Inductor depainting tinning machine and tinning method

Abstract

The invention discloses an inductor paint removing and tin plating machine and a tin plating method thereof, and relates to the technical field of spectrum detection, the inductor paint removing and tin plating machine comprises a machine body as well as a feeding mechanism, a paint removing module, a tin plating module, a transferring mechanism and a material receiving mechanism which are arranged in the machine body, the feeding mechanism is used for supplying an inductance coil, the paint removing module is used for carrying out paint removing treatment on a pin of the inductance coil, and the tin plating module is used for carrying out tin plating treatment on the pin. The tin plating module is used for carrying out tin plating treatment on the inductance coil subjected to paint removal, the transferring mechanism is used for transferring the inductance coil subjected to pin paint removal at the paint removal module to the tin plating module and transferring the inductance coil treated by the tin plating module to the material receiving mechanism, and the material receiving mechanism is used for receiving the inductance coil subjected to tin plating treatment. And discharging is completed. By the adoption of the technical scheme, a wave soldering machine is not needed, the occupied area and the purchase cost of equipment are greatly reduced, meanwhile, the energy consumption and the maintenance cost of the equipment are remarkably reduced, and the good market popularization value is achieved.

Description

Technical Field

[0001] This invention relates to the field of inductor production equipment technology, specifically to an inductor paint stripping and tin plating machine and a tin plating method. Background Technology

[0002] In the inductor manufacturing process, lead surface treatment is a crucial step in ensuring the quality of subsequent soldering and the reliability of electrical connections. As the sole bridge connecting the inductor to the circuit board, the solderability and plating quality of the leads directly determine the long-term mechanical strength and electrical stability of the entire electronic component. If the leads are oxidized, contaminated, or have residual varnish, it can easily lead to problems such as poor soldering, cold soldering, or insufficient solder strength, resulting in increased circuit impedance, increased signal transmission loss, and even premature equipment failure. This is especially true in high-reliability fields such as automotive electronics and aerospace, where the uniformity, adhesion, and corrosion resistance of the lead plating are subject to extremely stringent requirements.

[0003] In related technologies, such as CN107705978B, a high-temperature inductor stripping and soldering integrated machine is disclosed, including a frame, a vibratory feeder, a wave soldering machine, a conveying mechanism, a stripper spraying device, a hot air treatment device, a brush stripping device, and a flux spraying device. During operation, the vibratory feeder adjusts the orientation of the inductor coil and conveys it to the conveying mechanism. The conveying mechanism then conveys the inductor coil through the stripper spraying device for stripper treatment. Next, the conveying mechanism conveys the inductor coil through the hot air treatment device for heating treatment. After that, it is conveyed to the brush stripping device for stripping treatment. After stripping, the inductor coil is conveyed by the conveying mechanism to the flux spraying device for flux treatment. Finally, the conveying mechanism sends the inductor coil into the wave soldering machine for soldering treatment.

[0004] However, existing high-temperature inductor decoction and soldering machines rely on wave soldering machines for soldering. Wave soldering machines themselves have complex structures, occupy a large area, and increase equipment procurement costs. At the same time, wave soldering machines are designed for overall PCB board soldering, with large solder bath capacity, high energy consumption, and the need to continuously keep the molten solder in a molten state, making maintenance complex. For processes that only require local tin plating of the leads, there are obvious problems of energy waste and increased costs. Summary of the Invention

[0005] The purpose of this application is to provide an inductor paint stripping and tin plating machine and a tin plating method thereof, which can effectively reduce production costs and reduce energy waste.

[0006] The present invention provides an inductor paint stripping and tin plating machine, the technical solution of which is: an inductor paint stripping and tin plating machine, comprising a machine body and a feeding mechanism, a paint stripping module, a tin plating module, a transfer mechanism and a receiving mechanism disposed within the machine body; The feeding mechanism is used to supply inductor coils; The paint stripping module is located on one side of the feeding mechanism and is used to strip the paint from the pins of the inductor coil. It includes a paint stripping positioning and conveying mechanism, a paint stripping clamping mechanism for clamping and adjusting the posture of the inductor coil, and a laser paint stripping mechanism for stripping the paint from the inductor coil. The paint stripping positioning and conveying mechanism is used to position and convey the inductor coil provided by the feeding mechanism. The paint stripping clamping mechanism is used to clamp the inductor coil positioned by the paint stripping conveying mechanism and can drive the inductor coil to rotate, so that the laser paint stripping mechanism can completely strip the paint from the parts of the inductor coil pins that need to be stripped. The tin plating module is used to tin-plat the inductor coil after the paint has been removed. It includes a tin plating mechanism, which includes a tin plating tank, a tin plating base fixed above the tin plating tank, and a lifting component for driving the tin plating tank and / or the tin plating base to move up and down relative to each other. The tin plating tank contains molten tin. The tin plating base has a tin plating port for positioning the inductor coil. The inductor coil is housed in the tin plating port and its leads extend from the bottom of the tin plating port. The lifting component is used to drive at least one of the tin plating tank and the tin plating base to move up and down so that the paint-removed part of the leads is immersed in the molten tin. The transfer mechanism is located between the paint stripping module, the tin plating module, and the receiving mechanism. It is used to transfer the inductor coils whose pins have been stripped from the paint stripping module to the tin plating module, and to transfer the inductor coils processed by the tin plating module to the receiving mechanism. The receiving mechanism is located on one side of the tin plating module and is used to receive the tin-plated inductor coils to complete the unloading process. Optionally, the paint stripping positioning conveying mechanism includes a positioning seat on a sliding body, a positioning rod fixedly mounted on the positioning seat, and a first positioning cylinder mounted on the positioning seat. The positioning rod is provided with at least one positioning post for positioning an inductor coil. The inductor coil is sleeved on the positioning post and its pins extend from one side of the positioning rod. The first positioning cylinder is used to drive the positioning seat to move, so that after the positioning rod receives the inductor coil provided by the feeding mechanism, it will transport the inductor coil to the paint stripping clamping mechanism for the paint stripping clamping mechanism to clamp. After the lead paint is stripped, the positioning rod can receive the inductor coil clamped by the paint stripping clamping mechanism and transport the inductor coil to the transfer mechanism under the drive of the first positioning cylinder.

[0007] Optionally, the paint stripping positioning and conveying mechanism further includes a positioning gripper disposed on the positioning rod and a second positioning cylinder for driving the positioning gripper to open and close. The positioning gripper is located on one side of the positioning rod, and when the inductor coil is sleeved on the positioning post, the pin of the inductor coil is located inside the clamping end of the positioning gripper.

[0008] Optionally, the paint stripping clamping mechanism includes a clamping frame fixedly mounted on one side of the sliding seat, a clamping lifting seat that can be raised and lowered on the clamping frame, a clamping jaw rotatably mounted on the clamping lifting seat, a first clamping cylinder for driving the clamping lifting seat to rise and fall vertically relative to the clamping frame, a rotary motor for driving the clamping jaw to rotate relative to the clamping lifting seat, and a second clamping cylinder for driving the clamping jaw to open and close to clamp or release the inductor coil.

[0009] Optionally, the laser paint stripping mechanism includes a laser paint stripping frame, a laser fixed on the laser paint stripping frame and located above the paint stripping clamping mechanism, a mounting frame on one side of the laser paint stripping frame, a protective box slidably mounted on the mounting frame, and a paint stripping cylinder mounted on the mounting frame for driving the protective box to move closer to or away from the paint stripping clamping mechanism. The protective box has a side opening on its side wall for the clamping end of the paint stripping clamping mechanism to enter, and a top opening on the top of the protective box for the laser emitted by the laser to pass through.

