Motor rotor and preparation method thereof

Abstract

The invention relates to the technical field of motor rotors, and discloses a motor rotor and a preparation method thereof.The motor rotor comprises a rotating shaft sleeve, a winding arm is fixedly installed at the position, close to the top, of the front end of the outer surface of the rotating shaft sleeve, and a first wire wheel is fixedly installed at the front end of the winding arm and is in winding connection with an enameled wire; matching grooves are formed in the positions, close to the front end and the rear end, of the inner wall of the rotating shaft sleeve, and limiting sliding grooves are formed in the positions, close to the middle, of the two sides of the inner wall of the rotating shaft sleeve. The tension received by the enameled wire can be improved in the moving process of the second wire wheel, and it is guaranteed that when the elastic tension device loses the tension limiting effect on the enameled wire, the second wire wheel can supplement tension to the enameled wire and limit the enameled wire; and the tension applied to the device when the enameled wire is wound on the outer side of the winding frame is ensured to be within a reasonable range.

Description

Technical Field

[0001] This application relates to the technical field of motor rotors, and particularly to a motor rotor and a preparation method thereof. Background Art

[0002] The rotor is one of the important components in a motor, and its quality directly affects the stability of the motor during operation. The traditional motor rotor consists of an iron core, a winding frame, and a connecting shaft. The enameled wire is wound around the outer surface of the winding frame through a winding device. Since the winding device uses an elastic tension device to ensure that the enameled wire is under a certain tension during the winding process and can be tightly wound around the surface of the winding frame, however, in the actual winding process, due to the sharp increase in the rotation speed of the rotating device, the enameled wire is straightened by the way, resulting in the elastic tension device bouncing, causing the enameled wire to lose tension limitation and the tightness after winding to decrease, affecting the rotor quality and resulting in a decline in motor performance. In view of this, this application document proposes a motor rotor and a preparation method thereof, aiming to solve the above-mentioned problems. Summary of the Invention

[0003] This application proposes a motor rotor and a preparation method thereof, which have the advantage of maintaining the tension strength of the enameled wire during the winding process, and are used to solve the problem that the elastic tension device bounces when the winding device rotates instantaneously, resulting in a decrease in the tension of the enameled wire.

[0004] To achieve the above object, this application adopts the following technical solutions: A motor rotor and a preparation method thereof, including, a core is fixedly installed at the front end, a winding hook is arranged on the outer surface of the core, a connecting shaft is fixedly installed at the front end of the core, a winding frame is arranged on the outer surface, the enameled wire is wound around the outside of the winding frame, and the enameled wire is wound through a winding device, and one end of the connecting shaft is fixedly connected to the winding device.

[0005] Further, the winding frames are distributed in a circular array, and the enameled wire is wound through the winding device in two groups simultaneously.

[0006] A preparation method of a motor rotor includes the following steps: S1. Install the connecting shaft on the winding device and adjust the specification of the clamping block according to the radius of the winding frame; S2. Adjust the position of the winding groove of the winding frame through the adjusting motor and align it with the winding position, and at the same time clamp the winding frame through the clamping block; S3. The winding device rotates, and the enameled wire is wound around the outside of the winding frame to form a coil; S4. After the winding is completed, the clamping block releases the clamping state, the adjusting motor adjusts the position of the winding groove of the winding frame again, and after the adjustment is completed, the clamping block clamps the winding frame again; S5. The winding device rotates, and the enameled wire is wound around the outside of the winding frame again to form a second coil. S6. Repeat the above steps to obtain multiple groups of coils as required and complete the winding of the motor rotor.

[0007] A motor rotor winding device includes a bottom plate. At positions near both ends of the top of the bottom plate, a stroke device is movably installed. At positions near the left and right ends of the top of the bottom plate, a telescopic machine is fixedly installed. One end of the output shaft of the telescopic machine is fixedly connected to the stroke device. At a position near the back of the top of the bottom plate, a fixed rotating machine is fixedly installed, and the end of the connecting shaft is fixedly connected to the fixed rotating machine.

