Photovoltaic glass bending laser measurement jig

Abstract

The utility model provides a kind of photovoltaic glass bending degree laser measurement jig, comprising: rack, detection unit, placing table, clamping mechanism and cleaning mechanism, wherein, detection unit is set on rack;Placing table is movably connected on rack;Clamping mechanism is set on rack by placing table;Cleaning mechanism includes drive assembly and wiping assembly.The photovoltaic glass bending degree laser measurement jig of the utility model embodiment, the photovoltaic glass bending degree laser measurement jig of the utility model, utilize air blowing assembly to blow away surface dust and loose impurities, reduce subsequent cleaning block's wiping burden, avoid hard particle to cause scratch to glass surface in wiping process, while, cooperate cleaning block, wipe the glass surface to be detected, remove dust, stain and other impurities attached on glass surface, further improve the cleanliness of glass surface, avoid the interference of impurities to the reflection or transmission path of laser, ensure the accuracy and reliability of bending degree measurement result.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic glass technology, and in particular to a laser measuring fixture for the curvature of photovoltaic glass. Background Technology

[0002] In the manufacturing process of photovoltaic modules, photovoltaic glass, as a key encapsulation material, has a curvature that significantly affects the module's assembly accuracy, structural stability, and long-term power generation performance. Excessive curvature of the photovoltaic glass can lead to problems such as microcracks and delamination during module encapsulation, and may also accelerate aging due to uneven stress during subsequent use, thus reducing the lifespan of the photovoltaic system.

[0003] Currently, the industry faces the following main problems when measuring the curvature of photovoltaic glass: 1. When testing the curvature of photovoltaic glass, the photovoltaic glass to be tested is placed on the feeding table of the fixture, and the vacuum adsorption component under the table is activated. The negative pressure is generated through the evenly distributed adsorption holes to fix the photovoltaic glass on the feeding table, ensuring that the glass does not shift during the fixing process. However, suspended dust and other impurities in the production workshop environment can easily adhere to the surface of the glass. In the laser detection process, impurities can interfere with the reflection path of the laser beam, causing deviations in the height data obtained by the laser receiver, resulting in inaccurate curvature measurement results.

[0004] 2. When adsorbing glass, dust adhering to the glass surface may reduce the negative pressure adsorption force, causing the glass to shift during transportation, which will affect subsequent testing. At the same time, the glass itself is curved and it is difficult to make full contact with the adsorption platform, which further aggravates the problem of unstable adsorption. This may cause the glass to shake or shift during transportation or testing, interfering with the normal testing process. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0006] Therefore, one objective of this utility model is to provide a laser measurement fixture for the curvature of photovoltaic glass, which can blow away surface dust and loose impurities, avoiding scratches on the glass surface caused by hard particles during wiping. At the same time, in conjunction with a cleaning block, the surface of the glass to be tested is wiped to further improve the cleanliness of the glass surface, avoid impurities from interfering with the reflection or transmission path of the laser, and ensure the accuracy and reliability of the curvature measurement results.

[0007] To achieve the above objectives, the first aspect of this utility model provides a laser measuring fixture for the curvature of photovoltaic glass, comprising: a frame, a detection unit, a placement stage, a clamping mechanism, and a cleaning mechanism, wherein the detection unit is disposed on the frame; the placement stage is movably connected to the frame; the clamping mechanism is disposed on the frame via the placement stage; the cleaning mechanism includes a driving component and a wiping component, wherein the driving component is disposed at the bottom end of the frame; and the wiping component is disposed on the frame.

[0008] In addition, the photovoltaic glass curvature laser measuring fixture proposed above according to this utility model may also have the following additional technical features: Specifically, the clamping mechanism includes a first threaded rod and two support plates, wherein the first threaded rod is movably connected to the placement platform; and the two support plates are symmetrically arranged on the placement platform via the first threaded rod.

[0009] Specifically, the drive assembly includes a drive motor, a connecting shaft, a first pulley, a second threaded rod, a second pulley, and a cam. The drive motor is located at the bottom of the frame; the connecting shaft is mounted on the frame via the drive motor; the first pulley is nested on the connecting shaft; the second threaded rod is located within the placement platform, with both ends of the second threaded rod extending through the placement platform and connected to the frame; the second pulley is nested at the extended end of the second threaded rod; and the cam is nested on the connecting shaft.

[0010] Specifically, the wiping assembly includes a bracket, two air blowing assemblies, an elastic telescopic rod, and a cleaning block. The bracket is mounted on the frame; the two air blowing assemblies are symmetrically arranged on the bracket; the elastic telescopic rod is located at the bottom of the bracket; and the cleaning block is mounted on the bracket via the elastic telescopic rod.