[0010] Optionally, the tin plating mechanism further includes a tin plating bath and a tin plating fixture. The tin plating bath can be lifted and lowered within the tin plating bath. The tin plating fixture is located on the side of the tin plating bath closer to the paint stripping module, and the tin plating base is fixedly mounted on the tin plating fixture. The lifting component is used to drive the tin plating bath to move relative to the tin plating bath toward or away from the tin plating base, so that the pins of the inductor coil on the tin plating base are at least partially immersed in the molten tin in the tin plating bath. The lifting assembly includes a tin-plating lifting cylinder vertically disposed on one side of the tin-plating bath and a tin-plating connecting plate disposed on the piston rod of the tin-plating lifting cylinder. The tin-plating lifting cylinder is disposed on the same side as the tin-plating fixing frame, and the tin-plating connecting plate is used to connect the piston rod of the tin-plating lifting cylinder and the tin-plating bath.

[0011] Optionally, the tin plating module further includes a tin scraping mechanism for removing oxide film or solidified material from the surface of the molten tin in the tin plating bath; The tin scraping mechanism includes a tin scraping seat slidably disposed on one side of the tin plating bath, a scraper blade that can be raised and lowered on the tin scraping seat, a waste residue collection tank disposed at one end of the length direction of the tin plating bath, a first tin scraping cylinder for driving the tin scraping seat to move along the length direction of the tin plating bath, and a second tin scraping cylinder for driving the scraper blade to rise and fall vertically relative to the tin scraping seat so that the bottom end of the scraper blade contacts the surface of the molten tin in the tin plating bath.

[0012] Optionally, a flux buffer station is provided between the paint stripping module and the tin plating module. The flux buffer station includes a buffer component and a flux supply component. The buffer component is used to temporarily store the inductor coil that has been stripped of paint, and the flux supply component is used to apply flux to the pins of the inductor coil temporarily stored in the buffer component.

[0013] Optionally, the transfer mechanism includes a transfer frame and a first transfer component, a second transfer component, and a third transfer component disposed on the transfer frame. The first transfer component is used to transfer the inductor coil at the paint stripping module to the soldering buffer station. The second transfer component is used to transfer the inductor coil at the soldering buffer station to the tin plating mechanism. The third transfer component is used to transfer the inductor coil at the tin plating mechanism to the receiving mechanism.

[0014] This application also provides a method for removing the varnish from an inductor and tinning it, based on the inductor varnish removal and tinning machine described above, comprising the following steps: The inductor coil is supplied to the paint stripping module via a feeding mechanism; The inductor coil is supplied to the paint stripping module through the feeding mechanism; The inductor coil is positioned by the paint removal positioning and conveying mechanism of the paint removal module, and then the inductor coil is conveyed to the paint removal clamping mechanism. The inductor coil is clamped by a paint stripping clamping mechanism, and then the pins of the inductor coil clamped by the paint stripping clamping mechanism are laser-stripped. The inductor coil is driven to rotate by the paint removal clamping mechanism, enabling the laser paint removal mechanism to completely remove the paint from the parts of the inductor coil pins that need to be removed. The inductor coil with its pins stripped is transferred to the transfer mechanism via a stripping and positioning conveying mechanism. The inductor coil is transferred to the flux buffer station by the transfer mechanism. The flux buffer station buffers the inductor coil and applies flux to the parts of the pins that have been stripped of paint. The flux-coated inductor coil is transferred to the tin plating module by the transfer mechanism, and the flux-coated parts of the inductor coil are tin-plated by the tin plating module. The tin-plated inductor coils are transferred to the receiving mechanism via a transfer mechanism to complete the unloading process.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are as follows: This application provides an inductor stripping and tin plating machine and its tin plating method, including a machine body and a feeding mechanism, a stripping module, a tin plating module, a transfer mechanism, and a receiving mechanism disposed within the machine body. During operation, the feeding mechanism supplies inductor coils to the stripping module. The stripping module's stripping positioning and conveying mechanism precisely positions the inductor coil and conveys it to the stripping clamping mechanism. The stripping clamping mechanism firmly clamps the inductor coil, and in conjunction with a laser stripping mechanism, performs laser stripping on the pins, greatly improving the quality and speed of stripping. Simultaneously, the stripping clamping mechanism drives the inductor coil to rotate, allowing the laser stripping mechanism to perform comprehensive, thorough stripping of the pins, ensuring uniform and complete stripping. The stripping positioning and conveying mechanism then conveys the stripped inductor coil to the transfer mechanism, which quickly and smoothly transfers the inductor coil to the tin plating module. The tin plating mechanism of the tin plating module tin-plats the pins of the inductor coil, ensuring a uniform and firm tin layer on the stripped portion of the inductor coil pins. Finally, the transfer mechanism transfers the tin-plated inductor coils to the receiving mechanism to complete the unloading. The entire process is highly automated, greatly improving production efficiency. Compared to existing technologies that rely on wave soldering machines for soldering, the tin plating method used in this application targets the inductor leads for localized treatment, significantly reducing equipment footprint and procurement costs, while also substantially reducing energy consumption and maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a diagram illustrating the inductor coil in this embodiment; Figure 2 This is a schematic diagram of the overall structure of this embodiment; Figure 3 This is a partial view of this embodiment; Figure 4 This is a schematic diagram illustrating the cooperative relationship between the feeding mechanism, paint stripping module, tin plating module, transfer mechanism, and receiving mechanism in this embodiment; Figure 5 This is a diagram illustrating the feeding mechanism in this embodiment; Figure 6 This is a diagram illustrating the paint stripping module in this embodiment; Figure 7 This embodiment is a schematic diagram illustrating the cooperation relationship between the paint stripping clamping mechanism and the positioning conveying mechanism; Figure 8 This is a diagram illustrating the paint stripping mechanism in this embodiment; Figure 9 This is a schematic diagram illustrating the positional relationship between the transfer mechanism, the flux buffer station, the paint stripping module, and the receiving mechanism in this embodiment; Figure 10 This is a diagram illustrating the paint stripping mechanism in this embodiment; Figure 11 This is a diagram illustrating the flux buffer station in this embodiment; Figure 12 This is a diagram illustrating the transfer mechanism in this embodiment; Figure 13 This is a flowchart of the tin plating method provided in this embodiment.

