Flattening device

Abstract

The utility model relates to the field of flattening of battery cell tabs, in particular to a flattening device. The device comprises a table part, pressing plates and a lifting mechanism, the middle area of the table part is of an open structure, the multiple pressing plates are arranged and located in the open structure, the heads of the pressing plates are provided with whole pressing parts extending towards the surfaces of the pressing plates, the surface of the table part is provided with multiple first positioning grooves corresponding to the whole pressing parts, and the output end of the lifting mechanism is connected with the pressing plates; the middle area of the table part is hollowed out, so that the multiple pressing plates arranged in the open structure can face all directions on the surface of the table part, the head of the table part is provided with the pressing part, and the pressing part can fall into the positioning groove in different directions under the action of the telescopic mechanism to flatten the tabs in the positioning groove; therefore, the tabs are pressed on the battery cells which are symmetrically arranged.

Description

Technical Field

[0001] This utility model relates to the field of flattening battery cell tabs, and more particularly to a flattening device. Background Technology

[0002] Currently, when loading battery cells, the tabs of the cells need to be flattened because the tabs may be warped. During the transfer process, the cells are pre-placed in a pusher tray. Whether the cells are placed into the tray or taken out of the tray, there is a risk that the tabs may be touched and deformed. Furthermore, the transfer is a process, not just a matter of taking them out of and putting them into the tray. Therefore, in the absence of appropriate protective measures, the tabs need to be flattened before being placed into the fixture to ensure the subsequent assembly work.

[0003] Traditional battery cell loading is done through single-station transfer. The purpose of using a single station is based on the fact that the clamps that hold the battery cells have clamping components that all face the same clamping direction. Therefore, current mechanisms for flattening the tabs are developed based on the design of clamping components facing the same direction.

[0004] With iterative optimization of the fixture, this jig has the following structure:

[0005] Each row of adjacent clamping components is symmetrical to each other; the traditional flipping mechanism has been redesigned to rearrange the positions of the battery cells so that the battery cells correspond to the clamping components on the new fixture.

[0006] However, as mentioned earlier, the tabs need to be flattened. After the cells are rearranged, traditional flattening devices can only flatten the tabs facing one direction, and cannot flatten the tabs facing the other direction. Utility Model Content

[0007] To solve the above problems, this utility model provides a flattening device that can simultaneously flatten symmetrically oriented tabs.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a flattening device, characterized in that it includes a platform, a pressure plate, and a lifting mechanism. The middle area of ​​the platform is an open structure, and multiple pressure plates are provided. The pressure plates are located within the open structure. The head of the pressure plate has a pressing part extending towards the surface of the pressure plate. The surface of the platform is provided with multiple first positioning grooves corresponding to the pressing parts. The output end of the lifting mechanism is connected to the pressure plate.

[0009] Furthermore, the pressing part and the pressure plate are integrally formed, and the pressing part and the pressure plate are connected to form an L shape. The bottom surface of the pressing part is the pressing surface of the pressure electrode tab.

[0010] Furthermore, the first positioning groove is equipped with an adsorption port.

[0011] Furthermore, it also includes a positioning mechanism and a transport mechanism for transferring the battery cell between various mechanisms. The positioning mechanism includes a positioning main board, a movable plate, a fixed plate, a sliding component, and a push cylinder. The push cylinder and the sliding component are mounted on the positioning main board, and the fixed plate is mounted on the positioning main board. The fixed plate has a second positioning groove. Multiple movable plates are provided and distributed on the fixed plate, connected to the movable end of the sliding component. Multiple push cylinders are provided, and their output ends are connected to the movable plates respectively. The movable plates have a frame structure, and the staggered overlap between the movable plates makes the enclosed area of ​​the movable plate have a partial frame of another movable plate. The side of this partial frame has a shape adapted to the battery cell.

[0012] Furthermore, the conveying mechanism includes a linear motion component, the output end of which is provided with a suction plate, and the suction plate is provided with a plurality of suction nozzles.

[0013] The beneficial effects of this utility model are:

[0014] By hollowing out the middle area of ​​the platform section, multiple pressure plates set in the open structure can face the surface of the platform section in various directions. The head of the platform section is also provided with a pressing part. Under the action of the telescopic mechanism, the pressing part can fall into the positioning groove in different directions and flatten the electrode tab in the positioning groove. Thus, the electrode tab is pressed on the symmetrically arranged battery cell. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a diagram showing the positional relationship between the platform, pressure plate, and lifting mechanism.

[0017] Figure 3 This is a 3D diagram of the positioning mechanism.

[0018] Figure 4 This is a diagram showing the usage status of the positioning mechanism. Detailed Implementation

[0019] Figure 1-4 As shown, a flattening device includes a platform 1, a pressure plate 2, and a lifting mechanism 3. The middle area of ​​the platform 1 is an open structure 4. Multiple pressure plates 2 are provided and are located within the open structure 4. The head of the pressure plate 2 has a pressing part 5 extending towards the surface of the pressure plate 2. The surface of the platform 1 is provided with multiple first positioning grooves 100 corresponding to the pressing parts 5. The output end of the lifting mechanism 3 is connected to the pressure plate 2.

