A damage-resistant winding device for through-hole MOSFET pins

Abstract

This invention relates to the field of wire winding technology, specifically to a damage-preventing wire winding device suitable for through-hole MOSFET pins. The wire winding device includes a frame, with a display and control screen mounted on top of the frame, and a fixing plate and support frame mounted on the side of the frame. Compared to current wire winding devices, this invention incorporates a sensing component. This component stores energy and detects the actual number of winding turns. When the actual number of winding turns exceeds the set number, the sensing component drives a braking component to stop the drive shaft and tooling from rotating. When the actual number of winding turns is less than the set number, the sensing component drives a compensation component to compensate for the insufficient wire winding on the through-hole MOSFET pins. This invention also includes a shaping component. Compared to current methods of straightening wire using pliers or wrenches, this invention prevents scratches or other damage to the surface of the wire during straightening.

Description

Technical Field

[0001] This invention relates to the field of wire winding technology, specifically to a wire winding device with anti-damage function suitable for the pins of through-hole MOS transistors. Background Technology

[0002] MOSFETs are metal-oxide-semiconductor field-effect transistors. Through-hole MOSFETs are widely used in circuits, from low-to-medium voltage to high-voltage, high-power applications, with a significant presence in new energy vehicles, industrial control, home appliances, and consumer electronics—fields where high reliability is required. MOSFETs are electrostatically sensitive devices. They have very high input resistance and very low gate-source capacitance, making them highly susceptible to charging by external electromagnetic fields or static electricity. Furthermore, they are difficult to discharge in environments with strong static electricity, easily leading to electrostatic breakdown. Protective measures should be taken during storage, transportation, and handling to prevent electrostatic damage. A convenient method is to short-circuit the gate and source (GS) together or short-circuit the gate and source (GDS) together.

[0003] Current processing methods typically involve manual winding, where all GDS (Glass Threads) are wound together. This method is flexible and can wind various specifications, but it is inefficient and produces inconsistent quality. While custom-made lead winding equipment can be used for a single size, this equipment is only suitable for that size and is expensive. Furthermore, current lead winding equipment usually uses motors with braking functions, but after prolonged use, the motor's braking capability sometimes fails. This means that after the winding work is completed, the motor shaft continues to rotate due to inertia, resulting in an actual number of winding turns exceeding the set number, leading to product defects. Additionally, if a power outage or machine stoppage occurs during operation, the actual number of winding turns is often less than the set number because the winding work is not yet finished. This often requires manual rework, further reducing efficiency. Moreover, if cylinders or similar devices are used to hold the product in such situations, the product becomes difficult to remove after the work is completed because the cylinders are no longer powered to reset. Summary of the Invention

[0004] The purpose of this invention is to provide a damage-resistant winding device for through-hole MOS transistor pins, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a damage-resistant winding device for through-hole MOSFET pins, the winding device comprising a frame, a display and control screen disposed on the top of the frame, a fixed plate and a support frame disposed on the side of the frame, a drive shaft and a tooling frame disposed sequentially on the end of the fixed plate away from the frame, a first bracket disposed on the end of the support frame near the frame, a second bracket disposed on the end of the support frame away from the frame, an anti-wear pad disposed on the end of the first bracket away from the support frame, a protective seat disposed on the anti-wear pad, a placement seat disposed on the end of the second bracket away from the support frame, a metal wire coil disposed on the placement seat, and a drive motor disposed inside the frame, the drive motor driving the drive shaft and the tooling frame to rotate.

[0006] The frame serves as the fixed base for this invention. During operation, the metal wire coil is placed on the placement seat. Since the pin diameters and widths of through-hole MOSFET devices vary, the position of the placement seat can be coarsely adjusted using bolts and the second bracket to facilitate subsequent winding. Additionally, the position of the anti-wear pad can be coarsely adjusted using bolts and the first bracket, and the position of the metal wire can be finely adjusted using the anti-wear pad to make the winding position more suitable. At the same time, the protective seat set on the anti-wear pad has a shaping and straightening function to ensure the quality of winding. The drive motor inside the frame can drive the drive shaft to rotate, which in turn drives the tooling frame to rotate. The tooling frame mounts the device, causing the device to rotate, which in turn drives the metal wire to be wound onto the pins of the through-hole MOSFET device. Finally, the speed, number of winding turns, program storage and recall, etc. can be set through the display control screen.

