Full-tab flattening fixture

Abstract

The present application provides a full-tab flattening fixture. The full-tab flattening fixture comprises mounting bases, pressing plates, and a reflector; the mounting bases are arranged in a pair, and two mounting bases in the pair are spaced apart in a first direction; the pressing plates are made of a transparent material; the ends of the two mounting bases facing each other are respectively provided with the pressing plates; the pressing plates are used for abutting against a battery cell and flattening a full tab of the battery cell; at least one of the mounting bases is provided with the reflector; the reflector is arranged on the side of the pressing plate away from the other mounting base, and a reflective surface of the reflector is arranged to face the pressing plate.

Description

A full-ear flattening tool

[0001] This application claims priority to Chinese Patent Application No. 2024221396898, filed with the Chinese Patent Office on August 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of battery-related technology, and more specifically, to a full-tab flattening tool. Background Technology

[0003] With the development of new energy technologies, battery technology is also constantly improving. Currently, the production process of battery cells, such as cylindrical cells, requires steps such as winding and tab pressing. Technical issues

[0004] However, in related technologies, after the winding machine rolls out all the tabs, the batteries are mostly removed manually from the conveyor belt, and the pre-bending state of the tabs is visually judged. Therefore, the current manual handling of batteries carries the risk of damaging the batteries or misplacing them, resulting in defective products being shipped out. At the same time, it is impossible to accurately judge the effect of flattening the batteries. As a result, during the battery production process, a batch of batteries with poor tab pre-bending effect are sent to subsequent processes, resulting in a serious loss of yield. Technical solutions

[0005] This application provides a full tab flattening fixture, which includes mounting bases arranged in pairs and spaced apart along a first direction; a transparent pressure plate, with a pressure plate provided at one end of each of the two mounting bases facing each other, the pressure plate being used to abut against the battery cell and flatten the full tabs of the battery cell; and a reflector, with a reflector provided on at least one of the mounting bases, the reflector being located on the side of the pressure plate away from the other mounting base, the reflective surface of the reflector facing the pressure plate. Beneficial effects

[0006] The beneficial effects of this application are as follows: The full-tab flattening fixture uses pressure plates mounted on two spaced-apart mounting bases to clamp and fix the battery cell. One of the pressure plates performs the flattening operation of the full tabs of the battery cell. The transparent pressure plates used in this application allow for real-time observation of the flattening process and effect using a reflector mounted on the mounting base. The entire process does not require manual removal of the battery, avoiding potential damage and defective products as in related technologies. Furthermore, the entire process of flattening the full tabs using the pressure plates in this application can be observed in real-time, improving the accuracy of the full-tab flattening judgment. Attached Figure Description

[0007] Figure 1 shows a three-dimensional structural schematic diagram of the full-tab flattening tool of this application;

[0008] Figure 2 shows a front view of the full-tab flattening tooling of this application;

[0009] Figure 3 shows a top view of the full-tab flattening tool of this application;

[0010] Figure 4 shows a side view of the full-tab flattening tool of this application;

[0011] Figure 5 shows a bottom view of the full-tab flattening tool of this application.

[0012] The above figures include the following reference numerals:

[0013] 10. Mounting base; 20. Fixing block; 201. Mounting hole; 202. Notch; 210. Base; 220. Cover plate; 30. Pressure plate; 40. Reflector; 50. Slider; 510. Base plate; 520. Boss.

[0014] Implementation methods of this application

[0015] To address the increased defect rate in battery production caused by manual handling and visual inspection of tab flattening during battery manufacturing, this application provides a full tab flattening fixture for flattening all tabs of the battery cell. The battery is a cylindrical full tab battery.

[0016] The full tab flattening fixture in this embodiment can perform full tab flattening operation on the battery cell on the conveyor belt. That is, when the battery cell moves on the conveyor belt to the position of the full tab flattening fixture, the full tab flattening fixture can perform full tab flattening operation on the battery cell.

