Screen vision detection mechanism and screen module detection equipment

Abstract

The utility model discloses a screen vision detection mechanism and screen module detection equipment, the screen vision detection mechanism comprises a vision mounting rack, at least one first camera and at least one second camera, the vision mounting rack is movably arranged, and the first camera and the second camera are both arranged on the vision mounting rack. A view-finding lens of the first camera is vertically downward and faces the front face of the screen, and a view-finding lens of the second camera is obliquely downward and faces the side face of the screen. Through the arrangement of the first camera and the second camera, all-directional visual capture can be performed on the front surface and the side surface of the screen, the comprehensiveness of visual detection is improved, meanwhile, as the visual mounting frame is movably arranged, the first camera and the second camera can perform visual detection on the screens at multiple stations, and the visual detection efficiency is improved. And the detection cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screen module devices, and in particular to a screen visual detection mechanism and screen module detection equipment. Background Art

[0002] After mobile phone screens are manufactured, they need to undergo visual inspection. Currently, visual inspection systems are unable to fully capture the visual information of mobile phone screens, resulting in blind spots during inspection. Furthermore, existing visual inspection systems can only perform one-to-one inspections, meaning one visual inspection system corresponds to one screen inspection station. If there are multiple screen inspection stations, multiple visual inspection systems are required, resulting in high inspection costs. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a screen visual inspection mechanism and a screen module inspection device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] On the one hand, the utility model provides a screen visual detection mechanism, including a visual mounting frame, at least one first camera and at least one second camera, the visual mounting frame is movably arranged, the first camera and the second camera are both arranged on the visual mounting frame, the viewfinder lens of the first camera is vertically downward and facing the front of the screen, and the viewfinder lens of the second camera is tilted downward and facing the side of the screen.

[0006] Furthermore, it also includes a linear module, the visual mounting frame is connected to the linear module, and the visual mounting frame moves under the action of the linear module.

[0007] Furthermore, the linear module includes a support frame, a transmission screw, a screw motor, a screw nut, a linear guide and a linear moving block. The linear guide is fixed on the support frame, the transmission screw is arranged in the same direction as the linear guide and is connected to the screw motor in transmission, the screw nut is connected to the transmission screw, the linear moving block is fixedly connected to the screw nut, the linear moving block is slidably connected to the linear guide, and the visual mounting frame is fixedly connected to the support frame.

[0008] Furthermore, the visual mounting frame includes an upper connecting plate, which is U-shaped. Two avoidance grooves are arranged at intervals along the arrangement direction of the linear guide rail at the bottom of the support frame. The two sides of the upper connecting plate pass through the two avoidance grooves and are fixedly connected to the two sides of the linear moving block.

[0009] Furthermore, the visual mounting frame also includes a lower connecting plate, the top of the lower connecting plate is fixedly connected to the bottom edge of the upper connecting plate, and the first camera and the second camera are installed on the lower connecting plate.

[0010] Furthermore, the lower connecting plate is extended with a visual connection arm, and the second camera is connected to the visual connection arm.

[0011] Furthermore, the lower connecting plate is provided with two of the first cameras side by side, the lower connecting plate is provided with two of the visual connection arms, the two visual connection arms are arranged at an angle, and the two visual connection arms are provided with the second camera.

[0012] Furthermore, it also includes a fill light component, which includes a fill light frame and a fill light. The fill light frame is in a square shape and is fixedly connected to the visual mounting frame. The fill light is provided on all four sides of the fill light frame.

[0013] Furthermore, the pixels of the first camera are larger than those of the second camera, the first camera is a black and white camera, and the second camera is a color camera.

[0014] On the other hand, the present invention also provides a screen module detection device, including the above-mentioned screen visual detection mechanism.

[0015] Compared with the prior art, the present invention has the following advantages: a screen visual inspection mechanism includes a visual mounting frame, at least one first camera, and at least one second camera. The visual mounting frame is movable, and the first camera and the second camera are both mounted on the visual mounting frame. The viewfinder lens of the first camera is vertically downward and faces the front of the screen, while the viewfinder lens of the second camera is tilted downward and faces the side of the screen. The present invention, through the arrangement of the first and second cameras, can visually capture the front and side of the screen in all directions, thereby improving the comprehensiveness of visual inspection. At the same time, due to the movable arrangement of the visual mounting frame, the first and second cameras can perform visual inspection of screens at multiple workstations, greatly reducing the cost of inspection.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a screen visual detection mechanism provided in a specific embodiment of the present utility model;

[0019] Figure 2 A partial structural diagram of a screen visual detection mechanism provided by a specific embodiment of the utility model;

[0020] Figure 3 The present invention is a structural schematic diagram of a visual mounting frame in a screen visual detection mechanism provided in a specific embodiment of the present invention.

