A method for adjusting the angle of a battery sheet

Abstract

The application provides a kind of battery piece angle adjusting stack welding method, specific steps include: (1) battery piece conveying module is conveyed to battery piece adjusting mechanism below battery piece;(2) electrode grabbing assembly grabs electrode and places electrode on electrode placement platform;(3) electrode transfer device grabs electrode on electrode placement platform and is transferred to welding platform;(4) platform moving device drives welding platform to move to the direction of battery piece adjusting mechanism, so that welding platform is located below welding device;(5) battery piece adjusting mechanism grabs battery piece and adjusts the position of battery piece by position adjusting device, so that the welding position of battery piece corresponds to electrode;(6) welding device welds the welding position of electrode and battery piece, so that battery piece completes stack welding;(7) battery piece adjusting mechanism puts down battery piece, and battery piece conveying module transports current battery piece to next processing equipment.

Description

Technical Field

[0001] This invention relates to the field of solar cell stacking, and more specifically to a stacking method capable of adjusting the angle of solar cells. Background Technology

[0002] With increasing environmental awareness, solar photovoltaic power generation has gradually become a hot topic worldwide. Photovoltaic shingling machines are core equipment in the manufacturing process of solar cells. A photovoltaic shingling machine is a machine that utilizes the inherent characteristics of photovoltaic cells to weld electrodes of different materials together with the cells using heat and pressure. Through the action of heat and pressure, the shingling machine welds the electrodes and cells together to form a solar cell module.

[0003] However, since stacking usually requires stacking multiple cells, the positions of the cells may become misaligned. If the cells are not adjusted, the yield of subsequent stacking will be reduced.

[0004] Chinese patent application No. 202323317624.X, published on August 2, 2024, discloses a battery string loading hand, loading mechanism, and stacking welding machine. The battery string loading hand includes a moving mechanism, a rotating mechanism, a fixed frame, and a movable frame. The rotating mechanism is mounted on the drive end of the moving mechanism; the fixed frame is horizontally mounted on the drive end of the rotating mechanism, and the movable frame is mounted on the second end of the fixed frame, allowing it to extend and retract relative to the fixed frame. The moving mechanism drives the fixed frame and the movable frame to translate and move up and down, and the rotating mechanism is configured to drive the fixed frame and the movable frame to rotate horizontally. At least two first suction cup groups are mounted on the fixed frame, one of which is mounted on the first end of the fixed frame for adsorbing battery cells located at the first end of the battery string. A second suction cup group is mounted on the movable frame at the end away from the fixed frame, for adsorbing battery cells located at the second end of the battery string. This patent significantly reduces the number of adjustments required to the first suction cup groups on the fixed frame, reducing adjustment workload and improving battery string loading efficiency.

[0005] However, this document only adjusts the angle of the suction cup. When the solar cells are transported to the stacking machine, their positions may not always be in the set positions. Therefore, adjusting only the angle of the solar cells cannot guarantee that each string of solar cells will be in the set position. Summary of the Invention

[0006] This invention provides a stacking welding method that can adjust the angle of the battery cells, enabling adjustment of the battery cells in multiple directions, thereby ensuring the stacking position of the battery cells and improving the stacking effect.

[0007] To achieve the above objectives, a stacking welding method capable of adjusting the angle of solar cells is provided, implemented using a stacking welding machine. The stacking welding machine includes a frame, with electrode conveying mechanisms at both ends of the frame, a solar cell adjusting mechanism at the center of the frame, and a solar cell conveying module on the frame below the solar cell adjusting mechanism. A welding mechanism is located on the frame between the solar cell conveying module and the electrode conveying mechanism. The solar cell adjusting mechanism includes an adjusting frame, with an adjusting lifting device and a position adjusting device on the adjusting frame. 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.

[0008] The steps include:

[0009] (1) The cell conveying module conveys the cells to the cell adjustment mechanism below.

[0010] (2) The electrode gripping assembly grips the electrode and places it on the electrode placement platform. After the electrode gripping assembly pulls the electrode out to the length corresponding to the battery cell, the electrode cutting assembly cuts the electrode.

[0011] (3) The electrode transfer device grabs the electrode on the electrode placement platform and transfers it to the welding platform.

[0012] (4) The platform moving device drives the welding platform to move in the direction of the battery cell adjustment mechanism, so that the welding platform is located below the welding device.

[0013] (5) The battery cell adjustment mechanism grabs the battery cell and adjusts the position and angle of the battery cell through the position adjustment device so that the welding part of the battery cell corresponds to the welding rod.

[0014] (6) The welding device welds the welding part of the welding rod and the battery cell, so that the battery cell is stacked. During the welding process, the battery cell adjustment mechanism simultaneously grabs the battery cell.

