Improved common mode inductor winding machine

Abstract

The utility model discloses an improved common mode choke winding machine. The improved common mode choke winding machine comprises a machine frame, a first rotary clamping unit, a second rotary clamping unit, a winding mechanism, a wire hooking mechanism and a material grabbing mechanical arm, the first rotary clamping unit comprises a first thread feeding and trimming mechanism and a first rotary clamping mechanism; the second rotary clamping unit comprises a second thread feeding and cutting mechanism, a second rotary clamping mechanism and a lower thread blocking plate; the second rotary clamping mechanism comprises a positioning plate, two clamping pneumatic claws, a clamping driving device installed on the positioning plate and used for driving the two clamping pneumatic claws to be opened and closed, a clamping transmission assembly connected between the two clamping pneumatic claws and the clamping driving device, and a rotating assembly connected to the positioning plate. The lower wire blocking plate is connected to the bottom of the first clamping pneumatic claw. According to the utility model, the first wire rod wound on the magnetic ring can be protected in the winding process, so that the first wire rod can be prevented from being scratched by the second wire rod in the winding process, namely, the yield of products can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of winding machines, in particular to an improved common-mode inductor winding machine. Background Art

[0002] Common-mode inductors, also known as common-mode chokes, are commonly used in computer switching power supplies to filter common-mode electromagnetic interference signals. They are also used in motherboards and graphics cards, where they act as EMI filters, suppressing the outward radiation of electromagnetic waves generated by high-speed signal lines.

[0003] Authorization announcement number CN209561207U discloses a winding machine, which specifically discloses a mounting platform, on which an X-axis and a Y-axis perpendicular to each other on a horizontal plane, and a Z-axis on a vertical plane are provided. It is characterized in that it also includes a magnetic ring feeding device for providing magnetic rings, a first magnetic ring device and a second magnetic ring device for clamping and rotating the magnetic rings, and a blanking device arranged on the mounting platform and arranged in sequence along the X-axis; it also includes a grasping device for transferring the magnetic rings and a first wire device for providing wire input for the first magnetic ring device and a second wire device for providing wire input for the second magnetic ring device; it also includes a winding device arranged between the first magnetic ring device and the second magnetic ring device to move the wire to the top or bottom of the magnetic ring and a hooking device for passing the wire through the center of the magnetic ring. The first magnetic ring device and the second magnetic ring device each include a clamping and rotating device. The clamping and rotating devices of the first magnetic ring device and the clamping and rotating devices of the second magnetic ring device are arranged side by side along the X-axis and are arranged in mirror symmetry on the mounting platform. The clamping and rotating device includes a clamping assembly arranged on the mounting platform for clamping the magnetic ring and a rotating assembly driving the clamping assembly to rotate on the mounting platform. The clamping assembly includes a pair of second magnetic ring clamping blocks for horizontally clamping the magnetic ring. The rotating assembly includes an arcuate guide rail fixed to the mounting platform, a horizontal mounting plate arranged on the arcuate guide rail and rotatable in the direction in which the arcuate guide rail is set, and a first driving assembly arranged at the bottom of the mounting platform for driving the horizontal mounting plate to rotate on the arcuate guide rail. The clamping assembly is fixed to the horizontal mounting plate of the rotating assembly.

[0004] However, there is still room for improvement in the above-mentioned winding machine. For example, in the above-mentioned structure, when the second magnetic ring device cooperates with the winding device and the wire hooking device to wind the second side of the magnetic ring, since a wire has already been wound around the first side of the magnetic ring, the end of the second wire can easily scrape the first wire already wound around the magnetic ring when the second wire is pulled downward by the wire hooking device through the center hole of the magnetic ring. This can easily cause the first wound wire to be scratched, which in turn can damage the product and cause poor performance of the common-mode inductor. Therefore, this situation can lead to a decrease in product yield. Utility Model Content

