Tab shaping mechanism and device

Abstract

The utility model relates to the technical field of battery production, and discloses a tab shaping mechanism and device, the tab shaping mechanism comprises a first tab shaping assembly and a second tab shaping assembly which are oppositely arranged on two surfaces of a tab to be shaped; wherein the first tab shaping assembly comprises a first shaping driving unit and a first tab shaping unit, and the first tab shaping unit corresponds to one surface of a tab to be shaped and is connected to the movable end of the first shaping driving unit; the second tab shaping assembly comprises a second shaping driving unit and a second tab shaping unit which corresponds to the other surface of the tab to be shaped and is connected to the movable end of the second shaping driving unit; and the first tab shaping unit and the second tab shaping unit are split type tab shaping units. The utility model provides a tab shaping mechanism which can effectively improve the matching degree of positive and negative tabs of a battery cell and a BMU bonding pad and guarantee the quality and stability of tab shaping.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a tab shaping mechanism and device. Background Technology

[0002] During battery assembly, the tabs of the battery cell need to be zig-shaped, that is, the originally flat tabs need to be shaped into a stepped tab structure so that the tabs can be highly matched with the BMU solder pads, thereby ensuring the quality and stability of the tab-BMU soldering. However, existing tab shaping devices generally have the following problems in the process of shaping the tabs:

[0003] 1. The device generally uses the same set of shaping blocks to shape the positive and negative tabs in a battery cell. Due to the different materials of the positive and negative tabs, the springback coefficients of the positive and negative tabs will also be different. If the same set of shaping blocks is used to shape the positive and negative tabs in a battery cell, it will often result in different springback angles of the positive and negative tabs, which cannot be effectively matched with the BMU pads.

[0004] 2. When the device shapes the electrode tab, the shaping block does not have a certain limiting structure to restrict the shaping process. Therefore, the shaping block may directly shear the electrode tab, resulting in the electrode tab breaking.

[0005] 3. After the device reshapes the tabs, the tabs spring back, and the angle cannot be well matched with the BMU pads.

[0006] Therefore, researching a technology that can effectively solve the above problems has a profound impact on the production of battery cells. Utility Model Content

[0007] To address the shortcomings of the prior art, this invention provides a tab shaping mechanism that utilizes a separate first tab shaping unit and a second tab shaping unit to shape the positive and negative tabs on the battery cell separately. Compared to the prior art, which uses the same set of shaping blocks to shape the positive and negative tabs in a single battery cell, this mechanism can meet the shaping needs of positive and negative tabs made of different materials, reducing the probability of different springback angles caused by different springback coefficients of positive and negative tabs made of different materials, thereby effectively improving the matching degree between the positive and negative tabs of the battery cell and the BMU pads.

[0008] Meanwhile, the first electrode shaping unit and the second electrode shaping unit are controlled and adjusted by corresponding shaping drive units. The stroke of the first electrode shaping unit and the second electrode shaping unit during the shaping process can be limited to prevent the first electrode shaping unit and the second electrode shaping unit from directly shearing the electrode due to stroke overload during the electrode shaping process, thereby causing the electrode to break. This effectively ensures the quality and stability of electrode shaping.

[0009] This utility model also provides a tab shaping device, which is assembled using the above-mentioned tab shaping mechanism, device control cabinet, product positioning fixture and product positioning mechanism. It can effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads, ensure the quality and stability of tab shaping, and thus effectively improve the overall processing quality and stability of the battery cell.

[0010] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0011] In a first aspect, this utility model provides an electrode ear shaping mechanism, comprising a first electrode ear shaping component and a second electrode ear shaping component disposed opposite to each other on both sides of the electrode ear to be shaped; wherein...

[0012] The first electrode shaping assembly includes a first shaping driving unit and a first electrode shaping unit corresponding to one side of the electrode to be shaped and connected to the movable end of the first shaping driving unit;

[0013] The second electrode shaping assembly includes a second shaping drive unit, and a second electrode shaping unit corresponding to the other side of the electrode to be shaped and connected to the movable end of the second shaping drive unit;

[0014] Both the first electrode shaping unit and the second electrode shaping unit are separate electrode shaping units.

