Multi-head synchronous winding equipment based on CNC control and winding method thereof
Through the CNC-controlled multi-head synchronous winding equipment, the use of servo motors and linear motors to drive, combined with the tensioning mechanism, the precise tension and uniform winding of copper wires are achieved, solving the problem of uneven tension of copper wires under the limitations of mechanical structures, and improving the winding quality and production efficiency of the coil.
Patent Information
- Application Number
- CN202510501257.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-07-22
AI Technical Summary
During the existing multi-head synchronous winding process, due to the limitations of the mechanical structure, it is difficult to accurately control the coordination between each copper wire, resulting in uneven tension between the copper wires, affecting the winding quality of the coil.
The multi-head synchronous winding device based on CNC control is adopted. The installation shaft is driven by the servo motor, and the linear motor drives the conductor frame to slide. Combined with the tensioning mechanism and driving components, the precise tension and uniform winding of the copper wire are achieved. The tension block and torsion spring are used to adjust the tension adaptively to ensure the uniformity of tension between the copper wires.
Effective tensioning and precise control of copper wire during multi-head synchronous winding process is achieved, the coil winding accuracy and consistency is improved, the wire breakage and looseness are reduced, and the productivity is improved.
Smart Images
Figure CN120356776A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of winding equipment, and particularly to a multi-head synchronous winding equipment based on CNC control and its winding method. Background Art
[0002] As an important part of electronic components, inductance coils play a key role in modern electronic devices. With the rapid development of electronic technology, higher requirements are put forward for the production efficiency and quality of inductance coils. Especially, the high-precision synchronous winding of multiple copper wires on a cylindrical magnetic core has become one of the core technologies in the field of inductance coil manufacturing. Efficient winding equipment can not only significantly improve production efficiency, but also ensure the quality consistency of coils, thus meeting the market demand for high-performance electronic devices.
[0003] In the prior art, in order to achieve the synchronous winding of multiple copper wires on a cylindrical magnetic core, usually multiple sets of wire feeding mechanisms are used, and a stepping motor or a servo motor is used to drive the magnetic core to rotate to achieve multi-head synchronous winding. However, in the existing multi-head synchronous winding method, due to the limitation of the mechanical structure, it is difficult to precisely control the coordination between the copper wires, resulting in uneven tension between the copper wires, which in turn affects the winding quality of the coil. Summary of the Invention
[0004] Aiming at the problems existing in the prior art, the present application provides a multi-head synchronous winding equipment based on CNC control and its winding method.
[0005] In a first aspect, a multi-head synchronous winding equipment based on CNC control provided by the present application adopts the following technical solutions: A multi-head synchronous winding equipment based on CNC control includes a frame and a wire feeding frame. An installation shaft is rotatably arranged on the frame, and a servo motor for driving the installation shaft to rotate is arranged on the frame. A fixing structure for fixing the magnetic core is arranged on the installation shaft. A plurality of wire feeding rollers are rotatably arranged on the wire feeding frame, and copper wires are wound around each of the wire feeding rollers. A driving component for driving each of the wire feeding rollers to rotate is arranged on the wire feeding frame; A wire guiding frame is slidably arranged on the frame along the length direction of the installation shaft. A linear motor for driving the wire guiding frame to slide is arranged on the frame. A plurality of wire guiding sleeves are arranged on the wire guiding frame. The wire guiding sleeves correspond to the wire feeding rollers one by one and are used for the copper wires on the corresponding wire feeding rollers to pass through. A tensioning mechanism for tensioning each copper wire is arranged on the wire guiding frame.
[0006] Optionally, the fixing structure includes a connecting end and an elastic abutting member. The connecting end is fixedly arranged at the end of the installation shaft and is adapted to the magnetic core. The elastic abutting member is arranged on the side wall of the connecting end and is used for abutting against the inner wall of the magnetic core.