[0005] In response to the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an improved common-mode inductor winding machine, which can protect the first wire wound on the magnetic ring during the winding process, thereby preventing it from being scratched by the second wire during winding. That is, this design can improve the yield rate of the product.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] An improved common-mode inductor winding machine comprises a frame and a first rotary clamping unit, a second rotary clamping unit, a winding mechanism, a wire hooking mechanism and a material grabbing manipulator respectively mounted on the frame; the first rotary clamping unit comprises a first wire feeding and cutting mechanism and a first rotary clamping mechanism which cooperate with each other; the first rotary clamping unit can be used to cooperate with the winding mechanism for winding and the wire hooking mechanism for hooking on the first side of the magnetic ring to complete the winding of the first wire; the second rotary clamping unit comprises a second wire feeding and cutting mechanism, a second rotary clamping mechanism and a lower wire baffle which cooperate with each other; the second rotary clamping unit can be used to cooperate with the winding mechanism for winding and the wire hooking mechanism for hooking on the second side of the magnetic ring to complete the winding of the second wire; The second rotating clamping mechanism includes a positioning plate, two clamping air claws for clamping the magnetic ring, a clamping drive device installed on the positioning plate and used to drive the two clamping air claws to open and close, a clamping transmission assembly connected between the two clamping air claws and the clamping drive device, and a rotating assembly connected to the positioning plate and used to drive the magnetic ring to rotate; the lower wire baffle is connected to the bottom of the first clamping air claw; the lower wire baffle can be used to limit the second wire on the magnetic ring when the wire hooking mechanism hooks the second wire to prevent the second wire from scratching the first wire that has been wound on the magnetic ring during the process of being pulled downward; the second wire feeding and cutting mechanism can be used for supplying and cutting wires; the grabbing robot can be used for loading, transferring and unloading magnetic rings.

[0008] Furthermore, the second rotary clamping mechanism also includes a wire blocking assembly; the wire blocking assembly includes an upper wire blocking plate located above the clamping claw, a wire blocking front and rear cylinder connected to the frame and used to drive the upper wire blocking plate to move forward and backward, and a wire blocking upper and lower cylinder connected to the output shafts of the wire blocking front and rear cylinders and used to drive the wire blocking plate to move up and down; the upper wire blocking plate is connected to the output shafts of the wire blocking upper and lower cylinders. Through the above arrangement, when the second wire is wound on the second side of the magnetic ring, the upper wire blocking plate can be used to press the first wound wire to prevent the wire hooking mechanism from hooking the wire wound on the magnetic ring.

[0009] Furthermore, the second rotary clamping mechanism also includes a wire pressing block, a baffle, a wire pressing cylinder and a hinge block; a limit groove extending forward and backward is provided on the top surface of the second clamping claw; the wire pressing block is installed in the limit groove so as to be movable forward and backward, and the baffle is also installed in the limit groove and is located in front of the wire pressing block; the wire pressing cylinder is installed on the second clamping claw; the two ends of the hinge block are respectively hinged to the rear end of the wire pressing block and the output shaft of the wire pressing cylinder. Through the above arrangement, the wire pressing cylinder can be used to drive the wire pressing block to move closer to or away from the baffle, so that the cooperation between the wire pressing block and the baffle can be used to achieve the function of pressing the wire end, so as to avoid the wire end from swinging and affecting the quality of the winding.

[0010] Furthermore, an arc-shaped slot is provided on the outer end surface of the lower wire baffle plate, which runs through the upper and lower parts and faces the winding mechanism, so as to better limit the position of the wire.

[0011] Furthermore, the clamping drive device is a cylinder.

[0012] Furthermore, the rotating assembly includes an arc-shaped slide rail and a rotating motor; an inner arc-shaped slot and an outer arc-shaped slot are respectively provided on the inner and outer walls of the arc-shaped slide rail; an inner pulley and an outer pulley are respectively provided in the inner and outer arc-shaped slots, and both the inner pulley and the outer pulley are mounted on the bottom of the positioning plate; the rotating motor is mounted on the top surface of the positioning plate, and its output shaft is connected to a gear; an arc-shaped rack is also provided on the outer side of the arc-shaped slide rail, meshing with the gear and connected to the frame. Through the above arrangement, the rotating motor can be used to drive the positioning plate to rotate.

[0013] Furthermore, an arc-shaped groove is also provided on the outer wall of the arc-shaped rack, and a roller is installed at the bottom of the positioning plate to match the arc-shaped groove. The above arrangement can enhance the stability of the positioning plate when it moves.