[0017] As shown in Figures 1 to 5, the full tab flattening fixture includes a mounting base 10, a pressure plate 30, and a reflector 40. The mounting bases 10 are arranged in pairs, and the two mounting bases 10 are spaced apart along a first direction. The pressure plate 30 is made of transparent material, and each of the two mounting bases 10 is provided with a pressure plate 30 at one end facing each other. The pressure plate 30 is used to abut against the battery cell and flatten the full tab of the battery cell. At least one of the mounting bases 10 is provided with a reflector 40. The reflector 40 is located on the side of the pressure plate 30 away from the other mounting base 10, and the reflective surface of the reflector 40 faces the pressure plate 30.

[0018] Specifically, one end of the battery cell has a tab extending out, one pressure plate 30 abuts against the other end of the battery cell, and the other pressure plate 30 abuts against one side of the tab and flattens the tab. A reflector 40 is set on the mounting plate on one side of the tab. Since the pressure plate 30 is transparent, the process of the pressure plate 30 squeezing the tab and the flattening effect can be observed in real time through the reflector 40.

[0019] It is understandable that the reflector 40 is set on the side of the pressure plate 30 away from the battery cell. Therefore, in order to observe the flattening of the full tab, the pressure plate 30 is made of transparent material, so that the entire process of the pressure plate 30 and the full tab being flattened can be seen through the reflector 40.

[0020] Among them, the pressure plate 30 can be a glass pressure plate 30.

[0021] In this embodiment, the full tab flattening fixture uses two spaced mounting bases 10 to install pressure plates 30 to clamp and fix the battery cell. One of the pressure plates 30 performs the flattening operation of the full tabs of the battery cell. The pressure plate 30 used in this application is transparent. Therefore, during the flattening process of the full tabs of the battery cell, the flattening process and effect can be observed in real time using a reflector 40 set on the mounting base 10. The entire process does not require manual removal of the battery, avoiding potential damage to the battery and the generation of defective products in related technologies. Furthermore, the entire process of the pressure plate 30 flattening the full tabs in this application can be observed in real time, improving the accuracy of the full tab flattening judgment.

[0022] The first direction is the length direction of the mounting base 10, that is, the first direction is the X direction shown in Figure 1.

[0023] It should be noted that in this embodiment, a reflector 40 may be provided on only one of the mounting bases 10. In this case, the reflector 40 is located on the mounting base 10 where the pressure plate 30 for flattening the full tabs is located. At this time, the placement direction of the battery cells on the conveyor belt needs to be consistent so as to facilitate observation of the flattening operation through the reflector 40. Alternatively, a reflector 40 may be provided on both mounting bases 10. In this case, it can be used to observe the flattening operation of the full tabs of the battery cells when the placement directions of the battery cells are different.

[0024] As shown in Figures 1 to 5, the reflector 40 and the pressure plate 30 are both located on the top surface of the mounting base 10.

[0025] Specifically, the full-tie flattening fixture also includes a fixing block 20 disposed on the mounting base 10. The fixing block 20 is perpendicular to the mounting base 10 and has a mounting hole 201 extending in a first direction. The pressure plate 30 is fixed inside the mounting hole 201.

[0026] The pressure plate 30 is fixed to the mounting base 10 by the fixing block 20. The fixing block 20 provides mounting holes 201 for the installation of the pressure plate 30, so as to achieve the effect of the pressure plate 30 being perpendicular to the mounting base 10. The mounting holes 201 extend along the first direction to ensure the installation accuracy of the pressure plate 30, so that when the pressure plate 30 presses the battery cell along the first direction, the pressure plate 30 provides a flush contact surface.

[0027] The fixing block 20 and the mounting base 10 can be fixed by welding or by screws, depending on whether the fixing block 20 can be stably set on the mounting base 10.

