A multi-station AOI inspection device

Abstract

This utility model belongs to the field of electronic manufacturing technology, specifically a multi-station AOI inspection device, comprising: a base, on which a first electric telescopic rod is symmetrically mounted, a second electric telescopic rod is mounted at the telescopic end of the first electric telescopic rod, a first support frame is mounted at the telescopic end of the second electric telescopic rod, and a first drive motor is mounted on one side of the first support frame; a push rod rotates to apply a pushing force to the force-bearing rods, thereby driving the rotating plate to rotate; each rotation of the first drive motor drives the push rod to apply a pushing force to a set of force-bearing rods through the connecting shaft, causing the rotating plate to rotate 45°, thereby applying external force to the force-bearing rods through the push rod, which can cause the PCB chip to flip during inspection, allowing the industrial camera to directly capture images of both sides of the double-sided mounted PCB board during the inspection process, thus enabling the device to inspect both single-sided and double-sided mounted PCB boards, thereby expanding the application range of the inspection device.

Description

Technical Field

[0001] This utility model belongs to the field of electronic manufacturing technology, specifically a multi-station AOI inspection device. Background Technology

[0002] AOI (Automated Optical Inspection) devices are inspection equipment used in the electronics manufacturing industry. They are mainly used for quality monitoring of PCB production lines. They use optical imaging technology to detect defects in processes such as soldering and mounting. In order to improve inspection efficiency, a multi-station AOI inspection device is needed.

[0003] A Chinese patent with authorization announcement number CN209198808U discloses an AOI (Automated Optical Inspection) device. This utility model utilizes a combination of a front camera, a front side camera, a rear side camera, and a rotating stage. As the rotating stage completes one revolution, the same backlight panel is simultaneously loaded, photographed from three angles, and unloaded, thus achieving simultaneous inspection and loading / unloading. This improves work efficiency, saves on equipment investment, and reduces production costs. Multi-angle photography and image comparison enhance the accuracy of the inspection. The use of a cover and ionizer provides dust protection, ensuring a dust-free operation throughout the inspection process, reducing the impact of dust on inspection, and further improving accuracy.

[0004] However, the above solution still has some problems. It can only inspect one side of the PCB board, and therefore cannot inspect double-sided PCB boards, which reduces the applicable scope of the inspection device. Therefore, a multi-station AOI inspection device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a multi-station AOI inspection device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a multi-station AOI inspection device, comprising: a base, on which first electric telescopic rods are symmetrically mounted; a second electric telescopic rod is mounted on the telescopic end of the first electric telescopic rod; a first support frame is mounted on the telescopic end of the second electric telescopic rod; a first drive motor is mounted on one side of the first support frame; a connecting shaft is fixedly connected to the output end of the first drive motor; a push rod is fixedly connected to the connecting shaft; a second support frame is fixedly connected to one side of the first support frame; a rotating plate is rotatably connected inside the second support frame; a force-bearing rod is fixedly connected to one side of the rotating plate; the push rod and the force-bearing rod are drively connected; and the rotating plate... A first connecting rod is fixedly connected to one side of the second support frame. The first connecting rod passes through one side of the second support frame. A clamping plate is fixedly connected to one end of the first connecting rod. An anti-slip pad is embedded inside the clamping plate. A second drive motor is symmetrically installed on the base. A second connecting rod is fixedly connected to the output end of the second drive motor. The second connecting rod is rotatably connected inside the base. A bidirectional screw is fixedly connected to one end of the second connecting rod. One end of the bidirectional screw is rotatably connected inside the base. By applying external force to the force rod through the push rod, the PCB chip can be rotated during detection. This allows the device to detect single-sided and double-sided mounted PCBs, thereby expanding the applicability of the detection device.

[0007] Preferably, the bidirectional screw is threadedly connected to an adjusting plate, the adjusting plate has an internal thread, and a reinforcing frame is symmetrically hinged to the adjusting plate. Bolts are threadedly connected to the reinforcing frame. Because the thread on the bidirectional screw matches the internal thread of the adjusting plate, the position of the adjusting plate and the industrial camera can be adjusted when the bidirectional screw rotates.

