A screen detection device

Abstract

This utility model belongs to the technical field of testing equipment, specifically disclosing a screen testing device, including a frame, a transfer module mounted on the frame, and a testing module. The testing module includes an SCF surface testing unit, a size testing unit, and a CG surface testing unit arranged sequentially along the X-axis on the frame. The transfer module includes a flipping unit, which is mounted on the frame and located between the SCF surface testing unit and the CG surface testing unit. The flipping unit includes a mechanical gripper for gripping the screen. The mechanical gripper can be manipulated to move along the X and Z axes respectively, so that the screen is transferred between the SCF surface testing unit, the size testing unit, and the CG surface testing unit. The mechanical gripper can also be manipulated to rotate around a set axis to flip the screen. This utility model achieves automated transfer by integrating the SCF surface testing unit, the size testing unit, and the CG surface testing unit, in conjunction with the flippable mechanical gripper. The testing process has a higher coupling degree, and the testing results are more accurate and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to a screen testing device. Background Technology

[0002] Mobile phone screen inspection is a crucial step in screen production, and its quality directly impacts the quality of the final product. Currently, mobile phone screen inspection primarily focuses on three key parameters: the SCF (Surface Finish), screen size, and CG (Color Finish). However, existing inspection methods have several technical shortcomings.

[0003] First, the inspection process uses a single visual inspection method, resulting in a limited scope and difficulty in comprehensively assessing screen quality. Second, the three inspection stages operate independently, leading to low process coupling and inefficient inspection. Third, the dispersed placement of inspection equipment necessitates multiple manual interventions during screen transport, increasing labor costs and increasing the risk of surface scratches or structural damage, severely impacting product yield. Furthermore, existing inspection equipment lacks overall protective measures, allowing environmental dust to affect inspection accuracy, and the fragmented user interfaces hinder standardized management of the production process. These technical deficiencies severely restrict the automation and accuracy of screen inspection, increasing production costs.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this invention is to provide a screen detection device that effectively improves the detection dimensions, enhances the coupling of the detection process and the level of automation, and solves the problems of single detection dimensions and low process coupling in the prior art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a screen inspection device, comprising a frame, a transfer module mounted on the frame, and an inspection module; the inspection module includes an SCF surface inspection unit, a size inspection unit, and a CG surface inspection unit sequentially arranged along the X direction on the frame; the transfer module includes a flipping unit, which is mounted on the frame and located between the SCF surface inspection unit and the CG surface inspection unit; the flipping unit includes a mechanical gripper for gripping the screen, which can be manipulated to move along the X and Z directions respectively, so that the screen is transferred between the SCF surface inspection unit, the size inspection unit, and the CG surface inspection unit, and the mechanical gripper can be manipulated to rotate around a set axis to flip the screen.

[0007] Furthermore, the transfer module also includes a feeding unit, which includes a feeding plate and a feeding slide. The feeding slide is installed on the frame and located near the SCF surface detection unit. The feeding plate is slidably installed on the feeding slide, and the sliding direction of the feeding plate is the direction of the line connecting the SCF surface detection unit and the flipping unit.

[0008] Furthermore, the transfer module also includes a feeding unit, which includes a feeding plate and a feeding slide. The feeding slide is installed on the frame and located near the CG surface detection unit. The feeding plate is slidably installed on the feeding slide, and the sliding direction of the feeding plate is the direction of the line connecting the CG surface detection unit and the flipping unit.

[0009] Furthermore, the flipping unit also includes a transverse slide rail, a longitudinal slide rail, and a rotary slide block. The transverse slide rail is installed on the frame along the X direction, and the two ends of the transverse slide rail are respectively positioned near the loading slide rail and the unloading slide rail. The longitudinal slide rail is installed on the transverse slide rail in a controllable manner, allowing it to slide along the transverse slide rail with a single degree of freedom. The longitudinal slide rail is positioned along the Z direction, and the rotary slide block is installed on the longitudinal slide rail in a controllable manner, allowing it to slide along the longitudinal slide rail with a single degree of freedom. The rotary slide block is equipped with a turntable, and a mechanical gripper is fixedly installed on the turntable. The turntable can be driven to rotate, and the mechanical gripper follows to flip the screen.

