A pin tinning device for U-shaped inductors
By designing an automated tin plating device for I-shaped inductor leads, the problem of low efficiency of manual operation in the tin plating process of small inductors was solved, achieving efficient and stable tin plating and improving the automation level of inductor production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGXING SOFITEL ELECTRONICS
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-29
AI Technical Summary
The tin plating process for small and medium-sized I-beam inductors in the current technology relies on manual operation, which is inefficient and can easily affect product quality, resulting in losses for enterprises.
A tin plating device for I-shaped inductor pins was designed, comprising a worktable, a feeding assembly, a transfer assembly, a corner assembly, and a pick-and-place assembly. The device achieves inductor arrangement and feeding, lateral movement, angle adjustment, and tin plating through automated equipment, ensuring the stability and accuracy of the tin plating.
The automated clamping and tinning of small I-shaped inductors has been achieved, which improves the blanking accuracy and tinning effect, reduces fatigue and errors of manual operation, and improves production efficiency.
Smart Images

Figure CN224299320U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inductor processing technology, and in particular to a device for tin plating the pins of an I-shaped inductor. Background Technology
[0002] There is an I-shaped inductor component, which includes a column and two wires on top of the column. During the production and processing of this inductor, it needs to be tin-plated. Traditional processing methods mostly rely on manual operation. Due to the small size of the product, manual operation is quite inconvenient, and the efficiency of manual operation is low. Long-term work can easily cause fatigue, affect concentration, and easily affect product quality, which can seriously affect the company's efficiency. Utility Model Content
[0003] The present invention aims to overcome the shortcomings of existing technologies in that it is not easy to tin-plate small inductors, and provides a pin tin-plating device for clamping and tin-plating small I-shaped inductors.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A pin tinning device for an I-type inductor, comprising:
[0006] A workbench, on which a soldering pool and a tin plating pool are installed;
[0007] The unloading assembly is installed on the workbench and corresponds to the soldering pool and the tin plating pool. The unloading assembly is equipped with a detection component.
[0008] A transfer assembly, which is mounted on a workbench and positioned above a tin plating bath;
[0009] Corner assembly, which is mounted on transfer assembly;
[0010] The pick-and-place component is mounted on the corner component and corresponds to the unloading component.
[0011] The workbench is used to install the overall structure. A flux pool for soldering and a tin plating pool for tin plating are installed on the workbench. Inductors are arranged and fed using a feeding assembly. During the feeding process, a detection assembly ensures stable feeding and quantity, guaranteeing stable tin plating. After feeding, the inductors are clamped by a pick-and-place assembly. A lateral movement assembly then moves the inductors to their corresponding positions in the flux pool and tin plating pool. The lifting and lowering of the pick-and-place assembly causes the inductor leads to be inserted into the flux pool and tin plating pool. Then, a corner assembly rotates the inductor for easier clamping in subsequent processes, achieving the purpose of clamping and tin plating small I-beam inductors.
[0012] Preferably, the feeding assembly includes a vibratory feeder, a discharge frame, a distribution plate, and a receiving frame. The discharge port of the vibratory feeder corresponds to one end of the discharge frame. The discharge frame is mounted on a workbench. A rotating shaft is mounted on the bottom surface of the distribution plate. The distribution plate is rotatably connected to the workbench via the rotating shaft. The distribution plate has several circumferentially distributed receiving slots. One side of the distribution plate corresponds to the discharge frame, and the other end of the distribution plate corresponds to the receiving frame. A motor is mounted on the workbench. A gear is mounted on the motor shaft of the motor. A tensioning wheel is mounted on the workbench and rotatably connected to the workbench. A gear is mounted on the rotating shaft. A toothed belt is mounted on the gear and meshes with the gear, tensioning wheel, and gear two in sequence. The vibratory feeder of the feeding assembly is a commercially available mechanism for arranging and feeding inductors. This is based on existing technology. Inductors arranged by the vibratory feeder enter the discharge frame and move within it. The inductors then move to the distribution plate, where receiving slots receive corresponding inductors. A motor drives a gear to rotate, which in turn drives a meshing toothed belt. This belt, in turn, drives a second gear on the other end of the gear. The second gear, mounted on a rotating shaft, rotates the distribution plate. The rotation of the distribution plate causes the receiving slots to sequentially receive inductors, moving them to the receiving frame on the other side. Once a certain number of inductors have entered the receiving frame, the distribution plate stops rotating, and the inductors are evenly arranged within the receiving frame. This design ensures the inductors are arranged and fed correctly.
