Liquid crystal display surface defect detection device

Abstract

The present invention belongs to the technical field of display screen detection, and specifically relates to a liquid crystal display screen surface defect detection device, including a main body component, the main body component includes a processing table component, a lifting component is arranged below the processing table component, a tilting component is arranged inside the processing table component, and a rotating component is arranged in the inner cavity of the tilting component; a detection component, the detection component includes a regulating component arranged above the processing table component, a shooting component is arranged below the regulating component, and a switching component is arranged at the bottom of the shooting component. The invention can realize automatic loading and unloading of the display screen during detection, and control the tilt or flipping of the display screen during the display screen detection process, and adjust the tilt angle of the display screen as needed, thereby improving the accuracy and comprehensiveness of the detection, and can also continuously adjust the part and angle of the display screen irradiated, and adjust the light source irradiating different spectra as needed to deal with different types of small damage.

Description

Technical Field

[0001] The invention belongs to the technical field of display screen detection, and in particular relates to a device for detecting surface defects of a liquid crystal display screen. Background Art

[0002] With the rapid development of liquid crystal display technology, liquid crystal display (LCD) has been widely used in televisions, computer monitors, smart phones, tablet computers and various intelligent terminal devices. Consumers have increasingly higher requirements for the quality of display screens, especially in terms of visual experience. Any tiny surface defects may affect the user's perception and use experience. For example, the Chinese patent application with publication number: CN118655077A discloses a non-destructive testing device for liquid crystal display screens. Through a reciprocating visual inspection mechanism, it can effectively expand the visual inspection range of industrial cameras, facilitate all-round inspection of the surface of the liquid crystal display screen body, and improve the non-destructive inspection effect of the liquid crystal display screen body; a display screen flipping mechanism is provided, which can effectively improve the flipping efficiency of the liquid crystal display screen body, and it is not easy to cause damage to the liquid crystal display screen body during the flipping process. It can perform double-sided non-destructive inspection on the liquid crystal display screen body, and improve the comprehensiveness of non-destructive inspection.

[0003] There are still some problems with such detection devices when they are used. First, the above detection devices rely on traditional visual inspection or simple light detection systems, which can usually only reveal relatively obvious defects, such as large stains or damage, but are difficult to effectively identify small scratches, slight color differences, and fine stains. Although these minor defects do not affect the overall display function, they are flaws that cannot be ignored under high quality requirements.

[0004] Secondly, the above detection device cannot realize automatic loading and unloading, and needs to rely on manual loading and unloading during the detection process. It is not only time-consuming and labor-intensive, but also easily affected by human factors, resulting in low detection efficiency and difficulty in ensuring consistency. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid crystal display screen surface defect detection device, which can realize automatic loading and unloading of the display screen during detection, and in the process of display screen detection, control the tilt or flipping of the display screen, and adjust the inclination angle of the display screen arbitrarily according to needs, so as to improve the accuracy and comprehensiveness of the detection, and can continuously adjust the part and angle of the display screen irradiated, and adjust the light source of different spectra according to needs to deal with different types of small damage.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A liquid crystal display surface defect detection device comprises a main body component, the main body component comprises a processing table component, a lifting component is arranged below the processing table component, a tilting component is arranged inside the processing table component, and a rotating component is arranged in the inner cavity of the tilting component;

[0008] A detection component, the detection component includes a regulating component arranged above the processing table component, a shooting component is arranged below the regulating component, and a switching component is arranged at the bottom of the shooting component;

[0009] Among them, the lifting assembly is used to lift the display screen transported by the processing table assembly into the rotating assembly, the tilting assembly is used to drive the rotating assembly to tilt and flip, the rotating assembly is used to drive the display to rotate, the shooting assembly is used to detect defects on the surface of the display screen, the switching assembly is used to switch light sources of different spectra to illuminate the display screen, and the regulating assembly is used to adjust the orientation of the shooting assembly and the switching assembly.

[0010] In a preferred embodiment, the processing table assembly includes a machine body, a chassis is fixedly connected to the bottom of the machine body, and a conveyor belt is arranged above the chassis.

