Multi-camera detection module

Abstract

A multi-camera detection module comprises a hollow rotating table, a main camera is mounted above the hollow rotating table, a mounting plate is mounted below the hollow rotating table, through holes are correspondingly formed in the center of the hollow rotating table and the center of the mounting plate, a shooting head of the main camera directly faces the through holes, and a driving motor is mounted on the hollow rotating table; a plurality of mounting frames are uniformly mounted on the outer edge of the mounting plate, arc-shaped sliding rails are arranged on the side surfaces of the mounting frames, sliding frames are slidably connected to the outer surfaces of the arc-shaped sliding rails, side cameras are fixedly mounted on the outer side surfaces of the sliding frames, and the shooting route of each side camera and the shooting route of the main camera intersect at one point. The defects in the prior art are overcome, all-directional and multi-angle visual detection on the side face of the product can be guaranteed, and the comprehensiveness and precision of defect detection are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of physics, and more particularly to visual inspection technology, specifically a multi-camera inspection module. Background Technology

[0002] Visual inspection is a device that uses machines to measure and judge products instead of human eyes. Through machine vision, the captured target is converted into an image signal and transmitted to a dedicated image processing system to detect whether the product has defects.

[0003] Current visual inspection devices only use a single camera, a single light source, and a single fixed angle. In actual experimental inspections, it is often necessary to collect image information of objects with different sizes, materials, colors, and other characteristics. Cameras with different parameters produce varying image quality for these features. A single camera cannot guarantee that the images of these objects with different characteristics are clear enough to meet the inspection requirements, resulting in decreased inspection accuracy, increased missed detection and false detection rates, and consequently affecting product quality and manufacturing efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-camera inspection module that overcomes these limitations, effectively reduces equipment height, and ensures comprehensive, multi-angle visual inspection of the product's sides, thereby significantly improving the comprehensiveness and accuracy of defect detection.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-camera detection module includes a hollow rotating stage, a main camera mounted on top of the hollow rotating stage, and a mounting plate rotatably connected below the hollow rotating stage. The center of the hollow rotating stage and the mounting plate are respectively provided with through holes. The camera head of the main camera is directly opposite the through holes. A drive motor is mounted on the hollow rotating stage, and the drive end of the drive motor is connected to the mounting plate through a transmission component inside the hollow rotating stage.

[0007] Multiple mounting brackets are evenly installed on the outer edge of the mounting plate. Each mounting bracket is arranged in an arc shape, and the center points of the arcs intersect at a single point. An arc-shaped slide rail is provided on the side of the mounting bracket. A sliding frame is slidably connected to the outer surface of the arc-shaped slide rail. A side camera is fixedly installed on the outer side of each sliding frame. The shooting path of each side camera intersects the shooting path of the main camera at a single point.

[0008] Preferably, a lampshade is fixedly installed below the mounting plate.

[0009] Preferably, the lampshade has multiple slots evenly spaced on its side, and each slot corresponds to the shooting path of each side camera.

[0010] Preferably, the mounting bracket includes an arc-shaped plate and a fixing plate that are integrally formed, the fixing plate being fixedly installed at the outer edge of the mounting plate, and the arc-shaped plate being disposed below the fixing plate.

[0011] Preferably, the surface of the fixing plate is symmetrically provided with a plurality of strip-shaped holes, and the outer edge of the mounting plate is provided with threaded holes, the strip-shaped holes and the threaded holes corresponding to each other.

[0012] This invention provides a multi-camera inspection module. It offers the following advantages: the main camera 2 can directly visually inspect the product directly below through the through-hole in the center of the hollow rotating stage and mounting plate; and by setting four mounting brackets, the four side cameras can slide along the arc-shaped slide rails on the sides of the four mounting brackets. Furthermore, a drive motor is installed on the hollow rotating stage. By controlling the operation of the drive motor, the entire mounting plate is rotated via the hollow rotating stage, which in turn causes each side camera to rotate horizontally. This allows each side camera to move in both horizontal and vertical directions, ensuring comprehensive and multi-angle visual inspection of the product's sides, effectively improving the comprehensiveness and accuracy of defect detection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this invention or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.

[0014] Figure 1 A schematic diagram of the structure of this invention;

[0015] Figure 2 Schematic diagram of the cross-sectional structure of the present invention;

[0016] Figure 3 A schematic diagram of the installation structure of the hollow rotary table and mounting plate in this invention;

[0017] Figure 4 A schematic diagram of the mounting structure of the mounting bracket and the side camera in this invention;

[0018] Explanation of the labels in the diagram:

[0019] 1. Hollow rotary table; 2. Main camera; 3. Drive motor; 4. Mounting plate; 5. Mounting bracket; 6. Arc-shaped slide rail; 7. Sliding bracket; 8. Side camera; 9. Lamp cover; 10. Groove; 51. Arc-shaped plate; 52. Fixing plate; 53. Strip hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Example 1, as Figures 1 to 4 As shown, a multi-camera detection module includes a hollow rotating stage 1, a main camera 2 mounted on top of the hollow rotating stage 1, and a mounting plate 4 rotatably connected below the hollow rotating stage 1. Both the hollow rotating stage 1 and the mounting plate 4 have corresponding through holes at their centers. The camera head of the main camera 2 faces the through holes. A drive motor 3 is mounted on the hollow rotating stage 1. The drive end of the drive motor 3 is connected to the mounting plate 4 via a transmission component inside the hollow rotating stage 1. In this embodiment, the transmission component inside the hollow rotating stage 1 uses a gear transmission mechanism. Specifically, the drive end of the drive motor 3 cooperates with the input end of the hollow rotating stage 1, and the mounting plate 4 is connected to the output end of the hollow rotating stage 1. (The hollow rotating stage 1 uses a well-known technical solution in the prior art, which is already understood by those skilled in the art and will not be described further here.)

