A battery pole piece lamination platform

Abstract

The application discloses a battery pole piece lamination platform, which comprises a horizontally arranged base, a translation assembly and a lamination table, the translation assembly is arranged on the base, the lamination table comprises a support assembly, a platform assembly, two vertical drive assemblies, a horizontal drive assembly, a pressing assembly and a pressing piece, the support assembly is arranged on the translation assembly, the platform assembly is arranged on the support assembly, the vertical drive assembly comprises two groups, the two groups of vertical drive assemblies are arranged on the two sides of the support assembly, the horizontal drive assembly is arranged on the two sides of the vertical drive assembly, the pressing assembly is arranged on the horizontal drive assembly, the pressing assembly is slidably connected to the vertical drive assembly in the horizontal direction, and the pressing piece is horizontally connected to the pressing assembly. The application integrates the pole piece bearing and real-time lifting adjustment functions to adapt to the height change of the pole piece assembly in the lamination process, has the same side synchronous alternating type pole piece pressing function, has the pressing limit stop function, improves the pole piece lamination position stability and accuracy, and guarantees the relative height stability of the pressing piece.

Description

Technical Field

[0001] This invention relates to the field of lithium battery cell electrode production equipment, and in particular to a battery electrode stacking platform. Background Technology

[0002] A battery cell is the core structure of a lithium-ion battery. It refers to a single electrochemical cell containing positive and negative electrodes. It is not used directly; the cell and the protection circuit board together form a battery that can be used directly. The cell includes the cell body, which is generally a block or columnar structure. It contains multiple layers of positive and negative electrodes, which are filled with electrolyte to form the cell body. One end wall of the cell body has flexible sheet-like positive and negative electrode plates that extend outwards for connection to the circuit to provide power.

[0003] In the manufacturing process of battery cells, an intermediate step is electrode stacking. In this step, positive and negative electrode sheets are alternately stacked to form the battery cell structure. After stacking, the electrode sheets need to be transported to subsequent processing stations for processes such as heat melting. To ensure the stability of the electrode positions during transport, electrode separators are inserted on both sides of the stacked electrode assembly to grip and transport it. Specifically, during the stacking process, the electrode separators are first placed horizontally on the stacking platform, and then the positive and negative electrode sheets are alternately stacked on the separators. Once the number of stacked positive and negative electrode sheets reaches a predetermined amount, an electrode assembly is formed. The electrode separators are then stacked on top of the electrode assembly to form an electrode module. During subsequent transport, grippers hold and fix the electrode separators on both sides of the electrode module, using rigid electrode separators to ensure even force distribution during gripping. To ensure uniformity and relative positional stability of multiple electrode sheets, while avoiding direct contact between the grippers and the electrode sheets, which could cause surface damage, the following measures are required during the stacking process. After a positive or negative electrode sheet or electrode separator is placed on the stacking platform, it needs to be pressed downwards to maintain its positional stability. When the next positive or negative electrode sheet or electrode separator is stacked, the pressing action needs to be released to facilitate stacking. Therefore, a stacking platform needs to be designed to support the electrode assembly while addressing the technical challenges of pressing the electrode assembly between the stacking layers. Furthermore, the motion interference between the pressed electrode assembly and the stacked sheets needs to be resolved. Additionally, as the positive and negative electrode sheets or electrode separators are continuously stacked, the thickness of the electrode assembly on the stacking platform increases, and its height changes continuously. Therefore, the real-time adjustment of the pressed electrode assembly height also needs to be addressed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a battery electrode stacking platform that integrates electrode support and real-time lifting and adjusting functions to adapt to changes in the height of the electrode assembly during the stacking process, has a synchronous alternating electrode pressing function on the same side, and has a pressing limit function, thereby improving the stability and accuracy of the electrode stacking position and ensuring the relative height stability of the pressing.

[0005] The technical solution adopted in this invention is as follows: A battery electrode stacking platform is used to alternately press the electrode sheets or electrode separators placed on the stacking platform during the stacking process. It includes a horizontally arranged base, a translation component, and a stacking platform. The translation component is disposed on the base and outputs linear power in the X direction to drive the stacking platform disposed thereon to move linearly. The stacking platform includes a support component, a platform component, a vertical drive component, a horizontal drive component, a pressing component, and a pressing component. The support component is disposed on the translation component and extends upward to form a bearing plane. The platform component is disposed on the support component and is used to support the electrode sheets or electrode separators during stacking. The vertical drive assembly includes two sets, which are arranged on both sides of the support assembly with their output ends facing upwards. After outputting rotational power, the vertical drive assembly converts the rotational power into lifting power in the vertical direction. The horizontal drive assembly is arranged on both sides of the vertical drive assembly and is used to output horizontal power. The pressing assembly is arranged on the horizontal drive assembly and is driven by the horizontal drive assembly to move horizontally in a straight line. The pressing assembly is slidably connected to the vertical drive assembly in the horizontal direction and is driven by the vertical drive assembly to move up and down. The pressing assembly is horizontally connected to the pressing assembly and moves to the top of the platform assembly with the pressing assembly to press the electrode or electrode separator during stacking.

[0006] Preferably, the electrode assembly includes a separator and an electrode group, wherein the separator includes at least two separators, which are vertically spaced apart; the electrode group is disposed between two adjacent separators and is pressed and fixed by the separators; the electrode group is composed of multiple positive and negative electrode sheets stacked alternately.

[0007] Preferably, the base is a rectangular box structure with an inwardly recessed sliding space inside; the translation component includes a horizontal slide rail and a linear module, wherein the horizontal slide rail is disposed in the sliding space along the X direction; the linear module is disposed in the sliding space and outputs linear power along the X direction; the stacking platform is disposed on the linear module and is slidably connected to the horizontal slide rail, and the stacking platform moves linearly along the X direction driven by the linear module.

[0008] Preferably, the platform component includes a driving component, a load-bearing limiting component, and a platform component. The driving component is vertically arranged with its output end facing upward. The driving component outputs rotational power and converts the rotational power into a linear thrust along the vertical direction. The load-bearing limiting component is located above the driving component for load support and provides a limiting reference surface. The platform component is located above the driving component and connected to the output end of the driving component. The driving component drives the platform component to move up and down, and the electrode assembly is horizontally stacked on the platform component.

