Leveling device
By using a combination of clamping components and tab flattening components in the battery industry, the problem of unstable tab flattening in battery cells has been solved, thus improving cell quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-03-31
AI Technical Summary
In the current battery industry, the tabs cannot be stably fixed during the flattening process of the cell winding process, resulting in the cell being tilted, the tabs being over-flattened or under-flattened, which affects the quality of the cell.
A flattening device is adopted, including a clamping assembly and a tab flattening assembly. The clamping assembly consists of multiple jaws and a power assembly. The jaws form an axial limit, and the flattening head of the tab flattening assembly moves along the cell axis to improve the stability of the cell.
It improves the stability of electrode flattening, reduces cell shaking and tilting, lowers the probability of cell tilting, falling, and improper flattening, and ensures cell quality.
Smart Images
Figure CN224067688U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, specifically to a flattening device. Background Technology
[0002] In the current battery cell winding process, after the cell is wound out, the tabs located on both ends of the cell need to be flattened. Common methods for flattening the tabs cannot stably fix the cell, leading to issues such as tilting the cell, over-flattening the tabs, or under-flattening during the process, all of which affect the quality of the produced cells. Utility Model Content
[0003] This application mainly provides a flattening device that can improve the stability of the clamping assembly when holding the battery cell.
[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is: providing a flattening device, including a device body, a clamping assembly, and a tab flattening assembly. The clamping assembly is connected to the device body and includes multiple grippers and a first power assembly. A first accommodating space for axially limiting the battery cell is provided between the multiple grippers for vertically positioning the battery cell. The first power assembly drives and connects at least one of the grippers, and the first power assembly can drive at least one gripper to move away from the first accommodating space. The tab flattening assembly is connected to the device body and includes a first tapping head, a second tapping head, and a second power assembly. The second power assembly drives and connects the first tapping head and the second tapping head, and the second power assembly can drive the first tapping head and the second tapping head to move towards each other along the axial direction of the battery cell to flatten the end face of the battery cell.
[0005] In one specific embodiment, the plurality of grippers includes a first gripper, a second gripper, and a third gripper. The first gripper has a first clamping surface, the second gripper has a second clamping surface, and the third gripper has a third clamping surface. The first accommodating space is located between the first clamping surface, the second clamping surface, and the third clamping surface. The contour shapes of the first clamping surface, the second clamping surface, and the third clamping surface match the contour shape of the side of the battery cell.
[0006] In one specific embodiment, the first power assembly includes a first lifting cylinder, a second lifting cylinder, and a fixed rod fixed to the main body of the equipment. The first lifting cylinder is driven and connected to the first gripper, and the second lifting cylinder is driven and connected to the second gripper. The first lifting cylinder and the second lifting cylinder are respectively disposed at both ends of the fixed rod. The third gripper is connected to the fixed rod. The first gripper can move parallel to the fixed rod under the drive of the first lifting cylinder, and the second gripper can move parallel to the fixed rod under the drive of the second lifting cylinder.
[0007] In one specific embodiment, the second power assembly includes a first driving member and a second driving member, wherein the first driving member is driven to connect to the first racket head, and the second driving member is driven to connect to the second racket head.
[0008] In one specific embodiment, the first driving component includes a first movable shaft and a first motor, the first movable shaft being movably connected to the first hammer head, and the first motor being driven and connected to at least one of the first movable shaft and the first hammer head; the second driving component includes a second movable shaft and a second motor, the second movable shaft being movably connected to the second hammer head, and the second motor being driven and connected to at least one of the second movable shaft and the second hammer head; the first motor and the second motor are fixedly connected to the main body of the device; wherein, the first movable shaft and the second movable shaft are arranged parallel to the axial direction of the battery cell.
[0009] In one specific embodiment, the electrode flattening assembly further includes an auxiliary limiting shaft. The first tapping head includes a first tapping plate and a first connecting rod. The first tapping plate is fixed to one end of the first connecting rod, and the first connecting rod is movably connected to the auxiliary limiting shaft and the first movable shaft. The second tapping head includes a second tapping plate and a second connecting rod. The second tapping plate is fixed to one end of the second connecting rod, and the second connecting rod is movably connected to the auxiliary limiting shaft and the second movable shaft. The auxiliary limiting shaft is connected to the device body parallel to the axial direction of the battery cell.
