PCB board feeding and discharging device

Abstract

The application relates to a PCB feeding and discharging device and relates to the technical field of PCB manufacturing.The PCB feeding and discharging device comprises a device body, a lifting mechanism, a clamping mechanism and a moving mechanism are further arranged on the device body, the lifting mechanism is used for lifting the PCB conveyed, the clamping mechanism is arranged on the moving mechanism and is used for clamping the lifted PCB, and the moving mechanism is used for driving the clamping mechanism to displace so that the clamping mechanism is close to or far away from a conveying belt used for input or output. The application has the effect of improving the feeding and discharging speed of the PCB.

Description

Technical Field

[0001] This application relates to the field of PCB manufacturing technology, and in particular to a PCB loading and unloading device. Background Technology

[0002] A PCB, also known as a printed circuit board, is a support structure for electronic components and a carrier for electrical connections. It provides electrical connections and a stable mounting platform for electronic components, thus playing an important role.

[0003] Regarding the aforementioned technologies, in the process of PCB manufacturing, existing technologies generally use industrial robots to load and unload PCBs, allowing the PCBs to enter the processing stage or remove the finished PCBs from the current processing stage. However, because PCB manufacturing is a high-cycle and high-precision manufacturing environment, and in order to grasp, move, lift, and place PCBs, industrial robots often require more acceleration and deceleration processes and redundant actions, resulting in a relatively low loading and unloading speed. This makes it difficult for industrial robots to adapt to the high-cycle and high-precision manufacturing environment of PCBs, causing the manufacturing speed of PCBs to be limited by the loading and unloading speed of the industrial robots, thereby reducing the manufacturing efficiency of PCBs. Therefore, improvements are needed. Summary of the Invention

[0004] To improve the loading and unloading speed of PCB boards, this application provides a PCB board loading and unloading device.

[0005] This application provides a PCB board loading and unloading device, which adopts the following technical solution: A PCB board loading and unloading device includes a device body, which is further provided with a lifting mechanism, a clamping mechanism and a moving mechanism. The lifting mechanism is used to lift the PCB board being transported. The clamping mechanism is disposed on the moving mechanism and is used to clamp the lifted PCB board. The moving mechanism is used to drive the clamping mechanism to move so that the clamping mechanism moves closer to or further away from the conveyor belt used for input or output.

[0006] By adopting the above technical solution, compared with the existing technology that uses industrial robots, the industrial robots often need more acceleration and deceleration processes and redundant actions to achieve the gripping, moving, lifting, and placing of PCB boards. This results in a lower loading and unloading speed for PCB boards and a reduction in PCB board manufacturing efficiency. The lifting mechanism, gripping mechanism, and moving mechanism in this application allow the series of gripping, moving, lifting, and placing operations that originally required industrial robots to complete to be divided into multiple independent steps and executed by corresponding mechanisms. This effectively reduces the acceleration and deceleration processes and redundant actions during the gripping, moving, lifting, and placing of PCB boards, thereby improving the loading and unloading efficiency of PCB boards and indirectly improving the PCB board manufacturing efficiency.

[0007] Preferably, the clamping mechanism includes a setting frame, a clamping frame, and a driving component. The setting frame is disposed on the moving mechanism, and the number of clamping frames is set to several, which are respectively located on opposite sides of the setting frame. Each clamping frame is slidably connected to the setting frame, and the sliding direction is parallel. The driving component is used to drive each clamping frame to slide, so that the clamping frame clamps the raised PCB board.

[0008] By adopting the above technical solution and configuring the clamping mechanism, the driving component can drive the clamping frame to slide after the setting frame approaches the PCB board, thereby bringing the clamping frame closer to the setting frame and clamping the raised PCB board. This effectively achieves the clamping effect of the PCB board and simplifies the clamping operation of the PCB board.

[0009] Preferably, the driving assembly includes several elastic elements, each corresponding to the clamping frame. Each elastic element is used to drive the corresponding clamping frame to slide towards the setting frame by its own elastic force, so as to clamp the raised PCB board.

