A cylindrical battery cell pre-shaping device

Abstract

The utility model relates to the technical field of energy storage device processing, and specifically to a cylindrical battery cell pre-shaping device, comprising a base, a cell positioning mechanism arranged on the base, a shaping seat arranged on the base, a cell shaping mechanism arranged on the shaping seat, and the cell shaping mechanism comprising a plurality of shaping components arranged on the shaping seat facing the side of the cell positioning mechanism, a rotating cam arranged on the shaping seat, and a driving component arranged on the shaping seat. The plurality of shaping components of the utility model can squeeze the ends of the cell under the drive of the driving component and the rotating cam, so that the ends of the cell are gathered, and the operation is fast and efficient, which is convenient for subsequent shell processing and ensures product quality. On the other hand, a plurality of shaping components are arranged in a circular array. With the cooperation of the rotating cam, the shaping components surround the cell and squeeze the ends of the cell from different directions at the same time, ensuring the uniformity of the cell ends and improving the consistency of product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage device processing, in particular to a cylindrical battery core pre-shaping device. Background Art

[0002] A battery is an energy storage device that can store electrical energy. A battery generally refers to a cup, trough, or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. It now also refers to a small device that can generate electrical energy. Common energy storage batteries include lithium-ion batteries, sodium-ion batteries, lead-acid batteries, nickel-metal hydride batteries, and supercapacitors. Electrolyte is an important component of common chemical batteries. As a battery discharge medium, it provides ion conduction for the normal operation of the positive and negative electrodes. In the production and processing of lithium-ion batteries, sodium-ion batteries and other products, the battery cell needs to be placed in the outer shell. Taking cylindrical batteries as an example, the wound cylindrical battery cell needs to be loaded into the cylindrical outer shell. Since the battery cell is wound, the roundness may be uneven during the winding process, especially at the end of the battery cell, which may warp during the transfer process. If the outer diameter of the end of the battery cell deviates (greater than the inner diameter of the battery shell), it will affect the subsequent shell insertion operation, which may damage the battery cell and the battery shell, causing battery short circuit and other problems, affecting the quality of the battery product. At the same time, if the deviation is large, the battery cell will be stuck and unable to enter the shell, eventually leading to scrapping. In traditional operations, the ends of the battery cells are generally gathered manually using tools, which is inefficient, or simply pressed with a cylinder, and the uniformity of the gathering of the ends of the battery cells is difficult to control. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a cylindrical battery cell pre-shaping device, which can pre-shape the ends of the battery cell and gather the ends of the battery cell.

[0004] The utility model is implemented by the following scheme:

[0005] A cylindrical battery cell pre-shaping device comprises a base, a cell positioning mechanism arranged on the base, a shaping seat arranged on the base, and a cell shaping mechanism arranged on the shaping seat, wherein the cell shaping mechanism comprises a plurality of shaping components arranged on the side of the shaping seat facing the cell positioning mechanism, a rotating cam arranged on the shaping seat, and a driving component arranged on the shaping seat for driving the rotating cam; the plurality of shaping components are distributed in a circular array, and the shaping components are movably connected to the shaping seat, and the shaping components are transmission-connected to the rotating cam, and when the rotating cam rotates, the shaping components approach or move away from the center of the circular array.

[0006] Furthermore, the battery cell positioning mechanism includes a positioning bracket arranged on the base, a first positioning seat arranged on the positioning bracket, and a second positioning seat arranged above the first positioning seat. A positioning portion matching the battery cell is provided on one side of the first positioning seat facing the second positioning seat and on one side of the second positioning seat facing the first positioning seat.

[0007] Furthermore, the driving assembly includes a driving bracket connected to the shaping seat, a driving motor arranged on the driving bracket, and the driving motor is drivingly connected to the rotating cam.

[0008] Furthermore, the shaping component includes a sliding block connected to the shaping seat, a fixing member connected to the sliding block, and a shaping member arranged on the fixing member.

[0009] Furthermore, a gathering and shaping portion is provided at the end of the shaping piece.

