An automated production line and method for photovoltaic cell welding

Abstract

This invention provides an automated production line and method for photovoltaic cell welding, comprising: a dicing device and a stacking welding device, with a string welding device located between the dicing device and the stacking welding device. Cells are transported between the dicing device and the string welding device, and between the string welding device and the stacking welding device, via a conveying mechanism. The dicing device divides large cells into smaller cells, the string welding device strings the smaller cells together, and the stacking welding device stacks the strings-welded cells together. This achieves a continuous process of dicing, string welding, and stacking welding of the loaded cells, effectively reducing the processing time and operating costs of the cells.

Description

Technical Field

[0001] This invention relates to the field of automated battery production equipment technology, specifically to an automated production line and method for welding photovoltaic cells. Background Technology

[0002] With the development of the photovoltaic industry, photovoltaic cells, as the core component of photovoltaic power generation systems, are of great significance in terms of energy transition, economic benefits, environmental sustainability and technological progress. They can become the main body of the world's energy supply in the future, help reduce dependence on fossil fuels and enhance the diversity and security of energy supply. Cell dicing, as a key link in module production, requires different processing of cells.

[0003] For example, patent application CN202311624502.7 discloses a photovoltaic module manufacturing process and cutting equipment. The process involves a ring-shaped intelligent magnetic levitation conveyor that drives a transfer mechanism through a feeding mechanism to load solar cells onto the transfer mechanism. The transfer mechanism then carries the solar cells into a calibration mechanism for calibration. After calibration, the solar cells are transferred to a laser cutting mechanism for cutting. The cut solar cells are then moved by the transfer mechanism to an unloading robot, which removes the solar cells and places them on an unloading platform for subsequent processes.

[0004] The aforementioned literature addresses the issues of inaccurate cell cutting and high defect rates by requiring visual inspection of each box of solar cells before and after dicing, and by performing parameter checks and water conductivity monitoring after dicing to ensure automated welding and testing. However, the production process only implements the dicing process and does not continuously transport and weld the diced cells. This necessitates ensuring the shape and connection reliability of the small cells when dicing them into smaller cells, which in turn ensures the reliability of subsequent stringing and stacking connections. Furthermore, to ensure the connection of photovoltaic cells to the outside, the elongated cells formed by series welding need to be stacked to form a busbar for connection with the series cells. This requires consideration of efficient transport and reliable docking between the welding rod and the elongated cells during stacking. Failure to achieve reliable docking will result in an unreliable connection. The use of multiple transport mechanisms to transport the welding rod and elongated cells increases the processing time and manufacturing costs. Summary of the Invention

[0005] This invention provides an automated production line and method for photovoltaic cell welding. By performing a continuous process of dicing, string welding, and stacking welding on the loaded cells, the time and cost of cell processing are effectively reduced, and the connection reliability is high.

[0006] To achieve the above objectives, one aspect of the technical solution provided by the present invention is: an automated production line for photovoltaic cell welding, comprising a dicing device and a stacking welding device, with a string welding device provided between the dicing device and the stacking welding device. Cells are transported between the dicing device and the string welding device, and between the string welding device and the stacking welding device, via transport mechanisms. The dicing device includes a first conveying mechanism, a feeding conveying mechanism located on both sides of the first conveying mechanism, a dicing mechanism, a second conveying mechanism, a first inspection mechanism, a correction platform, a second gripping mechanism, a second inspection mechanism, and a fourth gripping mechanism. A material box conveying mechanism is provided at one end of the first conveying mechanism and the feeding conveying mechanism. The length is matched with the spacing between the two feeding conveyors. The second gripping mechanism, located between the correction platform and the dicing mechanism, transports the corrected large battery cell to the transfer platform located between the dicing mechanism and the second conveyor. The dicing platforms on both sides of the transfer platform move horizontally alternately between the dicing mechanism and the second conveyor, so that the dicing mechanism divides the large battery cell into two or more small battery cells. The third gripping mechanism grabs the small battery cells on the transfer platform and transports them to the second conveyor. The second detection mechanism detects the small battery cells on the second conveyor and determines the position of the qualified small battery cells. The fourth gripping mechanism grabs the qualified small battery cells and stacks them in the corresponding area.

[0007] The stringing equipment strings together qualified small battery cells and outputs stringed long strip battery cells;

[0008] The shingling equipment includes an electrode conveying mechanism at both ends of the frame, a cell adjustment mechanism at the center of the frame, and a cell conveying module located below the cell adjustment mechanism and mounted on the frame. A welding mechanism is mounted on the frame between the cell conveying module and the electrode conveying mechanism. The cell adjustment mechanism grips the cells and adjusts their position and angle. The welding mechanism includes a welding platform, an electrode transfer device, a platform moving device, and a welding device. The electrode conveying mechanism includes an electrode placement platform, an electrode gripping component, and an electrode cutting component. The electrode gripping component grips the electrode and cuts it into an electrode of the same length as the elongated cell. The electrode transfer device grips the electrode and places it on the welding platform. The platform moving device then transports the electrode to the position corresponding to the cell.

[0009] In the dicing equipment, the above setup enables alternating feeding at two stations via a feeding conveyor mechanism. After the first gripping mechanism finishes feeding the battery cells from the hopper on the feeding conveyor mechanism, an empty hopper is alternately conveyed to the first conveyor mechanism along a direction perpendicular to the feeding conveyor mechanism, thus achieving alternating recycling of empty hoppers. After being gripped by the first gripping mechanism, the battery cells are inspected by the first inspection mechanism and then corrected by a correction platform. This ensures that when the second gripping mechanism picks up the battery cells from the correction platform and conveys them to the transfer platform, the centerline of the battery cells coincides with the axis of the transfer platform, thereby ensuring that the dicing mechanism can accurately cut the battery cells on the transfer platform. Battery cells that are found to be unqualified by the first inspection mechanism are picked up by the second gripping mechanism and moved to the waste area located on one side of the correction platform. After the battery cells are cut, the third gripping mechanism picks up the cut battery cells from the transfer platform and transports them to the second conveyor mechanism. The second inspection mechanism then performs a visual inspection on the cut battery cells. After inspection, unqualified and qualified small battery cells can be picked up separately and stacked in their respective areas.

[0010] After the serially welded solar cells are arranged by a transport mechanism, they are transported to the stacking equipment so that the solar cell transport module can absorb and transport the arranged serially welded solar cells.

[0011] In the lap welding equipment, the welding rod is transported to the welding rod placement platform by the welding rod conveying mechanism. This allows the welding rod transfer device to easily grab the welding rod and place it on the welding platform. The platform moving device ensures that the welding rod is transported to the position corresponding to the solar cell, thus ensuring the accuracy of the welding position. At the same time, the solar cell adjustment mechanism grabs the solar cell and adjusts its position and angle, ensuring that the welding part of the solar cell corresponds to the welding rod. During the welding process, the solar cell adjustment mechanism simultaneously grabs the solar cell, ensuring that the solar cell will not shift in position due to factors of the welding device. This ensures that the lap welding of the solar cells is not easily misaligned and improves the lap welding quality.

[0012] Another aspect of the present invention provides an automated production line method for photovoltaic cell welding, comprising the following steps:

[0013] The S1 feeding conveyor receives and conveys a box loaded with large battery cells. The first gripping mechanism grips the large battery cells onto the correction platform. After gripping, the empty boxes on the feeding conveyor are alternately conveyed to the first conveyor for recycling by the box conveyor.

[0014] The first inspection mechanism in S2 inspects the large battery cell located above the correction platform. First, it inspects the appearance of the battery cell. If it passes the inspection, the first inspection mechanism and the correction platform determine the positional deviation of the battery cell. The correction platform will adjust the position of the large battery cell according to the positional deviation. Then, the second gripping mechanism moves the adjusted large battery cell to a transfer platform located below the dicing mechanism, and then proceeds to step S4. If it fails the inspection, then proceeds to step S3.

[0015] The second gripping mechanism S3 places the non-compliant large battery cells into the waste area, and then proceeds to step S2;

[0016] The S4 dicing mechanism dices a large battery cell on a transfer platform to form a group of smaller battery cells. During dicing, the smaller battery cells that have been diced on another transfer platform are moved to the second conveying mechanism by the third gripping mechanism. The other transfer platform and the first transfer platform are moved to the opposite position in an alternating manner, thereby transporting the diced smaller battery cells on the first transfer platform to the other side of the second conveying mechanism.

[0017] The second conveying mechanism S5 transports the diced small batteries to the area below the second inspection mechanism. The second inspection mechanism performs visual inspection on the diced small battery pieces and determines the positions of unqualified and qualified small battery pieces. Then, the fourth gripping mechanism stacks the qualified small battery pieces into the qualified area and the unqualified small battery pieces into the unqualified area.

[0018] S6 uses a conveying mechanism to transport the stacked qualified small battery cells to the stringing equipment for stringing the small battery cells, and then arranges the stringed long strip battery cells side by side. The conveying mechanism then transports the arranged long strip battery cells to the stacking equipment.

[0019] The S7 uses a cell delivery module to deliver long strip-shaped cells to the area below the cell adjustment mechanism.

[0020] The S8 uses an electrode gripping assembly to grip the electrode and place it on the electrode placement platform. After the electrode gripping assembly pulls the electrode out to a length corresponding to the elongated battery cell, the electrode cutting assembly cuts the electrode.

