Correction equipment and correction method for adhesive film and glass of photovoltaic module

Abstract

The invention relates to the technical field of photovoltaic module adhesive film and glass correction, and discloses photovoltaic module adhesive film and glass correction equipment and method.The photovoltaic module adhesive film and glass correction equipment comprises a visual module, a correction and deviation rectification module, an adsorption module and a control module, the correction and deviation rectification module comprises a bottom plate, and the upper surface of the bottom plate is fixedly connected with a limiting frame; a first motor is fixedly connected to the interior of the limiting frame, a first gear is fixedly arranged at the output end of the first motor, a first rack is connected to the tooth end of the first gear in a meshed mode, a supporting plate is fixedly connected to the outer wall of the first rack, and the outer wall of the supporting plate is slidably connected to the interior of the limiting frame. The four industrial cameras are used for collecting images of the four corners of the glass in real time, and the control module is combined for intelligent analysis and precise calculation of deviation correction positions of the first motor and the second motor, so that rapid and automatic alignment of the glass and the adhesive film is realized, manual adjustment errors are greatly reduced, and the assembly precision and the production efficiency of the photovoltaic module are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of calibration of photovoltaic module encapsulant film and glass, and specifically provides a calibration device and method for photovoltaic module encapsulant film and glass. Background Art

[0002] During the production process of photovoltaic modules, the precise lamination of the encapsulant film and glass is crucial for product quality. Photovoltaic encapsulant film is a thin film material used for the encapsulation of photovoltaic modules, mainly applied to the module-level encapsulation of solar panels. It plays a role in bonding the solar cells with the photovoltaic glass and the backsheet, and is one of the key materials affecting the service life and power generation efficiency of photovoltaic modules.

[0003] Traditional encapsulant film laying processes mainly rely on manual adjustment or semi-automatic equipment for positioning, which have problems such as low efficiency and poor accuracy. Manual operation is not only time-consuming and laborious, but also prone to film offset, wrinkles or bubbles due to visual errors, affecting the performance and yield of the modules. Some existing rectification devices mostly adjust the encapsulant film laying process, with a relatively slow rectification speed and difficulty in meeting the requirements of high-efficiency production. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a calibration device and method for photovoltaic module encapsulant film and glass, which solves the problems of low efficiency and insufficient accuracy in traditional manual calibration and slow speed of existing rectification devices.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A calibration device for photovoltaic module encapsulant film and glass includes a vision module, a rectification and deviation correction module, an adsorption module and a control module. The vision module is disposed above the laminated area of the glass and the encapsulant film, and is used to capture images of the four corners of the glass and the encapsulant film and identify their offset amounts. The rectification and deviation correction module is used to provide lateral movement power according to the instructions of the control module to adjust the position of the glass. The adsorption module has a vacuum adsorption surface for adsorbing the encapsulant film. The control module is electrically connected to the vision module, the rectification and deviation correction module and the adsorption module respectively, and is used to analyze the offset amounts of the four corners collected by the vision module, generate a glass movement path instruction, control the power drive mechanism of the rectification and deviation correction module to push the glass to the target alignment position, and start the vacuum adsorption of the adsorption module to fix the encapsulant film after the glass is rectified.

[0006] Preferably, the rectification and deviation correction module includes a bottom plate. A limiting frame is fixedly connected to the upper surface of the bottom plate. A first motor is fixedly connected inside the limiting frame. A first gear is fixedly arranged at the output end of the first motor. The tooth end of the first gear is meshed with a first rack. A support plate is fixedly connected to the outer wall of the first rack. The outer wall of the support plate is slidably connected inside the limiting frame. A support assembly is arranged on the outer wall of the support plate. A second motor is fixedly connected inside the support plate. A second gear is fixedly connected to the output end of the second motor. The tooth end of the second gear is meshed with a second rack.

[0007] Preferably, the support assembly includes a limiting block. The lower surface of the limiting block is fixedly connected to the upper surface of the support plate. The outer wall of the limiting block is slidably connected with a placement plate. The lower surface of the placement plate is fixedly connected to the outer wall of the second rack. A sliding groove is formed inside the placement plate. The outer wall of the limiting block is slidably connected to the inner wall of the sliding groove.

