A microphone PCB board soldering device

Abstract

This invention belongs to the field of anchor bolt technology, specifically a microphone PCB board welding device, including a welding conveyor; a support frame is fixedly connected to one upper surface of the welding conveyor; an electric cylinder is fixedly connected to the support frame; by sorting qualified and unqualified products by the welding conveyor, qualified products are sent to further processing, and unqualified products are sent for recycling and re-welding, which plays an integrated role in the welding and sorting of capacitors and microphone PCB boards, reducing the production costs increased by defective products flowing into subsequent processes; by sorting defective products in the early stage, ineffective processing of defective products can be reduced, saving labor and material costs, and intercepting defective products can significantly reduce after-sales maintenance costs and brand reputation risks; based on the sorting results determined by the monitor, a judgment quantity is set, and after each judgment quantity is reached, the sorting results can be analyzed to statistically analyze defect types such as welding damage and overheating damage, and reverse-optimize welding parameters.

Description

Technical Field

[0001] This invention belongs to the field of anchor bolt technology, specifically a microphone PCB board welding device. Background Technology

[0002] Microphone PCB board soldering equipment is an automated device specifically designed for precision electronic assembly. It typically includes a high-precision placement module, a temperature-controlled soldering system, a vision positioning system, and a conveying mechanism. Its core function is to accurately place microphone components onto PCB pads and achieve reliable connections through laser soldering. It is also equipped with optical inspection to ensure there are no cold solder joints.

[0003] A patent application with publication number CN120382284A discloses a PCB board welding machine, including a worktable. A support platform is fixedly connected to the upper end of the worktable, and a welding head is slidably installed on the upper end of the support platform. A feeding assembly is provided on one side of the support platform. The feeding assembly includes two first rectangular bars slidably disposed on the upper end of the worktable, and a plurality of clamping assemblies are provided between the two first rectangular bars. This application can drive the L-shaped clamping bars to clamp the wires and then move them to the welding point of the PCB board for welding, so that the workers do not need to approach the welding head of the welding machine during welding, effectively reducing the probability of high temperature burns.

[0004] Soldering is a critical step in the production of electronic devices, especially in the assembly of microphone PCBs. While traditional soldering equipment can protect workers from the risk of burns by isolating the soldering head and keeping operators away from heat sources, such equipment requires higher quality control during mass production, especially for delicate operations like capacitor soldering. When PCBs with defective capacitor soldering are detected, traditional soldering machines lack integration of soldering and sorting, making it difficult to immediately sort and recycle defective PCBs. This results in defective products continuing to be transported and processed, which not only increases production costs but also affects product quality and safety.

[0005] Therefore, the present invention provides a microphone PCB board soldering device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A microphone PCB board welding device of the present invention includes a welding conveyor; a support frame is fixedly connected to one upper surface of the welding conveyor; a first electric cylinder is fixedly connected to the support frame; a welding device is fixedly connected to the output end of the first electric cylinder; a monitor is fixedly connected to the outer wall of the welding device; multiple slide rails are fixedly connected to the conveyor belt of the welding conveyor, and the multiple slide rails are spaced apart; a support plate is slidably connected to the slide rails through a first electric slider.

[0008] Preferably, a servo motor is fixedly connected to the welding conveyor near the support frame; a fixed frame is fixedly connected to the output end of the servo motor; sliding plates are slidably connected to both ends of the fixed frame; multiple elastic elements are fixedly connected to the sliding plates, and the elastic elements are fixed between the sliding plates and the elastic elements; a pressure plate is fixedly connected to the outer wall of the welder and above the monitor; a clamping assembly is provided at the bottom end of the sliding plate, and the clamping assembly is used to test the bonding strength of the capacitor after welding.

[0009] Preferably, the clamping assembly includes a second electric slider and a clamping plate; the two second electric sliders are slidably connected to each other at the bottom end of the sliding plate; the clamping plate is fixedly connected to the bottom end of the second electric slider.

[0010] Preferably, a V-shaped groove is provided on one side of the clamping plate; the V-shaped groove is located on the side where the two clamping plates are close to each other.

[0011] Preferably, the inner wall of the V-shaped groove is fixedly connected to a protective pad; the outer wall of the protective pad is fixedly connected to anti-slip protrusions.