[0014] Furthermore, the winding mechanism includes a front and rear winding motor mounted on the frame, a front and rear winding screw rod mounted on the output shaft of the front and rear winding motor and extending forward and backward, a front and rear winding slide plate mounted on the front and rear winding screw rod movably mounted forward and backward, an upper and lower winding screw rod mounted on the front and rear winding slide plate extending up and down, an upper and lower winding motor mounted on the front and rear winding slide plate and connected to the upper and lower winding screw rod, a upper and lower winding slide plate mounted on the upper and lower winding screw rod movably mounted up and down, a left and right winding motor mounted on the upper and lower winding slide plate, and two winding wheels respectively connected to the left and right winding motors and driven by the left and right winding motors to move left and right; the two winding wheels can be used to simultaneously guide the ends of the two wires above the two magnetic rings for the wire hooking mechanism to hook them at the same time. Through the above arrangement, the two winding wheels can be used to simultaneously perform winding processing on the magnetic rings on the two rotating clamping units.

[0015] Furthermore, the thread-catching mechanism includes a thread-catching motor mounted on the frame, a thread-catching transmission assembly connected to the output shaft of the thread-catching motor, and two hooks mounted at the output end of the thread-catching transmission assembly for vertical movement. The hooks are configured to penetrate the magnetic ring and pull the wire downward. This arrangement enables the two hooks to simultaneously process the magnetic rings on two rotating clamping units.

[0016] Furthermore, the first thread-feeding and cutting mechanism and the first rotary clamping mechanism have the same structures as the second thread-feeding and cutting mechanism and the second rotary clamping mechanism, respectively.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a lower wire baffle in the second rotating clamping unit, thereby protecting the first wire material wound on the magnetic ring during the winding process, preventing it from being scratched by the second wire material during the winding process, that is, the lower wire baffle can be used to prevent the first wire material wound on the magnetic ring from being easily damaged, thereby improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0020] Figure 2 yes Figure 1 A magnified view of point A in the figure;

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the overall structure of the utility model Figure 3 ;

[0023] Figure 5 This is a schematic diagram of the local structure of the utility model Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the local structure of the utility model Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the local structure of the utility model Figure 3 ;

[0026] Figure 8 This is a schematic diagram of the structure of the winding mechanism of the utility model Figure 1 ;

[0027] Figure 9 This is a schematic diagram of the structure of the winding mechanism of the utility model Figure 2 ;

[0028] Figure 10 It is a structural diagram of the line hook mechanism of the utility model.

[0029] Reference numerals

[0030] 1. Frame; 2. First rotary clamping unit; 3. Second rotary clamping unit; 31. Second thread feeding and cutting mechanism; 32. Second rotary clamping mechanism; 321. Positioning plate; 322. Clamping claw; 323. Clamping drive device; 324. Clamping transmission assembly; 325. Upper thread blocking plate; 326. Front and rear thread blocking cylinders; 327. Upper and lower thread blocking cylinders; 328. Thread pressing block; 329. Baffle; 330. Thread pressing cylinder; 331. Articulated block; 332. Limiting groove; 333. Arc-shaped slot; 334. Arc-shaped slide rail; 335. Rotating motor; 336. Inner arc shaped chute; 337, outer arc chute; 338, inner pulley; 339, outer pulley; 340, gear; 341, arc rack; 342, arc groove; 343, roller; 344, lower wire baffle; 4, winding mechanism; 41, front and rear motors for winding; 42, front and rear lead screws for winding; 43, front and rear slides for winding; 44, upper and lower lead screws for winding; 45, upper and lower motors for winding; 46, upper and lower slides for winding; 47, left and right motors for winding; 48, winding wheel; 5, wire hooking mechanism; 51, wire hooking motor; 52, wire hooking transmission assembly; 53, hook needle; 6, material grabbing robot. DETAILED DESCRIPTION

[0031] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely illustrative and does not limit the scope of protection of the utility model.

[0032] like Figures 1-10As shown, an improved common-mode inductor winding machine includes a frame 1 and a first rotating clamping unit 2, a second rotating clamping unit 3, a winding mechanism 4, a wire hooking mechanism 5 and a material grabbing robot 6 respectively installed on the frame 1.

[0033] like Figure 1 As shown, the first rotary clamping unit 2 includes a first wire feeding and cutting mechanism (not marked in the figure) and a first rotary clamping mechanism (not marked in the figure); the first rotary clamping unit 2 can be used to cooperate with a winding mechanism 4 for winding and a wire hooking mechanism 5 for hooking on the first side of the magnetic ring to complete the winding of the first wire.

[0034] The second rotary clamping unit 3 includes a second wire feeding and cutting mechanism 31, a second rotary clamping mechanism 32 and a lower wire baffle 344 that cooperate with each other; the second rotary clamping unit 3 can be used to cooperate with the winding mechanism 4 for winding and the wire hooking mechanism 5 for hooking the wire on the second side of the magnetic ring to complete the winding of the second wire.

