Pole piece lamination workbench

Abstract

The utility model provides a pole piece lamination workbench which comprises a lamination table plate, a lamination table supporting seat and two pressing knife supporting plates, the lamination table plate and the pressing knife supporting plates are adjustably assembled on the lamination table supporting seat in the longitudinal direction, and the lamination table plate and the lamination table supporting seat are located between the two pressing knife supporting plates; two cutter pressing seats are movably assembled on the cutter pressing supporting plate and can be close to or away from each other, and cutter pressing plates are adjustably assembled on the cutter pressing seats in the longitudinal direction. When in use, the positions of the lamination bedplate and the pressing knife support plate can be longitudinally adjusted in real time so as to adapt to the change of the thickness of a battery cell in the lamination process, so that the height of the top surface of the battery cell is kept consistent, and the path of a manipulator for grabbing a positive pole piece and a negative pole piece is fixed; error accumulation caused by continuous adjustment of the position of the manipulator in the traditional process is avoided, and the lamination quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an electrode stacking worktable. Background Technology

[0002] The battery stacking process involves stacking positive and negative electrode sheets, along with a separator, alternately to form a battery cell. Conventionally, after the battery electrode rolls are unwound, they are cut to specifications to form the required positive and negative electrode sheets, which are then picked up and transported to the stacking station by a robotic arm. However, as the number of stacked layers increases, the thickness of the battery cell also increases. This necessitates changes in the travel path of the robotic arm picking up the positive and negative electrode sheets each time, which can easily lead to accumulated errors and affect the stacking quality. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery electrode cutting and stacking equipment, which can adjust the height of the stacking platform according to the thickness of the battery cell stack, avoiding the accumulation of errors caused by the continuous adjustment of the position of the robot in the traditional process, and thus improving the stacking quality.

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

[0005] An electrode stacking worktable includes a stacking table, a stacking support base, and a pressure knife support plate. The stacking table and the pressure knife support plate are both longitudinally adjustable and mounted on the stacking support base. There are two pressure knife support plates, and the stacking table and the stacking support base are located between the two pressure knife support plates. Two pressure knife seats are movably mounted on the pressure knife support plate. The two pressure knife seats can move closer to or further away from each other. A pressure knife plate is longitudinally adjustable and mounted on the pressure knife seat.

[0006] According to a preferred embodiment, the stacking support includes a base plate, a long longitudinal plate, and a short longitudinal plate, wherein the long longitudinal plate and the short longitudinal plate are both fixedly installed on the base plate, the two short longitudinal plates are respectively disposed at the two ends of the long longitudinal plate along its length, the stacking platform is assembled on the long longitudinal plate, and the pressure knife support plate is assembled on the short longitudinal plate.

[0007] According to a preferred embodiment, the long longitudinal plate and the short longitudinal plate form an I-shaped structure, the pressure knife support plate is slidably installed on the short longitudinal plate, and the stacking plate is slidably installed on the long longitudinal plate.

[0008] According to a preferred embodiment, the stacked plate is L-shaped, with one part slidably connected to the long longitudinal plate and the other part located at the top of the long longitudinal plate.

[0009] According to a preferred embodiment, a tool holder is slidably disposed on the tool holder, and the tool holder is adjustablely disposed on the tool holder.

[0010] According to a preferred embodiment, two tool holders are arranged in the length direction on the same tool pressing support plate. A timing belt is arranged on the tool pressing support plate, one of the tool holders is engaged with the upper side of the timing belt, and the other tool holder is engaged with the lower side of the timing belt.

[0011] According to a preferred embodiment, the electrode stacking worktable further includes a frame and side frames. The side frames are fixedly installed on the frame, and there are two side frames. A support box is provided at the bottom of the stacking support base. The support box is located between the two side frames and is slidably connected to the side frames in the longitudinal direction.

[0012] According to a preferred embodiment, the top of the stacking plate is provided with a plurality of clearance notches, and the plurality of clearance notches are spaced apart.

[0013] According to a preferred embodiment, the stacking platform is provided with negative pressure holes.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] The stacking platform and pressure knife support plate of this invention can both move longitudinally relative to the stacking support base. That is, during the stacking process, the stacking platform and pressure knife support plate can adjust their positions in real time in the longitudinal direction. This can adapt to the changes in cell thickness during the stacking process, so that the height of the top surface of the cell remains consistent. This ensures that the path of the robot arm that picks up the positive and negative electrode sheets is fixed, avoiding the accumulation of errors caused by the continuous adjustment of the robot arm position in the traditional process, which is conducive to improving the stacking quality. Attached Figure Description

[0016] 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.

