Die head driving device for manufacturing coreless motor coil

Abstract

The invention discloses a die head driving device for manufacturing a coreless motor coil, and relates to the technical field of coil manufacturing, the die head driving device comprises a servo motor, a first chain wheel transmission part, a transition chain wheel part and a die head, one side of the first chain wheel transmission part is in driving connection with an output shaft of the servo motor, and the other side of the first chain wheel transmission part rotatably sleeves a rotating main shaft; the transition chain wheel parts are rotationally arranged on the two sides of the rotating main shaft and the first flying fork in a sleeving mode, the first flying fork is connected to the rotating main shaft in a sleeving mode and located between the transition chain wheel parts, and one sides of the transition chain wheel parts are arranged on the rotating main shaft in a sleeving mode and connected with the first chain wheel transmission part; the die head rotationally sleeves one end of the rotating main shaft, and the other side of the transition chain wheel component sleeves the rotating main shaft and is connected with the die head. The driving device drives the first chain wheel transmission part to move through the servo motor, and bypasses the first flying fork through the transition chain wheel part to drive the die head to rotate, so that the non-line-breaking continuous winding operation in the full-automatic winding process of a motor coil is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of coil manufacturing equipment, and particularly relates to a die head driving device for manufacturing a coreless motor coil. Background Art

[0002] The coreless coil is a commonly used accessory in industrial equipment. The coreless coil is generally widely used in the micro drive motor in the equipment and is widely used because of its small size, high output speed, low moment of inertia, no tooth slots, low friction and other characteristics.

[0003] Chinese invention patent with publication number CN111262401A discloses a flying fork winding mechanism with an eccentric shaft positioning intermediate claw. When this technical solution works, the workpiece is fixed on the tooling, the wire passes through one end of the hollow shaft, passes through the wire outlet wheel from the through groove, and then winds around the workpiece through the wire guiding wheel on the flying fork. The motor is started, the hollow shaft rotates, driving the flying fork to rotate, realizing the winding of the wire on the workpiece. However, the overall winding accuracy is poor, the winding quality is low, and it is difficult for the die head with a fixed size to realize the winding column with a gradually increasing size.

[0004] In the prior art, there is a method of positioning the coil through a claw module. The claw module is coaxially arranged with the main shaft fixing the flying fork rod. During the operation of the mechanism, it is necessary to ensure that the flying fork rod rotates and the claw module does not rotate. Therefore, generally, an eccentric wheel is fixed at the front end of the main shaft to position the claw module through the eccentric wheel, and the eccentric wheel is driven by a synchronous belt, or the weight is increased under the claw to position by using the gravity of the parts. The above two methods are extremely unstable during the winding process and are prone to winding chaos. Not only can continuous and gapless winding not be achieved, but also the slot fill factor of the stator is affected. Summary of the Invention

[0005] In view of this, in order to solve the defects existing in the above technologies, the present invention provides a die head driving device for manufacturing a coreless motor coil.

[0006] The technical solution of the present invention is as follows: A die head driving device for manufacturing a coreless motor coil, comprising: A servo motor, installed on one side of the rotating seat; A first sprocket transmission component, one side of the first sprocket transmission component is drivingly connected to the output shaft of the servo motor, and the other side is rotatably sleeved on the rotating main shaft; A transition sprocket component, rotatably sleeved on both sides of the rotating main shaft and the first flying fork, and the first flying fork is sleeved on the rotating main shaft and located between the transition sprocket components. One side of the transition sprocket component is sleeved on the rotating main shaft and is fixedly connected to the part of the first sprocket transmission component sleeved on the rotating main shaft; The die head is rotatably sleeved on one end of the rotary main shaft away from the wire threading core shaft component, and the other side of the transition sprocket component is sleeved on the rotary main shaft and fixedly connected to the die head; The servo motor is adapted to drive the first sprocket drive component to move, and drive the die head to rotate through the transition sprocket component around the first flying fork.

[0007] Optionally, the servo motor is fixedly installed on one side of the rotary seat through a motor mounting seat, and the motor mounting seat is of an L-shaped structure.

[0008] Optionally, the first sprocket drive component includes: A first sprocket, sleeved on the output shaft of the servo motor; A first main shaft drive pulley, rotatably sleeved on the rotary main shaft through a self-aligning ball bearing; A first chain belt, one side of the first chain belt is meshed and connected to the first sprocket, and the other side is meshed and connected to the first main shaft drive pulley.

