Integrated circuit PCB appearance detection device

Abstract

The utility model belongs to the field of PCB (Printed Circuit Board) detection, particularly relates to an appearance detection device for an integrated circuit PCB, and aims to solve the problems that only one surface of the conventional PCB can be shot and the other surface of the conventional PCB needs to be turned over manually when the conventional PCB is shot, the surface of the PCB is easy to corrode due to sweat on the hand, the working efficiency of the PCB is reduced, and the production cost of the PCB is reduced. In order to solve the problems that in the prior art, in the prior art, in the long-time working process, the requirement for physical strength of workers is high, the following scheme is provided, the device comprises a frame and a display screen, image analysis equipment is fixedly arranged at the top of the frame, the bottom of the display screen is fixedly connected with the top of the frame, and the display screen is connected with the image analysis equipment through a circuit; a camera is fixedly arranged at the center of the inner wall of the top of the frame body, efficient and automatic detection of the appearance of the PCB is achieved, the detection efficiency and accuracy are improved, manual overturning of the PCB is not needed, the working efficiency is improved, contamination of hand sweat can be reduced, and the safety of the PCB is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board detection, in particular to an appearance detection device for an integrated circuit PCB board. Background Technique

[0002] The PCB board is a printed circuit board with an insulating board as the base material, cut into a certain size, with at least one conductive pattern attached thereto and holes (such as component holes, fastening holes, metallized holes, etc.) arranged thereon, used to replace the chassis for mounting electronic components in the past and to realize the mutual connection between electronic components. After the integrated circuit is produced and processed, it needs to be detected, and appearance detection is an essential detection item. During appearance detection, generally, a camera is used to take pictures of the appearance of the PCB board, and an image analysis device adapted to the camera is used for analysis.

[0003] However, the following problems exist in the existing detection devices: When taking pictures of the PCB board, generally only one side can be photographed, and the other side needs to be manually flipped. Since there is sweat on the hand, it is easy to corrode the surface of the PCB board, and the working efficiency is reduced. At the same time, during the long-term working process, the physical strength requirement for the staff is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages in the existing technology that when taking pictures of the PCB board, generally only one side can be photographed, and the other side needs to be manually flipped. Since there is sweat on the hand, it is easy to corrode the surface of the PCB board, and the working efficiency is reduced. At the same time, during the long-term working process, the physical strength requirement for the staff is relatively high, and an appearance detection device for an integrated circuit PCB board is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An appearance detection device for an integrated circuit PCB board, including a frame body and a display screen. An image analysis device is fixedly arranged at the top of the frame body. The bottom of the display screen is fixedly connected to the top of the frame body. The display screen is connected to the image analysis device through a circuit. A camera is fixedly arranged at the center of the inner wall of the top of the frame body. The camera is connected to the image analysis device through a circuit. Support columns are fixedly connected to the four corners of the bottom of the frame body. Two moving holes are opened at the bottom of the frame body. A controller is fixedly connected to the inner wall of the bottom of the frame body;

[0007] A clamping mechanism, which is arranged on the frame body for clamping the PCB board;

[0008] A rotating mechanism, which is arranged on the frame body for flipping the PCB board;

[0009] The shielding mechanism is arranged on the frame body to shield and protect the camera.

[0010] In a possible design, the clamping mechanism includes a second motor, two connecting blocks, a bidirectional lead screw, two moving rods, two sliding rods, two annular grooves and two clamping plates. The tops of the two connecting blocks are respectively fixedly connected to both sides of the bottom of the same frame body. One side of the second motor is fixedly connected to one side of the connecting block through a bolt. The output shaft of the second motor penetrates one side of the connecting block and is rotatably connected to the connecting block. The output shaft of the second motor is fixedly connected to one end of the bidirectional lead screw. The two ends of the bidirectional lead screw are respectively rotatably connected to the closer sides of the two connecting blocks. Both of the two moving rods are threadedly sleeved on the same bidirectional lead screw. The tops of the two moving rods respectively penetrate through the two moving holes and extend into the frame body. A sliding rod shaped like a T is fixedly connected to the closer side of each of the two moving rods. A ball is rotatably connected to each of the two sliding rods. The two annular grooves are respectively arranged on the farther sides of the two clamping plates and are adapted to the two sliding rods. The two sliding rods are respectively slidably connected to the two annular grooves.

