Tab rolling tool and rolling device

Abstract

The utility model provides a pole lug rolling tool and a rolling device, relates to the technical field of battery production equipment, and aims to optimize the structure of a compression roller tool, reduce the axial size and improve the rolling effect to a certain extent. The utility model provides a pole lug rolling tool. The pole lug rolling tool comprises a supporting column, a first roller, a second roller and a connecting assembly, a positioning hole is formed in the supporting column, the connecting assembly penetrates through the positioning hole to be connected with the supporting column, the first roller and the second roller are connected with the two ends of the connecting assembly respectively, and the end plane of the connecting assembly does not exceed the end faces of the ends, away from the supporting column, of the first roller and the second roller.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a tab rolling tool and a rolling device. Background Art

[0002] At present, with the development of electric vehicles and energy storage industries, more and more automotive battery modules and energy storage grouping technologies have been produced. Battery modules are mainly composed of battery cells, and a large part of them are soft-pack battery cells. Relatively speaking, due to their own characteristics, soft-pack battery cells need to use rollers to roll the tabs during the grouping process to make the aluminum-copper tabs fit together or to make the aluminum-copper tabs fit on the busbar.

[0003] Many existing automatic roller pressing devices have double-support structures, which causes the axial size of the roller to be much wider than the two rollers. Therefore, some soft-pack module products cannot be used normally because the brackets of the two tabs are close to each other.

[0004] Therefore, there is an urgent need to provide a tab rolling tool and a rolling device to solve the problems existing in the prior art to a certain extent. Utility Model Content

[0005] The utility model aims to provide a tab rolling tool and a rolling device, so as to optimize the roller tool structure to a certain extent, reduce the axial size and improve the rolling effect.

[0006] The utility model provides a tab rolling tool, comprising a support column, a first roller, a second roller and a connecting assembly; the support column is formed with a positioning hole, the connecting assembly is connected to the support column through the positioning hole, the first roller and the second roller are respectively connected to the two ends of the connecting assembly, and the end plane of the connecting assembly does not exceed the end surface of the first roller and the second roller away from one end of the support column.

[0007] Wherein, the connecting assembly comprises a connecting shaft, the connecting shaft is arranged in the positioning hole, and the distances between the ends of both ends of the connecting shaft and the supporting column are the same.

[0008] Specifically, the connecting assembly further includes a first bearing and a second bearing, the first bearing and the second bearing are respectively arranged at two ends of the connecting shaft, and the first roller is connected to the first bearing, and the second roller is connected to the second bearing.

[0009] Furthermore, the connecting shaft is a shaft-connecting bolt, including a rod portion, a screw portion and a nut portion, the rod portion is arranged through the positioning hole, and the screw portion and the nut portion are relatively arranged at two ends of the rod portion; the first bearing and the second bearing are both installed on the rod portion, and the first bearing is located between the screw portion and the support column, and the second bearing is located between the nut portion and the support column.

[0010] Furthermore, the first roller is formed with a first accommodating groove, the outer ring of the first bearing is connected to the first roller, and the screwing portion is located in the first accommodating groove.

[0011] Furthermore, the second roller is formed with a second accommodating groove, the outer ring of the second bearing is connected to the second roller, and the nut portion is located in the second accommodating groove.

[0012] Among them, the tab rolling tooling provided by the utility model also includes a limiting member, a through hole is formed on the support column, the through hole is connected to the positioning hole, and one end of the limiting member can enter or exit the positioning hole through the through hole to abut or separate from the connecting shaft.

[0013] Specifically, a fitting portion is formed at a position of the connecting shaft corresponding to the through hole, and one end of the limiting member can penetrate into the fitting portion to be engaged with the connecting shaft.

[0014] Furthermore, the support column includes a mounting section and a connecting section, the positioning hole is formed at one end of the connecting section away from the mounting section, the area of ​​the mounting section is larger than the area of ​​the connecting section, and a plurality of mounting holes are formed on the mounting section.

[0015] Compared with the prior art, the tab rolling tooling provided by the utility model has the following advantages:

[0016] The utility model provides a tab rolling tool, comprising a support column, a first roller, a second roller and a connecting assembly; the support column is formed with a positioning hole, the connecting assembly is connected to the support column through the positioning hole, the first roller and the second roller are respectively connected to the two ends of the connecting assembly, and the end plane of the connecting assembly does not exceed the end surface of the first roller and the second roller away from the end of the support column.

