Photovoltaic module layout and busbar welding machine

Abstract

The present invention discloses a photovoltaic module layout busbar welding integrated machine, comprising a frame (11) and a flip platform (12) with a vacuum adsorption function arranged on the frame (11), and a cell conveying and positioning system (20) and a busbar welding system (30) respectively arranged next to the flip platform (12) and cooperating with the flip platform (12), the cell conveying and positioning system (20) comprising a cell string layout mechanical arm (21) and a cell string conveying unit for feeding the cell string layout mechanical arm (21), and the busbar welding system (30) comprising a lifting welding machine (31) and a busbar grabbing mechanical arm (32) for feeding the lifting welding machine (31). The present invention completes layout and busbar welding together, and there is no need to worry about the problem of EVA being melted by welding high temperature during the welding process, thereby greatly improving the output and yield of the product.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaics, and in particular relates to a photovoltaic component typesetting and confluence welding integrated machine. Background Art

[0002] The basic production process of existing photovoltaic industry components is: string welding, layout, busbar welding, lamination, appearance inspection, framing, and testing. After completing the above steps, a usable solar panel (also called a component) is produced. The layout and busbar welding work were originally done manually, specifically: on the glass plate with EVA layer, after the battery string is neatly arranged according to the design plan, the busbar is placed under the welding strip extending from the battery string, and an insulating glass fiber board is placed under the busbar, and then the battery string and the busbar are welded together with an electric soldering iron. The disadvantages of this method are that there are many welding points, the operation is difficult, and the working time is long, especially the middle part of the component is far away from the edge, which is not easy to operate, and the EVA under the welding strip is easy to melt during welding, which increases the secondary maintenance work. For this reason, people need a more efficient and safe method to produce photovoltaic components. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a photovoltaic module layout and busbar welding integrated machine.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0005] The photovoltaic module layout busbar welding integrated machine includes a frame 11 and a flipping platform 12 with a vacuum adsorption function arranged on the frame 11. The flipping platform 12 is driven to flip by a rotating motor 13 fixed to the frame. Next to the flipping platform 12, there are also provided a cell conveying and positioning system 20 and a busbar welding system 30 that cooperate with the flipping platform 12. The cell conveying and positioning system 20 includes a cell string layout robot arm 21 and a cell string conveying unit that feeds the cell string layout robot arm 21. The busbar welding system 30 includes a lifting welding machine 31 that can move along the bottom of the flipping platform 12 and a busbar grabbing robot arm 32 that feeds the lifting welding machine 31.

[0006] Preferably, a glass panel conveyor belt 40 is further provided below the flip platform 12. More preferably, the glass panel conveyor belt 40 is a liftable glass panel conveyor belt.

[0007] Preferably, the cell conveying and positioning system 20 and the busbar welding system 30 are arranged on two adjacent side positions of the flipping platform 12 .

[0008] Preferably, two support frames are provided on the frame 11 and above the two sides of the flip platform 12, and two first linear guide rails 14 are provided in parallel on the two support frames. A first slider is provided on the first linear guide rail 14, and the battery string typesetting robot arm 21 is mounted above the flip platform 12 by being fixed on the first slider. A first gear rack drive mechanism 15 is provided between the first slider on one side and the support frame, which is used to push the first slider to move along the first linear guide rail 14 with the battery string typesetting robot arm 21.

[0009] Preferably, the battery string conveying unit comprises a second frame and a battery string conveyor belt 22 and a battery string centering correction platform 23 for pre-positioning of the battery strings, which are sequentially mounted on the second frame; the second frame is also provided with a battery string centering transfer robot arm 24 located above the battery string centering correction platform 23 and the battery string conveyor belt 22; the battery string centering transfer robot arm 24 is used to grab the battery string 100 from the battery string conveyor belt 22 and then place it on the battery string centering correction platform 23; the battery string typesetting transfer robot arm 21 is used to grab the battery string 100 from the battery string centering correction platform 23 and then place it on the flipping platform 12.

