Automatic feeding mechanism for PCB testing

Abstract

The utility model discloses an automatic feeding mechanism for PCB (printed circuit board) testing, which relates to the technical field of PCB production testing equipment and comprises a rack, a laminate is arranged in the middle of the rack, a conveying belt main body is arranged at the upper end of the laminate, a mounting plate is fixed on the inner side of the rack and positioned above the tail end of the conveying belt main body, a strip-shaped hole is arranged on the mounting plate, and the strip-shaped hole is communicated with the conveying belt main body. A positioning assembly is installed at the strip-shaped hole, a sweeping assembly is installed in the rack and located above the conveying belt body, a dust suction assembly is arranged on one side of the sweeping assembly, a controller module is installed at the bottom of the rack, and a camera and a photoelectric sensor are installed on the lower end face of the installation plate. According to the utility model, dust is cleaned in real time through the cleaning assembly and the dust collection assembly, so that the test accuracy is ensured; the intelligent control system integrating the camera, the photoelectric sensor, the positioning assembly and the controller module can automatically feed and position PCBs, is high in universality and efficiency, reduces the labor cost, and guarantees production in an all-around mode.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board production and testing equipment, and in particular to an automatic feeding mechanism for PCB board testing. Background Technology

[0002] In the PCB manufacturing process, multiple performance tests are required to ensure product quality. Traditional feeding methods mostly rely on manual operation, with workers placing PCBs one by one onto the testing equipment. This method is not only inefficient but also prone to damage due to human factors, such as scratches and collisions, affecting product yield. Furthermore, with the trend towards miniaturization and precision in electronic products, the requirements for PCB testing accuracy are increasing. Manual feeding cannot meet the demands of high-precision and high-efficiency production. Therefore, an automatic feeding mechanism for PCB testing is provided. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an automatic feeding mechanism for PCB board testing. It ensures accurate testing by using a cleaning component and a dust collection component to clean dust in real time. The intelligent control system, which integrates a camera, photoelectric sensor, positioning component, and controller module, can automatically feed and position PCB boards. It is highly versatile, efficient, reduces labor costs, and comprehensively ensures production, thus overcoming the deficiencies of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic feeding mechanism for PCB board testing includes a frame, a shelf in the middle of the frame, a conveyor belt body at the upper end of the shelf, a mounting plate fixed on the inner side of the frame above the end of the conveyor belt body, a slotted hole on the mounting plate, a positioning component installed at the slotted hole, a cleaning component installed inside the frame above the conveyor belt body, a dust suction component on one side of the cleaning component, a controller module installed at the bottom of the frame, and a camera and a photoelectric sensor installed on the lower surface of the mounting plate.

[0006] As a further embodiment of this utility model: the positioning component includes a first servo motor and a bearing seat fixed on the upper end of the mounting plate. The output end of the first servo motor is connected to a bidirectional screw. One end of the bidirectional screw is rotatably connected to the bearing seat through a bearing. Both ends of the bidirectional screw are screwed with L-shaped clamps. The top of the vertical ends of the two L-shaped clamps are slidably engaged with the strip holes. The first servo motor is electrically connected to the controller module.

[0007] As a further improvement of this utility model: springs are provided on opposite sides of the horizontal sections of the two L-shaped clamping rods, and one end of each spring on the two L-shaped clamping rods is connected to a clamping plate.

[0008] As a further improvement of this utility model, the surface of the conveyor belt body is provided with placement grooves at equal intervals.

[0009] As a further embodiment of this utility model: the cleaning assembly includes a U-shaped plate installed on the inner wall of the top of the frame, a brush roller is rotatably installed between the bottom of the vertical sections on both sides of the U-shaped plate via bearings, a second servo motor is installed on the outer wall of one side of the U-shaped plate, the output end of the second servo motor is connected to one end of the brush roller, and the second servo motor and the controller module are electrically connected.

[0010] As a further embodiment of this utility model: the vacuuming assembly includes a vacuum cleaner body fixed to one side of the top of the frame, the vacuum cleaner body has a vacuuming pipe connected to the vacuuming end, the lower end of the vacuuming pipe extends into the interior of the frame and is connected to a vacuum nozzle, and the vacuum nozzle is located on one side of the brush roller.