[0010] In one specific embodiment, the electrode flattening assembly further includes a positioning optical coupler and a light-blocking plate. The positioning optical coupler includes a light-emitting part and a light-absorbing part. The light-blocking plate is disposed in a one-to-one correspondence with the positioning optical coupler. When the light-blocking plate blocks the light-emitting part and the light-absorbing part, the first tap head and / or the second tap head abuts against the end face of the battery cell. The light-blocking plate is disposed on at least one of the first tap head and the second tap head, and the positioning optical coupler is disposed on the device body. Alternatively, the positioning optical coupler is disposed on at least one of the first tap head and the second tap head, and the light-blocking plate is disposed on the device body.
[0011] In one specific embodiment, the electrode flattening assembly further includes a positioning optocoupler, which includes a light-emitting part and a light-absorbing part. When the light-absorbing part receives light emitted by the light-emitting part, the first tap head and / or the second tap head abuts against the end face of the battery cell. The light-absorbing part is disposed on at least one of the first tap head and the second tap head, and the light-emitting part is disposed on the device body. Alternatively, the light-emitting part is disposed on at least one of the first tap head and the second tap head, and the light-absorbing part is disposed on the device body.
[0012] In one specific embodiment, the flattening device further includes a visual positioning component, which includes a camera, a controller, a third movable axis, and a third power component. The camera is signal-connected to the controller. The camera is movably mounted on the third movable axis, facing at least one of the clamping component and the electrode flattening component. The third power component is drive-connected to at least one of the third movable axis and the camera. The third movable axis is arranged parallel to the axial direction of the battery cell in the main body of the device.
[0013] In one specific embodiment, the flattening device further includes a light source assembly, which includes a light-emitting element and a fourth movable shaft. The light-emitting element is disposed toward at least one of the clamping assembly and the electrode flattening assembly. The light-emitting element is movably connected to the fourth movable shaft, which is disposed parallel to the axial direction of the battery cell in the main body of the device.
[0014] The beneficial effects of this application are as follows: Unlike the prior art, in the embodiments of this application, multiple grippers are provided in the clamping assembly. By utilizing the cooperation of multiple grippers, the battery cell is confined in the first receiving space perpendicular to the axial direction of the battery cell. This can improve the stability of the battery cell while the first and second clamping heads act on the end face of the battery cell along the axial direction of the battery cell, reducing the occurrence of battery cell shaking and tilting. This reduces the probability of the battery cell being tilted, falling, over-flattened, or under-flattened under the action of the first and second clamping heads, effectively improving the stability of the tab flattening step and providing a certain degree of guarantee for the quality of the produced battery cell. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the assembly structure of the first embodiment of the flattening device provided in this application;
[0017] Figure 2 This is a schematic diagram of the assembly structure of the second embodiment of the flattening device provided in this application;
[0018] Figure 3 This is a schematic diagram of the assembly structure of the third embodiment of the flattening device provided in this application;
[0019] Figure 4 yes Figure 3 Enlarged structural diagram of region A in the middle;
[0020] Figure 5 This is a schematic diagram of the assembly structure of the fourth embodiment of the flattening device provided in this application;
[0021] Figure 6 This is a cross-sectional structural schematic diagram of an embodiment of the flattening device provided in this application.
[0022] Attached image labels:
[0023] 1. Flattening device; 2. Equipment body; 3. Clamping assembly; 31. First gripper; 311. First clamping surface; 32. Second gripper; 321. Second clamping surface; 33. Third gripper; 331. Third clamping surface; 34. First accommodating space; 35. First power assembly; 351. First lifting cylinder; 352. Second lifting cylinder; 353. Fixing rod; 4. Electrode flattening assembly; 41. First clamping head; 411. First clamping plate; 412. First connecting rod; 42. Second clamping head; 421. Second... 422. Second link; 43. Second power assembly; 431. First drive component; 432. First movable shaft; 433. First motor; 434. Second drive component; 435. Second movable shaft; 436. Second motor; 44. Auxiliary limiting shaft; 45. Positioning optocoupler; 451. Light-emitting part; 452. Light-absorbing part; 46. Light-blocking plate; 5. Visual positioning assembly; 51. Camera; 52. Third movable shaft; 6. Light source assembly; 61. Light-emitting component; 62. Fourth movable shaft; Axial direction X of the battery cell. Detailed Implementation
[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0025] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. A process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.
