Apparent defect detection device for photovoltaic module

Abstract

The appearance defect detection device for the photovoltaic module comprises a turnover mechanism, a mechanical arm and a detection mechanism, the turnover mechanism is used for acquiring the to-be-detected product at the first detection position and turning over the to-be-detected product to the second detection position; the mechanical arm comprises a first adjusting assembly, the first adjusting assembly comprises a first support and a first transmission part arranged on the first support, the detection mechanism is arranged on the first transmission part, and the first transmission part is driven to drive the detection mechanism to move to the position opposite to the first detection position or the second detection position. Compared with the prior art, the detection device has the advantages that the detection mechanism is arranged on the first transmission part and can be driven by the first transmission part to move, so that the detection of two surfaces of a product can be realized only through one detection mechanism instead of two detection mechanisms, and the structure is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of appearance defect detection devices, and in particular relates to an appearance defect detection device for a photovoltaic module. Background Art

[0002] Photovoltaic modules are the core components of solar photovoltaic power generation systems. They are also called photovoltaic panels or photovoltaic modules. After production, they need to undergo appearance inspection to screen out photovoltaic modules with appearance defects such as cracks, scratches and dents, so as to avoid affecting the integrity of the photovoltaic panel structure and the stability of its performance after the product is formed.

[0003] When inspecting the appearance of photovoltaic panels, appearance visual inspection equipment is usually used, such as the photovoltaic panel defect appearance inspection structure provided by the authorization announcement number CN220063808U, which obtains the surface image of the photovoltaic panel through the image acquisition module, thereby performing appearance inspection on the photovoltaic panel. The above-mentioned photovoltaic panel defect appearance inspection structure is also provided with a flipping mechanism. After one side of the photovoltaic panel (hereinafter referred to as the front side) is inspected, the flipping mechanism can flip the photovoltaic panel, so that the image acquisition module can detect the other side of the photovoltaic panel (hereinafter referred to as the back side), and finally realize the automatic inspection of the two sides of the photovoltaic panel, which improves the coverage, comprehensiveness and accuracy of the inspection.

[0004] However, the image acquisition module of the above-mentioned detection structure is arranged at a position opposite to the flipping mechanism, and is only used to detect the back side of the photovoltaic panel. The front side of the photovoltaic panel is detected by another image acquisition module. That is, the detection structure needs to be equipped with two image acquisition modules to realize double-sided detection of the photovoltaic panel, which makes the overall structure relatively complicated. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a device for detecting appearance defects of a photovoltaic module.

[0006] To achieve the above objectives, the utility model discloses a photovoltaic module appearance defect detection device, including a flip mechanism, a mechanical arm, and a detection mechanism;

[0007] The flipping mechanism is used to obtain the product to be tested at the first testing position and flip it to the second testing position;

[0008] The robotic arm includes a first adjustment component, which includes a first support and a first transmission member arranged on the first support. The detection mechanism is arranged on the first transmission member, and the first transmission member is driven to move the detection mechanism to a position opposite to the first detection position or the second detection position.

[0009] Preferably, it further comprises a feeding mechanism, which is used to transport the product to be inspected to the first inspection position and is arranged beside the flipping mechanism.

[0010] Further preferably, the flipping mechanism and the robotic arm are located on the same side of the feeding mechanism.

[0011] Preferably, the first transmission member is a screw rod, and the detection mechanism is provided with a first threaded sleeve cooperating with the first transmission member.

[0012] Preferably, the robotic arm also includes a second adjusting component, which includes a second support and a second transmission member arranged on the second support, the first support is connected to the second transmission member, and the second transmission member is driven to move the first support up and down.

[0013] Preferably, the flipping mechanism comprises a third support, a flipping member and a suction cup, wherein the flipping member is rotatably connected to the third support, and the suction cup is arranged on the flipping member for adsorbing the product to be detected on the feeding mechanism.

[0014] Further preferably, the suction cup is located on a side of the flip member away from the third support.

[0015] Further preferably, there are multiple suction cups.

[0016] Further preferably, the suction cup is slidably disposed on the flip member.

[0017] Preferably, the detection mechanism includes a mounting plate and a CCD sensor and an illuminating lamp arranged on the mounting plate, and the mounting plate is connected to the first transmission member.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The product at the first detection position has one side facing outwards and can be detected, and the other side facing inwards and is blocked and cannot be detected. A flipping mechanism is provided to flip the inward side to the second detection position facing outwards so that it can be detected.