[0009] Optionally, the transition sprocket component includes: An inert connecting rod, rotatably installed on one side of the first flying fork away from the rotary main shaft, and the inert connecting rod is arranged parallel to the rotary main shaft; A first side sprocket drive structure, arranged on one side of the inert connecting rod and the first flying fork, one side of the first side sprocket drive structure is connected to one end of the inert connecting rod, and the other side is sleeved on the rotary main shaft and fixedly connected in parallel with the first main shaft drive pulley; A second side sprocket drive structure, arranged on the other side of the inert connecting rod and the first flying fork, one side of the second side sprocket drive structure is connected to the other end of the inert connecting rod, and the other side is sleeved on the rotary main shaft and fixedly connected to the end face of the die head; The first main shaft drive pulley is adapted to drive the first side sprocket drive structure to move, and the first side sprocket drive structure and the second side sprocket drive structure are adapted to move synchronously under the action of the inert connecting rod, thereby driving the die head to rotate relative to the rotary main shaft.

[0010] Optionally, the first side sprocket drive structure includes: A second main shaft drive pulley, sleeved on the rotary main shaft, and the second main shaft drive pulley is fixedly connected in parallel with the first main shaft drive pulley coaxially; A second sprocket, sleeved and connected to one end of the inert connecting rod close to the first sprocket drive component; A second chain belt, one side of which is in meshing transmission with the second sprocket, and the other side is in meshing transmission with the second main shaft drive pulley.

[0011] Optionally, the second side sprocket drive structure includes: A third main shaft drive pulley sleeved on the rotating main shaft, and the third main shaft drive pulley is coaxially connected to the end face of the die head; A third sprocket sleeved and connected to the other end of the inert connecting rod, one side of the third chain belt meshes and drives with the third sprocket, and the other side meshes and drives with the third main shaft drive pulley; A third chain belt, one side of which meshes and drives with the third sprocket, and the other side meshes and drives with the third main shaft drive pulley.

[0012] Optionally, the die head includes a first cylindrical section, a first conical end, and a second cylindrical section that are coaxially and sequentially connected; A first bearing hole and a first locking hole that are coaxially and sequentially connected are opened at the axis center of the first cylindrical section. A first outer stop is provided on one side of the rotating main shaft close to the first cylindrical section, and several angular contact ball bearings are provided between the first outer stop and the first bearing hole. A second locking member is provided between the first outer stop and the first locking hole, and the width dimension of the first outer stop is equal to the sum of the width dimensions of the angular contact ball bearings and the second locking member.

[0013] Optionally, a first tapered hole and a first spring hole that are coaxially and sequentially connected are opened at the axis center of the first conical end; A first quadrilateral hole is opened at the axis center of the second cylindrical section, and the width dimension of the first quadrilateral hole is smaller than the aperture dimension of the first spring hole; A coil core shaft structure is slidably inserted between the interior of the die head and the end face of the rotating main shaft. The coil core shaft structure includes a first flange, a first cylindrical section, and a first tetrahedral column that are coaxially and sequentially connected, and the first tetrahedral column is slidably inserted into the first quadrilateral hole. The first flange and the first cylindrical section are located in the first tapered hole and the first spring hole. A first spring is sleeved on the outer circumference of the first cylindrical section, one end of the first spring is connected to the side wall of the first spring hole, and the other end is connected to the end face of the first flange.

[0014] Optionally, on the sides of the first main shaft drive pulley and the second main shaft drive pulley that are close to each other, a first inner stop and a second inner stop are respectively provided. The rotating main shaft is located inside the first main shaft drive pulley and the second main shaft drive pulley and includes a first shaft section and a second shaft section. The end face of the first shaft section abuts against the lower end face on one side of the spherical roller bearing, and the side end face of the first inner stop abuts against the upper end face on one side of the spherical roller bearing; the side end face of the second inner stop abuts against the upper end face on the other side of the spherical roller bearing, and a second pressing spacer sleeve sleeved on the second shaft section is provided between the lower end face on the other side of the spherical roller bearing and the end face of the first fly fork.

[0015] Optionally, a second locking member is provided on the side of the first fly fork away from the second pressing spacer sleeve, and a second runner mounting bracket is integrally connected to the side end of the first fly fork away from the inert connecting rod.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The die head drive device for manufacturing the coil of the coreless motor in the present invention includes a servo motor, a first sprocket transmission component, a transition sprocket component, and a die head. The servo motor is installed on one side of the rotating base. The closed-loop control characteristic of the servo motor can accurately control the rotation speed and angle of the die head, thereby improving the manufacturing precision of the coreless motor coil; one side of the first sprocket transmission component is drivingly connected to the output shaft of the servo motor, and the other side is rotatably sleeved on the rotating main shaft, making the power transmission more direct and efficient. The sprocket transmission has higher torque transmission capacity and lower sliding loss compared with the belt transmission or gear transmission; the transition sprocket component is rotatably sleeved on both sides of the rotating main shaft and the first fly fork, and the first fly fork is sleeved on the rotating main shaft and is located between the transition sprocket components. One side of the transition sprocket component is sleeved on the rotating main shaft and is fixedly connected to the part of the first sprocket transmission component sleeved on the rotating main shaft. In this way, through the combination of the sprocket and the rotating main shaft, a compact mechanical structure is achieved, and the power transmission path is short, reducing the possibility of mechanical vibration and deformation.

