LCD display screen feeding equipment with detection function

Abstract

The LCD screen feeding equipment with the detection function comprises a bottom plate, a detection box is fixedly connected to the upper side of the bottom plate, the left side and the right side of the detection box are open, a first motor is fixedly connected to the upper side of the bottom plate, and a threaded rod is fixedly connected to an output shaft of the first motor; one end of the threaded rod is rotatably connected with a fixing plate, the fixing plate is fixedly connected to the upper side of the bottom plate, the side wall of the detection box is fixedly connected with an air outlet nozzle, the threaded rod is connected with the air outlet nozzle through an air guide device, and the threaded rod is in threaded connection with a moving table. According to the invention, shooting detection can be carried out on the LCD display screen in a surrounding rotation manner, the situation of missing detection due to light refraction in the detection process is avoided, dust on the surface of the LCD display screen is blown away in the conveying process, and the situation that subsequent camera shooting detection is affected due to dust on the surface of the display screen to be detected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of LCD display screen detection, and in particular to an LCD display screen feeding device with a detection function. Background Art

[0002] During the production process of LCD display screens, since the display screens are made of glass, it is inevitable that the glass of the display screen will be bumped or scratched during the production and assembly process, which makes the glass of the display screen prone to cracks and scratches. Therefore, it is necessary to inspect the display screen before feeding. At present, the inspection method for cracks and scratches on the display screen is often through manual observation and inspection with the help of equipment such as a magnifying glass. This manual inspection method has inaccurate inspection results on the one hand, and on the other hand, the inspection efficiency cannot be well controlled, which reduces the production efficiency of the display screen;

[0003] Although there is an existing method of taking pictures of display screens with detection cameras and detecting whether there are cracks and scratches through data analysis, the existing shooting detection often takes pictures of the display screen at a fixed position. Due to the refraction and reflection of light on the glass surface of the display screen, as well as the uncertainty of the locations of cracks and scratches, the display screen cannot be fully inspected during the shooting detection, which is easy to miss the inspection, thereby reducing product quality. Summary of the invention

[0004] The present invention provides an LCD display screen feeding device with a detection function to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A feeding device for an LCD display screen with a detection function comprises a bottom plate, a detection box is fixedly connected to the upper side of the bottom plate, the left and right sides of the detection box are open, a first motor is fixedly connected to the upper side of the bottom plate, a threaded rod is fixedly connected to the output shaft of the first motor, one end of the threaded rod is rotatably connected to a fixed plate, the fixed plate is fixedly connected to the upper side of the bottom plate, an air outlet is fixedly connected to the side wall of the detection box, the threaded rod is connected to the air outlet through an air guide device, a mobile platform is threadedly connected to the threaded rod, a liquid guide clamping device is provided on the mobile platform, a rotating shaft is rotatably connected to the inner top side wall of the detection box, a turntable is fixedly connected to the bottom end of the rotating shaft, a camera is fixedly connected to the bottom side wall of the turntable, a first gear is fixedly connected to the rotating shaft, a second motor is fixedly connected to the inner top side wall of the detection box, a second gear is fixedly connected to the output shaft of the second motor, the second gear is meshed with the first gear, the second gear is half-toothed and half-smooth, and a proximity sensor is provided on the side wall of the bottom plate below the detection box.

[0007] As a further improvement of the present technical solution: the air guide device includes a conical shell, the bottom side wall of the conical shell is fixedly connected with a connecting plate, the bottom side of the connecting plate is fixedly connected to the bottom plate by two fixing columns, a plurality of through holes are opened on the side wall of the connecting plate, a driving shaft is rotatably connected through the side wall of the through hole, the upper end of the driving shaft is fixedly connected with fan blades, the fan blades are rotatably connected in the conical shell, the top air outlet of the conical shell is connected to the air outlet nozzle through an air guide pipe, the bottom end of the driving shaft is fixedly connected with a second bevel gear, the side wall of the second bevel gear is meshed with a first bevel gear, and the first bevel gear is fixedly connected to the threaded rod.