[0020] The detection mechanism is arranged on the first transmission member. When the first transmission member is driven, the detection mechanism can be driven to move to a position opposite to the first detection position or the second detection position, so that the two sides of the product can be detected, thereby realizing double-sided detection of the product.

[0021] The above detection mechanism can be moved to two detection positions under the drive of the first transmission member, so that the detection of two sides of the product can be realized by only one detection mechanism, without setting two detection mechanisms, and the structure is simple. In addition, the flipping mechanism is used not only to flip the product so that the other side of the product can be detected, but also serves as a second detection station, which makes the structure of the entire device simpler and more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the appearance defect detection device of the photovoltaic module of the utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional exploded structure of the first adjustment component and the detection mechanism;

[0024] Figure 3 is a schematic diagram of a three-dimensional exploded structure of a second adjustment component;

[0025] Figure 4 It is a schematic diagram of the three-dimensional exploded structure of the flipping mechanism;

[0026] Rack 1;

[0027] Feeding mechanism 2; conveyor belt 21; robot 22;

[0028] Flipping mechanism 3; third support 31; flipping member 32; slide groove 321; suction cup 33; gas suction device 34;

[0029] Mechanical arm 4; first adjustment assembly 41; first support 411; first limiting groove 4111; first transmission member 412; second threaded sleeve 42; second adjustment assembly 43; second support 431; second limiting groove 4311; second transmission member 432; motor 44;

[0030] Detection mechanism 5; first threaded sleeve 51; mounting plate 52; CCD sensor 53; lighting lamp 54; controller 55; display 56. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] A photovoltaic module appearance defect detection device, see Figure 1 , including a frame 1, a feeding mechanism 2, a flipping mechanism 3, a robotic arm 4 and a detection mechanism 5; wherein the feeding mechanism 2, the flipping mechanism 3 and the robotic arm 4 are all installed on the frame 1, and the detection mechanism 5 is connected to the robotic arm 4.

[0033] In this embodiment, the feeding mechanism 2 preferably includes a conveyor belt 21, which can transport the product to be detected (hereinafter referred to as "product"). One side of the product placed on the conveyor belt 21 faces outward, which can be detected, and the other side faces the conveyor belt 21, which is blocked and cannot be detected. The flipping mechanism 3 is located beside the conveyor belt 21, and the position adjacent to the flipping mechanism 3 on the conveyor belt 21 is the first detection position. The flipping mechanism 3 is used to obtain the product on the conveyor belt 21 and flip it to the second detection position, so that the side of the product facing inward on the conveyor belt 21 is flipped outward, so that it can be detected. The mechanical arm 4 includes a first adjustment component 41, which includes a first support 411 and a first transmission member 412 disposed on the first support 411. The detection mechanism 5 is disposed on the first transmission member 412. When detecting a product, the conveyor belt 21 obtains and conveys the product. When the product moves to the first detection position, the first transmission member 412 is driven to drive the detection mechanism 5 to move above the first detection position. The detection mechanism 5 detects the product on the conveyor belt 21, and the detection of the first side of the product is completed at this time. Then, the flip mechanism 3 obtains the product that has been detected on one side and flips it so that the other side of the product faces the detection mechanism 5. In this process, the detection mechanism 5 moves to the upper side of the second detection position. When the flip mechanism 3 and the detection mechanism 5 move to the specified position, the detection mechanism 5 detects the second side of the product. After the detection is completed, the flip mechanism 3 puts the detected product back to the conveyor belt 21 and outputs it to the next process. The above detection mechanism 5 can be moved to the upper side of the first or second detection position under the drive of the first transmission member 412, so that the detection of the two sides of the product can be realized by only one detection mechanism 5, without setting two detection mechanisms 5, and the structure is simple. In addition, the turning mechanism 3 is used not only to turn over the product so that the other side of the product can be inspected, but also serves as a second inspection station, which makes the structure of the entire device simpler and more compact.

[0034] The feeding mechanism 2 is provided to facilitate the delivery of the product to the first detection position. Of course, the product can also be placed at the first detection position manually.

