Tab flattening equipment

Abstract

The invention 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 technical field of battery production and manufacturing equipment, and specifically relates to a tab flattening device. Background Art

[0002] The tabs are metal conductors that lead the positive and negative electrodes out of the battery cells. In the production process of the battery cells, the originally upright tabs of the battery cells need to be flattened. Usually, a mechanical rotary flattening method is used to flatten the tabs and then weld them to the plates. The mechanical rotary flattening method mostly flattens the tabs by hard contact. However, this method cannot guarantee the flatness of the tabs well. The flattened surface still has unevenness, which affects the contact effect of each layer of tabs, the current collection effect and the welding quality, thereby affecting the battery quality. Therefore, it is necessary to develop a new type of tab flattening equipment. Summary of the invention

[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 battery end tabs after the battery tabs are flattened, thereby ensuring the flatness of the battery cell tabs and solving the problem of uneven surface after the battery tabs are flattened, thereby ensuring the contact effect of each layer of tabs, ensuring the current collection effect and welding quality, and thus improving the battery quality.

[0004] To achieve the above-mentioned purpose, the present patent adopts the following technical scheme: a tab flattening device, comprising a pair of flattening units, the battery whose tab is to be flattened is located between the pair of flattening units, the flattening unit comprising a device base, a servo electric cylinder and a guide shaft mounting plate arranged on the device base; the guide shaft mounting plate is connected to the servo electric cylinder; a guide shaft seat is arranged on the guide shaft mounting plate, and a guide shaft is passed through the guide shaft seat; the servo electric cylinder is driven and connected to a flattening piece mounting seat, the flattening piece mounting seat is connected to the guide shaft, a flattening piece is arranged on the flattening piece mounting seat, and the flattening piece has a flattening opening and a center needle; specifically, the flattening opening corresponds to the battery whose tab is to be flattened, and the center needle corresponds to the tab to be flattened The center of the battery corresponds to the center, and the center needle is inserted into the center of the battery, which can effectively protect the center of the battery and achieve precise positioning and flattening; thereby, a pair of servo electric cylinders of the flattening unit drive the flattening component mounting seat to drive the flattening component to move along the guide shaft along the guide shaft seat toward the direction of the battery with the middle pole ear to be flattened, and further through the flattening opening of the flattening component and the center needle, the battery pole ear to be flattened can be accurately positioned and flattened at the same time, and after the battery pole ear is flattened, the battery end face pole ear can be accurately positioned and flattened to ensure the flatness of the battery pole ear and solve the problem of uneven surface after the battery pole ear is flattened, thereby ensuring the contact effect of each layer of the pole ear, ensuring the current collection effect and welding quality, and thus improving the battery quality.

[0005] Furthermore, a base adjustment plate is arranged under the base of the device described in the technical solution; 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 arranged in the first adjustment hole and the second adjustment hole; by adjusting the first adjustment screw, the device base is adjusted to move left and right, thereby driving the overall left and right movement of the tab flattening device of the technical solution, thereby improving the adjustability and scalability of the device.

[0006] Furthermore, the flattening piece mounting seat in the technical solution has a third adjustment hole, and the flattening piece has a fourth adjustment hole corresponding to the third adjustment hole, and a second adjustment screw is arranged in the third adjustment hole and the fourth adjustment hole; by adjusting the second adjustment screw, the flattening piece can be adjusted to move up and down, thereby improving the adjustability and scalability of the equipment.

[0007] Furthermore, a limiting member is provided on the guide shaft in the technical solution.

[0008] The patent provides a tab flattening device, which has the beneficial effect of: a pair of servo electric cylinders of the flattening unit drive the flattening component mounting seat to drive the flattening component to move along the guide shaft along the guide shaft seat toward the battery with the tab to be flattened in the middle, and further achieve precise positioning of the battery with the tab to be flattened through the flattening opening and the center needle of the flattening component. After the battery tab is flattened, the battery end tab can be accurately positioned and flattened to ensure the flatness of the battery tab, solve the problem of uneven surface after the battery tab is flattened, thereby ensuring the contact effect of each layer of tabs, ensuring the current collection effect and welding quality, and thus improving the battery quality; at the same time, the equipment has high adjustability and scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of this patent, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of this patent. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, including:

[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 structure of a flattening unit in a tab flattening device disclosed in an embodiment of the present patent;

