Quantitative testing method for stress spot intensity of photovoltaic glass

Abstract

The invention belongs to the technical field of glass inspection, and particularly relates to a photovoltaic glass stress spot intensity quantitative inspection method, which comprises the following steps: S1, preparing a measuring instrument, and fixedly mounting the measuring instrument; s2, placing the to-be-detected glass on a detection mechanism for fixing, and conveying the to-be-detected glass to a detection port of a measuring instrument for detection; s3, irradiating the to-be-detected glass by using a light-emitting module of the measuring instrument, and acquiring a stress spot image of the glass by using an acquisition module of the measuring instrument; and S4, analyzing the acquired stress spot image by using an image processing technology of the measuring instrument to obtain stress spot intensity information of the glass. According to the invention, continuous photovoltaic glass detection work can be realized, the detection efficiency is greatly improved, the detection height can be rapidly adjusted according to needs, rapid clamping of to-be-detected glass can be realized, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of glass inspection, and in particular relates to a quantitative inspection method for the intensity of stress spots in photovoltaic glass. Background Art

[0002] When the glass is tempered or semi-tempered, since the equipment cannot achieve absolutely uniform heating and cooling, unevenly distributed stress will be formed inside the glass, making the glass an anisotropic material. When light is incident on the anisotropic material, the refraction angle and optical path of the light will be affected by the material, which will affect the photovoltaic conversion efficiency and actual use of photovoltaic glass. Therefore, it is currently necessary to conduct quantitative testing on the strength of stress spots on photovoltaic glass to determine whether the performance of photovoltaic glass is affected.

[0003] The invention patent with authorization announcement number CN105973843B discloses a method for quantitatively testing the intensity of stress spots on tempered / semi-tempered glass, wherein the color value after polarized light is incident on the stress spot on the tempered or semi-tempered glass is detected by the measuring instrument and the color value is expressed by chromaticity coordinates, so as to quantitatively distinguish the intensity of stress spots. The use of this inspection method can effectively solve the existing problem of judging by the thickness, area size and distribution degree of different interference fringes generated by polarized light at the stress spot of glass by artificial observation. This method mainly relies on the experience accumulated by engineers for many years, is affected by environmental factors, and the judgment is subjective, not accurate, not rigorous, and has the problem of great difficulty in operation in actual production control, difficulty in popularization and promotion, and difficulty in providing reliable data support for equipment and process debugging. At the same time, this inspection method is simple and practical, easy to promote, but the detection of glass is one by one, and the overall detection efficiency is low, which greatly affects the detection efficiency.

[0004] To this end, we propose a quantitative inspection method for stress spot intensity of photovoltaic glass to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method for quantitatively testing the intensity of stress spots in photovoltaic glass in view of the above problems.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for quantitatively testing the intensity of stress spots of photovoltaic glass, comprising the following steps: S1. Prepare the measuring instrument and install it in a fixed manner; S2. The glass to be tested is placed on the testing mechanism for fixing, and the glass to be tested is transported to the testing port of the measuring instrument for testing; S3. Using the light-emitting module of the measuring instrument to illuminate the glass to be tested, and using the acquisition module of the measuring instrument to collect the stress spot image of the glass; S4. Then use the image processing technology of the measuring instrument to analyze the collected stress spot image to obtain the stress spot intensity information of the glass; S5. Determine whether the glass to be tested is qualified according to the stress spot intensity information; The inspection equipment used in the above-mentioned photovoltaic glass stress spot strength quantitative inspection method includes a base, a U-shaped vertical plate is fixedly installed on the upper end of the base, a height adjustment mechanism is installed on the upper end of the U-shaped vertical plate, and the lower output end of the height adjustment mechanism is fixedly connected to the measuring instrument body, the side walls on the opposite sides of the U-shaped vertical plate are rotatably connected to the side plates through a rotating shaft, a support plate is fixedly connected between the two side plates, a flip motor is fixedly installed on the outer wall of the U-shaped vertical plate, and the output end of the flip motor is fixedly connected to one end of the rotating shaft, and the opposite sides of the two ends of the two side plates are fixedly connected to the installation frame through the transmission shaft, the outer wall of the side plate is fixedly installed with a rotating motor, and the output end of the rotating motor is fixedly connected to one end of the transmission shaft, and the installation frame is specifically a rectangular structure, and clamping mechanisms are installed on all four sides.