[0015] (7) The cell adjustment mechanism lowers the cell, and the cell conveying module transports the current cell to the next processing equipment. At the same time, the next set of cells is synchronously transported to the cell adjustment mechanism through the cell conveying module.

[0016] Furthermore, the position adjustment device includes a first adjustment component, a second adjustment component, and an angle adjustment component; the first adjustment component is disposed on the adjustment lifting device, the second adjustment component is disposed on the first adjustment component, and the angle adjustment component is disposed on the second adjustment component; the first adjustment component drives the second adjustment component to move in the X-axis direction, and the second adjustment component drives the angle adjustment component to move in the Y-axis direction; the angle adjustment component is provided with a battery cell adsorption component for adsorbing the battery cell, and the angle adjustment component is used to adjust the angle of the battery cell adsorption component in the plane where the battery cell is located.

[0017] The adjusting and lifting device includes an adjusting and lifting base plate, an adjusting and lifting motor, an adjusting and lifting gear, and an adjusting and lifting rack. The adjusting and lifting motor is mounted on an adjusting frame, and an adjusting slider is mounted on the adjusting frame. The adjusting and lifting base plate is slidably mounted on the adjusting slider via an adjusting slide rail, and the adjusting slider slides in the up and down direction of the adjusting slide rail. An adjusting and lifting gear is mounted on the drive shaft of the adjusting and lifting motor, and an adjusting and lifting rack that meshes with the adjusting and lifting gear is mounted on the adjusting and lifting base plate. A first adjusting component is mounted on the adjusting and lifting base plate.

[0018] The above settings, by setting a first adjustment component, a second adjustment component, and an angle adjustment component, enable the first adjustment component to drive the second adjustment component to move in the X-axis direction, and the second adjustment component to drive the angle adjustment component to move in the Y-axis direction. The angle adjustment component is used to adjust the angle of the battery cell adsorption component, thereby enabling the adsorption of the battery cell according to its current position and adjusting the position of the battery cell. This ensures that the battery cell is in the preset position each time it is stacked, thereby improving the yield of stacking and resulting in a better stacking effect.

[0019] Furthermore, the first adjustment component includes a first adjustment base, a first adjustment motor, a first adjustment rack, and a first adjustment gear. A first adjustment guide rail is provided on the adjustment lifting base plate, and the first adjustment guide rail is arranged along both ends of the adjustment lifting base plate. The first adjustment base is slidably disposed on the first adjustment guide rail via a first adjustment slider. A first adjustment motor is provided on the first adjustment base, and a first adjustment gear is provided on the drive shaft of the first adjustment motor. A first adjustment rack is also provided on the adjustment lifting base plate, and the first adjustment gear meshes with the first adjustment rack. A second adjustment component is provided on the first adjustment base.

[0020] The above configuration involves the first adjusting motor driving the first adjusting gear to rotate, which in turn moves the first adjusting rack, thereby driving the second adjusting component to adjust its position.

[0021] The second adjustment component includes a second adjustment base plate and a second adjustment linear motor. The second adjustment base plate is disposed on a first adjustment base, the second adjustment linear motor is disposed on the second adjustment base plate, a second adjustment connecting block is disposed on the drive shaft of the second adjustment linear motor, and an angle adjustment component is disposed on the second adjustment connecting block.

[0022] The above settings allow the position of the angle adjustment component to be adjusted by driving the second adjustment connecting block with the second adjustment linear motor.

[0023] The angle adjustment assembly includes an angle adjustment base plate, an angle adjustment motor, and an angle adjustment gear. The angle adjustment base plate is mounted on the second adjustment connecting block. An angle adjustment motor is located at one end of the angle adjustment base plate, and an angle adjustment gear is located on the drive shaft of the angle adjustment motor. The angle adjustment gear is connected to the battery cell adsorption component. An angle adjustment turntable is located at the other end of the angle adjustment base plate. The battery cell adsorption component is rotatably mounted on the angle adjustment turntable, and the angle adjustment gear drives the battery cell adsorption component to swing around the angle adjustment turntable as a fulcrum.

[0024] The above setup involves driving the angle adjustment gear to rotate via an angle adjustment motor, which in turn drives the battery cell adsorption component to swing around the angle adjustment turntable as a fulcrum.

[0025] Furthermore, the adsorption component includes an adsorption substrate and a suction cup. The suction cup is disposed below the adsorption substrate, and the angle adjustment turntable is located at the center of the adsorption substrate. An angle adjustment connecting seat is provided at one end of the angle adjustment turntable, and an angle adjustment rack is provided on the angle adjustment connecting seat. The angle adjustment rack meshes with the angle adjustment gear.

