Automatic chamfering device for lithium battery PACK

Abstract

The utility model belongs to the technical field of lithium battery pole piece chamfering, and relates to a lithium battery PACK automatic chamfering device which comprises a bottom plate, a containing plate is installed in the middle of the bottom plate, first supporting frames are installed at the two ends of the bottom plate, electric push rods are installed on the two sides of the bottom plate, and the moving ends of the electric push rods are connected with supporting frames. The two ends of the supporting frame are connected with a supporting plate and a clamping assembly correspondingly, the supporting frame is arranged on the bottom plate, and the clamping assembly is used for being matched with the containing plate for use. According to the utility model, the clamping assembly can be used for clamping the corners of the pole piece of the lithium battery, and the clamping force is applied to the corners of the pole piece, so that the material in the corner area of the pole piece is compressed, the rigidity of the corner area of the pole piece is increased, the phenomenon that the corners of the pole piece are bent and the chamfering quality is poor in the polishing process is reduced, and the polishing quality of the pole piece is improved. And flexible adjustment can be carried out according to the thickness and the length of the pole piece, so that different pole pieces can be clamped.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery electrode chamfering technology, and relates to an automatic chamfering device for lithium battery PACK. Background Technology

[0002] The automatic chamfering device for lithium battery packs is an automated equipment specifically designed for processing the positive and negative electrode sheets of lithium batteries. It is mainly used to chamfer the edges of lithium battery electrode sheets to reduce the safety hazards such as short circuits caused by the edges of the lithium battery electrode sheets piercing the battery casing or internal separator.

[0003] Lithium battery electrode sheets are usually made of copper foil or aluminum foil, which are relatively soft. When the edges and corners are chamfered by a grinding wheel, the grinding area of ​​the grinding wheel is prone to bending, which reduces the quality of the chamfering. Utility Model Content

[0004] The technical problem to be solved by this utility model is that lithium battery electrode sheets are usually made of copper foil or aluminum foil, which are relatively soft. When the edges and corners are chamfered by a grinding wheel, bending and other phenomena are easily caused in the grinding area of ​​the grinding wheel, thereby reducing the chamfering quality.

[0005] The present invention discloses an automatic chamfering device for a lithium battery pack, comprising a base plate, a placement plate installed in the middle of the base plate, first support frames installed at both ends of the base plate, electric push rods installed on both sides of the base plate, a support frame connected to the moving end of the electric push rods, and support plates connected to both ends of the support frame.

[0006] A clamping assembly is disposed on the base plate and is used in conjunction with the placement plate;

[0007] An adjustment component is disposed on the first support frame and is used in conjunction with the placement plate.

[0008] The clamping assembly includes spring columns, which are equidistantly mounted on a support plate. An adjusting plate is connected to the movable end of each spring column. First sliding plates are slidably passed through both ends of the adjusting plate. Cross screws are passed through both ends of the adjusting plate, with one end of each cross screw abutting against the surface of the first sliding plate. A first adjusting frame is connected to the end of the first sliding plate away from the adjusting plate. A second clamping plate is obliquely mounted at one end of a set of first adjusting frames near the bottom plate, and a first clamping plate is obliquely mounted at one end of a set of first adjusting frames away from the bottom plate.

[0009] The clamping assembly further includes a first trapezoidal slider, which is mounted on one end of the first adjusting frame near the first sliding plate. A second trapezoidal slider slides against the first trapezoidal slider. A screw is rotatably connected to one end of the second trapezoidal slider away from the first trapezoidal slider. One end of the screw is threaded through the interior of the second support frame. A first guide rod slides through the interior of the second support frame. One end of the first guide rod is connected to the second trapezoidal slider. A limiting plate is connected to one side of the second trapezoidal slider. One side surface of the limiting plate is in contact with the surface of the first sliding plate.

[0010] The clamping assembly also includes a connecting frame, which is T-shaped and symmetrically installed on both sides of the base plate. A second sliding plate is slidably connected to one end of the connecting frame. An adjusting spring is provided between the second sliding plate and one end of the connecting frame. The end of the second sliding plate away from the connecting frame is connected to a second support frame.

