Loudspeaker voice coil tinning device

Abstract

The utility model relates to the field of loudspeaker manufacturing, in particular to a loudspeaker voice coil tinning device which comprises a bottom plate, a supporting table, a supporting seat, a servo motor, an unfilled corner gear, a gear disc, a voice coil frame and a laser positioner, the supporting table is arranged in the center of the bottom plate, and the servo motor is installed on the side face of the upper portion of the supporting table. An output shaft of the servo motor is connected with an unfilled-corner gear, the unfilled-corner gear is meshed with a gear disc installed on the top of the supporting table, a plurality of voice coil frames are evenly distributed on the top of the gear disc, and a laser positioner is arranged on the front side of the top of the supporting table. The loudspeaker voice coil tinning device integrates tinning and wire welding functions, continuous processing of lead wires is achieved, automatic positioning and moving operation of voice coils is achieved through automatic control elements such as a laser positioner, a servo motor and an air cylinder, accuracy and consistency of each step are ensured, the production efficiency is greatly improved through the design, and the production cost is reduced. Manual intervention is reduced, and the large-scale production requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker manufacturing, and in particular to a loudspeaker voice coil tin plating device. Background Technology

[0002] Loudspeakers are an indispensable component of modern audio systems, and their performance directly affects the audio playback effect. The voice coil, as one of the key components of a loudspeaker, is responsible for converting electrical signals into mechanical vibrations, thereby generating sound. It consists of main components such as a frame, enameled wire, reinforcing paper, and cotton thread. The cotton thread is made of thin copper or silver alloy sheets and is mainly used for the lead wire of the voice coil. In order to improve the conductivity and corrosion resistance of the cotton thread, enhance the stability of the voice coil, and extend its service life, the cotton thread usually needs to be tin-plated during use.

[0003] Currently, in the manufacturing process of voice coils, the tinning and soldering processes of the nylon wire are usually carried out separately. First, the nylon wire needs to be tinned, and then it is manually or semi-automatically soldered onto the voice coil. This separate process is not only time-consuming and inefficient, but the soldering operation is also greatly affected by human intervention, resulting in unstable soldering quality and affecting the overall performance of the voice coil.

[0004] Therefore, there is an urgent need to provide a speaker voice coil tinning device that integrates tinning and wire bonding functions to achieve continuous processing of nylon wire, thereby improving production efficiency. Utility Model Content

[0005] In order to overcome the problems of low efficiency and unstable quality caused by the separation of tin plating and wire bonding processes in the existing technology, this utility model provides a loudspeaker voice coil tin plating device.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a speaker voice coil tinning device, comprising a base plate, a support platform, a support base, a servo motor, a notched gear, a gear disk, a voice coil holder, a laser positioner, a tinning section, and a wire bonding section. The base plate has a support platform at its center, and a servo motor is mounted on the upper side of the support platform. The output shaft of the servo motor is connected to the notched gear, which meshes with the gear disk mounted on the top of the support platform. Multiple voice coil holders are evenly distributed on the top of the gear disk. A laser positioner is located on the front side of the top of the support platform. The tinning section consists of a loading box, an anti-slip rubber sleeve, a tin-dipping frame, a drive motor, a rotating rod, a snap-fit ​​plate, an isolation plate, and a wire reel. The tin-dipping frame is located on the top right side of the base plate, and an isolation plate is installed inside the tin-dipping frame. The isolation plate divides the interior of the tin-dipping frame into a large cavity and a small cavity. The small cavity is used to store molten tin, and the isolation plate has two symmetrically distributed feed holes. The large cavity... The frame is equipped with symmetrically distributed rotating rods, and symmetrically distributed drive motors are located outside the soldering frame. The output shaft of the drive motor is connected to one end of the rotating rod, and a clamping plate is attached to the other end of the rotating rod. A wire reel is sleeved on the rotating rod. The wire bonding section consists of a first mounting frame, a first cylinder, a wire bonding machine, wire rollers, wire tubes, a mounting plate, a clamping block, a guide groove, a second cylinder, and pneumatic scissors. The top of the base plate is equipped with a support seat located to the left of the soldering frame. The support seat is equipped with symmetrically distributed first cylinders, and a wire bonding machine is mounted on the movable rod of the first cylinder. The first mounting frame is fixed in the middle of the support seat, and a second cylinder is mounted on the first mounting frame. The first mounting frame is equipped with a guide groove, and a mounting plate is slidably mounted on the guide groove through a clamping block. The mounting plate is connected to the movable rod of the second cylinder. A symmetrically distributed wire tube is located on one side of the mounting plate, and a corresponding wire roller is located on the other side. In addition, a symmetrically distributed pneumatic scissors is mounted on the side of the mounting plate.

