A rotating core assembly

Abstract

The utility model provides a kind of rotating core combining mechanism, belong to electric core assembly field, including first supporting plate and second supporting plate, first supporting plate is located on clamping assembly, second supporting plate is located on positioning assembly, clamping assembly is connected to rotating assembly, rotating assembly action drives first supporting plate to rotate to second supporting plate above;First supporting plate is used for first electric core, second supporting plate is used for placing second electric core, when needing to combine the core of first electric core and second electric core, clamping assembly is clamped after first electric core, rotating assembly action drives first supporting plate and first electric core to rotate to second supporting plate above, first electric core and second electric core realize stacking, the first electric core and second electric core of stacking are positioned by positioning assembly, the core combining of two electric cores is completed, without multiple handling electric core, to reduce the damage to electric core pole piece or diaphragm.

Description

Technical Field

[0001] This utility model relates to the field of battery cell assembly technology, and in particular to a rotating core-joining mechanism. Background Technology

[0002] In the production process of some battery models, two cells need to be combined into one cell. After the cells are combined, they are then fixed with adhesive. Therefore, a mechanical structure is needed to combine the cells.

[0003] In existing technologies, two methods are typically used: (1) horizontal handling and stacking to complete core assembly, such as... Figure 1 As shown, this process requires cell 100a of the two cells to be rotated 180° first, and then the rotated cell 100a is transported onto cell 200a by a clamp to form the combined cell 300. (2) The tab welding requires two machines to produce two types of single cells, A and B, respectively, and then the two types of cells are transported to a station by a conveyor line for stacking and combining. This scheme requires planning two tab welding machines for production, which increases the equipment planning cost. In the above two methods, the battery needs to be handled multiple times. Since the cells are easily damaged during handling, the electrode or separator is easily broken, resulting in unqualified cell quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to solve the problem of battery cell damage caused by multiple handling during the battery cell assembly process.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution: a rotating core-closing mechanism, including a first support plate and a second support plate, the first support plate being located on a clamping assembly, the second support plate being located on a positioning assembly, the clamping assembly being connected to a rotating assembly, and the rotating assembly being activated to rotate the first support plate to above the second support plate.

[0006] Beneficial effects: The first tray is used for the first battery cell, and the second tray is used for the second battery cell. When the first and second battery cells need to be combined, the clamping component clamps the first battery cell, and the rotating component rotates the first tray and the first battery cell to the top of the second tray, so that the first and second battery cells are stacked. The positioning component positions the stacked first and second battery cells, thus completing the combination of the two battery cells. There is no need to move the battery cells multiple times, which reduces damage to the battery cell electrodes or separators.

[0007] Preferably, the clamping assembly includes a movable plate, a first cylinder, a gripper, and a second cylinder. The first cylinder and the second cylinder are both located on the movable plate. The gripper is slidably connected to the first cylinder and is evenly distributed on both sides of the first support plate. The movable plate is slidably connected to the guide post. The guide post is fixed to the first support plate by a first connecting plate. The first connecting plate is connected to the rotating assembly.

[0008] Beneficial effects: The first cylinder and grippers clamp the battery cells on the first tray. The second cylinder extends and retracts to move the moving plate, which in turn moves the grippers toward the battery cells, pressing them down and ensuring that the battery cells on the first tray remain stationary while rotating.

[0009] Preferably, the rotating assembly includes a motor and a rotating shaft. The output end of the motor is connected to a first synchronous pulley, the first synchronous pulley is connected to a second synchronous pulley via a synchronous belt, the second synchronous pulley is connected to one end of the rotating shaft, and a first connecting plate is fixed on the rotating shaft.

[0010] Preferably, the positioning assembly includes a third cylinder, a second connecting plate, a first push plate, and a second push plate. The two ends of the second support plate in the length direction are respectively fixedly connected to the first push plate through a first sliding assembly. The two sides of the second support plate in the width direction are respectively fixedly connected to the second push plate through a second sliding assembly. The second push plate is fixed on the second sliding assembly through a second connecting block. The second connecting block is slidably connected to the second connecting plate. The third cylinder is connected to the second connecting plate.

