Product visual inspection equipment

Abstract

The invention discloses product visual inspection equipment, and relates to the technical field of visual inspection, the product visual inspection equipment comprises a main body and a product, a detection conveying module is arranged at the middle position in the main body, a positioning mechanism is arranged at the bottom of the detection conveying module, and a first frame is fixed in the main body. Product information is accurately obtained through product code scanning, tracing is facilitated, the positioning mechanism and the screen correction mechanism work cooperatively, the screen position and angle are accurately determined and corrected, the camera light source module can move according to needs, parameters are adjusted, clear and accurate images are obtained, the module is knocked to switch pictures, different display characteristics of the screen are stimulated, comprehensive detection is conducted, and after camera shooting, the detection precision is improved. The image processing unit analyzes images through an algorithm, accurately judges light leakage, flaws and black frame conditions, and gives an alarm and records in time when abnormity occurs, the whole detection process is closely connected and efficient in cooperation, the overall efficiency and accuracy of detection are further improved, and all-around reliable guarantee is provided for the quality of notebook screens.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection, in particular to a product visual inspection device. Background Art

[0002] With the widespread use of laptops in modern society, users have increasingly stringent requirements for their display effects and appearance quality. As a key interface for human-computer interaction, the quality of the laptop screen directly affects the user's visual experience and the overall quality of the product. If there are defects such as light leakage, black spots, black lines, bright spots, bright lines, etc. on the screen, it will not only interfere with the user's normal use, reduce the clarity and accuracy of the image display, but may also cause users to question the product quality, thereby affecting the product's market competitiveness.

[0003] Traditional notebook screen inspection methods mostly rely on manual visual inspection, which is highly subjective and prone to fatigue among inspectors, resulting in low inspection efficiency and difficulty in ensuring accuracy. When faced with complex screen defect types and subtle black border installation differences, manual inspection often results in misjudgments and missed inspections. In addition, manual inspection is slow and cannot meet the needs of rapid inspection on large-scale production lines, becoming a bottleneck restricting the improvement of production efficiency.

[0004] Although some automated inspection equipment has been put into use, there are still many problems. Some equipment is not comprehensive in detection functions and can only detect a single type of defect or a certain parameter of the black border. It is unable to conduct a comprehensive quality assessment of the screen. At the same time, the detection accuracy of existing equipment is limited. It is difficult to accurately identify some slight light leakage or tiny defects. Moreover, it is often difficult to balance the detection speed and detection accuracy. When increasing the detection speed, it is easy to sacrifice accuracy, resulting in the outflow of defective products and affecting the stability of product quality. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a product visual inspection device to solve the technical problems in the prior art of large manual inspection errors during notebook screen inspection and slow inspection speed of automated equipment affecting the overall inspection efficiency.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a product visual inspection device, comprising a main body and a product, wherein a detection and conveying module is arranged at a middle position inside the main body, and a positioning mechanism is arranged at the bottom of the detection and conveying module, a first frame is fixed inside the main body, a second frame is fixed inside the first frame, and the detection and conveying module is fixed inside the first frame;

[0007] The positioning mechanism includes a screw rod, a slider and a positioning rod, wherein the slider and the screw rod are threadedly connected, and the positioning rod is located above the detection and conveying module, and the two ends of the positioning rod are respectively fixedly connected to two groups of sliders located at the two ends of the detection and conveying module;

[0008] The positioning mechanism also includes a support block, a drive motor and a transmission belt. The two sides of the two groups of screw rods are connected to the first frame through the support block, and the two sides of the transmission belts are connected through the transmission belt, and the drive motor is installed on one side of one group of screw rods.

[0009] A screen correction mechanism is arranged inside the main body, and the screen correction mechanism includes a push wheel, and the push wheel is located at the back of the product to adjust its angle. The screen correction mechanism also includes a slide module and a connecting frame, and the slide module is fixed inside the first frame, and the connecting frame is located below the slide module and is slidably connected to the slide module, and a plurality of push wheels are movably connected to the end of the connecting frame;

[0010] An AOI visual inspection mechanism is provided at a position inside the main body away from one side of the screen correction mechanism, and the AOI visual inspection mechanism includes an AOI inspection module, and the AOI inspection module is located on the front of the product to detect its screen;

[0011] The AOI visual inspection mechanism also includes a moving module and a sliding plate, wherein the moving module is fixed inside the second frame, the sliding plate is located below the moving module and is slidably connected thereto, and the AOI inspection module is fixed on the top of the sliding plate;

[0012] A knocking mechanism is provided at one end inside the main body, and the knocking mechanism includes a knocking head, and the knocking head is located at one end of the product to knock on its keyboard. The knocking mechanism also includes a fixed plate, a rotating cylinder and a rotating rod. The fixed plate is fixed on the second frame, and the rotating cylinder is fixed on the fixed plate. The rotating rod is fixed on the output end of the rotating cylinder, and the rotating cylinder drives the rotating rod to rotate. The end of the rotating rod and the knocking head are connected to each other, and the knocking head and the rotating rod are adjustably connected by bolts.