[0012] Preferably, two air boxes are fixedly connected to each other on the fixed frame; a nozzle is fixedly connected to the bottom outer wall of the air box; a connecting rod is fixedly connected to the outer wall of the sliding plate, and the connecting rod is slidably connected to the inner wall of the air box; a pressing plate is slidably connected inside the air box, and the pressing plate is fixedly connected to the end of the connecting rod away from the sliding plate.

[0013] Preferably, two collection boxes are fixedly connected to the welding conveyor; the collection boxes are located below the end of the fixed frame.

[0014] Preferably, an electronic scale is fixedly connected inside each of the two collection boxes; the electronic scale can be electrically connected to the welding conveyor.

[0015] Preferably, a recycling conveyor is fixedly connected to the side of the welding conveyor away from the support frame; multiple suspension frames are fixedly connected to the conveyor belt of the recycling conveyor; a second electric cylinder is fixedly connected to the bottom end of the suspension frame; and a vacuum suction cup is fixedly connected to the output end of the second electric cylinder.

[0016] Preferably, a limiting groove is formed on the pallet; the cross-sectional shape of the limiting groove is square.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The microphone PCB board welding device of the present invention sorts qualified and unqualified products and transports them by a welding conveyor. Qualified products are sent for further processing, while unqualified products are sent for recycling and re-welding. This device integrates the welding and sorting of capacitors and microphone PCB boards, reducing the production costs increased by defective products flowing into subsequent processes. By sorting defective products at an early stage, ineffective processing of defective products can be reduced, saving labor and material costs. Intercepting defective products can significantly reduce after-sales maintenance costs and brand reputation risks. Based on the sorting results determined by the monitor, a judgment quantity is set. After each judgment quantity is reached, the sorting results can be analyzed to statistically analyze defect types such as welding damage and overheating damage, and the welding parameters can be optimized in reverse.

[0019] 2. The microphone PCB board welding device of the present invention uses two opposing clamping plates to hold the capacitor on its outer wall. As the first electric cylinder drives the pressure plate to reset, the two clamping plates pull up the capacitor. If the capacitor welding is qualified, the two clamping plates slide off the outer wall of the capacitor. If the capacitor welding is unqualified, the capacitor will be held by the two clamping plates and removed from the PCB board. This serves to test the bonding strength of the capacitor after welding. The V-shaped groove of the clamping plate fits the outer wall of the capacitor. The V-shaped groove of the clamping plate can adapt to the clamping of different models of capacitors, improve the adaptability of the clamping component to capacitors of different specifications, ensure stable clamping and avoid unnecessary damage to the capacitor, and enhance the flexibility and practicality of the device. In addition, the design of the V-shaped groove also makes it easy to observe the state of the capacitor during the clamping process, which helps to detect potential welding problems in time. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the No. 1 electric cylinder in this invention;

[0023] Figure 3 This is a schematic diagram of the pressure plate in this invention;

[0024] Figure 4 This is a schematic diagram of the air box structure in this invention;

[0025] Figure 5 This is a schematic diagram of the clamping plate in this invention;

[0026] Figure 6 This is a schematic diagram of the recycling conveyor in this invention.

