A flexible automated assembly apparatus and method for a loudspeaker magnetic circuit

Abstract

The present application belongs to the technical field of loudspeaker production equipment, and particularly relates to a loudspeaker magnetic circuit flexible automatic assembly equipment and method. The equipment comprises a rack, a jig, a first conveying assembly, a first feeding assembly, a second feeding assembly, a third feeding assembly, a first dispensing assembly, a second dispensing assembly and a curing assembly. The jig is provided with a limiting structure for limiting a pot core, a magnet and a bottom shell. The first conveying assembly is used for conveying the jig along a first conveying direction. Each feeding assembly is used for supplying one of the pot core, the magnet or the bottom shell. Each dispensing assembly is used for dispensing glue on the pot core or the magnet supplied by each feeding assembly. The curing assembly is used for heating and curing the assembled magnetic circuit semi-finished product. The present application has a compact overall structure layout, a small equipment floor area, is beneficial to shortening the production rhythm, effectively improves the production efficiency and reduces the labor cost.

Description

Technical Field

[0001] This invention belongs to the technical field of loudspeaker manufacturing equipment, and particularly relates to a flexible automated assembly equipment and method for loudspeaker magnetic circuits. Background Technology

[0002] As the core component for electroacoustic conversion, the quality of the loudspeaker's magnetic circuit system assembly directly determines the acoustic performance and lifespan of the final product. The loudspeaker's magnetic circuit system typically consists of multiple components stacked sequentially, such as the base, magnet, and washer (electrode), and then glued together. In existing technologies, the assembly of the magnetic circuit system mainly relies on manual labor, usually involving manually applying adhesive layer by layer and aligning the washer, magnet, and base.

[0003] Regarding the existing related technologies mentioned above, the inventors believe that they have the following technical defects: relying on manual assembly of the magnetic circuit system not only results in low production efficiency and high labor costs, but also makes it difficult to ensure the consistency of glue application each time and the concentricity of multi-layer component bonding, which can easily lead to problems such as glue overflow and misalignment, thus hindering the guarantee of product qualification rate. Therefore, the existing related technologies require further improvement. Summary of the Invention

[0004] This invention provides a flexible automated assembly device and method for loudspeaker magnetic circuits to solve at least one technical problem in existing related technologies: relying on manual assembly of magnetic circuit systems not only results in low production efficiency and high labor costs, but also makes it difficult to ensure the consistency of glue application amount and the concentricity of multi-layer component bonding, which can easily lead to problems such as glue overflow and misalignment, thus hindering the guarantee of product qualification rate.

[0005] In a first aspect, embodiments of the present invention provide a flexible automated assembly device for loudspeaker magnetic circuits, comprising: frame; A fixture for supporting a washer, a magnet, and a bottom shell, wherein the fixture is provided with a limiting structure for limiting the washer, the magnet, and the bottom shell; A first conveying component is disposed on the frame and is used to convey the fixture along a first conveying direction, so that the fixture passes sequentially through the washer loading station, the first dispensing station, the magnet loading station, the second dispensing station and the bottom shell loading station. The first feeding component is located at the washer feeding station on the frame and is used to supply washer to the fixture when the fixture is transferred to the washer feeding station. The first dispensing assembly is located at the first dispensing station on the frame and is used to apply adhesive liquid onto the washer supplied by the first feeding assembly. The second feeding component is located at the magnet feeding station on the frame and is used to supply magnets to the fixture when the fixture moves to the magnet feeding station, so that the magnets are stacked on the washer coated with adhesive. The second dispensing assembly is located at the second dispensing station on the frame and is used to dispense adhesive onto the magnet supplied by the second feeding assembly. The third feeding component, located at the bottom shell feeding station on the frame, supplies the bottom shell to the fixture when the fixture moves to the bottom shell feeding station, so that the bottom shell is stacked on the magnet coated with adhesive to obtain a magnetic circuit semi-finished product; and A curing component, mounted on the frame, is used to heat and cure the semi-finished magnetic circuit to obtain the finished magnetic circuit.

[0006] Optionally, it also includes a second conveying component, disposed on the frame, for conveying the fixture along a second conveying direction, the second conveying direction being opposite to the first conveying direction; the curing component is disposed on the conveying path of the second conveying component; The first clamping and conveying component is disposed on the frame near the bottom shell loading station, and is used to move the fixture and the magnetic circuit semi-finished product from the first conveying component to the second conveying component, so that the magnetic circuit semi-finished product is heated and cured by the curing component to obtain the magnetic circuit finished product. The second clamping assembly is located on the frame near the washer loading station. It is used to move the fixture and the finished magnetic circuit from the second conveying assembly to the first conveying assembly for unloading, and to continue to convey the unloaded fixture to the washer loading station for the next round of operation.

[0007] Optionally, a feeding assembly is also included, disposed at a feeding station on the frame, for unloading the finished magnetic circuit from the fixture to a predetermined position. The feeding station is located upstream of the washer loading station along the first conveying direction. The feeding assembly includes: a picking cylinder capable of three-dimensional spatial displacement; and a ejector block sleeved outside the picking cylinder. When the picking cylinder unloads material, the picking cylinder moves relative to the ejector block, and the ejector block is used to scrape the finished magnetic circuit from the picking cylinder.

[0008] Optionally, the feeding assembly further includes a pressure plate located below the feeding cylinder, the pressure plate having a guide hole for the feeding cylinder to pass through; during feeding, the feeding cylinder passes through the guide hole to attract the finished magnetic circuit product, and the pressure plate is used to block the fixture downward to prevent it from being lifted.

