External winding device of winding machine

Abstract

The invention discloses an external winding device of a winding machine. The external winding device comprises a clamp and a clamping stator outer ring, and the clamp is arranged in a self-rotation mode. The wire carrying assembly is provided with a wire fixing part and a moving assembly, the wire fixing part is provided with an inlet for a copper wire to penetrate in, and the wire fixing part is arranged on the moving assembly; the wire lifting part is arranged below the stator, the driving part drives the wire lifting part to be close to or away from the stator, and the wire lifting part is used for pushing the copper wire upwards from the position close to the end of the stator to a designated position. The wire fixing part, the wire lifting part and the clamp move in a matched mode, the coordination of overall operation is improved, the interval and waiting time of part of assemblies is shortened, and the effects that the winding efficiency and quality are higher are achieved.

Description

Technical Field

[0001] The invention relates to the field of stator processing, in particular to an outer winding device of a winding machine. Background Art

[0002] The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate current. The stator includes a base outer ring, a stator core, and a copper wire coil wound on the core. Due to the operating principle of the stator, adjacent cores cannot be wound on the same copper wire. Therefore, after winding one of the cores, the copper wire needs to be brought out of the insulating outer ring, and then the copper wire is pulled outside the outer ring to the next core that needs to be wound on the same copper wire, and then the copper wire is brought into the outer ring for winding.

[0003] The applicant believes that after the traditional outer winding device pulls out the copper wire and then brings it into the outer ring, the copper wire is prone to loosening on the outer periphery of the outer ring, which in turn causes multiple overlapping copper wires in the vertical direction to abut or entangle with each other, which can easily cause a short circuit in the stator. In addition, the outer winding device clamps the copper wire with its own clamp, and the coating on the outer periphery of the copper wire is easily worn during the pulling process. Summary of the invention

[0004] The invention provides an outer winding device of a winding machine, and provides a mode of cooperation between a winding device and a stator clamp to improve the fastening degree of the stator outer winding, so that the copper wire of the stator can be firmly attached to the outer peripheral wall of the stator outer ring after being wound outward, and the copper wire is avoided from being worn.

[0005] The external winding device of a winding machine provided by the present invention adopts the following technical solution:

[0006] An external winding device of a winding machine, comprising

[0007] A fixture, clamping the stator outer ring, wherein the fixture is arranged to rotate on its own;

[0008] The strip wire assembly is provided with a wire fixing part and a moving assembly, wherein the wire fixing part is provided with an entrance for the copper wire to pass through, and the wire fixing part is arranged on the moving assembly;

[0009] The wire lifting part and the driving member, wherein the wire lifting part is arranged below the stator, the driving member drives the wire lifting part to approach the stator or move away from the stator, and the wire lifting part is used to push the copper wire upward from a position close to the end of the stator to a specified position.

[0010] When winding the stator, one end of the copper wire is fixed by the winding machine, and the other end is wound on the winding machine's receiving wheel. When the copper wire is subjected to tension, the receiving wheel rotates to release the wire. When the winding assembly of the winding machine pulls the copper wire for winding, both ends of the copper wire are restricted by the outside world. Therefore, the part from the fixed end of the copper wire to the winding assembly and from the winding assembly to the outlet end are in a straightened state.

[0011] The fixture clamps the outer ring of the stator. When the winding of a stator core is completed, the moving assembly drives the wire assembly to move to the bottom of the stator, so that the copper wire moves from the entrance of the wire fixing part to the inside of the wire fixing part, and then the moving assembly drives the wire assembly to move outside the stator, thereby bringing one end of the copper wire out of the stator.

[0012] After the copper wire is brought out of the stator, the clamp rotates to drive the stator to rotate. At this time, since the copper wire is in a straightened state, after the copper wire is brought out of the stator, it is restricted by the gap corresponding to the stator core and is difficult to slide along the end of the stator. Therefore, the copper wire is restricted by the wire fixing part and is stretched. The receiving wheel is forced to release the wire. At this time, the copper wire from the gap to the wire fixing part is attached to the stator outer ring due to the obstruction of the rotating stator outer ring.

[0013] When the copper wire extends to the next stator core that needs to be wound, the moving assembly assists the wire fixing part to move into the stator and release the copper wire, so that the copper wire is inserted into the stator again, and then the moving assembly drives the wire fixing part to retreat. After the wire fixing part retreats, the wire lifting part moves close to the copper wire until it contacts the copper wire on the outer periphery of the stator outer ring, thereby pushing the copper wire upward until the copper wire is flush with the top of the notch. Since both ends of the copper wire are in a tensioned state, the copper wire can always be in a state of fitting the outer periphery of the stator when the wire lifting part moves upward.