[0017] 2. The first flying fork enables the winding device to achieve high-speed and stable rotational motion, ensuring the accuracy of the rotation speed and rotation angle of the rotating main shaft, thereby improving the quality and efficiency of winding. The core shaft adjustment component can flexibly adjust the position of the wire threading core shaft component according to actual winding requirements. When winding hollow cup motor coils of different specifications, by controlling the driving cylinder, the position of the wire threading core shaft component can be quickly changed, thereby adjusting the wire threading path and winding starting point of the copper wire, improving the adaptability of the device and the flexibility of winding. This die head driving device for manufacturing hollow cup motor coils realizes fully automatic winding operation of hollow cup motor coils through the coordinated work of each component. Its design has significant technical effects in improving winding accuracy, efficiency, and flexibility, and can meet the requirements for high-quality and high-efficiency production of hollow cup motor coils.

[0018] 3. Through the cooperation of the die head and the first flying fork winding method, continuous wire winding production of the coil can be completed, solving the technical problem that existing hollow cup motors require continuous wire during multi-group coil winding. Compared with the existing manual winding operation method, it can not only ensure the quality and consistency of the coil, but also significantly improve the efficiency.

[0019] 4. Through the cooperation of the die head and the first flying fork winding method, in the flying fork winding method, the synchronous motion of the first side sprocket drive structure and the second side sprocket drive structure is utilized to achieve the situation where the first flying fork on the rotating main shaft rotates while the die head does not rotate; at the same time, the synchronous control of the first side sprocket drive structure and the second side sprocket drive structure is used to make the first flying fork on the rotating main shaft not rotate, and the added servo motor drives the second main shaft drive pulley in the first side sprocket drive structure to rotate to make only the die head rotate. At the same time, the wire threading pipe in the core shaft adjustment component is used to push the round head ejector to move, thereby pressing the coil core shaft structure to avoid the situation where the rotation of the die head drives the wire threading pipe in the core shaft adjustment component to rotate. This driving device can realize continuous wire winding without interruption, meeting the requirements for fully automatic winding of small hollow cup motor coils. Brief Description of the Drawings

[0020] Figure 1 It is a three-dimensional structure diagram of the die head driving device for manufacturing hollow cup motor coils in an embodiment of the present invention; Figure 2 It is a front view structure diagram of the die head driving device for manufacturing hollow cup motor coils in an embodiment of the present invention; Figure 3 It is a sectional view structure diagram of the die head driving device for manufacturing hollow cup motor coils in an embodiment of the present invention; Figure 4 It is a three-dimensional structure diagram of the shaft head in an embodiment of the present invention; Figure 5Schematic diagram of the internal assembly structure of the shaft head in the embodiment of the present invention; Figure 6 3D structure diagram of the coil mandrel structure in the embodiment of the present invention.

[0021] Description of the reference numerals: 1 - Servo motor; 11 - Motor mounting base; 2 - First sprocket drive component; 21 - First sprocket; 22 - First main shaft drive pulley; 221 - First inner stop; 23 - First chain belt; 24 - Self-aligning ball bearing; 3 - Intermediate sprocket component; 31 - Inert connecting rod; 32 - First side sprocket drive structure; 321 - Second main shaft drive pulley; 3211 - Second inner stop; 322 - Second sprocket; 323 - Second chain belt; 33 - Second side sprocket drive structure; 331 - Third main shaft drive pulley; 332 - Third sprocket; 333 - Third chain belt; 4 - Die head; 41 - First cylindrical section; 411 - First bearing hole; 412 - First locking hole; 42 - First conical end; 421 - First conical hole; 422 - First spring hole; 43 - Second cylindrical section; 431 - First quadrilateral hole; 44 - Angular contact ball bearing; 45 - First locking part; 5 - Rotating seat; 6 - Rotating main shaft; 61 - First shaft section; 62 - Second shaft section; 63 - First outer stop; 7 - First flying fork; 71 - Second locking part; 72 - Second pressing spacer; 73 - Second runner mounting bracket; 8 - Threading mandrel component; 9 - Coil mandrel structure; 91 - First flange; 92 - Third cylindrical section; 93 - First tetrahedral column; 94 - First spring. Detailed implementation manners

[0022] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Figure 1-6 Shown is a die head drive device for manufacturing a coreless motor coil provided by an embodiment of the present invention. The die head drive device includes a servo motor 1, a first sprocket drive component 2, a transition sprocket component 3, and a die head 4, wherein: The servo motor 1 is installed on one side of a rotating seat 5. The closed-loop control characteristic of the servo motor 1 can accurately control the rotation speed and angle of the die head 4, thereby improving the manufacturing precision of the coreless motor coil.

[0024] One side of the first sprocket drive component 2 is drivingly connected to the output shaft of the servo motor 1, and the other side is rotatably sleeved on a rotating main shaft 6, making the power transmission more direct and efficient. Compared with belt drive or gear drive, sprocket drive has higher torque transmission capacity and lower sliding loss.

