A soldering apparatus and method for a female connector

Abstract

The application discloses a soldering device and method for a row-mother connector, and relates to the technical field of electronic manufacturing. The application comprises a framework, an embedded frame and a workbench, the embedded frame is stably installed on the framework through bolts, the workbench is fixedly installed at the top end of the framework, material conveying assemblies, automatic pushing assemblies, pin correcting assemblies, vertical conveying assemblies and driving assemblies are sequentially arranged on the embedded frame, a welding mechanical arm and a PCB plate fixing clamp are arranged at the top end of the workbench and are used in cooperation with the vertical conveying assemblies; the automatic pushing assemblies and the pin correcting assemblies are arranged, the automatic pushing assemblies push the row-mother to complete feeding and transfer at the same time, the pin correcting assemblies are synchronously driven to start operation, the double correcting plates are synchronously driven to approach and reset through a transmission structure, the flexible clamping correcting space is formed in cooperation with the fixed plate, the row-mother pins are precisely corrected, the bending and deviation of the row-mother pins can be effectively corrected, and the arrangement of the pins is ensured to be neat.

Description

Technical Field

[0001] This invention relates to the field of electronic manufacturing technology, specifically to a soldering apparatus and method for female connectors. Background Technology

[0002] Female connectors are a common type of electronic connector, primarily used to transmit and connect signals and current in circuits. They are widely used in the internal or external interfaces of PCBs and electronic devices. In the soldering connection of female connectors to PCBs, it is usually necessary to first accurately align the female connectors to the preset pad positions on the PCB before soldering to secure them.

[0003] In the placement and docking process of female connectors, their metal pins are prone to bending and deformation due to external impacts, improper operation, or stress release. This problem directly compromises the alignment accuracy between the female connector and the PCB board, causing the pins to fail to accurately align with the pads, leading to issues such as cold solder joints, solder bridges, or soldering failures, ultimately reducing the reliability of the circuit connection. Secondly, during manual handling of female connectors, operational deviations can easily cause the female connectors to tilt or shift in position, making it impossible to accurately dock with subsequent workstations. Additional personnel are needed to specifically check and adjust the female connectors' posture, which directly increases labor costs and prolongs the production time of a single process, slowing down the overall production rhythm. To address these issues, the inventor proposes a soldering device and method for female connectors to solve the above problems. Summary of the Invention

[0004] To address the issues of pin alignment and orderly delivery in female connectors, the present invention aims to provide a soldering apparatus and method for female connectors.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a soldering device for female connectors, comprising a frame, an inner frame and a worktable, wherein the inner frame is securely mounted on the frame by bolts, and the worktable is fixedly mounted on the top of the frame. The inner frame is sequentially provided with a material conveying component, an automatic pushing component, a pin correction component, a vertical conveying component and a driving component. The top of the worktable is provided with a welding robotic arm and a PCB board fixing clamp that cooperate with the vertical conveying component.

[0006] Preferably, the material conveying assembly includes two symmetrically distributed conveying shafts, a first conveyor shaft and a second conveyor shaft. Both conveying shafts are rotatably mounted on an internal frame. A first synchronous pulley is fixedly fitted on the outer wall of the first conveyor shaft, and a second synchronous pulley is fixedly fitted on the outer wall of the second conveyor shaft. A first conveyor belt is fitted on the outer wall of the two first synchronous pulleys, and a second conveyor belt is fitted on the outer wall of the two second synchronous pulleys. Several equally spaced push blocks are fixedly fitted on the outer wall of the second conveyor belt. A guide frame, which cooperates with the first and second conveyor shafts, is fixedly installed inside the internal frame for conveying guidance. The first and second conveyor shafts located in the middle are connected by a synchronous pulley transmission group. A first drive shaft is located directly below the first conveyor shaft in the middle and is rotatably mounted on the internal frame. A drive wheel is fixedly fitted on the outer wall of the first drive shaft, and a driven wheel is fixedly fitted on the outer wall of the first conveyor shaft in the middle. The drive wheel and the driven wheel are meshed together.

[0007] Preferably, the pin correction assembly includes a top frame and a fixed frame. The top frame is fixedly installed on the top of the built-in frame, and the fixed frame is securely installed on the bottom of the top frame near the second conveyor belt by bolts. A fixed plate is fixedly installed at the bottom of the fixed frame. Two symmetrically distributed sliding plates are slidably provided on the top of the top frame via a slide rail. A correction plate that cooperates with the fixed plate is securely installed at the bottom of the sliding plate. A top plate is fixedly provided directly above the fixed frame. A rotating plate is rotatably installed at the center of the top of the top plate. Both ends of the rotating plate are rotatably hinged to connecting rods, and the other end of the connecting rod is rotatably hinged to the center of the top of the corresponding sliding plate. A drive shaft is rotatably installed at the center of the top of the top of the top frame near the support plate via a bearing seat. A secondary shaft is rotatably installed at the top of the top of the top of the top frame near the drive shaft via a bearing seat. The drive shaft and the secondary shaft are connected by a bevel gear set. An eccentric wheel is fixedly installed at the end of the secondary shaft. A pull rod is rotatably installed at the eccentric end of the eccentric wheel, and the pull rod is rotatably connected to the top of the adjacent sliding plate.

