Automatic sorting machine for electronic components

Abstract

The invention discloses an automatic sorting machine for electronic components, and relates to the technical field of electronic component sorting, the automatic sorting machine comprises a case, and a feeding mechanism, a grabbing mechanism, a transferring mechanism, five storage mechanisms, a discharging mechanism and a rechecking feeding mechanism are mounted in the case. After electronic elements are produced and subjected to AVI and AOI detection, the feeding mechanism drives the tray to move into the case, the grabbing mechanism grabs defective electronic elements and places the defective electronic elements into the tray of the transfer station according to coordinates generated by the system, and then the discharging mechanism drives good electronic elements on the feeding mechanism to move out of the case. When the transfer station is filled with defective electronic elements, the transfer mechanism conveys the filled tray to one storage mechanism, and then the other storage mechanism conveys the empty tray to the transfer station, so that the sorting machine does not need to be paused in the tray replacement process, and the sorting efficiency of the electronic elements is improved.

Description

Technical Field

[0001] This application relates to the field of electronic component sorting technology, and in particular to an automatic electronic component sorting machine. Background Technology

[0002] In electronic component manufacturing, AVI (Automatic Vision Inspection) and AOI (Automated Optical Inspection) are key quality control technologies that work together to achieve accurate sorting of defective products. AOI, based on optical principles, uses a high-resolution camera to capture images of the component's appearance and combines this with algorithms to compare against a standard template. It can quickly identify appearance defects such as dimensional deviations, missing corners, scratches, and abnormal solder pads, offering high speed and accuracy. AVI, on the other hand, focuses more on dynamic vision inspection, acquiring images in real time during component transport. In addition to appearance defects, it can also help determine component posture, positional offset, and other issues, providing dynamic data support for subsequent sorting.

[0003] Currently, after electronic components are manufactured, they undergo AVI and AOI inspections. Upon completion of inspection, the system immediately generates instructions containing the defect type and component coordinates. The inspected electronic components then enter a sorting machine, where a robotic arm precisely picks up defective products and places them on a tray, achieving fully automated quality screening. However, when a tray is full of defective products, it needs to be manually removed and replaced with a new one. This process requires pausing the sorting machine, thus reducing the sorting efficiency of electronic components. Summary of the Invention

[0004] In order to improve the sorting efficiency of electronic components, this application provides an automatic electronic component sorting machine.

[0005] The automatic electronic component sorting machine provided in this application adopts the following technical solution: An automatic electronic component sorting machine includes a chassis and multiple trays movably disposed within the chassis for conveying electronic components; a feeding mechanism disposed within the chassis for moving the trays into the chassis; a gripping mechanism disposed within the chassis for gripping defective electronic components from the trays at the feeding mechanism; a transfer mechanism disposed within the chassis, having multiple transfer stations, each with a tray, where the gripping mechanism grips and places defective electronic components onto the trays at the transfer stations; multiple storage mechanisms disposed within the chassis for stacking trays, where the transfer mechanism moves the trays at the transfer stations, transferring trays filled with defective components to the storage mechanisms, some of which have multiple empty trays stacked within them, which move the empty trays to the transfer stations of the transfer mechanism; and a discharging mechanism disposed within the chassis and connected to the feeding mechanism for removing the trays from the chassis.

[0006] By adopting the above technical solution, after the electronic components complete production and undergo AVI and AOI inspection, the feeding mechanism moves the tray into the chassis. The gripping mechanism, based on coordinates generated by the system, grips the defective electronic components and places them into the tray at the transfer station. Subsequently, the unloading mechanism moves the good electronic components from the feeding mechanism out of the chassis. When the transfer station is full of defective electronic components, the transfer mechanism transports the full tray to a storage mechanism, and then another storage mechanism transports an empty tray to the transfer station. This setup allows the transfer mechanism to automatically send the full tray to a storage mechanism when it is full, and then automatically send the empty tray to the transfer mechanism, thus eliminating the need to stop the sorting machine during tray replacement and improving the sorting efficiency of electronic components.

[0007] Preferably, the feeding mechanism includes a first support, a first driving member, and a first conveyor belt. The first support is fixedly installed inside the machine housing, the first conveyor belt is rotatably installed on the first support, the pallet is placed on the first conveyor belt, and the first driving member is installed on the first support and drives the first conveyor belt to rotate.

[0008] By adopting the above technical solution, the first driving component drives the first conveyor belt to rotate on the first support, and the first conveyor belt drives the pallet to move inside the machine box.

[0009] Preferably, the gripping mechanism includes a robotic arm, a camera assembly, and multiple suction nozzle assemblies. The robotic arm is disposed inside a housing, the camera assembly is disposed at the moving end of the robotic arm, and the multiple suction nozzle assemblies are disposed at the moving end of the robotic arm and are used to pick up electronic components.

[0010] By adopting the above technical solution, the robotic arm drives the camera assembly and multiple suction nozzle assemblies to move. The camera assembly collects the position of the electronic components, and the suction nozzle assemblies pick up the electronic components, thereby enabling the precise picking up of defective electronic components.