[0011] Beneficial effect: The first and second push plates enable positioning of the stacked battery cells in all directions.

[0012] Preferably, the first sliding component includes a first slider and a first slide rail, and the second sliding component includes a second slider and a second slide rail. The first slide rail and the second slide rail are respectively fixed to the bottom of the second support plate. The first slider is fixed to the first push plate by a first connecting block, and the two second sliders on the second slide rail are respectively fixed to a second connecting block.

[0013] Preferably, the second connecting block is slidably connected to the second connecting plate via a cam, and the second connecting plate has two through slots in the shape of the number eight, with the cam located in the through slots.

[0014] Beneficial effect: By setting an eight-shaped through groove on the second connecting plate, when the first push plate moves to the left or right, it will drive the second connecting block to move along the through groove on the second connecting plate, and then drive the second connecting plate on the left to move to the right or left along the through groove. The movement trajectory of the second connecting block is oblique and towards the center of the second support plate.

[0015] Preferably, the first push plate is U-shaped with the U-shaped opening facing the center of the second support plate, and the second push plate is L-shaped with a protective pad at the end of the second push plate facing the center of the second support plate.

[0016] Beneficial effects: The protective pad can protect the diaphragm on the side of the battery cell and prevent the diaphragm from being scratched during the movement of the battery cell.

[0017] Preferably, the mechanism further includes an electrode protection assembly, which includes a fourth cylinder and an electrode protection plate. The fourth cylinder is fixed to the second support plate by a connector, and the electrode protection plate is fixed to the fourth cylinder.

[0018] Beneficial effect: The fourth cylinder, carrying the electrode tab protection plate, extends and retracts between the electrodes of the two stacked cells, which can prevent the electrode tabs of the rotated cells from drooping, thus ensuring that the electrode tabs will not be damaged after the two cells are joined together.

[0019] Preferably, the second tray includes a base, the upper surface of which is connected to the battery cell tray via a first fixing block, and the two ends of the base along its length are respectively fixedly connected to a second fixing block. The battery cell tray has multiple through holes, and plastic universal balls are placed inside the through holes.

[0020] Beneficial effect: During the positioning process of two battery cells, the two stacked battery cells move on the plastic universal ball, which can realize the positioning adjustment of the two battery cells.

[0021] Preferably, the mechanism further includes a support assembly, which includes a base, a bottom plate, and a third connecting plate. The second support plate is fixed on the bottom plate, the bottom plate is fixed on the base by a column, and both ends of the rotating shaft are fixed on the bottom plate by the third connecting plate.

[0022] The advantages of this invention are as follows: The rotating core-joining mechanism of this invention can be combined with the tab welding mechanism and the adhesive-applying mechanism to form a set of equipment, eliminating the need to plan two sets of tab welding equipment, thus reducing the overall design cost. Compared with the existing technology that uses a cell rotating fixture to rotate a cell first and then uses grippers to transport and stack the cells, this invention can reduce the number of times the cells are handled, minimize damage to the cell separator and electrode sheets during the handling process, and ensure the quality of the cell production process. Attached Figure Description

[0023] Figure 1 A schematic diagram illustrating the horizontal transport and stacking process for core assembly as provided in existing technologies;

[0024] Figure 2 A perspective view of the rotating core-closing mechanism provided in an embodiment of this utility model;

[0025] Figure 3 A perspective view of the rotating core-closing mechanism provided in an embodiment of this utility model;

[0026] Figure 4 A top view of the rotating core-joining mechanism provided in an embodiment of this utility model;

[0027] Figure 5 A side view of the rotating core-joining mechanism provided in an embodiment of this utility model;

[0028] Figure 6 A side view of the rotating core-closing mechanism provided in an embodiment of this utility model;

[0029] Figure 7 A schematic diagram of the clamping mechanism in the rotating core-closing mechanism provided in this embodiment of the utility model;

[0030] Figure 8 A schematic diagram from another perspective of the clamping mechanism in the rotating core-closing mechanism provided in this embodiment of the utility model;

[0031] Figure 9 A schematic diagram showing the positions of the first cylinder and the gripper in the rotating core-closing mechanism provided in this embodiment of the utility model;