[0010] Furthermore, the SCF surface detection unit includes a first detection slide rail, a first detection cantilever, a first laser profilometer, and a first detection camera. The first detection slide rail is arranged along the Y direction, the first detection cantilever is slidably mounted on the first detection slide rail, the first detection cantilever is arranged along the X direction, and the first laser profilometer and the first detection camera are respectively installed on both sides of the first detection cantilever along the Y direction in a manner that allows them to slide along the first detection cantilever. The first laser profilometer and the first detection camera are both located above the loading plate.

[0011] Furthermore, the CG surface detection unit includes a second detection slide rail, a second detection cantilever, a second laser profilometer, and a second detection camera. The second detection slide rail is arranged along the Y direction, and the second detection cantilever is slidably mounted on the second detection slide rail. The second detection cantilever is arranged along the X direction, and the second laser profilometer and the second detection camera are respectively installed on both sides of the second detection cantilever along the Y direction in a manner that allows them to slide along the second detection cantilever. The second laser profilometer and the second detection camera are both located above the unloading plate.

[0012] Furthermore, the dimensional inspection unit includes a rotary inspection table, a third inspection slide rail, a third inspection cantilever, and a third inspection camera. The rotary inspection table is fixedly installed on the frame, and the third inspection slide rail is installed on the frame and located near the rotary inspection table. The third inspection slide rail is arranged along the X-axis, and the third inspection cantilever is slidably installed on the third inspection slide rail and located above the rotary inspection table. The third inspection cantilever is arranged along the Y-axis. Multiple third inspection cameras are provided, and the multiple third inspection cameras are slidably installed on the third inspection cantilever in a lockable manner, and the multiple third inspection cameras are installed on the same side of the third inspection cantilever.

[0013] Furthermore, it also includes a protective cover, which is installed on the frame. The SCF surface detection unit, feeding unit, size detection unit, unloading unit, and CG surface detection unit are arranged sequentially inside the protective cover along the X direction. The side wall of the protective cover has a feeding port and a unloading port, with the feeding port corresponding to the position of the feeding unit and the unloading port corresponding to the position of the unloading unit. The flipping unit is installed inside the protective cover and is located on the Y-direction of the protective cover away from the feeding port and the unloading port.

[0014] Furthermore, a fan filter unit is also installed on the top of the protective cover.

[0015] The beneficial effects of this technical solution are as follows:

[0016] This invention provides a screen inspection device that integrates SCF (Surface Coating), dimensional, and CG (Surface Coating) inspection functions onto a single frame. It utilizes a multi-directional, flip-type mechanical gripper to automatically transfer the screen between inspection units. This solves the problems of high screen transfer risk and low inspection efficiency caused by independent inspection steps in existing technologies. It integrates previously scattered inspection steps into a continuous inspection process, reducing manual intervention and improving inspection stability and reliability. Compared to existing technologies, this invention, by integrating SCF, dimensional, and CG inspection units with a flip-type mechanical gripper for automated transfer, solves the problems of single inspection dimensions and low process coupling in existing technologies. It offers advantages such as increased inspection dimensions, enhanced inspection process coupling, reduced manual intervention, lower product damage risk, improved inspection accuracy, and higher automation levels. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a screen detection device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a screen detection device according to the present invention:

[0019] Figure 3 This is a top view of the internal structure of a screen detection device according to the present invention:

[0020] Figure 4 This is a schematic diagram of the SCF surface detection unit of this utility model;

[0021] Figure 5 This is a side view of the structure of the SCF surface detection unit of this utility model;

[0022] Figure 6 Here is a schematic diagram of the size detection unit of this utility model:

[0023] Figure 7 This is a side view of the structure of the dimension detection unit of this utility model:

[0024] Figure 8 This is a schematic diagram of the structure of the CG surface detection unit of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the flipping unit of this utility model;

