A cell connecting sheet bending device

Abstract

The utility model relates to battery production technical field discloses a kind of cell connecting piece bending device, including connecting piece clamping mechanism, to the unnecessary bending part of connecting piece adjacent bending line is clamped;Roller bending mechanism, to drive the bending part of connecting piece around the bending line is bent;Wherein, the connecting piece clamping mechanism includes: first clamping piece, to realize the preliminary location of connecting piece;And second clamping piece, to realize the complete location of connecting piece;And the side edge of the first clamping piece and the second clamping piece adjacent the side of roller bending mechanism is in the same vertical plane with the bending line is located.This utility model provides a kind of cell connecting piece bending device, can effectively reduce the difficulty of worker work, greatly improve the efficiency and quality stability of connecting piece bending, to effectively meet the mass production demand of battery.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a cell connecting piece bending device. Background Technology

[0002] Cell connectors are structures used in new energy batteries to connect the positive and negative electrodes to the battery system. They are primarily used to effectively improve the performance of battery modules and maintain battery safety. During battery production, connectors are generally first connected to the electrodes and then to the battery system. Before being connected to the battery system, the connectors usually need to be bent to facilitate the connection.

[0003] In existing technologies, because the connecting pieces are generally short, they are mainly bent manually using auxiliary jigs. This bending method is not only difficult to operate manually and inefficient, but also results in low quality stability, making it difficult to meet the needs of mass battery production. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a cell connecting piece bending device. It combines a connecting piece clamping mechanism that holds and limits the portion of the connecting piece that does not need to be bent near the bending line with a roller bending mechanism that drives the portion of the connecting piece to be bent around the bending line. This achieves the bending of the connecting piece, replacing the manual bending operation in the prior art, effectively reducing the difficulty of the worker's work, greatly improving the efficiency and quality stability of connecting piece bending, and thus effectively meeting the needs of mass production of batteries.

[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0006] This utility model provides a battery cell connecting piece bending device, including a connecting piece clamping mechanism for clamping the non-bending portion of the connecting piece adjacent to the bending line;

[0007] And a roller bending mechanism, used to drive the part of the connecting piece to be bent to bend around the bending line;

[0008] The connecting piece clamping mechanism includes:

[0009] The first clamping member abuts against one side of the connecting piece near the bend line to achieve initial positioning of the connecting piece;

[0010] And a second clamping member, which is disposed opposite to the first clamping member and abuts against the other side of the connecting piece near the bend line, in order to achieve complete positioning of the connecting piece;

[0011] Furthermore, the sides of both the first clamping member and the second clamping member adjacent to the roller bending mechanism are located in the same vertical plane as the bending line.

[0012] As one preferred embodiment, the connecting piece clamping mechanism further includes:

[0013] A first clamping drive assembly, with its drive end connected to the first clamping member, is used to drive the first clamping member to achieve initial positioning of the connecting piece;

[0014] And a second clamping drive assembly, the drive end of which is connected to the second clamping member to drive the second clamping member to achieve complete positioning of the connecting piece.

[0015] As one preferred embodiment, a first clamping buffer pad is provided on the end of the first clamping member that abuts against the connecting piece.

[0016] The second clamping member has a second clamping buffer pad on the end that abuts against the connecting piece.

[0017] As one preferred embodiment, the length of the end of the first clamping member and the second clamping member that contacts the connecting piece is at least three times the length of the bend line.

[0018] As one preferred embodiment, the roller bending mechanism includes:

[0019] A bending roller rolls against the part of the connecting piece to be bent, thereby driving the part of the connecting piece to be bent to bend around the bending line.

[0020] And a roller drive assembly, the drive end of which is connected to the bending roller to drive the bending roller to bend the connecting piece.