[0032] Figure 10 A schematic diagram of the rotating mechanism in the rotating core-closing mechanism provided in the embodiment of this utility model;

[0033] Figure 11 A schematic diagram of the positioning mechanism in the rotating core-closing mechanism provided in this embodiment of the utility model;

[0034] Figure 12 A schematic diagram of the second support plate in the rotating core-closing mechanism provided in an embodiment of this utility model;

[0035] Figure 13 A schematic diagram of the second connecting plate in the rotating core-closing mechanism provided in an embodiment of this utility model;

[0036] Figure 14 A schematic diagram showing the positions of the second connecting plate and the second connecting block in the rotating core-joining mechanism provided in this embodiment of the utility model;

[0037] Figure 15 This is a schematic diagram of the positions of the second connecting plate and the second connecting block in the rotating core-joining mechanism provided in an embodiment of the present utility model.

[0038] Figure 16 A schematic diagram of the first push plate in the rotating core-closing mechanism provided in an embodiment of this utility model;

[0039] In the diagram: 10 Clamping assembly, 11 Moving plate, 12 First cylinder, 13 Gripper, 14 Second cylinder, 15 Guide post, 16 First connecting plate, 20 Rotating assembly, 21 Motor, 22 First synchronous pulley, 23 Synchronous belt, 24 Second synchronous pulley, 25 Rotating shaft, 26 Mounting plate, 30 Positioning assembly, 31 Third cylinder, 32 Second connecting plate, 321 Through slot, 331 First slider, 332 First slide rail, 34 First connecting block, 35 First push plate, 36 Second connecting block, 371 Second slider, 3 72 Second slide rail, 38 Second push plate, 381 Protective pad, 39 Cam, 40 Electrode protection assembly, 41 Fourth cylinder, 42 Connector, 43 Electrode protection plate, 50 Support assembly, 51 Base, 52 Base plate, 53 Column, 54 Third connecting plate, 55 Reinforcing plate, 100 First battery cell, 101 First support plate, 200 Second battery cell, 201 Second support plate, 2011 Base, 2012 First fixing block, 2013 Battery cell support plate, 2014 Plastic universal ball, 2015 Second fixing block. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model are described clearly and completely below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0041] like Figure 2-6 As shown, this embodiment provides a rotating core-combining mechanism, including a first tray 101 and a second tray 201. The first tray 101 is used to place the first battery cell 100, and the second tray 201 is used to place the second battery cell 200.

[0042] The first pallet 101 is located on the clamping assembly 10, see Figures 7 to 9The clamping assembly 10 includes a movable plate 11, a first cylinder 12, grippers 13, and a second cylinder 14. Both the first cylinder 12 and the second cylinder 14 are located on the movable plate 11. One or more first cylinders 12 can be provided; in this embodiment, there are two first cylinders 12. The movable plate 11 is rectangular, and the two first cylinders 12 are evenly distributed along the length of the movable plate 11. The second cylinder 14 is fixed to the bottom of the movable plate 11. The grippers 13 are slidably connected to the first cylinders 12 and evenly distributed on both sides of the first support plate 101. The grippers 13 are U-shaped, with the U-shaped opening facing the position on the first support plate 101 where the battery cell is placed. The movable plate 11 is slidably connected to the guide post 15, and the guide post 15 is fixed to the first support plate 101 via a first connecting plate 16. The first connecting plate 16 and the first support plate 101 can be fixedly connected by a bolt assembly. The first connecting plate 16 is L-shaped. One end of the first connecting plate 16 is fixedly connected to one end of the guide post 15, and the other end of the first connecting plate 16 is connected to the rotating assembly 20 through a bolt assembly. The guide post 15 is a linear guide post, and the other end of the guide post 15 is connected to a linear bearing.

[0043] After the first battery cell 100 is placed on the first tray 101, the first cylinder 12 is activated to drive the two grippers 13 to move towards each other. After they are in place, the second cylinder 14 is activated to drive the moving plate 11 to slide down along the guide post 15, thereby driving the first cylinder 12 and the grippers 13 to move down, so that the first battery cell 100 can be clamped on the first tray 101.