[0007] In the above-mentioned method for quantitatively testing the strength of stress spots in photovoltaic glass, the height adjustment mechanism includes two horizontal plates symmetrically fixedly connected to the side walls on the opposite side of the upper end of the U-shaped vertical plate, the upper end of the horizontal plate and the lower end of the horizontal part of the U-shaped vertical plate are rotatably connected with an adjusting screw through a bearing, the two adjusting screws are externally threaded with the same lifting plate, the lifting plate is fixedly connected to the upper end of the measuring instrument body, the upper end of the adjusting screw passes through the upper end of the U-shaped vertical plate, and is fixedly connected with a driven bevel gear, the upper end of the U-shaped vertical plate is fixedly installed with a dual-axis motor, and the output ends of the dual-axis motor are fixedly connected with active bevel gears, and the active bevel gear and the driven bevel gear are meshed.

[0008] In the above-mentioned quantitative inspection method for stress spot strength of photovoltaic glass, both ends of the lifting plate are fixedly connected with limit sliders, and the inner side of the vertical portion of the U-shaped vertical plate is provided with a limit sliding groove that matches and slides with the limit slider.

[0009] In the above-mentioned method for quantitatively testing the strength of stress spots on photovoltaic glass, two bearing seats are symmetrically and fixedly connected to the upper end of the U-shaped vertical plate, and the inner wall of the bearing seat is rotatably sleeved on the output shaft of the dual-axis motor through a ball bearing.

[0010] In the above-mentioned method for quantitatively testing the strength of stress spots in photovoltaic glass, the clamping mechanism includes two positioning plates symmetrically fixedly connected to the outer wall of the mounting frame, the side walls of the positioning plates are symmetrically provided with two insertion holes, and pushing rods are movably inserted into the corresponding insertion holes, one end of the two pushing rods is fixedly connected to the same L-shaped holding plate, the rear ends of the two pushing rods are fixedly connected to the same anti-slip plate, and a pushing spring mounted on the outside of the pushing rod is fixedly connected between the L-shaped holding plate and the positioning plate.

[0011] In the above-mentioned method for quantitatively testing the strength of stress spots on photovoltaic glass, embedding grooves are provided on all four sides of the installation frame.

[0012] In the above-mentioned method for quantitatively testing the strength of stress spots in photovoltaic glass, a plurality of reinforcing ribs are symmetrically fixedly connected between the side plates and the support plates.

[0013] Compared with the prior art, the present invention provides a method for quantitatively testing the intensity of stress spots in photovoltaic glass, which has the following beneficial effects: 1. The quantitative inspection method for the strength of stress spots on photovoltaic glass is provided with a base and a U-shaped vertical plate. The flip motor drives the side plate to rotate through the rotating shaft, so that one of the installation frames rotates to the lower side of the measuring instrument body, thereby realizing a rapid quantitative inspection of the strength of stress spots on photovoltaic glass. The rotating motor drives the installation frame to rotate through the transmission shaft. Since the glass to be inspected is clamped and fixed on the four sides of the installation frame, continuous photovoltaic glass inspection work can be realized, which greatly improves the inspection efficiency.

[0014] 2. The quantitative inspection method for the strength of stress spots on photovoltaic glass starts a dual-axis motor according to the height to be inspected through a height adjustment mechanism, and the dual-axis motor drives two active bevel gears to rotate synchronously. The meshing action of the active bevel gear and the driven bevel gear drives two adjusting screws to rotate synchronously. The threaded sleeve action of the adjusting screw and the lifting plate enables the lifting plate to drive the measuring instrument body to quickly adjust the height, and the inspection height can be quickly adjusted according to the needs, which is easy to use.

