A magnetizing device for a loudspeaker production line

Abstract

This utility model relates to the field of electroacoustic device manufacturing technology, and in particular discloses a magnetizing device for a speaker production line. The device includes a frame, a rotary transfer mechanism mounted on the frame, a magnetizing table, a robot gripping unit, and a control unit. The control unit is electrically connected to both the rotary transfer mechanism and the robot gripping unit. The rotary transfer mechanism includes a rotary cylinder, a support arm, and a first gripper assembly. The support arm is mounted on the output shaft of the rotary cylinder, and the first gripper assembly is located at one end of the support arm. The first gripper assembly is used to grip the magnetized component and, driven by the rotary cylinder, transfer it to the magnetizing table. The robot gripping unit is used to grip the magnetized component after magnetization on the magnetizing table and assemble it into the speaker housing. This device, through automated and coordinated control, achieves precise picking and placing, magnetization, and assembly of the magnetized component, significantly improving speaker production efficiency and product consistency, and reducing labor costs and errors.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic device manufacturing technology, and in particular discloses a magnetizing device for a loudspeaker production line. Background Technology

[0002] In traditional speaker manufacturing processes, magnetization and assembly typically rely on manual operation or multiple independent machines in stages, resulting in low production efficiency, poor positioning consistency, high labor intensity, and poor coordination between different machines. In particular, the transfer and precise positioning of magnets after magnetization require extremely high precision; manual operation is prone to errors, affecting the performance and yield of the final product. Existing equipment often has limited functionality and lacks integrated control, making it difficult to achieve high-speed, continuous, automated production. Furthermore, ordinary mechanical limit methods are inconvenient to adjust and prone to damage from hard collisions, and clamping mechanisms struggle to stably grip workpieces of different sizes. Therefore, the industry urgently needs a highly integrated, precise, flexible, and highly reliable automated magnetization and assembly system to address these pain points and meet the comprehensive requirements of modern manufacturing for efficiency, quality, and flexibility. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a magnetizing device for a speaker production line.

[0004] To achieve the above objectives, this utility model provides a magnetizing device for a speaker production line, comprising a frame, a rotary transfer mechanism mounted on the frame, a magnetizing table, a robot gripping unit, and a control unit. The control unit is electrically connected to the rotary transfer mechanism and the robot gripping unit. The rotary transfer mechanism includes a rotary cylinder, a support arm, and a first gripper assembly. The support arm is mounted on the output shaft of the rotary cylinder, and the first gripper assembly is located at one end of the support arm. The first gripper assembly is used to grip the magnetized component and transfer it to the magnetizing table via the drive of the rotary cylinder. The robot gripping unit is used to grip the magnetized component after it has been magnetized by the magnetizing table and assemble it into the speaker housing.

[0005] By integrating a control unit to coordinate the movements of the rotating transfer mechanism and the robotic gripper unit, automated continuous operation of magnetization and assembly is achieved, significantly improving the overall efficiency and consistency of the speaker production line. A rotary cylinder drives the carrier arm for rotating transfer, resulting in a compact structure and rapid operation, reducing time delays and positioning errors caused by traditional manual or segmented operations. The first gripper assembly is dedicated to picking up and placing magnetized components, precisely corresponding to the magnetization table to ensure a stable and reliable magnetization process. The robotic gripper unit handles subsequent assembly, achieving a seamless transition from magnetization to assembly. This not only reduces labor intensity but also significantly minimizes product quality issues caused by human intervention, making it particularly suitable for high-volume, large-scale production needs.

[0006] Furthermore, the support arm is provided with a lifting cylinder for reciprocating the first gripper assembly and a driving cylinder for reciprocating the lifting cylinder along the support arm, and the reciprocating direction of the lifting cylinder and the reciprocating direction of the first gripper assembly are arranged to intersect.

[0007] By incorporating a lifting cylinder and a drive cylinder, and ensuring their movements intersect, the first gripper assembly achieves complex and precise multi-degree-of-freedom motion within space. The lifting cylinder controls the vertical lifting of the gripper, adapting to material handling requirements at different heights, while the drive cylinder allows the entire lifting mechanism to slide horizontally along the support arm, greatly expanding the gripping range and flexibility. This composite motion design with intersecting directions enables the device to efficiently adapt to various workstation layouts on the production line, completing precise transfer tasks. Simultaneously, its compact structure avoids the cost and control complexity associated with redundant multiple mechanisms, improving the system's response speed and positioning accuracy.

[0008] Furthermore, the support arm is provided with a first limiting member and a limiting part. The first limiting member is located near the drive cylinder, and the limiting part is located at the end of the support arm. The first limiting member and the limiting part together limit the two ends of the reciprocating motion of the lifting cylinder.

[0009] The coordinated design of the first limiting component and the limiting part provides accurate and reliable dual-endpoint mechanical limiting for the horizontal reciprocating motion of the lifting cylinder. This design effectively prevents overtravel of the cylinder during movement, avoiding equipment collisions, component damage, or positioning inaccuracies caused by overshoot, thus ensuring the stability and safety of equipment operation. The mechanical hard limiting structure is simple, low-cost, and extremely reliable. It achieves effective protection without relying on complex sensor systems, reducing equipment failure rates and maintenance requirements, while ensuring the repeatability accuracy of each transfer action. It is suitable for high-cycle, long-term continuous operation production environments.

