A motor card wire insulation layer wrapping device

Abstract

The application relates to the technical field of hairpin wire processing equipment, in particular to a motor hairpin wire insulation layer wrapping device which comprises a first driving assembly, a second driving assembly and a wrapping mechanism, the output ends of the first driving assembly and the second driving assembly are respectively provided with clamping racks, the two clamping racks are arranged on the side opposite to the first driving assembly and the second driving assembly, the two clamping racks are oppositely arranged, a clamping driving element and a fixed clamping arm are fixedly arranged on one side of the clamping rack, the fixed clamping arm is at least partially arranged outside the clamping rack, one end of the fixed clamping arm is fixedly connected with the clamping rack, a movable clamping arm is hingedly connected to the other side of the clamping rack, the movable clamping arm comprises a clamping part and a transmission part which is integrally connected with the clamping part, the clamping part is oppositely arranged with the fixed clamping arm, the output end of the clamping driving element is in transmission connection with the transmission part, and the wrapping mechanism is located between the first driving assembly and the second driving assembly. The application has the effects of improving the wrapping efficiency of the motor hairpin wire and improving the automation degree and the universality of the wrapping device.

Description

Technical Field

[0001] This application relates to the technical field of motor hairpin wire processing equipment, and in particular to a device for wrapping the insulation layer of motor hairpin wire. Background Technology

[0002] The hairpin wire is a core component of flat wire motors. To ensure electrical isolation between turns, strands, and ground, prevent direct contact between conductors, avoid short circuits between turns or layers that could lead to motor failure, and reduce scratches on the hairpin wire itself to extend its service life, an insulation layer is usually wrapped around the surface of the hairpin wire to ensure insulation performance and thus ensure the safety of motor operation. Traditional insulation wrapping mainly uses manual winding, which has low production efficiency, poor wrapping quality consistency, and is prone to problems such as tape wrinkles, curling edges, missing wrapping, and uneven insulation layer thickness. It is not suitable for large-scale stable production. In order to reduce the labor intensity of manual operation, the existing wrapping method also uses semi-automated equipment to assist in wrapping. However, it can only fix a single winding angle and still requires manual intervention in feeding the tape and controlling the start and end points. The degree of automation is low, and it cannot balance processing efficiency, wrapping quality consistency, and compatibility with multiple product specifications. Therefore, further improvements are needed. Summary of the Invention

[0003] In order to improve the winding efficiency of motor hairpin wire and enhance the automation and versatility of the winding device, this application provides a motor hairpin wire insulation layer winding device.

[0004] This application provides a device for wrapping the insulation layer of a motor hairpin wire, which adopts the following technical solution: A device for wrapping the insulation layer of a motor hairpin wire includes a first drive assembly, a second drive assembly, and a wrapping mechanism. Clamping frames are respectively installed at the output ends of the first and second drive assemblies. The two clamping frames are located on opposite sides of the first and second drive assemblies, and are arranged opposite each other. A clamping drive member and a fixed clamping arm are fixedly installed on one side of each clamping frame. At least a portion of the fixed clamping arm extends out of the clamping frame, and one end of the fixed clamping arm is fixedly connected to the clamping frame. A movable clamping arm is hinged to the other side of the clamping frame. The movable clamping arm includes a clamping part and a transmission part integrally connected to the clamping part. The clamping part is arranged opposite to the fixed clamping arm. The output end of the clamping drive member is drively connected to the transmission part. The wrapping mechanism is located between the first and second drive assemblies.

[0005] By adopting the above technical solution, the transmission part of the moving clamping arm is driven by the clamping drive component, so that the clamping part moves relative to the fixed clamping arm, realizing the automatic clamping and releasing of the hair clip wire. This facilitates the positioning and clamping of both ends of the hair clip wire, improves the stability of the hair clip wire during the wrapping process, reduces the intensity of manual operation, and improves the accuracy and efficiency of the wrapping operation. The two clamping frames are respectively set at the output ends of the first drive component and the second drive component, which improves the adaptability to hair clip wires of different lengths and specifications, realizes the automatic feeding of hair clip wires to the wrapping operation area, and improves the wrapping quality and automation level.