[0007] Furthermore, the fixed disk is equipped with a sensing component, the drive shaft is equipped with a braking component at one end near the fixed disk, and the drive shaft is equipped with a compensation component at one end near the tooling frame. The shaft of the drive motor is connected to the drive shaft through the braking component, and the drive shaft is connected to the tooling frame through the compensation component. The sensing component has the functions of energy storage and detecting the number of winding turns, and the braking component and compensation component are controlled by the sensing component.

[0008] This invention includes a sensing component that stores energy and detects the actual number of winding turns. Additionally, the drive motor in this invention is a motor with braking function. When prolonged operation causes the drive motor's braking capability to fail, even after the winding work is completed, the drive motor shaft will continue to rotate due to inertia, resulting in an actual number of winding turns exceeding the set number. The sensing component can then drive the braking component, causing the drive shaft to separate from the drive motor shaft and stop rotating promptly. When a power outage or machine stoppage occurs during operation, the actual number of winding turns will often be less than the set number because the winding work is not yet complete. In this case, the sensing component can drive a compensation component, which rotates the fixture to compensate for the insufficient metal wire winding on the pins of the through-hole MOSFET device.

[0009] Furthermore, the sensing component includes a synchronization disk and a permanent magnet. The synchronization disk is fixedly installed at one end of the drive shaft that extends into the fixed disk. The permanent magnet is disposed on the inner wall of the fixed disk. The synchronization disk has an H-shaped cross-section. An induction coil, an energy storage device, and a detector are disposed at the middle position of the synchronization disk.

[0010] With the above technical solution, when the drive motor shaft rotates, the synchronous disk will rotate synchronously. At this time, the induction coil will cut the magnetic field lines to generate an induced current. This electrical energy can be stored through the energy storage device. Since the rotation of the induction coil relative to the permanent magnet is periodic, the induced current generated by the induction coil should also be periodic. Therefore, by detecting the change period of the induced current by the detector, the number of turns of the metal wire wound on the pin of the through-hole MOSFET can be determined, so as to facilitate the operation of the induction component to drive the compensation component or the braking component.

[0011] Furthermore, the braking assembly includes a first sensing groove, a second sensing groove, and a braking groove. The braking groove is disposed at one end of the fixed disc near the drive shaft. Both the first and second sensing grooves are disposed inside the drive shaft. A linkage seat and a first electromagnet are disposed inside the first sensing groove. The end of the linkage seat near the first electromagnet is magnetic. A braking frame is disposed inside the second sensing groove. The first and second sensing grooves are connected and contain a first transmission fluid. The drive shaft is connected to the shaft of the drive motor via the linkage seat. One end of the braking frame is located in the second sensing groove, and the other end of the braking frame is located in the braking groove.

[0012] Through the above technical solution, when the actual number of winding turns is greater than the set number of winding turns, the energy storage device will supply a set of current to the first electromagnet, so that the first electromagnet generates a set of magnetic fields that attract the linkage seat. At this time, the linkage seat will move away from the drive motor shaft to achieve the purpose of separating the drive shaft from the drive motor shaft. Finally, when the linkage seat moves, it will squeeze the first transmission fluid in the first sensing groove into the second sensing groove. Under the action of hydraulic pressure, the brake frame will move towards the brake groove. In this invention, the end of the brake frame near the brake groove has friction texture. The brake frame and the brake groove serve to brake the drive shaft and the tooling frame, ensuring that the number of metal coils wound on the through-hole MOS tube pins is constant.

[0013] Furthermore, the compensation component includes a compensation motor and a connecting plate. The compensation motor is disposed inside the end of the transmission shaft near the tooling frame. The rotating shaft of the compensation motor is connected to the tooling frame via a flat key. One end of the connecting plate is fixedly connected to the tooling frame, and the other end of the connecting plate is slidably connected to the transmission shaft via a first slider and a first groove.

[0014] With the above technical solution, when the actual number of winding turns is less than the set number of winding turns, the energy storage device will send a set of current to the compensation motor. The compensation motor can drive the connecting plate and the tooling frame to continue rotating to compensate for the metal wire that is not wound on the pin of the through-hole MOSFET device. This avoids the need for manual rewinding after the work is completed, thereby improving work efficiency.

[0015] Furthermore, the tooling frame has a clamping groove at the end away from the drive shaft. Two sets of clamping seats are located inside the clamping groove. A clamping plate is located at the end of each clamping seat near the central axis of the tooling frame. A second electromagnet is located inside each clamping seat. A telescopic groove, a clamping spring rod, and a positioning groove are provided between the second electromagnet and the clamping plate. The clamping spring rod passes through the telescopic groove and the positioning groove. One end of the clamping spring rod is fixedly connected to the clamping plate, and the other end is equipped with a magnetic block. Two sets of positioning plates are located at the end of the clamping spring rod within the positioning groove. Both the positioning plates and the positioning groove have a figure-eight structure. A piezoelectric sheet is located at the end of the positioning plate away from the inner wall of the positioning groove. The piezoelectric sheet is connected to the positioning plate via a positioning spring.