[0009] Optionally, the assembly further includes a blocking component and a lifting component disposed on the first conveying component; the blocking component includes a height-adjustable barrier and a blocking power component for driving the barrier to rise and fall; the lifting component includes a height-adjustable pallet and a lifting power component for driving the pallet to rise and fall; when the fixture approaches the loading, dispensing, or unloading station, the blocking power component drives the barrier to rise, blocking and stopping the fixture; the lifting power component drives the pallet to push upward from bottom to top, lifting the fixture and raising it away from the conveying surface of the first conveying component by a predetermined height.

[0010] Optionally, the limiting structure includes a boss provided on the fixture and a barrier surrounding the boss, wherein the limiting space contour formed by the boss and the barrier is adapted to the shape of the washer, the magnet, or the bottom shell.

[0011] Optionally, the first feeding assembly includes a robotic arm, a transfer unit, and a tray unit; the robotic arm is used to grasp materials and place them on the transfer unit; the transfer unit is used to center and correct the materials; and the tray unit is used to pick up the centered and corrected materials from the transfer unit and place them in the fixture on the first conveying assembly.

[0012] Optionally, the transfer unit includes a slide rail, a slide block slidably mounted on the slide rail, and a correction plate mounted on the slide block; the correction plate has multiple sets of correction holes, and the intersection of each set of correction holes is a centering sight for placing materials; a positioning block is slidably inserted into each correction hole, and the slide block is provided with a positioning power component for driving each positioning block to retract toward the centering sight, so as to squeeze and correct the washer, the magnet, or the bottom shell.

[0013] Secondly, embodiments of the present invention provide a loudspeaker magnetic circuit assembly method, based on the loudspeaker magnetic circuit assembly equipment described above, the method comprising the following steps: S100. The fixture is conveyed along the first conveying direction by the first conveying component, so that the fixture passes through the washer loading station, the first glue dispensing station, the magnet loading station, the second glue dispensing station and the bottom shell loading station in sequence. S200: When the fixture is transferred to the washer loading station, the washer is supplied to the fixture through the first loading component; S300: When the fixture is transferred to the first dispensing station, the adhesive is applied to the washer through the first dispensing assembly. S400 When the fixture is transferred to the magnet loading station, the magnets are stacked on the washer coated with adhesive by the second loading component; S500: When the fixture moves to the second dispensing station, adhesive is applied to the magnet through the second dispensing assembly. S600 When the jig is transferred to the bottom shell loading station, the bottom shell is stacked on the magnet coated with adhesive by the third loading component to obtain the magnetic circuit semi-finished product. S700: The magnetic circuit semi-finished product is heated and cured by the curing component to obtain the finished magnetic circuit.

[0014] Optionally, the device includes a feeding assembly, and after step S700, the device further includes the step of: The magnetic circuit finished product on the fixture is adsorbed by the picking cylinder of the feeding assembly. After the picking cylinder is moved to the unloading position, the picking cylinder moves upward relative to the unloading block sleeved on its outside, so that the magnetic circuit finished product is scraped off the picking cylinder by the unloading block.

[0015] In this embodiment of the invention, the limiting structure on the fixture physically limits the washer, magnet, and base shell, effectively preventing slippage and misalignment of materials that have been dispensed but whose adhesive has not yet cured during stacking and operation. This helps ensure the vertical concentricity of multi-layer material bonding. Furthermore, the use of a first dispensing assembly and a second dispensing assembly ensures consistent adhesive dispensing volume per batch, reducing the risk of adhesive overflow. The overall structure is compact, the equipment occupies a small area, and to some extent, it helps to shorten the production cycle, effectively improving production efficiency and significantly reducing labor costs. Attached Figure Description

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

[0017] To gain a more complete understanding of the present invention and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0018] Figure 1 A schematic diagram of the structure of a flexible automated assembly equipment for loudspeaker magnetic circuits provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of a portion of the structure of a flexible automated assembly equipment for loudspeaker magnetic circuits provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the fixture in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of a portion of the structure of the first conveying component and the first feeding component in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the first clamping component in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the lifting component and the blocking component in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the guide plate in an embodiment of the present invention.

[0025] Figure 8 This is a top view of the fixture in this embodiment of the invention when it is located directly below the guide plate.

[0026] Figure 9 This is a schematic diagram of the transfer unit in an embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of the calibration plate in an embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the slide, positioning block, and other structures in an embodiment of the present invention.

[0029] Figure 12 for Figure 11 A bottom view of the slide, positioning block, and other structures in the slide.

[0030] Figure 13 This is a schematic diagram of a portion of the structure of the plate-stacking unit in an embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of a portion of the flattening unit in an embodiment of the present invention.

[0032] Figure 15 This is a schematic diagram of the structure of the first conveying component, the first dispensing component, and other parts in an embodiment of the present invention.

[0033] Figure 16 This is a schematic diagram of a portion of the structure of the second clamping component and the unloading component in an embodiment of the present invention.

[0034] Figure 17 This is a schematic diagram of another part of the structure of the feeding assembly in an embodiment of the present invention.

[0035] Figure 18 This is a schematic diagram of the material handling cylinder in an embodiment of the present invention.

