Integrated arrangement and welding machine for photovoltaic cell string

Abstract

The present disclosure provides an integrated arrangement and welding machine for a photovoltaic cell string, comprising a transfer platform, an image acquisition device, a grabbing mechanism, a material receiving platform, an arrangement module, a pressing module, and a welding module. The transfer platform is arranged at the front end of the material receiving platform; the grabbing mechanism is configured to transfer a cell string from the transfer platform to the material receiving platform; the image acquisition device is arranged on the grabbing mechanism, and is configured to acquire a photo of the cell string; the material receiving platform transmits the cell string to the arrangement module, and the arrangement module arranges the cell string; and the welding module is configured to weld the arranged cell string to a busbar. The welding module comprises a welding mechanism and a feeding mechanism; and the welding mechanism is configured to weld the busbar transmitted by the feeding mechanism to the cell string. The present disclosure uses an integrated welding method, which integrates the welding processes of the busbar and the cell string into an integrated device, thereby reducing the welding risks, improving the welding quality, and improving the machining efficiency.

Description

Photovoltaic cell string layout welding integrated machine

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application No. 202411247039.3, filed on September 6, 2024, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure belongs to the field of solar cell processing, and specifically relates to a photovoltaic cell string layout welding integrated machine. BACKGROUND

[0004] A crystalline solar panel is a device that converts solar energy into electrical energy using the photovoltaic effect. It is also known as a photovoltaic solar panel, which is usually composed of multiple photovoltaic cells that absorb sunlight and convert it into direct current electrical energy. These panels can be installed on the roof of a building, on the ground or other appropriate areas for power generation or power supply. As a clean energy power generation method, photovoltaic solar panels are increasingly valued and widely used. Governments and enterprises around the world are investing in photovoltaic power generation projects to reduce dependence on traditional fossil fuels, reduce environmental pollution and promote sustainable development. SUMMARY

[0005] The present disclosure provides a layout welding integrated machine that integrates the layout of the cell string and the welding of the bus bar into an integrated device using an integrated welding method, thereby reducing the risk of welding, improving the quality of welding, and improving the processing efficiency.

[0006] The photovoltaic cell string layout welding integrated machine comprises a transfer table, an image acquisition device, a grabbing mechanism, a receiving platform, a layout module, a pressing module, and a welding module,

[0007] The transfer table is arranged at the front end of the receiving platform, and the grabbing mechanism is used to transfer the cell string from the transfer platform to the receiving platform.

[0008] The image acquisition device is arranged on the grabbing mechanism, and the image acquisition device is used to acquire a photo of the cell string.

[0009] The receiving platform transmits the cell string to the layout module, and the layout module arranges the cell string.

[0010] The welding module is used to weld the arranged cell string and the bus bar, and the welding module comprises a welding mechanism and a feeding mechanism. The welding mechanism is used to weld the bus bar transmitted by the feeding mechanism to the cell string.

[0011] Optionally, the layout module comprises a lifting module and a layout module,

[0012] The lifting module is used to lift or lower the layout module.

[0013] The layout module is used to layout the battery string.

[0014] Optionally, the feeding mechanism is used for cutting and feeding the busbar.

[0015] The welding mechanism is arranged above the feeding mechanism.

[0016] The feeding mechanism further comprises a moving track, which can adjust the horizontal position of the welding mechanism.

[0017] Optionally, the layout module further comprises a positioning module,

[0018] The layout module further comprises a layout support and a layout suction cup set, the layout support is connected with the movable end of the lifting module, the layout suction cup set comprises a suction cup support, a fixed suction cup and an adjustable suction cup, the top of the suction cup support is fixedly connected with the bottom of the layout support, guide blocks, telescopic supports and locking nuts are arranged on both sides of the suction cup support, the telescopic supports are slidably connected with the guide blocks through grooves and are locked and fixed through the locking nuts, the fixed suction cup is arranged on the suction cup support, and the adjustable suction cup is arranged on the telescopic support.

[0019] The layout suction cup set is provided with at least 6 groups.

[0020] The positioning module comprises a pressing cylinder, a pressing support, a pressing block, a damper and a pressing guide rail, the pressing cylinder is fixed on the layout support, the pressing support is connected with the movable end of the pressing cylinder, the pressing block is slidably connected with the bottom of the pressing support, the damper and the pressing guide rail are arranged between the layout support and the pressing support, and the pressing support is slidably connected with the pressing guide rail.

[0021] Optionally, the feeding mechanism comprises at least a tail feeding mechanism, a middle feeding mechanism and a head feeding mechanism.

[0022] The welding mechanism comprises at least a tail welding mechanism, a middle welding mechanism and a head welding mechanism.

[0023] The tail welding mechanism corresponds to the tail feeding mechanism, the middle welding mechanism corresponds to the middle feeding mechanism, and the head welding mechanism corresponds to the head feeding mechanism.

[0024] Optionally, each two groups of layout suction cup sets correspond to one tail welding mechanism, middle welding mechanism or head welding mechanism.