[0006] Optionally, a first clamping block is detachably provided at the end of the movable clamping arm away from the clamping frame. The first clamping block is located on the side of the movable clamping arm close to the fixed clamping arm. A second clamping block is detachably provided on the fixed clamping arm corresponding to the first clamping block.

[0007] By adopting the above technical solution, the first clamping block and the second clamping block can easily clamp hairpins with different cross-sectional shapes. The first clamping block and the second clamping block can be detachably installed on the fixed clamping arm, which improves the device's adaptability to hairpins of different shapes, enhances the device's versatility, improves the clamping stability of the hairpins, and facilitates the individual replacement of the clamping blocks after wear, thus reducing the device's maintenance costs.

[0008] Optionally, the second clamping block is provided with a stop block, the stop block is cylindrical, the stop block extends along the clamping direction, and the stop block is offset from the first clamping block along the extension direction of the fixed clamping arm.

[0009] By adopting the above technical solution, and by setting a cylindrical abutment, when the hairpin is curved, the first clamping block and the second clamping block clamp the bend of the hairpin. The abutment can abut against the inside of the bend of the hairpin, improving clamping stability. Furthermore, the abutment and the first clamping block are offset along the extension direction of the fixed clamping arm to prevent mechanical interference between the abutment and the first clamping block as much as possible, thereby improving the reliability of the device.

[0010] Optionally, the wrapping mechanism includes a wrapping machine base, on which a wrapping machine frame is fixedly mounted. The wrapping machine frame is arranged in a ring shape, and an annular guide groove is provided on the periphery of the wrapping machine frame. A wrapping ring is movably connected to the wrapping machine frame, and the wrapping ring is slidably connected to the annular guide groove. An insulating tape roll is rotatably connected to the side wall of the wrapping ring.

[0011] By adopting the above technical solution, the wrapping ring moves in a circular motion along the wrapping machine frame under the guidance of the annular guide groove. The insulating tape roll rotates with the wrapping ring and spirally winds the insulating tape onto the hairpin wire, realizing automatic wrapping of the insulating tape, improving the uniformity and efficiency of the wrapping operation, reducing the safety risks of manual operation, and the annular guide groove limits and guides the movement of the wrapping ring, improving the stability of the wrapping ring during rotation and improving the wrapping accuracy of the insulating tape.

[0012] Optionally, a toothed ring is movably disposed within the annular guide groove, the toothed ring is slidably connected to the annular guide groove, the wrapping ring is fixedly connected to the side wall of the toothed ring, the wrapping frame is provided with a clearance groove corresponding to the wrapping ring, and a wrapping drive component is disposed within the wrapping machine base, the wrapping drive component being drivenly connected to the toothed ring.

[0013] By adopting the above technical solution, the wrapping drive unit drives the wrapping ring to rotate through the toothed ring, which improves the stability of the wrapping ring rotation process, reduces the probability of jamming or deviation when the wrapping ring rotates, and provides movement space for the wrapping ring and the insulating tape roll, ensuring that the wrapping ring rotates synchronously with the toothed ring as much as possible, thereby improving the reliability of the device operation.

[0014] Optionally, the wrapping frame, wrapping ring, and toothed ring are concentrically arranged open circular rings.

[0015] By adopting the above technical solution, the wrapping frame, wrapping ring, and toothed ring are concentrically arranged. When the openings of the wrapping ring and toothed ring are rotated to correspond with the opening of the wrapping frame, the carding wire can easily enter the center position of the wrapping frame, wrapping ring, and toothed ring directly from the side opening. There is no need for the end of the carding wire to be axially threaded, which facilitates the feeding and wrapping operation of the carding wire in conjunction with the clamping frame, simplifies the loading and unloading operation, and improves production efficiency.

[0016] Optionally, a mounting bracket is fixedly installed on the wrapping machine base. The side of the wrapping machine frame away from the clearance groove is fixed to the mounting bracket. A first transmission gear and a second transmission gear are rotatably connected to the side of the mounting bracket where the wrapping machine frame is located. The first transmission gear and the second transmission gear mesh with a gear ring, respectively. A through groove is opened on the top wall of the wrapping machine base. The through groove is located below the gear ring. The first transmission gear and the second transmission gear extend into the wrapping machine base through the through groove in at least part. A third transmission gear is rotatably installed inside the wrapping machine base. The third transmission gear meshes with the first transmission gear and the second transmission gear. The output end of the wrapping drive component is coaxially fixed with the third transmission gear.