[0036] Figure 19 This is a schematic diagram of the pressure plate in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures: 100. Rack; 210. First conveying assembly; 220. Second conveying assembly; 230. First clamping assembly; 240. Second clamping assembly; 250. Guide plate; 251. Guide hole; 260. Lifting assembly; 261. Pallet; 262. Lifting power component; 270. Stopping assembly; 271. Barrier; 272. Stopping power component; 300. Fixture; 310. Limiting structure; 311. Boss; 312. Enclosure; 401. First feeding assembly; 402. Second feeding assembly; 403. Third feeding assembly; 410. Vibratory feeder; 420. Robotic arm; 430. Transfer unit; 431. Slide rail; 432. Slide block; 433. Calibration plate; 4331. Calibration hole; 4332. Centering sight; 434. Positioning block; 435. Positioning power component; 440. Plate-swinging unit; 441. Plate-swinging bracket; 442. Suction head; 443. Plate-swinging power component; 450. Flattening unit; 451. Flattening bracket; 452. Press head; 501. First dispensing assembly; 502. Second dispensing assembly; 510. Glue cartridge holder; 520. Dispensing cartridge; 530. Dispensing power unit; 600. Feeding assembly; 610. Unloading bracket; 611. Mounting plate; 620. Picking cylinder; 621. Magnetic suction head; 630. Pressure plate; 631. Guide hole; 640. Unloading block; 650. Unloading channel; 700. Curing components; 710. Hot air drying tunnel. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] This invention provides a loudspeaker magnetic circuit assembly device and method to solve the technical problems existing in the prior art: relying on manual assembly of the magnetic circuit system not only results in low production efficiency and high labor costs, but also makes it difficult to ensure the consistency of glue application each time and the concentricity of multi-layer component bonding, which can easily lead to problems such as glue overflow and misalignment, thus hindering the guarantee of product qualification rate. The following description will be provided in conjunction with the accompanying drawings.

[0040] In a first aspect, embodiments of the present invention provide a flexible automated assembly device for loudspeaker magnetic circuits. (Refer to...) Figures 1 to 3 , Figure 1 This is a schematic diagram of a loudspeaker magnetic circuit assembly device provided in an embodiment of the present invention. Figure 2This is a schematic diagram of a portion of the structure of the loudspeaker magnetic circuit assembly equipment provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the fixture structure in an embodiment of the present invention. An embodiment of the present invention provides a loudspeaker magnetic circuit assembly device including a frame 100, a fixture 300, and a first conveying assembly 210, a first feeding assembly 401, a second feeding assembly 402, a third feeding assembly 403, a first dispensing assembly 501, a second dispensing assembly 502, and a curing assembly 700 disposed on the frame 100, wherein: The frame 100 is equipped with a washer loading station, a first dispensing station, a magnet loading station, a second dispensing station, and a bottom shell loading station. A fixture 300 is used to carry materials such as washer, magnet, and bottom shell, and the fixture 300 is equipped with a limiting structure 310 for limiting the movement of the washer, magnet, and bottom shell. A first conveying assembly 210 is disposed at the washer loading station on the frame 100 and is used to convey the fixture 300 along a first conveying direction, so that the fixture 300 sequentially passes through the washer loading station, the first dispensing station, the magnet loading station, the second dispensing station, and the bottom shell loading station on the frame 100. In this embodiment of the invention, the first conveying direction is as follows: Figure 1 The line segment F with the arrow indicates the following: The first feeding assembly 401 supplies wash to the fixture 300 when it moves to the wash feeding station; the first dispensing assembly 501 is located at the first dispensing station on the frame 100 and is used to apply adhesive to the wash supplied by the first feeding assembly 401; the second feeding assembly 402 is located at the magnet feeding station on the frame 100 and is used to supply magnets to the fixture 300 when it moves to the magnet feeding station, so that the magnets are stacked on the wash coated with... The adhesive is applied to the washer; the second dispensing assembly 502 is located at the second dispensing station on the frame 100 and is used to dispense adhesive onto the magnet supplied by the second feeding assembly 402; the third feeding assembly 403 is located at the bottom shell feeding station on the frame 100 and is used to supply the bottom shell to the fixture 300 when the fixture 300 is transferred to the bottom shell feeding station, so that the bottom shell is stacked on the magnet coated with adhesive to obtain a magnetic circuit semi-finished product; the curing assembly 700 is used to heat and cure the magnetic circuit semi-finished product to obtain a magnetic circuit finished product.

[0041] Using the above technical solution, during assembly, the first conveying component 210 drives the fixture 300 to continuously rotate along the first conveying direction on the assembly line. Simultaneously, the first feeding component 401, the second feeding component 402, the third feeding component 403, the first dispensing component 501, and the second dispensing component 502 sequentially feed and dispense materials into the fixture 300 at room temperature, stacking the washer, magnet, and base layer by layer, and applying adhesive between adjacent washer and magnet or between magnet and housing. Finally, the stacked magnetic circuit product enters the curing component 700 along with the fixture 300, allowing the multiple layers of undried adhesive inside the magnetic circuit product to undergo concentrated heating and curing. Throughout the process, the limiting structure 310 on the fixture 300 physically limits the washer, magnet, and base, effectively preventing slippage and misalignment of materials that have been dispensed but whose adhesive has not yet cured during stacking and operation, thus ensuring the vertical concentricity of the multi-layered materials. Furthermore, the use of the first dispensing assembly 501 and the second dispensing assembly 502 ensures consistent dispensing volume per cycle, reducing the risk of glue overflow. The overall structure is compact, the equipment occupies a small area, and to some extent, it helps to shorten the production cycle, effectively improving production efficiency and significantly reducing labor costs.