[0025] Optionally, the tail section feeding mechanism comprises a tail section busbar roll, a tail section busbar feeding device, a tail section busbar cutter device, a tail section busbar traction device and a tail section busbar guide rail, the tail section busbar guide rail is provided with an embedding groove, the embedding groove is provided with a magnet, and a guide column is embedded and fixed in the embedding groove. The head section feeding mechanism comprises a head section busbar roll, a head section busbar feeding device, a head section busbar cutter device, a head section busbar traction device and a head section busbar guide rail arranged in sequence, the head section busbar guide rail is provided with an embedding groove, the embedding groove is provided with a magnet, and a guide column is embedded and fixed in the embedding groove.

[0026] Optionally, the middle section feeding mechanism comprises a middle section busbar feeding and bending mechanism, the middle section busbar feeding and bending mechanism comprises a middle section busbar roll, a middle section busbar feeding device, a middle section busbar cutter device, a middle section busbar traction device, a strip placing device, a strip pressing device, a lifting and bending device and a distance changing device,

[0027] The strip placing device comprises a first section strip placing module, a second section strip placing module, a third section strip placing module and a fourth section strip placing module, and a busbar guide block is embedded and fixed on each of the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module,

[0028] The strip pressing device is provided with a strip pressing cylinder and a strip pressing swing arm, the strip pressing device is arranged on the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module respectively, the strip pressing cylinder drives the strip pressing swing arm to rotate and swing to press the middle section busbar, the lifting and bending device is arranged between the first section strip placing module and the second section strip placing module, between the second section strip placing module and the third section strip placing module, and between the third section strip placing module and the fourth section strip placing module, the lifting and bending device comprises a lifting and bending cylinder and a bending block, the bending block is fixedly connected with a movable end of the lifting and bending cylinder, the distance changing device comprises a slide rail and a distance changing cylinder, the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module are in sliding connection with the slide rail, a movable end of the distance changing cylinder is connected with the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module respectively, and the guide widths of the four guide surfaces of the busbar guide block are different.

[0029] Optionally, the tail welding mechanism comprises a driving motor, a driving belt, a sliding block and a welding body, the driving motor is in transmission connection with the sliding block through the driving belt, the welding body is fixed on the sliding block, the welding body comprises a vacuum nozzle, a welding heating device, a camshaft, a reversing device and a cylinder, a slot is arranged on the surface of the welding heating device, the vacuum nozzle is arranged in the slot, the camshaft is arranged below the vacuum nozzle and abuts against the vacuum nozzle, the camshaft is in transmission connection with the cylinder through the reversing device, and an upper limiting block for limiting the extension of the vacuum nozzle is further arranged on the vacuum nozzle.

[0030] Optionally, the feeding mechanism comprises a busbar transfer mechanism, the busbar transfer mechanism comprises a transfer motor, a lead screw, a lifting track, a lifting frame and a transfer nozzle, the movable end of the transfer motor is connected with the lead screw, the lifting frame is in sliding connection with the lifting track and is in threaded connection with the lead screw, and the transfer nozzle is arranged at the bottom of the lifting frame. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 is a structural diagram of the layout and welding all-in-one machine;

[0032] Fig. 2 is a structural diagram of the transfer table in Fig. 1;

[0033] Fig. 3 is a structural diagram of the receiving platform in Fig. 1;

[0034] Fig. 4 is an enlarged structural diagram of the C part in Fig. 3;

[0035] Fig. 5 is a structural diagram of the image acquisition device and the grabbing mechanism in Fig. 1;

[0036] Fig. 6 is a structural diagram of the grabbing suction cup module in Fig. 5;

[0037] Fig. 7 is a structural diagram of the layout module in Fig. 1;

[0038] Fig. 8 is an enlarged structural diagram of the D part in Fig. 7;

[0039] Fig. 9 is a structural diagram of the positioning module in Fig. 7;

[0040] Fig. 10 is a structural diagram of the pressing module in Fig. 1;

[0041] Fig. 11 is a structural assembly diagram of the welding module;

[0042] Fig. 12 is a detailed structural diagram of the tail feeding mechanism in Fig. 11;

[0043] Fig. 13 is an enlarged structural diagram of the B part in Fig. 12;

[0044] Fig. 14 is a detailed structural diagram of the head feeding mechanism in Fig. 11;

[0045] Fig. 15 is a schematic view of the structure of the four-section middle busbar after bending;

[0046] Fig. 16 is a detailed structural view of the middle upper feeding and bending mechanism in Fig. 11;

[0047] Fig. 17 is a detailed structural view of the strip placing device, strip pressing device, lifting and bending device, and distance changing device in Fig. 16;

[0048] Fig. 18 is a structural view of the busbar guide block in Fig. 17;

[0049] Fig. 19 is a detailed structural view of the tail welding mechanism, middle welding mechanism, and head welding mechanism in Fig. 11;

[0050] Fig. 20 is an enlarged view of the structure at A in Fig. 19;

[0051] Fig. 21 is a detailed structural view of the tail transfer mechanism, middle transfer mechanism, and head transfer mechanism in Fig. 11. DETAILED DESCRIPTION

[0052] To further disclose the technical solutions of the present disclosure, the following clearly and completely describes the layout and welding all-in-one machine with reference to the accompanying drawings.