[0010] By adopting the above technical solution and setting the elastic element, when the ejector is removed from the fixing between the ejector and the clamping frame, the elastic element can drive the clamping frame to slide towards the setting frame through its own elastic force, thereby clamping the PCB board located between the clamping frames. This effectively achieves the driving effect of the clamping frame, and at the same time effectively reduces the probability of PCB board damage due to excessive driving force applied to the clamping frame, thus effectively ensuring the clamping effect of the PCB board.

[0011] Preferably, the clamping mechanism further includes a push-out assembly, which includes a push-out frame and a push-out member. The number of push-out frames is set to two, and they are respectively located on opposite sides of the setting frame. Each push-out frame is slidably connected to the setting frame, and the clamping frame on each side of the setting frame is located on the sliding path of the corresponding push-out frame, so that the clamping frame moves away from the setting frame after sliding. The push-out member is used to drive each push-out frame to slide.

[0012] By adopting the above technical solution, the ejection component is configured such that before the mounting frame approaches the PCB board, the ejection component drives the ejection frame to slide, thereby causing the ejection frame to abut against the clamping frame during the sliding process, driving the clamping frame to slide, and thus causing the clamping frame to open, allowing the PCB board below to enter the space between the clamping frames.

[0013] Preferably, the clamping mechanism further includes an ejection component, which includes a drive frame and a reversing component. The device body is also provided with a plurality of abutment frames, which are respectively located at the positions where the PCB board needs to be placed or clamped. The drive frame is slidably connected to the setting frame. Each abutment frame is located on the displacement path of the drive frame when it rises and falls together with the moving mechanism. Each drive frame is used to drive the clamping frame to slide through the reversing component.

[0014] By adopting the above technical solution and configuring the ejection component, the drive frame can gradually come into contact with the abutment frame while the setting frame and drive frame descend together. After the drive frame comes into contact with the abutment frame, it can slide, which in turn drives the gripper frame to slide through the reversing component. This causes the gripper frame to gradually open, effectively replacing the solution of using an active device to drive the gripper frame to slide. This reduces the overall weight of the setting frame and realizes the linkage between the gripper frame and the setting frame.

[0015] Preferably, the mounting frame is also provided with a positioning mechanism, which includes several positioning rods. The bottom of each positioning rod extends downward beyond the bottom of the mounting frame and is used to be inserted into the corresponding hole on the PCB board when it descends together with the mounting frame.

[0016] By adopting the above technical solution and setting the positioning mechanism, the positioning rod can be inserted into the corresponding hole on the PCB board when the setting frame moves downward, thereby positioning the PCB board and ensuring the positioning effect of the PCB board.

[0017] Preferably, the positioning rod is slidably connected to the setting frame, and the sliding direction is vertical. The positioning mechanism further includes a displacement component, which includes a displacement frame, a transmission frame, and a linkage. The displacement frame is rotatably connected to the setting frame, and one end of the displacement frame is rotatably connected to one end of the transmission frame. The other end of the transmission frame is rotatably connected to the positioning rod. The driving frame drives the displacement frame to rotate through the linkage.

[0018] By adopting the above technical solution and configuring the displacement component, during the sliding process of the drive frame, the drive frame can drive the displacement frame to rotate through the linkage, thereby causing the displacement frame to drive the transmission frame to move, which in turn causes the transmission frame to drive the positioning rod to slide, so that the end of the positioning rod approaches the PCB board and is finally inserted into the hole of the PCB board, thereby achieving the positioning of the PCB board. This effectively reduces the distance that the positioning rod needs to pass through the PCB board and reduces the length of the bottom of the positioning rod extending outside the mounting frame, thereby reducing damage to the PCB board caused by inaccurate positioning.

[0019] Preferably, the linkage component includes a linkage rod, which is disposed on the drive frame. The end of the displacement frame away from the transmission frame has a linkage groove, and one end of the linkage rod extends into the linkage groove and abuts against the inner wall of the linkage groove.

