Product visual inspection equipment

Abstract

The utility model discloses visual inspection equipment for products, which relates to the technical field of visual inspection and comprises a main body and the products, a detection conveying module is arranged in the middle inside the main body, a positioning mechanism is arranged at the bottom of the detection conveying module, and a first frame is fixed inside 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 position and angle of the screen are accurately determined and corrected, the camera light source module can move and adjust parameters according to needs, clear and accurate images are obtained, the module is knocked to switch pictures, different display characteristics of the screen are stimulated, comprehensive detection is achieved, and the detection efficiency is improved. After the camera shoots, the image processing unit analyzes the image through an algorithm, accurately judges the conditions of light leakage, flaws and black frames, 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 the notebook computer screen.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual inspection technical field, concretely is a kind of product visual inspection equipment. BACKGROUND

[0002] With the wide application of notebook computer in modern society, the user's requirement to its display effect and appearance quality is increasingly strict, and the quality of notebook screen as the key interface of human-computer interaction directly affects the user's visual experience and the overall quality of product, and if there are defects such as light leakage, black point, black line, bright spot, bright line and the like on the screen, not only will interfere with normal use of the user, reduce the definition and accuracy of image display, but also may cause the user to question the product quality, and further affect the market competitiveness of product.

[0003] The traditional notebook screen detection method is mostly dependent on artificial visual inspection, and this way is subjective, and the detection personnel is easy to fatigue, leading to low detection efficiency and difficult to guarantee accuracy, and artificial detection is often misjudged and missed when facing complex screen defect types and subtle black frame installation differences, in addition, artificial detection is slow, and it is difficult to meet the demand of rapid detection on large-scale production line, and becomes the bottleneck of production efficiency improvement.

[0004] Although part of automatic detection equipment has been put into use, there are still many problems, some equipment is not comprehensive in detection function, can only detect single type of defect or a parameter of black frame, cannot perform overall quality evaluation on screen, and the detection accuracy of existing equipment is limited, and it is difficult to accurately identify some slight light leakage or slight defect, and the detection speed and detection accuracy are often difficult to balance, and the detection speed is improved, and the accuracy is easily sacrificed, leading to the flow of defective products, and affecting product quality stability. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a kind of product visual inspection equipment to solve the technical problem of notebook screen detection in prior art, which uses artificial detection with large error and automatic equipment detection with slow speed to affect overall detection efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of product visual inspection equipment, including main body and product, the middle position of the inside of main body is provided with detection conveying module, and the bottom of detection conveying module is provided with positioning mechanism, the inside of main body is fixed with first frame, and the inside of first frame is fixed with second frame, and detection conveying module is fixed in the inside of first frame;

[0007] The positioning mechanism comprises a screw rod, a sliding block and a positioning rod, the sliding block and the screw rod are in threaded connection, the positioning rod is above the detection conveying module, and the two ends of the positioning rod are fixedly connected with two groups of sliding blocks at two ends of the detection conveying module;

[0008] The positioning mechanism further comprises a support block, a driving motor and a transmission belt, two groups of the screw rods are connected between the two sides of the first frame through the support block, one side of the two groups of transmission belts is drivingly connected through the transmission belt, and one side of one group of the screw rods is provided with the driving motor;

[0009] The main body is internally provided with a screen correction mechanism, the screen correction mechanism comprises a pushing wheel, the pushing wheel is at the back of the product and plays a role in adjusting the angle of the product, the screen correction mechanism further comprises a sliding table module and a connecting frame, the sliding table module is fixed in the first frame, the connecting frame is below the sliding table module and is in sliding connection therebetween, and the connecting frame is movably connected with a plurality of pushing wheels at the tail end;

[0010] The main body is internally provided with a screen correction mechanism, the screen correction mechanism comprises a pushing wheel, the pushing wheel is at the back of the product and plays a role in adjusting the angle of the product, the screen correction mechanism further comprises a sliding table module and a connecting frame, the sliding table module is fixed in the first frame, the connecting frame is below the sliding table module and is in sliding connection therebetween, and the connecting frame is movably connected with a plurality of pushing wheels at the tail end;

[0011] The AOI visual detection mechanism further comprises a moving module and a sliding plate, the moving module is fixed in the second frame, the sliding plate is below the moving module and is in sliding connection therebetween, and the AOI detection module is fixed on the top of the sliding plate;

