Visual inspection equipment based on machine vision

Abstract

The utility model discloses visual inspection equipment based on machine vision, which comprises a conveying assembly, the conveying assembly comprises two supporting plates, the top end of one of the supporting plates is fixedly provided with a frame body, the frame body is fixedly provided with an installation plate, the installation plate is fixedly provided with a visual inspection main body, and the visual inspection main body is fixedly provided with a visual inspection main body. One side of the visual inspection main body is electrically connected with a data transmission line, a camera is fixedly mounted at the bottom end of the visual inspection main body, a light source assembly is arranged on the camera, and a rotating assembly is arranged between the light source assembly and the camera. An object is conveyed to a detection point below the visual detection main body through the conveying assembly and then detected through the visual detection main body, the visual detection main body is connected with an external computer through a data transmission line, and when the irradiation angle of a light source needs to be adjusted, the visual detection main body can be rotated through the rotating assembly; therefore, the irradiation angle of the light source is controlled, and detection requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of machine vision inspection technology, and in particular to a machine vision-based visual inspection device. Background Technology

[0002] Machine vision inspection is a technology that uses optical imaging systems and image processing techniques to automatically detect and identify objects. It acquires image information of target objects using industrial cameras, then combines this information with computer algorithms to analyze features such as size, shape, color, and defects, ultimately outputting inspection results or control signals. This system typically consists of a light source, lens, camera, image acquisition card, and vision processing software. It enables high-speed, high-precision non-contact measurement and is widely used in quality inspection, positioning guidance, and classification in industrial production. Compared to manual inspection, machine vision offers advantages such as high efficiency, strong stability, and adaptability to harsh environments, and has become a core technology for improving automation levels in industries such as electronics manufacturing, automotive parts, and food packaging.

[0003] Patent document CN222299113U discloses a visual inspection device including a mounting bracket, a camera, a light-blocking plate, and a light source assembly. The camera, light-blocking plate, and light source assembly are all mounted on the mounting bracket, with the camera facing downwards and the light-blocking plate positioned directly above the camera. In a top-view projection, two light source assemblies are located on opposite sides of the camera in the first horizontal direction. The visual inspection device also includes a camera mount and a vertically arranged linear component. The linear component is fixedly connected to the mounting bracket, and the camera mount is vertically adjustable and connected to the linear component. The camera is connected to the camera mount. The mounting bracket also includes a rotating connecting seat, on which the light source assembly is rotatably connected about an axis. This invention's visual inspection device has good adjustability, better versatility and adaptability, and improves visual recognition accuracy.

[0004] In the prior art of the aforementioned patent, the light source is positioned relative to the object and rotated and installed above the detection point. The light source illuminates the object from both sides, which can easily cause shadows to be generated on the other two sides of the object that are not illuminated. Secondly, some objects have special detection positions that require local lighting. For example, when detecting an object from top to bottom, if a certain part of the object is higher, it will block the detection position and generate shadows. If the method of illuminating from both sides is used, the detection effect of visual inspection may be poor. Utility Model Content

[0005] The purpose of this invention is to provide a vision inspection device based on machine vision to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a vision inspection device based on machine vision, comprising a transmission assembly, the transmission assembly comprising two support plates, one of which has a frame fixedly mounted on its top end, an mounting plate fixedly mounted on the frame, a vision inspection body fixedly mounted on the mounting plate, a data transmission line electrically connected to one side of the vision inspection body, a camera fixedly mounted on its bottom end, a light source assembly disposed on the camera, and a rotating assembly disposed between the light source assembly and the camera, the light source assembly being rotatably connected to the camera via the rotating assembly.

[0007] As a further description of the above technical solution: the rotating component includes a gear ring rotatably mounted on the camera, a connecting plate is fixedly mounted on one side of the visual detection body, a micro motor is fixedly mounted on the connecting plate, the output end of the micro motor is connected to a rotating shaft, a gear is fixedly mounted at the bottom end of the rotating shaft, the gear meshes with the gear ring, and the light source component is located below the gear ring.

[0008] As a further description of the above technical solution: a power supply is fixedly installed on the toothed ring, a connector is fixedly installed at the bottom end of the power supply, and an interface is opened at the bottom end of the connector.

[0009] As a further description of the above technical solution: a connecting ring is fixedly installed on the camera, and the connecting ring is located at the bottom end of the toothed ring and is rotatably connected to the toothed ring.