[0010] More preferably, two support frames are provided on both sides of the second frame, two second linear guide rails are arranged in parallel on the support frames, and a second slider is provided on the second linear guide rail. The battery string centering transmission robot arm 24 is fixedly set on the second slider and erected above the battery string conveyor belt 22 and the battery string centering correction platform 23. A second gear rack drive mechanism is provided between the second slider on one side and the support seat, which is used to push the slider to move the battery string centering transmission robot arm 24 along the second linear guide rail.

[0011] Furthermore, the battery string conveyor belt 22 includes two parallel conveyor belts, and a rotating mechanism is provided at the bottom of the two conveyor belts to facilitate the conveyor belts to turn and adapt to the battery string centering transmission robot arm 24 to grab.

[0012] Preferably, the battery string centering correction platform 23 includes two symmetrical sub-platforms 231, the distance between the two sub-platforms 231 is adjustable, and both sub-platforms 231 are provided with a cylinder pushing device 232 for adjusting the battery string 100 to the side. The battery string centering correction platform 23 is also provided with an optical camera for determining the position of the battery string and then making adjustments.

[0013] More preferably, the battery string centering transmission robot arm 24 , the battery string layout transmission robot arm 21 and the bus bar grasping robot arm 32 are all provided with grasping suction cups.

[0014] Preferably, a rotating structure is provided at the bottom of the battery string conveyor belt 22 to facilitate rotating the direction of the battery string conveyor belt 22 so that the battery string can be grasped by the centering transmission robot arm 24.

[0015] Preferably, the busbar welding system 30 further comprises a busbar feeding and cutting device for feeding the busbar grabbing robot arm 32 .

[0016] More preferably, the busbar feeding and cutting device comprises a busbar coil 33 , a conveying wheel 34 and a clamping mechanism 36 which are arranged in sequence, and a cutting mechanism 35 is further provided between the conveying wheel 34 and the clamping mechanism 36 .

[0017] Furthermore, the clamping mechanism 36 includes a bottom plate, a fourth linear guide is provided on the side of the bottom plate, and above the bottom plate, a plurality of parallel cylinder clamping heads are provided through a slider that can move along the fourth linear guide provided on both sides of the bottom plate, and the slider is provided on a lead screw driven by a motor so as to be able to move along the fourth linear guide. The cylinder clamping head cooperates with the cutting mechanism, the cylinder clamping head first clamps the end of the bus bar, and then the slider pulls the cylinder clamping head backward until the bus bar of the required length is obtained, the slider stops moving, the cutting mechanism 35 cuts the bus bar, and then the slider continues to pull the cylinder clamping head backward until it reaches the predetermined position, the cylinder clamping head releases the bus bar and allows the bus bar to fall onto the bottom plate, at which point the bus bar is ready, which is convenient for the bus bar grabbing mechanical arm 32 to grab.

[0018] Furthermore, a busbar preparation placement groove is provided on the bottom plate 361 and at the rear end of at least one cylinder clamping head.

[0019] Furthermore, a busbar bending unit is provided on the bottom plate and at the rear end of at least one cylinder clamping head.

[0020] Preferably, the lifting welding machine 31 includes a base 314 and a lifting drive mechanism 312 fixedly arranged on the base 314. The lifting movable end of the lifting drive mechanism 312 is set upward, and a bus bar placement heating table 311 is provided on the lifting movable end. Both sides of the base 314 are also set to a third linear guide rail 313 extending under the flip platform 12 through sliders. The two ends of the base 314 can move along the third linear guide rail 313 to achieve movement under the flip platform 12.