[0008] Further, the stroke device includes a stroke seat. The stroke seat is matched with the slide rail at the top of the bottom plate. At a position near the end of the top of the stroke seat, a connecting back plate is fixedly installed. The output shaft of the telescopic machine is connected to the connecting back plate. At a position above the connecting back plate on the top of the stroke seat, a rotating motor is fixedly installed through a rib plate. One end of the output shaft of the rotating motor is fixedly installed with a rotating device. The inside of the rotating device is movably sleeved with a fixed shaft device. Inside the fixed shaft device, a clamping device is movably installed in a telescopic cooperation manner.

[0009] Further, the rotating device includes a rotating shaft sleeve. At a position near the top of the front end of the outer surface of the rotating shaft sleeve, a winding arm is fixedly installed. At the front end of the winding arm, a first wire wheel is fixedly installed. The first wire wheel is wound and connected with the enameled wire. At positions near the front and rear ends of the inner wall of the rotating shaft sleeve, cooperation grooves are provided. At positions near the middle on both sides of the inner wall of the rotating shaft sleeve, limiting sliding grooves are provided. At a position near the middle of the bottom of the inner wall of the rotating shaft sleeve, a through hole is opened. At a position corresponding to the through hole on the outer surface of the rotating shaft sleeve, a tension compensation device is movably sleeved through a connecting plate. On both sides of the outer surface of the rotating shaft sleeve, wire guiding seats are fixedly installed.

[0010] Further, the fixed shaft device includes a fixed shaft sleeve. At positions near the front end and the rear end of the outer surface of the fixed shaft sleeve, bearings are provided, and the bearings correspond to the cooperation grooves on the inner wall of the rotating shaft sleeve. At a position near the middle of the outer surface of the fixed shaft sleeve, a strip-shaped sliding hole is opened. The strip-shaped sliding hole is slidably matched with the clamping device. One end of the inner cavity of the fixed shaft sleeve is fixedly installed with a telescopic push rod.

[0011] Further, the clamping device includes a connecting rod, a clamping block is fixedly installed at the front end of the connecting rod, the arc surface at the front end of the clamping block cooperates with the wire winding frame to achieve clamping, an annular ball bearing frame is fixedly installed on the outer surface of the connecting rod through the connecting rod, and the connecting rod cooperates with the strip-shaped sliding hole. The back of the annular ball bearing frame is movably sleeved with an annular synchronous frame by means of ball cooperation. Limiting sliders are arranged on both sides of the outer surface of the annular synchronous frame, and the limiting sliders cooperate with the limiting sliding grooves. An adjusting rack is fixedly installed at a position near the bottom of the back of the annular synchronous frame.

[0012] Further, the tension compensation device includes a rotating frame, an adjusting gear is fixedly installed at one end of the rotating frame, the adjusting gear meshes with the adjusting rack, and the adjusting gear is movably sleeved with the bottom connecting plate of the rotating shaft sleeve. A partition is arranged at a position near the adjusting gear inside the rotating frame. A sliding groove is arranged inside the rotating frame, and a second wire wheel is movably installed through the cooperation of the sliding groove. A balance spring is arranged on the back side of the second wire wheel, and one end of the balance spring is connected to the partition.

[0013] The present application has the following beneficial effects.

[0014] The device utilizes the increased centrifugal force generated when the rotational speed of the rotating shaft sleeve increases sharply, so that the displacement of the second wire wheel is used to increase the tension borne by the enameled wire, to make up for the lack of tension caused by the sudden tightening of the enameled wire during winding, which causes the elastic tension device to bounce, ensuring that the tension received by the enameled wire does not fluctuate during winding, and ensuring the quality of the rotor after winding. At the same time, when the radius of the rotor used is relatively large, the annular ball bearing frame will push the annular synchronous frame to move synchronously, the included angle between the tension compensation device and the rotating device increases, and the axial distance between the second wire wheel and the rotating device increases. After the rotational speed of the rotating shaft sleeve increases sharply, the centrifugal force generated by the second wire wheel increases. Since the radius of the iron core is relatively large, the length of the enameled wire consumed per revolution of the rotating shaft sleeve increases, and the demand for tension of the enameled wire increases. And the second wire wheel increases the displacement distance and the pulling force on the enameled wire on the premise of the increased centrifugal force, thereby achieving the effect of increasing the tension of the enameled wire and achieving the function of automatic adjustment. Description of the Drawings

[0015] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application.