[0020] By adopting the above technical solution and setting the linkage rod, when the drive frame slides, the linkage rod can slide together with the drive frame, so that the end of the linkage rod can abut against the inner wall of the linkage groove, thereby driving the displacement frame to rotate by abutting against it, and thus driving the displacement frame. At the same time, it also realizes the linkage between the displacement frame and the drive frame, effectively replacing the solution of driving the displacement frame to slide through an active device, and reducing the weight of the mounting frame.

[0021] Preferably, the device body is also provided with a limiting mechanism, which includes a limiting frame and a limiting member. The limiting member is used to drive the limiting frame to rotate so that the rotated limiting frame abuts against the transport vehicle used to transport PCB boards, thereby limiting the transport vehicle used to transport PCB boards.

[0022] By adopting the above technical solution and setting the limiting mechanism, the limiting component can drive the limiting frame to rotate, so that after rotation, the limiting frame abuts against the transport vehicle used to transport the PCB board, limiting the transport vehicle used to transport the PCB board, thereby allowing the PCB board to be in a specific position, which facilitates the clamping of the PCB board.

[0023] Preferably, the moving mechanism includes a moving component and a lifting component. The lifting component is disposed on the moving component and is used to drive the clamping mechanism to move up and down. The moving component is used to drive the clamping mechanism to move along the length and width directions of the device body.

[0024] By adopting the above technical solution and configuring the moving mechanism, after the clamping mechanism clamps the PCB board, the lifting component can drive the clamping mechanism and the PCB board to move upward together, thereby lifting the PCB board and moving it under the drive of the moving component, so that the PCB board can be positioned above the subsequent conveyor belt or other feeding or discharging mechanism, realizing the loading and unloading of the PCB board.

[0025] In summary, this application includes at least one of the following beneficial technical effects: The design of the lifting mechanism, gripping mechanism, and moving mechanism allows the series of operations that originally required industrial robots to perform, such as gripping, moving, lifting, and placing, to be divided into multiple independent steps and executed by the corresponding mechanisms. This effectively reduces the acceleration and deceleration processes and redundant actions during the gripping, moving, lifting, and placing of PCB boards, thereby improving the efficiency of loading and unloading PCB boards and indirectly improving the manufacturing efficiency of PCB boards. The clamping mechanism is designed so that when the mounting frame approaches the PCB board, the drive component can drive the clamping frame to slide, thereby bringing the clamping frame closer to the mounting frame and clamping the raised PCB board. This effectively achieves the clamping effect of the PCB board, simplifies the clamping operation, and allows the elastic element to drive the clamping frame to clamp the PCB board located between the clamping frames through its own elastic force. This reduces the probability of PCB board damage due to excessive driving force applied to the clamping frame and effectively ensures the clamping effect of the PCB board. The design of the ejection component allows the drive frame to gradually come into contact with the abutment frame as the setting frame descends together with the drive frame. This allows the drive frame to slide after contacting the abutment frame, which in turn drives the gripper frame to slide via the reversing component. This causes the gripper frame to gradually open, effectively replacing the scheme of using an active device to drive the gripper frame to slide. This reduces the overall weight of the setting frame and achieves linkage between the gripper frame and the setting frame. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the overall PCB board loading and unloading device in Embodiment 1 of this application.

[0027] Figure 2 This is a structural schematic diagram of the lifting mechanism used in Embodiment 1 of this application.

[0028] Figure 3yes Figure 2 Enlarged view of part A in the middle.

[0029] Figure 4 This is a schematic diagram illustrating the structure of the mounting frame in Embodiment 1 of this application.

[0030] Figure 5 This is a schematic diagram illustrating the structure of the abutment frame in Embodiment 2 of this application.

[0031] Figure 6 This is a schematic diagram illustrating the structure of the positioning rod in Embodiment 2 of this application.