[0010] Furthermore, the shaping seat includes a base plate, a fixed plate arranged on the base plate, the shaping component is arranged on the side of the fixed plate facing the battery cell positioning mechanism, and the rotating cam and the driving component are both arranged on the side of the fixed plate away from the battery cell positioning mechanism.

[0011] Furthermore, the fixing plate is provided with a guide opening for connecting the sliding block, and the sliding block is provided with a connecting portion, and the connecting portion is drivingly connected to the rotating cam.

[0012] Furthermore, the base is provided with a linear module, and the shaping seat is connected to the linear module.

[0013] Furthermore, the shaping components are provided in six groups.

[0014] Furthermore, the rotating cam is provided with a plurality of through holes.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The battery cell shaping mechanism of the utility model has a plurality of shaping components, which can squeeze the ends of the battery cells under the drive of the driving component and the rotating cam, so that the ends of the battery cells are gathered, and the action is fast and efficient, which is convenient for the subsequent shell processing and ensures the product quality. On the other hand, a plurality of shaping components are arranged in a circular array, and under the cooperation of the rotating cam, the shaping components surround the battery cells and squeeze the ends of the battery cells from different directions at the same time, so as to ensure the uniformity of the gathering of the ends of the battery cells and improve the consistency of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a cylindrical battery cell pre-shaping device provided by the utility model.

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0019] Figure 3 This is a schematic diagram of another viewing angle of the present invention.

[0020] Figure 4 It is a side view of the utility model.

[0021] Included in the picture are:

[0022] Base 1, battery cell positioning mechanism 2, positioning bracket 21, first positioning seat 22, second positioning seat 23, positioning part 24, shaping seat 3, bottom plate 31, fixing plate 32, guide opening 33, battery cell shaping mechanism 4, shaping component 41, sliding block 411, fixing part 412, shaping part 413, retracting shaping part 414, connecting part 415, rotating cam 42, through hole 421, driving component 43, driving bracket 431, driving motor 432, linear module 5. DETAILED DESCRIPTION

[0023] In order to facilitate those skilled in the art to understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and drawings.

[0024] Example 1

[0025] Reference Figures 1 to 4 The utility model provides a cylindrical battery cell pre-shaping device, comprising a base 1, a cell positioning mechanism 2 arranged on the base 1, a shaping seat 3 arranged on the base 1, and a cell shaping mechanism 4 arranged on the shaping seat 3, wherein the cell shaping mechanism 4 comprises a plurality of shaping components 41 arranged on the side of the shaping seat 3 facing the cell positioning mechanism 2, a rotating cam 42 arranged on the shaping seat 3, and a driving component 43 arranged on the shaping seat 3 for driving the rotating cam 42.

[0026] A plurality of shaping components 41 are distributed in a circular array, and the shaping components 41 are movably connected to the shaping seat 3, and the shaping components 41 are transmission-connected to the rotating cam 42. When the rotating cam 42 rotates, the shaping components 41 approach or move away from the center of the circular array. Specifically, the center of the circular array corresponds to the radial center of the battery cell, which is equivalent to the shaping components 41 being arranged around the battery cell. When the shaping components 41 move toward the center of the circular array, a plurality of shaping components 41 contact the battery cell from the periphery of the battery cell, press the end of the battery cell, and gather the end of the battery cell. In this embodiment, the rotating cam 42 is similar to a plum blossom shape, and has a plurality of "petals". The specific number of "petals" is the same as the number of shaping components 41. A guide groove (not shown in the figure) is provided on the rotating cam 42. The shaping component 41 is connected to the guide groove. During the rotation of the rotating cam 42, the shaping component 41 can gradually approach the battery cell and then gradually move away from the battery cell, that is, the end of the battery cell is gathered and shaped and then leaves the battery cell. In this embodiment, the guide groove is provided along the edge of the rotating cam 42. Of course, the shape of the rotating cam 42 is not limited to the above form, and it can drive several arranging components at the same time to realize linear reciprocating motion. In addition, the rotating cam 42 described in this embodiment is provided with a plurality of through holes 421. The provision of the through holes 421 can reduce the material used for the rotating cam 42 and can also reduce the weight of the rotating cam 42.