[0011] As a further improvement of this utility model: the controller module integrates an image processing module and a display module, and the camera and photoelectric sensor are electrically connected to the controller module.

[0012] The beneficial effects of this utility model are as follows:

[0013] Real-time dust removal via sweeping and vacuuming components ensures accurate testing; the intelligent control system, integrating cameras, photoelectric sensors, positioning components, and controller modules, can automatically feed and position PCB boards, offering high versatility and efficiency, reducing labor costs, and comprehensively ensuring production. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of an automatic feeding mechanism for PCB board testing proposed in this utility model.

[0015] Figure 2 This is a second-view three-dimensional structural diagram of an automatic feeding mechanism for PCB board testing proposed in this utility model.

[0016] Figure 3 This is a third-view perspective three-dimensional structural diagram of an automatic feeding mechanism for PCB board testing proposed in this utility model.

[0017] Figure 4 This utility model proposes an automatic feeding mechanism for PCB board testing. Figure 1 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Frame; 2. Vacuum cleaner body; 3. Placement slot; 4. Shelf; 5. Slotted hole; 6. Conveyor belt body; 7. First servo motor; 8. Bidirectional screw; 9. U-shaped plate; 10. Second servo motor; 11. Brush roller; 12. Controller module; 13. Mounting plate; 14. Camera; 15. Photoelectric sensor; 16. Vacuum suction pipe; 17. Vacuum nozzle; 18. L-shaped clamp; 19. Spring; 20. Clamping plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1, referring to Figure 1-4 An automatic feeding mechanism for PCB board testing includes a frame 1, a shelf 4 in the middle of the frame 1, a conveyor belt body 6 at the upper end of the shelf 4, a mounting plate 13 fixed on the inner side of the frame 1 above the end of the conveyor belt body 6, a slotted hole 5 on the mounting plate 13, a positioning component installed at the slotted hole 5, a cleaning component installed inside the frame 1 above the conveyor belt body 6, a dust suction component on one side of the cleaning component, a controller module 12 installed at the bottom of the frame 1, and a camera 14 and a photoelectric sensor 15 installed on the lower end face of the mounting plate 13. The photoelectric sensor 15 is used to detect whether the PCB board has reached the designated position.

[0021] The positioning assembly includes a first servo motor 7 and a bearing housing fixed on the upper end of the mounting plate 13. The output end of the first servo motor 7 is connected to a bidirectional screw 8. One end of the bidirectional screw 8 is rotatably connected to the bearing housing through a bearing. Both ends of the bidirectional screw 8 are screwed with L-shaped clamps 18. The top of the vertical ends of the two L-shaped clamps 18 are slidably engaged with the strip hole 5. The first servo motor 7 is electrically connected to the controller module 12.

[0022] Springs 19 are provided on opposite sides of the horizontal sections of the two L-shaped clamping rods 18. One end of each spring 19 on the two L-shaped clamping rods 18 is connected to a clamping plate 20. The springs 19 provide elastic support to the clamping plate 20 to prevent excessive clamping force from causing hard clamping of the PCB board and resulting in damage to the PCB board.

[0023] The surface of the conveyor belt body 6 is provided with placement grooves 3 at equal intervals, which facilitates the positioning of the PCB board and prevents the PCB board from moving too much and making it difficult to position.

[0024] The cleaning assembly includes a U-shaped plate 9 installed on the inner wall of the top of the frame 1. A brush roller 11 is rotatably mounted between the bottom of the vertical sections on both sides of the U-shaped plate 9 via a bearing. A second servo motor 10 is installed on the outer wall of one side of the U-shaped plate 9. The output end of the second servo motor 10 is connected to one end of the brush roller 11. The second servo motor 10 is electrically connected to the controller module 12.

[0025] The controller module 12 integrates an image processing module and a display module. The camera 14 and the photoelectric sensor 15 are both electrically connected to the controller module 12. The camera 14 captures images of the PCB board, and the image recognition algorithm accurately identifies various defects such as missing components, short circuits, open circuits, and poor soldering. This timely detection of quality problems in the production process helps to improve product quality and production efficiency and reduce the defect rate.

