Positioning and cutting device

Abstract

The embodiment of the application provides a positioning cutting device. The positioning cutting device comprises a positioning and pressing mechanism, a cutting mechanism and a bottom plate. The bottom plate is used for carrying the battery cell to ensure the stability of the battery cell in the device. The positioning and pressing mechanism is movably connected to the bottom plate, so that the positioning and pressing mechanism can move relative to the bottom plate, and the positioning and pressing mechanism can fix the battery cell according to the position of the battery cell, thereby ensuring the stability of the battery cell when the battery cell is cut. The cutting mechanism is movably connected to the bottom plate, so that the cutting mechanism can move relative to the bottom plate, and the cutting mechanism can adjust the position of itself according to the cutting position of the battery cell, thereby improving the flexibility of the positioning cutting device for cutting the tab and realizing the accurate cutting of the tab of the battery cell.

Description

Technical Field

[0001] This application relates to a positioning and cutting device, and more particularly to a device for cutting tabs of soft-pack lithium batteries. Background Technology

[0002] During the manufacturing process of pouch lithium batteries, the positive and negative tabs in the cell need to be cut to a fixed shape to facilitate subsequent bending. However, current positive and negative tab cutting machines have difficulty accurately positioning the cell on their worktables, and the fixed cutting structure makes operation inconvenient, affecting battery performance. Utility Model Content

[0003] This application provides a positioning and cutting device. The device uses a positioning and clamping mechanism to press one side of the battery cell, enabling precise positioning. Furthermore, by using positioning strips on the base plate for pre-pressing, it ensures that all four sides of the battery cell are pressed, guaranteeing stability during cutting. The cutting mechanism's blade and blade holder are adjustable, allowing for flexible use. Ultimately, this allows for precise positioning and cutting of the battery cell, and the cutting device is quick and convenient to use.

[0004] This application provides a positioning and cutting device for cutting the tab adhesive in a battery cell. The positioning and cutting device includes a positioning and pressing mechanism, a cutting mechanism, and a base plate. The base plate is used to support the battery cell. The positioning and pressing mechanism is movably connected to the base plate and is used to fix the battery cell. The cutting mechanism is movably connected to the base plate and is used to cut the tab adhesive of the battery cell.

[0005] This application improves the stability of the battery cells by initially fixing them on a base plate placed on the positioning and cutting device. Furthermore, by incorporating a positioning and clamping device and a cutting device movably connected to the base plate, both devices can approach the battery cells. The positioning and clamping mechanism can adapt to battery cells of different sizes and clamp them securely. The cutting device can adjust the cutting position according to the size of the battery cell's tabs and cut the tabs accordingly. This simplifies the operation of the device, increases the flexibility of the positioning and cutting device in cutting the tabs, and achieves precise cutting of the battery cell's tabs.

[0006] In one possible implementation, the positioning and clamping mechanism includes a fixing device and a positioning device. The fixing device is movably connected to the base plate along a first direction, and the positioning device is used to fix the position of the fixing device. The first direction is perpendicular to the thickness direction of the base plate. By allowing the fixing device to be movably connected to the base plate along the first direction, the fixing device can clamp and fix the battery cell according to its position and size, ensuring the stability of the battery cell during cutting. Furthermore, by providing the positioning device to fix the position of the fixing device, it ensures that the fixing device maintains its fixed position after clamping the battery cell, preventing the battery cell from shifting due to relative movement of the fixing device.

[0007] In one possible implementation, the fixing device is provided with at least one positioning arm on each side of the battery cell, and at least one positioning arm on each side is used to move along a first direction, and the positioning arm is used to fix the battery cell. By providing positioning arms on both sides of the fixing device to fix both sides of the battery cell, the battery cell is made more stable within the positioning and cutting device, which helps to improve the cutting accuracy of the device.

[0008] In one possible implementation, the fixing device includes an upper mounting plate and a positioning block. The upper mounting plate is connected to the positioning block along a first direction, and the upper mounting plate is used to drive the positioning block to move along the first direction. By using the upper mounting plate to drive the positioning block to move along the first direction, the positioning block can be stably pressed against the edge of the battery cell, ensuring stable fixing of the battery cell and improving the accuracy of subsequent battery cell cutting.