[0027] The battery cell positioning mechanism 2 includes a positioning bracket 21 arranged on the base 1, a first positioning seat 22 arranged on the positioning bracket 21, and a second positioning seat 23 arranged above the first positioning seat 22. The first positioning seat 22 is provided with a side of the second positioning seat 23 facing the second positioning seat 23, and the second positioning seat 23 is provided with a positioning portion 24 matching the battery cell. In this embodiment, the first positioning seat 22 and the second positioning seat 23 are used to position the battery cell from the upper and lower sides. The battery cell is inserted between the first positioning seat 22 and the second positioning seat 23, so that the battery cell can be located at the center of the array of the shaping component 41. In specific implementation, in order to ensure that the battery cell does not slide, a spring can be added between the first positioning member and the second positioning member to clamp the battery cell by the tension of the spring, or the second positioning seat 23 can be connected to a driving component such as a cylinder to clamp the battery cell by applying pressure through the driving component.

[0028] The driving assembly 43 includes a driving bracket 431 connected to the shaping seat 3, a driving motor 432 arranged on the driving bracket, and the driving motor 432 is connected to the rotating cam 42. Specifically, the driving motor 432 is connected to the rotating cam 42 through a coupling. The driving motor 432 adopts a servo motor to ensure the accuracy of the rotation of the rotating cam 42.

[0029] The shaping component 41 includes a sliding block 411 connected to the shaping seat 3, a fixing member 412 connected to the sliding block 411, and a shaping member 413 arranged on the fixing member 412. A retracting shaping portion 414 is arranged at the end of the shaping member 413, and the retracting shaping portion 414 contacts the end of the battery cell to squeeze the end of the battery cell for retracting. In this embodiment, six groups of the shaping components 41 are provided. Since a plurality of shaping components 41 are provided, the end of the battery cell can be squeezed from different directions, thereby achieving the retraction of the entire end of the battery cell. Of course, in the specific implementation, the number of shaping components 41 can be determined according to the specifications and processing requirements of the battery.

[0030] The shaping seat 3 includes a base plate 31, a fixed plate 32 arranged on the base plate 31, the shaping component 41 is arranged on the side of the fixed plate 32 facing the battery cell positioning mechanism 2, and the rotating cam 42 and the driving component 43 are both arranged on the side of the fixed plate 32 away from the battery cell positioning mechanism 2.

[0031] The fixing plate 32 is provided with a guide opening 33 for connecting the sliding block 411. The sliding block 411 is provided with a connecting portion 415, and the connecting portion 415 is drivingly connected to the rotating cam 42. The guide opening 33 is in the shape of an elongated strip, and a circle is made with the center of the circumferential array of the shaping component 41 as a reference. The guide opening 33 is arranged along the radial direction of the circle.

[0032] In the specific operation, the battery cell is first loaded into the battery cell positioning mechanism 2, and then the battery cell is brought close to the shaping component 41. When the battery cell reaches the position corresponding to the shaping component 41, the driving component 43 drives the rotating cam 42 to rotate, thereby driving the shaping component 41 to move toward the battery cell. The shaping component 41 squeezes the end of the battery cell and gathers the end of the battery cell. Then, as the rotating cam 42 continues to rotate, the shaping component 41 moves away from the battery cell. At this time, the battery cell can be taken out, and a pre-shaping operation is completed. Since the battery cell needs to be brought close to the shaping component 41 during the pre-shaping process, the operation is relatively inconvenient, and embodiment 2 is proposed for this purpose.

[0033] Example 2

[0034] Reference Figures 1 to 4 The utility model provides a cylindrical battery cell pre-shaping device, comprising a base 1, a cell positioning mechanism 2 arranged on the base 1, a shaping seat 3 arranged on the base 1, and a cell shaping mechanism 4 arranged on the shaping seat 3, wherein the cell shaping mechanism 4 comprises a plurality of shaping components 41 arranged on the side of the shaping seat 3 facing the cell positioning mechanism 2, a rotating cam 42 arranged on the shaping seat 3, and a driving component 43 arranged on the shaping seat 3 for driving the rotating cam 42.