[0026] The above settings, through the suction cup configuration, not only ensure stable gripping of the battery cells but also prevent damage to their surface.

[0027] The angle adjusting rack has an arc-shaped surface on one side that extends from the center of the angle adjusting rack to both ends of the angle adjusting rack, and a locking tooth that meshes with the angle adjusting gear is provided on the arc-shaped surface.

[0028] The above settings, through the design of the curved surface, ensure that the angle adjustment rack moves with a certain curvature when the angle adjustment gear drives the angle adjustment rack, thereby ensuring that the angle of the suction cup can be adjusted, which facilitates the adjustment of the battery cell in various aspects.

[0029] Furthermore, the electrode conveying mechanism also includes an electrode frame and an electrode conveying base. The electrode placement platform is mounted on the electrode frame, and the electrode conveying base is mounted on the electrode frame at one end of the electrode placement platform. The electrode cutting assembly is mounted on the electrode conveying base via a cutting position adjustment assembly. The electrode gripping assembly is located on the electrode frame above the electrode placement platform and moves along both ends of the electrode placement platform. The cutting position adjustment assembly includes a cutting position adjustment cylinder and a cutting position adjustment connecting block. The cutting position adjustment cylinder is located at the rear end of the electrode conveying base, and the cutting position adjustment connecting block is mounted on the piston rod of the cutting position adjustment cylinder. The electrode cutting assembly is mounted on the cutting position adjustment connecting block.

[0030] The above settings ensure that the electrode cutting component will not obstruct the electrode gripping component by using a cylinder to adjust the cutting position to drive the electrode cutting component to extend and retract.

[0031] A position adjustment limiting groove is provided on the welding rod conveying base, and the cutting position adjustment connecting block is located in the position adjustment limiting groove.

[0032] The above settings, through the position adjustment limit groove, limit the extension and retraction distance of the welding rod cutting assembly, preventing excessive movement that could affect the feeding of the welding rod.

[0033] Furthermore, the electrode cutting assembly includes an electrode cutting base, an electrode cutting cylinder, an electrode cutting drive rod, and an electrode cutter. The electrode cutting base is mounted on a cutting position adjustment connecting block. An electrode cutting worktable is located at the lower end of the electrode cutting base, and an electrode cutting plate is located on the outer side of the electrode cutting worktable. The electrode is placed on the electrode cutting worktable and passes through the electrode cutting plate. An electrode cutting cylinder is located at the top of the electrode cutting base, and an electrode cutting connecting block is located on the piston rod of the electrode cutting cylinder. The center of the electrode cutting drive rod is hinged to the electrode cutting base, and one end of the electrode cutting drive rod is hinged to the electrode cutting connecting block. The electrode cutter is located at the other end of the electrode cutting drive rod, and the back of the electrode cutter is in contact with the electrode cutting plate.

[0034] With the above setup, when the electrode cutting cylinder retracts, it causes one end of the electrode cutting drive rod to swing upward, which in turn causes the other end of the electrode cutting drive rod to swing downward, thereby driving the electrode cutter to move downward to cut the electrode.

[0035] A cutting limit roller is provided on the welding rod cutting base above the welding rod cutting worktable. The welding rod is located between the cutting limit roller and the welding rod cutting worktable, and the cutting limit roller is in rolling connection with the welding rod.

[0036] The above settings, by setting a cutting limit roller, limit the movement of the welding rod and prevent it from moving randomly.

[0037] Furthermore, the electrode gripping assembly includes an electrode gripping cylinder, an electrode gripping connecting block, a first electrode gripping clamp, a second electrode gripping clamp, an electrode gripping base plate, and an electrode gripping slider. An electrode gripping guide rail is provided on the electrode frame on one side of the electrode placement platform. The electrode gripping base plate is slidably mounted on the electrode gripping guide rail via the electrode gripping slider. An electrode gripping cylinder is provided on the electrode gripping base plate. The electrode gripping connecting block is hinged to the piston rod of the electrode gripping cylinder. A second electrode gripping clamp is provided on the side wall of the electrode gripping base plate above the electrode placement platform. One end of the first electrode gripping clamp is hinged to the electrode gripping base plate, and the other end is hinged to the electrode gripping connecting block. The first and second electrode gripping clamps are correspondingly arranged. An electrode gripping drive module for driving the electrode gripping slider to move is also provided on the electrode frame.