[0008] Preferably, the vision module includes a support frame. The outer wall of the support frame is fixedly connected to the upper surface of the bottom plate. An industrial camera and a fill light are fixedly connected to the outer wall of the support frame. The fill lights are located on both sides of the industrial camera to supplement light sources for the industrial camera. The outer wall of the control module is fixedly connected to the upper surface of the support frame.

[0009] Preferably, the adsorption module includes a hydraulic cylinder. The outer wall of the hydraulic cylinder is fixedly connected inside the support frame. A limiting plate is fixedly connected to the output end of the hydraulic cylinder. A first limiting column and a second limiting column are slidably connected inside the limiting plate.

[0010] Preferably, the top end of the first limiting column is fixedly connected to the outer wall of the support frame. The bottom end of the second limiting column is fixedly connected to a connecting plate. A telescopic rod is fixedly connected to the upper surface of the connecting plate. The top end of the telescopic rod is fixedly connected to the lower surface of the limiting plate.

[0011] Preferably, a spring is slidably connected to the outer wall of the telescopic rod. One end of the spring is fixedly connected to the lower surface of the limiting plate. The other end of the spring is fixedly connected to the upper surface of the connecting plate. A suction cup is fixedly connected to the lower surface of the connecting plate. [[ID=I7]]

[0012] Preferably, a support frame is fixedly connected to the outer wall of the connecting plate. A third motor is fixedly connected to the outer wall of the support frame. A threaded rod is fixedly arranged at the output end of the third motor. The outer wall of the threaded rod is rotatably connected inside the support frame.

[0013] Preferably, a connecting frame is threadedly connected to the outer wall of the threaded rod. A scraper is fixedly connected to the outer wall of the connecting frame. A limiting groove is formed inside the support frame. The outer wall of the connecting frame is slidably connected to the inner wall of the limiting groove.

[0014] Preferably, a calibration method for a calibration device for a photovoltaic module glue film and glass, which is used for a calibration device for a photovoltaic module glue film and glass according to any one of claims 1-9, the method comprising the following steps: S1. Standard position placement: Place the glass at the standard position of the device, and manually lay the glue film to make it centered; S2. Image acquisition: Use a camera to take pictures of the four corner areas of the glass and the glue film to obtain a teaching image of the standard position; S3. Image processing: Perform filtering and binarization processing on the teaching image, search for edges and calculate the vertex coordinates of the glue film and the glass; S4. Coordinate conversion: Convert the image coordinates of the four vertices to the same device coordinate system to form standard position data; S5. Data storage: Save the converted teaching data as the reference comparison data for the subsequent calibration process.

[0015] Working principle: When the device needs to be used, first place the glass to be calibrated with the glue film on the placement plate, and then drive the first gear to rotate through the first motor. The first gear drives the support plate to slide in the limit frame through the first rack. At the same time, drive the second gear to rotate through the second motor. Under the limit of the chute, the second gear drives the placement plate to slide on the limit block through the second rack, so as to correct the glass. At this time, four industrial cameras respectively collect images of the four corners of the glass to position the glass and the glue film. Under the action of the control module, calculate the deviation correction positions of the first motor and the second motor; Then push the limit plate to slide on the first limit post through the hydraulic cylinder. The limit plate drives the suction cup on the connecting plate to contact the glue film through the telescopic rod. When the suction cup contacts the glue film, under the blocking action, the second limit post on the connecting plate slides in the limit plate. At this time, the telescopic rod will be squeezed and the spring will be compressed, so as to suck up the glue film. The first motor and the second motor move according to the calculated positions, push the glass to the ideal position, and then the suction cup puts down the glue film to complete the fitting; Then start the third motor. Drive the threaded rod to rotate in the support frame through the third motor. Through the rotation of the threaded rod, drive the connecting frame to slide in the limit groove and then drive the scraper to move, so as to eliminate the wrinkles of the glue film; With the cooperation of the industrial camera and the control module, the device not only achieves the effect of flexibly adjusting the position of the glass, but also achieves the effect of buffering and adsorbing the glue film. At the same time, it also achieves the effect of scraping the glue film to eliminate wrinkles, and thus jointly achieves the effect of automatically calibrating the glue film and the glass.