[0028] In this embodiment, the fixing block 20 includes a base 210 and a cover plate 220 arranged along a first direction. The base 210 and the cover plate 220 are detachably connected to form a limiting groove communicating with the mounting hole 201. At least a portion of the peripheral edge of the pressure plate 30 extends into the interior of the limiting groove.

[0029] Specifically, both the base 210 and the cover plate 220 have a portion of the mounting hole 201. The base 210 and the cover plate 220 are installed together to form a complete mounting hole 201. The base 210 and the cover plate 220 form an annular limiting groove so that the peripheral edge of the pressure plate 30 is limited and installed inside the limiting groove. The base 210 and the cover plate 220 clamp and fix the pressure plate 30.

[0030] The base 210 and the cover plate 220 adopt a detachable connection structure, which can be connected by bolts, making disassembly easy; of course, they can also be connected by welding or snap-fit.

[0031] As shown in Figure 1, the mounting hole 201 is a round hole, and the pressure plate 30 is a cylindrical structure to facilitate the flattening operation of the full tab.

[0032] In this embodiment, the top of the fixing block 20 has a notch 202 communicating with the mounting hole 201. By providing the notch 202, the pressure plate 30 can be installed into the limiting groove and the interior of the mounting hole 201.

[0033] In this embodiment, the pressure plate 30 is arranged perpendicularly to the mounting base 10, and the reflective surface of the reflector 40 can be arranged parallel to the pressure plate 30 or at an angle to the pressure plate 30.

[0034] In the specific embodiment shown in Figure 1, the reflective surface of the reflector 40 and the pressure plate 30 are set at an angle.

[0035] Specifically, the distance between the end of the reflector 40 closest to the mounting base 10 and the pressure plate 30 is less than the distance between the end of the reflector 40 furthest from the mounting base 10 and the pressure plate 30. The reflector 40 is tilted to create an angle between the reflective surface and the pressure plate 30. Since the human body observes the reflective surface downwards, this tilted orientation facilitates observation of the pressure plate 30's operation of flattening the tabs.

[0036] The specific angle between the reflective surface and the pressure plate 30 can be adaptively set as needed, so as to facilitate observation of the contact position between the pressure plate 30 and the tab.

[0037] In a specific embodiment not shown, the reflective surface of the reflector 40 is parallel to the pressure plate 30, and the parallel arrangement of the reflector 40 facilitates installation.

[0038] As shown in Figures 1 to 5, the reflector 40 is slidably mounted on the mounting base 10 along the first direction.

[0039] Specifically, a sliding reflector 40 is used to allow observation of the flattened tabs of the pressure plate 30 by sliding it to different positions to suit people of different heights, which helps to improve the accuracy of observation.

[0040] In one embodiment not shown in this example, the reflector 40 has a sliding part and the mounting base 10 has a mating part. The sliding part and the mating part are slidably engaged. One of the sliding part and the mating part is a slider 50 and the other is a groove. The slider 50 can slide along a first direction inside the groove.

[0041] The slide groove extends along the first direction. The sliding part and the mating part enable the reflector 40 to slide in the first direction to adjust the position of the reflector 40 through the setting of the slider 50 and the slide groove. The reflector 40 does not need to be disassembled. Only external force needs to be applied to change the position of the reflector 40, which is convenient to operate.

[0042] As shown in the specific embodiment of Figure 1, the mounting base 10 has a groove structure extending along a first direction, and the reflector 40 has a hole structure communicating with the groove structure. The full-tab flattening fixture also includes a fastener, a part of which extends through the hole structure into the interior of the groove structure. The reflector 40 is fixedly connected to the mounting base 10 by the fastener.

[0043] Specifically, by moving the reflector 40 along the first direction to a preset position, the reflector 40 is then locked with fasteners to achieve a fixed connection between the reflector 40 and the mounting base 10.

