A current collector plate welding mechanism

Abstract

This utility model provides a collector plate welding mechanism, including a collector plate feeding section and a collector plate welding section arranged adjacent to each other. The collector plate feeding section includes a first feeding module, a distributing module, a secondary positioning module, and a second feeding module arranged sequentially, and also includes a first gripping module, a second gripping module, a third gripping module, a first gantry adjustment module, and a second gantry adjustment module. The first feeding module includes several clips, and several collector plates are stacked longitudinally on the clips. The first gripping module is used to transfer the clips of the first feeding membrane block to the distributing module. The second gripping module is used to transfer the collector plates on the clips at the distributing module to the secondary positioning module for secondary positioning of the collector plates. The third gripping module is used to transfer the collector plates located at the secondary positioning module to the second feeding module. The second feeding module provides collector plates to the collector plate welding section. This utility model can achieve precise distributing and feeding of the collector plates.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a current collector welding mechanism. Background Technology

[0002] The welding of the positive and negative current collectors of cylindrical battery cells is a critical process in battery manufacturing. The welding result directly affects the battery's conductivity and safety performance. Therefore, the welding precision must be ensured when welding the current collectors of cylindrical battery cells. In practice, current collectors are usually stacked. Due to their small thickness and volume, multiple current collectors are prone to sticking together due to electrostatic adsorption during the material feeding process. Sticking current collectors are often separated by external force interference, which can lead to force displacement of the current collector being fed, making it difficult to guarantee feeding accuracy. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a welding mechanism for the collector plate, which can realize the precise material distribution and feeding of the collector plate, and is conducive to improving the welding accuracy.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A current collector welding mechanism includes a current collector feeding section and a current collector welding section arranged adjacent to each other, with the battery cell body located in the current collector welding section. The current collector feeding section includes a first feeding module, a distributing module, a secondary positioning module, and a second feeding module arranged sequentially, and further includes a first gripping module, a second gripping module, a third gripping module, a first gantry adjustment module, and a second gantry adjustment module. The first gripping module and the second gripping module are located in the first gantry adjustment module, and the third gripping module is located in the second gantry adjustment module. The first feeding module includes a plurality of clips, and a plurality of current collectors are stacked longitudinally on the clips. The first gripping module is used to transfer the clips of the first feeding membrane block to the distributing module. The second gripping module is used to transfer the current collectors on the clips at the distributing module to the secondary positioning module for secondary positioning of the current collectors. The third gripping module is used to transfer the current collectors located at the secondary positioning module to the second feeding module. The second feeding module is used to provide current collectors to the current collector welding section.

[0006] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0007] This invention uses a material distribution module to prevent multiple collector plates from sticking together, ensuring material picking accuracy. After picking up the material, the collector plate is repositioned by a secondary positioning module, and then accurately transferred to the second material supply module by a third gripping module, thereby ensuring the material supply accuracy of the collector plate and helping to ensure welding accuracy. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 A top view of the welding mechanism for the manifold provided in an embodiment of this utility model;

[0010] Figure 2 A three-dimensional structural diagram of the feed section (with the second feed module removed) provided for an embodiment of this utility model;

[0011] Figure 3 A top view of the feeding section of the collector plate provided in an embodiment of this utility model;

[0012] Figure 4 A three-dimensional structural diagram of the roller assembly after assembling the magazine, provided for an embodiment of this utility model;

[0013] Figure 5 A schematic diagram of the assembly structure of the first gantry adjustment module, the first gripping module, and the second gripping module provided for an embodiment of this utility model;

[0014] Figure 6 A three-dimensional structural diagram of the first grasping module provided in an embodiment of this utility model;

[0015] Figure 7 This is a first three-dimensional structural diagram of the second grasping module provided in an embodiment of the present utility model;

[0016] Figure 8 This is a schematic diagram of the second three-dimensional structure of the second grasping module provided in an embodiment of the present utility model;

[0017] Figure 9 A first three-dimensional structural schematic diagram of the material distribution module provided in an embodiment of this utility model;

[0018] Figure 10 This is a second three-dimensional structural diagram of the material distribution module provided in an embodiment of the present utility model;

[0019] Figure 11 An exploded view of the material distribution module provided in this embodiment of the utility model;

[0020] Figure 12 A cross-sectional view of the magazine provided in this embodiment of the utility model;

[0021] Figure 13 for Figure 11 A partially enlarged schematic diagram of the structure at point A;

[0022] Figure 14 A three-dimensional structural diagram of the secondary positioning module provided in an embodiment of this utility model;

[0023] Figure 15 An exploded view of the secondary positioning module provided in an embodiment of this utility model;

[0024] Figure 16 A schematic diagram of the assembly structure of the second gantry adjustment module and the third gripping module provided in this embodiment of the utility model;

[0025] Figure 17 A three-dimensional structural schematic diagram of the manifold welding part provided in an embodiment of this utility model;

[0026] Figure 18 for Figure 17 The first simplified diagram;

[0027] Figure 19 for Figure 17 The second simplified diagram;

[0028] Figure 20 An exploded view of the battery cell clamp provided in this embodiment of the utility model;

[0029] Figure 21 This is a top view of the assembled mounting base plate and moving clamp plate provided in an embodiment of the present invention.