[0038] The above configuration involves the electrode gripping cylinder driving the electrode gripping connecting block to extend and retract, causing the first electrode gripping clamp to swing up and down, thus creating an opening between the first and second electrode gripping clamps for gripping the electrode. This facilitates electrode gripping. When the electrode gripping cylinder extends and retracts, the first electrode gripping clamp swings around the hinge point with the electrode gripping substrate, thereby creating an opening between the first and second electrode gripping clamps.

[0039] Furthermore, a welding rod fixing assembly is provided on the side of the welding rod conveying base away from the welding rod placement platform. The welding rod fixing assembly includes a welding rod fixing cylinder, a welding rod fixing connecting block, and a welding rod fixing plate. The welding rod fixing cylinder is located at the top of the welding rod conveying base. A welding rod fixing connecting block is provided on the piston rod of the welding rod fixing cylinder. A welding rod fixing seat is provided at the lower end of the welding rod conveying base. The center of the welding rod fixing plate is hinged to the welding rod conveying base above the welding rod fixing seat. One end of the welding rod fixing plate is hinged to the welding rod fixing connecting block. A welding rod is provided between the other end of the welding rod fixing plate and the welding rod fixing seat.

[0040] The above configuration allows the electrode fixing cylinder to retract, causing one end of the electrode fixing plate to swing upwards, which in turn causes the other end of the electrode fixing plate to swing downwards and press and fix the electrode. This prevents the electrode from moving around when the electrode cutting assembly is extended and retracted by the adjusting cylinder at the cutting position.

[0041] Furthermore, the electrode transfer device includes an electrode transfer bracket, an electrode transfer moving module, an electrode transfer lifting module, and an electrode adsorption rod. The electrode transfer bracket is mounted on a frame, the electrode transfer moving module is mounted on the electrode transfer bracket, the electrode transfer lifting module is mounted on the electrode transfer moving module, the electrode adsorption rod is mounted on the electrode transfer lifting module, and a vacuum suction cup is mounted on the electrode adsorption rod. The vacuum suction cup adsorbs the electrode on the electrode placement platform.

[0042] The above setup uses a welding electrode transfer and lifting module to drive the welding electrode suction rod downwards, causing the vacuum suction cup to adsorb the welding electrode located on the welding electrode placement platform. Then, the welding electrode can be transferred to the welding platform by the welding electrode transfer and moving module. The structure is simple and effective.

[0043] The platform moving device includes a platform moving linear motor, a platform moving guide rail, and a platform moving slider. The platform moving linear motor is mounted on the frame, and a welding platform is provided on the drive end of the platform moving linear motor. Platform moving guide rails are provided on the frame on both sides of the platform moving linear motor, and the two ends of the welding platform are slidably mounted on the platform moving guide rails via platform moving sliders.

[0044] The above setup uses a linear motor to drive the welding platform, which in turn moves the welding rod to the position corresponding to the solar cell, thus facilitating welding.

[0045] The welding device comprises a welding bracket, a welding lifting module, and a welding head. The welding bracket is mounted on a frame, and the welding lifting module is mounted on the welding bracket. The welding head is mounted on the welding lifting module.

[0046] The above setup allows the welding head to move downwards via a welding lifting module, thus enabling the stacking and welding of battery cells.

[0047] Furthermore, the welding platform is provided with a welding groove for placing welding rods, and a vacuum nozzle for adsorbing welding rods is provided below the welding groove.

[0048] The above settings, through the configuration of the vacuum nozzle, enable the vacuum nozzle to adhere to the welding rod when the welding platform moves, thereby ensuring that the welding rod does not shift and thus ensuring the accuracy of welding.

[0049] The beneficial effects of this invention are as follows: The welding rod is conveyed to the welding rod placement platform by the welding rod conveying mechanism, which facilitates the welding rod transfer device to grab and place the welding rod on the welding platform. The platform moving device enables the welding rod to be conveyed to the position corresponding to the battery cell, thereby ensuring the accuracy of the welding position. At the same time, the battery cell adjustment mechanism grabs the battery cell and adjusts its position and angle, so that the welding part of the battery cell corresponds to the welding rod. During the welding process, the battery cell adjustment mechanism simultaneously grabs the battery cell, thereby ensuring that the battery cell will not shift in position due to factors of the welding device during the welding process. This further ensures that the stacked welding of the battery cells is not easily misaligned and improves the stacked welding quality of the battery cells. Attached Figure Description

[0050] Figure 1 This is a simplified schematic diagram of the stacking welding machine of the present invention.

[0051] Figure 2 This is a schematic diagram of the adjustment mechanism of the present invention.

[0052] Figure 3 This is a schematic diagram of the adjusting lifting device of the present invention.

[0053] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0054] Figure 5 This is a schematic diagram showing the connection between the angle adjusting rack and the angle adjusting gear of the present invention.