[0025] The transition sprocket component 3 is rotatably sleeved on both sides of the rotating main shaft 6 and the first fork 7, and the first fork 7 is sleeved on the rotating main shaft 6 and located between the transition sprocket components 3. One side of the transition sprocket component 3 is sleeved on the rotating main shaft 6 and fixedly connected to the part of the first sprocket drive component 2 sleeved on the rotating main shaft 6. In this way, through the combination of the sprocket and the rotating main shaft, a compact mechanical structure is realized, and the power transmission path can also be shortened, reducing the possibility of mechanical vibration and deformation.

[0026] The die head 4 is rotatably sleeved on one end of the rotating main shaft 6 away from the wire threading core shaft component 8. The other side of the transition sprocket component 3 is sleeved on the rotating main shaft 6 and fixedly connected to the die head 4; the servo motor 1 is adapted to drive the first sprocket drive component 2 to move, and drive the die head 4 to rotate around the first fork 7 through the transition sprocket component 3. By adjusting the tooth ratio of the sprocket or the parameters of the servo motor, the rotation speed and angle of the die head 4 can be flexibly changed. This flexibility enables the device to adapt to the manufacturing requirements of coreless motor coils of different specifications.

[0027] To achieve the stable rotation of the die head 4 and be able to adjust the rotation speed and angle as needed, the die head driving device in this embodiment includes a servo motor 1, a first sprocket transmission component 2, a transition sprocket component 3, and a die head 4. The servo motor 1 is installed on one side of the rotating seat 5. The die head 4 is rotatably sleeved on one end of the rotating main shaft 6 away from the threading core shaft component 8. One end of the transition sprocket component 3 is drivingly connected to the first sprocket transmission component 2, and the other end of the transition sprocket component 3 is drivingly connected to the die head 4. The side of the first sprocket transmission component 2 close to the servo motor 1 is drivingly connected to the servo motor 1. In this way, by coordinating the rotation of the die head 4 with the rotation of the first flying fork 7, a complete winding method is formed, improving the winding accuracy and efficiency. At the same time, the sprocket transmission method can ensure the stability and reliability of power transmission.

[0028] Therefore, through precise die head rotation control, the uniformity and consistency of coil winding can be ensured, reducing coil quality problems caused by uneven rotation; the high efficiency of sprocket transmission can reduce energy loss, improve the overall operating efficiency of the device, and at the same time reduce the energy consumption of the equipment. This die head driving device realizes high-precision and high-efficiency die head rotation control through the combination of a servo motor and sprocket transmission, and has the advantages of a compact structure, flexible expandability, and easy maintenance.

[0029] Specifically, please refer to Figure 1 As shown, the servo motor 1 is used to provide the power source for the entire die head driving device. The servo motor 1 can achieve precise speed and position control, thus ensuring the rotation accuracy and stability of the die head 4 during the winding process. Its stable power output provides a reliable power guarantee for the entire winding operation. In this embodiment, the servo motor 1 is fixedly installed on one side of the rotating seat 5 through the motor mounting seat 11, and the motor mounting seat 11 is of an L-shaped structure.

[0030] Therefore, the setting of the L-shaped motor mounting seat provides stable support for the servo motor 1. The two vertical support surfaces of the L-shaped structure can disperse the load, reduce vibration and shaking, thereby improving the stability of motor operation.

[0031] Specifically, please refer to Figure 1 、 2 As shown, the first sprocket transmission component 2 includes a first sprocket 21, a first chain 23, and a first main shaft drive pulley 22, where: The first sprocket wheel 21 is sleeved on the output shaft of the servo motor 1; the first main shaft driving pulley 22 is rotatably sleeved on the rotating main shaft 6 through a self-aligning ball bearing 24. The self-aligning ball bearing 24 is used to ensure the stable rotation of the first main shaft driving pulley 22 on the rotating main shaft 6 and can compensate for the slight offset or misalignment of the rotating main shaft 6, thereby improving the stability and reliability of the transmission system; one side of the first chain belt 23 is meshed and connected to the first sprocket wheel 21, and the other side is meshed and connected to the first main shaft driving pulley 22.

[0032] Specifically in this embodiment, the first sprocket wheel 21 is sleeved on the output shaft of the servo motor 1, and the first main shaft driving pulley 22 is rotatably sleeved on the rotating main shaft 6 through a self-aligning ball bearing 24. In this way, through the first sprocket wheel transmission component 2, the efficient transmission of power can be realized. The cooperation of the first sprocket wheel 21 and the first chain belt 23 can ensure the synchronism and reliability of power transmission and reduce the sliding and energy loss in the power transmission process.

[0033] Thus, the first sprocket wheel transmission component 2 can efficiently transmit the rotational power of the servo motor 1 to the first main shaft driving pulley 22 through the meshing connection of the sprocket wheel and the chain belt. Compared with other transmission methods (such as belt transmission or gear transmission), chain transmission has higher torque transmission capacity and lower energy loss.

