Warping horizontal shooting device and working method thereof
By designing a warping horizontal shooting device including a warped glass back plate, a pneumatic top block and a grille plate, the problem of bottom deformation and inconvenience in detection of large-sized glass substrates is solved, and efficient and accurate warping detection is achieved .
Patent Information
- Application Number
- CN202411362513.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-01-03
AI Technical Summary
Traditional warpage detection devices cannot meet the detection requirements of large-size glass substrates, resulting in deformation and inconvenient operation of the bottom, affecting detection accuracy and efficiency.
Design a warping horizontal shooting device, using a warped glass back plate, pneumatic top block, column and grille plate parallel to the ground, combined with steel rope and universal wheel to ensure the flatness and stability of the glass substrate and reduce labor Operation to improve shooting efficiency.
Effectively eliminate bottom deformation, improve warping shooting accuracy, is suitable for large-area panel inspection, reduce manual operation and time costs, and improve detection efficiency and image clarity.
Smart Images
Figure CN119255070A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of flat glass substrate inspection, and in particular to a warping horizontal shooting device and a working method thereof. Background Art
[0002] TFT-LCD glass substrates are thin, highly transparent, and highly scratch-resistant, and are widely used in image display systems. Display screens made from them have excellent image quality and can display information at high speed, high brightness, and high contrast.
[0003] The traditional warpage detection of TFT-LCD glass substrates is to shoot at an angle. Since the original design of glass substrate lines is based on the original small-size design, with the development of large-size substrate glass industry, customers have higher and higher requirements for glass quality. The same warpage detection design method can no longer meet the use of the existing industry. The traditional warpage detection method of placing the substrate on a warped backplane is limited; the glass substrate is placed upright at an angle, which will cause the bottom to be deformed by force, and the operator will be suspended in the air for a second shot, affecting the accuracy and efficiency of the detection.
[0004] In summary, it is urgent to develop a device that can ensure accurate warpage photography and is suitable for large panels to meet the needs of the current fast-paced production method. Summary of the invention
[0005] The purpose of the present invention is to provide a warp horizontal shooting device and a working method thereof to overcome the problems existing in the prior art. The present invention can eliminate bottom deformation, ensure accurate warp shooting and be suitable for devices with large board surfaces, greatly optimize the warp shooting effect, reduce the need for manual operation and time cost, thereby significantly improving the accuracy of warp shooting and improving the detection and transportation efficiency.
[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A warped horizontal shooting device comprises a warped glass back plate parallel to the ground, a pneumatic top block is arranged on the warped glass back plate, a supporting profile is installed on the bottom of the warped glass back plate, a plurality of columns are installed on the outside of the warped glass back plate, a grid plate is installed on the top of the column, the grid plate comprises a curtain plate, a grid curtain plate grid paper is attached to the curtain plate through a grid curtain plate grid paper pasting position arranged on the side, a camera installation hole is arranged on the grid plate, a camera is installed on the camera installation hole, and a plurality of steel ropes are fixed on the grid plate; Furthermore, a black film is attached to the surface of the warped glass back plate; Furthermore, the surface of the warped glass back plate is provided with a plurality of grooves; Furthermore, the supporting profile is equipped with self-locking universal wheels; Furthermore, the number of the columns is 4; Furthermore, the minimum diameter of the column is calculated by estimating the center load of the grid plate and the column when working, firstly considering the grid plate and the column as absolutely rigid objects, and secondly assuming that the column evenly bears the force generated by the grid plate when working; Furthermore, the calculation formula for the minimum diameter of the column is: (1) (2) In the formula, It is the stress on the column when working; is the nominal pressure of the grid plate and column; is the minimum diameter allowed for the column; is the number of columns, is the allowable stress when the material of the column is 45% rigid; Furthermore, the grid plate includes a curtain plate, and the curtain plate is attached with a grid curtain plate grid paper through a grid curtain plate grid paper pasting position arranged on the side of the curtain plate; Furthermore, the surface of the grid plate is flat and non-reflective; Furthermore, the camera installation hole is arranged at the center of the grid plate.