[0026] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.
[0027] In the current battery cell winding process, after the cell is wound out, the tabs located on both ends of the cell need to be flattened. Common methods for flattening the tabs cannot stably fix the cell, leading to issues such as tilting the cell, over-flattening the tabs, or under-flattening during the process, all of which affect the quality of the produced cells.
[0028] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.
[0029] See Figures 1-6 , Figure 1 This is a schematic diagram of the assembly structure of the first embodiment of the flattening device provided in this application. Figure 2 This is a schematic diagram of the assembly structure of the second embodiment of the flattening device provided in this application. Figure 3 This is a schematic diagram of the assembly structure of the third embodiment of the flattening device provided in this application. Figure 4 yes Figure 3 A magnified structural diagram of region A in the middle. Figure 5 This is a schematic diagram of the assembly structure of the fourth embodiment of the flattening device provided in this application. Figure 6 This is a cross-sectional structural schematic diagram of an embodiment of the flattening device provided in this application.
[0030] To address the aforementioned technical problems, this application provides a flattening device 1, comprising a device body 2, a clamping assembly 3, and a tab flattening assembly 4. The clamping assembly 3 is connected to the device body 2 and may include multiple grippers and a first power assembly 35. A first accommodating space 34 for axially X-limiting the battery cell is provided between the multiple grippers. The first power assembly 35 drives at least one gripper and is capable of driving at least one gripper to move away from the first accommodating space 34.
[0031] The electrode flattening assembly 4 is connected to the main body 2 of the device. The electrode flattening assembly 4 may include a first tap 41, a second tap 42, and a second power assembly 43. The second power assembly 43 drives the first tap 41 and the second tap 42 to move in opposite directions along the axial direction X of the cell to flatten the end face of the cell.
[0032] In the structure provided in this specific embodiment, the clamping assembly 3 is provided with multiple grippers and a first power assembly 35. The multiple grippers cooperate with each other to confine the battery cell in the first accommodating space 34 perpendicular to the battery cell's axial direction X. This can improve the stability of the battery cell while the first tapping head 41 and the second tapping head 42 act on the end face of the battery cell along the battery cell's axial direction, reducing the occurrence of battery cell shaking and tilting. This reduces the probability of the battery cell being tilted, falling, over-flattened, or under-flattened under the action of the first tapping head 41 and the second tapping head 42, effectively improving the stability of the tab flattening step and providing a certain degree of guarantee for the quality of the produced battery cell.
[0033] In one specific embodiment of this application, the plurality of grippers includes a first gripper 31, a second gripper 32, and a third gripper 33. The first gripper 31 has a first clamping surface 311, the second gripper 32 has a second clamping surface 321, and the third gripper 33 has a third clamping surface 331. A first accommodating space 34 is located between the first clamping surface 311, the second clamping surface 321, and the third clamping surface 331, and the outline shapes of the first clamping surface 311, the second clamping surface 321, and the third clamping surface 331 match the outline shapes of the side surfaces of the battery cell.
[0034] In the structure provided in this specific embodiment, the number of grippers can be three. Each gripper has a corresponding clamping surface. The first clamping surface 311, the second clamping surface 321, and the third clamping surface 331 cooperate with each other and match the contour shape of the side of the battery cell to confine the battery cell in the first receiving space 34. The first clamping surface 311, the second clamping surface 321, and the third clamping surface 331 can improve the stability of the first gripper 31, the second gripper 32, and the third gripper 33 in clamping the battery cell, thereby reducing the occurrence of battery cell shaking and tilting, and effectively improving the stability of the tab flattening step.
[0035] In one specific embodiment of this application, the first power assembly 35 includes a first lifting cylinder 351, a second lifting cylinder 352, and a fixing rod 353 fixed to the main body 2 of the equipment. The first lifting cylinder 351 drives and connects to a first gripper 31, and the second lifting cylinder 352 drives and connects to a second gripper 32. The first lifting cylinder 351 and the second lifting cylinder 352 are respectively disposed at both ends of the fixing rod 353. The third gripper 33 is connected to the fixing rod 353. The first gripper 31 can move parallel to the fixing rod 353 under the drive of the first lifting cylinder 351, and the second gripper 32 can move parallel to the fixing rod 353 under the drive of the second lifting cylinder 352.