[0015] As one preferred embodiment, the first tab shaping unit includes a first linkage slide rail slider group, a first shaping block mounting plate connected to the first shaping drive unit and disposed on the slider of the first linkage slide rail slider group, a first shaping block disposed on the first shaping block mounting plate for shaping one of the tabs of the battery cell, and a second shaping block disposed on the first shaping block mounting plate for shaping the other tab of the battery cell.

[0016] As one preferred embodiment, the second electrode shaping unit includes a second linkage slide rail slider group, a second shaping block mounting plate connected to the second shaping drive unit and disposed on the slider of the second linkage slide rail slider group, a third shaping block corresponding to the first shaping block and disposed on the second shaping block mounting plate, and a fourth shaping block corresponding to the second shaping block and disposed on the second shaping block mounting plate.

[0017] As one preferred embodiment, both the first shaping block and the second shaping block include a first shaping block body and a tab shaping eave protruding from the first shaping block body.

[0018] As a preferred embodiment, both the third shaping block and the fourth shaping block include a second shaping block body and an electrode receiving groove formed on the second shaping block body.

[0019] As one preferred embodiment, the pressing surfaces of the first shaping block and the third shaping block, and the pressing surfaces of the second shaping block and the fourth shaping block, form an angle α with the plane containing the tab to be shaped, wherein 1°≤α≤10°.

[0020] As a preferred embodiment, the tab shaping mechanism further includes a mechanism adjustment component connected to the first tab shaping component and the second tab shaping component for adjusting the shaping position.

[0021] As one preferred embodiment, the mechanism adjustment assembly includes an adjustment mechanism mounting plate connected to the first tab shaping assembly and the second tab shaping assembly, and a mechanism adjustment unit connected to the adjustment mechanism mounting plate for adjusting the overall position of the mechanism.

[0022] Secondly, this utility model provides an electrode ear shaping device, comprising:

[0023] Device control cabinet;

[0024] The product positioning fixture is installed on the control cabinet of the device and is used for the initial positioning of the product to be shaped.

[0025] The product positioning mechanism, corresponding to the product positioning fixture and installed on the device control cabinet, is used for the complete positioning of the product to be shaped.

[0026] And the tab shaping mechanism described above, corresponding to the product positioning mechanism and installed on the device control cabinet, is used for shaping the battery cell tabs.

[0027] As one preferred embodiment, the product positioning mechanism includes a first product positioning component disposed corresponding to one side of the product positioning fixture, and a second product positioning component disposed corresponding to the other adjacent side of the product positioning fixture.

[0028] Both the first product positioning component and the second product positioning component include a lifting drive unit disposed in the device control cabinet, a clamping drive unit disposed on the movable end of the lifting drive unit, and a product limiting plate disposed on the movable end of the clamping drive unit parallel to the side of the product positioning fixture.

[0029] In summary, this utility model has at least the following advantages:

[0030] 1. The tab shaping mechanism provided by this utility model uses a split first tab shaping unit and a second tab shaping unit to shape the positive and negative tabs on the battery cell separately. Compared with the existing technology that uses the same set of shaping blocks to shape the positive and negative tabs in a battery cell, it can meet the shaping of positive and negative tabs of different materials, reduce the probability of different rebound angles caused by different rebound coefficients of positive and negative tabs of different materials, and effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads.

[0031] 2. The electrode shaping mechanism provided by this utility model, wherein the first electrode shaping unit and the second electrode shaping unit are controlled and adjusted by a corresponding shaping drive unit, can limit the stroke of the first electrode shaping unit and the second electrode shaping unit during the shaping process, and prevent the first electrode shaping unit and the second electrode shaping unit from directly shearing the electrode due to stroke overload during the electrode shaping process, thereby causing the electrode to break, effectively ensuring the quality and stability of electrode shaping.

