External winding device of winding machine
The combined design of the clamp, wire strip assembly and wire lifting part solves the problem of looseness and wear of the copper wire during the stator outer winding process, achieves a stable fit and uniform lifting of the copper wire, and improves the tightness and efficiency of the winding.
Patent Information
- Application Number
- CN202422501641.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-15
AI Technical Summary
When the traditional external winding device pulls out the copper wire and then brings it into the outer ring, the copper wire tends to become loose, causing multiple copper wires to overlap or tangle in the vertical direction, which can easily cause a stator short circuit. In addition, the clamp can easily wear the coating on the outer periphery of the copper wire during the pulling process.
The combined design of the clamp, wire assembly, wire lifting part and driving part is adopted. The clamp clamps the stator outer ring, the wire assembly moves and cooperates with the wire fixing part. The straightened state of the copper wire and the limitation of the stator core gap are used to ensure that the copper wire fits the stator outer ring firmly. The copper wire is evenly lifted by the lifting part to avoid wear.
The tightness of the stator outer winding is improved, the loosening and overlapping of the copper wire on the stator outer ring are avoided, the wear of the copper wire coating is reduced, and the stability and efficiency of the winding are improved.
Smart Images
Figure CN223414754U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of stator processing, in particular to an outer winding device of a winding machine. Background Art
[0002] The stator's primary function is to generate a rotating magnetic field, while the rotor's primary function is to be cut by the magnetic lines of force within the rotating magnetic field, generating current. The stator consists of a frame outer ring, a stator core, and a copper wire coil wrapped around the core. Due to the stator's operating principle, adjacent cores cannot be wound around the same copper wire. Therefore, after winding one core, the copper wire must be brought outside the insulated outer ring. From there, it is pulled to the next core to be wound around the same copper wire, and then brought back inside 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 tends to become loose on the outer periphery of the outer ring, which in turn causes multiple copper wires that overlap in the vertical direction to abut or entangle with each other, making the stator prone to short circuits. 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. Utility Model Content
[0004] The utility model provides an outer winding device of a winding machine, and provides a mode in which the winding and the stator clamp cooperate with each other 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 utility model provides an external winding device of a winding machine adopts the following technical solutions:
[0006] An external winding device of a winding machine, comprising
[0007] A fixture for clamping the stator outer ring, wherein the fixture is arranged to rotate on its own;
[0008] The wire assembly comprises a wire fixing portion and a moving assembly, wherein the wire fixing portion is provided with an entrance for the copper wire to pass through, and the wire fixing portion is arranged on the moving assembly;
[0009] The wire lifting part and the driving part are provided below the stator, and the driving part drives the wire lifting part to approach or move away from the stator. 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] During stator winding, one end of the copper wire is secured by the winding machine, while the other end is wound around the winding machine's take-up wheel. When tension is applied to the wire, the take-up wheel rotates to unwind the wire. As the winding machine's winding assembly pulls the wire, both ends of the wire are restrained. Therefore, the portion of the wire between the fixed end and the winding assembly, and from the winding assembly to the outlet, remains straightened.
[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 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. Then the moving assembly drives the wire assembly to the outside of 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, and after the copper wire is brought out of the stator, the copper wire 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 pay out the wire. At this time, the copper wire between the gap and the wire fixing part is stuck to the stator outer ring due to the obstruction of the rotating stator outer ring.
[0013] When the copper wire reaches the next stator core to be wound, the moving assembly assists the wire-fixing unit in moving into the stator and releasing the copper wire, allowing it to be reinserted into the stator. The moving assembly then causes the wire-fixing unit to retract. After the wire-fixing unit retracts, the wire-lifting unit moves closer to the copper wire until it contacts the outer circumference of the stator outer ring, pushing it upward until it is flush with the top of the notch. Because both ends of the copper wire are taut, the wire remains in contact with the outer circumference of the stator as the wire-lifting unit 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 through the rotating member, the moving module is used to drive the wire fixing part to move on the X-axis and Y-axis, and 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.
[0015] When the copper wire needs to be removed from the stator, the moving module drives the wire holding unit to move along the X and Y axes, effectively shifting the unit on one surface to allow it to approach the stator until the copper wire enters the unit through the entrance. Once the copper wire is inside, the rotating element rotates the unit, causing the entrance to pull the copper wire out of the stator, thereby pulling the wire out of the stator. This straightened state of the copper wire allows it to be pushed out of the stator, preventing damage to the stator copper wire's outer coating, which can occur with conventional clamps.
[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 out-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 be sleeved on the outer periphery of the stator. When the wire lifting portion is sleeved on the outer periphery of the stator, the top wall of the wire lifting portion abuts against the copper wire on the outer periphery of the stator outer ring.