[0007] A working method of a warped horizontal shooting device, based on the above-mentioned warped horizontal shooting device, comprises the following steps: (1) Paste the grille curtain panel grid paper at the grille curtain panel grid paper pasting position, place the grille panel on the column, use several steel ropes to lift the grille panel, and move the supporting profile to the bottom of the grille panel; (2) Press the pneumatic ejector block, the pneumatic ejector block is ejected, and the glass substrate is placed on the warped glass back plate. The glass substrate presses against the pneumatic ejector block, and the pneumatic ejector block is pressed again, and the pneumatic ejector block is retracted; (3) Install the camera in the camera installation hole and take pictures; (4) After the shooting is completed, press the pneumatic top block, the pneumatic top block will be pushed out, and the glass substrate will be lifted away from the warped glass back plate. Press the pneumatic top block again, and the pneumatic top block will be retracted.
[0008] The above technical solution has the following advantages or beneficial effects: The present invention provides a warped horizontal shooting device and a working method thereof. By adopting a warped glass back plate parallel to the ground, shooting errors caused by bottom unevenness or deformation can be effectively eliminated. The warped glass back plate enables the glass substrate to maintain a high degree of flatness and stability, can eliminate bottom deformation, and provides a precise reference surface for shooting, thereby ensuring the accuracy of the shooting result; by arranging columns and grid plates, a stable installation platform is provided for the camera, which can easily meet the shooting needs of large-area panels, not only broadening the application range of the shooting device, but also improving the shooting efficiency, and the shooting of panels of different sizes can be completed without frequent replacement or adjustment of equipment; the grid of the grid curtain panel is attached to the grid paper pasting position of the grid curtain panel set on the side The lines on the grid paper of the grille curtain panel will form projections on the glass substrate due to the transmission and refraction of light. The degree of curvature of the lines can reflect the warping of the glass substrate, thereby realizing a quantitative evaluation of the warping quality of the glass substrate and greatly optimizing the warping shooting effect. The introduction of the pneumatic top block realizes the confirmation, support and adjustment of the position of the shooting object, ensuring that the substrate glass is horizontal and vertical, so as to ensure the best shooting effect when the substrate glass is placed on the warped glass backplane, greatly reducing the demand for manual operation and time cost, which not only improves work efficiency, but also reduces the errors that may be introduced by human factors, further improving the reliability of the shooting results. By setting up a number of steel ropes, the steel ropes and columns provide dual support and protection for the grille plate.
[0009] Furthermore, reflections and stray light often interfere with the shooting results, causing blurred or distorted images, while the black film can absorb most of the light, reduce the interference of reflected and scattered light on the shooting picture, help increase the contrast between the subject and the background, make the captured image clearer and the edges sharper, and the high-contrast image can more accurately reflect the slight deformation of the board surface and improve the detection accuracy; the black film also has a certain protective effect, which can prevent the surface of the warped glass back panel from being scratched or contaminated. During long-term use, it helps to maintain the flatness and cleanliness of the glass back panel and extend the service life of the equipment.
[0010] Furthermore, by setting a number of grooves, the direct contact area between the warped glass back panel and the substrate glass is significantly reduced. Electrostatic adsorption usually occurs between two flat and closely contacted objects. The introduction of grooves destroys this continuous contact surface, thereby reducing the possibility of electrostatic adsorption. The groove design helps to improve the charge distribution on the back panel surface, making it easier for the charge to disperse or dissipate, rather than concentrating in a certain area and causing strong electrostatic adsorption.
[0011] Furthermore, by providing self-locking universal wheels, the shooting device can be easily moved between different locations without relying on external handling equipment or a large amount of manpower. This is particularly convenient when performing multi-point shooting or when frequent adjustments to the shooting position are required. The design of the universal wheels allows the device to be flexibly moved in uneven or limited spaces, thereby enhancing the device's adaptability to different shooting environments.