[0021] S9 uses an electrode transfer device to grab the electrode from the electrode placement platform and transfer it to the welding platform;

[0022] S10 drives the welding platform to move towards the cell adjustment mechanism via the platform moving device, so that the welding platform is located below the welding device;

[0023] S11 causes the cell adjustment mechanism to grasp the elongated cell and adjusts the position and angle of the elongated cell through the position adjustment device, so that the welding part of the elongated cell corresponds to the welding rod;

[0024] S12 uses a welding device to weld the welding rod to the welding part of the long strip battery cell, so that the long strip battery cell is stacked. During the welding process, the battery cell adjustment mechanism simultaneously grabs the long strip battery cell.

[0025] S13 lowers the elongated solar cell through the solar cell adjustment mechanism, and the solar cell conveying module transports the current elongated solar cell to the next process. At the same time, the next set of elongated solar cells is synchronously conveyed to the area below the solar cell adjustment mechanism through the solar cell conveying module.

[0026] In the above setup, step S1 uses an alternating feeding conveyor mechanism to achieve dual-station alternating gripping of battery cells for subsequent processing. Simultaneously, after the battery box is conveyed to the first conveyor mechanism via the battery box conveyor mechanism, the first conveyor mechanism receives and conveys empty battery boxes, thus alternating the recycling of empty battery boxes from the feeding conveyor mechanism. This effectively improves the stability of battery cell conveying and the uninterrupted recycling of battery boxes, thereby increasing efficiency. In steps S1 and S2, the first gripping mechanism transfers the battery cells to the correction platform, achieving precise gripping and placement of the battery cells, reducing positioning deviations from manual operation, and ensuring the reliability of the subsequent gripping by the second gripping mechanism. Step S2 utilizes the first inspection mechanism to first complete the appearance inspection of the large battery cells, which can be used for marking... Before the dicing process, defective products are screened out, and the position of the large battery cells is adjusted to precisely correct their placement, ensuring that the subsequent laser dicing path perfectly matches the preset trajectory. This significantly improves dicing accuracy and cutting consistency. The second gripping mechanism transfers defective products to the waste area, enabling timely diversion of defective products and ensuring that subsequent processes only process qualified battery cells. In step S4, the third gripping mechanism transfers the diced small battery cells to the second conveying mechanism, achieving seamless integration between the dicing process and subsequent inspection processes, improving overall process efficiency. In step S5, the second inspection mechanism performs a visual re-inspection of the diced small battery cells, effectively identifying any cuts made during the dicing process. Defects such as burrs and edge chipping are removed, and then the fourth gripping mechanism sorts and stacks qualified and unqualified small battery cells into corresponding areas. This ensures the quality of the finished small battery cells and facilitates the centralized recycling and processing of unqualified small battery cells, reducing the labor costs of subsequent sorting. In steps S6 and S7, the long strip battery cells after string welding are arranged so that the long strip battery cell conveying module in the stacking equipment can directly absorb and transport the string-welded long strip battery cells. This avoids the long strip battery cells being misaligned after string welding, which would affect the transport of the battery cell conveying module. In steps S8 to S13, the welding rod is transported to the welding rod placement platform by the welding rod conveying mechanism, which facilitates... The welding electrode transfer device picks up the welding electrode and places it on the welding platform. The platform moving device transports the welding electrode to the position corresponding to the elongated solar cell, ensuring accurate welding position. At the same time, the solar cell adjustment mechanism picks up the elongated solar cell and adjusts its position and angle, so that the welding part of the elongated solar cell corresponds to the welding electrode. During the welding process, the solar cell adjustment mechanism simultaneously picks up the elongated solar cell, ensuring that the position of the elongated solar cell does not shift due to the welding device. This ensures that the stacking of the elongated solar cells is not easily misaligned and improves the quality of the stacking of solar cells.

[0027] The beneficial effects of this invention are as follows: In the dicing equipment, the feeding and conveying mechanism realizes alternating feeding at two stations. After the first gripping mechanism finishes feeding the battery cells in the material box on the feeding and conveying mechanism, the material box conveying mechanism alternately conveys empty material boxes to the first conveying mechanism in a direction perpendicular to the feeding and conveying mechanism, thereby realizing the alternating recycling of empty material boxes. After being gripped by the first gripping mechanism, the battery cells are inspected by the first detection mechanism and then corrected by the correction platform to ensure that when the second gripping mechanism picks up the battery cells on the correction platform and conveys them to the transfer platform, the center line of the battery cells coincides with the axis of the transfer platform, thereby ensuring that the dicing mechanism can accurately cut the battery cells on the transfer platform. Battery cells that are found to be unqualified by the first detection mechanism are picked up by the second gripping mechanism and placed in the waste area set on one side of the correction platform. After the battery cells are cut, the third gripping mechanism picks up the cut battery cells on the transfer platform and transports them to the second conveying mechanism. The second detection mechanism performs an appearance inspection on the cut battery cells. After the inspection, unqualified small battery cells and qualified small battery cells can be picked up and stacked in the corresponding areas.

[0028] After the long strip-shaped solar cells are arranged by the conveying mechanism, they are transported to the stacking equipment so that the solar cell conveying module can adsorb and transport the arranged long strip-shaped solar cells.

[0029] In the lap welding equipment, the welding rod is transported to the welding rod placement platform by the welding rod conveying mechanism. This allows the welding rod transfer device to easily grab and place the welding rod onto the welding platform. The platform moving device ensures that the welding rod is transported to the position corresponding to the solar cell, thus guaranteeing accurate welding position. At the same time, the solar cell adjustment mechanism grabs the elongated solar cell and adjusts its position and angle, ensuring that the welding part of the elongated solar cell corresponds to the welding rod. During the welding process, the solar cell adjustment mechanism simultaneously grabs the elongated solar cell, ensuring that the elongated solar cell does not shift position due to factors of the welding device during welding. This ensures that the lap welding of the elongated solar cell is not easily misaligned, thus improving the lap welding quality of photovoltaic solar cells. Attached Figure Description

[0030] Figure 1 This is a structural block diagram of the production line of the present invention.

[0031] Figure 2 This is a partial structural diagram of the dicing device in this invention.

[0032] Figure 3 This is a perspective view of the transfer platform in the dicing device of the present invention.

[0033] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0034] Figure 5 This is a partial structural diagram of the transfer platform in this invention after the lifting plate is removed.

[0035] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0036] Figure 7 for Figure 5 Enlarged view of point C.

[0037] Figure 8 for Figure 2 Enlarged view of point D in the middle.

[0038] Figure 9 This is a schematic diagram of the structure of the correction platform and the second gripping mechanism in the dicing device of the present invention.

[0039] Figure 10 This is a structural block diagram of the lap welding equipment in this invention.

[0040] Figure 11 This is a schematic diagram of the adjustment mechanism in the lap welding equipment of the present invention.

[0041] Figure 12 This is a schematic diagram of the adjusting lifting device in the lap welding equipment of the present invention.

[0042] Figure 13 for Figure 11 Enlarged view of section A2 in the middle.

[0043] Figure 14 This is a schematic diagram showing the connection between the angle adjusting rack and the angle adjusting gear in the stacking welding equipment of the present invention.

[0044] Figure 15 This is another perspective view of the adjustment mechanism in the lap welding equipment of the present invention.

[0045] Figure 16 This is a schematic diagram of the electrode frame in the lap welding equipment of the present invention.

[0046] Figure 17 This is a schematic diagram of the back structure of the electrode conveying mechanism in the lap welding equipment of the present invention.

[0047] Figure 18 for Figure 16 Enlarged view of section B1.

[0048] Figure 19 This is a front view of the electrode conveying mechanism in the lap welding equipment of the present invention.

[0049] Figure 20 This is a schematic diagram of the electrode transfer device in this invention.

[0050] Figure 21 This is a schematic diagram of the platform mobility device in this invention.

[0051] Figure 22 This is a schematic diagram of the welding device in this invention.

[0052] Figure 23 for Figure 21 Enlarged view of point C1.