[0016] Because through-hole MOSFETs come in various sizes and specifications, this invention incorporates a second electromagnet and a clamping plate to meet the needs of various through-hole device sizes. When the through-hole MOSFET is too small, the second electromagnet generates a magnetic field that repels a magnetic block. At this time, the magnetic block and the clamping spring rod will push the clamping plate towards the central axis of the fixture, thus ensuring that the through-hole MOSFET is clamped. This invention also includes a positioning plate and a positioning slot. When the clamping spring rod moves, the two positioning plates move synchronously. Since both the positioning plate and the positioning slot are "V" shaped, the two positioning plates will gradually close together as they move towards the central axis of the fixture. The greater the closing range, the tighter the positioning spring is compressed, and the greater the force on the piezoelectric sheet. Finally, the range of movement of the clamping plate can be determined by detecting the change in the electrical signal on the piezoelectric sheet, thus avoiding excessive movement of the clamping plate and damage to the through-hole MOSFET.

[0017] Furthermore, the clamping seat is slidably installed in the clamping groove via the second slider and the second slide groove. The clamping seat is also provided with a reset groove and a reset frame. One end of the reset frame is located in the reset groove, and the other end of the reset frame extends out of the clamping seat. The reset groove is connected to the end of the telescopic groove away from the second electromagnet. The reset groove and the telescopic groove are both provided with a second transmission fluid.

[0018] In this invention, the clamping seat has two reset methods. The first is the reset during normal operation: after the winding work is completed, the second electromagnet generates a magnetic field that attracts the magnetic block. Under the action of the magnetic force, the magnetic block and the clamping spring rod will overcome the friction between the positioning plate and the inner wall of the positioning groove, and move towards the second electromagnet until they return to their initial position. The second is the reset under abnormal operating conditions: when a power outage or machine shutdown occurs during operation, the second electromagnet will stop working simultaneously. Since there is no magnetic force, the magnetic block and the clamping spring rod will be unable to overcome the friction between the positioning plate and the inner wall of the positioning groove. Friction is used to maintain the clamped state of the through-hole MOSFET. This state ensures that the through-hole MOSFET does not fall off when the compensation motor drives the fixture. When the compensation winding is finished, the operator only needs to push the clamping seat to move it closer to the drive shaft. The second transmission fluid in the reset groove is then squeezed into the telescopic groove by the reset frame. Under the action of hydraulic pressure, the magnetic block and the clamping spring rod will overcome the friction between the positioning plate and the inner wall of the positioning groove and move towards the second electromagnet until they return to the initial position, so that the operator can easily take out the wound through-hole MOSFET.

[0019] Furthermore, the protective base is provided with two sets of through holes. One set of through holes is provided with a rubber sleeve inside, and the other set of through holes is provided with two sets of shaping components inside and two sets of shaping motors outside. The shaping components include a drive shaft, shaping blocks and a turntable. Several sets of shaping blocks are provided, and the several sets of shaping blocks are evenly arranged on the outside of the turntable. The shaping motor drives the turntable and shaping blocks to rotate through the drive shaft.