[0007] Optionally, the elastic abutting member includes an elastic steel sheet. A plurality of accommodation grooves are formed in the side wall of the connection end head. Each of the accommodation grooves is arranged along the circumferential direction of the connection end head. The elastic steel sheet is arranged in each accommodation groove, and an arc-shaped protrusion is arranged in the middle of the elastic steel sheet.
[0008] Optionally, the tensioning mechanism includes a tensioning frame, a tensioning block, a torsion spring and a stepping motor. The tensioning frame is rotatably arranged on the wire guiding frame. The stepping motor is used to drive the tensioning frame to rotate. The tensioning block is rotatably arranged on the tensioning frame. The torsion spring is sleeved on the rotating shaft of the tensioning block, and both ends of the torsion spring are fixedly connected to the tensioning frame and the tensioning block respectively. A plurality of wire channels are arranged on the tensioning block, and the wire channels correspond to the wire sleeves one by one.
[0009] Optionally, an installation groove communicating with each of the wire channels is formed in the tensioning block. An installation block is arranged in the installation groove. The installation block is fixed on the tensioning block by bolts. A plurality of wire pressing blocks are arranged on the installation block. The wire pressing blocks correspond to the wire channels one by one, and the wire pressing blocks are arranged in the corresponding wire channels. Elastic connecting pieces for connecting each wire pressing block are respectively arranged on the installation block.
[0010] Optionally, the elastic connecting piece includes an elastic connecting plate. The elastic connecting plate is arranged in a "U" shape. One end of the elastic connecting plate is fixedly connected to the installation block, and the other end is fixedly connected to the corresponding wire pressing block.
[0011] Optionally, a tensioning wheel is rotatably arranged on the wire pressing block, and a wheel groove is arranged along the circumferential direction of the side wall of the tensioning wheel.
[0012] Optionally, the driving assembly includes a driving shaft, a motor, a driving gear and a driven gear. The driving shaft is rotatably arranged on the wire pay-off frame, and the rotating shafts of all the wire pay-off rollers are parallel to the axial direction of the driving shaft. The motor is used to drive the driving shaft to rotate. A plurality of driving gears are arranged and are all coaxially and fixedly connected to the driving shaft. The driving gears correspond to the wire pay-off rollers one by one. A driven gear is coaxially and fixedly arranged on each wire pay-off roller, and the driving gear meshes with the driven gear of the corresponding wire pay-off roller.
[0013] Optionally, a plurality of brackets are rotatably arranged on the wire pay-off frame. The rotating shafts of the brackets are parallel to the axial direction of the driving shaft. The brackets correspond to the wire pay-off rollers one by one. A rotating shaft is rotatably arranged on each bracket. The rotating shaft on the same bracket is coaxially and fixedly connected to the driven gear. The wire pay-off roller is sleeved and fixed on the rotating shaft of the corresponding bracket and is detachably connected to the rotating shaft. Elastic members for driving each bracket to deflect towards the direction close to the driving shaft are respectively arranged on the wire pay-off frame.
[0014] In a second aspect, the present application provides a winding method for a multi-head synchronous winding device based on CNC control, adopting the following technical solutions: A winding method for a multi-head synchronous winding device based on CNC control includes the following steps: S1. Fix the magnetic core on the fixing structure of the mounting shaft; S2. Wind 1-2 turns of insulating tape around the magnetic core; S3. Initially wind the copper wires on each wire pay-off reel around the magnetic core respectively, and fix the ends of the copper wires at the connection port terminals of the magnetic core; S4. Tighten each copper wire by using a tensioning mechanism; S5. Drive the mounting shaft to rotate according to a preset program by a servo motor, and drive each wire pay-off reel to rotate synchronously and pay off wires by a driving component. Meanwhile, drive the wire guide frame to reciprocate along the length direction of the mounting shaft by a linear motor, and cooperate with the guiding of each wire sleeve for the copper wires to wind each copper wire evenly around the magnetic core to complete multi-head synchronous winding; S6. After winding, cut each copper wire, and fix the hanging ends of each copper wire at the other connection port terminals of the magnetic core; S7. Wind 3-4 more turns of insulating tape outside the wound coil to protect the coil by encapsulation.