[0010] Furthermore, the support arm is provided with a slide rail arranged along the length of the support arm, and the lifting cylinder is provided with a slider and is slidably mounted on the slide rail via the slider.

[0011] The guide system employing a sliding rail and slider provides a smooth, low-friction, and high-precision linear motion foundation for the lifting cylinder and its first gripper assembly. The sliding rail and slider mechanism effectively withstands lateral loads and torques, ensuring that the drive cylinder moves the lifting cylinder without wobbling or jamming, with high linearity of the motion trajectory and excellent repeatability. This structure not only improves the stability and reliability of the transfer process but also reduces wear on parts caused by vibration or deviation, extending the equipment's service life. Furthermore, its modular design facilitates installation and subsequent maintenance, making it an ideal choice for achieving efficient and precise transplanting.

[0012] Furthermore, the frame is provided with a second limiting member and a third limiting member for limiting the left and right rotation of the bearing arm. The limiting directions of the second limiting member and the third limiting member are intersected and coplanar.

[0013] The second and third limiting components are arranged in a coplanar, intersecting configuration, together forming a precise mechanical limit on the swing angle of the rotary cylinder, thus defining the extreme positions of the left and right rotation of the support arm. This design ensures that the rotary transfer mechanism accurately stops at the preset material pick-up and unload positions with each rotation, greatly improving the repeatability and reliability of the transfer process. Mechanical limiting avoids the cumulative errors or signal interference problems that may occur with program or sensor-based positioning. Its simple and durable structure makes it particularly suitable for stable operation in magnetized environments filled with electromagnetic interference, guaranteeing the accuracy of production cycle time and product consistency.

[0014] Furthermore, the robot gripping unit has a robot unit mounted on a frame and a second gripper assembly mounted at the output end of the robot unit.

[0015] The design, employing a standard robot unit (such as a six-axis robot) paired with a dedicated second gripper assembly, endows this unit with exceptional flexibility and versatility. The robot unit can perform complex movements across multiple angles and trajectories within a large space, easily adapting to the gripping and assembly requirements of different workstations. The second gripper assembly can be customized to the specific shape and gripping requirements of the speaker magnetizing component, ensuring a firm grip without damaging the workpiece. This combination enables highly flexible production, allowing for rapid adaptation to product changes. Simultaneously, the high precision and programmability of the robot's motion guarantee the accuracy and efficiency of the assembly process, representing a core aspect of modern intelligent production lines.

[0016] Furthermore, the magnetizing device for the speaker production line also includes a conveying and positioning unit. The conveying and positioning unit includes a first conveying component that works with a rotating transfer mechanism and a second conveying component that works with a robot gripping unit. The first conveying component is used to convey the magnetizing component, and the second conveying component is used to convey the semi-finished speaker housing.

[0017] A dedicated conveying and positioning unit, divided into first and second conveying components, automates the supply and flow of materials, seamlessly integrating the magnetization and assembly processes into a continuous production system. The first conveying component continuously supplies the parts to be magnetized to the rotating transfer mechanism, ensuring a continuous supply to the magnetization table; the second conveying component precisely transports the semi-finished speaker housings to the robot's working area, preparing them for automated assembly. This design completely eliminates manual handling and waiting time between processes, significantly improving overall production efficiency, reducing work-in-process inventory, and minimizing potential human damage or contamination during material handling through automated conveying.

[0018] Furthermore, the second conveying assembly is provided with a positioning structure for positioning the horn, the positioning structure being a V-shaped positioning groove for positioning the horn housing of the semi-finished product.

[0019] Using a V-shaped positioning groove as the positioning structure on the second conveying assembly is a simple and efficient automatic centering solution. The V-shaped groove can accommodate cylindrical or near-cylindrical horn shells within a certain size range. Utilizing its inclined guiding effect, the workpiece automatically slides into the groove during conveying and stably positions itself at the bottom centerline, achieving rapid and precise radial positioning. This ensures that each horn shell arrives at the assembly station in a consistent and accurate position, providing a crucial positional reference for the subsequent precise gripping and assembly by the robot gripping unit, significantly improving the success rate of assembly operations and the consistency of the final product quality.

[0020] Furthermore, each limiting component is an adjustable length limiting rod, and one end of the limiting rod is provided with a flexible part for limiting.

[0021] Designing each limiting component as an adjustable-length limiting rod with a flexible section greatly enhances the equipment's adaptability to adjustment and its operational safety. The adjustable length allows engineers to fine-tune the cylinder stroke or the angle of the rotating mechanism according to actual production needs, flexibly adapting to the production of different product specifications and improving the equipment's versatility and production line flexibility. The flexible section at the end (such as a polyurethane buffer head) effectively absorbs energy during mechanical collisions, generating a cushioning effect. This not only reduces impact noise but, more importantly, protects the limiting component itself and the limited mechanism, preventing equipment damage caused by hard impacts and extending the service life of critical components.

