Battery cell tab bending and shaping device

Abstract

The utility model belongs to the technical field of battery processing, and particularly relates to a battery cell tab bending and shaping device which is characterized in that a first driving mechanism drives a second driving mechanism to transversely move, and the second driving mechanism drives a shaping mechanism to ascend and descend; in the working process, the shaping mechanism can be conveyed to any area needing to be bent and shaped through the first driving mechanism and the second driving mechanism, and meanwhile the shaping mechanism can be driven by the first driving mechanism to move left and right in a reciprocating mode; firstly, the second driving mechanism drives the shaping mechanism to the side where the tab needs to be bent, the shaping mechanism can be moved to the left side or the right side of the battery cell tab according to needs, then the first driving mechanism drives the shaping mechanism to bend the battery cell tab, and the shaping mechanism does not move after bending. And the third driving piece drives the first shaping part or the second shaping part to descend to shape the tab, so that the flatness of the battery cell tab after bending is improved, and subsequent welding is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery processing, and in particular relates to a battery core tab bending and shaping device. Background Art

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc. Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] In the production process of lithium battery packs, it is necessary to bend and roll the pole ears through bending and shaping equipment to make them close to the busbar copper sheet, and finally weld the pole ears and the busbar copper sheet (i.e., battery cells) together through welding devices. However, the existing bending and shaping equipment has low driving efficiency for the bending mechanism and the flattening mechanism, and the bending mechanism and the flattening mechanism cannot be quickly moved to the welding position of the lithium battery pack, which reduces the welding efficiency. Moreover, after the single-sided bending and rolling of the lithium battery pack is completed, the other side needs to be bent and rolled flat. At this time, manual operation is required to achieve the clamping, fixing and rotational reversing of the lithium battery pack, which has poor clamping, fixing and rotational reversing effects on the lithium battery pack, reducing work efficiency. For this reason, we have introduced a bending and shaping device for battery pole ears. Utility Model Content

[0004] The purpose of the utility model is to provide a battery cell tab bending and shaping device in view of the deficiencies in the prior art, so as to solve the technical problem that the battery needs to be manually rearranged after the tab on one side of the battery is bent by the prior battery cell tab bending and shaping device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A battery cell tab bending and shaping device comprises a first driving mechanism and a second driving mechanism, wherein the second driving mechanism is arranged on the first driving mechanism, and the second driving mechanism is driven to move by the first driving mechanism, and a shaping mechanism is arranged on the second driving mechanism, and the shaping mechanism comprises a first shaping part and a second shaping part, and a bending block is also arranged on the shaping mechanism, and the bending block is arranged between the first shaping part and the second shaping part, and the bending block protrudes from the first shaping part and the second shaping part, and the first shaping part and the second shaping part are both provided with a third driving member, and the first shaping part and the second shaping part are driven to rise and fall by the third driving member.

[0007] Furthermore, the first driving mechanism includes a first fixed plate, a first driving member is fixedly arranged on the first fixed plate, a screw slide is arranged at the output end of the first driving member, the screw slide is fixedly connected to the second driving mechanism, and the second driving mechanism is driven to slide by the first driving member.

[0008] Furthermore, a first slide rail and a first slider are provided on both sides of the first driving member. The first slide rail is provided on the first fixing plate, and the first slider is fixedly connected to the second driving mechanism.

[0009] Furthermore, the second driving mechanism includes a second fixed plate, one side of the second fixed plate is fixedly connected to the first slider and the screw slide, a mounting plate is provided on the top of the second fixed plate, a second driving member is provided on the mounting plate, the second driving member is fixedly provided on the mounting plate, and the output end of the second driving member passes through the mounting plate and is connected to the shaping mechanism.

[0010] Furthermore, a second slide rail and a second slider are provided on a side of the second fixing plate facing away from the first driving mechanism, and at least two of the second slide rails and the second slider are provided, and the second slider is connected to the shaping mechanism.