[0032] 3. The tab shaping mechanism provided by this utility model has a certain angle between the pressing and forming surfaces of the first and third shaping blocks, and the pressing and forming surfaces of the second and fourth shaping blocks, and the plane where the tab to be shaped is located. Compared with the design where the pressing and forming surfaces are parallel to the plane where the tab is located, this can effectively alleviate the degree of tab springback after the shaping blocks shape the tab, so as to further improve the matching degree between the tab and the BMU pad.

[0033] 4. The tab shaping device provided by this utility model is assembled using the above-mentioned tab shaping mechanism, device control cabinet, product positioning fixture and product positioning mechanism. It can effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads, ensure the quality and stability of tab shaping, and thus effectively improve the overall processing quality and stability of the battery cell. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the tab shaping mechanism in Embodiment 1 of this utility model.

[0035] Figure 2 This is a schematic diagram of the assembly structure of the first electrode ear shaping component, the second electrode ear shaping component, and the adjustment mechanism mounting plate in Embodiment 1 of this utility model.

[0036] Figure 3 This is a schematic diagram of the structure of the first shaping block, the second shaping block, the third shaping block, and the fourth shaping block in Embodiment 1 of this utility model.

[0037] Figure 4 This is a schematic diagram of the overall structure of the tab shaping device in Embodiment 2 of this utility model.

[0038] Figure 5 This is a schematic diagram of the structure of the first product positioning component and the second product positioning component in Embodiment 2 of this utility model.

[0039] Figure label:

[0040] 10. Ear reshaping mechanism;

[0041] 100. First tab shaping assembly; 110. First shaping drive unit; 120. First tab shaping unit; 121. First linkage slide rail slider group; 122. First shaping block mounting plate; 123. First shaping block; 124. Second shaping block; 1201. First shaping block body; 1202. Tab shaping eaves;

[0042] 200. Second electrode tab shaping assembly; 210. Second shaping drive unit; 220. Second electrode tab shaping unit; 221. Second linkage slide rail slider group; 222. Second shaping block mounting plate; 223. Third shaping block; 224. Fourth shaping block; 2201. Second shaping block body; 2202. Electrode receiving groove;

[0043] 300. Mechanism adjustment assembly; 310. Adjustment mechanism mounting plate; 320. Mechanism adjustment unit;

[0044] 20. Device control cabinet;

[0045] 30. Product positioning fixture;

[0046] 40. Product positioning mechanism;

[0047] 41. First product positioning component; 42. Second product positioning component; 411. Lifting drive unit; 412. Clamping drive unit; 413. Product limit plate. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0049] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0050] Example 1:

[0051] Please see the appendix Figure 1 The electrode shaping mechanism 10 of this utility model embodiment includes a first electrode shaping component 100 and a second electrode shaping component 200 disposed opposite to each other on both sides of the electrode to be shaped; wherein, the first electrode shaping component 100 includes a first shaping driving unit 110 and a first electrode shaping unit 120 corresponding to one side of the electrode to be shaped and connected to the movable end of the first shaping driving unit 110; the second electrode shaping component 200 includes a second shaping driving unit 210 and a second electrode shaping unit 220 corresponding to the other side of the electrode to be shaped and connected to the movable end of the second shaping driving unit 210.

[0052] The first shaping drive unit 110 and the second shaping drive unit 210 provide the power source for electrode shaping, driving the connected tab shaping units to move closer or further apart to achieve pressing and shaping of the electrode. Preferably, both the first shaping drive unit 110 and the second shaping drive unit 210 are telescopic cylinder drive units. The first tab shaping unit 120 and the second tab shaping unit 220 are combined to simultaneously press both sides of the tab to complete the tab shaping. Furthermore, both the first tab shaping unit 120 and the second tab shaping unit 220 are separate tab shaping units, which can separately shape the positive and negative tabs on the battery cell. Compared with the prior art equipment that uses the same set of shaping blocks to shape the positive and negative tabs in a battery cell, this can meet the shaping needs of positive and negative tabs of different materials, reduce the probability of different springback angles caused by different springback coefficients of positive and negative tabs of different materials, and effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads.