[0020] Because the quality of metal wire coils fluctuates, it is difficult to ensure that the quality of the metal wire coils is completely qualified, especially since some recycled metal wire coils are often crooked. Therefore, this invention has two sets of shaping components in the protective base. During operation, the metal wire is first passed through the two sets of shaping components, and then through the through hole with a rubber sleeve. The shaping motor enables the drive shaft and the turntable to rotate synchronously. When the metal wire moves, several sets of shaping blocks on the turntable will alternately squeeze the metal wire, thereby straightening the bent metal wire. Compared with the current method of straightening metal wires with pliers or wrenches, this invention can straighten the metal wire without causing scratches or other damage to the surface of the metal wire, thus ensuring the stable and qualified quality of the product.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: Compared with the current winding device, the present invention is equipped with a sensing component. The sensing component stores energy and detects the actual number of winding turns. When the actual number of winding turns is greater than the set number of winding turns, the sensing component can drive the braking component to work. At this time, the transmission shaft will separate from the shaft of the transmission motor and stop rotating in time. When the actual number of winding turns is less than the set number of winding turns, the sensing component can drive the compensation component to work. The compensation component rotates the fixture to compensate for the insufficient metal wire wound on the pins of the through-hole MOSFET device. The present invention is also equipped with a second electromagnet and a clamping plate. The second electromagnet can drive the magnetic block and the clamping spring rod to move, thereby ensuring that the clamping plate can clamp through-hole MOSFETs of different specifications. When the clamping spring rod moves, the two sets of positioning plates will gradually close, wherein the closing amplitude is... The greater the degree, the tighter the positioning spring is compressed, and the greater the force on the piezoelectric sheet. Finally, the range of movement of the clamping plate can be determined by detecting the change in the electrical signal on the piezoelectric sheet, so as to avoid damaging the through-hole MOSFET due to excessive movement of the clamping plate. In addition, compared with using a cylinder to clamp the through-hole MOSFET, this invention can freely remove the through-hole MOSFET when the power is off, and ensures that the through-hole MOSFET does not fall off when the compensation motor drives the tooling frame. Finally, this invention also includes a shaping component. When the metal wire moves, several sets of shaping blocks on the turntable will alternately squeeze the metal wire, thereby straightening the bent metal wire. Compared with the current method of straightening metal wire with pliers or wrenches, this invention can straighten the metal wire without causing scratches or other damage to the surface of the metal wire, thus ensuring the stable and qualified quality of the product. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the fixed disk of the present invention;

[0025] Figure 3 This is the invention Figure 2 Schematic diagram of the AA section structure;

[0026] Figure 4 This is a schematic diagram of the internal structure of the clamping seat of the present invention;

[0027] Figure 5 This is the invention Figure 4 Schematic diagram of section B in the middle;

[0028] Figure 6 This is a schematic diagram of the working structure of the clamping plate of the present invention;

[0029] Figure 7 This is a schematic diagram of the compensation component structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the internal structure of the protective base of the present invention;

[0031] Figure 9 This is a schematic diagram of the standardized component structure of the present invention;

[0032] Figure 10 This is the invention Figure 9 Schematic diagram of the CC section.

[0033] In the diagram: 1-Frame, 11-Drive motor, 2-First support, 21-Protective seat, 211-Through hole, 212-Shaping motor, 213-Shaping assembly, 2131-Drive shaft, 2132-Shaping block, 2133-Turntable, 22-Anti-wear pad, 3-Second support, 31-Placement seat, 4-Support frame, 5-Display control panel, 6-Fixing plate, 61-Brake groove, 62-Synchronization plate, 621-Induction coil, 622-Energy accumulator, 623-Detector. 63-Permanent magnet, 7-Drive shaft, 71-First induction slot, 711-Linkage seat, 712-First electromagnet, 72-Second induction slot, 721-Brake frame, 73-Compensation motor, 8-Tooling frame, 81-Clamping slot, 82-Clamping seat, 821-Clamping plate, 822-Reset frame, 823-Reset slot, 824-Second electromagnet, 825-Telescopic slot, 826-Clamping spring rod, 8261-Magnetic block, 8262-Positioning plate, 827-Positioning slot. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, a damage-resistant winding device for through-hole MOSFET pins is disclosed. The winding device includes a frame 1, a display and control screen 5 on the top of the frame 1, a fixing plate 6 and a support frame 4 on the side of the frame 1, a drive shaft 7 and a tooling frame 8 arranged sequentially on the end of the fixing plate 6 away from the frame 1, a first bracket 2 on the end of the support frame 4 near the frame 1 and a second bracket 3 on the end of the support frame 4 away from the frame 1, both the first bracket 2 and the second bracket 3 are connected to the support frame 4 by bolts, an anti-wear pad 22 on the end of the first bracket 2 away from the support frame 4, a protective seat 21 on the anti-wear pad 22, and a placement seat 31 on the end of the second bracket 3 away from the support frame 4, on which a metal wire coil is placed, and a drive motor 11 is installed inside the frame 1.

[0036] The frame 1 serves as the fixed base for this invention. During operation, the metal wire coil is placed on the placement seat 31. Since the pin diameters and widths of through-hole MOSFET devices vary, the position of the placement seat 31 can be coarsely adjusted using bolts and the second bracket 3 to facilitate subsequent winding. Additionally, the position of the anti-wear pad 22 can be coarsely adjusted using bolts and the first bracket 2. The position of the metal wire can be finely adjusted using the anti-wear pad 22 to make the winding position more suitable. At the same time, the protective seat 21 set on the anti-wear pad 22 has a shaping and straightening function to ensure the quality of winding. The drive motor 11 inside the frame 1 can drive the drive shaft 7 to rotate, thereby driving the tooling frame 8 to rotate. The tooling frame 8 is used to install the device, causing the device to rotate, which in turn drives the metal wire to be wound onto the pins of the through-hole MOSFET device. Finally, the speed, number of winding turns, program storage and recall, etc., can be set through the display control screen 5.