[0035] like Figure 1 As shown in , the first support 411 is a cantilever beam type mechanism. In this embodiment, the flip mechanism 3 is installed on the frame 1, and the detection mechanism 5 is installed on the cantilever beam type first support 411 through the first transmission member 412. Since the detection mechanism 5 is lighter, the bending moment of the first support 411 is smaller and it is not easy to deform, which is conducive to ensuring the relative position relationship between the detection mechanism 5 and the feeding mechanism 2 and the flip mechanism 3, and improving the detection accuracy and detection effect. Since the detection mechanism 5 has the ability to move, when it is not necessary to detect, it can be moved to the end away from the suspended end of the first support 411, which reduces the bending moment of the first support 411, and the first support 411 is less likely to bend and deform, thereby increasing the service life of the first support 411.

[0036] Preferably, in this embodiment, see Figure 2 The first transmission member 412 is a screw rod, and the detection mechanism 5 is provided with a first threaded sleeve 51. The first transmission member 412 and the screw nut of the first threaded sleeve 51 cooperate, so that the detection mechanism 5 is driven by the first transmission member 412 to move horizontally. The screw nut transmission method is adopted, and the movement accuracy of the detection mechanism 5 is high, which is conducive to improving the detection effect. In addition, the movement stability is high and the movement effect is good.

[0037] Correspondingly, a first limiting groove 4111 is provided in the first support 411, and the first threaded sleeve 51 is installed in the first limiting groove 4111. Preferably, the cross-sectional shapes of the first limiting groove 4111 and the first threaded sleeve 51 are adapted, so that, driven by the first transmission member 412, the first threaded sleeve 51 can only translate but not rotate.

[0038] In this embodiment, if Figure 1 As shown, the mechanical arm 4 and the flip mechanism 3 are located on the same side of the conveyor belt 21, so that the mechanical arm 4 will not block the conveyor belt 21, which is convenient for maintaining the conveyor belt 21. In addition, it is also convenient to observe the products on the conveyor belt 21, and it is also convenient to manually place the products when placing the products. There is a flipping avoidance space between the mechanical arm 4 and the flip mechanism 3, so that the flip mechanism 3 will not interfere with the mechanical arm 4 when flipping.

[0039] In this embodiment, the first transmission member 412 is arranged along a direction perpendicular to the conveying direction of the feeding mechanism 2, and the moving direction of the detection mechanism 5 is perpendicular to the conveying direction of the feeding mechanism 2, and is located above the flipping mechanism 3. With this arrangement, the moving stroke of the detection mechanism 5 is shorter, which is beneficial to shortening its moving time and improving the detection efficiency. In addition, the detection mechanism 5 is above the flipping mechanism 3, preferably in a directly above position, which enables it to uniformly identify and detect every position of the product to ensure the detection effect.

[0040] See also Figure 1 , Figure 3 The robot arm 4 also includes a second adjustment component 43, which includes a second support 431 arranged on the frame 1, and a second transmission member 432 arranged on the second support 431. The first support 411 is connected to the second transmission member 432, and the second transmission member 432 is driven to drive the first support 411 to move up and down. Therefore, when detecting products, the detection mechanism 5 can be closer to the product, which is beneficial to improving the product detection effect.

[0041] Preferably, in this embodiment, the second transmission member 432 is also a screw rod, a second limiting groove 4311 is provided in the second support 431, a second threaded sleeve 42 is fixed on the first support 411, and the second threaded sleeve 42 can be installed in the second limiting groove 4311 and move up and down driven by the second transmission member 432, thereby driving the first support 411 to move up and down.

[0042] See also Figure 1 , Figure 4 The flip mechanism 3 includes a third support 31, a flip member 32 and a suction cup 33. The third support 31 is mounted on the frame 1. The flip member 32 is rotatably connected to the third support 31. The suction cup 33 is arranged on the flip member 32 for adsorbing the product on the feeding mechanism 2. The flip mechanism 3 uses the suction cup 33 to fix the product by adsorption. Compared with the clamp method in the prior art CN220063808U, this can prevent the product from being crushed and reduce the defective rate. In addition, the product is fixed by vacuum adsorption, which will not cause obstruction and ensure the detection effect.

[0043] The suction cup 33 can be connected to a gas suction device 34 such as a vacuum pump to provide a greater suction force and improve the product adsorption effect. The gas suction device 34 can be directly or indirectly connected to the suction cup 33 through a hose.

[0044] In this embodiment, see Figure 1 , Figure 4 The suction cup 33 is located on the side of the flip member 32 away from the third support 31, so that the size of the suction cup 33 along the direction perpendicular to its rotation axis can be set to a smaller size to ensure the compactness of the overall mechanism. There are multiple suction cups 33, preferably four, and the four suction cups 33 are evenly arranged, which can improve the product adsorption effect and avoid the problem of product falling.