[0011] In a preferred embodiment, the lifting assembly includes an electric guide rail fixedly mounted in the middle of the top surface of the chassis, an electric lifting rod is slidably connected to the inner cavity of the electric guide rail, and a rubber clamp is fixedly connected to the top end of the electric lifting rod.

[0012] In a preferred embodiment, the tilting assembly includes a tilting ring rotatably connected to the middle part of the machine body, the left end outer ring of the tilting ring is fixedly connected to a positioning ring, a motor is fixedly installed on the left side of the inner cavity of the machine body, the output shaft of the motor is fixedly connected to the left end of the tilting ring, an electric push rod is fixedly installed on the left side of the inner cavity of the machine body, a positioning block is fixedly connected to the output end of the electric push rod, the rear side of the positioning block is movably clamped in the outer ring of the positioning ring, a power supply ring is fixedly installed on the right side of the inner cavity of the machine body, and the right end of the tilting ring is in contact with the inner ring of the power supply ring.

[0013] In a preferred embodiment, the rotating component includes a swivel ring rotatably connected to the inner cavity of the tilting ring, the outer ring of the swivel ring is provided with a tooth groove, a motor 2 is fixedly installed on the right side of the top surface of the tilting ring, the output shaft of the motor 2 extends into the inner cavity of the tilting ring and is fixedly connected to a gear 1, the outer ring of the gear 1 is meshed in the tooth groove, and a mechanical claw is fixedly installed on the inner ring of the swivel ring.

[0014] In a preferred embodiment, the regulating component includes a bracket fixedly connected to the top surface of the body, a Y-axis moving platform is fixedly installed on the top of the bracket, an X-axis moving platform is slidably connected to the inner cavity of the Y-axis moving platform, and an electric push rod 2 is slidably connected to the inner cavity of the X-axis moving platform.

[0015] In a preferred embodiment, the shooting assembly includes a support fixedly mounted on the bottom surface of the second electric push rod, the bottom of the support is rotatably connected to a rotating rod, the left end of the rotating rod is hinged with a shaking rod, the top of the shaking rod is rotatably connected to the third electric push rod, the bottom end of the third electric push rod is rotatably connected to the left top of the rotating rod, the bottom end of the shaking rod is fixedly connected to a placement rack, the bottom surface of the placement rack is fixedly mounted with a camera, the top of the placement rack is electrically connected to a cable, and the top of the cable is electrically connected to the bottom surface of the rotating rod.

[0016] In a preferred embodiment, the switching assembly includes a protruding rod fixedly connected to the left side of the bottom surface of the placement frame, the outer ring of the protruding rod is rotatably connected to a rotating sleeve, the outer ring of the rotating sleeve is fixedly installed with a searchlight, and a slot is provided at one end of the searchlight extending into the inner cavity of the rotating sleeve, and a driving slot is provided on the rear side of the inner cavity of the rotating sleeve, a motor three is fixedly installed on the rear side of the protruding rod, the output shaft of the motor three extends into the inner cavity of the protruding rod and is fixedly connected to a gear two, the outer ring of the gear two extends out of the protruding rod and engages in the driving slot, an electric push rod four is fixedly installed on the top of the inner cavity of the protruding rod, the bottom end of the electric push rod four is fixedly connected to a plug, and the bottom end of the plug is electrically connected to the slot.

[0017] In a preferred embodiment, the placement rack has a built-in conductive device for supplying power to the camera and the plug.

[0018] In a preferred embodiment, the support has a built-in drive motor, and the output shaft of the drive motor is connected to the rotating rod.

[0019] The technical effects achieved by the present invention are:

[0020] The processing table assembly, lifting assembly and rotating assembly of the present invention can realize automatic loading and unloading of display screens during detection, thereby improving efficiency and stability; before detection, the conveying part of the processing table assembly conveys the display screen to the position of the lifting assembly, and then the clamping part of the lifting assembly clamps and fixes the display screen, and lifts the display screen to the clamping part of the rotating assembly, and then the clamping part of the rotating assembly fixes the display screen, and the lifting assembly is reset. After the display screen detection is completed, the clamping part of the lifting assembly rises, and then the rotating assembly releases the display screen, and then the lifting assembly is used to convey the detected display screen to the conveying part of the processing table assembly;