[0013] Preferably, the transfer assembly includes a support frame, a transverse frame, and a second motor. The support frame has a U-shaped cross-section, and the upper end of the transverse frame is positioned above the unloading assembly. A sliding block is installed on the upper end of the support frame. The transverse frame also has a U-shaped cross-section and includes a top plate and two side plates, each mounted on opposite sides of the top plate. A sliding groove is provided on the top plate, which is slidably connected to the support frame through the engagement of the sliding block and the sliding groove. The second motor is mounted on the top plate, and a gear is mounted on its shaft. A rack is mounted on the support frame, and the gear meshes with the rack. The support frame of the transfer assembly is mounted on a workbench. The transverse frame slides on the support frame through the engagement of the sliding block and the sliding groove. The movement of the transverse frame is driven by the second motor on the top plate. The second motor, through the engagement of the gear and the rack, moves the transverse frame on the support frame. This design enables lateral movement.
[0014] Preferably, the corner assembly includes a corner shaft and a motor three. Both ends of the corner shaft are equipped with rotating shaft two. The corner shaft is rotatably connected to the side plate of the transverse frame via rotating shaft two. A gear four is mounted on one side of the rotating shaft two. The motor three is mounted on the side plate of the transverse frame, and a gear five is mounted on the motor shaft of the motor three. Gear four and gear five mesh. A corner plate is mounted on the corner shaft. The corner shaft of the corner assembly is mounted on the side plate of the transverse frame, and the corner shaft is rotatably connected to the side plate via rotating shaft two. The motor three is mounted on the side plate, and the meshing of gear four and gear five drives the corner shaft to rotate. The corner plate on the corner shaft facilitates the installation of the pick-and-place assembly. This design allows for adjustment of the pick-and-place assembly's angle.
[0015] Preferably, the pick-and-place assembly includes a pneumatic cylinder and a pick-and-place frame. The pneumatic cylinder is mounted on a corner plate, and its pneumatic end is connected to one side of the pick-and-place frame. The pick-and-place frame has a U-shaped cross-section, and a material handling groove is provided on the other side. A second pneumatic cylinder is mounted on the pick-and-place frame, with its pneumatic end penetrating one side of the frame and positioned inside. An electromagnet is mounted on the pneumatic end of the second pneumatic cylinder, and the electromagnet corresponds to the material handling groove. The pneumatic cylinder is mounted on the corner plate and pushes the pick-and-place frame to rise and fall. A magnetic strip is installed inside the U-shaped pick-and-place frame. The second pneumatic cylinder on the pick-and-place frame drives the magnetic strip to rise and fall. When the pick-and-place frame aligns with an inductor, the magnetic strip descends, attracting the inductor into the material handling groove. The material handling groove can restrict the orientation of the inductor, ensuring its neat arrangement. This design allows for the retrieval of inductors.