[0018] Explanation of reference numerals in the attached drawings: 10. Machine body; 11. Feed port; 20. Feeding mechanism; 201. First feeding cylinder; 202. First feeding linear motor; 203. Second feeding linear motor; 204. Second feeding cylinder; 205. Third feeding cylinder; 206. Feeding motor; 21. Feeding tray; 211. Placement slot; 22. Feeding bracket; 23. Feeding sliding plate; 24. Feeding sliding seat; 25. Feeding lifting seat; 26. Feeding fixing plate; 27. Feeding gripper; 30. Paint stripping module; 301. Feeding station; 302. Paint stripping station; 303. Transfer station; 31. Paint stripping positioning and conveying mechanism; 311. Positioning seat; 312. Positioning rod; 3121. Positioning column; 313. First positioning cylinder; 314. Positioning gripper; 315. Second positioning cylinder; 32. Paint stripping clamping mechanism; 321. Clamping fixing frame; 322. Clamping lifting seat; 323. Clamping gripper; 324. First clamping cylinder; 325. Rotary motor; 326. Second clamping cylinder; 33. Laser paint stripping mechanism; 331. Laser paint stripping fixing frame; 332. Laser; 333. Mounting frame; 334. Protective box; 3341. Side opening; 3342. Top opening; 335. Paint stripping cylinder; 40. Tin plating module; 41. Tin plating mechanism; 411. Tin plating tank; 412. Tin plating base; 4121. Tin plating port; 413. Lifting assembly; 4131. Tin plating lifting cylinder; 4132. Connecting plate; 414. Tin plating pool; 415. Tin plating fixing frame; 416. First sensor; 42. Tin scraping mechanism; 421. Tin scraping base; 422. Scraper; 423. Waste residue collection tank; 424. First tin scraping cylinder; 425. Second tin scraping cylinder; 50. Transfer mechanism; 51. Transfer fixing frame; 52. First transfer assembly; 521. First transfer fixing frame; 522. First transfer lifting plate; 523. First transfer fixing plate; 524. First transfer gripper; 525. First transfer motor; 526. Second transfer motor; 527. First gripper cylinder; 53. Second transfer assembly; 531. Second transfer fixing frame; 532. Second transfer cylinder; 533. Second transfer fixing plate; 534. Second transfer gripper; 535. Second gripper cylinder; 54. Third transfer assembly; 55. Transfer sliding plate; 56. Transfer linear motor; 57. Protective cover; 571. Entrance / exit; 60. Receiving mechanism; 61. Receiving fixing plate; 62. Receiving rod; 70. Control mechanism; 80. Soldering buffer station; 81. Buffer assembly; 811. Buffer rack; 812. Buffer base; 8121. Buffer tank; 82. Flux supply assembly; 821. Flux pool; 822. Flux tank; 823. Soldering lifting cylinder; 824. Second sensor; 200, Inductor coil; 210, Coil body; 220, Pin. Detailed Implementation

[0019] The following will refer to the appendices in the embodiments of the present invention. Figures 1-13 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] This embodiment provides an inductor paint stripping and tin plating machine, referring to... Figure 1 and Figure 2 It is used to remove paint and tin plating the inductor coil 200. The inductor coil 200 includes a coil body 210 and two pins 220, and the two pins 220 are located on the same side of the coil body 210.

[0023] Reference Figure 2 , Figure 3 and Figure 4 The inductor paint stripping and tin plating machine includes a body 10 and a feeding mechanism 20, a paint stripping module 30, a tin plating module 40, a transfer mechanism 50, a receiving mechanism 60, and a control mechanism 70, all located within the body 10. The body 10 has a working chamber, and the feeding mechanism 20, paint stripping module 30, tin plating module 40, transfer mechanism 50, and receiving mechanism 60 are all located within the working chamber. A loading port 11 is provided on one side of the body 10, and the feeding mechanism 20 is located at the loading port 11. The control mechanism 70 is electrically connected to the feeding mechanism 20, paint stripping module 30, tin plating module 40, transfer mechanism 50, and receiving mechanism 60, and is used to control the coordinated operation of the above mechanisms.

[0024] The feeding mechanism 20 is used to supply the inductor coil 200. The paint stripping module 30 is located on one side of the feeding mechanism 20 and is used to strip the paint from the pins 220 of the inductor coil 200. The tin plating module 40 is located on one side of the paint stripping module 30 and is used to tin plating the inductor coil 200 after paint stripping. The transfer mechanism 50 is located between the paint stripping module 30, the tin plating module 40 and the receiving mechanism 60. It is used to transfer the inductor coil 200 whose pins 220 have been stripped from the paint stripping module 30 to the tin plating module 40, and to transfer the inductor coil 200 after being processed by the tin plating module 40 to the receiving mechanism 60. The receiving mechanism 60 is located on one side of the tin plating module 40 and is used to receive the tin-plated inductor coil 200, thereby completing the unloading.

[0025] During operation, the feeding mechanism 20 supplies the inductor coil 200 to the paint stripping module 30, which removes the paint from the pins 220 of the inductor coil 200. Then, the transfer mechanism 50 transfers the paint-removed inductor coil 200 to the tin plating module 40, which tin-plats the pins 220 of the inductor coil 200, so that the surface of the paint-removed part of the pins 220 is plated with a layer of metal tin. Finally, the transfer mechanism 50 transfers the tin-plated inductor coil 200 to the receiving mechanism 60 to complete the unloading.

[0026] Furthermore, referring to Figure 4 and Figure 5 The feeding mechanism 20 includes a feeding tray 21 slidably disposed on one side of the paint stripping module 30, a feeding bracket 22 disposed above the feeding tray 21, a feeding sliding plate 23 slidably disposed on the feeding bracket 22, a feeding sliding seat 24 slidably disposed on the feeding sliding plate 23, a feeding lifting seat 25 slidably disposed on the feeding sliding seat 24, a feeding fixing plate 26 rotatably disposed on the feeding lifting seat 25, and a feeding gripper 27 disposed on the feeding fixing plate 26.

[0027] The feeding tray 21 has multiple placement slots 211 for placing inductor coils 200; the feeding sliding plate 23 can move relative to the feeding bracket 22 in the X-axis direction toward or away from the paint stripping module 30; the feeding sliding seat 24 can move relative to the feeding sliding plate 23 in the Y-axis direction; the feeding lifting seat 25 can move vertically relative to the feeding sliding seat 24 in the Z-axis direction; the feeding fixing plate 26 is set in the Y-axis direction; and the feeding gripper 27 is used to grip the inductor coils 200 on the feeding tray 21.

[0028] In this embodiment, the X-axis direction is the length direction of the body 10, the Y-axis direction is the width direction of the body 10, and the Z-axis direction is the height direction of the body 10. The feeding mechanism 20 also includes a first feeding cylinder 201 for driving the feeding tray 21 to move closer to or further away from the paint stripping module 30 along the X-axis direction, a first feeding linear motor 202 for driving the feeding sliding plate 23 to move along the X-axis direction, a second feeding linear motor 203 for driving the feeding sliding seat 24 to move along the Y-axis direction, a second feeding cylinder 204 for driving the feeding lifting seat 25 to move along the Z-axis direction, a third feeding cylinder 205 for driving the feeding gripper 27 to open and close to clamp or release the inductor coil 200, and a feeding motor 206 for driving the feeding fixing plate 26 to rotate.

[0029] During operation, firstly, the first feeding cylinder 201 pushes the feeding tray 21 along the X-axis towards the paint stripping module 30 until the feeding tray 21 reaches the predetermined position. Simultaneously, the first feeding linear motor 202 drives the feeding sliding plate 23 to make fine adjustments along the X-axis on the feeding bracket 22, ensuring the feeding sliding plate 23 is in the optimal working position. Next, the second feeding linear motor 203 starts working, driving the feeding sliding seat 24 to move along the Y-axis on the feeding sliding plate 23, so that the feeding sliding seat 24 reaches a suitable position to clamp the inductor coil 200. At this time, the second feeding cylinder 204 starts, driving the feeding lifting seat 25 to descend vertically along the Z-axis until the feeding gripper 27 reaches a height capable of clamping the inductor coil 200. Subsequently, the third feeding cylinder 205 works, driving the feeding gripper 27 to open and close, clamping the inductor coil 200 in the placement slot 211 on the feeding tray 21. After clamping is complete, the second feeding cylinder 204 starts again, driving the feeding lifting seat 25 to rise vertically along the Z-axis, raising the inductor coil 200 to a certain height. If the angle of the inductor coil 200 needs to be adjusted, the feeding motor 206 starts, driving the feeding fixing plate 26 to rotate, which in turn drives the feeding gripper 27 and the inductor coil 200 to rotate together until the inductor coil 200 reaches the required processing angle. Finally, the first feeding linear motor 202 drives the feeding sliding plate 23 to move along the X-axis towards the paint stripping module 30, delivering the feeding gripper 27 holding the inductor coil 200 to the paint stripping module 30, thus supplying the inductor coil 200.