[0012] Furthermore, the non-reflective board surface can effectively reduce the reflection and scattering of light on the board surface, avoiding the interference of these reflected lights on the photographed object, thereby improving the clarity and contrast of the captured image; the flat board surface ensures that the light can be evenly and stably irradiated on the photographed object during shooting, reducing the image distortion or blur caused by the uneven board surface, making the shooting results more accurate.
[0013] Furthermore, setting the camera mounting hole at the center of the grille plate can ensure that the camera lens is directly aimed at the core area of the subject, thereby achieving accurate focus and shooting, helping to reduce shooting errors caused by perspective deviation or lens distortion and improving shooting accuracy; the center position enables the camera to receive relatively uniform light from around the grille plate, reducing shadows or highlight areas caused by uneven light distribution, thereby improving the clarity and quality of the captured image.
[0014] The present invention also provides a working method of a warped horizontal shooting device, wherein the grid paper of the grid curtain plate is pasted at the grid paper pasting position of the grid curtain plate, and the lines on the grid paper of the grid curtain plate will form a projection on the glass substrate. The curvature of the projected lines can reflect the warping of the glass substrate, thereby accurately judging the warping of the glass substrate; the grid plate is lifted by a steel rope and placed on a column, and combined with the movement of the supporting profile, the grid plate is quickly and accurately positioned, which not only simplifies the installation steps but also improves the stability and safety of the equipment; the glass substrate can be easily placed on the warped glass back plate or lifted away by utilizing the ejection and retraction functions of the pneumatic ejector block, which greatly simplifies the loading and unloading process of the glass substrate and improves the work efficiency; the camera can be directly aimed at the shooting object (glass substrate) through the camera installation hole installed in the center of the grid plate to achieve precise focus and ensure the clarity and accuracy of the shot image; the flat and non-reflective characteristics of the grid plate and the reasonable layout design reduce the influence of light reflection and scattering on the shooting result, thereby further improving the quality of the shot image. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of a warped horizontal shooting device of the present invention; Figure 2 A schematic diagram of a grid curtain board grid paper of a warped horizontal shooting device of the present invention; In the figure, 1-steel rope; 2-camera installation position; 3-grid plate; 4-grid curtain panel grid paper pasting position; 5-column; 6-; 7-groove; 8-support profile; 9-pneumatic top block; 10-grid curtain panel grid paper. DETAILED DESCRIPTION
[0016] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it. In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention. It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0017] Embodiment 1: like Figure 1 As shown, the present invention provides a warped horizontal shooting device, comprising a warped glass back plate 6 parallel to the ground, a plurality of grooves 7 are formed on the surface of the warped glass back plate 6, a pneumatic top block 9 is arranged on the warped glass back plate 6, a supporting profile 8 is installed at the bottom of the warped glass back plate 6, four columns 5 are installed on the outside of the warped glass back plate 6, a grid plate 3 is installed on the top of the columns 5, the grid plate 3 has a flat plate surface and no reflection, a camera installation hole 2 is arranged on the grid plate 3, the camera is installed on the camera installation hole 2, and a plurality of steel ropes 1 are fixed on the grid plate 3; Preferably, a black film is attached to the surface of the warped glass back plate 6; Preferably, the supporting profile 8 is equipped with self-locking universal wheels; Preferably, the minimum diameter of the column 5 is calculated by estimating the center load of the grid plate 3 and the column 5 when they are working, firstly considering the grid plate 3 and the column 5 as absolutely rigid objects, and secondly assuming that the column 5 evenly bears the force generated by the grid plate 3 when it is working; (1) (2) In the formula, is the stress on the column 5 during operation; is the nominal pressure of the grid plate 3 and the column 5; is the minimum diameter allowed for column 5; is the number of columns 5, is the allowable stress when the material of column 5 is 45% rigid; Preferably, the camera mounting hole 2 is arranged at the center of the grid plate 3 .
[0018] like Figure 2 As shown, the grid plate 3 includes a curtain plate, and the curtain plate is attached with a grid curtain plate grid paper 10 through a grid curtain plate grid paper pasting position 4 arranged on the side.