[0017] By adopting the above technical solution, the wrapping drive component drives the third transmission gear to rotate, and the third transmission gear simultaneously drives the first transmission gear and the second transmission gear to rotate synchronously. The first transmission gear and the second transmission gear jointly drive the toothed ring to rotate along the annular guide groove. The two transmission gears mesh with the toothed ring at the same time, which improves the smoothness of the toothed ring rotation. At the same time, it prevents the toothed ring from failing to mesh properly when the opening of the toothed ring rotates to the first transmission gear or the second transmission gear. This improves the continuity of the wrapping drive component and the toothed ring transmission, reduces the probability of jamming and stopping during the rotation of the toothed ring, and improves the stability of the device operation and the continuity of the wrapping operation.

[0018] Optionally, it includes a first transmission device, the first driving assembly including a first vertical driving member and a first horizontal driving member, the first vertical driving member being fixedly disposed at the output end of the first transmission device, the first transmission device being used to drive the first driving assembly to move along a first direction, the first horizontal driving member being fixedly disposed at the output end of the first vertical driving member, the first vertical driving member being used to drive the clamping frame connected to it in transmission to move along a vertical direction, the first horizontal driving member being used to drive the clamping frame connected to it in transmission to move along a second direction, the first direction, the second direction and the vertical direction being mutually perpendicular.

[0019] By adopting the above technical solution, the first transmission device, the first vertical drive component, and the first horizontal drive component cooperate with each other to realize the three-dimensional linear movement capability of the clamping frame in the first direction, the second direction, and the vertical direction. This improves the adaptability to hairpins of different lengths and curvatures, facilitates the wrapping operation requirements of hairpins of different shapes and specifications, and also facilitates the clamping frame to drive the end of the hairpin to complete automated loading, unloading, and wrapping operations, thereby improving the automation level of the device and enhancing its adaptability and positioning accuracy.

[0020] Optionally, a second transmission device is included. The second drive assembly includes a second vertical drive member and a second horizontal drive member. The second vertical drive member is fixedly disposed at the output end of the second transmission device. The second transmission device is used to drive the second drive assembly to move along a first direction. The second horizontal drive member is fixedly disposed at the output end of the second vertical drive member. The second vertical drive member is used to drive the clamping frame connected to it in transmission to move in a vertical direction. The second horizontal drive member is used to drive the clamping frame connected to it in transmission to move in a second direction.

[0021] By adopting the above technical solution, the second transmission device cooperates with the first transmission device to adjust the axial position of the clamped hairpin wire along the wrapping ring. Through the cooperation of the first drive assembly and the second drive assembly, the two clamping frames adjust the three-dimensional position of the two ends of the hairpin wire, which meets the wrapping requirements of hairpin wires of different shapes and specifications, facilitates the movement of the hairpin wire along its wrapping path, further improves the automation level of the device, improves the accuracy of the wrapping operation, improves the uniformity of the insulation layer thickness after wrapping, and improves the wrapping quality.

[0022] Optionally, the output ends of the first horizontal drive member and the second horizontal drive member are respectively provided with rotation drive members, and the clamping frame is fixedly disposed on the output end of the rotation drive member.

[0023] By adopting the above technical solution, the rotating drive component can drive the clamping frame to rotate around its own axis with the hairpin wire it holds, and in conjunction with the revolution of the wrapping ring, improve the wrapping efficiency of the insulating tape.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Two clamping drive components are respectively set at the output ends of the first drive assembly and the second drive assembly, which improves the adaptability to hairpin wires of different lengths and specifications, realizes the automatic feeding of hairpin wires to the wrapping operation area, and improves the wrapping quality and automation level; 2. The wrapping frame, wrapping ring, and toothed ring are concentric open rings, which makes it easy for the carding wire to enter the center of the wrapping frame, wrapping ring, and toothed ring directly from the side opening. There is no need to axially thread the end of the carding wire, which makes it easier to cooperate with the clamping frame to complete the feeding and wrapping operation of the carding wire, simplify the loading and unloading operation, and improve production efficiency. 3. The third transmission gear simultaneously drives the first transmission gear and the second transmission gear to rotate synchronously. The first transmission gear and the second transmission gear together drive the gear ring to rotate along the annular guide groove, improving the smoothness of the gear ring rotation and enhancing the continuity of the winding drive component and the gear ring transmission. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application.