[0030] Furthermore, referring to Figure 4 , Figure 6 and Figure 7 The paint stripping module 30 includes a paint stripping positioning and conveying mechanism 31, a paint stripping clamping mechanism 32 for clamping and adjusting the posture of the inductor coil 200, and a laser paint stripping mechanism 33 for stripping the paint from the inductor coil 200. The paint stripping positioning and conveying mechanism 31 is used to position and convey the inductor coil 200 provided by the feeding mechanism 20. The paint stripping clamping mechanism 32 is used to clamp the inductor coil 200 positioned by the paint stripping conveying mechanism and can drive the inductor coil 200 to rotate, so that the laser paint stripping mechanism 33 can completely strip the paint from the parts of the pins 220 of the inductor coil 200 that need to be stripped.

[0031] Specifically, the paint stripping positioning and conveying mechanism 31 includes a positioning seat 311 on the sliding body 10, a positioning rod 312 fixedly mounted on the positioning seat 311, and a first positioning cylinder 313 mounted on the positioning seat 311. The positioning rod 312 is provided with at least one positioning post 3121 for positioning the inductor coil 200. The inductor coil 200 is sleeved on the positioning post 3121 and its pin 220 extends out from one side of the positioning rod 312. The first positioning cylinder 313 is used to drive the positioning seat 311 to move, so that after the positioning rod 312 receives the inductor coil 200 provided by the feeding mechanism 20, it conveys the inductor coil 200 to the paint stripping clamping mechanism 32 for the paint stripping clamping mechanism 32 to clamp. After the paint stripping of the pin 220 is completed, the positioning rod 312 can receive the inductor coil 200 clamped by the paint stripping clamping mechanism 32 and convey the inductor coil 200 to the transfer mechanism 50 under the drive of the first positioning cylinder 313.

[0032] In this embodiment, the paint stripping module 30 further includes a feeding station 301, a paint stripping station 302, and a transfer station 303. The feeding mechanism 20 places the inductor coil 200 onto the positioning post 3121 at the feeding station 301. The paint stripping clamping mechanism 32 clamps and releases the inductor coil 200 at the paint stripping station 302. The transfer mechanism 50 transfers the paint-stripped inductor coil 200 at the transfer station 303. There are two sets of positioning posts 3121, each set containing at least one positioning post 3121. One set of positioning posts 3121 moves back and forth between the feeding station 301 and the paint stripping station 302, while the other set moves back and forth between the paint stripping station 302 and the transfer station 303. Specifically, there are two feeding grippers 27, which are used to supply two inductor coils 200 to the feeding station 301 each time. There are two positioning posts 3121 in each group. The two positioning posts 3121 in one group are used to receive the two inductor coils 200 supplied by the feeding grippers 27 and move to the paint stripping station 302 under the drive of the first positioning cylinder 313 for the paint stripping clamping mechanism 32 to clamp. The two positioning posts 3121 in the other group are used to receive the two inductor coils 200 that have completed paint stripping released by the paint stripping clamping mechanism 32 and move to the transfer station 303 under the drive of the first positioning cylinder 313 for the transfer mechanism 50 to clamp.

[0033] Furthermore, the paint stripping positioning and conveying mechanism 31 also includes a positioning gripper 314 disposed on the positioning rod 312 and a second positioning cylinder 315 for driving the positioning gripper 314 to open and close. The positioning gripper 314 is located on one side of the positioning rod 312, and when the inductor coil 200 is sleeved on the positioning post 3121, the pin 220 of the inductor coil 200 is located inside the clamping end of the positioning gripper 314.

[0034] By setting the positioning gripper 314 and the second positioning cylinder 315, the position of the pin 220 relative to the inductor coil 200 can be adjusted so that the position of the pin 220 remains consistent when the inductor coil 200 is clamped by the paint stripping clamping mechanism 32, thereby improving the paint stripping effect and the paint stripping quality.

[0035] Furthermore, the paint stripping clamping mechanism 32 includes a clamping fixing frame 321 fixedly disposed on one side of the sliding seat, a clamping lifting seat 322 that can be lifted and lowered on the clamping fixing frame 321, a clamping jaw 323 rotatably disposed on the clamping lifting seat 322, a first clamping cylinder 324 for driving the clamping lifting seat 322 to rise and fall vertically relative to the clamping fixing frame 321, a rotary motor 325 for driving the clamping jaw 323 to rotate relative to the clamping lifting seat 322, and a second clamping cylinder 326 for driving the clamping jaw 323 to open and close to clamp or release the inductor coil 200.

[0036] When the first positioning cylinder 313 drives the positioning seat 311 to move, causing the positioning post 3121 on the positioning rod 312 to move to the paint stripping station 302, the first clamping cylinder 324 drives the clamping lifting seat 322 to descend. Then, the second clamping cylinder 326 drives the clamping jaws 323 to close to grab the inductor coil 200. Subsequently, the first clamping cylinder 324 drives the clamping lifting seat 322 to rise to a preset height, so that the laser paint stripping mechanism 33 can strip the paint from the pins 220 of the inductor coil 200 held by the clamping jaws 323. During the paint stripping process, the clamping jaws 323 are driven to rotate by the rotary motor 325, so that the laser paint stripping mechanism 33 can completely strip the paint from the parts of the pins 220 that need to be stripped, ensuring the quality of the paint stripping.

[0037] Furthermore, referring to Figure 6 , Figure 7 and Figure 8 The laser paint stripping mechanism 33 includes a laser paint stripping fixture 331, a laser 332 fixed on the laser paint stripping fixture 331 and located above the paint stripping clamping mechanism 32, a mounting bracket 333 located on one side of the laser paint stripping fixture 331, a protective box 334 slidably mounted on the mounting bracket 333, and a paint stripping cylinder 335 mounted on the mounting bracket 333 for driving the protective box 334 to move closer to or away from the paint stripping clamping mechanism 32. The side wall of the protective box 334 has a side opening 3341 for the clamping end of the paint stripping clamping mechanism 32 to enter, and the top of the protective box 334 has a top opening 3342 for the laser emitted by the laser 332 to pass through.

[0038] When the gripper 323 picks up the inductor coil 200 that needs to be stripped and rises to a preset height under the drive of the first gripping cylinder 324, the stripping cylinder 335 drives the protective box 334 to move closer to the stripping gripping mechanism 32. This causes the gripping end of the stripping gripping mechanism 32 (i.e., the gripper 323 and the inductor coil 200 it grips) to enter the protective box 334 through the side opening 3341. Subsequently, the laser 332 operates, and the laser emitted by the laser 332 enters the protective box 334 through the top opening 3342 and irradiates the pin 220 of the inductor coil 200 being gripped, thus stripping the paint from the pin 220. Stripping the paint inside the protective box 334 effectively prevents laser leakage from harming the operator and avoids interference from external environmental factors, ensuring the stability and safety of the stripping environment.