[0009] In one possible implementation, the positioning block includes a first elastic element located between the upper mounting plate and the positioning block along a first direction. One end of the first elastic element along the first direction is connected to the positioning block, and the other end is connected to the upper mounting plate. By connecting both ends of the first elastic element along the first direction to the positioning block and the mounting plate respectively, the upper mounting plate can transmit power to the first elastic element, which then transmits the power to the positioning block, causing the positioning block to move along the first direction until it matches the battery cell. This achieves the positioning function of the positioning block for the battery cell, improving the stability of the battery cell within the positioning and cutting device. Furthermore, the first elastic element provides a buffer for the sliding of the positioning block, preventing it from sliding too quickly and colliding with the battery cell, thus avoiding damage to the battery cell.

[0010] In one possible implementation, the fixing device includes a slider and a slide rail. The slider is slidably connected to the slide rail along a first direction, the slide rail is fixedly connected to the upper mounting plate, and the slider is fixedly connected to the positioning block. The slider is used to slide along the slide rail with the positioning block. By setting the slider and slide rail between the upper mounting plate and the positioning block, a stable track is provided for the sliding of the upper mounting plate, reducing resistance during movement and thus improving the sliding efficiency between the upper mounting plate and the positioning block.

[0011] In one possible implementation, the positioning device includes a positioning plate and a positioning post. The positioning plate is fixedly connected to the base plate and extends along a first direction. A positioning hole is provided through the positioning plate along the thickness direction of the base plate. A corresponding first mounting hole is provided on the fixing device. The positioning post passes through the first mounting hole and extends into the positioning hole. By providing the positioning post to pass through the first mounting hole and extend into the positioning hole, the positioning post can move along the first direction with the fixing device until it reaches a position where the second mounting hole and the pressing hole are opposite. At this point, the positioning post can spring into the positioning hole, thus fixing the position of the fixing device and ensuring stable fixation of the battery cell.

[0012] In one possible implementation, the positioning and clamping mechanism includes a second elastic element. Along the first direction, one end of the second elastic element is fixed to the base plate, and the other end is fixed to the fixing device. The second elastic element is used to drive the fixing device to reset along the first direction. By fixing both ends of the second elastic element along the first direction to the fixing device and the base plate, the second elastic element can drive the fixing device to reset along the first direction, facilitating the subsequent placement of other battery cells.

[0013] In one possible implementation, the cutting mechanism includes a mounting plate and a cutting device. The mounting plate is movably connected to a base plate along a second direction, and the cutting device is fixedly connected to the mounting plate along the second direction. The mounting plate is used to drive the cutting device to move along the second direction, which is perpendicular to the thickness direction of the base plate. By movably connecting the mounting plate to the base plate along the second direction and fixing the cutting device to the mounting plate, the mounting plate can drive the cutting device to move along the second direction, thereby causing the cutting device to move closer to the battery cell tab, thus achieving the cutting of the battery cell tab.

[0014] In one possible implementation, the cutting device is movably connected to the mounting plate along a direction intersecting the second direction. By movably connecting the cutting device to the mounting plate along the direction intersecting the second direction, the cutting device can be adjusted relative to the mounting plate along the direction intersecting the second direction, thereby adjusting the cutting device to the cutting position of the battery cell tab and improving the cutting accuracy of the cutting device in cutting the battery cell tab.

[0015] In one possible implementation, along the second direction, the mounting plate has a second mounting hole penetrating through it, and the cutting device has a third mounting hole. The second and third mounting holes are arranged opposite to each other. A fixing bolt on the mounting plate passes through the second mounting hole and extends into the third mounting hole. The inner diameter of the second mounting hole along the direction intersecting the second direction is larger than the diameter of the fixing bolt, and the inner diameter of the third mounting hole is smaller than or equal to the diameter of the fixing bolt. By making the inner diameter of the third mounting hole smaller than or equal to the diameter of the fixing bolt, the cutting device can be fixedly connected to the mounting plate, thereby improving the relative stability between the cutting device and the mounting plate. Furthermore, by making the inner diameter of the second mounting hole along the direction intersecting the second direction larger than the diameter of the fixing bolt, the fixing bolt can move within the second mounting hole along the direction intersecting the second direction, thereby driving the cutting device fixed to the fixing bolt to move along this direction. This enables adjustment of the cutting device in this direction, improving the flexibility of the cutting device and achieving precise cutting of the chip tabs.