[0053] It should be noted that the terms such as "inner", "middle", and "one" in the present disclosure are only for the convenience of clear description, and are not intended to limit the scope of the present disclosure. Changes or adjustments of the relative relationship without substantial changes in the technical content are also considered as the scope of the present disclosure, and it is stated in advance.

[0054] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second", and the like can explicitly or implicitly include one or more features. In the description of the present disclosure, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood through specific circumstances.

[0055] In the process of processing a crystalline solar cell, it is usually necessary to align the bus bar and the cell string before welding. In the prior art, the welding of the bus bar and the cell string is usually completed by multiple devices in a sequence, such as cutting the bus bar by hand or a special cutting device, arranging the cell string in a single row, then welding the bus bar to the cell string by a segmented and sequential welding method, and finally splicing the cell string. In the above-mentioned way of welding the bus bar and the cell string, since the devices are not integrated, the process is dispersed and the devices are numerous, it is difficult to achieve one-machine alignment, there are risks of welding and heat deformation accumulation, and it is easy to cause component failure and poor work efficiency. In view of this, the present disclosure provides a layout and welding integrated machine.

[0056] The present disclosure transfers the cell string of the previous process on the transfer table to the front for conveying, and then the cell string is grabbed by the grabbing mechanism. Then the image acquisition device takes pictures of the cell string at the first, middle and tail positions and sends them to the rear control end for comparison. The control end feeds back a signal to the grabbing mechanism to correct the position of the cell string before transferring it to the receiving platform. The receiving platform conveys it to the layout module below, and the layout module completes the adsorption and layout of multiple groups of cell strings at one time. At the same time, the welding module transfers the first bus bar, the middle bus bar and the tail bus bar to the cell string below after a series of processes such as cutting and feeding or bending. After alignment, the cell string is pressed tightly by the pressing module and the layout module, and then welded by the welding module. The cell string flows out after welding to complete the processing. In this way, an integrated welding method is adopted, the welding process of the bus bar and the cell string is integrated into an integrated device through process planning, the welding risk is reduced, the welding quality is improved, and the processing efficiency is improved.

[0057] Embodiment:

[0058] Please refer to FIGS. 1 to 21, and specifically refer to FIG. 1, the present disclosure provides a layout and welding integrated machine, which includes a transfer table 100, an image acquisition device 200, a grabbing mechanism 300, a receiving platform 400, a layout module 500, a pressing module 600 and a welding module 700. The transfer table 100 is arranged at the front end of the receiving platform 400. The grabbing mechanism 300 is arranged between the transfer table 100 and the receiving platform 400. The image acquisition device 200 is arranged on the grabbing mechanism 300. The layout module 500 and the pressing module 600 are both arranged above the receiving platform 400. The welding module 700 is arranged between the layout module 500, the pressing module 600 and the receiving platform 400.

[0059] The image acquisition device can be a CCD camera, a COMS camera, or other light-sensitive equipment, which is used to acquire the position information of the solar cell string (not shown in the figure) grabbed by the grabbing mechanism 300.

[0060] In operation, the battery string (not shown in the figure) of the previous process is received on the transfer station 100 and then conveyed forward, and after being conveyed to the lower side of the grabbing mechanism 300, the battery string is grabbed by the grabbing mechanism 300. Then, the image acquisition device 200 takes pictures of the first, middle and tail positions of the battery string and sends them to the rear control end for comparison. The control end feeds back a signal to the grabbing mechanism 300 to correct the position of the battery string, and then the battery string is transferred to the receiving platform 400, which is conveyed to the lower side of the layout module 500. The layout module 500 completes the adsorption and layout of six groups of battery strings at one time. At the same time, the welding module 700 transfers the head bus bar, middle bus bar and tail bus bar to the lower side of the well-laid battery string after a series of processes such as cutting and feeding or bending. After alignment, the battery string is pressed tightly by the lower pressing module 600 and the layout module 500. Then, the battery string is welded by the welding module 700, and finally the battery string is discharged after the welding process. In this way, an integrated welding method is adopted, and the welding process of the bus bar and the battery string is integrated into an integrated device through process planning, which reduces the welding risk, improves the welding quality, and improves the processing efficiency.

[0061] In this embodiment, please refer to FIG. 1 and FIG. 2, the transfer station 100 includes a conveying motor 61, a conveying belt 62 and a conveying platform 63. The conveying motor 61 is in transmission connection with the conveying belt 62, and the conveying platform 63 is arranged between the conveying belts 62. In operation, when the battery string of the previous process is conveyed to the transfer station, the conveying motor 61 drives the conveying belt 62 to rotate, and then drives the battery string to be conveyed forward to the lower side of the grabbing mechanism 300. The conveying platform 63 supports the middle part of the battery string.