[0012] The main body is internally provided with a screen correction mechanism, the screen correction mechanism comprises a pushing wheel, the pushing wheel is at the back of the product and plays a role in adjusting the angle of the product, the screen correction mechanism further comprises a sliding table module and a connecting frame, the sliding table module is fixed in the first frame, the connecting frame is below the sliding table module and is in sliding connection therebetween, and the connecting frame is movably connected with a plurality of pushing wheels at the tail end;

[0013] By adopting the technical scheme, the front-end equipment is used to ensure stable supply of the to-be-tested screen, product code scanning is used to accurately obtain product information for traceability and personalized detection, the positioning mechanism and the screen correction mechanism work cooperatively to accurately determine and correct the screen position and angle, to provide an accurate basis for subsequent detection, the camera light source module can be moved and parameters adjusted as needed to obtain clear and accurate images, the knocking module switches pictures to stimulate different display characteristics of the screen, and comprehensive detection is performed, after the camera takes pictures, the image processing unit analyzes the images through a complex algorithm to accurately determine light leakage, defects and black frame conditions, and timely alarm and record are given when an abnormality occurs, and the product successfully enters the next link when it is qualified, the whole detection process is closely connected and cooperatively efficient, the overall efficiency and accuracy of detection are further improved, reliable overall protection is provided for notebook screen quality, and the overall quality and user experience of the notebook computer are improved.

[0014] Further, the main body is provided with an input line and an output line at two ends respectively, the output line is arranged obliquely, and the input line and the output line are provided with driving modules and output belts respectively.

[0015] By adopting the technical scheme, the input line is connected with the detection conveying module, the to-be-tested product is accurately conveyed to the detection area, and the product after detection is orderly output through the output line, so that the product detection process is automated, and the overall detection efficiency is improved.

[0016] To sum up, the utility model mainly has the following beneficial effects: the utility model through front-end equipment to ensure stable supply of the to-be-tested screen, product code scanning is used to accurately obtain product information for traceability and personalized detection, the positioning mechanism and the screen correction mechanism work cooperatively to accurately determine and correct the screen position and angle, to provide an accurate basis for subsequent detection, the camera light source module can be moved and parameters adjusted as needed to obtain clear and accurate images, the knocking module switches pictures to stimulate different display characteristics of the screen, and comprehensive detection is performed, after the camera takes pictures, the image processing unit analyzes the images through a complex algorithm to accurately determine light leakage, defects and black frame conditions, and timely alarm and record are given when an abnormality occurs, and the product successfully enters the next link when it is qualified, the whole detection process is closely connected and cooperatively efficient, the overall efficiency and accuracy of detection are further improved, reliable overall protection is provided for notebook screen quality, and the overall quality and user experience of the notebook computer are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole first visual angle structure schematic diagram of the utility model;

[0018] Figure 2 It is a whole internal structure schematic diagram of the utility model;

[0019] Figure 3Part structure schematic view of the utility model;

[0020] Figure 4 Part structure enlarged view of the utility model;

[0021] Figure 5 Part structure enlarged view of the utility model;

[0022] Figure 6 Part structure enlarged view of the utility model;

[0023] Figure 7 Part structure enlarged view of the utility model first frame;

[0024] Figure 8 Part structure enlarged view of the utility model second frame;

[0025] Figure 9 Part structure enlarged view of the utility model AOI vision detection mechanism;

[0026] Figure 10 Part structure enlarged view of the utility model screen correction mechanism;

[0027] Figure 11 Part structure enlarged view of the utility model knock mechanism;

[0028] Figure 12 Second perspective structure schematic view of the utility model whole.

[0029] In the drawing: 1, main body;2, first frame;3, second frame;4, detection conveying module;5, positioning mechanism;501, support block;502, screw;503, drive motor;504, sliding block;505, transmission belt;506, positioning rod;6, screen correction mechanism;601, sliding table module;602, connecting frame;603, push wheel;7, AOI vision detection mechanism;701, movement module;702, sliding plate;703, AOI detection module;8, knock mechanism;801, fixed plate;802, rotary cylinder;803, rotating rod;804, knock head;9, product;10, feeding input line;11, discharging output line. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the utility model and cannot be understood as limiting the utility model.

[0031] The embodiments will be described below according to the overall structure of the utility model.