[0035] Therefore, two magnetic rings can be processed simultaneously using two clamping units.

[0036] like Figure 1-Figure 7 As shown, the second rotary clamping mechanism 32 includes a positioning plate 321, two clamping air grippers 322 for clamping the magnetic ring, a clamping drive device 323 mounted on the positioning plate 321 and used to drive the two clamping air grippers 322 to open and close, a clamping transmission assembly 324 connected between the two clamping air grippers 322 and the clamping drive device 323, and a rotating assembly connected to the positioning plate 321 and used to drive the magnetic ring to rotate. Therefore, the two clamping air grippers 322 can be used to conveniently clamp the magnetic ring, while the rotating assembly can be used to conveniently drive the magnetic ring to rotate.

[0037] like Figure 1-Figure 7 Specifically, the lower wire stopper 344 is connected to the bottom of the first clamping air gripper 322, so that the lower wire stopper 344 can move with the first clamping air gripper 322. The lower wire stopper 344 can be used to limit the position of the second wire on the magnetic ring when the wire hooking mechanism 5 hooks the second wire, so as to prevent the second wire from scratching the first wire wound on the magnetic ring during the downward pulling process.

[0038] The second wire feeding and cutting mechanism 31 can be used for feeding and cutting wires; the material grabbing robot 6 can be used for loading, transferring and unloading the magnetic ring.

[0039] like Figure 1-Figure 7As shown, in this embodiment, an arcuate slot 333 extending vertically and oriented toward the winding mechanism 4 is provided on the outer end surface of the lower wire retaining plate 344. This arcuate slot 333 allows the second wire to be inserted into the second wire, thereby better positioning the wires. This prevents the second wire from scraping against the wound first wire or the magnetic ring during its descent. Specifically, the arcuate slot 333 is located directly below the outer ends of the two gripping air grippers 322.

[0040] like Figure 1-Figure 7 As shown, for the second rotating clamping mechanism 32, it also includes a wire blocking assembly; the wire blocking assembly includes an upper wire blocking plate 325 located above the clamping claw 322, a wire blocking front and rear cylinder 326 connected to the frame 1 and used to drive the upper wire blocking plate 325 to move forward and backward, and a wire blocking upper and lower cylinder 327 connected to the output shaft of the wire blocking front and rear cylinder 326 and used to drive the wire blocking plate to move up and down; the upper wire blocking plate 325 is connected to the output shaft of the wire blocking upper and lower cylinder 327. Therefore, when the second side of the magnetic ring is winding the second wire, the upper wire blocking plate 325 can be used to press the first wire that has been wound, to prevent the wire hooking mechanism 5 from hooking the wire that has been wound on the magnetic ring, that is, to protect the wire. Specifically, when in use, the wire blocking front and rear cylinder 326 and the wire blocking upper and lower cylinder 327 can be used to drive the upper wire blocking plate 325 to move above the magnetic ring.

[0041] like Figure 1-Figure 7 As shown, in addition, the second rotary clamping mechanism 32 also includes a wire pressing block 328, a baffle 329, a wire pressing cylinder 330 and a hinge block 331; a limit groove 332 extending forward and backward is provided on the top surface of the second clamping claw 322; the wire pressing block 328 is installed in the limit groove 332 so as to be movable forward and backward, and the baffle 329 is also installed in the limit groove 332 and is located in front of the wire pressing block 328; the wire pressing cylinder 330 is installed on the second clamping claw 322; the two ends of the hinge block 331 are respectively hinged to the rear end of the wire pressing block 328 and the output shaft of the wire pressing cylinder 330. Through the above arrangement, the wire pressing cylinder 330 can be used to drive the wire pressing block 328 to move closer to or away from the baffle 329, so that the wire pressing block 328 and the baffle 329 can cooperate to achieve the effect of pressing the wire end, so as to avoid the wire end swinging and affecting the quality of the winding.

[0042] It should be noted that the reference Figure 2 The wire pressing block 328 and the baffle 329 are arranged on the clamping air claw 322 away from the winding mechanism 4.

[0043] like Figure 1-Figure 7As shown, in this embodiment, the clamping drive device 323 is a cylinder. In addition, as for the clamping transmission assembly 324, since it is a prior art, it is not described here in detail. Its structure only needs to ensure that the clamping drive device 323 can realize the normal opening and closing of the two clamping claws 322.