[0021] Reference numerals

[0022] 1. Vision mounting frame; 11. Upper connecting plate; 12. Lower connecting plate; 2. First camera; 3. Second camera; 4. Linear module; 41. Support frame; 42. Drive screw; 43. Screw motor; 44. Screw nut; 45. Linear guide; 46. Linear moving block; 5. Fill light assembly; 51. Fill light frame; 52. Fill light; 6. Vision connection arm. DETAILED DESCRIPTION

[0023] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] The embodiment of the utility model provides a screen visual detection mechanism suitable for mobile phone screen visual detection.

[0030] like Figure 1-Figure 3 As shown, the screen visual detection mechanism includes a visual mounting frame 1, at least one first camera 2 and at least one second camera 3. The visual mounting frame 1 is movably arranged, and the first camera 2 and the second camera 3 are both arranged on the visual mounting frame 1. The viewfinder lens of the first camera 2 is vertically downward and toward the front of the screen, and the viewfinder lens of the second camera 3 is tilted downward and toward the side of the screen.

[0031] First camera 2 captures images of the front of the screen from a vertical perspective, clearly capturing surface details. Second camera 3 captures images of the side of the screen from an oblique angle, facilitating inspection of the screen's edges and display effects. Combining front and side perspectives covers multiple dimensions of the screen, reducing blind spots and ensuring a comprehensive assessment of the screen's overall performance, enhancing the comprehensiveness of visual inspection. Furthermore, the movable visual mounting frame 1 enables visual inspection of screens at multiple workstations using both first and second cameras 2 and 3, significantly reducing inspection costs.

[0032] like Figure 1-Figure 2 As shown, the screen visual inspection mechanism also includes a linear module 4, to which the visual mounting frame 1 is connected. The linear module 4 allows the visual mounting frame 1 to move precisely in a linear motion. This facilitates the visual inspection of screens at multiple workstations by the first camera 2 and the second camera 3.

[0033] like Figure 2 As shown, the linear module 4 includes a support frame 41, a transmission screw 42, a screw motor 43, a screw nut 44, a linear guide 45 and a linear moving block 46. The linear guide 45 is fixed on the support frame 41, the transmission screw 42 and the linear guide 45 are arranged in the same direction, and are connected to the screw motor 43 for transmission, the screw nut 44 is connected to the transmission screw 42, the linear moving block 46 is fixedly connected to the screw nut 44, the linear moving block 46 is slidably connected to the linear guide 45, and the visual mounting frame 1 is fixedly connected to the support frame 41.

[0034] The support frame 41 serves as the basic structure of the entire linear module 4, and the support frame 41 provides the necessary stability and support force. The transmission screw 42 is a spiral mechanical element, which is used to convert the rotational motion of the screw motor 43 into linear motion. By rotating, the transmission screw 42 can move the screw nut 44 along its own axis, thereby pushing the connected linear moving block 46. The screw motor 43 drives the rotation of the transmission screw 42, so that the transmission screw 42 can rotate, thereby pushing the screw nut 44 and the linear moving block 46 to perform linear motion. The screw nut 44 is connected to the transmission screw 42, and is responsible for receiving the rotational motion of the transmission screw 42 and converting it into linear motion. The linear moving block 46 is fixedly connected to the screw nut 44 and slides along the linear guide 45 to achieve linear movement.

[0035] Linear guides 45 provide guidance, ensuring smooth and precise movement of the linear motion block 46. The vision mount 1 is fixed to the linear motion block 46. As the block moves, the first and second cameras 2 and 3 on the vision mount 1 can perform visual inspections at different positions. The combination of the drive screw 42 and linear guides 45 ensures high precision and stability, reduces the impact of mechanical errors, and facilitates installation.

[0036] like Figure 2-Figure 3 As shown, the visual mounting frame 1 includes an upper connecting plate 11, which is U-shaped. Two avoidance grooves are arranged at intervals along the arrangement direction of the linear guide rail 45 at the bottom of the support frame 41. The two sides of the upper connecting plate 11 pass through the two avoidance grooves and are fixedly connected to the two sides of the linear moving block 46.

[0037] The upper connecting plate 11 has a U-shaped structure and has high strength and rigidity, which enables the upper connecting plate 11 to not only withstand a certain load, but also maintain overall stability when the visual mounting frame 1 moves, reducing the impact of vibration or other mechanical stress.