[0022] Four mounting brackets 5 are evenly installed on the outer edge of the mounting plate 4. Each mounting bracket 5 is set in a quarter-circle arc structure, and the center points of the arcs intersect at one point. Each mounting bracket 5 has an arc-shaped slide rail 6 on its side. A sliding frame 7 is slidably connected to the outer surface of the arc-shaped slide rail 6. A side camera 8 is fixedly installed on the outer side of the sliding frame 7. The shooting path of each side camera 8 intersects the shooting path of the main camera 2 at one point.

[0023] Working principle:

[0024] In use, the main camera 2 can directly visually inspect the product directly below through the through-hole in the center of the hollow rotating stage 1 and the mounting plate 4. Four mounting brackets 5 allow the four side cameras 8 to slide along the arc-shaped slide rails 6 on the sides of the brackets 5. In this embodiment, an arc-shaped rack parallel or coaxial with the arc-shaped slide rail 6 is installed on the mounting bracket 5. A small motor is mounted on the sliding bracket 7, and a gear is installed on the drive end of the small motor, allowing the gear to mesh with the arc-shaped rack. Controlling the small motor's operation drives the entire sliding bracket 7 to slide along the arc-shaped slide rail 6. Furthermore, a drive motor 3 is installed on the hollow rotating stage 1. Controlling the drive motor 3 rotates the entire mounting plate 4 via the hollow rotating stage, which in turn rotates each side camera 8 horizontally. This allows each side camera 8 to move both horizontally and vertically, ensuring comprehensive and multi-angle visual inspection of the product's sides, effectively improving the comprehensiveness and accuracy of defect detection.

[0025] In Example 2, as a further preferred embodiment of Example 1, a lampshade 9 is fixedly installed below the mounting plate 4. By evenly distributing several LEDs on the inner wall of the lampshade 9, the product is illuminated from all directions by multiple LEDs, thereby effectively improving the brightness of the product and making the images clearer.

[0026] In embodiment three, as a further preferred embodiment one, four slots 10 are evenly distributed on the side of the lampshade 9, each slot 10 corresponding to the shooting path of each side camera 8. The slots 10 are designed to prevent interference between the side cameras 8 and the lampshade 9 when they slide along the arc-shaped slide rail 6.

[0027] In Embodiment 4, as a further preferred embodiment of Embodiment 1, the mounting bracket 5 includes an arc-shaped plate 51 and a fixing plate 52 integrally formed. The fixing plate 52 is fixedly installed on the outer edge of the mounting plate 4, and the arc-shaped plate 51 is located below the fixing plate 52. In this embodiment, the surface of the fixing plate 52 has a plurality of strip-shaped holes 53 symmetrically formed, and the outer edge of the mounting plate 4 has threaded holes, with the strip-shaped holes 53 corresponding to the threaded holes.

[0028] The mounting plate 52 can be used to fix the mounting bracket 5 and the mounting plate 4. In addition, by symmetrically opening strip holes 53 on the surface of the mounting plate 52, the relative position between the mounting bracket 5 and the mounting plate 4 can be finely adjusted through the strip holes 53, thereby finely adjusting the relative position of the side cameras 8 on the side of the arc plate 51, so as to ensure that the shooting end of each side camera 8 can correspond to the product.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-camera detection module, characterized in that: The device includes a hollow rotating platform (1), a main camera (2) mounted on top of the hollow rotating platform (1), and a mounting plate (4) rotatably connected below the hollow rotating platform (1). The center of the hollow rotating platform (1) and the mounting plate (4) are respectively provided with through holes. The shooting head of the main camera (2) is directly opposite to the through hole. A drive motor (3) is mounted on the hollow rotating platform (1). The drive end of the drive motor (3) is connected to the mounting plate (4) through the transmission component inside the hollow rotating platform (1). Multiple mounting brackets (5) are evenly installed on the outer edge of the mounting plate (4). Each mounting bracket (5) is arranged in an arc shape and the center point of the arc intersects at one point. An arc-shaped slide rail (6) is provided on the side of the mounting bracket (5). A sliding frame (7) is slidably connected to the outer surface of the arc-shaped slide rail (6). A side camera (8) is fixedly installed on the outer side of the sliding frame (7). The shooting path of each side camera (8) intersects the shooting path of the main camera (2) at one point.

2. The multi-camera detection module according to claim 1, characterized in that: A lampshade (9) is fixedly installed below the mounting plate (4).

3. The multi-camera detection module according to claim 2, characterized in that: The lampshade (9) has multiple slots (10) evenly distributed on its side, and each slot (10) corresponds to the shooting route of each side camera (8).

4. The multi-camera detection module according to claim 1, characterized in that: The mounting bracket (5) includes an arc-shaped plate (51) and a fixing plate (52) that are integrally formed. The fixing plate (52) is fixedly installed on the outer edge of the mounting plate (4), and the arc-shaped plate (51) is located below the fixing plate (52).

5. A multi-camera detection module according to claim 4, characterized in that: The surface of the fixing plate (52) is symmetrically provided with multiple strip holes (53), and the outer edge of the mounting plate (4) is provided with threaded holes, with the strip holes (53) and the threaded holes corresponding to each other.

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