[0032] Figure 7 This is a schematic diagram of the structure of the displacement frame used in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Device body; 2. Lifting mechanism; 21. Lifting frame; 22. Lifting component; 3. Clamping mechanism; 31. Setting frame; 32. Clamping frame; 33. Drive assembly; 331. Elastic component; 34. Push-out assembly; 341. Push-out frame; 342. Push-out component; 343. Drive frame; 344. Reversing component; 3441. Reversing gear; 4. Moving mechanism; 41. Moving assembly; 411. Lateral linear module ; 412, Moving frame; 413, Longitudinal linear module; 42, Lifting assembly; 421, Lifting frame; 422, Lifting module; 43, Rotating assembly; 5, Limiting mechanism; 51, Limiting frame; 52, Limiting component; 6, Positioning pin; 7, Abutment frame; 8, Positioning mechanism; 81, Positioning rod; 82, Displacement assembly; 821, Displacement frame; 822, Transmission frame; 823, Linkage component; 8231, Linkage rod; 9, Linkage groove. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0035] Example 1

[0036] Embodiment 1 of this application discloses a PCB board loading and unloading device. (Refer to...) Figure 1 and Figure 2 The PCB board loading and unloading device includes a device body 1, which is further equipped with a lifting mechanism 2, a clamping mechanism 3, and a moving mechanism 4. The lifting mechanism 2 is used to lift the delivered PCB board, and the clamping mechanism 3 is mounted on the moving mechanism 4 and is used to clamp the lifted PCB board. The moving mechanism 4 is used to drive the clamping mechanism 3 to move, so that the clamping mechanism 3 moves closer to or further away from the conveyor belt used for input or output.

[0037] Reference Figure 1The device body 1 is placed on the ground, and two openings are provided on one side wall of the device body 1 to allow a trolley carrying PCB boards to enter or leave the openings. In this embodiment, a number of rollers are provided on the inner side wall of each opening, and each roller is rotatably connected to the device body 1 to guide the trolley carrying PCB boards entering the opening.

[0038] Reference Figure 2 and Figure 3 The device body 1 is also provided with limiting mechanisms 5. In this embodiment, the number of limiting mechanisms 5 is set to two, and they are respectively located in two openings on the device body 1. Each limiting mechanism 5 includes a limiting frame 51 and a limiting member 52. In this embodiment, the limiting member 52 is set as a geared motor. Each geared motor is fixedly installed in the device body 1, and the output shaft is fixedly connected to the corresponding limiting frame 51 by bolts. When the trolley carrying the PCB board enters the opening, the geared motor drives the limiting frame 51 to rotate, so that the side of the limiting frame 51 away from the opening abuts against the frame on the trolley carrying the PCB board, thereby limiting and positioning the trolley carrying the PCB board.

[0039] Reference Figure 1 and Figure 2 In this embodiment, the number of lifting mechanisms 2 is set to two, and they are located in two openings respectively. The lifting mechanism 2 includes a lifting frame 21 and a lifting element 22. The lifting frame 21 is slidably connected to the device body 1 through a slide rail, and the sliding direction is vertical. In this embodiment, the lifting element 22 is a combination structure of a reduction motor and a lead screw. The reduction motor is fixedly installed in the device body 1, and its output shaft is fixedly connected to one end of the lead screw through a coupling. The lead screw is vertically set and rotatably connected to the device body 1 through a bearing. One end of the lead screw passes through the corresponding lifting frame 21 and is threadedly connected to the corresponding lifting frame 21 to drive the lifting frame 21, so that the lifting frame 21 can lift the PCB board by abutting against the bottom of the PCB board on the transport trolley.

[0040] Reference Figure 1 In this embodiment of the application, when the moving mechanism 4 and the clamping mechanism 3 are set at the feeding position, the number of both is set to two and they are set one-to-one. When the moving mechanism 4 and the clamping mechanism 3 are set at the feeding position, the number of both can also be set to two to meet different feeding requirements.

[0041] Reference Figure 1Each moving mechanism 4 includes a moving component 41 and a lifting component 42. Each moving component 41 includes a transverse linear module 411, a moving frame 412, and a longitudinal linear module 413. Each moving frame 412 is slidably connected to the device body 1 via a slide rail, and the sliding direction is set to the length direction of the device body 1. Each transverse linear module 411 is fixedly installed on the device body 1, and the moving seat portion (i.e., the moving output portion) is fixedly connected to the end of the corresponding moving frame 412 by bolts to drive the corresponding moving frame 412 to slide. In this embodiment, a conveyor belt for input or output is provided directly below the sliding path of the moving frame 412, so that after the clamping mechanism 3 places the PCB board on the conveyor belt, the conveyor belt can drive the PCB board into the subsequent processing equipment or away from the processing equipment, realizing the loading and unloading of the PCB board.