[0008] The cam is provided with a plurality of guide rails, each of which is provided with a plurality of guide rails, each of which is provided with a plurality of guide rails, each of which is provided with a plurality of guide rails.

[0009] As a further improvement of the technical solution: the second gear rotates one circle, which can drive the first gear to rotate 90 degrees and rest for a period of time.

[0010] As a further improvement of the technical solution: the air outlet nozzle is arranged to be inclined downward.

[0011] As a further improvement of the technical solution: it also includes a crack and scratch recognition model, and the crack and scratch recognition model is used to identify whether there are cracks and scratches in the display screen photos taken by the camera.

[0012] As a further improvement of this technical solution: the steps of constructing the crack and scratch recognition model are as follows:

[0013] S1: Obtain a large number of image samples of display screens with cracks and scratches;

[0014] S2: Annotate the cracks and scratches on the display screen in the image sample to obtain annotated image samples;

[0015] S3: Based on the labeled image samples and annotation information, a crack and scratch recognition model is trained.

[0016] As a further improvement of the present technical solution: the crack and scratch recognition model is a model obtained by a Mask R-CNN deep learning network.

[0017] As a further improvement of the technical solution: during training, the input information is divided into a prediction set and a training set. After the training, the validity of the model is verified in the test set. If the verification fails, the S-threaded rod is used to add more labeled data; if the verification passes, the training ends.

[0018] As a further improvement of this technical solution: the use steps of the LCD display screen feeding device are as follows:

[0019] In the first step, the first motor drives the threaded rod to rotate forward and backward to drive the moving platform to move left and right along the threaded rod. First, the moving platform is placed close to the side of the first motor, and then the LCD display screen to be tested and loaded is placed on the placement plate on the upper side of the moving platform. The placement plate is pressed by the pressure of the LCD display screen and presses the piston plate downward through the sliding rod, so that the piston plate allows the pressure-conducting liquid in the liquid storage chamber to enter the fixed cylinder through the four diversion channels to squeeze the four piston blocks. The four piston blocks are pressed and drive the four clamping plates to clamp on the four side walls of the LCD display screen through the moving rod, so that the LCD display screen remains stable.

[0020] In the second step, the moving platform is driven along the threaded rod into the detection box. During the rotation of the threaded rod, the driving shaft can be driven to rotate through the first bevel gear and the second bevel gear. The rotation of the driving shaft drives the fan blades to rotate. The rotation of the fan blades can compress the external air and spray it out from the air outlet nozzle through the air guide pipe. The airflow sprayed from the air outlet nozzle can blow away the dust on the surface of the LCD screen passing by.

[0021] The third step is that when the mobile platform enters the detection box and is detected by the proximity sensor, the first motor is stopped. At this time, the mobile platform is directly below the turntable. Then the second motor can be started to drive the second gear to rotate four times. The rotation of the first gear can drive the turntable and the camera below the turntable to rotate. When the second gear rotates one circle, it can drive the first gear to rotate 90 degrees and stop for a period of time. During the stop time, the camera can take pictures of the LCD display screen above the mobile platform. When the second gear rotates four times, the camera can be located in the four directions of the LCD display screen to take pictures, and the display screen photos are sent to the crack and scratch recognition model to detect whether there are cracks and scratches.

[0022] The fourth step is to drive the threaded rod to rotate after the photo inspection is completed, so that the mobile platform drives the LCD display screen to move out of the inspection box from the side close to the fixed plate for subsequent processing to complete the loading of the LCD display screen.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is reasonably designed and can perform shooting detection by rotating the LCD display screen in four directions, thereby avoiding missed detection due to light refraction during the detection process. At the same time, during the transportation process, dust on the surface of the LCD display screen is blown away, thereby avoiding dust on the surface of the display screen to be detected, thereby affecting subsequent camera shooting detection.