[0021] The tilting assembly and the rotating assembly of the present invention can control the tilting or flipping of the display screen during the detection of the display screen, and adjust the tilting angle of the display screen as required, thereby improving the accuracy and comprehensiveness of the detection; during the detection process, the driving part of the tilting assembly drives the rotating assembly to tilt or flip, thereby adjusting the tilting angle or flipping of the display, and then the positioning part of the tilting assembly fixes the tilting assembly to prevent the shaking of the rotating assembly from affecting the accuracy of the detection, and during the detection, the driving part of the rotating assembly can drive the entire rotating assembly to rotate, thereby driving the display screen to rotate, so that the tilting part of the display screen is adjusted, thereby improving the comprehensiveness of the detection;

[0022] The detection component of the present invention can continuously adjust the part and angle of the display screen illuminated during the detection process, and adjust the light source of different spectra according to needs to deal with different types of damage; during the detection process, the control part of the control component adjusts the movement of the shooting part and the switching part, continuously adjusts the part of the display screen to be detected, and takes pictures of the defective area. If precise detection is required, the driving part of the switching component can turn the lights of different spectra downward and supply power, so that the surface of the display screen is illuminated by lights of different spectra, thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the main components of the present invention;

[0025] Figure 3 is a schematic diagram of the position of the tilting component in the present invention;

[0026] Figure 4 is a cross-sectional schematic diagram of the tilting assembly in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the positioning block in the present invention;

[0028] Figure 6 is a cross-sectional schematic diagram of the rotating assembly in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the regulatory component in the present invention;

[0030] Figure 8 is a schematic diagram of the position of the shooting component in the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the shooting component in the present invention;

[0032] Fig.10 It is a structural schematic diagram of the switching component in the present invention;

[0033] Fig.11 is a cross-sectional schematic diagram of a switching assembly in the present invention;

[0034] Fig.12 It is a schematic diagram of the position of the plug in the present invention;

[0035] Fig.13 It is a structural schematic diagram of the rotating sleeve in the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 10. Main assembly; 11. Processing table assembly; 111. Machine body; 112. Chassis; 113. Conveyor belt; 12. Lifting assembly; 121. Electric guide rail; 122. Electric lifting rod; 123. Rubber splint; 13. Tilt assembly; 131. Tilt ring; 132. Positioning ring; 133. Motor 1; 134. Electric push rod 1; 135. Positioning block; 136. Power supply ring; 14. Rotating assembly; 141. Rotating ring; 142. Tooth groove; 143. Motor 2; 144. Gear 1; 145. Mechanical claw; 20. Detection assembly; 21. Control component; 211. Bracket; 212. Y-axis moving platform; 213. X-axis moving platform; 214. Electric push rod 2; 22. Shooting component; 221. Support; 222. Rotating rod; 223. Shaking rod; 224. Electric push rod 3; 225. Placement rack; 226. Camera; 227. Cable; 23. Switching component; 231. Protruding rod; 232. Rotating sleeve; 233. Searchlight; 234. Slot; 235. Drive slot; 236. Motor 3; 237. Gear 2; 238. Electric push rod 4; 239. Plug. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Please refer to the attached Figures 1 to 13 As shown, this embodiment provides a liquid crystal display surface defect detection device, including a main body component 10, the main body component 10 includes a processing table component 11, a lifting component 12 is arranged below the processing table component 11, a tilting component 13 is arranged inside the processing table component 11, and a rotating component 14 is arranged in the inner cavity of the tilting component 13;

[0043] The detection component 20 includes a control component 21 disposed above the processing table component 11, a shooting component 22 is disposed below the control component 21, and a switching component 23 is disposed at the bottom of the shooting component 22;

[0044] Among them, the lifting component 12 is used to lift the display screen transported by the processing table component 11 into the rotating component 14, the tilting component 13 is used to drive the rotating component 14 to tilt and flip, the rotating component 14 is used to drive the display to rotate, the shooting component 22 is used to detect defects on the surface of the display screen, the switching component 23 is used to switch light sources of different spectra to illuminate the display screen, and the control component 21 is used to adjust the orientation of the shooting component 22 and the switching component 23.