[0053] Reference numerals: 1c - Dicing device; 2c - String welding device; 3c - Stacking welding device; 4c - Handling mechanism; 5c - Layout area; 6c - Stand; 7c - Feeding conveyor mechanism; 8c - Material box conveyor mechanism; 9c - Large battery cell; 10c - Small battery cell; 1a - First conveying mechanism; 2a - Correction platform; 3a - First inspection mechanism; 4a - Dicing mechanism; 5a - Second gripping mechanism; 6a - Second conveying mechanism; 7a - Transfer platform; 8a - Second inspection mechanism; 9a - First gripping mechanism; 10a - Third gripping mechanism; 11a - Fourth gripping mechanism; s11 - Support; s22 - Moving plate; s21 - Limiting block; s222 - ... Two guide rails; s23-first guide block; s31-limiting baffle; s33-lifting plate; s32-second guide block; s4-drive assembly; s41-first lead screw; s42-first motor; s43-first mounting base; s44-first coupling; s45-first guide rail; s465-lifting assembly; s51-second motor; s52-second mounting base; s53-second coupling; s54-second slider; s55-second lead screw; s66-support plate; s77-connecting plate; s8-dicing stage; s81-placement slot; 1b-first bracket; 11b-fourth 3D module; 21b-first connecting plate; 211b-fourth suction cup; 6b - Receiving box; 61b-Placement component; 81b-First support frame; 82b-Detection camera; 01-Frame; 02-Welding electrode conveying mechanism; 03-Battery cell adjustment mechanism; 04-Battery cell conveying module; 05-Welding mechanism; 1-Adjusting frame; 2-Adjusting lifting device; 21-Adjusting lifting base plate; 22-Adjusting lifting motor; 23-Adjusting lifting gear; 24-Adjusting lifting rack; 25-Adjusting slider; 26-Adjusting slide rail; 3-Position adjustment device; 4-First adjusting component; 41-First adjusting base; 42-First adjusting motor; 43-First adjusting rack; 44-First adjusting guide rail; 45-First adjusting slider; 5-Second adjusting component; 51-Second adjusting base plate; 52-Second adjusting linear motor; 53-Second adjusting connecting block; 6-Angle adjusting assembly; 61-Angle adjusting base plate; 62-Angle adjusting motor; 63-Angle adjusting gear; 64-Angle adjusting turntable; 7-Battery cell adsorption component; 71-Adsorption base plate; 72-Suction cup; 73-Angle adjusting connecting seat; 74-Angle adjusting rack; 75-Curved surface; 76-Clamping tooth; 1z-Welding electrode frame; 11z-Welding electrode placement platform ; 21z-Electrode conveying base; 22z-Limiting roller assembly; 3z-Electrode gripping assembly; 31z-Electrode gripping cylinder; 32z-Electrode gripping connecting block; 33z-Electrode gripping first clamping plate; 34z-Electrode gripping second clamping plate; 35z-Electrode gripping base plate; 36z-Electrode gripping slider; 37z-Electrode gripping guide rail; 4z-Electrode cutting assembly; 40z-Electrode cutting worktable; 41z-Electrode cutting base; 42z-Electrode cutting cylinder;43z - Electrode cutting drive rod; 44z - Electrode cutter; 45z - Electrode cutting plate; 46z - Electrode cutting connecting block; 47z - Cutting limit roller; 5z - Cutting position adjustment assembly; 51z - Cutting position adjustment cylinder; 52z - Cutting position adjustment connecting block; 53z - Position adjustment limit groove; 6z - Electrode fixing assembly; 61z - Electrode fixing cylinder; 62z - Electrode fixing connecting block; 63z - Electrode fixing plate; 64z - Electrode fixing seat; 01z - Electrode ; 1y - Welding platform; 11y - Welding tank; 12y - Vacuum nozzle; 2y - Electrode transfer device; 21y - Electrode transfer bracket; 22y - Electrode transfer moving module; 23y - Electrode transfer lifting module; 24y - Electrode adsorption rod; 3y - Platform moving device; 31y - Platform moving linear motor; 32y - Platform moving guide rail; 33y - Platform moving slider; 4y - Welding device; 41y - Welding bracket; 42y - Welding lifting module; 43y - Welding head. Detailed Implementation

[0054] like Figure 1 As shown, an automated production line for photovoltaic cell welding includes a dicing machine 1c and a stacking welding machine 3c. A string welding machine 2c is provided between the dicing machine 1c and the stacking welding machine 3c. The cells are transported between the dicing machine 1c and the string welding machine 2c, and between the string welding machine 2c and the stacking welding machine 3c, by a transport mechanism 4c. In this embodiment, after the cells are string welded by the string welding machine 2c, the string welded cells are arranged and then transported to the stacking welding machine 3c. The dicing machine 1c, the string welding machine 2c, the stacking welding machine 3c, and the transport mechanism 4c are all mounted on a frame 6c. The output end of the string welding machine 2c has an arrangement area 5c located above the transport mechanism 4c. A robotic arm picks up the arranged string welded cells and places them onto the transport mechanism 4c for transport to the stacking welding machine 3c. In this embodiment, the serially bonded solar cells can be arranged manually within the layout area 5c, or a robotic arm can be used to pick up the cells and arrange them in layout slots within the layout area 5c that match the width of the cells. The transport mechanism 4c can transport the solar cells by driving a conveyor belt with a drive motor.

[0055] like Figures 1-7As shown, the dicing device 1c includes a first conveying mechanism 1a, a feeding conveying mechanism 7c located on both sides of the first conveying mechanism 1a, a correction platform 2a, a first detection mechanism 3a, a dicing mechanism 4a, a second gripping mechanism 5a, a second conveying mechanism 6a, a second detection mechanism 8a, a first gripping mechanism 9a, a third gripping mechanism 10a, and a fourth gripping mechanism 11a. A material box conveying mechanism 8c is provided at one end of the first conveying mechanism and the feeding conveying mechanism 7c. The length of the material box conveying mechanism 8c matches the distance between the two feeding conveying mechanisms 7c. The correction platform 2a is located on one side of the first gripping mechanism 9a. The second gripping mechanism 5a is located between the correction platform 2a and the dicing mechanism 4a. A transfer platform 7a is provided between the dicing mechanism 4a and the second conveying mechanism 6a. The correction platform 2a is used to correct the position of the large battery cells 9c conveyed by the first gripping mechanism 9a. The second gripping mechanism 5a transfers the corrected large battery cells 9c to the second conveying mechanism 6a. The battery cell 9c is conveyed to the transfer platform 7a. Two dicing stages s8 are respectively set on both sides of the transfer platform 7a. The two dicing stages s8 are staggered along the vertical direction of the transfer platform 7a. The two dicing stages s8 move horizontally alternately between the dicing mechanism 4a and the second conveying mechanism 6a. The dicing mechanism 4a divides the large battery cell 9c located below the dicing mechanism 4a into two or more small battery cells 10c and moves them to one side of the second conveying mechanism 6a. The third gripping mechanism 10a grips the small battery cells 10c located on the transfer platform 7a on one side of the second conveying mechanism 6a and conveys them to the second conveying mechanism 6a. The second detection mechanism 8a detects the small battery cells 10c located on the second conveying mechanism 6a and determines the position of the unqualified small battery cells 10c and the position of the qualified small battery cells 10c. The fourth gripping mechanism 11a grips the unqualified small battery cells and qualified small battery cells 10c respectively and stacks them in the corresponding areas. In this embodiment, the conveying direction of the feeding conveyor 7c is perpendicular to the conveying direction of the material box conveyor 8c. Both the feeding conveyor 7c and the material box conveyor 8c are driven by a drive motor to drive the conveyor belt.

[0056] like Figures 3-7As shown, the transfer platform 7a includes a bracket s11. A drive assembly s4 and a moving plate s22 are respectively arranged on both sides of the bracket s11. A lifting assembly s465 and a lifting plate s33 are arranged on the moving plate s22. The lifting assembly s465 includes a second drive, a second lead screw s55, and a second slider s54. The second lead screw s55 is rotatably connected to the second slider s54. The output end of the second drive is connected to the second lead screw s55. The second slider s54 is fixedly connected to the lifting plate s33. Second guide rails s222 are arranged on both sides of the second lead screw s55. One or more sets of second guide blocks s32 are arranged on both sides of the lifting plate s33. The second guide blocks s32 are slidably connected to the second guide rails s222. A connecting plate s77 is arranged on one side of the lifting plate s33. The connecting plate s77 is connected to the dicing stage s8. Evenly spaced... The support plate s66 and the dicing stage s8 are provided with one or more placement slots s81. The support s11 is provided with drive components s4 on both sides. The drive components s4 can drive the moving plate s22 to move in the horizontal direction. The moving plate s22 is provided with a second drive and a second lead screw s55. The second lead screw s55 is provided with a second guide rail s222 on both sides. The lifting plate s33 is provided with two guide blocks on both sides. When the second drive drives the lifting plate s33 to move, the second guide block s32 moves along the direction of the second guide rail s222, thereby ensuring the verticality and stability of the lifting plate s33 in the vertical direction. By driving the lifting plate s33 to move through the second drive, the dicing stages located on both sides of the support s11 are staggered in the vertical direction of the support s11, so that the two dicing stages can move alternately along the length of the support s11.

[0057] like Figures 4-7 As shown, one side of the connecting plate s77 is connected to the lifting plate s33, and the other side of the connecting plate s77 is connected to the dicing table s8. The connecting plate s77 can increase the connection area between the lifting plate s33 and the dicing table s8, which helps to distribute the load. In addition, support plates s66 are evenly arranged between the connecting plate s77 and the lifting plate s33. The arrangement of support plates s66 increases the contact area between the connecting plate s77 and the lifting plate s33, thereby increasing the connection strength between the connecting plate s77 and the lifting plate s33. It also helps to maintain the stability of the dicing table s8 in the horizontal direction and prevent the dicing table s8 from tilting or overturning in the horizontal direction. In this embodiment, two placement slots s81 are provided on the dicing table s8. Each placement slot s81 can hold one large battery cell 9c, that is, two large battery cells 9c can be transported at one time, which speeds up the transport efficiency.

[0058] like Figure 6 and Figure 7As shown, the drive assembly s4 includes a first drive, a first lead screw s41, and a first slider (not shown in the figure). The first slider (not shown in the figure) is rotatably connected to the first lead screw s41. The output end of the first drive is connected to the first lead screw s41. The first slider (not shown in the figure) is fixedly connected to the moving stage. The first drive can drive the first slider (not shown in the figure) to move along the direction of the first lead screw s41. The first slider (not shown in the figure) is fixedly connected to the moving plate s22, and thus the first drive can drive the moving plate s22 to move.

[0059] like Figure 6 and Figure 7 As shown, the first drive includes a first motor s42, a first mounting base s43, and a first coupling s44. The first mounting base s43 is fixedly connected to the bracket s11, and the first motor s42 is fixedly connected to the first mounting base s43. The output end of the first motor s42 is connected to the first lead screw s41 through the first coupling s44. The first mounting base s43 is fixedly connected to the bracket s11. The fixed connection between the first motor s42 and the first mounting base s43 forms a stable connection structure, which helps to reduce the vibration and displacement of the motor during operation. The first motor s42 is directly connected to the first lead screw s41 through the first coupling s44, which reduces the energy loss of the intermediate transmission links. The first coupling s44 helps to alleviate the vibration and impact force generated by the first motor s42 during operation, ensuring the stability of the moving plate s22 in the horizontal direction.