[0009] Preferably, the driving component includes a lifting motor, a drive shaft, a threaded sleeve, and a top sleeve. The lifting motor is vertically positioned with its output end facing upwards. The drive shaft is connected to the output end of the lifting motor and rotates under its drive. The threaded sleeve is fitted onto the drive shaft and threadedly connected to it. When the drive shaft rotates, the rotational motion is converted into linear motion of the threaded sleeve in the vertical direction through the threaded connection. The top sleeve has a rectangular sleeve structure and is vertically positioned above the drive shaft. The threaded sleeve is inserted and fixed to the bottom of the top sleeve, driving the top sleeve to move up and down.

[0010] Preferably, the bearing assembly includes a Z-shaped support, a tablet pressing limit seat, a bearing seat, and a vertical slide rail. The Z-shaped support comprises two Z-shaped supports, each disposed on one side of the top sleeve. The upper and lower sides of the Z-shaped support are vertically extending blocks, and the space between the two blocks is a horizontal block. The bottom vertical block is fixedly disposed on the top of the support sleeve of the support assembly. The tablet pressing limit seat is an H-shaped bracket structure, disposed on the Z-shaped support, with its two sides fixed to the sidewalls of the Z-shaped support from the outside. The upper part of the tablet pressing limit seat extends vertically above the support platform component, used to limit and press the tablet through its top surface during tablet stacking.

[0011] Preferably, the bearing seat is an L-shaped plate structure, and the bearing seat is disposed on one side of the top sleeve. The vertical support block of the bearing seat is slidably connected to the outer side wall of the support sleeve through a vertical slide rail. A through groove is opened on the outer side wall of the bearing seat, and a Z-shaped support is inserted in the through groove. The top of the bearing seat is connected to a platform component, which is used to guide and limit the platform component from one side.

[0012] Preferably, the platform component includes a lifting support sleeve, a stacked base, and a side support plate. The lifting support sleeve has a rectangular sleeve structure and an installation groove along the vertical direction inside for installing and fixing the top sleeve. The stacked base is horizontally disposed on the top of the lifting support sleeve and extends to the outer side of the lifting support sleeve on both sides. The side support plate is disposed on one side of the bottom of the stacked base and extends vertically downward. The side support plate is slidably connected to the outer wall of the support sleeve via a vertical slide rail.

[0013] Preferably, the vertical drive assembly includes a lifting motor, a lifting shaft, a lifting sleeve, and a guide seat. The lifting motor is vertically arranged with its output end facing upward. The lifting shaft is connected to the output end of the lifting motor and rotates under the drive of the lifting motor. The lifting sleeve is fitted onto the lifting shaft and is threadedly connected to the lifting shaft. The threaded connection converts the rotational power of the lifting shaft into lifting power to drive the lifting sleeve to move up and down.

[0014] Preferably, the guide seat is a strip-shaped structure, with a connecting sleeve in the middle of one side of the guide seat, which is connected and fixed to the lifting sleeve; the other side of the guide seat is provided with an inwardly recessed guide groove.

[0015] Preferably, the transverse drive assembly includes a drive base, drive magnets, and a transverse drive unit. The drive base is a rectangular base structure with a drive groove in its middle and an open surface at the top. The drive magnets include at least two sets, which are arranged in pairs on the two inner sidewalls of the drive groove, with a sliding gap between the two drive magnets.

[0016] Preferably, the horizontal drive unit is horizontally disposed on the upper part of the drive base body, and a T-shaped guide block is provided at the bottom of the horizontal drive unit. The T-shaped guide block is inserted into the drive groove for guiding and limiting. After the horizontal drive unit conducts electricity, it moves horizontally in a straight line by the magnetic force of the drive magnetic block.

[0017] Preferably, the tableting assembly includes a connecting support, a tableting support, a connecting component, and a tableting component, wherein the connecting support is connected to a horizontal drive; the tableting support is disposed on the connecting support and extends vertically, with one side forming an installation groove, and a vertical slide rail is provided in the installation groove; the tableting component and the connecting component are arranged vertically at intervals and are slidably connected to the vertical slide rail respectively.

[0018] Preferably, the connecting component includes a first slide block, a roller seat, and a roller, wherein the first slide block is slidably connected to a vertical slide rail; the roller seat is disposed on the side of the first slide block; the roller is rotatably connected to the roller seat and extends into the guide groove of the guide seat, and the roller slides freely in the guide groove.

[0019] Preferably, the tableting component includes a second slide block, a tableting cylinder, a drive connecting block, and a tableting seat. The second slide block is disposed above the first slide block and slidably connected to a vertical slide rail. The tableting cylinder is disposed on the side wall of the first slide block with its output end facing upward. The drive connecting block is disposed on the side wall of the second slide block and connected to the output end of the tableting cylinder, which drives the second slide block to move up and down. The tableting seat is horizontally disposed on the top of the second slide block for fixing the tablet.

[0020] The beneficial effects of this invention are as follows: This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing a battery electrode stacking platform that integrates electrode support and real-time lifting and lowering adjustment functions to adapt to changes in the height of the electrode assembly during the stacking process. It features synchronous alternating electrode pressing on the same side and a pressing limit function, thereby improving the stability and accuracy of the electrode stacking position and ensuring the relative height stability of the pressing.