[0010] As a further description of the above technical solution: the light source assembly includes a first light source and a second light source, the second light source being a replaceable light source for the first light source, a lamp tube being fixedly installed at the top of the first light source, and threaded joints being rotatably provided at the top of both the lamp tube and the second light source, the two threaded joints being electrically connected to the lamp tube and the second light source respectively, and the two threaded joints being threadedly connected to an interface and electrically connected to a power supply through the interface.

[0011] As a further description of the above technical solution: the conveying assembly also includes two conveying rollers rotatably mounted between the support plates, a conveyor belt drivingly connecting the two conveying rollers, a first motor fixedly mounted on the side wall of one of the support plates, the output end of the first motor drivingly connected to one of the conveying rollers, and the first motor electrically connected to the vision inspection body.

[0012] This invention provides a vision inspection device based on machine vision. It offers the following advantages: An object is conveyed to a detection point below the vision inspection body via a conveying component, and then inspected by the vision inspection body. The vision inspection body is connected to an external computer via a data transmission line. When the illumination angle of the light source needs to be adjusted, it can be rotated by a rotating component to control the illumination angle, thereby meeting the inspection requirements.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a vision inspection device based on machine vision proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural schematic diagram of the detection component of this utility model;

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0019] Figure 5 A three-dimensional structural diagram of the replacement of the second light source in this utility model;

[0020] Figure 6 This is a three-dimensional exploded view of the power supply, connector, and second light source of this utility model.

[0021] Legend:

[0022] 1. Support plate; 2. Conveyor belt; 3. First motor; 4. Conveyor roller; 5. Frame; 6. Mounting plate; 7. Vision inspection body; 8. Data transmission line; 9. Camera; 10. Connecting plate; 11. Micro motor; 12. Rotating shaft; 13. Gear; 14. Gear ring; 15. Power supply; 16. Connector; 17. Threaded joint; 18. Overlapping ring; 19. Lamp tube; 20. First light source; 21. Interface; 22. Second light source. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1-6 A machine vision-based visual inspection device includes a conveying assembly. The conveying assembly includes two support plates 1. A frame 5 is fixedly mounted on the top of one of the support plates 1. An mounting plate 6 is fixedly mounted on the frame 5. A visual inspection body 7 is fixedly mounted on the mounting plate 6. A data transmission line 8 is electrically connected to one side of the visual inspection body 7. A camera 9 is fixedly mounted on the bottom of the visual inspection body 7. A light source assembly is provided on the camera 9. A rotating assembly is provided between the light source assembly and the camera 9, and the light source assembly is rotatably connected to the camera 9 through the rotating assembly. An object is conveyed to a detection point below the visual inspection body 7 via the conveying assembly, and then inspected by the visual inspection body 7. The visual inspection body 7 is connected to an external computer via the data transmission line 8. This technology is prior art and therefore will not be described in detail. When it is necessary to adjust the illumination angle of the light source, the rotating assembly can be used to rotate the light source, thereby controlling the illumination angle to meet the inspection requirements.

[0025] As a preferred embodiment, the rotating assembly includes a gear ring 14 rotatably mounted on the camera 9. A connecting plate 10 is fixedly mounted on one side of the visual detection body 7. A micro motor 11 is fixedly mounted on the connecting plate 10. The output end of the micro motor 11 is connected to a rotating shaft 12. A gear 13 is fixedly mounted on the bottom end of the rotating shaft 12. The gear 13 meshes with the gear ring 14. The light source assembly is located below the gear ring 14. The micro motor 11 can drive the rotating shaft 12 to rotate. The rotation of the rotating shaft 12 can drive the gear ring 14 to rotate through the gear 13. The rotation of the gear ring 14 can drive the light source assembly below the gear ring 14 to rotate.

[0026] As a preferred technical solution of this embodiment, a power supply 15 is fixedly installed on the toothed ring 14, and a connector 16 is fixedly installed at the bottom end of the power supply 15. An interface 21 is opened at the bottom end of the connector 16. The power supply 15 can supply power to the light source assembly, and the light source assembly can be connected through the interface 21.

