Pole piece adsorption device and battery lamination equipment

Abstract

The utility model relates to a pole piece adsorption device and battery lamination equipment. The pole piece adsorption device comprises a first cover plate and a second cover plate which are mutually covered, and a vacuum cavity is formed between the first cover plate and the second cover plate through a sealing ring; a vacuum air path is arranged in the second cover plate, one end of the vacuum air path is communicated with the interior of the vacuum cavity, and the other end of the vacuum air path is communicated with a connector; a plurality of adsorption holes are formed in the first cover plate in a penetrating mode and communicate with the vacuum cavity. In the embodiment, when the pole pieces with different sizes need to be replaced for adsorption, the first cover plate and the second cover plate are arranged in a covering manner, so that the first cover plate and the second cover plate are detachable, and adsorption of the pole pieces with different sizes can be realized only by replacing the first cover plate and keeping other parts unchanged; the device can adapt to pole pieces with different sizes; meanwhile, the machining cost of the first cover plate is low, only the first cover plate needs to be replaced during remodeling, and the remodeling cost is correspondingly low.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a pole piece adsorption device and battery lamination equipment. Background Art

[0002] At present, lithium battery stacking equipment is equipped with a deflection correction table, which is responsible for correcting the pole piece. The deflection correction table is composed of a deflection correction mechanism, a CCD, a suction plate, etc. In order to ensure that the CCD can accurately measure the size and position of the pole piece, and the pole piece can be flattened after being placed on the deflection correction table, the suction plate is generally made of transparent acrylic material, and the suction plate contains pores inside to facilitate the adsorption of the pole piece.

[0003] Since the stacking equipment may be compatible with multiple models, the pole pieces also come in multiple sizes, and the existing suction plates are usually made of acrylic as a whole, requiring the processing of a special vacuum adsorption pore structure. The processing technology is complicated, and the existing suction plates have poor compatibility. Each size of pole piece needs to be separately configured with a dedicated suction plate, resulting in high overall costs. There is room for improvement. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, according to one aspect of the utility model, a pole piece adsorption device is provided, comprising a first cover plate and a second cover plate covering each other, wherein a vacuum cavity is formed between the first cover plate and the second cover plate through a sealing ring;

[0005] A vacuum air path is provided in the second cover plate, one end of the vacuum air path is connected to the vacuum chamber and the other end is connected to a joint;

[0006] The first cover plate is provided with a plurality of adsorption holes, and the plurality of adsorption holes are communicated with the vacuum cavity.

[0007] In an embodiment of the present invention, a mounting groove is provided on the end surface of the second cover plate facing the first cover plate, and the sealing ring is assembled in the mounting groove.

[0008] In one embodiment of the utility model, one end of the vacuum air path connected to the vacuum chamber is arranged on the end surface of the second cover plate facing the first cover plate, and the other end of the vacuum air path connected to the joint is arranged on a side wall of the second cover plate.

[0009] In an embodiment of the present invention, the vacuum air path is provided with at least three communication ports disposed on the end surface of the second cover plate facing the first cover plate.

[0010] In an embodiment of the present invention, the diameter d1 of the adsorption hole is in the range of 1 mm ≤ d1 ≤ 2 mm.

[0011] In an embodiment of the present invention, the positions of the plurality of adsorption holes are arranged in a shape similar to that of the pole piece.

[0012] In an embodiment of the present invention, the first cover plate and the second cover plate are fixed by fasteners.

[0013] In an embodiment of the present invention, a plurality of the fasteners are provided, and the plurality of the fasteners are arranged on the circumferential outer side of the sealing ring between the first cover plate and the second cover plate.

[0014] In an embodiment of the present invention, the vacuum air passages are provided in a plurality, and the plurality of vacuum air passages are arranged at intervals along the length direction of the second cover plate.

[0015] According to another aspect of the present application, a battery stacking device is provided, comprising the above-mentioned pole piece adsorption device.

[0016] In summary, the pole piece adsorption device and battery lamination equipment provided by the utility model have the following technical effects:

[0017] When it is necessary to replace pole pieces of different sizes for adsorption, since the first cover plate and the second cover plate are covered with each other, the first cover plate and the second cover plate are detachable. Therefore, only the first cover plate needs to be replaced, and the other parts remain unchanged to achieve the adsorption of pole pieces of different sizes. This can adapt to pole pieces of various sizes and facilitate model change. At the same time, the processing cost of the first cover plate is low, and only the first cover plate needs to be replaced when changing the model, and the model change cost is also correspondingly low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a pole piece adsorption device according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the exploded state of the pole piece adsorption device according to an embodiment of the utility model;

[0020] Figure: 1-connector, 2-second cover plate, 201-mounting groove, 202-vacuum air path, 3-sealing ring, 4-first cover plate, 401-adsorption hole, 5-fastener, 6-pole piece. DETAILED DESCRIPTION

[0021] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0024] The embodiment of the utility model discloses a pole piece adsorption device, which can be specifically applied to a deviation correction platform of a lithium battery stacking machine.