[0022] Furthermore, both the first gripper assembly and the second gripper assembly include two openable and closable concave grippers and an opening and closing cylinder for driving the two concave grippers to open and close.

[0023] The first and second gripper assemblies employ the same concave gripper design in conjunction with an opening and closing cylinder, achieving standardization and reliability in the gripping function. The shape of the concave gripper closely conforms to the contour of the horn magnetizing component or related parts, providing stable and uniform gripping force, effectively preventing workpiece slippage or deformation during transfer or assembly. The pneumatic drive offers fast response and simple control, facilitating integration with the main control system for precise opening and closing timing. This standardized design reduces the types of spare parts and lowers maintenance costs, while its reliable performance ensures stable and efficient material handling throughout the entire production process.

[0024] The beneficial effects of this invention are as follows: This magnetization device, through the integration of a control unit, a rotary transfer mechanism, and a robotic gripping unit, achieves full automation from magnetization to assembly, significantly improving production efficiency and product consistency. Its support arm employs a cross-motion design of lifting cylinders and drive cylinders, combined with a slide rail slider mechanism, ensuring the precision and stability of the gripper assembly in multi-degree-of-freedom motion. The inclusion of mechanical limiting components (such as adjustable limit rods and V-shaped positioning grooves) not only prevents overtravel and equipment collisions but also provides a reliable positioning benchmark, ensuring repeatability accuracy in high-cycle production. The application of standardized pneumatic gripper assemblies and automated conveyor lines further reduces manual intervention and maintenance costs, making the equipment highly reliable, flexible, and safe, perfectly suited to the needs of modern high-volume production lines. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a magnetizing device for a loudspeaker production line according to the present invention.

[0026] Figure 2 for Figure 1 A magnified structural diagram of A in the middle;

[0027] Figure 3 This is a magnified structural diagram of B in 2.

[0028] The reference numerals in the attached drawings include: 1. Frame; 2. Rotary transplanting mechanism; 3. Magnetizing platform; 4. Robot gripping unit; 5. Control unit; 6. Rotary cylinder; 7. Bearing arm; 8. First gripper assembly; 9. Lifting cylinder; 11. Drive cylinder; 12. First limiting member; 13. Limiting part; 14. Slide rail; 15. Slider; 16. Second limiting member; 17. Third limiting member; 18. Robot unit; 19. Second gripper assembly; 21. Conveying and positioning unit; 22. First conveying assembly; 23. Second conveying assembly; 24. Positioning groove; 25. Flexible part; 26. Concave gripper; 27. Opening and closing cylinder. Detailed Implementation

[0029] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0030] Please see Figures 1 to 3As shown, a magnetizing device for a speaker production line according to this utility model includes a frame 1, a rotary transfer mechanism 2, a magnetizing table 3, a robot gripping unit 4, and a control unit 5, all mounted on the frame 1. The control unit 5 is electrically connected to the rotary transfer mechanism 2 and the robot gripping unit 4. The rotary transfer mechanism 2 includes a rotary cylinder 6, a support arm 7, and a first gripper assembly 8. The support arm 7 is mounted on the output shaft of the rotary cylinder 6, and the first gripper assembly 8 is located at one end of the support arm 7. The first gripper assembly 8 is used to grip the magnetized component and transfer it to the magnetizing table 3 via the drive of the rotary cylinder 6. The robot gripping unit 4 is used to grip the magnetized component after it has been magnetized by the magnetizing table 3 and assemble it into the speaker housing.

[0031] In actual operation, the control unit 5, as the core command component, receives work instructions from the production line in advance and performs logical calculations. When it is necessary to transfer the magnetized part, the control unit 5 sends an electrical signal to the rotary transfer mechanism 2. After receiving the signal, the rotary cylinder 6 in the rotary transfer mechanism 2 starts to rotate around the middle of the support arm 7, driving the first gripper assembly 8 located at one end of the support arm 7 to move to the storage position of the magnetized part. At this time, the control unit 5 sends another signal to control the first gripper assembly 8 to close, firmly gripping the magnetized part. Then, the rotary cylinder 6 starts again, driving the support arm 7 to rotate in the opposite direction, moving the first gripper assembly 8 holding the magnetized part directly above the magnetization table 3. Then, the first gripper assembly 8 releases, and the magnetized part is placed smoothly on the magnetization table 3, completing the transfer of the magnetized part.

[0032] After the magnetizing platform 3 completes the magnetization of the magnetizing component, the control unit 5 sends a signal to the robot gripping unit 4. The robot gripping unit 4 starts and moves to the bottom of the magnetizing platform 3, accurately gripping the magnetized component on the magnetizing platform 3. Then, according to the path preset by the control unit 5, it moves to the speaker housing assembly position and accurately assembles the magnetized component into the semi-finished speaker housing. The whole process is carried out in an orderly manner under the unified coordination of the control unit 5, realizing the automation of magnetizing component transfer and assembly.

[0033] Specifically, the support arm 7 is provided with a lifting cylinder 9 that drives the first gripper assembly 8 to reciprocate and a driving cylinder 11 that drives the lifting cylinder 9 to reciprocate along the support arm 7. The reciprocating direction of the lifting cylinder 9 and the reciprocating direction of the first gripper assembly 8 are arranged to cross each other.