[0037] like Figures 1-4 As shown, a sensing component is installed inside the fixed disk 6, a braking component is installed at one end of the drive shaft 7 near the fixed disk 6, and a compensation component is installed at one end of the drive shaft 7 near the tooling frame 8. The rotating shaft of the drive motor 11 is connected to the drive shaft 7 through the braking component, and the drive shaft 7 is connected to the tooling frame 8 through the compensation component. The operation of the braking component and the compensation component is controlled by the sensing component.

[0038] This invention includes a sensing component that stores energy and detects the actual number of winding turns. Additionally, the drive motor 11 in this invention is a motor with a braking function. When prolonged operation causes the braking capability of the drive motor 11 to fail, even after the winding work is completed, the shaft of the drive motor 11 will continue to rotate due to inertia, resulting in an actual number of winding turns greater than the set number. The sensing component can drive the braking component to operate, at which point the drive shaft 7 will separate from the shaft of the drive motor 11 and stop rotating promptly. When a power outage or machine stoppage occurs during operation, because the winding work is not yet completed, the actual number of winding turns will often be less than the set number. In this case, the sensing component can drive the compensation component to operate, rotating the fixture 8 to compensate for the insufficient metal wire winding on the pins of the through-hole MOS transistor.

[0039] like Figure 3 As shown, the sensing component includes a synchronization disk 62 and a permanent magnet 63. The synchronization disk 62 is fixedly installed at one end of the drive shaft 7 that extends into the fixed disk 6. The permanent magnet 63 is disposed on the inner wall of the fixed disk 6. The cross-section of the synchronization disk 62 is H-shaped. An induction coil 621, an energy storage device 622, and a detector 623 are disposed at the middle position of the synchronization disk 62.

[0040] With the above technical solution, when the drive shaft 11 drives the drive shaft 7 to rotate, the synchronous disk 62 will rotate synchronously. At this time, the induction coil 621 will cut the magnetic field lines to generate an induced current. This energy can be stored by the energy storage device 622. Since the rotation of the induction coil 621 relative to the permanent magnet 63 is periodic, the induced current generated by the induction coil 621 should also be periodic. Therefore, by detecting the change period of the induced current by the detector 623, the number of turns of the metal wire wound on the pin of the through-hole MOS transistor can be determined, so as to facilitate the operation of the induction component driving the compensation component or the braking component.

[0041] like Figure 2 As shown, the braking assembly includes a first sensing groove 71, a second sensing groove 72, and a braking groove 61. The braking groove 61 is located at one end of the fixed disk 6 near the drive shaft 7. The first sensing groove 71 and the second sensing groove 72 are both located inside the drive shaft 7. The first sensing groove 71 is provided with a linkage seat 711 and a first electromagnet 712. The end of the linkage seat 711 near the first electromagnet 712 is magnetic. The second sensing groove 72 is provided with a brake frame 721. The first sensing groove 71 and the second sensing groove 72 are connected and are provided with a first transmission fluid. The drive shaft 7 is connected to the shaft of the drive motor 11 through the linkage seat 711. One end of the brake frame 721 is located in the second sensing groove 72, and the other end of the brake frame 721 is located in the braking groove 61.

[0042] Through the above technical solution, when the actual number of winding turns is greater than the set number of winding turns, the energy storage device 622 will supply a set of current to the first electromagnet 712, so that the first electromagnet 712 generates a set of magnetic fields that attract the linkage seat 711. At this time, the linkage seat 711 will move away from the shaft of the transmission motor 11 to achieve the purpose of separating the transmission shaft 7 from the shaft of the transmission motor 11. Finally, when the linkage seat 711 moves, it will squeeze the first transmission fluid in the first sensing groove 71 into the second sensing groove 72. Under the action of hydraulic pressure, the brake frame 721 will move towards the brake groove 61. In this invention, the end of the brake frame 721 near the brake groove 61 has friction texture. The brake frame 721 and the brake groove 61 serve to brake the transmission shaft 7 and the tooling frame 8, ensuring that the number of metal coils wound on the through-hole MOS tube pins is constant.