[0026] Figure 2 This is a schematic diagram of the overall structure from another angle in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the wrapping mechanism structure in the embodiments of this application.

[0028] Figure 4 This is a schematic diagram of the wrapping mechanism structure from another angle in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures: 11. First vertical drive component; 12. First horizontal drive component; 13. Second vertical drive component; 14. Second horizontal drive component; 15. Rotation drive component; 21. Clamping frame; 22. Clamping drive component; 23. Fixed clamping arm; 231. Second clamping block; 232. Abutment block; 24. Moving clamping arm; 241. First clamping block; 31. Third transmission device; 32. Rotary seat; 41. Wrapping machine base; 42. Wrapping drive component; 43. Through slot; 44. Mounting frame; 45. First transmission gear; 46. Second transmission gear; 47. Third transmission gear; 51. Wrapping machine frame; 52. Gear ring; 53. Wrapping ring; 54. Insulating tape roll; 61. Drive cylinder; 62. Roller frame; 63. Pressure roller. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. If the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicators will also change accordingly.

[0031] This application discloses a device for wrapping the insulation layer of a motor hairpin wire.

[0032] Reference Figures 1 to 4 A device for wrapping the insulation layer of a motor hairpin wire includes a first transmission device, a second transmission device, a first drive assembly, a second drive assembly, and a wrapping mechanism. The wrapping mechanism is located between the first drive assembly and the second drive assembly. The first transmission device and the second transmission device are arranged parallel to each other along the wrapping conveying direction. The first drive assembly is fixedly mounted at the output end of the first transmission device, and the second drive assembly is fixedly mounted at the output end of the second transmission device. The first transmission device and the second transmission device respectively drive the first drive assembly and the second drive assembly to translate along the wrapping conveying direction. When the first transmission device and the second transmission device respectively drive the first drive assembly and the second drive assembly to move relative to each other... When moving away from or nearing the device, the distance between the clamping components on the first and second drive components can be adjusted to accommodate hairpins of different lengths and specifications. The clamping components clamp and fix both ends of the hairpin. When the first and second transmission devices simultaneously drive the first and second drive components to move along the conveying direction, the hairpin can pass through the wrapping working area at the required speed, realizing the automated wrapping operation of the device. By controlling the moving speed of the first and second drive components, the pitch and overlap of the insulation layer wrapping can also be adjusted to meet the processing requirements of different insulation layer thicknesses and wrapping tightness.

[0033] The first driving assembly includes a first vertical driving member 11 and a first horizontal driving member 12. The second driving assembly includes a second vertical driving member 13 and a second horizontal driving member 14. The first vertical driving member 11 is fixedly mounted at the output end of the first transmission device, and the second vertical driving member 13 is fixedly mounted at the output end of the second transmission device. The first vertical driving member 11 and the second vertical driving member 13 are arranged in parallel. The first horizontal driving member 12 is fixedly mounted at the output end of the first vertical driving member 11, and the second horizontal driving member 14 is fixedly mounted at the output end of the second vertical driving member 13. The first vertical driving member 11 and the second vertical driving member 13 cooperate with each other to adjust the height difference between the two ends of the hairpin wire, thereby adjusting the angle between the hairpin wire and the plane where the wrapping ring 53 is located. This facilitates the adjustment of the hairpin wire winding angle to meet different wrapping requirements of the hairpin wire. Furthermore, when the first vertical driving member 11 and the second vertical driving member 13 synchronously drive the two ends of the hairpin wire to rise and fall, they can also drive the automated loading and unloading of the hairpin wire, improving the automation level of the device and the uniformity of the wrapping.

