Motor stator coil winding tension self-adaptive control device and method

Abstract

The invention discloses a motor stator coil winding tension self-adaptive control device and method, and relates to the field of motor stator coil winding, the motor stator coil winding tension self-adaptive control device comprises a lifting plate, one side of the lifting plate is rotatably connected with a connecting arm, the connecting arm is L-shaped, the bottom of one end of the connecting arm is fixedly provided with a fixing rod, the bottom end of the fixing rod is connected with a winding plate, and the winding plate is fixedly connected with the lifting plate. A groove is formed in one side of the top end of the connecting arm, an electric push rod is fixed in the groove, one end of the electric push rod is connected with an arc-shaped plate, a pressure sensor is embedded in the middle of the interior of the arc-shaped plate, and due to the blocking effect of the arc-shaped plate, when a copper wire makes contact with the arc-shaped plate, the copper wire can be extruded on the pressure sensor; the pressure sensor can detect the extrusion force of the copper wire, if the extrusion force is too large, the tightness of the copper wire is high, at the moment, the copper wire can be released more quickly by retracting the electric push rod or enabling the second motor to release, the tightness of the copper wire is reduced, and the phenomenon that the wound copper wire is broken due to too large tension is avoided.

Description

Technical Field

[0001] The present invention relates to the field of winding of motor stator coils, and particularly to an adaptive control device and method for the winding tension of motor stator coils. Background Art

[0002] A motor stator coil winding machine is a key device in motor manufacturing. It is mainly used to wind wire materials such as enameled copper wires around a stator core according to specific rules to form a magnetic field coil 15 that drives the motor to operate. Its core function is to achieve high-precision winding through automation technology, ensuring the electrical performance and mechanical stability of the coil, which directly affects the efficiency, life, and operating reliability of the motor.

[0003] The existing motor stator coils are either wound manually or mechanically. The former has low operation efficiency and high labor cost, while the latter is not easy to control the winding tension because the mechanical winding has a constant winding force, and as the coil diameter increases, this force needs to be adjusted to meet the requirements of high-quality production.

[0004] Therefore, it is necessary to propose an adaptive control device and method for the winding tension of motor stator coils to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an adaptive control device and method for the winding tension of motor stator coils to solve the problems that the existing motor stator coils are either wound manually or mechanically. The former has low operation efficiency and high labor cost, while the latter is not easy to control the winding tension because the mechanical winding has a constant winding force, and as the coil diameter increases, this force needs to be adjusted to meet the requirements of high-quality production.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An adaptive control device for the winding tension of motor stator coils includes a lifting plate. One side of the lifting plate is rotatably connected to a connecting arm. The connecting arm is L-shaped, and a fixing rod is fixed to the bottom of one end of the connecting arm. The bottom end of the fixing rod is connected to a winding plate. A groove is formed on one side of the top end of the connecting arm, and an electric push rod is fixed in the groove. One end of the electric push rod is connected to an arc-shaped plate, and a pressure sensor is embedded in the middle of the arc-shaped plate.

[0007] A middle rotating shaft is rotatably arranged above the connecting arm, and a copper wire is wound around the middle rotating shaft. The copper wire sequentially passes through the arc-shaped plate and the winding plate.

[0008] Rollers are arranged on both sides of the pressure sensor, and the rollers are embedded in the inner side of the arc-shaped plate.

[0009] Preferably, a through hole for the copper wire to pass through is provided at the bottom end of one side of the wire winding board. A connecting pipe is threadedly installed at one end of the through hole. One end of the copper wire is wound around a winding shaft, and the winding shaft is rotatably connected to a fixing frame. A second motor is fixed on one side of the fixing frame, and the driving shaft of the second motor is fixedly connected to one end of the winding shaft.

[0010] Preferably, a cleaning sleeve is fixed to the inner top end of the connecting pipe. A tapered through hole is formed inside the cleaning sleeve, and the radius of the bottom end of the cone is smaller than that of the top end. The cleaning sleeve is elastic.

