An optical inspection device for PCBA components

Abstract

This utility model discloses an optical inspection device for PCBA components, relating to the field of component inspection technology. It includes a main body, a dust chamber, a first guide rail, and a second guide rail. The first guide rail is fixedly connected to the top of the main body, and a first servo motor is fixedly installed at the rear end of the first guide rail. A first threaded rod is fixedly connected to the power output end of the first servo motor, and a first slider is threaded onto the first threaded rod. A second guide rail is fixedly connected to the lower end of the first slider. A second servo motor is fixedly installed on the right side of the second guide rail, and a second threaded rod is fixedly connected to the power output end of the second servo motor. Before inspection, an electrostatic dust removal device is used to remove dust from the camera lens and the PCBA components, reducing dust interference with imaging and ensuring clear image information. The camera can be precisely adjusted in position via the first and second servo motors to ensure clear imaging of all parts of the PCBA components. Combined with image processing system comparative analysis, the accuracy of the inspection is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of component inspection technology, specifically a PCBA component optical inspection device. Background Technology

[0002] In the field of electronics manufacturing, PCBA (Printed Circuit Board Assembly) is one of the core components of electronic products, and its quality directly affects the performance and reliability of electronic products. In the PCBA assembly process, the correct installation and soldering of components are crucial.

[0003] Traditional PCBA component inspection relies heavily on manual visual inspection or simple optical-assisted inspection. Manual visual inspection is inefficient and susceptible to subjective factors and visual fatigue of the inspectors, making it difficult to guarantee accuracy and consistency, and prone to missed or false detections. While simple optical-assisted inspection equipment improves efficiency to some extent, its functionality is limited, it cannot effectively address interference from environmental factors such as dust, and the camera position is inconvenient to adjust, making it difficult to meet the precise inspection needs of different PCBA component sizes. Furthermore, as electronic products develop towards miniaturization, multi-functionality, and high performance, the integration level of PCBAs is constantly increasing, component density is rising, and the precision requirements for component insertion and soldering are also becoming increasingly stringent. Simultaneously, the market is demanding higher standards for production efficiency and quality control of electronic products, and traditional inspection methods can no longer meet the industry's needs. Therefore, those skilled in the art provide a PCBA component optical inspection device to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to provide an optical inspection device for PCBA components to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An optical inspection device for PCBA components includes a main body, a dust box, a first guide rail, and a second guide rail. The first guide rail is fixedly connected to the top of the main body. A first servo motor is fixedly installed at the rear end of the first guide rail. A first threaded rod is fixedly connected to the power output end of the first servo motor. The first threaded rod is rotatably connected to the first guide rail. A first slider is threadedly connected to the first threaded rod. A second guide rail is fixedly connected to the lower end of the first slider. A second servo motor is fixedly installed on the right side of the second guide rail. A second threaded rod is fixedly connected to the power output end of the second servo motor. The second threaded rod is rotatably connected to the second guide rail. A second slider is threadedly connected to the second threaded rod. A camera is fixedly installed at the lower end of the second slider.

[0007] As a further embodiment of this utility model: a robotic arm is fixedly installed on the left side of the second guide rail, and an electrostatic dust removal device is fixedly installed at the front end of the robotic arm.

[0008] As a further improvement of this utility model: a dust box is provided below the robotic arm, and a controller is fixedly installed on the left side of the main body of the equipment.

[0009] As a further embodiment of this utility model: a first sliding groove is provided on the lower side of the first guide rail, wherein the first slider is engaged in the first sliding groove; a second sliding groove is provided on the lower side of the second guide rail, wherein the second slider is engaged in the second sliding groove.

[0010] As a further improvement of this utility model: two support rods are fixedly connected to the lower side of the second guide rail, and ball bearings are movably connected to the lower end of each support rod. Two rolling grooves are opened at the bottom of the main body of the equipment, in which the ball bearings roll in the rolling grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. High detection accuracy: Before detection, the camera lens and PCBA components are cleaned by an electrostatic dust removal device to reduce dust interference with imaging and ensure clear image information. At the same time, the camera can be precisely adjusted in position by the first and second servo motors to ensure clear imaging of all parts of the PCBA components. Combined with the image processing system for comparative analysis, the detection accuracy is effectively improved.

