. The roller 22 rotates and transports the turntable 5 to the lifting platform 32 of the lifting mechanism 3. The limiting block 321 on the lifting platform 32 positions the turntable 5. The lifting motor 331 is started to drive the transmission screw 332 to rotate, driving the lifting platform 32 to rise. The positioning pin 322 on the lifting platform 32 passes through the positioning hole 51 in the turntable 5, lifting the lifting platform 32 until the stator coil 6 on the turntable 5 enters the clamping position of the clamping member 44. The clamping motor 451 is started to drive the clamping part 441 of the clamping member 44 to clamp the stator coil 6. The lifting motor 331 is started to reverse, driving the lifting platform 32 to descend sufficiently. When the space for the stator coil 6 to turn around is stopped, the rotary motor 431 is started to drive the rotary shaft 42 to rotate and turn the stator coil 6 180°. The lifting motor 331 is started again to drive the lifting platform 32 to rise, so that the turnout tray 5 comes into contact with the turned stator coil 6. The clamping motor 451 is started to reverse, so that the clamping part 441 of the clamping part releases the stator coil 6. The lifting motor 331 is started again to reverse, so that the lifting platform 32 is lowered to the lifting starting position, so that the turnout tray 5 falls onto the roller 22 of the conveying mechanism 2, so that the positioning pin 322 is disengaged from the positioning hole 51 in the turnout tray 5. The conveying motor 232 is started to reverse, so that the roller 22 is reversed, so that the turnout tray 5 moves towards the stator production line. The whole device has a compact structure and is easy to operate, which significantly improves production efficiency and automation level.

[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stator coil turning device, characterized in that: It includes a turning frame (1), a conveying mechanism (2) for conveying a turntable (5) supporting a stator coil (6) mounted on the turning frame (1), a lifting mechanism (3) for driving the turntable (5) to rise or fall from the conveying mechanism (2), and a turning mechanism (4) capable of gripping the stator coil (6) on the turntable (5) raised by the lifting mechanism (3) and rotating it.

2. The stator coil turning device according to claim 1, characterized in that: The conveying mechanism (2) includes a conveying frame (21) fixedly installed on the turning frame (1), several rollers (22) for moving the turntable (5) are rotatably installed on the opposite side walls of the conveying frame (21), and a conveying drive assembly (23) for driving the several rollers (22) to rotate synchronously.

3. A stator coil turning device according to claim 2, characterized in that: The conveying drive assembly (23) includes a first transmission sprocket (231) fixedly mounted on the shaft of the roller (22), a conveying motor (232) fixedly mounted on the turning frame (1), and a common shaft (233) rotatably mounted on the conveying frame (21). A drive sprocket (234) is fixedly connected to the output shaft of the conveying motor (232), and a driven sprocket (235) is fixedly connected to the common shaft (233). The drive sprocket (234) and the driven sprocket (235) are connected by a drive chain (236). Second transmission sprockets (237) are fixedly mounted at both ends of the common shaft (233), and the two second transmission sprockets (237) are respectively connected to several first transmission sprockets (231) on the same side by a transmission chain (238).

4. A stator coil turning device according to claim 1, characterized in that: The lifting mechanism (3) includes a lifting frame (31) fixedly installed on the turning frame (1), a lifting platform (32) slidably connected to the lifting frame (31), and a lifting drive assembly (33) for driving the lifting platform (32) to move up and down.

5. A stator coil turning device according to claim 4, characterized in that: The lifting drive assembly (33) includes a lifting motor (331) mounted on the lifting frame (31) and a transmission screw (332) rotatably mounted on the lifting frame (31). The transmission screw (332) is threadedly connected to the lifting platform (32), and the output shaft of the lifting motor (331) is fixedly connected to one end of the transmission screw (332).

6. A stator coil turning device according to claim 5, characterized in that: The lifting platform (32) is provided with a limiting block (321) for limiting the direction of conveying the turntable (5). The lifting platform (32) is provided with at least two positioning pins (322) for positioning the turntable (5). The turntable (5) is provided with a positioning hole (51). When the lifting platform (32) is raised or lowered, the positioning pins (322) pass through the positioning holes (51).

7. A stator coil turning device according to claim 1, characterized in that: The turning mechanism (4) includes a turning frame (41) fixedly installed on the turning frame (1), a rotating shaft (42) rotatably arranged on the turning frame (41), a rotation drive assembly (43) for driving the rotating shaft (42) to rotate, two clamping members (44) slidably arranged along the rotating shaft (42), and a clamping drive assembly (45) for driving the two clamping members (44) to move towards each other or away from each other.

8. A stator coil turning device according to claim 7, characterized in that: Each of the two clamping members (44) is provided with a clamping part (441), and the end of the clamping part (441) away from the clamping member (44) is provided with an arc surface (4411) that is adapted to the outer circumference of the stator coil (6).

9. A stator coil turning device according to claim 7, characterized in that: The clamping drive assembly (45) includes a clamping motor (451) fixedly mounted on the rotating shaft (42), a clamping drive sprocket (452) fixedly mounted on the output shaft of the clamping motor (451), a clamping screw (453) rotatably mounted on the rotating shaft (42), a clamping driven sprocket (454) fixedly mounted on one end of the clamping screw (453), and a clamping transmission chain (455) connecting the clamping drive sprocket (452) and the clamping driven sprocket (454). The clamping screw (453) is threadedly connected to two clamping members (44) respectively, and the threads of the clamping screw (453) connected to the two clamping members (44) have opposite directions.

10. A stator coil turning device according to claim 7, characterized in that: The rotary drive assembly (43) includes a rotary motor (431), which is fixedly mounted on the rotating frame (41). The output shaft of the rotary motor (431) is fixedly connected to one end of the rotating shaft (42) away from the clamping member (44).

Images