[0008] Preferably, a cast iron plate is fixedly connected to the inner wall of the reinforcement frame, a honeycomb plate is provided on the outer side of the cast iron plate, and a damping pad is provided on the outer side of the honeycomb plate. The cast iron plate is located on the outermost side, which can increase the overall weight of the reinforcement frame, thereby reducing the overall resonance frequency.

[0009] Preferably, an aluminum alloy plate is provided on the outer side of the damping pad, and the honeycomb plate, damping pad and aluminum alloy plate are all arranged inside the reinforcement frame, and the reinforcement frame is in contact with the industrial camera. The honeycomb structure in the honeycomb plate can convert vibration energy into structural deformation energy, thereby reducing the vibration transmission rate and reducing the vibration experienced by the industrial camera.

[0010] Preferably, a third drive motor is installed on one side of the base, and a first rotating shaft is fixedly connected to the output end of the third drive motor. A transmission belt is driven through the first rotating shaft, and a second rotating shaft is driven through the inner wall of the transmission belt. The first and second rotating shafts are rotatably connected inside the base. After the industrial camera takes pictures of the soldering on the surface of the PCB board, the third drive motor rotates in the opposite direction, which drives the first rotating shaft to rotate in the opposite direction, so that the PCB board can be carried out from below the industrial camera for collection.

[0011] Preferably, the detection device is externally connected to a controller. The external controller is used to control the start and stop of the first electric telescopic rod, the second electric telescopic rod, the first drive motor, the two sets of second drive motors, the third drive motor, and the industrial camera. At the same time, the external controller receives and transmits the data captured by the industrial camera. By controlling the first electric telescopic rod, the second electric telescopic rod, the first drive motor, the two sets of second drive motors, the third drive motor, and the industrial camera through the external controller, the ease of use of the detection device is improved.

[0012] The advantages of this invention are: the push rod rotates to apply a pushing force to the force-bearing rod, thereby driving the rotating plate to rotate. Each rotation of the first drive motor can drive the push rod to apply a pushing force to a group of force-bearing rods through the connecting shaft, causing the rotating plate to rotate 45°. Thus, the push rod applies an external force to the force-bearing rods, which can cause the PCB chip to flip during inspection. This allows the industrial camera to directly capture images of both sides of the double-sided PCB board during the inspection process. This enables the device to inspect both single-sided and double-sided PCB boards, thereby expanding the applicability of the inspection device.

[0013] This utility model increases the overall weight of the reinforcing frame by using cast iron plates, thereby reducing the overall resonance frequency. The honeycomb structure within the honeycomb plate converts vibration energy into structural deformation energy, reducing the vibration transmission rate. The aluminum alloy plate is attached to the industrial camera, providing a flat surface for the camera's installation while ensuring rigidity. Through the structure of the multi-layer composite vibration damping plate, the vibration generated during the movement of the industrial camera is weakened multiple times, thereby improving the stability of the industrial camera when it is moved by the bidirectional screw, and further improving the clarity and accuracy of the industrial camera's images of welding points. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is a schematic cross-sectional view of the overall structure; Figure 3 This is a schematic cross-sectional view of the rotating component; Figure 4 This is a schematic diagram of a moving component; Figure 5 This is a schematic cross-sectional view of the vibration damping component.