[0021] As one preferred embodiment, the roller drive assembly includes:

[0022] A roller elastic limiting unit is connected to the bending roller to achieve elastic limiting of the bending roller;

[0023] And a limit drive unit, the drive end of which is connected to the roller elastic limit unit, for driving the roller elastic limit unit to move closer to or away from the connecting piece.

[0024] As one preferred embodiment, the length of the bending roller is at least three times the length of the bend line.

[0025] As one preferred embodiment, the cell connector bending device further includes:

[0026] The cell limiting mechanism is used to initially limit and install the cell;

[0027] And a limiting and pulling mechanism, used to press and limit the battery cell, and to pull the battery cell cable away from the connecting piece clamping mechanism.

[0028] As one preferred embodiment, the limiting and adjusting mechanism includes:

[0029] Cell clamping block is used to press and limit the movement of the battery cell;

[0030] The cable guide assembly is used to move the battery cell cable away from the connecting piece clamping mechanism;

[0031] And a limit switch drive assembly, the drive end of which is connected to the cell pressing block and the switch assembly respectively, to drive the cell pressing block to press and limit the cell, and to drive the switch assembly to move toward the roller bending mechanism.

[0032] As one preferred embodiment, the toggle cable assembly includes:

[0033] A wire guide plate is used to move the battery cell cable away from the connecting piece clamping mechanism.

[0034] And a wire-pulling drive unit, which is disposed on the drive end of the limit wire-pulling drive assembly, for driving the wire-pulling plate to move the battery cell cable away from the connecting piece clamping mechanism.

[0035] In summary, this utility model has at least the following advantages:

[0036] 1. The cell connecting piece bending device provided by this utility model combines a connecting piece clamping mechanism that clamps and limits the connecting piece near the bending line where the part does not need to be bent, and a roller bending mechanism that drives the part of the connecting piece to be bent to bend around the bending line to achieve the bending of the connecting piece. This can replace the manual bending operation in the prior art, effectively reduce the difficulty of workers' work, greatly improve the efficiency and quality stability of connecting piece bending, and thus effectively meet the needs of mass production of batteries.

[0037] 2. The cell connecting piece bending device provided by this utility model is also equipped with a limiting wire pulling mechanism, which can pull the cell wire away from the connecting piece clamping mechanism to prevent the cell wire from being pressed or bumped during the bending process, effectively ensuring the overall production quality and stability of the battery. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the cell connecting piece bending device in this embodiment of the present invention.

[0039] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0040] Figure 3 This is a schematic diagram of the limiting and guiding mechanism in an embodiment of the present invention.

[0041] Figure label:

[0042] 100. Connecting piece clamping mechanism; 110. First clamping member; 120. Second clamping member; 130. First clamping drive assembly; 140. Second clamping drive assembly;

[0043] 200. Roller bending mechanism; 210. Bending roller; 220. Roller drive assembly; 221. Roller elastic limit unit; 2211. Slide rail slider assembly; 2212. Limit spring; 2213. Roller mounting plate; 222. Limit drive unit;

[0044] 300. Battery cell limiting mechanism;

[0045] 400 Limiting wire-picking mechanism; 410 Battery cell clamping block; 420 Wire-picking assembly; 421 Wire-picking plate; 422 Wire-picking drive unit; 430 Limiting wire-picking drive assembly. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] Please see the appendix Figure 1 The battery cell connecting piece bending device of this utility model includes a connecting piece clamping mechanism 100 disposed adjacent to the connecting piece, and a roller bending mechanism 200 disposed adjacent to the connecting piece clamping mechanism 100. The connecting piece clamping mechanism 100 is used to clamp the portion of the connecting piece that does not need to be bent near the bending line; the roller bending mechanism 200 is used to drive the portion of the connecting piece to be bent to bend around the bending line, thereby completing the bending operation of the connecting piece.