[0034] The first horizontal drive member 12 and the second horizontal drive member 14 are arranged in parallel. The extension directions of the first horizontal drive member 12 and the second horizontal drive member 14 are perpendicular to the extension directions of the first transmission device and the second transmission device. The first transmission device, the first vertical drive member 11 and the first horizontal drive member 12 cooperate with each other, and the second transmission device, the second vertical drive member 13 and the second horizontal drive member 14 cooperate with each other to realize the three-dimensional linear movement capability of the clamping frame 21 in three mutually perpendicular directions. The first transmission device and the second transmission device cooperate with each other to realize the axial position adjustment of the clamped hairpin wire along the wrapping ring 53. Through the cooperation of the first drive assembly and the second drive assembly, the two clamping frames 21 realize the three-dimensional position adjustment of the two ends of the hairpin wire, which meets the wrapping requirements of hairpin wires of different shapes and specifications, facilitates the movement of the hairpin wire along its wrapping path, further improves the automation level of the device, improves the accuracy of the wrapping operation, improves the uniformity of the insulation layer thickness after wrapping, and facilitates the automatic adjustment of the hairpin wire angle according to the extension shape of the hairpin wire during the wrapping process, thereby improving the wrapping quality.

[0035] Rotary drive units 15 are respectively installed at the output ends of the first horizontal drive unit 12 and the second horizontal drive unit 14. The two rotary drive units 15 are located on the opposite side of the first horizontal drive unit 12 and the second horizontal drive unit 14. The two rotary drive units 15 are arranged opposite each other. A clamping frame 21 is installed at the output end of the rotary drive unit 15. The rotary drive unit 15 can drive the clamping frame 21 to rotate the hairpin wire it holds around its own axis. In conjunction with the revolution of the wrapping ring 53, the wrapping efficiency of the insulating tape is improved.

[0036] A clamping drive 22 and a fixed clamping arm 23 are fixedly installed on one side of the clamping frame 21. The fixed clamping arm 23 extends at least partially out of the clamping frame 21. One end of the fixed clamping arm 23 is fixedly connected to the clamping frame 21. A movable clamping arm 24 is hinged to the other side of the clamping frame 21. The movable clamping arm 24 includes a clamping part and a transmission part integrally connected to the clamping part. The clamping part is arranged opposite to the fixed clamping arm 23. The output end of the clamping drive 22 is connected to the transmission part. The clamping drive 22 drives the transmission part of the movable clamping arm 24, so that the clamping part moves relative to the fixed clamping arm 23, realizing the automatic clamping and loosening of the hair clip. This facilitates the positioning and clamping of both ends of the hair clip, improves the stability of the hair clip during the wrapping process, reduces the intensity of manual operation, improves the accuracy and efficiency of the wrapping operation, and improves the wrapping quality and automation level.

[0037] A first clamping block 241 is detachably provided at the end of the movable clamping arm 24 away from the clamping frame 21. The first clamping block 241 is located on the side of the movable clamping arm 24 close to the fixed clamping arm 23. A second clamping block 231 is detachably provided on the fixed clamping arm 23 corresponding to the first clamping block 241. The first clamping block 241 and the second clamping block 231 facilitate the clamping of hairpins with different cross-sectional shapes. The first clamping block 241 and the second clamping block 231 are detachably installed on the fixed clamping arm 23, which improves the adaptability of the device to hairpins of different shapes, improves the versatility of the device, improves the clamping stability of the hairpins, and facilitates the individual replacement of the clamping blocks after wear, thereby reducing the maintenance cost of the device.

[0038] In one embodiment, the second clamping block 231 is provided with a stop block 232, which is cylindrical and extends along the clamping direction. The stop block 232 and the first clamping block 241 are offset along the extension direction of the fixed clamping arm 23. By providing the cylindrical stop block 232, when the hair clip has a curved structure, the first clamping block 241 and the second clamping block 231 clamp the bend of the hair clip. The stop block 232 can abut against the inner side of the bend of the hair clip, improving the clamping stability. Furthermore, the stop block 232 and the first clamping block 241 are offset along the extension direction of the fixed clamping arm 23, which minimizes mechanical interference between the stop block 232 and the first clamping block 241 and improves the reliability of the device.