[0016] In the diagram: 1. Base; 2. First electric telescopic rod; 3. Second electric telescopic rod; 4. First support frame; 5. First drive motor; 6. Connecting shaft; 7. Push rod; 8. Second support frame; 9. Rotating plate; 10. Force-bearing rod; 11. Clamping plate; 12. Anti-slip pad; 13. Second drive motor; 14. Bidirectional screw; 15. Adjusting plate; 16. Reinforcing frame; 17. Bolt; 18. Cast iron plate; 19. Honeycomb panel; 20. Damping pad; 21. Aluminum alloy plate; 22. Third drive motor; 23. First rotating shaft; 24. Conveyor belt; 25. Second rotating shaft. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5As shown, a multi-station AOI inspection device includes: a base 1, on which first electric telescopic rods 2 are symmetrically mounted; a second electric telescopic rod 3 is mounted at the telescopic end of the first electric telescopic rod 2; a first support frame 4 is mounted at the telescopic end of the second electric telescopic rod 3; a first drive motor 5 is mounted on one side of the first support frame 4; a connecting shaft 6 is fixedly connected to the output end of the first drive motor 5; a push rod 7 is fixedly connected to the connecting shaft 6; a second support frame 8 is fixedly connected to one side of the first support frame 4; a rotating plate 9 is rotatably connected inside the second support frame 8; a force-bearing rod 10 is fixedly connected to one side of the rotating plate 9; the push rod 7 and the force-bearing rod 10 are connected by a transmission; a first connecting rod is fixedly connected to one side of the rotating plate 9; the first connecting rod passes through one side of the second support frame 8; a clamping plate 11 is fixedly connected to one end of the first connecting rod; and an anti-slip pad 12 is embedded inside the clamping plate 11. A second drive motor 13 is symmetrically mounted on the base 1. The output end of the second drive motor 13 is fixedly connected to a second connecting rod. The second connecting rod is rotatably connected inside the base 1. One end of the second connecting rod is fixedly connected to a bidirectional screw 14. One end of the bidirectional screw 14 is rotatably connected inside the base 1. An adjusting plate 15 is threaded onto the bidirectional screw 14. The adjusting plate 15 has an internal thread. A reinforcing frame 16 is symmetrically hinged onto the adjusting plate 15. Bolts 17 are threaded onto the reinforcing frame 16. A cast iron plate 18 is fixedly connected to the inner wall of the reinforcing frame 16. A honeycomb plate 19 is provided on the outer side of the cast iron plate 18. A damping pad 20 is provided on the outer side of the honeycomb plate 19. An aluminum alloy plate 21 is provided on the outer side of the damping pad 20. The honeycomb plate 19, the damping pad 20, and the aluminum alloy plate 21 are all located inside the reinforcing frame 16, and the reinforcing frame 16 is in contact with the industrial camera. AOI (Automated Optical Inspection) devices are inspection equipment used in the electronics manufacturing industry. To improve inspection efficiency, a multi-station AOI device is needed. In actual use, the PCB chip to be inspected is placed on the conveyor belt 24, below the bidirectional screw 14. An external controller activates the industrial camera, the first electric telescopic rod 2, and the second electric telescopic rod 3. The two sets of second electric telescopic rods 3 move, pushing the second support frame 8 and clamping plate 11 outwards, allowing the two sets of anti-slip pads 12 to clamp the PCB chip on both sides. The first electric telescopic rod 2 moves the PCB chip upwards, and then the external... The controller starts the first drive motor 5, which drives the connecting shaft 6 and push rod 7 to rotate. When push rod 7 rotates, it applies a pushing force to the force-bearing rod 10, thereby driving the rotating plate 9 to rotate. Each rotation of the first drive motor 5 drives the push rod 7 through the connecting shaft 6 to apply a pushing force to a set of force-bearing rods 10, causing the rotating plate 9 to rotate 45°. This allows the push rod 7 to apply an external force to the force-bearing rods 10, which can cause the PCB chip to flip during inspection. This enables the device to inspect single-sided and double-sided mounted PCBs, thus expanding the applicability of the inspection device. During the inspection process, the external controller starts the second drive motor 13, which drives... The second connecting rod and the bidirectional screw 14 rotate. Because the thread on the bidirectional screw 14 matches the internal thread of the adjusting plate 15, the rotation of the bidirectional screw 14 can adjust the position of the adjusting plate 15 and the industrial camera, thereby enabling the imaging of the solder paste shape and wetting angle on the PCB board surface. The image is then transmitted to the monitor via an external controller to complete the inspection of the solder joint quality of the PCB board. When adjusting the position of the industrial camera, the cast iron plate 18 is located on the outermost side, which can increase the overall weight of the reinforcement frame 16, thereby reducing the overall resonance frequency. The honeycomb structure in the honeycomb plate 19 can convert vibration energy into structural deformation. The damping pad 20 can dissipate vibration energy by reducing the vibration transmission rate. The aluminum alloy plate 21 is attached to the industrial camera, providing a flat surface for the installation of the industrial camera while ensuring rigidity. Through the structure of the multi-layer composite vibration damping plate, the vibration generated when the industrial camera moves is weakened multiple times, thereby improving the stability of the industrial camera when it is driven by the bidirectional screw 14. This improves the clarity and accuracy of the industrial camera in capturing welding points. After the two sides of the industrial camera are fixed by the vibration damping components on both sides, the two sides are connected and fixed with bolts 17, which can fix the industrial camera under the adjustment plate 15 to ensure the stability of the industrial camera.