[0008] Preferably, the automatic feeding assembly includes a support plate and two symmetrically distributed rotating shafts. The support plate is fixedly installed on the top of the built-in frame near the top frame, and one end of the top frame is fixedly connected to the support plate. The two rotating shafts are rotatably installed on the support plate. A guide shaft is fixedly installed at the end of the rotating shaft. A sliding frame is slidably provided on the top of the guide shaft. Two symmetrically distributed push rods are fixedly installed at the end of the sliding frame. A push plate is fixedly installed at the end of the push rod. An inclined groove is opened on the outer wall of the guide shaft, and the two ends of the inclined groove are connected through a transverse groove. A guide bolt is fixedly installed in the middle of the bottom end of the sliding frame, and the guide bolt slides in the inclined groove and the transverse groove.

[0009] Preferably, the vertical conveying assembly includes a feeding frame and two symmetrically distributed limiting frames. The feeding frame is vertically slidably disposed directly below the PCB board fixing fixture. The two limiting frames are slidably installed on both sides of the inner wall of the feeding frame. Two symmetrically distributed inner cylinders are fixedly installed at the bottom of the feeding frame. An outer cylinder is slidably sleeved on the outer wall of the inner cylinder, and the bottom of the outer cylinder is fixedly connected to the top of the inner frame. A lifting electric cylinder is provided between the two outer cylinders, and the bottom end and the drive end of the lifting electric cylinder are fixedly connected to the middle of the bottom end of the inner frame and the feeding frame, respectively. Two symmetrically distributed fixed shafts are fixedly installed on the outer side of the limiting frames, and the fixed shafts slide through the feeding frame. A damping spring is sleeved on the outer wall of the fixed shaft, and the two ends of the damping spring are fixedly connected to the inner wall of the limiting frame and the feeding frame, respectively.

[0010] Preferably, guide rods are slidably installed at both ends of the sliding frame, and the guide rods are fixedly connected to the support plate. A return spring is sleeved on the outer wall of the guide rod, and the two ends of the return spring are fixedly connected to the sliding frame and the support plate respectively.

[0011] Preferably, the drive assembly includes a drive shaft and a half gear. The drive shaft is rotatably mounted on an internal frame, and the half gear is fixedly sleeved on the outer wall of the drive shaft. A second drive shaft is rotatably mounted on the side of the internal frame away from the first drive shaft. A first gear is fixedly sleeved on the outer wall of the first drive shaft, and a second gear is fixedly sleeved on the outer wall of the second drive shaft. Both the first and second gears are meshed with the half gear. A drive motor is fixedly mounted on the top of the internal frame near the drive shaft, and the drive end of the drive motor is connected to the drive shaft via a belt pulley transmission group. The second drive shaft is connected to the drive shaft and the two rotating shafts via a synchronous pulley transmission group.

[0012] A method for using a soldering apparatus for a female connector includes the following steps:

[0013] S1. First, the PCB board is precisely placed in the PCB board fixing fixture. The PCB board fixing fixture automatically completes the horizontal positioning and clamping of the PCB board through the positioning pin.

[0014] S2. Place the female connectors in batches onto the first conveyor belt of the material conveying component. Through the coordinated operation of the material conveying component and the automatic pushing component, the female connectors are intermittently conveyed from the first conveyor belt along the guide frame to the second conveyor belt.

[0015] S3, the second conveyor belt drives the female connector to continue to be transported intermittently along the guide frame. During this process, it passes through the pin correction component. The pin correction component drives the two correction plates to move closer to each other and cooperate with the fixed plate to accurately correct the straightness and posture of the female connector pins.

[0016] S4. After the correction is completed, the female connector continues to be intermittently conveyed along the guide frame. Under the action of the automatic pusher component, the female connector is pushed into the loading frame on the vertical conveyor component. Under the action of the vertical conveyor component, the female connector is pushed vertically upward and fits against the PCB board clamped and fixed in the PCB board fixing fixture, so that the female connector pins accurately pass through the corresponding holes of the PCB board and fit against the pads.