[0035] A plurality of shaping components 41 are distributed in a circular array, and the shaping components 41 are movably connected to the shaping seat 3, and the shaping components 41 are transmission-connected to the rotating cam 42. When the rotating cam 42 rotates, the shaping components 41 approach or move away from the center of the circular array. Specifically, the center of the circular array corresponds to the radial center of the battery cell, which is equivalent to the shaping components 41 being arranged around the battery cell. When the shaping components 41 move toward the center of the circular array, a plurality of shaping components 41 contact the battery cell from the periphery of the battery cell, press the end of the battery cell, and gather the end of the battery cell. In this embodiment, the rotating cam 42 is similar to a plum blossom shape, and has a plurality of "petals". The specific number of "petals" is the same as the number of shaping components 41. A guide groove (not shown in the figure) is provided on the rotating cam 42. The shaping component 41 is connected to the guide groove. During the rotation of the rotating cam 42, the shaping component 41 can gradually approach the battery cell and then gradually move away from the battery cell, that is, the end of the battery cell is gathered and shaped and then leaves the battery cell. In this embodiment, the guide groove is provided along the edge of the rotating cam 42. Of course, the shape of the rotating cam 42 is not limited to the above form, and it can drive several arranging components at the same time to realize linear reciprocating motion. In addition, the rotating cam 42 described in this embodiment is provided with a plurality of through holes 421. The provision of the through holes 421 can reduce the material used for the rotating cam 42 and can also reduce the weight of the rotating cam 42.

[0036] The battery cell positioning mechanism 2 includes a positioning bracket 21 arranged on the base 1, a first positioning seat 22 arranged on the positioning bracket 21, and a second positioning seat 23 arranged above the first positioning seat 22. The first positioning seat 22 is provided with a side of the second positioning seat 23 facing the second positioning seat 23, and the second positioning seat 23 is provided with a positioning portion 24 matching the battery cell. In this embodiment, the first positioning seat 22 and the second positioning seat 23 are used to position the battery cell from the upper and lower sides. The battery cell is inserted between the first positioning seat 22 and the second positioning seat 23, so that the battery cell can be located at the center of the array of the shaping component 41. In specific implementation, in order to ensure that the battery cell does not slide, a spring can be added between the first positioning member and the second positioning member to clamp the battery cell by the tension of the spring, or the second positioning seat 23 can be connected to a driving component such as a cylinder to clamp the battery cell by applying pressure through the driving component.

[0037] The driving assembly 43 includes a driving bracket 431 connected to the shaping seat 3, a driving motor 432 arranged on the driving bracket, and the driving motor 432 is connected to the rotating cam 42. Specifically, the driving motor 432 is connected to the rotating cam 42 through a coupling. The driving motor 432 adopts a servo motor to ensure the accuracy of the rotation of the rotating cam 42.

[0038] The shaping component 41 includes a sliding block 411 connected to the shaping seat 3, a fixing member 412 connected to the sliding block 411, and a shaping member 413 arranged on the fixing member 412. A retracting shaping portion 414 is arranged at the end of the shaping member 413, and the retracting shaping portion 414 contacts the end of the battery cell to squeeze the end of the battery cell for retracting. In this embodiment, six groups of the shaping components 41 are provided. Since a plurality of shaping components 41 are provided, the end of the battery cell can be squeezed from different directions, thereby achieving the retraction of the entire end of the battery cell. Of course, in the specific implementation, the number of shaping components 41 can be determined according to the specifications and processing requirements of the battery.

[0039] The shaping seat 3 includes a base plate 31, a fixed plate 32 arranged on the base plate 31, the shaping component 41 is arranged on the side of the fixed plate 32 facing the battery cell positioning mechanism 2, and the rotating cam 42 and the driving component 43 are both arranged on the side of the fixed plate 32 away from the battery cell positioning mechanism 2.

[0040] The fixing plate 32 is provided with a guide opening 33 for connecting the sliding block 411. The sliding block 411 is provided with a connecting portion 415, and the connecting portion 415 is drivingly connected to the rotating cam 42. The guide opening 33 is in the shape of an elongated strip, and a circle is made with the center of the circumferential array of the shaping component 41 as a reference. The guide opening 33 is arranged along the radial direction of the circle.