[0011] In a possible design, the rotating mechanism includes two first motors, two rotating discs, two connecting columns, two moving columns, four sliding grooves and four sliders. One side of each of the two first motors is fixedly connected to both sides of the same frame body through bolts. The output shafts of the two first motors respectively penetrate through both sides of the same frame body and are rotatably connected to the frame body. The output shafts of the two first motors are respectively fixedly connected to the farther sides of the two rotating discs. The farther sides of the two rotating discs are respectively slidably connected to the inner walls of both sides of the same frame body. The closer sides of the two rotating discs are respectively fixedly connected to the farther ends of the two connecting columns. A moving groove is formed at the closer end of each of the two connecting columns. The two moving columns are respectively slidably connected to the two moving grooves. One side of each of the four sliders is fixedly connected to the top and bottom of the two moving columns respectively. The four sliding grooves are respectively arranged on the inner walls of the tops and bottoms of the two moving grooves. The four sliders are respectively slidably connected to the four sliding grooves. The closer ends of the two moving columns are respectively fixedly connected to the farther sides of the two clamping plates.

[0012] In a possible design, the shielding mechanism includes an electric telescopic rod, a moving block and a shielding plate. The fixed end of the electric telescopic rod is fixedly connected to the inner wall of one side of the frame body. The telescopic end of the electric telescopic rod is fixedly connected to one side of the moving block. The bottom of the moving block is fixedly connected to one side of the top of the shielding plate. The shielding plate is located directly below the camera and is in contact with the bottom of the camera.

[0013] In a possible design, two positioning rods are fixedly connected to the inner walls on both sides of the frame body. The two positioning rods are respectively located on the front side and the rear side of the same camera. Two positioning holes adapted to the positioning rods are formed in the moving block, and the moving block is slidably sleeved on the two positioning rods through the positioning holes.

[0014] In a possible design, soft pads for reducing the clamping damage to the PCB board are fixedly arranged on the sides of the two clamping plates close to each other.

[0015] In a possible design, two triangular blocks are fixedly connected to the inner wall of the top of the frame body. The two triangular blocks are respectively located on the front side and the rear side of the camera. Lighting lamps for illuminating the PCB board are fixedly arranged on the inclined surfaces of the two triangular blocks.

[0016] In this application, the camera is fixed on the top of the frame body and is responsible for taking images of the PCB board. The captured image data is transmitted to the image analysis device through a circuit for preprocessing (such as denoising, enhancement, etc.) and feature extraction. The image analysis device performs target detection or classification recognition based on the extracted features to determine whether the PCB board has defects or does not meet the standards. During detection, the clamping mechanism starts the second motor through the controller to drive the bidirectional lead screw to rotate, and moves the moving rod and the sliding rod, so as to move the clamping plate closer to the PCB board held and moved between the clamping plates by an external robotic arm, realizing clamping. The soft pad design on the clamping plate reduces the clamping damage to the PCB board and protects the safety and integrity of the PCB board. When the PCB board needs to be flipped, the rotating mechanism starts the first motor through the controller to drive the rotating disk to rotate, and drives the clamping plate and the PCB board to flip through the connecting column and the moving column. When the moving column moves through the clamping plate, the slider slides in the chute to ensure that the moving column can drive the PCB board to flip. At the same time, the sliding rod on the moving rod rotates through the ball in the annular groove, so as to ensure the rotation of the clamping plate and ensure the flipping of the PCB board. The shielding mechanism starts the electric telescopic rod through the controller to drive the moving block and the shielding plate to move, realizing the opening of the camera lens. At the same time, when the camera is not in use, the camera lens is shielded and protected by the shielding plate, which helps to reduce the contamination of the lens by foreign objects and ensure the clarity of the captured images. The lighting lamps on the triangular blocks provide stable lighting conditions for the camera to ensure the image quality of the captured images. The display screen is connected to the image analysis device and displays the detection results and images in real time for the operator to view.

[0017] The beneficial effects of the utility model are as follows:

[0018] In the present utility model, through the clamping mechanism, the rotating mechanism and the shielding mechanism, the efficient and automatic detection of the appearance of the PCB board is realized, the detection efficiency and accuracy are improved, and it is not necessary to manually flip the PCB board, which improves the work efficiency, reduces the contamination of hand sweat, ensures the safety of the PCB board, effectively reduces the risk of foreign matter contamination on the camera lens, extends the service life of the camera, and ensures the quality of the captured images. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 is the clamping structural schematic diagram of the present utility model;

[0021] Figure 3 is the sectional view of the rotating structure of the present utility model;

[0022] Figure 4 is the bottom view of the partial structure of the present utility model;

[0023] Figure 5 is the open schematic diagram of the shielding structure of the present utility model;

[0024] Figure 6 is the enlarged sectional view explosion diagram of the partial structure of the present utility model.