[0016] Referring to the drawings, the present disclosure can be more clearly understood according to the following detailed description, wherein: Figure 1 It is a structural click rotor diagram of the present invention; Figure 2 It is a structural wire winding device diagram of the present invention; Figure 3This is the structural stroke device diagram of the present invention; Figure 4 This is the sectional view of the structural stroke device of the present invention; Figure 5 This is the structural rotation device diagram of the present invention; Figure 6 This is the sectional view of the structural rotation device of the present invention; Figure 7 This is the structural inner roller device diagram of the present invention; Figure 8 This is the sectional view of the structural inner roller device of the present invention; Figure 9 This is the structural clamping device diagram of the present invention; Figure 10 This is the structural diagram of the annular synchronous frame of the present invention; Figure 11 This is the structural tension compensation device diagram of the present invention; Figure 12 This is the flow chart of the preparation method of the motor rotor of the present invention.

[0017] In the figure: 1, base plate; 2, stroke device; 3, telescopic machine; 4, fixed rotating machine; 11, iron core; 12, connecting shaft; 13, winding frame; 21, stroke seat; 22, connecting back plate; 23, rotating motor; 24, rotating device; 241, rotating shaft sleeve; 242, winding arm; 243, first wire wheel; 244, limiting chute; 245, wire seat; 25, fixed shaft device; 251, fixed shaft sleeve; 252, strip-shaped sliding hole; 253, telescopic abutting rod; 26, clamping device; 261, connecting rod; 262, clamping block; 263, annular ball bearing; 264, annular synchronous frame; 265, limiting slider; 266, adjusting rack; 27, tension compensation device; 271, rotating frame; 272, adjusting gear; 273, partition plate; 274, second wire wheel; 275, balance spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0019] A motor rotor and its preparation method, please refer to Figure 1, including 10, with an iron core 11 fixedly installed at the front end of 10. A winding hook is provided on the outer surface of the iron core 11. A connecting shaft 12 is fixedly installed at the front end of the iron core 11. A winding frame 13 is provided on the outer surface of 10. The enameled wire is wound around the outside of the winding frame 13 and is wound by a winding device. One end of the connecting shaft 12 is fixedly connected to the winding device.

[0020] Please refer to Figure 1 , the winding frames 13 are distributed in an annular array, and the enameled wire is wound by the winding device in two groups simultaneously.

[0021] The motor rotor has a simple structure and stable performance, better stability under high-speed rotation, and the production efficiency is improved by adopting the method of winding two groups simultaneously.

[0022] A preparation method of a motor rotor includes the following steps: S1. Install the connecting shaft 12 on the winding device and adjust the specifications of the clamping blocks according to the radius of the winding frame 13; S2. Adjust the position of the winding groove of the winding frame 13 by adjusting the motor and align it with the winding position, and at the same time clamp the winding frame 13 by the clamping blocks; S3. The winding device rotates to wind the enameled wire around the outside of the winding frame 13 to form a coil; S4. After winding, the clamping state of the clamping blocks is released, and the position of the winding groove of the winding frame 13 is adjusted again by adjusting the motor. After the adjustment is completed, the clamping blocks clamp the winding frame 13 again; S5. The winding device rotates to wind the enameled wire around the outside of the winding frame 13 again to form a second coil; S6. Repeat the above steps to obtain multiple groups of coils as required and complete the winding of the motor rotor.

[0023] Please refer to Figure 2 , including a bottom plate 1. Travel devices 2 are movably installed at positions near both ends of the top of the bottom plate 1. Telescopic machines 3 are fixedly installed at positions near the left and right ends of the top of the bottom plate 1. One end of the output shaft of the telescopic machine 3 is fixedly connected to the travel device 2. A fixed rotating machine 4 is fixedly installed at a position near the back of the top of the bottom plate 1. The end of the connecting shaft 12 is fixedly connected to the fixed rotating machine 4.