[0013] 2. High degree of automation: From dust removal to camera position adjustment, and then to image capture and analysis, the entire detection process can be completed automatically by issuing instructions through the controller, reducing manual operation links, which not only improves detection efficiency, but also reduces errors and mistakes caused by human factors.

[0014] 3. Reasonable structural design: The design of the first and second guide rails, together with the slider, slide groove and threaded rod, allows the camera to move flexibly in the horizontal and vertical directions; the cooperation between the support rod and ball under the second guide rail and the rolling groove at the bottom of the equipment body makes the second guide rail move more smoothly. The overall structure is compact and stable, which facilitates the operation and maintenance of the equipment.

[0015] 4. Versatile Functions: In addition to optical inspection, it also integrates dust removal, which can clean key parts before and after inspection, improving inspection quality. Furthermore, the equipment can flexibly adjust the camera position according to the inspection requirements of different PCBA components, making it more widely applicable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a PCBA plug-in optical inspection device.

[0017] Figure 2 This is a schematic diagram of the structure of the first guide rail and the second guide rail in a PCBA plug-in optical inspection device.

[0018] Figure 3 This is a schematic diagram of the structure of the first servo motor and the first threaded rod in a PCBA plug-in optical inspection device.

[0019] Figure 4 This is a schematic diagram of the structure of the second servo motor and the second threaded rod in a PCBA plug-in optical inspection device.

[0020] In the diagram: 1. Main body of the equipment; 2. Dust bin; 3. Controller; 4. Rolling groove; 5. First guide rail; 501. First slide groove; 502. First slider; 6. First servo motor; 601. First threaded rod; 7. Second guide rail; 701. Second slide groove; 702. Second slider; 8. Second servo motor; 801. Second threaded rod; 9. Camera; 10. Robotic arm; 11. Electrostatic dust removal device; 12. Support rod; 13. Ball bearing. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-4In this embodiment of the present invention, a PCBA component optical inspection device includes a device body 1, a dust box 2, a first guide rail 5, and a second guide rail 7. The top of the device body 1 is fixedly connected to the first guide rail 5, and a first servo motor 6 is fixedly installed at the rear end of the first guide rail 5. A first threaded rod 601 is fixedly connected to the power output end of the first servo motor 6, wherein the first threaded rod 601 is rotatably connected to the first guide rail 5, and a first slider 502 is threadedly connected to the first threaded rod 601. The lower end of the first slider 502 is fixedly connected to the second guide rail 7, and a second servo motor 8 is fixedly installed on the right side of the second guide rail 7. The power output end of the second servo motor 8 is fixedly connected to the second threaded rod 801, wherein the second threaded rod 801 is rotatably connected to the second guide rail 7. A second slider 702 is threaded onto the upper part of the device 1. A camera 9 is fixedly installed at the lower end of the second slider 702. A robotic arm 10 is fixedly installed on the left side of the second guide rail 7. An electrostatic dust removal device 11 is fixedly installed at the front end of the robotic arm 10. A dust box 2 is set below the robotic arm 10. A controller 3 is fixedly installed on the left side of the device body 1. A first slide groove 501 is opened on the lower side of the first guide rail 5, in which the first slider 502 is locked in the first slide groove 501. A second slide groove 701 is opened on the lower side of the second guide rail 7, in which the second slider 702 is locked in the second slide groove 701. Two left and right support rods 12 are fixedly connected to the lower side of the second guide rail 7. A ball bearing 13 is movably connected to the lower end of each support rod 12. Two left and right rolling grooves 4 are opened at the bottom of the device body 1, in which the ball bearing 13 rolls in the rolling grooves 4.