[0034] During the transfer of the magnetized component by the rotating transplanting mechanism 2, the lifting cylinder 9 and the drive cylinder 11 cooperate to achieve precise spatial movement of the first gripper assembly 8. When the height of the first gripper assembly 8 needs to be adjusted to accommodate the storage position of the magnetized component or the magnetization platform 3 at different heights, the control unit 5 sends an electrical signal to the lifting cylinder 9, which starts and its piston rod reciprocates. Since the first gripper assembly 8 is connected to the lifting cylinder 9, it drives the first gripper assembly 8 to reciprocate in the vertical direction (assuming it is the lifting direction) to achieve height adjustment. For example, when gripping a magnetized component at a lower position, the piston rod of the lifting cylinder 9 extends to lower the height of the first gripper assembly 8 for easier gripping; after gripping, the piston rod retracts to raise the height of the first gripper assembly 8 and avoid collisions with other components during the transfer process.

[0035] When it is necessary to adjust the position of the first gripper assembly 8 along the length of the support arm 7 to accommodate magnetized component storage points or magnetization tables 3 at different horizontal distances, the control unit 5 sends a signal to the drive cylinder 11. The drive cylinder 11 starts, and its piston rod pushes the lifting cylinder 9 to reciprocate linearly along the support arm 7. The first gripper assembly 8 moves together with the lifting cylinder 9, thereby achieving horizontal position adjustment. Since the movement direction of the lifting cylinder 9 driving the first gripper assembly 8 intersects with the movement direction of the drive cylinder 11 driving the lifting cylinder 9 (e.g., vertical and horizontal intersection), the first gripper assembly 8 can flexibly adjust its position in two-dimensional space, ensuring accurate positioning of the magnetized component under different working conditions and smoothly completing the gripping and transfer operations.

[0036] Specifically, the support arm 7 is provided with a first limiting member 12 and a limiting part 13. The first limiting member 12 is located near the drive cylinder 11, and the limiting part 13 is located at the end of the support arm 7. The first limiting member 12 and the limiting part 13 together limit the two ends of the reciprocating motion of the lifting cylinder 9.

[0037] During the reciprocating motion of the lifting cylinder 9 along the support arm 7 driven by the drive cylinder 11, the first limiting member 12 and the limiting part 13 work together to limit the movement, preventing the lifting cylinder 9 from colliding with other components on the support arm 7 due to overtravel, thus ensuring the safety and accuracy of equipment operation. When the drive cylinder 11 pushes the lifting cylinder 9 towards the drive cylinder 11, as the lifting cylinder 9 moves, its side closer to the drive cylinder 11 gradually approaches the first limiting member 12. When the lifting cylinder 9 contacts the first limiting member 12, the first limiting member 12 generates a blocking force, restricting the lifting cylinder 9 from continuing to move in that direction, thus preventing the lifting cylinder 9 from colliding with the drive cylinder 11 or other structures on the support arm 7 near the drive cylinder 11.

[0038] When the drive cylinder 11 pulls the lifting cylinder 9 towards the end of the support arm 7, the side of the lifting cylinder 9 away from the drive cylinder 11 gradually approaches the limiting part 13 located at the end of the support arm 7. When the two come into contact, the limiting part 13 blocks the lifting cylinder 9, preventing it from slipping off the end of the support arm 7 or colliding with other components at the end due to excessive movement. Before actual production, the operator will pre-adjust the installation position of the first limiting member 12 on the support arm 7 (if it is adjustable) according to the required range of motion of the lifting cylinder 9. This ensures that the distance between the first limiting member 12 and the limiting part 13 matches the normal reciprocating stroke of the lifting cylinder 9, so that the lifting cylinder 9 always moves within a safe and precise range under the action of the drive cylinder 11, thus ensuring the accurate position adjustment of the first gripper assembly 8.

[0039] Specifically, the support arm 7 is provided with a slide rail 14 arranged along the length of the support arm 7, and the lifting cylinder 9 is provided with a slider 15 and is slidably arranged on the slide rail 14 via the slider 15.

[0040] When the drive cylinder 11 drives the lifting cylinder 9 to reciprocate along the support arm 7, the cooperation structure between the slide rail 14 and the slider 15 plays a key role in guiding and reducing friction, ensuring that the lifting cylinder 9 moves smoothly and accurately. The slide rail 14 on the support arm 7 is laid strictly in accordance with the length direction of the support arm 7, and its track cross-section matches the cross-section of the slider 15 on the lifting cylinder 9, forming a sliding fit. When the piston rod of the drive cylinder 11 extends or retracts to push or pull the lifting cylinder 9, the lifting cylinder 9 contacts the slide rail 14 on the support arm 7 through the slider 15 at the bottom. The slider 15 slides along the extension direction of the slide rail 14, causing the lifting cylinder 9 to move as a whole along the length direction of the support arm 7.