[0039] A device for wrapping the insulation layer of a motor hairpin wire also includes a third transmission device 31. One end of the third transmission device 31 is located close to the first transmission device or the second transmission device. The third transmission device 31 is arranged parallel to the first horizontal drive member 12 and the second horizontal drive member 14. The output end of the third transmission device 31 is provided with a wrapping mechanism, which facilitates the adjustment of the position of the wrapping mechanism according to the wrapping requirements, improves the adaptability of the device, and meets the usage requirements of different processing scenarios.

[0040] In one embodiment, a rotating base 32 is also fixedly provided at the output end of the third transmission device 31. The wrapping mechanism is fixedly installed on the rotating base 32. The rotating base 32 can drive the wrapping mechanism to rotate as a whole, thereby adjusting the wrapping angle of the wrapping mechanism. This facilitates adjusting the winding direction and angle of the insulating tape according to the wrapping requirements, thereby improving the wrapping quality.

[0041] The wrapping mechanism includes a wrapping machine base 41, which is fixedly mounted on a rotating base 32. A wrapping machine frame 51 is fixedly mounted on the wrapping machine base 41. The wrapping machine frame 51 is arranged in a ring shape, and an annular guide groove is opened on the periphery of the wrapping machine frame 51. A wrapping ring 53 is movably connected to the wrapping machine frame 51 and is slidably connected to the annular guide groove. The wrapping ring 53 moves in a circle along the wrapping machine frame 51 under the guidance of the annular guide groove. An insulating tape roll 54 is rotatably connected to the side wall of the wrapping ring 53. The insulating tape roll 54 revolves around the hairpin wire with the wrapping ring 53 and rotates around its own axis to release the insulating tape, so that the insulating tape is spirally wound around the hairpin wire, realizing the automatic wrapping operation of the insulating tape, improving the uniformity and efficiency of the wrapping operation, reducing the safety risks of manual operation, and limiting and guiding the movement of the wrapping ring 53, improving the stability of the wrapping ring 53 during rotation and improving the wrapping accuracy of the insulating tape.

[0042] In one embodiment, two insulating tape rolls 54 are provided, symmetrically arranged on the outer side of the wrapping ring 53. When the two insulating tape rolls 54 are equipped with the same type of insulating tape, it is convenient to switch to the other roll directly after the insulating tape on one side is used up, reducing downtime of the device, reducing the frequency of insulating tape feeding, improving the continuity of the wrapping operation, and increasing the production efficiency of the device. When the two insulating tape rolls 54 are equipped with insulating tapes of different materials or thicknesses, different insulating tapes can be used according to processing requirements, reducing downtime for material changes and improving processing efficiency. Furthermore, the symmetrical arrangement of the insulating tape rolls 54 can balance the centrifugal force during the rotation of the wrapping ring 53, further improving the stability of the rotation of the wrapping ring 53, reducing vibration during rotation, and improving the wrapping quality.

[0043] A toothed ring 52 is movably installed inside the annular guide groove, and the toothed ring 52 is slidably connected to the annular guide groove. The wrapping ring 53 is fixedly connected to the side wall of the toothed ring 52. The wrapping frame 51 has a clearance groove corresponding to the wrapping ring 53. A wrapping drive component 42 is installed inside the wrapping base 41. The wrapping drive component 42 is connected to the toothed ring 52 for transmission. The wrapping drive component 42 drives the wrapping ring 53 to rotate through the toothed ring 52, which improves the stability of the wrapping ring 53 during rotation and reduces the probability of jamming or deviation when the wrapping ring 53 rotates. In addition, the clearance groove provides movement space for the wrapping ring 53 and the insulating tape roll 54, ensuring that the wrapping ring 53 rotates synchronously with the toothed ring 52 as much as possible, thereby improving the reliability of the device operation.

[0044] In one embodiment, the wrapping frame 51, the wrapping ring 53, and the toothed ring 52 are concentrically arranged open rings. When the openings of the wrapping ring 53 and the toothed ring 52 are rotated to correspond to the opening of the wrapping frame 51, the carding wire can directly enter the center position of the wrapping frame 51, the wrapping ring 53, and the toothed ring 52 from the side opening. There is no need to axially thread the end of the carding wire, which facilitates the feeding and wrapping operation of the carding wire in conjunction with the clamping frame 21, simplifies the loading and unloading operation, and improves production efficiency.