[0017] S5. Finally, the welding robot arm solders the connection points between the pins of the jack and the PCB pads according to the preset path. After completion, the robot arm resets, and the lifting cylinder drives the loading frame to descend, entering the next jack welding cycle.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention sets up an automatic feeding component and a pin correction component. While the automatic feeding component pushes the motherboard to complete the feeding and transfer, it simultaneously drives the pin correction component to start operation. Through the transmission structure, the two correction boards move closer and reset synchronously. Together with the fixed plate, they form a flexible clamping and correction space to accurately correct the pins of the motherboard. This can effectively correct the bending and offset of the pins of the motherboard, ensure that the pins are arranged neatly, lay the foundation for subsequent vertical transportation and precise docking with the PCB, and greatly reduce soldering defects such as cold solder joints and bridging.

[0020] 2. This invention, by setting up a material conveying component and an automatic pushing group, can stably receive batches of motherboards through the No. 1 conveyor belt and maintain their uniform posture by relying on the guiding constraint. The No. 2 conveyor belt, through synchronous wheel transmission and the outer wall equidistant pushing blocks, realizes the intermittent and precise conveying of motherboards. The automatic pushing component precisely connects to the transfer nodes of the two conveyor belts to complete the automated transfer connection of motherboards. The entire flow process does not require manual intervention, ensuring that each motherboard can be accurately transferred to the corresponding workstation according to the production rhythm, which greatly improves the overall production efficiency of the equipment.

[0021] 3. By setting up a vertical conveying component, the lifting electric cylinder drives the loading frame to slide smoothly in the vertical direction, avoiding the swaying and deviation problems of traditional vertical conveying. The limiting frames on both sides form elastic constraints with the fixed shaft through damping springs. After the nut enters, it is automatically clamped and positioned, realizing adaptive limiting in the horizontal direction, reducing the problem of false welding and mis-welding caused by docking deviation from the source. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the built-in frame in this invention;

[0025] Figure 3 This is a schematic diagram of the overall conveying structure in this invention;

[0026] Figure 4 This is a schematic diagram of the pin correction component in this invention;

[0027] Figure 5 This is a schematic diagram of the material conveying assembly in this invention;

[0028] Figure 6 This is a schematic diagram of the overall structure of the automatic feeding component in this invention;

[0029] Figure 7 This is a schematic diagram of the automatic feeding component in this invention.

[0030] Figure 8 This is a schematic diagram of the driving component in this invention;

[0031] Figure 9 This is a schematic diagram of the vertical conveying assembly in this invention;

[0032] Figure 10 for Figure 2 Enlarged structural diagram at point A;

[0033] Figure 11 for Figure 3 Enlarged structural diagram at point B;

[0034] Figure 12 for Figure 3 Enlarged structural diagram at point C;

[0035] Figure 13 for Figure 6 Enlarged structural diagram at point D;

[0036] Figure 14 for Figure 9 A magnified schematic diagram of the structure at point E in the middle.

[0037] In the diagram: 1. Frame; 2. Internal frame; 3. Workbench; 4. Material conveying assembly; 401. Conveyor shaft 1; 402. Conveyor shaft 2; 403. Synchronous pulley 1; 404. Synchronous pulley 2; 405. Conveyor belt 1; 406. Conveyor belt 2; 407. Push block; 408. Drive shaft 1; 409. Drive wheel; 410. Driven wheel; 5. Automatic feeding assembly; 501. Support plate; 502. Rotating shaft; 503. Guide shaft; 504. Sliding frame; 505. Push rod; 506. Push plate; 507. Guide bolt; 508. Guide rod; 509. Return spring; 6. Pin correction assembly; 601. Top frame; 602. 603. Fixed frame; 604. Sliding plate; 605. Fixed plate; 606. Correcting plate; 607. Rotating plate; 608. Connecting rod; 609. Drive shaft; 610. Secondary shaft; 611. Eccentric wheel; 612. Tie rod; 7. Vertical conveying assembly; 701. Feeding frame; 702. Limiting frame; 703. Inner cylinder; 704. Outer cylinder; 705. Lifting cylinder; 706. Fixed shaft; 707. Damping spring; 8. Drive assembly; 801. Drive shaft; 802. Half gear; 803. Second drive shaft; 804. First gear; 805. Second gear; 806. Drive motor; 9. Welding robotic arm; 10. PCB board fixing fixture. 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example: Figure 1-14 As shown, the present invention provides a technical solution: a soldering device for female connectors, including a frame 1, an inner frame 2 and a worktable 3. The inner frame 2 is securely mounted on the frame 1 by bolts, and the worktable 3 is fixedly mounted on the top of the frame 1. The inner frame 2 is sequentially provided with a material conveying component 4, an automatic material pushing component 5, a pin straightening component 6, a vertical conveying component 7 and a drive component 8. The top of the worktable 3 is provided with a welding robotic arm 9 and a PCB board fixing clamp 10 that cooperate with the vertical conveying component 7.