[0013] By adopting the above technical solutions, the front-end equipment is used to ensure a stable supply of screens to be tested. The product code is scanned to accurately obtain product information for easy traceability and personalized testing. The positioning mechanism and the screen correction mechanism work together to accurately determine and correct the screen position and angle, providing an accurate basis for subsequent testing. The camera light source module can be moved and parameters can be adjusted as needed to obtain clear and accurate images. The module can be tapped to switch the screen to stimulate different display characteristics of the screen for comprehensive testing. After the camera shoots, the image processing unit analyzes the image through complex algorithms, accurately determines light leakage, defects and black borders, and promptly alarms and records abnormalities. If qualified, it will smoothly enter the next stage. The entire testing process is closely connected and collaborative and efficient, which further improves the overall efficiency and accuracy of the test, provides all-round and reliable protection for the quality of notebook screens, and improves the overall quality and user experience of laptops.

[0014] Furthermore, a feed input line and a discharge output line are respectively provided at both ends of the main body, and the discharge output line is placed at an angle. Both the feed input line and the discharge output line contain a drive module and an output belt, and the drive module drives the output belt to convey the product.

[0015] By adopting the above technical solution, the feed input line is connected to the detection and conveying module to accurately transport the products to be tested to the detection area, and the products after testing are output in an orderly manner through the discharging output line, realizing the automation of the product testing process and improving the overall testing efficiency.

[0016] To sum up, the present invention mainly has the following beneficial effects: the present invention ensures a stable supply of screens to be tested through the front-end equipment, the product code is scanned to accurately obtain product information for traceability and personalized testing, the positioning mechanism and the screen correction mechanism work together to accurately determine and correct the screen position and angle, and provide a precise basis for subsequent testing. The camera light source module can be moved and the parameters can be adjusted as needed to obtain clear and accurate images, and the module can be tapped to switch the screen to stimulate different display characteristics of the screen for comprehensive testing. After the camera is taken, the image processing unit analyzes the image through a complex algorithm, accurately judges light leakage, defects and black borders, and promptly alarms and records when abnormalities occur. If qualified, it can smoothly enter the next link. The entire detection process is closely connected and collaborative and efficient, which further improves the overall efficiency and accuracy of the detection, provides all-round and reliable protection for the quality of notebook screens, and improves the overall quality and user experience of laptop computers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the first viewing angle of the whole present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention as a whole;

[0019] Figure 3 It is a partial structural schematic diagram of the present invention;

[0020] Figure 4 It is an enlarged view of the local structure of the present invention;

[0021] Figure 5 It is an enlarged view of a part of the structure of the present invention;

[0022] Figure 6 It is an enlarged exploded view of a part of the structure of the present invention;

[0023] Figure 7 It is an enlarged structural diagram of the first frame of the present invention;

[0024] Figure 8 It is an enlarged structural diagram of the second frame of the present invention;

[0025] Fig. 9This is an enlarged view of the structure of the AOI visual inspection mechanism of the present invention;

[0026] Fig.10 It is an enlarged structural diagram of the screen correction mechanism of the present invention;

[0027] Fig.11 It is an enlarged structural diagram of the striking mechanism of the present invention;

[0028] Fig.12 It is a second perspective structural schematic diagram of the present invention as a whole.

[0029] In the figure: 1. main body; 2. first frame; 3. second frame; 4. detection and conveying module; 5. positioning mechanism; 501. support block; 502. screw rod; 503. drive motor; 504. slider; 505. transmission belt; 506. positioning rod; 6. screen correction mechanism; 601. slide module; 602. connecting frame; 603. push wheel; 7. AOI visual inspection mechanism; 701. mobile module; 702. sliding plate; 703. AOI inspection module; 8. knocking mechanism; 801. fixed plate; 802. rotating cylinder; 803. rotating rod; 804. knocking head; 9. product; 10. feed input line; 11. discharge output line. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] Embodiment 1

[0033] A product visual inspection device, such as Figure 1-12 As shown, the product visual inspection equipment is mainly composed of a main body 1, a first frame 2, a second frame 3, a detection and conveying module 4, a positioning mechanism 5, a screen correction mechanism 6, an AOI visual inspection mechanism 7, a knocking mechanism 8, a product 9, a feed input line 10 and a discharge output line 11;