[0039] Furthermore, referring to Figure 4 , Figure 9 and Figure 10 The tin plating module 40 includes a tin plating mechanism 41, which includes a tin plating tank 411, a tin plating base 412 fixedly disposed above the tin plating tank 411, and a lifting assembly 413 for driving the tin plating tank 411 and / or the tin plating base 412 to perform relative lifting and lowering movements. The tin plating tank 411 contains molten tin, and the tin plating base 412 has a tin plating port 4121 for positioning the inductor coil 200. The inductor coil 200 is housed in the tin plating port 4121 and its pins 220 extend from the bottom of the tin plating port 4121. The lifting assembly 413 is used to drive at least one of the tin plating tank 411 and the tin plating base 412 to perform lifting and lowering movements so that the part of the pins 220 that has been de-coated is immersed in the molten tin.

[0040] When the transfer mechanism 50 transfers the de-coated inductor coil 200 to the tin plating port 4121 on the tin plating base 412, the de-coated pins 220 of the inductor coil 200 extend from the bottom of the tin plating port 4121. At this time, the lifting assembly 413 drives at least one of the tin plating tank 411 and the tin plating base 412 to move up and down, so that the de-coated part of the pin 220 can be immersed in the molten tin in the tin plating tank 411, thereby plating a layer of metallic tin on the surface of the de-coated part of the pin 220.

[0041] It should be noted that the tin plating process used in this application is a "hot-dip plating process." The tin plating bath 411 is equipped with an electric heating component and a temperature sensor. The electric heating component is used to heat the molten tin in the tin plating bath 411, keeping it within the required operating temperature range. The temperature sensor monitors the temperature of the molten tin in real time and feeds the temperature information back to the control mechanism 70. Based on the information fed back by the temperature sensor, the control mechanism 70 precisely controls the operating state of the electric heating component to ensure that the temperature of the molten tin remains stable within a suitable range, thereby ensuring the consistency and stability of the tin plating quality.

[0042] Furthermore, the tin plating mechanism 41 also includes a tin plating bath 414 and a tin plating fixture 415. The tin plating bath 411 is vertically and vertically disposed within the tin plating bath 414. The tin plating fixture 415 is located on the side of the tin plating bath 414 near the paint stripping module 30, and the tin plating base 412 is fixed on the tin plating fixture 415. The lifting assembly 413 is used to drive the tin plating bath 411 to move relative to the tin plating bath 414 toward or away from the tin plating base 412, so that the part of the pin 220 of the inductor coil 200 on the tin plating base 412 that has completed paint stripping enters the molten tin in the tin plating bath 411.

[0043] It should be noted that the tin bath contains molten tin. When the tin plating tank 411 is in its initial position, its top is below the molten tin surface in the tin bath, so that the tin plating tank 411 is filled with molten tin. When the lifting component 413 drives the tin plating tank 411 to rise, the tin plating tank 411 rises with the molten tin inside and comes into contact with the pin 220 of the inductor coil 200 on the tin plating base 412, so that the surface of the part of the pin 220 that has been de-painted is plated with a layer of tin.

[0044] In other embodiments, the lifting component 413 may also be configured to drive the tin plating base 412 to move vertically relative to the tin plating tank 411, and the tin plating pool 414 may be deleted depending on the actual situation, without further limitation.

[0045] Furthermore, the lifting assembly 413 includes a tin-plating lifting cylinder 4131 vertically disposed on one side of the tin plating bath 414 and a connecting plate 4132 disposed on the piston rod of the tin-plating lifting cylinder 4131. The tin-plating lifting cylinder 4131 is disposed on the same side as the tin plating fixing frame 415. The tin plating connecting plate 4132 is used to connect the piston rod of the tin-plating lifting cylinder 4131 and the tin plating bath 411, so that the tin-plating lifting cylinder 4131 can drive the tin plating bath 411 to move relative to the tin plating bath 414 toward or away from the tin plating seat 412.

[0046] When the transfer mechanism 50 transfers the de-coated inductor coil 200 to the tin plating port 4121 on the tin plating base 412, the de-coated portion of the inductor coil 200 leads protrudes from the bottom of the tin plating port 4121. At this time, the connecting plate 4132 is driven to rise by the lifting cylinder, which drives the tin plating tank 411 to move relative to the tin plating pool 414 toward the tin plating base 412, so that the de-coated portion of the leads 220 can be immersed in the molten tin in the tin plating tank 411 to complete the tin plating.

[0047] Furthermore, the tin plating mechanism 41 also includes a first sensor 416 disposed on the tin plating base 412 for sensing the inductor coil 200. This first sensor 416 can accurately detect whether the inductor coil 200 is placed in the tin plating port 4121. When the first sensor 416 detects that the inductor coil 200 is correctly placed in the tin plating port 4121, it sends a signal to the control mechanism 70. Upon receiving the signal, the control mechanism 70 controls the lifting cylinder to start, driving the tin plating tank 411 to rise for tin plating. This effectively avoids tin plating failure or equipment malfunction caused by the inductor coil 200 not being properly placed, improving the reliability and stability of the tin plating process.

[0048] Furthermore, referring to Figure 9 and Figure 11 The tin plating module 40 also includes a tin scraping mechanism 42, which is used to remove the oxide film or solidified material from the surface of the molten tin in the tin plating bath 414.

[0049] It should be noted that after prolonged standing or contact with air, an oxide film or solidified substance can easily form on the surface of the molten solder. If this substance is not removed in time, it will affect the tin plating quality of the subsequent pins 220 of the inductor coil 200, leading to problems such as uneven plating and poor adhesion. The tin scraping mechanism 42 is designed to solve this problem. In actual operation, when the tin plating module 40 is performing tin plating, the tin scraping mechanism 42 will automatically start according to the set time interval or according to the surface condition of the molten solder. For example, before the lifting cylinder drives the tin plating tank 411 to rise, the tin scraping mechanism 42 starts and cleans the surface of the molten solder to ensure that the pins 220 of the inductor coil 200 can contact clean and uniform molten solder each time tin plating is performed, thereby greatly improving the quality and efficiency of tin plating.

[0050] Furthermore, the tin scraping mechanism 42 includes a tin scraping seat 421 slidably disposed on one side of the tin plating bath 414, a scraper 422 that can be raised and lowered on the tin scraping seat 421, a waste residue collection tank 423 disposed at one end of the length direction of the tin plating bath 414, a first tin scraping cylinder 424 for driving the tin scraping seat 421 to move along the length direction of the tin plating bath 414, and a second tin scraping cylinder 425 for driving the scraper 422 to rise and fall vertically relative to the tin scraping seat 421 so that the bottom end of the scraper 422 contacts the surface of the molten tin in the tin plating bath 414.

[0051] When soldering is required, the second soldering cylinder 425 drives the soldering base 421 to descend vertically, causing the bottom end of the scraper 422 to contact the surface of the molten solder and be at least partially immersed in the molten solder. Subsequently, the first soldering cylinder 424 drives the soldering base 421 to move along the length of the tin plating bath 414, moving the scraper 422 so that the scraper 422 can scrape off the oxide film or solidified material on the surface of the molten solder and push it into the waste collection tank 423. Specifically, during the movement of the scraper 422, its bottom will contact the oxide film or solidified material on the surface of the molten solder. As the scraper 422 moves, these impurities are peeled off from the surface of the molten solder and are finally pushed into the waste collection tank 423 at one end of the tin plating bath 414.