[0016] In one possible implementation, the mounting plate is equipped with an adjusting bolt connected to the cutting device along a direction intersecting the second direction. The adjusting bolt drives the cutting device to move along this direction. By connecting the adjusting bolt to the cutting device, the device can be moved along the second direction, allowing for flexible adjustment based on the actual cutting position of the battery cell, thus improving the accuracy of the cutting device in cutting the battery cell.

[0017] In one possible implementation, the cutting mechanism further includes a limiting base, which is fixedly connected to the base plate and located on the side of the mounting plate away from the cutting device. The cutting mechanism is provided with a third elastic member along the second direction. One end of the third elastic member is fixed to the limiting base, and the other end is fixed to the mounting plate. The third elastic member is used to drive the mounting plate to reset along the second direction. By fixing both ends of the third elastic member between the limiting base and the mounting plate along the direction intersecting the second direction, the third elastic member can drive the mounting plate and the cutting device to reset along the direction intersecting the second direction, facilitating the subsequent cutting of other battery cells. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a positioning and cutting device provided in an embodiment of this application; Figure 2 This is a schematic diagram of a base plate provided in an embodiment of this application; Figure 3 This is a schematic diagram of a positioning and clamping mechanism provided in an embodiment of this application; Figure 4 This is a schematic diagram of a positioning and clamping mechanism provided in an embodiment of this application; Figure 5 This is a cross-sectional view of a positioning and clamping mechanism with a first elastic element provided in an embodiment of this application; Figure 6 This is a partially enlarged view of a positioning and clamping mechanism with a first elastic element provided in an embodiment of this application; Figure 7 This is a schematic diagram of a structure of the first slider and the first slide rail provided in an embodiment of this application; Figure 8 This is a schematic diagram of a structure in which the upper mounting plate is connected to the first slide rail according to an embodiment of this application; Figure 9 This is a schematic diagram showing the connection between the positioning block and the first slider provided in an embodiment of this application; Figure 10 This is a schematic diagram of a positioning device with a positioning plate and a positioning post provided in an embodiment of this application; Figure 11 This is a schematic diagram of a first mounting hole and a positioning hole provided in an embodiment of this application; Figure 12 This is a schematic diagram of a positioning and clamping mechanism with a positioning plate and a positioning post provided in an embodiment of this application; Figure 13 This is a schematic diagram of a positioning and cutting device with a second elastic element provided in an embodiment of this application; Figure 14 This is a schematic diagram of a cutting mechanism provided in an embodiment of this application; Figure 15 This is another structural schematic diagram of the cutting mechanism provided in this application; Figure 16 This is a schematic diagram of a cutting mechanism provided in an embodiment of this application; Figure 17 This is a schematic diagram of a cutting mechanism provided in an embodiment of this application; Figure 18 This is a schematic diagram of a cutting device provided in an embodiment of this application; Figure 19 This is a schematic diagram of a cutting device provided in an embodiment of this application; Figure 20 This is a schematic diagram of a cutting mechanism for the third elastic element provided in an embodiment of this application.

[0019] Figure Labels 1000 - Positioning and cutting device; 2000 - Battery cell; 100 - Positioning and clamping mechanism; 200 - Cutting mechanism; 300 - Base plate; 110-Fixing device; 120-Positioning device; 130-Second elastic element; 210-Mounting plate; 220-Cutting device; 230-Limiting base; 240-Third elastic element; 310-Placement groove; 320-Positioning strip; 11-Positioning arm; 12-Upper mounting plate; 13-Positioning block; 14-First slider; 15-First slide rail; 16-Positioning plate; 17-Positioning post; 18-Lower mounting plate; 121-First mounting hole; 122-Baffle; 131-First elastic element; 132-Protrusion; 133-Slot; 161-Positioning hole; 162-Reset hole; 171-Second slider; 172-Second slide rail; 211-Third slider; 212-Third slide rail; 213-Second mounting hole; 214-Fixing bolt; 215-Fixing plate; 216-Adjusting bolt; 217-Fifth mounting hole; 221-Third mounting hole; 222-Fourth mounting hole; 223-Tool holder; 224-Blade; 2221-First hole; 2222-Second hole; 2241-Fixing hole. Detailed Implementation

[0020] The embodiments of this application are described below with reference to the accompanying drawings.