[0024] Please refer to Figures 2 - 4, the stroke device 2 includes a stroke seat 21. The stroke seat 21 is matched with the top slide rail of the bottom plate 1. A connecting back plate 22 is fixedly installed at a position near the end of the top of the stroke seat 21. The output shaft of the telescopic machine 3 is connected to the connecting back plate 22. A rotating motor 23 is fixedly installed at a position above the connecting back plate 22 on the top of the stroke seat 21 through a rib plate. One end of the output shaft of the rotating motor 23 is fixedly installed with a rotating device 24. A fixed shaft device 25 is movably sleeved inside the rotating device 24. A clamping device 26 is movably installed inside the fixed shaft device 25 in a telescopic matching manner.

[0025] Please refer to Figure 3 and Figures 5 - 6 , the rotating device 24 includes a rotating shaft sleeve 241. A winding arm 242 is fixedly installed at a position near the top of the front end of the outer surface of the rotating shaft sleeve 241. A first wire wheel 243 is fixedly installed at the front end of the winding arm 242. The first wire wheel 243 is wound and connected with an enameled wire. Matching grooves are provided at positions near the front and rear ends of the inner wall of the rotating shaft sleeve 241. Limiting sliding grooves 244 are provided at positions near the middle on both sides of the inner wall of the rotating shaft sleeve 241. A through hole is opened at a position near the middle of the bottom of the inner wall of the rotating shaft sleeve 241. And a tension compensation device 27 is movably sleeved through a connecting plate at a position on the outer surface of the rotating shaft sleeve 241 corresponding to the through hole. Wire guides 245 are fixedly installed on both sides of the outer surface of the rotating shaft sleeve 241.

[0026] The winding arm 242 and the tension compensation device 27 are arranged in a vertically symmetric manner. This enables the centrifugal forces received by the winding arm 242 and the tension compensation device 27 to be balanced during the rotation of the rotating device 24. It can greatly reduce the vibration amplitude during the high-speed rotation of the rotating shaft sleeve 241 when the device winds the iron core 11 and the winding frame 13, and improve the stability during its winding operation.

[0027] Please refer to Figure 2 and Figures 7 - 8 , the fixed shaft device 25 includes a fixed shaft sleeve 251. Bearings are provided at positions near the front end and the rear end of the outer surface of the fixed shaft sleeve 251, and the bearings correspond to the matching grooves on the inner wall of the rotating shaft sleeve 241. A strip-shaped sliding hole 252 is opened at a position near the middle of the outer surface of the fixed shaft sleeve 251. The strip-shaped sliding hole 252 is slidably matched with the clamping device 26. One end of the inner cavity of the fixed shaft sleeve 251 is fixedly installed with a telescopic abutting rod 253.

[0028] Please refer to Figure 1 and Figures 7 - 10, the clamping device 26 includes a connecting rod 261. A clamping block 262 is fixedly installed at the front end of the connecting rod 261. The front arc surface of the clamping block 262 cooperates with the wire winding frame 13 to achieve clamping. An annular ball holder 263 is fixedly installed on the outer surface of the connecting rod 261 through the connecting rod, and the connecting rod cooperates with the strip-shaped sliding hole 252. A ring-shaped synchronous frame 264 is movably sleeved on the back of the annular ball holder 263 in a ball cooperation manner. Limiting sliders 265 are arranged on both sides of the outer surface of the ring-shaped synchronous frame 264, and the limiting sliders 265 cooperate with the limiting sliding grooves 244. An adjusting rack 266 is fixedly installed at a position near the bottom on the back of the ring-shaped synchronous frame 264.

[0029] After the clamping block 262 clamps the iron core 11, the output shaft of the telescopic abutting rod 253 will extend out and abut against the tail end of the connecting rod 261. At this time, the connecting rod 261 cannot move, avoiding the problem that the tension compensation device 27 rotates under the action of centrifugal force and drives the adjusting rack 266 to move, resulting in the displacement of the annular ball holder 263 and the loosening of the clamping of the iron core 11 by the clamping block 262, and improving the stability of the device during operation.

[0030] Please refer to Figure 6 and Figures 10 - 12 , the tension compensation device 27 includes a rotating frame 271. An adjusting gear 272 is fixedly installed at one end of the rotating frame 271. The adjusting gear 272 meshes with the adjusting rack 266, and the adjusting gear 272 is movably sleeved on the bottom connecting plate of the rotating shaft sleeve 241. A partition plate 273 is arranged at a position near the adjusting gear 272 on the inner side of the rotating frame 271. A sliding groove is arranged on the inner side of the rotating frame 271, and a second wire wheel 274 is movably installed through the cooperation of the sliding groove. A balance spring 275 is arranged on the back side of the second wire wheel 274, and one end of the balance spring 275 is connected to the partition plate 273.