[0043] like Figure 7 As shown, the compensation assembly includes a compensation motor 73 and a connecting plate. The compensation motor 73 is located inside the end of the transmission shaft 7 near the tooling frame 8. The rotating shaft of the compensation motor 73 is connected to the tooling frame 8 via a flat key. One end of the connecting plate is fixedly connected to the tooling frame 8, and the other end of the connecting plate is slidably connected to the transmission shaft 7 via a first slider and a first groove.

[0044] Through the above technical solution, when the actual number of winding turns is less than the set number of winding turns, the energy storage device 622 will send a set of current to the compensation motor 73. The compensation motor 73 can drive the connecting plate and the tooling frame 8 to continue rotating to compensate for the metal wire that is not wound on the pin of the through-hole MOS transistor device, thus avoiding the need for manual rewinding after the work is completed, thereby improving work efficiency.

[0045] like Figures 4-6 As shown, a clamping groove 81 is provided at the end of the tooling frame 8 away from the drive shaft 7. Two sets of clamping seats 82 are provided inside the clamping groove 81. A clamping plate 821 is provided at the end of the clamping seat 82 near the central axis of the tooling frame 8. A second electromagnet 824 is provided inside the clamping seat 82. A telescopic groove 825, a clamping spring rod 826, and a positioning groove 827 are provided between the second electromagnet 824 and the clamping plate 821. The clamping spring rod 826 passes through the telescopic groove 825 and the positioning groove 827. 27. One end of the clamping spring rod 826 is fixedly connected to the clamping plate 821. The other end of the clamping spring rod 826 is provided with a magnetic block 8261. The end of the clamping spring rod 826 located in the positioning groove 827 is provided with two sets of positioning plates 8262. Both the positioning plate 8262 and the positioning groove 827 are "eight" shaped structures. The end of the positioning plate 8262 away from the inner wall of the positioning groove 827 is provided with a piezoelectric piece. The piezoelectric piece and the positioning plate 8262 are connected by a positioning spring.

[0046] Because through-hole MOSFETs come in various sizes and specifications, this invention includes a second electromagnet 824 and a clamping plate 821 to meet the needs of various through-hole device sizes. When the through-hole MOSFET size is too small, the second electromagnet 824 can generate a magnetic field repelling the magnetic block 8261. At this time, the magnetic block 8261 and the clamping spring rod 826 will push against the clamping plate 821 and move towards the central axis of the fixture 8, thereby ensuring that the through-hole MOSFET can be clamped. This invention also includes a positioning plate 8262 and a positioning groove 827. When clamping... When the spring rod 826 moves, the two sets of positioning plates 8262 will move synchronously. Since both the positioning plate 8262 and the positioning groove 827 are "V" shaped structures, the two sets of positioning plates 8262 will gradually close together as they move toward the central axis of the tooling fixture 8. The greater the closing range, the tighter the positioning spring is compressed, and the greater the force on the piezoelectric sheet. Finally, the range of movement of the clamping plate 821 can be determined by detecting the change in the electrical signal on the piezoelectric sheet, so as to avoid the clamping plate 821 moving too much and damaging the through-hole MOSFET.

[0047] like Figures 4-6As shown, the clamping seat 82 is slidably installed in the clamping groove 81 via the second slider and the second slide groove. The clamping seat 82 is also provided with a reset groove 823 and a reset frame 822. One end of the reset frame 822 is located in the reset groove 823, and the other end of the reset frame 822 extends out of the clamping seat 82. The reset groove 823 is connected to the end of the telescopic groove 825 away from the second electromagnet 824. The reset groove 823 and the telescopic groove 825 are both provided with a second transmission fluid.

[0048] In this invention, the clamping seat 82 has two reset methods. The first is the reset during normal operation: after the winding work is completed, the second electromagnet 824 generates a magnetic field that attracts the magnetic block 8261. Under the action of the magnetic force, the magnetic block 8261 and the clamping spring rod 826 will overcome the friction between the positioning plate 8262 and the inner wall of the positioning groove 827, and move towards the second electromagnet 824 until they return to their initial positions. The second is the reset under abnormal operation: when a power outage or machine shutdown occurs during operation, the second electromagnet 824 will stop working simultaneously. Since there is no magnetic force, the magnetic block 8261 and the clamping spring rod 826 will be unable to overcome the friction between the positioning plate 8262 and the positioning groove 827. The friction between the inner walls maintains the clamped state of the through-hole MOSFET. This state ensures that the through-hole MOSFET does not fall off when the compensation motor 73 drives the tooling frame 8. When the compensation winding is finished, the operator only needs to push the clamping seat 82 to move it closer to the drive shaft 7. The second transmission fluid in the reset groove 823 is then squeezed into the telescopic groove 825 by the reset frame 822. Under the action of hydraulic pressure, the magnetic block 8261 and the clamping spring rod 826 will overcome the friction between the positioning plate 8262 and the inner wall of the positioning groove 827 and move towards the second electromagnet 824 until they return to the initial position, so that the operator can easily take out the wound through-hole MOSFET.