[0026] Figure 10 This is a schematic diagram of the feeding unit of this utility model;

[0027] Figure 11 This is a schematic diagram of the material feeding unit of this utility model. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The reference numerals in the accompanying drawings include: frame 1, start / stop operation button 101, protective cover 2, human-machine interface 201, loading port 202, unloading port 203, fan filter unit 3, SCF surface detection unit 4, first detection slide rail 401, first detection cantilever 402, first laser profilometer 403, first detection camera 404, size detection unit 5, rotating detection table 501, third detection slide rail 502, third detection cantilever 503, third detection camera 504, CG surface detection unit 6, second detection slide rail 601, second detection cantilever 602, second detection camera 603, second laser profilometer 604, flipping unit 7, transverse slide rail 701, longitudinal slide rail 702, rotating slide block 703, turntable 704, mechanical gripper 705, loading unit 8, loading slide rail 801, loading plate 802, unloading unit 9, unloading slide rail 901, unloading plate 902.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The basic implementation examples are as follows: Figure 1The diagram shows a screen inspection device, comprising a frame 1, a transfer module mounted on the frame 1, and an inspection module. The inspection module includes an SCF surface inspection unit 4, a size inspection unit 5, and a CG surface inspection unit 6 sequentially arranged along the X-axis on the frame 1. The transfer module includes a flipping unit 7, which is mounted on the frame 1 and located between the SCF surface inspection unit 4 and the CG surface inspection unit 6. The flipping unit 7 includes a mechanical gripper 705 for gripping the screen. The mechanical gripper 705 can be manipulated to move along the X and Z axes respectively, so that the screen is transferred between the SCF surface inspection unit 4, the size inspection unit 5, and the CG surface inspection unit 6. The mechanical gripper 705 can also be manipulated to rotate around a set axis to flip the screen. Specifically, the frame 1, as a supporting structure, can be a metal frame or a welded structure, with a flat platform on top to support the various functional modules. The flipping unit 7 in the transfer module uses a mechanical gripper 705 to grasp and transfer the screen. The mechanical gripper 705 can be used to fix the screen using a vacuum suction cup, flexible mechanical gripper, or electromagnetic adsorption, which can be selected by those skilled in the art according to the actual situation. X-axis and Z-axis movement can be achieved through linear drive mechanisms such as linear motors, ball screws, or belt drives. The set axis is usually a horizontal axis parallel to the Y-axis, and the rotation of the mechanical gripper 705 can be achieved by a servo motor and a reducer driving the turntable 704. The SCF surface detection unit 4 is used to detect the SCF surface of the screen, the size detection unit 5 is used to measure the external dimensions of the screen, and the CG surface detection unit 6 is used to detect the CG surface of the screen. The detection units are arranged sequentially along the X-axis to facilitate the sequential detection of the screen. Thus, by integrating the SCF surface detection, size detection, and CG surface detection functions into the same frame 1, and using a multi-directional movable and flipping mechanical gripper 705 to achieve automatic transfer of the screen between the detection units, the problems of high screen transfer risk and low detection efficiency caused by independent detection links in the prior art are solved. Specifically, the X and Z-axis movement of the mechanical gripper 705 enables precise positioning of the screen between different detection units, while the flipping function avoids the operational risks associated with manual flipping. This device achieves continuous and automated screen inspection processes, reducing the probability of screen damage during transport and improving inspection efficiency. Compared with existing technologies, this solution integrates previously scattered inspection steps into a coherent inspection process through optimized mechanical structure design, reducing manual intervention and improving the stability and reliability of inspection. SCF: Short Carbon Fibers, which are bonded to the back of the display screen via mesh adhesive or foam, provide mechanical support and cushioning, reducing damage to the screen from external impacts; CG: Cover Glass; simply put, the SCF and CG sides correspond to the two sides of the screen, which is common knowledge in the field and will not be elaborated upon here.