[0011] Furthermore, the shaping mechanism includes a third fixed plate connected to the second slider, a mounting frame is arranged on the third fixed plate, the output end of the second driving member is connected to the top of the mounting frame, a fourth fixed plate is provided in the mounting frame, two fourth fixed plates are provided, the two fourth fixed plates divide the space in the mounting frame into three parts, a bending block is provided between the two fourth fixed plates, the bending block has a bending head, and the bending head is placed outside the mounting frame.

[0012] Furthermore, two third slide rails and a third slider are arranged between the bending block and the fourth fixed plate, and the two third sliders are both connected to the bending block.

[0013] Furthermore, a buffer is provided between the top of the bending block and the mounting frame.

[0014] Furthermore, the first shaping part and the second shaping part are arranged on both sides of the two fourth fixing plates relatively to each other, and the output ends of the two third driving members are both provided with shaping blocks, and the two shaping blocks are arranged relatively to each other and closely to the bending head.

[0015] Further, the first driving member and the second driving member are both driving motors; or the first driving member and the second driving member are both driving cylinders; or the first driving member is a driving motor and the second driving member is a driving cylinder; or the first driving member is a driving cylinder and the second driving member is a driving motor.

[0016] The beneficial effect of the utility model lies in that the utility model provides a battery cell pole ear bending and shaping device, wherein the first driving mechanism drives the second driving mechanism to move laterally, and the second driving mechanism drives the shaping mechanism to rise and fall. During operation, the shaping mechanism can be sent to any area where bending and shaping is required by the first driving mechanism and the second driving mechanism, and at the same time, the shaping mechanism can be driven by the first driving mechanism to reciprocate left and right. When bending is required, the second driving mechanism first drives the shaping mechanism to the side where the pole ear needs to be bent, and the shaping mechanism can be moved to the left or right side of the battery cell pole ear as needed, and then the first driving mechanism drives the shaping mechanism to bend the battery cell pole ear. After bending, the shaping mechanism does not move, and the third driving member drives the first shaping part or the second shaping part to descend to shape the pole ear, thereby improving the flatness of the battery cell pole ear after bending and facilitating subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will refer to the attached Figure 1 to Figure 6 To describe the features, advantages and technical effects of exemplary embodiments of the present utility model.

[0018] Figure 1 It is a schematic diagram of the overall structure of the bending and shaping device in the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the first driving mechanism in the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the second driving mechanism in the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the shaping mechanism in the utility model;

[0022] Figure 5 It is a schematic diagram of the working state of the shaping mechanism in the utility model;

[0023] Figure 6 For the utility model Figure 5 A is a partial enlarged schematic diagram of the middle part.

[0024] In the figure: 1. first driving mechanism; 2. second driving mechanism; 3. shaping mechanism; 4. battery cell tab;

[0025] 11. first fixed plate; 12. first driving member; 13. screw slide; 14. first slide rail; 15. first slide block;

[0026] 21. second fixing plate; 22. mounting plate; 23. second driving member; 24. second slide rail; 25. second slide block;

[0027] 31. first shaping part; 32. second shaping part; 33. bending block; 34. third driving member; 35. third fixing plate; 36. mounting frame; 37. fourth fixing plate; 38. third slide rail; 39. third slide block;

[0028] 311, shaping block; 331, bending head; 361, buffer part. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and multiple situations exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0033] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0034] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0035] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0036] The following is combined with Figure 1 to Figure 6 The utility model is further described in detail, but it is not intended to limit the utility model.

[0037] A bending and shaping device for a battery cell tab 4 comprises a first driving mechanism 1 and a second driving mechanism 2, wherein the second driving mechanism 2 is arranged on the first driving mechanism 1, and the second driving mechanism 2 is driven to move by the first driving mechanism 1, and a shaping mechanism 3 is arranged on the second driving mechanism 2, and the shaping mechanism 3 comprises a first shaping portion 31 and a second shaping portion 32, and a bending block 33 is also arranged on the shaping mechanism 3, and the bending block 33 is arranged between the first shaping portion 31 and the second shaping portion 32, and the bending block 33 protrudes from the first shaping portion 31 and the second shaping portion 32, and the first shaping portion 31 and the second shaping portion 32 are both provided with a third driving member 34, and the first shaping portion 31 and the second shaping portion 32 are driven to rise and fall by the third driving member 34.