[0045] In this embodiment, before the screen is inspected, the conveying portion of the processing table assembly 11 conveys the display screen to the bottom of the rotating assembly 14, and then the lifting assembly 12 is started to clamp the display screen and slowly lift it to the center position of the rotating assembly 14. The rotating assembly 14 then clamps and fixes the display. Then the tilting assembly 13 starts to work, driving the rotating assembly 14 to rotate or flip, thereby controlling the tilt angle of the display screen to ensure stability during the inspection process. The rotating assembly 14 drives the display screen to rotate so that the inspection assembly 20 can fully scan every part of the display screen. The regulating portion of the regulating assembly 21 is used to adjust the precise position of the shooting assembly 22 to ensure that every detail of the surface of the display screen can be captured. If precise inspection is required, the switching assembly 23 can switch light sources of different spectra to meet different types of damage detection requirements.

[0046] During the inspection process, if a defect is found on the display screen surface, the camera component 22 will record the image of the defect and transmit it to the control system for analysis. Based on the image analysis results, the control system can determine the type, size and location of the defect, providing accurate data support for subsequent repair or replacement. The entire inspection process is highly automated, and the inspection efficiency and accuracy have been significantly improved.

[0047] Next, please refer to Figure 1 to Figure 2 The processing table assembly 11 includes a body 111, a chassis 112 is fixedly connected to the bottom of the body 111, and a conveyor belt 113 is arranged above the chassis 112;

[0048] The lifting assembly 12 includes an electric guide rail 121 fixedly mounted on the middle of the top surface of the chassis 112 , an electric lifting rod 122 is slidably connected to the inner cavity of the electric guide rail 121 , and a rubber clamp 123 is fixedly connected to the top of the electric lifting rod 122 .

[0049] It should be noted that a gap is provided in the middle of the conveyor belt 113 , and the rubber clamp 123 is placed in the gap so that the rubber clamp 123 can be clamped to the display.

[0050] In this embodiment, before the inspection, the conveyor belt 113 transports the display screen to the bottom of the body 111, and then the electric guide rail 121 drives the front and rear electric lifting rods 122 to approach each other, and the display is clamped and fixed by the rubber clamp 123, and then the electric lifting rod 122 is driven to rise and lift the display to the position of the rotating component 14. After the inspection is completed, the electric lifting rod 122 drives the rubber clamp 123 to rise and clamp the display. After the rotating component 14 releases the display, the display can be placed on the conveyor belt 113.

[0051] Next, please refer to Figures 3 to 6 The tilting assembly 13 includes a tilting ring 131 rotatably connected to the middle part of the body 111, a positioning ring 132 is fixedly connected to the outer ring of the left end of the tilting ring 131, a motor 133 is fixedly installed on the left side of the inner cavity of the body 111, and the output shaft of the motor 133 is fixedly connected to the left end of the tilting ring 131, an electric push rod 134 is fixedly installed on the left side of the inner cavity of the body 111, and a positioning block 135 is fixedly connected to the output end of the electric push rod 134, and the rear side of the positioning block 135 is movably connected to the outer ring of the positioning ring 132, and a power supply ring 136 is fixedly installed on the right side of the inner cavity of the body 111, and the right end of the tilting ring 131 is in contact with the inner ring of the power supply ring 136;

[0052] The rotating assembly 14 includes a swivel ring 141 rotatably connected to the inner cavity of the tilting ring 131, the outer ring of the swivel ring 141 is provided with a tooth groove 142, a motor 2 143 is fixedly installed on the right side of the top surface of the tilting ring 131, the output shaft of the motor 2 143 extends into the inner cavity of the tilting ring 131 and is fixedly connected to a gear 144, the outer ring of the gear 144 is meshed in the tooth groove 142, and a mechanical claw 145 is fixedly installed on the inner ring of the swivel ring 141.