[0032] In this embodiment, the transfer module further includes a feeding unit 8, which includes a feeding plate 802 and a feeding slide 801. The feeding slide 801 is mounted on the frame 1 and located near the SCF surface detection unit 4. The feeding plate 802 is slidably mounted on the feeding slide 801, and the sliding direction of the feeding plate 802 is the direction of the line connecting the SCF surface detection unit 4 and the flipping unit 7. Specifically, the feeding slide 801 can use a linear guide rail or a ball screw structure to achieve directional sliding. The linear guide rail is fixedly connected to the feeding plate 802 through a slider, and the ball screw drives the feeding plate 802 to move through a nut pair. As a preferred embodiment, the feeding slide 801 can be equipped with a photoelectric sensor for position feedback to ensure that the feeding plate 802 is accurately positioned at the inspection station of the SCF surface detection unit 4. Furthermore, the line connecting the feeding plate 802 and the flipping unit 7 is usually set to the X-axis, so that the screen can be linearly transported along the main conveying direction of the detection process. Therefore, this technical solution automates the entire screen inspection process, from initial loading to the first inspection and subsequent transfers, through a modular loading structure. The spatial coordination between the loading unit 8 and the SCF surface inspection unit 4 ensures that the screen accurately enters the first inspection stage along a preset path. Compared to manual fixing, this structure effectively avoids the risk of scratches during transport, while the directional sliding mechanism ensures accurate loading positioning, providing stable incoming material conditions for subsequent inspection processes. This design is particularly suitable for production scenarios requiring continuous inspection of large batches of screens, significantly improving the stability and consistency of the inspection process by replacing manual operation with mechanical positioning.

[0033] In this embodiment, the transfer module further includes a feeding unit 9, which includes a feeding plate 902 and a feeding slide 901. The feeding slide 901 is installed on the frame 1 and located near the CG surface detection unit 6. The feeding plate 902 is slidably installed on the feeding slide 901, and the sliding direction of the feeding plate 902 is the direction of the line connecting the CG surface detection unit 6 and the flipping unit 7. Specifically, the feeding slide 901 is fixedly installed on a preset mounting position on the frame 1 by bolts, and its position is precisely calibrated according to the spatial layout of the CG surface detection unit 6 and the flipping unit 7. A linear guide rail slider assembly matching the feeding slide 901 is provided at the bottom to achieve smooth sliding along the slide direction. As a preferred embodiment, the feeding slide 901 can be configured with a servo motor-driven synchronous belt transmission mechanism, and the precise positioning of the feeding plate 902 is achieved through a PLC control system. The line connecting the feeding plate 902 and the flipping unit 7 is also set to the X-axis. Thus, by setting up feeding units 9 symmetrically distributed with the feeding unit 8, a complete material circulation system is formed. The alignment of the unloading chute 901 with the flipping unit 7 allows the robotic gripper 705 to directly transfer the inspected screen to the unloading station after flipping it, reducing intermediate transfer steps. The sliding design of the unloading plate 902 along a specific direction ensures effective connection with the CG surface inspection unit 6 while avoiding interference with other modules. This structure, by optimizing the material flow path, effectively reduces the risk of secondary damage to the screen after inspection, while simultaneously improving overall inspection efficiency.

[0034] In this embodiment, the flipping unit 7 further includes a transverse slide rail 701, a longitudinal slide rail 702, and a rotary slide block 703. The transverse slide rail 701 is installed on the frame 1 along the X direction, and the two ends of the transverse slide rail 701 are respectively located near the loading slide rail 801 and the unloading slide rail 901. The longitudinal slide rail 702 is installed on the transverse slide rail 701 in a controllable manner that allows it to slide along the transverse slide rail 701 with a single degree of freedom. The longitudinal slide rail 702 is arranged along the Z direction, and the rotary slide block 703 is installed on the longitudinal slide rail 702 in a controllable manner that allows it to slide along the longitudinal slide rail 702 with a single degree of freedom. The rotary slide block 703 is provided with a turntable 704, and a mechanical gripper 705 is fixedly installed on the turntable 704. The turntable 704 can be driven to rotate, and the mechanical gripper 705 follows to flip the screen.