[0041] The guiding function of the slide rail 14 prevents the lifting cylinder 9 from deviating from the length direction of the support arm 7 during movement, ensuring that the lifting cylinder 9 always moves along the preset path. This, in turn, ensures that the first gripper assembly 8 connected to the lifting cylinder 9 can accurately reach the target position. Simultaneously, the sliding friction between the slider 15 and the slide rail 14 is less than the friction between the lifting cylinder 9 and the surface of the support arm 7, effectively reducing resistance and component wear during movement, lowering equipment operating noise, and extending the service life of the lifting cylinder 9 and the support arm 7. During routine maintenance, staff will periodically add lubricating oil to the mating surfaces between the slide rail 14 and the slider 15 to further reduce the coefficient of friction, ensuring that the sliding mechanism maintains good motion performance over the long term and providing support for the stable operation of the entire rotary transfer mechanism 2.

[0042] Specifically, the frame 1 is provided with a second limiting member 16 and a third limiting member 17 for limiting the left and right rotation of the bearing arm 7. The limiting direction of the second limiting member 16 and the limiting direction of the third limiting member 17 are intersected and coplanar.

[0043] During the left and right rotation of the bearing arm 7 driven by the rotary cylinder 6, the second limiting member 16 and the third limiting member 17 jointly limit the rotation angle of the bearing arm 7, preventing the bearing arm 7 from colliding with other equipment or structures on the frame 1 due to excessive rotation angle, thus ensuring the safe operation of the rotary transplanting mechanism 2. Since the second limiting member 16 and the third limiting member 17 are coplanar and their limiting directions intersect, they form a limiting area with a specific angle on the frame 1 (this angle matches the required left and right rotation range of the bearing arm 7).

[0044] When the rotary cylinder 6 drives the support arm 7 to rotate to the left, the side of the support arm 7 gradually approaches the second limiting member 16. As the rotation angle increases, the support arm 7 contacts the second limiting member 16, which generates a mechanical blocking force, preventing the support arm 7 from continuing to rotate to the left. At this time, the support arm 7 reaches the maximum rotation angle on the left, which is exactly the angle at which the first gripper assembly 8 can accurately reach the target position on the left (such as the storage position of the magnetized part). When the rotary cylinder 6 drives the support arm 7 to rotate to the right, the other side of the support arm 7 gradually approaches the third limiting member 17. When the two contact, the third limiting member 17 blocks the support arm 7, restricting the support arm 7 from continuing to rotate to the right. At this time, the support arm 7 reaches the maximum rotation angle on the right, which corresponds to the angle at which the first gripper assembly 8 reaches the target position on the right (such as above the magnetized platform 3).

[0045] During the equipment installation and commissioning phase, the staff will precisely adjust the installation positions of the second limiting member 16 and the third limiting member 17 on the frame 1 according to the preset rotation range of the bearing arm 7, so as to ensure that the limiting angles of the two are precisely matched with the working requirements of the bearing arm 7, so that the bearing arm 7 always rotates within a safe and effective angle range under the drive of the rotary cylinder 6, ensuring that the first gripper assembly 8 can accurately complete the transfer operation of the magnetized part.

[0046] Specifically, the robot gripping unit 4 has a robot unit 18 mounted on the frame 1 and a second gripper assembly 19 mounted on the output end of the robot unit 18.

[0047] After the magnetizing component is magnetized, the control unit 5 sends a gripping and assembly command to the robot gripping unit 4, and the robot unit 18 starts after receiving the signal. The robot unit 18, as an actuator capable of multi-degree-of-freedom movement, has its base fixed on the frame 1. According to the motion program preset by the control unit 5, it drives the robotic arm to perform multi-directional and multi-angle movements through internal components such as motors and reducers, thereby moving the second gripper assembly 19 located at its output end (the end of the robotic arm).

[0048] When the second gripper assembly 19 moves directly above the magnetizing platform 3 and aligns with the magnetizing component on the platform 3, the control unit 5 sends a signal to the second gripper assembly 19. The driving component of the second gripper assembly 19 (such as the opening and closing cylinder 27) is activated, causing the gripper to close and firmly grasp the magnetizing component. After grasping, the robot unit 18 adjusts the posture of the robotic arm again according to the preset path, moving the second gripper assembly 19 and the grasped magnetizing component. During this process, the robot unit 18's own position detection device (such as an encoder, vision sensor, etc.) provides real-time position information to the control unit 5. The control unit 5 fine-tunes the movement of the robot unit 18 based on the feedback information to ensure that the magnetizing component moves accurately to the speaker housing assembly station.

[0049] When the second gripper assembly 19 reaches the assembly station and aligns with the assembly position of the semi-finished speaker housing, the control unit 5 sends a signal to control the second gripper assembly 19 to open, smoothly placing the magnetizing component into the designated position on the speaker housing, completing the assembly operation. Afterwards, the robot unit 18 drives the robotic arm to reset the second gripper assembly 19, awaiting the next gripping and assembly command. The entire process achieves automated, high-precision transfer and assembly of the magnetizing component from the magnetizing table 3 to the speaker housing.

[0050] Specifically, the magnetizing device for the speaker production line also includes a conveying and positioning unit 21. The conveying and positioning unit 21 includes a first conveying component 22 that works with the rotating transfer mechanism 2 and a second conveying component 23 that works with the robot gripping unit 4. The first conveying component 22 is used to convey the magnetizing component, and the second conveying component 23 is used to convey the semi-finished speaker shell.