[0036] In the structure provided in this specific embodiment, the first lifting cylinder 351 drives the first gripper 31, and the second lifting cylinder 352 drives the second gripper 32. The first gripper 31 and the second gripper 32 can move independently parallel to the fixed rod 353 under the action of the first power component 35, thereby accurately controlling the movement of the first gripper 31 and the second gripper 32, and more flexibly controlling the position and fixing status of the battery cell, effectively improving the usability of the flattening device 1.
[0037] Specifically, the first clamping surface 311, the second clamping surface 321, and the third clamping surface 331 can surround the side of the battery cell. The first clamping surface 311, the second clamping surface 321, and the third clamping surface 331 can be connected to each other so that the outline of the first accommodating space 34 fits tightly with the side of the battery cell.
[0038] Optionally, the fixing rod 353 can be perpendicular to the axial direction X of the battery cell. Since the side of the battery cell is usually cylindrical, the outline shape of the first receiving space 34 can be correspondingly cylindrical, and the radial dimension of the circumference of the first receiving space 34 is the same as the radial dimension of the battery cell.
[0039] In a specific embodiment of this application, the second power assembly 43 may include a first drive member 431 and a second drive member 434. The first drive member 431 is driven to connect to the first racket head 41, and the second drive member 434 is driven to connect to the second racket head 42.
[0040] In the structure provided in this specific embodiment, the first tapping head 41 and the second tapping head 42 can move independently under the action of the second power component 43, thereby enabling precise control of parameters such as the position, moving speed, and moving acceleration of the first tapping head 41 and the second tapping head 42, and more flexibly and accurately controlling the process of flattening the end face of the battery cell, effectively improving the usability of the flattening device 1.
[0041] In one specific embodiment of this application, the first driving component 431 includes a first movable shaft 432 and a first motor 433. The first movable shaft 432 is movably connected to a first hammer head 41, and the first motor 433 is driven by at least one of the first movable shaft 432 and the first hammer head 41. The second driving component 434 includes a second movable shaft 435 and a second motor 436. The second movable shaft 435 is movably connected to a second hammer head 42, and the second motor 436 is driven by at least one of the second movable shaft 435 and the second hammer head 42. The first motor 433 and the second motor 436 are fixedly connected to the device body 2. The first movable shaft 432 and the second movable shaft 435 are arranged parallel to the X-axis of the battery cell.
[0042] In the structure provided in this specific embodiment, the first tapping head 41 can be driven by the first motor 433 and moved along the first movable shaft 432, and the second tapping head 42 can be driven by the second motor 436 and moved along the second movable shaft 435. The first movable shaft 432 and the second movable shaft 435 are set parallel to the axial direction X of the battery cell, so that the first tapping head 41 and the second tapping head 42 can act on the end face of the battery cell along the axial direction X of the battery cell to realize the flattening process of the tabs on the end face of the battery cell.
[0043] In one specific embodiment of this application, the electrode flattening assembly 4 further includes an auxiliary limiting shaft 44. The first tapping head 41 includes a first tapping plate 411 and a first connecting rod 412. The first tapping plate 411 is fixed to one end of the first connecting rod 412, and the first connecting rod 412 is movably connected to the auxiliary limiting shaft 44 and the first movable shaft 432. The second tapping head 42 includes a second tapping plate 421 and a second connecting rod 422. The second tapping plate 421 is fixed to one end of the second connecting rod 422, and the second connecting rod 422 is movably connected to the auxiliary limiting shaft 44 and the second movable shaft 435. The auxiliary limiting shaft 44 is connected to the device body 2 parallel to the axial direction X of the battery cell.
[0044] In the structure provided in this specific embodiment, an auxiliary limiting shaft 44 may also be provided. The first movable shaft 432 and the auxiliary limiting shaft 44 are connected at two points to the first connecting rod 412, thereby limiting the first connecting rod 412 and reducing the probability of the first connecting rod 412 rotating around the first movable shaft 432. This effectively limits the first tapping plate 411, allowing it to align with the end face of the battery cell, and thus stably tap the end face of the battery cell under the drive of the first motor 433. The same principle applies to the second movable shaft 435, the second connecting rod 422, the second tapping plate 421, and the second motor 436. The setting of the auxiliary limiting shaft 44 can effectively improve the stability of the tab flattening step and provide a certain degree of guarantee for the quality of the produced battery cell.