[0019] The present invention also provides a working method of a warped horizontal shooting device, based on the above-mentioned warped horizontal shooting device, comprising the following steps: (1) Paste the grille curtain panel grid paper 10 at the grille curtain panel grid paper pasting position 4, place the grille panel 3 on the column 5, use a plurality of steel ropes 1 to lift the grille panel 3, and move the supporting profile 8 to the lower part of the grille panel 3; (2) Press the pneumatic top block 9, the pneumatic top block 9 is pushed out, and the glass substrate is placed on the warped glass back plate 6. The glass substrate presses against the pneumatic top block 9, and the pneumatic top block 9 is pressed again, and the pneumatic top block 9 is retracted; (3) Install the camera in the camera installation hole 2 and take pictures; (4) After the shooting is completed, the pneumatic top block 9 is pressed, and the pneumatic top block 9 is pushed out to lift the glass substrate away from the warped glass back plate 6. The pneumatic top block 9 is pressed again, and the pneumatic top block 9 is retracted.
[0020] Embodiment 2: like Figure 1As shown, the present invention provides a warped horizontal shooting device, including a warped glass back plate 6 parallel to the ground, which can effectively eliminate the shooting error caused by the unevenness or deformation of the bottom, so that the glass substrate can maintain a high degree of flatness and stability, and can eliminate the bottom deformation, providing a precise reference surface for shooting, thereby ensuring the accuracy of the shooting result; a plurality of grooves 7 are opened on the surface of the warped glass back plate 6 to prevent the warped glass back plate 6 and the substrate glass from being electrostatically adsorbed, and a pneumatic top block 9 is arranged on the warped glass back plate 6 to ensure that the substrate glass is horizontally and vertically, so as to ensure that the shooting effect is best when the substrate glass is placed on the warped glass back plate 6, which greatly reduces the demand and time cost of manual operation, not only improves the work efficiency, but also reduces the errors that may be introduced by human factors, and further improves the shooting result The reliability of the effect is improved. A supporting profile 8 is installed at the bottom of the warped glass back plate 6. The supporting profile 8 is installed with a self-locking universal wheel, so that the shooting device can be easily moved between different positions without relying on external handling equipment or a large amount of manpower. It is particularly convenient when performing multi-point shooting or when the shooting position needs to be adjusted frequently. The design of the universal wheel allows the device to be flexibly moved in an uneven or limited space, thereby enhancing the adaptability of the device to different shooting environments. Four columns 5 are installed on the outside of the warped glass back plate 6. A grid plate 3 is installed on the top of the column 5. The surface of the grid plate 3 is flat and non-reflective. A camera installation hole 2 is provided on the grid plate 3. The camera is installed on the camera installation hole 2. A plurality of steel ropes 1 are fixed on the grid plate 3, so that the steel ropes 1 and the columns 5 provide double support and protection for the grid plate 3. Preferably, the warped glass back plate 6 is made of 10 mm thick tempered glass, with a black film attached to the surface. The material of the black film is scratch-resistant material, which is convenient for replacement. Reflection and stray light often interfere with the shooting results, resulting in blurred or distorted images, while the black film can absorb most of the light, reduce the interference of reflected and scattered light on the shooting picture, and help increase the contrast between the shooting object and the background, making the shot image clearer and the edge sharper. The high-contrast image can more accurately reflect the slight deformation of the board surface and improve the detection accuracy. The black film also has a certain protective effect, which can prevent the surface of the warped glass back plate 6 from being scratched or contaminated. During long-term use, it helps to maintain the flatness and cleanliness of the warped glass back plate 6 and extend the service life of the equipment. Preferably, the effective bearing area of the warped glass back plate 6 is ≤2900*2600 mm 2 ; Preferably, the overall height of the support profile 8 is: 750 mm, the flatness of the support profile 8 needs to maintain an error value of ≤3 mm to achieve distortion-free photography, and 12 points are taken from the four sides of the support surface, 4 points on the long side and 3 points on the short side, evenly distributed, to measure and confirm the levelness; Preferably, the minimum diameter of the column 5 is calculated by estimating the center load of the grid plate 3 and the column 5 when they are working, firstly considering the grid plate 3 and the column 5 as absolutely rigid objects, and secondly assuming that the column 5 evenly bears the force generated by the grid plate 3 when it is working; (1) (2) In the formula, is the stress on the column 5 during operation; is the nominal pressure of the grid plate 3 and the column 5; is the minimum diameter allowed for column 5; is the number of columns 5, is the allowable stress when the material of column 5 is 45% rigid; Preferably, consult the manual to know 50~80 Mpa; Preferably, the camera mounting hole 2 is set at the center of the grid plate 3, which can ensure that the camera lens is directly aimed at the core area of the subject, thereby achieving accurate focus and shooting, helping to reduce shooting errors caused by perspective deviation or lens distortion, and improving shooting accuracy; the center position enables the camera to receive relatively uniform light from around the grid plate 3, reducing shadows or highlight areas caused by uneven light distribution, thereby improving the clarity and quality of the captured image.