[0032] Embodiment one

[0033] A product visual inspection device, such as Figures 1-12 As shown, the product visual inspection device mainly consists of a main body 1, a first frame 2, a second frame 3, a detection 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, an input feeding line 10 and an output discharging line 11, etc.

[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 and serve to support and install other components. The detection conveying module 4 is used to convey the product 9 and is fixed inside the first frame 2. The input feeding line 10 and the output discharging line 11 are located at both ends of the main body 1 and are responsible for the input and output of the product 9. The output discharging line 11 is placed obliquely, and both the input feeding line 10 and the output discharging line 11 contain driving modules and output belts. The driving modules drive the output belts to realize the conveying of the product 9.

[0035] The positioning mechanism 5 includes support blocks 501, lead screws 502, drive motors 503, sliding blocks 504, transmission belts 505 and positioning rods 506. Two groups of lead screws 502 are connected to the first frame 2 through the support blocks 501 on both sides. The sliding blocks 504 are threadedly connected to the lead screws 502. The positioning rods 506 are located above the detection conveying module 4 and are fixedly connected to the sliding blocks 504 at both ends. One side of one group of lead screws 502 is provided with a drive motor 503. The two groups of lead screws 502 are transmissionally connected through the transmission belts 505. During operation, the drive motor 503 drives the lead screws 502 to rotate, and the sliding blocks 504 move the positioning rods 506, thereby realizing the positioning of the product 9 during conveying.

[0036] Specifically, with the movement of the sliding blocks 504, the positioning rods 506 can accurately position the product 9 on the detection conveying module 4, ensuring that the product 9 is in the correct position during subsequent detection steps, effectively reducing detection errors caused by product position deviation and improving detection accuracy.

[0037] The screen correction mechanism 6 consists of a sliding table module 601, a connecting frame 602 and a plurality of push wheels 603. The sliding table module 601 is fixed inside the first frame 2. The connecting frame 602 is located below the sliding table module 601 and is slidingly connected thereto. The connecting frame 602 is movably connected to the plurality of push wheels 603 at the end. When the product 9 reaches the designated position, the sliding table module 601 moves the connecting frame 602, causing the push wheels 603 to contact the back of the product 9 and adjust the angle of the product 9, ensuring that the product 9 is at the correct angle during detection.

[0038] The push wheels 603 are made of soft material with certain friction, which can effectively push the product 9 to adjust the angle without causing damage to the product 9.

[0039] Through the rotation and position adjustment of the push wheel 603, fine correction of the angle of the product 9 is realized, so that the screen of the product 9 can face the AOI visual detection mechanism 7 in the best posture, which helps to improve the detection accuracy and ensure the reliability of the detection result;

[0040] The AOI visual detection mechanism 7 comprises a moving module 701, a sliding plate 702 and an AOI detection module 703. The moving module 701 is fixed inside the second frame 3. The sliding plate 702 is located below the moving module 701 and is in sliding connection with the moving module 701. The AOI detection module 703 is fixed on the top of the sliding plate 702. The position of the AOI detection module 703 can be adjusted by the moving module 701, so that it can detect the screen on the front of the product 9 in all directions and obtain clear and accurate images, so as to detect whether there are defects such as light leakage, black spots, black lines, bright spots and bright lines on the screen;

[0041] Specifically, the AOI detection module 703 uses its high-precision visual detection technology to take pictures of 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 and display state changes of the screen. Then, through complex internal image processing algorithms, it analyzes the images and detects whether there are defects such as light leakage, black spots, black lines, bright spots and bright lines on the screen, as well as evaluates the clarity and accuracy of the screen display and other indicators. Its high-precision detection capability effectively reduces the misjudgment rate and ensures the accuracy of the detection result;

[0042] The knocking mechanism 8 comprises a fixed plate 801, a rotary air cylinder 802, a rotating rod 803 and a knocking head 804. The fixed plate 801 is fixed on the second frame 3. The rotary air cylinder 802 is fixed on the fixed plate 801. The rotating rod 803 is fixed on the output end of the rotary air cylinder 802. The knocking head 804 is connected with the end of the rotating rod 803 and is adjustably connected by bolts. The rotary air cylinder 802 drives the rotating rod 803 to rotate, so that the knocking head 804 knocks the keyboard of the product 9, switches the screen picture, excites the different display characteristics of the screen, and facilitates more comprehensive detection of the screen quality;