[0011] The adjustment assembly includes a second guide rod and a first servo motor. The second guide rod is symmetrically installed at both ends of the first support frame. The second guide rod slides through the second adjustment frame. A first lead screw is connected to the middle of the second adjustment frame via a lead screw and nut pair. The first servo motor is installed at one end of the first support frame, and the output end of the first servo motor is connected to the first lead screw.

[0012] The adjustment assembly also includes a second lead screw and a second servo motor. The second servo motor is installed at one end of the second adjustment frame. The second lead screw rotates through the interior of the second adjustment frame and is connected to the output end of the second servo motor. The lead screw and nut pair of the second lead screw is connected to a mounting bracket that is slidably connected to the second adjustment frame. A grinding wheel is installed at one end of the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the clamping component can clamp the corners of the lithium battery electrode and apply clamping force to the corners of the electrode, so that the material in the corner area of ​​the electrode will be compressed, thereby increasing the rigidity of the corner area of ​​the electrode and reducing the phenomenon of bending of the corners of the electrode and the chamfering quality during the grinding process. Moreover, it can be flexibly adjusted according to the thickness and length of the electrode to suit the clamping of different electrodes.

[0014] The adjustment components allow for adjustment of the horizontal and vertical coordinates of the grinding wheel, enabling the grinding wheel to flexibly grind the four corners of the electrode sheet and further improving the applicability of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a complete structural schematic diagram of the present invention.

[0017] Figure 2 This is one of the structural schematic diagrams of the clamping component of this utility model.

[0018] Figure 3 This is one of the structural schematic diagrams of the clamping component of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0020] In the diagram: 1. Base plate; 2. Placement plate; 3. First support frame; 4. Electric actuator; 5. Support frame; 6. Support plate; 7. Spring column; 8. Adjustment plate; 9. First sliding plate; 10. Phillips head screw; 11. First trapezoidal slider; 12. First adjustment frame; 13. First clamping plate; 14. Second trapezoidal slider; 15. Screw; 16. Second support frame; 17. First guide rod; 18. Second clamping plate; 19. Connecting frame; 20. Second sliding plate; 21. Adjusting spring; 22. Second guide rod; 23. First lead screw; 24. First servo motor; 25. Second adjustment frame; 26. Second lead screw; 27. Mounting frame; 28. Second servo motor; 29. ​​Grinding wheel; 30. Limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Example 1

[0026] like Figures 1-4 As shown, an automatic chamfering device for a lithium battery pack includes a base plate 1. A placement plate 2 is installed in the middle of the base plate 1 to support the lithium battery electrode. The length and width of the placement plate 2 are smaller than the length and width of the lithium battery electrode, so that the four corners of the electrode are suspended in the air to facilitate subsequent grinding. First support frames 3 are installed at both ends of the base plate 1, and electric push rods 4 are installed on both sides of the base plate 1. The moving end of the electric push rod 4 is connected to a support frame 5, and support plates 6 are connected to both ends of the support frame 5.

[0027] A clamping assembly is mounted on the base plate 1 and is used in conjunction with the placement plate 2.

[0028] An adjustment component is mounted on the first support frame 3 and is used in conjunction with the placement plate 2.

[0029] Example 2

[0030] like Figures 1-4 As shown, the clamping assembly includes spring columns 7, which are equidistantly mounted on the support plate 6. The moving end of the spring column 7 is connected to an adjusting plate 8. The two ends of the adjusting plate 8 are respectively slidably penetrated by a first sliding plate 9. The two ends of the adjusting plate 8 are penetrated by a cross screw 10. One end of the cross screw 10 abuts against the surface of the first sliding plate 9. The end of the first sliding plate 9 away from the adjusting plate 8 is connected to a first adjusting frame 12. A second clamping plate 18 is installed at an angle on one end of a set of first adjusting frames 12 close to the base plate 1, and a first clamping plate 13 is installed at an angle on one end of a set of first adjusting frames 12 away from the base plate 1.

[0031] like Figures 1-4 As shown, the clamping assembly also includes a first trapezoidal slider 11, which is mounted on one end of the first adjusting frame 12 near the first sliding plate 9. A second trapezoidal slider 14 slides against the first trapezoidal slider 11. A screw 15 is rotatably connected to one end of the second trapezoidal slider 14 away from the first trapezoidal slider 11. One end of the screw 15 is threaded through the interior of the second support frame 16. A first guide rod 17 slides through the interior of the second support frame 16. One end of the first guide rod 17 is connected to the second trapezoidal slider 14.