[0025] In the figure: 1, frame body; 2, display screen; 3, first motor; 4, clamping plate; 5, moving rod; 6, bidirectional lead screw; 7, soft pad; 8, annular groove; 9, sliding rod; 10, camera; 11, connecting block; 12, second motor; 13, rotating disc; 14, connecting column; 15, moving column; 16, chute; 17, slider; 18, triangular block; 19, lighting lamp; 20, positioning rod; 21, electric telescopic rod; 22, shielding plate; 23, moving block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1-6, A detection device includes a frame 1 and a display screen 2. The frame 1 serves as the main body of the entire detection device, and an image analysis device is fixedly installed on its top for processing the image data captured by the camera 10. The display screen 2 is located on the top of the frame 1 and is connected to the image analysis device through a circuit for displaying the detection results and images. The camera 10 is fixed at the center of the inner wall of the top of the frame 1 and is connected to the image analysis device through a circuit, responsible for taking images of the PCB board.

[0029] The clamping mechanism includes a second motor 12, two connecting blocks 11, a bidirectional lead screw 6, two moving rods 5, two sliding rods 9, two annular grooves 8, and two clamping plates 4. The second motor 12 drives the bidirectional lead screw 6 to rotate, driving the two moving rods 5 to move relatively or away from each other on the lead screw. The moving rods 5 drive the clamping plates 4 to approach or move away from the PCB board through the sliding rods 9 to achieve clamping. The shape of the sliding rod 9 is set to T-shaped to prevent the sliding rod 9 from detaching from the clamping plate 4. When the clamping plate 4 moves, it drives the moving column 15, facilitating the rotation of the PCB board when the PCB board needs to be flipped.

[0030] The rotating mechanism includes two first motors 3, two rotating disks 13, two connecting columns 14, two moving columns 15, four chutes 16, and four sliders 17. The first motor 3 drives the rotating disk 13 to rotate, and the rotating disk 13 drives the moving column 15 to move through the connecting column 14, thereby realizing the flipping of the clamping plate 4 and the PCB board. When the moving column 15 moves due to the movement of the clamping plate 4, the slider 17 on the moving column 15 slides in the chute 16, ensuring that the PCB board can be rotated when it needs to be flipped. At the same time, the slider 17 and the chute 16 can also prevent the moving column 15 from detaching from the connecting column 14.

[0031] The shielding mechanism includes an electric telescopic rod 21, a moving block 23, and a shielding plate 22. The electric telescopic rod 21 pushes the moving block 23 to slide along the positioning rod 20, thereby driving the shielding plate 22 to move, thereby shielding or opening the lens of the camera 10, realizing the shielding protection of the camera 10, reducing foreign objects contaminated on the lens of the camera 10, and thus ensuring the clarity of the captured images.

[0032] This application can be used in the field of PCB board detection and can also be used in other fields applicable to this application.

[0033] Embodiment 2

[0034] Reference Figures 1-6 , Improved on the basis of Embodiment 1, an integrated circuit PCB board appearance detection device includes:

[0035] The bottom of the housing 1 is provided with support columns and moving holes, which facilitate the stability of the device and the movement of the clamping mechanism. In addition, a controller is also provided inside the housing 1 to control the operation of the entire detection device. At the same time, the triangular block 18 and the lighting lamp 19 are arranged on the front and rear sides of the camera 10 to provide stable lighting conditions.

[0036] On the side where the clamping plates 4 are close to each other, that is, the side for clamping the PCB board, a soft pad 7 is provided, which can reduce the clamping damage to the PCB board when clamping the PCB board, thereby ensuring the safety of the PCB board.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the controller, the image analysis device, the display screen 2, the first motor 3, the second motor 12, the electric telescopic rod 21, the camera 10, and the lighting lamp 19 are common knowledge. They all belong to conventional means or well-known common sense, and will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience. The image analysis device, the display screen 2, the first motor 3, the second motor 12, the electric telescopic rod 21, the camera 10, and the lighting lamp 19 are connected to the controller through wires and are powered by an external power source.

[0038] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integrated circuit PCB board appearance detection device, characterized in that It includes a housing (1) and a display screen (2). An image analysis device is fixedly arranged at the top of the housing (1). The bottom of the display screen (2) is fixedly connected to the top of the housing (1). The display screen (2) is connected to the image analysis device through a circuit. A camera (10) is fixedly arranged at the center of the inner wall of the top of the housing (1). The camera (10) is connected to the image analysis device through a circuit. Support columns are fixedly connected to the four corners of the bottom of the housing (1). Two moving holes are formed in the bottom of the housing (1). A controller is fixedly connected to the inner wall of the bottom of the housing (1); a clamping mechanism which is arranged on the housing (1) and is used for clamping a PCB board; a rotating mechanism which is arranged on the housing (1) and is used for flipping the PCB board; a shielding mechanism which is arranged on the housing (1) and is used for shielding and protecting the camera (10).