[0040] The material conveying assembly 4 includes two symmetrically distributed conveying shafts 401 and 402. Both conveying shafts 401 and 402 are rotatably mounted on the built-in frame 2. A first synchronous wheel 403 is fixedly sleeved on the outer wall of the first conveying shaft 401, and a second synchronous wheel 404 is fixedly sleeved on the outer wall of the second conveying shaft 402. A first conveyor belt 405 is sleeved on the outer wall of the two first synchronous wheels 403, and a second conveyor belt 406 is sleeved on the outer wall of the two second synchronous wheels 404. Several equally spaced push blocks 407 are fixedly installed on the outer wall of the second conveyor belt 406.

[0041] The pin correction assembly 6 includes a top frame 601 and a fixing frame 602. The top frame 601 is fixedly installed on the top of the built-in frame 2. The fixing frame 602 is securely installed on the bottom of the top frame 601 near the second conveyor belt 406 by bolts. A fixing plate 604 is fixedly installed at the bottom of the fixing frame 602. Two symmetrically distributed sliding plates 603 are slidably provided on the top of the top frame 601 via a slide rail. A correction plate 605 that cooperates with the fixing plate 604 is securely installed at the bottom of the sliding plate 603.

[0042] By adopting the above technical solution, the material conveying component 4 can intermittently and orderly convey the busbars, so that the busbars flow through the pin correction component 6 in sequence and accurately, and the pin correction component 6 completes the automatic correction of the busbar pins.

[0043] The automatic feeding assembly 5 includes a support plate 501 and two symmetrically distributed rotating shafts 502. The support plate 501 is fixedly installed on the top of the built-in frame 2 near the top frame 601, and one end of the top frame 601 is fixedly connected to the support plate 501. The two rotating shafts 502 are rotatably installed on the support plate 501. A guide shaft 503 is fixedly installed at the end of the rotating shaft 502. A sliding frame 504 is slidably provided on the top of the guide shaft 503. Two symmetrically distributed push rods 505 are fixedly installed at the end of the sliding frame 504. A push plate 506 is fixedly installed at the end of the push rod 505. An inclined groove is opened on the outer wall of the guide shaft 503, and the two ends of the inclined groove are connected through a transverse groove. A guide bolt 507 is fixedly installed in the middle of the bottom end of the sliding frame 504, and the guide bolt 507 slides in the inclined groove and the transverse groove.

[0044] By adopting the above technical solution, when the guide shaft 503 rotates, the inclined groove and the transverse groove convert the rotational motion into the linear reciprocating motion of the sliding frame 504 through the guide bolt 507, thereby realizing the feeding and pushing.

[0045] The vertical conveying assembly 7 includes a loading frame 701 and two symmetrically distributed limiting frames 702. The loading frame 701 is vertically slidably disposed directly below the PCB board fixing fixture 10. The two limiting frames 702 are slidably installed on both sides of the inner wall of the loading frame 701. Two symmetrically distributed inner cylinders 703 are fixedly installed at the bottom of the loading frame 701. An outer cylinder 704 is slidably sleeved on the outer wall of the inner cylinder 703, and the bottom of the outer cylinder 704 is fixedly connected to the top of the built-in frame 2. A lifting electric cylinder 705 is provided between the two outer cylinders 704, and the bottom end and the drive end of the lifting electric cylinder 705 are fixedly connected to the middle of the bottom end of the built-in frame 2 and the loading frame 701, respectively. Two symmetrically distributed fixing shafts 706 are fixedly installed on the outer side of the limiting frames 702, and the fixing shafts 706 slide through the loading frame 701. A damping spring 707 is sleeved on the outer wall of the fixing shaft 706, and the two ends of the damping spring 707 are fixedly connected to the limiting frame 702 and the inner wall of the loading frame 701, respectively.

[0046] By adopting the above technical solution, the limiting frame 702 clamps the nut through the elastic force of the damping spring 707, achieving precise horizontal positioning. At the same time, the inner cylinder 703 and the outer cylinder 704 cooperate to provide vertical sliding guidance for the feeding frame 701. With the drive of the lifting electric cylinder 705, the feeding frame 701 is ensured to rise and fall smoothly, avoiding nut displacement.