[0053] The tab shaping mechanism 10 in this embodiment not only utilizes a split first tab shaping unit 120 and a second tab shaping unit 220 to shape the positive and negative tabs on the battery cell separately, effectively improving the matching degree between the positive and negative tabs of the battery cell and the BMU pads; but also controls and adjusts the first tab shaping unit 120 and the second tab shaping unit 220 through corresponding shaping drive units, which can limit the stroke of the first tab shaping unit 120 and the second tab shaping unit 220 during the shaping process, preventing the first tab shaping unit 120 and the second tab shaping unit 220 from directly shearing the tabs due to stroke overload during the tab shaping process, thereby causing the tabs to break, effectively ensuring the quality and stability of the tab shaping.

[0054] Please refer to the appendix for further details. Figure 2In some embodiments, the first tab shaping unit 120 includes a first linkage slide rail slider group 121, a first shaping block mounting plate 122 connected to the first shaping drive unit 110 and disposed on the slider of the first linkage slide rail slider group 121, a first shaping block 123 disposed on the first shaping block mounting plate 122 for shaping one of the tabs of the battery cell, and a second shaping block 124 disposed on the first shaping block mounting plate 122 for shaping the other tab of the battery cell. The second tab shaping unit 220 includes a second linkage slide rail slider group 221, a second shaping block mounting plate 222 connected to the second shaping drive unit 210 and disposed on the slider of the second linkage slide rail slider group 221, a third shaping block 223 corresponding to the first shaping block 123 and disposed on the second shaping block mounting plate 222, and a fourth shaping block 224 corresponding to the second shaping block 124 and disposed on the second shaping block mounting plate 222.

[0055] The first shaping block 123 and the second shaping block 124 correspond to the positive and negative tabs of the battery cell and are both mounted on the first shaping block mounting plate 122. The third shaping block 223 and the fourth shaping block 224 are both mounted on the second shaping block mounting plate 222, with the third shaping block 223 corresponding to the first shaping block 123 and the fourth shaping block 224 corresponding to the second shaping block 124. When the first shaping block mounting plate 122 and the second shaping block mounting plate 222 move along the slide rail of the corresponding linkage slide rail slider group under the power drive of the corresponding shaping drive unit connected to them, the two shaping blocks mounted on them can move simultaneously to achieve simultaneous shaping of the positive and negative tabs of the battery cell and improve the efficiency of battery cell tab shaping.

[0056] Please refer to the appendix for further details. Figure 3 In some embodiments, the first shaping block 123 and the second shaping block 124 both include a first shaping block body 1201 and an electrode tab shaping eave 1202 protruding from the first shaping block body 1201; the third shaping block 223 and the fourth shaping block 224 both include a second shaping block body 2201 and an electrode receiving groove 2202 formed on the second shaping block body 2201. Further, the electrode tab shaping eave 1202 is correspondingly disposed on the sides of the second shaping block body 2201 and the electrode receiving groove 2202.

[0057] When the battery cell tab is placed in the electrode receiving groove 2202 of the third shaping block 223 and the fourth shaping block 224, the electrode receiving groove 2202 can initially limit its movement to prevent the battery cell tab from shifting during the subsequent shaping process, effectively improving the quality and stability of the battery cell shaping. Subsequently, the first shaping block 123 and the second shaping block 124 move towards the electrode receiving groove 2202 until the two adjacent surfaces of the first shaping block body 1201 and the second shaping block body 2201 are in contact. At this time, the tab shaping eaves 1202 protruding from the first shaping block body 1201 can bend and shape the battery cell tab towards the side adjacent to the second shaping block body 2201, so that the tab is shaped from a straight structure to a Z-shaped structure.