[0020] Specifically, the lifting mechanism 3 is a lifting cylinder.

[0021] Furthermore, the pressing part 5 and the pressure plate 2 are integrally formed. After the pressing part 5 and the pressure plate 2 are connected, they form an L shape. The bottom surface of the pressing part 5 is the pressing surface of the electrode tab. The integral forming design makes the connection between the pressing part 5 and the pressure plate 2 more stable, and the L shape can better apply pressure to the electrode tab.

[0022] Furthermore, the first positioning groove 100 is provided with an adsorption port 200; the adsorption port 200 is connected to an external vacuum generator, and the negative pressure is used to fix the battery cell 8 in the first positioning groove 100 to prevent the battery cell 8 from shifting during the pressure adjustment process.

[0023] Furthermore, it also includes a positioning mechanism 6 and a transport mechanism 7 for transferring the battery cell 8 between various mechanisms. The positioning mechanism 6 includes a positioning main board 61, a movable plate 62, a fixed plate 63, a sliding assembly 64, and a push cylinder 65. The push cylinder 65 and the sliding assembly 64 are mounted on the positioning main board 61, and the fixed plate 63 is mounted on the positioning main board 61. The fixed plate 63 has a second positioning groove. Multiple movable plates 62 are provided and distributed on the fixed plate 63, connected to the movable end of the sliding assembly 64. Multiple push cylinders 65 are provided, and their output ends are respectively connected to the movable plates 62. The movable plates 62 have a frame structure, and the staggered overlap between the movable plates 62 results in a partial border 62-a of another movable plate 62 within the enclosed area of ​​the movable plate 62. The side of 62-a has a shape adapted to the battery cell 8; the positioning mechanism 6 recalibrates the position of the battery cell 8, and the subsequent conveying mechanism 7 places the calibrated battery cell 8 into the second positioning slot; the combination of the movable plates 62 is to optimize the space of the entire positioning mechanism 6. In this specific embodiment, there are two movable plates 62. The first movable plate 62 and the second movable plate 62 are staggered, so that part of the frame 62-a of the first movable plate 62 is located in the enclosed area of ​​the second movable plate 62. Similarly, part of the frame 62-a of the second movable plate 62 is located in the enclosed area of ​​the first movable plate 62. Both are moved closer to each other by the push cylinder 65, and the battery cell 8 is moved by the aforementioned part of the frame 62-a, thereby adjusting the position of the battery cell 8.

[0024] Furthermore, the conveying mechanism 7 includes a linear moving component, the output end of which is provided with a suction plate 71, and the suction plate 71 is provided with a plurality of suction nozzles 72; the linear moving component is existing technology, mainly used in conjunction with the suction nozzles 72 to transfer the battery cell 8 from the positioning mechanism 6 to the first positioning groove 100.

[0025] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A flattening device, characterized in that The device comprises a table part, a pressing plate and a lifting mechanism, the middle area of the table part is of an open structure, the pressing plate is provided with a plurality of pressing plates, the pressing plates are located in the open structure, the head of the pressing plate has a whole pressing part extending to the surface of the pressing plate, the surface of the table part is provided with a plurality of first positioning grooves corresponding to the whole pressing part, and the output end of the lifting mechanism is connected with the pressing plate.

2. A flattening device according to claim 1, characterized in that The whole pressing part and the pressing plate are integrally formed, the whole pressing part and the pressing plate are connected in an L shape, and the surface of the bottom of the whole pressing part is a whole pressing surface for the tab.

3. A flattening device according to claim 1, wherein The first positioning groove is provided with a suction port.

4. A flattening device according to claim 1, wherein The device further comprises a positioning mechanism and a carrying mechanism for transferring the battery cell between the mechanisms, the positioning mechanism comprises a positioning main plate, a movable plate, a fixed plate, a sliding assembly and a pushing cylinder, the pushing cylinder and the sliding assembly are arranged on the positioning main plate, the fixed plate is arranged on the positioning main plate, the fixed plate is provided with a second positioning groove, the movable plate is provided with a plurality of movable plates, the movable plates are distributed on the fixed plate and connected with the movable end of the sliding assembly, the pushing cylinder is provided with a plurality of pushing cylinders, the output ends of the pushing cylinders are respectively connected with the movable plates, wherein the movable plate is a frame structure, the staggered superposition between the movable plates is such that the enclosed area of the movable plate has a part of the frame of another movable plate, and the side surface of the part of the frame has a shape suitable for the battery cell.

5. A flattening device according to claim 4, wherein The carrying mechanism comprises a linear moving assembly, the output end of the linear moving assembly is provided with a suction nozzle disc, and the suction nozzle disc is provided with a plurality of suction nozzles.

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