[0017] From this analysis, it can be seen that the connection assembly can be installed and positioned through the positioning holes formed on the support column, and the first roller and the second roller provided at both ends of the connection assembly can be used to roll the tab.

[0018] Furthermore, since the end planes of the connecting assembly in the present application do not exceed the end faces of the first roller and the second roller that are away from the support column, the axial dimensions of the overall rolling structure can be greatly reduced, thereby better adapting to the operating conditions where the two pole ear brackets are closely separated and ensuring the rolling effect.

[0019] In addition, the utility model also provides a rolling device, including the above-mentioned tab rolling tool.

[0020] The rolling device using the tab rolling tooling provided in the present application can adapt to working conditions where the tab brackets are closely spaced, thereby improving the adaptability of the overall rolling device, reducing the cost of use, and ensuring the rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of the tab rolling tooling provided in an embodiment of the utility model;

[0023] Figure 2 A schematic structural diagram of a connection assembly in a tab rolling tooling provided in an embodiment of the utility model.

[0024] In the figure: 1-support column; 101-connecting section; 1011-through hole; 102-installing section; 2-connecting shaft; 201-rod; 202-screwing part; 203-nut part; 3-first bearing; 4-second bearing; 5-first roller; 6-second roller. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0030] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0031] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0032] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0033] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0034] like Figure 1 Combination Figure 2 As shown, the utility model provides a tab rolling tool, including a support column 1, a first roller 5, a second roller 6 and a connecting assembly; the support column 1 is formed with a positioning hole, the connecting assembly is connected to the support column 1 through the positioning hole, the first roller 5 and the second roller 6 are respectively connected to the two ends of the connecting assembly, and the end plane of the connecting assembly does not exceed the end surface of the first roller 5 and the second roller 6 away from the end of the support column 1.

[0035] Compared with the prior art, the tab rolling tooling provided by the utility model has the following advantages:

[0036] The tab rolling tool provided by the utility model can realize the installation and positioning of the connection assembly through the positioning holes formed on the support column 1, and can realize the rolling action of the tab through the first roller 5 and the second roller 6 arranged at both ends of the connection assembly.

[0037] Moreover, since the end planes of the connecting assembly in the present application do not exceed the end faces of the first roller 5 and the second roller 6 that are away from the support column 1, the axial dimensions of the overall rolling structure can be greatly reduced, thereby better adapting to the operating conditions where the two pole ear brackets are closely separated and ensuring the rolling effect.

[0038] It should be noted that the connection assembly in the present application is detachably connected to the support column 1. Therefore, when the distance between the two tab brackets is relatively close, the connection assembly provided by the present application can be installed to reduce the interval between the first roller 5 and the second roller 6, thereby reducing the overall axial size. When the distance between the tab brackets is relatively large, the connection assembly provided by the present application can be disassembled, and the roller structure used in the prior art can be replaced to adapt to the working conditions where the distance between the tab brackets is relatively large. Therefore, by making the connection assembly detachably connected to the support column 1, the applicability of the tab rolling tool can be further improved.

[0039] Alternatively, if Figure 1 Combination Figure 2 As shown, the connection assembly in the present application includes a connection shaft 2, which is arranged in a positioning hole, and the distances between the ends of both ends of the connection shaft 2 and the support column 1 are the same.

[0040] In this manner, the connecting shaft 2 is disposed through the positioning hole and is fixed relative to the supporting column 1 , and the rolling of the tab is achieved through the rotation of the first roller 5 and the second roller 6 .

[0041] However, the connecting shaft 2 can also be rotated relative to the supporting column 1. Accordingly, the first roller 5 and the second roller 6 are fixedly connected to the connecting shaft 2, so that the pole lug can be rolled by the rotation of the connecting shaft 2 relative to the supporting column 1.