[0027] In the diagram: 1. Welding conveyor; 11. Support frame; 12. Electric cylinder No. 1; 13. Welder; 14. Monitor; 15. Slide rail frame; 16. Pallet; 2. Servo motor; 21. Fixing frame; 22. Sliding plate; 23. Elastic element; 24. Pressing plate; 3. Electric slider No. 2; 31. Clamping plate; 4. Protective pad; 5. Air box; 51. Nozzle; 52. Connecting rod; 53. Extrusion plate; 6. Collection box; 7. Electronic scale; 8. Recycling conveyor; 81. Suspension frame; 82. Electric cylinder No. 2; 83. Vacuum suction cup. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figures 1 to 3 As shown in the embodiment of the present invention, a microphone PCB board welding device includes a welding conveyor 1; a support frame 11 is fixedly connected to the upper surface of one side of the welding conveyor 1; a first electric cylinder 12 is fixedly connected to the support frame 11; a welder 13 is fixedly connected to the output end of the first electric cylinder 12; a monitor 14 is fixedly connected to the outer wall of the welder 13; multiple slide rails 15 are fixedly connected to the conveyor belt of the welding conveyor 1, and the multiple slide rails 15 are spaced apart; a tray 16 is slidably connected to the slide rail 15 via a first electric slider; when welding capacitors to microphone PCB boards in batches, the welding conveyor 1 is used as the carrier for conveying and welding PCB boards. The support frame 11 supports the first electric cylinder 12 and the welder 13 at a position above the welding conveyor 1. First, each PCB board is placed sequentially on multiple trays 16, and then the trays 16 on the slide rails 15 are conveyed with the welding conveyor 1 until the PCB board is delivered to a position below the welder 13. Then, the external robotic arm picks up a capacitor and places it on the PCB board. At this time, the welding conveyor 1 stops conveying. Then, the output end of the first electric cylinder 12 drives the welder 13 to extend downward. The output end of the welder 13 performs laser welding on the capacitor to fix the capacitor on the PCB board. The welding conveyor 1 continues to convey the welded PCB board. The monitor 14 visually detects the welding status during the PCB board conveying process and judges whether the welded product is qualified. If the product is qualified, it continues to be conveyed by the welding conveyor 1. If the product welding is unqualified, the first electric slider drives the pallet 16 to slide from one end of the slide rail frame 15 to the other end, and the qualified and unqualified products are sorted and then conveyed by the welding conveyor 1 until they are conveyed to the end of the welding conveyor 1 for separate processing. Qualified products are sent to continue deep processing, and unqualified products are sent to be recycled and re-welded. This plays a role in welding and sorting the capacitor and microphone PCB board, reducing the production cost increase caused by defective products continuing to flow into subsequent processes.

[0030] This application is mainly aimed at the special scenario of welding micro capacitors to PCB boards. Traditional reflow soldering may affect adjacent components due to heat conduction. Laser can heat precisely in a localized area. If ordinary welding is required, the welder 13 can be replaced with a reflow soldering device, which can still complete the welding and sorting of capacitors to PCB boards.

[0031] By sorting out defective welded products at an early stage, ineffective processing of defective products can be reduced, saving labor and material costs. Intercepting defective products can significantly reduce after-sales maintenance costs and brand reputation risks.

[0032] Based on the sorting results determined by the monitor 14, a judgment quantity is set. After each judgment quantity is reached, the sorting results can be analyzed to statistically analyze defect types such as welding damage and overheating damage, and the welding parameters can be optimized in reverse.

[0033] like Figures 1 to 5As shown, a servo motor 2 is fixedly connected to the welding conveyor 1 near the support frame 11; a fixed frame 21 is fixedly connected to the output end of the servo motor 2; sliding plates 22 are slidably connected to both ends of the fixed frame 21; multiple elastic elements 23 are fixedly connected to the sliding plate 22, and the elastic elements 23 are fixed between the sliding plate 22 and the elastic elements 23; a pressure plate 24 is fixedly connected to the outer wall of the welder 13 near the monitor 14; a clamping assembly is provided at the bottom end of the sliding plate 22, which is used to test the bonding strength of the capacitor after welding; when the capacitor is welded... After being attached to the PCB board, the capacitor is first visually inspected by the monitor 14. Then, the visually inspected capacitor is transported to one side of the servo motor 2. As the output of the first electric cylinder 12 drives the welder 13 to weld the next PCB board, the pressure plate 24 simultaneously presses down on the sliding plate 22, which slides onto the fixed frame 21. The elastic element 23 is compressed and stretched under force. Subsequently, the clamping assembly is pressed and delivered to the welded capacitor. The clamping assembly performs a post-weld bonding strength test on the capacitor. The clamping force varies depending on the welding method and model. A standard test force is set, and it does not... Damage to the capacitor may occur. If the capacitor is soldered firmly enough, the clamping assembly can release the capacitor as the first electric cylinder 12 resets. If the capacitor is not soldered firmly enough, the clamping assembly can pick up the capacitor and separate it from the PCB board as the first electric cylinder 12 drives the welder 13 to reset. Then, the pressure plate 24 disengages from the sliding plate 22, and the output of the servo motor 2 drives the fixing frame 21 to rotate, sending the clamped capacitor to the other end of the fixing frame 21 for unloading and recycling. The two clamping assemblies alternate. This device serves to test the firmness of the capacitor soldering and to recycle unqualified capacitors. The testing process requires no manual intervention, has a high degree of automation, saves labor costs, and avoids errors that may be caused by manual testing, thus improving the accuracy and reliability of the test. This device not only achieves efficient soldering of capacitors to microphone PCB boards, but also enables real-time monitoring and sorting of soldering quality during the soldering process, greatly improving production efficiency and product quality. In addition, the device is flexibly designed and can adjust the soldering method and testing intensity according to actual needs. It is suitable for soldering capacitors of different specifications and types to PCB boards, and has strong versatility and practicality.