[0045] Optionally, the first movable shaft 432 is connected to one end of the first connecting rod 412, the first striking plate 411 is connected to the other end of the first connecting rod 412, and the auxiliary positioning shaft can be connected between the two ends of the first connecting rod 412. The second movable shaft 435, the second connecting rod 422, and the second striking plate 421 are similarly connected.
[0046] See Figures 2-4 In one specific embodiment of this application, the electrode flattening assembly 4 further includes a positioning optical coupler 45 and a light-blocking plate 46. The positioning optical coupler 45 includes a light-emitting part 451 and a light-absorbing part 452, and the light-blocking plate 46 is arranged in a one-to-one correspondence with the positioning optical coupler 45. When the light-blocking plate 46 blocks the light-emitting part 451 and the light-absorbing part 452, the first tapping head 41 and / or the second tapping head 42 abut against the end face of the battery cell.
[0047] The light-blocking plate 46 can be disposed in at least one of the first beat head 41 and the second beat head 42, and the positioning optical coupler 45 is disposed in the main body 2 of the device.
[0048] Optionally, the positioning optocoupler 45 can also be set in at least one of the first beat head 41 and the second beat head 42, and the light-blocking plate 46 is set in the main body 2 of the device.
[0049] Specifically, the light-blocking sheet 46 can be an opaque metal sheet that connects at least one of the first beater head 41, the second beater head 42, and the main body 2 of the device. When the light-blocking sheet 46 is located between the light-emitting part 451 and the light-absorbing part 452, the light path between the light-emitting part 451 and the light-absorbing part 452 is blocked by the light-blocking sheet 46.
[0050] In the structure provided in this specific embodiment, the light-emitting part 451 of the positioning optocoupler 45 can emit light, and the light-absorbing part 452 can absorb the light emitted by the light-emitting part 451. When the light-blocking plate 46 blocks between the light-emitting part 451 and the light-absorbing part 452, it can prevent the light-absorbing part 452 from absorbing the light emitted by the light-emitting part 451. When the light-absorbing part 452 absorbs the light emitted by the light-emitting part 451, the positioning optocoupler 45 generates an electrical signal that is different from when it does not absorb the light emitted by the light-emitting part 451. Therefore, when the positional relationship between the light-blocking plate 46 and the positioning optocoupler 45 changes with the relative movement of the first tapping head 41, the second tapping head 42 and the device body 2, the electrical signal output by the positioning optocoupler 45 changes synchronously. This allows the electrical signal to reflect the positional relationship between the first tapping head 41, the second tapping head 42 and the device body 2, thereby effectively monitoring the positional relationship between the first tapping head 41, the second tapping head 42 and the end face of the battery cell, and improving the stability of the tab flattening step.
[0051] In one specific embodiment of this application, the electrode flattening assembly 4 further includes a positioning optical coupler 45, which includes a light-emitting part 451 and a light-absorbing part 452. When the light-absorbing part 452 receives the light emitted by the light-emitting part 451, the first tapping head 41 and / or the second tapping head 42 abut against the end face of the battery cell.
[0052] The light-absorbing part 452 can be disposed in at least one of the first beat head 41 and the second beat head 42, and the light-emitting part 451 is disposed in the main body 2 of the device.
[0053] Optionally, the light-emitting part 451 may also be disposed in at least one of the first racket head 41 and the second racket head 42, and the light-absorbing part 452 may be disposed in the main body 2 of the device.
[0054] In the structure provided in this specific embodiment, the light-emitting part 451 and the light-absorbing part 452 of the positioning optocoupler 45 are arranged in different positions. When the positional relationship between the light-emitting part 451 and the light-absorbing part 452 changes with the relative movement of the first tap head 41, the second tap head 42 and the device body 2, the electrical signal output by the positioning optocoupler 45 changes synchronously. Thus, the positional relationship between the first tap head 41, the second tap head 42 and the device body 2 can be reflected by the electrical signal, thereby effectively monitoring the positional relationship between the first tap head 41, the second tap head 42 and the end face of the battery cell, and improving the stability of the tab flattening step.