[0044] The second tray 201 is located on the positioning assembly 30, see Figure 11 The positioning component 30 includes a third cylinder 31, a second connecting plate 32, a first push plate 35, and a second push plate 38. In this embodiment, the second support plate 201 is rectangular. The two ends of the second support plate 201 in the length direction are respectively fixedly connected to the first push plate 35 through the first sliding component. The two sides of the second support plate 201 in the width direction are respectively fixedly connected to the second push plate 38 through the second sliding component. The first sliding component includes a first slider 331 and a first slide rail 332. The second sliding component includes a second slider 371 and a second slide rail 372. The first slide rail 332 and the second slide rail 372 are respectively fixed to the bottom of the second support plate 201. The first slider 331 is fixed to the first push plate 35 through the first connecting block 34. The two second sliders 371 on the second slide rail 372 are respectively fixed to a second connecting block 36. The second push plate 38 is fixed to the second slider 371 of the second sliding component through the second connecting block 36. The second connecting block 36 is slidably connected to the second connecting plate 32. The third cylinder 31 is connected to the second connecting plate 32.

[0045] See Figures 13 to 15The second connecting block 36 is slidably connected to the second connecting plate 32 via a cam 39. The second connecting plate 32 has two through slots 321 in a figure-eight shape, and the cam 39 is located in the through slots 321. The ends of the two through slots 321 that are farther apart are close to the center of the second support plate 201, and the ends of the two through slots 321 that are closer together are far away from the center of the second support plate 201.

[0046] See Figure 3 In the figure, X represents a horizontal extension along the left and right sides, and Y represents a horizontal extension along the front and back sides. The X direction is perpendicular to the Y direction. The length direction of the first support plate 101 and the second support plate 201 is parallel to the X direction, and the width direction of the first support plate 101 and the second support plate 201 is parallel to the Y direction. The first slider 331 slides along the X direction on the first slide rail 332, and the second slider 371 slides along the Y direction on the second slide rail 372.

[0047] After the first and second battery cells are stacked, the third cylinder 31 is activated, causing the second connecting plate 32 on the right to move to the left. Since the second connecting plate 32 is fixedly connected to the first slider 331, it causes the first slider 331 to slide to the left on the first slide rail 332, while simultaneously moving the first push plate 35 to the left. During the movement of the first push plate 35 to the left, it causes the second connecting block 36 to move along the through groove 321 on the second connecting plate 32, which in turn causes the second connecting plate 32 on the left to move to the right along the through groove 321. Since the through groove 321 is V-shaped, the movement trajectory of the second connecting block 36 is diagonal and towards the center of the second support plate 201. In this embodiment, there are two second connecting blocks 36, located on both sides of the width direction of the second tray 201. Each second connecting block 36 is connected to the second slide rail 372 by at least one second slider 371. In this embodiment, there are four second sliders 371 and two second slide rails 372. The two second slide rails 372 are evenly distributed at the bottom of the second tray 201. Each second slide rail 372 has two second sliders 371. The two second sliders 371 on the same second slide rail 371 are respectively connected to one second connecting block 36.

[0048] See Figure 16 The first push plate 35 is U-shaped with the U-shaped opening facing the center of the second support plate 201. The second push plate 38 is L-shaped with a protective pad 381 at one end of the second push plate 38 facing the center of the second support plate 201. When the first battery cell 100 and the second battery cell 200 are positioned together, the protective pad 381 can protect the diaphragm on the side of the battery cell.

[0049] The clamping assembly 10 is connected to the rotating assembly 20. The rotating assembly 20 rotates the first tray 101 to a position above the second tray 201. After rotating 180 degrees, the first battery cell 100 is directly above the second battery cell 200. When the first cylinder 12 is activated and drives the gripper 13 to move in the opposite direction, the first battery cell 100 will fall onto the second battery cell 200, completing the cell bonding.