[0030] Icons: 1. First magnetic drive line; 11. First mover; 12. Cell clamp; 121. Mounting base plate; 1211. Baffle; 1212. Sliding shaft; 1213. First reset component; 122. Mover clamp plate; 123. Claw fixing seat; 1231. Second roller; 1232. Second reset component; 124. Claw body; 125. Cell base plate; 1251. Support groove; 126. Cam groove plate; 1261. Second drive inclined groove; 2. Positive electrode current collector; 21. Positioning hole; 3. Cell body; 41. Current collector loading part; 410. First gantry adjustment module; 4101. First main frame; 4102. First gantry frame; 411. First feeding module; 4111. Roller assembly; 4112. Pallet; 4113. Fixing strip; 4114. Magazine clip; 41141. Magazine cavity; 41142. Through hole; 412. Material distribution module; 4121. First dispensing horizontal plate; 41211. Lifting hole; 4122. Reference limit block; 41221. V-groove; 4123. Floating clamping block assembly; 41231. Adjusting seat plate; 41232. Fixed seat plate; 41233. Pressure block; 41234. First limit plate; 41235. First buffer spring; 4124. Material distribution assembly; 41241. Dispensing brush; 412411. Pad plate; 41242. Second dispensing horizontal plate; 41243. Transition sleeve; 41244. Guide rail frame; 41245. Dispensing lifting frame; 41246. Dispensing support plate; 41247. Frame support; 41248, First guide shaft; 41249, Second buffer spring; 4125, Lifting rod; 41251, Linear slide module; 413, Secondary positioning module; 4131, Positioning clamp plate; 41311, V-shaped positioning surface; 41312, Longitudinal reference surface; 4132, Positioning push block; 41321, Elastic clamping strip; 4133, Secondary positioning bracket; 4134, Sliding push plate; 41341, Second limiting plate; 41342, Third buffer spring; 4135, Transplanting frame; 414, First gripping module; 4141, First longitudinal support plate; 4142, First main horizontal plate; 4143, First main longitudinal plate; 4144, Variable pitch connecting plate; 41441, First roller; 4145, First... 4146. Gripper; 41461. First drive spur; 415. Second gripping module; 4151. Second longitudinal support plate; 4152. Second main horizontal plate; 4153. Extension seat; 4154. First suction cup; 4155. Series plate; 4156. Vibrator; 4157. Buffer pad; 416. Third gripping module; 417. Frame; 418. Second gantry adjustment module; 4181. Second main frame; 4182. Second gantry frame; 419. Second feeding module; 4191. Second magnetic drive line; 4192. Second mover; 4193. Positioning plate; 4194. First positioning pin; 42. Collector plate welding part; 421. Galvanometer module; 4211. Laser beam; 422. Rotary table module;4221 Motor mounting base; 4222 Rotary disk; 42221 Welding copper nozzle; 42222 Second positioning pin; 42223 Cell clamping plate; 4223 DD motor; 423 Feeding module; 4231 Welding base; 4232 PPU handling robot; 424 Drive push plate; 4241 Cell push block; 4242 Clamp push block; X, First direction; Y, Second direction. Detailed Implementation

[0031] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] Please refer to Figures 1 to 21A collector plate welding mechanism includes a collector plate feeding section 41 and a collector plate welding section 42 arranged adjacent to each other. A first magnetic drive line 1 for conveying the battery cell body 3 is provided at the collector plate welding section 42. The first magnetic drive line 1 includes a plurality of first movers 11, and a battery cell clamp 12 is mounted on the first movers 11 for assembling the battery cell body 3. The collector plate feeding section 41 includes a first feeding module 411, a distributing module 412, a secondary positioning module 413 and a second feeding module 419 arranged in sequence, and also includes a first gripping module 414, a second gripping module 415 and a third gripping module 416, wherein: The first feeding module 411 includes several clips 4114, and several collector plates are stacked longitudinally on the clips 4114. The first gripping module 414 is used to transfer the clips 4114 of the first feeding film block to the distributing module 412. The second gripping module 415 is used to transfer the collector plates on the clips 4114 at the distributing module 412 to the secondary positioning module 413 for secondary positioning of the collector plates. The third gripping module 416 is used to transfer the collector plates at the secondary positioning module 413 to the second feeding module 419. The second feeding module 419 is used to provide collector plates to the welding part 42 of the collector plates. Here, the distributing module 412 is used to avoid the adhesion of multiple collector plates and ensure the material picking accuracy. After picking up the material, the collector plates are repositioned by the secondary positioning module 413 and then accurately transferred to the second feeding module 419 by the third gripping module 416, thereby ensuring the material feeding accuracy of the collector plates and helping to ensure the welding accuracy. This embodiment uses the welding of the positive current collector 2 and the cell body 3 as an example for explanation. The welding of the negative current collector can be described with reference to this welding mechanism.

[0035] like Figure 20 and 21 As shown, the battery cell clamp 12 includes a mounting base plate 121, on which a moving clamp plate 122 is slidably mounted. The sliding direction of the moving clamp plate 122 relative to the mounting base plate 121 is parallel to the axial direction of the battery cell body 3 on the battery cell clamp 12. Two gripper fixing seats 123 are provided on the upper side of the moving clamp plate 122. The two gripper fixing seats 123 are arranged opposite to each other and are slidably connected to the moving clamp plate 122 through a slide rail slider assembly. The two gripper fixing seats 123 can move closer or further apart. The movement direction of the gripper fixing seats 123 is perpendicular to the sliding direction of the moving clamp plate 122 relative to the mounting base plate 121. A claw body 124 is mounted on the gripper fixing seat 123. In use, the battery cell body 3 is positioned above the moving clamp plate 122 and locked by two claws 124. The moving clamp plate 122 can slide relative to the mounting base plate 121, thereby changing the spatial position of the battery cell in the axial direction of the battery cell body 3 by the movement of the moving clamp plate 122 while the locking state of the claws 124 on the battery cell body 3 remains unchanged. This facilitates the welding of the current collector plate on the first magnetic drive line 1 in conjunction with the current collector plate welding part 42.

[0036] Furthermore, two baffles 1211 are arranged on the upper side of the mounting base plate 121, and the moving clamp plate 122 is located between the two baffles 1211. A first reset member 1213 is provided between the moving clamp plate 122 and one of the baffles 1211. The first reset member 1213 acts on the moving clamp plate 122 to put the cell clamp 12 in a transport state. Optionally, in some embodiments, the moving clamp plate 122 is slidably connected to the mounting base plate 121 via a slide rail slider assembly. In this embodiment, in order to reduce the longitudinal dimension of the cell clamp 12, a sliding shaft 1212 is provided between the two baffles 1211. The sliding shaft 1212 passes through the moving clamp plate 122, and the moving clamp plate 122 is slidably connected to the sliding shaft 1212. Optionally, the first reset member 1213 is a spring. During use, specifically when welding the current collector plate to the cell body 3, an external force drives the mover clamp plate 122 to slide relative to the mounting base plate 121, causing the cell body 3 to adhere to the current collector plate. At this time, the first reset member 1213 is compressed (the first reset member 1213 is installed between the mover clamp plate 122 and the baffle 1211 located near the current collector plate). After welding is completed, the external force acting on the mover clamp plate 122 is removed, and the first reset member 1213 acts on the mover clamp plate 122 to reset it, thereby restoring the cell clamp 12 to its transport state, allowing it to continue moving to the next station following the first mover 11. In another embodiment, the first reset member 1213 can also be a cylinder or electric cylinder mounted on the baffle 1211 to drive the mover clamp plate 122, enabling the cell clamp 12 to switch between welding and transport states.