[0045] A mounting bracket 44 is fixedly installed on the wrapping machine base 41. The side of the wrapping machine frame 51 away from the clearance groove is fixed to the mounting bracket 44. The side of the mounting bracket 44 where the wrapping machine frame 51 is located is rotatably connected to a first transmission gear 45 and a second transmission gear 46. The first transmission gear 45 and the second transmission gear 46 respectively mesh with the gear ring 52. A through groove 43 is opened on the top wall of the wrapping machine base 41. The through groove 43 is located below the gear ring 52. The first transmission gear 45 and the second transmission gear 46 extend into the wrapping machine base 41 through the through groove 43. A third transmission gear 47 is rotatably installed inside the wrapping machine base 41. The third transmission gear 47 meshes with the first transmission gear 45 and the second transmission gear 46. The output end of the wrapping drive component 42 is coaxially fixed with the third transmission gear 47. The wrapping drive 42 drives the third transmission gear 47 to rotate, and the third transmission gear 47 simultaneously drives the first transmission gear 45 and the second transmission gear 46 to rotate synchronously. The first transmission gear 45 and the second transmission gear 46 together drive the toothed ring 52 to rotate along the annular guide groove. The two transmission gears mesh with the toothed ring 52 at the same time, which improves the smoothness of the rotation of the toothed ring 52. At the same time, it prevents the toothed ring 52 from failing to mesh properly when the opening of the toothed ring 52 rotates to the position of the first transmission gear 45 or the second transmission gear 46. This improves the continuity of the transmission between the wrapping drive 42 and the toothed ring 52, reduces the probability of jamming and stopping during the rotation of the toothed ring 52, and improves the stability of the device operation and the continuity of the wrapping operation.

[0046] Two drive cylinders 61 are fixedly installed on the side of the wrapping machine frame 51 away from the wrapping ring 53. The two drive cylinders 61 are located on both sides of the opening of the wrapping machine frame 51 and are symmetrically arranged opposite each other. A roller frame 62 is fixedly installed at the output end of the drive cylinder 61. A pressure roller 63 is rotatably connected to the roller frame 62. The pressure roller 63 is located inside the ring of the wrapping machine frame 51. The drive cylinders 61 drive the pressure rollers 63 to move closer or further away from each other. After the hairpin wire is wrapped by the insulating tape roll 54, it passes between the two pressure rollers 63. The drive cylinders 61 drive the pressure rollers 63 to move closer to each other until they abut against the surface of the hairpin wire, so that the pressure rollers 63 press the insulating tape that has just been wrapped on the surface of the hairpin wire tightly and firmly, improve the flatness and tightness of the wrapped insulation layer, reduce the probability of the insulation tape being loose and curled up, reduce the possibility of wrinkles and gaps in the insulation layer, and improve the forming quality of the wrapped insulation layer.

[0047] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for wrapping the insulation layer of a motor hairpin wire, characterized in that: The device includes a first drive assembly, a second drive assembly, and a wrapping mechanism. The output ends of the first drive assembly and the second drive assembly are respectively equipped with clamping frames (21). The two clamping frames (21) are located on opposite sides of the first drive assembly and the second drive assembly, and are arranged opposite to each other. A clamping drive member (22) and a fixed clamping arm (23) are fixedly provided on one side of the clamping frame (21). The fixed clamping arm (23) extends at least partially out of the clamping frame (21). One end of the fixed clamping arm (23) is fixedly connected to the clamping frame (21). A movable clamping arm (24) is hinged to the other side of the clamping frame (21). The movable clamping arm (24) includes a clamping part and a transmission part integrally connected to the clamping part. The clamping part is arranged opposite to the fixed clamping arm (23). The output end of the clamping drive member (22) is connected to the transmission part. The wrapping mechanism is located between the first drive assembly and the second drive assembly.

2. The device for wrapping the insulation layer of a motor hairpin wire according to claim 1, characterized in that: The movable clamping arm (24) is detachably provided with a first clamping block (241) at one end away from the clamping frame (21). The first clamping block (241) is located on the side of the movable clamping arm (24) close to the fixed clamping arm (23). The fixed clamping arm (23) is detachably provided with a second clamping block (231) corresponding to the first clamping block (241).

