Tab flattening equipment

Abstract

The utility model discloses tab flattening equipment which comprises a pair of flattening units, and each flattening unit comprises an equipment base, a servo electric cylinder arranged on the equipment base and a guide shaft mounting plate; a guide shaft seat is arranged on the guide shaft mounting plate, and a guide shaft is arranged in the guide shaft seat in a penetrating manner; the servo electric cylinder is in driving connection with a flattening piece mounting seat, the flattening piece mounting seat is connected with the guide shaft, a flattening piece is arranged on the flattening piece mounting seat, and the flattening piece is provided with a flattening opening and a center needle; a servo electric cylinder of a pair of flattening units drives a flattening piece mounting seat to drive a flattening piece to move along with a guide shaft along a guide shaft seat towards the direction of a battery with a to-be-flattened tab in the middle, and accurate positioning and flattening of the battery with the to-be-flattened tab are simultaneously realized through a flattening opening and a central needle. After the tabs of the battery are flattened, the tabs on the end faces of the battery can be accurately positioned and flattened, the flatness of the tabs is guaranteed, the problem that the surfaces are uneven after the tabs are flattened is solved, the contact effect, the current collecting effect and the welding quality of the tabs of all layers are guaranteed, and the quality of the battery is improved.

Description

Technical Field

[0001] This patent belongs to the field of battery manufacturing equipment technology, specifically relating to a tab flattening device. Background Technology

[0002] Tabs are metallic conductors that lead out the positive and negative electrodes from the battery cell. In the battery cell manufacturing process, the originally upright tabs need to be flattened. Usually, mechanical rotation flattening is used to flatten the tabs before welding them to the plates. Mechanical rotation flattening mostly flattens the tabs through hard contact. However, this method cannot guarantee the flatness of the flattened tabs. The flattened surface still has unevenness, which affects the contact effect of each layer of tabs, the current collection effect and the welding quality, and thus the battery quality. Therefore, it is necessary to develop a new type of tab flattening equipment. Utility Model Content

[0003] The purpose of this patent is to overcome the shortcomings of the prior art and provide a tab flattening device that can accurately position and flatten the tabs on the end face of the battery after the battery tabs have been flattened, ensuring the flatness of the cell tabs and solving the problem of uneven surface after the battery tabs have been flattened. This ensures the contact effect of each layer of tabs, the current collection effect and the welding quality, thereby improving the battery quality.

[0004] To achieve the above objectives, this patent adopts the following technical solution: a tab flattening device, comprising a pair of flattening units, with the battery having its tab flattened located between the pair of flattening units. Each flattening unit includes a device base, a servo cylinder mounted on the device base, and a guide shaft mounting plate. The guide shaft mounting plate is connected to the servo cylinder. A guide shaft seat is provided on the guide shaft mounting plate, and a guide shaft passes through the guide shaft seat. The servo cylinder drives a flattening component mounting seat, which is connected to the guide shaft. A flattening component is provided on the flattening component mounting seat, and the flattening component has a flattening opening and a center pin. Specifically, the flattening opening corresponds to the battery having its tab flattened, and the center pin corresponds to the tab having its flattened. Corresponding to the center of the battery, the center pin is inserted into the center of the battery, which can effectively protect the center of the battery and achieve precise positioning and flattening. Then, the servo cylinder of a pair of flattening units drives the flattening component mounting base to move the flattening component along the guide shaft seat towards the battery with the tab to be flattened in the middle. Furthermore, the flattening opening of the flattening component and the center pin simultaneously achieve precise positioning and flattening of the battery with the tab to be flattened. After the battery tab is flattened, it can achieve precise positioning and flattening of the battery end face tab, ensuring the flatness of the battery tab, solving the problem of uneven surface after the battery tab is flattened, thereby ensuring the contact effect of each layer of tab, ensuring the current collection effect and welding quality, and thus improving the battery quality.

[0005] Furthermore, the device base in this technical solution is provided with a base adjustment plate; the device base has a first adjustment hole, and the base adjustment plate has a second adjustment hole corresponding to the first adjustment hole, and a first adjustment screw is provided in the first adjustment hole and the second adjustment hole; by adjusting the first adjustment screw, the left and right movement of the device base is adjusted, thereby driving the entire tab flattening device of this technical solution to move left and right, improving the adjustability and expandability of the device.

[0006] Furthermore, the flattening component mounting base in this technical solution has a third adjustment hole, and the flattening component has a fourth adjustment hole corresponding to the third adjustment hole. A second adjustment screw is provided in the third adjustment hole and the fourth adjustment hole. The flattening component can be adjusted up and down by adjusting the second adjustment screw, thereby improving the adjustability and expandability of the equipment.

[0007] Furthermore, the guide shaft described in this technical solution is provided with a limiting element.