[0037] like Figure 20 As shown, a cell holder plate 125 is provided on the mover clamp plate 122, and a support groove 1251 for accommodating the cell body 3 is provided on the cell holder plate 125. Preferably, there are two cell holder plates 125, and the gripper fixing seat 123 is located between the two cell holder plates 125. The support groove 1251 is an arc groove to accommodate cylindrical cells.

[0038] like Figure 20As shown, a cam groove plate 126 is slidably mounted on the moving clamp plate 122. The movement direction of the cam groove plate 126 is perpendicular to the movement direction of the gripper fixing seat 123. A second roller 1231 is arranged on the gripper fixing seat 123. A second drive inclined groove 1261 adapted to the second roller 1231 is opened on the cam groove plate 126. The second roller 1231 is mounted in the second drive inclined groove 1261. The cam groove plate 126 moves relative to the moving clamp plate 122 to drive the gripper fixing seat 123 to move so that the cell clamp 12 switches between the locked state and the unlocked state. In this embodiment, the cam groove plate 126 is slidably connected to the moving clamp plate 122 through the slide rail slider assembly. By driving the cam groove plate 126, the second drive inclined groove 1261 acts on the clamp fixing seat 123 through the second roller 1231 to move. That is, the battery cell clamp 12 can be switched between the locked state and the unlocked state by the external force acting on the cam groove plate 126.

[0039] In some embodiments, a second reset member 1232 is disposed between the cell holder plate 125 and the cam groove plate 126. The second reset member 1232 acts on the cam groove plate 126 to make the cell clamp 12 tend to maintain a locked state. Specifically, as Figure 20 As shown, optionally, the second reset member 1232 is a spring.

[0040] In use, the unlocking lever (not shown in the figure) moves towards the cell clamp 12, driving the cam groove plate 126 to compress the second reset member 1232, thus placing the cell clamp 12 in the unlocked state. After the operation is completed, the unlocking lever resets, and the second reset member 1232 acts on the cam groove plate 126 to reset it, switching the cell clamp 12 to the locked state, achieving self-locking of the cell clamp 12. It should be noted that the unlocking lever is driven by a cylinder to move closer to or further away from the cam groove plate 126.

[0041] Of course, in another embodiment, the unlocking lever mentioned above may not be provided. In this case, a cylinder or electric cylinder may be configured on the mounting base plate 121 or the cell holder plate 125 to drive the cam groove plate 126 to move, which can also realize the switching between the locked state and the unlocked state of the cell clamp 12.

[0042] like Figure 4As shown, the first feeding module 411 includes a tray 4112 and fixing bars 4113. A plurality of fixing bars 4113 are spaced apart along a first direction X, and the fixing bars 4113 extend along a second direction Y. A plurality of clips 4114 are spaced apart along the extending direction of the fixing bars 4113. The first direction X and the second direction Y are perpendicular, and both the first direction X and the second direction Y are parallel to the horizontal plane. In this embodiment, the first feeding module 411 also includes a roller conveyor assembly 4111 for transporting the tray 4112 along the first direction X. The fixing bars 4113 have slots, and the clips 4114 are embedded in the slots, and the clips 4114 can disengage longitudinally upward from the fixing bars 4113.

[0043] like Figure 5 and Figure 6 As shown, the first gripping module 414 includes a first longitudinal support plate 4141 and a pitch-changing assembly. The pitch-changing assembly is longitudinally adjustablely mounted on the first longitudinal support plate 4141 via a linear module. The first longitudinal support plate 4141 is located above the first feeding module 411 and the distributing module 412. The first longitudinal support plate 4141 can move along the first direction X and the second direction Y. The pitch-changing assembly includes a first main horizontal plate 4142 and a first main longitudinal plate 4143 connected to each other. The first main horizontal plate 4142 is longitudinally adjustablely mounted on the first longitudinal support plate 4141 via a linear module. The first main longitudinal plate 4143 is located below the first main horizontal plate 4142. A plurality of pitch-changing connecting plates 4144 are spaced apart along the second direction Y on the first main longitudinal plate 4143. The pitch-changing connecting plates 4144 are equipped with first grippers 4145 for holding the magazine 4114. The pitch-changing connecting plates 4144 are movably mounted on the first main longitudinal plate 4143 along the second direction Y. In this embodiment, a finger cylinder is mounted on the variable-pitch connecting plate 4144, and the first gripper 4145 is driven by the finger cylinder to grip the magazine 4114. This configuration can increase the density of the magazines 4114 on the fixing bar 4113, facilitate material feeding, and quickly adjust the distance between two adjacent magazines 4114 when transferring the magazines 4114 to the dispensing module 412, so as to smoothly assemble the magazines 4114 into the dispensing module 412.

[0044] like Figure 6As shown, the pitch-changing assembly also includes a drive plate 4146 that is longitudinally adjustable and mounted on the first main longitudinal plate 4143. A pitch-changing connecting plate 4144 is slidably connected to the first main longitudinal plate 4143 via a slide rail slider assembly. Specifically, the pitch-changing connecting plate 4144 can slide relative to the first main longitudinal plate 4143 along the second direction Y. The pitch-changing connecting plate 4144 is located between the first main longitudinal plate 4143 and the drive plate 4146. A first roller 41441 is disposed on the pitch-changing connecting plate 4144, and a first drive wheel adapted to the first roller 41441 is disposed on the drive plate 4146. A first drive sloping groove 41461 is installed within a first roller 41441. When the drive plate 4146 moves longitudinally, the first drive sloping groove 41461 acts on the first roller 41441 to cause the variable pitch connecting plate 4144 to move along the second direction Y. Several first drive sloping grooves 41461 correspond one-to-one with several variable pitch connecting plates 4144. In the second direction Y, the inclination of the first drive sloping grooves 41461 gradually decreases from both ends towards the middle, and the inclination directions of the first drive sloping grooves 41461 on both sides of the middle are opposite. In this embodiment, the drive plate 4146 is slidably connected to the first main longitudinal plate 4143 via a slide rail slider assembly. The drive plate 4146 is driven by a cylinder mounted on the first main transverse plate 4142 to slide longitudinally relative to the first main longitudinal plate 4143. Optionally, there are eight first drive spurs 41461, corresponding to eight variable-pitch connecting plates 4144, meaning the first gripping module 414 can transfer eight magazines 4114 at a time. Figure 6 As shown, the first driving spur 41461 is divided into two groups, left and right, with four spurs in each group. The two groups of first driving spurs 41461 are symmetrically arranged. The inclination of the first driving spur 41461 represents the driving distance of the variable pitch connecting plate 4144. That is, when the driving plate 4146 moves the same distance along the longitudinal direction, the greater the inclination of the first driving spur 41461, the greater the distance that the variable pitch connecting plate 4144 is driven to move along the second direction Y. In the second direction Y, the inclination of the first driving spur 41461 gradually decreases from both ends to the middle. That is, in the second direction Y, the variable pitch connecting plate 4144 near the middle moves less than the variable pitch connecting plates 4144 on both sides, thereby enabling the eight variable pitch connecting plates 4144 to be evenly distributed, which facilitates the corresponding assembly of the magazine 4114 onto the material distribution module 412.