[0019] Please see Figure 1-5As shown, a third drive motor 22 is installed on one side of the base 1. The output end of the third drive motor 22 is fixedly connected to a first rotating shaft 23. A transmission belt 24 is driven through the first rotating shaft 23. A second rotating shaft 25 is driven through the inner wall of the transmission belt 24. The first rotating shaft 23 and the second rotating shaft 25 are rotatably connected inside the base 1. The detection device is externally connected to a controller. The external controller is used to control the start and stop of the first electric telescopic rod 2, the second electric telescopic rod 3, the first drive motor 5, the two sets of second drive motors 13, the third drive motor 22 and the industrial camera. At the same time, the external controller receives and transmits the data captured by the industrial camera. The PCB board to be inspected is placed on the conveyor belt 24. The third drive motor 22 is started by the external controller, which drives the first rotating shaft 23 to rotate. This drives the conveyor belt 24 to rotate synchronously with the first rotating shaft 23 at the same speed. This allows the PCB board to be inspected to be transported to the area below the industrial camera. After the industrial camera takes pictures of the soldering on the surface of the PCB board, the third drive motor 22 rotates in the opposite direction, which drives the first rotating shaft 23 to rotate in the opposite direction. This allows the PCB board to be transported out from under the industrial camera for collection.

[0020] Working principle: The PCB board to be inspected is placed on the conveyor belt 24. An external controller starts the third drive motor 22, which drives the first rotating shaft 23 to rotate, thereby driving the conveyor belt 24 to rotate synchronously with the first rotating shaft 23 at the same speed. This transports the PCB board to be inspected to below the industrial camera. The external controller then starts the industrial camera, the first electric telescopic rod 2, and the second electric telescopic rod 3. The two sets of second electric telescopic rods 3 move, pushing the second support frame 8 and clamping plate 11 outwards, allowing the two sets of anti-slip pads 12 to clamp the PCB chip on both sides. The first electric telescopic rod 2 operates, causing the PCB chip to move upwards. Then, the first drive motor 5 is activated via an external controller, driving the connecting shaft 6 and push rod 7 to rotate. When push rod 7 rotates, it applies a pushing force to the force-bearing rod 10, thereby causing the rotating plate 9 to rotate. Each rotation of the first drive motor 5 drives the push rod 7 via the connecting shaft 6 to apply a pushing force to a set of force-bearing rods 10, causing the rotating plate 9 to rotate 45°. This allows the push rod 7 to apply external force to the force-bearing rods 10, enabling the PCB chip to flip during inspection. This allows the device to inspect single-sided and double-sided mounted PCBs. The second drive motor 5 is then activated via an external controller. The motor 13 drives the second connecting rod and the bidirectional screw 14 to rotate, adjusting the position of the adjustment plate 15 and the industrial camera. This allows for the capture of the solder paste shape and wetting angle on the PCB board surface. When adjusting the position of the industrial camera, the honeycomb structure within the honeycomb plate 19 converts vibration energy into structural deformation energy, reducing the vibration transmission rate. The cast iron plate 18, located on the outermost side, increases the overall weight of the reinforcement frame 16, thereby reducing the overall resonance frequency. The aluminum alloy plate 21 is attached to the industrial camera, providing a flat surface for its installation while ensuring rigidity. Through the structure of the multi-layer composite vibration damping plate, the industrial camera is repeatedly subjected to vibration. The vibration generated when the camera moves is reduced, thereby improving the stability of the industrial camera when it moves driven by the bidirectional screw 14, and thus improving the clarity and accuracy of the industrial camera in capturing the welding points. The detection time for each test is set by an external controller. After the detection time is over, the first electric telescopic rod 2 retracts, causing the PCB board to descend and be placed on the surface of the conveyor belt 24. The two sets of second electric telescopic rods 3 retract, releasing the fixation on the PCB board. Then, the third drive motor 22 rotates in the opposite direction, causing the first rotating shaft 23 to rotate in the opposite direction, which can drive the PCB board to be carried out from under the industrial camera for collection.