[0051] In the entire operation process of the magnetization device in the speaker production line, the conveying and positioning unit 21 works in conjunction with the rotary transfer mechanism 2 and the robot gripping unit 4 to achieve the orderly conveying and connection of the magnetized parts and the semi-finished speaker shells. The first conveying component 22 is started under the control of the control unit 5. The magnetized parts to be transferred are placed on its conveyor belt. The conveyor belt runs at a uniform speed according to a preset speed, conveying the magnetized parts from the previous process station of the production line to the working range of the rotary transfer mechanism 2.

[0052] When the magnetized component is conveyed to the designated position on the first conveying assembly 22 (corresponding to the gripping position of the first gripper assembly 8 in the rotary transplanting mechanism 2), the position detection sensor (such as a photoelectric sensor) on the first conveying assembly 22 detects the magnetized component and feeds a signal back to the control unit 5. The control unit 5 then sends a signal to control the first conveying assembly 22 to pause operation, keeping the magnetized component in a fixed position so that the first gripper assembly 8 of the rotary transplanting mechanism 2 can accurately grip it. After the first gripper assembly 8 has gripped the magnetized component and moved it away, the control unit 5 controls the first conveying assembly 22 to start again and continue conveying the next magnetized component.

[0053] Meanwhile, the second conveying assembly 23 also operates under the control of the control unit 5. Its conveyor belt holds semi-finished speaker housings, transporting them from the housing processing station to the assembly working area of ​​the robot gripping unit 4. When the speaker housing reaches the designated assembly position on the second conveying assembly 23 (corresponding to the assembly position of the second gripper assembly 19 in the robot gripping unit 4), the position detection sensor on the second conveying assembly 23 also feeds back a detection signal to the control unit 5. The control unit 5 then controls the second conveying assembly 23 to pause, fixing the speaker housing and facilitating the robot gripping unit 4 to accurately assemble the magnetizing component into the speaker housing.

[0054] After assembly, the control unit 5 controls the second conveying component 23 to start, which transports the assembled magnetized horn housing to the next process station. This cycle is repeated to achieve continuous and automated conveying of the magnetized component and the horn housing, ensuring the smooth operation of the entire production line.

[0055] Specifically, the second conveying component 23 is provided with a positioning structure for positioning the horn, the positioning structure being a V-shaped positioning groove 24 for positioning the semi-finished horn housing.

[0056] During the process of conveying the semi-finished speaker housing by the second conveying assembly 23, the V-shaped positioning groove 24 plays a role in accurately positioning the speaker housing, ensuring that the robot gripping unit 4 can accurately assemble the magnetizing component into the speaker housing. When the semi-finished speaker housing is placed on the conveyor belt of the second conveying assembly 23, it moves towards the V-shaped positioning groove 24 under the drive of the conveyor belt.

[0057] Because the opening of the V-shaped positioning groove 24 is funnel-shaped and its opening size is slightly larger than the maximum outer diameter of the funnel housing, the funnel housing will gradually slide into the V-shaped positioning groove 24 during movement. The two inclined surfaces of the V-shaped positioning groove 24 have a guiding function, which can automatically center and correct the funnel housing. Regardless of whether the initial position of the funnel housing on the conveyor belt is offset, after sliding into the V-shaped positioning groove 24, it will eventually stabilize at the center position of the bottom of the V-shaped positioning groove 24 under the compression and guidance of the inclined surfaces. This center position is precisely aligned with the preset assembly position of the robot gripping unit 4.

[0058] Meanwhile, the depth and width of the V-shaped positioning groove 24 are precisely designed to ensure that the speaker housing will not tip over or sway from side to side after being placed in, maintaining a stable posture. When the speaker housing reaches the target position within the V-shaped positioning groove 24, the position detection sensor on the second conveying assembly 23 detects that the speaker housing has been accurately positioned and sends a signal back to the control unit 5. The control unit 5 then controls the second conveying assembly 23 to pause operation. At this point, the robot gripping unit 4 can accurately assemble the magnetizing component into the designated position on the speaker housing according to the preset program.

[0059] After assembly, the second conveying component 23 is activated, and the V-shaped positioning groove 24 moves with the conveyor belt to transport the assembled speaker housing to the next process. At the same time, the next semi-finished speaker housing continues to slide into the subsequent V-shaped positioning groove 24, achieving continuous and precise positioning and conveying.

[0060] Specifically, each limiting component is an adjustable length limiting rod, and one end of the limiting rod is provided with a flexible part 25 for limiting.

[0061] During equipment operation, the adjustable-length limit rod can flexibly adjust its limit position according to actual work requirements, ensuring that the stroke of each moving part is accurately adapted to the production conditions. The flexible part 25 acts as a buffer to prevent damage to the parts caused by hard collisions. For the first limit member 12 (used to limit the lifting cylinder 9), when the production line changes to different specifications of magnetizing parts, causing the required range of motion of the lifting cylinder 9 to change, the operator can rotate the adjusting nut (or other adjusting structure) on the limit rod to change the length of the limit rod extending out of the bearing arm 7, thereby adjusting the distance between the first limit member 12 and the limit part 13, so that the reciprocating stroke of the lifting cylinder 9 matches the transfer requirements of the new specification of magnetizing parts.