[0025] 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 and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the three-dimensional structure of an LCD display screen feeding device with a detection function proposed by the present invention;

[0028] Figure 2 This is a front cross-sectional structural schematic diagram of an LCD display screen feeding device with a detection function proposed by the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the upper side of the turntable in the present invention;

[0030] Figure 4 It is a schematic diagram of the front cross-sectional structure of the mobile station in the present invention;

[0031] Figure 5 It is a structural schematic diagram of a mobile station in the present invention;

[0032] Figure 6 for Figure 2 Schematic diagram of the locally enlarged structure of A in the middle.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Fixed plate; 2. Threaded rod; 3. Proximity sensor; 4. Bottom plate; 5. Moving platform; 6. Liquid storage chamber; 7. First motor; 8. Placement plate; 9. Air duct; 10. Air outlet nozzle; 11. Turntable; 12. First gear; 13. Rotating shaft; 14. Second gear; 15. Second motor; 16. Detection box; 17. Camera; 18. Sliding rod; 19. Clamping plate; 20. Moving rod; 21. Reset spring; 22. Piston block; 23. Fixed cylinder; 24. Diversion channel; 25. Piston plate; 26. Fan blades; 27. Conical shell; 28. Connecting plate; 29. ​​Through hole; 30. Drive shaft; 31. Second bevel gear; 32. Fixed column; 33. First bevel gear. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0036] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] See also Figures 1 to 6In an embodiment of the present invention, a feeding device for an LCD display screen with a detection function includes a bottom plate 4, a detection box 16 is fixedly connected to the upper side of the bottom plate 4, and the left and right sides of the detection box 16 are set to be open. A first motor 7 is fixedly connected to the upper side of the bottom plate 4, and a threaded rod 2 is fixedly connected to the output shaft of the first motor 7. One end of the threaded rod 2 is rotatably connected to a fixed plate 1, and the fixed plate 1 is fixedly connected to the upper side of the bottom plate 4. An air outlet nozzle 10 is fixedly connected to the side wall of the detection box 16, and the air outlet nozzle 10 is set to be inclined downward. The threaded rod 2 is connected to the air outlet nozzle 10 through an air guide device, and the air guide device includes a conical shell 27, and the conical shell A connecting plate 28 is fixedly connected to the bottom side wall of 27, and the bottom side of the connecting plate 28 is fixedly connected to the bottom plate 4 through two fixing columns 32. A plurality of through holes 29 are opened on the side wall of the connecting plate 28, and a driving shaft 30 is rotatably connected to the side wall of the through hole 29, and a fan blade 26 is fixedly connected to the upper end of the driving shaft 30, and the fan blade 26 is rotatably connected in the conical shell 27, and the top air outlet of the conical shell 27 is connected to the air outlet nozzle 10 through the air guide pipe 9, and a second bevel gear 31 is fixedly connected to the bottom end of the driving shaft 30, and a first bevel gear 33 is meshed and connected to the side wall of the second bevel gear 31, and the first bevel gear 33 is fixedly connected to the threaded rod 2;

[0039] A movable platform 5 is threadedly connected to the threaded rod 2, and a liquid guiding clamping device is provided on the movable platform 5. The liquid guiding clamping device includes a liquid storage chamber 6, and the liquid storage chamber 6 is opened in the movable platform 5. A piston plate 25 is slidably connected in the liquid storage chamber 6, and a sliding rod 18 is fixedly connected to the upper side of the piston plate 25. The sliding rod 18 penetrates the upper side wall of the liquid storage chamber 6 and extends out of the upper side of the movable platform 5 and is fixedly connected to a placement plate 8. Four guide channels 24 are respectively opened on the surrounding side walls of the liquid storage chamber 6. The liquid storage chamber 6 and the guide channels 24 are filled with pressure guiding liquid. Four fixed cylinders 23 are respectively fixedly connected to the four sides of the upper side of the movable platform 5. The guide channels 24 are respectively connected to the four fixed cylinders 23, each fixed cylinder 23 is slidably connected with a piston block 22, the side wall of the piston block 22 is fixedly connected with a moving rod 20, the moving rod 20 passes through the side wall of one end of the fixed cylinder 23, a return spring 21 is fixedly connected between the piston block 22 and the side wall of one end of the fixed cylinder 23, the return spring 21 is sleeved on the moving rod 20, one end of the moving rod 20 is fixedly connected with a clamping plate 19, the four clamping plates 19 are respectively located around the placement plate 8, the second gear 14 rotates one circle, which can drive the first gear 12 to rotate 90 degrees and stop for a period of time;