[0058] Preferably, the pressing surfaces of the first shaping block 123 and the third shaping block 223, and the pressing surfaces of the second shaping block 124 and the fourth shaping block 224, form an angle α with the plane containing the tab to be shaped, wherein 1°≤α≤10°; as shown in the attached figure. Figure 3 As shown. After the battery cell tabs are shaped, there is usually a certain amount of springback. That is, the part of the tab located in the electrode receiving groove 2202 will bend excessively towards the third shaping block 223 and the fourth shaping block 224. Therefore, the design of the pressing and forming surface of the two shaping blocks forming a certain angle with the plane where the tab to be shaped is located can effectively alleviate the degree of tab springback after the shaping blocks shape the tabs, compared with the design where the pressing and forming surface is parallel to the plane where the tab is located, so as to further improve the matching degree between the tab and the BMU pad.

[0059] Please refer to the appendix for further details. Figure 1 In some embodiments, the tab shaping mechanism 10 further includes a mechanism adjustment component 300 connected to the first tab shaping component 100 and the second tab shaping component 200 for adjusting the shaping position. This component can move the first tab shaping component 100 and the second tab shaping component 200 closer to or further away from the battery cell tab to shape it. Further, the mechanism adjustment component 300 includes an adjustment mechanism mounting plate 310 connected to the first tab shaping component 100 and the second tab shaping component 200, and a mechanism adjustment unit 320 connected to the adjustment mechanism mounting plate 310 for adjusting the overall position of the mechanism. Preferably, the mechanism adjustment unit 320 is a micrometer fine-tuning platform.

[0060] Example 2:

[0061] Please see the appendix Figure 4The tab shaping device of this utility model embodiment includes a device control cabinet 20 for overall device control, a product positioning fixture 30 disposed on the device control cabinet 20 for preliminary positioning of the product to be shaped, a product positioning mechanism 40 corresponding to the product positioning fixture 30 and disposed on the device control cabinet 20, and a tab shaping mechanism 10 corresponding to the product positioning mechanism 40 and disposed on the device control cabinet 20 as described in Embodiment 1. Preferably, the device control cabinet 20 is a PLC control cabinet in the prior art, which is not the main innovative point of this technology and will not be described in detail here.

[0062] Product positioning mechanism 40 is used for the complete positioning of the product to be shaped; please refer to the appendix for further details. Figure 5 The product positioning mechanism 40 includes a first product positioning component 41 corresponding to one side of the product positioning fixture 30, and a second product positioning component 42 corresponding to the other adjacent side of the product positioning fixture 30. Further, both the first product positioning component 41 and the second product positioning component 42 include a lifting drive unit 411 disposed within the device control cabinet 20, a clamping drive unit 412 disposed on the movable end of the lifting drive unit 411, and a product limiting plate 413 parallel to the side of the product positioning fixture 30 and disposed on the movable end of the clamping drive unit 412. Preferably, both the lifting drive unit 411 and the clamping drive unit 412 are cylinder drive units; they can drive the product limiting plate 413 to move up and down and left and right to adjust the position of the product positioning fixture 30, thereby achieving position adjustment of the battery cell tabs and further effectively improving the accuracy of battery cell tab shaping.

[0063] The tab shaping device in this embodiment is assembled from the tab shaping mechanism 10 in embodiment 1, the device control cabinet 20, the product positioning fixture 30, and the product positioning mechanism 40. It can effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads, ensure the quality and stability of tab shaping, and thus effectively improve the overall quality and stability of battery cell processing.

[0064] As can be seen from the technical solutions of the above embodiments, this utility model provides a tab shaping mechanism, which can not only meet the shaping needs of positive and negative tabs of different materials and reduce the probability of different springback angles caused by different springback coefficients of positive and negative tabs of different materials, thereby effectively improving the matching degree between the positive and negative tabs of the battery cell and the BMU pads; but also prevent the tabs from being sheared and broken during the shaping process, effectively ensuring the quality and stability of tab shaping. This utility model also provides a tab shaping device, which is assembled using the above-mentioned tab shaping mechanism, device control cabinet, product positioning fixture, and product positioning mechanism. It can effectively improve the matching degree between the positive and negative tabs of the battery cell and the BMU pads, ensure the quality and stability of tab shaping, and thus effectively improve the overall quality and stability of battery cell processing.