[0062] In the embodiment, referring to FIG. 1, FIG. 3 and FIG. 4, the receiving platform 400 comprises two parallel motorized linear guides 64 and a receiving table 65, the movable end of one of the motorized linear guides 64 is provided with a floating track 67, one end of the receiving table 65 is slidably connected with the floating track 67 through a floating block 68, the other end of the receiving table 65 is connected with the movable end of the other motorized linear guide 64, the receiving table 65 is provided with a receiving nozzle 66, during operation, the receiving nozzle 66 receives the battery string dropped by the correction mechanism 300, the receiving nozzle 66 sucks the battery string tightly, then the receiving table 65 is driven by the motorized linear guide 64 to move forward to the layout module 500 below to perform layout, during the conveying process, since one end of the receiving table 65 is fixedly connected with the movable end of the motorized linear guide 64, and the other end is slidably connected with the floating track 67 on the movable end of the motorized linear guide 64 through the floating block 68, even if there is parallel tolerance between the two motorized linear guides 64, the floating block 68 and the floating track can still be adjusted during the forward movement of the receiving table 65, so that the receiving table 65 is not stuck during the forward movement of the motorized linear guide 64, and the operation is more smooth.

[0063] In the embodiment, referring to FIG. 1, FIG. 5 and FIG. 6, the image acquisition device 200 is provided with three groups, the three groups of image acquisition devices include a left front image acquisition device 201, a middle image acquisition device 202 and a right front image acquisition device 203, the grabbing mechanism includes an XYZU four-axis displacement module 71 and a grabbing suction cup module 72, the left front image acquisition device 201, the middle image acquisition device 202 and the right front image acquisition device 203 are arranged above the grabbing suction cup module 72, the grabbing suction cup module 72 includes a suction cup support 721, a fixed suction cup 722 and an adjustable suction cup 723, the suction cup support 721 is fixed on the XYZU four-axis displacement module 71, both sides of the suction cup support 721 are provided with a sliding groove 724, the fixed suction cup 722 is fixed on the middle part of the bottom surface of the suction cup support 721, the adjustable suction cup 723 is slidably connected with the sliding groove 724 and is locked and fixed by a screw 725, during work, the battery string oil transfer platform 100 is transferred to the material receiving platform 400, the battery string is sucked tightly by the grabbing suction cup module, the left front part, the middle part and the right front part of the battery string grabbed by the grabbing suction cup module 72 are photographed and recognized by the left front image acquisition device 201, the middle image acquisition device 202 and the right front image acquisition device 203 and are compared, then the position is corrected by the XYZU four-axis displacement module 71 and is transferred to the material receiving platform 400, and the fixed suction cup 722 and the adjustable suction cup 723 are arranged in the grabbing suction cup module 72, the adjustable suction cup 723 can be adjusted in the sliding groove 724 of the suction cup support 721 by loosening the screw 725 and then is locked by the screw 725, in this way, different battery string specifications can be quickly changed and adjusted, and the use is more convenient.

[0064] In the embodiment, please refer to the drawings 1, 7, 8 and 9, the layout module 500 includes a motor lead screw lifting module 81, a layout module 82 and a positioning module 83, the layout module 82 includes a layout support 821 and a layout suction cup group 822, the layout support 821 is connected with the movable end of the motor lead screw lifting module 81, the layout suction cup group 822 is provided with six groups, and each of the six groups of layout suction cup groups 822 includes a suction cup support 84, a fixed suction cup 85 and an adjustable suction cup 86. The top of the suction cup support 84 is fixedly connected with the bottom of the layout support 821, the two sides of the suction cup support 84 are provided with a guide block 87, a telescopic support 88 and a locking nut 89, the telescopic support 88 is slidably connected with the guide block 87 through a groove 90 and is locked and fixed through the locking nut 89, the fixed suction cup 85 is arranged on the suction cup support 84, and the adjustable suction cup 86 is arranged on the telescopic support 88. The positioning module 83 includes a pressing cylinder 831, a pressing support 832, a pressing block 833, a damper 834 and a pressing guide rail 835, the pressing cylinder 831 is fixed on the layout support 821, the pressing support 832 is connected with the movable end of the pressing cylinder 831, the pressing block 833 is slidably connected with the bottom of the pressing support 832, the damper 834 and the pressing guide rail 835 are arranged between the layout support 821 and the pressing support 832, and the pressing support 832 is slidably connected with the pressing guide rail 835. In work, the layout module 82 and the positioning module 83 are lifted as a whole through the motor lead screw lifting module 81, the battery string conveyed on the receiving platform 400 is adsorbed and lifted, and then the layout is performed. The layout suction cup group 822 is provided with six groups, and the adsorption and layout of six groups of battery strings can be completed at one time. It should be noted that the position of the adjustable suction cup 86 of the six groups of layout suction cup groups 822 can be adjusted by loosening the locking nut 89 to make the telescopic support 88 slide along the guide block 87 in the groove 90. In this way, the position of the adjustable suction cup 86 can be quickly adjusted according to different specifications of the battery string, and the use is more convenient. After the battery string is laid out, the positioning module 83 drives the pressing block 833 to move downward through the pressing cylinder 831 and the pressing support 832, so that the battery string is pressed against the bus bar, and then the battery string is welded. The pressing block 833 and the pressing support 832 are slidably connected during the process, so that the position of the battery string can be quickly adjusted during the type change to adapt to the type change. The damper 834 plays a lifting buffering role, and the pressing guide rail 835 plays a pressing and guiding role of the pressing support 832, so that the operation is more smooth.