[0034] The main body 1 is the shell of the device, and various functional modules are installed inside. The first frame 2 and the second frame 3 are fixed inside the main body 1 to support and install other components. The detection and conveying module 4 is used to convey the product 9, which is fixed inside the first frame 2. The feed input line 10 and the discharge output line 11 are respectively located at both ends of the main body 1, responsible for the input and output of the product 9, wherein the discharge output line 11 is placed obliquely, and the feed input line 10 and the discharge output line 11 both contain a driving module and an output belt, and the driving module drives the output belt to realize the conveyance of the product 9;

[0035] The positioning mechanism 5 includes a support block 501, a screw rod 502, a drive motor 503, a slider 504, a transmission belt 505 and a positioning rod 506. The two sides of the two groups of screw rods 502 are connected to the first frame 2 through the support block 501. The slider 504 and the screw rod 502 are threadedly connected. The positioning rod 506 is located above the detection and conveying module 4 and its two ends are respectively fixedly connected to the two groups of sliders 504 located at the two ends of the detection and conveying module 4. A drive motor 503 is installed on one side of one group of screw rods 502. The two groups of screw rods 502 are connected by a transmission belt 505. When working, the drive motor 503 drives the screw rod 502 to rotate, and the positioning rod 506 is moved through the slider 504, so as to realize the positioning of the product 9 during the conveying process;

[0036] Specifically, as the slider 504 moves, the positioning rod 506 can accurately position the product 9 on the detection and conveying module 4, ensuring that the product 9 is in the correct position in the subsequent detection steps, effectively reducing detection errors caused by product position deviation and improving detection accuracy;

[0037] The screen correction mechanism 6 is composed of a slide module 601, a connecting frame 602 and a push wheel 603. The slide module 601 is fixed inside the first frame 2. The connecting frame 602 is located below the slide module 601 and is slidably connected thereto. The end of the connecting frame 602 is movably connected to multiple groups of push wheels 603. When the product 9 reaches the specified position, the slide module 601 drives the connecting frame 602 to move, so that the push wheel 603 contacts the back of the product 9, and adjusts the angle of the product 9 to ensure that the product 9 is at the correct angle during detection.

[0038] The push wheel 603 is made of a soft material with a certain friction force, which can effectively push the product 9 to adjust the angle without causing damage to the product 9;

[0039] By rotating and adjusting the position of the push wheel 603, the angle of the product 9 is finely corrected, so that the screen of the product 9 can face the AOI visual inspection mechanism 7 in the best posture, which helps to improve the inspection accuracy and ensure the reliability of the inspection results;

[0040] The AOI visual inspection mechanism 7 includes a mobile module 701, a sliding plate 702 and an AOI inspection module 703. The mobile module 701 is fixed inside the second frame 3. The sliding plate 702 is located below the mobile module 701 and is slidably connected thereto. The AOI inspection module 703 is fixed on the top of the sliding plate 702. The position of the AOI inspection module 703 can be adjusted by the mobile module 701, so that it can perform all-round inspection on the screen on the front of the product 9 and obtain a clear and accurate image, so as to detect whether there are defects such as light leakage, black spots, black lines, bright spots, bright lines, etc. on the screen;

[0041] Specifically, the AOI detection module 703 uses its high-precision visual detection technology to shoot the screen of the product 9 and obtain screen image information. The AOI detection module 703 has high resolution and high frame rate, and can clearly capture the subtle defects of the screen and the changes in the display status. Then, through the internal complex image processing algorithm, the image is analyzed to detect whether there are defects such as light leakage, black spots, black lines, bright spots, bright lines, etc. on the screen, and to evaluate various indicators such as the clarity and accuracy of the screen display. Its high-precision detection capability effectively reduces the misjudgment rate and ensures the accuracy of the detection results;

[0042] The knocking mechanism 8 is composed of a fixed plate 801, a rotating cylinder 802, a rotating rod 803 and a knocking head 804. The fixed plate 801 is fixed on the second frame 3, the rotating cylinder 802 is fixed on the fixed plate 801, the rotating rod 803 is fixed on the output end of the rotating cylinder 802, the knocking head 804 and the ends of the rotating rod 803 are connected to each other and are adjustable by bolts, the rotating cylinder 802 drives the rotating rod 803 to rotate, so that the knocking head 804 knocks on the keyboard of the product 9, switches the screen image, and stimulates different display characteristics of the screen, so as to facilitate a more comprehensive detection of the screen quality;

[0043] Furthermore, the knocking head 804 is made of soft material to avoid damage to the keyboard of the product 9. According to the preset knocking frequency and sequence, the screen display screen is switched between different colors, modes, etc., so that the AOI visual inspection mechanism 7 can detect the performance of the screen in different states, comprehensively evaluate the screen quality, and improve the comprehensiveness of the inspection;