[0038] Two avoidance slots are designed at the bottom of the support frame 41, so that the two sides of the upper connecting plate 11 can pass through the support frame 41 and be fixedly connected to the linear moving block 46. This design not only effectively utilizes the space, but also ensures the smooth movement of the visual mounting frame 1 without unnecessary interference with the support frame 41. At the same time, the avoidance slot provides a direct connection path between the upper connecting plate 11 and the linear moving block 46. When the visual mounting frame 1 moves, it will not be restricted or interfered with by the support frame 41, thereby ensuring the smoothness and precision of the linear movement. In addition, through the design of the avoidance slot, the upper connecting plate 11 can cooperate more closely with the linear moving block 46, thereby achieving more efficient mechanical movement in a limited space without the need for excessive changes to the support frame 41.

[0039] like Figure 2-Figure 3 As shown, the visual mounting frame 1 also includes a lower connecting plate 12 , the top of the lower connecting plate 12 is fixedly connected to the bottom edge of the upper connecting plate 11 , and the first camera 2 and the second camera 3 are mounted on the lower connecting plate 12 .

[0040] Lower connecting plate 12 serves as a base platform supporting first and second cameras 2, 3. Its fixed connection to upper connecting plate 11 provides a sturdy mounting foundation, ensuring the stability and accuracy of first and second cameras 2, 3 during the inspection process. This design allows first and second cameras 2, 3 to be mounted on lower connecting plate 12 at a fixed angle and position, preventing camera displacement or inspection errors caused by equipment movement or vibration.

[0041] In one embodiment, the lower connecting plate 12 is generally T-shaped, the first camera 2 is arranged on the horizontal plate of the lower connecting plate 12, and the vertical plate of the lower connecting plate 12 is fixedly connected to the bottom edge of the upper connecting plate 11. It should be noted that the upper connecting plate 11 and the lower connecting plate 12 can be an integrated structure or a separate structure.

[0042] like Figure 3 As shown, the lower connecting plate 12 is extended with a visual connection arm 6 , and the second camera 3 is connected to the visual connection arm 6 .

[0043] The visual connection arm 6 is integrally formed with the lower connecting plate 12 or securely connected via fasteners. The visual connection arm 6 provides a mounting location for the second camera 3, which is secured to the end or side of the visual connection arm 6 via bolts or other fastening methods. The design of the visual connection arm 6 allows the second camera 3 to be mounted at a different viewing angle and position than the first camera 2, enabling multi-angle and multi-directional inspection of the screen.

[0044] It should be noted that the visual connection arm 6 can be designed as a fixed or adjustable structure depending on the inspection requirements. The fixed structure ensures that the second camera 3 maintains a stable inspection position during the inspection process, while the adjustable structure allows the angle and distance of the second camera 3 to be flexibly adjusted in different inspection scenarios to meet different inspection requirements.

[0045] The designed visual connection arm 6 allows the second camera 3 to be mounted farther from the lower connecting plate 12, thereby expanding the overall inspection coverage. Different camera viewing angles enable data collection from multiple directions, enabling comprehensive inspection of the object. Furthermore, mounting the second camera 3 on the visual connection arm 6 avoids potential obstruction by the lower connecting plate 12, ensuring a clearer and more unobstructed inspection perspective.

[0046] like Figure 1-Figure 2 As shown, the lower connecting plate 12 is provided with two first cameras 2 side by side for realizing the primary visual detection of the detected object. The positions of the two first cameras 2 can be fine-tuned according to the detection requirements to ensure that the key parts of the detection area are covered. By arranging the two first cameras 2 side by side, a wider field of view and the supplement of different detection angles can be achieved, thereby enhancing the detection capability of the system. The lower connecting plate 12 is further provided with two visual connection arms 6, and the two visual connection arms 6 are arranged at a certain angle to form multi-angle coverage of the detected object. A second camera 3 is installed on each visual connection arm 6, and the second camera 3 is fixed to the end of the visual connection arm 6 by means of bolts, snaps, etc. The angle arrangement of the visual connection arm 6 can be adjusted according to the shape and characteristics of the detection object to ensure that the two second cameras 3 can fully capture and detect the detected object from different angles.

[0047] By placing two first cameras 2 side by side on the lower connecting plate 12, the inspection range can be expanded. These two side-by-side cameras 2 can cover a larger area, reducing the possibility of missed detections. The two visual connection arms 6 are arranged at an angle, each with a second camera 3 mounted on it, enabling the capture of inspection objects from different angles and dimensions. This arrangement allows the two second cameras 3 to acquire inspection data from different directions, effectively improving the accuracy and completeness of inspections.

[0048] like Figure 1 As shown, the screen visual inspection mechanism also includes a fill light assembly 5, which consists of a fill light frame 51 and multiple fill light lamps 52. The fill light frame 51 is square in shape, with a fill light 52 at each corner. It is fixed to the visual mounting frame 1 via snaps, bolts, or welding. The structural design of the fill light frame 51 ensures the stability of the fill light lamps 52 and the uniform distribution of light, thereby optimizing the lighting conditions in the inspection area.