[0055] Figure 6 This is a schematic diagram of the adjustment mechanism of the present invention.

[0056] Figure 7 This is a schematic diagram of the structure of the present invention.

[0057] Figure 8 This is a schematic diagram of the back of the welding electrode feeding mechanism.

[0058] Figure 9 for Figure 7 Enlarged view of point B in the middle.

[0059] Figure 10 This is the front view of the welding electrode feeding mechanism.

[0060] Figure 11 This is a schematic diagram of the electrode transfer device of the present invention.

[0061] Figure 12 This is a schematic diagram of the platform mobility device of the present invention.

[0062] Figure 13This is a schematic diagram of the welding apparatus of the present invention.

[0063] Figure 14 for Figure 12 Enlarged view of point C in the middle.

[0064] Figure 15 This is a flowchart of the process of the present invention.

[0065] Figure label:

[0066] 01 - Frame; 02 - Electrode conveying mechanism; 03 - Cell adjustment mechanism; 04 - 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 adjustment component; 41 - First adjustment base; 42 - First adjustment motor; 43 - First adjustment rack; 44 - First adjustment guide rail; 45 - First adjustment slider; 5 - Second adjustment component; 51-Second adjustment base plate; 52-Second adjustment linear motor; 53-Second adjustment connecting block; 6-Angle adjustment assembly; 61-Angle adjustment base plate; 62-Angle adjustment motor; 63-Angle adjustment gear; 64-Angle adjustment turntable; 7-Battery cell adsorption component; 71-Adsorption base plate; 72-Suction cup; 73-Angle adjustment connecting seat; 74-Angle adjustment rack; 75-Curved surface; 76-Clamping tooth;

[0067] 1z - Electrode frame; 11z - Electrode placement platform; 21z - Electrode conveyor base; 22z - Limiting roller assembly; 3z - Electrode gripping assembly; 31z - Electrode gripping cylinder; 32z - Electrode gripping connecting block; 33z - First electrode gripping clamp; 34z - Second electrode gripping clamp; 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 limiting roller; 5z - Cutting position adjustment assembly; 51z - 52z - Cutting position adjusting cylinder; 53z - Cutting position adjusting connecting block; 6z - Position adjusting limiting groove; 61z - Welding electrode fixing assembly; 62z - Welding electrode fixing cylinder; 63z - Welding electrode fixing connecting block; 64z - Welding electrode fixing plate; 01z - Welding electrode; 1y - Welding platform; 11y - Welding tank; 12y - Vacuum nozzle; 2y - Welding electrode transfer device; 21y - Welding electrode transfer bracket; 22y - Welding electrode transfer moving module; 23y - Welding electrode transfer lifting module; 24y - Welding 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

[0068] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0069] like Figure 1 As shown, a method for lap-welding solar cells with adjustable angles is implemented using a lap-welding machine. The lap-welding machine includes a frame 01, electrode conveying mechanisms 02 at both ends of the frame 01, a solar cell adjusting mechanism 03 at the center of the frame 01, and a solar cell conveying module 04 on the frame 01 below the solar cell adjusting mechanism 03. A welding mechanism 05 is located on the frame between the solar cell conveying module 04 and the electrode conveying mechanisms 02. The solar cell conveying module 04 is used to convey solar cells to the area below the solar cell adjusting mechanism 03. In this embodiment, the solar cell conveying module is a device that moves via a motor-driven transmission belt.

[0070] like Figure 1-6As 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 battery cell adsorption component 7. In this embodiment, the X-axis direction and the Y-axis direction are as follows: Figure 2 The direction indicated by the middle arrow.

[0071] like Figure 3 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 battery cell.

[0072] like Figure 4As 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.

[0073] 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. The second adjustment linear motor 52 drives the second adjustment connecting block 53, thereby allowing the position of the angle adjustment component 6 to be adjusted.

[0074] like Figure 4 and Figure 5 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.

[0075] like Figure 4As 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 battery cell but also prevents damage to the surface of the battery cell.

[0076] like Figure 5 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 5 As shown in direction A1, the angle of the suction cup 72 can be adjusted, which facilitates the adjustment of the battery cell position in various aspects.

[0077] 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 battery cell adsorption component 7, thereby enabling the adsorption of the battery cell according to its current position and adjusting the position of the battery cell. This ensures that the battery cell is in the preset position each time it is stacked, thereby improving the yield of the stacking and resulting in a better stacking effect.

[0078] like Figure 7-10As 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.

[0079] like Figure 8 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.

[0080] 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.

[0081] like Figure 9 and Figure 10As 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.

[0082] like Figure 9 and Figure 10 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.