[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application realizes effective tensioning and precise control of copper wires during multi-head synchronous winding. Specifically, the magnetic core is fixed on the mounting shaft, the copper wires on each wire pay-off reel are initially wound around the magnetic core respectively, and the ends of the copper wires are fixed at the connection port terminals of the magnetic core; the tensioning mechanism is used to tighten each copper wire to ensure that each copper wire is in a tensioned state; then, the mounting shaft is driven to rotate by a servo motor, and each wire pay-off reel is driven to rotate synchronously and pay off wires by a driving component. Meanwhile, the wire guide frame is driven to reciprocate along the length direction of the mounting shaft by a linear motor, and cooperate with the guiding of each wire sleeve for the copper wires to wind each copper wire evenly around the magnetic core, avoiding the overlap or looseness of copper wires, improving the winding accuracy and consistency of the coil. In addition, the setting of the tensioning mechanism enables the copper wires to adaptively adjust the tension size during winding, reducing the occurrence of wire breakage and slack phenomena, thereby improving the overall production yield.
[0016] 2. The tensioning mechanism of the present application can effectively control the tension of multiple strands of copper wires. Specifically, the tensioning frame is driven to rotate by a stepper motor to adjust the overall tension force of each copper wire; at the same time, the tensioning block is connected to the tensioning frame by a torsion spring. When the tension of the copper wire changes, the torsion spring can provide a stable reaction force to the tensioning block to make the tensioning block adaptively adjust the angle to ensure the uniformity of the copper wire tension.
[0017] 3. When fixing each copper wire to the wiring port of the magnetic core, there are differences in the tension of each copper wire. As a result, when the tensioning frame and the tensioning block adjust the overall tension of each copper wire, there will also be differences in the tension of each copper wire. By arranging a wire pressing block in each wire channel and connecting the wire pressing blocks through elastic connectors, when the tensioning frame and the tensioning block adjust the overall tension of each copper wire, each copper wire abuts against the wire pressing block in the corresponding wire channel and forms a certain pressure on the wire pressing block. At this time, the wire pressing block automatically adjusts its position according to the tension of the corresponding copper wire, and under the elastic force of the elastic connector, generates a certain reaction force on the copper wire, ensuring that the tension of each copper wire remains relatively balanced, and further improving the winding accuracy and consistency of the coil.
[0018] 4. In this application, by arranging a plurality of rotatable brackets on the wire pay-off rack and respectively installing each wire pay-off roller on the corresponding bracket, each wire pay-off roller can be independently adjusted in position, and the wire pay-off roller is detachably connected to the rotating shaft. When the copper wire on one of the wire pay-off rollers is used up, the wire pay-off roller can be quickly replaced separately, improving the processing efficiency. In addition, the elastic members on the wire pay-off rack drive the brackets to deflect towards the driving shaft, ensuring effective meshing between the driving gear and the driven gear, and enabling stable power transmission between the driving shaft and the rotating shaft. Brief Description of the Drawings
[0019] Figure 1 is the overall structural schematic diagram of the embodiment of this application; Figure 2 is the front view of the embodiment of this application; Figure 3 is the structural schematic diagram for expressing the mounting shaft of the embodiment of this application; Figure 4 is the structural schematic diagram for expressing the wire pay-off rack of the embodiment of this application; Figure 5 is the structural schematic diagram for expressing the bracket of the embodiment of this application; Figure 6 is the structural schematic diagram for expressing the wire guide rack of the embodiment of this application; Figure 7 is the structural sectional view for expressing the tensioning block of the embodiment of this application.