[0007] Furthermore, the voice coil frame is a detachable design.

[0008] Furthermore, it also includes an anti-overflow ring, which is provided inside the feed hole.

[0009] Furthermore, it also includes an exhaust device, which includes a support frame, a ventilation pipe and a fan. The support frame is fixed to the center of the top of the support platform, and the ventilation pipe is installed on the support frame. The lower end of the ventilation pipe is aligned with the tin-plated area, and the upper end of the ventilation pipe is installed inside the ventilation pipe.

[0010] Furthermore, it also includes a material handling device, which comprises a support frame, a ventilation pipe, a fan, a second mounting frame, a gripper cylinder, a third cylinder, a slider, guide rails, and a cam rod. The second mounting frame is fixed to the base plate on the right side of the support platform. The third cylinder is mounted on the upper part of the second mounting frame. A symmetrically distributed guide rail is provided on one side of the upper part of the second mounting frame. A slider is slidably mounted on the guide rails. The slider is connected to the movable rod of the third cylinder. A cam rod rotates through the center of the slider. An S-shaped cam groove is provided on the upper part of the second mounting frame near the cam rod. One end of the cam rod moves on the S-shaped cam groove, and the other end of the cam rod is mounted with a gripper cylinder.

[0011] Furthermore, it also includes a loading box, which is located on the top of the base plate behind the mounting frame.

[0012] Furthermore, it also includes an anti-slip rubber sleeve, which is fitted onto the surface of the voice coil frame.

[0013] Compared with the prior art, the present invention has the following technical effects: 1. The speaker voice coil tinning device integrates tinning and wire bonding functions, realizes continuous processing of nylon wire, and realizes automatic positioning and movement operation of voice coil through automated control components such as laser positioner, servo motor, and cylinder, ensuring the accuracy and consistency of each step. This design greatly improves production efficiency, reduces manual intervention, and is suitable for large-scale production needs.

[0014] 2. By equipping it with ventilation ducts and fans, it can effectively remove harmful gases generated during the wire bonding process, ensuring the safety and cleanliness of the working environment and protecting the health of operators.

[0015] 3. Through the coordinated operation of the second mounting bracket, gripper cylinder, third cylinder, slider, guide rail, cam rod and S-shaped cam groove, the voice coil is picked up and discharged, which further improves the automation level of the device, reduces manual operation, and ensures the continuity and stability of the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the support base, servo motor, and voice coil frame of this utility model.

[0019] Figure 4 This is a three-dimensional cross-sectional view of the welded part of this utility model.

[0020] Figure 5 This is a three-dimensional sectional view of the exhaust device of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the material handling device and the material loading box of this utility model.

[0022] Figure 7 This is a three-dimensional structural diagram of the material handling device of this utility model.

[0023] Figure 8 This is a three-dimensional structural diagram of the tin-plated part of this utility model.

[0024] Figure 9 This is a partial three-dimensional cross-sectional view of the tin-plated portion of this utility model.

[0025] Figure 10 This is a partial three-dimensional structural diagram of the isolation plate of this utility model.

[0026] In the attached diagrams: 1: Base plate, 101: Support platform, 102: Support base, 2: Servo motor, 3: Notched gear, 4: Gear disk, 5: Voice coil frame, 6: Laser positioner, 7: First mounting bracket, 8: First cylinder, 9: Wire bonding machine, 10: Wire roller, 11: Wire conduit, 12: Mounting plate, 13: Clamping block, 14: Guide groove, 15: Second cylinder, 16: Pneumatic shears, 17: Support frame, 18: Ventilation pipe, 19: Fan, 20: Second mounting bracket, 21: Grip cylinder, 22: Third cylinder, 23: Slider, 24: Guide rail, 25: Cam rod, 26: S-shaped cam groove, 27: Loading box, 28: Anti-slip rubber sleeve, 29: Soldering frame, 30: Drive motor, 31: Rotating rod, 32: Clamping plate, 33: Isolation plate, 34: Anti-overflow ring, 35: Wire reel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: Please refer to Figures 1-3A speaker voice coil tinning device includes a base plate 1, a support platform 101, a support base 102, a servo motor 2, a notched gear 3, a gear disk 4, a voice coil holder 5, a laser positioner 6, an anti-slip rubber sleeve 28, a tinning section, and a wire bonding section. The support platform 101 is located at the center of the base plate 1. The servo motor 2 is mounted on the upper left side of the support platform 101. The output shaft of the servo motor 2 is connected to the notched gear 3, which meshes with the gear disk 4 mounted on the top of the support platform 101. Through the special design of the notched gear 3, the gear… The gear disk 4 can rotate intermittently. Eight voice coil holders 5 are evenly distributed on the top of the gear disk 4 for placing the voice coils. The voice coil holders 5 are detachable for easy replacement according to different sizes of voice coils. The surface of the voice coil holders 5 is also covered with anti-slip rubber sleeves 28 to increase the friction between the voice coil and the voice coil holders 5 and prevent the voice coil from sliding or shifting during the welding process. A laser positioner 6 is provided on the front side of the top of the support platform 101. When placing the voice coil, the laser accurately positions the voice coil to avoid placement deviation and ensure the accuracy of subsequent wire bonding.