[0040] A rotating shaft 13 is rotatably connected to the inner top side wall of the detection box 16, a turntable 11 is fixedly connected to the bottom end of the rotating shaft 13, a camera 17 is fixedly connected to the bottom side wall of the turntable 11, a first gear 12 is fixedly connected to the rotating shaft 13, a second motor 15 is fixedly connected to the inner top side wall of the detection box 16, a second gear 14 is fixedly connected to the output shaft of the second motor 15, the second gear 14 is meshingly connected to the first gear 12, half of the second gear 14 has teeth and half is smooth, and a proximity sensor 3 is provided on the side wall of the bottom plate 4 below the detection box 16.

[0041] The present invention also includes a crack and scratch recognition model, which is used to identify whether the display screen photo taken by the camera 17 has cracks and scratches.

[0042] The steps for building the crack and scratch recognition model are as follows:

[0043] S1: Obtain a large number of image samples of display screens with cracks and scratches;

[0044] S2: Annotate the cracks and scratches on the display screen in the image sample to obtain annotated image samples;

[0045] S3: Based on the annotated image samples and annotation information, a crack and scratch recognition model is trained, wherein the crack and scratch recognition model is a model obtained by a Mask R-CNN deep learning network;

[0046] During training, the input information is divided into a prediction set and a training set. After the training, the effectiveness of the model is verified in the test set. If the verification fails, it is transferred to S threaded rod 2 to add more labeled data; if the verification passes, the training ends.

[0047] The steps for using the LCD display feeding equipment are as follows:

[0048] In the first step, the first motor 7 drives the threaded rod 2 to rotate forward and backward to drive the moving platform 5 to move left and right along the threaded rod 2. First, the moving platform 5 is placed close to the side of the first motor 7, and then the LCD display screen to be tested and loaded is placed on the placement plate 8 on the upper side of the moving platform 5. The placement plate 8 is subjected to the pressure of the LCD display screen and presses the piston plate 25 downward through the sliding rod 18, so that the piston plate 25 allows the pressure-conducting liquid in the liquid storage chamber 6 to enter the fixed cylinder 23 through the four guide channels 24 to squeeze the four piston blocks 22. The four piston blocks 22 are pressed and drive the four clamping plates 19 to clamp on the four side walls of the LCD display screen through the moving rod 20, so that the LCD display screen remains stable.

[0049] In the second step, the moving platform 5 is driven along the threaded rod 2 into the detection box 16. During the rotation of the threaded rod 2, the driving shaft 30 can be driven to rotate through the first bevel gear 33 and the second bevel gear 31. The rotation of the driving shaft 30 drives the fan blades 26 to rotate. The rotation of the fan blades 26 can compress the external air and spray it out from the air outlet nozzle 10 through the air guide pipe 9. The airflow sprayed from the air outlet nozzle 10 can blow away the dust on the surface of the LCD display screen passing by;

[0050] The third step is that when the mobile platform 5 enters the detection box 16 and is detected by the proximity sensor 3, the first motor 7 is stopped. At this time, the mobile platform 5 is located directly below the turntable 11. Then the second motor 15 can be started to drive the second gear 14 to rotate four times. The rotation of the first gear 12 can drive the turntable 11 and the camera 17 below the turntable 11 to rotate. When the second gear 14 rotates one circle, it can drive the first gear 12 to rotate 90 degrees and stop for a period of time. During the stop time, the camera 17 can take pictures of the LCD display screen above the mobile platform 5. Then, when the second gear 14 rotates four times, the camera 17 can be located in the four directions of the LCD display screen to take pictures, and the pictures of the display screen are sent to the crack and scratch recognition model to detect whether there are cracks and scratches.