[0034] The clamping assembly includes a second electric slider 3 and a clamping plate 31. The two second electric sliders 3 are slidably connected to the bottom end of the sliding plate 22. The clamping plate 31 is fixed to the bottom end of the second electric slider 3. When the sliding plate 22 drives the clamping assembly to slide down to test the bonding strength of the capacitor after welding, the pressure plate 24 presses down on the sliding plate 22 and the clamping assembly to slide down until the two opposing clamping plates 31 are located on both sides of the capacitor. Then, the two second electric sliders 3 slide towards each other synchronously. The clamping force for testing the bonding strength after welding is adaptively adjusted according to the sliding distance of the two second electric sliders 3, so that the two clamping plates 31 are clamped relative to each other on the outer wall of the capacitor. As the first electric cylinder 12 drives the pressure plate 24 to reset, the two clamping plates 31 pull up the capacitor. If the capacitor welding is qualified, the two clamping plates 31 slide off the outer wall of the capacitor. If the capacitor welding is unqualified, the capacitor will be clamped by the two clamping plates 31 and detached from the PCB board under its own weight, thus playing the role of testing the bonding strength of the capacitor after welding.

[0035] A V-shaped groove is provided on one side of the clamping plate 31; the V-shaped groove is located on the side where the two clamping plates 31 are close to each other; when the two clamping plates 31 are used to test the bonding strength after welding the capacitor, the V-shaped groove of the clamping plate 31 fits against the outer wall of the capacitor. The V-shaped groove of the clamping plate 31 can adapt to the clamping of different types of capacitors, improve the adaptability of the clamping assembly to capacitors of different specifications, ensure stable clamping and avoid unnecessary damage to the capacitor, enhance the flexibility and practicality of the device. In addition, the design of the V-shaped groove also makes it easy to observe the state of the capacitor during the clamping process, which helps to detect potential welding problems in time.

[0036] The inner wall of the V-shaped groove is fixedly connected to a protective pad 4; the outer wall of the protective pad 4 is fixedly connected to anti-slip protrusions; when the two clamping plates 31 clamp the outer wall of the capacitor, the four protective pads 4 are respectively attached to the outer wall of the capacitor before the two clamping plates 31 clamp the outer wall of the capacitor, reducing the damage caused by the two clamping plates 31 directly clamping the outer wall of the capacitor, and more adaptably fitting the outer wall of different models of capacitors. The anti-slip protrusions increase the friction with the outer wall of the capacitor, ensuring that the clamping components will not easily slip off due to external force during the test, improving the accuracy and stability of the test. At the same time, the design of the anti-slip protrusions can also perform a slight cleaning effect on the outer wall of the capacitor, removing small impurities on the surface, further ensuring the welding quality and the reliability of the test.

[0037] like Figure 1 , Figure 2 and Figure 4As shown, two air boxes 5 are fixedly connected to each other on the fixed frame 21; a nozzle 51 is fixedly connected to the bottom outer wall of the air box 5; a connecting rod 52 is fixedly connected to the outer wall of the sliding plate 22, and the connecting rod 52 is slidably connected to the inner wall of the air box 5; a pressing plate 53 is slidably connected inside the air box 5, and the pressing plate 53 is fixed to the end of the connecting rod 52 away from the sliding plate 22; when the sliding plate 22 slides down and drives the clamping assembly to perform a bonding strength test on the capacitor after welding, the elastic element 23 pulls the sliding plate 22 to return to its original position, and the connecting rod 52 then squeezes the cavity inside the air box 5, so that the gas in the cavity passes to the nozzle 51. The nozzle 51 blows air onto the capacitor welding area. If the capacitor is not clamped away, the blown air can cool the welding area and improve its welding stability. If the capacitor is clamped away, the air blown by the nozzle 51 can reduce impurities at the PCB welding area and improve the efficiency of PCB board recycling.