[0053] It should be noted that the inner ring of the tilting ring 131 is provided with a contact power supply device, and the rotating ring 141 is also provided with a matching device, and the two sets of devices are contact-powered (not shown in the figure, and this is a common technical structure in the prior art, but no further description is given), so that the electric energy provided by the power supply ring 136 can be used to drive the mechanical claw 145 to operate;

[0054] The mechanical claw 145 can be extended and retracted to clamp displays of different sizes. At the same time, the outer ring of the clamping part of the mechanical claw 145 is wrapped with a soft rubber cover made of rubber non-slip material, which not only improves the clamping stability but also reduces damage to the surface of the display screen.

[0055] In this embodiment, after the electric lifting rod 122 lifts the display into the mechanical claw 145, the mechanical claw 145 operates to clamp and fix the display screen, and then the motor 133 drives the tilt ring 131 to rotate, and then drives the rotating ring 141 to rotate, so as to adjust the tilt angle of the display screen. Then the motor 2 143 drives the gear 144 to rotate, and drives the rotating ring 141 to rotate through the tooth groove 142, so as to achieve a 360-degree rotation scan of the display screen, thereby realizing the tilt or flipping of the display during detection, and adjusting the tilt position. The telescopic function of the mechanical claw 145 allows it to adapt to display screens of different sizes, and the soft rubber sleeve ensures that the display screen will not be scratched or damaged during the clamping process. The design of the entire device is intended to achieve efficient and accurate detection of surface defects of liquid crystal display screens, while ensuring the safety of the display screen during the detection process.

[0056] Next, please refer to Figures 7 to 13 The regulating component 21 includes a bracket 211 fixedly connected to the top surface of the body 111, a Y-axis moving platform 212 is fixedly installed on the top of the bracket 211, an X-axis moving platform 213 is slidably connected to the inner cavity of the Y-axis moving platform 212, and an electric push rod 214 is slidably connected to the inner cavity of the X-axis moving platform 213;

[0057] The shooting assembly 22 includes a support 221 fixedly mounted on the bottom surface of the electric push rod 214, the bottom of the support 221 is rotatably connected to a rotating rod 222, the left end of the rotating rod 222 is hinged with a shaking rod 223, the top of the shaking rod 223 is rotatably connected to an electric push rod 3 224, the bottom end of the electric push rod 3 224 is rotatably connected to the left top of the rotating rod 222, the bottom end of the shaking rod 223 is fixedly connected to a placement rack 225, the bottom surface of the placement rack 225 is fixedly mounted with a camera 226, the top of the placement rack 225 is electrically connected to a cable 227, and the top of the cable 227 is electrically connected to the bottom surface of the rotating rod 222;

[0058] The switching assembly 23 includes a protruding rod 231 fixedly connected to the left side of the bottom surface of the placement frame 225, the outer ring of the protruding rod 231 is rotatably connected to a rotating sleeve 232, the outer ring of the rotating sleeve 232 is fixedly installed with a searchlight 233, and one end of the searchlight 233 extending into the inner cavity of the rotating sleeve 232 is provided with a slot 234, and a driving slot 235 is provided on the rear side of the inner cavity of the rotating sleeve 232. A motor 3 236 is fixedly installed on the rear side of the protruding rod 231, and the output shaft of the motor 3 236 extends into the inner cavity of the protruding rod 231 and is fixedly connected to a gear 2 237, and the outer ring of the gear 237 extends out of the protruding rod 231 and meshes in the driving slot 235, and an electric push rod 4 238 is fixedly installed on the top of the inner cavity of the protruding rod 231, and a plug 239 is fixedly connected to the bottom end of the electric push rod 4 238, and the bottom end of the plug 239 is electrically connected to the slot 234;

[0059] The placement rack 225 has a built-in conductive device for supplying power to the camera 226 and the plug 239;

[0060] The support 221 has a built-in driving motor, and the output shaft of the driving motor is connected to the rotating rod 222 .

[0061] It should be noted that both the Y-axis moving platform 212 and the X-axis moving platform 213 are built with sliders for installing the X-axis moving platform 213 and the electric push rod 3 224;

[0062] Camera 226 has built-in 3D scanning capabilities to improve the comprehensiveness and accuracy of detection;

[0063] Searchlight 233 is provided with four groups, namely infrared, ultraviolet, fluorescent and cold dimming, which are designed to utilize lights of different spectra to detect small damages, for example: under ultraviolet light, these flaws on the screen will fluoresce, while infrared rays are particularly effective for scratches and bubbles on dark or black screens.