[0021] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0022] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0025] In the description of this application, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] It should be understood that in this application, "connection" and "connected" can both refer to a mechanical connection or a physical connection. For example, "connected to B" or "connected to B" can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.

[0027] Soft-pack batteries are lithium-ion batteries that use an aluminum-plastic composite film as the outer casing material. Their core feature is the replacement of the metal casing of traditional cylindrical or square batteries with a flexible package. They offer advantages such as flexible design and lightweight construction.

[0028] The soft-pack battery has a tab extending from the inside of the battery on one side, which is used to connect the internal circuit of the cell to the external circuit. It is located at the edge of the cell and is connected to the aluminum-plastic film of the soft-pack battery by tab adhesive. Then, through a hot pressing process, it is fused with the aluminum-plastic film to form a sealed space and complete the encapsulation of the soft-pack battery.

[0029] During the packaging process of pouch batteries, the positive and negative tabs in the cell need to be cut to a fixed shape to facilitate subsequent bending and setting. However, the current worktable of the positive and negative tab cutting machine is difficult to accurately position the cell. If the tabs are too long, they will be squeezed and folded during packaging, resulting in an excessively thick adhesive layer that occupies space in the pouch battery; if they are too short, they cannot cover the bonding surface between the tab metal strip and the aluminum-plastic film, leading to the risk of leakage. Furthermore, the fixed cutting structure makes operation inconvenient and affects the performance of the pouch battery.

[0030] To address the aforementioned issues, this application provides a positioning and cutting device for cutting the tabs of a battery cell. By incorporating a positioning and clamping mechanism and a cutting mechanism on the positioning and cutting device, both mechanisms can move relative to the base plate of the device. Specifically, the battery cell to be cut is placed on the base plate, and the positioning and clamping mechanism moves towards the cell, clamping and fixing it in place, thus achieving precise positioning of the cell. The cutting mechanism can then adjust its position according to the location of the battery cell's tabs and move closer to them, improving the flexibility of the cutting mechanism and achieving precise cutting of the battery cell's tabs. This results in the tabs occupying less space within the pouch battery while maintaining the pouch battery's performance.

[0031] Figure 1 This is a schematic diagram of a positioning and cutting device 1000 provided in an embodiment of this application, combined with... Figure 1 As shown, the positioning and cutting device 1000 includes a base plate 300. The base plate 300 is used to support the battery cell 2000 and provide stable support for the battery cell 2000, so as to ensure that the device can smoothly position and cut the battery cell 2000, which helps to improve the stability of the operation of the positioning and cutting device 1000.

[0032] In one embodiment, Figure 2 This is a schematic diagram of a structure of the base plate 300 provided in an embodiment of this application, combined with... Figure 1 and Figure 2 As shown, a placement groove 310 is provided on the base plate 300, and at least one positioning strip 320 is provided at the edge of the placement groove 310. The positioning strip 320 protrudes from the base plate 300 and can press the battery cell 2000 located in the placement groove 310 to initially fix the position of the battery cell 2000 in the placement groove 310 and improve the stability of the battery cell 2000 in the placement groove 310. In one embodiment, the positive and negative tabs of the battery cell 2000 are located on both sides of the battery cell 2000, and two positioning strips 320 are provided at the edges of the positive and negative tabs of the battery cell 2000, respectively, and the two positioning strips 320 are respectively arranged opposite to each other on both sides of the tabs to press the positive and negative tabs together to improve the stability of the tabs in the placement groove 310. Understandably, the positioning strip 320 needs to avoid the cutting position of the electrode tab in order to ensure that the electrode tab can be successfully cut by the cutting mechanism 200.

[0033] Continue to combine Figure 1 and Figure 2 As shown, the positioning and cutting device 1000 also includes a positioning and clamping mechanism 100 and a cutting mechanism 200. The positioning and clamping mechanism 100 is used to fix the battery cell 2000, achieving precise positioning of the battery cell 2000. Specifically, the positioning and clamping mechanism 100 is movably connected to the base plate 300, allowing it to move relative to the base plate 300. When the battery cell 2000 is placed in the placement slot 310, the positioning and clamping mechanism 100 can move towards the battery cell 2000 and clamp the battery cell 2000, thereby achieving precise positioning of the battery cell 2000. Simultaneously, after the positioning and cutting device 1000 completes the cutting of the battery cell 2000, the positioning and clamping mechanism 100 can also move away from the battery cell 2000 to facilitate the removal of the battery cell 2000 within the device.