[0038] Specifically, in the present embodiment, the first driving mechanism 1 drives the second driving mechanism 2 to move laterally, while the second driving mechanism 2 drives the shaping mechanism 3 to rise and fall. During operation, the shaping mechanism 3 can be sent to any area where bending and shaping is required through the first driving mechanism 1 and the second driving mechanism 2. At the same time, the shaping mechanism 3 can be driven by the first driving mechanism 1 to reciprocate left and right. When bending is required, the second driving mechanism 2 first drives the shaping mechanism 3 to the side where the pole ear needs to be bent. The shaping mechanism 3 can be moved to the left or right side of the battery cell pole ear 4 as needed. Then, the first driving mechanism 1 drives the shaping mechanism 3 to bend the battery cell pole ear 4. After bending, the shaping mechanism 3 does not move, and the third driving member 34 drives the first shaping part 31 or the second shaping part 32 to descend to shape the battery cell pole ear 4, thereby improving the flatness of the battery cell pole ear 4 after bending, which is convenient for subsequent welding.

[0039] In some embodiments, the first driving mechanism 1 includes a first fixed plate 11, on which a first driving member 12 is fixedly disposed, and a screw slide 13 is disposed at the output end of the first driving member 12. The screw slide 13 is fixedly connected to the second driving mechanism 2, and the second driving mechanism 2 is driven to slide through the first driving member 12.

[0040] Specifically, in this embodiment, the first driving member 12 is a servo motor. Since the first driving member 12 needs to move the shaping mechanism 3 left and right to one side of the battery cell tab 4, but since the material of the battery cell tab 4 is relatively fragile, it is necessary to improve the accuracy of the movement of the shaping mechanism 3, and the movement accuracy of the servo motor is higher than that of a general motor.

[0041] At the same time, a screw slide 13 is arranged at the output end of the first driving member 12, and the screw slide 13 is connected to the second driving mechanism 2. The screw slide 13 can make the second driving mechanism 2 and the shaping mechanism 3 move more smoothly to prevent shaking.

[0042] In some embodiments, a first slide rail 14 and a first slider 15 are further provided on both sides of the first driving member 12 . The first slide rail 14 is provided on the first fixing plate 11 , and the first slider 15 is fixedly connected to the second driving mechanism 2 .

[0043] Specifically, in this embodiment, a first slide rail 14 and a first slider 15 are provided on both sides of the first driving member 12. The first driving member 12 is used to connect the first fixed plate 11 and the second driving mechanism 2 to fix the second driving mechanism 2. At the same time, when the first driving member 12 drives the second driving mechanism 2 to move, the first slide rail 14 and the first slider 15 can guide and limit the second driving mechanism 2 to prevent the second driving mechanism 2 from moving out of position.

[0044] In some embodiments, the second driving mechanism 2 includes a second fixed plate 21, one side of the second fixed plate 21 is fixedly connected to the first slider 15 and the screw slide 13, a mounting plate 22 is provided on the top of the second fixed plate 21, a second driving member 23 is provided on the mounting plate 22, the second driving member 23 is fixedly provided on the mounting plate 22, and the output end of the second driving member 23 passes through the mounting plate 22 and is connected to the shaping mechanism 3.

[0045] Specifically, in the present embodiment, a through hole is provided on the mounting plate 22, the main body of the second driving member 23 is fixedly connected to the mounting plate 22, and the output end of the second driving member 23 extends from the through hole and is connected to the shaping mechanism 3, and the second driving mechanism 2 is used to drive the shaping mechanism 3 to move up and down. When the battery cell tab 4 is bent, it is necessary to move the shaping mechanism 3 from one end of the battery cell tab 4 to the other end of the battery cell tab 4, and the shaping mechanism 3 needs to be raised as a whole by the second driving mechanism 2 to prevent the battery cell tab 4 from being damaged or even broken due to the movement of the shaping mechanism 3.

[0046] In some embodiments, a second slide rail 24 and a second slider 25 are provided on the side of the second fixing plate 21 facing away from the first driving mechanism 1 . There are at least two second slide rails 24 and second sliders 25 , and the second slider 25 is connected to the shaping mechanism 3 .