[0064] In this embodiment, during the detection process, the Y-axis moving platform 212 and the X-axis moving platform 213, as well as the electric push rod 214, respectively control the front, back, left, right and height of the camera 226, thereby realizing an all-round scan of the display screen surface, while the electric push rod 3 224 drives the shaking rod 223 to rotate and adjusts the tilt angle of the camera 226. The camera 226 captures the tiny defects on the surface of the display screen and takes pictures. If precise detection is required, the motor 3 236 drives the gear 2 237 to rotate, and the gear 2 237 drives the rotating sleeve 232 to rotate through the driving slot 235, placing the searchlight 233 of the appropriate spectrum below, and then the electric push rod 4 238 drives the plug 239 to descend to supply energy to the searchlight 233 to emit searchlight light, so as to carefully observe the defects on the surface of the display screen. The four groups of lights with different spectra of the searchlight 233 are used for auxiliary detection. Through the irradiation of different angles and spectra, the defects on the display screen can be more clearly identified. For example, infrared light can highlight scratches and bubbles on the screen, while ultraviolet light helps to find fluorescent substances on the screen, which are usually caused by defects in the screen material or manufacturing process. Fluorescent lamps and cold dimming provide lighting conditions close to natural light so that inspection can be carried out under conditions closest to the actual use environment. Through this comprehensive inspection method, it can be ensured that any defects on the surface of the LCD screen will not be missed, ensuring the comprehensiveness and accuracy of the inspection.

[0065] The working principle of the present invention is as follows: before detection, the conveyor belt 113 transports the display screen to the bottom of the machine body 111, and then the electric guide rail 121 drives the electric lifting rods 122 on both sides of the front and rear to approach, and the display screen is clamped and fixed by the rubber clamp 123, and then the electric lifting rod 122 is driven to rise. After the display screen is lifted into the mechanical claw 145, the mechanical claw 145 runs to clamp and fix the display screen, and then the motor 133 drives the tilting ring 131 to rotate, and then drives the rotating ring 141 to rotate, so as to adjust the tilt angle of the display screen. Then the motor 2 143 drives the gear 1 144 to rotate, and drives the rotating ring 141 to rotate through the tooth groove 142, so as to realize the 360-degree rotation scanning of the display screen. During the detection process, the Y-axis moving platform 212 and the X-axis moving platform 213, as well as the electric push rod 214, respectively control the front and rear left and right positions and heights of the camera 226, so as to realize the all-round scanning of the display screen surface, and at the same time, the electric push rod 3 224 drives the shaking rod 223 to rotate and adjust the tilt angle of the camera 226. The camera 226 captures the tiny defects on the surface of the display screen and takes a photo. If precise inspection is required, the motor 3 236 drives the gear 2 237 to rotate, and the gear 237 drives the rotating sleeve 232 to rotate through the driving slot 235, and the searchlight 233 with a suitable spectrum is placed below, and then the electric push rod 4 238 drives the plug 239 to descend to supply energy to the searchlight 233 to emit searchlight light, so as to carefully observe the defects on the surface of the display screen. After the inspection is completed, the electric lifting rod 122 drives the rubber clamp 123 to rise and clamp the display, and then the mechanical claw 145 releases the display, and the electric lifting rod 122 returns the display to the conveyor belt 113.