[0049] Please refer to the appendix for further details. Figure 2The connecting piece clamping mechanism 100 includes a first clamping member 110 abutting against one side of the connecting piece adjacent to the bend line, a second clamping member 120 disposed opposite to the first clamping member 110 and abutting against the other side of the connecting piece adjacent to the bend line, a first clamping drive assembly 130 with its drive end connected to the first clamping member 110, and a second clamping drive assembly 140 with its drive end connected to the second clamping member 120; and the sides of the first clamping member 110 and the second clamping member 120 adjacent to the roller bending mechanism 200 are both located in the same vertical plane as the bend line. The first clamping member 110 is used to initially limit the connecting piece; the second clamping member 120 is used to engage with the first clamping member 110 to fully limit the connecting piece; the first clamping drive assembly 130 is used to drive the first clamping member 110 to initially limit the connecting piece; and the second clamping drive assembly 140 is used to drive the second clamping member 120 to fully limit the connecting piece. Preferably, both the first clamping drive assembly 130 and the second clamping drive assembly 140 are cylinder drive assemblies.

[0050] During the bending process of the connecting piece, the first clamping drive assembly 130 and the second clamping drive assembly 140 can be activated first, so as to drive the first clamping member 110 and the second clamping member 120 connected thereto respectively to clamp and limit the two sides of the part of the connecting piece that does not need to be bent near the bending line; then, the roller bending mechanism 200 is activated to drive the part of the connecting piece to be bent to be bent around the bending line to complete the bending operation of the connecting piece. Since the sides of the first clamping member 110 and the second clamping member 120 adjacent to the roller bending mechanism 200 are both located in the same vertical plane as the bending line, during the process of the roller bending mechanism 200 driving the connecting piece to be bent around the bending line, the connecting piece can be moved gradually away from the bending line from the bending line under the pressure of the roller bending mechanism 200, starting from the bending line, along the side of the first clamping member 110 or the second clamping member 120, until the connecting piece to be bent is completely attached to the side of the first clamping member 110 or the second clamping member 120, thus completing the bending of the connecting piece.

[0051] The cell connector bending device in this embodiment combines a connector clamping mechanism 100 that clamps and limits the portion of the connector that does not need to be bent near the bending line with a roller bending mechanism 200 that drives the portion of the connector to be bent to bend around the bending line to achieve the bending of the connector. This can replace the manual bending operation in the prior art, effectively reduce the difficulty of the worker's work, greatly improve the efficiency and quality stability of connector bending, and thus effectively meet the needs of mass production of batteries.

[0052] Furthermore, the first clamping member 110 has a first clamping buffer pad on the end that abuts against the connecting piece; the second clamping member 120 has a second clamping buffer pad on the end that abuts against the connecting piece. The design of the first and second clamping buffer pads can effectively buffer the instantaneous impact force applied to the connecting piece by the clamping member, so as to prevent the connecting piece from being damaged by excessive instantaneous stress of the clamping member. Preferably, the length of the end of the first clamping member 110 and the second clamping member 120 that contacts the connecting piece is at least 3 times the length of the bending line; since the battery cell generally has positive and negative tabs, there are generally two connecting pieces connected in a battery cell, plus the spacing between the positive and negative tabs; therefore, designing the length of the end of the first clamping member 110 and the second clamping member 120 that contacts the connecting piece to be at least 3 times the length of the bending line can effectively meet the simultaneous clamping and limiting of two connecting pieces in a battery cell, thereby further improving the bending efficiency of the connecting piece.

[0053] Please refer to the appendix for further details. Figure 2 In some embodiments, the roller bending mechanism 200 includes a bending roller 210 that rolls against the portion of the connecting piece to be bent, driving the portion of the connecting piece to be bent around the bend line, and a roller drive assembly 220 whose drive end is connected to the bending roller 210, driving the bending roller 210 to bend the connecting piece. Preferably, the length of the bending roller 210 is at least three times the length of the bend line, that is, the length of the bending roller 210 is at least the same as the length of the end of the first clamping member 110 and the second clamping member 120 that contacts the connecting piece; this can effectively satisfy the simultaneous rolling bending of two connecting pieces in a battery cell, thereby further improving the bending efficiency of the connecting piece.