[0034] Specifically, please refer to Figure 1 、 2 As shown, the transition sprocket wheel component 3 includes an inert connecting rod 31, a first side sprocket wheel transmission structure 32 and a second side sprocket wheel transmission structure 33, where: The inert connecting rod 31 is rotatably installed on the side of the first fork 7 away from the rotating main shaft 6, and the inert connecting rod 31 is arranged parallel to the rotating main shaft 6; The first side sprocket wheel transmission structure 32 is arranged on one side of the inert connecting rod 31 and the first fork 7. One side of the first side sprocket wheel transmission structure 32 is connected to one end of the inert connecting rod 31, and the other side is sleeved on the rotating main shaft 6 and fixedly connected in parallel with the first main shaft driving pulley 22.

[0035] Specifically in this embodiment, the inert connecting rod 31 is used to enable the first side sprocket wheel transmission structure 32 and the second side sprocket wheel transmission structure 33 to move synchronously. This synchronous movement ensures that the die head 4 can rotate relative to the rotating main shaft 6 and avoids the interruption of continuous winding caused by synchronism. In addition, this setting makes the power transmission more flexible and can adapt to complex mechanical structures and spatial layouts. At the same time, the sprocket wheel transmission structures on both sides ensure the symmetry and balance of power transmission and improve the stability of the rotation of the die head 4.

[0036] Specifically, please refer to Figure 1As shown, the second-side sprocket drive structure 33 is arranged on the other side of the inert connecting rod 31 and the first fork 7. One side of the second-side sprocket drive structure 33 is connected to the other end of the inert connecting rod 31, and the other side is sleeved on the rotating main shaft 6 and fixedly connected to the end face of the die head 4; The first main shaft drive pulley 22 is adapted to drive the first-side sprocket drive structure 32 to move. The first-side sprocket drive structure 32 and the second-side sprocket drive structure 33 are adapted to move synchronously under the action of the inert connecting rod 31, thereby driving the die head 4 to rotate relative to the rotating main shaft 6.

[0037] Specifically in this embodiment, the second-side sprocket drive structure 33 is composed of a third main shaft drive pulley 331, a third chain belt 333 and a third sprocket 332. The third main shaft drive pulley 331 is sleeved on the rotating main shaft 6. The third sprocket 332 is connected to the other end of the inert connecting rod 31. One side of the third chain belt 333 is meshed and driven with the third sprocket 332, and the other side of the third chain belt 333 is meshed and driven with the third main shaft drive pulley 331. In this way, the second-side sprocket drive structure 33 and the first-side sprocket drive structure 32 act together to further ensure the balance and stability of power transmission. The sprocket drive structures on both sides are symmetrically distributed, making the power received by the rotating main shaft 6 more uniform, reducing the vibration and swing during rotation, and improving the rotation accuracy of the die head 4.

[0038] The first-side sprocket drive structure 32 is arranged on one side of the inert connecting rod 31 and the first fork 7. The first-side sprocket drive structure 32 is composed of a second main shaft drive pulley 321, a second sprocket 322 and a second chain belt 323. The first-side sprocket drive structure 32 is driven by the first sprocket drive component 2.

[0039] Specifically, please refer to Figure 3 、 4 As shown in FIGS. 5, the die head 4 includes a first cylindrical section 41, a first conical end 42 and a second cylindrical section 43 that are coaxially and sequentially connected, where: A first bearing hole 411 and a first locking hole 412 that are coaxially and sequentially connected are opened at the axis center of the first cylindrical section 41. A first outer stop 63 is provided on one side of the rotating main shaft 6 close to the first cylindrical section 41, and a number of angular contact ball bearings 44 are provided between the first outer stop 63 and the first bearing hole 411. Angular contact ball bearings 44 are provided inside the first cylindrical section 41 of the die head 4. This kind of bearing can bear the combined radial and axial loads, ensuring the stability of the die head 4 during rotation.

[0040] A first locking member 45 is provided between the first outer stop 63 and the first locking hole 412. The width dimension of the first outer stop 63 is equal to the sum of the width dimensions of the angular contact ball bearing 44 and the first locking member 45. In this way, the die head 4 is connected to the rotating main shaft 6 through the angular contact ball bearing 44 and the first locking member 45, and this design makes the installation and disassembly of the die head 4 more convenient.

[0041] Specifically, please refer to Figure 5 As shown, a first tapered hole 421 and a first spring hole 422 are coaxially and sequentially formed in the axial center of the first cone end 42; a first quadrilateral hole 431 is formed in the axial center of the second cylindrical section 43, and the width dimension of the first quadrilateral hole 431 is smaller than the aperture dimension of the first spring hole 422.