[0016] The present invention provides a calibration device and a calibration method for a photovoltaic module glue film and glass. It has the following beneficial effects: 1. In the present invention, four industrial cameras are used to collect images of the four corners of the glass in real time. Combined with intelligent analysis by the control module, the deviation correction positions of the first motor and the second motor are accurately calculated, realizing the rapid automatic alignment of the glass and the adhesive film. Through the rack and pinion transmission and the limit structure, the accuracy and stability of the glass position adjustment are ensured, significantly reducing the manual adjustment error and improving the assembly accuracy and production efficiency of the photovoltaic module.

[0017] 2. When the hydraulic cylinder is used to push the suction cup to contact the adhesive film in the present invention, the buffer design of the telescopic rod and the spring can absorb the impact force, avoiding hard contact damage to the adhesive film. After the suction cup adsorbs, the system automatically adjusts the glass position according to the calculated data, realizing the stress-free and accurate fitting of the adhesive film and the glass, effectively preventing bubbles and offsets, and ensuring the encapsulation quality of the module.

[0018] 3. In the present invention, the third motor drives the threaded rod to drive the scraper to move smoothly along the limit groove, automatically scraping the wrinkles of the adhesive film to ensure a smooth and defect-free surface. The structural design is stable and reliable, and can adapt to the treatment of adhesive films of different sizes, further improving the appearance consistency and optical performance of the photovoltaic module, and reducing subsequent rework.

[0019] 4. Through the mechanical automation structure cooperating with the vision positioning system, the rapid and accurate alignment of the adhesive film and the glass is realized. Compared with the traditional deviation correction method for adhesive film laying, this device can complete the position correction more efficiently; compared with manual operation, its automation degree is higher, significantly reducing the labor intensity and improving the production efficiency, providing reliable technical support for the large-scale manufacturing of photovoltaic modules. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 2 is a schematic diagram of the fill light of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 3 is a schematic diagram of the support frame of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 4 is a schematic diagram of the limit block of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 5 is a schematic diagram of the placement board of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 6 is a schematic diagram of the connecting plate of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 7 is a schematic diagram of the suction cup of a correction device for the adhesive film and glass of a photovoltaic module according to the present invention; Figure 8A schematic diagram of a threaded rod of a device for aligning adhesive film and glass of a photovoltaic module according to the present invention; Figure 9 This is a flow chart of a method for calibrating a photovoltaic module film and glass according to the present invention; Figure 10 This is a module architecture diagram of a device for calibrating adhesive films and glass for photovoltaic modules according to the present invention; Figure 11 This is a flow chart of the operation of a device for calibrating adhesive films and glass for photovoltaic modules according to the present invention; Figure 12 This is a flowchart of the algorithm processing of a device for calibrating the adhesive film and glass of photovoltaic modules according to the present invention.

[0020] Among them, 1. base plate; 2. limit frame; 3. support frame; 4. first motor; 5. first gear; 6. first rack; 7. support plate; 8. limit block; 9. industrial camera; 10. second motor; 11. second gear; 12. second rack; 13. storage plate; 14. slide; 15. fill light; 16. hydraulic cylinder; 17. first limit column; 18. second limit column; 19. connecting plate; 20. telescopic rod; 21. spring; 22. suction cup; 23. limit plate; 24. support frame; 25. third motor; 26. threaded rod; 27. connecting frame; 28. scraper; 29. limit slot; 30. control module. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] Please see the attached Figure 1 -Attached Figure 12 An embodiment of the present invention provides a correction device for photovoltaic module film and glass, including a vision module, a correction module, an adsorption module and a control module 30. The vision module is arranged above the laminated area of the glass and the film, and is used to capture the four corner position images of the glass and the film and identify their offsets. The correction module is used to provide lateral movement power to adjust the position of the glass according to the instructions of the control module 30. The adsorption module has a vacuum adsorption surface for adsorbing the film. The control module 30 is electrically connected to the vision module, the correction module and the adsorption module respectively, and is used to analyze the four corner offsets collected by the vision module, generate a glass movement path instruction, and control the power drive mechanism of the correction module to push the glass to the target alignment position. After the glass is corrected, the vacuum adsorption of the adsorption module is started to fix the film.