[0054] Furthermore, the roller drive assembly 220 includes a roller elastic limiting unit 221 connected to the bending roller 210 for elastically limiting the bending roller 210, and a limiting drive unit 222 whose drive end is connected to the roller elastic limiting unit 221 for driving the roller elastic limiting unit 221 closer to or further away from the connecting piece. Preferably, the limiting drive unit 222 is a cylinder drive unit. The roller elastic limiting unit 221 includes a slide rail slider assembly 2211 and a limiting spring 2212 disposed on the drive end of the limiting drive unit 222, and a roller mounting plate 2213 connected to one end of the slider in the slide rail slider assembly 2211 and the limiting spring 2212 respectively for mounting the bending roller 210.

[0055] When the roller elastic limiting unit 221 approaches the connecting piece under the driving action of the limiting drive unit 222, the bending roller 210 set on the roller mounting plate 2213 will first abut against the side of the first clamping member 110 or the second clamping member 120. If it continues to be driven to move towards the connecting piece, the side of the first clamping member 110 or the second clamping member 120 will apply a reverse force to the bending roller 210, so that the limiting spring 2212 is compressed under the linkage action of the roller mounting plate 2213, and the slider in the slide rail slider group 2211 moves away from the connecting piece. After the rolling bending is completed, the limiting drive unit 222 drives the roller elastic limiting unit 221 to move away from the connecting piece. During the movement, due to the elastic force of the limiting spring 2212, the bending roller 210 will continue to press against the connecting piece, playing a certain pressure-holding role, so as to prevent the connecting piece from being bent at the wrong angle due to elastic reset.

[0056] Please see the appendix Figure 1 In some embodiments, the cell connecting piece bending device further includes a cell limiting mechanism 300 and a limiting wire-pulling mechanism 400 disposed adjacent to the connecting piece clamping mechanism 100 and the roller bending mechanism 200. The cell limiting mechanism 300 is used to achieve initial cell positioning and installation; preferably, the cell limiting mechanism 300 is a prior art cell clamp that can meet the positioning needs of different cell models, and is not the main inventive point of this technical solution, so it will not be described in detail here. The limiting wire-pulling mechanism 400 is mainly used to achieve pressing and limiting of the cell, and to pull the cell wiring away from the connecting piece clamping mechanism 100.

[0057] The design of the limit wire pulling mechanism 400 can pull the cell cable away from the connecting piece clamping mechanism 100 to prevent the cell cable from being pressed or bumped during the bending process, effectively ensuring the overall production quality and stability of the battery.

[0058] Please refer to the appendix for further details. Figure 2 and 3The limiting and guiding wire mechanism 400 includes a battery cell pressing block 410 for pressing and limiting the battery cell, a guiding wire assembly 420 for guiding the battery cell cable away from the connecting piece clamping mechanism 100, and a limiting and guiding wire driving assembly 430 whose driving ends are respectively connected to the battery cell pressing block 410 and the guiding wire assembly 420. Preferably, the limiting and guiding wire driving assembly 430 is a cylinder driving assembly, mainly used to drive the battery cell pressing block 410 to press and limit the battery cell, and to drive the guiding wire assembly 420 to move closer to the roller bending mechanism 200. Furthermore, the wire guide assembly 420 includes a wire guide plate 421 for moving the battery cell wire away from the connecting piece clamping mechanism 100, and a wire guide drive unit 422 disposed on the drive end of the limiting wire guide drive assembly 430 for driving the wire guide plate 421 to move the battery cell wire away from the connecting piece clamping mechanism 100; preferably, the wire guide drive unit 422 is a cylinder drive unit.