[0011] Preferably, the transfer mechanism includes a first linear module, a translation plate, and three streamlined connection components. The first linear module is disposed inside the chassis, the translation plate is disposed at the translation end of the first linear module, and the three streamlined connection components are disposed at equal intervals on the translation plate along the moving direction of the translation plate. The transfer station is located on the streamlined connection components.

[0012] By adopting the above technical solution, the gripping mechanism places defective electronic components onto the tray of the streamlined connection assembly. The first linear module drives the three streamlined connection assemblies to move through the translation plate, thereby facilitating the delivery of the full tray into the storage mechanism.

[0013] Preferably, the streamlined connection assembly includes a second support, a second drive unit, and a second conveyor belt. The second support is disposed on a translation plate, the second conveyor belt is rotatably disposed on the second support, the pallet is placed on the first conveyor belt, and the second drive unit is disposed on the second support and drives the second conveyor belt to reciprocate.

[0014] By adopting the above technical solution, the second drive component drives the second conveyor belt to rotate on the second support, and the second conveyor belt drives the pallet to move out of the streamline connection component, so that the pallet can be sent into the storage mechanism. Similarly, when the second conveyor belt rotates in the opposite direction, it can drive the pallet into the streamline connection component.

[0015] Preferably, the material storage mechanism includes a third support, a third drive unit, a third conveyor belt, a first lifting plate, a first lifting component, multiple limiting guide plates, and a tray separating assembly. The third support is fixedly installed inside the machine housing. The third conveyor belt is rotatably mounted on the third support. The third drive unit is mounted on the third support and drives the third conveyor belt to reciprocate. The first lifting component is installed inside the machine housing. The first lifting plate is located at the lifting end of the first lifting component and below the tray. The multiple limiting guide plates are mounted on the third support and limit the stacking of multiple trays on the third conveyor belt. The multiple tray separating assemblies are mounted on the third support and are used to separate the trays.

[0016] By adopting the above technical solution, when a full pallet enters the storage mechanism, the first lifting member lifts multiple pallets within the limiting guide plate via the first lifting plate, and multiple tray-separating components limit the bottom pallet. The first lifting member then drives the first lifting plate to descend and reset, and the transfer mechanism sends the pallet onto the third conveyor belt of the storage mechanism. The third driving member drives the third conveyor belt to rotate, allowing the filled pallet to enter the storage mechanism. When an empty pallet leaves the storage mechanism, the first lifting member lifts multiple pallets within the limiting guide plate via the first lifting plate, and multiple tray-separating components limit the second-to-last pallet below. The first lifting member then drives the bottom empty pallet to descend and reset via the first lifting plate, and the third driving member drives the third conveyor belt to rotate, allowing the empty pallet to move into the transfer mechanism.

[0017] Preferably, the tray-splitting assembly includes a mounting frame, a tray-splitting block, and a first translation component. The mounting frame is fixedly mounted on a third support, the first translation component is mounted on the mounting frame, the tray-splitting block is slidably mounted on the mounting frame and connected to the translation end of the first translation component, and slots are provided on opposite side walls of the tray, allowing the tray-splitting block to move into the slots.

[0018] By adopting the above technical solution, the first translation component drives the tray blocks to move on the mounting frame. After multiple tray blocks move from both sides of the tray into the tray's slots, the tray can be limited, thereby lifting the tray and achieving the tray separation effect.

[0019] Preferably, the chassis is provided with a re-inspection and feeding mechanism, which includes a conveying component and a gripping component. The conveying component is connected to the storage mechanism and the discharge mechanism and is used to convey the pallet. The gripping component includes a second linear module, a lifting component, a rotating component, a rotating plate, two second translation components, and grippers. The second linear module is disposed in the chassis. The lifting component is disposed at the translation end of the second linear module. The rotating component is disposed at the lifting end of the lifting component. The rotating plate is disposed at the rotating end of the rotating component. The two second translation components are disposed at both ends of the rotating plate. The two grippers are disposed at the translation ends of the two second translation components.

[0020] By adopting the above technical solution, after re-inspecting defective electronic components, the qualified electronic components are placed on a tray, and the tray is placed in a storage mechanism. The storage mechanism transports the tray to the conveying component, which moves the tray toward the discharge mechanism. The lifting component moves the two grippers downward, and the second translation component moves the grippers to hold the tray. Then, the second linear module moves the tray above the discharge mechanism, and the rotating component rotates the tray so that it can be placed on the discharge mechanism.

[0021] Preferably, guide plates are provided on both sides of the discharge mechanism, a clamping groove is provided on the side wall of the gripper, a top plate is slidably provided on the gripper within the top wall of the clamping groove, a moving plate and a limiting plate are slidably provided on the gripper within the side wall of the clamping groove, the limiting plate abuts against the pallet, multiple rollers are rotatably provided on the side wall of the moving plate, a gap is formed between the rollers and the pallet, a limiting block is slidably provided inside the gripper, one end of the limiting block is fixedly connected to the top plate, the limiting plate moves to abut against the other end of the limiting block, a first chamfer is formed at the end of the limiting block away from the top plate to facilitate the movement of the limiting plate, a first push block is provided on the limiting block, a second push block is provided inside the moving plate, the first push block abuts against the second push block and is used to push the moving plate toward the pallet.