[0021] This invention aims to provide a stacking platform for the automated assembly of battery cells in the field of new energy batteries, specifically for electrode stacking. Its function is to provide a support platform during the stacking process, supporting the electrode assembly. It also features alternating electrode pressing from both sides to ensure electrode position stability and real-time height adjustment to adapt to changes in electrode assembly thickness during stacking. Furthermore, a single power source drives the synchronous lifting and lowering of the two pressing assemblies on the same side of the stacking platform, saving power output while ensuring synchronization of pressing on the same side. The platform also integrates a height limit function to limit the maximum pressing height, preventing electrode damage due to over-pressing. Specifically, the present invention comprises a base, a translation component, and a stacking stage. The base is a rectangular box-shaped structure with a translation component arranged along the X-direction inside, used to drive the stacking stage mounted on it to move linearly along the X-direction, so that the stacking stage can move back and forth linearly between different workstations to accommodate synchronous stacking actions on both sides. The stacking stage comprises a support component, a platform component, a vertical drive component, a horizontal drive component, a pressing component, and a pressing device. The support component is mounted on the translation component and is used for overall support. The support component extends along the Y-direction and has a platform component mounted on it for supporting the electrode sheets or electrode separators to be stacked. The vertical drive component includes two sets of components respectively... On both sides of the platform assembly, a single set of vertical drive assemblies drives two sets of tablet pressing assemblies to move up and down. The horizontal drive assembly includes four sets, with two sets of horizontal drive assemblies respectively set on both sides of the vertical drive assembly, driving the tablet pressing assemblies to move horizontally in a straight line. The tablets are horizontally set on the top of the tablet pressing assembly and extend towards the platform assembly. During the stacking process, the two sets of tablet pressing assemblies on one side move synchronously vertically and horizontally under the drive of a single set of vertical drive assemblies, so as to tilt and approach the electrode assembly on the lower platform assembly from the outside of the platform assembly, from the top and outside. When stacking, the tablet pressing assembly drives the tablets to move away from the platform assembly in the opposite direction to avoid interference with the movement of the stacking mechanism.

[0022] Specifically, the platform component of this invention includes a drive component, a load-bearing and limiting component, and a platform component. The drive component is vertically arranged and, after outputting rotational power through a lifting motor, converts the rotational power into vertical linear power through a threaded connection between a drive shaft and a threaded sleeve, which is used to drive the lifting and lowering movement of the top sleeve. The top sleeve is embedded in the mounting groove of the lifting support sleeve and is used to drive the lifting support sleeve to move up and down. The top of the lifting support sleeve is a stacked plate base, which is used to horizontally support the stacked plate support set above it. Two support adjustment seats are spaced apart on the stacked plate support, and an insertion space is formed between the two support adjustment seats. During lamination, the electrode separators are placed horizontally on two support adjustment seats, which suspend and support them in the air. The pre-reserved insertion space allows the clamps to be inserted after lamination, so that the electrode assembly can be transported by clamping the electrode separators on the upper and lower sides. In addition, the bearing spacing can be adjusted by adjusting the relative position of the support adjustment seats to accommodate electrode assemblies of different sizes. During the lamination process, based on the continuous increase in the thickness of the electrode assembly, in order to meet the process requirements of pressing the electrode assembly in the subsequent pressing process, a lifting motor drives the lifting support to raise and lower the entire lamination support, so as to adjust the height of the electrode assembly in real time. Furthermore, one side of the lifting support is connected to a downwardly extending side support plate, and the other side is provided with a bearing seat. The side walls of the side support plate and the bearing seat are respectively provided with through grooves. Z-shaped supports are provided in the through grooves. The lower end of the Z-shaped support is supported by the support below to maintain a constant relative height. The Z-shaped support is provided with an H-shaped tableting limit seat. The upper end of the tableting limit seat extends to the top of the stacking support platform, and the two sides are respectively provided with upwardly extending support columns. During the stacking process, the two tableting limit seats form four limiting fulcrums on both sides of the stacking support platform to provide an extreme limiting surface during the stacking and tableting process for extreme limiting of tableting.

[0023] Furthermore, in practical applications, the vertical drive assembly, horizontal drive assembly, pressing assembly, and pressing plates are located on the side of the stacking platform. A set of vertical drive assemblies is installed on each side of the stacking platform, and two sets of horizontal drive assemblies are configured on each side of each set of vertical drive assemblies. Each horizontal drive assembly is equipped with a pressing assembly, and pressing plates are horizontally connected to each pressing assembly. Overall, four sets of pressing assemblies are formed on the side of the stacking platform, with pressing plates horizontally supported on these four sets. During the stacking process, when the stacking robot picks up the material, two pressing plates on one side of the stacking platform, driven by the horizontal and vertical drive assemblies, press against the electrode assembly on the stacking platform from the outside and above. When the stacking robot stacks the electrode assembly, the two pressing plates release the electrode assembly outwards. During the next material pick-up, the two pressing plates on the other side press the electrode assembly tightly, and this alternating cycle continues until the stacking is complete. Furthermore, this invention simultaneously drives the two sets of tablet pressing assemblies on the same side of the stacking platform to move up and down using a single vertical drive assembly, ensuring the synchronization of the two tablet pressing assemblies on the same side. At the same time, the synchronous drive of the two sets of tablet pressing assemblies is achieved through a horizontally set guide seat. To avoid motion interference during the horizontal movement of the tablet pressing assemblies, an inwardly recessed guide groove is provided on the inner side of the guide seat and is movably connected to the rollers of the tablet pressing assembly in the horizontal direction. The guide groove drives the two sets of tablet pressing assemblies to move up and down in the vertical direction synchronously through the rollers. At the same time, when the horizontal drive assembly drives the tablet pressing assembly to move horizontally, the rollers slide horizontally in the guide groove, thereby avoiding motion interference in two mutually perpendicular directions. Attached Figure Description

[0024] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0025] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0026] Figure 3 This is one of the three-dimensional structural schematic diagrams of the stacking stage of the present invention.

[0027] Figure 4 This is the second three-dimensional structural schematic diagram of the stacking stage of the present invention.

[0028] Figure 5 This is the third three-dimensional structural diagram of the stacking stage of the present invention.

[0029] Figure 6 This is the fourth three-dimensional structural schematic diagram of the stacking stage of the present invention.

[0030] Figure 7 This is the fifth three-dimensional structural schematic diagram of the stacking stage of the present invention.

[0031] Figure 8 This is a three-dimensional structural diagram of the stacking stage of the present invention after concealing the components.

[0032] Figure 9This is one of the three-dimensional structural diagrams of the support assembly and platform assembly of the present invention.