[0034] The cutting mechanism 200 is used to cut the tabs of the battery cell 2000 to facilitate subsequent bending. Specifically, the cutting mechanism 200 is movably connected to the base plate 300, allowing it to move relative to the base plate 300. After the battery cell 2000 is fixed within the positioning and cutting device 1000 by the positioning and clamping mechanism 100, the cutting mechanism 200 moves towards the tabs and can adjust its lateral direction according to the position of the battery cell 2000's tabs, improving the flexibility of the cutting mechanism 200 and achieving precise cutting of the battery cell 2000's tabs.

[0035] This application provides a positioning and cutting device 1000, combined with... Figure 1 and Figure 2 As shown, by setting a base plate 300 on the positioning and cutting device 1000 for placing the battery cell 2000, the battery cell 2000 is initially fixed, improving the stability of the battery cell 2000 on the device. Furthermore, by setting a positioning and clamping device and a cutting mechanism 200 that can be movably connected to the base plate 300, both the positioning and clamping device and the cutting mechanism 200 can approach the battery cell 2000. The positioning and clamping mechanism 100 can adapt to battery cells 2000 of different sizes and clamp and fix the battery cell 2000. The cutting mechanism 200 can adjust the cutting position according to the size and position of the battery cell 2000's tabs and cut the tabs of the battery cell 2000. This simplifies the operation of the device and improves the flexibility of the positioning and cutting device 1000 in cutting the tabs, achieving precise cutting of the battery cell 2000's tabs.

[0036] Figure 3 This is a schematic diagram of a positioning and clamping mechanism 100 provided in an embodiment of this application, combined with... Figure 1 and Figure 3 As shown, in one possible implementation, the positioning and clamping mechanism 100 includes a fixing device 110, which is movably connected to the base plate 300 along a first direction, so that the fixing device 110 can move relative to the base plate 300 along the first direction, allowing the fixing device 110 to contact the battery cell 2000, thereby fixing the battery cell 2000 located in the placement slot 310. It can be understood that the first direction is perpendicular to the thickness direction of the base plate 300, i.e. Figure 3 The arrows indicate the direction. It can be understood that the fixing device 110 can be located on one side of the placement slot 310 along the first direction, or on both sides of the placement slot 310 along the first direction, so as to ensure that when the fixing device 110 moves along the first direction, it can match the battery cell 2000 located in the placement slot 310.

[0037] Subsequently, to ensure the fixed position of the fixing device 110 and prevent the position of the battery cell 2000 from shifting due to loosening of the fixing device 110, thus reducing the accuracy of the cutting position of the cutting device 220 on the battery cell 2000, the positioning and clamping mechanism 100 of this application also includes a positioning device 120. The positioning device 120 is used to fix the position of the fixing device 110 so that the fixing device 110 can remain relatively fixed with the base plate 300, thereby ensuring that the battery cell 2000 can remain stable within the positioning and cutting device 1000 before cutting, which is beneficial to improving the accuracy of the subsequent cutting mechanism 200 in cutting the tabs.

[0038] In one embodiment, a portion of the positioning device 120 is fixedly connected to the fixing device 110, so that when the fixing device 110 moves, the positioning device 120 moves with the fixing device 110. Another portion of the positioning device 120 is connected to the base plate 300. When the fixing device 110 moves to press against the battery cell 2000, the portion of the positioning device 120 fixedly connected to the fixing device 110 can match the other portion of the positioning device 120 connected to the base plate 300, allowing the portion of the positioning device 120 connected to the fixing device 110 to be relatively fixed to the base plate 300, thereby fixing the fixing device 110 to the base plate 300 and thus fixing the position of the fixing device 110.