[0044] like Figure 1-Figure 7 As shown, in this embodiment, the rotating assembly includes an arc-shaped slide rail 334 and a rotating motor 335; an inner arc-shaped slide groove 336 and an outer arc-shaped slide groove 337 are respectively provided on the inner wall and outer wall of the arc-shaped slide rail 334; an inner pulley 338 and an outer pulley 339 are respectively provided in the inner arc-shaped slide groove 336 and the outer arc-shaped slide groove 337, and the inner pulley 338 and the outer pulley 339 are both installed at the bottom of the positioning plate 321; the rotating motor 335 is installed on the top surface of the positioning plate 321 and its output shaft is connected to the gear 340, and an arc-shaped rack 341 engaged with the gear 340 and connected to the frame 1 is also provided on the outer side of the arc-shaped slide rail 334. Therefore, through the above-mentioned settings, the rotating motor 335 can be used to drive the gear 340 to drive the positioning plate 321 to rotate along the arc-shaped rack 341, and synchronously drive the clamping device 321 and the magnetic ring to rotate; in addition, during the movement of the positioning plate 321, the inner arc-shaped groove 336 and the inner pulley 338 and the outer arc-shaped groove 337 and the outer pulley 339 can be used to enhance the stability of the positioning plate 321 during movement.

[0045] like Figure 1-Figure 7 As shown, in order to further enhance the stability of the positioning plate 321 , an arcuate groove 342 is also provided on the outer wall of the arcuate rack 341 ; a roller 343 matching the arcuate groove 342 is also installed at the bottom of the positioning plate 321 .

[0046] like Figure 8-Figure 9As shown, the winding mechanism 4 includes a front and rear winding motor 41 installed on the frame 1, a front and rear winding screw rod 42 installed on the output shaft of the front and rear winding motor 41 and extending forward and backward, a front and rear winding slide 43 installed on the front and rear winding screw rod 42 movably installed forward and backward, a winding upper and lower winding screw rod 44 installed on the front and rear winding slide 43 extending up and down, a winding upper and lower motor 45 installed on the front and rear winding slide 43 and connected to the winding upper and lower winding screw rod 44, a winding upper and lower slide 46 installed on the winding upper and lower slide 46 movably installed on the winding upper and lower screw rod 44, a winding left and right motor 47 installed on the winding upper and lower slide 46, and two winding wheels 48 respectively connected to the winding left and right motors 47 and driven by the winding left and right motors 47 to move left and right; the two winding wheels 48 can be used to simultaneously guide the ends of the two wires above the two magnetic rings so that they can be hooked simultaneously by the wire hooking mechanism 5. Therefore, the front and rear winding motor 41 can drive the two winding reels 48 to move forward and backward, the upper and lower winding motor 45 can drive the winding reels 48 to move up and down, and the left and right winding motor 47 can drive the winding reels 48 to move left and right. The corresponding motors can simultaneously drive the two winding reels 48 to perform various corresponding actions, thereby simultaneously processing the magnetic rings on the first rotating clamping unit 2 and the second rotating clamping unit 3. Since the structure of the winding mechanism 4 described above belongs to the prior art, it will not be described in detail here.

[0047] like Figure 10 As shown, the wire hooking mechanism 5 includes a wire hooking motor 51 mounted on the frame 1, a wire hooking transmission assembly 52 connected to the output shaft of the wire hooking motor 51, and two hooks 53 mounted at the output end of the wire hooking transmission assembly 52 so as to be movable up and down. The hooks 53 can be used to penetrate the magnetic ring and pull the wire downward. Therefore, the wire hooking motor 51, in conjunction with the wire hooking transmission assembly 52, can be used to drive the two hooks 53 to move up and down synchronously, so as to simultaneously perform wire hooking operations on the magnetic rings on the first rotating clamping unit 2 and the second rotating clamping unit 3. In addition, the above-mentioned wire hooking mechanism 5 is also a prior art, and therefore, it will not be described in detail here.

[0048] The gripping robot 6 is a three-claw robot, i.e., it has three grippers. The first gripper is used to place the magnetic ring onto the first rotating clamping mechanism (i.e., loading the material). The second gripper is used to grab the magnetic ring with the first wire wound around it from the first rotating clamping mechanism and transfer it to the second rotating clamping mechanism 31. The third gripper is used to grab the magnetic ring with the second wire wound around it from the second rotating clamping mechanism 31 and unload it.