[0033] Figure 10 This is the second three-dimensional structural diagram of the support assembly and platform assembly of the present invention.

[0034] Figure 11 This is one of the schematic diagrams showing the disassembled structure of the support component and the platform component of the present invention.

[0035] Figure 12 This is the second schematic diagram showing the disassembled structure of the support assembly and platform assembly of the present invention.

[0036] Figure 13 This is a three-dimensional structural diagram of the support assembly of the present invention.

[0037] Figure 14 This is one of the component breakdown diagrams of the platform components of the present invention.

[0038] Figure 15 This is the second schematic diagram of the component breakdown structure of the platform component of the present invention.

[0039] Figure 16 This is one of the three-dimensional structural diagrams of the platform components of the present invention.

[0040] Figure 17 This is the second three-dimensional structural diagram of the platform component of the present invention.

[0041] Figure 18 This is a three-dimensional structural diagram of the stacked support platform of the present invention.

[0042] Figure 19 This is a schematic diagram showing the disassembled structure of the stacked support and electrode assembly of the present invention.

[0043] Figure 20 This is a three-dimensional structural diagram of the electrode assembly of the present invention.

[0044] Figure 21 This is one of the three-dimensional structural diagrams of the vertical drive assembly and the horizontal drive assembly of the present invention.

[0045] Figure 22 This is the second three-dimensional structural diagram of the vertical drive assembly and the horizontal drive assembly of the present invention.

[0046] Figure 23 This is the third three-dimensional structural diagram of the vertical drive assembly and the horizontal drive assembly of the present invention.

[0047] Figure 24 This is the fourth three-dimensional structural diagram of the vertical drive assembly and the horizontal drive assembly of the present invention.

[0048] Figure 25 This is the fifth three-dimensional structural diagram of the vertical drive assembly and the horizontal drive assembly of the present invention.

[0049] Figure 26 This is one of the three-dimensional structural schematic diagrams of the guide seat of the present invention.

[0050] Figure 27 This is the second three-dimensional structural schematic diagram of the guide seat of the present invention.

[0051] Figure 28 This is a three-dimensional structural diagram of the transverse drive assembly of the present invention.

[0052] Figure 29 This is a schematic diagram showing the component breakdown structure of the transverse drive assembly of the present invention.

[0053] Figure 30 This is one of the three-dimensional structural schematic diagrams of the tablet compression assembly of the present invention.

[0054] Figure 31 This is the second three-dimensional structural schematic diagram of the tablet compression assembly of the present invention.

[0055] Figure 32 This is the third three-dimensional structural schematic diagram of the tablet compression assembly of the present invention.

[0056] In the picture: 1. Base; 2. Horizontal slide rail; 3. Linear module; 4. Stacking stage; 5. Electrode assembly; 41. Support assembly; 42. Platform assembly; 43. Vertical drive assembly; 44. Horizontal drive assembly; 45. Tableting assembly; 46. Tableting unit; 411. Support; 412. Support plate; 413. Support platform; 414. Support sleeve; 415. First slide rail; 416. First slider; 417. Second slide rail; 418. Second slider; A. First slide rail groove; B. Second slide rail groove; C. Vertical slot; 421. Lifting motor; 422. Drive shaft; 423. Threaded sleeve; 424. Top sleeve; 425. Z-type support; 426. Tableting limit seat; 427. Lifting support sleeve; 428. Stacking base; 429. Side support plate; 4210. Bearing seat; 4211. Stacking support platform; 4212. Support platform adjustment seat; D. Mounting groove; 01. Separator; 02. Electrode assembly; 431. Lifting motor; 432. Lifting shaft; 433. Lifting sleeve; 434. Guide push seat; 435. Connecting sleeve; E. Strip guide groove; 441. Drive base; 442. Drive magnet; 443. Horizontal drive element; 444. T-shaped guide block; F. Drive slot; 451. Connecting support; 452. Tableting support; 453. Tableting slide rail; 454. First slide; 455. Tableting cylinder; 456. Second slide; 457. Drive connecting block; 458. Tableting seat; 459. Roller seat; 4510. Roller. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0058] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] Example 1: As Figures 1 to 8As shown, this invention proposes a battery electrode stacking platform for stacking battery electrodes and alternately pressing electrodes or electrode separators placed on the stacking platform during the stacking process. It includes a horizontally arranged base 1, a translation component, and a stacking platform 4. The translation component is disposed on the base 1 and outputs linear power in the X direction to drive the stacking platform 4 mounted thereon to move linearly. The stacking platform 4 includes a support assembly 41, a platform assembly 42, a vertical drive assembly 43, a horizontal drive assembly 44, a pressing assembly 45, and a pressing assembly 46. The support assembly 41 is disposed on the translation component and extends upward to form a bearing plane; the platform assembly 42 is disposed on the support assembly 41 and is used to support the electrodes or electrode separators during stacking; the vertical drive assembly 43, the horizontal drive assembly 44, the vertical drive assembly 45, and the horizontal drive assembly 46. The drive assembly 43 includes two sets. The two sets of vertical drive assemblies 43 are arranged on both sides of the support assembly 41 with their output ends facing upwards. After outputting rotational power, the vertical drive assembly converts the rotational power into lifting power in the vertical direction. The horizontal drive assembly 44 is arranged on both sides of the vertical drive assembly 43 and is used to output horizontal power. The pressing assembly 45 is arranged on the horizontal drive assembly 44 and is driven by the horizontal drive assembly 44 to move horizontally in a straight line. The pressing assembly 45 is slidably connected to the vertical drive assembly 43 in the horizontal direction and is driven by the vertical drive assembly 43 to move up and down. The pressing assembly 46 is horizontally connected to the pressing assembly 45 and moves above the platform assembly 42 with the pressing assembly 45 to press the electrode or electrode separator during stacking.

[0061] like Figure 20 As shown, the electrode assembly 0 of the present invention includes a partition 01 and an electrode group 02. The partition 01 includes at least two partitions, which are arranged vertically at intervals. The electrode group 02 is disposed between two adjacent partitions 01 and is pressed and fixed by the partitions 01. The electrode group 02 is composed of multiple positive and negative electrode sheets stacked alternately.