[0020] Description of reference numerals: 1, frame; 11, servo motor; 12, linear motor; 2, wire pay-off stand; 21, wire pay-off roller; 22, drive shaft; 23, motor; 24, driving gear; 25, driven gear; 26, bracket; 261, rotating shaft; 262, stud; 263, limit nut; 27, elastic member; 3, CNC control system; 4, mounting shaft; 41, connecting end; 411, accommodating groove; 42, elastic steel sheet; 5, wire guide frame; 51, wire sleeve; 52, tensioning frame; 53, tensioning block; 531, wire channel; 54, torsion spring; 55, stepper motor; 56, mounting block; 561, wire pressing block; 562, elastic connecting plate; 563, tensioning wheel. Detailed implementation manners
[0021] The following will combine with the attached Figure 1 - attached Figure 7 figures to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the protection scope of the present invention.
[0022] The inventors of the present application found that in the existing multi-head synchronous winding method, during the multi-head synchronous winding process, due to the limitation of the mechanical structure, it is difficult to precisely control the coordination between the copper wires, resulting in uneven tension between the copper wires, and further affecting the winding quality of the coil. For this reason, the present application discloses a multi-head synchronous winding device based on CNC control and its winding method, mainly adopting the following solutions: The embodiments of the present application disclose a multi-head synchronous winding device based on CNC control. Refer to Figure 1 、 2 , including a frame 1, a wire pay-off stand 2 and a CNC control system 3. A mounting shaft 4 is rotatably arranged on the frame 1. The mounting shaft 4 is horizontally arranged. A servo motor 11 is arranged on the frame 1 for driving the mounting shaft 4 to rotate. A plurality of wire pay-off rollers 21 are rotatably arranged on the wire pay-off stand 2. Copper wires are wound around each wire pay-off roller 21. A driving component for driving each wire pay-off roller 21 to rotate is arranged on the wire pay-off stand 2. The CNC control system 3 is electrically connected to the servo motor 11 and the driving component respectively.
[0023] Refer to Figure 2 、 3 , a fixing structure for fixing the magnetic core is arranged on the mounting shaft 4; specifically, the fixing structure includes a connecting end 41 and an elastic abutting member. The connecting end 41 is fixedly arranged at the end of the mounting shaft 4. The magnetic core is sleeved on the connecting end 41. The connecting end 41 is adapted to the magnetic core to ensure the precise positioning of the magnetic core.
[0024] Refer to Figure 3, the elastic abutting member is an elastic steel sheet 42. A plurality of receiving grooves 411 are formed in the side wall of the connecting end 41. The receiving grooves 411 are arranged along the circumferential direction of the connecting end 41. An elastic steel sheet 42 is arranged in each receiving groove 411. An arc-shaped protrusion is arranged in the middle of the elastic steel sheet 42. The arc-shaped protrusion design of the elastic steel sheet 42 enables it to better abut against the inner wall of the magnetic core and provide a reliable radial supporting force for the magnetic core, thereby preventing the magnetic core from loosening or shifting during the winding process and ensuring the stability and accuracy of the winding. In addition, the elastic steel sheet 42 can be replaced with other elastic materials, such as rubber.
[0025] Refer to Figure 4 , specifically, the driving assembly includes a driving shaft 22, a motor 23, a transmission gear 24, and a driven gear 25. The driving shaft 22 is rotatably arranged on the wire pay-off frame 2, and the axial direction of the driving shaft 22 is parallel to the axial direction of the mounting shaft 4. The motor 23 is installed on the wire pay-off frame 2 and is used to drive the driving shaft 22 to rotate, and the CNV control system is electrically connected to the motor 23. A plurality of brackets 26 are rotatably arranged on the wire pay-off frame 2, and the rotation axis of the bracket 26 is parallel to the axial direction of the driving shaft 22. The bracket 26 deflects in the direction of approaching or departing from the driving shaft 22. The bracket 26 corresponds to the wire pay-off roller 21 one by one. A rotating shaft 261 is rotatably arranged on each bracket 26. The axial direction of the rotating shaft 261 is parallel to the axial direction of the driving shaft 22. The wire pay-off roller 21 is sleeved and fixed on the rotating shaft 261 of the corresponding bracket 26; Refer to Figure 4 , 5 , a plurality of transmission gears 24 are provided and are all coaxially and fixedly connected to the driving shaft 22. The transmission gears 24 correspond to the brackets 26 one by one. A driven gear 25 is coaxially and fixedly arranged on the rotating shaft 261 of each bracket 26. The transmission gear 24 meshes with the driven gear 25 on the corresponding bracket 26. The motor 23 drives the driving shaft 22 to rotate. Since the transmission gear 24 is coaxially and fixedly connected to the driving shaft 22 and the transmission gear 24 meshes with the driven gear 25 on the corresponding bracket 26, the power is stably transmitted to each wire pay-off roller 21, ensuring that each wire pay-off roller 21 rotates synchronously and releases the copper wire.
