PCB (Printed Circuit Board) surface defect detection device with board turning function
By designing an automated flip-board inspection device for PCB boards, the problem of manual flipping required for double-sided board inspection was solved, achieving efficient and accurate double-sided inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAIPING ELEC & ELTEK NO 5 CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-05
AI Technical Summary
Existing PCB board inspection equipment requires manual flipping when inspecting double-sided boards, resulting in low inspection efficiency and easy introduction of errors.
Design a PCB board surface defect detection device with flipping function. The device uses a fixed motor to realize automated flipping and integrates clamping, flipping and dust removal functions to achieve the detection process.
This technology enables double-sided PCB board inspection to be completed in one process, improving inspection efficiency and reducing operational difficulty and errors.
Smart Images
Figure CN224203079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a PCB board surface defect detection device with a flip-plate function. Background Technology
[0002] A PCB, or printed circuit board, is an indispensable core component in modern electronic devices. Through the organic combination of conductive paths and an insulating substrate, it provides electrical connections and mechanical support for electronic components. During the production process, to ensure the PCB surface is free of defects, comprehensive inspection equipment is typically used.
[0003] Currently, testing equipment on the market is mainly divided into two types: single-board testing equipment and continuous testing equipment, each with its own advantages and disadvantages. Single-board testing equipment requires the PCB board to be tested to be fixed in a special fixture and passed through a scanning camera at a constant speed. The scanned image is then displayed on a monitor for operator analysis and judgment. It is worth noting that PCB boards can be divided into single-sided and double-sided types based on their structure. When testing double-sided boards, it is usually necessary to scan one side first, then manually flip and re-fix it before testing the other side. This process is cumbersome, reducing testing efficiency and potentially introducing errors due to human error.
[0004] Therefore, given the above problems, there is an urgent need to propose a PCB board surface defect detection device with automatic flipping function to improve detection efficiency and accuracy. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a PCB board surface defect detection device with a flip-board function.
[0006] A PCB board surface defect detection device with a flip-up function includes a worktable, a digital display screen, a mounting frame, a vision camera, a rodless cylinder, a fixed-position motor, a mounting base, a rotating shaft, a mounting plate, limiting components, and a limiting plate. The worktable has a digital display screen on one side and three mounting frames arranged in a row. At least two vision cameras are mounted on the middle mounting frame and are electrically connected to the digital display screen. A rodless cylinder is mounted on each side of the top of the worktable, and a support frame is positioned between the sliders of the two rodless cylinders. Both ends of the support frame are upward-extending extensions. A fixed-position motor and a mounting base are mounted on the top of each extension. A rotating shaft rotates on each mounting base and is connected to the output end of the fixed-position motor on the same side. A mounting plate is mounted on the other end of each rotating shaft. Each mounting plate has a set of limiting components for supporting the position of the PCB board to be inspected. Limiting plates are also mounted on both sides of the mounting plate.
[0007] To further explain, the limiting component includes a support plate and an elastic element. Support plates with vertical spacing are slidably provided on the mounting plate, and an elastic element is provided between the support plate and the corresponding mounting plate.
[0008] To further explain, it also includes inclined plates and pressing rods. Inclined plates are provided on the end of the support plate facing the corresponding fixed motor. Pressing rods are symmetrically arranged on the front top of the worktable, which are in contact with the inclined plates on the same side and are used to push open the support plates on the corresponding sides.
[0009] To further explain, it also includes a dust hood, a vacuum cleaner, and connecting pipes. In addition, dust hoods are installed on both sides of the mounting bracket, and a vacuum cleaner is installed on each side of the central mounting bracket. Connecting pipes are symmetrically connected to the air inlets of the vacuum cleaners, and the two connecting pipes on the same side are connected to one of their respective dust hoods.
[0010] To further explain, it also includes a searchlight, and a searchlight is also installed on the central mounting frame.
[0011] To further explain, it also includes U-shaped frames. U-shaped frames are symmetrically arranged on the mounting brackets equipped with dust collection hoods. The U-shaped frames are used to place adjacent connecting pipes.
[0012] The beneficial effects of this utility model are as follows: 1. This utility model uses an automated flip-plate design and a fixed-position motor to enable the inspection of both sides of a double-sided PCB board to be completed in one process without the need for manual flipping and re-fixing, which greatly saves time and improves inspection efficiency.
[0013] 2. This utility model integrates automated clamping, flipping, dust removal and image acquisition functions, which simplifies the operation steps and reduces the difficulty of operation. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the workbench, digital display screen, and mounting bracket of this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the extrusion rod, the fixed motor, and the mounting base of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the elastic element, inclined plate, and support plate of this utility model.
[0018] Figure 5 This is a three-dimensional structural diagram of the dust cover, vacuum cleaner, and connecting pipe components of this utility model.