[0018] Since the outer periphery of the stator is in a circular shape, the wire lifting part is set to be in a circular shape so that the distance from the top of the wire lifting part to the bottom of the stator is equal, thereby making the wire lifting force of the wire lifting part on the outer periphery of the stator equal and the lifting height balanced.
[0019] Preferably, 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.
[0020] The cylinder activates, causing the drive rod to extend and retract, pushing the linkage plate, causing it to change position. One end of the linkage plate is restricted by the movement of the connecting rod. As the linkage plate pushes away the end of the connecting rod, it rotates. Therefore, the linkage plate's movement is essentially self-rotation, meaning the wire-fixing unit itself rotates, driving the copper wire within. Although there's a significant distance between the wire-fixing unit and the cylinder, the actual rotation point of the unit is at the end of the drive rod, minimizing the length of the copper wire hooked out and facilitating subsequent rethreading 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 vertex corners 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.
[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 top corners is conducive 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 further 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 circumference. 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, 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 rotates, the position and angle of the wire threading groove relative to the copper wire change. 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 further provided on the side of the spool away from the linkage plate, a wheel axle is fixedly connected to the center of the spool, 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 the end of the wheel axle away from the connecting plate, and the nut presses the mounting plate against the side wall of the spool.
[0026] The mounting plate acts as a non-slip member for the nut, preventing the reel from separating from the linkage plate. It also acts as a spacer between the reel and the nut, protecting the reel. If the copper wire should fall out of the threading slot, the mounting plate prevents it from separating from the wire holder, providing a final layer of protection for the wire hook.
[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. 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 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 that the copper wire is pushed to the bottom of the notch. The depth characteristics of the notch are used to the greatest extent 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 has the following beneficial technical effects:
[0034] 1. 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 take-up wheel. When the copper wire is subjected to tension, the take-up wheel rotates to unwind the wire. When the winding machine's winding assembly pulls the copper wire to wind it, both ends of the copper wire are restricted. Therefore, the section between the fixed end of the copper wire and the winding assembly, and the section between the winding assembly and 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 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. Then the moving assembly drives the wire assembly to the outside of 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, and after the copper wire is brought out of the stator, the copper wire 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 pay out the wire. At this time, the copper wire between the gap and the wire fixing part is stuck to the stator outer ring due to the obstruction of the rotating stator outer ring.
[0037] 2. When the copper wire reaches the next stator core to be wound, the moving assembly assists the wire-fixing unit in moving into the stator and releasing the copper wire, allowing it to re-enter the stator. The moving assembly then drives the wire-fixing unit back into place. After the wire-fixing unit has retracted, the wire-lifting unit moves closer to the copper wire until it contacts the outer circumference of the stator outer ring, pushing the copper wire upward until it is flush with the top of the notch. Since both ends of the copper wire are taut, the wire remains in contact with the outer circumference of the stator as the wire-lifting unit 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.
[0039] Figure 2 It is a schematic diagram of the overall structure of an outer winding device of a winding machine of the utility model 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 accompanying reference numerals: 1. Clamp; 2. Stator; 21. Outer ring; 22. Iron core; 23. Notch; 3. Wire fixing part; 31. Linkage plate; 32. Wire pulley; 33. Threading groove; 34. Mounting plate; 35. Nut; 4. Base; 5. Rotating part; 51. Cylinder; 52. Drive 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 utility model is described in further detail.
[0043] The embodiment of the utility model discloses an external winding device of a winding machine.
[0044] Reference Figure 1 as well as Figure 2 , an external winding device of a winding machine, comprising
[0045] The fixture 1 holds the stator outer ring 21 and is arranged to rotate;
[0046] The wire assembly includes a fixed wire portion 3 and a movable assembly. The fixed wire portion 3 has an entrance for the copper wire to pass through, and the fixed wire portion 3 is arranged on the movable assembly.
[0047] The wire lifting part 7 and the driving part, the wire lifting part 7 is arranged below the stator 2, the driving part 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] During stator 2 winding, one end of the copper wire is secured by the winding machine, while the other end is wound around the winding machine's take-up wheel. When tension is applied to the copper wire, the take-up wheel rotates to unwind the wire. As the winding machine's winding assembly pulls the copper wire, both ends of the wire are restrained, resulting in a straightened section between the fixed end and the winding assembly, and between the winding assembly and the outlet.
[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. The plurality of notches are provided one by one corresponding to the stator core 22.
[0050] The fixture 1 clamps the outer ring 21 of the stator 2. After the winding of a stator core 22 is completed, the moving assembly 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. Then the moving assembly drives the wire assembly to move to the outside of 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, and after the copper wire is brought out of the stator 2, the copper wire 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 pay out the wire. At this time, the copper wire between the notch 23 and the wire fixing part 3 is stuck to the stator outer ring 21 due to the obstruction of the rotating stator outer ring 21.