[0015] 3. The quantitative inspection method for the strength of stress spots on photovoltaic glass uses a clamping mechanism to install the glass to be inspected. The anti-slip plate is pulled in turn, and the L-shaped holding plate is driven backward with the help of a pushing rod to prevent the L-shaped holding plate from blocking the installation of the photovoltaic glass. The photovoltaic glass to be inspected is placed in an embedding groove outside the installation frame to achieve initial stable positioning of the photovoltaic glass. The anti-slip plate is then released, and the pushing spring and the pushing rod push the L-shaped holding plate, so that the L-shaped holding plate is pressed against the outside of the glass to be inspected, thereby achieving rapid and stable installation of the glass to be inspected, and rapid clamping of the glass to be inspected is achieved, thereby improving inspection efficiency.

[0016] In summary: the present invention can realize continuous photovoltaic glass detection work, greatly improve the detection efficiency, can quickly adjust the detection height according to needs, can realize rapid clamping of the glass to be detected, and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a detection device for a quantitative detection method of stress spot intensity of photovoltaic glass proposed by the present invention; Figure 2 for Figure 1A schematic diagram of the structure of the mid-height adjustment mechanism; Figure 3 for Figure 1 Schematic diagram of the structure of the clamping mechanism.

[0018] In the figure: 1. base; 2. U-shaped vertical plate; 3. measuring instrument body; 4. rotating shaft; 5. side plate; 6. support plate; 7. flip motor; 8. transmission shaft; 9. installation frame; 10. rotating motor; 11. horizontal plate; 12. adjusting screw; 13. lifting plate; 14. driven bevel gear; 15. double-axis motor; 16. driving bevel gear; 17. positioning plate; 18. pushing rod; 19. L-shaped holding plate; 20. anti-slip plate; 21. pushing spring; 22. embedding groove. DETAILED DESCRIPTION

[0019] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] See also Figure 1-3 A method for quantitatively testing the intensity of stress spots in photovoltaic glass comprises the following steps: S1. Prepare the measuring instrument and install it in a fixed manner; S2. The glass to be tested is placed on the testing mechanism for fixing, and the glass to be tested is transported to the testing port of the measuring instrument for testing; S3. Using the light-emitting module of the measuring instrument to illuminate the glass to be tested, and using the acquisition module of the measuring instrument to collect the stress spot image of the glass; S4. Then use the image processing technology of the measuring instrument to analyze the collected stress spot image to obtain the stress spot intensity information of the glass; S5. Determine whether the glass to be tested is qualified according to the stress spot intensity information; The inspection equipment used in the quantitative inspection method for the strength of stress spots on photovoltaic glass includes a base 1, a U-shaped vertical plate 2 is fixedly installed on the upper end of the base 1, a height adjustment mechanism is installed on the upper end of the U-shaped vertical plate 2, and the lower output end of the height adjustment mechanism is fixedly connected to a measuring instrument body 3, the side walls on the opposite sides of the U-shaped vertical plate 2 are rotatably connected to side plates 5 through a rotating shaft 4, a support plate 6 is fixedly connected between the two side plates 5, a flip motor 7 is fixedly installed on the outer wall of the U-shaped vertical plate 2, and the output end of the flip motor 7 is fixedly connected to one end of the rotating shaft 4, the opposite sides of the two ends of the two side plates 5 are fixedly connected to an installation frame 9 through a transmission shaft 8, a rotating motor 10 is fixedly installed on the outer wall of the side plate 5, and the output end of the rotating motor 10 is fixedly connected to one end of the transmission shaft 8, and the installation frame 9 is specifically a rectangular structure, and clamping mechanisms are installed on all four sides.