[0049] Since the structures of the second thread feeding and cutting mechanism 31 and the material grabbing robot 6 are both existing technologies, they will not be described in detail here.

[0050] Specifically, for the first rotary clamping unit 2, the first wire feeding and cutting mechanism and the first rotary clamping mechanism provided therein have the same structure and function as the second wire feeding and cutting mechanism 31 and the second rotary clamping mechanism 32 respectively. However, since the first rotary clamping unit 2 is used to wind the first wire, it is not necessary to set a lower wire blocking plate 344 and a wire blocking mechanism, etc. in the first rotary clamping unit 2.

[0051] Specifically, when in use, the clamping hand of the material grabbing manipulator 6 is used to deliver the magnetic ring to the first rotary clamping mechanism of the first rotary clamping unit 2, that is, loading the material, and the first wire feeding and cutting mechanism cuts the wire after feeding the wire into place. Under the condition that the first rotary clamping unit 2 cooperates with the winding mechanism 4 and the hooking mechanism 5, the winding of the wire on the first side of the magnetic ring is completed, thereby completing the winding of the first wire;

[0052] Next, the gripping manipulator 6 delivers the magnetic ring with the first wire wound around it to the second rotary clamping unit 3, and the clamping drive device drives the two clamping air claws 322 to clamp the magnetic ring, with the second side of the magnetic ring not wound facing the winding mechanism 4, that is, the magnetic ring is transferred;

[0053] Next, after the second wire feeding and cutting mechanism 31 feeds the wire to the preset position, the wire pressing cylinder 330 drives the wire pressing block 328 to cooperate with the baffle 329 to press the wire, and then the second wire feeding and cutting mechanism 31 cuts the wire;

[0054] Next, the front and rear cylinders 326 drive the upper wire blocking plate 325 forward, and then the upper and lower cylinders 327 drive the upper wire blocking plate 325 downward and press it onto the first wire that has been wound;

[0055] Next, when the hook needle 53 of the hooking mechanism 5 is pulling the second wire downward, the lower wire stopper 344 can be used to block the second wire. Specifically, the lower wire stopper 344 is used to keep the second wire away from the first wire to prevent it from scratching the first wound wire. At the same time, the upper wire stopper 325 also protects the first wound wire.

[0056] Next, the winding mechanism 4 guides the second wire upward to a preset position above the magnetic ring by moving the winding wheel 48 up and down and forward and backward. Then, the winding left and right motors 47 drive the winding wheel 48 to move a certain distance toward the hook needle 53. At the same time, the rotating motor 335 continues to drive the magnetic ring to rotate. Then, the hooking mechanism 5 and the winding mechanism 4 continue to operate until the winding of the wire on the second side of the magnetic ring is completed.

[0057] Next, after the winding is completed, each mechanism is reset;

[0058] Next, the material-grabbing robot 6 sends the magnetic ring with the wire wound around it to the next process.

[0059] To sum up, the utility model sets a lower wire baffle 344 in the second rotating clamping unit 3, so that the first wire that has been wound on the magnetic ring can be protected during the winding process to prevent it from being scratched by the second wire during the winding process. That is, the lower wire baffle 344 is used to prevent the first wire that has been wound from being easily damaged, thereby improving the yield rate of the product.

[0060] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. An improved common mode inductor winding machine, characterized in that: It comprises a frame and a first rotating clamping unit, a second rotating clamping unit, a winding mechanism, a wire hooking mechanism and a material grabbing manipulator respectively installed on the frame; The first rotary clamping unit includes a first wire feeding and cutting mechanism and a first rotary clamping mechanism that cooperate with each other; the first rotary clamping unit can be used to cooperate with the winding mechanism for winding and the wire hooking mechanism for hooking on the first side of the magnetic ring to complete the winding of the first wire; The second rotary clamping unit includes a second thread feeding and cutting mechanism, a second rotary clamping mechanism and a lower wire baffle that cooperate with each other; the second rotary clamping unit can be used to cooperate with the winding mechanism for winding and the wire hooking mechanism for hooking on the second side of the magnetic ring to complete the winding of the second wire; The second rotary clamping mechanism includes a positioning plate, two clamping air grippers for clamping the magnetic ring, a clamping drive device mounted on the positioning plate and used to drive the two clamping air grippers to open and close, a clamping transmission assembly connected between the two clamping air grippers and the clamping drive device, and a rotating assembly connected to the positioning plate and used to drive the magnetic ring to rotate; The lower wire stop plate is connected to the bottom of the first clamping air gripper; the lower wire stop plate can be used to limit the second wire on the magnetic ring when the wire hooking mechanism hooks the second wire, so as to prevent the second wire from scratching the first wire wound on the magnetic ring during the process of being pulled downward; The second wire feeding and cutting mechanism can be used for feeding and cutting wires; the material grabbing robot can be used for loading, transferring and unloading magnetic rings.