[0060] like Figure 4 As shown, a limit block s21 is provided on one side of the moving plate s22, and a limit baffle s31 is provided on the side of the lifting plate s33 corresponding to the limit block s21. During the upward movement of the lifting plate s33, the limit baffle s31 and the limit block s21 can be used to ensure that the lifting plate s33 stops rising when it reaches the set height, and can also prevent damage to other parts of the lifting assembly s465 due to the lifting plate s33 being too high.

[0061] like Figure 6 and Figure 7 As shown, the first lead screw s41 is provided with first guide rails s45 on both sides, and the moving plate s22 is provided with a first guide block s23. The first guide block s23 is slidably connected to the first guide rail s45. When the first motor s42 drives the moving plate s22 to move, the first guide block s23 and the first guide rail s45 can provide a clear movement path for the moving plate s22, ensuring the straightness of the movement, and can resist the influence of external forces on the moving plate s22 during the movement, ensuring the stability of the moving plate s22.

[0062] like Figure 6 and Figure 7As shown, the second drive includes a second motor s51, a second mounting base s52, and a second coupling s53. The second mounting base s52 is fixedly connected to the moving plate s22, and the second motor s51 is fixedly connected to the second mounting base s52. The output end of the second motor s51 is connected to the second lead screw s55 through the second coupling s53. The second mounting base s52 is fixedly connected to the moving plate s22. The fixed connection between the second motor s51 and the second mounting base s52 forms a stable connection structure, which helps to reduce the vibration and displacement of the motor during operation. The second motor s51 is directly connected to the second lead screw s55 through the second coupling s53, which reduces the energy loss of the intermediate transmission links. The second coupling s53 helps to alleviate the vibration and impact force generated by the first motor s42 during operation, ensuring the stability of the lifting plate s33 in the horizontal direction.

[0063] like Figure 6 and Figure 7 As shown, one side of the support plate s66 is connected to the connecting plate s77, and the other side of the support plate s66 is connected to the lifting plate s33. As an intermediate component between the connecting plate s77 and the lifting plate s33, when the connecting plate s77 or the lifting plate s33 is subjected to external force, the support plate s66 can distribute the external force evenly to the overall structure, thereby reducing structural deformation or damage caused by excessive local stress, and thus providing better load-bearing capacity and shear resistance.

[0064] The connecting plate S77 is connected to the middle of the dicing stage S8. The connection between the connecting plate S77 and the middle of the dicing stage S8 can increase the bending resistance of the dicing stage S8 and help improve the stability of the dicing stage S8.

[0065] like Figure 2 and Figure 8As shown, the fourth gripping mechanism 11a includes a first support 1b, which is located at one end of the second conveying mechanism 6a and spans across the second conveying mechanism. Receiving boxes are provided on both sides of the first support 1b; the receiving box on one side of the first support 1b is the qualified area, and the receiving box on the other side of the first support 1b is the unqualified area. A fourth three-dimensional module 11b is provided on the first support 1b, and a fourth gripping device is provided on the fourth three-dimensional module 11b. The fourth three-dimensional module 11b allows the fourth gripping device to move laterally and longitudinally. The fourth gripping device includes two or more first connecting plates 21b, and two or more sets of fourth suction cups 211b are provided on the first connecting plates 21b. Each set of fourth suction cups 211b corresponds to a receiving box 6b. The fourth gripping device is driven to move laterally and longitudinally by the fourth three-dimensional module 11b. The fourth gripping device is equipped with four... The fourth suction cup 211b picks up the battery cells and places them into the receiving box. Before picking up the small battery cells 10c, the size of the small battery cells 10c is adjusted according to actual needs to meet the needs of the receiving box 6b to collect small battery cells 10c of different sizes. However, when the fourth suction cup 211b picks up the small battery cells 10c, the center position of the small battery cells 10c picked up by the fourth suction cup 211b and the center position of the placement component 61b placed in the receiving box 6b remain unchanged. That is, when the size of the small battery cells 10c increases, the way and number of the fourth suction cups 211b are set up to correspond to the placement component 61b on the receiving box. In this embodiment, the fourth gripping device is provided with four fourth suction cups, each group of small battery cells 10c is provided with two small battery cells 10c, and each receiving box is provided with four placement components 61b.

[0066] like Figure 8 As shown, the fourth three-dimensional module 11b includes a horizontal fourth three-dimensional module and a vertical fourth three-dimensional module. The horizontal fourth three-dimensional module includes a horizontal movement drive motor and a horizontal movement block. In this embodiment, the horizontal movement drive motor drives the conveyor belt to move, and the horizontal movement block is fixed on the conveyor belt to drive the horizontal movement block to move. The vertical fourth three-dimensional module includes a vertical movement motor, which is set on the horizontal movement block. The output end of the vertical movement motor is fixedly connected to the fourth gripping device to realize the vertical movement of the fourth gripping device.

[0067] A handle is provided on one side of the receiving box 6b to facilitate adjustment of the position of the receiving box on the base plate.

[0068] like Figure 2As shown, the second detection mechanism 8a includes first support frames 81b located on both sides of the second conveying mechanism. The first support frames 81b are mounted on the detection frame, and a second three-dimensional module is mounted on the first support frame 81b. Two or more sets of detection cameras 82b are mounted at the lower end of the second three-dimensional module. The number of sets of detection cameras corresponds to the number of sets of fourth suction cups in the fourth gripping mechanism. Each set of detection cameras detects a group of small battery pieces 10c. The detection camera 82b acquires an image of each group of small battery pieces 10c placed on the second conveying mechanism and compares the image with a preset qualified image. If the similarity is within a preset range, the small battery piece 10c is determined to be qualified; otherwise, it is determined to be unqualified. At the same time, when the detection camera 82b moves sequentially along the width direction of the second conveying mechanism, it first passes a small battery piece 10c. The battery pack 10c passes through the gap between two small battery pieces 10c and then through another small battery piece 10c. When the image of the entire battery pack is acquired, the gap in the image is identified as the middle gap of the small battery pieces 10c in the group. Then, the outline of the small battery pieces 10c on both sides of the gap and the center of the small battery pieces 10c are identified to determine the position of each small battery piece 10c in each group. For example, if the small battery pieces 10c in a group are arranged from right to left as the first small battery piece 10c, the second small battery piece 10c, etc., the position of each small battery piece 10c can be determined. This allows the fourth gripping device to move onto the corresponding two groups of small battery pieces 10c and control the ventilation on the corresponding fourth suction cup to adsorb the small battery pieces 10c at different positions and transport them to the corresponding area.

[0069] like Figure 9 As shown, the correction platform 2a includes a base plate, on which a multi-directional drive motor is mounted. The multi-directional drive motor includes a horizontal drive motor, a vertical drive motor, and an angle adjustment drive motor. A platform is mounted on the multi-directional drive motor, and a camera is mounted above the platform. In this embodiment, the correction platform 2a is an existing UVW platform. The method for adjusting the position of the large battery cell 9c placed on the platform is the same as the correction method in Chinese patent application number CN202010761999.7, and will not be described again here. The first conveying mechanism 1a and the second conveying mechanism 6a are existing transmission lines, and the dicing mechanism 4a is an existing laser cutting machine.

[0070] The string welding equipment 2c is used to weld small battery cells into a long strip battery cell. The long strip battery cell is transported to the stacking welding equipment 3c by the conveying mechanism 4c. The structure of the string welding equipment 2c adopts the structure disclosed in Chinese patent application number CN202411993177.6, which will not be described in detail here.

[0071] like Figure 10As shown, the shingling equipment 3c includes a frame 01, with welding rod conveying mechanisms 02 at both ends of the frame 01, a cell adjusting mechanism 03 at the center of the frame 01, and a cell conveying module 04 on the frame 01 below the cell adjusting mechanism 03. A welding mechanism 05 is provided on the frame between the cell conveying module 04 and the welding rod conveying mechanism 02. The cell conveying module 04 is used to convey the cells to the area below the cell adjusting mechanism 03. In this embodiment, the cell conveying module is a device that moves via a motor-driven transmission belt.

[0072] like Figures 10-16 As shown, the battery cell adjustment mechanism 03 includes an adjustment frame 1, on which an adjustment lifting device 2 and a position adjustment device 3 are provided. In this embodiment, there is one or more position adjustment devices. The adjustment lifting device 2 is disposed on the adjustment frame 1, and the position adjustment device 3 is disposed on the adjustment lifting device 2. The position adjustment device 3 includes a first adjustment component 4, a second adjustment component 5, and an angle adjustment component 6. The first adjustment component 4 is disposed on the adjustment lifting device 2, and the second adjustment component 5 is disposed on the first adjustment component 4. The angle adjustment component 6 is disposed on the second adjustment component 5. The first adjustment component 4 drives the second adjustment component 5 to move in the X-axis direction, and the second adjustment component 5 drives the angle adjustment component 6 to move in the Y-axis direction. The angle adjustment component 6 is provided with a battery cell adsorption component 7 for adsorbing battery cells (not shown in the figure), and the angle adjustment component 6 is used to adjust the angle of the elongated battery cell adsorption component 7. In this embodiment, the X-axis direction and the Y-axis direction are as follows: Figure 11 The direction indicated by the middle arrow.