[0021] The height adjustment mechanism includes two horizontal plates 11 symmetrically fixedly connected to the side walls on the opposite side of the upper end of the U-shaped vertical plate 2. The upper end of the horizontal plate 11 and the lower end of the horizontal part of the U-shaped vertical plate 2 are rotatably connected with an adjusting screw 12 through a bearing. The two adjusting screws 12 are externally threadedly sleeved with the same lifting plate 13. The lifting plate 13 is fixedly connected to the upper end of the measuring instrument body 3. The upper end of the adjusting screw 12 passes through the upper end of the U-shaped vertical plate 2 and is fixedly connected with a driven bevel gear 14. A dual-axis motor 15 is fixedly installed on the upper end of the U-shaped vertical plate 2. The output ends of both ends of the dual-axis motor 15 are fixedly connected with active bevel gears 16, and the active bevel gear 16 is meshed with the driven bevel gear 14.

[0022] Both ends of the lifting plate 13 are fixedly connected with limit sliders, and the inner side of the vertical portion of the U-shaped vertical plate 2 is provided with a limit sliding groove that matches and slides with the limit slider.

[0023] Two bearing seats are symmetrically fixedly connected to the upper end of the U-shaped vertical plate 2, and the inner wall of the bearing seat is rotatably sleeved on the output shaft of the dual-axis motor 15 through a ball bearing.

[0024] The clamping mechanism includes two positioning plates 17 symmetrically fixedly connected to the outer wall of the mounting frame 9, the side wall of the positioning plate 17 is symmetrically provided with two insertion holes, and a pushing rod 18 is movably inserted into the corresponding insertion holes, one end of the two pushing rods 18 is fixedly connected to the same L-shaped holding plate 19, the rear ends of the two pushing rods 18 are fixedly connected to the same anti-slip plate 20, and a pushing spring 21 sleeved on the outside of the pushing rod 18 is fixedly connected between the L-shaped holding plate 19 and the positioning plate 17.

[0025] Embedding grooves 22 are formed on the four sides of the installation frame 9 .

[0026] A plurality of reinforcing ribs are symmetrically fixedly connected between the side plates 5 and the support plates 6 .

[0027] The operating principle of the present invention is described as follows: through the provided base 1 and U-shaped vertical plate 2, the flip motor 7 drives the side plate 5 to rotate through the rotating shaft 4, so that one of the mounting frames 9 rotates to the lower side of the measuring instrument body 3, so as to realize the rapid quantitative inspection of the strength of the stress spot of the photovoltaic glass. The rotating motor 10 drives the mounting frame 9 to rotate through the transmission shaft 8. Since the four sides of the mounting frame 9 clamp and fix the glass to be inspected, continuous photovoltaic glass inspection can be achieved, which greatly improves the inspection efficiency. Through the provided height adjustment mechanism, the dual-axis motor 15 is started according to the height to be inspected, and the dual-axis motor 15 drives the two active bevel gears 16 to rotate synchronously. The two adjusting screws 12 are driven to rotate synchronously through the meshing action of the active bevel gear 16 and the driven bevel gear 14. The threaded sleeve connection of the rod 12 and the lifting plate 13 enables the lifting plate 13 to drive the measuring instrument body 3 to quickly adjust the height, and can quickly adjust the detection height according to needs, which is easy to use. Through the clamping mechanism, when installing the glass to be detected, the anti-slip plate 20 is pulled in turn, and the pushing rod 18 is cooperated to drive the L-shaped holding plate 19 to move backward to prevent the L-shaped holding plate 19 from blocking the installation of the photovoltaic glass. The photovoltaic glass to be detected is placed in the embedding groove 22 outside the installation frame 9 to achieve initial stable positioning of the photovoltaic glass, and then the anti-slip plate 20 is released, and the pushing spring 21 cooperates with the pushing rod 18 to push the L-shaped holding plate 19, so that the L-shaped holding plate 19 is pressed against the outside of the glass to be detected, so as to achieve rapid and stable installation of the glass to be detected, and can achieve rapid clamping of the glass to be detected, thereby improving detection efficiency.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for quantitatively testing the intensity of stress spots in photovoltaic glass, characterized in that: The steps include: S1. Prepare the measuring instrument and install it in a fixed manner; S2. The glass to be tested is placed on the testing mechanism for fixing, and the glass to be tested is transported to the testing port of the measuring instrument for testing; S3. Using the light-emitting module of the measuring instrument to illuminate the glass to be tested, and using the acquisition module of the measuring instrument to collect the stress spot image of the glass; S4. Then use the image processing technology of the measuring instrument to analyze the collected stress spot image to obtain the stress spot intensity information of the glass; S5. Determine whether the glass to be tested is qualified according to the stress spot intensity information; The inspection device used in the above-mentioned photovoltaic glass stress spot strength quantitative inspection method comprises a base (1), a U-shaped vertical plate (2) is fixedly installed on the upper end of the base (1), a height adjustment mechanism is installed on the upper end of the U-shaped vertical plate (2), the lower end output end of the height adjustment mechanism is fixedly connected to the measuring instrument body (3), the side walls on the opposite side of the U-shaped vertical plate (2) are rotatably connected to the side plates (5) through the rotating shaft (4), a support plate (6) is fixedly connected between the two side plates (5), a flip motor (7) is fixedly installed on the outer wall of the U-shaped vertical plate (2), the output end of the flip motor (7) is fixedly connected to one end of the rotating shaft (4), the opposite sides of the two ends of the two side plates (5) are fixedly connected to the installation frame (9) through the transmission shaft (8), the outer wall of the side plate (5) is fixedly installed with a rotating motor (10), the output end of the rotating motor (10) is fixedly connected to one end of the transmission shaft (8), and the installation frame (9) is specifically a rectangular structure, and clamping mechanisms are installed on all four sides.

2. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 1, characterized in that: The height adjustment mechanism comprises two horizontal plates (11) symmetrically fixedly connected to the side walls on opposite sides of the upper end of the U-shaped vertical plate (2); the upper end of the horizontal plate (11) and the lower end of the horizontal portion of the U-shaped vertical plate (2) are rotatably connected to an adjusting screw (12) via a bearing; the two adjusting screws (12) are externally threadedly sleeved with a same lifting plate (13); the lifting plate (13) is fixedly connected to the upper end of the measuring instrument body (3); the upper end of the adjusting screw (12) passes through the upper end of the U-shaped vertical plate (2) and is fixedly connected to a driven bevel gear (14); a double-axis motor (15) is fixedly mounted on the upper end of the U-shaped vertical plate (2); both end output ends of the double-axis motor (15) are fixedly connected to a driving bevel gear (16); the driving bevel gear (16) and the driven bevel gear (14) are meshed.

3. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 2, characterized in that: Both ends of the lifting plate (13) are fixedly connected to limit sliding blocks, and the inner side of the vertical portion of the U-shaped vertical plate (2) is provided with a limit sliding groove that matches and slides with the limit sliding block.

4. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 3, characterized in that: The upper end of the U-shaped vertical plate (2) is symmetrically and fixedly connected to two bearing seats, and the inner wall of the bearing seat is rotatably sleeved on the outside of the output shaft of the dual-axis motor (15) through a ball bearing.

5. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 4, characterized in that: The clamping mechanism comprises two positioning plates (17) symmetrically fixedly connected to the outer wall of the mounting frame (9); the side wall of the positioning plate (17) is symmetrically provided with two insertion holes, and a pushing rod (18) is movably inserted into the corresponding insertion holes; one end of the two pushing rods (18) is fixedly connected to the same L-shaped holding plate (19); the rear ends of the two pushing rods (18) are fixedly connected to the same anti-slip plate (20); and a pushing spring (21) sleeved on the outside of the pushing rod (18) is fixedly connected between the L-shaped holding plate (19) and the positioning plate (17).

6. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 5, characterized in that: Embedding grooves (22) are provided on the four sides of the installation frame (9).

7. A photovoltaic glass stress spot intensity quantitative inspection method according to claim 6, characterized in that: A plurality of reinforcing ribs are symmetrically fixedly connected between the side plates (5) and the support plates (6).

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