[0029] Please see Figures 8-10 The tin plating section consists of a loading box 27, an anti-slip rubber sleeve 28, a tin-plating frame 29, a drive motor 30, a rotating rod 31, a snap-fit ​​plate 32, an isolation plate 33, an anti-overflow ring 34, and a wire reel 35. The tin-plating frame 29 is located on the top right side of the base plate 1. An isolation plate 33 is installed inside the tin-plating frame 29, dividing the interior of the tin-plating frame 29 into a large cavity and a small cavity. The small cavity is used to store molten tin for tin plating. The isolation plate 33 has two symmetrically distributed feed holes in the middle for the passage of nylon wire. An anti-overflow ring 34 is provided inside the feed hole. The design of the anti-overflow ring 34 can effectively prevent the molten solder from overflowing when the filament wire passes through the feed hole, keep the molten solder in the small cavity stable, and avoid contaminating the large cavity and the external environment. The large cavity is provided with rotating rods 31 that are symmetrically distributed vertically. The soldering frame 29 is provided with drive motors 30 that are symmetrically distributed vertically. The output shaft of the drive motor 30 is connected to one end of the corresponding rotating rod 31. The other end of the rotating rod 31 is clamped with a clamping plate 32. A wire spool 35 is sleeved on the rotating rod 31 for winding the filament wire.

[0030] Please see Figure 3 and Figure 4The wire bonding section comprises a first mounting bracket 7, a first cylinder 8, a wire bonding machine 9, a wire roller 10, a wire conduit 11, a mounting plate 12, a clamping block 13, a guide groove 14, a second cylinder 15, and a pneumatic scissors 16. The top of the base plate 1 is provided with a support base 102 located to the left of the soldering frame 29. The support base 102 is equipped with symmetrically distributed first cylinders 8. The wire bonding machine 9 is mounted on the movable rod of the first cylinder 8. The first mounting bracket 7 is fixed in the middle of the support base 102. The second cylinder 15 is mounted on the first mounting bracket 7. The first mounting bracket 7 is provided with a guide groove 14. A mounting plate 12 is slidably mounted on the guide groove 14 via a locking block 13. The mounting plate 12 is connected to the movable rod of the second cylinder 15, and the second cylinder 15 drives the mounting plate 12 to move along the guide groove to adjust its position. One side of the mounting plate 12 is provided with symmetrically distributed guide tubes 11 to guide the tin wire to the designated position, and the other side is provided with corresponding guide rollers 10 to assist the smooth movement of the tin wire. In addition, the side of the mounting plate 12 is equipped with symmetrically distributed pneumatic scissors 16. After the tin plating operation is completed, these pneumatic scissors 16 will automatically cut the tin wire to ensure the smooth start of the next work cycle.