[0049] like Figure 1 , Figures 8-10 As shown, the protective base 21 is provided with two sets of through holes 211. One set of through holes 211 is provided with a rubber sleeve inside, and the other set of through holes 211 is provided with two sets of shaping components 213 inside and two sets of shaping motors 212 outside. The shaping component 213 includes a drive shaft 2131, shaping blocks 2132 and a turntable 2133. Several sets of shaping blocks 2132 are provided, and the several sets of shaping blocks 2132 are evenly arranged on the outside of the turntable 2133. The shaping motors 212 drive the turntable 2133 and the shaping blocks 2132 to rotate through the drive shaft 2131.

[0050] Because the quality of metal wire coils fluctuates, it is difficult to ensure that the quality of the metal wire coils is completely qualified, especially since some recycled metal wire coils are often crooked. Therefore, this invention provides two sets of shaping components 213 in the protective base 21. During operation, the metal wire is first passed through the two sets of shaping components 213, and then through the through hole 211 with a rubber sleeve. The shaping motor 212 enables the drive shaft 2131 and the turntable 2133 to rotate synchronously. When the metal wire moves, several sets of shaping blocks 2132 on the turntable 2133 will alternately squeeze the metal wire, thereby straightening the bent metal wire. Compared with the current method of straightening metal wires with pliers or wrenches, this invention can straighten the metal wire without causing scratches or other damage to the surface of the metal wire, thus ensuring the stable and qualified quality of the product.

[0051] The working principle of this invention is as follows: Before operation, the metal wire coil is placed on the placement seat 31. The position of the placement seat 31 is roughly adjusted using bolts and the second bracket 3, and the position of the anti-wear pad 22 is roughly adjusted using bolts and the first bracket 2. Then, the metal wire is first passed through two sets of shaping components 213, and then through the through hole 211 with a rubber sleeve. Next, the through-hole MOS transistor is inserted between two sets of clamping seats 82. The second electromagnet 824 drives the magnetic block 8261 and the clamping spring rod 826 to move. At this time, the clamping plate 821 will move towards the central axis of the tooling frame 8 to ensure that the through-hole MOS transistor can be clamped. Finally, the metal wire with the end protruding from the rubber sleeve is placed on the pin of the through-hole MOS transistor and the drive motor 11 is turned on. The drive shaft 7 and the tooling frame 8 are rotated to wind the metal wire onto the pins of the through-hole MOSFET. During the winding process, the metal wire moves between two sets of shaping components 213. The two sets of shaping components 213 can straighten the bent metal wire. The sensing component stores energy and detects the actual number of winding turns. When the actual number of winding turns is greater than the set number of winding turns, the sensing component can drive the braking component to work. At this time, the drive shaft 7 will separate from the shaft of the drive motor 11 and stop rotating in time. When the actual number of winding turns is often less than the set number of winding turns, the sensing component can drive the compensation component to work. The compensation component rotates the tooling frame 8 to compensate for the metal wire that is not wound on the pins of the through-hole MOSFET device.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for winding the pins of a through-hole MOSFET with anti-damage function, characterized in that: The winding device comprises a rack (1), a display control screen (5) is arranged above the rack (1), a fixing disc (6) and a support frame (4) are arranged at the side end of the rack (1), a transmission shaft (7) and a tool frame (8) are sequentially arranged at the end of the fixing disc (6) away from the rack (1), a first support (2) is arranged at the end of the support frame (4) close to the rack (1), a second support (3) is arranged at the end of the support frame (4) away from the rack (1), an anti-abrasion pad (22) is arranged at the end of the first support (2) away from the support frame (4), a protection seat (21) is arranged on the anti-abrasion pad (22), a placing seat (31) is arranged at the end of the second support (3) away from the support frame (4), a metal wire coil is placed on the placing seat (31), and a transmission motor (11) is arranged in the rack (1), the transmission shaft (7) and the tool frame (8) are driven to rotate by the transmission motor (11); An induction assembly is arranged in the fixing disc (6), a brake assembly is arranged at the end of the transmission shaft (7) close to the fixing disc (6), a compensation assembly is arranged at the end of the transmission shaft (7) close to the tool frame (8), the rotating shaft of the transmission motor (11) is connected with the transmission shaft (7) through the brake assembly, the transmission shaft (7) is connected with the tool frame (8) through the compensation assembly, the induction assembly has the functions of energy storage and detection of winding turns, and the brake assembly and the compensation assembly are controlled to work through the induction assembly; The brake assembly comprises a first induction groove (71), a second induction groove (72) and a brake groove (61), the brake groove (61) is arranged at the end of the fixing disc (6) close to the transmission shaft (7), the first induction groove (71) and the second induction groove (72) are both arranged in the transmission shaft (7), the first induction groove (71) is internally provided with a linkage seat (711) and a first electromagnet (712), the end of the linkage seat (711) close to the first electromagnet (712) has magnetism, the second induction groove (72) is internally provided with a brake frame (721), the first induction groove (71) and the second induction groove (72) are connected and internally provided with first transmission liquid, the transmission shaft (7) is in transmission connection with the rotating shaft of the transmission motor (11) through the linkage seat (711), one end of the brake frame (721) is located in the second induction groove (72), and the other end of the brake frame (721) is located in the brake groove (61).