[0014] Preferably, the moving assembly includes a moving module, a base and a rotating member, the wire fixing part is rotatably connected to the base via the rotating member, the moving module is used to drive the wire fixing part to move on the X-axis and the Y-axis, and the rotating member drives the wire fixing part to rotate so that the entrance of the wire fixing part moves outside the stator.

[0015] When the copper wire needs to be removed from the stator, the moving module drives the wire fixing part to move on the X-axis and Y-axis, that is, drives the wire fixing part to make the required displacement on one surface, so that the wire fixing part can be close to the stator until the copper wire passes through the entrance into the wire fixing part. After the copper wire passes through the wire fixing part, the rotating part drives the wire fixing part to rotate, so that the entrance of the wire fixing part drives the copper wire to rotate out of the stator together, thereby taking the copper wire out of the stator, and using the straightened state of the copper wire to push the copper wire out of the stator, avoiding the situation where the traditional clamp damages the outer peripheral coating of the stator copper wire.

[0016] When the fixture drives the stator to rotate to the next iron core, the wire fixing part rotates and resets, so that the copper wire is brought into the stator again, and then the moving module drives the wire fixing part to retreat, completing the copper wire outward bringing action.

[0017] Preferably, the wire lifting portion is in a circular ring shape, and the driving member drives the wire lifting portion to approach the stator and sleeve on the outer circumference of the stator. When the wire lifting portion is sleeved on the outer circumference of the stator, the top wall of the wire lifting portion abuts against the copper wire on the outer circumference of the stator outer ring.

[0018] Since the outer circumference of the stator is in a circular ring shape, the wire lifting part is set to be in a circular ring shape so that the distance from the top of the wire lifting part to the bottom of the stator is equal, so that the wire lifting force of the wire lifting part on the outer circumference of the stator is equal and the lifting height is balanced.

[0019] Preferably, the rotating member includes a cylinder, a driving rod and a connecting rod. The length of the driving rod is greater than that of the connecting rod. The driving rod is connected to the cylinder output shaft. The fixed line portion includes a linkage plate. One end of the connecting rod is rotatably connected to the linkage plate. The other end of the connecting rod is fixed on the base. The end of the driving rod away from the cylinder is rotatably connected to the linkage plate. The cylinder is rotatably connected to the base.

[0020] The cylinder is activated, causing the drive rod to telescope, thereby pushing the linkage plate, causing the position of the linkage plate to change. One end of the linkage plate is restricted by the movement of the connecting rod, and the linkage plate pushes the end of the connecting rod and rotates itself. Therefore, the essence of the linkage plate's movement is self-rotation, that is, the fixed wire part itself rotates, thereby driving the copper wire inside it to move. Although there is a long distance between the fixed wire part and the cylinder, the actual rotation point of the fixed wire part is at the end of the drive rod, so that the length of the copper wire hooked out is small, which is convenient for subsequent threading into the stator.

[0021] Preferably, the linkage plate is a rectangular plate, the ends of the connecting rod and the driving rod are respectively arranged at two vertices of the diagonal line of the linkage plate, and the connecting rod is provided with an avoidance groove, and the avoidance groove is used to avoid the linkage plate.

[0022] The diagonals of the rectangular plate are the two places with the largest spacing inside the rectangular plate. Placing the ends of the connecting rod and the driving rod at the two vertex corners is beneficial to reducing the volume required for the linkage plate, further simplifying the wire assembly, and making the movement of the wire hook part more flexible.

[0023] Preferably, the wire fixing part also includes a wire wheel, which is arranged at another top corner of the linkage plate, and the wire wheel has a wire threading groove along the circumferential direction. When the copper wire is located in the wire fixing part, the copper wire is adapted to be embedded in the wire threading groove.

[0024] When the wire fixing part rotates, the copper wire rubs against the component it abuts against. The wire threading groove in the wire wheel can limit the movement of the copper wire on the one hand, and reduce the area of ​​friction with the copper wire on the other hand. When the wire fixing part rotates, the wire threading groove changes position and angle relative to the copper wire. The annular wire threading groove can improve the stability of the copper wire embedded in the wire fixing part and reduce the situation where the copper wire is separated from the wire fixing part due to the rotation of the wire fixing part.