[0045] like Figure 7 and Figure 8As shown, the second gripping module 415 includes a second longitudinal support plate 4151 and a second main horizontal plate 4152. The second main horizontal plate 4152 is longitudinally adjustable and mounted on the second longitudinal support plate 4151 via a linear module. The second main horizontal plate 4152 is provided with several extension seats 4153, and a first suction cup 4154 is disposed on each extension seat 4153. The first suction cup 4154 is used to grip the collecting tray. The second gripping module 415 also includes a vibrator 4156, which is connected to the extension seats 4153. Optionally, the vibrator 4156 is a pneumatic vibrator 4156, used to generate vibration during the gripping of the collecting tray by the first suction cup 4154, to prevent adjacent collecting trays from sticking together and affecting material handling.

[0046] like Figure 8 As shown, in order to reduce costs, at least two extension seats 4153 are connected by a series plate 4155, and the vibrator 4156 is mounted on the series plate 4155.

[0047] like Figure 7 As shown, the second main horizontal plate 4152 and the extension seat 4153 are connected by a buffer pad 4157. Optionally, the buffer pad 4157 is an elastic rubber or silicone support that can absorb the vibration energy of the extension seat 4153 to prevent it from being transmitted in large quantities to the second main horizontal plate 4152 and affecting the normal operation of the second gripping module 415.

[0048] like Figure 2 and Figure 5 As shown, the feeder section 41 also includes a first gantry adjustment module 410, and a first gripping module 414 and a second gripping module 415 are both mounted on the first gantry adjustment module 410. Specifically, the first gantry adjustment module 410 includes a first main frame 4101 and a first gantry frame 4102. The first gantry frame 4102 is mounted on the top of the first main frame 4101 via a linear module. This linear module drives the first gantry frame 4102 to move relative to the first main frame 4101 along the second direction Y. The first gripping module 414 and the second gripping module 415 are both mounted on the first gantry frame 4102 via a linear module and are driven by it to move relative to the first gantry frame 4102 along the first direction X. Specifically, the first longitudinal support plate 4141 and the second longitudinal support plate 4151 are both mounted on the first gantry frame 4102 via a linear module.

[0049] In another embodiment, the first longitudinal support plate 4141 and the second longitudinal support plate 4151 can also be slidably connected to the first gantry frame 4102 via a slide rail slider assembly, and driven by a cylinder or electric cylinder or other driving component disposed on the first gantry frame 4102. The first gantry adjustment module 410 can realize the position adjustment of the first gripping module 414 and the second gripping module 415 in the first direction X and the second direction Y.

[0050] like Figures 9 to 11 As shown, the material distribution module 412 includes a first dispensing horizontal plate 4121, a reference limiting block 4122, a floating clamping block assembly 4123, and a material distribution assembly 4124. The first dispensing horizontal plate 4121 has a through-hole 41211. The reference limiting block 4122 and the floating clamping block assembly 4123 are both mounted on the upper side of the first dispensing horizontal plate 4121. The magazine 4114 of the material distribution module 412 is mounted on the reference limiting block 4122 and the floating clamping block assembly 4124. Between points 2 and 3, a lifting rod 4125 is embedded in the lifting hole 41211. The lifting rod 4125 can move longitudinally to extend into the magazine 4114 and drive the collecting plate in the magazine 4114 to move longitudinally toward the distributing assembly 4124. The distributing assembly 4124 includes two brushes 41241 disposed on the top of the magazine 4114. The two brushes 41241 are disposed opposite each other, and a distributing channel is formed between the two brushes 41241. The width of the distributing channel is smaller than the diameter of the collecting plate. In this embodiment, the lifting rod 4125 is driven to move longitudinally by the linear slide module 41251 disposed on the first distributing horizontal plate 4121. In use, the magazine 4114 is transferred to the first distributing horizontal plate 4121 by the first gripping module 414 and clamped and limited by the reference limiting block 4122 and the floating clamping block assembly 4123. It should be noted that there are several lifting holes 41211, and they are spaced apart along the second direction Y on the first sub-assembly horizontal plate 4121, with one magazine 4114 corresponding to one lifting hole 41211. In this embodiment, as shown... Figure 12 As shown, the magazine 4114 contains a cartridge cavity 41141, and a through hole 41142 is provided through the bottom of the cartridge cavity 41141. The cartridge cavity 41141 is used to stack and arrange the collecting plate. The diameter of the through hole 41142 is smaller than the diameter of the cartridge cavity 41141 and also smaller than the diameter of the collecting plate. Therefore, the collecting plate will not leak out from the through hole 41142 during transportation. In use, when the magazine 4114 is assembled on the first sub-assembly horizontal plate 4121, the through hole 41142 corresponds to and connects to the lifting hole 41211. The lifting rod 4125 can move longitudinally to extend into or out of the cartridge cavity 41141 through the through hole 41142. More specifically, when feeding is required, the lifting rod 4125 lifts the stacked collection plates longitudinally upwards. The uppermost collection plate reaches the material distribution component 4124, and the first suction cup 4154 of the second gripping module 415 grips the uppermost collection plate. Under the combined action of the vibrator 4156 and the brush 41241, the uppermost collection plate and its adjacent collection plates can be smoothly separated.