[0011] Preferably, a sponge pad is arranged below the cleaning sleeve. The sponge pad is fixed to the inner wall of the connecting pipe, and both the cleaning sleeve and the sponge pad extend out of the connecting pipe at their mutually remote ends.

[0012] Preferably, a connecting frame is fixed to the top end of the lifting plate. A support frame is fixed to the bottom of one end of the connecting frame. The middle rotating shaft is rotatably connected inside the support frame. A second motor is fixed on one side of the support frame, and the driving shaft of the second motor is fixedly connected to one end of the middle rotating shaft.

[0013] Preferably, a fixing seat is arranged below the connecting arm. A stator body is installed inside the fixing seat. A plurality of winding ends are fixed to the inner circle of the stator body, and the copper wire is wound around the winding ends.

[0014] Preferably, a first motor is fixed to the bottom end of the fixing seat, and the driving shaft of the first motor is connected to the bottom of the fixing seat.

[0015] Preferably, a base is arranged below the lifting plate. A plurality of cylinders are fixedly connected to the top end of the base, and the top ends of the plurality of cylinders are fixed to the bottom end of the lifting plate. A slide rail is fixed to one side of the top end of the base, and the lifting plate is slidably matched with the slide rail. A controller and a timer are arranged inside the lifting plate.

[0016] Preferably, one side of the groove close to the arc-shaped plate communicates with the outside. The bottom end of the groove penetrates through the connecting arm, and one side of the groove close to the arc-shaped plate opens outward.

[0017] The present invention also discloses a method for adaptively controlling the winding tension of the motor stator coil, including the following steps:

[0018] First step: Install the stator body inside the fixing seat, so that the copper wire on the middle rotating shaft passes through the arc-shaped plate and the connecting pipe in sequence, and the wire winding board extends into the stator body;

[0019] Second step: Start the first motor and the cylinders, so that the wire winding board continuously moves up and down, and at the same time, the stator body continuously rotates left and right to complete the winding of the copper wire and the winding ends.

[0020] In the third step, the copper wire passes through the arc plate and contacts the pressure sensor to detect the extrusion force of the copper wire, so as to use the second motor to control the retraction and extension of the copper wire on the rotating shaft to adaptively adjust the tension of the copper wire.

[0021] Technical effects and advantages of the present invention:

[0022] 1. In the actual operation of the invention, the arc-shaped plate can be provided to protect and isolate the copper wire passing through, thereby preventing the copper wire from contacting the corners of the connecting arm, causing scratch damage to the copper wire, and avoiding damage to the copper wire when the connecting arm rotates.

[0023] 2. Due to the blocking effect of the curved plate, when the copper wire comes into contact with the curved plate, the copper wire will be squeezed on the pressure sensor. The pressure sensor will detect the squeezing force of the copper wire. If the squeezing force is too large, it means that the tightness of the copper wire is too high. At this time, the tightness of the copper wire can be reduced by retracting the electric push rod or making the second motor release the copper wire faster to avoid the entangled copper wire from breaking due to excessive tension.

[0024] 3. Similarly, if the pressure sensor detects that the extrusion pressure of the copper wire is too small, the controller can be used to control the electric push rod to extend, so that the extrusion between the arc plate and the copper wire becomes greater, thereby contacting the copper wire and making the copper wire tighter, or the speed of the rotating shaft releasing the copper wire becomes slower, making the copper wire tighter.

[0025] 4. By setting the roller, when the copper wire is not in contact with the pressure sensor, the friction between the copper wire and the rollers at other positions causes rolling, making it easier for the copper wire to move to the middle of the curved plate and contact the pressure sensor.

[0026] 5. In the actual operation of the present invention, the stator body can be fixedly installed inside the fixing seat, and the winding plate can be extended into the stator body. When the first motor and the cylinder are started at the same time, the winding plate will continuously move up and down inside the stator body, and the stator body will continuously rotate left and right. Through the cooperation of the winding plate and the stator body, the winding of the copper wire and the winding end can be completed. Compared with the traditional rotary winding, the amplitude is smaller and the precision is higher.