[0041] The base 1 is provided with a linear module 5, and the shaping seat 3 is connected to the linear module 5. Driven by the linear module 5, the shaping seat 3 can be close to or away from the battery core positioning mechanism 2.

[0042] During specific work, the battery cell is first loaded into the battery cell positioning mechanism 2, and then the linear module 5 drives the shaping seat 3 to move, so that the shaping component 41 is close to the battery cell. When the shaping component 41 reaches the position corresponding to the end of the battery cell, the driving component 43 drives the rotating cam 42 to rotate, thereby driving the shaping component 41 to move toward the battery cell. The shaping component 41 squeezes the end of the battery cell and brings the end of the battery cell together. Then, as the rotating cam 42 continues to rotate, the shaping component 41 moves away from the battery cell. Finally, the linear module 5 is reset, the shaping seat 3 moves away from the battery cell positioning mechanism 2, and the battery cell is taken out, completing a pre-shaping operation.

[0043] The battery cell shaping mechanism 4 of the utility model has a plurality of shaping components 41, which can squeeze the ends of the battery cells under the drive of the driving component 43 and the rotating cam 42, so that the ends of the battery cells are gathered, and the action is fast and efficient, which is convenient for the subsequent shell processing and ensures the product quality. On the other hand, a plurality of shaping components 41 are arranged in a circular array, and under the cooperation of the rotating cam 42, the shaping components 41 surround the battery cells and squeeze the ends of the battery cells from different directions at the same time, so as to ensure the uniformity of the gathering of the ends of the battery cells and improve the consistency of product quality.

[0044] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does 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 present invention.

[0045] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the scope of the appended claims.

Claims

1. A cylindrical battery cell pre-shaping device, characterized in that: It includes a base, a battery cell positioning mechanism arranged on the base, a shaping seat arranged on the base, and a battery cell shaping mechanism arranged on the shaping seat. The battery cell shaping mechanism includes a plurality of shaping components arranged on the side of the shaping seat facing the battery cell positioning mechanism, a rotating cam arranged on the shaping seat, and a driving component arranged on the shaping seat for driving the rotating cam; the plurality of shaping components are distributed in a circular array, and the shaping components are movably connected to the shaping seat, and the shaping components are transmission-connected to the rotating cam. When the rotating cam rotates, the shaping components approach or move away from the center of the circular array.

2. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The battery cell positioning mechanism includes a positioning bracket arranged on the base, a first positioning seat arranged on the positioning bracket, and a second positioning seat arranged above the first positioning seat. A positioning portion matching the battery cell is provided on a side of the first positioning seat facing the second positioning seat and a side of the second positioning seat facing the first positioning seat.

3. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The driving assembly comprises a driving bracket connected to the shaping seat, a driving motor arranged on the driving bracket, and the driving motor is drivingly connected to the rotating cam.

4. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The shaping component comprises a sliding block connected to the shaping seat, a fixing piece connected to the sliding block, and a shaping piece arranged on the fixing piece.

5. The cylindrical battery cell pre-shaping device according to claim 4, characterized in that: The end of the shaping piece is provided with a gathering shaping portion.

6. The cylindrical battery cell pre-shaping device according to claim 4, characterized in that: The shaping seat includes a base plate and a fixing plate arranged on the base plate. The shaping component is arranged on a side of the fixing plate facing the battery cell positioning mechanism. The rotating cam and the driving component are both arranged on a side of the fixing plate away from the battery cell positioning mechanism.

7. The cylindrical battery cell pre-shaping device according to claim 6, characterized in that: The fixing plate is provided with a guide opening for connecting the sliding block, and the sliding block is provided with a connecting portion, and the connecting portion is drivingly connected with the rotating cam.

8. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The base is provided with a linear module, and the shaping seat is connected to the linear module.

9. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The shaping components are provided in six groups.

10. The cylindrical battery cell pre-shaping device according to claim 1, characterized in that: The rotating cam is provided with a plurality of through holes.

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