[0050] See Figure 10 The rotating assembly 20 includes a motor 21 and a rotating shaft 25. The motor 21 is a servo motor. The output end of the motor 21 is connected to a first synchronous pulley 22. The first synchronous pulley 22 is connected to a second synchronous pulley 24 via a synchronous belt 23. The second synchronous pulley 24 is connected to one end of the rotating shaft 25. The first connecting plate 16 is fixed on the rotating shaft 25.

[0051] See Figure 11 The rotating core-joining mechanism also includes an electrode tab protection assembly 40, which includes a fourth cylinder 41 and an electrode tab protection plate 43. The fourth cylinder 41 is fixed to the second support plate 201 by a connector 42, and the electrode tab protection plate 43 is fixed to the fourth cylinder 41. The electrode tab protection plate 43 is located above the first push plate 35.

[0052] See Figure 12 The second support plate 201 includes a base 2011. The upper surface of the base 2011 is connected to the cell support plate 2013 through a first fixing block 2012. The two ends of the base 2011 in the length direction are respectively fixedly connected to second fixing blocks 2015. The cell support plate 2013 has multiple through holes, and plastic universal balls 2014 are placed in the through holes. During the positioning of the stacked first and second cells, the two cells roll on the plastic universal balls 2014, which can realize the positioning adjustment of the two cells.

[0053] See also Figure 10 The rotating core mechanism also includes a support assembly 50, which includes a base 51, a base plate 52, and a third connecting plate 54. The second support plate 201 is fixed on the base plate 52, and the base plate 51 is fixed on the base plate 51 by a column 53. The two ends of the rotating shaft 25 are respectively fixed on the base plate 52 by the third connecting plate 54. The motor 21 is fixed to the bottom of the base plate 52 by a mounting plate 26. A reinforcing plate 55 is also fixedly connected between the two third connecting plates 54.

[0054] Working principle: When it is necessary to combine the first battery cell 100 and the second battery cell 200, in actual operation, the two battery cells can be gripped at the same time by mechanical grippers. The first battery cell 100 is placed on the first tray 101 and the second battery cell 200 is placed on the second tray 201. After the two battery cells are placed, the mechanical grippers move away from the combining mechanism.

[0055] After the mechanical grippers move away from the core-combining mechanism, the first cylinder 12 retracts, causing the two grippers 13 to move towards each other. Once in position, the grippers 13 clamp the first battery cell 100. The second cylinder 14 extends and retracts, causing the moving plate 11 to slide downwards along the guide post 15, thereby moving the first cylinder 12 and grippers 13 downwards to press the first battery cell 100 firmly, ensuring that the first battery cell 100 remains stationary during rotation. After clamping the first battery cell 100 is complete, the motor 21 starts, and the first synchronous pulley 22 rotates, driving the second synchronous pulley 24 to rotate via the synchronous belt 23, which in turn drives the rotating shaft 25 to rotate. The rotating shaft 25 rotates 180 degrees together with the first support plate 101 and the first battery cell 100. Then, the fourth cylinder 41, carrying the tab protection plate 43, extends and retracts between the tabs of the first battery cell 100 and the second battery cell 200, preventing the tabs of the first battery cell 100 from sagging after rotation, thus ensuring that the tabs are not damaged after the two batteries are combined.

[0056] After the rotating shaft 25 rotates the first battery cell 100 into position, the first cylinder 12 opens the gripper 13, completing the stacking of the first battery cell 100 and the second battery cell 200. At this time, the motor 21 starts, the rotating shaft 25 rotates 180 degrees in the opposite direction, and the second cylinder 14 retracts, causing the first cylinder 12 and the gripper 13 to rise and return to their original position. At this time, the third cylinder 31 extends to the left, and the first push plate 35 and the second push plate 38 move towards the second battery cell 200, positioning the first battery cell 100 and the second battery cell 200. During the positioning process, the two stacked battery cells move on the plastic universal ball 2014, and the protective pad 381 protects the diaphragm on the side of the battery cell, preventing the diaphragm from being scratched during the movement of the battery cell. After the first battery cell 100 and the second battery cell 200 are combined, the third cylinder 31 moves to bring the first push plate 35 and the second push plate 38 back to their original positions, and the fourth cylinder 41 moves to bring the electrode tab protection plate 43 back to its original position, waiting for the mechanical gripper to grab the two combined battery cells and move them to the next station for adhesive application.