[0038] like Figure 1 and Figure 2 As shown, two collection boxes 6 are fixedly connected to the welding conveyor 1; the collection boxes 6 are located below the end of the fixed frame 21; when unqualified capacitors are clamped and recycled, the output end of the servo motor 2 drives the clamping components at both ends of the fixed frame 21 to alternate. The two collection boxes 6 are respectively standard capacitor storage containers and defective capacitor storage containers. According to the condition of the recycled capacitors, they are sorted and the standard and defective capacitors are placed in the two collection boxes 6 respectively. Then, the two second electric sliders 3 slide in opposite directions, so that the capacitors are detached from the two clamping plates 31 and fall into one collection box 6, which plays the role of sorting and recycling capacitors.

[0039] Both collection boxes 6 are equipped with electronic scales 7. These scales 7 are electrically connected to the welding conveyor 1. After the capacitors are sorted and recycled, they fall into the two collection boxes 6, each containing an electronic scale 7. The scales 7 measure the weight of the recycled capacitors at set intervals and send the measured weights back to the main controller and the welding conveyor 1. The main controller determines whether a shutdown for maintenance is necessary and then sends a signal to the welding conveyor 1 for control. This system determines whether maintenance is required based on the weight of the recycled capacitors, preventing equipment damage due to prolonged operation. Performance degradation and malfunctions are prevented, ensuring the continuity and stability of production. When the weight of recycled defective capacitors reaches a preset threshold, the main controller can automatically send a shutdown signal, prompting operators to inspect and maintain the equipment, and promptly eliminate potential faults. At the same time, weight monitoring of the standard capacitor storage container also helps to promptly detect potential problems during capacitor storage, such as capacitor leakage and poor container sealing, so that corresponding measures can be taken to ensure capacitor quality and storage safety. Through intelligent weight monitoring and judgment, the device achieves comprehensive control over the production process, improving production efficiency and product quality.

[0040] like Figure 1 , Figure 2 and Figure 6 As shown, a recycling conveyor 8 is fixedly connected to the side of the welding conveyor 1 away from the support frame 11; multiple suspension frames 81 are fixedly connected to the conveyor belt of the recycling conveyor 8; a second electric cylinder 82 is fixedly connected to the bottom end of the suspension frame 81; a vacuum suction cup 83 is fixedly connected to the output end of the second electric cylinder 82; after the capacitor is recycled, the first electric slider can move the microphone PCB board on the tray 16 to the side of the slide rail 15 near the recycling conveyor 8, then the welding conveyor 1 stops conveying, the output end of the second electric cylinder 82 suspended by the suspension frame 81 extends downward, driving the vacuum suction cup 83 connected to the built-in vacuum pump of the recycling conveyor 8 to pick up the recycled microphone PCB board, and then the recycling conveyor 8 drives the recycled PCB board to the welding loading area for reloading. It should be noted that... Yes, some of the recycled PCBs need to have their solder joints cleaned during transport to keep them clean. This helps to recycle and reuse defective PCBs, reducing material waste and lowering production costs. Simultaneously, the automated transport process improves production efficiency and ensures production continuity and stability. Furthermore, the design of the vacuum suction cup 83 can adapt to PCBs of different sizes and shapes, enhancing the device's versatility and practicality. During transport, the output of the second electric cylinder 82 can be adjusted according to the actual size of the PCB, ensuring that the vacuum suction cup 83 can tightly adhere to the PCB, achieving stable suction and transport. This avoids problems such as PCB damage and falling due to unstable suction, further guaranteeing production quality and efficiency.