[0025] Preferably, the linkage plates are provided with two pieces, the end of the connecting rod and the end of the driving rod are both clamped between the two linkage plates, a mounting plate is also provided on the side of the wire wheel away from the linkage plate, a wheel axle is fixedly connected to the center of the wire wheel, a connecting plate is provided between the two linkage plates, the wheel axle is threadedly connected to the connecting plate, a nut is threadedly connected to one end of the wheel axle away from the connecting plate, and the nut presses the mounting plate against the side wall of the wire wheel.

[0026] On the one hand, the mounting plate acts as an anti-slip part of the nut, making it difficult for the wire wheel to separate from the linkage plate. On the other hand, it acts as a gasket between the wire wheel and the nut, which is beneficial to protecting the wire wheel. And if the copper wire falls off from the threading groove, the mounting plate can still serve as a structure to prevent the copper wire from separating from the fixed wire part, which serves as the last layer of guarantee for the stability of the hooking wire.

[0027] Preferably, the clamp is driven to rotate by a frameless motor, the clamp is connected to the frameless motor, the driving shaft of the wire lifting part passes through the inner ring space of the frameless motor, and the outer diameter of the wire lifting part is smaller than the inner diameter of the frameless motor.

[0028] The frameless motor drives the fixture to rotate, which can improve the stability of the fixture's rotation on the one hand, and avoid the wire lifting part on the other hand. The inner ring of the frameless motor can be used to accommodate part of the wire lifting part to avoid the overall device being too complicated.

[0029] Preferably, a limiting ring is further provided on the inner periphery of the wire lifting portion, and when the limiting ring slides to abut against the bottom wall of the stator outer ring, a gap is left between the top wall of the wire lifting portion and the portion clamped by the clamp on the stator outer periphery.

[0030] When the wire lifting part slides up until the limiting part abuts against the bottom wall of the stator outer ring, a distance is left between the wire lifting part and the clamp. The setting of the limiting part can structurally limit the collision between the wire lifting part and the stator clamp, which is beneficial to protecting the wire lifting part and the clamp.

[0031] Preferably, the driving member has a plurality of different preset heights for lifting the wire lifting portion, and the plurality of preset heights are set corresponding to the number of notches of different heights of the stator.

[0032] The upward sliding distance of the wire lifting part is adjusted according to the depth of the notch, so as to push the copper wire to the bottom of the notch, and maximize the use of the depth characteristics of the notch to set the copper wire, so that the copper wires corresponding to different notches are pushed to different positions, avoiding the situation where multiple copper wires abut against each other and cause conduction.

[0033] In summary, the present invention includes the following beneficial technical effects:

[0034] 1. When winding the stator, one end of the copper wire will be fixed by the winding machine, and the other end will be wound on the winding machine's receiving wheel. When the copper wire is subjected to tension, the receiving wheel rotates to release the wire. When the winding assembly of the winding machine pulls the copper wire for winding, both ends of the copper wire are restricted by the outside world. Therefore, the part from the fixed end of the copper wire to the winding assembly and from the winding assembly to the outlet end are in a straightened state.

[0035] The fixture clamps the outer ring of the stator. When the winding of a stator core is completed, the moving assembly drives the wire assembly to move to the bottom of the stator, so that the copper wire moves from the entrance of the wire fixing part to the inside of the wire fixing part, and then the moving assembly drives the wire assembly to move outside the stator, thereby bringing one end of the copper wire out of the stator.

[0036] After the copper wire is brought out of the stator, the clamp rotates to drive the stator to rotate. At this time, since the copper wire is in a straightened state, after the copper wire is brought out of the stator, it is restricted by the gap corresponding to the stator core and is difficult to slide along the end of the stator. Therefore, the copper wire is restricted by the wire fixing part and is stretched. The receiving wheel is forced to release the wire. At this time, the copper wire from the gap to the wire fixing part is attached to the stator outer ring due to the obstruction of the rotating stator outer ring.

[0037] 2. When the copper wire extends to the next stator core that needs to be wound, the moving assembly assists the wire fixing part to move into the stator and release the copper wire, so that the copper wire is inserted into the stator again, and then the moving assembly drives the wire fixing part to retreat. After the wire fixing part retreats, the wire lifting part moves close to the copper wire until it contacts the copper wire on the outer periphery of the stator outer ring, thereby pushing the copper wire upward until the copper wire is flush with the top of the notch. Since both ends of the copper wire are in a taut state, the copper wire can always be in a state of fitting the outer periphery of the stator when the wire lifting part moves upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The utility model is a schematic diagram of the overall structure of an outer winding device of a winding machine of the present invention.