[0026] Workers place the PCB board to be tested in the placement slot 3 of the conveyor belt body 6. The second servo motor 10 drives the brush roller 11 to rotate. As the conveyor belt body 6 transports the PCB board, it passes over the brush roller 11, and the surface of the PCB board is cleaned. When the PCB board is transported to the end, the photoelectric sensor 15 detects the signal and transmits it to the controller module 12. The controller module 12 controls the conveyor belt body 6 to stop and controls the first servo motor 7 to work. The first servo motor 7 drives the bidirectional screw 8 to rotate, causing the two L-shaped clamping rods 18 to move towards each other. The PCB board is precisely positioned by clamping it with two clamping plates 20, and then the testing operation can be performed. The whole process is completed automatically, which is efficient and accurate, greatly improving the production efficiency and product quality of PCB board testing.

[0027] Example 2 is an optimization based on Example 1. Specifically, the vacuuming assembly includes a vacuum cleaner body 2 fixed to one side of the top of the frame 1. The vacuum cleaner body 2 is connected to a vacuum pipe 16 at the vacuuming end. The lower end of the vacuum pipe 16 extends into the interior of the frame 1 and is connected to a vacuum nozzle 17. The vacuum nozzle 17 is located on one side of the brush roller 11.

[0028] The dust generated by the brush roller 11 cleaning the PCB board surface is sucked in by the suction nozzle 17, which prevents the dust from spreading everywhere and causing pollution to the surrounding environment.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An automatic feeding mechanism for PCB board testing, comprising a frame (1), characterized in that, A shelf (4) is provided in the middle of the frame (1), and a conveyor belt body (6) is provided at the upper end of the shelf (4). An installation plate (13) is fixed on the inner side of the frame (1) and above the end of the conveyor belt body (6). A strip hole (5) is provided on the installation plate (13). A positioning component is installed at the strip hole (5). A cleaning component is installed inside the frame (1) and above the conveyor belt body (6). A dust suction component is provided on one side of the cleaning component. A controller module (12) is installed at the bottom of the frame (1). A camera (14) and a photoelectric sensor (15) are installed on the lower end face of the installation plate (13).

2. The automatic feeding mechanism for PCB board testing according to claim 1, characterized in that, The positioning component includes a first servo motor (7) and a bearing seat fixed on the upper end of the mounting plate (13). The output end of the first servo motor (7) is connected to a bidirectional screw (8). One end of the bidirectional screw (8) is rotatably connected to the bearing seat through a bearing. Both ends of the bidirectional screw (8) are screwed with L-shaped clamps (18). The top of the vertical ends of the two L-shaped clamps (18) are slidably engaged with the strip hole (5). The first servo motor (7) is electrically connected to the controller module (12).

3. The automatic feeding mechanism for PCB board testing according to claim 2, characterized in that, Springs (19) are provided on opposite sides of the horizontal sections of the two L-shaped clamps (18), and one end of the springs (19) on the two L-shaped clamps (18) is connected to a clamp plate (20).

4. The automatic feeding mechanism for PCB board testing according to claim 3, characterized in that, The surface of the conveyor belt body (6) is provided with placement grooves (3) at equal intervals.

5. The automatic feeding mechanism for PCB board testing according to claim 1, characterized in that, The cleaning assembly includes a U-shaped plate (9) installed on the inner wall of the top of the frame (1). A brush roller (11) is rotatably installed between the bottom of the vertical sections on both sides of the U-shaped plate (9) via a bearing. A second servo motor (10) is installed on the outer wall of one side of the U-shaped plate (9). The output end of the second servo motor (10) is connected to one end of the brush roller (11). The second servo motor (10) and the controller module (12) are electrically connected.

6. The automatic feeding mechanism for PCB board testing according to claim 5, characterized in that, The vacuuming assembly includes a vacuum cleaner body (2) fixed to one side of the top of the frame (1). The vacuum cleaner body (2) is connected to a vacuum pipe (16) at the vacuuming end. The lower end of the vacuum pipe (16) extends into the interior of the frame (1) and is connected to a vacuum nozzle (17). The vacuum nozzle (17) is located on one side of the brush roller (11).

7. The automatic feeding mechanism for PCB board testing according to claim 1, characterized in that, The controller module (12) integrates an image processing module and a display module. The camera (14) and the photoelectric sensor (15) are both electrically connected to the controller module (12).

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