[0035] Specifically, the longitudinal slide rail 702 can be moved on the transverse slide rail using a linear guide or ball screw structure, and its driving method includes a servo motor or stepper motor with a reducer. The rotary slide 703 is connected to the longitudinal slide rail 702 via a slider, and its Z-axis movement can be achieved by a cylinder or an electric push rod. The turntable 704 of the rotary slide 703 is driven by a servo motor, stepper motor, harmonic reducer, or worm gear mechanism, and the rotation angle can be controlled by encoder feedback. The mechanical gripper 705 can be a vacuum suction cup or a flexible mechanical gripper structure, and its gripping force is monitored in real time by a pneumatic pressure sensor or torque sensor. This technical solution achieves precise positioning and rotation of the screen between inspection stations through the coordinated control of multi-degree-of-freedom motion mechanisms and rotary modules. The transverse slide rail 701 extends the X-axis travel of the robotic gripper 705, enabling it to cover the entire process of loading, inspection, and unloading. The longitudinal slide rail 702 provides Z-axis lifting functionality, preventing interference between the screen and the equipment during transport. The rotating slide block 703 allows the screen to automatically switch orientations when inspecting the SCF and CG surfaces. Compared to manual flipping or transport by a single robotic arm, this structure reduces the risk of screen collisions due to secondary positioning, while simplifying motion control logic through modular design. Specifically, the rigid connection between the turntable 704 and the slide rail ensures stability during the flipping process, while the split-type slide rail layout optimizes equipment space utilization.

[0036] In this embodiment, the SCF surface detection unit 4 includes a first detection slide rail 401, a first detection cantilever 402, a first laser profilometer 403, and a first detection camera 404. The first detection slide rail 401 is arranged along the Y direction, and the first detection cantilever 402 is slidably mounted on the first detection slide rail 401. The first detection cantilever 402 is arranged along the X direction. The first laser profilometer 403 and the first detection camera 404 are respectively mounted on both sides of the first detection cantilever 402 along the Y direction, and are both located above the loading plate 802. Specifically, the first detection slide rail 401 can be a linear guide rail or a ball screw structure to achieve Y-direction movement, and the first detection cantilever 402 slides through a slider cooperating with the slide rail. The first laser profilometer 403 is preferably a line laser scanner, used to acquire the three-dimensional contour data of the SCF surface of the screen; the first detection camera 404 can be a high-resolution industrial camera, used to acquire the two-dimensional image data of the SCF surface. In a preferred embodiment, independent drive motors can be installed on both sides of the first detection cantilever 402 to control the Y-axis position of the laser profilometer and the detection camera, respectively, thereby achieving precise adjustment of the detection position. Furthermore, a positioning reference mark can be installed above the loading plate 802 to assist the camera in coordinate calibration. Thus, this technical solution achieves simultaneous multi-parameter detection of the SCF surface through an integrated detection mechanism design. The Y-axis adjustable detection component can adapt to the detection needs of screens of different sizes, while the X-axis extended cantilever structure ensures that the detection range covers the entire loading area. Compared with existing technologies, this structure integrates profilometry and visual inspection in the same station, reducing the number of screen transfers. Simultaneously, the design of the sliding detection component improves the flexibility of the detection system. In practical implementation, the collaborative work of the laser profilometer and the detection camera can simultaneously acquire the screen's morphological features and surface defect information, providing more comprehensive data support for subsequent quality judgment.

[0037] In this embodiment, the CG surface detection unit 6 includes a second detection slide rail 601, a second detection cantilever 602, a second laser profilometer 604, and a second detection camera 603. The second detection slide rail 601 is arranged along the Y direction, and the second detection cantilever 602 is slidably mounted on the second detection slide rail 601. The second detection cantilever 602 is arranged along the X direction. The second laser profilometer 604 and the second detection camera 603 are respectively installed on both sides of the second detection cantilever 602 along the Y direction in a manner that allows them to slide along the second detection cantilever 602. The second laser profilometer 604 and the second detection camera 603 are both arranged above the unloading plate 902.