[0021] Due to the adoption of the above technical solution, the present invention has the following technical effects:

[0022] The photovoltaic component layout and convergence welding integrated machine of the present invention has an ingenious structure. By introducing a flip platform and then using automated equipment to replace manual component layout and convergence welding work, the output and yield of the product are greatly improved, secondary damage is avoided, and labor costs are reduced at the same time. It is highly practical and worthy of promotion, especially changing the original method that both manual welding and automatic convergence welding machines on the market are completed on glass and EVA, so that the battery string convergence welding is completed as a whole on other platforms and then transferred to the glass and EVA. In this way, there is no need to worry about the problem of EVA being melted by high temperature during welding during the welding process, and the layout and convergence welding are completed together, whether it is transferred by a flip platform or by horizontal transfer of the platform, it is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 for Figure 1 The main view;

[0026] Figure 3 It is a schematic diagram of the connection structure between the flip platform and the battery cell conveying and positioning system;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 It is a schematic diagram of the connection structure between the flip platform and the busbar welding system;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of a busbar welding system;

[0030] Figure 7 for Figure 6 A top view of

[0031] Figure 8 It is a partial structural schematic diagram of the lifting welding machine. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0034] like Figure 1-8 A photovoltaic module layout busbar welding integrated machine shown in the figure includes a frame 11 and a flipping platform 12 with a vacuum adsorption function arranged on the frame 11. The flipping platform 12 is driven to flip by a rotating motor 13 fixed to the frame. Next to the flipping platform 12, there are also provided a cell conveying and positioning system 20 and a busbar welding system 30 that cooperate with the flipping platform 12. The cell conveying and positioning system 20 includes a cell string layout robot arm 21 and a cell string conveying unit that feeds the cell string layout robot arm 21. The busbar welding system 30 includes a lifting welding machine 31 that can move along the bottom of the flipping platform 12 and a busbar grabbing robot arm 32 that feeds the lifting welding machine 31.

[0035] The glass panel conveyor belt 40 is a liftable glass panel conveyor belt.

[0036] The cell conveying and positioning system 20 and the busbar welding system 30 are arranged on two adjacent side positions of the flipping platform 12 .

[0037] The vacuum adsorption function of the flip platform 12 is a function of the prior art, which can be achieved by providing a hole on the surface of the platform with an internal cavity and then connecting the cavity to a vacuum pump.

[0038] Two support frames are arranged on the frame 11 and above the two sides of the flip platform 12, and two first linear guide rails 14 are arranged in parallel on the two support frames. A first slider is provided on the first linear guide rail 14, and the battery string typesetting robot arm 21 is erected above the flip platform 12 by being fixed on the first slider. A first gear rack driving mechanism 15 is provided between the first slider on one side and the support frame, which is used to push the first slider to move along the first linear guide rail 14 with the battery string typesetting robot arm 21.

[0039] The battery string conveying unit includes a second frame and a battery string conveyor belt 22 and a battery string centering correction platform 23 for pre-positioning the battery strings, which are sequentially mounted on the second frame. The second frame is also provided with a battery string centering transfer robot 24 located above the battery string centering correction platform 23 and the battery string conveyor belt 22. The battery string centering transfer robot 24 is used to grab the battery string 100 from the battery string conveyor belt 22 and then place it on the battery string centering correction platform 23. The battery string typesetting transfer robot 21 is used to grab the battery string 100 from the battery string centering correction platform 23 and then place it on the flip platform 12.

[0040] The battery string conveyor belt 22 includes two parallel conveyor belts, and a rotating mechanism is provided at the bottom of the two conveyor belts to facilitate the conveyor belts to turn and adapt to the battery string centering transmission robot arm 24 to grab.

[0041] Two support frames are provided on both sides of the second frame, two second linear guide rails are arranged in parallel on the support frames, and a second slider is provided on the second linear guide rail. The battery string centering transmission robot arm 24 is fixedly set on the second slider and erected above the battery string conveyor belt 22 and the battery string centering correction platform 23. A second gear rack drive mechanism is provided between the second slider on one side and the support seat, which is used to push the slider to move the battery string centering transmission robot arm 24 along the second linear guide rail.

[0042] The battery string centering correction platform 23 includes two symmetrical sub-platforms 231, the distance between the two sub-platforms 231 is adjustable, and both sub-platforms 231 are provided with a cylinder pushing device 232 for adjusting the battery string 100 to the side. The battery string centering correction platform 23 is also provided with an optical camera for determining the position of the battery string and then adjusting it.

[0043] The battery string centering transmission robot arm 24 , the battery string layout transmission robot arm 21 and the bus bar grasping robot arm 32 are all provided with grasping suction cups.