[0027] As a preferred technical solution in this embodiment, a connecting ring 18 is fixedly installed on the camera 9. The connecting ring 18 is disposed at the bottom end of the toothed ring 14 and is rotatably connected to the toothed ring 14. The connecting ring 18 can limit the toothed ring 14 so that the toothed ring 14 can rotate stably.

[0028] As a preferred technical solution of this embodiment, the light source assembly includes a first light source 20 and a second light source 22. The second light source 22 is a replaceable light source for the first light source 20. A lamp tube 19 is fixedly installed at the top of the first light source 20. Both the lamp tube 19 and the top of the second light source 22 are rotatably provided with threaded connectors 17. The two threaded connectors 17 are electrically connected to the lamp tube 19 and the second light source 22, respectively. The two threaded connectors 17 are threadedly connected to the interface 21 and electrically connected to the power supply 15 through the interface 21. The first light source 20 is an adjustable light source. When it is not necessary to perform local illumination detection, the second light source 22 can be replaced. The second light source 22 is a conventional illumination method. The light source can be fixed at the interface 21 below the power supply 15 through the threaded connectors 17 and powered by the power supply 15.

[0029] As a preferred embodiment, the conveying assembly further includes two conveying rollers 4 rotatably mounted between the support plates 1, and a conveyor belt 2 is driven between the two conveying rollers 4. A first motor 3 is fixedly mounted on the side wall of one of the support plates 1, and the output end of the first motor 3 is drivenly connected to one of the conveying rollers 4. The first motor 3 is electrically connected to the vision inspection body 7. The first motor 3 can drive the conveying rollers 4 to rotate, thereby controlling the conveying of the conveyor belt 2. When the object moves to the bottom of the vision inspection body 7, the first motor 3 stops briefly, so that the object can be stably detected.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A machine vision based vision inspection apparatus comprising, characterized by, The system includes a transmission assembly comprising two support plates (1), one of which has a frame (5) fixedly mounted on its top end. A mounting plate (6) is fixedly mounted on the frame (5), and a visual inspection body (7) is fixedly mounted on the mounting plate (6). A data transmission line (8) is electrically connected to one side of the visual inspection body (7). A camera (9) is fixedly mounted on the bottom end of the visual inspection body (7). A light source assembly is provided on the camera (9), and a rotating assembly is provided between the light source assembly and the camera (9). The light source assembly is rotatably connected to the camera (9) through the rotating assembly.

2. The machine vision-based vision inspection apparatus according to claim 1, wherein The rotating assembly includes a gear ring (14) rotatably mounted on the camera (9). A connecting plate (10) is fixedly mounted on one side of the visual detection body (7). A micro motor (11) is fixedly mounted on the connecting plate (10). The output end of the micro motor (11) is connected to a rotating shaft (12). A gear (13) is fixedly mounted at the bottom end of the rotating shaft (12). The gear (13) meshes with the gear ring (14). The light source assembly is located below the gear ring (14).

3. The machine vision-based vision inspection apparatus according to claim 2, wherein, A power supply (15) is fixedly installed on the toothed ring (14), and a connector (16) is fixedly installed at the bottom end of the power supply (15). An interface (21) is opened at the bottom end of the connector (16).

4. The machine vision-based vision inspection apparatus according to claim 1, wherein A connecting ring (18) is fixedly installed on the camera (9). The connecting ring (18) is located at the bottom end of the toothed ring (14) and is rotatably connected to the toothed ring (14).

5. The machine vision-based vision inspection apparatus according to claim 1, wherein, The light source assembly includes a first light source (20) and a second light source (22). The second light source (22) is a replaceable light source for the first light source (20). A lamp tube (19) is fixedly installed at the top of the first light source (20). A threaded connector (17) is rotatably provided at the top of both the lamp tube (19) and the second light source (22). The two threaded connectors (17) are electrically connected to the lamp tube (19) and the second light source (22) respectively. The two threaded connectors (17) are threadedly connected to the interface (21) and electrically connected to the power supply (15) through the interface (21).

6. The machine vision-based vision inspection apparatus according to claim 1, wherein, The conveying assembly also includes two conveying rollers (4) rotatably mounted between the support plates (1), and a conveyor belt (2) is connected between the two conveying rollers (4). A first motor (3) is fixedly mounted on the side wall of one of the support plates (1). The output end of the first motor (3) is connected to one of the conveying rollers (4). The first motor (3) is electrically connected to the vision inspection body (7).

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