[0073] like Figure 12 As shown, the adjusting and lifting device 2 includes an adjusting and lifting base plate 21, an adjusting and lifting motor 22, an adjusting and lifting gear 23, and an adjusting and lifting rack 24. The adjusting and lifting motor 22 is mounted on the adjusting frame 1, and an adjusting slider 25 is mounted on the adjusting frame 1. The adjusting and lifting base plate 21 is slidably mounted on the adjusting slider 25 via an adjusting slide rail 26, and the adjusting slider 25 slides vertically along the adjusting slide rail 26. The adjusting and lifting gear 23 is mounted on the drive shaft of the adjusting and lifting motor 22, and the adjusting and lifting rack 24, which meshes with the adjusting and lifting gear 23, is mounted on the adjusting and lifting base plate 21. The first adjusting component 4 is mounted on the adjusting and lifting base plate 21. By driving the adjusting and lifting gear 23 to rotate through the adjusting and lifting motor 22, the adjusting and lifting rack 24 is driven to rise and fall, thereby driving the position adjusting device 3 to adsorb the battery cell and achieve adjustment of the elongated battery cell.

[0074] like Figure 11 and Figure 13As shown, the first adjustment component 4 includes a first adjustment base 41, a first adjustment motor 42, a first adjustment rack 43, and a first adjustment gear (not shown in the figure). A first adjustment guide rail 44 is provided on the adjustment lifting base plate 21, and the first adjustment guide rail 44 is arranged along both ends of the adjustment lifting base plate 21. The first adjustment base 41 is slidably mounted on the first adjustment guide rail 44 via a first adjustment slider 45. The first adjustment motor 42 is provided on the first adjustment base 41, and the first adjustment gear is provided on the drive shaft of the first adjustment motor 42. The first adjustment rack 43 is also provided on the adjustment lifting base plate 21, and the first adjustment gear meshes with the first adjustment rack 43. A second adjustment component 5 is provided on the first adjustment base 41. The first adjustment motor 42 drives the first adjustment gear to rotate, thereby driving the first adjustment rack 43 to move, and thus driving the second adjustment component 5 to perform position adjustment.

[0075] like Figure 11 and Figure 13 As shown, the second adjustment component 5 includes a second adjustment base plate 51 and a second adjustment linear motor 52. The second adjustment base plate 51 is disposed on the first adjustment base 41, and the second adjustment linear motor 52 is disposed on the second adjustment base plate 51. A second adjustment connecting block 53 is disposed on the drive shaft of the second adjustment linear motor 52, and an angle adjustment component 6 is disposed on the second adjustment connecting block 53. By driving the second adjustment connecting block 53 through the second adjustment linear motor 52, the position of the angle adjustment component 6 can be adjusted.

[0076] like Figure 13 and Figure 14 As shown, the angle adjustment assembly 6 includes an angle adjustment base plate 61, an angle adjustment motor 62, and an angle adjustment gear 63. The angle adjustment base plate 61 is mounted on the second adjustment connecting block 53. An angle adjustment motor 62 is located at one end of the angle adjustment base plate 61, and an angle adjustment gear 63 is mounted on the drive shaft of the angle adjustment motor 62. The angle adjustment gear 63 is connected to the battery cell adsorption component 7. An angle adjustment turntable 64 is located at the other end of the angle adjustment base plate 61. The battery cell adsorption component 7 is rotatably mounted on the angle adjustment turntable 64. The angle adjustment gear 63 drives the battery cell adsorption component 7 to swing around the angle adjustment turntable 64 as a fulcrum. The angle adjustment motor 62 drives the angle adjustment gear 63 to rotate, thereby driving the battery cell adsorption component 7 to swing around the angle adjustment turntable 64 as a fulcrum.

[0077] like Figure 13As shown, the battery cell adsorption component 7 includes an adsorption substrate 71 and a suction cup 72. The suction cup 72 is disposed below the adsorption substrate 71, and an angle adjustment turntable 64 is located at the center of the adsorption substrate 71. An angle adjustment connecting seat 73 is provided at one end of the angle adjustment turntable 64, and an angle adjustment rack 74 is provided on the angle adjustment connecting seat 73. The angle adjustment rack 74 meshes with the angle adjustment gear 63. The suction cup 72 not only stably grips the elongated battery cell but also prevents damage to the surface of the elongated battery cell.

[0078] like Figure 14 As shown, one side of the angle adjusting rack 74 is provided with an arc-shaped surface 75 extending arc-shaped from the center of the angle adjusting rack 74 to both ends of the angle adjusting rack 74. A retaining tooth 76 that meshes with the angle adjusting gear 63 is provided on the arc-shaped surface 75. The arc-shaped surface 75 ensures that the angle adjusting rack 74 moves with a certain arc when the angle adjusting gear 63 drives it to move. In this embodiment, the middle part of the angle adjusting rack 74 near the angle adjusting gear 63 protrudes towards the angle adjusting gear 63. Thus, the angle adjusting gear 63 rotates under the driving force, thereby driving the angle adjusting rack 74 to move. When the angle adjusting rack 74 moves from its center to one side, the plane of the suction cup 72 swings to one side around the angle adjusting gear 63. Figure 14 As shown in direction A1, the angle of suction cup 72 can be adjusted, which facilitates the adjustment of the position of the long strip battery cell in various aspects.

[0079] like Figure 12 As shown, in the stacking welding equipment, by setting a first adjustment component 4, a second adjustment component 5, and an angle adjustment component 6, the first adjustment component 4 drives the second adjustment component 5 to move in the X-axis direction, and the second adjustment component 5 drives the angle adjustment component 6 to move in the Y-axis direction. The angle adjustment component 6 is used to adjust the angle of the strip-shaped battery cell adsorption component 7, thereby enabling the adsorption of the strip-shaped battery cell according to its current position and adjusting the position of the battery cell. This ensures that each strip-shaped battery cell to be stacked is in a preset position, thereby improving the yield of stacking welding and resulting in a better stacking welding effect.

[0080] like Figures 16-19As shown, the electrode conveying mechanism includes an electrode frame 1z, an electrode placement platform 11z, an electrode conveying base 21z, an electrode gripping component 3z, and an electrode cutting component 4z. The electrode placement platform 11z is mounted on the electrode frame 1z. The electrode conveying base 21z is mounted on the electrode frame 1z at one end of the electrode placement platform 11z. The electrode cutting component 4z is mounted on the electrode conveying base 21z via a cutting position adjustment component 5z. The electrode gripping component 3z is located on the electrode frame 1z above the electrode placement platform 11z and moves along both ends of the electrode placement platform 11z. The electrode 01z passes through the electrode cutting component 4z and is gripped by the electrode gripping component 3z. The cutting position adjustment component 5z drives the electrode cutting component 4z to extend and retract towards the side of the electrode conveying base 21z closer to the electrode placement platform 11z.

[0081] like Figure 17 As shown, the cutting position adjustment assembly 5z includes a cutting position adjustment cylinder 51z and a cutting position adjustment connecting block 52z. The cutting position adjustment cylinder 51z is located at the rear end of the welding rod conveying base 21z. The cutting position adjustment connecting block 52z is provided on the piston rod of the cutting position adjustment cylinder 51z, and the welding rod cutting assembly 4z is provided on the cutting position adjustment connecting block 52z. The cutting position adjustment cylinder 51z drives the welding rod cutting assembly 4z to extend and retract, thereby ensuring that the welding rod cutting assembly 4z will not obstruct the welding rod gripping assembly 3z.

[0082] like Figure 17 and Figure 18 As shown, a position adjustment limiting groove 53z is provided on the electrode conveying base 21z, and the cutting position adjustment connecting block 52z is located within the position adjustment limiting groove 53z. The position adjustment limiting groove 53z limits the extension and retraction distance of the electrode cutting assembly 4z, preventing excessive movement that could affect the conveying of the electrode 01z.

[0083] like Figure 18 and Figure 19As shown, the electrode cutting assembly 4z includes an electrode cutting base 41z, an electrode cutting cylinder 42z, an electrode cutting drive rod 43z, and an electrode cutter 44z. The electrode cutting base 41z is mounted on the cutting position adjustment connecting block 52z. An electrode cutting worktable 40z is provided at the lower end of the electrode cutting base 41z, and an electrode cutting plate 45z is provided on the outer side of the electrode cutting worktable 40z. The electrode 01z is placed on the electrode cutting worktable 40z and passes through the electrode cutting plate 45z. A welding electrode cutting cylinder 42z is provided at the top of the welding electrode cutting base 41z. A welding electrode cutting connecting block 46z is provided on the piston rod of the welding electrode cutting cylinder 42z. The center of the welding electrode cutting drive rod 43z is hinged to the welding electrode cutting base 41z, and one end of the welding electrode cutting drive rod 43z is hinged to the welding electrode cutting connecting block 46z. The welding electrode cutter 44z is provided at the other end of the welding electrode cutting drive rod 43z, and the back of the welding electrode cutter 44z is in contact with the welding electrode cutting plate 45z. When the welding electrode cutting cylinder 42z retracts, it drives one end of the welding electrode cutting drive rod 43z to swing upward, which in turn drives the other end of the welding electrode cutting drive rod 43z to swing downward, thereby driving the welding electrode cutter 44z to move downward to cut the welding electrode 01z.

[0084] like Figure 18 and Figure 19 As shown, a cutting limiting roller 47z is provided on the welding rod cutting base 41z above the welding rod cutting worktable 40z. The welding rod 01z is located between the cutting limiting roller 47z and the welding rod cutting worktable 40z, and the cutting limiting roller 47z is in rolling connection with the welding rod 01z. By setting the cutting limiting roller 47z, the welding rod 01z is limited in its movement, preventing it from moving randomly.