[0041] like Figure 1 and Figure 2 As shown, a limiting groove is formed on the tray 16; the cross-sectional shape of the limiting groove is square; when feeding the microphone PCB board, the PCB board is placed in the square limiting groove on the tray 16. The PCB board in this application is square, so the limiting groove is set to square. The limiting groove can be adaptively set according to different models of PCB boards to adapt to different shapes of PCB boards, ensuring that the PCB board is stable and does not shake during the feeding process, improving the accuracy and efficiency of feeding. The design of the square limiting groove also facilitates the positioning of the PCB board, so that the robot can accurately pick up the capacitor and place it on the PCB board, avoiding welding errors caused by inaccurate positioning, further ensuring the quality and stability of welding. In addition, the setting of the limiting groove can also prevent the PCB board from shifting and falling during the transportation process, ensuring the continuity and safety of production.

[0042] Working process: When batch soldering capacitors to microphone PCBs, the soldering conveyor 1 serves as the carrier for transporting and soldering the PCBs. The support frame 11 supports the first electric cylinder 12 and the soldering machine 13, which are positioned above the soldering conveyor 1. First, each PCB is placed sequentially on multiple trays 16. Then, the trays 16 on the slide rail 15 are transported by the soldering conveyor 1 until the PCB is delivered to the position below the soldering machine 13. Subsequently, the external robotic arm picks up a capacitor and places it on the PCB. At this point, the soldering conveyor 1 stops transporting, and then the output end of the first electric cylinder 12 drives the soldering machine 13 to extend downwards. The output of welder 13 performs laser welding on the capacitor, fixing it to the PCB board. Welding conveyor 1 continues to transport the welded PCB board. Monitor 14 visually inspects the welding process during PCB board transport and determines whether the welded product is qualified. If the product is qualified, it continues to be transported by welding conveyor 1. If the product welding is unqualified, the first electric slider drives the pallet 16 to slide from one end of the slide rail 15 to the other, separating qualified and unqualified products before they are transported by welding conveyor 1 until they reach the end of welding conveyor 1 for further processing. Qualified products are sent for further deep processing, while unqualified products are sent for further processing. Qualified products are sent for recycling and re-welding, serving as a means of welding and sorting the capacitors to the microphone PCB board, reducing the increased production costs caused by defective products continuing to flow into subsequent processes. After the capacitors are welded onto the PCB board, they are first visually inspected by monitor 14. Then, the visually inspected capacitors are transported to one side of servo motor 2. As the output of the first electric cylinder 12 drives the welder 13 to weld the next PCB board, the pressure plate 24 simultaneously presses down on the sliding plate 22, which slides onto the fixed frame 21. The elastic element 23 is squeezed and stretched under force. Then, the clamping assembly is pressed and delivered to the welded capacitor. The clamping assembly clamps the capacitor. The clamping force varies depending on the welding method and model. A standard test force is set that will not damage the capacitor. If the capacitor is welded firmly enough, the clamping assembly can release the capacitor as the first electric cylinder 12 resets. If the capacitor is not welded firmly enough, the clamping assembly can lift the capacitor and separate it from the PCB board when the first electric cylinder 12 drives the welder 13 to reset. Then the pressure plate 24 is separated from the sliding plate 22, and the output end of the servo motor 2 drives the fixing frame 21 to rotate, sending the clamped capacitor to the other end of the fixing frame 21 for unloading and recycling. The two clamping assemblies alternate.This device serves to test the strength of capacitor solder joints and to recycle defective capacitors. The testing process requires no manual intervention, is highly automated, saves labor costs, and avoids errors that may arise from manual testing, thus improving accuracy and reliability. This device not only enables efficient soldering of capacitors to microphone PCBs but also allows for real-time monitoring and sorting of solder joint quality, significantly improving production efficiency and product quality. Furthermore, the device's flexible design allows for adjustments to the soldering method and testing intensity according to actual needs, making it suitable for soldering capacitors of different specifications and types to PCBs. The universality and practicality; when the sliding plate 22 drives the clamping assembly to slide down to test the bonding strength of the capacitor after welding, the pressing plate 24 presses down the sliding plate 22 and the clamping assembly to slide down until the two opposing clamping plates 31 are located on both sides of the capacitor. Then, the two second electric sliders 3 slide towards each other synchronously. The clamping force for the bonding strength test after welding is adaptively adjusted according to the sliding distance of the two second electric sliders 3, so that the two clamping plates 31 are clamped relative to each other on the outer wall of the capacitor. As the first electric cylinder 12 drives the pressing plate 24 to reset, the two clamping plates 31 pull up the capacitor. If the capacitor welding is qualified, the two clamping plates 31 slide off the outer wall of the capacitor. If the capacitor fails to meet the standard, it will be clamped and detached from the PCB board by the two clamping plates 31 under its own weight, thus serving as a test of the bonding strength of the capacitor after soldering. When the two clamping plates 31 test the bonding strength of the capacitor after soldering, the V-shaped grooves of the clamping plates 31 conform to the outer wall of the capacitor. The V-shaped grooves of the clamping plates 31 can accommodate different types of capacitors, improving the compatibility of the clamping assembly with different specifications of capacitors, ensuring stable clamping without causing unnecessary damage to the capacitor, and enhancing the flexibility and practicality of the device. In addition, the V-shaped groove design facilitates observation of the capacitor's state during clamping, helping to promptly identify potential problems. The welding problem; when the two clamping plates 31 clamp the outer wall of the capacitor, the four protective pads 4 are respectively attached to the outer wall of the capacitor before the two clamping plates 31 clamp the outer wall of the capacitor, reducing the damage caused by the two clamping plates 31 directly clamping the outer wall of the capacitor, and more adapting to the outer wall of different models of capacitors. The anti-slip protrusions increase the friction with the outer wall of the capacitor, ensuring that the clamping components will not easily slip off due to external force during the test, improving the accuracy and stability of the test. At the same time, the design of the anti-slip protrusions can also perform a slight cleaning effect on the outer wall of the capacitor, removing small impurities on the surface, further ensuring the welding quality and the reliability of the test;