[0023] Specifically, the four corners of the glass and the adhesive film are aligned through the vision module, and then the entire lamination area can be covered, thus avoiding errors caused by single-point detection. According to the real-time feedback data of the vision module, the alignment and deviation correction module can perform fine-tuning to ensure that the adhesive film is completely aligned with the glass. The adsorption module is arranged at the adhesive film laying station and uses zoned control vacuum adsorption to cover the effective area of the adhesive film and avoid local deformation of the adhesive film. The control module calculates the path that the glass needs to move by receiving the four-corner offset data of the vision module and through coordinate transformation algorithms.

[0024] Please refer to the appendix Figure 1 - appendix Figure 5 Specifically, the alignment and deviation correction module includes a bottom plate 1. A limit frame 2 is fixedly connected to the upper surface of the bottom plate 1. A first motor 4 is fixedly connected inside the limit frame 2. A first gear 5 is fixedly arranged at the output end of the first motor 4. The tooth end of the first gear 5 is meshed with a first rack 6. A support plate 7 is fixedly connected to the outer wall of the first rack 6. The outer wall of the support plate 7 is slidably connected inside the limit frame 2. A support assembly is arranged on the outer wall of the support plate 7. A second motor 10 is fixedly connected inside the support plate 7. A second gear 11 is fixedly connected to the output end of the second motor 10. The tooth end of the second gear 11 is meshed with a second rack 12; Specifically, the placement plate 13 serves to place the glass for the adhesive film to be corrected. The first motor 4 drives the first gear 5 to rotate. The first gear 5 drives the support plate 7 to slide in the limit frame 2 through the first rack 6. The limit frame 2 supports and limits the support plate 7. The second motor 10 drives the second gear 11 to rotate, and then the second gear 11 drives the placement plate 13 to slide on the limit block 8 through the second rack 12, thereby aligning the glass. Under the action of the control module 30, the deviation correction positions of the first motor 4 and the second motor 10 can be calculated. Please refer to the appendix Figure 1 - appendix Figure 5 Specifically, the support assembly includes a limit block 8. The lower surface of the limit block 8 is fixedly connected to the upper surface of the support plate 7. The outer wall of the limit block 8 is slidably connected to a placement plate 13. The lower surface of the placement plate 13 is fixedly connected to the outer wall of the second rack 12. A chute 14 is opened inside the placement plate 13. The outer wall of the limit block 8 is slidably connected to the inner wall of the chute 14.

[0025] Specifically, the chute 14 limits the limit block 8. The support plate 7 supports and fixes the limit block 8. The limit block 8 supports and limits the placement plate 1, thereby ensuring the stability of the placement plate 13 during movement and enabling more accurate positioning of the glass and the adhesive film.

[0026] Please refer to the appendix Figure 1 - appendixFigure 3 , the vision module includes a support frame 3. The outer wall of the support frame 3 is fixedly connected to the upper surface of the bottom plate 1. An industrial camera 9 and a supplementary light 15 are fixedly connected to the outer wall of the support frame 3. The supplementary light 15 is located on both sides of the industrial camera 9 to supplement light sources for the industrial camera 9. The outer wall of the control module 30 is fixedly connected to the upper surface of the support frame 3.

[0027] Specifically, the support frame 3 plays a role in supporting and fixing the industrial camera 9 and the supplementary light 15. Among them, the four industrial cameras 9 respectively play a role in collecting images of the four corners of the glass, thus playing an auxiliary role in positioning the glass and the film. Among them, the eight supplementary lights 15 play a role in providing light sources for the industrial cameras 9 at each corner, thus making the images of the four corners of the glass clearer and more accurate.

[0028] Please refer to the attached Figure 1 、attachment Figure 3 、attachment Figure 6 and attachment Figure 7 , the adsorption module includes a hydraulic cylinder 16. The outer wall of the hydraulic cylinder 16 is fixedly connected to the inside of the support frame 3. The output end of the hydraulic cylinder 16 is fixedly connected to a limit plate 23. A first limit post 17 and a second limit post 18 are slidably connected inside the limit plate 23; the top end of the first limit post 17 is fixedly connected to the outer wall of the support frame 3, and the bottom end of the second limit post 18 is fixedly connected to a connecting plate 19. An expansion rod 20 is fixedly connected to the upper surface of the connecting plate 19, and the top end of the expansion rod 20 is fixedly connected to the lower surface of the limit plate 23; a spring 21 is slidably connected to the outer wall of the expansion rod 20. One end of the spring 21 is fixedly connected to the lower surface of the limit plate 23, and the other end of the spring 21 is fixedly connected to the upper surface of the connecting plate 19. A suction cup 22 is fixedly connected to the lower surface of the connecting plate 19.