[0045] like Figure 4 In the embodiment, a slide groove 321 is provided on the flip member 32, and the suction cup 33 is slidably arranged in the slide groove 321. In this way, the suction cup 33 can adjust its position according to the actual product size, so that it can absorb and fix products of various sizes, thereby improving its applicability.

[0046] It should be noted that the above-mentioned two groups of adjustment components and the flipping mechanism 3, the transmission member or flipping member 32 is said to be driven, which can be directly driven by the motor 44 (this embodiment adopts this method), or driven by the motor 44, the transmission structure, etc.

[0047] See also Figure 2 The detection mechanism 5 includes a mounting plate 52, a CCD sensor 53 and a lighting lamp 54. The top surface of the mounting plate 52 is connected to the first transmission member 412 through a first threaded sleeve 51. The CCD sensor 53 and the lighting lamp 54 are installed on the bottom surface of the mounting plate 52. During detection, the CCD sensor 53 detects the product, and the lighting lamp 54 provides auxiliary lighting for detection.

[0048] In this embodiment, the detection mechanism 5 also includes a controller 55 and a display 56. The output end of the CCD sensor 53 is connected to the input end of the controller 55. The output end of the controller 55 is respectively connected to the lighting lamp 54, the display 56, the gas suction device 34, the motor 44 of the first transmission member 412 and the second transmission member 432, the input end of the motor 44 of the flip member 32, and the feeding mechanism 2.

[0049] In this embodiment, the feeding mechanism 2 also includes a manipulator 22, which can grab the inspected products, thereby reducing the manual workload. In order to improve the grabbing effect, the claws of the manipulator 22 adopt vacuum grippers, and accordingly, the vacuum grippers are connected to a gas suction device 34 such as a vacuum pump.

[0050] In this embodiment, for the power device of each mechanism, preferably, the motor driving the first transmission member 412, the second transmission member 432 and the flip member 32 to rotate is a servo motor, and the model can be MR-J4; the conveyor belt 21 rotates under the action of the transmission roller and the drive motor, so as to convey the product, wherein the drive motor can be selected from the W22 series; the controller selected by the detection mechanism can be CP1L-M60DT-D; the gas suction device 34 is a vacuum pump 301, and the specific model is selected as ZL-1-WS.

[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A photovoltaic module appearance defect detection device, characterized in that: Including flipping mechanism, robotic arm and detection mechanism; The flipping mechanism is used to obtain the product to be tested at the first testing position and flip it to the second testing position; The robotic arm includes a first adjustment component, which includes a first support and a first transmission member arranged on the first support. The detection mechanism is arranged on the first transmission member, and the first transmission member is driven to move the detection mechanism to a position opposite to the first detection position or the second detection position.

2. The photovoltaic module appearance defect detection device according to claim 1, characterized in that: It also includes a feeding mechanism, which is used to transport the product to be tested to the first testing position and is arranged beside the flipping mechanism.

3. The photovoltaic module appearance defect detection device according to claim 2, characterized in that: The turning mechanism and the mechanical arm are located on the same side of the feeding mechanism.

4. The photovoltaic module appearance defect detection device according to claim 1, characterized in that: The first transmission member is a screw rod, and the detection mechanism is provided with a first threaded sleeve matched with the first transmission member.

5. The photovoltaic module appearance defect detection device according to claim 1, characterized in that: The robotic arm also includes a second adjusting component, which includes a second support and a second transmission member arranged on the second support. The first support is connected to the second transmission member, and the second transmission member is driven to drive the first support to move up and down.

6. The photovoltaic module appearance defect detection device according to claim 1, characterized in that: The flipping mechanism comprises a third support, a flipping member and a suction cup. The flipping member is rotatably connected to the third support. The suction cup is arranged on the flipping member and is used for adsorbing the product to be detected on the feeding mechanism.

7. The photovoltaic module appearance defect detection device according to claim 6, characterized in that: The suction cup is located on a side of the flip member away from the third support.

8. The photovoltaic module appearance defect detection device according to claim 6, characterized in that: There are multiple suction cups.

9. The photovoltaic module appearance defect detection device according to claim 6, characterized in that: The suction cup is slidably arranged on the flipping member.

10. The photovoltaic module appearance defect detection device according to claim 1, characterized in that: The detection mechanism comprises a mounting plate and a CCD sensor and an illuminating lamp arranged on the mounting plate, and the mounting plate is connected to the first transmission member.

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