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

[0013] Explanation of numbers in the figure: 1-flattening unit, 2-equipment base, 201-first adjustment hole, 3-servo electric cylinder, 4-limiting piece, 5-guide shaft, 6-guide shaft mounting plate, 7-guide shaft seat, 8-flattening piece mounting seat, 801-third adjustment hole, 9-flattening piece, 901-flattening opening, 902-center needle, 903-fourth adjustment hole, 10-base adjustment plate, 1001-second adjustment hole, 11-first adjusting screw, 12-second adjusting screw. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0015] See also Figure 1-3 , the embodiment of the patent discloses a tab flattening device, including a pair of flattening units 1, the battery whose tab is to be flattened is located between the pair of flattening units, the flattening unit 1 includes a device base 2, a servo electric cylinder 3 and a guide shaft mounting plate 6 arranged on the device base 2; the guide shaft mounting plate 6 is connected to the servo electric cylinder 3; a guide shaft seat 7 is arranged on the guide shaft mounting plate 6, and a guide shaft 5 is passed through the guide shaft seat 7; the servo electric cylinder 3 is driven and connected to a flattening piece mounting seat 8, the flattening piece mounting seat 8 is connected to the guide shaft 5, and a flattening piece 9 is arranged on the flattening piece mounting seat 8, and the flattening piece 9 has a flattening opening 901 and a center needle 902; specifically, the flattening opening 901 corresponds to the battery whose tab is to be flattened, and the center needle 902 corresponds to the battery whose tab is to be flattened The center of the flat-ear battery corresponds to that of the battery, and the center needle 902 is inserted into the center of the battery, which can effectively protect the center of the battery and realize precise positioning and flattening; thereby, the servo electric cylinder 3 of a pair of flattening units 1 drives the flattening component mounting seat 8 to drive the flattening component 9 to move along the guide shaft 5 along the guide shaft seat 7 toward the battery direction of the middle ear to be flattened, and further through the flattening opening 901 of the flattening component 9 and the center needle 902, the battery to be flattened can be precisely positioned and flattened at the same time, and after the battery ear is flattened, the battery end face ear can be precisely positioned and flattened to ensure the flatness of the battery ear, and solve the problem of uneven surface after the battery ear is flattened, thereby ensuring the contact effect of each layer of the ear, ensuring the current collection effect and welding quality, and thus improving the battery quality.

[0016] For further information, see Figure 2In this embodiment, a base adjustment plate 10 is arranged under the device base 2; the device 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, and a first adjustment screw 11 is arranged in the first adjustment hole 201 and the second adjustment hole 1001; by adjusting the first adjustment screw 11, the device base 2 is adjusted to move left and right, thereby driving the overall left and right movement of the tab flattening device in this embodiment, thereby improving the adjustability and scalability of the device.

[0017] For further information, see Figure 2-3 In this embodiment, the flattening member mounting seat 8 has a third adjustment hole 801, and the flattening member 9 has a fourth adjustment hole 903 corresponding to the third adjustment hole 801. The third adjustment hole 801 and the fourth adjustment hole 903 are provided with a second adjustment screw 12; the flattening member 9 is adjusted to move up and down by adjusting the second adjustment screw 12, thereby improving the adjustability and scalability of the equipment.

[0018] For further information, see Figure 2 In this embodiment, a limiting member 4 is provided on the guide shaft 5.

[0019] The above description is only an implementation method of this patent, and does not limit the patent scope of this patent. Any equivalent structure or equivalent process transformation made using the contents of this patent specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of this patent.

Claims

1. A tab flattening device, comprising a pair of flattening units (1), wherein the flattening unit (1) comprises a device base (2), a servo electric cylinder (3) and a guide shaft mounting plate (6) arranged on the device base (2); the guide shaft mounting plate (6) is connected to the servo electric cylinder (3); a guide shaft seat (7) is arranged on the guide shaft mounting plate (6), and a guide shaft (5) is passed through the guide shaft seat (7); the characteristics are: The servo electric cylinder (3) is driven to be connected to a flattening piece mounting seat (8), the flattening piece mounting seat (8) is connected to the guide shaft (5), a flattening piece (9) is arranged on the flattening piece mounting seat (8), and the flattening piece (9) has a flattening opening (901) and a center needle (902); the flattening piece mounting seat (8) is driven by the servo electric cylinder (3) to drive the flattening piece (9) to move along the guide shaft seat (7) along with the guide shaft (5).

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

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

4. The tab flattening device according to claim 1, characterized in that: The flattening member mounting seat (8) has a third adjustment hole (801), the flattening member (9) has a fourth adjustment hole (903) corresponding to the third adjustment hole (801), and second adjustment screws (12) are provided in the third adjustment hole (801) and the fourth adjustment hole (903).

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

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