[0011] Specifically, the air blowing assembly includes a fixed rod, an abutment rod, a connecting rod, a movable rod, and an airbag. The fixed rod is mounted on the bracket; the abutment rod is movably connected to the bracket via the fixed rod; the connecting rod is movably connected to the abutment rod; the movable rod is movably connected to the end of the connecting rod away from the abutment rod; and the airbag is sleeved on the outside of the fixed rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The photovoltaic glass curvature laser measurement fixture of the present invention uses an air blowing component to blow away the floating dust and loose impurities on the surface, reducing the wiping burden of the subsequent cleaning block, and avoiding scratches on the glass surface by hard particles during the wiping process. At the same time, in conjunction with the cleaning block, the surface of the glass to be tested is wiped to remove dust, stains and other impurities attached to the glass surface, further improving the cleanliness of the glass surface, avoiding interference from impurities on the reflection or transmission path of the laser, and ensuring the accuracy and reliability of the curvature measurement results.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of a photovoltaic glass curvature laser measuring fixture according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the photovoltaic glass curvature laser measuring fixture clamping mechanism according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the axial structure of a photovoltaic glass curvature laser measuring fixture according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the air blowing assembly of the photovoltaic glass curvature laser measuring fixture according to an embodiment of the present invention.

[0015] Reference numerals: 1. Frame; 2. Detection unit; 3. Placement platform; 4. Clamping mechanism; 41. First threaded rod; 42. Support plate; 5. Cleaning mechanism; 51. Drive assembly; 511. Drive motor; 512. Connecting shaft; 513. First pulley; 514. Second threaded rod; 515. Second pulley; 516. Cam; 52. Wiping assembly; 521. Bracket; 522. Air blowing assembly; 5221. Fixed rod; 5222. Abutment rod; 5223. Connecting rod; 5224. Movable rod; 5225. Airbag; 523. Elastic telescopic rod; 524. Cleaning block. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] The following describes an embodiment of the photovoltaic glass curvature laser measuring fixture with reference to the accompanying drawings.

[0018] like Figures 1-4 As shown, a photovoltaic glass curvature laser measuring fixture according to an embodiment of the present invention may include: a frame 1, a detection unit 2, a placement platform 3, a clamping mechanism 4, and a cleaning mechanism 5, wherein the detection unit 2 is disposed on the frame 1.

[0019] It should be noted that the detection unit 2 described in this embodiment is mainly used for laser detection of the curvature of photovoltaic glass. It may include a laser emitter, a laser receiver, and a processing module. The laser emitter emits a parallel laser beam onto the surface of the photovoltaic glass to be tested, placed on the platform 3. The laser receiver is correspondingly located at the receiving end of the laser optical path to capture the laser signal reflected or transmitted through the glass surface. Simultaneously, the processing module converts the optical signal collected by the laser receiver into an electrical signal and calculates the curvature data of the glass using an algorithm, ultimately obtaining the detection result. The above-described device and connection method are readily conceived and implemented by those skilled in the art, and therefore will not be elaborated upon.

[0020] The placement platform 3 is movably connected to the frame 1, the clamping mechanism 4 is set on the frame 1 via the placement platform 3, and the cleaning mechanism 5 includes a drive assembly 51 and a wiping assembly 52, wherein the drive assembly 51 is set at the bottom of the frame 1, and the wiping assembly 52 is set on the frame 1.

[0021] It should be noted that the placement stage 3 described in this embodiment is moved horizontally along the frame 1 via a guide rail structure, so as to move the glass to the measurement area of ​​the detection unit 2 and ensure that the laser detection covers the key detection points of the glass.

[0022] Specifically, when testing photovoltaic glass, the operator needs to place the photovoltaic glass to be tested on the placement platform 3, and then use the clamping mechanism 4 to clamp the glass to prevent it from shifting in subsequent actions.

[0023] Furthermore, during testing, the drive assembly 51 at the bottom of the frame 1 can move the placement stage 3, allowing the photovoltaic glass on the placement stage 3 to pass under the wiping assembly 52. ​​At the same time, the wiping assembly 52 blows air onto the glass surface to remove floating dust and loose impurities attached to the glass surface, and then wipes the glass surface to remove impurities, thus avoiding interference from impurities when the subsequent laser measurement is performed by the testing unit 2.

[0024] In one embodiment of this utility model, such as Figure 2 As shown, the clamping mechanism 4 includes a first threaded rod 41 and two support plates 42. The first threaded rod 41 is movably connected to the placement platform 3, and the two support plates 42 are symmetrically arranged on the placement platform 3 through the first threaded rod 41.

[0025] It should be noted that the first threaded rod 41 described in this embodiment is a double-threaded rod, and the two support plates 42 are threadedly connected to the first threaded rod 41, and the threads of the two support plates 42 are opposite, so as to ensure that the two support plates 42 move in opposite directions synchronously.