[0047] The built-in frame 2 has a guide frame that works in conjunction with the first conveyor shaft 401 and the second conveyor shaft 402 for conveying and guiding. The first conveyor shaft 401 and the second conveyor shaft 402 are connected by a synchronous pulley transmission group in the middle. The first drive shaft 408 is located directly below the first conveyor shaft 401 in the middle and is rotatably mounted on the built-in frame 2. The drive wheel 409 is fixedly sleeved on the outer wall of the first drive shaft 408, and the driven wheel 410 is fixedly sleeved on the outer wall of the first conveyor shaft 401 in the middle. The drive wheel 409 and the driven wheel 410 are meshed together.

[0048] By adopting the above technical solution, the guide frame provides a stable conveying path for the busbars. In conjunction with the synchronously rotating No. 1 conveyor belt 405 and No. 2 conveyor belt 406, the busbars are ensured to maintain a correct posture during transfer and conveying. The No. 1 drive shaft 408 drives the No. 1 conveyor shaft 401 to rotate intermittently through the drive wheel 409 and the driven wheel 410, thereby realizing intermittent conveying.

[0049] Guide rods 508 are slidably installed at both ends of the sliding frame 504, and the guide rods 508 are fixedly connected to the support plate 501. A return spring 509 is sleeved on the outer wall of the guide rod 508, and the two ends of the return spring 509 are fixedly connected to the sliding frame 504 and the support plate 501 respectively.

[0050] By adopting the above technical solution, the guide rod 508 restricts the movement direction of the sliding frame 504 to avoid deviation, and the reset spring 509 stores energy when the sliding frame 504 moves forward and automatically pulls it to reset after the action is completed.

[0051] A top plate is fixedly installed directly above the fixed frame 602. A rotating plate 606 is rotatably installed at the top center of the top plate. Both ends of the rotating plate 606 are rotatably hinged with connecting rods 607, and the other end of the connecting rods 607 is rotatably hinged to the top center of the corresponding sliding plate 603.

[0052] By adopting the above technical solution, the right sliding plate 603 drives the left sliding plate 603 to move synchronously during the movement.

[0053] A drive shaft 608 is rotatably mounted on the top of the top frame 601 near the middle of the side of the support plate 501 via a bearing seat. A secondary shaft 609 is rotatably mounted on the top of the top frame 601 near the side of the drive shaft 608 via a bearing seat. The drive shaft 608 and the secondary shaft 609 are connected by a bevel gear set. An eccentric wheel 610 is fixedly mounted on the end of the secondary shaft 609. A tie rod 611 is rotatably mounted on the eccentric end of the eccentric wheel 610. The tie rod 611 is rotatably connected to the top of the adjacent sliding plate 603.

[0054] By adopting the above technical solution, during the rotation of the secondary shaft 609, the adjacent sliding plate 603 is driven to slide back and forth once through the eccentric wheel 610 and the tie rod 611.

[0055] The drive assembly 8 includes a drive shaft 801 and a half gear 802. The drive shaft 801 is rotatably mounted on the built-in frame 2. The half gear 802 is fixedly sleeved on the outer wall of the drive shaft 801. A second drive shaft 803 is rotatably mounted on the side of the built-in frame 2 away from the first drive shaft 408. A first gear 804 is fixedly sleeved on the outer wall of the first drive shaft 408. A second gear 805 is fixedly sleeved on the outer wall of the second drive shaft 803. Both the first gear 804 and the second gear 805 are meshed with the half gear 802.

[0056] By adopting the above technical solution, the drive shaft 801 drives the first transmission shaft 408 and the second transmission shaft 803 to rotate in sequence.

[0057] A drive motor 806 is fixedly installed on the top of the built-in frame 2 near the drive shaft 801, and the drive end of the drive motor 806 is connected to the drive shaft 801 through a belt pulley transmission group. The second drive shaft 803 is connected to the drive shaft 608 and the two rotating shafts 502 through a synchronous pulley transmission group.

[0058] By adopting the above technical solution, the drive motor 806 drives the drive shaft 801 to rotate stably.

[0059] A method for using a soldering apparatus for a female connector includes the following steps:

[0060] S1. First, the PCB board is precisely placed in the PCB board fixing fixture 10. The PCB board fixing fixture 10 automatically completes the horizontal positioning and clamping of the PCB board through the positioning pin.

[0061] S2. Place the female connectors in batches onto the first conveyor belt 405 of the material conveying component 4. Through the cooperation between the material conveying component 4 and the automatic pushing component 5, the female connectors are intermittently conveyed from the first conveyor belt 405 along the guide frame to be transferred to the second conveyor belt 406.

[0062] S3, the second conveyor belt 406 drives the female connector to continue to be intermittently conveyed along the guide frame. During this process, it passes through the pin correction component 6. The pin correction component 6 drives the two correction plates 605 to move closer to each other and cooperate with the fixed plate 604 to accurately correct the straightness and posture of the female connector pins.