[0022] By adopting the above technical solution, after prolonged use, the gripping component is prone to movement errors, and the position of the gripper holding the pallet and placing it on the discharge mechanism is prone to deviation. When the gripper holds the pallet, the limiting plate abuts against the limiting block, and the gripper drives the limiting plate to clamp the pallet. When the gripper moves the pallet to the discharge mechanism and the pallet position deviates, the pallet first contacts the guide plate. After the pallet contacts the guide plate, it pushes the top plate to move upward. The top plate drives the limiting block to move upward. Under the action of the first chamfer of the limiting block, the limiting plate can move inward into the gripper. During the upward movement of the limiting block, the first push block and the second push block drive the moving plate to move towards the pallet. The moving plate drives multiple rollers to abut against the pallet. At this time, under the guidance of the guide plate, the pallet is translated within the gripper by the rollers, thereby automatically correcting the position of the pallet and facilitating the accurate placement of the pallet on the discharge mechanism.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. Utilizing a storage mechanism, after electronic components complete production and undergo AVI and AOI inspection, the feeding mechanism moves the tray into the chassis. The gripping mechanism, based on coordinates generated by the system, grips the defective electronic components and places them into the tray at the transfer station. Subsequently, the unloading mechanism moves the good electronic components from the feeding mechanism out of the chassis. When the transfer station is full of defective electronic components, the transfer mechanism transports the full tray to a storage mechanism. Then, another storage mechanism transports the empty tray to the transfer station. This eliminates the need to stop the sorting machine during tray replacement, improving the sorting efficiency of electronic components. 2. With the aid of the storage mechanism, when a full pallet enters the storage mechanism, the first lifting member lifts multiple pallets in the limiting guide plate through the first lifting plate, and multiple tray-separating components limit the bottom pallet. The first lifting member then drives the first lifting plate to descend and reset. The transfer mechanism sends the pallet onto the third conveyor belt of the storage mechanism. The third drive member drives the third conveyor belt to rotate, so that the loaded pallet enters the storage mechanism. When an empty pallet moves out of the storage mechanism, the first lifting member lifts multiple pallets in the limiting guide plate through the first lifting plate, and multiple tray-separating components limit the second to last pallet below. The first lifting member then drives the bottom empty pallet to descend and reset through the first lifting plate. The third drive member drives the third conveyor belt to rotate, so that the empty pallet moves into the transfer mechanism. 3. After re-inspecting the defective electronic components, the qualified electronic components are placed on a tray by the re-inspection feeding mechanism. The tray is then placed into a storage mechanism, which transports the tray to the conveying component. The conveying component moves the tray toward the discharge mechanism. The lifting component moves the two grippers downward, and the second translation component moves the grippers to hold the tray. Then, the second linear module moves the tray above the discharge mechanism, and the rotating component rotates the tray so that it can be placed on the discharge mechanism. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the automatic electronic component sorting machine in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of the automatic electronic component sorting machine in Embodiment 1 of this application; Figure 3 This is a partial structural schematic diagram of the automatic electronic component sorting machine in Embodiment 1 of this application; Figure 4 This is a partial top view of the automatic electronic component sorting machine in Embodiment 1 of this application; Figure 5 This is a partially exploded view of the automatic electronic component sorting machine in Embodiment 1 of this application; Figure 6 This is a partial structural schematic diagram of the automatic electronic component sorting machine in Embodiment 1 of this application, to highlight the feeding mechanism; Figure 7 This is a partial structural diagram of the automatic electronic component sorting machine in Embodiment 1 of this application, used to highlight the gripping mechanism; Figure 8 This is a partial structural diagram of the automatic electronic component sorting machine in Embodiment 1 of this application, to highlight the transfer mechanism; Figure 9 This is a partial structural diagram of the automatic electronic component sorting machine in Embodiment 1 of this application, to highlight the material storage mechanism; Figure 10 This is a partial structural diagram of the automatic electronic component sorting machine in Embodiment 1 of this application, to highlight the re-inspection and feeding mechanism; Figure 11 This is a partial structural schematic diagram of the automatic electronic component sorting machine in Embodiment 2 of this application; Figure 12 This is a partial exploded view of the automatic electronic component sorting machine in Embodiment 2 of this application; Figure 13 This is a partial front view of the automatic electronic component sorting machine in Embodiment 2 of this application; Figure 14 This is a partial structural diagram of the automatic electronic component sorting machine in Embodiment 2 of this application, highlighting the clamping groove; Figure 15 This is a partial structural cross-sectional view of the automatic electronic component sorting machine in Embodiment 2 of this application; Figure 16 For this application Figure 15 Enlarged view of point A in the middle; Figure 17 This is a partial structural schematic diagram of the automatic electronic component sorting machine in Embodiment 2 of this application, highlighting the through holes; Figure 18 This is a partial structural cross-sectional view of the automatic electronic component sorting machine in Embodiment 2 of this application, highlighting the first pusher block and the second pusher block.