[0017] Figure 1 A three-dimensional structural schematic diagram of the electrode stacking worktable provided in an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the assembly structure of the laminating platform and the pressure knife support plate provided in an embodiment of this utility model;

[0019] Figure 3 for Figure 2 The first exploded structural diagram of the structure shown;

[0020] Figure 4 for Figure 2 The second exploded structure diagram of the structure shown;

[0021] Figure 5 A robotic arm designed to assist in the transfer of battery cells using a stacking platform.

[0022] Icons: 11-Stacking platform, 111-Avoidance notch, 12-Stacking platform support, 121-Second fixed base plate, 122-Long longitudinal plate, 1221-First transmission screw, 123-Short longitudinal plate, 13-Pressure tool support plate, 131-Pressure tool plate, 132-Synchronous belt, 133-Tool holder, 14-Support box, 15-Side frame, 16-Second transmission screw. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please refer to Figures 1 to 4A stacking table for electrodes includes a stacking platform 11, a stacking support base 12, and a pressure knife support plate 13. The stacking platform 11 and the pressure knife support plate 13 are both longitudinally adjustable and mounted on the stacking support base 12. There are two pressure knife support plates 13, with the stacking platform 11 and the stacking support base 12 positioned between the two pressure knife support plates 13. Two pressure knife seats are movably mounted on the pressure knife support plate 13, and the two pressure knife seats can move closer to or further away from each other. A pressure knife plate 131 is longitudinally adjustable and mounted on each pressure knife seat. In this embodiment, the stacking platform 11 has negative pressure holes, which can adsorb the bottom separator during the stacking process. The pressure knife plate 131 is used to press the cell structure composed of a positive electrode, a negative electrode, and a separator during the stacking process. During use, both the stacking platform 11 and the pressure knife support plate 13 can move longitudinally relative to the stacking support base 12. That is, during the stacking process, both the stacking platform 11 and the pressure knife support plate 13 can adjust their positions in real time in the longitudinal direction. This allows them to adapt to changes in the thickness of the battery cell during the stacking process, ensuring that the height of the top surface of the battery cell remains consistent. This also fixes the path of the robotic arm that grips the positive and negative electrode sheets, avoiding the accumulation of errors caused by the continuous adjustment of the robotic arm position in traditional processes, which is beneficial to improving the stacking quality.

[0027] Furthermore, such as Figure 3 and Figure 4 As shown, the stacking support base 12 includes a second fixed base plate 121, a long longitudinal plate 122, and a short longitudinal plate 123. The long longitudinal plate 122 and the short longitudinal plate 123 are both fixedly installed on the second fixed base plate 121. Two short longitudinal plates 123 are correspondingly located at the two ends of the long longitudinal plate 122 along its length. The stacking platform 11 is assembled on the long longitudinal plate 122, and the pressure knife support plate 13 is assembled on the short longitudinal plate 123. The long longitudinal plate 122 and the short longitudinal plate 123 mounted on the second fixed base plate 121 form an I-shaped structure. The pressure knife support plate 13 is slidably mounted on the short longitudinal plate 123 along the longitudinal direction via a slide rail slider assembly, and the stacking platform 11 is slidably mounted on the long longitudinal plate 122 along the longitudinal direction via the slide rail slider assembly. Specifically, a cylinder or a transmission screw is mounted on the long longitudinal plate 122 to drive the pressure knife support plate 13 and the stacking platform 11 to move longitudinally, thereby continuously adjusting the height of the pressure knife plate 131 and the stacking platform 11 during the stacking process. In this embodiment, by means of... Figure 3 and Figure 4 The first transmission screw 1221 shown drives the pressure knife support plate 13 and the stacking platform 11 to move longitudinally. In this embodiment, the stacking platform 11 is L-shaped, as shown... Figure 4 As shown, one part is slidably connected to the longitudinal plate 122, and the other part is located on the top of the longitudinal plate 122 to support the separator and battery electrodes (positive electrode and negative electrode).