[0042] However, since the method of rotating the connecting shaft 2 relative to the support column 1 to drive the first roller 5 and the second roller 6 has poor stability on the one hand and large friction on the other hand, the present application preferably adopts the method of rotating the first roller 5 and the second roller 6. Accordingly, the connecting assembly in the present application also includes a first bearing 3 and a second bearing 4, and the first bearing 3 and the second bearing 4 are respectively arranged at both ends of the connecting shaft 2, and the first roller 5 is connected to the first bearing 3, and the second roller 6 is connected to the second bearing 4.

[0043] By connecting the inner rings of the first bearing 3 and the second bearing 4 to the connecting shaft 2, the outer rings of the first bearing 3 and the second bearing 4 are connected to the corresponding first rollers 5 and second rollers 6, so that the first rollers 5 and second rollers 6 can rotate smoothly, thereby realizing the rolling operation of the pole ears.

[0044] Preferably, if Figure 2 As shown, the connecting shaft 2 in the present application is a shaft-connecting bolt, including a rod portion 201, a screwing portion 202 and a nut portion 203. The rod portion 201 is arranged through a positioning hole, and the screwing portion 202 and the nut portion 203 are relatively arranged at both ends of the rod portion 201; the first bearing 3 and the second bearing 4 are both installed on the rod portion 201, and the first bearing 3 is located between the screwing portion 202 and the support column 1, and the second bearing 4 is located between the nut portion 203 and the support column 1.

[0045] The rod portion 201 in the present application does not have threads, and threads are formed only at one end away from the screwing portion 202 . Accordingly, the threads formed at the end of the rod portion 201 can realize a detachable connection between the nut portion 203 and the rod portion 201 .

[0046] It can be understood that the screwing portion 202 in the present application is an integral structure with the rod portion 201, and a screwing groove is formed on the screwing portion 202, so that the overall connecting shaft 2 can be rotated using a wrench or the like, thereby achieving disassembly of the nut portion 203, so that the connecting shaft 2 can be separated from the support column 1, completing the detachable connection between the connecting shaft 2 and the support column 1.

[0047] It should be noted that, by relatively arranging the screwing portion 202 and the nut portion 203 at the two ends of the rod 201, the first roller 5 and the second roller 6 can be restricted on the rod 201 between the screwing portion 202 and the nut portion 203. Even if movement occurs, the first roller 5 and the second roller 6 can be prevented from detaching from the rod 201 from the end of the rod 201.

[0048] More preferably, if Figure 1 Combination Figure 2 As shown, the first roller 5 in the present application is formed with a first receiving groove, the outer ring of the first bearing 3 is connected to the first roller 5, and the screwing portion 202 is located in the first receiving groove.

[0049] The first receiving groove formed on the first roller 5 can accommodate the screwing portion 202, so that the axial size can be reduced to a certain extent by hiding the screwing portion 202 in the first receiving groove, thereby ensuring adaptability.

[0050] Correspondingly, the second roller 6 in the present application is formed with a second receiving groove, the outer ring of the second bearing 4 is connected to the second roller 6, and the nut portion 203 is located in the second receiving groove.

[0051] The second receiving groove formed on the second roller 6 can accommodate the nut portion 203 , so that the axial dimension can be minimized to the greatest extent by hiding the nut portion 203 in the second receiving groove, thereby increasing the degree of adaptability.

[0052] Alternatively, if Figure 1 Combination Figure 2 As shown, the tab rolling tooling provided by the utility model also includes a limit piece. A through hole 1011 is formed on the support column 1, and the through hole 1011 is connected to the positioning hole. One end of the limit piece can enter or exit the positioning hole through the through hole 1011 to abut or separate from the connecting shaft 2.

[0053] By providing a through hole 1011 connected to the positioning hole on the support column 1, one end of the limiting member can enter the positioning hole through the through hole 1011 and abut against the connecting shaft 2, thereby limiting the connecting shaft 2. By limiting the connecting shaft 2, on the one hand, the rotation of the connecting shaft 2 can be prevented, and on the other hand, the rotation of the connecting shaft 2 in the axial direction can be avoided, so that to a certain extent, the center of the connecting shaft 2 is always located in the positioning hole and is located at the same point as the center of the positioning hole, ensuring that the forces at both ends of the connecting shaft 2 are uniform, and improving the stability of the overall structure during operation.