[0019] The markings in the attached diagram are as follows: 1: Workbench, 2: Digital display screen, 3: Mounting bracket, 4: Vision camera, 5: Rodless cylinder, 6: Extrusion rod, 7: Fixed motor, 8: Mounting base, 9: Rotating shaft, 10: Mounting plate, 11: Support plate, 12: Elastic element, 13: Inclined plate, 14: Limiting plate, 15: Dust hood, 16: Vacuum cleaner, 17: Connecting pipe, 18: Spotlight, 19: U-shaped frame. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Example: A PCB board surface defect detection device with a flip-up function, such as... Figures 1-4 As shown, the system includes a workbench 1, a digital display screen 2, mounting brackets 3, vision cameras 4, a rodless cylinder 5, a stationary motor 7, a mounting base 8, a rotating shaft 9, a mounting plate 10, and limiting components and limiting plates 14. The workbench 1 has a digital display screen 2 located on the front right side, and three mounting brackets 3 arranged side-by-side at the top. Three vision cameras 4 are mounted on the middle mounting bracket 3. The vision cameras 4 are electrically connected to the digital display screen 2. The vision cameras 4 are used to capture images of the PCB board surface for inspection, and then transmit the signals to the digital display screen 2 for projection of the captured images. This allows for analysis by the staff, ensuring a more comprehensive and detailed inspection of potential defects, thereby improving inspection efficiency. The speed and accuracy of the measurement are measured, and a rodless cylinder 5 is set on the left and right sides of the top of the workbench 1. A support frame is fixed between the sliders of the rodless cylinders 5 on both sides, thereby driving the support frame to move back and forth. The left and right ends of the support frame are upward extension ends. A fixed motor 7 and a mounting seat 8 are installed on the top of the extension ends on both sides. A rotating shaft 9 is rotatably mounted on the mounting seat 8 on both sides. The rotating shaft 9 is connected to the output end of the fixed motor 7 on the same side. A mounting plate 10 is set on the other end of the rotating shaft 9 on both sides. A set of limiting parts for supporting the position of the PCB board to be tested is set on the mounting plate 10. Limiting plates 14 are also fixedly set on the front and rear sides of the mounting plate 10.
[0022] To achieve the flip-type inspection action, the PCB board is first initially positioned using a frame consisting of mounting plate 10 and limiting plate 14, and then the PCB board's position is further stabilized using limiting components. Next, the entire structure is moved by rodless cylinder 5, and preliminary surface defect inspection is completed in conjunction with vision camera 4 and digital display screen 2. Finally, the fixed-position motor 7 enables the entire device to flip the PCB board, achieving comprehensive double-sided inspection, reducing manual intervention while ensuring inspection accuracy.
[0023] like Figure 4As shown, the limiting member includes a support plate 11 and an elastic member 12. The support plates 11 are slidably passed through the mounting plate 10 with vertical spacing. An elastic member 12 is provided between the support plate 11 and the corresponding mounting plate 10. In this embodiment, the elastic member 12 is a spring, which can provide the necessary elastic force for the reset of the support plate 11.
[0024] like Figure 3 and 4 As shown, it also includes inclined plates 13 and pressing rods 6. Inclined plates 13 are provided on the end of the support plate 11 facing the corresponding fixed motor 7. The inclined plates 13 are inclined towards the mounting plate 10 on the same side. The top front of the worktable 1 is symmetrically provided with pressing rods 6 that contact and cooperate with the inclined plates 13 on the same side. They are used to push open the support plates 11 on the corresponding sides. The automatic opening of the support plates 11 is realized by mechanical triggering, which simplifies the operation process.
[0025] like Figure 5 As shown, it also includes a dust hood 15, a vacuum cleaner 16, and a connecting pipe 17. In addition, dust hoods 15 are installed on the front and rear mounting brackets 3. A vacuum cleaner 16 is installed on the left and right sides of the middle mounting bracket 3. The air inlet of the vacuum cleaner 16 is symmetrically connected to the front and rear of the vacuum cleaner 16. The two connecting pipes 17 on the same side are connected to one of the dust hoods 15, which effectively removes dust and impurities generated during the detection process and prevents them from affecting image quality and detection accuracy.
[0026] like Figure 1 As shown, it also includes a searchlight 18, which is also installed on the central mounting bracket 3, to enhance lighting conditions and ensure clear images even in low light conditions.
[0027] like Figure 5 As shown, it also includes a U-shaped frame 19. The mounting bracket 3 equipped with the dust collection hood 15 is symmetrically provided with U-shaped frames 19. The U-shaped frames 19 are used to place the adjacent connecting pipes 17, organize and fix the position of the connecting pipes 17, and avoid them being messy and affecting the operation.