[0042] Reference Figure 1 and Figure 4 Each longitudinal linear module 413 is fixedly mounted on a corresponding movable frame 412, and the sliding direction of the movable seat is set to the length direction of the movable frame 412 (i.e., perpendicular to the moving direction of the movable frame 412 itself). In this embodiment, each lifting assembly 42 includes a lifting frame 421 and a lifting module 422. Each lifting module 422 is fixedly mounted on the movable seat of the longitudinal linear module 413, so that the longitudinal linear module 413 can drive the lifting module 422 to move together. The lifting module 422 is vertically arranged, and the lifting frame 421 is fixedly mounted on the movable seat of the lifting module 422, so that the lifting module 422 drives the movable frame 421 to move up and down.

[0043] Reference Figure 4 The movable frame 421 is also equipped with a rotating component 43. In this embodiment, the rotating component 43 is a servo motor, which is fixedly mounted on the lifting frame 421, and its output shaft is vertically downward. Each clamping mechanism 3 includes a setting frame 31, a clamping frame 32, and a driving component 33. Each setting frame 31 is rotatably connected to the corresponding lifting frame 421 through a bearing, and each setting frame 31 is fixedly connected to the output shaft of the corresponding servo motor, so that the servo motor can drive the setting frame 31 to rotate.

[0044] Reference Figure 4Each mounting frame 31 has several gripping frames 32. In this embodiment, each mounting frame 31 has two gripping frames 32, located on both sides of the width of the mounting frame 31. Each gripping frame 32 is slidably connected to the corresponding mounting frame 31 via a slide rail, and the sliding direction is set to the width direction of the mounting frame 31. Each gripping frame 32 has two downward-extending rods at both ends along its length. Each rod is used to abut against the side wall of the raised PCB board to grip the PCB board. In this embodiment, the bottom end of each rod is bent towards the mounting frame 31 to reduce the probability of the PCB board falling after being gripped.

[0045] Reference Figure 4 The driving component 33 includes a plurality of elastic elements 331. In this embodiment, the number of elastic elements 331 is set to two groups, with each group corresponding to two gripping frames 32. Each group contains two elastic elements 331, and the two elastic elements 331 in each group are located at opposite ends of the corresponding gripping frame 32 along its length. In this embodiment, each elastic element 331 is configured as a tension spring. One end of each tension spring is sleeved on the setting frame 31, and the other end is sleeved on the corresponding gripping frame 32, so that the gripping frame 32 can slide towards the setting frame 31 through its own elastic force to grip the raised PCB board.

[0046] Reference Figure 4 The clamping mechanism 3 also includes an ejection component 34, which includes an ejection frame 341 and an ejection piece 342. In this embodiment, each mounting frame 31 has two ejection frames 341 and two ejection pieces 342, which are arranged in a one-to-one correspondence. Each ejection piece 342 is located between the corresponding two clamping frames 32.

[0047] Reference Figure 4 In this embodiment, each ejector 342 is configured as a cylinder, and each cylinder is fixedly mounted on a corresponding mounting frame 31. The piston rods of the two cylinders on the same mounting frame 31 are respectively oriented towards both sides of the width direction of the mounting frame 31. The piston rod of each cylinder is fixedly connected to the corresponding ejector 341 by bolts, so that each gripper 32 is located on the sliding path of the ejector 341. This allows the ejector 341 to push the gripper 32 to slide when it slides, thereby causing the gripper 32 to move away from the mounting frame 31 and opening the gripper 32 to allow the PCB below to enter the space between the gripper 32.

[0048] Reference Figure 4The mounting frame 31 is also equipped with four positioning pins 6, which are located at the four corners of the mounting frame 31. These pins are used to be inserted into the corresponding holes of the PCB board below when the mounting frame 31 is lowered, thereby positioning the PCB board.