[0023] The working principle of this utility model is as follows: First, the operator places the PCBA component to be tested in a suitable position on the equipment and sends a command through the controller 3 on the left side of the main body 1 to control the movement of the robotic arm 10. The robotic arm 10, according to the command, moves the electrostatic dust removal device 11 at its front end. First, the electrostatic dust removal device 11 is moved below the camera 9, using the principle of electrostatic adsorption to clean the dust on the lens surface of the camera 9. After cleaning, the robotic arm 10 moves the electrostatic dust removal device 11 above the dust box 2, allowing the adsorbed dust to fall into the dust box 2 due to gravity. This completes the cleaning of the camera 9, ensuring clear image capture. Then, the controller 3 again controls the robotic arm 10 to move the electrostatic dust removal device 11 near the PCBA component. The electrostatic dust removal device 11 is activated, adsorbing dust and impurities from the surface of the PCBA component, reducing the interference of dust on the test results. After dust removal, the robotic arm 10 moves the electrostatic dust removal device 11 above the dust box 2, allowing the dust to fall into it. Then, according to the testing requirements of the PCBA component, the controller 3 activates... The first servo motor 6 at the rear end of the first guide rail 5 rotates, driving the first threaded rod 601 at the power output end to rotate. Since the first threaded rod 601 is threadedly connected to the first slider 502, and the first slider 502 is locked in the first groove 501 on the lower side of the first guide rail 5, the first slider 502 moves back and forth along the first threaded rod 601 and the first groove 501 under the action of threaded transmission. Since the second guide rail 7 is fixed at the lower end of the first slider 502, the second guide rail 7 and the camera 9 mounted on it also move back and forth, realizing the adjustment of the horizontal position of the camera 9. Then, after the horizontal position is adjusted, if the vertical position of the camera 9 still needs to be adjusted, the second servo motor 8 on the right side of the second guide rail 7 is started by the controller 3. The second servo motor 8 drives the second threaded rod 801 to rotate. Since the second threaded rod 801 is threadedly connected to the second slider 702, and the second slider 702 is locked in the second groove 701 on the lower side of the second guide rail 7, the second slider 702 moves left and right along the second threaded rod 801 and the second groove 701 under the action of threaded transmission. The camera 9 is fixed to the lower end of the second slider 702, thereby realizing the adjustment of the vertical position of the camera 9. With the cooperation of the support rod 12 and ball bearing 13 on the lower side of the second guide rail 7 and the rolling groove 4 at the bottom of the main body 1, the second guide rail 7 can move more smoothly. Finally, after the position of the camera 9 is adjusted, the camera 9 is turned on and uses the optical imaging principle to take pictures of the PCBA plug-in to obtain image information. The image information is transmitted to the image processing system inside the equipment and compared with the preset standard image or parameters to determine whether the plug-in position and soldering quality of the components on the PCBA plug-in meet the requirements, thus completing the inspection work.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PCBA component optical inspection device, comprising a main body (1), a dust box (2), a first guide rail (5), and a second guide rail (7), characterized in that, The top of the main body (1) of the device is fixedly connected to a first guide rail (5), the rear end of the first guide rail (5) is fixedly installed with a first servo motor (6), the power output end of the first servo motor (6) is fixedly connected with a first threaded rod (601), the first threaded rod (601) is threadedly connected with a first slider (502), the lower end of the first slider (502) is fixedly connected with a second guide rail (7), the right side of the second guide rail (7) is fixedly installed with a second servo motor (8), the power output end of the second servo motor (8) is fixedly connected with a second threaded rod (801), the second threaded rod (801) is threadedly connected with a second slider (702), the lower end of the second slider (702) is fixedly installed with a camera (9), the left side of the second guide rail (7) is fixedly installed with a robotic arm (10), and the front end of the robotic arm (10) is fixedly installed with an electrostatic dust removal device (11).

2. The PCBA component optical inspection device according to claim 1, characterized in that, The first threaded rod (601) is rotatably connected to the first guide rail (5), and the second threaded rod (801) is rotatably connected to the second guide rail (7).

3. The PCBA component optical inspection device according to claim 1, characterized in that, A dust box (2) is provided below the robotic arm (10), and a controller (3) is fixedly installed on the left side of the main body of the equipment (1).

4. The PCBA component optical inspection device according to claim 1, characterized in that, The first guide rail (5) has a first groove (501) on its lower side, wherein the first slider (502) is engaged in the first groove (501).

5. The PCBA component optical inspection device according to claim 1, characterized in that, The second guide rail (7) has a second groove (701) on its lower side, wherein the second slider (702) is engaged in the second groove (701).

6. The PCBA component optical inspection device according to claim 1, characterized in that, The second guide rail (7) is fixedly connected to two support rods (12) on the lower side, and the lower end of each support rod (12) is movably connected to a ball bearing (13).

7. The PCBA component optical inspection device according to claim 1, characterized in that, The bottom of the main body (1) of the device is provided with two rolling grooves (4) on the left and right, in which the ball (13) rolls in the rolling groove (4).

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