[0028] During use, firstly, push the support plates 11 on both sides of the mounting plate 10, causing the elastic element 12 to compress and deform accordingly. Then, place the PCB board to be inspected between the two mounting plates 10, ensuring that its four corners are placed on the corresponding limiting plates 14, while its two side edges are embedded between the support plates 11. After releasing the support plates 11, the elastic element 12 resets, causing the support plates 11 to spring back, thereby supporting and fixing the upper and lower sides of the PCB board, effectively stabilizing its position. Next, start the rodless cylinder 5, moving the support frame and the loaded PCB board forward until the PCB board is directly below the vision camera 4. At this time, simultaneously turn on the vision camera 4 and the vacuum cleaner 16. The vacuum cleaner 16 transmits suction power to the vacuum hood 15 through the connecting pipe 17 to remove dust from the surface of the PCB board, ensuring its cleanliness. Subsequently, the vision camera 4 captures and inspects the PCB board, transmitting the image to the digital display screen 2 for observation and analysis by the staff. Continue operating the rodless cylinder 5 to convey the PCB board that has completed single-sided inspection forward. Once it reaches the flipping station, start the stationary motor 7 to drive the rotating shaft 9 to rotate, thereby flipping the entire assembly and the fixed PCB board together. Then, move the PCB board back under the vision camera 4 and repeat the dust removal and inspection operations to achieve double-sided inspection. Finally, move the inspected PCB board to the position of the pressing rod 6, so that the pressing rod 6 contacts the inclined plate 13 on the same side, pushing the trays 11 connected on both sides to separate, releasing the clamping state, and the PCB board can be easily removed, completing the entire inspection process.
[0029] It should be understood that the above description is for illustrative purposes only and does not imply limitation of this utility model.
Claims
1. A PCB board surface defect detection device with a flip-board function, characterized in that: The system includes a workbench (1), a digital display screen (2), a mounting bracket (3), a vision camera (4), a rodless cylinder (5), a fixed-position motor (7), a mounting base (8), a rotating shaft (9), a mounting plate (10), a limiting component, and a limiting plate (14). The workbench (1) has a digital display screen (2) located on one side, and three mounting brackets (3) arranged in a specific layout. At least two vision cameras (4) are mounted on the middle mounting bracket (3). The vision cameras (4) are electrically connected to the digital display screen (2). A rodless cylinder (5) is located on each of the top two sides of the workbench (1). A support frame is provided between the sliders of the rodless cylinder (5). The two ends of the support frame are upward extensions. A fixed motor (7) and a mounting base (8) are installed on the top of the two extensions. A rotating shaft (9) is rotatably mounted on the mounting base (8) on both sides. The rotating shaft (9) is connected to the output end of the fixed motor (7) on the same side. A mounting plate (10) is provided on the other end of the rotating shaft (9) on both sides. A set of limiting members for supporting the position of the PCB board to be detected is provided on the mounting plate (10). Limiting plates (14) are also provided on both sides of the mounting plate (10).
2. A PCB board surface defect detection device with flip-board function according to claim 1, characterized in that: the limiting member includes a support plate (11) and an elastic member (12), and the support plate (11) with vertical spacing is slidably passed through the mounting plate (10), and the elastic member (12) is provided between the support plate (11) and the corresponding mounting plate (10).
3. The PCB board surface defect detection device with flip-board function according to claim 2, characterized in that: It also includes a sloping plate (13) and a pressing rod (6). The pallet (11) is provided with a sloping plate (13) on the end facing the corresponding fixed motor (7). The front top of the worktable (1) is symmetrically provided with pressing rods (6) that contact and cooperate with the sloping plate (13) on the same side, which are used to push open the pallets (11) on the corresponding sides.
4. The PCB board surface defect detection device with flip-board function according to claim 3, characterized in that: It also includes a dust cover (15), a vacuum cleaner (16) and a connecting pipe (17). In addition, dust covers (15) are provided on both sides of the mounting bracket (3). A vacuum cleaner (16) is installed on each side of the mounting bracket (3) in the middle. The air inlet of the vacuum cleaner (16) is symmetrically connected to the connecting pipe (17). The two connecting pipes (17) on the same side are respectively connected to one of the dust covers (15).
5. A PCB board surface defect detection device with a flip-board function according to claim 4, characterized in that: It also includes a searchlight (18), and the central mounting bracket (3) is also equipped with a searchlight (18).
6. A PCB board surface defect detection device with flip-board function according to claim 5, characterized in that: It also includes a U-shaped frame (19), and the mounting frame (3) on which the dust hood (15) is mounted is symmetrically provided with U-shaped frames (19), and the U-shaped frame (19) is used to place the adjacent connecting pipe (17).