[0021] like Figure 2 As shown, the grid plate 3 includes a screen plate, and the screen plate is attached with a grid screen paper 10 through a grid screen paper pasting position 4 set on the side; the lines on the grid screen paper 10 will form a projection on the glass substrate due to the transmission and refraction of light, and the curvature of the glass substrate can be reflected by the curvature of the lines, so as to achieve a quantitative evaluation of the warping quality of the glass substrate, so as to achieve the best shooting effect; Preferably, the curtain board is white, without different color blocks or color spots, with a thickness of 10 mm or more, made of PP board, etc., and with a size of 5800 mm in length × 5200 mm in width; Preferably, the surface should be smooth and no bubbles should be allowed to appear during pasting; Preferably, after the curtain board is installed on the column 5, 12 points are taken from the four sides of the curtain board, 4 points on the long side and 3 points on the short side, evenly distributed, to confirm that the plane error value is ≤3 mm; Preferably, the whole surface of the assembled grid plate 3 is flat, without deformation and reflection, and the surface flatness is measured by a 1.5 m steel ruler or confirmed by a level ruler to be ≤5 mm; the levelness of the entire surface of the grid plate 3 is consistent, and the distance between the grid plate 3 and the warped glass back plate 6 is adjusted during installation; the non-reflective grid plate 3 can effectively reduce the reflection and scattering of light on the plate surface, avoiding the interference of these reflected lights on the photographed object, thereby improving the clarity and contrast of the photographed image; the flat plate surface ensures that the light can be evenly and stably irradiated on the photographed object during shooting, reducing the image distortion or blur caused by the uneven plate surface, making the shooting result more accurate; Preferably, if the grille plate 3 is made of multiple plates, the joints of the jointed plates should be tightly connected and should be treated with a white background or black strips for covering; Preferably, the steel rope 1 is a steel wire rope with a diameter of 6 mm, a safety factor of 6, and a maximum lifting weight of a single steel rope 1 of 340 kg.
[0022] The present invention also provides a working method of a warped horizontal shooting device, based on the above-mentioned warped horizontal shooting device, comprising the following steps: (1) Paste the grille curtain panel grid paper 10 on the grille curtain panel grid paper pasting position 4 on the side of the curtain panel, then place the grille panel 3 on the column 5, use a plurality of steel ropes 1 to lift the grille panel 3, and move the supporting profile 8 to the lower part of the grille panel 3 through the universal wheel; the grille panel 3 is quickly and accurately positioned, which not only simplifies the installation steps, but also improves the stability and safety of the equipment; (2) Press the pneumatic top block 9, the pneumatic top block 9 is pushed out, and the glass substrate is placed on the warped glass back plate 6. The glass substrate presses the pneumatic top block 9, and the pneumatic top block 9 is pressed again, and the pneumatic top block 9 is retracted without affecting the shooting; (3) Install the camera in the camera installation hole 2 to take pictures. The camera can be directly aimed at the photographed object (glass substrate) by installing the camera installation hole 2 in the center of the grid plate 3 to achieve precise focus and ensure the clarity and accuracy of the photographed image. The flat and non-reflective characteristics of the grid plate 3 and the reasonable layout design reduce the influence of light reflection and scattering on the photographing results, further improving the quality of the photographed image. (4) After the shooting is completed, the pneumatic top block 9 is pressed, and the pneumatic top block 9 is pushed out to lift the glass substrate away from the warped glass back plate 6. The pneumatic top block 9 is pressed again, and the pneumatic top block 9 is retracted. By using the push-out and retracting functions of the pneumatic top block 9, the glass substrate can be easily placed on the warped glass back plate 6 or lifted away, which greatly simplifies the loading and unloading process of the glass substrate and improves the work efficiency. Preferably, there is no image distortion of the grille bars in the photograph; Preferably, each time shooting is performed, the external fill light system is turned on to unify the bright field, dark field and low-angle dark field shooting effects, so that the placement of the warped shooting board surface is no longer restricted.