[0052] Furthermore, referring to Figure 9 and Figure 10 Between the paint stripping module 30 and the tin plating module 40, there is also a flux buffer station 80. The flux buffer station 80 includes a buffer component 81 and a flux supply component 82. The buffer component 81 is used to temporarily store the inductor coil 200 that has been stripped of paint, and the flux supply component 82 is used to apply flux to the pins 220 of the inductor coil 200 temporarily stored in the buffer component 81.

[0053] The flux buffer station 80 creates a buffer zone between the paint stripping and tinning processes, preventing production stoppages caused by inconsistent process rhythms. The buffer component 81 ensures that the stripped inductor coil 200 can orderly await tinning. The flux supply component 82 applies flux to the stripped portions of the inductor coil 200's pins 220, improving tinning quality, enhancing the bond between the tin layer and pins 220, and increasing the reliability and stability of the tinning process.

[0054] Furthermore, the cache assembly 81 includes a cache frame 811 fixedly mounted on the body 10 and a cache seat 812 mounted on the cache frame 811. The cache frame 811 is located on the side of the tin plating module 40 facing the paint stripping module 30. The cache seat 812 has a through cache slot 8121. When the transfer mechanism 50 transfers the inductor coil 200 into the cache slot 8121 on the cache seat 812, the pins 220 of the inductor coil 200 extend from the bottom of the cache slot 8121.

[0055] The flux supply assembly 82 includes a flux pool 821, a flux tank 822 that is vertically movable within the flux pool 821, and a flux lifting cylinder 823 for driving the flux tank 822 to vertically lift relative to the flux pool 821, so that the de-coated leads 220 of the inductor coil 200 on the buffer holder 812 are immersed in the flux tank 822. The flux pool 821 is located on the side of the buffer rack 811 facing the tin plating module 40, and contains flux for soldering. Flux tank 822 is located directly below buffer base 812, and the initial position of flux tank 822 is below the liquid surface of flux inside flux pool 821, so that flux tank 822 is filled with flux. Then, driven by flux lifting cylinder 823, it moves relative to flux pool 821 towards buffer base 812, so that the part of the pin 220 of inductor coil 200 on buffer base 812 that has completed the paint removal is immersed in flux and coated with a layer of flux.

[0056] In addition, the flux supply assembly 82 also includes a second sensor 824 fixedly mounted on the buffer base 812 for sensing the inductor coil 200. The second sensor 824 is electrically connected to the control mechanism 70. When the second sensor 824 senses that the inductor coil 200 is placed in the buffer tank 8121, it will send a signal to the control mechanism 70. After receiving the signal, the control mechanism 70 controls the flux lifting cylinder 823 to start, driving the flux tank 822 to move relative to the flux pool 821 towards the buffer base 812, thereby immersing the lead 220 of the inductor coil 200 on the buffer base 812, which has completed the stripping of the paint, into the flux.

[0057] Furthermore, referring to Figure 4 , Figure 9 and Figure 12 The transfer mechanism 50 includes a transfer frame 51 and a first transfer component 52, a second transfer component 53 and a third transfer component 54 disposed on the transfer frame 51. The first transfer component 52 is used to transfer the inductor coil 200 at the paint stripping module 30 to the soldering buffer station 80. The second transfer component 53 is used to transfer the inductor coil 200 at the soldering buffer station 80 to the tin plating mechanism 41. The third transfer component 54 is used to transfer the inductor coil 200 at the tin plating mechanism 41 to the receiving mechanism 60.

[0058] During operation, firstly, the first transfer component 52 steadily picks up the stripped inductor coil 200 from the stripping module 30 and accurately transfers it to the buffer seat 812 of the flux buffer station 80. At this time, the leads 220 of the inductor coil 200 extend from the bottom of the buffer tank 8121. Next, the flux lifting cylinder 823 drives the flux tank 822 to rise relative to the flux pool 821, immersing the stripped leads 220 of the inductor coil 200 into the flux tank 822, coating the leads 220 with a layer of flux. Subsequently, the second transfer component 53 picks up the flux-coated inductor coil 200 from the flux buffer station 80 and smoothly transfers it to the tin plating mechanism 41. In the tin plating mechanism 41, the inductor coil 200 undergoes tin plating. Finally, the third transfer assembly 54 transfers the tin-plated inductor coil 200 at the tin plating mechanism 41 to the receiving mechanism 60, completing the entire tin plating and de-coating process of the inductor coil 200.

[0059] Furthermore, to ensure the synchronous movement of the first transfer assembly 52, the second transfer assembly 53, and the third transfer assembly 54, the transfer mechanism 50 also includes a transfer sliding plate 55 slidably mounted on the transfer fixing frame 51 and a transfer linear motor 56 for driving the transfer sliding plate 55. The first transfer assembly 52, the second transfer assembly 53, and the third transfer assembly 54 are all mounted on the transfer sliding plate 55. During operation, the transfer linear motor 56 drives the transfer sliding plate 55 to move along the length of the transfer fixing frame 51, thereby enabling the synchronous execution of three processes: the first transfer assembly 52 transferring the stripped inductor coil 200 to the buffer seat 812; the second transfer assembly 53 transferring the flux-coated inductor coil 200 to the solder seat; and the third transfer assembly 54 transferring the soldered inductor coil 200 to the receiving assembly. This significantly improves production efficiency and reduces waiting time between different processes.

[0060] Specifically, the first transfer assembly 52 includes a first transfer fixing frame 521 fixedly mounted on the transfer sliding plate 55, a first transfer lifting plate 522 liftable from the bottom side of the first transfer fixing frame 521, a first transfer fixing plate 523 fixedly mounted on the first transfer lifting plate 522, a first transfer gripper 524 mounted on the first transfer fixing plate 523, a first transfer motor 525 for driving the first transfer lifting plate 522 to move vertically, a second transfer motor 526 for driving the first transfer fixing plate 523 to rotate, and a first gripper cylinder 527 for driving the first transfer gripper 524 to open and close. In this embodiment, a screw nut seat and other structures are also provided between the first transfer motor 525 and the first transfer lifting plate 522, so that the first transfer motor 525 can drive the first transfer lifting plate 522 to move vertically when it is working. This is conventional technology in the art and will not be described in detail here.

[0061] During operation, the first transfer motor 525 drives the first transfer lifting plate 522 to move vertically, causing the first transfer fixing plate 523 and the first transfer gripper 524 on it to reach a suitable height. Then, the second transfer motor 526 drives the first transfer fixing plate 523 to rotate, adjusting the angle of the first transfer gripper 524 so as to accurately grasp the inductor coil 200 that has been stripped of paint at the transfer station 303. At this time, the first gripper cylinder 527 drives the first transfer gripper 524 to open and close, firmly clamping the inductor coil 200 that has been stripped of paint. When the transfer linear motor 56 drives the transfer sliding plate 55 to move, the inductor coil 200 is transferred to the buffer seat 812. Before transferring the inductor coil 200 to the buffer seat 812, the second transfer motor 526 rotates again to adjust the posture of the inductor coil 200 on the first transfer gripper 524, preparing for the subsequent process (flux coating).