[0063] S4. After the correction is completed, the female connector continues to be intermittently conveyed along the guide frame. Under the action of the automatic pusher component 5, the female connector is pushed into the loading frame 701 on the vertical conveyor component 7. Under the action of the vertical conveyor component 7, the female connector is pushed vertically upward and fits against the PCB board clamped and fixed in the PCB board fixing fixture 10, so that the female connector pins accurately pass through the corresponding holes of the PCB board and fit against the pads.

[0064] S5. Finally, the welding robot arm 9 solders the connection points between the pins of the jack and the PCB pads according to the preset path. After completion, the robot arm resets, and the lifting cylinder 705 drives the loading frame 701 to descend, entering the next jack welding cycle.

[0065] Working principle: In actual production processes, such as Figure 1 As shown, firstly, the operator places the PCB board to be soldered into the PCB board fixing fixture 10 of the workbench 3. The fixture automatically completes horizontal positioning and clamping through positioning pins, ensuring that the solder pads on the PCB are accurately fixed. Then, the female connectors to be soldered are placed in batches and orderly onto the top of the first conveyor belt 405 of the material conveying assembly 4, ensuring that the female connectors are in a consistent posture. Subsequently, the control system drives the drive motor 806 to rotate intermittently, such as... Figure 3 , Figure 8As shown, with each rotation, the drive motor 806 drives the drive shaft 801 to rotate synchronously through the belt pulley transmission group. The half gear 802 on the drive shaft 801 rotates one revolution accordingly. It first meshes with the first gear 804 to complete the feeding action. After continuing to rotate, it meshes with the second gear 805 to realize the pushing and straightening action. This cycle repeats. The number of teeth of the half gear 802, the first gear 804, and the second gear 805 are matched to ensure that each time they mesh, they can drive the first drive shaft 408 and the second drive shaft 803 to rotate one revolution precisely.

[0066] When half gear 802 meshes with first gear 804, as Figure 5 , Figure 3 As shown, the first drive shaft 408 drives the first conveyor shaft 401 in the middle to rotate a quarter circumference through the meshing of the drive wheel 409 and the driven wheel 410. The first conveyor shaft 401 in the middle drives the second conveyor shaft 402 in the middle to rotate synchronously through the synchronous wheel transmission group, so that the first conveyor belt 405 conveys forward a certain distance. Under the guidance of the guide frame, the nut is conveyed from the first conveyor belt 405 to the push plate 506 at the end of the guide frame, completing the preparation for transfer to the second conveyor belt 406. At the same time, the second conveyor belt 406 rotates synchronously, and the push block 407 on it pushes the nut to move along the guide frame towards the pin correction assembly 6.

[0067] When half gear 802 meshes with second gear 805, as Figure 6 , Figure 7 As shown, when the second drive shaft 803 rotates one revolution, it drives the two rotating shafts 502 to rotate synchronously through the synchronous wheel transmission group. The rotating shaft 502 drives the guide shaft 503 to rotate. The inclined groove on the outer wall of the guide shaft 503 drives the sliding frame 504 to slide along the guide rod 508 away from the support plate 501 through the guide bolt 507. During this process, the reset spring 509 is stretched. The sliding frame 504 drives the push plate 506 to move forward through the push rod 505, and smoothly pushes the nut at the end of the first conveyor belt 405 to the push block 407 between the second conveyor belt 406. When the guide shaft 503 rotates one revolution, the guide bolt 507 enters the transverse groove, the reset spring 509 rebounds and pulls the sliding frame 504 to reset, and the push plate 506 returns to the initial position, completing one feeding cycle.

[0068] When the No. 2 drive shaft 803 rotates, as Figure 3 , Figure 4 and Figure 12As shown, the synchronous drive shaft 608 is rotated by the synchronous wheel transmission group to realize the automatic correction of the pins of the nut packer. The drive shaft 608 drives the secondary shaft 609 to rotate one revolution through the bevel gear group. The eccentric wheel 610 on the secondary shaft 609 pushes the right sliding plate 603 to move along the slide rail towards the fixed frame 602 through the pull rod 611. The right sliding plate 603 drives the left sliding plate 603 to move synchronously through the linkage of the rotating plate 606 and the connecting rod 607, so that the two correction plates 605 first approach the fixed plate 604 to clamp and correct the pins of the nut packer, and then reset. The fixed plate 604 and the inner side of the correction plate 605 are provided with soft rubber pads, and the two ends of the fixed plate 604 are designed to be arc-shaped to effectively avoid sharp edges scratching the pins or hindering the nut packer conveying.