[0016] Preferably, a scraping assembly is installed on the workbench. The scraping assembly includes a pneumatic cylinder three, a lifting frame, and a scraper. The pneumatic cylinder three is mounted on the workbench, and its pneumatic end is connected to the lifting frame. A pneumatic cylinder four is mounted on the lifting frame, and its pneumatic end is connected to one side of the scraper. The other side of the scraper is placed in the tin plating bath. The tin plating bath contains molten tin. The top surface of the molten tin is prone to solidification due to temperature, which does not affect the tin plating process. To ensure the tin plating effect, the tin on the surface of the molten tin needs to be treated. Therefore, a scraping assembly corresponding to the molten tin bath is installed on the workbench. The pneumatic cylinder three drives the lifting frame to rise, and then the pneumatic cylinder four pushes the scraper from above the molten tin bath to the other end of the tin plating bath. Then, the pneumatic cylinder three retracts, and the lower part of the scraper enters the tin plating bath. The scraper is then pulled back by the pneumatic cylinder four, and the tin on the surface of the tin plating bath is scraped off. This design ensures the tin plating effect.
[0017] Preferably, the detection component includes an angle sensor. The dispensing tray has a measuring groove, and a mounting frame is installed on the worktable. The angle sensor is mounted on the mounting frame, with its lower end placed in the measuring groove and in contact with the dispensing tray. The detection component is used to detect the rotation angle of the dispensing tray, ensuring consistent material quantity each time. Therefore, the angle sensor is installed on the mounting frame, with its lower end placed in the measuring groove of the dispensing tray to ensure the accuracy of material dispensing. After the angle sensor detects that the dispensing tray has rotated to a fixed angle, it transmits an electrical signal to the control device, which then controls the motor to stop rotating. This design improves the accuracy of material dispensing.
[0018] The beneficial effects of this utility model are: it can clamp and tin-plate small I-beam inductors, ensure the inductors are arranged and fed, enable lateral movement, adjust the angle of the pick-and-place components, pick up the inductors, ensure the tin-plating effect, and improve the feeding accuracy. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of the feeding and unloading assembly;
[0021] Figure 3 yes Figure 1 A schematic diagram of the transfer component;
[0022] Figure 4 yes Figure 1 A schematic diagram of the structure of the loading and unloading component;
[0023] Figure 5 yes Figure 1 A schematic diagram of the scraper assembly.
[0024] In the diagram: 1. Workbench; 11. Soldering bath; 12. Tin plating bath; 2. Feeding assembly; 21. Vibratory feeder; 22. Discharge frame; 23. Distributor tray; 231. Receiving trough; 232. Measuring trough; 24. Receiving frame; 25. Rotating shaft one; 251. Gear two; 26. Motor one; 261. Gear one; 27. Toothed belt; 28. Tensioner wheel; 3. Transfer assembly; 31. Support frame; 32. Horizontal movement frame; 33. Motor II; 34. Sliding block I; 35. Top plate; 36. Side plate; 37. Sliding groove I; 38. Gear III; 39. Rack; 4. Corner assembly; 41. Corner shaft; 42. Motor III; 43. Shaft II; 44. Gear IV; 45. Gear V; 46. Corner plate; 5. Pick-up and place assembly; 51. Pneumatic cylinder I; 52. Pick-up and place frame; 53. Material handling trough; 54. Pneumatic cylinder II; 55. Magnetic strip; 6. Detection assembly; 61. Angle sensor; 62. Mounting bracket; 7. Scraper assembly; 71. Pneumatic cylinder III; 72. Lifting frame; 73. Scraper frame; 74. Pneumatic cylinder IV. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] like Figure 1 In the illustrated embodiment, a pin tinning device for an I-type inductor includes:
[0027] Workbench 1, on which a soldering pool 11 and a tin plating pool 12 are installed;
[0028] The unloading component 2 is installed on the workbench 1. The unloading component 2 corresponds to the soldering pool 11 and the tin plating pool 12. The unloading component 2 is equipped with a detection component 6.
[0029] Transfer assembly 3 is mounted on workbench 1 and positioned above tin plating bath 12;
[0030] Corner assembly 4 is mounted on transfer assembly 3;
[0031] Pick-and-place component 5 is installed on corner component 4 and corresponds to unloading component 2.