[0042] Furthermore, refer to again Figure 3 In this embodiment of the invention, the fixture 300 is rectangular in shape. Four independent bearing areas are arrayed on the top surface of the fixture 300. Each bearing area can bear two sets of materials. In other words, the fixture 300 has two rows and four columns, totaling eight bearing stations. After completion, one fixture 300 can simultaneously produce eight finished magnetic circuit products. Specifically, the limiting structure 310 on the fixture 300 includes a rectangular boss 311 centrally located at a bearing station and protruding upwards, and a surrounding barrier 312 surrounding the boss 311. The limiting space contour formed by the boss 311 and the surrounding barrier 312 is adapted to the shape of the washer, magnet, and bottom shell. Thus, by limiting the materials through the boss 311 and the surrounding barrier 312, it effectively prevents the stacked materials from slipping or shifting during transport because the adhesive is still in a liquid state and has weak adhesion. This ensures the concentricity of each material in the vertical direction, which is beneficial to ensuring the quality of the finished magnetic circuit product.

[0043] Furthermore, in conjunction with reference Figure 2 and Figure 4 , Figure 4This is a schematic diagram of a portion of the structure of the first conveying component and the first feeding component in an embodiment of the present invention. The first conveying component 210 in this embodiment can employ a conveying mechanism commonly used in the art, such as a belt or synchronous belt conveyor. To physically block the high temperature of the curing component 700 from being conducted to the front-end assembly area and to cut off the mechanical resonance of the entire line, the device in this embodiment also includes a second conveying component 220. The second conveying component 220 is used to convey the fixture 300 along a second conveying direction, which is opposite to the first conveying direction. The curing component 700 is disposed on the conveying path of the second conveying component 220. Specifically, the second conveying direction of the second conveying component 220 is as follows... Figure 2 As shown by the line segment H with arrows, the first conveyor component 210 and the second conveyor component 220 are arranged in parallel segments to form a rotating conveyor path. Furthermore, there is a high-low position difference between the first conveyor component 210 and the second conveyor component 220, with the first conveyor component 210 located at the high position and the second conveyor component 220 located at the low position.

[0044] This effectively prevents the high temperature of the curing component 700 from being conducted to the feeding and dispensing stations, avoiding premature curing of the adhesive and ensuring consistent dispensing volume and process stability. Furthermore, since the feeding and dispensing processes have different requirements for stability and operating rhythm compared to the heating and curing processes, the parallel segmented arrangement allows the first conveyor component 210 and the second conveyor component 220 to use independent drives and speed controls, facilitating a rhythm buffer between the two zones. In addition, the staggered arrangement effectively avoids spatial interference between the large heating and curing equipment and the feeding and dispensing mechanisms on the same horizontal plane, making the overall layout more compact.

[0045] Furthermore, in conjunction with reference Figure 2 and Figure 5 , Figure 5This is a schematic diagram of the structure of the first clamping component in an embodiment of the present invention. In order to achieve a smooth transition of the fixture 300 between the first conveying component 210 and the second conveying component 220, which have a height difference, and to avoid the stacked materials from shifting their concentricity due to vibration or tilting, a first clamping component 230 and a second clamping component 240 are provided at the ends where the height and low positions are switched. Specifically, the first clamping assembly 230 is disposed on the frame 100 near the bottom shell loading station, and is used to move the jig 300 and the magnetic circuit semi-finished product from the first conveying assembly 210 to the second conveying assembly 220, so that the magnetic circuit semi-finished product can be heated and cured by the curing assembly 700 to obtain the magnetic circuit finished product; the second clamping assembly 240 is disposed on the frame 100 near the washer loading station, and is used to move the jig 300 and the magnetic circuit finished product from the second conveying assembly 220 to the first conveying assembly 210 for unloading, and then the unloaded jig 300 is conveyed to the washer loading station for a new round of operation, thus realizing closed-loop reflux. In this embodiment of the invention, the first clamping assembly 230 and the second clamping assembly 240 have the same structure and can both adopt the following... Figure 5 The mechanical gripper mechanism shown.

[0046] Furthermore, in conjunction with reference Figure 4 and Figure 6 , Figure 6 This is a schematic diagram of the lifting and blocking components in an embodiment of the present invention. In some embodiments, to ensure that the first feeding component 401, the second feeding component 402, the third feeding component 403, the first dispensing component 501, the second dispensing component 502, and the unloading component 600 (described below) can still perform precise operations while the first conveying component 210 is continuously operating, a blocking component 270 and a lifting component 260 are provided at each feeding, dispensing, and unloading station. Specifically, the blocking component 270 and the lifting component 260 are located in the middle of the first conveying component 210. The blocking component 270 includes a height-adjustable barrier 271 and a blocking power component 272 that drives the barrier 271 to rise and fall. The lifting component 260 includes a height-adjustable pallet 261 and a lifting power component 262 that drives the pallet 261 to rise and fall. When the fixture 300 approaches the corresponding workstation, the blocking power component 272 drives the barrier 271 to rise, blocking and stopping the fixture 300 for coarse positioning; then, the lifting power component 262 drives the pallet 261 to push from bottom to top, passing through the gap of the first conveying component 210 to lift the fixture 300 as a whole and slightly lift it away from the conveying surface of the first conveying component 210, so as to facilitate the first feeding component 401, the second feeding component 402, the third feeding component 403, the first dispensing component 501, the second dispensing component 502, and the unloading component 600 to perform precise operations.