2. The anti-injury functional direct-insertion MOS tube pin winding device according to claim 1, characterized in that: The induction assembly comprises a synchronous disc (62) and a permanent magnet (63), the synchronous disc (62) is fixedly installed at the end of the transmission shaft (7) extending into the fixing disc (6), the permanent magnet (63) is arranged on the inner wall of the fixing disc (6), the cross section of the synchronous disc (62) is H-shaped structure, and the synchronous disc (62) is provided with an induction coil (621), an energy accumulator (622) and a detector (623) at the middle position.

3. The anti-injury functional direct-insertion MOS tube pin winding device according to claim 1, characterized in that: The compensation assembly comprises a compensation motor (73) and a connecting disc, the compensation motor (73) is arranged inside an end of the transmission shaft (7) close to the tool holder (8), a rotating shaft of the compensation motor (73) is in driving connection with the tool holder (8) through a key, and one end of the connecting disc is fixedly connected with the tool holder (8), and the other end of the connecting disc is in sliding connection with the transmission shaft (7) through a first sliding block and a first sliding groove.

4. The anti-injury functional direct-insertion MOS tube pin winding device according to claim 3, characterized in that: An end of the tool holder (8) away from the transmission shaft (7) is provided with a clamping groove (81), two groups of clamping seats (82) are arranged inside the clamping groove (81), a clamping plate (821) is arranged at an end of the clamping seat (82) close to a central shaft of the tool holder (8), a second electromagnet (824) is arranged inside the clamping seat (82), a telescopic groove (825), a clamping spring rod (826) and a positioning groove (827) are arranged between the second electromagnet (824) and the clamping plate (821), the clamping spring rod (826) penetrates through the telescopic groove (825) and the positioning groove (827), one end of the clamping spring rod (826) is fixedly connected with the clamping plate (821), the other end of the clamping spring rod (826) is provided with a magnetic block (8261), two groups of positioning plates (8262) are arranged at an end of the clamping spring rod (826) in the positioning groove (827), the positioning plate (8262) and the positioning groove (827) are both in an "eight" type structure, a piezoelectric sheet is arranged at an end of the positioning plate (8262) away from an inner wall of the positioning groove (827), and the piezoelectric sheet is connected with the positioning plate (8262) through a positioning spring.

5. The anti-injury functional direct-insertion MOS transistor pin winding device according to claim 4, characterized in that: The clamping seat (82) is slidably arranged in the clamping groove (81) through a second sliding block and a second sliding groove, a reset groove (823) and a reset frame (822) are further arranged inside the clamping seat (82), one end of the reset frame (822) is located in the reset groove (823), the other end of the reset frame (822) extends out of the clamping seat (822), the reset groove (823) is in communication with an end of the telescopic groove (825) away from the second electromagnet (824), and second transmission liquid is arranged in the reset groove (823) and the telescopic groove (825).

6. The anti-injury functional direct-insertion MOS transistor pin winding device according to claim 5, characterized in that: Two groups of through holes (211) are arranged on the protection seat (21), a rubber sleeve is arranged inside one group of the through holes (211), two groups of shaping assemblies (213) are arranged inside the other group of the through holes (211), and two groups of shaping motors (212) are arranged outside the other group of the through holes (211), the shaping assembly (213) comprises a driving shaft (2131), a shaping block (2132) and a rotating disc (2133), a plurality of groups of the shaping block (2132) are arranged outside the rotating disc (2133), and the shaping motor (212) drives the rotating disc (2133) and the shaping block (2132) to rotate through the driving shaft (2131).

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