[0025] Reference numerals: 1. Chassis; 2. Pallet; 3. Electronic component; 4. Feeding mechanism; 41. First support; 42. First drive unit; 43. First conveyor belt; 5. Gripping mechanism; 51. Robotic arm; 52. Camera assembly; 53. Nozzle assembly; 6. Transfer mechanism; 61. First linear module; 62. Translation plate; 63. Streamlined connection assembly; 631. Second support; 632. Second drive unit; 633. Second conveyor belt; 7. Storage machine Structure; 71. Third support; 72. Third drive unit; 73. Third conveyor belt; 74. First lifting plate; 75. First lifting component; 76. Limiting guide plate; 77. Dividing assembly; 771. Mounting frame; 772. Dividing block; 773. First translation component; 8. Discharge mechanism; 9. Re-inspection and loading mechanism; 91. Conveying assembly; 92. Gripping assembly; 921. Second linear module; 922. Lifting component; 923. Rotating component; 924. Rotating plate 925. Second translation component; 926. Gripper; 10. Slot; 11. Guide plate; 12. Grip groove; 13. Top plate; 14. Moving plate; 15. Limiting plate; 16. Roller; 17. Limiting block; 18. First chamfer; 19. First push block; 20. Second push block; 21. Feed inlet; 22. Discharge outlet; 23. Base plate; 24. Scanner; 25. First blocking plate; 26. Second lifting component; 27. Second lifting plate; 28. First 29. Limiting frame; 30. Second chamfer; 31. Through hole; 32. First elastic element; 33. Second elastic element; 34. Limiting side plate; 101. Station 1; 102. Station 2; 103. Station 3; 104. Station 4; 105. Station 5; 106. Station 6; 107. Station 7; 108. Station 8; 109. Station 9; 110. Station 10; 111. Station 11; 112. Station 12. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-18 This application will be described in further detail.

[0027] This application discloses an automatic electronic component sorting machine.

[0028] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An automatic electronic component sorting machine includes a housing 1, with an inlet 21 and an outlet 22 at both ends along its length. The housing 1 houses a feeding mechanism 4, a gripping mechanism 5, a conveying mechanism 6, five storage mechanisms 7, an outlet mechanism 8, and a re-inspection and loading mechanism 9.

[0029] Reference Figure 5 The chassis 1 also contains multiple trays 2, and electronic components 3 are placed on the trays 2. In this application, the electronic components 3 can be FPC flexible boards.

[0030] Reference Figure 3 and Figure 6 A base plate 23 is fixedly installed inside the casing 1. The feeding mechanism 4 includes two first supports 41, a first drive unit 42, and a first conveyor belt 43. The two first supports 41 are mounted on the base plate 23, the two first drive units 42 are fixedly mounted on the two first supports 41, and the two first conveyor belts 43 are rotatably mounted on the side of the two first supports 41 that is close to each other. In this application, the first drive unit 42 can be a servo motor, and the drive ends of the two first drive units 42 drive the two first conveyor belts 43 to rotate.

[0031] One end of the first support 41 along its length is located at the feed inlet 21. After AVI and AOI testing, the electronic components 3 are placed on the tray 2. The tray 2 enters the first conveyor belt 43 of the first support 41 through the feed inlet 21. The two first conveyor belts 43 drive the tray 2 to move within the chassis 1. The discharge mechanism 8 has the same structure as the feed mechanism 4. One end of the discharge mechanism 8 is connected to the feed mechanism 4, and the other end is located at the discharge outlet 22 of the chassis 1. After sorting, the tray 2 is sent out of the chassis 1 from the discharge outlet 22 through the discharge mechanism 8.

[0032] A scanner 24 is mounted on the first bracket 41. The feeding mechanism 4 moves the tray 2 below the scanner 24, and the scanner 24 scans the markings on the tray 2 to identify the coordinate commands of the electronic components 3 on the tray 2. A first blocking plate 25 is mounted on the base plate 23 via a cylinder for lifting. A first limiting frame 28 is fixedly mounted on the top of each of the two first brackets 41. A second lifting member 26 is fixedly mounted on the base plate 23, and a second lifting plate 27 is fixedly mounted on the lifting end of the second lifting member 26. In this application, the second lifting member 26 can be a cylinder.

[0033] The cylinder drives the first blocking plate 25 to move upward, and the first blocking plate 25 blocks the movement of the tray 2, so that the tray 2 stops moving. The second lifting member 26 then drives the second lifting plate 27 to move upward, and the second lifting plate 27 drives the tray 2 to move upward. The two first limiting frames 28 cooperate with the second lifting plate 27 to clamp and limit the tray 2, so as to facilitate the gripping mechanism 5 to accurately grip the electronic components 3 on the tray 2.

[0034] Reference Figure 3 and Figure 7 The gripping mechanism 5 includes a robotic arm 51, a camera assembly 52, and three suction nozzle assemblies 53. The robotic arm 51 is fixedly mounted on the base plate 23 and located between the feeding mechanism 4 and the discharging mechanism 8. The camera assembly 52 is fixedly mounted on the moving end of the robotic arm 51, and the three suction nozzle assemblies 53 are mounted on the moving end of the robotic arm 51.

[0035] The camera assembly 52, fixed to the end of the robotic arm 51, performs high-speed scanning of the tray 2 on the feeding mechanism 4 to accurately locate the coordinates of each electronic component 3. The robotic arm 51 drives the suction nozzle assembly 53 to move to the designated electronic component 3. The suction nozzle assembly 53 accurately picks up the designated defective electronic component 3 by negative pressure adsorption and transfers it into the transfer mechanism 6.