[0051] In the fourth step, after the photo detection is completed, the threaded rod 2 is driven to rotate, so that the moving platform 5 drives the LCD display screen to move out of the detection box 16 from the side close to the fixed plate 1 for subsequent processing to complete the loading of the LCD display screen.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. An LCD display screen feeding device with a detection function, comprising a bottom plate (4), characterized in that: The upper side of the bottom plate (4) is fixedly connected to a detection box (16), and the left and right sides of the detection box (16) are open. The upper side of the bottom plate (4) is fixedly connected to a first motor (7), and the output shaft of the first motor (7) is fixedly connected to a threaded rod (2), one end of the threaded rod (2) is rotatably connected to a fixed plate (1), and the fixed plate (1) is fixedly connected to the upper side of the bottom plate (4). An air outlet nozzle (10) is fixedly connected to the side wall of the detection box (16), and the threaded rod (2) is connected to the air outlet nozzle (10) through an air guide device. A movable platform (5) is threadedly connected to the threaded rod (2), and a liquid guide clamping device is provided on the movable platform (5). A rotating shaft (13) is rotatably connected to the inner top side wall of the detection box (16); a rotating disk (11) is fixedly connected to the bottom end of the rotating shaft (13); a camera (17) is fixedly connected to the bottom side wall of the rotating disk (11); a first gear (12) is fixedly connected to the rotating shaft (13); a second motor (15) is fixedly connected to the inner top side wall of the detection box (16); an output shaft of the second motor (15) is fixedly connected to a second gear (14); the second gear (14) is meshingly connected to the first gear (12); the second gear (14) is half toothed and half smooth; a proximity sensor (3) is provided on the side wall of the bottom plate (4) below the detection box (16).

2. The LCD display screen feeding device with detection function according to claim 1 is characterized in that: The air guide device comprises a conical shell (27), the bottom side wall of the conical shell (27) is fixedly connected with a connecting plate (28), the bottom side of the connecting plate (28) is fixedly connected to the bottom plate (4) through two fixing columns (32), a plurality of through holes (29) are opened on the side wall of the connecting plate (28), a driving shaft (30) is rotatably connected through the side wall of the through hole (29), the upper end of the driving shaft (30) is fixedly connected with a fan blade (26), the fan blade (26) is rotatably connected in the conical shell (27), the top air outlet of the conical shell (27) is connected to the air outlet nozzle (10) through an air guide pipe (9), the bottom end of the driving shaft (30) is fixedly connected with a second bevel gear (31), the side wall of the second bevel gear (31) is meshedly connected with a first bevel gear (33), and the first bevel gear (33) is fixedly connected to the threaded rod (2).

3. The LCD display screen feeding device with detection function according to claim 2 is characterized in that: The liquid guiding clamping device comprises a liquid storage chamber (6), the liquid storage chamber (6) is arranged in the movable platform (5), a piston plate (25) is slidably connected in the liquid storage chamber (6), a sliding rod (18) is fixedly connected to the upper side of the piston plate (25), the sliding rod (18) passes through the upper side wall of the liquid storage chamber (6), extends out of the upper side of the movable platform (5) and is fixedly connected to a placement plate (8), four guiding channels (24) are respectively arranged on the surrounding side walls of the liquid storage chamber (6), the liquid storage chamber (6) and the guiding channels (24) are both filled with pressure guiding liquid, and four fixed cylinders (23) are respectively fixedly connected to the four sides of the upper side of the movable platform (5) The four guide channels (24) are respectively connected to the four fixed cylinders (23); a piston block (22) is slidably connected in each of the fixed cylinders (23); a moving rod (20) is fixedly connected to the side wall of the piston block (22); the moving rod (20) passes through the side wall of one end of the fixed cylinder (23); a return spring (21) is fixedly connected between the piston block (22) and the side wall of one end of the fixed cylinder (23); the return spring (21) is sleeved on the moving rod (20); one end of the moving rod (20) is fixedly connected to a clamping plate (19); the four clamping plates (19) are respectively located around the placement plate (8).