[0032] like Figure 2As shown, the feeding assembly 2 includes a vibratory feeder 21, a discharge frame 22, a distribution plate 23, and a receiving frame 24. The discharge port of the vibratory feeder 21 corresponds to one end of the discharge frame 22. The discharge frame 22 is mounted on the workbench 1. A rotating shaft 25 is mounted on the bottom surface of the distribution plate 23. The distribution plate 23 is rotatably connected to the workbench 1 through the rotating shaft 25. The distribution plate 23 is provided with several circumferentially distributed receiving slots 231. One side of the distribution plate 23 is connected to the discharge frame 24. Corresponding to 2, the other end of the material distribution plate 23 corresponds to the receiving frame 24. A motor 26 is installed on the workbench 1. A gear 261 is installed on the motor shaft of the motor 26. A tension wheel 28 is installed on the workbench 1. The tension wheel 28 is rotatably connected to the workbench 1. A gear 251 is installed on the rotating shaft 25. A toothed belt 27 is provided on the gear 261. The toothed belt 27 meshes with the gear 261, the tension wheel 28 and the gear 251 in sequence.
[0033] like Figure 3 As shown, the transfer assembly 3 includes a support frame 31, a transverse frame 32, and a second motor 33. The support frame 31 has a U-shaped cross-section. The upper end of the transverse frame 32 is positioned above the unloading assembly 2. A sliding block 34 is installed on the upper end of the support frame 31. The transverse frame 32 has a U-shaped cross-section and includes a top plate 35 and side plates 36. Two side plates 36 are provided and are respectively installed on both sides of the top plate 35. A sliding groove 37 is provided on the top plate 35. The top plate 35 is slidably connected to the support frame 31 through the cooperation of the sliding block 34 and the sliding groove 37. The second motor 33 is installed on the top plate 35. A gear 38 is installed on the motor shaft of the second motor 33. A rack 39 is installed on the support frame 31. The gear 38 meshes with the rack 39.
[0034] The corner assembly 4 includes a corner shaft 41 and a motor 42. Both ends of the corner shaft 41 are equipped with a rotating shaft 43. The corner shaft 41 is rotatably connected to the side plate 36 of the transverse frame 32 through the rotating shaft 43. A gear 44 is installed on the rotating shaft 43 on one side of the corner shaft 41. The motor 42 is installed on the side plate 36 of the transverse frame 32. A gear 45 is installed on the motor shaft of the motor 42. The gear 44 meshes with the gear 5 45. A corner plate 46 is installed on the corner shaft 41.
[0035] like Figure 4 As shown, the pick-and-place assembly 5 includes a pneumatic cylinder 51 and a pick-and-place frame 52. The pneumatic cylinder 51 is mounted on the corner plate 46. The pneumatic end of the pneumatic cylinder 51 is connected to one side of the pick-and-place frame 52. The cross-sectional shape of the pick-and-place frame 52 is U-shaped. The other side of the pick-and-place frame 52 is provided with a material handling trough 53. A pneumatic cylinder 54 is mounted on the pick-and-place frame 52. The pneumatic end of the pneumatic cylinder 54 passes through one side of the pick-and-place frame 52 and is placed inside the pick-and-place frame 52. A magnetic strip 55 is installed on the pneumatic end of the pneumatic cylinder 54. The magnetic strip 55 corresponds to the material handling trough 53.
[0036] like Figure 5As shown, a scraping assembly 7 is installed on the workbench 1. The scraping assembly 7 includes a pneumatic cylinder 71, a lifting frame 72, and a scraping frame 73. The pneumatic cylinder 71 is installed on the workbench 1, and the pneumatic end of the pneumatic cylinder 71 is connected to the lifting frame 72. A pneumatic cylinder 74 is installed on the lifting frame 72, and the pneumatic end of the pneumatic cylinder 74 is connected to one side of the scraping frame 73. The other side of the scraping frame 73 is placed in the tin plating bath 12.