2. The appearance detection device for an integrated circuit PCB board according to claim 1, characterized in that, The clamping mechanism includes a second motor (12), two connecting blocks (11), a bidirectional lead screw (6), two moving rods (5), two sliding rods (9), two annular grooves (8) and two clamping plates (4). The tops of the two connecting blocks (11) are respectively fixedly connected to the two sides of the bottom of the same housing (1). One side of the second motor (12) is fixedly connected to one side of the connecting block (11) through a bolt. The output shaft of the second motor (12) penetrates through one side of the connecting block (11) and is rotatably connected to the connecting block (11). The output shaft of the second motor (12) is fixedly connected to one end of the bidirectional lead screw (6). The two ends of the bidirectional lead screw (6) are respectively rotatably connected to the closer sides of the two connecting blocks (11). The two moving rods (5) are both threadedly sleeved on the same bidirectional lead screw (6). The tops of the two moving rods (5) respectively penetrate through the two moving holes and extend into the housing (1). The closer sides of the two moving rods (5) are both fixedly connected with sliding rods (9) shaped like a T. Ball bearings are rotatably connected to the two sliding rods (9). The two annular grooves (8) are respectively arranged on the farther sides of the two clamping plates (4) and are adapted to the two sliding rods (9). The two sliding rods (9) are respectively slidably connected to the two annular grooves (8).

3. An appearance detection device for an integrated circuit PCB board according to claim 1, characterized in that, The rotating mechanism includes two first motors (3), two rotating discs (13), two connecting columns (14), two moving columns (15), four sliding grooves (16) and four sliders (17). One sides of the two first motors (3) are respectively fixedly connected to both sides of the same frame (1) by bolts. Output shafts of the two first motors (3) respectively penetrate through both sides of the same frame (1) and are rotatably connected to the frame (1). Output shafts of the two first motors (3) are respectively fixedly connected to one sides of the two rotating discs (13) away from each other. One sides of the two rotating discs (13) away from each other are respectively slidably connected to inner walls of both sides of the same frame (1). One sides of the two rotating discs (13) close to each other are respectively fixedly connected to one ends of the two connecting columns (14) away from each other. Moving grooves are respectively formed at one ends of the two connecting columns (14) close to each other. The two moving columns (15) are respectively slidably connected to the two moving grooves. One sides of the four sliders (17) are respectively fixedly connected to tops and bottoms of the two moving columns (15). The four sliding grooves (16) are respectively arranged on inner walls of tops and bottoms of the two moving grooves. The four sliders (17) are respectively slidably connected to the four sliding grooves (16). One ends of the two moving columns (15) close to each other are respectively fixedly connected to one sides of the two clamping plates (4) away from each other.

4. An appearance detection device for an integrated circuit PCB board according to claim 1, characterized in that, The shielding mechanism includes an electric telescopic rod (21), a moving block (23) and a shielding plate (22). A fixed end of the electric telescopic rod (21) is fixedly connected to an inner wall of one side of the frame (1). A telescopic end of the electric telescopic rod (21) is fixedly connected to one side of the moving block (23). A bottom of the moving block (23) is fixedly connected to one side of the top of the shielding plate (22). The shielding plate (22) is located directly below the camera (10) and is in contact with the bottom of the camera (10).

5. An appearance detection device for an integrated circuit PCB board according to claim 4, characterized in that, Two positioning rods (20) are fixedly connected to inner walls of both sides of the frame (1). The two positioning rods (20) are respectively located in front of and behind the same camera (10). Two positioning holes adapted to the positioning rods (20) are formed in the moving block (23). The moving block (23) is slidably sleeved on the two positioning rods (20) through the positioning holes.

6. An appearance detection device for an integrated circuit PCB board according to claim 2, characterized in that, Soft pads (7) for reducing damage to the PCB board during clamping are respectively fixedly arranged on one sides of the two clamping plates (4) close to each other.

7. An appearance detection device for an integrated circuit PCB board according to claim 1, characterized in that, Two triangular blocks (18) are fixedly connected to an inner wall of the top of the frame (1). The two triangular blocks (18) are respectively located in front of and behind the camera (10). Lighting lamps (19) for illuminating the PCB board are respectively fixedly arranged on inclined surfaces of the two triangular blocks (18).

Images