[0042] A coil mandrel structure 9 is slidably inserted between the interior of the die head 4 and the end face of the rotating main shaft 6. The coil mandrel structure 9 includes a first flange 91, a third cylindrical section 92, and a first tetrahedral column 93 that are coaxially and sequentially connected. The first tetrahedral column 93 is slidably inserted into the first quadrilateral hole 431. The first flange 91 and the third cylindrical section 92 are located in the first tapered hole 421 and the first spring hole 422. A first spring 94 is sleeved on the outer circumference of the third cylindrical section 92. One end of the first spring 94 is connected to the side wall of the first spring hole 422, and the other end is connected to the end face of the first flange 91.

[0043] Thus, the coil mandrel structure 9 is slidably inserted into the first quadrilateral hole 431 of the die head 4 through the first tetrahedral column 93, ensuring the stability and positioning accuracy of the coil mandrel structure 9 inside the die head 4. The cooperative design of the quadrilateral hole and the tetrahedral column can effectively prevent the radial displacement of the coil mandrel during rotation.

[0044] Specifically, please refer to Figure 3 As shown, a first inner stop 221 and a second inner stop 3211 are respectively formed on the sides of the first main shaft drive pulley 22 and the second main shaft drive pulley 321 that are close to each other. The rotating main shaft 6 located inside the first main shaft drive pulley 22 and the second main shaft drive pulley 321 includes a first shaft section 61 and a second shaft section 62. The end face of the first shaft section 61 abuts against the lower end face of one side of the spherical roller bearing 24, and the side end face of the first inner stop 221 abuts against the upper end face of one side of the spherical roller bearing 24; the side end face of the second inner stop 3211 abuts against the upper end face of the other side of the spherical roller bearing 24. A second compression spacer 72 sleeved on the second shaft section 62 is provided between the lower end face of the other side of the spherical roller bearing 24 and the end face of the first fork 7.

[0045] In this way, through the setting of the self-aligning ball bearing 24, the stability of the rotating main shaft 6 during operation is ensured. The self-aligning ball bearing 24 can compensate for the slight offset or misalignment of the rotating main shaft 6, thereby improving the stability and reliability of the transmission system.

[0046] The inner stop design of the first main shaft drive pulley 22 and the second main shaft drive pulley 321 ensures the installation accuracy and stability of the self-aligning ball bearing 24. The side end faces of the inner stop abut against the upper and lower end faces of the self-aligning ball bearing 24, restricting the axial displacement of the bearing.

[0047] Specifically, please refer to Figure 3 As shown, on the side of the first fork 7 away from the second pressing spacer 72, there is a second locking member 71, and on the side end of the first fork 7 far from the inert connecting rod 31, there is also an integrally connected second runner mounting bracket 73.

[0048] In this embodiment, the first fork 7, as a connecting component, not only needs to be stable itself but also provides a reliable installation foundation for other components. The second pressing spacer 72 and the second locking member 71 work together to ensure the stability of the rotating main shaft 6, while the second runner mounting bracket 73 provides convenience for the installation of the runner.

[0049] The rotation and swing of the first fork 7 are used to control the rhythm and trajectory of copper wire winding. In this embodiment, the rotating main shaft 6 is rotatably mounted on the rotating seat 5, enabling the rotating main shaft 6 to rotate flexibly on the rotating seat 5; the first fork 7 is sleeved on the side of the rotating main shaft 6 away from the rotating seat 5. When the rotating main shaft 6 rotates and drives the first fork 7 to rotate together, the winding action of the copper wire is realized.

[0050] Specifically, please refer to Figure 2 、 3 As shown, the wire threading mandrel component 8 includes a wire threading tube and a moving baffle. One side of the wire threading tube is inserted into the central hole of the rotating main shaft 6, providing a wire threading channel for the copper wire. The moving baffle is sleeved on the wire threading tube. The moving baffle is installed on the flange of the wire threading tube through a thrust ball bearing and a bearing gland, and is located on the side where the wire threading tube extends out of the rotating main shaft. In this way, the wire threading mandrel component 8 can enable the copper wire to smoothly pass through the wire threading tube and enter the central hole of the rotating main shaft 6, and the position of the wire threading tube in the rotating main shaft 6 can be changed by adjusting the moving baffle. The thrust ball bearing can reduce the friction during the movement of the moving baffle, improve the smoothness and accuracy of the movement, and the bearing gland can ensure the installation stability of the moving baffle and prevent it from loosening during operation.

[0051] The die head 4 is rotatably sleeved on one end of the rotary main shaft 6 far from the threading mandrel component 8 through angular contact ball bearings 44 and the first locking member 45. The end face of the die head 4 close to the first flying fork 7 is fixedly connected to the third main shaft driving pulley 331. This installation method of the die head 4 ensures its stability and precision during high-speed rotation. Among them, the angular contact ball bearings 44 can withstand large radial and axial loads, reduce friction and wear during rotation, and extend the service life of the die head 4. At the same time, the fixed connection between the die head 4 and the third main shaft driving pulley 331 ensures the directness and efficiency of power transmission, improving the winding efficiency and quality.