[0037] The detection component 6 includes an angle sensor 61, a measuring groove 232 on the dispensing tray 23, and a mounting bracket 62 on the worktable 1. The angle sensor 61 is mounted on the mounting bracket 62, and the lower end of the angle sensor 61 is placed in the measuring groove 232 and in contact with the dispensing tray 23.
[0038] During the tin plating of inductor leads, the inductors are arranged and fed in the vibratory feeder 21, and then enter the discharge frame 22 through the discharge port. Within the discharge frame 22, the inductors move to the distribution plate 23 and enter the receiving slot 231. At this time, motor 26 rotates, driving gear 261 to rotate. Gear 261, through the toothed belt 27, drives gear 251 on the rotating shaft 25 to rotate, which in turn drives the distribution plate 23 to rotate. The rotation of the distribution plate 23 transfers the inductors to the receiving frame 24 for arrangement. During the rotation of the distribution plate 23, the lower end of the angle sensor 61 is placed in the measuring slot 232 to detect the rotation angle of the distribution plate 23, ensuring accurate rotation angle and thus guaranteeing the stability of the feeding process.
[0039] After discharge, motor 2 42 passes through, and through the meshing of gear 38 and rack 39, drives the transverse frame 32 to move along sliding block 34 on the support frame 31, aligning the corner assembly 4 mounted on the transverse frame 32 with the receiving frame 24. Then, motor 3 42 rotates, and through the rotation of gear 44 and gear 5 45, drives the corner shaft 41 to rotate, which then rotates the pick-and-place assembly 5 mounted on the corner plate 41 to a vertical position. Then, pneumatic cylinder 1 51 actuates, pushing the pick-and-place frame 52 down to ensure that the pick-and-place frame 52 aligns with the upper end of the inductor. Then, pneumatic cylinder 2 54 pushes the magnetic strip 55 down, attracting the inductor into the material handling trough 3, and picking up the inductor in the receiving frame 24.
[0040] After the inductor is picked up, the inductor is lifted away from the receiving frame 24 by the pneumatic cylinder 51. Then, the inductor is moved by the movement of the transverse frame 32 to correspond to the solder bath 11 and the tin plating bath 12 in sequence. After corresponding to them, the inductor is lowered by the pneumatic cylinder 51 to process the pin.
[0041] During the tin plating process, the surface of the tin plating bath 12 needs to be scraped. The lifting frame 72 is raised by the pneumatic cylinder 3 54, and then the pneumatic cylinder 4 74 pushes the scraper 73 from above the tin plating bath 12 to the other end of the tin plating bath 12. Then the pneumatic cylinder 3 71 retracts, and the scraper 73 enters the tin plating bath 12 from below. Then the scraper 73 is pulled back by the pneumatic cylinder 4 74, and then the tin on the surface of the tin plating bath 12 is scraped.
Claims
1. A device for tin plating the leads of an I-type inductor, characterized in that it comprises: Workbench (1), on which a soldering pool (11) and a tin plating pool (12) are installed. The unloading assembly (2) is installed on the workbench (1). The unloading assembly (2) corresponds to the soldering pool (11) and the tin plating pool (12). The unloading assembly (2) is equipped with a detection assembly (6). The transfer assembly (3) is mounted on the workbench (1) and placed above the tin plating bath (12); A corner assembly (4) is mounted on a transfer assembly (3); Pick-and-place assembly (5), which is mounted on corner assembly (4) and corresponds to unloading assembly (2).
2. The pin tinning device for an I-type inductor according to claim 1, characterized in that, The feeding assembly (2) includes a vibratory feeder (21), a discharge frame (22), a distribution plate (23), and a receiving frame (24). The discharge port of the vibratory feeder (21) corresponds to one end of the discharge frame (22). The discharge frame (22) is installed on the workbench (1). A rotating shaft (25) is installed on the bottom surface of the distribution plate (23). The distribution plate (23) is rotatably connected to the workbench (1) through the rotating shaft (25). The distribution plate (23) is provided with several circumferentially distributed receiving slots (231). One side of the distribution plate (23) corresponds to the discharge frame (22). The other end of the material distribution plate (23) corresponds to the receiving frame (24). A motor (26) is installed on the workbench (1). A gear (261) is installed on the motor shaft of the motor (26). A tension wheel (28) is installed on the workbench (1). The tension wheel (28) is rotatably connected to the workbench (1). A gear (251) is installed on the rotating shaft (25). A toothed belt (27) is provided on the gear (261). The toothed belt (27) meshes with the gear (261), the tension wheel (28), and the gear (251) in sequence.