[0065] In the embodiment, please refer to the figure 10, the lower pressing die set 600 includes lower pressing cylinder 91, lower pressing support 92 and lower pressing block 93, the lower pressing support 92 is connected with the movable end of the lower pressing cylinder 91, the lower pressing block 93 is slidingly connected with the bottom of the lower pressing support 92, it is need to point out that the lower pressing die set is synchronous with the positioning module 83 to carry out lower pressing, after the battery string and the busbar are well aligned, the positioning module 83 carries out lower pressing to the middle part of the battery string, and the lower pressing die set carries out lower pressing to the front part and the rear part of the battery string respectively, three groups of synchronous lower pressing are realized. The lower pressing module 600 includes front lower pressing module and rear lower pressing module.

[0066] When working, the lower pressing cylinder 91 drives the lower pressing support 92 and the lower pressing block 93 to carry out lower pressing, the front part and the rear part of the battery string are pressed tightly with the busbar, and the lower pressing block 93 and the lower pressing support 92 adopt the sliding connection mode, which is also convenient for quick adjustment when the battery string is changed.

[0067] In the embodiment, after the layout module 500 well lays out six groups of battery strings, the welding module 700 is to cut and feed the busbar or to move to the corresponding position below the battery string after the busbar is bent and aligned, then to carry out heating welding, please refer to the figures 11 to 21, specifically refer to the figure 11, the welding module 700 includes tail feeding mechanism 1 for cutting and feeding the tail busbar, tail welding mechanism 2 for receiving the tail busbar transferred from the tail feeding mechanism 1, tail busbar transfer mechanism 3 for transferring the tail busbar on the tail feeding mechanism 1 to the tail welding mechanism 2, middle busbar feeding and bending mechanism 4 for cutting, feeding and bending the middle busbar, middle welding mechanism 5 for receiving the middle busbar transferred from the middle busbar feeding and bending mechanism 4, middle busbar transfer mechanism 6 for transferring the middle busbar on the middle busbar feeding and bending mechanism 4 to the middle welding mechanism 5, head feeding mechanism 7 for cutting and feeding the head busbar, head welding mechanism 8 for receiving the head busbar transferred from the head feeding mechanism 7, head busbar transfer mechanism 9 for transferring the head busbar on the head feeding mechanism 7 to the head welding mechanism 8, and moving track 10 for horizontal movement of the tail welding mechanism 2, the middle welding mechanism 5 and the head welding mechanism 8.

[0068] The tail welding mechanism 2 is arranged above the tail feeding mechanism 1, the tail busbar transfer mechanism 3 is arranged above the tail welding mechanism 2, the middle welding mechanism 5 is arranged above the middle busbar feeding and bending mechanism 4, the middle busbar transfer mechanism 6 is arranged above the middle welding mechanism 5, the head welding mechanism 8 is arranged above the head feeding mechanism 7, the head busbar transfer mechanism 9 is arranged above the head welding mechanism 8, and the tail welding mechanism 2, the middle welding mechanism 5 and the head welding mechanism 8 are all arranged on the moving track 10.

[0069] In operation, the tail busbar loading mechanism 1 first cuts and loads the tail busbar, then the tail busbar transfer mechanism 3 is lowered to adsorb the tail busbar, and then is lifted, then the tail welding mechanism 2 moves on the moving track 10 to the position between the tail busbar loading mechanism 1 and the tail busbar transfer mechanism 3, then the tail busbar transfer mechanism 3 places the tail busbar on the tail welding mechanism 2, and finally the tail welding mechanism 2 transfers the tail busbar on the moving track 10 to the tail position of the battery string for welding.

[0070] The working principle of the head loading mechanism 7, the head welding mechanism 8, and the head busbar transfer mechanism 9 is the same as that of the tail loading mechanism 1, the tail welding mechanism 2, and the tail busbar transfer mechanism 3, except that the head welding mechanism 8 finally moves the head busbar to the head of the battery string for welding.

[0071] The middle busbar is first cut, loaded, and bent by the middle busbar loading and bending mechanism 4. The middle busbar needs to be bent compared with the head busbar and the tail busbar, so the working principle is different. In operation, the middle busbar loading and bending mechanism 4 cuts, loads, and bends the busbar into the shape shown in FIG. 15, then the middle busbar transfer mechanism 6 is lowered to adsorb and then is lifted, then the middle welding mechanism 5 moves on the moving track 10 to the position between the middle busbar loading and bending mechanism 4 and the middle busbar transfer mechanism 6, then the middle busbar transfer mechanism 6 places the middle busbar on the middle welding mechanism 5, and finally the middle welding mechanism 5 moves to the middle of the battery string for welding.

[0072] In the above manner, the head busbar, the tail busbar, and the middle busbar can be prepared and transferred to the specified position of the battery string independently at the same time. After the battery string is arranged and pressed down, the three welding mechanisms heat and weld the battery string. The arrangement and welding are performed in one station, the cutting, transferring, aligning, and welding of the head, middle, and tail busbars are completed at one time, and the welding efficiency of the battery string and the busbar is improved.