4. The LCD display screen feeding device with detection function according to claim 3 is characterized in that: The second gear (14) rotates one circle, which can drive the first gear (12) to rotate 90 degrees and rest for a period of time.

5. The LCD display screen feeding device with detection function according to claim 4 is characterized in that: The air outlet nozzle (10) is arranged to be inclined downward.

6. The LCD display screen feeding device with detection function according to claim 5, characterized in that: It also includes a crack and scratch recognition model, which is used to recognize whether cracks and scratches exist in the display screen photo taken by the camera (17).

7. The LCD display screen feeding device with detection function according to claim 6, characterized in that: The steps for constructing the crack and scratch identification model are as follows: S1: Obtain a large number of image samples of display screens with cracks and scratches; S2: Annotate the cracks and scratches on the display screen in the image sample to obtain annotated image samples; S3: Based on the labeled image samples and annotation information, a crack and scratch recognition model is trained.

8. The LCD display screen feeding device with detection function according to claim 7, characterized in that: The crack and scratch recognition model is a model obtained by the Mask R-CNN deep learning network.

9. The LCD display screen feeding device with detection function according to claim 8, characterized in that: During training, the input information is divided into a prediction set and a training set. After the training is completed, the validity of the model is verified in the test set. If the verification fails, the S-thread rod (2) is turned to add more labeled data; If the verification passes, the training ends.

10. The LCD display screen feeding device with detection function according to claim 9, characterized in that: The steps for using the LCD display feeding equipment are as follows: In the first step, the first motor (7) drives the threaded rod (2) to rotate forward and backward to drive the moving platform (5) to move left and right along the threaded rod (2). First, the moving platform (5) is placed close to the side of the first motor (7), and then the LCD display screen to be tested is placed on the placement plate (8) on the upper side of the moving platform (5). The placement plate (8) is subjected to the pressure of the LCD display screen and presses the piston plate (25) downward through the sliding rod (18), so that the piston plate (25) allows the pressure-conducting liquid in the liquid storage chamber (6) to enter the fixed cylinder (23) through the four guide channels (24) to squeeze the four piston blocks (22). The four piston blocks (22) are pressed and drive the four clamping plates (19) to clamp on the four side walls of the LCD display screen through the moving rod (20), so that the LCD display screen remains stable. In the second step, the moving platform (5) is driven along the threaded rod (2) into the detection box (16). During the rotation of the threaded rod (2), the driving shaft (30) can be driven to rotate through the first bevel gear (33) and the second bevel gear (31). The rotation of the driving shaft (30) drives the fan blades (26) to rotate. The rotation of the fan blades (26) can compress the external air and spray it out from the air outlet nozzle (10) through the air guide pipe (9). The airflow sprayed from the air outlet nozzle (10) can blow away the dust on the surface of the LCD display screen passing by. The third step is that when the mobile platform (5) enters the detection box (16) and is detected by the proximity sensor (3), the first motor (7) stops driving. At this time, the mobile platform (5) is located directly below the turntable (11). Then, the second motor (15) can be started to drive the second gear (14) to rotate four times. The rotation of the first gear (12) can drive the turntable (11) and the camera (17) below the turntable (11) to rotate. When the second gear (14) rotates one circle, it can drive the first gear (12) to rotate 90 degrees and pause for a period of time. During the pause time, the camera (17) can take pictures of the LCD display screen above the mobile platform (5). Then, when the second gear (14) rotates four times, the camera (17) can be located in the four directions of the LCD display screen to take pictures, and the pictures of the display screen are sent to the crack and scratch recognition model to detect whether there are cracks and scratches. In the fourth step, after the photo detection is completed, the threaded rod (2) is driven to rotate, so that the moving platform (5) drives the LCD display screen to move out of the detection box (16) from the side close to the fixed plate (1) for subsequent processing, thereby completing the loading of the LCD display screen.

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