[0051] Furthermore, the reference limiting block 4122 has a V-groove 41221 for limiting the magazine 4114 on one side facing the floating clamping block assembly 4123. The V-groove 41221 here is used to limit the magazine 4114.

[0052] like Figure 9, Figure 11 and Figure 13 As shown, the floating clamping block assembly 4123 includes an adjusting seat plate 41231 adjustablely disposed on the upper side of the first dispensing horizontal plate 4121. A fixed seat plate 41232 is disposed on the adjusting seat plate 41231, and a pressure block 41233 is slidably mounted on the fixed seat plate 41232. A first limiting plate 41234 is disposed at the end of the fixed seat plate 41232 away from the reference limiting block 4122. The pressure block 41233 is located between the first limiting plate 41234 and the reference limiting block 4122. A first buffer spring 41235 is disposed between the pressure block 41233 and the first limiting plate 41234. In this embodiment, the adjusting seat plate 41231 is slidably mounted on the first dispensing horizontal plate 4121 via a slide rail slider assembly, and is driven by a cylinder mounted on the first dispensing horizontal plate 4121 to move closer to or away from the reference limiting block 4122. For ease of operation, in this embodiment, the adjusting seat plate 41231 of multiple floating clamping block assemblies 4123 can be integrated into one unit, which helps reduce costs. When the magazine 4114 needs to be clamped, the cylinder drives the adjusting seat plate 41231 to move toward the reference limit block 4122. When the clamping block 41233 abuts against the magazine 4114, the first buffer spring 41235 is compressed and absorbs energy, realizing flexible contact between the clamping block 41233 and the magazine 4114, pressing the magazine 4114 while avoiding rigid contact between the two, thus preventing damage to the equipment.

[0053] In this embodiment, the material distribution assembly 4124 further includes a second dispensing horizontal plate 41242, which is located above the first dispensing horizontal plate 4121. The magazine 4114 mounted on the material distribution module 412 is located between the first dispensing horizontal plate 4121 and the second dispensing horizontal plate 41242. A transition sleeve 41243 corresponding to the magazine 4114 is mounted on the second dispensing horizontal plate 41242. The transition sleeve 41243 penetrates the second dispensing horizontal plate 41242, and the brush 41241 extends at least partially to the outlet end of the transition sleeve 41243. In use, the transition sleeve 41243 abuts longitudinally against the outlet of the magazine 4114 and communicates with the magazine cavity 41141 of the magazine 4114. The collector plate inside the magazine cavity 41141 enters the transition sleeve 41243 under the drive of the lifting rod 4125. The first suction cup 4154 passes through the gap between the two brushes 41241 and extends into the sleeve to grab the collector plate. During the process of grabbing the uppermost collector plate and detaching it from the transition sleeve 41243, the collector plates adjacent to this collector plate are ensured to separate and cannot detach from the transition sleeve 41243 under the action of the brushes 41241.

[0054] Furthermore, such as Figure 9As shown, a guide rail frame 41244 is arranged on the upper side of the first sub-assembly horizontal plate 4121. A sub-assembly lifting frame 41245 is adjustablely mounted on the guide rail frame 41244 along the longitudinal direction. The second sub-assembly horizontal plate 41242 is adjustablely disposed on the sub-assembly lifting frame 41245. Specifically, the second sub-assembly horizontal plate 41242 is slidably mounted on the top of the sub-assembly lifting frame 41245 through a slide rail slider assembly, and is driven by a cylinder disposed on the sub-assembly lifting frame 41245 to move along the first direction X, thereby being able to be misaligned with the first sub-assembly horizontal plate 4121 to facilitate the loading and unloading of the magazine 4114 on the first sub-assembly horizontal plate 4121. The sub-assembly lifting frame 41245 is longitudinally mounted on the guide rail frame 41244 via a slide rail slider assembly. Driven by a cylinder mounted on the guide rail frame 41244, it adjusts the height of the second sub-assembly horizontal plate 41242 longitudinally, thereby adjusting the longitudinal distance between the transition sleeve 41243 and the corresponding magazine 4114. In use, the second sub-assembly horizontal plate 41242 is first misaligned with the first sub-assembly horizontal plate 4121. Then, the magazine 4114 is assembled onto the first sub-assembly horizontal plate 4121. The second sub-assembly horizontal plate 41242 is then reset so that the transition sleeve 41243 and the magazine 4114 are coaxially aligned. Finally, the height of the second sub-assembly horizontal plate 41242 is lowered so that the transition sleeve 41243 and its corresponding magazine 4114 abut and connect.

[0055] like Figure 10 and Figure 11 As shown, two sub-packing support plates 41246 are arranged on the upper side of the second sub-packing horizontal plate 41242. The transition sleeve 41243 and the brush 41241 are located between the two sub-packing support plates 41246. The brush 41241 is installed on the sub-packing support plate 41246 adjacent to the brush 41241 through the pad 412411. The two sub-packing support plates 41246 are connected by the pressure frame bracket 41247, which is located on the upper side of the transition sleeve 41243. A first guide shaft 41248 is mounted on the transition sleeve 41243. The first guide shaft 41248 passes through the pressure frame bracket 41247 and is slidably connected to it. A second buffer spring 41249 is sleeved on the first guide shaft 41248, which is located between the transition sleeve 41243 and the pressure frame bracket 41247. In this embodiment, the end of the first guide shaft 41248 located on the upper side of the pressure frame bracket 41247 is provided with a shoulder or fitted with a nut to prevent it from disengaging from the pressure frame bracket 41247 longitudinally downwards. During use, as the second dispensing horizontal plate 41242 moves longitudinally downwards towards the first dispensing horizontal plate 4121, rigid contact between the transition sleeve 41243 and the magazine 4114 is avoided, ensuring that the transition sleeve 41243 and the magazine 4114 are tightly pressed together while preventing damage to the equipment.

[0056] like Figure 2 and Figure 3As shown, the feeder unit 41 also includes a frame 417. The first gantry adjustment module 410, the first feeding module 411, the material distribution module 412, the secondary positioning module 413, the second feeding module 419 and the third gripping module 416 are all mounted on the frame 417. The first gripping module 414 and the second gripping module 415 are mounted on the first gantry adjustment module 410.