[0062] like Figures 1 to 2 As shown in the figure, as an embodiment of the present invention, the base 1 of the present invention is a rectangular box structure with an inwardly recessed sliding space inside; the translation component includes a horizontal slide rail 2 and a linear module 3, wherein the horizontal slide rail 2 is arranged in the sliding space along the X direction; the linear module 3 is arranged in the sliding space and outputs linear power along the X direction; the stacking platform 4 is arranged on the linear module 3 and is slidably connected to the horizontal slide rail 2, and the stacking platform 4 is driven by the linear module 3 to move linearly along the X direction.

[0063] Furthermore, this invention designs a battery electrode stacking platform that integrates electrode support and real-time lifting and lowering adjustment functions to adapt to changes in electrode assembly height during the stacking process. It features synchronous alternating electrode pressing on the same side and a pressing limit function, improving the stability and accuracy of electrode stacking position and ensuring relative height stability during pressing. This invention aims to provide a stacking platform for the automated assembly of battery cells in the new energy battery field, specifically for electrode stacking. Its function is to provide a support platform during the stacking process, supporting electrode groups, and simultaneously featuring alternating electrode pressing on both sides to ensure electrode position stability. It also has a real-time height adjustment function to adapt to changes in electrode assembly thickness during stacking. Furthermore, it uses a single power drive to synchronously lift and lower the two pressing assemblies on the same side of the stacking platform, saving power output while ensuring synchronicity of pressing on the same side. The platform also integrates a height limit function to limit the maximum pressing height, preventing electrode damage due to over-pressing. Specifically, the present invention comprises a base, a translation component, and a stacking stage. The base is a rectangular box-shaped structure with a translation component arranged along the X-direction inside, used to drive the stacking stage mounted on it to move linearly along the X-direction, so that the stacking stage can move back and forth linearly between different workstations to accommodate synchronous stacking actions on both sides. The stacking stage comprises a support component, a platform component, a vertical drive component, a horizontal drive component, a pressing component, and a pressing device. The support component is mounted on the translation component and is used for overall support. The support component extends along the Y-direction and has a platform component mounted on it for supporting the electrode sheets or electrode separators to be stacked. The vertical drive component includes two sets of components respectively... On both sides of the platform assembly, a single set of vertical drive assemblies drives two sets of tablet pressing assemblies to move up and down. The horizontal drive assembly includes four sets, with two sets of horizontal drive assemblies respectively set on both sides of the vertical drive assembly, driving the tablet pressing assemblies to move horizontally in a straight line. The tablets are horizontally set on the top of the tablet pressing assembly and extend towards the platform assembly. During the stacking process, the two sets of tablet pressing assemblies on one side move synchronously vertically and horizontally under the drive of a single set of vertical drive assemblies, so as to tilt and approach the electrode assembly on the lower platform assembly from the outside of the platform assembly, from the top and outside. When stacking, the tablet pressing assembly drives the tablets to move away from the platform assembly in the opposite direction to avoid interference with the movement of the stacking mechanism.

[0064] Example 2: As Figures 9 to 13 As shown in the figure, as an embodiment of the present invention, the support assembly 41 of the present invention includes a support 411, a support plate 412, a support platform 413, and a support sleeve 414. The support 411 is horizontally arranged on the translation assembly. The support plate 412 includes two plates, which are arranged parallel to each other on the support 411 and extend upward. The support platform 413 is horizontally arranged on the two support plates 412 and has a U-shaped cross-section. The support sleeve 414 is vertically arranged in the middle of the support platform 413 and has a rectangular sleeve structure with a vertical slot C that runs vertically through the middle.

[0065] The top of the two side plates of the U-shaped groove of the support 413 is provided with a first slide rail groove A, and the side of the two side plates is provided with a second slide rail groove B; a first slide rail 415 is respectively embedded in the first slide rail groove A and the second slide rail groove B, and a first slider 416 is slidably embedded on the first slide rail 415; a second slide rail 417 is provided on the outer side of the support sleeve 414 along the vertical direction, and a second slider 418 is slidably embedded on the second slide rail 417.

[0066] Example 3: As Figures 14 to 19 As shown in the figure, as an embodiment of the present invention, the platform component 42 of the present invention includes a driving component, a bearing limiting component, and a platform component. The driving component is arranged vertically with its output end facing upward. The driving component outputs rotational power and converts the rotational power into a linear thrust along the vertical direction. The bearing limiting component is arranged on the upper part of the driving component for bearing support and providing a limiting reference surface. The platform component is arranged above the driving component and connected to the output end of the driving component. The driving component drives the platform component to move up and down. The electrode assembly 0 is horizontally stacked on the platform component.

[0067] The driving component includes a lifting motor 421, a drive shaft 422, a threaded sleeve 423, and a top sleeve 424. The lifting motor 421 is vertically positioned with its output end facing upwards. The drive shaft 422 is connected to the output end of the lifting motor 421 and is driven to rotate by the lifting motor 421. The threaded sleeve 423 is fitted onto the drive shaft 422 and is threadedly connected to the drive shaft 422. When the drive shaft 422 rotates, the rotational motion is converted into linear motion of the threaded sleeve 423 in the vertical direction through the threaded connection. The top sleeve 424 is a rectangular sleeve structure, vertically positioned above the drive shaft 422. The threaded sleeve 423 is inserted and fixed to the bottom of the top sleeve 424, driving the top sleeve 424 to move up and down.

[0068] The support assembly includes a Z-shaped support 425, a tablet pressing limit seat 426, a support seat 4210, and a vertical slide rail. The Z-shaped support 425 comprises two parts, each disposed on one side of the top sleeve 424. The upper and lower sides of each Z-shaped support 425 are vertically extending blocks, with a horizontal block between the two blocks. The bottom blocks are fixed to the top of the support sleeve 414 of the support assembly 41. The tablet pressing limit seat 426 is an H-shaped support structure, disposed on the Z-shaped support 425. Its two sides are fixed to the side walls of the Z-shaped support 425 from the outside. The upper part of the tablet pressing limit seat 426 extends vertically above the support platform component, used to limit and press the tablets during stacking via its top surface.