[0047] Specifically, a second slide rail 24 and a second slider 25 are provided on the second fixing plate 21 for guiding and limiting the shaping mechanism 3 when the second driving member 23 moves the shaping mechanism 3, so as to prevent the shaping mechanism 3 from being displaced when ascending or descending.

[0048] In some embodiments, the shaping mechanism 3 includes a third fixed plate 35 connected to the second slider 25, and a mounting frame 36 is arranged on the third fixed plate 35. The output end of the second driving member 23 is connected to the top of the mounting frame 36. A fourth fixed plate 37 is provided in the mounting frame 36. Two fourth fixed plates 37 are provided. The two fourth fixed plates 37 divide the space in the mounting frame 36 into three parts. A bending block 33 is provided between the two fourth fixed plates 37. The bending block 33 has a bending head 331, and the bending head 331 is placed outside the mounting frame 36.

[0049] Specifically, the third fixed plate 35 is connected to the second slider 25, and a "door"-shaped mounting frame 36 is provided on the third fixed plate 35. The third fixed plate 35 and the mounting frame 36 are limited and guided by the second slider 25 when lifting and lowering to prevent the third fixed plate 35 from moving out of position. The top of the fourth fixed plate 37 is fixedly connected to the top of the inner side of the mounting frame 36, and the upper part of the side of the fourth fixed plate 37 is fixedly connected to the third fixed plate 35. The bending block 33 is arranged between the two fourth fixed plates 37 to limit the bending block 33 and prevent the position of the bending block 33 from shifting, thereby affecting the bending consistency of the battery cell tab 4. Since the mounting frame 36 occupies a large area, the bending block 33 needs to protrude from the mounting frame 36.

[0050] In this embodiment, the cross-sectional width of the bending block 33 is smaller than the smallest width between the battery cell tabs 4 .

[0051] In some embodiments, two third slide rails 38 and a third slider 39 are disposed between the bending block 33 and the fourth fixing plate 37 , and the two third sliders 39 are both connected to the bending block 33 .

[0052] Specifically, since the length of the battery cell tabs 4 is not fixed and some battery cell tabs 4 are too long, the bending block 33 is designed to be a movable and retractable structure in this embodiment. When it is necessary to bend some battery cells with longer battery cell tabs 4, the bending block 33 can be pulled out to prevent the mounting frame 36 from hitting other battery cell tabs 4.

[0053] In some embodiments, a buffer member 361 is disposed between the top of the bending block 33 and the mounting frame 36 .

[0054] Specifically, in the present embodiment, the buffer member 361 is a buffer spring, which has memory. When faced with some adapter plates of varying thicknesses or pole ears with shorter lengths, there is no need to manually adjust the bending block 33. Only the bending block 33 needs to be pressed onto the adapter plate. By adding the buffer member 361, work efficiency can be improved without the need for manual adjustment, and the bending block 33 can be prevented from damaging the adapter plate.

[0055] In some embodiments, the first shaping portion 31 and the second shaping portion 32 are relatively arranged on both sides of the two fourth fixing plates 37, and the output ends of the two third driving members 34 are both provided with shaping blocks 311, and the two shaping blocks 311 are arranged opposite to and close to the bending head 331.

[0056] Specifically, when bending the battery cell tab 4, the positive or negative electrodes of two adjacent battery cells need to be welded, so the bending directions of the two positive or negative electrodes are different. By setting the first shaping part 31 and the second shaping part 32 on both sides of the bending block 33, the tab can be flattened after being bent by the bending block 33. A shaping block 311 is set at the output end of the third driving member 34, and the shaping block 311 is driven by the third driving member 34 to move up and down. The shaping block 311 is set as close to the bending block 33 as possible to reduce the space occupied by the bending block 33 and the shaping block 311, so as to facilitate the simultaneous operation of the bending block 33 and the shaping block 311.

[0057] It should be noted that, under normal circumstances, after the bending block 33 bends the battery cell tab 4, the shaping block 311 on one side descends to flatten the tab. However, when the tab is long, the bending block 33 can also bend the battery cell tab 4, and then the first driving member 12 drives the bending block 33 to move to the middle of the tab, and then the two shaping blocks 311 descend at the same time to shape the tab.