[0029] Specifically, the hydraulic cylinder 16 plays a role in pushing the limit plate 23 to slide on the first limit post 17. The first limit post 17 plays a role in supporting and limiting the limit plate 23, thus ensuring the stability of the limit plate 23 during the sliding process. The limit plate 23 drives the suction cup 22 on the connecting plate 19 to contact the film through the expansion rod 20. The suction cup 22 plays a role in adsorbing the film. When the suction cup 22 contacts the film, under the blocking effect of the glass and the film, it plays a role in making the second limit post 18 on the connecting plate 19 slide in the limit plate 23. The limit plate 23 plays a role in limiting the connecting plate 19 through the second limit post 18. By squeezing the expansion rod 20 and compressing the spring 21, under the rebounding effect of the spring 21, the film can be sucked up. Then, the first motor 4 and the second motor 10 move according to the calculated position, and the glass can be pushed to the ideal position. Then the suction cup 22 puts down the film, and the lamination is completed.

[0030] Please refer to the attached Figure 1 、attachmentFigure 2 , appendage Figure 7 and appendage Figure 8 , a support frame 24 is fixedly connected to the outer wall of the connecting plate 19, a third motor 25 is fixedly connected to the outer wall of the support frame 24, a threaded rod 26 is fixedly arranged at the output end of the third motor 25, and the outer wall of the threaded rod 26 is rotatably connected inside the support frame 24; a connecting frame 27 is threadedly connected to the outer wall of the threaded rod 26, a scraper 28 is fixedly connected to the outer wall of the connecting frame 27, a limiting groove 29 is formed inside the support frame 24, and the outer wall of the connecting frame 27 is slidably connected to the inner wall of the limiting groove 29.

[0031] Specifically, the sizes of both the support frame 24 and the connecting plate 19 are larger than those of the placing plate 13. Thus, when adsorbing the adhesive film, the support frame 24 will not contact the glass and the adhesive film. After the fitting is completed, the support frame 24 is lifted by a certain distance through the hydraulic cylinder 16. At this time, the third motor 25 drives the threaded rod 26 to rotate in the support frame 24. The support frame 24 supports and limits the threaded rod 26. Through the rotation of the threaded rod 26, the connecting frame 27 is driven to slide in the limiting groove 29. The limiting groove 29 supports and limits the connecting frame 27. Thus, the scraper 28 is driven to move, and the effect of eliminating the wrinkles of the adhesive film is achieved.

[0032] Please refer to appendage Figure 1 - appendage Figure 12 , for the calibration method of the calibration device for the photovoltaic module adhesive film and glass, for a calibration device for the photovoltaic module adhesive film and glass as described above, the method includes the following steps: S1. Placing at the standard position: Place the glass at the standard position of the device, and manually lay the adhesive film to make it centered; S2. Image acquisition: Use a camera to photograph the four corner areas of the glass and the adhesive film to obtain a teaching image at the standard position; S3. Image processing: Perform filtering and binarization processing on the teaching image, search for the edges and calculate the vertex coordinates of the adhesive film and the glass; S4. Coordinate conversion: Convert the image coordinates of the four vertices to the same device coordinate system to form standard position data; S5. Data storage: Save the converted teaching data as the reference comparison data for the subsequent calibration process.

[0033] Specifically, when processing the image, two strip lights are used for side lighting, the camera is vertically downward, and a black background board is used. In the image, the glue film is white and the glass is transparent. Since the background board is black, the contrast between the edges of the glue film and the glass in the image is relatively obvious. By using image filtering and binarization operations, the glue film and the glass can be clearly identified; then camera calibration and motor calibration are performed. A large checkerboard with a size of 2.5m * 1.3m is used to cover three-quarters of the camera's field of view. Multiple points are selected, and the coordinates of the checkerboard and the image coordinates are made to correspond one by one to calculate the conversion relationship between the two coordinates, so as to realize the conversion of the image coordinates of the four cameras to the same checkerboard coordinates. The motor moves in a straight line, and the motor moves to calibration position 1 and calibration position 2. The camera records these two positions and converts them to the same coordinate system through the relationship of camera calibration. Thus, the position of the motor in the checkerboard coordinate system can be determined; then the deviation is calculated. In the same coordinate system, given the current position of the glue film and the positions of the glass and the glue film during teaching, according to the travel trajectory calibrated by the motor, the position where the motor reaches the edge of the current glue film can be deduced, so as to confirm the distance and direction that the motor needs to move. It is also necessary to calculate the side length of the glue film to determine whether the glue film is wrinkled or deformed, and compensate the calculated motor movement distance through the difference in side lengths to ensure that the motor will not damage the glass.