[0039] In one possible implementation, combined with Figure 1 and Figure 3 As shown, the fixing device 110 includes a positioning arm 11, which is movably connected to the base plate 300 along a first direction. The positioning arm 11 is used to move along the first direction so that it can match the battery cell 2000 placed in the placement slot 310, thereby fixing the position of the battery cell 2000 and improving the stability of the battery cell 2000 in the placement slot 310. On both sides of the battery cell 2000, the fixing device 110 is provided with at least one positioning arm 11, and each positioning arm 11 can move along the first direction and match the battery cell 2000. This ensures that the stress distribution between the contact end of the positioning arm 11 and the battery cell 2000 is uniform, preventing the positioning arm 11 from being fixed only to one side of the battery cell 2000, which would cause the other side of the battery cell 2000 to shift, thus ensuring the stability of the battery cell 2000 in the placement slot 310.

[0040] In one embodiment, there are two positioning arms 11, located on opposite sides of the battery cell 2000 along the length of the fixing device 110. The distance between each positioning arm 11 and the edge of the battery cell 2000 adjacent to it is equal to ensure uniform force distribution on the battery cell 2000, further improving the stability of the battery cell 2000 within the positioning and cutting device 1000, and thus improving the accuracy of the positioning and cutting device 1000 in cutting the battery cell 2000 tabs. It is understood that the number of positioning arms 11 can be set according to actual needs, so that after the positioning arms 11 match the battery cell 2000, the battery cell 2000 can be stably positioned within the placement slot 310, thereby improving the accuracy of the positioning and cutting device 1000 in cutting the battery cell 2000 tabs. It is understood that the length direction of the fixing device 110 is perpendicular to the thickness direction of the base plate 300, and this length direction can be perpendicular to the first direction or set at a certain angle to the first direction.

[0041] Figure 4 This is a schematic diagram of a positioning and clamping mechanism 100 provided in an embodiment of this application, combined with... Figure 1 , Figure 3 and Figure 4 As shown, in one possible implementation, the fixing device 110 includes an upper mounting plate 12 and a positioning block 13. The upper mounting plate 12 is connected to the positioning block 13 along a first direction so that the upper mounting plate 12 can drive the positioning block 13 to move along the first direction, thereby enabling the positioning block 13 to match the battery cell 2000 in the placement slot 310 and fix the battery cell 2000.

[0042] In one embodiment, at least a portion of the positioning block 13 is located on the lower side of the upper mounting plate 12. The lower side of the upper mounting plate 12 is also provided with a baffle 122. The baffle 122 is fixedly connected to the upper mounting plate 12 along the thickness direction of the bottom plate 300. The positioning block 13 and the baffle 122 are arranged side by side along the first direction. The baffle 122 is used to connect with the positioning block 13 and to push the positioning block 13 to move along the first direction.

[0043] In one embodiment, along a first direction, the positioning block 13 has a protrusion 132 at one end near the battery cell 2000. The protrusion 132 extends along the thickness direction of the base plate 300, and a clamp is provided in the direction away from the thickness direction of the base plate 300. The first clamping plate and the second clamping plate of the clamp are arranged opposite to each other along the thickness direction of the base plate 300. When the battery cell 2000 is located in the placement slot 310, the upper mounting plate 12 moves along the first direction, so that the protrusion 132 approaches the battery cell 2000, thereby causing the first clamping plate and the second clamping plate of the clamp to contact the two surfaces of the battery cell 2000 and clamp the battery cell 2000, thus fixing the battery cell 2000.

[0044] Figure 5This is a cross-sectional view of a positioning and clamping mechanism 100 with a first elastic element 131 provided in an embodiment of this application. Figure 6 This is a partially enlarged view of a positioning and clamping mechanism 100 with a first elastic element 131 provided in an embodiment of this application, combined with... Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, in one possible implementation, the positioning block 13 includes a first elastic member 131, which is located between the positioning block 13 and the upper mounting plate 12. One end of the first elastic member 131 along the first direction is connected to the positioning block 13, and the other end of the first elastic member 131 along the first direction is connected to the baffle 122. That is, the positioning block 13 is elastically connected to the baffle 122 of the upper mounting plate 12, so that the upper mounting plate 12 can drive the positioning block 13 to move along the first direction through the first elastic member 131, thereby fixing the battery cell 2000 by the positioning block 13. Meanwhile, the first elastic element 131 can buffer the movement of the positioning block 13. When the upper mounting plate 12 drives the first elastic element 131 to move along the first direction through the baffle 122, the first elastic element 131 pushes the positioning block 13 to move in the first direction through its own elastic deformation, so that the positioning block 13 comes into contact with the battery cell 2000. This avoids the upper mounting plate 12 directly driving the positioning block 13 to move, and the positioning block 13 being subjected to excessive force, which would cause the positioning block 13 to come into contact with the battery cell 2000 and damage the battery cell 2000.