[0049] The implementation principle of the PCB board loading and unloading device in Embodiment 1 of this application is as follows: When loading is required, a trolley loaded with PCB boards enters one of the openings of the device body 1, and then the limiting mechanism 5 limits and positions the trolley loaded with PCB boards. Subsequently, the lifting frame 21 is lifted upward under the drive of the lifting member 22, thereby lifting the PCB boards and moving the uppermost PCB board to a specified height.

[0050] Subsequently, the horizontal linear module 411 moves the movable frame 412 closer to the PCB board, while the vertical linear module 413 adjusts the position of the lifting frame 421 so that it is directly above the PCB board. Then, the lifting module 422 lowers the lifting frame 421, causing the mounting frame 31 to gradually approach the uppermost PCB board. During this process, the pusher 342 displaces the pusher frame 341, causing it to slide against the clamping frame 32, opening the two clamping frames. Then, when the uppermost PCB board is between the two clamping frames 32, the pusher 342 drives the pusher frame 341 back to its initial position, causing the clamping frame 32 to slide back under the action of the elastic member 331 and clamp the uppermost PCB board, exposing the support frame beneath it.

[0051] Subsequently, the moving component 41 and the lifting component 42 move the setting frame 31 above the input conveyor belt, causing the ejection component 34 to drive the gripping frame 32 to slide, thereby placing the gripped PCB board onto the conveyor belt, thus achieving PCB board placement. Then, another moving mechanism 4 moves another setting frame 31 to a position directly above the PCB board support frame, allowing the gripping mechanism 3 on the setting frame 31 to grip the support frame. After gripping, the moving mechanism 4 moves the frame directly above another opening, allowing the support frame to be placed into the trolley inside the opening for loading the support frame, thus achieving support frame unloading.

[0052] Example 2

[0053] The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 5 , Figure 6 and Figure 7The launching component 34 includes a drive frame 343 and a reversing component 344. In this embodiment, each gripper 32 has two drive frames 343, which are located directly above the two ends of the corresponding gripper 32 along its length. Each drive frame 343 is slidably connected to the corresponding setting frame 31 via a slide rail, and the sliding direction is set to the width direction of the setting frame 31.

[0054] Reference Figure 6 and Figure 7 Each drive frame 343 has spur teeth at its bottom and each gripper 32 has spur teeth at its top, and these spur teeth are arranged along the sliding direction of the corresponding drive frame 343 or gripper 32. Each reversing member 344 includes a reversing gear 3441, which is located between the corresponding drive frame 343 and gripper 32 and meshes with the spur teeth on the corresponding drive frame 343 and gripper 32, so that the drive frame 343 can drive the gripper 32 to slide through the reversing gear 3441 when sliding.

[0055] Reference Figure 5 , Figure 6 and Figure 7 The device body 1 is also provided with several abutment frames 7, which are located at the positions where the PCB board needs to be placed or clamped. In this embodiment, the abutment frames 7 are configured in three groups, with the three groups of abutment frames 7 located at the two openings and the input conveyor belt, respectively. Each group contains four abutment frames 7, corresponding to the four drive frames 343 on the corresponding mounting frame 31. Each abutment frame 7 is located on the displacement path of the corresponding drive frame 343 as the corresponding mounting frame 31 descends (i.e., when clamping or placing the PCB board). The bottom of each drive frame 343 and the top of each abutment frame 7 are provided with guide surfaces, so that after the abutment frame 7 abuts against the drive frame 343, the abutment frame 7 can drive the drive frame 343 to slide closer to the mounting frame 31 through abutment.

[0056] Reference Figure 6 and Figure 7 The mounting frame 31 is also equipped with a positioning mechanism 8, which includes four positioning rods 81. The bottom of each positioning rod 81 extends downward from the bottom of the mounting frame 31 and is located at the four included corners of the mounting frame 31, so that when it descends together with the mounting frame 31, the positioning rod 81 can be inserted into the corresponding hole of the PCB board or the support frame below the PCB board to position the PCB board or the support frame below the PCB board.