[0047] Furthermore, in conjunction with reference Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the guide plate in an embodiment of the present invention. Figure 8 This is a top view of the fixture 300 located directly below the guide plate in this embodiment of the invention. To prevent the lifting assembly 260 from over-lifting the fixture 300 and to ensure the accuracy of material placement by each feeding assembly, a guide plate 250 is provided at each feeding station. Specifically, the guide plate 250 spans above the first conveying assembly 210, extending a predetermined height above the conveying surface of the first conveying assembly 210. The guide plate 250 has an array of guide holes 251 with funnel-shaped chamfers, the positions of which correspond one-to-one with the positions of the bearing stations on the fixture 300. When the fixture 300 reaches a predetermined station and is stopped and lifted, the guide holes 251 on the guide plate 250 and the limiting structure 310 on the fixture 300 are vertically aligned and connected. Thus, when each feeding assembly vertically lowers the material, the guide holes 251 can limit the edge of the material, ensuring that the material accurately falls into the precise position within the fixture 300.

[0048] Specifically, refer to Figure 2 and Figure 4 Combined with reference Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the transfer unit in an embodiment of the present invention. Figure 10 This is a schematic diagram of the correction plate in an embodiment of the present invention. The first feeding assembly 401 in this embodiment includes a vibratory feeder 410 and a robotic arm 420. The vibratory feeder 410 is used to straighten and output bulk materials, and the robotic arm 420 is used to grasp the materials. To eliminate the initial mechanical errors accumulated during the grasping and releasing process of the robotic arm 420 and improve the concentricity of the material feed, the first feeding assembly 401 in this embodiment also includes a transfer unit 430 disposed between the robotic arm 420 and the first conveying assembly 210. Specifically, the transfer unit 430 includes a slide rail 431 parallel to one side of the first conveying assembly 210, a slide block 432 slidably mounted on the slide rail 431, and a correction plate 433 mounted on the top of the slide block 432. The correction plate 433 has multiple sets of rectangular correction holes 4331, each set of correction holes 4331 arranged in a cross shape, and the intersection of each set of correction holes 4331 is the centering point 4332, which is also the position where the material should be placed.

[0049] Combined with reference Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of the slide, positioning block, and other structures in an embodiment of the present invention. Figure 12 for Figure 11The image shows a bottom view of the slide block, positioning blocks, and other structures. A positioning block 434 slides through each correction hole 4331, and a positioning power component 435 is provided on the slide block 432 to drive the movement of the positioning block 434. When the robot arm 420 roughly places the material near the centering sight 4332 on the correction plate 433, the positioning power component 435 drives each positioning block 434 to retract towards the center, physically squeezing the material to achieve fine-tuning and correction. The specific structure of the centering sight 4332 of the correction plate 433 can be selected and set according to the specific type of material. For example, when feeding a washer or magnet, the centering sight 4332 of the correction plate 433 can be... Figure 9 As shown in the figure, when the bottom shell is being loaded, the centering sight 4332 of the correction plate 433 is... Figure 10 The rectangular protrusion shown is adapted to the bottom shell.

[0050] Furthermore, refer to Figure 4 Combined with reference Figure 13 , Figure 13 This is a schematic diagram of a portion of the structure of the tray-stacking unit in an embodiment of the present invention. To smoothly transfer the centered and corrected material into the fixture 300, the first feeding assembly 401 in this embodiment further includes a tray-stacking unit 440. Specifically, the tray-stacking unit 440 is suspended above the first conveying assembly 210, located between the transfer unit 430 and the first conveying assembly 210. It includes a tray-stacking bracket 441, multiple suction heads 442 movably mounted on the tray-stacking bracket 441, and a tray-stacking power component 443 that drives the suction heads 442 to move in three-dimensional space. During tray-stacking, the tray-stacking power component 443 drives the suction heads 442 to move directly above the correction plate 433 to adsorb the material. The material is then moved horizontally to directly above the guide plate 250 and lowered, allowing it to pass through the guide hole 251 and fall vertically into the fixture 300, which has been positioned by the lifting assembly 260 and the blocking assembly 270, facilitating dispensing by the first dispensing assembly 501 and the second dispensing assembly 502.

[0051] Furthermore, refer to Figure 14 , Figure 14This is a schematic diagram of a portion of the flattening unit structure in an embodiment of the present invention. To ensure that the material remains flat when falling into the fixture 300, the first feeding assembly 401 in this embodiment of the present invention also includes a flattening unit 450. Specifically, the flattening unit 450 is installed downstream of the tray unit 440 and includes a flattening bracket 451 and multiple lifting heads 452. After the tray unit 440 places the material into the fixture 300, the fixture 300 advances to below the flattening unit 450, and the pressing heads 452 of the flattening unit 450 press vertically down on the top of the material on the fixture 300, pressing the material tightly into the limiting structure 310 on the fixture 300 and keeping it flat. At the same time, if it is after the dispensing process, the pressing action of the flattening unit 450 can also expel any air bubbles that may remain in the adhesive between the material layers, and promote the adhesive to spread evenly under pressure between the layers, which is beneficial to ensuring the structural stability of the finished magnetic circuit.