[0031] When the device winds the wire, the rotational speed of the rotating bushing 241 will increase sharply, which causes the traction force on the enameled wire to suddenly increase, making the enameled wire straighten instantly. This causes the elastic tension device used to increase the tension of the enameled wire to bounce up, so that the enameled wire is separated from the elastic tension device. This makes the enameled wire lose the effect of tension limitation in a short time during the winding operation, resulting in a decrease in the winding quality of the enameled wire. In this application document, when the rotational speed of the rotating bushing 241 increases sharply, the second wire wheel 274 in the tension compensation device 27 moves to the side away from the partition 273 under the action of centrifugal force. Since the enameled wire is wound outside the second wire wheel 274 at this time, the movement of the second wire wheel 274 will increase the tension received by the enameled wire, ensuring that when the elastic tension device loses the tension limitation effect on the enameled wire, the second wire wheel 274 can supplement the tension of the enameled wire and limit it, ensuring that the tension received by the device when winding the enameled wire outside the winding frame 13 is within a reasonable range, ensuring that the motor rotor after winding meets the quality requirements, and improving the practicability of the device.

[0032] When the rotational speed of the rotating bushing 241 stabilizes, the centrifugal force on the second wire wheel 274 and the elastic force of the balance spring 275 are in a parallel state. At this time, the second wire wheel 274 stops moving and loses the tension effect on the enameled wire. At the same time, the elastic tension device resets and contacts the enameled wire and continues to apply tension to the enameled wire, avoiding damage to the enameled wire caused by the second wire wheel 274 and the elastic tension device applying tension to the enameled wire at the same time, and improving the reliability of the device during operation.

[0033] When the radius of the iron core 11 used is relatively large, when the clamping block 262 clamps the iron core 11 at this time, the moving distance of the connecting rod 261 into the fixed bushing 251 increases. At the same time, the annular ball rack 263 will push the ring-shaped synchronous rack 264 to move synchronously. By adjusting the meshing effect between the adjusting rack 266 and the adjusting gear 272, the rotating frame 271 is driven to rotate, so that the included angle between the tension compensation device 27 and the rotating device 24 increases, and the axial distance between the second wire wheel 274 and the rotating device 24 increases. After the rotational speed of the rotating bushing 241 increases sharply, the centrifugal force generated by the second wire wheel 274 increases. Since the radius of the iron core 11 is relatively large, the length of the enameled wire consumed per revolution of the rotating bushing 241 increases, and the demand for tension of the enameled wire increases. And the second wire wheel 274, due to the increase in centrifugal force, has an increased displacement distance and an increased pulling force on the enameled wire, so as to increase the tension of the enameled wire, achieving the effect that when the radius of the iron core 11 increases and the elastic tension device loses the tension limitation effect on the enameled wire, the tension compensation effect of the second wire wheel 274 on the enameled wire will increase at the same time, realizing that the device can automatically adjust the tension compensation effect of the second wire wheel 274 on the enameled wire according to the radius of the iron core 11, and improving the practicability of the device.

[0034] The usage method of the present invention is as follows: During use, after winding the enameled wire around the outer surface of the second wire wheel 274 for one circle, it passes through the wire guide seat 245 and winds around the outer surface of the first wire wheel 243 for one circle. Then, fix the connecting shaft 12 to the fixed rotating machine 4. The telescopic machine in the fixed rotating machine 4 pushes the connecting shaft 12 so that the iron core 11 is at the position corresponding to the clamping block 262. Control the telescopic machine 3 to push the stroke device 2 to move towards the iron core 11. Finally, make the clamping block 262 contact and clamp the iron core 11. After the clamping block 262 clamps the iron core 11, the output shaft of the telescopic push rod 253 extends and abuts against the end of the connecting rod 261.