[0044] A rotating structure is provided at the bottom of the battery string conveyor belt 22 to facilitate rotating the direction of the battery string conveyor belt 22 so that the battery string can be grabbed by the centering transmission robot arm 24 .

[0045] The busbar welding system 30 further includes a busbar feeding and cutting device for feeding the busbar grabbing robot 32 .

[0046] The busbar feeding and cutting device comprises a busbar coil 33 , a conveying wheel 34 and a clamping mechanism 36 which are arranged in sequence. A cutting mechanism 35 is also arranged between the conveying wheel 34 and the clamping mechanism 36 .

[0047] The clamping mechanism 36 includes a bottom plate 361, a fourth linear guide 362 is provided on the side of the bottom plate, and a plurality of parallel cylinder clamping heads 363 are provided above the bottom plate 361 through a slider that can move along the fourth linear guide provided on the side of the bottom plate, and the slider is provided on a lead screw driven by a motor so as to be able to move along the fourth linear guide 362. The cylinder clamping head cooperates with the cutting mechanism 35, the cylinder clamping head first clamps the end of the bus bar, and then the slider pulls the cylinder clamping head backward until the bus bar of the required length is obtained, the slider stops moving, the cutting mechanism 35 cuts the bus bar, and then the slider continues to pull the cylinder clamping head backward until it reaches the predetermined position, the cylinder clamping head releases the bus bar and allows the bus bar to fall on the bottom plate, and at this point, the bus bar is ready, which is convenient for the bus bar grabbing mechanical arm 32 to grab.

[0048] A busbar preparation placement groove is provided on the bottom plate 361 and at the rear end of at least one cylinder clamping head.

[0049] A busbar bending unit 364 is also provided on the bottom plate 361 at the rear end of at least one cylinder clamping head 363 .

[0050] The lifting welding machine 31 and the busbar grabbing robot arm 32 for feeding the lifting welding machine 31 are both arranged on the third frame.

[0051] The lifting welding machine 31 includes a base 314 and a lifting drive mechanism 312 fixedly arranged on the base 314. The lifting movable end of the lifting drive mechanism 312 is arranged upward, and a busbar placement heating table 311 is arranged on the lifting movable end. Both sides of the base 314 are also arranged on the third linear guide rail 313 extending below the flip platform 12 through sliders. Both ends of the base 314 can move along the third linear guide rail 313 to move below the flip platform 12. The slider can move along the linear guide rail under the drive of the power device. The third linear guide rail is fixedly arranged on the third frame.

[0052] Working process:

[0053] 1. The battery string (front side facing up) is transported from the battery string conveyor belt to the battery string centering correction platform by the battery string centering transfer robot arm. After pre-positioning, the battery string layout robot arm places it at the predetermined position on the flip platform for layout work, and vacuum-absorbs the battery string through the vacuum adsorption function of the flip platform;

[0054] 2. When all the battery strings on the flip platform are placed in place, the flip platform flips 180° driven by the rotating motor, and the busbar grabbing robot grabs the prepared busbar to the busbar placement heating table of the lifting welding machine. The base of the lifting welding machine moves along the bottom of the flip platform with the busbar, and presses the busbar on the heating table onto the welding strip extending from the head of the battery string through the lifting action of the lifting drive mechanism. At the same time, the heating is turned on to complete the welding work between the battery string and the busbar. The welding of a row of busbars on the battery string group can be completed at one time. When multiple rows of busbars need to be welded, the cycle work can be completed;

[0055] 3. When all the battery strings and bus bars are welded, the glass panel conveyor belt located under the flip platform transports the glass panel with the EVA layer pre-attached to the bottom of the flip platform, releases the vacuum of the flip platform, and the welded battery string group falls on the glass, and then is conveyed to the next station, thus completing the battery string layout and busbar welding of the photovoltaic module.