[0032] like Figures 1-4 As shown, the clamping assembly also includes a connecting frame 19, which is T-shaped and symmetrically installed on both sides of the base plate 1. A second sliding plate 20 is slidably connected to one end of the connecting frame 19. An adjusting spring 21 is provided between the second sliding plate 20 and one end of the connecting frame 19. The end of the second sliding plate 20 away from the connecting frame 19 is connected to the second support frame 16. A limiting plate 30 is connected to one side of the second trapezoidal slider 14, and one side surface of the limiting plate 30 is in contact with the surface of the first sliding plate 9.

[0033] During operation, the lithium battery electrode is placed on the surface of the placement plate 2, with its four corners suspended. Then, the moving end of the electric push rod 4 pushes the first clamping plate 13 and the second clamping plate 18 towards the base plate 1, so that the corners of the electrode are between them. As they move, the inclined surface of the second trapezoidal slider 14 presses against the inclined surface of the first trapezoidal slider 11, causing one set of first trapezoidal sliders 11 to pull the moving end of the spring column 7, which in turn moves the first clamping plate 13 vertically towards the base plate 1. The other set of first trapezoidal sliders 11 pulls the moving end of the spring column 7, which in turn moves the second clamping plate 18 vertically away from the base plate 1. This achieves the effect of gradually bringing the two closer together and clamping the corners of the electrode. The clamping force is applied to the corners of the electrode, which compresses the material in the corner area, increasing the rigidity of the corner area and reducing the occurrence of bending and chamfering defects in the corners during the polishing process.

[0034] Simultaneously, based on the thickness of the electrode sheet, by rotating the screw 15 in both directions, under the guidance of the first guide rod 17, the second trapezoidal slider 14 moves vertically away from or closer to the first trapezoidal slider 11. This, in turn, pushes the first trapezoidal slider 11 to move vertically through the adjusting plate 8, pulling the moving end of the spring column 7. Under the elastic action of the spring column 7, the inclined surfaces of the first trapezoidal slider 11 and the second trapezoidal slider 14 come into contact with each other. At this time, the distance between the first clamping plate 13 and the second clamping plate 18 can be changed, thereby achieving the effect of clamping and fixing electrode sheets of different thicknesses.

[0035] Simultaneously, based on the length of the electrode sheet, the length of the extension of multiple sets of first sliding plates 9 inside the adjusting plate 8 can be adjusted by loosening the cross screw 10 with a tool. After the adjustment is completed, the cross screw 10 is tightened. In this step, when the first trapezoidal slider 11 moves horizontally with the first sliding plate 9, and when the first trapezoidal slider 11 moves towards the adjusting plate 8, the second trapezoidal slider 14 moves with the first trapezoidal slider 11 through the second support frame 16 and the second sliding plate 20 under the elastic force of the adjusting spring 21 and the limiting action of the limiting plate 30. When the first trapezoidal slider 11 moves away from the adjusting plate 8, under the limiting action of the limiting plate 30, the first trapezoidal slider 11 pushes the second trapezoidal slider 14 to move with the first trapezoidal slider 11 through the second support frame 16 and the second sliding plate 20, so as to clamp the corners of electrode sheets of different lengths and adjust the clamping position of the electrode corners, further improving the applicability of this device.

[0036] Example 3

[0037] like Figures 1-4As shown, the adjustment assembly includes a second guide rod 22 and a first servo motor 24. The second guide rod 22 is symmetrically installed at both ends of the first support frame 3. The second guide rod 22 slides through the second adjustment frame 25. The first lead screw 23 is connected to the lead screw nut pair in the middle of the second adjustment frame 25. The first servo motor 24 is installed at one end of the first support frame 3. The output end of the first servo motor 24 is connected to the first lead screw 23.

[0038] like Figures 1-4 As shown, the adjustment assembly also includes a second lead screw 26 and a second servo motor 28. The second servo motor 28 is installed at one end of the second adjustment frame 25. The second lead screw 26 rotates through the interior of the second adjustment frame 25 and is connected to the output end of the second servo motor 28. The lead screw 26 is connected to a mounting bracket 27 that is slidably connected to the second adjustment frame 25. A grinding wheel 29 is installed at one end of the mounting bracket 27.