[0039] Figure 2 It is a schematic diagram of the overall structure of an outer winding device of a winding machine of the present invention from another angle.

[0040] Figure 3 It is a structural diagram used to illustrate the positional relationship between the wire lifting part and the stator.

[0041] Explanation of the reference numerals in the accompanying drawings: 1. Clamp; 2. Stator; 21. Outer ring; 22. Iron core; 23. Notch; 3. Wire fixing part; 31. Linkage plate; 32. Wire wheel; 33. Threading groove; 34. Mounting plate; 35. Nut; 4. Base; 5. Rotating part; 51. Cylinder; 52. Driving rod; 53. Connecting rod; 54. Avoidance groove; 6. Frameless motor; 7. Wire lifting part; 8. Limiting ring. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-3 The present invention is described in further detail.

[0043] The embodiment of the invention discloses an external winding device of a winding machine.

[0044] Reference Figure 1 as well as Figure 2 , an outer winding device of a winding machine, comprising

[0045] The fixture 1 is used to clamp the stator outer ring 21, and the fixture 1 is arranged to rotate;

[0046] The strip wire assembly is provided with a wire fixing part 3 and a moving assembly, the wire fixing part 3 is provided with an entrance for the copper wire to pass through, and the wire fixing part 3 is arranged on the moving assembly;

[0047] The wire lifting part 7 and the driving member, the wire lifting part 7 is arranged below the stator 2, the driving member drives the wire lifting part 7 to approach the stator 2 or move away from the stator 2, and the wire lifting part 7 is used to push the copper wire upward from a position close to the end of the stator 2 to a specified position.

[0048] When winding the stator 2, one end of the copper wire is fixed by the winding machine, and the other end is wound on the receiving wheel of the winding machine. When the copper wire is subjected to tension, the receiving wheel rotates to release the wire. When the winding assembly of the winding machine pulls the copper wire for winding, both ends of the copper wire are restricted by the outside world. Therefore, the portion between the fixed end of the copper wire to the winding assembly and the winding assembly to the outlet end is in a straightened state.

[0049] In order to limit the copper wire wound outside the stator 2, the outer ring 21 of the stator 2 is generally provided with a plurality of notches to limit the copper wire from sliding along the end of the stator 2, and the plurality of notches are arranged one by one corresponding to the stator core 22.

[0050] The clamp 1 clamps the outer ring 21 of the stator 2. When the winding of a stator core 22 is completed, the moving component drives the wire assembly to move to the bottom of the stator 2, so that the copper wire moves from the entrance of the wire fixing part 3 to the inside of the wire fixing part 3, and then the moving component drives the wire assembly to move outside the stator 2, thereby bringing one end of the copper wire out of the stator 2.

[0051] After the copper wire is brought out of the stator 2, the clamp 1 rotates to drive the stator 2 to rotate. At this time, since the copper wire is in a straightened state, after the copper wire is brought out of the stator 2, it is restricted by the notch 23 corresponding to the stator core 22 and is difficult to slide along the end of the stator 2. Therefore, the copper wire is restricted by the wire fixing part 3 and is stretched, and the receiving wheel is forced to release the wire. At this time, the copper wire from the notch 23 to the wire fixing part 3 is attached to the stator outer ring 21 due to the obstruction of the rotating stator outer ring 21.

[0052] When the copper wire extends to the next stator core 22 where the wire needs to be wound, the moving assembly assists the wire fixing part 3 to move into the stator 2 and release the copper wire, so that the copper wire is inserted into the stator 2 again, and then the moving assembly drives the wire fixing part 3 to retreat. After the wire fixing part 3 retreats, the wire lifting part 7 moves close to the copper wire until it abuts against the copper wire on the outer periphery of the stator outer ring 21, thereby pushing the copper wire upward until the copper wire is flush with the top of the notch 23. Since both ends of the copper wire are in a tensioned state, the copper wire can always be in a state of fitting the outer periphery of the stator 2 when the wire lifting part 7 moves upward.