[0085] like Figures 17-19As shown, the electrode gripping assembly 3z includes an electrode gripping cylinder 31z, an electrode gripping connecting block 32z, a first electrode gripping clamping plate 33z, a second electrode gripping clamping plate 34z, an electrode gripping base plate 35z, and an electrode gripping slider 36z. An electrode gripping guide rail 37z is provided on the electrode frame 1z on one side of the electrode placement platform 11z. The electrode gripping base plate 35z is slidably mounted on the electrode gripping guide rail 37z via the electrode gripping slider 36z. The electrode gripping cylinder 31z is provided on the electrode gripping base plate 35z, and the electrode gripping connecting block 32z is hinged to the piston of the electrode gripping cylinder 31z. On the rod, a second electrode gripping clamp 34z is provided on the side wall of the electrode gripping base plate 35z above the electrode placement platform 11z. One end of the first electrode gripping clamp 33z is hinged to the electrode gripping base plate 35z, and the other end of the first electrode gripping clamp 33z is hinged to the electrode gripping connecting block 32z. The first electrode gripping clamp 33z and the second electrode gripping clamp 34z are correspondingly arranged. An electrode gripping drive module (not shown in the figure) for driving the electrode gripping slider 36z to move is also provided on the electrode frame 1z. In this embodiment, the electrode gripping drive module is a drive component such as a motor or cylinder. The electrode gripping cylinder 31z drives the electrode gripping connecting block 32z to extend and retract, and causes the electrode gripping first clamping plate 33z to swing up and down, so that an opening for gripping the electrode 01z is formed between the electrode gripping first clamping plate 33z and the electrode gripping second clamping plate 34z. This facilitates the gripping of the electrode 01z. When the electrode gripping cylinder 31z extends and retracts, the electrode gripping first clamping plate 33z swings around the hinge point with the electrode gripping base plate 35z as the fulcrum, thereby forming an opening between the electrode gripping first clamping plate 33z and the electrode gripping second clamping plate 34z.

[0086] like Figure 18 and Figure 19 As shown, a welding rod fixing assembly 6z is provided on the side of the welding rod feeding base 21z away from the welding rod placement platform 11z. The welding rod fixing assembly 6z includes a welding rod fixing cylinder 61z, a welding rod fixing connecting block 62z, and a welding rod fixing plate 63z. The welding rod fixing cylinder 61z is located at the top of the welding rod feeding base 21z. The welding rod fixing connecting block 62z is provided on the piston rod of the welding rod fixing cylinder 61z. A welding rod fixing seat 64z is provided at the lower end of the welding rod feeding base 21z. The center of the welding rod fixing plate 63z is hinged to the welding rod feeding base 21z above the welding rod fixing seat 64z. One end of the welding rod fixing plate 63z is hinged to the welding rod fixing connecting block 62z. A welding rod is provided between the other end of the welding rod fixing plate 63z and the welding rod fixing seat 64z. When the electrode fixing cylinder 61z retracts, it causes one end of the electrode fixing plate 63z to swing upward, which in turn causes the other end of the electrode fixing plate 63z to swing downward and press and fix the electrode 01z. This makes it easier to prevent the electrode 01z from moving around when the electrode cutting assembly 4z is extended and retracted by the adjusting cylinder 51z at the cutting position.

[0087] like Figure 18 As shown, in this embodiment, a set of one or more limiting roller groups 22z are provided on the electrode conveying base 21z along the moving direction of the electrode 01z. The limiting roller group 22z has two limiting rollers. The electrode 01z is located between the two limiting rollers and the limiting rollers are in rolling connection with the electrode. The limiting rollers limit the moving direction of the electrode to prevent the electrode from deviating.

[0088] like Figure 17 and Figure 18 As shown, the electrode cutting assembly 4z is mounted on the electrode conveying base 21z via the cutting position adjustment assembly 5z. The cutting position adjustment assembly 5z drives the electrode cutting assembly 4z to extend and retract towards the electrode placement platform 11z on the electrode conveying base 21z. This allows the electrode cutting assembly 4z to retract after cutting the electrode 01z, resulting in the electrode cutting surface extending outwards. This facilitates the electrode gripping assembly 3z to grip the next electrode 01z. After the next electrode 01z is gripped and pulled to a suitable length, the cutting position adjustment assembly 5z drives the electrode cutting assembly 4z to extend a certain distance and continue cutting the electrode 01z. The cycle repeats after cutting and retraction, ensuring that the electrode cutting assembly 4z does not obstruct the operation of the electrode gripping assembly 3z, thus achieving high electrode conveying efficiency.

[0089] like Figure 10 , Figures 20-22 As shown, the welding mechanism 05 includes a welding platform 1y, a welding rod transfer device 2y, a platform moving device 3y, and a welding device 4y. The welding rod transfer device 2y is mounted on the frame 01. A welding rod placement platform 11z is provided on one side of the welding rod transfer device 2y, and a platform moving device 3y is provided on the other side of the welding rod transfer device 2y. The welding platform 1y is mounted on the platform moving device 3y. The platform moving device 3y drives the welding platform 1y to move towards the battery cell conveying module 04. The welding device 4y is located between the battery cell adjustment mechanism 03 and the platform moving device 3y.

[0090] like Figure 20As shown, the electrode transfer device 2y includes an electrode transfer bracket 21y, an electrode transfer moving module 22y, an electrode transfer lifting module 23y, and an electrode suction rod 24y. The electrode transfer bracket 21y is mounted on the frame 01. The electrode transfer moving module 22y is mounted on the electrode transfer bracket 21y, and the electrode transfer lifting module 23y is mounted on the electrode transfer moving module 22y. The electrode suction rod 24y is mounted on the electrode transfer lifting module 23y, and a vacuum suction cup (not shown in the figure) is mounted on the electrode suction rod 24y. There is one or more electrode suction rods arranged along the length of the electrode placement platform. The vacuum suction cup adsorbs the electrode on the electrode placement platform 11z. In this embodiment, the electrode transfer moving module and the electrode transfer lifting module are devices that drive a lead screw to rotate via a motor or a piston rod to move via a cylinder. The electrode transfer and lifting module 23y drives the electrode adsorption rod 24y to move downward, so that the vacuum suction cup adsorbs the electrode located on the electrode placement platform 11z. Then, the electrode can be transferred to the welding platform 1y by the electrode transfer and moving module 22y. The structure is simple and effective.

[0091] like Figure 21 and Figure 23 As shown, the platform moving device 3y includes a platform moving linear motor 31y, a platform moving guide rail 32y, and a platform moving slider 33y. The platform moving linear motor 31y is mounted on the frame 01. A welding platform 1y is mounted on the drive end of the platform moving linear motor 31y. Platform moving guide rails 32y are mounted on the frame 01 on both sides of the platform moving linear motor 31y. The two ends of the welding platform 1y are slidably mounted on the platform moving guide rails 32y via the platform moving slider 33y. The platform moving linear motor drives the welding platform to move, thereby enabling the welding rod to be moved to the position corresponding to the elongated battery cell, thus facilitating welding.

[0092] like Figure 23 As shown, a welding platform 1y is provided with a welding groove 11y for placing welding rods, and a vacuum nozzle 12y for adsorbing welding rods 01z is provided below the welding groove 11y. In this embodiment, there is one or more vacuum nozzles 12y arranged along the length of the welding platform. By setting the vacuum nozzles 12y, when the welding platform 1y moves, the vacuum nozzles 12y can adsorb the welding rods, thereby ensuring that the welding rods do not shift and thus ensuring the accuracy of welding.

[0093] like Figure 22As shown, the welding device 4y includes a welding bracket 41y, a welding lifting module 42y, and a welding head 43y. The welding bracket 41y is mounted on the frame 01, and the welding lifting module 42y is mounted on the welding bracket 41y. The welding head 43y is mounted on the welding lifting module 42y. By driving the welding head 43y downward through the welding lifting module 42y, the battery cells can be stacked and welded. In this embodiment, the welding lifting module is a device that drives a gear rack or a lead screw via a motor, thereby moving other devices.

[0094] like Figure 1 and Figure 23 As shown, an automated production line method for photovoltaic cell welding includes the following steps:

[0095] The S1 feeding conveyor 7c receives and conveys a box containing large battery cells 9c. The first gripping mechanism 9a grips the battery cells onto the correction platform 2a. After gripping, the empty boxes on the feeding conveyor 7c are alternately conveyed to the first conveying mechanism 1a by the box conveyor 8c for reverse conveying and recycling.

[0096] S2 The first inspection mechanism 3a inspects the battery cells on the correction platform 2a. First, it inspects the appearance of the battery cells. The first inspection mechanism 3a acquires an image of the large battery cell 9c and compares it with a preset image of the large battery cell 9c to determine whether the appearance of the large battery cell 9c is qualified. If it is qualified, the first inspection mechanism 3a inspects the position of the battery cell. The correction platform 2a determines the adjustment value of the position of the battery cell. Then, the second gripping mechanism 5a moves the large battery cell 9c to a transfer platform located below the dicing mechanism and then proceeds to step S4. If it is not qualified, then proceeds to step S3.

[0097] S3 uses the second gripping mechanism 5a to place the non-conforming large battery cell 9c into the waste area, and then proceeds to step S2.

[0098] The S4 dicing mechanism dices a large battery cell 9c located on a transfer platform 7a to form a group of small battery cells 10c. During dicing, the small batteries that have been diced on another transfer platform are moved to the second conveying mechanism by the third gripping mechanism. The other transfer platform and the first transfer platform are moved to the relative position in an alternating manner, thereby transporting the diced small batteries on the first transfer platform to the other side of the second conveying mechanism 6a.