[0062] The second transfer assembly 53 includes a second transfer fixing frame 531 fixed on the transfer sliding plate 55, a second transfer cylinder 532 vertically mounted on the second transfer fixing frame 531, a second transfer fixing plate 533 mounted on the piston rod of the second transfer cylinder 532, a second transfer gripper 534 mounted on the second transfer fixing plate 533, and a second gripper cylinder 535 for driving the second transfer gripper 534 to open and close. The second transfer cylinder 532 is used to drive the second transfer fixing plate 533 to descend vertically, thereby causing the second transfer gripper 534 to descend, so that the second transfer gripper 534 can grab the inductor coil 200 on the buffer seat 812 and transfer it to the tin-plating seat 412.

[0063] The third transfer assembly 54 has the same structure as the second transfer assembly 53, and will not be described in detail here.

[0064] In addition, the transfer mechanism 50 also includes a protective cover 57. The second transfer component 53 and the third transfer component 54 are both located inside the protective cover 57. The side wall of the protective cover 57 is also provided with an entrance / exit 571 for the first transfer component 52 to enter and exit. By setting up the protective cover 57, it is possible to effectively prevent external impurities, dust, etc. from falling onto the inductor coil 200 during the transfer process, avoiding contamination of the inductor coil 200, ensuring the cleanliness of the inductor coil 200 during the paint stripping and tin plating process, thereby improving the quality and yield of the inductor tin plating.

[0065] Furthermore, the receiving assembly includes a receiving fixing plate 61 and a receiving rod 62 disposed on the receiving fixing plate 61. The receiving fixing plate 61 is located on the side of the tin plating module 40 away from the paint stripping module 30. The machine body 10 has a feeding port corresponding to the position of the receiving rod 62. The receiving rod 62 is roughly Z-shaped, with one end fixedly connected to the receiving fixing plate 61 and the other end extending towards the paint stripping module 30.

[0066] In other embodiments, the receiving rod 62 may also be configured in other shapes, which will not be limited here.

[0067] During material collection, the third transfer component 54 transfers the tin-plated inductor coil 200 to the collection rod 62, and the collection rod 62 stores and collects the inductor coil 200, thereby realizing the material collection of the inductor coil 200.

[0068] The second aspect of this embodiment provides a method for removing tin plating from an inductor, referring to... Figure 13 Based on the inductor paint stripping and tin plating machine described above, the following steps are included: 101. The inductor coil 200 is supplied to the paint stripping module 30 through the feeding mechanism 20; 102. The inductor coil 200 is positioned by the paint removal positioning and conveying mechanism 31 of the paint removal module 30, and the inductor coil 200 is conveyed to the paint removal clamping mechanism 32. 103. The inductor coil 200 is clamped by the paint removal clamping mechanism 32, and then the lead 220 of the inductor coil 200 clamped by the paint removal clamping mechanism 32 is laser-removed by the laser paint removal mechanism 33. 104. The inductor coil 200 is driven to rotate by the paint removal clamping mechanism 32, so that the laser paint removal mechanism 33 can completely remove the paint from the parts of the pins 220 of the inductor coil 200 that need to be removed. 105. The inductor coil 200 with the pin 220 stripped is transferred to the transfer mechanism 50 by the stripping and positioning conveying mechanism 31. 106. The inductor coil 200 is transferred to the flux buffer station 80 by the transfer mechanism 50. The flux buffer station 80 buffers the inductor coil 200 and applies flux to the part of the pin 220 that has been stripped of paint. 107. The flux-coated inductor coil 200 is transferred to the tin plating module 40 by the transfer mechanism 50, and the flux-coated portion of the pin 220 of the inductor coil 200 is tin-plated by the tin plating module 40. 108. The tin-plated inductor coil 200 is transferred to the receiving mechanism 60 via the transfer mechanism 50 to complete the unloading.

[0069] Working Principle: During operation, the feeding mechanism 20 systematically supplies the inductor coils 200 to be processed onto the paint removal positioning and conveying mechanism 31 of the paint removal module 30. The paint removal positioning and conveying mechanism 31 of the paint removal module 30 precisely positions the inductor coils 200 and smoothly conveys them to the paint removal clamping mechanism 32. The paint removal clamping mechanism 32 clamps the inductor coil 200, and then the laser paint removal mechanism 33 performs laser paint removal on the pins 220 of the clamped inductor coil 200. During the paint removal process, the inductor coil 200 is driven to rotate by the paint removal clamping mechanism 32, so that the laser can fully cover the part of the pins 220 that needs to be removed, ensuring thorough paint removal. After the paint removal of the pins 220 is completed, the paint removal positioning and conveying mechanism 31 conveys the inductor coil 200 to the transfer mechanism 50. The transfer mechanism 50 transfers the inductor coil 200 to the flux buffer station 80. At the flux buffer station 80, the inductor coil 200 is temporarily stored, while the flux supply component 82 applies flux to the parts of the inductor coil 220 that have already had their paint removed, preparing them for subsequent tin plating. Then, the transfer mechanism 50 transfers the flux-coated inductor coil 200 to the tin plating module 40. The tin plating module 40 tin-plats the flux-coated parts of the inductor coil 200's leads 220, forming a uniform and dense tin layer. Finally, the transfer mechanism 50 transfers the tin-plated inductor coil 200 to the receiving mechanism 60, completing the entire unloading process.

[0070] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. An inductor paint stripping and tin plating machine, characterized in that, It includes a body (10) and a feeding mechanism (20), a paint stripping module (30), a tin plating module (40), a transfer mechanism (50) and a receiving mechanism (60) provided in the body (10); The feeding mechanism (20) is used to supply the inductor coil (200); The paint stripping module (30) is located on one side of the feeding mechanism (20) and is used to strip the paint from the pins (220) of the inductor coil (200). It includes a paint stripping positioning and conveying mechanism (31), a paint stripping clamping mechanism (32) for clamping and adjusting the posture of the inductor coil (200), and a laser paint stripping mechanism (33) for stripping the paint from the inductor coil (200). The paint stripping positioning and conveying mechanism (31) is used to position and convey the inductor coil (200) provided by the feeding mechanism (20). The paint stripping clamping mechanism (32) is used to clamp the inductor coil (200) positioned by the paint stripping conveying mechanism and can drive the inductor coil (200) to rotate, so that the laser paint stripping mechanism (33) can completely strip the paint from the parts of the pins (220) of the inductor coil (200) that need to be stripped. The tin plating module (40) is used to tin-plat the inductor coil (200) after paint removal. It includes a tin plating mechanism (41), which comprises a tin plating tank (411), a tin plating base (412) fixedly disposed above the tin plating tank (411), and a lifting assembly (413) for driving the tin plating tank (411) and / or the tin plating base (412) to move relative to each other. The tin plating tank (411) contains molten tin. The tin plating base (412) has a tin plating port (4121) for positioning the inductor coil (200). The inductor coil (200) is housed in the tin plating port (4121) and its pins (220) extend from the bottom of the tin plating port (4121). The lifting assembly (413) is used to drive at least one of the tin plating tank (411) and the tin plating base (412) to move up and down so that the part of the pin (220) that has been stripped of paint is immersed in the molten tin. The transfer mechanism (50) is located between the paint stripping module (30), the tin plating module (40) and the receiving mechanism (60), and is used to transfer the inductor coil (200) whose pins (220) have been stripped at the paint stripping module (30) to the tin plating module (40), and to transfer the inductor coil (200) after being processed by the tin plating module (40) to the receiving mechanism (60); The receiving mechanism (60) is located on one side of the tin plating module (40) and is used to receive the tin-plated inductor coil (200) to complete the unloading.