[0066] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A liquid crystal display surface defect detection device, characterized in that: The machine comprises a main body component, the main body component comprises a processing table component, the processing table component comprises a machine body, a lifting component is arranged below the processing table component, a tilting component is arranged inside the processing table component, and a rotating component is arranged in the inner cavity of the tilting component; A detection component, the detection component includes a regulating component arranged above the processing table component, a shooting component is arranged below the regulating component, and a switching component is arranged at the bottom of the shooting component; The lifting assembly is used to lift the display screen transported by the processing table assembly into the rotating assembly, the tilting assembly is used to drive the rotating assembly to tilt and flip, the rotating assembly is used to drive the display screen to rotate, the shooting assembly is used to detect defects on the surface of the display screen, the switching assembly is used to switch light sources of different spectra to illuminate the display screen, and the regulating assembly is used to adjust the orientation of the shooting assembly and the switching assembly; The regulating component includes a bracket fixedly connected to the top surface of the body, a Y-axis moving platform is fixedly installed on the top of the bracket, an X-axis moving platform is slidably connected to the inner cavity of the Y-axis moving platform, and an electric push rod 2 is slidably connected to the inner cavity of the X-axis moving platform; the shooting component includes a support fixedly installed on the bottom surface of the electric push rod 2, the bottom of the support is rotatably connected to a rotating rod, a shaking rod is hinged on the left end of the rotating rod, the top of the shaking rod is rotatably connected to an electric push rod 3, the bottom end of the electric push rod 3 is rotatably connected to the left top of the rotating rod, the bottom end of the shaking rod is fixedly connected to a placement rack, a camera is fixedly installed on the bottom surface of the placement rack, and the top of the placement rack is electrically connected to a cable The top of the cable is electrically connected to the bottom surface of the rotating rod; the switching component includes a convex rod fixedly connected to the left side of the bottom surface of the placement frame, the outer ring of the convex rod is rotatably connected to a rotating sleeve, the outer ring of the rotating sleeve is fixedly installed with a searchlight, and a slot is provided at one end of the searchlight extending into the inner cavity of the rotating sleeve, and a driving slot is provided on the rear side of the inner cavity of the rotating sleeve, and a motor three is fixedly installed on the rear side of the convex rod, and the output shaft of the motor three extends into the inner cavity of the convex rod and is fixedly connected to a gear two, and the outer ring of the gear two extends out of the convex rod and meshes in the driving slot, and an electric push rod four is fixedly installed on the top of the inner cavity of the convex rod, and a plug is fixedly connected to the bottom end of the electric push rod four, and the bottom end of the plug is electrically connected to the slot.

2. The liquid crystal display surface defect detection device according to claim 1, characterized in that: The processing table assembly comprises a machine body, a chassis is fixedly connected to the lower part of the machine body, and a conveyor belt is arranged above the chassis.

3. The liquid crystal display surface defect detection device according to claim 2, characterized in that: The lifting assembly comprises an electric guide rail fixedly mounted on the middle of the top surface of the chassis, the inner cavity of the electric guide rail is slidably connected with an electric lifting rod, and the top end of the electric lifting rod is fixedly connected with a rubber clamping plate.

4. The liquid crystal display surface defect detection device according to claim 2, characterized in that: The tilting assembly includes a tilting ring rotatably connected to the middle part of the machine body, a positioning ring is fixedly connected to the outer ring of the left end of the tilting ring, a motor is fixedly installed on the left side of the inner cavity of the machine body, the output shaft of the motor is fixedly connected to the left end of the tilting ring, an electric push rod is fixedly installed on the left side of the inner cavity of the machine body, a positioning block is fixedly connected to the output end of the electric push rod, the rear side of the positioning block is movably clamped on the outer ring of the positioning ring, a power supply ring is fixedly installed on the right side of the inner cavity of the machine body, and the right end of the tilting ring is in contact with the inner ring of the power supply ring.

5. The liquid crystal display surface defect detection device according to claim 4, characterized in that: The rotating assembly includes a swivel ring rotatably connected to the inner cavity of the tilting ring, the outer ring of the swivel ring is provided with a tooth groove, a motor 2 is fixedly installed on the right side of the top surface of the tilting ring, the output shaft of the motor 2 extends into the inner cavity of the tilting ring and is fixedly connected to a gear 1, the outer ring of the gear 1 is meshed in the tooth groove, and a mechanical claw is fixedly installed on the inner ring of the swivel ring.

6. The device for detecting surface defects of a liquid crystal display screen according to claim 5, characterized in that: The stand has a built-in conductive device for powering the camera and the plug.

7. The liquid crystal display surface defect detection device according to claim 6, characterized in that: The support is equipped with a driving motor, and the output shaft of the driving motor is connected to the rotating rod.

Images