[0026] Refer to Figure 4 , elastic members 27 for driving each bracket 26 to deflect in the direction of approaching the driving shaft 22 are respectively arranged on the wire pay-off frame 2; specifically, the elastic members 27 include tension springs. A plurality of tension springs are provided and correspond to the brackets 26 one by one. One end of the tension spring is fixedly connected to the wire pay-off frame 2, and the other end is fixedly connected to the corresponding bracket 26. The bracket 26 is driven to deflect in the direction of approaching the driving shaft 22 by the tension spring, ensuring that the transmission gear 24 and the driven gear 25 maintain effective meshing, thereby realizing the stable transmission of power and further improving the reliability of the winding process.
[0027] Refer to Figure 4 , 5, To facilitate the replacement of the wire pay-off roller 21, the wire pay-off roller 21 is detachably connected to the rotating shaft 261. Specifically, the rotating shaft 261 is adapted to the wire pay-off roller 21, and a stud 262 is provided at the end of the rotating shaft 261, and a limit nut 263 is threadedly connected to the stud 262. By providing a plurality of rotatable brackets 26 on the wire pay-off rack 2 and respectively installing each wire pay-off roller 21 on the corresponding bracket 26, each wire pay-off roller 21 can be independently adjusted in position, and the wire pay-off roller 21 is detachably connected to the rotating shaft 261. When the copper wire on one of the wire pay-off rollers 21 is used up, the wire pay-off roller 21 can be quickly replaced individually, improving the processing efficiency.
[0028] Refer to Figure 2 , 6 , a wire guide frame 5 is slidably provided on the frame 1 along the length direction of the installation shaft 4. A linear motor 12 is installed on the frame 1 for driving the wire guide frame 5 to slide. The CNC control system 3 is electrically connected to the linear motor 12. A plurality of wire guide sleeves 51 are provided on the wire guide frame 5. The wire guide sleeves 51 correspond to the wire pay-off rollers 21 one by one, and the copper wire on the wire pay-off roller 21 passes through the corresponding wire guide sleeve 51. By driving the wire guide frame 5 to reciprocate along the length direction of the installation shaft 4 by the linear motor 12 and cooperating with the guiding of each wire guide sleeve 51 for the copper wire, each copper wire is evenly wound around the magnetic core, avoiding the overlap or looseness between the copper wires and improving the winding accuracy and consistency of the coil.
[0029] Refer to Figure 6 , a tensioning mechanism for tensioning each copper wire is provided on the wire guide frame 5; specifically, the tensioning mechanism includes a tensioning frame 52, a tensioning block 53, a torsion spring 54 and a stepping motor 55. The tensioning frame 52 is rotatably provided on the wire guide frame 5, and the rotation axis of the tensioning frame 52 is parallel to the axial direction of the installation shaft 4. The stepping motor 55 is installed on the wire guide frame 5 and is electrically connected to the CNC control system 3 for controlling the rotation of the tensioning frame 52. The tensioning block 53 is rotatably provided on the tensioning frame 52, and the rotation axis of the tensioning block 53 is parallel to the axial direction of the installation shaft 4. The torsion spring 54 is sleeved on the rotation axis of the tensioning block 53, and both ends of the torsion spring 54 are fixedly connected to the tensioning frame 52 and the tensioning block 53 respectively. A plurality of wire channels 531 are provided on the tensioning block 53, and the wire channels 531 correspond to the wire guide sleeves 51 one by one. By driving the tensioning frame 52 to rotate by the stepping motor 55, the overall tensioning force of each copper wire is adjusted; at the same time, the tensioning block 53 is connected to the tensioning frame 52 through the torsion spring 54. When the tension of the copper wire changes, the torsion spring 54 can provide a stable reaction force to the tensioning block 53, enabling the tensioning block 53 to adaptively adjust the angle to ensure the uniformity of the copper wire tension.