[0034] The algorithm processing flow of a calibration device for the glue film and glass of a photovoltaic module is as follows: 1. Camera calibration First, camera calibration is carried out. This step requires the use of a large checkerboard to combine the image coordinates of the four cameras. In this way, it can be ensured that the image coordinates of all cameras are in the same coordinate system, laying a foundation for subsequent image processing and coordinate conversion.

[0035] 2. Motor calibration Next is motor calibration. The motor moves in a straight line and goes to two positions. The camera takes pictures to record the two positions where the motor moves and converts them to the checkerboard coordinates. The purpose of this step is to determine the position of the motor in the checkerboard coordinate system for subsequent image processing and coordinate conversion.

[0036] 3. Teaching Then teaching is carried out. The glass is placed at the standard position, and the glue film is manually laid in the center; the camera is used to collect the teaching image. This step is to obtain the image data of the device at the standard position as the benchmark for subsequent data comparison.

[0037] 4. Process the image The collected image is processed, including filtering, binarization, searching for edges, and calculating vertices. These steps are to extract useful information from the image, such as vertex coordinates, for subsequent coordinate conversion.

[0038] 5. Convert coordinates Convert the vertex coordinates in the four images to the same coordinate system. The purpose of this step is to unify the vertex coordinates in different images into one coordinate system, facilitating subsequent data comparison and device deviation correction.

[0039] 6. Save the teaching data Save the processed teaching data for subsequent data comparison.

[0040] 7. Acquire images The PLC controls the light source to turn on and triggers the camera to capture images. This step is to obtain the image data of the device at the current position.

[0041] 8. Process the images Process the captured images, including filtering, binarization, edge searching, and vertex calculation. This step is the same as the image processing during teaching, and the purpose is to extract useful information from the images.

[0042] 9. Convert coordinates Convert the vertex coordinates in the four images to the same coordinate system. This step is the same as the coordinate conversion during teaching, and the purpose is to unify the vertex coordinates in different images into one coordinate system.

[0043] 10. Data comparison Compare the current coordinate data with the teaching data and calculate the deviation correction values that each motor should travel. The purpose of this step is to find the deviation between the current position of the device and the standard position, providing a basis for subsequent device deviation correction.

[0044] 11. Give the result Send the calculated data to the PLC, and the device performs deviation correction. This step is the ultimate goal of the entire process. By controlling the device through the PLC for deviation correction, it ensures that the device operates at the correct position.

[0045] Through the above steps, precise calibration and deviation correction of automated devices can be achieved, ensuring the normal operation of the devices. This process is not only applicable to the calibration of cameras and motors but can also be extended to other automated devices that require precise positioning and control.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calibration device for the glue film and glass of a photovoltaic module, comprising a vision module, a rectification and deviation correction module, an adsorption module and a control module (30), characterized in that, The vision module is arranged above the laminated area of the glass and the film, and is used to capture the images of the four corners of the glass and the film and identify their offsets. The alignment and deviation correction module is used to provide lateral movement power according to the instructions of the control module (30) to adjust the position of the glass. The adsorption module has a vacuum adsorption surface and is used to adsorb the film. The control module (30) is electrically connected to the vision module, the alignment and deviation correction module and the adsorption module respectively, and is used to analyze the offsets of the four corners collected by the vision module, generate a glass movement path instruction, and control the power driving mechanism of the alignment and deviation correction module to push the glass to the target alignment position. After the glass is aligned, the vacuum adsorption of the adsorption module is started to fix the film.