[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A warped horizontal shooting device, characterized in that: The invention comprises a warped glass back plate (6) parallel to the ground, a pneumatic top block (9) being arranged on the warped glass back plate (6), a supporting profile (8) being installed at the bottom of the warped glass back plate (6), a plurality of columns (5) being installed on the outside of the warped glass back plate (6), a grille plate (3) being installed on the top of the columns (5), the grille plate (3) comprising a curtain plate, a grille curtain plate grid paper (10) being attached to the curtain plate through a grille curtain plate grid paper attaching position (4) arranged on the side, a camera installation hole (2) being arranged on the grille plate (3), a camera being installed on the camera installation hole (2), and a plurality of steel ropes (1) being fixed on the grille plate (3).
2. A warped horizontal shooting device according to claim 1, characterized in that: A black film is attached to the surface of the warped glass back plate (6).
3. The warped horizontal shooting device according to claim 1, characterized in that: The surface of the warped glass back plate (6) is provided with a plurality of grooves (7).
4. The warped horizontal shooting device according to claim 1, characterized in that: The supporting profile (8) is equipped with a self-locking universal wheel.
5. The warped horizontal shooting device according to claim 1, characterized in that: The number of the columns (5) is 4.
6. The warped horizontal shooting device according to claim 1, characterized in that: The minimum diameter of the column (5) is calculated by estimating the center load of the grid plate (3) and the column (5) when they are working, firstly considering the grid plate (3) and the column (5) as absolutely rigid objects, and secondly assuming that the column (5) evenly bears the force generated by the grid plate (3) when it is working.
7. The warped horizontal shooting device according to claim 6, characterized in that: The minimum diameter calculation formula of the column (5) is: （1） （2） In the formula, is the stress to which the column (5) is subjected during operation; is the nominal pressure of the grid plate (3) and the column (5); is the minimum diameter allowed for the column (5); is the number of columns (5), is the allowable stress when the material of the column (5) is 45% rigid.
8. The warped horizontal shooting device according to claim 1, characterized in that: The surface of the grid plate (3) is flat and non-reflective.
9. The warped horizontal shooting device according to claim 1, characterized in that: The camera installation hole (2) is arranged at the center of the grid plate (3).
10. A working method of a warped horizontal shooting device, based on the warped horizontal shooting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, pasting the grille curtain panel grid paper (10) on the grille curtain panel grid paper pasting position (4), placing the grille panel (3) on the column (5), using a plurality of steel ropes (1) to lift the grille panel (3), and moving the supporting profile (8) to the lower part of the grille panel (3); S2, pressing the pneumatic top block (9), the pneumatic top block (9) is pushed out, and the glass substrate is placed on the warped glass back plate (6), the glass substrate is pressed against the pneumatic top block (9), and the pneumatic top block (9) is pressed again, and the pneumatic top block (9) is retracted; S3, installing the camera in the camera installation hole (2) to take pictures; S4, after the photographing is completed, the pneumatic top block (9) is pressed, the pneumatic top block (9) is pushed out, and the glass substrate is lifted away from the warped glass back plate (6), and the pneumatic top block (9) is pressed again, and the pneumatic top block (9) is retracted.