[0036] Reference Figure 3 and Figure 8 The transfer mechanism 6 includes a first linear module 61, a translation plate 62, and three streamlined connection components 63. The first linear module 61 is fixedly installed on the base plate 23, the translation plate 62 is fixedly installed on the translation end of the first linear module 61, and the three streamlined connection components 63 are installed at equal intervals along the length of the translation plate 62 on the top wall of the translation plate 62. Each streamlined connection component 63 has a transfer station for conveying the pallet 2.

[0037] The streamlined connection assembly 63 includes two second supports 631, two second drive members 632, and two conveyor belts 633. The two second supports 631 are mounted on a translation plate 62, the two second drive members 632 are fixedly mounted on the two second supports 631, and the two second conveyor belts 633 are rotatably mounted on the side of the two second supports 631 that is close to each other. In this application, the second drive member 632 can be a servo motor, and the drive ends of the two second drive members 632 drive the two second conveyor belts 633 to reciprocate.

[0038] The second bracket 631 is equipped with the same lifting and limiting structure as the second lifting member 26, the second lifting plate 27 and the first limiting frame 28 at the first bracket 41. The lifting and limiting structure can limit and fix the tray 2 on the second bracket 631.

[0039] The gripping mechanism 5 places the defective electronic components 3 into the tray 2 of the streamlined connection assembly 63. The first linear module 61, with the aid of the translation plate 62, drives the three streamlined connection assemblies 63 to move synchronously, thus facilitating the subsequent transport of the fully loaded tray 2 to the storage mechanism 7. At the same time, the second drive assembly drives the second conveyor belt 633 to operate on the second support 631. When the second conveyor belt 633 rotates in the forward direction, it pushes the tray 2 out of the streamlined connection assembly 63, ensuring that the tray 2, which has been loaded, can smoothly enter the storage mechanism 7; conversely, when the second conveyor belt 633 rotates in the reverse direction, it can drive the tray 2 back into the streamlined connection assembly 63.

[0040] Reference Figure 3 and Figure 9 The material storage mechanism 7 includes a first lifting plate 74, a first lifting element 75, two third supports 71, a third drive element 72, a third conveyor belt 73, four limiting guide plates 76, and a tray assembly 77. The two third supports 71 are fixedly mounted on the base plate 23, the two third drive elements 72 are fixedly mounted on the two third supports 71, and the two third conveyor belts 73 are rotatably mounted on the side of the two third supports 71 that is close to each other. In this application, the third drive element 72 can be a servo motor, and the drive ends of the two third drive elements 72 drive the two third conveyor belts 73 to reciprocate. The first lifting element 75 is fixedly mounted on the base plate 23 and located between the two third supports 71. The first lifting plate 74 is fixedly mounted on the lifting end of the first lifting element 75. In this application, the first lifting element 75 can be a cylinder.

[0041] Four limiting guide plates 76 are fixedly installed at both ends of the two third supports 71 along their length. Two of the limiting guide plates 76 have an L-shaped cross-section and are located on the side of the two third supports 71 closer to the transfer mechanism 6. The other two limiting guide plates 76 are flat plates and are located on the side of the two third supports 71 away from the transfer mechanism 6. Multiple pallets 2 are placed on the two third conveyor belts 73, and the four limiting guide plates 76 limit the multiple pallets 2, so that the multiple pallets 2 are stably stacked.

[0042] A limiting side plate 33 is slidably mounted on a flat plate-shaped limiting guide plate 76 via a cylinder. The cylinder drives the limiting side plate 33 to move horizontally. The limiting side plate 33 abuts against the side of the pallet 2 away from the L-shaped limiting guide plate 76, thereby cooperating with the limiting guide plate 76 to stack multiple pallets 2 in the storage mechanism 7.

[0043] Reference Figure 5 and Figure 9Four tray assemblies 77 are respectively installed at both ends of the two third supports 71 along their length. Each tray assembly 77 includes a mounting frame 771, tray blocks 772, and a first translation member 773. The mounting frame 771 is fixedly installed on the third support 71, and the first translation member 773 is fixedly installed on the mounting frame 771. The tray blocks 772 are slidably installed in the mounting frame 771 along the horizontal direction. In this application, the first translation member 773 can be a cylinder, and the translation end of the first translation member 773 is fixedly connected to the tray block 772. Slots 10 are provided on both sides of the bottom wall of the tray 2 along its width direction, allowing the four tray blocks 772 to move into the four slots 10.

[0044] Before the pallet 2 filled with materials enters the storage mechanism 7, the first lifting component 75 lifts the multiple pallets 2 within the limiting guide plate 76 via the first lifting plate 74. At this time, multiple tray-separating components 77 operate synchronously, with four tray-separating blocks 772 moving into the four slots 10 and limiting and fixing the bottom pallet 2. Subsequently, the first lifting component 75 drives the first lifting plate 74 to descend and reset. The transfer mechanism 6 then moves the pallet 2 onto the third conveyor belt 73 of the storage mechanism 7. Finally, the third driving component 72 drives the third conveyor belt 73 to rotate, transporting the filled pallet 2 into the storage mechanism 7 for storage.