[0069] The support seat 4210 has an L-shaped plate structure and is located on one side of the top sleeve 424. The vertical support block of the support seat 4210 is slidably connected to the outer wall of the support sleeve via a vertical slide rail. A through groove is provided on the outer wall of the support seat 4210, and a Z-shaped support 425 is inserted into the through groove. The top of the support seat 4210 is connected to the platform component, which is used to guide and limit the platform component from one side.

[0070] The platform component includes a lifting support sleeve 427, a stacked base 428, and a side support plate 429. The lifting support sleeve 427 is a rectangular sleeve structure, and a mounting groove D is provided in the vertical direction inside the lifting support sleeve 427 for installing and fixing the top sleeve 424. The stacked base 428 is horizontally arranged on the top of the lifting support sleeve 427, and its two sides extend to the outer side of the lifting support sleeve 427 respectively. The side support plate 429 is arranged on one side of the bottom of the stacked base 428 and extends vertically downward. The side support plate is slidably connected to the outer wall of the support sleeve through a vertical slide rail.

[0071] The stage component also includes a lamination support 4211 and a support adjustment seat 4212. The lamination support 4211 is horizontally arranged on the lamination base 428. There are two support adjustment seats 4212, which are horizontally spaced on both sides of the lamination support 4211. An insertion space is formed between the two support adjustment seats 4212 to allow subsequent grippers to pass through and clamp and fix the electrode assembly 0. The two support adjustment seats 4212 are moved closer or further apart to adjust the insertion space.

[0072] The platform component of this invention includes a drive component, a load-bearing and limiting component, and a platform component. The drive component is vertically arranged and, after outputting rotational power through a lifting motor, converts the rotational power into vertical linear power through a threaded connection between a drive shaft and a threaded sleeve, which is used to drive the lifting and lowering movement of the top sleeve. The top sleeve is embedded in the mounting groove of the lifting support sleeve to drive the lifting and lowering movement of the lifting support sleeve. The top of the lifting support sleeve is a stacking base for horizontally supporting the stacking support platform arranged above it. Two support adjustment seats are spaced apart on the stacking support platform, forming an insertion space between the two support adjustment seats. During stacking... The electrode separators are placed horizontally on two support adjustment seats, which suspend them in the air. The pre-reserved insertion space allows the clamps to be inserted after stacking, so that the electrode assembly can be transported by clamping the electrode separators on the upper and lower sides. In addition, the bearing spacing can be adjusted by adjusting the relative position of the support adjustment seats to accommodate electrode assemblies of different sizes. During the stacking process, based on the continuous increase in the thickness of the electrode assembly, in order to meet the process requirements of pressing the electrode assembly in the subsequent pressing process, the lifting support sleeve driven by the lifting motor drives the stacking support to lift and lower the whole stacking support in real time to adjust the height of the electrode assembly. Furthermore, one side of the lifting support is connected to a downwardly extending side support plate, and the other side is provided with a bearing seat. The side walls of the side support plate and the bearing seat are respectively provided with through grooves. Z-shaped supports are provided in the through grooves. The lower end of the Z-shaped support is supported by the support below to maintain a constant relative height. The Z-shaped support is provided with an H-shaped tableting limit seat. The upper end of the tableting limit seat extends to the top of the stacking support platform, and the two sides are respectively provided with upwardly extending support columns. During the stacking process, the two tableting limit seats form four limiting fulcrums on both sides of the stacking support platform to provide an extreme limiting surface during the stacking and tableting process for extreme limiting of tableting.

[0073] Example 4: Figures 21 to 27 As shown in the figure, as an embodiment of the present invention, the vertical drive assembly 43 of the present invention includes a lifting motor 431, a lifting shaft 432, a lifting sleeve 433, and a guide seat 434. The lifting motor 431 is vertically arranged with its output end facing upward. The lifting shaft 432 is connected to the output end of the lifting motor 431 and is driven to rotate by the lifting motor 431. The lifting sleeve 433 is sleeved on the lifting shaft 432 and is threadedly connected to the lifting shaft 432. The rotational power of the lifting shaft 432 is converted into lifting power through the threaded connection to drive the lifting sleeve 433 to move up and down.

[0074] The guide seat 434 has a strip-shaped structure. A connecting sleeve 435 is provided in the middle of one side of the guide seat 434. The connecting sleeve 435 is connected and fixed to the lifting sleeve 433. The other side of the guide seat 434 is provided with an inwardly recessed guide groove E.

[0075] Example 5: Figures 28 to 29As shown, in one embodiment of the present invention, the transverse drive assembly 44 of the present invention includes a drive base 441, a drive magnet 442, and a transverse drive element 443. The drive base 441 is a rectangular base structure with a drive groove F in its middle and an open surface at the top of the drive groove F. The drive magnet 442 includes at least two sets, and the at least two sets of drive magnets 442 are respectively arranged in pairs on the two inner sidewalls corresponding to the drive groove F, and a sliding gap is formed between the two drive magnets 442.

[0076] The horizontal drive unit 443 is horizontally positioned on the upper part of the drive base 441. A T-shaped guide block 444 is provided at the bottom of the horizontal drive unit 443. The T-shaped guide block 444 is inserted into the drive groove F for guiding and limiting. After the horizontal drive unit 443 conducts electricity, it moves horizontally in a straight line by the magnetic force of the drive magnetic block 442.

[0077] Example 6: As Figures 30 to 32 As shown in the figure, as an embodiment of the present invention, the tableting assembly 45 of the present invention includes a connecting support 451, a tableting support 452, a connecting component, and a tableting component. The connecting support 451 is connected to the horizontal drive 443. The tableting support 452 is disposed on the connecting support 451 and extends vertically, with a mounting groove formed on one side. A vertical slide rail is provided in the mounting groove. The tableting component and the connecting component are arranged vertically at intervals and are slidably connected to the vertical slide rails respectively.