[0043] After the sliding plate 22 slides down and drives the clamping assembly to perform a bonding strength test on the capacitor after welding, the elastic element 23 pulls the sliding plate 22 to return to its original position. The connecting rod 52 then squeezes the cavity inside the air box 5, allowing the gas in the cavity to pass through the nozzle 51. The nozzle 51 blows air onto the capacitor welding area. If the capacitor is not clamped away, the blown air can cool the welding area and improve its welding stability. If the capacitor is clamped away, the air blown by the nozzle 51 can reduce impurities at the PCB welding area and improve the efficiency of PCB board recycling.

[0044] When defective capacitors are clamped and recycled, the output of servo motor 2 drives the clamping components at both ends of the fixing frame 21 to alternate. Two collection boxes 6 serve as standard capacitor storage containers and defective capacitor storage containers, respectively. The capacitors are sorted according to their condition, with standard and defective capacitors placed separately in the two collection boxes 6. Then, two second-order electric sliders 3 slide in opposite directions, causing the capacitors to detach from the two clamping plates 31 and fall into one collection box 6, thus achieving the function of capacitor sorting and recycling. After sorting and recycling, the capacitors fall into the two collection boxes 6, each equipped with an electronic scale 7. The electronic scales 7 measure the weight of the recycled capacitors according to a set time. The weight measurements from the two electronic scales 7 are fed back to the main controller and welding conveyor 1. The main controller determines whether a shutdown for maintenance is necessary. The main controller sends signals to welding conveyor 1 for control operations, determining whether maintenance shutdown is needed based on the weight of the recycled capacitors. This prevents equipment performance degradation and malfunctions due to prolonged operation, ensuring the continuity and stability of production. When the weight of recycled defective capacitors reaches a preset threshold, the main controller automatically sends a shutdown signal, prompting operators to inspect and maintain the equipment, promptly eliminating potential faults. Simultaneously, weight monitoring of the standard capacitor storage container helps to promptly detect potential problems during capacitor storage, such as capacitor leakage and poor container sealing, allowing for appropriate measures to be taken to ensure capacitor quality and storage safety. Through intelligent weight monitoring and judgment, this device achieves comprehensive control over the production process, improving production efficiency and product quality.