[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0067] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0068] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0069] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A tab shaping mechanism, characterized in that, It includes a first electrode ear shaping component (100) and a second electrode ear shaping component (200) disposed opposite to each other on both sides of the electrode ear to be shaped; wherein, The first electrode shaping assembly (100) includes a first shaping driving unit (110) and a first electrode shaping unit (120) corresponding to one side of the electrode to be shaped and connected to the movable end of the first shaping driving unit (110); The second electrode ear shaping assembly (200) includes a second shaping drive unit (210) and a second electrode ear shaping unit (220) corresponding to the other side of the electrode ear to be shaped and connected to the movable end of the second shaping drive unit (210); Both the first electrode shaping unit (120) and the second electrode shaping unit (220) are separate electrode shaping units.

2. The tab trimming mechanism according to claim 1, wherein The first tab shaping unit (120) includes a first linkage slide rail slider group (121), a first shaping block mounting plate (122) connected to the first shaping drive unit (110) and disposed on the slider of the first linkage slide rail slider group (121), a first shaping block (123) disposed on the first shaping block mounting plate (122) for shaping one of the tabs of the battery cell, and a second shaping block (124) disposed on the first shaping block mounting plate (122) for shaping the other tab of the battery cell.

3. The electrode ear shaping mechanism according to claim 2, characterized in that, The second electrode shaping unit (220) includes a second linkage slide rail slider group (221), a second shaping block mounting plate (222) connected to the second shaping drive unit (210) and disposed on the slider of the second linkage slide rail slider group (221), a third shaping block (223) corresponding to the first shaping block (123) and disposed on the second shaping block mounting plate (222), and a fourth shaping block (224) corresponding to the second shaping block (124) and disposed on the second shaping block mounting plate (222).

4. The tab trimming mechanism according to claim 3, wherein Both the first shaping block (123) and the second shaping block (124) include a first shaping block body (1201) and a tab shaping eave (1202) protruding from the first shaping block body (1201).

5. The tab trimming mechanism according to claim 3, wherein The third shaping block (223) and the fourth shaping block (224) both include a second shaping block body (2201) and an electrode receiving groove (2202) formed on the second shaping block body (2201).

6. The tab trimming mechanism according to claim 3, wherein The compression molding surfaces of the first shaping block (123) and the third shaping block (223), and the compression molding surfaces of the second shaping block (124) and the fourth shaping block (224), form an angle α with the plane where the electrode tab to be shaped is located, wherein 1°≤α≤10°.

7. The tab trimming mechanism according to claim 1, wherein It also includes a mechanism adjustment component (300) connected to the first tab shaping component (100) and the second tab shaping component (200) for adjusting the shaping position.

8. The electrode ear shaping mechanism according to claim 7, characterized in that, The mechanism adjustment assembly (300) includes an adjustment mechanism mounting plate (310) connected to the first tab shaping assembly (100) and the second tab shaping assembly (200), and a mechanism adjustment unit (320) connected to the adjustment mechanism mounting plate (310) for adjusting the overall position of the mechanism.

9. A tab trimming device characterized by comprising: include: Device control cabinet (20); The product positioning fixture (30) is set on the device control cabinet (20) and is used for the initial positioning of the product to be shaped; The product positioning mechanism (40) corresponds to the product positioning fixture (30) and is set on the device control cabinet (20) for the complete positioning of the product to be shaped; And the tab shaping mechanism (10) as described in any one of claims 1-8, corresponding to the product positioning mechanism (40) and disposed on the device control cabinet (20), for shaping the battery cell tabs.

10. The tab trimming device according to claim 9, wherein The product positioning mechanism (40) includes a first product positioning component (41) corresponding to one side of the product positioning fixture (30), and a second product positioning component (42) corresponding to the other adjacent side of the product positioning fixture (30). Both the first product positioning component (41) and the second product positioning component (42) include a lifting drive unit (411) disposed in the device control cabinet (20), a clamping drive unit (412) disposed on the movable end of the lifting drive unit (411), and a product limiting plate (413) disposed on the movable end of the clamping drive unit (412) parallel to the side of the product positioning fixture (30).

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