[0057] Reference Figure 6 and Figure 7Each positioning rod 81 is slidably connected to the mounting frame 31, and the sliding direction of the positioning rod 81 is always vertical. The positioning mechanism 8 also includes displacement components 82, of which four are arranged in a one-to-one correspondence with the positioning rods 81 and the drive frame 343. Each displacement component 82 includes a displacement frame 821, a transmission frame 822, and a linkage component 823, and each linkage component 823 includes a linkage rod 8231.

[0058] Reference Figure 6 and Figure 7 Each linkage rod 8231 is integrally formed with the top of the corresponding drive frame 343 and is cylindrical. A linkage groove 9 is formed through one end of the side wall of each moving frame 821, and one end of each linkage rod 8231 extends into the linkage groove 9 and abuts against the inner wall of the corresponding linkage groove 9. The middle of each moving frame 821 along its extension direction is rotatably connected to the corresponding mounting frame 31 via a pin. The end of each moving frame 821 away from the corresponding drive frame 343 is rotatably connected to one end of the corresponding transmission frame 822 via a pin. The other end of each transmission frame 822 is rotatably connected to the top of the corresponding positioning rod 81 via a pin.

[0059] Reference Figure 5 , Figure 6 and Figure 7 In the initial state, when the abutment frame 7 is not in contact with the drive frame 343, the clamping frame 32, under the elastic force of the elastic member 331, is located on the side of its sliding path away from the corresponding drive frame 343, that is, on the side closer to the setting frame 31. As the setting frame 31 gradually descends, causing the guide surface on the abutment frame 7 to abut against the drive frame 343, the drive frame 343 slides towards the setting frame 31. At this time, the drive frame 343, through the reversing gear 3441, drives the clamping frame 32 to slide away from the setting frame 31, thereby causing the clamping frame 32 to gradually open.

[0060] Reference Figure 5 , Figure 6 and Figure 7 During this process, the drive frame 343, through the contact between the linkage rod 8231 and the inner wall of the linkage groove 9, drives the displacement frame 821 to rotate. This causes the end of the displacement frame 821 away from the drive frame 343, which in turn causes the transmission frame 822 to shift. Consequently, the transmission frame 822 drives the corresponding positioning rod 81 to slide downwards, bringing the positioning rod 81 closer to the PCB board and gradually passing through the hole in the PCB board. When the positioning rod 81 has completely passed through the hole in the PCB board, the clamping frame 32 opens to a state slightly larger than the width of the PCB board. At this time, the lifting mechanism 2 lifts the PCB board a certain distance, allowing the clamping frame 32 to clamp the PCB board when it moves back.

[0061] The implementation principle of the PCB board loading and unloading device in Embodiment 2 of this application is as follows: When the setting frame 31 gradually descends, the guide surface on the abutment frame 7 comes into contact with the drive frame 343. The drive frame 343 then slides towards the setting frame 31. At this time, the drive frame 343 drives the clamping frame 32 to slide away from the setting frame 31 through the reversing gear 3441, thereby causing the clamping frame 32 to gradually open.

[0062] During this process, the drive frame 343, through the abutment of the linkage rod 8231 against the inner wall of the linkage groove 9, drives the displacement frame 821 to rotate. This causes the end of the displacement frame 821 away from the drive frame 343, which in turn causes the transmission frame 822 to shift. Consequently, the transmission frame 822 drives the corresponding positioning rod 81 to slide downwards, bringing the positioning rod 81 closer to the PCB board and gradually passing through the hole in the PCB board. When the positioning rod 81 has completely passed through the hole in the PCB board, the clamping frame 32 opens to a state slightly larger than the width of the PCB board. At this time, the lifting member 22 lifts the PCB board a certain distance, allowing the clamping frame 32 to clamp the PCB board when it moves back.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A PCB board loading and unloading device, comprising a device body (1), characterized in that: The device body (1) is also provided with a lifting mechanism (2), a clamping mechanism (3) and a moving mechanism (4). The lifting mechanism (2) is used to lift the PCB board that is being transported. The clamping mechanism (3) is disposed on the moving mechanism (4) and is used to clamp the PCB board after it has been lifted. The moving mechanism (4) is used to drive the clamping mechanism (3) to move so that the clamping mechanism (3) moves closer to or further away from the conveyor belt used for input or output.