[0038] Specifically, the second inspection slide rail 601 adopts a linear guide structure, and the second inspection cantilever 602 is precisely positioned in the Y direction by a servo motor drive. The second inspection cantilever 602 is connected to the second inspection slide rail 601 via a slider, and its X-direction extension structure uses aluminum alloy profiles to reduce weight. The second laser profilometer 604 adopts the principle of line laser scanning to measure the three-dimensional shape data of the CG surface, and its installation position is adjusted in the Y direction by a slide table. The second inspection camera 603 adopts a high-resolution industrial camera to realize the inspection of CG surface defects. This is a preferred embodiment. In addition, the inspection devices on both sides of the second inspection cantilever 602 can be independently adjusted to adapt to the inspection needs of screens of different sizes. Thus, this technical solution achieves spatial optimization of the CG surface inspection equipment through modular inspection unit design. Among them, the Y-direction adjustable inspection device can cover the full-area inspection needs of the screen, and the X-direction cantilever structure ensures that the inspection device does not interfere with the transfer module. Compared with the prior art, this solution integrates a laser profilometer and a vision inspection device to complete the synchronous inspection of CG surface shape and appearance defects at a single workstation, avoiding errors caused by multiple positioning. Meanwhile, the adjustability of the testing equipment improves its adaptability to screens of different specifications, and parameter matching can be completed without changing fixtures during the testing process. The mounting position above the unloading plate 902 allows for seamless integration of the testing process and the unloading process, reducing the risk of damage during screen transportation.

[0039] In this embodiment, the size detection unit 5 includes a rotating detection table 501, a third detection slide rail 502, a third detection cantilever 503, and a third detection camera 504. The rotating detection table 501 is fixedly installed on the frame 1, and the third detection slide rail 502 is installed on the frame 1 and located near the rotating detection table 501. The third detection slide rail 502 is arranged along the X direction, and the third detection cantilever 503 is slidably installed on the third detection slide rail 502 and located above the rotating detection table 501. The third detection cantilever 503 is arranged along the Y direction. Multiple third detection cameras 504 are provided, and multiple third detection cameras 504 are slidably installed on the third detection cantilever 503 in a lockable manner, and multiple third detection cameras 504 are installed on the same side of the third detection cantilever 503.

[0040] Specifically, the rotary inspection stage 501 is used to support and rotate the screen to be inspected, allowing different areas of the screen to be captured by the third inspection camera 504. The third inspection slide rail 502 is positioned along the X-axis, enabling the third inspection cantilever 503 to move along the X-axis, thereby covering different positions on the rotary inspection stage 501. The third inspection cantilever 503 is positioned along the Y-axis, allowing multiple third inspection cameras 504 mounted on it to move along the Y-axis, further expanding the inspection range. Multiple third inspection cameras 504 can be locked and slidably mounted on the third inspection cantilever 503, facilitating adjustment of camera spacing according to screen size and ensuring inspection accuracy. As a preferred embodiment, the third inspection camera 504 can be a high-resolution industrial camera with a telecentric lens to reduce perspective errors. The rotary inspection stage 501 can be equipped with a servo motor drive for precise angle control. The third inspection slide rail 502 and the third inspection cantilever 503 can be linear modules to ensure smooth movement and repeatability. Therefore, this technical solution achieves efficient and comprehensive screen size inspection through the cooperation of a rotating inspection stage 501 and multiple adjustable-spacing third inspection cameras 504. The rotating inspection stage 501 allows the screen to rotate to different angles, facilitating the capture of screen edge data from a fixed position by multiple cameras, avoiding the cumbersome operation of frequently adjusting camera positions required in traditional inspection. The multiple cameras are distributed along the Y-axis with adjustable spacing, adapting to the inspection needs of screens of different sizes, improving inspection flexibility and efficiency. Furthermore, the camera position locking function ensures stability during the inspection process, further improving measurement accuracy. Compared with existing technologies, this solution significantly reduces the number of screen transfers, lowers the risk of screen damage caused by transfer, and simplifies the inspection process through integrated design, improving overall inspection efficiency.