[0027] 6. Since the stator body and the winding plate are coordinated at the same time, the rotation amplitude of the stator body during winding can be reduced, the gap generated after the copper wire is wound can be reduced, and the tightness of the copper wire after winding can be increased.

[0028] 7. In the actual operation of the present invention, after the copper wire passes through the connecting tube and the through-hole, as the copper wire is wound and released, the outer side of the copper wire will rub against the inner side of the frustum-shaped through-hole. Since the bottom radius of the through-hole is small, the through-hole can be used to scrape off dust and impurities on the outside of the copper wire, thereby ensuring the cleanliness of the copper wire during winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the adaptive control device for the winding tension of the motor stator coil of the present invention.

[0030] Figure 2 For the present invention Figure 1 The enlarged schematic diagram at position A in the figure.

[0031] Figure 3 For the present invention Figure 1 The enlarged schematic diagram at position B in the figure.

[0032] Figure 4 This is a schematic structural diagram of the winding end of the present invention.

[0033] Figure 5 This is a schematic structural diagram of the connecting pipe and the sponge pad of the present invention.

[0034] In the figure: 1, base; 2, cylinder; 3, lifting plate; 4, connecting arm; 5, connecting frame; 6, fixed rod; 7, winding plate; 8, fixed seat; 9, first motor; 10, stator body; 11, groove; 12, electric push rod; 13, arc plate; 14, pressure sensor; 15, roller; 16, copper wire; 17, connecting pipe; 18, through port; 19, sponge pad; 20, winding end; 21, middle rotating shaft; 22, second motor; 23, cleaning sleeve; 24, slide rail; 25, fixing frame; 26, winding shaft. Specific embodiments

[0035] The present invention provides a motor stator coil winding tension adaptive control device as Figures 1 to 5 shown in the figure. By means of the control device, the tension of the copper wire 16 during winding can be controlled, so as to avoid the copper wire 16 maintaining the same winding force all the time during winding.

[0036] Specifically, it includes a lifting plate 3. One side of the lifting plate 3 is rotatably connected with a connecting arm 4. A driving motor can be installed inside the lifting plate 3, and one end of the driving motor is fixedly connected with the connecting arm 4. By starting the driving motor, the connecting arm 4 can be driven to rotate for angle adjustment.

[0037] The connecting arm 4 is arranged in an L shape, and a fixed rod 6 is fixed at the bottom of one end of the connecting arm 4. The bottom end of the fixed rod 6 is connected with a winding plate 7. A base 1 is arranged below the lifting plate 3. A plurality of cylinders 2 are fixedly connected to the top end of the base 1, and the top ends of the plurality of cylinders 2 are fixed to the bottom end of the lifting plate 3. One side of the top end of the base 1 is fixed with a slide rail 24, and the lifting plate 3 is slidably matched with the slide rail 24.

[0038] Above the connecting arm 4, a middle rotating shaft 21 is rotatably arranged. A copper wire 16 is wound around the middle rotating shaft 21. The copper wire 16 is used for winding work. One end of the copper wire 16 is wound on a winding shaft 26. The winding shaft 26 is rotatably connected to a fixing frame 25. One side of the fixing frame 25 is fixed with a second motor 22. The driving shaft of the second motor 22 is fixedly connected to one end of the winding shaft 26. The copper wire 16 passes through a winding plate 7. The top end of the lifting plate 3 is fixed with a connecting frame 5. One end of the connecting frame 5 is fixed with a support frame at the bottom. The middle rotating shaft 21 is rotatably connected inside the support frame, and the support frame can support the middle rotating shaft 21.

[0039] One side of the fixing frame 25 is fixed with a second motor 22. The driving shaft of the second motor 22 is fixedly connected to one end of the winding shaft 26. When the second motor 22 is started, the winding shaft 26 can be driven to rotate forward and backward through the driving shaft, so as to control the tensioning or relaxation of the output copper wire 16. The middle rotating shaft 21 transfers the copper wire 16, avoiding the copper wire 16 from falling due to too long release distance, and playing a supporting role.