[0057] like Figure 14 and Figure 15 As shown, the secondary positioning module 413 includes a positioning fixture plate 4131 and a positioning push block 4132. The positioning fixture plate 4131 is provided with a longitudinal reference surface 41312 and a V-shaped positioning surface 41311. The longitudinal reference surface 41312 is used to support the collector plate. The V-shaped positioning surface 41311 is set towards the positioning push block 4132 and is used to position the collector plate. The positioning push block 4132 can approach or move away from the V-shaped positioning surface 41311. In the longitudinal direction, the positioning push block 4132 is higher than the longitudinal reference surface 41312. In use, the first suction cup 4154 of the second gripping module 415 grips the collection plate at the material distribution module 412 and transfers it to the secondary positioning module 413. Specifically, the collection plate is placed on the longitudinal reference plane 41312, and the positioning push block 4132 moves toward the V-shaped positioning surface 41311 to drive the collection plate to move toward the V-shaped positioning surface 41311, and the collection plate is positioned by the V-shaped positioning surface 41311.

[0058] like Figure 14 and Figure 15 As shown, the secondary positioning module 413 also includes a secondary positioning bracket 4133. A positioning fixture plate 4131 is disposed on the secondary positioning bracket 4133. A sliding push plate 4134 is slidably mounted on the secondary positioning bracket 4133 via a slide rail slider assembly. A cylinder is mounted on the secondary positioning bracket 4133 to drive the sliding push plate 4134 so that the sliding push plate 4134 can move closer to or away from the positioning fixture plate 4131. A positioning push block 4132 is slidably mounted on the sliding push plate 4134 via a slide rail slider assembly. A second limiting plate 41341 is disposed on the sliding push plate 4134. The positioning push block 4132 is located between the second limiting plate 41341 and the positioning fixture plate 4131. A third buffer spring 41342 is disposed between the positioning push block 4132 and the second limiting plate 41341. In use, the sliding push plate 4134 is driven by the cylinder to move toward the positioning clamp plate 4131. When the positioning push block 4132 cooperates with the V-shaped positioning surface 41311 to position the collector plate, the positioning push block 4132 is subjected to force to cooperate with the second limiting plate 41341 to compress the third buffer spring 41342, so as to achieve flexible contact between the positioning push block 4132 and the collector plate, which can prevent the collector plate from being crushed.

[0059] In some embodiments, an elastic pressing strip 41321 is provided at one end of the positioning push block 4132 facing the V-shaped positioning surface 41311. The elastic pressing strip 41321 is made of elastic rubber or elastic silicone to further prevent damage to the manifold.

[0060] Furthermore, the secondary positioning module 413 also includes a transplanter 4135, the secondary positioning bracket 4133 is mounted on the transplanter 4135, the transplanter 4135 is slidably mounted on the frame 417 via a slide rail slider assembly, and is driven by a linear module set on the frame 417 to move in the first direction X to approach or move away from the third gripping module 416.

[0061] like Figure 16 As shown, the feeder plate loading section 41 also includes a second gantry adjustment module 418 disposed on the frame 417. The second gantry adjustment module 418 includes a second main frame 4181 and a second gantry 4182. The second gantry 4182 is mounted on the second main frame 4181 via a linear module and can be driven by the linear module to move along the first direction X. The third gripping module 416 is longitudinally adjustablely mounted on the second gantry 4182 via a linear module. In this embodiment, optionally, the third gripping module 416 has the same structure as the second gripping module 415, both gripping the feeder plate and transferring it via a suction cup; the difference is that the third gripping module 416 does not have the problem of feeder plate distribution, so there is no need to set up a vibrator 4156. Therefore, the specific structure of the third gripping module 416 will not be described in detail here.

[0062] like Figure 3 As shown, the second feeding module 419 includes a second magnetic drive line 4191, which includes several second movers 4192. A positioning plate 4193 is mounted on each of the second movers 4192. A positioning groove is provided on the upper side of the positioning plate 4193, and a first positioning pin 4194 is disposed within the positioning groove. The second movers 4192 are used to transport the collector plate on the positioning plate 4193 to the collector plate welding part 42. In this embodiment, the collector plate is circular, and the shape of the positioning groove matches the shape of the collector plate. A positioning hole 21 is provided through the center of the collector plate, which cooperates with the first positioning pin 4194 to position the collector plate.

[0063] like Figures 17 to 19As shown, the current collector welding section 42 includes a galvanometer module 421, a rotary table module 422, and a feeding module 423. The rotary table module 422 is located between the galvanometer module 421 and the feeding module 423. The feeding module 423 is used to transfer the current collector at the second feeding module 419 to the rotary table module 422. The cell body 3 located between the rotary table module 422 and the feeding module 423 corresponds to the current collector on the rotary table module 422, and the cell body 3 can move toward the current collector to fit against it. The galvanometer module 421 is used to project a laser beam 4211 to weld the current collector to the cell body 3. Optionally, the loading module 423 includes a welding base 4231 and a PPU handling robot 4232 disposed on the welding base 4231. A second magnetic drive cable 4191 passes under the welding base 4231 to facilitate the transport of the collector plate to the underside of the PPU handling robot 4232 via the second mover 4192. The PPU handling robot 4232 grips the collector plate with a suction cup and rotates it 90° to the rotary table module 422. Here, the PPU handling robot 4232 is a 90° PPU handling robot.

[0064] Furthermore, the rotary table module 422 includes a motor mounting base 4221 and a rotary disk 4222. The rotary disk 4222 is rotatably mounted on the motor mounting base 4221, and the axis of rotation of the rotary disk 4222 is parallel to the horizontal plane. The rotary disk 4222 is provided with at least one welding hole, and a welding copper nozzle 42221 is fitted in the welding hole. A second positioning pin 42222 is arranged on the welding copper nozzle 42221, and a current collector plate on the welding copper nozzle 42221 is sleeved outside the second positioning pin 42222. Two battery cell clamping plates 42223 are arranged opposite to each other on the rotary disk 4222. The two battery cell clamping plates 42223 can be close to or far away from each other. When the battery cell body 3 is attached to the current collector plate, the battery cell body 3 is located between the two battery cell clamping plates 42223. In this embodiment, the rotating disk 4222 is rotatably mounted on the motor mounting base 4221 by the DD motor 4223, and the two cell clamps 42223 are driven by the finger cylinders mounted on the rotating disk 4222. They are used to accurately position the cell body 3 in conjunction with the cell clamp 12 during the welding of the current collector and the cell body 3, so as to ensure the welding accuracy of the current collector and the cell body 3.