[0041] In this embodiment, a protective cover 2 is also included, which covers the frame 1. The SCF surface detection unit 4, the feeding unit 8, the size detection unit 5, the unloading unit 9, and the CG surface detection unit 6 are sequentially arranged inside the protective cover 2 along the X-direction. The side wall of the protective cover 2 has a feeding port 202 and a unloading port 203, with the feeding port 202 corresponding to the position of the feeding unit 8 and the unloading port 203 corresponding to the position of the unloading unit 9. A flipping unit 7 is disposed inside the protective cover 2, and the flipping unit 7 is located on the Y-direction of the protective cover 2 away from the feeding port 202 and the unloading port 203. A fan filter unit 3 is also provided on the top of the protective cover 2. Specifically, the side wall of the protective cover 2 has a feeding port 202 and a unloading port 203, and a lighting system can be installed inside the protective cover 2 to ensure stable lighting conditions during the detection process. In addition, a fan filter unit 3 is installed on the top of the protective cover 2 to maintain the cleanliness of the internal air and prevent dust from affecting the detection accuracy. The fan filter unit 3 typically consists of a fan and a high-efficiency filter, where the fan generates airflow and the high-efficiency filter filters particulate matter in the air. Specifically, the fan filter unit 3 can include a centrifugal fan or an axial fan, and the high-efficiency filter can be a HEPA filter or a ULPA filter. Thus, by setting up the protective cover 2, all units in the detection process are integrated into a closed space, effectively reducing the interference of the external environment on the detection process, and preventing the screen from being contaminated or damaged during transportation. The design of the loading port 202 and unloading port 203 of the protective cover 2 makes it easier for the screen to enter and exit, while the position of the flipping unit 7 optimizes the internal space layout and improves detection efficiency. Compared with existing technologies, the integrated design of the protective cover 2 significantly improves the stability and reliability of the detection process and reduces the risk of screen damage during detection. By setting the fan filter unit 3 on the top of the protective cover 2, the cleanliness of the air inside the protective cover 2 can be effectively controlled. Specifically, the airflow generated by the fan filter unit 3 can promptly remove dust and particulate matter generated during the detection process, while the filtered clean air can prevent pollutants from adhering to the screen surface and affecting the detection accuracy.

[0042] In this embodiment, the protective cover 2 is also equipped with a human-machine interface 201, and the frame 1 is also equipped with start / stop operation buttons 101. The human-machine interface 201 can be in the form of a touch screen or a physical button panel, and is connected to the control system via wired or wireless means to display detection data, equipment status, and alarm information in real time. The start / stop operation buttons 101 include an emergency stop button and a start button. The human-machine interface 201 can be installed on the Y-side of the protective cover 2 closer to the operator, and the start / stop operation buttons 101 are arranged on the side of the frame 1 in an easily accessible position. By setting the human-machine interface 201 on the protective cover 2 and the start / stop operation buttons 101 on the frame 1, real-time monitoring and rapid operation of the equipment status during the detection process are realized. The human-machine interface 201 centrally displays the data of each detection unit, avoiding the problem of operators having to check multiple detection devices separately; the setting of physical start / stop buttons allows for rapid power cut-off of the equipment in emergency situations, which has higher reliability compared to pure software control.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A screen detection device, characterized in that: The system includes a frame, a transfer module mounted on the frame, and a detection module. The detection module includes an SCF surface detection unit, a size detection unit, and a CG surface detection unit sequentially arranged along the X-axis on the frame. The transfer module includes a flipping unit, which is mounted on the frame and located between the SCF surface detection unit and the CG surface detection unit. The flipping unit includes a mechanical gripper for gripping the screen. The mechanical gripper can be manipulated to move along the X and Z axes respectively, so that the screen is transferred between the SCF surface detection unit, the size detection unit, and the CG surface detection unit. The mechanical gripper can also be manipulated to rotate around a set axis to flip the screen.