[0083] like Figure 8 - Figure 10As 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.

[0084] like Figure 9 and Figure 10 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.

[0085] like Figure 9 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.

[0086] 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.

[0087] like Figure 1 , Figure 11 - Figure 13 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.

[0088] like Figure 11As 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.

[0089] like Figure 12 and Figure 14 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 battery cell, thus facilitating welding.

[0090] 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.

[0091] like Figure 13As 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.

[0092] like Figure 15 As shown, a method for stacking solar cells that can adjust the angle of the cells includes the following steps:

[0093] (1) The cell conveying module 04 conveys the cells to the cell adjustment mechanism 03 below.

[0094] (2) The electrode gripping component 3z grips the electrode 01z and places the electrode 01z on the electrode placement platform 11z. After the electrode gripping component 3z pulls the electrode out to the length corresponding to the battery cell, the electrode cutting component 4z cuts the electrode.

[0095] (3) The electrode transfer device 2y grabs the electrode on the electrode placement platform and transfers it to the welding platform 1y.

[0096] (4) The platform moving device 3y drives the welding platform 1y to move in the direction of the battery cell adjustment mechanism 03, so that the welding platform 1y is located below the welding device 4y.

[0097] (5) The battery cell adjustment mechanism 03 grabs the battery cell and adjusts the position of the battery cell through the position adjustment device 3, so that the welding part of the battery cell corresponds to the welding rod.

[0098] (6) The welding device 4y welds the welding part of the welding rod 01z and the battery cell, so that the battery cell is stacked. During the welding process, the battery cell adjustment mechanism 03 simultaneously grabs the battery cell.

[0099] (7) The cell adjustment mechanism 03 lowers the cell, and the cell conveying module 04 transports the current cell to the next processing equipment. At the same time, the next set of cells is synchronously transported to the cell adjustment mechanism 03 through the cell conveying module 04.

[0100] The working principle of this invention is as follows: The welding rod 01z is conveyed to the welding rod placement platform 11z by the welding rod conveying mechanism 02, which facilitates the welding rod transfer device 2y to grab and place the welding rod on the welding platform 1y. The platform moving device 3y enables the welding rod to be conveyed to the position corresponding to the battery cell, thereby ensuring the accuracy of the welding position. At the same time, the battery cell adjusting mechanism 03 grabs and adjusts the position of the battery cell, thereby ensuring that the welding part of the battery cell corresponds to the welding rod. During the welding process, the battery cell adjusting mechanism 03 simultaneously grabs the battery cell, thereby ensuring that the position of the battery cell will not be shifted due to the welding device 4y or the battery cell itself during the welding process. This further ensures that the overlapping welding of the battery cells is not easily misaligned and improves the overlapping welding quality of the battery cells.

Claims

1. A method for slab welding of solar cells with adjustable angles, implemented using a slab welding machine; the slab welding machine includes a frame, electrode conveying mechanisms at both ends of the frame, a solar cell adjusting mechanism at the center of the frame, and a solar cell conveying module on the frame below the solar cell adjusting mechanism; a welding mechanism is provided on the frame between the solar cell conveying module and the electrode conveying mechanism; characterized in that: The battery cell adjustment mechanism includes an adjustment frame, on which an adjustment lifting device and a position adjustment device are provided. The welding mechanism includes a welding platform, a welding rod transfer device, a platform moving device, and a welding device. The welding rod conveying mechanism includes a welding rod frame, a welding rod conveying base, a welding rod placement platform, a welding rod gripping assembly, and a welding rod cutting assembly. The welding rod placement platform is mounted on the welding rod frame, and the welding rod conveying base is mounted on the welding rod frame at one end of the welding rod placement platform. The welding rod cutting assembly is mounted on the welding rod conveying base via a cutting position adjustment assembly. The welding rod gripping assembly is located on the welding rod frame above the welding rod placement platform and moves along both ends of the welding rod placement platform. The welding rod gripping assembly includes a welding rod gripping cylinder, a welding rod gripping connecting block, a welding rod gripping first clamping plate, and a welding rod gripping second clamping plate. The welding electrode assembly comprises two clamping plates, a welding electrode gripping base plate, and a welding electrode gripping slider. A welding electrode gripping guide rail is provided on the welding electrode frame on one side of the welding electrode placement platform. The welding electrode gripping base plate is slidably mounted on the welding electrode gripping guide rail via the welding electrode gripping slider. A welding electrode gripping cylinder is provided on the welding electrode gripping base plate. A welding electrode gripping connecting block is hinged to the piston rod of the welding electrode gripping cylinder. A second welding electrode gripping clamping plate is provided on the side wall of the welding electrode gripping base plate above the welding electrode placement platform. One end of the first welding electrode gripping clamping plate is hinged to the welding electrode gripping base plate, and the other end of the first welding electrode gripping clamping plate is hinged to the welding electrode gripping connecting block. The first and second welding electrode gripping clamping plates are correspondingly arranged. A welding electrode gripping drive module for driving the movement of the welding electrode gripping slider is also provided on the welding electrode frame. The stacking welding method includes the following steps: (1) The cell conveying module conveys the cells to the area below the cell adjusting mechanism; (2) The electrode gripping assembly grips the electrode and places it on the electrode placement platform; after the electrode gripping assembly pulls the electrode out to the length corresponding to the battery cell, the electrode cutting assembly cuts the electrode; (3) The electrode transfer device picks up the electrode from the electrode placement platform and transfers it to the welding platform; (4) The platform moving device drives the welding platform to move in the direction of the cell adjustment mechanism, so that the welding platform is located below the welding device; (5) The battery cell adjustment mechanism grabs the battery cell and adjusts the position and angle of the battery cell through the position adjustment device so that the welding part of the battery cell corresponds to the welding rod; (6) The welding device welds the welding part of the welding rod and the battery cell, so that the battery cell is stacked. During the welding process, the battery cell adjustment mechanism simultaneously grabs the battery cell. (7) The cell adjustment mechanism lowers the cell, and the cell conveying module transports the current cell to the next processing equipment. At the same time, the next set of cells is synchronously transported to the cell adjustment mechanism through the cell conveying module.