[0073] Moreover, the moving track 10 can horizontally displace the welding mechanism, so that the welding mechanism can be located at different positions to adapt to the welding of different busbar models. For example, the welding mechanism can weld different lengths of busbars and weld the busbars to different positions on the battery string as needed.

[0074] In the embodiment, referring to FIGS. 12 and 13, the tail bus bar feeding mechanism 1 comprises, in sequence, a tail bus bar roll 11, a tail bus bar feeding device 12, a tail bus bar cutter device 13, a tail bus bar traction device 14, and a tail bus bar guide rail 15, wherein the tail bus bar guide rail 15 is provided with a slot 151, the slot 151 is provided with a magnet, and a guide cylinder 152 is embedded and fixed in the slot 151; in operation, the tail bus bar roll 11 is used for feeding, the tail bus bar is pulled by the tail bus bar feeding device 12 and the tail bus bar traction device 14, and after being cut by the tail bus bar cutter device 13, the tail bus bar is introduced into the tail bus bar guide rail 15 to wait for being grabbed by the transfer device; it should be noted that the tail bus bar guide rail 15 is provided with the slot 151, the guide cylinder 152 is a conical fiber cylinder structure, can be inserted into the slot 151 and fixed by the magnet, and can be replaced by different guide cylinders 152 to adapt to different specifications of the bus bar.

[0075] In the embodiment, referring to FIG. 14, the head feeding mechanism 7 comprises, in sequence, a head bus bar roll 21, a head bus bar feeding device 22, a head bus bar cutter device 23, a head bus bar traction device 24, and a head bus bar guide rail 25, wherein the head bus bar guide rail 25 is provided with a slot 141, the slot 141 is provided with a magnet, and a guide cylinder 142 is embedded and fixed in the slot 141; it should be noted that the structure of the head feeding mechanism 7 is the same as that of the tail feeding mechanism 1, and thus is not described herein.

[0076] In the embodiment, referring to FIG. 16, FIG. 17 and FIG. 18, the middle bus bar feeding and bending mechanism 4 comprises a middle bus bar roll 31, a middle bus bar feeding device 32, a middle bus bar cutter device 33, a middle bus bar traction device 34, a placing device 35, a pressing device 36, a lifting and bending device 37 and a distance changing device 38. The placing device 35 comprises a first section placing module 351, a second section placing module 352, a third section placing module 353 and a fourth section placing module 354. A bus bar guide block 39 is embedded and fixed on each of the first section placing module 351, the second section placing module 352, the third section placing module 353 and the fourth section placing module 354. The pressing device 36 is provided in six groups, and each of the six groups of the pressing device 36 is arranged on the first section placing module 351, the second section placing module 352, the third section placing module 353 and the fourth section placing module 354. Each of the six groups of the pressing device 36 comprises a pressing cylinder 361 and a pressing swing arm 362. The pressing cylinder 361 drives the pressing swing arm 362 to rotate and swing to press the middle bus bar. The lifting and bending device 37 is provided in three groups, and each of the three groups of the lifting and bending device 37 is arranged between the first section placing module 351 and the second section placing module 352, between the second section placing module 352 and the third section placing module 353, and between the third section placing module 353 and the fourth section placing module 354. Each of the three groups of the lifting and bending device 37 comprises a lifting and bending cylinder 371 and a bending block 372. The bending block 372 is fixedly connected with a movable end of the lifting and bending cylinder 371. The distance changing device 38 comprises a slide rail 382 and six groups of distance changing cylinders 381. The first section placing module 351, the second section placing module 352, the third section placing module 353 and the fourth section placing module 354 are in sliding connection with the slide rail 382. Movable ends of the six groups of the distance changing cylinders 381 are connected with the first section placing module 351, the second section placing module 352, the third section placing module 353 and the fourth section placing module 354, respectively.

[0077] In operation, the middle bus bar needs to form a shape as shown in FIG. 15 on the middle bus bar feeding and bending mechanism 4, and then the middle bus bar transfer mechanism 6 is used for grabbing, that is, after the middle bus bar roll 31 is unreeled, the middle bus bar unreeled by the middle bus bar unreeled device 32 and the middle bus bar traction device 34 is cut by the middle bus bar cutter device 33, and then is pulled to the strip placing device 35, the middle bus bar corresponding to the first section, the second section, the third section and the fourth section from left to right in FIG. 15 is straight at the beginning, and then is placed on the first section strip placing module 351, the second section strip placing module 352, the third section strip placing module 353 and the fourth section strip placing module 354, and then is pressed tightly by six groups of strip pressing devices 36, that is, the strip pressing swing arms 362 are swung by the strip pressing air cylinders to swing, the bending blocks 372 are lifted by the lifting and bending air cylinders 371 of the three groups of lifting and bending devices 37 to bend the bus bar to the shape as shown in FIG. 15, finally, the first section strip placing module 351, the second section strip placing module 352, the third section strip placing module 353 and the fourth section strip placing module 354 are adjusted in distance on the slide rails 382 by the distance adjusting air cylinders 381 of the six groups of distance adjusting devices 38, and finally are adsorbed and transferred to the middle welding mechanism 5 by the middle bus bar transfer mechanism 6.