[0052] Specifically, please refer to Figure 3 As shown, the threading mandrel component 8 further includes a round head ejector. The round head ejector is inserted into one end of the threading tube close to the die head 4. The coil mandrel structure 9 is slidably connected in the sliding hole of the die head 4. A first spring is sleeved on the outer circumference of the coil mandrel structure 9. One end of the first spring abuts against the inner side wall of the die head 4, and the other end abuts against the end face of the rotary main shaft 6. The round head ejector is adapted to press against the end face of the coil mandrel structure 9.

[0053] In this embodiment, the round head ejector is mainly used to perform precise pressing operations on the coil mandrel structure 9. During the winding process, through the pressing action of the round head ejector, it can ensure that the coil mandrel structure 9 maintains a stable position in the sliding hole of the die head 4, preventing it from shifting or shaking during high-speed rotation and winding. This precise pressing control helps to improve the winding precision and stability, ensuring the quality consistency of the coil.

[0054] The sliding connection of the coil mandrel structure 9 enables it to adjust its position in the sliding hole of the die head 4 to meet the winding requirements of different specifications of hollow cup motor coils. The setting of the first spring provides an elastic supporting force for the coil mandrel structure 9, enabling it to produce a certain elastic deformation when pressed by the round head ejector, thereby achieving more flexible adjustment and buffering effects. This elastic support helps to reduce coil quality problems caused by mechanical shock or vibration during the winding process, improving the winding stability and reliability.

[0055] By combining the flying fork winding and the flat winding methods, in the flying fork winding method, the synchronous movement of the first side sprocket drive structure 32 and the second side sprocket drive structure 33 is utilized to achieve the situation where the first flying fork 7 on the rotating main shaft 6 rotates while the die head 4 does not rotate; at the same time, the synchronous control of the first side sprocket drive structure 32 and the second side sprocket drive structure 33 is used to make the first flying fork 7 on the rotating main shaft 6 not rotate, and the added servo motor 1 drives the second main shaft drive pulley 321 in the first side sprocket drive structure 32 to rotate to a state where only the die head 4 rotates. At the same time, the push tube in the threading mandrel component 8 is used to push the round head ejector to move, thereby pressing the coil mandrel structure 9 to avoid the situation where the rotation of the die head 4 drives the push tube in the threading mandrel component 8 to rotate.

[0056] The drive device can achieve continuous winding without breaking the wire, and the connecting wires between each group of coils are relatively short, meeting the requirements of fully automated winding of the coils of small coreless motors.

[0057] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A die head driving device for manufacturing a coreless motor coil, characterized in that, Comprising: A servo motor (1), installed on one side of a rotating base (5); A first sprocket drive component (2), one side of the first sprocket drive component (2) is drivingly connected to the output shaft of the servo motor (1), and the other side is rotatably sleeved on a rotating main shaft (6); A transition sprocket component (3), rotatably sleeved on both sides of the rotating main shaft (6) and the first fork (7), and the first fork (7) is sleeved on the rotating main shaft (6) and located between the transition sprocket components (3). One side of the transition sprocket component (3) is sleeved on the rotating main shaft (6) and fixedly connected to the part of the first sprocket drive component (2) sleeved on the rotating main shaft (6); A die head (4), rotatably sleeved on one end of the rotating main shaft (6) away from the wire threading mandrel component (8). The other side of the transition sprocket component (3) is sleeved on the rotating main shaft (6) and fixedly connected to the die head (4); The servo motor (1) is adapted to drive the first sprocket drive component (2) to move, and drive the die head (4) to rotate through the transition sprocket component (3) around the first fork (7).

2. The die head driving device for manufacturing the coil of a coreless motor according to claim 1, characterized in that, The servo motor (1) is fixedly installed on one side of the rotating base (5) through a motor mounting seat (11), and the motor mounting seat (11) is of an L-shaped structure.

3. The die head driving device for manufacturing the coil of a coreless motor according to claim 1, characterized in that, The first sprocket drive component (2) includes: A first sprocket (21), sleeved on the output shaft of the servo motor (1); A first main shaft drive pulley (22), rotatably sleeved on the rotating main shaft (6) through a self-aligning ball bearing (24); A first chain belt (23), one side of the first chain belt (23) is meshingly connected to the first sprocket (21), and the other side is meshingly connected to the first main shaft drive pulley (22).