[0044] In this embodiment, the groove structure can be a blind hole with internal threads, and the fastener is a bolt. The reflector 40 is locked by the bolt engaging with the threaded blind hole. The fastener structure facilitates the disassembly and reassembly of the reflector 40 and also improves the stability of the reflector 40 during installation.

[0045] In this embodiment, the full-tab flattening fixture also includes a slider 50 and a driving component. Each end of the mounting base 10 that is far apart from each other is provided with a slider 50. The slider 50 is disposed on the bottom surface of the mounting base 10. At least one of the sliders 50 is provided with a driving component on one side along the first direction. The driving component is drivingly connected to the slider 50 and provides driving force for the slider 50 to move along the first direction.

[0046] Specifically, the driving component drives the slider 50 to move along the first direction, which in turn drives the mounting base 10 to move along the first direction, so that the two pressure plates 30 move closer or further apart along the first direction.

[0047] The driving component can be set on only one side of one of the sliders 50, that is, one slider 50 is fixed and the other slider 50 can be moved by the driving component; or both sliders 50 can be provided with corresponding driving components so that they move closer or further apart from each other in the first direction under the driving action of the driving component.

[0048] In this embodiment, two driving components are provided. The two driving components drive the slider 50 to move the mounting base 10 closer to or further away from each other.

[0049] It should be noted that the driving component is mounted on the bracket, and the slider 50 is slidably mounted on the bracket, thus enabling the driving component to drive the slider 50 to slide along the first direction. The bracket can also be the main support structure of the conveyor belt. Specifically, the driving component is fixedly connected to the bracket using screws.

[0050] In this embodiment, the driving component is a telescopic motor or a telescopic cylinder.

[0051] As shown in Figure 1, the slider 50 is disposed on the bottom surface of the mounting base 10 and is fixedly connected to the mounting base 10 by a locking component. The locking component can be a structural component such as a bolt. When fixing the slider 50 and the mounting base 10, multiple locking components are provided. Multiple locking components working together to fix the slider 50 and the mounting base 10 helps to improve the stability of the fixation of the slider 50 and the mounting base 10.

[0052] Specifically, the slider 50 has a base plate 510 and a boss 520 disposed on the base plate 510. The boss 520 is connected to the mounting base 10 to support the mounting base 10. The top surface of the boss 520 and the bottom surface of the mounting base 10 adopt a surface-to-surface fit structure, which is beneficial to improving the stability of the mounting base 10 during installation.

[0053] The base plate 510 is designed to limit the movement of the slider 50 within the support. The support has a slide rail arranged in the first direction, and the base plate 510 is installed inside the slide rail to limit the movement of the slider 50 within the first direction.

[0054] In this embodiment, along the first direction, the two sliders 50 are symmetrically arranged about the area between the two pressure plates 30, wherein the area between the two pressure plates 30 is used to clamp the battery cell, that is, the two sliders 50 are symmetrically arranged about the battery cell.

[0055] In this embodiment, there are two driving components, which are respectively driven and connected to two sliders 50. Along the first direction, the two driving components are symmetrically arranged about the area between the two pressure plates 30, where the area between the two pressure plates 30 is used to clamp the battery cell, that is, the two sliders 50 are symmetrically arranged about the battery cell.

[0056] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0057] The full tab flattening fixture uses two spaced mounting bases 10 to install pressure plates 30 to clamp and fix the battery cell. One of the pressure plates 30 performs the flattening operation of the full tabs of the battery cell. The pressure plate 30 used in this application is transparent. Therefore, during the flattening process of the full tabs of the battery cell, the flattening process and effect can be observed in real time using a reflector 40 set on the mounting base 10. The entire process does not require manual removal of the battery, avoiding potential damage to the battery and the generation of defective products in related technologies. Furthermore, the entire process of the pressure plate 30 flattening the full tabs in this application can be observed in real time, improving the accuracy of the full tab flattening judgment.