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

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

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

[0046] The moving module 701 of the AOI visual detection mechanism 7 adjusts the position of the AOI detection module 703, detects the screen of the product 9, obtains an image, and then analyzes the image through a complex algorithm by the image processing unit, so as to judge whether the screen has light leakage, defects, black frame abnormalities and the like;

[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, switches the screen picture, and then visual detection is carried out again, so as to ensure that the screen quality is comprehensively detected;

[0048] The product 9 that passes the detection is output through the output line 11 and enters the next link; if an abnormality is detected, an alarm is given in time and relevant information is recorded.

[0049] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make modifications, replacements and variations and the like of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A product visual inspection apparatus comprising a main body (1) and a product (9), characterized in that: The body (1) is internally provided with a detection conveying module (4) at the middle position, and the bottom of the detection conveying module (4) is provided with a positioning mechanism (5); The positioning mechanism (5) comprises a lead screw (502), a sliding block (504) and a positioning rod (506), the sliding block (504) and the lead screw (502) are in threaded connection, the positioning rod (506) is located above the detection conveying module (4), and the two ends of the positioning rod (506) are fixedly connected with two groups of sliding blocks (504) located at the two ends of the detection conveying module (4), the body (1) is internally provided with a screen correction mechanism (6), and the screen correction mechanism (6) comprises a push wheel (603), the push wheel (603) is located at the back of the product (9) to play a role in adjusting the angle thereof; The body (1) is internally provided with an AOI visual detection mechanism (7) at a position away from the screen correction mechanism (6), and the AOI visual detection mechanism (7) comprises an AOI detection module (703), and the AOI detection module (703) is located on the front of the product (9) to play a role in detecting the screen thereof, the body (1) is internally provided with a knocking mechanism (8) at one end, and the knocking mechanism (8) comprises a knocking head (804), and the knocking head (804) is located at one end of the product (9) to play a role in knocking the keyboard thereof.

2. The product visual inspection apparatus of claim 1, wherein: The body (1) is internally provided with a first frame (2), and the first frame (2) is internally provided with a second frame (3), and the detection conveying module (4) is fixed in the first frame (2).

3. The product visual inspection apparatus of claim 2, wherein: The positioning mechanism (5) further comprises a support block (501), a driving motor (503) and a transmission belt (505), two groups of the lead screws (502) are connected between the first frame (2) through the support block (501), two groups of the transmission belts (505) are drivingly connected between one side of the transmission belts (505), and one side of one group of the lead screws (502) is provided with the driving motor (503).

4. The product visual inspection apparatus of claim 2, wherein: The screen correction mechanism (6) further comprises a sliding table module (601) and a connecting frame (602), the sliding table module (601) is fixed in the first frame (2), the connecting frame (602) is located below the sliding table module (601) and is in sliding connection therebetween, and a plurality of push wheels (603) are movably connected to the end of the connecting frame (602).

5. The product visual inspection apparatus of claim 2, wherein: The AOI visual detection mechanism (7) further comprises a moving module (701) and a sliding plate (702), the moving module (701) is fixed in the second frame (3), the sliding plate (702) is located below the moving module (701) and is in sliding connection therebetween, and the AOI detection module (703) is fixed on the top of the sliding plate (702).

6. The product visual inspection apparatus of claim 2, wherein: The knocking mechanism (8) further comprises a fixing plate (801), a rotary air cylinder (802) and a rotating rod (803), the fixing plate (801) is fixed on the second frame (3), the rotary air cylinder (802) is fixed on the fixing plate (801), the rotating rod (803) is fixed on the output end of the rotary air cylinder (802), and the rotary air cylinder (802) drives the rotating rod (803) to rotate.

7. The product visual inspection apparatus of claim 6, wherein: The end of the rotating rod (803) and the knocking head (804) are connected with each other, and the knocking head (804) and the rotating rod (803) are adjustably connected through bolts.

8. The product visual inspection apparatus of claim 1, wherein: The main body (1) is provided with an input line (10) and an output line (11) at two ends respectively, and the output line (11) is placed obliquely.

9. The product visual inspection apparatus of claim 8, wherein: The input line (10) and the output line (11) both comprise a driving module and an output belt, and the driving module drives the output belt to convey the product (9).

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