[0040] The bottom end of the fixing seat 8 is fixed with a first motor 9. The driving shaft of the first motor 9 is connected to the bottom of the fixing seat 8. The fixing seat 8 is arranged below the connecting arm 4. A stator body 10 is installed inside the fixing seat 8. A plurality of winding ends 20 are fixed on the inner ring of the stator body 10. The copper wire 16 is wound on the winding ends 20.

[0041] In the actual operation of the present invention, the stator body 10 can be fixedly installed inside the fixing seat 8, and the winding plate 7 can be extended into the stator body 10. When the first motor 9 and the cylinder 2 are started simultaneously, the winding plate 7 will continuously move up and down inside the stator body 10, and at the same time, the stator body 10 will continuously rotate left and right. Through the cooperation of the winding plate 7 and the stator body 10, the winding of the copper wire 16 and the winding ends 20 can be completed.

[0042] Since the stator body 10 and the winding plate 7 cooperate simultaneously, the rotation amplitude of the stator body 10 during winding can be reduced, the gaps generated after the copper wire 16 is wound can be reduced, and the tightness of the copper wire 16 after winding can be increased.

[0043] On one side of the top end of the connecting arm 4, a groove 11 is opened. An electric push rod 12 is fixed inside the groove 11. One end of the electric push rod 12 is connected with an arc plate 13. A pressure sensor 14 is embedded in the middle of the arc plate 13. Roller shafts 15 are arranged on both sides of the pressure sensor 14. The roller shafts 15 are embedded inside the inner side of the arc plate 13. A controller is arranged inside the lifting plate 3. The pressure sensor 14 is connected to the controller, and the controller is connected to the electric push rod 12 and the second motor 22.

[0044] In the actual operation of the invention, by providing the arc-shaped plate 13, the passing copper wire 16 can be protected and isolated, preventing the copper wire 16 from coming into contact with the edges and corners of the connecting arm 4, which may cause abrasion damage to the copper wire 16, and avoiding damage to the copper wire 16 when the connecting arm 4 rotates.

[0045] Due to the blocking effect of the arc-shaped plate 13, when the copper wire 16 comes into contact with the arc-shaped plate 13, the copper wire 16 will be pressed against the pressure sensor 14. The pressure sensor 14 will detect the extrusion force of the copper wire 16. If the extrusion force is too large, it indicates that the tightness of the copper wire 16 is relatively high. At this time, the electric push rod 11 can be retracted or the second motor 22 can be used to release the copper wire 16 faster to reduce the tightness of the copper wire 16 and avoid breakage of the wound copper wire 16 due to excessive tension.

[0046] Similarly, if the pressure sensor 14 detects that the extrusion force of the copper wire 16 is too small, the controller can be used to control the electric push rod 11 to extend, increasing the extrusion between the arc-shaped plate 13 and the copper wire 16, thereby pressing against the copper wire 16 to increase the tightness of the copper wire 16, or slowing down the speed at which the middle rotating shaft 21 releases the copper wire 16 to increase the tightness of the copper wire 16.

[0047] By providing the roller 15, when the copper wire 16 is not in contact with the pressure sensor 15, the copper wire 16 will roll due to friction with the roller 15 at other positions, making it easier for the copper wire 16 to move to the middle of the arc-shaped plate 13 and come into contact with the pressure sensor 15.

[0048] It should be noted that the roller 15 is embedded in the arc-shaped plate 13, and the protruding part is relatively shallow to prevent the protruding part of the roller 15 from blocking the movement of the copper wire 16.

[0049] Furthermore, a timer is installed inside the lifting plate 3. '

[0050] Timing can be carried out through the timer. As the winding time of the copper wire 16 on a single winding end 20 increases, the controller can automatically control the retraction of the electric push rod 11 or make the second motor 22 release the copper wire 16 faster to reduce the tension of the copper wire 16 and automatically adapt to the winding operation.