[0052] It should be noted that the structures of the second feeding component 402 and the third feeding component 403 in this embodiment of the invention are basically the same as those of the first feeding component 401. Therefore, only the first feeding component 401 will be described here, and the structures of the second feeding component 402 and the third feeding component 403 will not be repeated. Furthermore, the structures of the first dispensing component 501 and the second dispensing component 502 are also basically the same. Only the first dispensing component 501 will be described below; the structure of the second dispensing component 502 can be referred to the description of the first dispensing component 501.

[0053] Furthermore, refer to Figure 15 , Figure 15 This is a schematic diagram of the structure of the first conveying component, the first dispensing component, and other parts in an embodiment of the present invention. The first dispensing component 501 in this embodiment includes a glue cartridge holder 510 capable of three-dimensional spatial displacement. The glue cartridge holder 510 is used to hold multiple dispensing cartridges 520 equipped with dispensing valves and dispensing needles (see [link to original text]). Figure 2 The first dispensing assembly 501 consists of a second dispensing component 502 and a dispensing power component 530 for driving the glue cartridge holder 510 to move the dispensing cartridge 520 in three-dimensional space. During dispensing, the fixture 300, which is equipped with a washer or a magnet, moves with the first conveying assembly 210 to directly below the first dispensing assembly 501 or the second dispensing assembly 502. At this time, the blocking assembly 270 extends the blocking 271 to stop the fixture 300, and the support plate 261 of the lifting assembly 260 lifts the fixture 300 from bottom to top. Subsequently, the dispensing power component 530 is activated, driving the glue cartridge holder 510 and the dispensing cartridge 520 to descend and move on the stationary material surface according to a preset program trajectory, thereby applying a quantitative amount of glue to the surface of the washer or magnet.

[0054] Furthermore, refer to again Figure 2The curing component 700 in this embodiment of the invention includes a hot air drying duct 710 positioned above the second conveying component 220 at a predetermined location. The hot air drying duct 710 forms a relatively enclosed curing channel, and a heating structure and a convection fan can be integrated inside it. The fan drives hot air to circulate within the curing channel, and the fixture 300 is uniformly heated and cured when it passes through the hot air drying duct 710.

[0055] Continue to refer to Figures 16 to 18 , Figure 16 This is a schematic diagram of part of the structure of the second clamping component and the unloading component in an embodiment of the present invention. Figure 17 This is a schematic diagram of another part of the structure of the feeding assembly in an embodiment of the present invention. Figure 18 This is a schematic diagram of the material handling cylinder in an embodiment of the present invention. The unloading assembly 600 in this embodiment is located at the unloading station of the frame 100, and is used to unload the finished magnetic circuit product from the fixture 300 to a predetermined position. The unloading station is located upstream of the washer loading station along the first conveying direction. Specifically, the unloading assembly 600 includes an unloading bracket 610 and a material handling cylinder 620. The material handling cylinder 620 is suspended above the unloading area of ​​the first conveying assembly 210 via the unloading bracket 610. The material handling cylinder 620 can perform three-dimensional spatial displacement. A magnetic suction head 621 is provided at the end of the material handling cylinder 620. The material handling cylinder 620 uses magnetic attraction to attract the finished magnetic circuit product from the fixture 300 and transfer it to the predetermined unloading channel 650.

[0056] Combined with reference Figure 19 , Figure 19 This is a schematic diagram of the pressure plate in an embodiment of the present invention. To prevent the jig 300 from being pulled up as a whole when the picking cylinder 620 picks up material, a pressure plate 630 is provided above the first conveying assembly 210. The pressure plate 630 has an array of guide holes 631 for the picking cylinder 620 to pass through. The position of the guide holes 631 corresponds to the position of the bearing area on the jig 300. When picking up material, the picking cylinder 620 passes through the guide holes 631 on the pressure plate 630 and extends to the jig 300 below the pressure plate 630 to attract the finished magnetic circuit. Since the pressure plate 630 is fixed on the first conveying assembly 210, if the jig 300 is lifted up when the picking cylinder 620 picks up material, it will be scraped off by the pressure plate 630 and will not be pulled up as a whole.

[0057] Furthermore, to address the problem of difficulty in demolding the finished magnetic circuit product after adsorption by the strong magnetic field, the unloading assembly 600 in this embodiment of the invention also includes a ejector block 640. Specifically, an mounting plate 611 is fixedly connected to the unloading bracket 610, and a picking cylinder 620 is movably mounted on the mounting plate 611, allowing for slight vertical movement relative to the mounting plate 611. The ejector block 640 is fixed to the mounting plate 611 and has a through hole. The diameter of the through hole is larger than the outer diameter of the picking cylinder 620 but smaller than the outer diameter of the finished magnetic circuit product. The lower middle section of the picking cylinder 620 can movably pass through the through hole in the ejector block 640. Thus, when the picking cylinder 620 moves the finished magnetic circuit product above the unloading channel 650 for unloading, the picking cylinder 620 moves upward relative to the ejector block 640, allowing the ejector block 640 to scrape off the finished magnetic circuit product.

[0058] The working principle of the loudspeaker magnetic circuit assembly equipment provided in this embodiment of the invention is briefly described as follows: At the start of the assembly operation, the unloaded fixture 300 flows on the first conveying assembly 210. When it reaches the first loading assembly 401, the blocking assembly 270 and the lifting assembly 260 work together to position the fixture 300 in a stationary position. At this time, the robot arm 420 places the washer on the correction plate 433. After being pressed and centered by the positioning block 434, the suction head 442 of the tray unit 440 picks it up and passes it through the guide hole 251 of the guide plate 250, placing it into the limiting structure 310 of the fixture 300. Subsequently, the flattening unit 450 presses it down to fit it.