[0045] After the capacitor is recycled, the first electric slider moves the microphone PCB board on the tray 16 to the side of the slide rail 15 near the recycling conveyor 8. Then, the welding conveyor 1 stops conveying, and the output end of the second electric cylinder 82 suspended by the suspension frame 81 extends downward, driving the vacuum suction cup 83 connected to the built-in vacuum pump of the recycling conveyor 8 to pick up the recycled microphone PCB board. The recycling conveyor 8 then transports the recycled PCB board to the welding loading area for reloading. It should be noted that some recycled PCB boards require cleaning of the welding points during transport to maintain cleanliness and facilitate the recycling and reuse of defective PCB boards. The use of vacuum suction cup 83 reduces material waste and lowers production costs. At the same time, the automated transfer process improves production efficiency and ensures the continuity and stability of production. In addition, the design of vacuum suction cup 83 can adapt to PCB boards of different sizes and shapes, enhancing the versatility and practicality of the device. During the transfer process, the output end of the second electric cylinder 82 can be adjusted according to the actual size of the PCB board to ensure that vacuum suction cup 83 can closely adhere to the PCB board, achieving stable suction and transfer. This avoids problems such as damage and falling of PCB boards due to unstable suction, further ensuring the quality and efficiency of production.

[0046] When loading the microphone PCB board, the PCB board is placed in the square limiting groove on the tray 16. The PCB board in this application is square, so the limiting groove is set to square. The limiting groove can be adaptively set according to different models of PCB boards to accommodate different shapes of PCB boards, ensuring that the PCB board is stable and does not shake during the loading process, improving the accuracy and efficiency of loading. The design of the square limiting groove also facilitates the positioning of the PCB board, so that the robot can accurately pick up the capacitor and place it on the PCB board, avoiding soldering errors caused by inaccurate positioning, and further ensuring the quality and stability of soldering. In addition, the setting of the limiting groove can also prevent the PCB board from shifting and falling during the transportation process, ensuring the continuity and safety of production.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microphone PCB board soldering device, characterized in that: The system includes a welding conveyor; a support frame is fixedly connected to the upper surface of one side of the welding conveyor; a first electric cylinder is fixedly connected to the support frame; a welder is fixedly connected to the output end of the first electric cylinder; a monitor is fixedly connected to the outer wall of the welder; multiple slide rails are fixedly connected to the conveyor belt of the welding conveyor, and the multiple slide rails are spaced apart; a support plate is slidably connected to the slide rail via a first electric slider. A servo motor is fixedly connected to the welding conveyor near the support frame; a fixed frame is fixedly connected to the output end of the servo motor; sliding plates are slidably connected to both ends of the fixed frame; multiple elastic elements are fixedly connected to the sliding plates, and the elastic elements are fixed between the sliding plates and the elastic elements; a pressure plate is fixedly connected to the outer wall of the welder and above the monitor; a clamping assembly is provided at the bottom end of the sliding plate, which is used to test the bonding strength of the capacitor after welding. The clamping assembly includes a second electric slider and a clamping plate; the two second electric sliders are slidably connected to the bottom end of the sliding plate; the clamping plate is fixed to the bottom end of the second electric slider. A V-shaped groove is provided on one side of the clamping plate; the V-shaped groove is located on the side where the two clamping plates are close to each other; The inner wall of the V-shaped groove is fixedly connected to a protective pad; the outer wall of the protective pad is fixedly connected to anti-slip protrusions. Two air boxes are fixedly connected to each other on the fixed frame; a nozzle is fixedly connected to the bottom outer wall of the air box; a connecting rod is fixedly connected to the outer wall of the sliding plate, and the connecting rod is slidably connected to the inner wall of the air box; an extrusion plate is slidably connected inside the air box, and the extrusion plate is fixedly connected to the end of the connecting rod away from the sliding plate.

2. The microphone PCB board welding device according to claim 1, characterized in that: Two collection boxes are fixedly connected to the welding conveyor; the collection boxes are located below the end of the fixed frame.

3. The microphone PCB board welding device according to claim 2, characterized in that: Both collection boxes are equipped with electronic scales; the electronic scales are electrically connected to the welding conveyor.

4. The microphone PCB board welding device according to claim 1, characterized in that: A recycling conveyor is fixedly connected to the side of the welding conveyor away from the support frame; multiple suspension frames are fixedly connected to the conveyor belt of the recycling conveyor; a second electric cylinder is fixedly connected to the bottom end of the suspension frame; and a vacuum suction cup is fixedly connected to the output end of the second electric cylinder.

5. The microphone PCB board welding device according to claim 1, characterized in that: The pallet has a limiting groove; the limiting groove has a square cross-sectional shape.

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