[0051] One end of the bottom of the winding plate 7 is provided with a through port 18 for the copper wire 16 to pass through. One end of the through port 18 is threadedly installed with a connecting pipe 17. The inner top end of the connecting pipe 17 is fixed with a cleaning sleeve 23. A tapered through port is provided inside the cleaning sleeve 23, with the radius of the bottom end of the cone being smaller than that of the top end. The cleaning sleeve 23 is elastic. A sponge pad 19 is provided below the cleaning sleeve 23, and the sponge pad 19 is fixed to the inner wall of the connecting pipe 17. The mutually remote ends of the cleaning sleeve 23 and the sponge pad 19 both extend out of the connecting pipe 17 to prevent contact with the edges and corners of the copper wire 16.

[0052] In the actual operation of the present invention, when the copper wire 16 passes through the connecting pipe 17 and the through-port, as the copper wire 16 is unwound and wound, the outer side of the copper wire 16 will rub against the inner side of the tapered through-port. Since the radius of the bottom end of the through-port is smaller, the through-port can scrape off the dust and impurities on the outer side of the copper wire 16 to ensure the cleanliness of the copper wire 16 during winding.

[0053] Furthermore, a sponge pad 19 is provided below the through-port. The sponge pad 19 can further wipe the outer side of the cleaned copper wire 16 to prevent moisture or excess impurities in the air from adhering. At the same time, the wrapping and clamping of the sponge pad 19 can prevent the copper wire 16 from rubbing against the inner wall of the connecting pipe 17, causing damage to the copper wire 16.

[0054] At the same time, the sponge pad 19 and the cleaning sleeve 23 inside the connecting pipe 17 can also play a guiding role.

[0055] One side of the groove 11 close to the arc-shaped plate 13 communicates with the outside. The bottom end of the groove 11 penetrates the connecting arm 4, and one side of the groove 11 close to the arc-shaped plate 13 opens outward, which can accommodate the arc-shaped plate 13 into the inside of the groove 11, increasing the retraction distance of the arc-shaped plate 13.

[0056] The present invention also discloses a method for adaptively controlling the winding tension of the motor stator coil, including the following steps:

[0057] S1. Install the stator body 10 inside the fixed seat 8, so that the copper wire 16 on the middle rotating shaft 21 passes through the arc-shaped plate 13 and the connecting pipe 17 in sequence, and the winding plate 7 extends into the stator body 10 to complete winding.

[0058] S2. Start the first motor 9 and the cylinder 2, so that the winding plate 7 continuously moves up and down, and at the same time the stator body 10 continuously rotates left and right to complete the winding of the copper wire 16 and the winding end 20.

[0059] S3. The copper wire 16 passes through the arc-shaped plate 13 and contacts the pressure sensor 14 to detect the extrusion force of the copper wire 16, and then use the second motor 22 to control the winding and unwinding degree of the copper wire 16 on the middle rotating shaft 21 to adaptively adjust the tension of the copper wire 16.

[0060] S3. It can be timed by a timer. As the winding time of the copper wire 16 on a single winding end 20 increases, the controller can automatically control the electric push rod 11 to retract or make the second motor 22 release the copper wire 16 faster to reduce the tension of the copper wire 16 and automatically adapt to the winding work.

Claims

1. An adaptive control device for the winding tension of a motor stator coil, comprising a lifting plate (3), characterized in that: One side of the lifting plate (3) is rotatably connected to a connecting arm (4). The connecting arm (4) is L-shaped, and a fixing rod (6) is fixed to the bottom of one end of the connecting arm (4). The bottom end of the fixing rod (6) is connected to a wire winding plate (7). One side of the top end of the connecting arm (4) is provided with a groove (11). An electric push rod (12) is fixed in the groove (11). One end of the electric push rod (12) is connected to an arc-shaped plate (13). A pressure sensor (14) is embedded in the middle of the arc-shaped plate (13). A middle rotating shaft (21) is rotatably arranged above the connecting arm (4). A copper wire (16) is wound around the middle rotating shaft (21). The copper wire (16) sequentially passes through the arc-shaped plate (13) and the wire winding plate (7). Roller shafts (15) are arranged on both sides of the pressure sensor (14). The roller shafts (15) are embedded in the inner side of the arc-shaped plate (13).