[0062] Similarly, for the second limiting member 16 and the third limiting member 17 (used to limit the rotation of the bearing arm 7), if it is necessary to adjust the rotation angle of the bearing arm 7 to adapt to different working positions, the operator can adjust the length of its limiting rod to change the blocking position of the limiting rod on the bearing arm 7, thereby adjusting the left and right rotation limit angle of the bearing arm 7.

[0063] When the limiting components perform their limiting function, the flexible part 25 at one end of the limiting rod (usually made of elastic materials such as rubber or polyurethane) directly contacts the moving parts (such as the lifting cylinder 9 and the bearing arm 7). When the moving parts impact the flexible part 25, the flexible part 25 undergoes elastic deformation, absorbing the impact force generated by the collision, preventing hard impacts between the moving parts and the limiting rod, reducing wear and deformation of the parts, and extending the service life of the equipment. At the same time, the elastic contact of the flexible part 25 can also reduce the noise generated by the collision, improve the working environment, and ensure that the equipment maintains stable and reliable performance during long-term operation.

[0064] Specifically, the first gripper assembly 8 and the second gripper assembly 19 each include two openable and closable concave grippers 26 and an opening and closing cylinder 27 for driving the two concave grippers 26 to open and close.

[0065] During the process of the first gripper assembly 8 gripping the magnetizing component and the second gripper assembly 19 grasping the magnetizing component and assembling it into the speaker housing, the concave grippers 26 and the opening / closing cylinder 27 work together to achieve a firm grip and precise placement of the magnetizing component. For the first gripper assembly 8, when it is necessary to grip the magnetizing component, the control unit 5 sends a signal to the opening / closing cylinder 27, the piston rod of the opening / closing cylinder 27 retracts, and drives the two concave grippers 26 to open outward through the linkage mechanism (or direct connection). At this time, the rotating cylinder 6, the lifting cylinder 9, and the driving cylinder 11 cooperate to move the opened grippers to both sides of the magnetizing component.

[0066] When the magnetizing component is positioned at the center between the two concave grippers 26, the control unit 5 sends a signal to extend the piston rod of the opening / closing cylinder 27, pushing the two concave grippers 26 inward to close. Since the concave surfaces of the grippers 26 are adapted to the shape of the magnetizing component, after closing, the grippers 26 can tightly adhere to the surface of the magnetizing component, increasing the contact area and friction between the grippers and the magnetizing component, thereby firmly clamping the magnetizing component and preventing it from slipping during transport. When it is necessary to place the magnetizing component onto the magnetizing table 3, the piston rod of the opening / closing cylinder 27 retracts again, causing the two concave grippers 26 to open and release the magnetizing component.

[0067] The second gripper assembly 19 operates on a similar principle to the first gripper assembly 8. When gripping the magnetized component in the magnetizing table 3, the opening and closing cylinder 27 drives the two concave grippers 26 to open. The robot unit 18 moves the grippers to the position of the magnetized component, and then the opening and closing cylinder 27 drives the grippers to close and clamp the magnetized component. When moving to the speaker housing assembly position, the opening and closing cylinder 27 drives the grippers to open, accurately placing the magnetized component into the designated installation position on the speaker housing. The design of the concave grippers 26 not only ensures the stability of gripping but also avoids scratches or damage to the surface of the magnetized component during gripping, ensuring the quality of the magnetized component. The opening and closing cylinder 27 provides stable and reliable power for the opening and closing of the grippers, ensuring the accuracy and speed of the gripping and releasing actions, and meeting the automation cycle requirements of the production line.

[0068] The working principle of this utility model is as follows: In the magnetization operation of the speaker production line, the magnetization device, with the control unit 5 as its core, first activates the conveying and positioning unit 21 and the rotating transfer mechanism 2 to complete the transfer and magnetization preparation of the magnetized part. Under the control of the control unit 5, the first conveying component 22 conveys the magnetized part to be magnetized to the designated position. After the position detection sensor provides a feedback signal, the first conveying component 22 stops to ensure that the magnetized part is within the gripping range of the rotating transfer mechanism 2. At this time, the control unit 5 sends a command to the rotating transfer mechanism 2 to drive the cylinder 11 to push the lifting cylinder 9 to slide along the slide rail 14 on the support arm 7. At the same time, the lifting cylinder 9 adjusts its height and, in conjunction with the rotating cylinder 6, rotates around the middle of the support arm 7 to accurately move the first gripper assembly 8 to the magnetized part.

[0069] The opening and closing cylinder 27 drives the two concave grippers 26 to close, tightly clamping the magnetizing component. Then, the rotating cylinder 6 rotates in the opposite direction, driving the cylinder 11 and the lifting cylinder 9 to readjust their positions, smoothly transferring the magnetizing component to the magnetizing platform 3 and releasing it. The magnetizing platform 3 then starts the magnetizing operation on the component. During the process, the first limiting member 12 and the limiting part 13 restrict the sliding stroke of the lifting cylinder 9, the second and third limiting members limit the rotation angle of the bearing arm 7, and the flexible part 25 of each limiting rod buffers collisions, ensuring accurate transfer and equipment safety.