2. The stacking method for adjusting the angle of solar cells according to claim 1, characterized in that: The position adjustment device includes a first adjustment component, a second adjustment component, and an angle adjustment component; the first adjustment component is disposed on the adjustment lifting device, the second adjustment component is disposed on the first adjustment component, and the angle adjustment component is disposed on the second adjustment component; the first adjustment component drives the second adjustment component to move in the X-axis direction, and the second adjustment component drives the angle adjustment component to move in the Y-axis direction; the angle adjustment component is provided with a battery cell adsorption component for adsorbing the battery cell, and the angle adjustment component is used to adjust the angle of the battery cell adsorption component in the plane where the battery cell is located; The adjusting and lifting device includes an adjusting and lifting base plate, an adjusting and lifting motor, an adjusting and lifting gear, and an adjusting and lifting rack. The adjusting and lifting motor is mounted on an adjusting frame, and an adjusting slider is mounted on the adjusting frame. The adjusting and lifting base plate is slidably mounted on the adjusting slider via an adjusting slide rail, and the adjusting slider slides in the up and down direction of the adjusting slide rail. An adjusting and lifting gear is mounted on the drive shaft of the adjusting and lifting motor, and an adjusting and lifting rack that meshes with the adjusting and lifting gear is mounted on the adjusting and lifting base plate. A first adjusting component is mounted on the adjusting and lifting base plate.

3. The stacking method for adjusting the angle of solar cells according to claim 2, characterized in that: The first adjustment assembly includes a first adjustment base, a first adjustment motor, a first adjustment rack, and a first adjustment gear. A first adjustment guide rail is provided on the adjustment lifting base plate, and the first adjustment guide rail is arranged along both ends of the adjustment lifting base plate. The first adjustment base is slidably disposed on the first adjustment guide rail via a first adjustment slider. A first adjustment motor is provided on the first adjustment base, and a first adjustment gear is provided on the drive shaft of the first adjustment motor. A first adjustment rack is also provided on the adjustment lifting base plate, and the first adjustment gear meshes with the first adjustment rack. A second adjustment assembly is provided on the first adjustment base. The second adjustment component includes a second adjustment base plate and a second adjustment linear motor. The second adjustment base plate is disposed on a first adjustment base, the second adjustment linear motor is disposed on the second adjustment base plate, a second adjustment connecting block is disposed on the drive shaft of the second adjustment linear motor, and an angle adjustment component is disposed on the second adjustment connecting block. The angle adjustment assembly includes an angle adjustment base plate, an angle adjustment motor, and an angle adjustment gear. The angle adjustment base plate is mounted on the second adjustment connecting block. An angle adjustment motor is located at one end of the angle adjustment base plate, and an angle adjustment gear is located on the drive shaft of the angle adjustment motor. The angle adjustment gear is connected to the battery cell adsorption component. An angle adjustment turntable is located at the other end of the angle adjustment base plate. The battery cell adsorption component is rotatably mounted on the angle adjustment turntable, and the angle adjustment gear drives the battery cell adsorption component to swing around the angle adjustment turntable as a fulcrum.