[0052] When the copper wire reaches the next stator core 22 to be wound, the moving assembly assists the wire fixing portion 3 to move into the stator 2 and release the copper wire, allowing the copper wire to be inserted into the stator 2 again. The moving assembly then drives the wire fixing portion 3 to retreat. After the wire fixing portion 3 retreats, the wire lifting portion 7 moves closer to the copper wire until it contacts the copper wire on the outer periphery of the stator outer ring 21, thereby pushing the copper wire upward until it is flush with the top of the notch 23. Since both ends of the copper wire are in a taut state, the copper wire can always be in contact with the outer periphery of the stator 2 when the wire lifting portion 7 moves upward.
[0053] The wire fixing part 3, the wire lifting part 7 and the clamp 1 move in coordination, which improves the coordination of the overall operation, reduces the interval between some components and the waiting time, and makes 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 holding portion 3 to move along the X and Y axes, that is, it drives the wire holding portion 3 to undergo the required displacement on one surface, so that the wire holding portion 3 can approach the stator 2 until the copper wire passes through the entrance into the wire holding portion 3. After the copper wire passes into the wire holding portion 3, the rotating member 5 drives the wire holding portion 3 to rotate, so that the entrance of the wire holding portion 3 drives the copper wire to rotate out of the stator 2, thereby bringing the copper wire out of the stator 2. The copper wire is pushed out of the stator 2 in its straightened state, thus preventing the conventional clamp 1 from damaging the outer 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 and resets, 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 copper wire out-bringing action.
[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 periphery 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, thereby making the wire lifting force of the wire lifting portion 7 on the outer periphery of the stator 2 equal and the lifting height 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 activated, causing the drive rod 52 to telescope, thereby pushing the linkage plate 31, causing the linkage plate 31 to change its position. One end of the linkage plate 31 is restricted by the movement of the connecting rod 53. As the linkage plate 31 pushes the end of the connecting rod 53 away, it rotates itself. Therefore, for the linkage plate 31, the essence of its movement 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 drive rod 52, which reduces the length of the copper wire hooked out, making it easier to thread it into the stator 2 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 to a maximum length, 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, and the ends of the connecting rod 53 and the driving rod 52 are respectively arranged at the two top corners of the diagonal line of the linkage plate 31. The connecting rod 53 has 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 spacing inside the rectangular plate. Placing the ends of the connecting rod 53 and the driving rod 52 at the two top 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 wire 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 wire threading groove 33 changes position and angle relative to the copper wire. The annular wire 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, there are two linkage plates 31, and the ends of the connecting rod 53 and the driving rod 52 are clamped between the two linkage plates 31. A mounting plate 34 is also provided on the side of the spool 32 away from the linkage plate 31. The center of the spool 32 is fixedly connected to a wheel axle, and 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 spool 32.
[0068] The mounting plate 34 acts as a non-slip member for the nut 35, preventing the reel 32 from separating from the linkage plate 31. It also acts as a spacer between the reel 32 and the nut 35, protecting the reel 32. Furthermore, if the copper wire should fall out of the threading slot 33, the mounting plate 34 can still prevent the copper wire from separating from the wire-fixing portion 3, thus providing a final layer of protection for the wire hooking process.
[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. 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 clamp 1 rotation 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 this embodiment, the driving member has multiple different preset heights for lifting the wire lifting portion 7, and the multiple preset heights are set corresponding to the number of gaps 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 that the copper wire is pushed to the bottom of the notch 23, and the depth characteristics of the notch 23 are used to the greatest extent 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 scope of protection 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 scope of protection of the present invention.
Claims
1. An external winding device of a winding machine, characterized in that: include A fixture for clamping the stator outer ring, wherein the fixture is arranged to rotate on its own; The wire assembly comprises a wire fixing portion and a moving assembly, wherein the wire fixing portion is provided with an entrance for the copper wire to pass through, and the wire fixing portion is arranged on the moving assembly; The wire lifting part and the driving part are provided below the stator, and the driving part drives the wire lifting part to approach or move away from the stator. 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 through 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 be sleeved 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 2, 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 vertex corners 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 circumference. 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 end of the connecting rod and the end of the driving rod are clamped between the two linkage plates. A mounting plate is also provided on the side of the spool away from the linkage plate. The center of the spool is fixedly connected with a wheel axle, and a connecting plate is provided between the two linkage plates. The wheel axle is threadedly connected to the connecting plate, and a nut is threadedly connected to the end of the wheel axle away from the connecting plate, and the nut presses the mounting plate against the side wall of the spool.
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 further 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 of the clamp clamped 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.