3. The device for wrapping the insulation layer of a motor hairpin wire according to claim 2, characterized in that: The second clamping block (231) is provided with a stop block (232), which is cylindrical and extends along the clamping direction. The stop block (232) and the first clamping block (241) are offset from each other along the extension direction of the fixed clamping arm (23).

4. The device for wrapping the insulation layer of a motor hairpin wire according to claim 1, characterized in that: The wrapping mechanism includes a wrapping machine base (41), on which a wrapping machine frame (51) is fixedly installed. The wrapping machine frame (51) is arranged in a ring shape. An annular guide groove is opened on the periphery of the wrapping machine frame (51). A wrapping ring (53) is movably connected to the wrapping machine frame (51). The wrapping ring (53) is slidably connected to the annular guide groove. An insulating tape roll (54) is rotatably connected to the side wall of the wrapping ring (53).

5. The device for wrapping the insulation layer of a motor hairpin wire according to claim 4, characterized in that: A toothed ring (52) is movably disposed in the annular guide groove. The toothed ring (52) is slidably connected to the annular guide groove. The wrapping ring (53) is fixedly connected to the side wall of the toothed ring (52). The wrapping machine frame (51) has a clearance groove corresponding to the wrapping ring (53). A wrapping drive component (42) is disposed in the wrapping machine base (41). The wrapping drive component (42) is connected to the toothed ring (52) in a transmission manner.

6. The device for wrapping the insulation layer of a motor hairpin wire according to claim 4, characterized in that: The wrapping frame (51), wrapping ring (53) and toothed ring (52) are concentrically arranged open rings.

7. The device for wrapping the insulation layer of a motor hairpin wire according to claim 5, characterized in that: A mounting bracket (44) is fixedly installed on the wrapping machine base (41). The side of the wrapping machine frame (51) away from the clearance groove is fixed to the mounting bracket (44). A first transmission gear (45) and a second transmission gear (46) are rotatably connected to the side of the mounting bracket (44) where the wrapping machine frame (51) is located. The first transmission gear (45) and the second transmission gear (46) respectively mesh with the gear ring (52). A through groove (43) is opened on the top wall of the wrapping machine base (41). The through groove (43) is located below the gear ring (52). The first transmission gear (45) and the second transmission gear (46) extend into the wrapping machine base (41) at least partially through the through groove (43). A third transmission gear (47) is rotatably arranged in the wrapping machine base (41). The third transmission gear (47) meshes with the first transmission gear (45) and the second transmission gear (46). The output end of the wrapping drive (42) is coaxially fixed with the third transmission gear (47).

8. The device for wrapping the insulation layer of a motor hairpin wire according to claim 1, characterized in that: The first drive assembly includes a first transmission device, and the first drive assembly includes a first vertical drive member (11) and a first horizontal drive member (12). The first vertical drive member (11) is fixedly disposed at the output end of the first transmission device. The first transmission device is used to drive the first drive assembly to move along a first direction. The first horizontal drive member (12) is fixedly disposed at the output end of the first vertical drive member (11). The first vertical drive member (11) is used to drive the clamping frame (21) connected to it to move along the vertical direction. The first horizontal drive member (12) is used to drive the clamping frame (21) connected to it to move along a second direction. The first direction, the second direction and the vertical direction are perpendicular to each other.

9. The device for wrapping the insulation layer of a motor hairpin wire according to claim 8, characterized in that: The device includes a second transmission device. The second drive assembly includes a second vertical drive member (13) and a second horizontal drive member (14). The second vertical drive member (13) is fixedly disposed at the output end of the second transmission device. The second transmission device is used to drive the second drive assembly to move along a first direction. The second horizontal drive member (14) is fixedly disposed at the output end of the second vertical drive member (13). The second vertical drive member (13) is used to drive the clamping frame (21) connected to it in transmission to move in the vertical direction. The second horizontal drive member (14) is used to drive the clamping frame (21) connected to it in transmission to move in the second direction.

10. The device for wrapping the insulation layer of a motor hairpin wire according to claim 9, characterized in that: The output ends of the first horizontal drive member (12) and the second horizontal drive member (14) are respectively provided with rotation drive members (15), and the clamping frame (21) is fixedly disposed at the output end of the rotation drive member (15).

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