[0069] After correction, the feeder, pushed by the pusher block 407 of the second conveyor belt 406, enters the loading frame 701 of the vertical conveying assembly 7 along the guide frame, as shown. Figure 14 As shown, the limiting frame 702 within the loading frame 701, through the elastic constraint of the damping spring 707 and the fixed shaft 706, performs fine-tuning positioning of the jack in the horizontal direction, ensuring precise alignment of the jack pins with the pads on the PCB board. Figure 9 As shown, the control system activates the lifting cylinder 705, driving the loading frame 701 to rise vertically along the guides of the inner cylinder 703 and the outer cylinder 704, pushing the POST (Power Outlet Packet) to directly below the PCB board fixing fixture 10, so that the POST pins accurately pass through the corresponding holes on the PCB board and tightly fit the pads.

[0070] Finally, the welding robot arm 9 performs automated soldering on the connection points between the pins of the female connector and the PCB pads according to the preset welding path. After the welding is completed, the welding robot arm 9 automatically resets, the operator takes out the welded PCB board, and the control system then controls the lifting cylinder 705 to drive the loading frame 701 down to the initial position, waiting for the next female connector to be delivered to the station, and enter the next welding cycle.

[0071] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A soldering device for female connectors, comprising a frame (1), an internal frame (2), and a worktable (3), characterized in that: The built-in frame (2) is securely installed on the frame (1) by bolts. The workbench (3) is fixedly installed on the top of the frame (1). The built-in frame (2) is provided with a material conveying component (4), an automatic pushing component (5), a pin correction component (6), a vertical conveying component (7), and a drive component (8) in sequence. The top of the workbench (3) is provided with a welding robotic arm (9) and a PCB board fixing clamp (10) that cooperate with the vertical conveying component (7). The material conveying assembly (4) includes two symmetrically distributed conveying shafts, namely a first conveying shaft (401) and a second conveying shaft (402). Both the first conveying shaft (401) and the second conveying shaft (402) are rotatably mounted on the built-in frame (2). The outer wall of the first conveying shaft (401) is fixedly fitted with a first synchronous wheel (403), and the outer wall of the second conveying shaft (402) is fixedly fitted with a second synchronous wheel (404). The outer walls of the two first synchronous wheels (403) are fitted with a first conveyor belt (405), and the outer walls of the two second synchronous wheels (404) are fitted with a second conveyor belt (406). The outer wall of the second conveyor belt (406) is fixedly fitted with several equally spaced push blocks (407). The pin correction assembly (6) includes a top frame (601) and a fixing frame (602). The top frame (601) is fixedly installed on the top of the built-in frame (2). The fixing frame (602) is securely installed on the bottom of the top frame (601) near the second conveyor belt (406) by bolts. A fixing plate (604) is fixedly installed at the bottom of the fixing frame (602). Two symmetrically distributed sliding plates (603) are slidably provided on the top of the top frame (601) via a slide rail. A correction plate (605) that cooperates with the fixing plate (604) is securely installed at the bottom of the sliding plate (603). The automatic feeding assembly (5) includes a support plate (501) and two symmetrically distributed rotating shafts (502). The support plate (501) is fixedly installed on the top of the built-in frame (2) near the top frame (601), and one end of the top frame (601) is fixedly connected to the support plate (501). The two rotating shafts (502) are rotatably installed on the support plate (501). A guide shaft (503) is fixedly installed at the end of the rotating shaft (502). A sliding frame (504) is slidably provided on the top of the guide shaft (503). Two symmetrically distributed push rods (505) are fixedly installed at the end of the sliding frame (504). A push plate (506) is fixedly installed at the end of the push rod (505). The vertical conveying assembly (7) includes a loading frame (701) and two symmetrically distributed limiting frames (702). The loading frame (701) is vertically slidably disposed directly below the PCB board fixing fixture (10). The two limiting frames (702) are slidably installed on both sides of the inner wall of the loading frame (701). Two symmetrically distributed inner cylinders (703) are fixedly installed at the bottom of the loading frame (701). An outer cylinder (704) is slidably sleeved on the outer wall of the inner cylinder (703). The bottom of the outer cylinder (704) is fixedly connected to the top of the built-in frame (2). A lifting electric cylinder (705) is provided between the two outer cylinders (704). The bottom end and the drive end of the lifting electric cylinder (705) are fixedly connected to the middle of the bottom end of the built-in frame (2) and the loading frame (701), respectively.

2. The soldering device for a female connector as described in claim 1, characterized in that, The outer wall of the guide shaft (503) is provided with an inclined groove, and the two ends of the inclined groove are connected through a transverse groove. A guide bolt (507) is fixedly installed at the bottom center of the sliding frame (504), and the guide bolt (507) slides in the inclined groove and the transverse groove.