[0025] See also Figure 1-Figure 2 The electrode adsorption device specifically includes a first cover plate 4 and a second cover plate 2 which cover each other, and a vacuum cavity is formed between the first cover plate 4 and the second cover plate 2 through a sealing ring 3; a vacuum air path 202 is arranged in the second cover plate 2, one end of the vacuum air path 202 is connected to the vacuum cavity and the other end is connected to a joint 1; a plurality of adsorption holes 401 are arranged through the first cover plate 4, and the plurality of adsorption holes 401 are connected to the vacuum cavity.

[0026] In specific implementation, the first cover plate 4 is installed and covered on the second cover plate 2, and the sealing ring 3 is used to form a vacuum cavity between the first cover plate 4 and the second cover plate 2. When working, the vacuum air path 202 in the second cover plate 2 is connected to an external negative pressure generating device, such as an air pump, through the joint 1, and the adsorption hole 401 on the first cover plate 4 can adsorb the electrode 6 when it is placed, thereby completing the adsorption work of the electrode 6 of the suction plate.

[0027] Furthermore, when it is necessary to replace the pole pieces 6 of different sizes for adsorption, since the first cover plate 4 and the second cover plate 2 are arranged to cover each other, the first cover plate 4 and the second cover plate 2 are detachable. Therefore, only the first cover plate 4 needs to be replaced, and the other parts remain unchanged to achieve the adsorption of pole pieces 6 of different sizes, which can adapt to pole pieces 6 of various sizes and facilitate the change of type. At the same time, the processing cost of the first cover plate 4 is low, and only the first cover plate 4 needs to be replaced when changing the type, and the changeover cost is also correspondingly low.

[0028] In an optional embodiment, the positions of the plurality of adsorption holes 401 on the first cover plate 4 are designed to conform to the shape of the pole piece 6. Such a configuration can better adapt to the adsorption of the pole piece 6.

[0029] In an optional embodiment, the first cover plate 4 and the first are overlapped from top to bottom.

[0030] Since the suction plate can adapt to pole pieces 6 of various sizes, corresponding first cover plates 4 can be specifically set for pole pieces 6 of different sizes. In an optional embodiment, multiple cover plates can be specifically provided with multiple adsorption holes 401 on the multiple first cover plates 4, and the positions of the adsorption holes 401 are arranged in a one-to-one corresponding shape design to the pole pieces 6 of multiple different sizes.

[0031] In order to make the first cover plate 4 and the second cover plate 2 cover more tightly, in an optional embodiment, the first cover plate 4 and the second cover plate 2 are fixed by a fastener 5. The structure of the fastener 5 can be a fastening screw or a fastening bolt, or a clamp structure is also acceptable.

[0032] For example, threaded holes may be provided on the first cover plate 4 and the second cover plate 2 , and the fastener 5 may be threadedly connected in the threaded holes on both the first cover plate 4 and the second cover plate 2 to fix the first cover plate 4 and the second cover plate 2 .

[0033] In order to further improve the fastening effect and the adsorption effect, in an optional embodiment, a plurality of fasteners 5 are provided, and the plurality of fasteners 5 are provided on the circumferential outer side of the sealing ring 3 between the first cover plate 4 and the second cover plate 2. In this way, a fastened sealing structure can be formed around the first cover plate 4 and the second cover plate 2, and the adsorption force can be generated continuously and stably.

[0034] In an optional embodiment, the number of vacuum air paths 202 can be specifically set to at least two, for example, two, three, four, etc. Such a setting can improve the overall adsorption force and the uniformity of the adsorption force, and more firmly adsorb the electrode 6.

[0035] In an optional embodiment, the number of vacuum air passages 202 may be multiple, and the multiple vacuum air passages 202 are arranged at intervals along the length direction of the second cover plate 2. Such an arrangement can also improve the overall adsorption force and the uniformity of the adsorption force, and more firmly adsorb the electrode 6.

[0036] In an optional embodiment, the vacuum air passage 202 is provided with at least three communication ports on the end surface of the second cover plate 2 facing the first cover plate 4. Such a configuration can also improve the overall adsorption force and the uniformity of the adsorption force, and more firmly adsorb the electrode 6.