2. The PCB board loading and unloading device according to claim 1, characterized in that: The clamping mechanism (3) includes a setting frame (31), a clamping frame (32), and a driving component (33). The setting frame (31) is mounted on the moving mechanism (4). The number of clamping frames (32) is set to several, and they are located on opposite sides of the setting frame (31). Each clamping frame (32) is slidably connected to the setting frame (31), and the sliding direction is parallel. The driving component (33) is used to drive each clamping frame (32) to slide, so that the clamping frame (32) clamps the raised PCB board.

3. The PCB board loading and unloading device according to claim 2, characterized in that: The drive assembly (33) includes a plurality of elastic elements (331), which correspond to the clamping frame (32). Each elastic element (331) is used to drive the corresponding clamping frame (32) to slide closer to the setting frame (31) by its own elastic force, so as to clamp the raised PCB board.

4. The PCB board loading and unloading device according to claim 2, characterized in that: The clamping mechanism (3) further includes a push-out assembly (34), which includes a push-out frame (341) and a push-out member (342). The number of push-out frames (341) is set to two, and they are located on opposite sides of the setting frame (31). Each push-out frame (341) is slidably connected to the setting frame (31), and the clamping frame (32) on each side of the setting frame (31) is located on the sliding path of the corresponding push-out frame (341), so that the clamping frame (32) moves away from the setting frame (31) after sliding. The push-out member (342) is used to drive each push-out frame (341) to slide.

5. A PCB board loading and unloading device according to claim 2, characterized in that: The clamping mechanism (3) further includes an ejection assembly (34), which includes a drive frame (343) and a reversing component (344). The device body (1) is also provided with a plurality of abutment frames (7). The plurality of abutment frames (7) are respectively located at the position where the PCB board needs to be placed or clamped. The drive frame (343) is slidably connected to the setting frame (31). Each abutment frame (7) is located on the displacement path when the drive frame (343) rises and falls together with the moving mechanism (4). Each drive frame (343) is used to drive the clamping frame (32) to slide through the reversing component (344).

6. A PCB board loading and unloading device according to claim 5, characterized in that: The mounting frame (31) is also provided with a positioning mechanism (8), which includes several positioning rods (81). The bottom of each positioning rod (81) extends downward from the bottom of the mounting frame (31) and is used to be inserted into the corresponding hole on the PCB board when it descends together with the mounting frame (31).

7. A PCB board loading and unloading device according to claim 6, characterized in that: The positioning rod (81) is slidably connected to the setting frame (31), and the sliding direction is vertical. The positioning mechanism (8) also includes a displacement component (82). The displacement component (82) includes a displacement frame (821), a transmission frame (822), and a linkage component (823). The displacement frame (821) is rotatably connected to the setting frame (31), and one end is rotatably connected to one end of the transmission frame (822). The other end of the transmission frame (822) is rotatably connected to the positioning rod (81). The drive frame (343) drives the displacement frame (821) to rotate through the linkage component (823).

8. A PCB board loading and unloading device according to claim 7, characterized in that: The linkage component (823) includes a linkage rod (8231), which is disposed on the drive frame (343). The displacement frame (821) has a linkage groove (9) at one end away from the transmission frame (822). One end of the linkage rod (8231) extends into the linkage groove (9) and abuts against the inner wall of the linkage groove (9).

9. A PCB board loading and unloading device according to claim 1, characterized in that: The device body (1) is also provided with a limiting mechanism (5). The limiting mechanism (5) includes a limiting frame (51) and a limiting member (52). The limiting member (52) is used to drive the limiting frame (51) to rotate so that the rotated limiting frame (51) abuts against the transport vehicle used to transport PCB boards, thereby limiting the transport vehicle used to transport PCB boards.

10. A PCB board loading and unloading device according to claim 1, characterized in that: The moving mechanism (4) includes a moving component (41) and a lifting component (42). The lifting component (42) is disposed on the moving component (41) and is used to drive the clamping mechanism (3) to move up and down. The moving component (41) is used to drive the clamping mechanism (3) to move along the length and width directions of the device body (1).

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