[0056] The photovoltaic component layout and convergence welding integrated machine of the present invention has an ingenious structure. By introducing a flip platform and then using automated equipment to replace manual component layout and convergence welding work, the output and yield of the product are greatly improved, secondary damage is avoided, and labor costs are reduced at the same time. It is highly practical and worthy of promotion, especially changing the original method that both manual welding and automatic convergence welding machines on the market are completed on glass and EVA, so that the battery string convergence welding is completed as a whole on other platforms and then transferred to the glass and EVA. In this way, there is no need to worry about the problem of EVA being melted by high temperature during welding during the welding process, and the layout and convergence welding are completed together, whether it is transferred by a flip platform or by horizontal transfer of the platform, it is protected.

[0057] The traditional operation method is to prepare the glass first, then lay the battery string on the glass, place an insulating fiberglass board (with scales on the fiberglass board) under the head of the battery string, and manually arrange and align the battery string.

[0058] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. Photovoltaic module layout and confluence welding integrated machine, characterized in that: The invention comprises a frame (11) and a turning platform (12) with a vacuum adsorption function arranged on the frame (11); the turning platform (12) is driven to turn by a rotating motor (13) fixed on the frame; a cell conveying and positioning system (20) and a busbar welding system (30) are respectively arranged next to the turning platform (12) and cooperate with the turning platform (12); the cell conveying and positioning system (20) comprises a cell string layout robot arm (21) and a cell string conveying unit for feeding the cell string layout robot arm (21); the busbar welding system (30) comprises a lifting welding machine (31) movable along the bottom of the turning platform (12) and a lifting welding machine (31) for feeding the lifting welding machine (31) The invention relates to a busbar grabbing mechanical arm (32) for grabbing the material; a glass panel conveyor belt (40) is also provided below the flip platform (12); the lifting welding machine (31) comprises a base (314) and a lifting drive mechanism (312) fixedly arranged on the base (314); the lifting movable end of the lifting drive mechanism (312) is arranged upward; a busbar placement heating table (311) is provided on the lifting movable end; both sides of the base (314) are also arranged on a third linear guide rail (313) extending below the flip platform (12) through a slider; and both ends of the base (314) can move along the third linear guide rail (313) to achieve movement below the flip platform (12).

2. The photovoltaic module layout and busbar welding integrated machine according to claim 1, characterized in that: The glass panel conveyor belt (40) is a liftable glass panel conveyor belt.

3. The photovoltaic module layout and busbar welding integrated machine according to claim 1, characterized in that: Two support frames are arranged on the frame (11) and above the two sides of the flip platform (12); two first linear guide rails (14) are arranged in parallel on the two support frames; a first slider is arranged on the first linear guide rail (14); the battery string typesetting mechanical arm (21) is arranged above the flip platform (12) by being fixed on the first slider; a first gear rack driving mechanism (15) is arranged between the first slider on one side and the support frame, and is used to push the first slider to move along the first linear guide rail (14) with the battery string typesetting mechanical arm (21).

4. The photovoltaic module layout and busbar welding integrated machine according to claim 1, characterized in that: The battery string conveying unit comprises a second frame, a battery string conveyor belt (22) and a battery string centering correction platform (23) for pre-positioning the battery strings, which are sequentially mounted on the second frame. The second frame is also provided with a battery string centering transmission mechanical arm (24) located above the battery string centering correction platform (23) and the battery string conveyor belt (22).

5. The photovoltaic module layout and busbar welding integrated machine according to claim 1, characterized in that: The battery string centering correction platform (23) comprises two symmetrical sub-platforms (231), the distance between the two sub-platforms (231) is adjustable, and both sub-platforms (231) are provided with a cylinder pushing device (232) for adjusting the battery string (100) to the side.

6. The photovoltaic module layout and busbar welding integrated machine according to claim 1, characterized in that: The busbar welding system (30) further comprises a busbar feeding and cutting device for feeding the busbar grabbing mechanical arm (32).

7. The photovoltaic module layout and busbar welding integrated machine according to claim 6, characterized in that: The busbar feeding and cutting device comprises a busbar material roll (33), a conveying wheel (34) and a clamping mechanism (36) which are arranged in sequence, and a cutting mechanism (35) is also provided between the conveying wheel (34) and the clamping mechanism (36).

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