[0099] The second conveying mechanism 6a transports the diced small batteries to the area below the second inspection mechanism 8a. The second inspection mechanism 8a performs visual inspection on the diced small battery pieces 10c and determines the positions of the unqualified small battery pieces 10c and the qualified small battery pieces 10c. Then, the fourth gripping mechanism stacks the qualified small battery pieces 10c into the qualified area and the unqualified small battery pieces 10c into the unqualified area.

[0100] Step S5 specifically includes: S51~S53,

[0101] When S51 performs visual inspection on the diced small battery cells 10c by the second inspection mechanism 8a, the second inspection mechanism 8a is set in two groups. The small battery cells 10c are arranged in a matrix on the second conveying mechanism 6a. The small battery cells 10c arranged along the transverse direction of the second conveying mechanism 6a constitute a group of battery cells. Each second inspection mechanism 8a corresponds to a group of small battery cells 10c. The second inspection mechanism 8a moves on a group of small battery cells 10c and identifies and determines the position of the qualified small battery cells 10c and the position of the unqualified battery cells in the group of small battery cells 10c.

[0102] S52 The fourth gripping mechanism 11a activates the corresponding fourth gripping device to grip the defective battery cell 10c in a set of small battery cells 10c according to its position, and moves it to the defective area; specifically, the fourth three-dimensional module 11b drives the fourth gripping device to move to the corresponding position of the two sets of small battery cells 10c above the second conveying mechanism, and then opens the air valve connected to the fourth suction nozzle corresponding to the position of the defective small battery cell 10c in a set of small battery cells 10c, thereby achieving adsorption of the defective small battery cell 10c at that position;

[0103] The fourth gripping device S53 activates the corresponding gripping device to grip the qualified battery cell 10c in a group of small battery cells 10c according to its position, and moves it to the qualified area.

[0104] In this embodiment, two large battery cells 9c are transported to the dicing stage each time. The dicing mechanism divides each large battery cell 9c into two small battery cells 10c. Then, four small battery cells 10c are transported to the second conveying mechanism each time. The four small battery cells 10c are arranged in a matrix to form two rows and two columns. Each row is a group of small battery cells 10c. Each group of small battery cells 10c has two vertically arranged small battery cells 10c.

[0105] S6 uses a conveying mechanism 4c to transport the stacked qualified small battery cells 10c to a string welding equipment 2c for string welding. After string welding, the long strip battery cells are arranged side by side, and then the conveying mechanism 4c transports the arranged long strip battery cells to a stacking welding equipment 3c.

[0106] The S7 cell delivery module 04 delivers the cells to the area below the cell adjustment mechanism 03.

[0107] The S8 electrode gripping component 3z grips the electrode 01z and places the electrode 01z onto the electrode placement platform 11z. After the electrode gripping component 3z pulls the electrode out to the length corresponding to the elongated battery cell, the electrode cutting component 4z cuts the electrode.

[0108] The S9 electrode transfer device 2y picks up the electrode from the electrode placement platform and transfers it to the welding platform 1y.

[0109] The S10 platform moving device 3y drives the welding platform 1y to move towards the battery cell adjustment mechanism 03, so that the welding platform 1y is located below the welding device 4y.

[0110] The S11 cell adjustment mechanism 03 picks up the elongated cell and adjusts its position using the position adjustment device 3, so that the welding part of the elongated cell corresponds to the welding rod.

[0111] The S12 welding device 4y welds the welding rod 01z to the welding part of the elongated battery cell, so that the elongated battery cell is stacked. During the welding process, the battery cell adjustment mechanism 03 simultaneously grabs the battery cell.

[0112] S13 cell adjustment mechanism 03 lowers the elongated cell, and cell conveying module 04 transports the current elongated cell to the next processing equipment. At the same time, the next set of cells is synchronously conveyed to the cell adjustment mechanism 03 through cell conveying module 04.

[0113] The working principle of this invention is as follows: A feeding conveyor 7c receives and transports a material box loaded with large battery cells 9c. A first gripping mechanism 9a transfers the large battery cells 9c to a correction platform 2a. Then, a first inspection mechanism 3a performs an appearance inspection of the large battery cells 9c, removing defective products before the dicing process. The position of the large battery cells 9c is then adjusted to precisely correct their placement, ensuring that the subsequent laser dicing path perfectly matches the preset trajectory. After gripping the large battery cells 9c, an empty material box is transported to the first conveying mechanism 1a via a material box conveyor 8c. The recycling process is achieved on stage a. Then, a transfer platform 7a facilitates alternating transport between the dicing mechanism and the second conveying mechanism 6a. While one transfer platform 7a moves below the dicing mechanism for dicing, another transfer platform 7a transports the pre-divided small batteries to one side of the second conveying mechanism, achieving alternating cutting of the large battery cells 9c. A third gripping mechanism 10a transfers the diced small battery cells 10c to the second conveying mechanism 6a, and a second inspection mechanism 8a performs a visual re-inspection of the diced small battery cells 10c. Finally, a fourth gripping mechanism separates the qualified and unqualified small battery cells. The battery cells 10c are sorted and stacked in their corresponding areas. Simultaneously, qualified small battery cells 10c are stacked and stored using the receiving box 6b. The qualified small battery cells 10c stacked in the receiving box 6b are transported by the conveying mechanism 4c to the stringing equipment 2c for stringing. After stringing, the elongated battery cells are arranged by the conveying mechanism 4c and then transported to the stacking equipment 3c. The welding rod 01z is conveyed to the welding rod placement platform 11z by the welding rod conveying mechanism 02. Then, the platform moving device 3y ensures that the welding rod is conveyed to the position corresponding to the elongated battery cell. This ensures accurate welding position. Simultaneously, the cell adjustment mechanism 03 grasps and adjusts the position of the elongated cell, ensuring that the welding part of the elongated cell corresponds to the welding rod. During the welding process, the cell adjustment mechanism 03 simultaneously grasps the elongated cell to ensure that the elongated cell will not shift position due to factors such as the welding device 4y or the elongated cell itself. This ensures that the stacking of the elongated cell is not easily misaligned, thus improving the stacking quality of photovoltaic cells.

Claims

1. An automatic production line applied to the welding of photovoltaic cells, comprising a cell cutting device and a cell stacking device, a stringer device being arranged between the cell cutting device and the cell stacking device, characterized in that: The battery piece is transported between the scribing device and the string welding device and between the string welding device and the overlap welding device through the conveying mechanism. The scribing device comprises a first conveying mechanism, a feeding conveying mechanism located on both sides of the first conveying mechanism, a scribing mechanism, a second conveying mechanism, a correction platform, a second detection mechanism and a fourth grabbing mechanism. The first conveying mechanism and one end of the feeding conveying mechanism are provided with a material box conveying mechanism. The length of the material box conveying mechanism matches the spacing between the two feeding conveying mechanisms. The second grabbing mechanism located between the correction platform and the scribing mechanism transports the corrected large battery piece to a transfer platform located between the scribing mechanism and the second conveying mechanism. The scribing table on both sides of the transfer platform moves alternately between the scribing mechanism and the second conveying mechanism, so that the scribing mechanism divides the large battery piece into two or more small battery pieces. The third grabbing mechanism grabs the small battery pieces on the transfer platform and transports them to the second conveying mechanism. The second detection mechanism detects the small battery pieces on the second conveying mechanism and determines the position of the qualified small battery pieces. The fourth grabbing mechanism grabs the qualified small battery pieces and stacks them in the corresponding area. The string welding device strings the qualified small battery pieces and outputs long strip-shaped battery pieces. The overlap welding device comprises a welding rod conveying mechanism arranged at both ends of a rack, a battery piece adjusting mechanism located at the center of the rack and a battery piece conveying module arranged on the rack below the battery piece adjusting mechanism. A welding mechanism is arranged on the rack between the battery piece conveying module and the welding rod conveying mechanism. The battery piece adjusting mechanism grabs the battery piece and adjusts the position and angle of the battery piece. The welding mechanism comprises a welding platform, a welding rod transfer device, a platform moving device and a welding device. The welding rod conveying mechanism comprises a welding rod placement platform, a welding rod grabbing assembly and a welding rod cutting assembly. The welding rod grabbing assembly grabs the welding rod and cuts it into welding rods with the same length as the long strip-shaped battery piece through the welding rod cutting assembly. The welding rod transfer device grabs the welding rod and places it on the welding platform. The platform moving device transports the welding rod to the position corresponding to the battery piece. The transfer platform comprises a support, driving assemblies and a moving plate arranged on both sides of the support, a scribing machine arranged at one end of the support and a second conveying mechanism arranged at one side of the other end of the support. The driving assemblies are used to drive the moving plate to move along the length direction of the support. The moving plate is provided with a lifting assembly and a lifting plate. The lifting assembly comprises second driving assemblies and limiting assemblies. The second driving assemblies are arranged in the middle of the lifting plate, and the limiting assemblies are arranged on both sides of the second driving assemblies. The lifting assembly drives the lifting plate to move in the vertical direction of the support. One side of the lifting plate is provided with a connecting plate. One side of the connecting plate is connected with the scribing table, and the other side of the connecting plate is uniformly provided with one or more than one supporting plate between the connecting plate and the lifting plate. One side of the supporting plate is fixedly connected with the connecting plate, and the other side of the supporting plate is fixedly connected with the lifting plate. The scribing table is provided with two or more than two placing grooves.

2. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The second driving assembly comprises a second drive, a second screw rod and a second sliding block, the second screw rod is in threaded connection with the second sliding block, the output end of the second drive is connected with the second screw rod, the second sliding block is fixedly connected with the lifting plate, the limiting assembly comprises second guide rails and second guide blocks, the second screw rod is provided with the second guide rails on both sides, the lifting plate is provided with more than one second guide block on both sides, and the second guide block is in sliding connection with the second guide rail; The driving assembly comprises a first drive, a first screw rod and a first sliding block, the first sliding block is in threaded connection with the first screw rod, the output end of the first drive is connected with the first screw rod, and the first sliding block is fixedly connected with the moving table; one side of the moving plate is provided with a limiting block, and one side of the lifting plate corresponding to the limiting block is provided with a limiting baffle.

3. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The fourth grabbing mechanism comprises a first support, the first support is located at one end of the second conveying mechanism and is arranged across the second conveying mechanism, the first support is provided with a fourth three-dimensional module, the fourth three-dimensional module is provided with a fourth grabbing device, both sides of the first support are provided with material receiving assemblies, the material receiving box on one side of the first support is a qualified area, and the material receiving box on the other side of the first support is an unqualified area, the fourth grabbing device comprises more than two connecting plates, the connecting plates are provided with more than two second suction cups, and the material receiving box is provided with more than two placing assemblies arranged side by side along the width direction of the material receiving box.

4. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The second detection mechanism comprises detection racks arranged on both sides of the second conveying mechanism, the detection racks are provided with second three-dimensional modules, and the second three-dimensional modules are provided with more than two detection cameras at lower ends; the number of the detection cameras corresponds to the number of the fourth suction cups in the fourth grabbing mechanism, and each group of detection cameras detects one group of small battery pieces.

5. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The battery piece adjusting mechanism comprises an adjusting rack, the adjusting rack is provided with a position adjusting device, the position adjusting device comprises a first adjusting assembly, a second adjusting assembly and an angle adjusting assembly; the first adjusting assembly is arranged on the adjusting lifting device, the second adjusting assembly is arranged on the first adjusting assembly, and the angle adjusting assembly is arranged on the second adjusting assembly; the first adjusting assembly drives the second adjusting assembly to move in the X-axis direction, the second adjusting assembly drives the angle adjusting assembly to move in the Y-axis direction; the angle adjusting assembly is provided with a battery piece suction component for suction of the battery piece, and the angle adjusting assembly is used for adjusting the angle of the battery piece suction component in the plane of the battery piece; The adjusting lifting device comprises an adjusting lifting base plate, an adjusting lifting motor, an adjusting lifting gear and an adjusting lifting rack, the adjusting lifting motor is arranged on the adjusting rack, the adjusting rack is provided with an adjusting sliding block, the adjusting lifting base plate is arranged on the adjusting sliding block in a sliding mode through an adjusting sliding rail, the adjusting sliding block slides in the up-down direction of the adjusting sliding rail, the adjusting lifting motor is provided with the adjusting lifting gear on the driving shaft, the adjusting lifting base plate is provided with the adjusting lifting rack in mesh with the adjusting lifting gear, and the first adjusting assembly is arranged on the adjusting lifting base plate.

6. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The electrode conveying mechanism further comprises an electrode rack, an electrode conveying base, the electrode placing platform is arranged on the electrode rack, the electrode placing platform is arranged on the electrode rack, the electrode conveying base is arranged on the electrode rack at one end of the electrode placing platform, the electrode cutting assembly is arranged on the electrode conveying base through the cutting position adjusting assembly, the electrode grabbing assembly is arranged on the electrode rack above the electrode placing platform and moves along the direction of the two ends of the electrode placing platform, the cutting position adjusting assembly comprises a cutting position adjusting cylinder and a cutting position adjusting connecting block, the cutting position adjusting cylinder is arranged at the rear end of the electrode conveying base, the cutting position adjusting connecting block is arranged on the piston rod of the cutting position adjusting cylinder, and the electrode cutting assembly is arranged on the cutting position adjusting connecting block; A position adjusting limiting groove is arranged on the electrode conveying base, and the cutting position adjusting connecting block is located in the position adjusting limiting groove.

7. The automatic production line for soldering photovoltaic cells according to claim 1, characterized in that: The electrode transfer device comprises an electrode transfer support, an electrode transfer moving module, an electrode transfer lifting module and an electrode suction rod, the electrode transfer support is arranged on the rack, the electrode transfer moving module is arranged on the electrode transfer support, the electrode transfer lifting module is arranged on the electrode transfer moving module, and the electrode suction rod is arranged on the electrode transfer lifting module. The platform moving device comprises a platform moving linear motor, a platform moving guide rail and a platform moving sliding block, the platform moving linear motor is arranged on the rack, the welding platform is arranged on the driving end of the platform moving linear motor, the platform moving guide rails are arranged on the rack on the two sides of the platform moving linear motor, and the two ends of the welding platform are slidably arranged on the platform moving guide rails through the platform moving sliding blocks. The welding device comprises a welding support, a welding lifting module and a welding head, the welding support is arranged on the rack, the welding lifting module is arranged on the welding support, and the welding head is arranged on the welding lifting module.

8. A method for operating an automatic production line for soldering photovoltaic cells, implemented by means of an automatic production line for soldering photovoltaic cells according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1, the feeding conveying mechanism receives and conveys the material box loaded with large battery pieces, the first grabbing mechanism grabs the large battery pieces to the correction platform, after the grabbing is completed, the empty material box on the feeding conveying mechanism is alternately conveyed to the first conveying mechanism by the material box conveying mechanism for recycling; S2, the first detection mechanism detects the large battery pieces above the correction platform, first, the appearance of the battery pieces is detected, if qualified, the position deviation of the battery pieces is determined through the first detection mechanism and the correction platform, the correction platform adjusts the position of the large battery pieces according to the position deviation, then the adjusted large battery pieces are moved to a transfer platform below the cutting mechanism by the second grabbing mechanism, and then step S4 is performed; if not qualified, step S3 is performed; S3, the second grabbing mechanism places the unqualified large battery pieces to the waste area, and then step S2 is performed; S4, the second detection mechanism detects the large battery pieces on the transfer platform, if qualified, the large battery pieces are moved to the first conveying mechanism by the second grabbing mechanism, and then step S5 is performed; if not qualified, step S6 is performed. S4, the slicing mechanism slices a large battery piece on a transfer platform to form a group of small battery pieces, and when the slicing is performed, the small battery pieces formed by slicing on another transfer platform are moved to the second conveying mechanism by a third grabbing mechanism; the other transfer platform is transferred to a relative position in staggered synchronization with the transfer platform, so as to convey the small battery pieces sliced on the transfer platform to the other side of the second conveying mechanism; S5, the second conveying mechanism conveys the small battery pieces after slicing to below the second detection mechanism, the second detection mechanism performs appearance detection on the small battery pieces after slicing and determines the positions of unqualified small battery pieces and qualified small battery pieces, and then the fourth grabbing mechanism stacks the qualified small battery pieces to a qualified area and stacks the unqualified small battery pieces to an unqualified area; S6, the stacking small battery pieces are carried to a string welding device by a carrying mechanism to perform small battery piece string welding, and the long strip-shaped battery pieces formed after string welding are arranged side by side, and then the long strip-shaped battery pieces after arrangement are carried to a stack welding device by the carrying mechanism; S7, the long strip-shaped battery pieces are conveyed to below the battery piece adjusting mechanism by a battery piece conveying module; S8, a welding rod is grabbed by a welding rod grabbing assembly and placed on a welding rod placement platform, after the welding rod is pulled out to a length corresponding to the long strip-shaped battery piece by the welding rod grabbing assembly, the welding rod is cut by a welding rod cutting assembly; S9, the welding rod on the welding rod placement platform is grabbed by a welding rod transfer device and transferred to a welding platform; S10, the welding platform is driven by a platform moving device to move towards the battery piece adjusting mechanism, so that the welding platform is located below the welding device; S11, the long strip-shaped battery piece is grabbed by the battery piece adjusting mechanism, and the position and angle of the long strip-shaped battery piece are adjusted by a position adjusting device, so that the welding position of the long strip-shaped battery piece corresponds to the welding rod; S12, the welding position of the welding rod and the long strip-shaped battery piece is welded by a welding device, so that the long strip-shaped battery piece is completed stack welding, and in the process of welding, the long strip-shaped battery piece is synchronously grabbed by the battery piece adjusting mechanism; S13, the long strip-shaped battery piece is placed down by the battery piece adjusting mechanism, the current long strip-shaped battery piece is transported to the next process by the battery piece conveying module, and the next group of long strip-shaped battery pieces is synchronously conveyed to below the battery piece adjusting mechanism by the battery piece conveying module.

9. The method of claim 8, wherein the automatic production line for soldering photovoltaic cells is characterized in that: In step S5, S51-S53 are further included, S51, when the small battery pieces after slicing are detected by the second detection mechanism, the second detection mechanism is provided with two groups, the small battery pieces are arranged in a matrix on the second conveying mechanism, the small battery pieces arranged along the transverse direction of the second conveying mechanism are a group of battery pieces, each second detection mechanism corresponds to a group of small battery pieces, and the second detection mechanism moves on a group of small battery pieces and identifies the positions of the qualified small battery pieces and the unqualified battery pieces in the group of small battery pieces; S52, the fourth grabbing mechanism starts the corresponding fourth grabbing device to grab the unqualified battery pieces according to the positions of the unqualified small battery pieces in a group of small battery pieces, and moves to the unqualified area; S53 The fourth grabbing device starts the corresponding grabbing device to grab the qualified battery piece according to the position of the qualified small battery piece in the group of small battery pieces, and moves to the qualified area.

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