[0055] In one specific embodiment of this application, the flattening device 1 further includes a visual positioning component 5, which includes a camera 51, a controller, a third movable axis 52, and a third power component. The camera 51 is signal-connected to the controller. The camera 51 is movably mounted on the third movable axis 52, facing at least one of the clamping component 3 and the electrode flattening component 4. The third power component drives and connects to at least one of the third movable axis 52 and the camera 51. The third movable axis 52 is mounted on the device body 2 parallel to the X-axis of the battery cell.
[0056] The structure provided in this specific embodiment also includes a visual positioning component 5. The camera 51 of the visual positioning component 5 can move along the third movable axis 52 under the drive of the third power component, thereby acquiring images related to the battery cell. The visual positioning component 5 can assist the first tapping head 41 and the second tapping head 42 in aligning with the end face of the battery cell, or control the working parameters of the first tapping head 41 and the second tapping head 42 in the tab flattening step. It can also monitor whether the tab is flattened in place, effectively improving the availability of the flattening device 1 and providing a certain degree of guarantee for the quality of the produced battery cell.
[0057] In one specific embodiment of this application, the flattening device 1 may further include a light source assembly 6, which includes a light-emitting element 61 and a fourth movable shaft 62. The light-emitting element 61 is disposed toward at least one of the clamping assembly 3 and the electrode flattening assembly 4, and the light-emitting element 61 is movably connected to the fourth movable shaft 62. The fourth movable shaft 62 is disposed parallel to the axial direction X of the battery cell on the device body 2.
[0058] The structure provided in this specific embodiment may also include a light source assembly 6. The light-emitting element 61 of the light source assembly 6 can move along the fourth movable axis 62. The light-emitting element 61 can emit light to play an illumination function, providing sufficient light conditions for the visual positioning assembly 5 to acquire images related to the battery cell, improving the working stability and efficiency of the visual positioning assembly 5, thereby improving the availability of the flattening device 1 and providing a certain degree of guarantee for the quality of the produced battery cell.
[0059] The above description is only a partial embodiment of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the scope of patent protection of this application.
Claims
1. A flattening device, characterized in that The device comprises: a device body (2); a clamping assembly (3) connected to the device body (2), the clamping assembly (3) comprising a plurality of clamping jaws and a first power assembly (35), the plurality of clamping jaws being provided with a first accommodating space (34) for vertically limiting the axial position of the battery cell, the first power assembly (35) being drivingly connected to at least one of the clamping jaws, and the first power assembly (35) being capable of driving at least one of the clamping jaws to move away from the first accommodating space (34); a tab flattening assembly (4) connected to the device body (2), the tab flattening assembly (4) comprising a first flattening head (41), a second flattening head (42), and a second power assembly (43) drivingly connected to the first flattening head (41) and the second flattening head (42), the second power assembly (43) being capable of driving the first flattening head (41) and the second flattening head (42) to move towards each other along the axial direction of the battery cell to flatten the end face of the battery cell.
2. The flattening device according to claim 1, wherein the plurality of clamping jaws comprises a first clamping jaw (31), a second clamping jaw (32), and a third clamping jaw (33), the first clamping jaw (31) being provided with a first clamping surface (311), the second clamping jaw (32) being provided with a second clamping surface (321), and the third clamping jaw (33) being provided with a third clamping surface (331), the first accommodating space (34) being located between the first clamping surface (311), the second clamping surface (321), and the third clamping surface (331), and the first clamping surface (311), the second clamping surface (321), and the third clamping surface (331) having a contour shape matching that of the side surface of the battery cell.
3. The flattening device according to claim 2, wherein the first power assembly (35) comprises a first lifting cylinder (351), a second lifting cylinder (352), and a fixed rod (353) fixed to the device body (2), the first lifting cylinder (351) being drivingly connected to the first clamping jaw (31), the second lifting cylinder (352) being drivingly connected to the second clamping jaw (32), the first lifting cylinder (351) and the second lifting cylinder (352) being respectively arranged at two ends of the fixed rod (353), and the third clamping jaw (33) being connected to the fixed rod (353), the first clamping jaw (31) being capable of moving parallel to the fixed rod (353) under the driving of the first lifting cylinder (351), and the second clamping jaw (32) being capable of moving parallel to the fixed rod (353) under the driving of the second lifting cylinder (352).