[0078] The connecting components include a first slide block 454, a roller seat 459, and a roller 4510. The first slide block 454 is slidably connected to a vertical slide rail. The roller seat 458 is disposed on the side of the first slide block 454. The roller 4510 is rotatably connected to the roller seat 458 and extends into the guide groove E of the guide seat 434, and the roller 4510 slides freely in the guide groove E.

[0079] The tableting component includes a second slide block 456, a tableting cylinder 455, a drive connecting block 457, and a tableting seat 458. The second slide block 456 is disposed above the first slide block 454 and is slidably connected to a vertical slide rail. The tableting cylinder 455 is disposed on the side wall of the first slide block 454 with its output end facing upward. The drive connecting block 457 is disposed on the side wall of the second slide block 456 and is connected to the output end of the tableting cylinder 455. The tableting cylinder 455 drives the second slide block 456 to move up and down. The tableting seat 458 is horizontally disposed on the top of the second slide block 456 and is used to fix the tablet 46.

[0080] Furthermore, in practical applications, the vertical drive assembly, horizontal drive assembly, pressing assembly, and pressing plates are located on the side of the stacking platform. A set of vertical drive assemblies is installed on each side of the stacking platform, and two sets of horizontal drive assemblies are configured on each side of each set of vertical drive assemblies. Each horizontal drive assembly is equipped with a pressing assembly, and pressing plates are horizontally connected to each pressing assembly. Overall, four sets of pressing assemblies are formed on the side of the stacking platform, with pressing plates horizontally supported on these four sets. During the stacking process, when the stacking robot picks up the material, two pressing plates on one side of the stacking platform, driven by the horizontal and vertical drive assemblies, press against the electrode assembly on the stacking platform from the outside and above. When the stacking robot stacks the electrode assembly, the two pressing plates release the electrode assembly outwards. During the next material pick-up, the two pressing plates on the other side press the electrode assembly tightly, and this alternating cycle continues until the stacking is complete. Furthermore, this invention simultaneously drives the two sets of tablet pressing assemblies on the same side of the stacking platform to move up and down using a single vertical drive assembly, ensuring the synchronization of the two tablet pressing assemblies on the same side. At the same time, the synchronous drive of the two sets of tablet pressing assemblies is achieved through a horizontally set guide seat. To avoid motion interference during the horizontal movement of the tablet pressing assemblies, an inwardly recessed guide groove is provided on the inner side of the guide seat and is movably connected to the rollers of the tablet pressing assembly in the horizontal direction. The guide groove drives the two sets of tablet pressing assemblies to move up and down in the vertical direction synchronously through the rollers. At the same time, when the horizontal drive assembly drives the tablet pressing assembly to move horizontally, the rollers slide horizontally in the guide groove, thereby avoiding motion interference in two mutually perpendicular directions.

[0081] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. A battery electrode stacking platform for alternately pressing electrode sheets or electrode separators placed on the stacking platform during the stacking process, comprising a horizontally arranged base (1), a translation component, and a stacking platform (4), wherein the translation component is disposed on the base (1) and outputs linear power in the X direction to drive the stacking platform (4) disposed thereon to move linearly, characterized in that: The stacking stage (4) includes a support assembly (41), a platform assembly (42), a vertical drive assembly (43), a horizontal drive assembly (44), a tablet pressing assembly (45), and a tablet press (46), wherein, The support assembly (41) is disposed on the translation assembly and extends upward to form a bearing plane; The platform component (42) is disposed on the support component (41) and is used to support the electrode or electrode partition during stacking; The vertical drive assembly (43) includes two sets. The two sets of vertical drive assemblies (43) are arranged on both sides of the support assembly (41) and the output end is arranged upward. After the vertical drive assembly outputs rotational power, it converts the rotational power into lifting power in the vertical direction. The lateral drive assembly (44) is disposed on both sides of the vertical drive assembly (43) and is used to output horizontal power; The tablet pressing assembly (45) is mounted on the horizontal drive assembly (44) and is driven by the horizontal drive assembly (44) to move horizontally in a straight line; the tablet pressing assembly (45) is slidably connected to the vertical drive assembly (43) in the horizontal direction and is driven by the vertical drive assembly (43) to move up and down. The pressing plate (46) is horizontally connected to the pressing plate assembly (45) and moves above the platform assembly (42) as the pressing plate assembly (45) is driven, for pressing the electrode or electrode separator when stacking.

2. The battery electrode stacking platform according to claim 1, characterized in that: The electrode assembly (0) includes a separator (01) and an electrode group (02). The separator (01) includes at least two pieces, which are vertically spaced apart. The electrode group (02) is disposed between two adjacent separators (01) and is pressed and fixed by the separators (01). The electrode group (02) is composed of multiple positive and negative electrodes stacked alternately.

3. The battery electrode stacking platform according to claim 1, characterized in that: The base (1) is a rectangular box structure with an inwardly recessed sliding space inside; the translation component includes a horizontal slide rail (2) and a linear module (3), wherein the horizontal slide rail (2) is arranged in the sliding space along the X direction; the linear module (3) is arranged in the sliding space and outputs linear power along the X direction; the stacking platform (4) is arranged on the linear module (3) and is slidably connected to the horizontal slide rail (2), and the stacking platform (4) is driven by the linear module (3) to move linearly along the X direction.

4. The battery electrode stacking platform according to claim 1, characterized in that: The platform component (42) includes a driving component, a bearing limiting component, and a platform component. The driving component is vertically arranged with its output end facing upward. The driving component outputs rotational power and converts the rotational power into a linear thrust along the vertical direction. The bearing limiting component is located on the upper part of the driving component for bearing support and providing a limiting reference surface. The platform component is located above the driving component and is connected to the output end of the driving component. The driving component drives the platform component to move up and down. The electrode assembly (0) is horizontally stacked on the platform component.