[0053] The wire fixing part 3 and the wire lifting part 7 cooperate with the clamp 1 to improve the coordination of the overall operation, reduce the interval between some components and the waiting time, and make the winding efficiency and quality higher.

[0054] Reference Figure 1 as well as Figure 3 In this embodiment, the moving assembly includes a moving module, a base 4 and a rotating member 5. The fixed line part 3 is rotatably connected to the base 4 through the rotating member 5. The moving module is used to drive the fixed line part 3 to move on the X-axis and the Y-axis. The rotating member 5 drives the fixed line part 3 to rotate so that the entrance of the fixed line part 3 moves to the outside of the stator 2.

[0055] When the copper wire needs to be removed from the stator 2, the moving module drives the wire fixing part 3 to move on the X-axis and the Y-axis, that is, drives the wire fixing part 3 to make the required displacement on one surface, so that the wire fixing part 3 can be close to the stator 2 until the copper wire passes through the entrance into the wire fixing part 3. After the copper wire passes through the wire fixing part 3, the rotating member 5 drives the wire fixing part 3 to rotate, so that the entrance of the wire fixing part 3 drives the copper wire to rotate out of the stator 2, thereby taking the copper wire out of the stator 2, and using the straightened state of the copper wire to push the copper wire out of the stator 2, so as to avoid the situation where the conventional clamp 1 damages the outer peripheral coating of the stator 2 copper wire.

[0056] When the clamp 1 drives the stator 2 to rotate to the next iron core 22, the wire fixing part 3 rotates back to reset, so that the copper wire is brought into the stator 2 again, and then the moving module drives the wire fixing part 3 to retreat, completing the outer bringing action of the copper wire.

[0057] Reference Figure 1 as well as Figure 3In this embodiment, the wire lifting portion 7 is in a circular ring shape, and the driving member drives the wire lifting portion 7 to approach the stator 2 and be sleeved on the outer periphery of the stator 2. When the wire lifting portion 7 is sleeved on the outer periphery of the stator 2, the top wall of the wire lifting portion 7 abuts against the copper wire on the outer periphery of the stator outer ring 21.

[0058] Since the outer circumference of the stator 2 is in a circular ring shape, the wire lifting portion 7 is set to be in a circular ring shape so that the distance from the top of the wire lifting portion 7 to the bottom of the stator 2 is equal, so that the wire lifting force of the wire lifting portion 7 on the outer circumference of the stator 2 is equal and the lifting height is balanced.

[0059] Reference Figure 1 as well as Figure 3 In this embodiment, the rotating member 5 includes a cylinder 51, a driving rod 52 and a connecting rod 53. The length of the driving rod 52 is greater than that of the connecting rod 53. The driving rod 52 is connected to the output shaft of the cylinder 51. The fixed line portion 3 includes a linkage plate 31. One end of the connecting rod 53 is rotatably connected to the linkage plate 31. The other end of the connecting rod 53 is fixed on the base 4. The end of the driving rod 52 away from the cylinder 51 is rotatably connected to the linkage plate 31. The cylinder 51 is rotatably connected to the base 4.

[0060] The cylinder 51 is started, so that the driving rod 52 moves telescopically, thereby pushing the linkage plate 31, so that the position of the linkage plate 31 changes. One end of the linkage plate 31 is restricted by the movement of the connecting rod 53. The linkage plate 31 pushes the end of the connecting rod 53 and rotates itself. Therefore, for the linkage plate 31, the essence of the movement of the linkage plate 31 is self-rotation, that is, the wire fixing part 3 itself rotates, thereby driving the copper wire inside it to move. Although there is a long distance between the wire fixing part 3 and the cylinder 51, the actual rotation point of the wire fixing part 3 is at the end of the driving rod 52, so that the length of the copper wire hooked out is small, which is convenient for threading it into the stator 2 again later.

[0061] Reference Figure 1 as well as Figure 3 In this embodiment, when the elongation of the driving rod 52 reaches the maximum, the linkage plate 31 is perpendicular to the connecting rod 53; when the elongation of the driving rod 52 reaches the minimum, the linkage plate 31 is parallel to the connecting plate.

[0062] The cylinder 51 drives the driving rod 52 to extend or shorten the length limit, thereby limiting the two states of the fixing part 3. On the one hand, it can limit the excessive rotation of the fixing part 3, and on the other hand, it can avoid the need to additionally limit the extension of the cylinder 51 to reduce the complexity of the device setting.