[0030] Refer to Figure 6 , 7, since there are differences in the tension levels of the copper wires when they are fixed to the wiring ports of the magnetic core, when the tensioning frame 52 and the tensioning block 53 adjust the overall tension force on each copper wire, there will also be differences in the tension force among the copper wires. For this reason, an installation groove communicating with each wire channel 531 is formed on the tensioning block 53. An installation block 56 is arranged in the installation groove. The installation block 56 is fixed to the tensioning block 53 by bolts. A plurality of wire pressing blocks 561 are arranged on the installation block 56. The wire pressing blocks 561 correspond to the wire channels 531 one by one, and the wire pressing blocks 561 are arranged in the corresponding wire channels 531. Elastic connecting members for connecting the wire pressing blocks 561 are respectively arranged on the installation block 56. Specifically, the elastic connecting member can adopt an elastic connecting plate 562. The elastic connecting plate 562 is made of elastic steel. The elastic connecting plate 562 is arranged in a "U" shape. One end of the elastic connecting plate 562 is fixedly connected to the installation block 56, and the other end is fixedly connected to the corresponding wire pressing block 561. In addition, the elastic connecting member can also adopt a spring.
[0031] By arranging wire pressing blocks 561 in each wire channel 531 and connecting the wire pressing blocks 561 through the elastic connecting plate 562, when the tensioning frame 52 and the tensioning block 53 adjust the overall tension force on each copper wire, each copper wire abuts against the wire pressing block 561 in the corresponding wire channel 531 and forms a certain pressure on the wire pressing block 561. At this time, the wire pressing block 561 automatically adjusts its position according to the tension force of the corresponding copper wire, and under the elastic force of the elastic connecting plate 562, a certain reaction force is generated on the copper wire, ensuring that the tension force among the copper wires remains relatively balanced, and further improving the winding accuracy and consistency of the coil.
[0032] Refer to Figure 7 , a tensioning wheel 563 is rotatably arranged on the wire pressing block 561. A wheel groove is arranged on the side wall of the tensioning wheel 563 along the circumferential direction of the tensioning wheel 563. The arrangement of the tensioning wheel 563 can effectively reduce the frictional resistance of the copper wire in the wire channel 531, avoid the wear or breakage of the copper wire caused by friction, and thus improve the stability of the wire winding process.
[0033] The implementation principle of a multi-head synchronous winding device based on CNC control in an embodiment of the present application is as follows: Fix the magnetic core on the mounting shaft 4, initially wind the copper wires on each wire pay-off reel 21 onto the magnetic core respectively, and fix the ends of the copper wires at the terminal of the connection port of the magnetic core; Use the tensioning mechanism to tension each copper wire to ensure that each copper wire is in a tensioned state; Then, drive the mounting shaft 4 to rotate by the servo motor 11, and drive each wire pay-off reel 21 to rotate synchronously and pay off the wire through the drive assembly. At the same time, drive the wire guide frame 5 to reciprocate along the length direction of the mounting shaft 4 by the linear motor 12. With the guidance of each wire guide sleeve 51 for the copper wire, wind each copper wire evenly onto the magnetic core, avoiding the overlap or looseness between copper wires, and improving the winding accuracy and consistency of the coil. In addition, the setting of the tensioning mechanism enables the copper wire to adaptively adjust the tension during the winding process, reducing the occurrence of wire breakage and slack phenomena, thereby improving the overall production yield.