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A multi-station AOI inspection device, characterized in that: include: A base (1) is provided, on which a first electric telescopic rod (2) is symmetrically mounted. A second electric telescopic rod (3) is mounted on the telescopic end of the first electric telescopic rod (2). A first support frame (4) is mounted on the telescopic end of the second electric telescopic rod (3). A first drive motor (5) is mounted on one side of the first support frame (4). A connecting shaft (6) is fixedly connected to the output end of the first drive motor (5). A push rod (7) is fixedly connected to the connecting shaft (6). A second support frame (8) is fixedly connected to one side of the first support frame (4). A rotating plate (9) is rotatably connected inside the second support frame (8). A force-bearing rod (1) is fixedly connected to one side of the rotating plate (9). 0), the push rod (7) and the force rod (10) are connected by transmission. A first connecting rod is fixedly connected to one side of the rotating plate (9). The first connecting rod passes through one side of the second support frame (8). A clamping plate (11) is fixedly connected to one end of the first connecting rod. An anti-slip pad (12) is embedded inside the clamping plate (11). A second drive motor (13) is symmetrically installed on the base (1). A second connecting rod is fixedly connected to the output end of the second drive motor (13). The second connecting rod is rotatably connected to the inside of the base (1). A bidirectional screw (14) is fixedly connected to one end of the second connecting rod. One end of the bidirectional screw (14) is rotatably connected to the inside of the base (1).

2. The multi-station AOI inspection device according to claim 1, characterized in that: The bidirectional screw (14) is threaded with an adjusting plate (15), the adjusting plate (15) has an internal thread, and a reinforcing frame (16) is symmetrically hinged on the adjusting plate (15), and a bolt (17) is threaded on the reinforcing frame (16).

3. The multi-station AOI inspection device according to claim 2, characterized in that: The inner wall of the reinforcing frame (16) is fixedly connected to a cast iron plate (18), and a honeycomb plate (19) is provided on the outer side of the cast iron plate (18), and a damping pad (20) is provided on the outer side of the honeycomb plate (19).

4. The multi-station AOI inspection device according to claim 3, characterized in that: An aluminum alloy plate (21) is provided on the outside of the damping pad (20). The honeycomb plate (19), the damping pad (20) and the aluminum alloy plate (21) are all located inside the reinforcing frame (16), and the reinforcing frame (16) is attached to the industrial camera.

5. The multi-station AOI inspection device according to claim 1, characterized in that: A third drive motor (22) is installed on one side of the base (1). The output end of the third drive motor (22) is fixedly connected to a first rotating shaft (23). A transmission belt (24) is driven on the first rotating shaft (23). A second rotating shaft (25) is driven on the inner wall of the transmission belt (24). The first rotating shaft (23) and the second rotating shaft (25) are rotatably connected inside the base (1).

6. The multi-station AOI inspection device according to claim 1, characterized in that: The detection device is connected to an external controller, which is used to control the start and stop of the first electric telescopic rod (2), the second electric telescopic rod (3), the first drive motor (5), the two sets of second drive motors (13), the third drive motor (22) and the industrial camera. At the same time, the external controller receives and transmits the data captured by the industrial camera.

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