2. The inductor paint stripping and tin plating machine according to claim 1, characterized in that, The paint stripping positioning and conveying mechanism (31) includes a positioning seat (311) on a sliding body (10), a positioning rod (312) fixed on the positioning seat (311), and a first positioning cylinder (313) on the positioning seat (311). The positioning rod (312) is provided with at least one positioning post (3121) for positioning an inductor coil (200). The inductor coil (200) is sleeved on the positioning post (3121) and its pin (220) extends out from one side of the positioning rod (312). The first positioning cylinder (313) is used to drive the positioning seat (311) to move, so that after the positioning rod (312) receives the inductor coil (200) provided by the feeding mechanism (20), it will transport the inductor coil (200) to the paint stripping clamping mechanism (32) for the paint stripping clamping mechanism (32) to clamp. After the paint stripping of the pin (220) is completed, the positioning rod (312) can receive the inductor coil (200) clamped by the paint stripping clamping mechanism (32) and transport the inductor coil (200) to the transfer mechanism (50) under the drive of the first positioning cylinder (313).

3. The inductor paint stripping and tin plating machine according to claim 2, characterized in that, The paint stripping positioning and conveying mechanism (31) further includes a positioning gripper (314) disposed on the positioning rod (312) and a second positioning cylinder (315) for driving the positioning gripper (314) to open and close. The positioning gripper (314) is located on one side of the positioning rod (312), and when the inductor coil (200) is sleeved on the positioning post (3121), the pin (220) of the inductor coil (200) is located inside the clamping end of the positioning gripper (314).

4. The inductor paint stripping and tin plating machine according to claim 1, characterized in that, The paint stripping clamping mechanism (32) includes a clamping frame (321) fixedly mounted on one side of the positioning seat (311), a clamping lifting seat (322) that can be raised and lowered on the clamping frame (321), a clamping jaw (323) rotatably mounted on the clamping lifting seat (322), a first clamping cylinder (324) for driving the clamping lifting seat (322) to rise and fall vertically relative to the clamping frame (321), a rotary motor (325) for driving the clamping jaw (323) to rotate relative to the clamping lifting seat (322), and a second clamping cylinder (326) for driving the clamping jaw (323) to open and close to clamp or release the inductor coil (200).

5. The inductor paint stripping and tin plating machine according to claim 1, characterized in that, The laser paint stripping mechanism (33) includes a laser paint stripping fixture (331), a laser (332) fixed on the laser paint stripping fixture (331) and located above the paint stripping clamping mechanism (32), a mounting bracket (333) on one side of the laser paint stripping fixture (331), a protective box (334) slidably mounted on the mounting bracket (333), and a paint stripping cylinder (335) mounted on the mounting bracket (333) for driving the protective box (334) to move closer to or away from the paint stripping clamping mechanism (32). The protective box (334) has a side opening (3341) on its side wall for the clamping end of the paint stripping clamping mechanism (32) to enter, and a top opening (3342) on the top of the protective box (334) for the laser emitted by the laser (332) to pass through.

6. The inductor paint stripping and tin plating machine according to claim 1, characterized in that, The tin plating mechanism (41) further includes a tin plating bath (414) and a tin plating fixture (415). The tin plating bath (411) is vertically mounted in the tin plating bath (414). The tin plating fixture (415) is located on the side of the tin plating bath (414) near the paint stripping module (30), and the tin plating base (412) is fixedly mounted on the tin plating fixture (415). The lifting assembly (413) is used to drive the tin plating bath (411) to move relative to the tin plating bath (414) toward or away from the tin plating base (412), so that the pins (220) of the inductor coil (200) on the tin plating base (412) are at least partially immersed in the molten tin in the tin plating bath (411). The lifting assembly (413) includes a tin-plating lifting cylinder (4131) vertically disposed on one side of the tin plating bath (414) and a tin-plating connecting plate (4132) disposed on the piston rod of the tin-plating lifting cylinder (4131). The tin-plating lifting cylinder (4131) is disposed on the same side as the tin plating fixing frame (415). The tin-plating connecting plate (4132) is used to connect the piston rod of the tin-plating lifting cylinder (4131) and the tin plating bath (411).

7. The inductor paint stripping and tin plating machine according to claim 6, characterized in that, The tin plating module (40) also includes a tin scraping mechanism (42), which is used to remove the oxide film or solidified material on the surface of the tin liquid in the tin plating bath (414); The tin scraping mechanism (42) includes a tin scraping seat (421) slidably disposed on one side of the tin plating bath (414), a scraper (422) that can be raised and lowered on the tin scraping seat (421), a waste residue collection tank (423) disposed at one end of the length direction of the tin plating bath (414), a first tin scraping cylinder (424) for driving the tin scraping seat (421) to move along the length direction of the tin plating bath (414), and a second tin scraping cylinder (425) for driving the scraper (422) to rise and fall vertically relative to the tin scraping seat (421) so that the bottom end of the scraper (422) contacts the surface of the molten tin in the tin plating bath (414).

8. The inductor paint stripping and tin plating machine according to claim 1, characterized in that, A flux buffer station (80) is also provided between the paint stripping module (30) and the tin plating module (40). The flux buffer station (80) includes a buffer component (81) and a flux supply component (82). The buffer component (81) is used to temporarily store the inductor coil (200) that has been stripped of paint. The flux supply component (82) is used to apply flux to the pins (220) of the inductor coil (200) temporarily stored in the buffer component (81).

9. The inductor paint stripping and tin plating machine according to claim 8, characterized in that, The transfer mechanism (50) includes a transfer fixture (51) and a first transfer component (52), a second transfer component (53) and a third transfer component (54) disposed on the transfer fixture (51). The first transfer component (52) is used to transfer the inductor coil (200) at the paint stripping module (30) to the soldering buffer station (80). The second transfer component (53) is used to transfer the inductor coil (200) at the soldering buffer station (80) to the tin plating mechanism (41). The third transfer component (54) is used to transfer the inductor coil (200) at the tin plating mechanism (41) to the receiving mechanism (60).

10. A method for removing varnish and tinning in an inductor, based on the inductor varnish removal and tinning machine as described in any one of claims 1-9, characterized in that, Includes the following steps: The inductor coil (200) is supplied to the paint stripping module (30) via the feeding mechanism (20); The inductor coil (200) is positioned by the paint removal positioning and conveying mechanism (31) of the paint removal module (30), and the inductor coil (200) is conveyed to the paint removal clamping mechanism (32); The inductor coil (200) is clamped by the paint removal clamping mechanism (32), and then the pins (220) of the inductor coil (200) clamped by the paint removal clamping mechanism (32) are laser-removed by the laser paint removal mechanism (33). The inductor coil (200) is driven to rotate by the paint removal clamping mechanism (32), so that the laser paint removal mechanism (33) can completely remove the paint from the parts of the pins (220) of the inductor coil (200) that need to be removed; The inductor coil (200) with the pins (220) stripped is transferred to the transfer mechanism (50) by the stripping positioning and conveying mechanism (31); The inductor coil (200) is transferred to the flux buffer station (80) by the transfer mechanism (50). The flux buffer station (80) buffers the inductor coil (200) and applies flux to the parts of the pins (220) that have been stripped of paint. The flux-coated inductor coil (200) is transferred to the tin plating module (40) by the transfer mechanism (50), and the flux-coated portion of the pins (220) of the inductor coil (200) is tin-plated by the tin plating module (40). The tin-plated inductor coil (200) is transferred to the receiving mechanism (60) by the transfer mechanism (50) to complete the unloading.

Images