3. The pin tinning device for an I-shaped inductor according to claim 1, characterized in that, The transfer assembly (3) includes a support frame (31), a transverse frame (32), and a second motor (33). The support frame (31) has a U-shaped cross-section. The upper end of the transverse frame (32) is positioned above the unloading assembly (2). A sliding block (34) is installed on the upper end of the support frame (31). The transverse frame (32) has a U-shaped cross-section and includes a top plate (35) and side plates (36). Two side plates (36) are provided and are respectively installed on... Installed on both sides of the top plate (35), the top plate (35) is provided with a sliding groove (37), the top plate (35) is slidably connected to the support frame (31) through the cooperation of the sliding block (34) and the sliding groove (37), the motor (33) is installed on the top plate (35), the motor shaft of the motor (33) is equipped with a gear (38), the support frame (31) is equipped with a rack (39), and the gear (38) meshes with the rack (39).
4. The pin tinning device for an I-type inductor according to claim 3, characterized in that, The corner assembly (4) includes a corner shaft (41) and a motor (42). Both ends of the corner shaft (41) are equipped with a rotating shaft (43). The corner shaft (41) is rotatably connected to the side plate (36) of the transverse frame (32) through the rotating shaft (43). A gear (44) is installed on the rotating shaft (43) on one side of the corner shaft (41). The motor (42) is installed on the side plate (36) of the transverse frame (32). A gear (45) is installed on the motor shaft of the motor (42). The gear (44) meshes with the gear (45). A corner plate (46) is installed on the corner shaft (41).
5. The pin tinning device for an I-type inductor according to claim 4, characterized in that, The pick-and-place assembly (5) includes a pneumatic cylinder (51) and a pick-and-place frame (52). The pneumatic cylinder (51) is installed on the corner plate (46). The pneumatic end of the pneumatic cylinder (51) is connected to one side of the pick-and-place frame (52). The cross-sectional shape of the pick-and-place frame (52) is U-shaped. The other side of the pick-and-place frame (52) is provided with a material feeding groove (53). A pneumatic cylinder (54) is installed on the pick-and-place frame (52). The pneumatic end of the pneumatic cylinder (54) passes through one side of the pick-and-place frame (52) and is placed inside the pick-and-place frame (52). A magnetic strip (55) is installed on the pneumatic end of the pneumatic cylinder (54). The magnetic strip (55) corresponds to the material feeding groove (53).
6. The pin tinning device for an I-type inductor according to claim 1, characterized in that, The workbench (1) is equipped with a scraping assembly (7), which includes a pneumatic cylinder three (71), a lifting frame (72) and a scraping frame (73). The pneumatic cylinder three (71) is installed on the workbench (1), and the pneumatic end of the pneumatic cylinder three (71) is connected to the lifting frame (72). The lifting frame (72) is equipped with a pneumatic cylinder four (74), and the pneumatic end of the pneumatic cylinder four (74) is connected to one side of the scraping frame (73). The other side of the scraping frame (73) is placed in the tin plating bath (12).
7. The pin tinning device for an I-type inductor according to claim 2, characterized in that, The detection component (6) includes an angle sensor (61), the material distribution plate (23) is provided with a measuring groove (232), the workbench (1) is equipped with a mounting bracket (62), the angle sensor (61) is mounted on the mounting bracket (62), and the lower end of the angle sensor (61) is placed in the measuring groove (232) and in contact with the material distribution plate (23).