[0058] In some embodiments, the first driving member 12 and the second driving member 23 are both driving motors or driving cylinders or a combination of driving motors and driving cylinders.

[0059] Specifically, in the present embodiment, since a certain movement accuracy is required when the shaping mechanism 3 is moved left and right, the first driving member 12 is a servo motor. When the second driving member 23 drives the shaping mechanism 3 to rise and fall, since a buffer spring is provided between the bending block 33 and the mounting frame 36, the accuracy required for the movement of the second driving member 23 does not need to be very high, and a low-cost telescopic cylinder can be used.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0061] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A battery cell tab bending and shaping device, characterized in that: The invention comprises a first driving mechanism and a second driving mechanism, wherein the second driving mechanism is arranged on the first driving mechanism, and the second driving mechanism is driven to move by the first driving mechanism, and a shaping mechanism is arranged on the second driving mechanism, and the shaping mechanism comprises a first shaping part and a second shaping part, and a bending block is also arranged on the shaping mechanism, and the bending block is arranged between the first shaping part and the second shaping part, and the bending block protrudes from the first shaping part and the second shaping part, and the first shaping part and the second shaping part are both provided with a third driving member, and the first shaping part and the second shaping part are driven to rise and fall by the third driving member.

2. The battery cell tab bending and shaping device according to claim 1, characterized in that: The first driving mechanism comprises a first fixed plate, a first driving member is fixedly arranged on the first fixed plate, a screw slide is arranged at the output end of the first driving member, the screw slide is fixedly connected to the second driving mechanism, and the second driving mechanism is driven to slide by the first driving member.

3. The battery cell tab bending and shaping device according to claim 2, characterized in that: A first slide rail and a first slider are also provided on both sides of the first driving member. The first slide rail is provided on the first fixing plate, and the first slider is fixedly connected to the second driving mechanism.

4. The battery cell tab bending and shaping device according to claim 3, characterized in that: The second driving mechanism includes a second fixed plate, one side of the second fixed plate is fixedly connected to the first slider and the screw slide, a mounting plate is provided on the top of the second fixed plate, a second driving member is provided on the mounting plate, the second driving member is fixedly provided on the mounting plate, and the output end of the second driving member passes through the mounting plate and is connected to the shaping mechanism.

5. The battery cell tab bending and shaping device according to claim 4, characterized in that: A second slide rail and a second slider are disposed on a side of the second fixing plate facing away from the first driving mechanism. At least two of the second slide rails and the second slider are disposed. The second slider is connected to the shaping mechanism.

6. The battery cell tab bending and shaping device according to claim 5, characterized in that: The shaping mechanism includes a third fixed plate connected to the second slider, a mounting frame is arranged on the third fixed plate, an output end of the second driving member is connected to the top of the mounting frame, a fourth fixed plate is provided in the mounting frame, two fourth fixed plates are provided, the two fourth fixed plates divide the space in the mounting frame into three parts, a bending block is provided between the two fourth fixed plates, the bending block has a bending head, and the bending head is placed outside the mounting frame.

7. The battery cell tab bending and shaping device according to claim 6, characterized in that: Two third slide rails and a third sliding block are arranged between the bending block and the fourth fixing plate, and the two third sliding blocks are both connected to the bending block.

8. The battery cell tab bending and shaping device according to claim 7, characterized in that: A buffer is arranged between the top of the bending block and the mounting frame.

9. The battery cell tab bending and shaping device according to claim 8, characterized in that: The first shaping part and the second shaping part are arranged on both sides of the two fourth fixing plates relatively, and the output ends of the two third driving members are both provided with shaping blocks, and the two shaping blocks are arranged relatively and closely to the bending head.

10. The battery cell tab bending and shaping device according to claim 9, characterized in that: The first driving member and the second driving member are both driving motors; or the first driving member and the second driving member are both driving cylinders; Or the first driving member is a driving motor, and the second driving member is a driving cylinder; Or the first driving member is a driving cylinder, and the second driving member is a driving motor.

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