5. A battery electrode stacking platform according to claim 4, characterized in that: The driving components include a lifting motor (421), a drive shaft (422), a threaded sleeve (423), and a top sleeve (424). The lifting motor (421) is vertically positioned with its output end facing upwards. The drive shaft (422) is connected to the output end of the lifting motor (421) and rotates under the drive motor's (421) drive. The threaded sleeve (423) is fitted onto the drive shaft (422) and threadedly connected to it. When the drive shaft (422) rotates, the rotational motion is converted into linear motion of the threaded sleeve (423) in the vertical direction through the threaded connection. The top sleeve (424) is a rectangular sleeve structure. The top sleeve (424) is vertically positioned above the drive shaft (422), and the threaded sleeve (423) is inserted and fixed at the bottom of the top sleeve (424), driving the top sleeve (424) to move up and down.

6. A battery electrode stacking platform according to claim 5, characterized in that: The bearing assembly includes a Z-shaped support (425), a tablet pressing seat (426), a bearing seat (4210), and a vertical slide rail. The Z-shaped support (425) includes two Z-shaped supports (425), which are respectively disposed on both sides of the top sleeve (424). The upper and lower sides of the Z-shaped support (425) are vertically extending vertical blocks, and the two vertical blocks are horizontal blocks. The bottom vertical blocks are fixedly disposed on the top of the support sleeve (414) of the support assembly (41). The tablet pressing seat (426) is an H-shaped support structure. The tablet pressing seat (426) is disposed on the Z-shaped support (425), and its two sides are fixed from the outside to the side wall of the Z-shaped support (425). The upper part of the tablet pressing seat (426) extends vertically above the support platform component and is used to limit the pressing of the tablet by its top surface when stacking tablets.

7. A battery electrode stacking platform according to claim 5, characterized in that: The bearing seat (4210) is an L-shaped plate structure. The bearing seat (4210) is located on one side of the top sleeve (424). The vertical support block of the bearing seat (4210) is slidably connected to the outer wall of the support sleeve through a vertical slide rail. A through groove is provided on the outer wall of the bearing seat (4210), and a Z-shaped support (425) is inserted in the through groove. The top of the bearing seat (4210) is connected to the platform component, which is used to guide and limit the platform component from one side.

8. A battery electrode stacking platform according to claim 5, characterized in that: The platform component includes a lifting support sleeve (427), a stacked base (428), and a side support plate (429). The lifting support sleeve (427) is a rectangular sleeve structure. The lifting support sleeve (427) has a mounting groove (D) along the vertical direction for installing and fixing the top sleeve (424). The stacked base (428) is horizontally arranged on the top of the lifting support sleeve (427) and extends to the outer side of the lifting support sleeve (427) on both sides. The side support plate (429) is arranged on one side of the bottom of the stacked base (428) and extends vertically downward. The side support plate is slidably connected to the outer wall of the support sleeve by a vertical slide rail.

9. A battery electrode stacking platform according to claim 1, characterized in that: The vertical drive assembly (43) includes a lifting motor (431), a lifting shaft (432), a lifting sleeve (433), and a guide seat (434). The lifting motor (431) is vertically arranged with its output end facing upward. The lifting shaft (432) is connected to the output end of the lifting motor (431) and rotates under the drive of the lifting motor (431). The lifting sleeve (433) is sleeved on the lifting shaft (432) and is threadedly connected to the lifting shaft (432). The rotational power of the lifting shaft (432) is converted into lifting power through the threaded connection to drive the lifting sleeve (433) to move up and down.

10. A battery electrode stacking platform according to claim 9, characterized in that: The guide seat (434) is a strip structure. A connecting sleeve (435) is provided in the middle of one side of the guide seat (434), and the connecting sleeve (435) is connected and fixed on the lifting sleeve (433). The other side of the guide seat (434) is provided with an inwardly recessed guide groove (E).

11. A battery electrode stacking platform according to claim 9, characterized in that: The transverse drive assembly (44) includes a drive base (441), drive magnetic blocks (442), and transverse drive unit (443). The drive base (441) is a rectangular base structure with a drive groove (F) in the middle and an open surface at the top of the drive groove (F). The drive magnetic blocks (442) include at least two sets, and the at least two sets of drive magnetic blocks (442) are respectively arranged in pairs on the two inner sidewalls corresponding to the drive groove (F), and a sliding gap is formed between the two drive magnetic blocks (442).

12. A battery electrode stacking platform according to claim 11, characterized in that: The horizontal drive unit (443) is horizontally positioned on the upper part of the drive base (441). A T-shaped guide block (444) is provided at the bottom of the horizontal drive unit (443). The T-shaped guide block (444) is inserted into the drive groove (F) for guiding and limiting. After the horizontal drive unit (443) becomes conductive, it moves horizontally in a straight line by the magnetic force of the drive magnetic block (442).

13. A battery electrode stacking platform according to claim 12, characterized in that: The tableting assembly (45) includes a connecting support (451), a tableting support (452), a connecting component, and a tableting component. The connecting support (451) is connected to the horizontal drive (443). The tableting support (452) is disposed on the connecting support (451) and extends vertically, with a mounting groove formed on one side. A vertical slide rail is provided in the mounting groove. The tableting component and the connecting component are arranged at intervals above and below each other and are slidably connected to the vertical slide rails.

14. A battery electrode stacking platform according to claim 13, characterized in that: The connecting components include a first slide (454), a roller seat (459), and a roller (4510). The first slide (454) is slidably connected to a vertical slide rail. The roller seat (458) is disposed on the side of the first slide (454). The roller (4510) is rotatably connected to the roller seat (458) and extends into the guide groove (E) of the guide seat (434). The roller (4510) slides freely in the guide groove (E).

15. A battery electrode stacking platform according to claim 14, characterized in that: The tableting component includes a second slide (456), a tableting cylinder (455), a drive connecting block (457), and a tableting seat (458). The second slide (456) is located above the first slide (454) and is slidably connected to a vertical slide rail. The tableting cylinder (455) is located on the side wall of the first slide (454) with its output end facing upward. The drive connecting block (457) is located on the side wall of the second slide (456) and is connected to the output end of the tableting cylinder (455). The tableting cylinder (455) drives the second slide (456) to move up and down. The tableting seat (458) is horizontally located on the top of the second slide (456) and is used to fix the tablet (46).

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