2. The improved common mode inductor winding machine according to claim 1, characterized in that: The second rotary clamping mechanism also includes a wire blocking assembly; the wire blocking assembly includes an upper wire blocking plate located above the clamping air claw, a wire blocking front and rear cylinder connected to the frame and used to drive the upper wire blocking plate to move forward and backward, and a wire blocking upper and lower cylinder connected to the output shaft of the wire blocking front and rear cylinders and used to drive the wire blocking plate to move up and down; the upper wire blocking plate is connected to the output shaft of the wire blocking upper and lower cylinders.

3. The improved common mode inductor winding machine according to claim 1, characterized in that: The second rotary clamping mechanism also includes a wire pressing block, a baffle, a wire pressing cylinder and a hinge block; a limit groove extending forward and backward is provided on the top surface of the second clamping claw; the wire pressing block can be installed in the limit groove so as to be movable forward and backward, and the baffle is also installed in the limit groove and is located in front of the wire pressing block; the wire pressing cylinder is installed on the second clamping claw; the two ends of the hinge block are respectively hinged to the rear end of the wire pressing block and the output shaft of the wire pressing cylinder.

4. The improved common mode inductor winding machine according to claim 1, characterized in that: An arc-shaped slot is provided on the outer end surface of the lower wire baffle plate, which passes through the upper and lower parts and faces the winding mechanism.

5. The improved common mode inductor winding machine according to claim 1, characterized in that: The clamping drive device is a cylinder.

6. The improved common mode inductor winding machine according to claim 1, characterized in that: The rotating assembly includes an arc-shaped slide rail and a rotating motor; an inner arc-shaped slide groove and an outer arc-shaped slide groove are respectively provided on the inner wall and outer wall of the arc-shaped slide rail; an inner pulley and an outer pulley are respectively provided in the inner arc-shaped slide groove and the outer arc-shaped slide groove, and the inner pulley and the outer pulley are both installed at the bottom of the positioning plate; the rotating motor is installed on the top surface of the positioning plate and its output shaft is connected to a gear, and an arc-shaped rack meshing with the gear and connected to the frame is also provided on the outside of the arc-shaped slide rail.

7. The improved common mode inductor winding machine according to claim 6, characterized in that: An arc-shaped groove is also provided on the outer wall of the arc-shaped rack; and a roller matched with the arc-shaped groove is also installed on the bottom of the positioning plate.

8. The improved common mode inductor winding machine according to claim 1, characterized in that: The winding mechanism includes a front and rear winding motor mounted on the frame, a front and rear winding lead screw mounted on the output shaft of the front and rear winding motor and extending forward and backward, a front and rear winding slide board mounted on the front and rear winding lead screw movably mounted forward and backward, an upper and lower winding lead screw extending up and down and mounted on the front and rear winding slide board, an upper and lower winding motor mounted on the front and rear winding slide board and transmission connected to the upper and lower winding lead screw, a upper and lower winding slide board mounted on the upper and lower winding lead screw movably mounted up and down, a left and right winding motor mounted on the upper and lower winding slide board, and two winding wheels respectively transmission connected to the left and right winding motors and capable of being driven by the left and right winding motors to move left and right; The two winding wheels can be used to simultaneously guide the ends of two wires above the two magnetic rings so that the wire hooking mechanism can hook them at the same time.

9. The improved common mode inductor winding machine according to claim 1, characterized in that: The wire hooking mechanism includes a wire hooking motor installed on the frame, a wire hooking transmission assembly connected to the output shaft of the wire hooking motor, and two hooks installed at the output end of the wire hooking transmission assembly so as to be movable up and down; the hooks can be used to pass through the magnetic ring and pull the wire downward.

10. The improved common mode inductor winding machine according to claim 1, characterized in that: The first thread-feeding and trimming mechanism and the first rotary clamping mechanism have the same structures as the second thread-feeding and trimming mechanism and the second rotary clamping mechanism, respectively.

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