[0070] After the magnetizing component is magnetized, the control unit 5 sends a command to the robot gripping unit 4. The robot unit 18 drives the robotic arm to move the second gripper assembly 19 above the magnetizing platform 3. The opening and closing cylinder 27 drives the concave gripper 26 to close and grasp the magnetized component. The robot unit 18 adjusts its posture according to the preset path and in real time with feedback from the position detection device, and moves the magnetized component to the second conveying assembly 23. At this time, the second conveying assembly 23 has conveyed the semi-finished speaker housing to the designated position with the V-shaped positioning groove 24. The V-shaped positioning groove 24 automatically centers and corrects the speaker housing through the inclined plane to ensure its stability and alignment with the assembly position of the magnetized component. After the position detection sensor provides a feedback signal, the second conveying assembly 23 stops.

[0071] Robot unit 18 adjusts the position of the second gripper assembly 19 so that the magnetizing component is aligned with the speaker housing assembly position. The opening and closing cylinder 27 drives the gripper to open, accurately assembling the magnetizing component into the speaker housing. After assembly, the second conveying assembly 23 starts to transport the assembled speaker housing to the next process. Robot gripping unit 4 resets, and the first conveying assembly 22 continues to transport the next magnetizing component, entering the next round of magnetization and assembly cycle, realizing fully automated continuous operation of the speaker production line magnetization operation.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A magnetizing device for a loudspeaker production line, characterized in that: The device includes a frame (1), a rotating transplanting mechanism (2) mounted on the frame (1), a magnetizing table (3), a robot gripping unit (4), and a control unit (5). The control unit (5) is electrically connected to the rotating transplanting mechanism (2) and the robot gripping unit (4). The rotating transplanting mechanism (2) includes a rotating cylinder (6), a support arm (7), and a first gripper assembly (8). The support arm (7) is mounted on the output shaft of the rotating cylinder (6), and the first gripper assembly (8) is located at one end of the support arm (7). The first gripper assembly (8) is used to grip the magnetized component and transfer it to the magnetizing table (3) via the drive of the rotating cylinder (6). The robot gripping unit (4) is used to grip the magnetized component after it has been magnetized by the magnetizing table (3) and assemble it into the speaker housing.

2. The magnetizing device for a speaker production line according to claim 1, characterized in that: The support arm (7) is provided with a lifting cylinder (9) for reciprocating the first gripper assembly (8) and a driving cylinder (11) for reciprocating the lifting cylinder (9) along the support arm (7). The reciprocating direction of the lifting cylinder (9) and the reciprocating direction of the first gripper assembly (8) are intersected.

3. A magnetizing device for a loudspeaker production line according to claim 2, characterized in that: The support arm (7) is provided with a first limiting member (12) and a limiting part (13). The first limiting member (12) is located near the drive cylinder (11), and the limiting part (13) is located at the end of the support arm (7). The first limiting member (12) and the limiting part (13) together limit the two ends of the reciprocating motion of the lifting cylinder (9).

4. A magnetizing device for a loudspeaker production line according to claim 2, characterized in that: The support arm (7) is provided with a slide rail (14) arranged along the length direction of the support arm (7), and the lifting cylinder (9) is provided with a slider (15) and is slidably arranged on the slide rail (14) through the slider (15).

5. A magnetizing device for a loudspeaker production line according to claim 1, characterized in that: The frame (1) is provided with a second limiting member (16) and a third limiting member (17) for limiting the left and right rotation of the bearing arm (7). The limiting direction of the second limiting member (16) and the limiting direction of the third limiting member (17) are intersected and coplanar.

6. A magnetizing device for a loudspeaker production line according to claim 1, characterized in that: The robot gripping unit (4) has a robot unit (18) mounted on a frame (1) and a second gripper assembly (19) mounted on the output end of the robot unit (18).

7. A magnetizing device for a loudspeaker production line according to claim 1, characterized in that: The magnetizing device for the speaker production line also includes a conveying and positioning unit (21), which includes a first conveying component (22) that works with the rotating transfer mechanism (2) and a second conveying component (23) that works with the robot gripping unit (4). The first conveying component (22) is used to convey the magnetizing component, and the second conveying component (23) is used to convey the semi-finished speaker shell.

8. A magnetizing device for a loudspeaker production line according to claim 7, characterized in that: The second conveying assembly (23) is provided with a positioning structure for positioning the horn, the positioning structure being a V-shaped positioning groove (24) for positioning the horn shell of the semi-finished product.

9. A magnetizing device for a loudspeaker production line according to claim 3 or 5, characterized in that: Each limiting component is an adjustable length limiting rod, and one end of the limiting rod is provided with a flexible part (25) for limiting.

10. A magnetizing device for a loudspeaker production line according to claim 6, characterized in that: The first gripper assembly (8) and the second gripper assembly (19) each include two openable and closable concave grippers (26) and an opening and closing cylinder (27) for driving the two concave grippers (26) to open and close.

Images