[0039] During operation, the first servo motor 24 rotates in both directions, driving the first lead screw 23 to rotate, which in turn drives the second adjustment frame 25 to move linearly along the second guide rod 22, thereby adjusting the horizontal position of the grinding wheel 29. Similarly, the second servo motor 28 rotates in both directions, driving the second lead screw 26 to rotate, which in turn drives the mounting frame 27 to move linearly along the vertical axis along the second adjustment frame 25, again adjusting the horizontal position of the grinding wheel 29. In summary, this achieves the effect of adjusting both the horizontal and vertical positions of the grinding wheel 29, allowing for flexible grinding of the four corners of the electrode sheet and further improving the applicability of the device.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic chamfering device for a lithium battery pack, characterized in that: Includes a base plate (1), a placement plate (2) is installed in the middle of the base plate (1), a first support frame (3) is installed at both ends of the base plate (1), an electric push rod (4) is installed on both sides of the base plate (1), a support frame (5) is connected to the moving end of the electric push rod (4), and a support plate (6) is connected to both ends of the support frame (5). A clamping assembly is disposed on a base plate (1) and is used in conjunction with a placement plate (2); An adjustment component is provided on the first support frame (3) and is used in conjunction with the placement plate (2).

2. The automatic chamfering device for a lithium battery pack according to claim 1, characterized in that: The clamping assembly includes a spring column (7), which is equidistantly mounted on the support plate (6). The moving end of the spring column (7) is connected to an adjustment plate (8). The two ends of the adjustment plate (8) are respectively slidably penetrated by a first sliding plate (9). The two ends of the adjustment plate (8) are penetrated by a cross screw (10). One end of the cross screw (10) abuts against the surface of the first sliding plate (9). The end of the first sliding plate (9) away from the adjustment plate (8) is connected to a first adjustment frame (12). A second clamping plate (18) is installed at one end of a set of first adjustment frames (12) near the bottom plate (1) at an angle. A first clamping plate (13) is installed at one end of a set of first adjustment frames (12) away from the bottom plate (1) at an angle.

3. The automatic chamfering device for a lithium battery pack according to claim 2, characterized in that: The clamping assembly further includes a first trapezoidal slider (11), which is mounted on one end of the first adjusting frame (12) near the first sliding plate (9). A second trapezoidal slider (14) slides against the first trapezoidal slider (11). A screw (15) is rotatably connected to one end of the second trapezoidal slider (14) away from the first trapezoidal slider (11). One end of the screw (15) is threaded through the interior of the second support frame (16). A first guide rod (17) slides through the interior of the second support frame (16). One end of the first guide rod (17) is connected to the second trapezoidal slider (14). A limiting plate (30) is connected to one side of the second trapezoidal slider (14). One side surface of the limiting plate (30) is in contact with the surface of the first sliding plate (9).

4. The automatic chamfering device for a lithium battery pack according to claim 3, characterized in that: The clamping assembly also includes a connecting frame (19), which is T-shaped and is symmetrically installed on both sides of the base plate (1). A second sliding plate (20) is slidably connected to one end of the connecting frame (19). An adjusting spring (21) is provided between the second sliding plate (20) and one end of the connecting frame (19). The end of the second sliding plate (20) away from the connecting frame (19) is connected to the second support frame (16).

5. The automatic chamfering device for a lithium battery pack according to claim 1, characterized in that: The adjustment assembly includes a second guide rod (22) and a first servo motor (24). The second guide rod (22) is symmetrically installed at both ends of the first support frame (3). The second guide rod (22) slides through the second adjustment frame (25). The second adjustment frame (25) is connected to the first lead screw (23) in the middle of the lead screw nut pair. The first servo motor (24) is installed at one end of the first support frame (3). The output end of the first servo motor (24) is connected to the first lead screw (23).

6. The automatic chamfering device for a lithium battery pack according to claim 5, characterized in that: The adjustment assembly also includes a second lead screw (26) and a second servo motor (28). The second servo motor (28) is installed at one end of the second adjustment frame (25). The second lead screw (26) rotates through the interior of the second adjustment frame (25) and is connected to the output end of the second servo motor (28). The lead screw (26) is connected to a mounting bracket (27) that is slidably connected to the second adjustment frame (25). A grinding wheel (29) is installed at one end of the mounting bracket (27).

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