[0049] The position and lighting direction of each fill light 52 can be adjusted according to specific application requirements to achieve the optimal lighting effect. The fill light 52 can use an LED light source, and its brightness, color temperature, and lighting angle are all adjustable. The fill light frame 51 is designed to ensure uniform and sufficient lighting during screen visual inspection, thereby avoiding inspection errors caused by insufficient or uneven lighting.

[0050] In one embodiment, the first camera 2 and the second camera 3 differ in pixel count and image sensor type to meet the needs of different inspection tasks. Specifically, the first camera 2 has a larger pixel count than the second camera 3, and the first camera 2 is a black and white camera, while the second camera 3 is a color camera. The higher pixel count of the first camera 2 enables it to capture finer and higher-resolution image details, making it more suitable for capturing the front of the screen. Because black and white cameras are not affected by color filters, they have higher light sensing efficiency and can obtain clearer images within the same exposure time. Therefore, when precise capture of minute details is required, the first camera 2 can provide higher-quality image data.

[0051] The second camera, 3, is a color camera. Although it has a relatively low pixel count, it is capable of capturing color information about objects. A color camera uses different color filters to capture RGB (red, green, and blue) three-channel images, making it suitable for inspection tasks requiring color recognition. For example, when differentiating between different color regions, detecting color variations, or defects is required, a color camera can provide the necessary color information, assisting the system in completing comprehensive inspections.

[0052] In one embodiment, two first cameras 2 employ 12-megapixel Ecco global black-and-white cameras to capture the screen vertically, with the 3,000-pixel short side of the camera corresponding to the short side of the screen, and the 4,000-pixel long side of the camera corresponding to each other's long side. Two second cameras 3 employ 10-megapixel Ecco global color cameras to capture the screen sideways, with one capturing the long side of the screen and the other capturing the short side. Furthermore, both first and second cameras 2 and 3 employ 35mm lenses.

[0053] The present invention also provides a screen module detection device including the above-mentioned screen visual detection mechanism. Except for the above-mentioned screen visual detection mechanism, the remaining structures of the screen module detection device are the same as those in the prior art, and therefore, the remaining structures are not described here in detail.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A screen visual detection mechanism, characterized in that: It includes a visual mounting frame, at least one first camera and at least one second camera. The visual mounting frame is movably arranged. The first camera and the second camera are both arranged on the visual mounting frame. The viewfinder lens of the first camera is vertically downward and toward the front of the screen. The viewfinder lens of the second camera is tilted downward and toward the side of the screen.

2. A screen visual detection mechanism according to claim 1, characterized in that: It also includes a linear module, the visual mounting frame is connected to the linear module, and the visual mounting frame moves under the action of the linear module.

3. A screen visual detection mechanism according to claim 2, characterized in that: The linear module includes a support frame, a transmission screw, a screw motor, a screw nut, a linear guide and a linear moving block. The linear guide is fixed to the support frame, the transmission screw is arranged in the same direction as the linear guide and is transmission-connected to the screw motor, the screw nut is connected to the transmission screw, the linear moving block is fixedly connected to the screw nut, the linear moving block is slidingly connected to the linear guide, and the visual mounting frame is fixedly connected to the support frame.

4. A screen visual detection mechanism according to claim 3, characterized in that: The visual mounting frame includes an upper connecting plate, which is U-shaped. Two avoidance slots are arranged at intervals along the arrangement direction of the linear guide rail at the bottom of the support frame. The two sides of the upper connecting plate pass through the two avoidance slots and are fixedly connected to the two sides of the linear moving block.

5. A screen visual detection mechanism according to claim 4, characterized in that: The visual mounting frame also includes a lower connecting plate, the top of which is fixedly connected to the bottom edge of the upper connecting plate, and the first camera and the second camera are mounted on the lower connecting plate.

6. A screen visual detection mechanism according to claim 5, characterized in that: The lower connecting plate is extended with a visual connection arm, and the second camera is connected to the visual connection arm.

7. A screen visual detection mechanism according to claim 6, characterized in that: The lower connecting plate is provided with two first cameras side by side, and the lower connecting plate is provided with two visual connection arms, the two visual connection arms are arranged at an angle, and the two visual connection arms are provided with the second camera.

8. A screen visual inspection mechanism according to claim 1, characterized in that: It also includes a fill light component, which includes a fill light frame and a fill light. The fill light frame is in a square shape and is fixedly connected to the visual mounting frame. The fill light is provided on all four sides of the fill light frame.

9. A screen visual inspection mechanism according to claim 1, characterized in that: The pixels of the first camera are larger than those of the second camera. The first camera is a black and white camera, and the second camera is a color camera.

10. A screen module detection device, characterized in that: The invention comprises the screen visual detection mechanism described in any one of claims 1 to 9.

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