[0034] An embodiment of the present application also discloses a winding method for a multi-head synchronous winding device based on CNC control, including the following steps: S1. Fix the magnetic core on the fixing structure of the mounting shaft 4; S2. Wind the insulating tape around the magnetic core for 1 - 2 turns; S3. Initially wind the copper wires on each wire pay-off reel 21 onto the magnetic core respectively, and fix the ends of the copper wires at the terminal of the connection port of the magnetic core; S4. Use the tensioning mechanism to tension each copper wire; S5. Drive the mounting shaft 4 to rotate according to a preset program by the servo motor 11, and drive each wire pay-off reel 21 to rotate synchronously and pay off the wire through the drive assembly. At the same time, drive the wire guide frame 5 to reciprocate along the length direction of the mounting shaft 4 by the linear motor 12. With the guidance of each wire guide sleeve 51 for the copper wire, wind each copper wire evenly onto the magnetic core to complete multi-head synchronous winding; S6. After winding, cut each copper wire, and fix the hanging ends of each copper wire at the other terminal of the connection port of the magnetic core; S7. Wind 3 - 4 more turns of insulating tape outside the wound coil to protect the coil by encapsulation.
[0035] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A multi-head synchronous winding device based on CNC control, characterized in that: It includes a frame (1) and a wire pay-off frame (2). An installation shaft (4) is rotatably arranged on the frame (1). A servo motor (11) for driving the installation shaft (4) to rotate is arranged on the frame (1). A fixing structure for fixing the magnetic core is arranged on the installation shaft (4). A plurality of wire pay-off rollers (21) are rotatably arranged on the wire pay-off frame (2). Copper wires are wound around each of the wire pay-off rollers (21). A driving component for driving each of the wire pay-off rollers (21) to rotate is arranged on the wire pay-off frame (2). A wire guiding frame (5) is slidably arranged on the frame (1) along the length direction of the installation shaft (4). A linear motor (12) for driving the wire guiding frame (5) to slide is arranged on the frame (1). A plurality of wire guiding sleeves (51) are arranged on the wire guiding frame (5). The wire guiding sleeves (51) correspond to the wire pay-off rollers (21) one by one and are used for allowing the copper wires on the corresponding wire pay-off rollers (21) to pass through. A tensioning mechanism for tensioning each copper wire is arranged on the wire guiding frame (5).
2. The multi-head synchronous winding device based on CNC control according to claim 1, wherein: The fixing structure includes a connecting end (41) and an elastic abutting member. The connecting end (41) is fixedly arranged at the end of the installation shaft (4) and is adapted to the magnetic core. The elastic abutting member is arranged on the side wall of the connecting end (41) and is used for abutting against the inner wall of the magnetic core.
3. The multi-head synchronous winding device based on CNC control according to claim 2, characterized in that: The elastic abutting member includes an elastic steel sheet (42). A plurality of accommodating grooves (411) are formed in the side wall of the connecting end (41). Each of the accommodating grooves (411) is arranged along the circumferential direction of the connecting end (41). The elastic steel sheet (42) is arranged in each of the accommodating grooves (411). An arc-shaped protrusion is arranged in the middle of the elastic steel sheet (42).
4. A multi-head synchronous winding device based on CNC control according to claim 1, characterized in that: The tensioning mechanism includes a tensioning frame (52), a tensioning block (53), a torsion spring (54) and a stepping motor (55). The tensioning frame (52) is rotatably arranged on the wire guiding frame (5). The stepping motor (55) is used for driving the tensioning frame (52) to rotate. The tensioning block (53) is rotatably arranged on the tensioning frame (52). The torsion spring (54) is sleeved on the rotating shaft of the tensioning block (53), and both ends of the torsion spring (54) are fixedly connected to the tensioning frame (52) and the tensioning block (53) respectively. A plurality of wire channels (531) are arranged on the tensioning block (53). The wire channels (531) correspond to the wire guiding sleeves (51) one by one.