[0045] When it is necessary to remove the empty pallet 2, the first lifting member 75 first lifts all the pallets 2 within the limiting guide plate 76 via the first lifting plate 74. Then, the four tray-separating assemblies 77 limit and fix the second to last pallet 2 from the bottom, allowing the bottom empty pallet 2 to separate independently. Afterward, the first lifting member 75 drives the first lifting plate 74 to descend, bringing only the bottom empty pallet 2 to its low position for reset. Finally, the third driving member 72 drives the third conveyor belt 73 to rotate, transporting the empty pallet 2 into the transfer mechanism 6, completing the removal of the empty pallet 2.

[0046] Reference Figure 3 and Figure 10 The re-inspection feeding mechanism 9 includes a conveying component 91 and a gripping component 92 installed on the base plate 23. The conveying component 91 has the same structure as the discharge mechanism 8. The two ends of the conveying component 91 are connected to the discharge mechanism 8 and a storage mechanism 7, respectively. The gripping component 92 is located above the discharge mechanism 8 and the conveying component 91 and is used to grip and transport the pallet 2 on the conveying component 91 to the discharge mechanism 8.

[0047] The gripping component 92 includes a second linear module 921, a lifting member 922, a rotating member 923, a rotating plate 924, two second translational members 925, and grippers 926. The second linear module 921 is fixedly mounted on the base plate 23 via a column. The lifting member 922 is fixedly mounted on the horizontal moving end of the second linear module 921. The rotating member 923 is fixedly mounted on the lifting end of the lifting member 922. The rotating plate 924 is fixedly mounted on the rotating end of the rotating member 923. The two second translational members 925 are fixedly mounted at both ends of the bottom wall of the rotating plate 924. The two grippers 926 are fixedly mounted on the translational ends of the two second translational members 925 that are close to each other. In this application, the lifting member 922 can be selected as a cylinder, the rotating member 923 can be selected as a servo motor, and the second translational members 925 can be selected as cylinders.

[0048] After the defective electronic component 3 passes re-inspection, it is placed on tray 2, which is then stacked into storage mechanism 7. Storage mechanism 7 conveys tray 2 to conveying assembly 91, which in turn moves tray 2 toward discharge mechanism 8. At this time, lifting component 922 drives two grippers 926 to move downward, and second translation component 925 controls the grippers 926 to clamp tray 2. Then, second linear module 921 moves tray 2 directly above discharge mechanism 8, and rotating component 923 rotates tray 2 by 90°. Finally, tray 2 is placed on discharge mechanism 8.

[0049] Reference Figure 4 The feeding mechanism 4 has station 101 and station 2 102, the transfer mechanism 6 has station 3 103, station 4 104 and station 5 105, the five storage mechanisms 7 have station 6 106, station 7 107, station 8 108, station 9 109 and station 10 110 respectively, the re-inspection feeding mechanism 9 has station 111, and the discharge mechanism 8 has station 112.

[0050] The implementation principle of an automatic electronic component sorting machine according to an embodiment of this application is as follows: Pallet 2 is scanned by a scanner 24 at station 101. Pallet 2 is then fixed at station 2. Subsequently, the gripping mechanism 5 grips defective electronic components 3. AVI defective components are gripped to station 3, and AOI defective components are gripped to station 4, 104. Once pallet 2 at station 3 is full, it is sent out from station 6, 106. Once pallet 2 at station 4 is full, it is sent out from station 8, 108. Empty pallets 2 are stacked in station 7, 107. The empty pallets 2 at station 7 are transported to stations 3, 103, and 104. Pallets 2 containing inspected and qualified electronic components 3 are stacked in station 9 (109). Pallets 2 in station 9 (109) are conveyed to station 5 (105), and empty pallets 2 in station 5 (105) are transferred to station 8 (108). After all defective electronic components 3 on pallets 2 in station 2 (102) are removed, the gripping mechanism 5 grips the qualified electronic components 3 from station 5 (105) and transfers them to pallets 2 in station 2 (102), thus replenishing pallets 2 in station 2 (102). Pallets 2 in station 2 (102) are then conveyed to station 112 (112), where the discharging mechanism 8 moves them to discharge the components. Pallets 2 containing inspected and qualified electronic components 3 are stacked in station 10 (110). Pallets 2 are conveyed to station 111 (111), where the gripping mechanism 5 grips them and places them on station 112 (112), where the discharging mechanism 8 moves them to discharge the components.

[0051] Example 2: Reference Figure 11 , Figure 12 , Figure 13 and Figure 14 The difference between this embodiment and embodiment 1 is that guide plates 11 are fixedly installed on the top of both supports of the discharge mechanism 8, and the top walls of the two guide plates 11 that are close to each other are formed with a second chamfer 29. The two grippers 926 have clamping grooves 12 opened in the horizontal direction on their side walls that are close to each other. The two ends of the tray 2 in the length direction are respectively located in the clamping grooves 12 of the two grippers 926, and the bottom wall of the tray 2 abuts against the bottom wall of the clamping groove 12.