[0057] The rotating core-joining mechanism of this utility model can be combined with the tab welding mechanism and the adhesive-applying mechanism to form a set of equipment. Specifically, a rotating core-joining station can be added directly behind the tab welding mechanism, and the rotating core-joining mechanism of this utility model can be set at this station. There is no need to plan two sets of tab welding equipment, which reduces the overall design cost from a planning perspective. Compared with the existing technology of using a cell rotating fixture to rotate a cell first and then using grippers to transport and stack the cells, this utility model can reduce the number of times the cells are handled, minimize the damage to the cell separator and electrode sheets caused by the cells during the handling process, and ensure the quality of the cell production process.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rotating core-closing mechanism, characterized in that: It includes a first tray and a second tray. The first tray is located on a clamping assembly, and the second tray is located on a positioning assembly. The clamping assembly is connected to a rotating assembly. The rotating assembly rotates the first tray to above the second tray.

2. The rotating core-joining mechanism according to claim 1, characterized in that: The clamping assembly includes a movable plate, a first cylinder, grippers, and a second cylinder. The first cylinder and the second cylinder are both located on the movable plate. The grippers are slidably connected to the first cylinder and are evenly distributed on both sides of the first support plate. The movable plate is slidably connected to the guide post. The guide post is fixed to the first support plate by a first connecting plate. The first connecting plate is connected to the rotating assembly.

3. The rotating core-joining mechanism according to claim 1, characterized in that: The rotating assembly includes a motor and a rotating shaft. The output end of the motor is connected to a first synchronous pulley, which is connected to a second synchronous pulley via a synchronous belt. The second synchronous pulley is connected to one end of the rotating shaft, and a first connecting plate is fixed on the rotating shaft.

4. The rotating core-joining mechanism according to claim 1, characterized in that: The positioning assembly includes a third cylinder, a second connecting plate, a first push plate, and a second push plate. The two ends of the second support plate in the length direction are respectively fixedly connected to the first push plate through the first sliding assembly. The two sides of the second support plate in the width direction are respectively fixedly connected to the second push plate through the second sliding assembly. The second push plate is fixed on the second sliding assembly through the second connecting block. The second connecting block is slidably connected to the second connecting plate. The third cylinder is connected to the second connecting plate.

5. The rotating core-joining mechanism according to claim 4, characterized in that: The first sliding assembly includes a first slider and a first slide rail, and the second sliding assembly includes a second slider and a second slide rail. The first slide rail and the second slide rail are respectively fixed to the bottom of the second support plate. The first slider is fixed to the first push plate through a first connecting block, and the two second sliders on the second slide rail are respectively fixed to a second connecting block.

6. The rotating core-joining mechanism according to claim 4, characterized in that: The second connecting block is slidably connected to the second connecting plate via a cam. The second connecting plate has two through slots in the shape of the number eight, and the cam is located in the through slots.

7. The rotating core-joining mechanism according to claim 4, characterized in that: The first push plate is U-shaped, with the U-shaped opening facing the center of the second support plate. The second push plate is L-shaped, with a protective pad at the end of the second push plate facing the center of the second support plate.

8. The rotating core-joining mechanism according to claim 1, characterized in that: The mechanism also includes a tab protection assembly, which includes a fourth cylinder and a tab protection plate. The fourth cylinder is fixed to the second support plate by a connector, and the tab protection plate is fixed to the fourth cylinder.

9. The rotating core-closing mechanism according to claim 1, characterized in that: The second tray includes a base, the upper surface of which is connected to the battery cell tray via a first fixing block. The two ends of the base along its length are respectively fixedly connected to a second fixing block. The battery cell tray has multiple through holes, and plastic universal balls are placed inside the through holes.

10. The rotating core-joining mechanism according to claim 3, characterized in that: The mechanism also includes a support assembly, which includes a base, a bottom plate, and a third connecting plate. The second support plate is fixed on the bottom plate, and the bottom plate is fixed on the base by a column. Both ends of the rotating shaft are fixed on the bottom plate by the third connecting plate.

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