[0065] like Figure 19 As shown, optionally, the rotary disk 4222 is provided with four welding holes, which are evenly distributed around the center of the rotary disk to provide four material storage positions on the rotary disk. The material feeding operation of the collecting plate can be carried out at the same time as welding, which helps to improve the working efficiency of the equipment.

[0066] In use, the laser beam 4211 generated by the galvanometer module 421 is projected and passes through the welding copper nozzle 42221 to weld the current collector and the battery cell body 3.

[0067] In some embodiments, in order to improve the stability of the collector plate assembled on the rotating disk 4222, a negative pressure hole is provided on the welding copper nozzle 42221 to generate negative pressure to adsorb and fix the collector plate.

[0068] In some embodiments, the two cell clamps 42223 can also be positioned relative to each other to achieve the positioning of the current collector. In this embodiment, the welding copper nozzle 42221 does not need to be configured with a negative pressure hole. It should be noted that after reaching the welding station, the two cell clamps 42223 need to be relatively far apart so that the cell body 3 can fully fit into the corresponding current collector.

[0069] like Figure 18 As shown, in this embodiment, a drive push plate 424 is provided on the welding base 4231. The drive push plate 424 is equipped with a cell push block 4241 and a clamp push block 4242. The drive push plate 424 is driven by a cylinder provided on the welding base 4231 to move closer to or away from the rotating disk 4222. Specifically, the drive push plate 424 corresponds to the welding station on the rotary disk 4222. In use, when the battery cell body 3 on the first mover 11 is in the welding station, the cylinder acts on the drive push plate 424, causing the battery cell push block 4241 and the clamp push block 4242 to move toward the rotary disk 4222. The clamp push block 4242 acts on the battery cell clamp 12, specifically the mover clamp plate 122, so that it carries the battery cell body 3 toward the current collector on the rotary disk 4222 in the welding station until the two are in contact. The battery cell push block 4241 corresponds to the battery cell body 3 and cooperates with the copper nozzle to limit the battery cell body 3 in the axial direction, so as to ensure that the battery cell body 3 and the current collector on the copper nozzle are sufficiently in contact, reducing the risk of poor welding.

[0070] Furthermore, a third guide shaft is provided on the clamp push block 4242. The third guide shaft passes through the drive push plate 424 and is slidably connected to it. A fourth buffer spring is sleeved on the third guide shaft. The fourth buffer spring is located between the clamp push block 4242 and the drive push plate 424. In this embodiment, during the movement of the drive push plate 424 toward the rotary disk 4222, the clamp push block 4242 first acts on the mover clamp plate 122. During this period, the first reset member 1213 and the fourth buffer spring are compressed, and the cell clamp 12 reaches the welding state. As the fourth buffer spring is continuously compressed until the cell push block 4241 acts on the cell body 3, the drive push plate 424 stops moving. After the welding is completed, the drive push plate 424 resets, the mover clamp plate 122 of the cell clamp 12 resets, the cell clamp 12 returns to the transport state, the rotary disk 4222 rotates 90° to supply the next collector disk, the first magnetic drive line 1 drives the first mover 11 to move so that the next cell body 3 reaches the welding station. The aforementioned actions can be repeated.

[0071] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A collector plate welding mechanism, comprising a collector plate feeding section and a collector plate welding section arranged adjacent to each other, wherein the battery cell body is located in the collector plate welding section; The feeding section of the collecting plate includes a first feeding module, a distributing module, a secondary positioning module, and a second feeding module arranged sequentially. It also includes a first gripping module, a second gripping module, a third gripping module, a first gantry adjustment module, and a second gantry adjustment module. The first gripping module and the second gripping module are located within the first gantry adjustment module, and the third gripping module is located within the second gantry adjustment module. The first feeding module includes several clips, and several collector plates are stacked longitudinally on the clips. The first gripping module is used to transfer the clips of the first feeding membrane block to the dispensing module. The second gripping module is used to transfer the collector plates on the clips at the dispensing module to the secondary positioning module for secondary positioning of the collector plates. The third gripping module is used to transfer the collector plates located at the secondary positioning module to the second feeding module. The second feeding module is used to provide the collector plate to the welding part of the collector plate.

2. The manifold welding mechanism according to claim 1, characterized in that, The first feeding module includes a tray and fixing bars, a plurality of fixing bars are spaced apart along a first direction, the fixing bars extend along a second direction, and a plurality of clips are spaced apart along the extending direction of the fixing bars; The first direction and the second direction are perpendicular, and both the first direction and the second direction are parallel to the horizontal plane.

3. The manifold welding mechanism according to claim 2, characterized in that, The first gripping module includes a first longitudinal support plate and a variable pitch component. The variable pitch component is adjustablely mounted on the first longitudinal support plate. The first longitudinal support plate is located above the first feeding module and the dispensing module. The first longitudinal support plate can move along the first direction and the second direction. The pitch-changing assembly includes a first main horizontal plate and a first main vertical plate connected to each other. The first main horizontal plate is adjustablely mounted on the first longitudinal support plate, and the first main vertical plate is located below the first main horizontal plate. A plurality of variable-pitch connecting plates are spaced apart along the second direction on the first main longitudinal plate. The variable-pitch connecting plates are equipped with a first gripper for holding the magazine. The variable-pitch connecting plates are movably disposed on the first main longitudinal plate along the second direction.

4. The manifold welding mechanism according to claim 3, characterized in that, The pitch-changing assembly further includes a drive plate that is adjustablely mounted on the first main longitudinal plate along the longitudinal direction. The pitch-changing connecting plate is slidably connected to the first main longitudinal plate. The pitch-changing connecting plate is located between the first main longitudinal plate and the drive plate. A first roller is disposed on the pitch-changing connecting plate. A first drive groove adapted to the first roller is disposed on the drive plate. The first roller is mounted in the first drive groove. When the drive plate moves longitudinally, the first drive chute acts on the first roller to cause the variable pitch connecting plate to move in the second direction; Several first drive slant slots correspond one-to-one with several variable pitch connecting plates; In the second direction, the inclination of the first drive chute gradually decreases from both ends toward the middle, and the inclination directions of the first drive chute on both sides of the middle are opposite.