[0044] Specifically, the product 9 to be tested is conveyed to the detection and conveying module 4 through the feed input line 10, and the driving module of the feed input line 10 ensures a stable supply of the product;

[0045] The positioning mechanism 5 works, the driving motor 503 drives the screw rod 502 to rotate, and the product 9 is accurately positioned through the slider 504 and the positioning rod 506, and then the slide module 601 of the screen correction mechanism 6 drives the connecting frame 602 and the push wheel 603 to move, and correct the angle of the product 9;

[0046] The mobile module 701 of the AOI visual inspection mechanism 7 adjusts the position of the AOI inspection module 703 to inspect the screen of the product 9. After acquiring the image, the image processing unit uses a complex algorithm to analyze and determine whether there is light leakage, defects, black border abnormalities, etc. on the screen;

[0047] The rotating cylinder 802 of the knocking mechanism 8 drives the rotating rod 803 and the knocking head 804 to knock the keyboard of the product 9, switch the screen image, and perform visual inspection again to ensure comprehensive inspection of the screen quality;

[0048] The qualified products 9 are output through the discharging output line 11 and enter the next link; if an abnormality is detected, an alarm is issued in time and relevant information is recorded.

[0049] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A product visual inspection device, comprising a main body (1) and a product (9), characterized in that: A detection and conveying module (4) is arranged at a middle position inside the main body (1), and a positioning mechanism (5) is arranged at the bottom of the detection and conveying module (4); The positioning mechanism (5) comprises a screw rod (502), a slider (504) and a positioning rod (506); the slider (504) and the screw rod (502) are threadedly connected, the positioning rod (506) is located above the detection and conveying module (4), and the two ends of the positioning rod (506) are respectively fixedly connected to two groups of sliders (504) located at the two ends of the detection and conveying module (4); a screen correction mechanism (6) is arranged inside the main body (1), and the screen correction mechanism (6) comprises a push wheel (603); the push wheel (603) is located on the back of the product (9) to adjust its angle; An AOI visual inspection mechanism (7) is arranged inside the main body (1) at a position away from the side of the screen correction mechanism (6), and the AOI visual inspection mechanism (7) includes an AOI inspection module (703), and the AOI inspection module (703) is located at the front of the product (9) to perform a screen inspection function, and a knocking mechanism (8) is arranged at one end inside the main body (1), and the knocking mechanism (8) includes a knocking head (804), and the knocking head (804) is located at one end of the product (9) to perform a keyboard knocking function.

2. The product visual inspection equipment according to claim 1, characterized in that: A first frame (2) is fixed inside the main body (1), a second frame (3) is fixed inside the first frame (2), and a detection and conveying module (4) is fixed inside the first frame (2).

3. The product visual inspection device according to claim 2, characterized in that: The positioning mechanism (5) further comprises a support block (501), a drive motor (503) and a transmission belt (505); the two sides of the two groups of screw rods (502) and the first frame (2) are connected via the support block (501); the two sides of the two groups of transmission belts (505) are connected via the transmission belt (505); and the drive motor (503) is installed on one side of one group of screw rods (502).

4. The product visual inspection device according to claim 2, characterized in that: The screen correction mechanism (6) further comprises a slide module (601) and a connecting frame (602), wherein the slide module (601) is fixed inside the first frame (2), and the connecting frame (602) is located below the slide module (601) and is slidably connected thereto, and a plurality of push wheels (603) are movably connected to the end of the connecting frame (602).

5. The product visual inspection equipment according to claim 2, characterized in that: The AOI visual inspection mechanism (7) further comprises a moving module (701) and a sliding plate (702), wherein the moving module (701) is fixed inside the second frame (3), the sliding plate (702) is located below the moving module (701) and is slidably connected thereto, and the AOI inspection module (703) is fixed on top of the sliding plate (702).

6. The product visual inspection device according to claim 2, characterized in that: The knocking mechanism (8) further comprises a fixed plate (801), a rotating cylinder (802) and a rotating rod (803); the fixed plate (801) is fixed on the second frame (3), and the rotating cylinder (802) is fixed on the fixed plate (801); the rotating rod (803) is fixed on the output end of the rotating cylinder (802), and the rotating cylinder (802) plays a role in driving the rotating rod (803) to rotate.

7. The product visual inspection device according to claim 6, characterized in that: The end of the rotating rod (803) and the striking head (804) are connected to each other, and the striking head (804) and the rotating rod (803) are adjustably connected via bolts.

8. The product visual inspection device according to claim 1, characterized in that: A material input line (10) and a material output line (11) are respectively arranged at two ends of the main body (1), and the material output line (11) is placed at an inclination.

9. The product visual inspection device according to claim 8, characterized in that: The feed input line (10) and the discharge output line (11) both include a drive module and an output belt, and the drive module drives the output belt to convey the product (9).

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