[0059] Next, the fixture 300 continues to flow to the first dispensing assembly 501 and is positioned again, where the first dispensing assembly 501 applies a quantitative amount of adhesive to the top surface of the washer. In this sequence, the fixture 300 continuously flows through the second feeding assembly 402, the second dispensing assembly 502, and the third feeding assembly 403, and the physical limiting structure 310 of the fixture 300 completes the layer-by-layer stacking and compaction of the magnet and the bottom shell.

[0060] Subsequently, the first clamping assembly 230 moves the assembled fixture 300 horizontally down onto the lower-positioned second conveying assembly 220, allowing it to enter the hot air drying tunnel 710 of the curing assembly 700. In the closed hot air circulation, the adhesive between the multiple layers of components within the fixture 300 is uniformly heated and cured. The cured magnetic circuit product flows out of the drying tunnel with the fixture 300 and reaches the end of the second conveying assembly 220. The second clamping assembly 240 clamps and conveys the cured magnetic circuit product and the fixture 300 to the unloading assembly 600 located at the beginning of the first conveying assembly 210. The lifting assembly 260 and the blocking assembly 270 position the fixture 300, the picking cylinder 620 descends, passes through the guide hole 631 on the pressure plate 630 to pick up the magnetic circuit product from the fixture 300, then rises and moves horizontally above the unloading channel 650, and completes magnetic stripping under the mechanical obstruction of the unloading block 640. The magnetic circuit product slides out and is collected through the unloading channel 650. Finally, the empty fixture 300 continues to move forward and return to the beginning of the first conveyor component 210, completing the automated closed-loop flow of the production line.

[0061] Secondly, embodiments of the present invention also provide a loudspeaker magnetic circuit assembly method, based on the aforementioned loudspeaker magnetic circuit assembly equipment, comprising the following steps: S100, the fixture 300 is conveyed along the first conveying direction by the first conveying component 210, so that the fixture 300 passes through the washer loading station, the first glue dispensing station, the magnet loading station, the second glue dispensing station and the bottom shell loading station in sequence. S200: When the fixture 300 is transferred to the washer loading station, the washer is supplied to the fixture 300 through the first loading component 401. S300: When the fixture 300 is transferred to the first dispensing station, the adhesive is applied to the washer through the first dispensing assembly 501. S400: When the fixture 300 is transferred to the magnet loading station, the magnets are stacked on the washer coated with adhesive by the second loading component 402. S500: When the fixture 300 is transferred to the second dispensing station, the adhesive is applied to the magnet by the second dispensing assembly 502. S600 When the jig 300 is transferred to the bottom shell loading station, the bottom shell is stacked on the magnet coated with adhesive by the third loading component 403 to obtain the magnetic circuit semi-finished product. S700: The magnetic circuit semi-finished product is heated and cured by the curing component 700 to obtain the finished magnetic circuit.

[0062] Specifically, after the materials are stacked, the jig 300 continues to flow forward, and is moved horizontally down by the first clamping component 230 onto the lower-positioned second conveying component 220, thereby entering the hot air drying duct 710 of the curing component 700. In the relatively enclosed hot air circulation environment, the adhesive between the multiple layers of materials in the jig 300 is uniformly heated and rapidly cured.

[0063] After step S700, the heat-cured magnetic circuit product arrives at the end of the second conveying assembly 220 along with the fixture 300, and is then clamped back to the unloading station at the beginning of the first conveying assembly 210 via the second clamping assembly 240. The material picking cylinder 620 of the unloading assembly 600 descends to pick up the magnetic circuit product from the fixture 300, and completes magnetic stripping and unloading under the mechanical obstruction of the unloading block 640. The unloaded fixture 300 continues to circulate on the first conveying assembly 210, cyclically executing steps S100 to S700.

[0064] For more details, please refer to the section on the working principle of the aforementioned loudspeaker magnetic circuit assembly equipment; it will not be repeated here.

[0065] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0066] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

[0067] The above provides a detailed description of a loudspeaker magnetic circuit assembly device and method provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A flexible automated assembly equipment for loudspeaker magnetic circuits, characterized in that, include: frame; A fixture for supporting a washer, a magnet, and a bottom shell, wherein the fixture is provided with a limiting structure for limiting the washer, the magnet, and the bottom shell; A first conveying component is disposed on the frame and is used to convey the fixture along a first conveying direction, so that the fixture passes sequentially through the washer loading station, the first dispensing station, the magnet loading station, the second dispensing station and the bottom shell loading station. The first feeding component is located at the washer feeding station on the frame and is used to supply washer to the fixture when the fixture is transferred to the washer feeding station. The first dispensing assembly is located at the first dispensing station on the frame and is used to apply adhesive liquid onto the washer supplied by the first feeding assembly. The second feeding component is located at the magnet feeding station on the frame and is used to supply magnets to the fixture when the fixture moves to the magnet feeding station, so that the magnets are stacked on the washer coated with adhesive. The second dispensing assembly is located at the second dispensing station on the frame and is used to dispense adhesive onto the magnet supplied by the second feeding assembly. The third feeding component is located at the bottom shell feeding station on the frame. It is used to supply the bottom shell to the fixture when the fixture is transferred to the bottom shell feeding station, so that the bottom shell is stacked on the magnet coated with adhesive to obtain a magnetic circuit semi-finished product. as well as A curing component, mounted on the frame, is used to heat and cure the semi-finished magnetic circuit to obtain the finished magnetic circuit.