[0063] Reference Figure 1 as well as Figure 3In this embodiment, the linkage plate 31 is a rectangular plate, the ends of the connecting rod 53 and the driving rod 52 are respectively arranged at the two vertices of the diagonal line of the linkage plate 31, and the connecting rod 53 is provided with an avoidance groove 54, which is used to avoid the linkage plate 31.

[0064] The diagonals of the rectangular plate are the two places with the largest internal spacing of the rectangular plate. Placing the ends of the connecting rod 53 and the driving rod 52 at the two vertex corners is beneficial to reducing the volume required for the linkage plate 31, further simplifying the wire assembly, and making the movement of the wire hook part more flexible.

[0065] Reference Figure 1 as well as Figure 3 In this embodiment, the wire fixing part 3 also includes a wire wheel 32, which is arranged at another top corner of the linkage plate 31. The wire wheel 32 has a wire threading groove 33 along the circumferential direction. When the copper wire is located in the wire fixing part 3, the copper wire is adapted to be embedded in the wire threading groove 33.

[0066] When the wire fixing part 3 rotates, the copper wire rubs against the component it abuts against. The threading groove 33 in the wire wheel 32 can, on the one hand, limit the movement of the copper wire, and on the other hand, reduce the area of ​​friction with the copper wire. When the wire fixing part 3 rotates, the threading groove 33 changes position and angle relative to the copper wire. The annular threading groove 33 can improve the stability of the copper wire embedded in the wire fixing part 3 and reduce the situation where the copper wire is separated from the wire fixing part 3 due to the rotation of the wire fixing part 3.

[0067] Reference Figure 1 as well as Figure 3 In this embodiment, two linkage plates 31 are provided, and the end of the connecting rod 53 and the end of the driving rod 52 are both clamped between the two linkage plates 31. A mounting plate 34 is also provided on the side of the wire wheel 32 away from the linkage plate 31. A wheel axle is fixedly connected to the center of the wire wheel 32. A connecting plate is provided between the two linkage plates 31. The wheel axle is threadedly connected to the connecting plate. A nut 35 is threadedly connected to the end of the wheel axle away from the connecting plate. The nut 35 presses the mounting plate 34 against the side wall of the wire wheel 32.

[0068] The mounting plate 34 serves as an anti-slip member for the nut 35, so that the wire wheel 32 is not easily separated from the linkage plate 31. On the other hand, it serves as a gasket between the wire wheel 32 and the nut 35, which is beneficial to protecting the wire wheel 32. In addition, if the copper wire falls off from the threading groove 33, the mounting plate 34 can still serve as a structure to prevent the copper wire from being separated from the wire fixing part 3, so as to serve as the last layer of guarantee for the stability of the wire hooking.

[0069] Reference Figure 1 as well as Figure 3 In this embodiment, the clamp 1 is driven to rotate by the frameless motor 6, the clamp 1 is connected to the frameless motor 6, the driving shaft of the wire lifting part 7 passes through the inner ring space of the frameless motor 6, and the outer diameter of the wire lifting part 7 is smaller than the inner diameter of the frameless motor 6.

[0070] The frameless motor 6 drives the clamp 1 to rotate, which can improve the stability of the rotation of the clamp 1 on the one hand, and avoid the wire lifting part 7 on the other hand. The inner ring of the frameless motor 6 can be used to accommodate part of the wire lifting part 7 to avoid the overall device being too complicated.

[0071] Reference Figure 1 as well as Figure 3 In this embodiment, a limiting ring 8 is further provided on the inner periphery of the wire lifting portion 7. When the limiting ring 8 slides to abut against the bottom wall of the stator outer ring 21, a gap is left between the top wall of the wire lifting portion 7 and the portion of the clamp 1 clamped on the outer periphery of the stator 2.

[0072] When the wire lifting part 7 slides up until the limiting part abuts against the bottom wall of the stator outer ring 21, a distance is left between the wire lifting part 7 and the clamp 1. The setting of the limiting part can structurally limit the collision between the wire lifting part 7 and the stator 2 clamp 1, which is beneficial to protecting the wire lifting part 7 and the clamp 1.

[0073] Reference Figure 1 as well as Figure 3 In the present embodiment, the driving member has a plurality of different preset heights for lifting the wire lifting portion 7 , and the plurality of preset heights are set corresponding to the number of notches of different heights of the stator 2 .