[0028] Furthermore, a tool holder 133 is slidably mounted on the pressure support plate 13 along its length direction via a slide rail slider assembly, and a pressure plate 131 is adjustablely mounted on the tool holder 133 via a cylinder. Optionally, in this embodiment, the tool holder 133 is driven by a timing belt 132 mounted on the pressure support plate 13 or by a cylinder to adjust the position of the pressure plate 131 along the length of the electrode sheet, thereby adapting to the processing of electrode sheets of different specifications. The timing belt 132 driving the tool holder 133 is a conventional technique and will not be described in detail here. It should be noted that, as... Figure 3 As shown, on the same pressure support plate 13, there are two tool holders 133 along its length, one of which is engaged with the upper side of the timing belt 132 and the other is engaged with the lower side of the timing belt 132, so that the two tool holders 133 can move closer or further away synchronously.

[0029] like Figure 1 As shown, in this embodiment, the electrode stacking stage further includes a frame (not shown) and two side frames 15 disposed on the frame. A support box 14 is disposed at the bottom of the stacking stage support base 12, and the support box 14 is located between the two side frames 15 and is slidably connected to the side frames 15 longitudinally via a slide rail slider assembly. Further, a second transmission screw 16 is disposed on one of the side frames 15, and the support box 14 is threadedly connected to the second transmission screw 16 and driven by the second transmission screw 16 to move longitudinally. This configuration allows the overall height of the electrode stacking stage to be raised or lowered longitudinally.

[0030] The top of the stacking platform 11 is provided with several clearance notches 111, which are spaced apart. These clearance notches 111 facilitate the robotic arm's gripping of the battery cells on the stacking platform 11. Specifically, in use, the robotic arm has a gripping part corresponding to the clearance notch 111. Part of the gripping part can be inserted into the clearance notch 111, and the other part of the gripping part clamps the battery cell from bottom to top. Figure 5 As shown, this is a robotic arm that works to avoid gap 111 and grasp a battery cell.

[0031] 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 pole piece lamination workbench, characterized by, The electrode stacking worktable includes a stacking table, a stacking support base, and a pressure knife support plate. The stacking table and the pressure knife support plate are both longitudinally adjustable and mounted on the stacking support base. There are two pressure knife support plates, and the stacking table and the stacking support base are located between the two pressure knife support plates. Two pressure seats are movably mounted on the pressure support plate. The two pressure seats can move closer to or further away from each other. A pressure plate is adjustablely mounted on the pressure seat along the longitudinal direction.

2. The pole piece lamination workbench of claim 1, wherein, The stacking support includes a base plate, a long longitudinal plate, and a short longitudinal plate. The long longitudinal plate and the short longitudinal plate are both fixedly installed on the base plate. The two short longitudinal plates are respectively arranged at the two ends of the long longitudinal plate along its length. The stacking platform is assembled on the long longitudinal plate, and the pressure knife support plate is assembled on the short longitudinal plate.

3. The pole piece lamination workbench of claim 2, wherein, The long and short longitudinal plates form an I-shaped structure, the pressure knife support plate is slidably installed on the short longitudinal plate, and the stacking plate is slidably installed on the long longitudinal plate.

4. The pole piece lamination workbench of claim 2, wherein, The stacked plate is L-shaped, with one part slidably connected to the long longitudinal plate and the other part located on top of the long longitudinal plate.

5. The pole piece lamination workbench of claim 1, wherein, A tool holder is slidably mounted on the tool holder, and the tool holder is adjustablely mounted on the tool holder.

6. The pole piece lamination workbench of claim 5, wherein, On the same pressure support plate, two tool holders are arranged in the length direction. A timing belt is arranged on the pressure support plate, one of the tool holders is engaged with the upper side of the timing belt, and the other tool holder is engaged with the lower side of the timing belt.

7. The pole piece lamination workbench of claim 1, wherein, The electrode stacking worktable also includes a frame and side frames. The side frames are fixedly installed on the frame. There are two side frames. The bottom of the stacking support is provided with a support box. The support box is located between the two side frames and is slidably connected to the side frames in the longitudinal direction.

8. The pole piece lamination workbench of claim 1, wherein, The top of the stacking plate is provided with a plurality of clearance notches, and the plurality of clearance notches are spaced apart.

9. The pole piece lamination workbench of claim 1, wherein, The lamination platform is equipped with negative pressure holes.

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