3. The soldering device for a female connector as described in claim 1, characterized in that, Two symmetrically distributed fixed shafts (706) are fixedly installed on the outside of the limiting frame (702), and the fixed shafts (706) slide through the feeding frame (701). A damping spring (707) is sleeved on the outer wall of the fixed shaft (706), and the two ends of the damping spring (707) are fixedly connected to the inner wall of the limiting frame (702) and the feeding frame (701) respectively.

4. A soldering device for a female connector as described in claim 1, characterized in that, The built-in frame (2) is fixedly installed with a guide frame that works in conjunction with the first conveyor shaft (401) and the second conveyor shaft (402) for conveying guidance. The first conveyor shaft (401) and the second conveyor shaft (402) located in the middle are connected by a synchronous wheel transmission group. A first drive shaft (408) is located directly below the first conveyor shaft (401) in the middle, and the first drive shaft (408) is rotatably mounted on the built-in frame (2). A drive wheel (409) is fixedly sleeved on the outer wall of the first drive shaft (408), and a driven wheel (410) is fixedly sleeved on the outer wall of the first conveyor shaft (401) in the middle, and the drive wheel (409) and the driven wheel (410) are meshed together.

5. A soldering device for a female connector as described in claim 2, characterized in that, The sliding frame (504) has guide rods (508) slidably installed at both ends, and the guide rods (508) are fixedly connected to the support plate (501). The outer wall of the guide rods (508) is fitted with a reset spring (509), and the two ends of the reset spring (509) are fixedly connected to the sliding frame (504) and the support plate (501) respectively.

6. A soldering device for a female connector as described in claim 4, characterized in that, A top plate is fixedly installed directly above the fixed frame (602). A rotating plate (606) is rotatably installed at the top center of the top plate. Both ends of the rotating plate (606) are rotatably hinged with connecting rods (607), and the other end of the connecting rods (607) is rotatably hinged to the top center of the corresponding sliding plate (603).

7. A soldering device for a female connector as described in claim 6, characterized in that, The top of the top frame (601) is rotatably mounted on the middle of the side of the support plate (501) via a bearing seat. The top of the top frame (601) is rotatably mounted on the side of the top of the top frame (601) near the top of ...

8. A soldering device for a female connector as described in claim 7, characterized in that, The drive assembly (8) includes a drive shaft (801) and a half gear (802). The drive shaft (801) is rotatably mounted on the built-in frame (2). The half gear (802) is fixedly sleeved on the outer wall of the drive shaft (801). A second drive shaft (803) is rotatably mounted on the side of the built-in frame (2) away from the first drive shaft (408). A first gear (804) is fixedly sleeved on the outer wall of the first drive shaft (408). A second gear (805) is fixedly sleeved on the outer wall of the second drive shaft (803). Both the first gear (804) and the second gear (805) are meshed with the half gear (802).

9. A soldering device for a female connector as described in claim 8, characterized in that, The top of the built-in frame (2) is fixedly installed with a drive motor (806) on the side near the drive shaft (801), and the drive end of the drive motor (806) is connected to the drive shaft (801) through a belt pulley transmission group. The second drive shaft (803) is connected to the drive shaft (608) and the two rotating shafts (502) through a synchronous pulley transmission group.

10. The method used in the soldering apparatus for a female connector as described in claim 9, characterized in that, Includes the following steps: S1. First, the PCB board is precisely placed in the PCB board fixing fixture (10). The PCB board fixing fixture (10) automatically completes the horizontal positioning and clamping of the PCB board through the positioning pin. S2. Place the female connectors in batches onto the first conveyor belt (405) of the material conveying assembly (4). Through the cooperation of the material conveying assembly (4) and the automatic pushing assembly (5), the female connectors are intermittently conveyed from the first conveyor belt (405) along the guide frame to the second conveyor belt (406). S3, the second conveyor belt (406) drives the female connector to continue to be intermittently conveyed along the guide frame. During this process, it passes through the pin correction component (6). The pin correction component (6) drives the two correction plates (605) to move closer to each other and cooperate with the fixed plate (604) to accurately correct the straightness and posture of the female connector pins. S4. After the correction is completed, the female connector continues to be intermittently conveyed along the guide frame. Under the action of the automatic pusher component (5), the female connector is pushed into the loading frame (701) on the vertical conveyor component (7). Under the action of the vertical conveyor component (7), the female connector is pushed vertically upward and fits against the PCB board fixed in the PCB board fixing fixture (10), so that the female connector pins accurately pass through the corresponding holes of the PCB board and fit against the pads. S5. Finally, the welding robot arm (9) solders the connection point between the pin of the PCB and the PCB pad according to the preset path. After completion, the robot arm is reset, and the lifting cylinder (705) drives the loading frame (701) to descend and enter the next welding cycle of the PCB.

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