[0074] The upward sliding distance of the wire lifting part 7 is adjusted according to the depth of the notch 23, so as to push the copper wire to the bottom of the notch 23, and maximize the use of the depth characteristics of the notch 23 to set the copper wire, so that the copper wires corresponding to different notches 23 are pushed to different positions, avoiding the situation where multiple copper wires abut against each other and cause conduction.

[0075] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An external winding device of a winding machine, characterized in that: include A fixture, clamping the stator outer ring, wherein the fixture is arranged to rotate on its own; The strip wire assembly is provided with a wire fixing part and a moving assembly, wherein the wire fixing part is provided with an entrance for the copper wire to pass through, and the wire fixing part is arranged on the moving assembly; The wire lifting part and the driving member, wherein the wire lifting part is arranged below the stator, the driving member drives the wire lifting part to approach the stator or move away from the stator, and the wire lifting part is used to push the copper wire upward from a position close to the end of the stator to a specified position.

2. The outer winding device of the winding machine according to claim 1, characterized in that: The moving assembly includes a moving module, a base and a rotating member. The wire fixing part is rotatably connected to the base via the rotating member. The moving module is used to drive the wire fixing part to move on the X-axis and the Y-axis. The rotating member drives the wire fixing part to rotate so that the entrance of the wire fixing part moves to the outside of the stator.

3. The outer winding device of the winding machine according to claim 2, characterized in that: The wire lifting part is in a circular ring shape, and the driving member drives the wire lifting part to approach the stator and sleeve on the outer periphery of the stator. When the wire lifting part is sleeved on the outer periphery of the stator, the top wall of the wire lifting part abuts against the copper wire on the outer periphery of the stator outer ring.

4. The outer winding device of the winding machine according to claim 1, characterized in that: The rotating part includes a cylinder, a driving rod and a connecting rod. The length of the driving rod is greater than that of the connecting rod. The driving rod is connected to the cylinder output shaft. The fixed line part includes a linkage plate. One end of the connecting rod is rotatably connected to the linkage plate. The other end of the connecting rod is fixed on the base. The end of the driving rod away from the cylinder is rotatably connected to the linkage plate. The cylinder is rotatably connected to the base.

5. The outer winding device of the winding machine according to claim 4, characterized in that: The linkage plate is a rectangular plate, the ends of the connecting rod and the driving rod are respectively arranged at two vertices of the diagonal line of the linkage plate, and the connecting rod is provided with an avoidance groove, which is used to avoid the linkage plate.

6. The outer winding device of the winding machine according to claim 5, characterized in that: The wire fixing part also includes a wire wheel, which is arranged at another top corner of the linkage plate. The wire wheel has a wire threading groove along the circumferential direction. When the copper wire is located in the wire fixing part, the copper wire is adapted to be embedded in the wire threading groove.

7. The outer winding device of the winding machine according to claim 6, characterized in that: The linkage plates are provided with two pieces, and the ends of the connecting rod and the driving rod are clamped between the two linkage plates. A mounting plate is also provided on the side of the wire wheel away from the linkage plate. A wheel axle is fixedly connected to the center of the wire wheel. A connecting plate is provided between the two linkage plates. The wheel axle is threadedly connected to the connecting plate. A nut is threadedly connected to one end of the wheel axle away from the connecting plate, and the nut presses the mounting plate against the side wall of the wire wheel.

8. The outer winding device of the winding machine according to claim 3, characterized in that: The clamp is driven to rotate by a frameless motor, the clamp is connected to the frameless motor, the driving shaft of the wire lifting part passes through the inner ring space of the frameless motor, and the outer diameter of the wire lifting part is smaller than the inner diameter of the frameless motor.

9. The outer winding device of the winding machine according to claim 3, characterized in that: A limiting ring is also provided on the inner periphery of the wire lifting portion. When the limiting ring slides to abut against the bottom wall of the stator outer ring, a gap is left between the top wall of the wire lifting portion and the portion clamped by the clamp on the stator outer periphery.

10. The outer winding device of the winding machine according to claim 9, characterized in that: The driving member has a plurality of different preset heights for lifting the wire lifting portion, and the plurality of preset heights are set corresponding to the number of notches of different heights of the stator.

11. The outer winding device of the winding machine according to claim 4, characterized in that: When the elongation of the driving rod reaches the maximum, the linkage plate is perpendicular to the connecting rod; when the elongation of the driving rod reaches the minimum, the linkage plate is parallel to the connecting plate.

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