[0008] The tab flattening device provided by this patent has the following advantages: A pair of flattening units drive the flattening component mounting base via servo cylinders, causing the flattening component to move along the guide shaft towards the battery with the tab to be flattened. Furthermore, the flattening opening and center pin of the flattening component simultaneously achieve precise positioning of the battery with the tab to be flattened. After the battery tab is flattened, it can accurately position and flatten the battery end face tab, ensuring the flatness of the battery tab and solving the problem of uneven surface after flattening. This ensures the contact effect of each layer of tabs, guarantees current collection efficiency and welding quality, thereby improving battery quality. Simultaneously, the device has high adjustability and expandability. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this patent, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this patent. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0010] Figure 1 This is a schematic diagram of the structure of a tab flattening device disclosed in an embodiment of this patent;

[0011] Figure 2 This is a schematic diagram of the flattening unit in an electrode flattening device disclosed in this patent embodiment;

[0012] Figure 3 This is a schematic diagram of the flattening component of the flattening unit in an electrode flattening device disclosed in this patent embodiment;

[0013] The following are the labels in the diagram: 1-flattening unit, 2-equipment base, 201-first adjustment hole, 3-servo electric cylinder, 4-limiting component, 5-guide shaft, 6-guide shaft mounting plate, 7-guide shaft seat, 8-flattening component mounting seat, 801-third adjustment hole, 9-flattening component, 901-flattening opening, 902-center pin, 903-fourth adjustment hole, 10-base adjustment plate, 1001-second adjustment hole, 11-first adjustment screw, 12-second adjustment screw. Detailed Implementation

[0014] The technical solutions of this patent embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this patent, and not all of them. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0015] See Figure 1-3 This patent discloses an electrode flattening device, including a pair of flattening units 1. A battery with electrodes to be flattened is located between the pair of flattening units. Each flattening unit 1 includes a device base 2, a servo cylinder 3 mounted on the device base 2, and a guide shaft mounting plate 6. The guide shaft mounting plate 6 is connected to the servo cylinder 3. A guide shaft seat 7 is provided on the guide shaft mounting plate 6, and a guide shaft 5 passes through the guide shaft seat 7. The servo cylinder 3 is driven and connected to a flattening component mounting seat 8, which is connected to the guide shaft 5. A flattening component 9 is provided on the flattening component mounting seat 8, and the flattening component 9 has a flattening opening 901 and a center pin 902. Specifically, the flattening opening 901 corresponds to the battery with electrodes to be flattened, and the center pin 902 corresponds to the battery with electrodes to be flattened. The center of the flat-tab battery corresponds to the center of the battery, and the center pin 902 is inserted into the center of the battery to effectively protect the center of the battery and achieve precise positioning and flattening. Thus, the servo cylinder 3 of a pair of flattening units 1 drives the flattening component mounting base 8 to move the flattening component 9 along the guide shaft 5 along the guide shaft seat 7 towards the battery with the tab to be flattened in the middle. Furthermore, the flattening opening 901 of the flattening component 9 and the center pin 902 simultaneously achieve precise positioning and flattening of the battery with the tab to be flattened. After the battery tab is flattened, the end face tab of the battery can be precisely positioned and flattened to ensure the flatness of the battery tab and solve the problem of uneven surface after the battery tab is flattened. This ensures the contact effect of each layer of tabs, ensures the current collection effect and welding quality, and thus improves the battery quality.

[0016] Further, see Figure 2In this embodiment, a base adjustment plate 10 is provided under the equipment base 2; the equipment base 2 has a first adjustment hole 201, and the base adjustment plate 10 has a second adjustment hole 1001 corresponding to the first adjustment hole 201. A first adjustment screw 11 is provided in the first adjustment hole 201 and the second adjustment hole 1001; by adjusting the first adjustment screw 11, the left and right movement of the equipment base 2 is adjusted, thereby driving the entire tab flattening device of this embodiment to move left and right, improving the adjustability and expandability of the device.

[0017] Further, see Figure 2-3 In this embodiment, the flattening component mounting base 8 has a third adjustment hole 801, and the flattening component 9 has a fourth adjustment hole 903 corresponding to the third adjustment hole 801. A second adjustment screw 12 is provided in the third adjustment hole 801 and the fourth adjustment hole 903. The flattening component 9 can be adjusted up and down by adjusting the second adjustment screw 12, thereby improving the adjustability and expandability of the equipment.

[0018] Further, see Figure 2 In this embodiment, a limiting element 4 is provided on the guide shaft 5.

[0019] The above description is merely an embodiment of this patent and does not limit the scope of this patent. Any equivalent structural or procedural transformations made using the contents of this patent specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this patent.

Claims

1. A tab flattening device, comprising a pair of flattening units (1), wherein each flattening unit (1) includes a device base (2), a servo electric cylinder (3) mounted on the device base (2), and a guide shaft mounting plate (6); the guide shaft mounting plate (6) is connected to the servo electric cylinder (3); a guide shaft seat (7) is provided on the guide shaft mounting plate (6), and a guide shaft (5) passes through the guide shaft seat (7); characterized in that: The servo electric cylinder (3) drives the flattening component mounting seat (8), which is connected to the guide shaft (5). The flattening component mounting seat (8) is provided with a flattening component (9), which has a flattening opening (901) and a center pin (902). The servo electric cylinder (3) drives the flattening component mounting seat (8) to move the flattening component (9) along the guide shaft seat (7) with the guide shaft (5).

2. The electrode flattening device according to claim 1, characterized in that: A base adjustment plate (10) is provided under the equipment base (2).

3. The electrode flattening device according to claim 2, characterized in that: The equipment base (2) has a first adjustment hole (201), and the base adjustment plate (10) has a second adjustment hole (1001) corresponding to the first adjustment hole (201). A first adjustment screw (11) is provided in the first adjustment hole (201) and the second adjustment hole (1001).

4. The electrode flattening device according to claim 1, characterized in that: The flattening component mounting base (8) has a third adjustment hole (801), and the flattening component (9) has a fourth adjustment hole (903) corresponding to the third adjustment hole (801). A second adjustment screw (12) is provided in the third adjustment hole (801) and the fourth adjustment hole (903).

5. The electrode flattening device according to claim 1, characterized in that: A limiting element (4) is provided on the guide shaft (5).

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