[0031] In use, the device first loads a spool 35 pre-wound with nylon thread into the rotating rod 31. Then, two drive motors 30 are started, driving the rotating rod 31 to rotate via their output shafts. This causes the nylon thread on the spool 35 to gradually be released. The nylon thread passes through the feed hole into a small cavity, where it is fully immersed in molten solder during its movement, ensuring even adhesion and tinning. After tinning, the nylon thread is guided to the soldering point via the guide tube 11 for soldering. During this process, the guide roller 10 assists in the smooth movement of the nylon thread, ensuring its smooth delivery to the soldering point. Simultaneously, the voice coil of the wire to be soldered is placed on the voice coil holder 5, and the laser positioner 6 precisely positions the voice coil for soldering. Then, the servo motor 2 is started, and the wire is fed through its input tube... The output shaft drives the notched gear 3 to rotate. Due to the design of the notched gear 3, it meshes intermittently with the gear disk 4, allowing the gear disk 4 to rotate at a predetermined angle. After each rotation, a new voice coil carrier 5 is brought to the welding station. When the voice coil reaches the welding station, the two first cylinders 8 operate simultaneously, pushing the two wire bonding machines 9 inward until the heads of the wire bonding machines 9 contact the welding points of the voice coil. The wire bonding machines 9 weld the nylon wire to the welding points of the voice coil, achieving double-sided wire bonding. After the wire bonding is completed, the pneumatic scissors 16 operate to quickly and accurately cut off the excess nylon wire. Then, the first cylinders 8 retract, lifting the wire bonding machines 9 back to their initial position to prepare for processing the next voice coil. The gear disk 4 continues to rotate at a predetermined angle, bringing the next voice coil to be processed to the wire bonding station, and repeating the above steps.

[0032] Example 2: Based on Example 1, please refer to... Figure 5It also includes an exhaust device, which includes a support frame 17, a ventilation pipe 18 and a fan 19. The support frame 17 is fixed to the center of the top of the support platform 101. The ventilation pipe 18 is installed on the support frame 17. The lower end of the ventilation pipe 18 is aligned with the tin-plated area. The upper end of the ventilation pipe 18 is installed inside the ventilation pipe 18. The fan 19 is used to exhaust harmful gases in the working area.

[0033] When the device is started, the fan 19 at the upper end of the ventilation duct 18 also starts to work. The airflow generated by the fan 19 is guided to the welding area through the ventilation duct 18, forming an effective air circulation path. The fan 19 draws out the harmful gases generated during the welding process from the welding area and discharges them to the external environment through the ventilation duct 18. At the same time, the airflow carries away the heat from the welding area, helping to reduce the temperature and prevent overheating. The fan 19 continues to run to ensure fresh air in the working area, reduce smoke and odors, and prevent the accumulation of pollutants.

[0034] Please see Figure 6 and Figure 7 It also includes a material handling device, which comprises a support frame 17, a ventilation pipe 18, a fan 19, a second mounting frame 20, a gripper cylinder 21, a third cylinder 22, a slider 23, a guide rail 24, a cam rod 25, and a third cylinder 22. The second mounting frame 20, located on the right side of the support platform 101, is fixed to the base plate 1. The third cylinder 22 is mounted on the upper part of the second mounting frame 20. A guide rail 24, symmetrically distributed vertically, is provided on one side of the upper part of the second mounting frame 20. A slider 23 is slidably mounted on the guide rail 24. The slider 23 is connected to the movable rod of the third cylinder 22, and is driven by the third cylinder 22 to move along the guide rail. The track 24 moves, and the center position of the slider 23 rotates through the cam rod 25. The upper part of the second mounting bracket 20 is provided with an S-shaped cam groove 26 near the cam rod 25. One end of the cam rod 25 moves on the S-shaped cam groove 26, and the other end of the cam rod 25 is equipped with a gripper cylinder 21 for gripping the voice coil after the tin-plating wire bonding is completed. When the third cylinder 22 controls the slider 23 to move forward and backward, the cam rod 25 moves and rotates along the S-shaped cam groove 26, realizing the flipping and material picking of the gripper cylinder 21. The top of the base plate 1 is provided with a loading box 27 located on the rear side of the mounting bracket for collecting the voice coil after the wire bonding is completed.

[0035] The gear disk 4 rotates to move the wire-bonded voice coil to the gripper cylinder 21. The gripper cylinder 21 starts and grabs the wire-bonded voice coil. After the gripper cylinder 21 grabs the voice coil, the movable rod of the third cylinder 22 retracts, pulling the slider 23 to move backward along the guide rail 24. One end of the cam rod 25 moves in the opposite direction in the S-shaped cam groove 26. As the slider 23 moves backward, the cam rod 25 moves along the opposite trajectory in the S-shaped cam groove 26 and rotates, causing the gripper cylinder 21 to flip downward and release the voice coil. The wire-bonded voice coil falls into the loading box 27, completing the material picking and unloading action in one go.