[0054] Optionally, a mating portion is formed at a position of the connecting shaft 2 corresponding to the through hole 1011 in the present application, and one end of the limiting member can penetrate into the mating portion and engage with the connecting shaft 2 .

[0055] By forming the matching portion at the position of the connecting shaft 2 corresponding to the through hole 1011, the limiting effect of the limiting member on the connecting shaft 2 can be made more stable, thereby ensuring that the position of the connecting shaft 2 is fixed and improving the stability of the overall structure during operation.

[0056] Alternatively, if Figure 1 Combination Figure 2 As shown, the support column 1 in the present application includes a mounting section 102 and a connecting section 101, a positioning hole is formed at one end of the connecting section 101 away from the mounting section 102, the area of ​​the mounting section 102 is larger than the area of ​​the connecting section 101, and a plurality of mounting holes are formed on the mounting section 102.

[0057] The connection section 101 can provide an installation position for the connection assembly, and by making the area of ​​the connection section 101 smaller than the area of ​​the installation section 102, space can be provided for the rotation of the first roller 5 and the second roller 6. Accordingly, since the installation section 102 is used to connect with the rolling device, making the area of ​​the installation section 102 larger can make the connection more stable, and the connection with the rolling device can be achieved through the installation hole formed on the installation section 102.

[0058] In addition, the utility model also provides a rolling device, including the above-mentioned tab rolling tool.

[0059] The rolling device using the tab rolling tooling provided in the present application can adapt to working conditions where the tab brackets are closely spaced, thereby improving the adaptability of the overall rolling device, reducing the cost of use, and ensuring the rolling effect.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tab rolling tool, characterized in that: It includes a support column, a first roller, a second roller and a connecting assembly; The support column is formed with a positioning hole, and the connecting component is connected to the support column through the positioning hole. The first roller and the second roller are respectively connected to the two ends of the connecting component, and the end plane of the connecting component does not exceed the end surface of the first roller and the second roller away from one end of the support column.

2. The tab rolling tool according to claim 1, characterized in that: The connecting assembly comprises a connecting shaft, the connecting shaft is arranged in the positioning hole, and the distances between the ends of both ends of the connecting shaft and the supporting column are the same.

3. The tab rolling tool according to claim 2, characterized in that: The connecting assembly further includes a first bearing and a second bearing, wherein the first bearing and the second bearing are respectively arranged at two ends of the connecting shaft, and the first roller is connected to the first bearing, and the second roller is connected to the second bearing.

4. The tab rolling tool according to claim 3, characterized in that: The connecting shaft is a shaft-connecting bolt, comprising a rod portion, a screwing portion and a nut portion, the rod portion is arranged through the positioning hole, and the screwing portion and the nut portion are arranged at two ends of the rod portion opposite to each other; The first bearing and the second bearing are both mounted on the rod portion, and the first bearing is located between the screwing portion and the support column, and the second bearing is located between the nut portion and the support column.

5. The tab rolling tool according to claim 4, characterized in that: The first roller is formed with a first accommodating groove, the outer ring of the first bearing is connected to the first roller, and the screwing portion is located in the first accommodating groove.

6. The tab rolling tool according to claim 4, characterized in that: The second roller is formed with a second accommodating groove, the outer ring of the second bearing is connected to the second roller, and the nut portion is located in the second accommodating groove.

7. The tab rolling tool according to claim 2, characterized in that: It also includes a limiting member, a through hole is formed on the support column, the through hole is connected to the positioning hole, and one end of the limiting member can enter or exit the positioning hole through the through hole to abut or separate from the connecting shaft.

8. The tab rolling tool according to claim 7, characterized in that: A matching portion is formed at a position of the connecting shaft corresponding to the through hole, and one end of the limiting member can penetrate into the matching portion to be engaged with the connecting shaft.

9. The tab rolling tool according to claim 1, characterized in that: The support column includes a mounting section and a connecting section, the positioning hole is formed at one end of the connecting section away from the mounting section, the area of ​​the mounting section is larger than the area of ​​the connecting section, and a plurality of mounting holes are formed on the mounting section.

10. A rolling device, characterized in that: The present invention comprises the tab rolling tool as claimed in any one of claims 1 to 9.

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