[0058] This application uses a reflector 40 that is slidably mounted on the mounting base 10. By sliding the reflector 40 to different positions on the mounting base 10 along the first direction, it can be adapted to people of different heights to observe the operation of flattening the full electrode tab of the pressure plate 30, which helps to improve the accuracy of observation.

Claims

1. A full-tab flattening fixture, comprising: Mounting base (10), the mounting base (10) is arranged in pairs, and the two mounting bases (10) arranged in pairs are spaced apart along a first direction; A transparent pressure plate (30) is provided at one end of each of the two mounting bases (10) facing each other. The pressure plate (30) is used to abut against the battery cell and flatten the full tab of the battery cell. A reflector (40) is provided on at least one of the mounting bases (10), the reflector (40) is located on the side of the pressure plate (30) away from the other mounting base (10), and the reflective surface of the reflector (40) is facing the pressure plate (30).

2. The full-tab flattening fixture according to claim 1, wherein, The reflector (40) and the pressure plate (30) are both disposed on the top surface of the mounting base (10), and the first direction is any one or a combination of two of the length directions of the mounting base (10).

3. The full-tab flattening fixture according to claim 1, wherein, The reflective surface of the mirror (40) is parallel to the pressure plate (30); or The distance between the end of the reflector (40) near the mounting base (10) and the pressure plate (30) is less than the distance between the end of the reflector (40) away from the mounting base (10) and the pressure plate (30). The reflective surface of the reflector (40) and the pressure plate (30) are set at an angle.

4. The full-tab flattening fixture according to claim 1, wherein, The full-tie flattening fixture also includes a fixing block (20) disposed on the mounting base (10). The fixing block (20) is perpendicular to the mounting base (10). The fixing block (20) has a mounting hole (201) extending along the first direction. The pressure plate (30) is fixed inside the mounting hole (201).

5. The full-tab flattening fixture according to claim 4, wherein, The fixing block (20) includes a base (210) and a cover plate (220) arranged along the first direction. The base (210) and the cover plate (220) are detachably connected to form a limiting groove communicating with the mounting hole (201). At least a portion of the peripheral edge of the pressure plate (30) extends into the interior of the limiting groove.

6. The full-tab flattening fixture according to claim 5, wherein, The top of the fixing block (20) has a notch (202) that communicates with the mounting hole (201).

7. The full-tab flattening fixture according to claim 1, wherein, The reflector (40) is slidably mounted on the mounting base (10) along the first direction.

8. The full-tab flattening fixture according to claim 7, wherein, The reflector (40) has a sliding part, and the mounting base (10) has a mating part. The sliding part and the mating part are slidably engaged. One of the sliding part and the mating part is a slider (50) and the other is a groove. The slider (50) can slide in the first direction inside the groove.

9. The full-tab flattening fixture according to claim 7, wherein, The mounting base (10) has a groove structure extending along the first direction, and the reflector (40) has a hole structure communicating with the groove structure. The full-tab flattening tool also includes a fastener, a part of which extends through the hole structure into the interior of the groove structure. The reflector (40) is fixedly connected to the mounting base (10) by the fastener.

10. The full-tab flattening fixture according to any one of claims 1 to 9, wherein, The full-bar flattening fixture also includes: The slider (50) is provided at one end of each of the mounting bases (10) that are far apart from each other, and the slider (50) is provided on the bottom surface of the mounting base (10); A driving member is provided on one side of at least one of the sliders (50) along the first direction, the driving member is drivingly connected to the slider (50), and the driving member provides driving force for the slider (50) to move along the first direction.

11. The full-tab flattening fixture according to claim 10, wherein, Along the first direction, the two sliders (50) are symmetrically arranged about the area between the two pressure plates (30), and the sliders (50) and the mounting base (10) are fixedly connected by locking members, or a combination of both.

12. The full-tab flattening fixture according to claim 10, wherein, There are two driving components, which are respectively driven and connected to the two sliders (50). Along the first direction, the two driving components are symmetrically arranged about the area between the two pressure plates (30).

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