[0035] When the device winds the wire, the rotation speed of the rotating shaft sleeve 241 will increase sharply, which causes the traction force received by the enameled wire to suddenly increase, making the enameled wire straighten instantly. This causes the elastic tension device used to increase the tension of the enameled wire to bounce up, so that the enameled wire is separated from the elastic tension device. This causes the enameled wire to lose the effect of tension limitation for a short time during the winding operation, resulting in a decrease in the winding quality of the enameled wire. In this application document, when the rotation speed of the rotating shaft sleeve 241 increases sharply, the second wire wheel 274 in the tension compensation device 27 moves to the side away from the partition 273 under the action of centrifugal force. Since the enameled wire is wound outside the second wire wheel 274 at this time, the movement of the second wire wheel 274 will increase the tension received by the enameled wire, ensuring that when the elastic tension device loses the tension limitation effect on the enameled wire, the second wire wheel 274 can supplement the tension of the enameled wire and limit it, ensuring that the tension received by the device when winding the enameled wire outside the winding frame 13 is within a reasonable range. When the rotation speed of the rotating shaft sleeve 241 stabilizes, the centrifugal force received by the second wire wheel 274 and the elastic force of the balance spring 275 are in a parallel state. At this time, the second wire wheel 274 stops moving and loses the tension effect on the enameled wire. At the same time, the elastic tension device resets and contacts the enameled wire and continues to apply tension to the enameled wire. When the radius of the iron core 11 used is relatively large, when the clamping block 262 clamps the iron core 11 at this time, the moving distance of the connecting rod 261 into the fixed shaft sleeve 251 increases. At the same time, the annular ball bearing 263 will push the ring-shaped synchronous frame 264 to move synchronously. By adjusting the meshing effect between the adjusting rack 266 and the adjusting gear 272, the rotating frame 271 is driven to rotate, increasing the angle between the tension compensation device 27 and the rotating device 24, and increasing the axial distance between the second wire wheel 274 and the rotating device 24. After the rotation speed of the rotating shaft sleeve 241 increases sharply, the centrifugal force generated by the second wire wheel 274 increases. Since the radius of the iron core 11 is relatively large, the length of the enameled wire consumed per revolution of the rotating shaft sleeve 241 increases, and the demand for tension of the enameled wire increases. And the second wire wheel 274 increases the displacement distance and the pulling force on the enameled wire on the premise of increasing centrifugal force, so as to increase the tension of the enameled wire, realizing that when the radius of the iron core 11 increases and the elastic tension device loses the tension limitation effect on the enameled wire, the tension compensation effect of the second wire wheel 274 on the enameled wire will increase at the same time, realizing that the device can automatically adjust the tension compensation effect of the second wire wheel 274 on the enameled wire according to the radius of the iron core 11.

Claims

1. A motor rotor, characterized in that: The invention comprises (10), wherein an iron core (11) is fixedly mounted at the front end of the (10), a winding hook is arranged on the outer surface of the iron core (11), a connecting shaft (12) is fixedly mounted at the front end of the iron core (11), a winding frame (13) is arranged on the outer surface of the (10), an enameled wire is wound around the outer side of the winding frame (13), and the enameled wire is wound through a winding device, and one end of the connecting shaft (12) is fixedly connected to the winding device.

2. A motor rotor according to claim 1, characterized in that: The winding frames (13) are distributed in a circular array, and the enameled wire is wound in two groups simultaneously through the winding device.

3. A method for preparing a motor rotor, comprising the following steps: S1. Install the connecting shaft (12) on the winding device and adjust the specifications of the clamping block according to the radius of the winding frame (13); S2, adjusting the position of the winding groove of the winding frame (13) by adjusting the motor and aligning it with the winding position, and clamping the winding frame (13) by a clamping block; S3, the winding device rotates to wind the enameled wire around the outside of the winding frame (13) to form a coil; S4, after the winding is completed, the clamping block releases the clamping state, and the motor is adjusted to adjust the position of the winding groove of the winding frame (13) again. After the adjustment is completed, the clamping block clamps the winding frame (13) again; S5, the winding device rotates to wind the enameled wire around the outside of the winding frame (13) again to form a second coil; S6. Repeat the above steps to obtain multiple sets of coils as required and complete the winding of the motor rotor.