2. The speaker magnetic circuit flexible automated assembly equipment according to claim 1, characterized in that, Also includes: A second conveying assembly is disposed on the frame for conveying the fixture along a second conveying direction, which is opposite to the first conveying direction. The curing component is located on the transmission path of the second transmission component; The first clamping and conveying component is disposed on the frame near the bottom shell loading station, and is used to move the fixture and the magnetic circuit semi-finished product from the first conveying component to the second conveying component, so that the magnetic circuit semi-finished product is heated and cured by the curing component to obtain the magnetic circuit finished product. The second clamping assembly is located on the frame near the washer loading station. It is used to move the fixture and the finished magnetic circuit from the second conveying assembly to the first conveying assembly for unloading, and to continue to convey the unloaded fixture to the washer loading station for the next round of operation.

3. The speaker magnetic circuit flexible automated assembly equipment according to claim 2, characterized in that, Also includes: A feeding assembly is disposed at the feeding station on the frame and is used to unload the finished magnetic circuit from the fixture to a predetermined position. The feeding station is located upstream of the washer loading station along the first conveying direction. The feeding assembly includes: a picking cylinder capable of three-dimensional spatial displacement; and a material ejection block sleeved outside the picking cylinder. When the material taking cylinder is unloading, the material taking cylinder moves relative to the material ejection block, and the material ejection block is used to scrape the finished magnetic circuit off the material taking cylinder.

4. The speaker magnetic circuit flexible automated assembly equipment according to claim 3, characterized in that, The feeding assembly also includes a pressure plate located below the feeding cylinder. The pressure plate has a guide hole for the feeding cylinder to pass through. When feeding, the feeding cylinder passes through the guide hole to attract the finished magnetic circuit product. The pressure plate is used to block the fixture downward to prevent it from being lifted.

5. The speaker magnetic circuit flexible automated assembly equipment according to claim 4, characterized in that, Also includes: A blocking component and a lifting component are disposed on the first conveying component; the blocking component includes a height-adjustable barrier and a blocking power component for driving the barrier to rise and fall; the lifting component includes a height-adjustable pallet and a lifting power component for driving the pallet to rise and fall; when the fixture approaches the loading, dispensing or unloading station, the blocking power component drives the barrier to rise, blocking and stopping the fixture; the lifting power component drives the pallet to push upward from bottom to top, lifting the fixture and raising it away from the conveying surface of the first conveying component by a predetermined height.

6. A flexible automated assembly equipment for loudspeaker magnetic circuits according to any one of claims 1 to 5, characterized in that, The limiting structure includes a boss on the fixture and a barrier surrounding the boss. The limiting space contour formed by the boss and the barrier is adapted to the shape of the washer, the magnet, or the bottom shell.

7. A flexible automated assembly equipment for loudspeaker magnetic circuits according to any one of claims 1 to 5, characterized in that, The first feeding assembly includes a robotic arm, a transfer unit, and a tray unit; the robotic arm is used to grab materials and place them on the transfer unit; the transfer unit is used to center and correct the materials; the tray unit is used to pick up the centered and corrected materials from the transfer unit and place them in the fixture on the first conveying assembly.

8. The speaker magnetic circuit flexible automated assembly equipment according to claim 7, characterized in that, The transfer unit includes a slide rail, a slide block slidably mounted on the slide rail, and a correction plate mounted on the slide block; the correction plate has multiple sets of correction holes, and the intersection of each set of correction holes is a centering sight for placing materials; a positioning block is slidably inserted into each correction hole, and the slide block is provided with a positioning power component for driving each positioning block to retract toward the centering sight, so as to squeeze and correct the washer, the magnet, or the bottom shell.

9. A flexible automated assembly method for loudspeaker magnetic circuits, characterized in that, Based on the loudspeaker magnetic circuit assembly apparatus as described in any one of claims 1 to 5, the method comprises the following steps: S100. The fixture is conveyed along the first conveying direction by the first conveying component, so that the fixture passes through the washer loading station, the first glue dispensing station, the magnet loading station, the second glue dispensing station and the bottom shell loading station in sequence. S200: When the fixture is transferred to the washer loading station, the washer is supplied to the fixture through the first loading component; S300: When the fixture is transferred to the first dispensing station, the adhesive is applied to the washer through the first dispensing assembly. S400 When the fixture is transferred to the magnet loading station, the magnets are stacked on the washer coated with adhesive by the second loading component; S500: When the fixture moves to the second dispensing station, adhesive is applied to the magnet through the second dispensing assembly. S600. When the fixture is transferred to the bottom shell loading station, the bottom shell is stacked on the magnet coated with adhesive by the third loading component to obtain the magnetic circuit semi-finished product. S700: The magnetic circuit semi-finished product is heated and cured by the curing component to obtain the finished magnetic circuit.

10. The loudspeaker magnetic circuit assembly method according to claim 9, characterized in that, The device includes a feeding assembly, and after step S700, the following step is also included: The magnetic circuit finished product on the fixture is adsorbed by the picking cylinder of the feeding component. After the picking cylinder is moved to the unloading position, the picking cylinder moves upward relative to the unloading block sleeved on its outside, so that the magnetic circuit finished product is scraped off the picking cylinder by the unloading block.

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