5. The multi-head synchronous winding device based on CNC control according to claim 4, characterized in that: An installation groove communicating with each of the wire channels (531) is formed in the tensioning block (53). An installation block (56) is arranged in the installation groove. The installation block (56) is fixed to the tensioning block (53) by bolts. A plurality of wire pressing blocks (561) are arranged on the installation block (56). The wire pressing blocks (561) correspond to the wire channels (531) one by one, and the wire pressing blocks (561) are arranged in the corresponding wire channels (531). Elastic connecting members for connecting each of the wire pressing blocks (561) are respectively arranged on the installation block (56).
6. The multi-head synchronous winding device based on CNC control according to claim 5, wherein: The elastic connecting member includes an elastic connecting plate (562), the elastic connecting plate (562) is arranged in a "U" shape, one end of the elastic connecting plate (562) is fixedly connected to the mounting block (56), and the other end is fixedly connected to the corresponding wire pressing block (561).
7. A multi-head synchronous winding device based on CNC control according to claim 5, characterized in that: A tensioning wheel (563) is rotatably arranged on the wire pressing block (561), and a wheel groove is arranged on the side wall of the tensioning wheel (563) along the circumferential direction of the tensioning wheel (563).
8. A multi-head synchronous winding device based on CNC control according to claim 1, characterized in that: The driving assembly includes a driving shaft (22), a motor (23), a transmission gear (24) and a driven gear (25). The driving shaft (22) is rotatably arranged on the wire pay-off rack (2), and the rotating shafts of the wire pay-off rollers (21) are all parallel to the axial direction of the driving shaft (22). The motor (23) is used to drive the driving shaft (22) to rotate. A plurality of transmission gears (24) are arranged and are all fixedly connected to the driving shaft (22) coaxially. The transmission gears (24) correspond to the wire pay-off rollers (21) one by one. A driven gear (25) is fixedly arranged on each wire pay-off roller (21) coaxially. The transmission gear (24) meshes with the driven gear (25) of the corresponding wire pay-off roller (21).
9. The multi-head synchronous winding device based on CNC control according to claim 8, characterized in that: A plurality of brackets (26) are rotatably arranged on the wire pay-off rack (2). The rotating shafts of the brackets (26) are parallel to the axial direction of the driving shaft (22). The brackets (26) correspond to the wire pay-off rollers (21) one by one. A rotating shaft (261) is rotatably arranged on each bracket (26). The rotating shaft (261) on the same bracket (26) is fixedly connected to the driven gear (25) coaxially. The wire pay-off roller (21) is sleeved and fixed on the rotating shaft (261) of the corresponding bracket (26) and is detachably connected to the rotating shaft (261). Elastic members (27) for driving each bracket (26) to deflect towards the direction close to the driving shaft (22) are respectively arranged on the wire pay-off rack (2).
10. A winding method for a multi-head synchronous winding device based on CNC control according to any one of claims 1-9, characterized in that, It includes the following steps: S1. Fix the magnetic core on the fixing structure of the mounting shaft (4); S2. Wind the insulating tape around the magnetic core for 1-2 turns; S3. Initially wind the copper wires on each wire pay-off roller (21) onto the magnetic core respectively, and fix the ends of the copper wires at the wiring port terminals of the magnetic core; S4. Tighten each copper wire by using the tensioning mechanism; S5. Drive the mounting shaft (4) to rotate according to a preset program by the servo motor (11), and drive each wire pay-off roller (21) to rotate synchronously and pay off wire by the driving assembly. At the same time, drive the wire guiding frame (5) to reciprocate along the length direction of the mounting shaft (4) by the linear motor (12), and cooperate with the guiding of each wire guiding sleeve (51) for the copper wire to wind each copper wire evenly onto the magnetic core to complete multi-head synchronous winding; S6. After the winding is completed, cut off each copper wire, and fix the hanging ends of each copper wire at the other wiring port terminals of the magnetic core; S7. Wind 3-4 more turns of insulating tape outside the wound coil to protect the coil by encapsulation.