2. The motor stator coil winding tension adaptive control device according to claim 1, characterized in that: One side of the bottom end of the wire winding plate (7) is provided with a through port (18) for the copper wire (16) to pass through. One end of the through port (18) is threadedly installed with a connecting pipe (17). One end of the copper wire (16) is wound around a winding shaft (26). The winding shaft (26) is rotatably connected to a fixing frame (25). One side of the fixing frame (25) is fixed with a second motor (22). The driving shaft of the second motor (22) is fixedly connected to one end of the winding shaft (26).

3. The motor stator coil winding tension adaptive control device according to claim 1, wherein: A cleaning sleeve (23) is fixed to the inner top end of the connecting pipe (17). A tapered through port is formed inside the cleaning sleeve (23). The radius of the bottom end of the cone is smaller than that of the top end. The cleaning sleeve (23) has elasticity.

4. The motor stator coil winding tension adaptive control device according to claim 3, characterized in that: A sponge pad (19) is arranged below the cleaning sleeve (23). The sponge pad (19) is fixed to the inner wall of the connecting pipe (17). The mutually remote ends of the cleaning sleeve (23) and the sponge pad (19) both extend out of the connecting pipe (17).

5. The motor stator coil winding tension adaptive control device according to claim 1, characterized in that: A connecting frame (5) is fixed to the top end of the lifting plate (3). A support frame is fixed to the bottom of one end of the connecting frame (5). The middle rotating shaft (21) is rotatably connected inside the support frame.

6. The motor stator coil winding tension adaptive control device according to claim 1, characterized in that: A fixing seat (8) is arranged below the connecting arm (4). A stator body (10) is installed in the fixing seat (8). A plurality of winding ends (20) are fixed to the inner circle of the stator body (10). The copper wire (16) is wound around the winding ends (20).

7. The motor stator coil winding tension adaptive control device according to claim 6, characterized in that: A first motor (9) is fixed to the bottom end of the fixing seat (8). The driving shaft of the first motor (9) is connected to the bottom of the fixing seat (8).

8. The motor stator coil winding tension adaptive control device according to claim 1, characterized in that: A base (1) is arranged below the lifting plate (3). A plurality of cylinders (2) are fixedly connected to the top end of the base (1). The top ends of the plurality of cylinders (2) are fixed to the bottom end of the lifting plate (3). A slide rail (24) is fixed to one side of the top end of the base (1). The lifting plate (3) is slidably matched with the slide rail (24). A controller and a timer are arranged inside the lifting plate (3).

9. The motor stator coil winding tension adaptive control device according to claim 8, characterized in that: One side of the groove (11) close to the arc-shaped plate (13) is communicated with the outside. The bottom end of the groove (11) penetrates through the connecting arm (4), and the side of the groove (11) close to the arc-shaped plate (13) opens outward.

10. Method for adaptively controlling winding tension of motor stator coil, characterized in that: Comprising the motor stator coil winding tension adaptive control device as described in any one of claims 1-9, it further includes the following steps: S1. Install the stator body (10) inside the fixed seat (8), such that the copper wire (16) on the middle rotating shaft (21) passes through the arc-shaped plate (13) and the connecting pipe (17) in sequence, and the winding plate (7) extends into the stator body (10); S2. Start the first motor (9) and the cylinder (2), such that the winding plate (7) moves up and down continuously, and at the same time the stator body (10) rotates left and right continuously, to complete the winding of the copper wire (16) and the winding end (20); S3. The copper wire (16) passes through the arc-shaped plate (13) and contacts the pressure sensor (14) to detect the extrusion force of the copper wire (16), thereby using the second motor (22) to control the winding and unwinding degree of the copper wire (16) on the middle rotating shaft (21) for adaptively adjusting the tension of the copper wire (16).

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