[0036] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A speaker voice coil tinning device, comprising a base plate (1), a support table (101), a support seat (102), a servo motor (2), a missing angle gear (3), a gear disc (4), a voice coil frame (5) and a laser positioner (6), a support table (101) is arranged at the center of the base plate (1), a servo motor (2) is mounted on the upper side of the support table (101), a missing angle gear (3) is connected to the output shaft of the servo motor (2), the missing angle gear (3) is engaged with the gear disc (4) mounted on the top of the support table (101), a plurality of voice coil frames (5) are uniformly distributed on the top of the gear disc (4), and a laser positioner (6) is arranged on the front side of the top of the support table (101). characterized in that It also includes a tinning part and a wire welding part, the tinning part is composed of a charging box (27), an anti-skid rubber sleeve (28), a tinning frame (29), a driving motor (30), a rotating rod (31), a clamping plate (32), a partition plate (33) and a wire reel (35), the tinning frame (29) is arranged on the right side of the top of the base plate (1), the tinning frame (29) is internally provided with a partition plate (33), the partition plate (33) divides the inside of the tinning frame (29) into a large cavity and a small cavity, wherein the small cavity is used for storing tin liquid, and the partition plate (33) is provided with two symmetrical feeding holes, and the large cavity is internally provided with two symmetrical rotating rods (31), the tinning frame (29) is externally provided with two symmetrical driving motors (30), the output shaft of the driving motor (30) is connected with one end of the rotating rod (31), the other end of the rotating rod (31) is clamped with the clamping plate (32), and the rotating rod (31) is externally provided with the wire reel (35). The wire welding part is composed of a first mounting frame (7), a first air cylinder (8), a wire welding machine (9), a wire guide roller (10), a wire guide tube (11), a mounting plate (12), a clamping block (13), a guide groove (14), a second air cylinder (15) and a pneumatic scissors (16), the support seat (102) is arranged on the left side of the tinning frame (29) on the top of the base plate (1), the first air cylinder (8) is symmetrically mounted on the support seat (102), the wire welding machine (9) is mounted on the movable rod of the first air cylinder (8), the first mounting frame (7) is fixedly arranged on the middle of the support seat (102), the second air cylinder (15) is mounted on the first mounting frame (7), the guide groove (14) is arranged on the first mounting frame (7), the mounting plate (12) is slidably mounted on the guide groove (14) through the clamping block (13), the mounting plate (12) is connected with the movable rod of the second air cylinder (15), the wire guide tube (11) is symmetrically arranged on one side of the mounting plate (12), the corresponding wire guide roller (10) is arranged on the other side of the mounting plate (12), and the pneumatic scissors (16) is symmetrically mounted on the side of the mounting plate (12).

2. The speaker voice coil tinning device of claim 1, wherein, The voice coil frame (5) is designed to be detachable.

3. The speaker voice coil tinning device of claim 2, wherein, The feeding hole is provided with a spill-proof ring (34). The feeding hole is provided with a spill-proof ring (34).

4. The speaker voice coil tinning device of claim 3, wherein, Also include exhaust device, the exhaust device includes support frame (17), ventilation pipe (18) and fan (19), the support frame (17) is fixedly connected to the top center position of support table (101), ventilation pipe (18) is installed on the support frame (17), the lower end of ventilation pipe (18) is aligned with tinning area, fan (19) is installed on the inside upper end of ventilation pipe (18).

5. A speaker voice coil tinning device as claimed in claim 4, wherein, Also include taking material device, the taking material device includes support frame (17), ventilation pipe (18), fan (19), second mounting bracket (20), grab hand cylinder (21), third cylinder (22), sliding block (23), guide rail (24) and cam lever (25), the second mounting bracket (20) of the bottom plate (1) is fixedly connected to the right side of support table (101), the third cylinder (22) is installed on the upper portion of second mounting bracket (20), the guide rail (24) is set on the one side of the upper portion of second mounting bracket (20) and is symmetrically distributed, the sliding block (23) is commonly arranged on the guide rail (24) and slides, the sliding block (23) is connected with the movable rod of third cylinder (22), the cam lever (25) is rotatably penetrated through the center position of sliding block (23), the S-shaped cam groove (26) is set on the one side of the upper portion of second mounting bracket (20) and is close to cam lever (25), one end of cam lever (25) moves on S-shaped cam groove (26), grab hand cylinder (21) is installed on the other end of cam lever (25).

6. A speaker voice coil tinning device as claimed in claim 5, wherein, Also include loading box (27), the loading box (27) is set on the rear side of mounting bracket on the top of bottom plate (1).

7. A loudspeaker voice coil tinning apparatus as claimed in claim 6, wherein, Also include anti-skid rubber sleeve (28), the surface of voice coil frame (5) is sleeved with anti-skid rubber sleeve (28). Also include anti-skid rubber sleeve (28), the surface of voice coil frame (5) is sleeved with anti-skid rubber sleeve (28).

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