[0059] As can be seen from the technical solutions of the above embodiments, the present invention provides a cell connecting piece bending device, which can replace the manual bending operation in the prior art, effectively reduce the difficulty of workers' work, greatly improve the efficiency and quality stability of connecting piece bending, and thus effectively meet the needs of mass production of batteries.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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 battery cell connector bending device, characterized in that, include: A connecting piece clamping mechanism (100) is used to clamp the non-bending portion of the connecting piece adjacent to the bend line; And a roller bending mechanism (200) for driving the part of the connecting piece to be bent to be bent around the bending line; The connecting piece clamping mechanism (100) includes: The first clamping member (110) abuts against one side of the connecting piece near the bend line to achieve initial positioning of the connecting piece; And a second clamping member (120), which is disposed opposite to the first clamping member (110) and abuts against the other side of the connecting piece near the bend line, so as to achieve complete positioning of the connecting piece; Furthermore, the sides of the first clamping member (110) and the second clamping member (120) adjacent to the roller bending mechanism (200) are both located in the same vertical plane as the bending line.

2. The cell connecting piece bending device according to claim 1, characterized in that, The connecting piece clamping mechanism (100) further includes: The first clamping drive assembly (130) has a drive end connected to the first clamping member (110) to drive the first clamping member (110) to achieve the initial positioning of the connecting piece; And a second clamping drive assembly (140), the drive end of which is connected to the second clamping member (120) to drive the second clamping member (120) to achieve complete positioning of the connecting piece.

3. The cell connector bending device according to claim 1, characterized in that, The first clamping member (110) has a first clamping buffer pad on the end that abuts against the connecting piece; The second clamping member (120) has a second clamping buffer pad on the end that abuts against the connecting piece.

4. The cell connecting piece bending device according to claim 1, characterized in that, The length of the first clamping member (110) and the second clamping member (120) at the end that contacts the connecting piece is at least 3 times the length of the bend line.

5. The cell connecting piece bending device according to claim 1, characterized in that, The roller bending mechanism (200) includes: The bending roller (210) rolls against the part of the connecting piece to be bent, thereby driving the part of the connecting piece to be bent to bend around the bending line; And a roller drive assembly (220), the drive end of which is connected to the bending roller (210) to drive the bending roller (210) to bend the connecting piece.

6. The cell connector bending device according to claim 5, characterized in that, The roller drive assembly (220) includes: The roller elastic limiting unit (221) is connected to the bending roller (210) to realize the elastic limiting of the bending roller (210); And a limit drive unit (222), the drive end of which is connected to the roller elastic limit unit (221) to drive the roller elastic limit unit (221) to move closer to or away from the connecting piece.

7. The cell connector bending device according to claim 5, characterized in that, The length of the bending roller (210) is at least three times the length of the bend line.

8. The cell connecting piece bending device according to claim 1, characterized in that, Also includes: A cell limiting mechanism (300) is used to initially limit and install the cell; And a limiting wire-pulling mechanism (400) is used to press and limit the battery cell and to move the battery cell cable away from the connecting piece clamping mechanism (100).

9. The cell connecting piece bending device according to claim 8, characterized in that, The limiting and adjusting mechanism (400) includes: Cell clamping block (410) is used to clamp and limit the cell; A wire guide assembly (420) is used to move the battery cell wire away from the connecting piece clamping mechanism (100); And a limit switch drive assembly (430), the drive end of which is connected to the cell pressing block (410) and the switch assembly (420) respectively, to drive the cell pressing block (410) to press and limit the cell, and to drive the switch assembly (420) to move toward the roller bending mechanism (200).

10. The cell connecting piece bending device according to claim 9, characterized in that, The dial cable assembly (420) includes: A wire guide plate (421) is used to move the battery cell cable away from the connecting piece clamping mechanism (100); And a wire-pulling drive unit (422) is disposed on the drive end of the limit wire-pulling drive assembly (430) to drive the wire-pulling plate (421) to move the battery cell cable away from the connecting piece clamping mechanism (100).

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