[0037] In an optional embodiment, one end of the vacuum air path 202 communicating with the vacuum chamber may be specifically arranged on the end surface of the second cover plate 2, and the other end of the vacuum air path 202 communicating with the connector 1 may be specifically arranged on a side wall of the second cover plate 2. In this way, the connector 1 will be specifically installed on the side wall of the second cover plate 2, which can reduce the interference problem between the connector 1 and other workpieces, and the position layout is more reasonable.

[0038] It should be noted that the end surface of the second cover plate 2 refers to the end surface of the second cover plate 2 facing the first cover plate 4, and a side wall of the second cover plate 2 refers to the side wall of the second cover plate 2 extending along the height direction.

[0039] In an optional embodiment, the end surface of the second cover plate 2 facing the first cover plate 4 is provided with a mounting groove 201, and the sealing ring 3 is assembled in the mounting groove 201. Such a configuration can form a limiting and positioning function for the sealing ring 3, which not only facilitates the positioning and installation of the sealing ring 3, but also increases the contact area between the sealing ring 3 and the mounting groove 201 to improve the sealing effect.

[0040] In an optional embodiment, the diameter d1 of the adsorption hole 401 may be in the range of 1 mm ≤ d1 ≤ 2 mm. For example, the diameter d1 of the adsorption hole 401 may be 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm or 2 mm, etc. Alternatively, the diameter d1 of the adsorption hole 401 may also be other values ​​within the range of 1 mm ≤ d1 ≤ 2 mm.

[0041] The embodiment of the utility model also discloses a battery stacking device, including the above-mentioned pole piece adsorption device. Therefore, when the battery stacking device needs to replace pole pieces 6 of different sizes for adsorption, it is only necessary to replace the first cover plate 4, and the other parts remain unchanged to achieve the adsorption of pole pieces 6 of different sizes. This can adapt to pole pieces 6 of various sizes and facilitate the change of type. At the same time, the processing cost of the first cover plate 4 is low. When changing the type, only the first cover plate 4 needs to be replaced, and the changeover cost is also correspondingly low.

[0042] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A pole piece adsorption device, characterized in that: It comprises a first cover plate (4) and a second cover plate (2) which cover each other, a sealing ring (3) is arranged between the first cover plate (4) and the second cover plate (2), and a vacuum cavity is formed between the first cover plate (4) and the second cover plate (2) through the sealing ring (3); A vacuum air path (202) is provided in the second cover plate (2), one end of the vacuum air path (202) is connected to the vacuum chamber and the other end is connected to a joint (1); The first cover plate (4) is provided with a plurality of adsorption holes (401) extending therethrough, and the plurality of adsorption holes (401) are connected to the vacuum cavity.

2. A pole piece adsorption device according to claim 1, characterized in that: The end surface of the second cover plate (2) facing the first cover plate (4) and / or the end surface of the first cover plate (4) facing the second cover plate (2) is provided with a mounting groove (201), and the sealing ring (3) is assembled in the mounting groove (201).

3. The electrode adsorption device according to claim 1, characterized in that: One end of the vacuum air path (202) connected to the vacuum chamber is arranged on the end surface of the second cover plate (2) facing the first cover plate (4), and the other end of the vacuum air path (202) connected to the joint (1) is arranged on a side wall of the second cover plate (2).

4. The electrode adsorption device according to claim 1, characterized in that: The vacuum air passage (202) is provided with at least three communication ports arranged on the end surface of the second cover plate (2) facing the first cover plate (4).

5. A pole piece adsorption device according to any one of claims 1 to 4, characterized in that: The diameter d1 of the adsorption hole (401) is in the range of 1 mm ≤ d1 ≤ 2 mm.

6. A pole piece adsorption device according to any one of claims 1 to 4, characterized in that: The positions at which the plurality of adsorption holes (401) are arranged are designed to conform to the shape of the pole piece (6).

7. A pole piece adsorption device according to any one of claims 1 to 4, characterized in that: The first cover plate (4) and the second cover plate (2) are fixed by a fastener (5).

8. The pole piece adsorption device according to claim 7, characterized in that: A plurality of the fasteners (5) are provided, and the plurality of the fasteners (5) are arranged on the circumferential outer side of the sealing ring (3) between the first cover plate (4) and the second cover plate (2).

9. A pole piece adsorption device according to any one of claims 1-4 and 8, characterized in that: The vacuum air passages (202) are provided in a plurality, and the plurality of vacuum air passages (202) are arranged at intervals along the length direction of the second cover plate (2).

10. Battery lamination equipment, characterized in that: It comprises a pole piece adsorption device according to any one of claims 1-9.

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