2. The screen detection device according to claim 1, characterized in that: The transfer module also includes a feeding unit, which includes a feeding plate and a feeding slide. The feeding slide is installed on the frame and located near the SCF surface detection unit. The feeding plate is slidably installed on the feeding slide, and the sliding direction of the feeding plate is the direction of the line connecting the SCF surface detection unit and the flipping unit.

3. The screen detection device according to claim 2, characterized in that: The transfer module also includes a feeding unit, which includes a feeding plate and a feeding slide. The feeding slide is installed on the frame and located near the CG surface detection unit. The feeding plate is slidably installed on the feeding slide, and the sliding direction of the feeding plate is the direction of the line connecting the CG surface detection unit and the flipping unit.

4. The screen detection device according to claim 3, characterized in that: The flipping unit further includes a transverse slide rail, a longitudinal slide rail, and a rotary slide block. The transverse slide rail is installed on the frame along the X-axis, and its two ends are respectively positioned near the loading and unloading slide rails. The longitudinal slide rail is installed on the transverse slide rail in a controllable manner, allowing it to slide along the transverse slide rail with a single degree of freedom. The longitudinal slide rail is positioned along the Z-axis, and the rotary slide block is installed on the longitudinal slide rail in a controllable manner, allowing it to slide along the longitudinal slide rail with a single degree of freedom. The rotary slide block is equipped with a turntable, and the mechanical gripper is fixedly installed on the turntable. The turntable can be driven to rotate, and the mechanical gripper follows to flip the screen.

5. A screen detection device according to claim 4, characterized in that: The SCF surface detection unit includes a first detection slide rail, a first detection cantilever, a first laser profilometer, and a first detection camera. The first detection slide rail is arranged along the Y direction, the first detection cantilever is slidably mounted on the first detection slide rail, the first detection cantilever is arranged along the X direction, and the first laser profilometer and the first detection camera are respectively mounted on both sides of the first detection cantilever along the Y direction in a manner that allows them to slide along the first detection cantilever. The first laser profilometer and the first detection camera are both located above the loading plate.

6. The screen detection device according to claim 5, characterized in that: The CG surface detection unit includes a second detection slide rail, a second detection cantilever, a second laser profilometer, and a second detection camera. The second detection slide rail is arranged along the Y direction, and the second detection cantilever is slidably mounted on the second detection slide rail. The second detection cantilever is arranged along the X direction, and the second laser profilometer and the second detection camera are respectively mounted on both sides of the second detection cantilever along the Y direction in a manner that allows them to slide along the second detection cantilever. The second laser profilometer and the second detection camera are both located above the unloading plate.

7. A screen detection device according to claim 6, characterized in that: The size detection unit includes a rotating detection table, a third detection slide rail, a third detection cantilever, and a third detection camera. The rotating detection table is fixedly installed on the frame, and the third detection slide rail is installed on the frame and located near the rotating detection table. The third detection slide rail is arranged along the X-axis, and the third detection cantilever is slidably installed on the third detection slide rail and located above the rotating detection table. The third detection cantilever is arranged along the Y-axis. Multiple third detection cameras are provided, and the multiple third detection cameras are slidably and lockably installed on the third detection cantilever, and the multiple third detection cameras are installed on the same side of the third detection cantilever.

8. The screen detection device according to claim 7, characterized in that: It also includes a protective cover, which is installed on the frame. The SCF surface detection unit, the feeding unit, the size detection unit, the unloading unit, and the CG surface detection unit are arranged sequentially inside the protective cover along the X direction. The side wall of the protective cover has a feeding port and a unloading port. The feeding port is set at the position of the feeding unit, and the unloading port is set at the position of the unloading unit. The flipping unit is set inside the protective cover, and the flipping unit is located on the side of the protective cover away from the feeding port and the unloading port along the Y direction.

9. A screen detection device according to claim 8, characterized in that: The top of the protective cover is also equipped with a fan filter unit.

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