4. The die head driving device for manufacturing the coil of the coreless motor according to claim 3, characterized in that, The transition sprocket component (3) includes: An inert connecting rod (31), rotatably installed on one side of the first fork (7) away from the rotating main shaft (6), and the inert connecting rod (31) is arranged parallel to the rotating main shaft (6); A first side sprocket drive structure (32), arranged on one side of the inert connecting rod (31) and the first fork (7). One side of the first side sprocket drive structure (32) is connected to one end of the inert connecting rod (31), and the other side is sleeved on the rotating main shaft (6) and fixedly connected in parallel with the first main shaft drive pulley (22); A second side sprocket drive structure (33), arranged on the other side of the inert connecting rod (31) and the first fork (7). One side of the second side sprocket drive structure (33) is connected to the other end of the inert connecting rod (31), and the other side is sleeved on the rotating main shaft (6) and fixedly connected to the end face of the die head (4); The first main shaft drive pulley (22) is adapted to drive the first side sprocket drive structure (32) to move. The first side sprocket drive structure (32) and the second side sprocket drive structure (33) are adapted to move synchronously under the action of the inert connecting rod (31), thereby driving the die head (4) to rotate relative to the rotating main shaft (6).

5. The die head driving device for manufacturing the coil of a coreless motor according to claim 4, characterized in that, The first side sprocket drive structure (32) includes: A second main shaft drive pulley (321) sleeved on the rotating main shaft (6), and the second main shaft drive pulley (321) is coaxially and juxtaposedly fixedly connected to the first main shaft drive pulley (22); A second sprocket (322) sleeved and connected to one end of the inert connecting rod (31) close to the first sprocket drive component (2); A second chain belt (323), one side of which is in meshing transmission with the second sprocket (322), and the other side of which is in meshing transmission with the second main shaft drive pulley (321).

6. The die head driving device for manufacturing the coil of a coreless motor according to claim 4, characterized in that, The second side sprocket drive structure (33) includes: A third main shaft drive pulley (331) sleeved on the rotating main shaft (6), and the third main shaft drive pulley (331) is coaxially connected to the end face of the die head (4); A third sprocket (332) sleeved and connected to the other end of the inert connecting rod (31); A third chain belt (333), one side of which is in meshing transmission with the third sprocket (332), and the other side of which is in meshing transmission with the third main shaft drive pulley (331).

7. The die head driving device for manufacturing a coreless motor coil according to claim 1, wherein, The die head (4) includes a first cylindrical section (41), a first conical end (42), and a second cylindrical section (43) that are coaxially and sequentially connected; A first bearing hole (411) and a first locking hole (412) that are coaxially and sequentially connected are opened at the axis center of the first cylindrical section (41). On one side of the rotating main shaft (6) close to the first cylindrical section (41), there is a first outer stop (63). Between the first outer stop (63) and the first bearing hole (411), there are several angular contact ball bearings (44). Between the first outer stop (63) and the first locking hole (412), there is a first locking member (45). The width dimension of the first outer stop (63) is equal to the sum of the width dimensions of the angular contact ball bearings (44) and the first locking member (45).

8. The die head driving device for manufacturing a hollow cup motor coil according to claim 7, wherein, A first conical hole (421) and a first spring hole (422) that are coaxially and sequentially connected are opened at the axis center of the first conical end (42); A first quadrilateral hole (431) is opened at the axis center of the second cylindrical section (43), and the width dimension of the first quadrilateral hole (431) is smaller than the aperture dimension of the first spring hole (422); A coil core shaft structure (9) is slidably inserted between the inside of the die head (4) and the end face of the rotating main shaft (6). The coil core shaft structure (9) includes a first flange (91), a first cylindrical section (92), and a first tetrahedral column (93) that are coaxially and sequentially connected. The first tetrahedral column (93) is slidably inserted into the first quadrilateral hole (431). The first flange (91) and the first cylindrical section (92) are located in the first conical hole (421) and the first spring hole (422). A first spring (94) is sleeved on the outer circumference of the first cylindrical section (92). One end of the first spring (94) is connected to the side wall of the first spring hole (422), and the other end is connected to the end face of the first flange (91).

9. The die head driving device for manufacturing the coil of a coreless motor according to claim 5, characterized in that, On the sides of the first main shaft drive pulley (22) and the second main shaft drive pulley (321) that are close to each other, a first inner stop (221) and a second inner stop (3211) are respectively provided. The rotating main shaft (6) is located inside the first main shaft drive pulley (22) and the second main shaft drive pulley (321) and includes a first shaft section (61) and a second shaft section (62). The end face of the first shaft section (61) abuts against the lower end face of one side of the spherical roller bearing (24), and the side end face of the first inner stop (221) abuts against the upper end face of one side of the spherical roller bearing (24); the side end face of the second inner stop (3211) abuts against the upper end face of the other side of the spherical roller bearing (24), and a second pressing spacer sleeve (72) sleeved on the second shaft section (62) is provided between the lower end face of the other side of the spherical roller bearing (24) and the end face of the first fork (7).

10. The die head driving device for manufacturing the coil of a coreless motor according to claim 9, characterized in that, A second locking member (71) is provided on the side of the first fork (7) facing away from the second pressing spacer sleeve (72), and a second runner mounting bracket (73) is integrally connected to the side end of the first fork (7) far from the inert connecting rod (31).

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