[0026] Additionally, it should be noted that the support plate 42 described in this embodiment has a groove that is adapted to the edge thickness of the photovoltaic glass to be tested, forming an embedded support for the glass edge. At the same time, a flexible buffer pad can be attached to the inner wall of the groove to prevent scratches or damage to the glass edge.

[0027] Specifically, when clamping the photovoltaic glass, the operator can rotate the first threaded rod 41, so that the first threaded rod 41 drives the two support plates 42 to move synchronously along the slide rail on the placement table 3 through thread engagement, thereby aligning the two sides of the glass with the grooves of the two support plates 42, ensuring that the two sides of the glass can be embedded in the grooves, and the flexible buffer pad on the inner wall of the groove can avoid edge damage caused by hard friction, ensuring that the glass remains stable during testing.

[0028] In one embodiment of this utility model, such as Figure 3 As shown, the drive assembly 51 includes a drive motor 511, a connecting shaft 512, a first pulley 513, a second threaded rod 514, a second pulley 515, and a cam 516. The drive motor 511 is located at the bottom of the frame 1, the connecting shaft 512 is mounted on the frame 1 via the drive motor 511, the first pulley 513 is nested on the connecting shaft 512, the second threaded rod 514 is located inside the placement platform 3, with both ends of the second threaded rod 514 extending through the placement platform 3 and connecting to the frame 1, the second pulley 515 is nested at the extended end of the second threaded rod 514, and the cam 516 is nested on the connecting shaft 512.

[0029] It should be noted that the first pulley 513 and the second pulley 515 described in this embodiment are connected by a belt for transmission. The groove size of the first pulley 513 and the second pulley 515 matches the cross-section of the belt to ensure that the belt does not slip or fall off during transmission.

[0030] Additionally, it should be noted that the second threaded rod 514 described in this embodiment is threadedly connected to the placement platform 3. Therefore, when the second threaded rod 514 rotates under the drive of the second pulley 515, the second threaded rod 514 will drive the placement platform 3 to move along the frame 1 through thread engagement.

[0031] Specifically, when the drive motor 511 starts, it drives the connecting shaft 512 to rotate. The connecting shaft 512 can drive the first pulley 513 and the cam 516 to rotate synchronously, which in turn causes the first pulley 513 to drive the second pulley 515 to rotate via the belt. The second pulley 515 then drives the second threaded rod 514 to rotate. Under the engagement of the threads, the second threaded rod 514 will drive the placement stage 3 to move, which in turn drives the photovoltaic glass clamped and fixed on the placement stage 3 to move towards the detection area.

[0032] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the wiping assembly 52 includes a bracket 521, two air blowing assemblies 522, an elastic telescopic rod 523, and a cleaning block 524. The bracket 521 is mounted on the frame 1, the two air blowing assemblies 522 are symmetrically arranged on the bracket 521, the elastic telescopic rod 523 is located at the bottom of the bracket 521, and the cleaning block 524 is mounted on the bracket 521 via the elastic telescopic rod 523.

[0033] It should be noted that the elastic telescopic rods 523 described in this embodiment are distributed at equal intervals along the bottom end of the bracket 521. They are equipped with a return spring inside, which can provide elastic pressure so that the cleaning block 524 adheres to the glass surface with appropriate pressure.

[0034] Specifically, when the drive component 51 moves the placement stage 3 and the fixed photovoltaic glass to the detection area, the air blowing component 522 can blow airflow obliquely towards the glass surface to remove floating dust, loose debris and other impurities attached to the glass surface, preventing impurities from being pressed into the glass surface or causing scratches during subsequent wiping. At the same time, as the placement stage 3 continues to move, the glass surface treated by the air blowing comes into contact with the cleaning block 524, so that the cleaning block 524 adheres to the glass surface with a certain pressure to wipe the glass surface, providing a clean glass surface for the subsequent laser measurement of the detection unit 2, and ensuring the accuracy of the curvature detection data.

[0035] In one embodiment of this utility model, such as Figure 4As shown, the air blowing assembly 522 includes a fixed rod 5221, an abutment rod 5222, a connecting rod 5223, a movable rod 5224, and an airbag 5225. The fixed rod 5221 is mounted on the bracket 521. The abutment rod 5222 is movably connected to the bracket 521 via the fixed rod 5221. The connecting rod 5223 is movably connected to the abutment rod 5222. The movable rod 5224 is movably connected to the end of the connecting rod 5223 away from the abutment rod 5222. The airbag 5225 is sleeved on the outside of the fixed rod 5221.

[0036] It should be noted that the support 521 described in this embodiment is provided with an airway. The airway inlet is connected to the air outlet of the airbag 5225 through a one-way flow pipe, and the airbag 5225 inlet is connected to the outside through a one-way flow pipe. Specifically, the one-way pipe at the airbag 5225 inlet only allows outside air to flow into the airbag 5225 in one direction, and the one-way pipe at the airway inlet only allows gas from inside the airbag 5225 to flow into the airway of the support 521 in one direction.