2. The calibration device for the glue film and glass of a photovoltaic module according to claim 1, characterized in that, The alignment and deviation correction module includes a bottom plate (1). The upper surface of the bottom plate (1) is fixedly connected with a limit frame (2). A first motor (4) is fixedly connected inside the limit frame (2). The output end of the first motor (4) is fixedly provided with a first gear (5). The tooth end of the first gear (5) is meshed with a first rack (6). The outer wall of the first rack (6) is fixedly connected with a support plate (7). The outer wall of the support plate (7) is slidably connected inside the limit frame (2). A support assembly is arranged on the outer wall of the support plate (7). A second motor (10) is fixedly connected inside the support plate (7). The output end of the second motor (10) is fixedly connected with a second gear (11). The tooth end of the second gear (11) is meshed with a second rack (12).

3. A calibration device for a photovoltaic module adhesive film and glass according to claim 2, characterized in that, The support assembly includes a limit block (8). The lower surface of the limit block (8) is fixedly connected to the upper surface of the support plate (7). A placement plate (13) is slidably connected to the outer wall of the limit block (8). The lower surface of the placement plate (13) is fixedly connected to the outer wall of the second rack (12). A chute (14) is opened inside the placement plate (13). The outer wall of the limit block (8) is slidably connected to the inner wall of the chute (14).

4. A calibration device for a photovoltaic module adhesive film and glass according to claim 1, characterized in that, The vision module includes a support frame (3). The outer wall of the support frame (3) is fixedly connected to the upper surface of the bottom plate (1). An industrial camera (9) and a fill light (15) are fixedly connected to the outer wall of the support frame (3). The fill light (15) is located on both sides of the industrial camera (9) to supplement light sources for the industrial camera (9). The outer wall of the control module (30) is fixedly connected to the upper surface of the support frame (3).

5. The calibration device for the glue film and glass of a photovoltaic module according to claim 4, characterized in that, The adsorption module includes a hydraulic cylinder (16). The outer wall of the hydraulic cylinder (16) is fixedly connected inside the support frame (3). The output end of the hydraulic cylinder (16) is fixedly connected with a limit plate (23). A first limit post (17) and a second limit post (18) are slidably connected inside the limit plate (23).

6. The calibration device for the adhesive film and glass of a photovoltaic module according to claim 5, characterized in that, The top end of the first limit post (17) is fixedly connected to the outer wall of the support frame (3). The bottom end of the second limit post (18) is fixedly connected with a connecting plate (19). An expansion link (20) is fixedly connected to the upper surface of the connecting plate (19). The top end of the expansion link (20) is fixedly connected to the lower surface of the limit plate (23).

7. A calibration device for a photovoltaic module adhesive film and glass according to claim 6, characterized in that, A spring (21) is slidably connected to the outer wall of the telescopic rod (20). One end of the spring (21) is fixedly connected to the lower surface of the limit plate (23), and the other end of the spring (21) is fixedly connected to the upper surface of the connecting plate (19). A suction cup (22) is fixedly connected to the lower surface of the connecting plate (19).

8. A calibration device for a photovoltaic module adhesive film and glass according to claim 7, characterized in that, A support frame (24) is fixedly connected to the outer wall of the connecting plate (19). A third motor (25) is fixedly connected to the outer wall of the support frame (24). A threaded rod (26) is fixedly arranged at the output end of the third motor (25). The outer wall of the threaded rod (26) is rotatably connected to the inside of the support frame (24).

9. A calibration device for a photovoltaic module adhesive film and glass according to claim 8, characterized in that, A connecting frame (27) is threadedly connected to the outer wall of the threaded rod (26). A scraper (28) is fixedly connected to the outer wall of the connecting frame (27). A limit groove (29) is formed inside the support frame (24). The outer wall of the connecting frame (27) is slidably connected to the inner wall of the limit groove (29).

10. A calibration method for a calibration device of a photovoltaic module adhesive film and glass, characterized in that, A calibration device for a photovoltaic module adhesive film and glass according to any one of claims 1-9, the method comprising the following steps: S1. Standard position placement: Place the glass at the standard position of the device, and manually lay the adhesive film to make it centered. S2. Image acquisition: Use a camera to photograph the four corner regions of the glass and the adhesive film to obtain a teaching image of the standard position. S3. Image processing: Perform filtering and binarization processing on the teaching image, search for edges and calculate the vertex coordinates of the adhesive film and the glass. S4. Coordinate conversion: Convert the image coordinates of the four vertices to the same device coordinate system to form standard position data. S5. Data storage: Save the converted teaching data as the reference comparison data for the subsequent calibration process.

Images