4. The method for preparing a motor rotor according to claim 3, characterized in that: The winding device comprises a base plate (1), a travel device (2) is movably mounted at positions near both ends of the top of the base plate (1), a telescopic machine (3) is fixedly mounted at positions near the left and right ends of the top of the base plate (1), one end of the output shaft of the telescopic machine (3) is fixedly connected to the travel device (2), a fixed rotating machine (4) is fixedly mounted at a position near the back of the top of the base plate (1), and the end of the connecting shaft (12) is fixedly connected to the fixed rotating machine (4).

5. The method for preparing a motor rotor according to claim 4, characterized in that: The travel device (2) comprises a travel seat (21), the travel seat (21) cooperates with the top slide rail of the bottom plate (1), a connecting back plate (22) is fixedly installed at a position near the end of the top of the travel seat (21), the output shaft of the telescopic machine (3) is connected to the connecting back plate (22), a rotating motor (23) is fixedly installed at a position above the connecting back plate (22) at the top of the travel seat (21) through a rib plate, one end of the output shaft of the rotating motor (23) is fixedly installed with a rotating device (24), a fixed axis device (25) is movably sleeved inside the rotating device (24), and a clamping device (26) is movably installed inside the fixed axis device (25) by means of telescopic cooperation.

6. The method for preparing a motor rotor according to claim 5, characterized in that: The rotating device (24) comprises a rotating sleeve (241), a winding arm (242) is fixedly mounted at a position near the top of the front end of the outer surface of the rotating sleeve (241), a first wire wheel (243) is fixedly mounted at the front end of the wire winding arm (242), and the first wire wheel (243) is wound and connected with the enameled wire, matching grooves are arranged at positions near the front and rear ends of the inner wall of the rotating sleeve (241), limiting sliding grooves (244) are arranged at positions near the middle of both sides of the inner wall of the rotating sleeve (241), a through hole is opened at a position near the middle of the bottom of the inner wall of the rotating sleeve (241), and a tension supplement device (27) is arranged at a position on the outer surface of the rotating sleeve (241) corresponding to the through hole through a connecting plate movable sleeve, and wire seats (245) are fixedly mounted at both sides of the outer surface of the rotating sleeve (241).

7. The method for preparing a motor rotor according to claim 6, characterized in that: The fixed axis device (25) comprises a fixed shaft sleeve (251), bearings are arranged at positions near the front end and the rear end of the outer surface of the fixed shaft sleeve (251), and the bearings correspond to the matching grooves on the inner wall of the rotating shaft sleeve (241), a strip-shaped sliding hole (252) is opened at a position near the middle of the outer surface of the fixed shaft sleeve (251), the strip-shaped sliding hole (252) is slidably matched with the clamping device (26), and a telescopic support rod (253) is fixedly installed at one end of the inner cavity of the fixed shaft sleeve (251).

8. The method for preparing a motor rotor according to claim 7, characterized in that: The clamping device (26) comprises a connecting rod (261), a clamping block (262) is fixedly mounted on the front end of the connecting rod (261), the front end arc surface of the clamping block (262) cooperates with the winding frame (13) to achieve clamping, an annular ball frame (263) is fixedly mounted on the outer surface of the connecting rod (261) through the connecting rod, and the connecting rod cooperates with the strip sliding hole (252), the back of the annular ball frame (263) is movably sleeved with an annular synchronous frame (264) in a ball-matching manner, limiting sliders (265) are arranged on both sides of the outer surface of the annular synchronous frame (264), the limiting sliders (265) cooperate with the limiting sliding grooves (244), and an adjusting gear rod (266) is fixedly mounted on the back of the annular synchronous frame (264) near the bottom.

9. The method for preparing a motor rotor according to claim 8, characterized in that: The tension supplement device (27) comprises a rotating frame (271), one end of the rotating frame (271) is fixedly mounted with an adjusting gear (272), the adjusting gear (272) and the adjusting gear rod (266) are meshed with each other, and the adjusting gear (272) and the bottom connecting plate of the rotating shaft sleeve (241) are movably sleeved, a partition plate (273) is arranged at a position close to the adjusting gear (272) on the inner side of the rotating frame (271), a sliding groove is arranged on the inner side of the rotating frame (271), and a second wire wheel (274) is movably mounted through the sliding groove, and a balance spring (275) is arranged on the back side of the second wire wheel (274), and one end of the balance spring (275) is connected to the partition plate (273).

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