4. The stacking method for adjusting the angle of solar cells according to claim 3, characterized in that: The battery cell adsorption component includes an adsorption substrate and a suction cup. The suction cup is disposed below the adsorption substrate, and the angle adjustment turntable is located at the center of the adsorption substrate. An angle adjustment connecting seat is provided at one end of the angle adjustment turntable, and an angle adjustment rack is provided on the angle adjustment connecting seat. The angle adjustment rack meshes with the angle adjustment gear. The angle adjusting rack has an arc-shaped surface on one side that extends from the center of the angle adjusting rack to both ends of the angle adjusting rack, and a locking tooth that meshes with the angle adjusting gear is provided on the arc-shaped surface.

5. The stacking method for adjusting the angle of solar cells according to claim 1, characterized in that: The cutting position adjustment assembly includes a cutting position adjustment cylinder and a cutting position adjustment connecting block. The cutting position adjustment cylinder is located at the rear end of the welding rod conveying base. The cutting position adjustment connecting block is provided on the piston rod of the cutting position adjustment cylinder, and the welding rod cutting assembly is provided on the cutting position adjustment connecting block. A position adjustment limiting groove is provided on the welding rod conveying base, and the cutting position adjustment connecting block is located in the position adjustment limiting groove.

6. The stacking method for adjusting the angle of solar cells according to claim 5, characterized in that: The electrode cutting assembly includes an electrode cutting base, an electrode cutting cylinder, an electrode cutting drive rod, and an electrode cutter. The electrode cutting base is mounted on a cutting position adjustment connecting block. An electrode cutting worktable is located at the lower end of the electrode cutting base, and an electrode cutting plate is located on the outer side of the electrode cutting worktable. The electrode is placed on the electrode cutting worktable and passes through the electrode cutting plate. An electrode cutting cylinder is located at the top of the electrode cutting base, and an electrode cutting connecting block is located on the piston rod of the electrode cutting cylinder. The center of the electrode cutting drive rod is hinged to the electrode cutting base, and one end of the electrode cutting drive rod is hinged to the electrode cutting connecting block. The electrode cutter is located at the other end of the electrode cutting drive rod, and the back of the electrode cutter is in contact with the electrode cutting plate. A cutting limit roller is provided on the welding rod cutting base above the welding rod cutting worktable. The welding rod is located between the cutting limit roller and the welding rod cutting worktable, and the cutting limit roller is in rolling connection with the welding rod.

7. The stacking method for adjusting the angle of solar cells according to claim 6, characterized in that: A welding electrode fixing assembly is provided on the side of the welding electrode conveying base away from the welding electrode placement platform. The welding electrode fixing assembly includes a welding electrode fixing cylinder, a welding electrode fixing connecting block, and a welding electrode fixing plate. The welding electrode fixing cylinder is located at the top of the welding electrode conveying base. A welding electrode fixing connecting block is provided on the piston rod of the welding electrode fixing cylinder. A welding electrode fixing seat is provided at the lower end of the welding electrode conveying base. The center of the welding electrode fixing plate is hinged to the welding electrode conveying base above the welding electrode fixing seat. One end of the welding electrode fixing plate is hinged to the welding electrode fixing connecting block. A welding electrode is provided between the other end of the welding electrode fixing plate and the welding electrode fixing seat.

8. The stacking method for adjusting the angle of solar cells according to claim 1, characterized in that: The electrode transfer device includes an electrode transfer bracket, an electrode transfer moving module, an electrode transfer lifting module, and an electrode adsorption rod. The electrode transfer bracket is mounted on a frame, the electrode transfer moving module is mounted on the electrode transfer bracket, the electrode transfer lifting module is mounted on the electrode transfer moving module, the electrode adsorption rod is mounted on the electrode transfer lifting module, and a vacuum suction cup is mounted on the electrode adsorption rod. The vacuum suction cup adsorbs the electrode on the electrode placement platform. The platform moving device includes a platform moving linear motor, a platform moving guide rail, and a platform moving slider. The platform moving linear motor is mounted on the frame, and a welding platform is mounted on the drive end of the platform moving linear motor. Platform moving guide rails are mounted on the frame on both sides of the platform moving linear motor, and the two ends of the welding platform are slidably mounted on the platform moving guide rails via platform moving sliders. The welding device includes a welding bracket, a welding lifting module, and a welding head. The welding bracket is mounted on a frame, and the welding lifting module is mounted on the welding bracket. The welding head is mounted on the welding lifting module.

9. A method for stacking solar cells capable of adjusting the angle according to claim 8, characterized in that: The welding platform is equipped with a welding groove for placing welding rods, and a vacuum nozzle for adsorbing welding rods is located below the welding groove.

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