[0052] The gripper 926 is located inside the top wall of the clamping groove 12 and a top plate 13 is slidably installed in the vertical direction. The gripper 926 is located inside the side wall of the clamping groove 12 and a moving plate 14 and a limiting plate 15 are slidably installed in the horizontal direction. The moving plate 14 is located above the limiting plate 15. Multiple rollers 16 are equidistantly mounted on the side wall of the moving plate 14 near the tray 2 along its own length direction.

[0053] Reference Figure 15 , Figure 16 , Figure 17 and Figure 18Three limiting blocks 17 are slidably installed in the gripper 926 along the vertical direction. The limiting blocks 17 are inverted L-shaped. One end of the limiting block 17 is fixedly connected to the top wall of the top plate 13. The side wall of the limiting plate 15 away from the tray 2 abuts against the side wall of the other end of the limiting block 17. A first chamfer 18 is formed on the bottom of the limiting block 17 near the side wall of the limiting plate 15.

[0054] Three first elastic elements 31 are installed inside the gripper 926. The top ends of the three first elastic elements 31 are fixedly connected to three limiting blocks 17, and the bottom ends are fixedly connected to the gripper 926. Three second elastic elements 32 are installed inside the gripper 926. One end of the three second elastic elements 32 is fixedly connected to the side wall of the moving plate 14 away from the tray 2, and the other end is fixedly connected to the gripper 926. In this application, both the first elastic elements 31 and the second elastic elements 32 can be selected as tension springs. The first elastic elements 31 pull the limiting blocks 17 downward, and the second elastic elements 32 pull the moving plate 14 away from the tray 2.

[0055] When the two grippers 926 grip the pallet 2, both ends of the pallet 2 enter the clamping grooves 12 of the two grippers 926. The bottom wall of the pallet 2 abuts against the bottom wall of the clamping groove 12, the top wall of the pallet 2 abuts against the bottom wall of the top plate 13, and the side wall of the pallet 2 abuts against the limiting plate 15. There is a gap between the side wall of the pallet 2 and the roller 16 and the two do not contact each other.

[0056] The movable plate 14 has three through holes 30. Three limiting blocks 17 slide through the three through holes 30 respectively. Each limiting block 17 has a first push block 19 fixedly installed on its opposite side walls. The movable plate 14 has a second push block 20 fixedly installed on its opposite side walls of each through hole 30. The first push block 19 and the second push block 20 are both wedge-shaped blocks, and the inclined surfaces of the first push block 19 and the second push block 20 abut against each other.

[0057] The implementation principle of Embodiment 2 of this application is as follows: After long-term use, the gripping component 92 is prone to movement errors, resulting in positional deviation when the gripper 926 clamps the pallet 2 and places it on the discharge mechanism 8. The solution of this embodiment can correct the deviation of the pallet 2: When the gripper 926 clamps the pallet 2, the limiting plate 15 will abut against the limiting block 17, and at the same time drive the limiting plate 15 to clamp the pallet 2; if the position of the pallet 2 is offset when the gripper 926 moves the pallet 2 to the discharge mechanism 8, the pallet 2 will first contact the second chamfer 29 of the guide plate 11. Under the guidance of the second chamfer 29, the pallet 2 will push the top plate 13 to move upward, causing the top plate 13 to drive the three limiting blocks 17 to rise synchronously. The movement of the limiting block 17 causes the first chamfer 18 to contact the limiting plate 15. Under the action of the first chamfer 18, the limiting plate 15 can move inward toward the gripper 926. During the upward movement of the limiting block 17, the first push block 19 and the second push block 20 drive the moving plate 14 to move closer to the pallet 2, so that the multiple rollers 16 on the moving plate 14 press against the pallet 2. At this time, under the guidance of the guide plate 11, the pallet 2 moves horizontally in the clamping groove 12 of the gripper 926 with the help of the rollers 16, realizing automatic position correction and ensuring that it can be accurately placed on the discharge mechanism 8.

[0058] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An electronic component automatic handler comprising a cabinet (1), characterized in that: Also included A plurality of trays (2) are movably arranged in the cabinet (1) for conveying electronic components (3); A feeding mechanism (4) is arranged in the cabinet (1) for driving the trays (2) to move into the cabinet (1); A grabbing mechanism (5) is arranged in the cabinet (1) for grabbing the defective electronic components (3) on the trays (2) at the feeding mechanism (4); A transfer mechanism (6) is arranged in the cabinet (1), and a plurality of transfer stations are arranged on the transfer mechanism (6), and each of the transfer stations is provided with a tray (2), and the grabbing mechanism (5) is used for placing the defective electronic components (3) on the tray (2) at the transfer station; A plurality of storage mechanisms (7) are arranged in the cabinet (1) and used for stacking the trays (2), the transfer mechanism (6) drives the trays (2) at the transfer stations to move, the transfer mechanism (6) moves the trays (2) full of defective electronic components to the storage mechanisms (7), and a plurality of empty trays (2) are stacked in part of the storage mechanisms (7), and the storage mechanisms (7) drive the empty trays (2) to move to the transfer stations of the transfer mechanism (6); A discharging mechanism (8) is arranged in the cabinet (1) and connected with the feeding mechanism (4), and is used for driving the trays (2) to move out of the cabinet (1).