[0078] Further, please refer to FIG. 18, the guiding widths of the four guiding surfaces of the bus bar guiding block 39 are different, the bus bar guiding block 39 and the first section strip placing module 351, the second section strip placing module 352, the third section strip placing module 353 and the fourth section strip placing module 354 are fixed in an embedded manner, and the widths of the four guiding surfaces of the bus bar guiding block 39 are different, when the bus bar needs to be changed, the surface with the width suitable for the bus bar is selected and then is embedded into the corresponding first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module, so that the bus bar can be quickly changed and has high versatility.

[0079] In the embodiment, please refer to FIG. 11, FIG. 19 and FIG. 20, the tail welding mechanism 2, the middle welding mechanism 5 and the head welding mechanism 8 each include a driving motor 41, a driving belt 42, a slide block 43 and a welding main body 44, the driving motor 41 is in transmission connection with the slide block 43 through the driving belt 42, the welding main body 44 is fixed on the slide block 43, the welding main body 44 includes a vacuum nozzle 45, a welding heating device 46, a cam shaft 48, a reversing device 49 and an air cylinder 50, the welding heating device 46 is provided with a slot hole 47 on the surface, the vacuum nozzle 45 is arranged in the slot hole 47, the cam shaft 48 is arranged below the vacuum nozzle 45 and abuts against the vacuum nozzle 45, and the cam shaft 48 is in transmission connection with the air cylinder 50 through the reversing device 49.

[0080] It should be noted that the tail welding mechanism 2, the middle welding mechanism 5 and the head welding mechanism 8 are the same structure, only the final position to reach the battery string is different, corresponding to the tail, middle and head position of the battery string. After the positioning mechanism and the pressing mechanism press the arranged battery string,

[0081] Taking the tail bus bar as an example, when the tail welding mechanism 2 receives the tail bus bar, the vacuum suction nozzle 45 is adsorbed, the driving motor 41 drives the driving belt 42 to drive the sliding block 43 to reach the tail of the battery string, then the cylinder 50 drives the reversing device 49 to drive the camshaft 48 to rotate, the camshaft 48 rotates from the protruding end to the recessed end, then the vacuum suction nozzle 45 descends in the slot hole 47, and finally the welding heating device 46 is started to weld. In this way, the vacuum suction nozzle 45 descends below the heating plane when heating and welding, and does not directly contact the heating plane, avoiding heating damage to the vacuum suction nozzle 45.

[0082] Further, the vacuum suction nozzle 45 is further provided with an upper limiting block for limiting the extension, and the extension position of the vacuum suction nozzle 45 is in the same plane through the limiting of the upper limiting block, facilitating adsorption.

[0083] In the embodiment, referring to FIG. 11 and FIG. 21, the tail bus bar transfer mechanism 3, the middle bus bar transfer mechanism 6 and the head bus bar transfer mechanism 9 all include a transfer motor 51, a lead screw, a lifting rail 52, a lifting frame 53 and a transfer suction nozzle 54. The movable end of the transfer motor 51 is connected with the lead screw, the lifting frame 53 is slidingly connected with the lifting rail 52 and threadedly connected with the lead screw, and the transfer suction nozzle 54 is arranged at the bottom of the lifting frame 53.

[0084] It should be noted that the tail bus bar transfer mechanism 3, the middle bus bar transfer mechanism 6 and the head bus bar transfer mechanism 9 are the same structure, and all drive the transfer suction nozzle 54 on the lifting frame 53 to slide up and down on the lifting rail 52 through the lead screw driven by the transfer motor, and then transfer the bus bar at the corresponding position from the feeding mechanism to the welding mechanism.

[0085] Through the above structure, the present disclosure adopts the arrangement and welding integrated mode, after the arrangement of the battery string is completed, the positioning mechanism and the pressing mechanism directly fix the arranged battery string to the welding position, and the three groups of welding mechanisms weld the arranged battery string, reducing the welding risk, improving the welding quality and improving the processing efficiency.

[0086] The present disclosure is not limited to the above-mentioned embodiments, and various modifications or changes of the present disclosure do not deviate from the spirit and scope of the present disclosure, and the present disclosure also includes these changes and modifications if they belong to the scope of the claims and equivalent technology of the present disclosure.

Claims

1. A photovoltaic cell string layout welding all-in-one machine, characterized in that: The device comprises a transfer station, an image acquisition device, a grabbing mechanism, a receiving platform, a layout module, a pressing module and a welding module, The transfer station is arranged at the front end of the receiving platform, and the grabbing mechanism is used to transfer the battery string from the transfer platform to the receiving platform, The image acquisition device is arranged on the grabbing mechanism, and the image acquisition device is used to acquire the photo of the battery string. The receiving platform transmits the battery string to the layout module, and the layout module arranges the battery string. The welding module is used to weld the arranged battery string and the busbar, and the welding module comprises a welding mechanism and a feeding mechanism; the welding mechanism is used to weld the busbar transmitted by the feeding mechanism to the battery string.

2. The layout and welding integrated machine according to claim 1, wherein: The layout module comprises a lifting module and a layout module, The lifting module is used to lift or lower the layout module; The layout module is used to arrange the battery string.