5. The manifold welding mechanism according to claim 1, characterized in that, The material distribution module includes a first dispensing horizontal plate, a reference limiting block, a floating clamping block assembly, and a material distribution assembly, wherein: A lifting hole is provided through the first dispensing horizontal plate. The reference limiting block and the floating pressing block assembly are both assembled on the upper side of the first dispensing horizontal plate. The cartridge in the dispensing module is assembled between the reference limiting block and the floating pressing block assembly. A lifting rod is embedded in the lifting hole. The lifting rod can move longitudinally to extend into the cartridge and drive the collecting plate in the cartridge to move longitudinally toward the dispensing assembly. The material distribution assembly includes two brushes disposed on the top of the magazine. The two brushes are arranged opposite each other, and a material distribution channel is formed between the two brushes. The width of the material distribution channel is smaller than the diameter of the collecting plate.

6. The manifold welding mechanism according to claim 5, characterized in that, The reference limiting block has a V-shaped groove on one side facing the floating clamping block assembly for limiting the magazine.

7. The manifold welding mechanism according to claim 5, characterized in that, The floating clamping block assembly includes an adjusting seat plate adjustablely disposed on the upper side of the first dispensing horizontal plate, a fixed seat plate disposed on the adjusting seat plate, a pressure block slidably mounted on the fixed seat plate, a first limiting plate disposed at the end of the fixed seat plate away from the reference limiting block, the pressure block being located between the first limiting plate and the reference limiting block, and a first buffer spring disposed between the pressure block and the first limiting plate.

8. The manifold welding mechanism according to claim 5, characterized in that, The material distribution assembly further includes a second dispensing horizontal plate, which is located above the first dispensing horizontal plate, and the magazine mounted on the material distribution module is located between the first dispensing horizontal plate and the second dispensing horizontal plate. The second sub-packing horizontal plate is equipped with a transition sleeve corresponding to the magazine, the transition sleeve penetrates the second sub-packing horizontal plate, and the brush extends at least partially to the outlet end of the transition sleeve.

9. The manifold welding mechanism according to claim 8, characterized in that, The upper side of the first sub-packaging horizontal plate is provided with a guide rail frame, and a sub-packaging lifting frame is adjustablely mounted on the guide rail frame along the longitudinal direction. The second sub-packaging horizontal plate is adjustablely disposed on the sub-packaging lifting frame.

10. The manifold welding mechanism according to claim 8, characterized in that, The upper side of the second sub-packing horizontal plate is provided with two sub-packing support plates. The transition sleeve and the brush are located between the two sub-packing support plates. The brush is installed on the sub-packing support plate adjacent to the brush by a pad. The two sub-packing support plates are connected by a pressure frame bracket. The pressure frame bracket is located on the upper side of the transition sleeve. The transition sleeve is equipped with a first guide shaft, which passes through the pressure frame bracket and is slidably connected to it. A second buffer spring is sleeved on the first guide shaft, and the second buffer spring is located between the transition sleeve and the pressure frame bracket.

11. The manifold welding mechanism according to claim 1, characterized in that, The secondary positioning module includes a positioning fixture plate and a positioning push block. The positioning fixture plate is provided with a longitudinal reference surface and a V-shaped positioning surface. The longitudinal reference surface is used to support the collector plate, and the V-shaped positioning surface is set towards the positioning push block for positioning the collector plate. The positioning push block can approach or move away from the V-shaped positioning surface, and in the longitudinal direction, the positioning push block is higher than the longitudinal reference surface.

12. The manifold welding mechanism according to claim 11, characterized in that, The secondary positioning module further includes a secondary positioning bracket, the positioning fixture plate is disposed on the secondary positioning bracket, and a sliding push plate is mounted on the secondary positioning bracket, the sliding push plate being able to move closer to or further away from the positioning fixture plate; The positioning push block is slidably mounted on the sliding push plate, the sliding push plate is provided with a second limiting plate, the positioning push block is located between the second limiting plate and the positioning clamp plate, and a third buffer spring is provided between the positioning push block and the second limiting plate.

13. The manifold welding mechanism according to claim 1, characterized in that, The second gripping module includes a second longitudinal support plate and a second main transverse plate, wherein the second main transverse plate is adjustablely mounted on the second longitudinal support plate along the longitudinal direction; The second main horizontal plate is provided with several extension seats, and the extension seats are equipped with first suction cups; The second gripping module also includes a vibrator connected to the extension mount.

14. The manifold welding mechanism according to claim 13, characterized in that, The second main horizontal plate and the extension seat are connected by a buffer pad.

15. The manifold welding mechanism according to claim 1, characterized in that, The second feeding module includes a second magnetic drive line, which includes a plurality of second movers. A positioning plate is mounted on the second mover. A positioning groove is provided on the upper side of the positioning plate. A first positioning pin is provided in the positioning groove. The second mover is used to transport the collector plate on the positioning plate to the collector plate welding part.

16. The manifold welding mechanism according to claim 1, characterized in that, The current collector welding section includes a galvanometer module, a rotary table module, and a feeding module. The rotary table module is located between the galvanometer module and the feeding module. The feeding module is used to transfer the current collector from the second feeding module to the rotary table module. The cell body located between the rotary table module and the feeding module corresponds to the current collector on the rotary table module, and the cell body can move toward the current collector to fit against it. The galvanometer module is used to project a laser beam to weld the current collector to the cell body.

17. The manifold welding mechanism according to claim 16, characterized in that, The rotary table module includes a motor mounting base and a rotating disk. The rotating disk is rotatably mounted on the motor mounting base, and the axis of rotation of the rotating disk is parallel to the horizontal plane. The rotating disk is provided with at least one welding hole, a welding copper nozzle is installed in the welding hole, a second positioning pin is disposed on the welding copper nozzle, and a collector plate located on the welding copper nozzle is sleeved outside the second positioning pin; Two cell clamps are arranged opposite each other on the rotating disk. The two cell clamps can be close to or far apart from each other. When the cell body is attached to the current collector, the cell body is located between the two cell clamps.

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