2. The electronic component automatic handler according to claim 1, wherein: The feeding mechanism (4) comprises a first support (41), a first driving member (42) and a first conveying belt (43), the first support (41) is fixedly arranged in the cabinet (1), the first conveying belt (43) is rotatably arranged on the first support (41), the tray (2) is arranged on the first conveying belt (43), and the first driving member (42) is arranged on the first support (41) and drives the first conveying belt (43) to rotate.

3. The electronic component automatic handler according to claim 1, wherein: The grabbing mechanism (5) comprises a mechanical arm (51), a camera assembly (52) and a plurality of suction nozzle assemblies (53), the mechanical arm (51) is arranged in the cabinet (1), the camera assembly (52) is arranged at a moving end of the mechanical arm (51), and the plurality of suction nozzle assemblies (53) are arranged at the moving end of the mechanical arm (51) and used for sucking the electronic components (3).

4. The electronic component automatic handler according to claim 1, wherein: The transfer mechanism (6) comprises a first linear module (61), a translation plate (62) and three streamline connection assemblies (63), the first linear module (61) is arranged in the cabinet (1), the translation plate (62) is arranged at a translation end of the first linear module (61), the three streamline connection assemblies (63) are equidistantly arranged on the translation plate (62) along a moving direction of the translation plate (62), and the transfer station is located on the streamline connection assembly (63).

5. An electronic component automatic handler according to claim 4, wherein: The streamline connection assembly (63) comprises a second support (631), a second driving member (632) and a second conveying belt (633), the second support (631) is arranged on the translation plate (62), the second conveying belt (633) is rotatably arranged on the second support (631), the tray (2) is arranged on the first conveying belt (43), and the second driving member (632) is arranged on the second support (631) and drives the second conveying belt (633) to reciprocatingly rotate.

6. The electronic component automatic handler according to claim 1, wherein: The material storage mechanism (7) comprises a third support (71), a third driving member (72), a third conveying belt (73), a first jacking plate (74), a first jacking member (75), a plurality of limiting guide plates (76) and a tray separating assembly (77), the third support (71) is fixedly arranged in the cabinet (1), the third conveying belt (73) is rotatably arranged on the third support (71), the third driving member (72) is arranged on the third support (71) and drives the third conveying belt (73) to rotate reciprocatingly, the first jacking member (75) is arranged in the cabinet (1), the first jacking plate (74) is arranged on the lifting end of the first jacking member (75) and located below the tray (2), a plurality of the limiting guide plates (76) are arranged on the third support (71), a plurality of the limiting guide plates (76) limit a plurality of trays (2) to be stacked and placed on the third conveying belt (73), and a plurality of the tray separating assemblies (77) are arranged on the third support (71) and used for separating the trays (2).

7. An electronic component automatic handler according to claim 6, wherein: The tray separating assembly (77) comprises a mounting frame (771), a tray separating block (772) and a first translation member (773), the mounting frame (771) is fixedly arranged on the third support (71), the first translation member (773) is arranged on the mounting frame (771), and the tray separating block (772) is slidingly arranged on the mounting frame (771) and connected with the translation end of the first translation member (773), the opposite two side walls of the tray (2) are both provided with a clamping groove (10), and the tray separating block (772) moves into the clamping groove (10).

8. The electronic component automatic handler according to claim 1, wherein: The cabinet (1) is provided with a re-inspection feeding mechanism (9), the re-inspection feeding mechanism (9) comprises a conveying assembly (91) and a grabbing assembly (92), the conveying assembly (91) is connected with the material storage mechanism (7) and the discharging mechanism (8) and used for conveying the tray (2), the grabbing assembly (92) comprises a second linear module (921), a lifting member (922), a rotating member (923), a rotating plate (924), two second translation members (925) and clamping jaws (926), the second linear module (921) is arranged in the cabinet (1), the lifting member (922) is arranged at the translation end of the second linear module (921), the rotating member (923) is arranged at the lifting end of the lifting member (922), the rotating plate (924) is arranged at the rotating end of the rotating member (923), two second translation members (925) are arranged at two ends of the rotating plate (924), and two clamping jaws (926) are arranged at the translation ends of the two second translation members (925).

9. An electronic component automatic handler according to claim 8, wherein: Both sides of the discharging mechanism (8) are provided with guide plates (11), the side wall of the clamping jaw (926) is provided with a clamping groove (12), the top wall of the clamping groove (12) is slidably provided with a top plate (13), the side wall of the clamping groove (12) is slidably provided with a moving plate (14) and a limiting plate (15), the limiting plate (15) abuts against the tray (2), the side wall of the moving plate (14) is rotatably provided with a plurality of rollers (16), a gap is formed between the rollers (16) and the tray (2), the clamping jaw (926) is slidably provided with a limiting block (17), one end of the limiting block (17) is fixedly connected with the top plate (13), the limiting plate (15) moves and abuts against the other end of the limiting block (17), the end portion of the limiting block (17) away from the top plate (13) is formed with a first chamfer (18) facilitating the movement of the limiting plate (15), the limiting block (17) is provided with a first push block (19), the moving plate (14) is provided with a second push block (20), the first push block (19) abuts against the second push block (20) and is used for pushing the moving plate (14) to move towards the tray (2).

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