[0037] Additionally, it should be noted that the movable rod 5224 described in this embodiment corresponds to the cam 516. The end of the movable rod 5224 away from the connecting rod 5223 extends into the movement trajectory range of the cam 516 and cooperates with the cam 516. At the same time, the connecting rod 5223 is rotatably connected to the bracket 521, and a torsion spring is provided at the shaft end of the connecting rod 5223. One end of the torsion spring is fixed to the rod body of the connecting rod 5223, and the other end is connected to the side wall of the bracket 521. Under normal conditions, the torsion spring is in a naturally relaxed state, so that the connecting rod 5223 maintains its initial angle position.

[0038] Specifically, when the cam 516 of the drive assembly 51 rotates, the protruding part of the cam 516 periodically abuts against the extended end of the movable rod 5224. When the protruding part of the cam 516 rotates to contact the movable rod 5224, the movable rod 5224 pushes the connecting rod 5223 to rotate, causing the connecting rod 5223 to drive the abutting rod 5222 to move closer to the end of the airbag 5225, thereby squeezing the airbag 5225 and delivering the gas stored in the airbag 5225 through a one-way flow pipe into the air passage, and then from the end of the air passage towards the glass to be cleaned. The nozzle on the glass surface sprays out to blow away the floating dust. After the cam 516 protrusion continues to rotate and disengages from the movable rod 5224, the connecting rod 5223 is reset and rotated under the elastic action of the reset torsion spring. This pulls the abutment rod 5222 to move in the opposite direction away from the airbag 5225, causing the airbag 5225 to gradually expand in volume under its own elastic reset force. Then, outside air is drawn into the airbag 5225 through the one-way fluid pipe and stored therein, preparing for the next air blowing action when the cam 516 protrusion abuts the movable rod 5224.

[0039] In summary, the photovoltaic glass curvature laser measurement fixture of this invention utilizes an air blowing component to remove surface dust and loose impurities, reducing the wiping burden of subsequent cleaning blocks and preventing hard particles from scratching the glass surface during wiping. Simultaneously, in conjunction with the cleaning block, the surface of the glass to be tested is wiped to remove dust, stains, and other impurities adhering to the glass surface, further improving the cleanliness of the glass surface and preventing impurities from interfering with the reflection or transmission path of the laser, thus ensuring the accuracy and reliability of the curvature measurement results.

[0040] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A laser measuring fixture for the curvature of photovoltaic glass, characterized in that, include: The components include a frame, a testing unit, a placement platform, a clamping mechanism, and a cleaning mechanism. The detection unit is mounted on the frame; The placement platform is movably connected to the frame; The clamping mechanism is mounted on the frame via the placement platform; The cleaning mechanism includes a drive component and a wiping component, wherein... The drive assembly is located at the bottom of the frame; The wiping assembly is mounted on the frame.

2. The photovoltaic glass curvature laser measuring fixture according to claim 1, characterized in that, The clamping mechanism includes a first threaded rod and two support plates, wherein... The first threaded rod is movably connected to the placement platform; The two support plates are symmetrically arranged on the placement platform via the first threaded rod.

3. The photovoltaic glass curvature laser measuring fixture according to claim 1, characterized in that, The drive assembly includes a drive motor, a connecting shaft, a first pulley, a second threaded rod, a second pulley, and a cam, wherein... The drive motor is located at the bottom end of the frame; The connecting shaft is mounted on the frame via the drive motor; The first pulley is nested on the connecting shaft; The second threaded rod is disposed inside the placement platform, and both ends of the second threaded rod extend through the placement platform and are connected to the frame; The second pulley is nested at the protruding end of the second threaded rod; The cam is nested on the connecting shaft.

4. The photovoltaic glass curvature laser measuring fixture according to claim 1, characterized in that, The wiping assembly includes a bracket, two air blowing components, a flexible telescopic rod, and a cleaning block. The bracket is mounted on the frame; The two air-blowing components are symmetrically arranged on the bracket; The elastic telescopic rod is installed at the bottom end of the bracket; The cleaning block is mounted on the bracket via the elastic telescopic rod.

5. The photovoltaic glass curvature laser measuring fixture according to claim 4, characterized in that, The air-blowing assembly includes a fixed rod, an abutment rod, a connecting rod, a movable rod, and an airbag, wherein... The fixing rod is mounted on the bracket; The abutment rod is movably connected to the bracket via the fixing rod; The connecting rod is movably connected to the abutting rod; The movable rod is movably connected to the end of the connecting rod away from the abutting rod; The airbag is fitted onto the outside of the fixing rod.

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