3. The layout-welder integrated machine according to any one of claims 1-2, characterized in that: The feeding mechanism is used for cutting and feeding the busbar; The welding mechanism is arranged above the feeding mechanism; The feeding mechanism further comprises a moving track, which can adjust the horizontal position of the welding mechanism.

4. The layout and welding integrated machine according to any one of claims 1-3, wherein: The layout module further comprises a positioning module, The layout module further comprises a layout support and a layout suction disc group, the layout support is connected with the movable end of the lifting module, the layout suction disc group comprises a suction disc support, a fixed suction disc and an adjustable suction disc, the top of the suction disc support is fixedly connected with the bottom of the layout support, guide blocks, telescopic supports and locking nuts are arranged on both sides of the suction disc support, the telescopic supports are slidably connected with the guide blocks through grooves and are locked and fixed through the locking nuts, the fixed suction disc is arranged on the suction disc support, and the adjustable suction disc is arranged on the telescopic support, The layout suction disc group comprises at least 6 groups; The positioning module comprises a pressing cylinder, a pressing support, a pressing block, a damper and a pressing guide rail, the pressing cylinder is fixed on the layout support, the pressing support is connected with the movable end of the pressing cylinder, the pressing block is slidably connected with the bottom of the pressing support, the damper and the pressing guide rail are arranged between the layout support and the pressing support, and the pressing support is slidably connected with the pressing guide rail.

5. The layout and welding all-in-one machine according to any one of claims 1-4, characterized in that: The feeding mechanism comprises at least a tail feeding mechanism, a middle feeding mechanism and a head feeding mechanism; The welding mechanism comprises at least a tail welding mechanism, a middle welding mechanism and a head welding mechanism; The tail welding mechanism corresponds to the tail feeding mechanism, the middle welding mechanism corresponds to the middle feeding mechanism, and the head welding mechanism corresponds to the head feeding mechanism.

6. The layout and welding all-in-one machine according to claim 5, characterized in that: Each two groups of layout suction disc groups correspond to one tail welding mechanism, middle welding mechanism or head welding mechanism.

7. The layout and welding all-in-one machine according to claim 6, characterized in that: The tail section feeding mechanism comprises a tail section busbar roll, a tail section busbar feeding device, a tail section busbar cutter device, a tail section busbar traction device and a tail section busbar guide rail, the tail section busbar guide rail is provided with an embedding groove, the embedding groove is provided with a magnet, and a guide column is embedded and fixed in the embedding groove.

8. The layout and welding all-in-one machine according to claim 7, characterized in that: The middle section feeding mechanism comprises a middle section busbar feeding and bending mechanism, the middle section busbar feeding and bending mechanism comprises a middle section busbar roll, a middle section busbar feeding device, a middle section busbar cutter device, a middle section busbar traction device, a strip placing device, a strip pressing device, a lifting and bending device and a distance changing device, The strip placing device comprises a first section strip placing module, a second section strip placing module, a third section strip placing module and a fourth section strip placing module, and busbar guide blocks are embedded and fixed on the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module, The strip pressing device is provided with a strip pressing cylinder and a strip pressing swing arm, the strip pressing device is arranged on the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module respectively, the strip pressing cylinder drives the strip pressing swing arm to rotate and swing to press the middle section busbar, the lifting and bending device is arranged between the first section strip placing module and the second section strip placing module, between the second section strip placing module and the third section strip placing module, and between the third section strip placing module and the fourth section strip placing module, the lifting and bending device comprises a lifting and bending cylinder and a bending block, the bending block is fixedly connected with a movable end of the lifting and bending cylinder, the distance changing device comprises a slide rail and a distance changing cylinder, the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module are slidably connected with the slide rail, movable ends of the distance changing cylinder are connected with the first section strip placing module, the second section strip placing module, the third section strip placing module and the fourth section strip placing module respectively, and the four guide surfaces of the busbar guide blocks have different guide widths.

9. The layout and welding all-in-one machine according to claim 8, characterized in that: The tail section welding mechanism comprises a driving motor, a driving belt, a sliding block and a welding main body, the driving motor is in transmission connection with the sliding block through the driving belt, the welding main body is fixed on the sliding block, the welding main body comprises a vacuum suction nozzle, a welding heating device, a camshaft, a reversing device and a cylinder, the welding heating device is provided with a slot hole on a surface thereof, the vacuum suction nozzle is arranged in the slot hole, the camshaft is arranged below the vacuum suction nozzle and abuts against the vacuum suction nozzle, the camshaft is in transmission connection with the cylinder through the reversing device, and an upper limiting block for limiting extension is further arranged on the vacuum suction nozzle.

10. The layout and welding all-in-one machine according to claim 9, characterized in that: The feeding mechanism comprises a busbar transfer mechanism, the busbar transfer mechanism comprises a transfer motor, a lead screw, a lifting track, a lifting frame and a transfer suction nozzle, the movable end of the transfer motor is connected with the lead screw, the lifting frame is slidingly connected with the lifting track and is threadedly connected with the lead screw, and the transfer suction nozzle is arranged at the bottom of the lifting frame.

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