4. The flattening device according to claim 1, wherein the second power assembly (43) comprises a first driving member (431) and a second driving member (434), the first driving member (431) being drivingly connected to the first flattening head (41), and the second driving member (434) being drivingly connected to the second flattening head (42).
5. The flattening device according to claim 4, wherein The first driving member (431) comprises a first movable shaft (432) and a first motor (433), the first movable shaft (432) is movably connected to the first beating head (41), and the first motor (433) is drivingly connected to at least one of the first movable shaft (432) and the first beating head (41); the second driving member (434) comprises a second movable shaft (435) and a second motor (436), the second movable shaft (435) is movably connected to the second beating head (42), and the second motor (436) is drivingly connected to at least one of the second movable shaft (435) and the second beating head (42); the first motor (433) and the second motor (436) are fixedly connected to the device body (2); The first movable shaft (432) and the second movable shaft (435) are arranged in parallel with the axial direction of the battery cell.
6. The device according to claim 5, wherein The tab flattening assembly (4) further comprises an auxiliary limiting shaft (44), the first beating head (41) comprises a first flattening plate (411) and a first connecting rod (412), the first flattening plate (411) is fixed to one end of the first connecting rod (412), and the first connecting rod (412) is movably connected to the auxiliary limiting shaft (44) and the first movable shaft (432); the second beating head (42) comprises a second flattening plate (421) and a second connecting rod (422), the second flattening plate (421) is fixed to one end of the second connecting rod (422), and the second connecting rod (422) is movably connected to the auxiliary limiting shaft (44) and the second movable shaft (435); The auxiliary limiting shaft (44) is connected to the device body (2) in parallel with the axial direction of the battery cell.
7. The device according to claim 5, wherein The tab flattening assembly (4) further comprises a positioning photoelectric coupler (45) and a light blocking sheet (46), the positioning photoelectric coupler (45) comprises a light emitting part (451) and a light absorbing part (452), the light blocking sheet (46) is arranged one-to-one with the positioning photoelectric coupler (45), when the light blocking sheet (46) blocks between the light emitting part (451) and the light absorbing part (452), the first beating head (41) and / or the second beating head (42) abuts against the end face of the battery cell; The light blocking sheet (46) is arranged in at least one of the first beating head (41) and the second beating head (42), and the positioning photoelectric coupler (45) is arranged in the device body (2); and / or the positioning photoelectric coupler (45) is arranged in at least one of the first beating head (41) and the second beating head (42), and the light blocking sheet (46) is arranged in the device body (2).
8. The device according to claim 5, wherein The tab flattening assembly (4) further comprises a positioning light coupling (45), the positioning light coupling (45) comprising a light emitting part (451) and a light absorbing part (452), when the light absorbing part (452) receives light emitted by the light emitting part (451), the first flattening head (41) and / or the second flattening head (42) abuts against the end face of the battery cell; Wherein, the light absorbing part (452) is arranged in at least one of the first flattening head (41) and the second flattening head (42), and the light emitting part (451) is arranged in the device body (2); and / or, the light emitting part (451) is arranged in at least one of the first flattening head (41) and the second flattening head (42), and the light absorbing part (452) is arranged in the device body (2).
9. The flattening device according to claim 1, characterized in that, Further comprising a visual positioning assembly (5), the visual positioning assembly (5) comprising a camera (51), a controller, a third movable shaft (52), and a third power assembly, the camera (51) being signal connected to the controller, the camera (51) being movably arranged on the third movable shaft (52) towards at least one of the clamping assembly (3) and the tab flattening assembly (4), the third power assembly being drivingly connected to at least one of the third movable shaft (52) and the camera (51), the third movable shaft (52) being arranged on the device body (2) in parallel with the axial direction of the battery cell.
10. The flattening device according to claim 9, characterized in that, Further comprising a light source assembly (6), the light source assembly (6) comprising a light emitting element (61) and a fourth movable shaft (62), the light emitting element (61) being arranged towards at least one of the clamping assembly (3) and the tab flattening assembly (4), the light emitting element (61) being movably connected to the fourth movable shaft (62), the fourth movable shaft (62) being arranged on the device body (2) in parallel with the axial direction of the battery cell.