[0045] In one embodiment, the positioning block 13 includes a slot extending along a first direction. The slot opens along the first direction near the side of the upper mounting plate 12, allowing at least a portion of the first elastic member 131 to extend into the slot. Specifically, one end of the first elastic member 131 along the first direction extends into the slot 133 and connects to the bottom wall of the slot 133, while the other end connects to the baffle 122 of the upper mounting plate 12, so that the first elastic member 131 can push the positioning block 13 to move as the upper mounting plate 12 moves. It is understood that the first elastic member 131 can be a spring. In one embodiment, the number of first elastic members 131 can be set according to actual needs, that is, each positioning block 13 has at least one first elastic member 131 to ensure the stability of the positioning block 13 when matched with the battery cell 2000.

[0046] Figure 7 This is a schematic diagram of a structure of the first slider 14 and the first slide rail 15 provided in an embodiment of this application. Figure 8 This is a schematic diagram of a structure in which the upper mounting plate 12 is connected to the first slide rail 15, according to an embodiment of this application. Figure 9 This is a schematic diagram of the connection between the positioning block 13 and the first slider 14 provided in an embodiment of this application. Figure 1 , Figure 3 , Figure 7 , Figure 8 and Figure 9 As shown, in one possible implementation, the fixing device 110 includes a first slider 14 and a first slide rail 15, both located between the upper mounting plate 12 and the positioning block 13. Along the thickness direction of the base plate 300, the first slider 14 is fixedly connected to the positioning block 13, and the first slide rail 15 is fixedly connected to the upper mounting plate 12. The first slider 14 is also slidably connected to the first slide rail 15 along a first direction, allowing the positioning block 13 to slide relative to the upper mounting plate 12 via the first slide rail 15 and the first slider 14 along the first direction. This reduces the frictional resistance between the upper mounting plate 12 and the positioning block 13, thereby improving the efficiency of the positioning block 13's movement.

[0047] Specifically, the upper mounting plate 12 slides along a first direction to drive the first slide rail 15 to move along the first direction. The first slider 14 moves in the opposite direction relative to the first slide rail 15, so that the first slide rail 15 has a sufficient distance from the slider in the first direction. At this time, the upper mounting plate 12 drives the positioning block 13 to move along the first direction through the first elastic element 131, and the positioning block 13 drives the slider to slide along the first slide rail 15. Through the arrangement of the first slider 14 and the first slide rail 15, the positioning block 13 can slide relative to the upper mounting plate 12 in the first direction, reducing the frictional resistance between the upper mounting plate 12 and the positioning block 13, improving the power transmission efficiency of the upper mounting plate 12, and thus improving the movement efficiency of the positioning block 13. It can be understood that the first direction can be the direction in which the fixing device 110 approaches the battery cell 2000, or it can be the reset direction in which the fixing device 110 moves away from the battery cell 2000. When the first direction is the direction in which the fixing device 110 approaches the battery cell 2000, the opposite direction of the first direction is the reset direction in which the fixing device 110 moves away from the battery cell 2000; and vice versa.

[0048] In one embodiment, along the first direction, the length of the first slider 14 is less than the length of the first slide rail 15, so that the first slider 14 has a certain sliding space on the first slide rail 15, ensuring the sliding connection between the positioning block 13 and the upper mounting plate 12.

[0049] Figure 10 This is a schematic diagram of a positioning device 120 with a positioning plate 16 and a positioning post 17 provided in an embodiment of this application. Figure 11 This is a schematic diagram of the first mounting hole 121 and the positioning hole 161 provided in an embodiment of this application. Figure 12 This is a schematic diagram of a positioning and clamping mechanism 100 with a positioning plate 16 and a positioning post 17 provided in an embodiment of this application, in conjunction with... Figure 1 , Figure 3 , Figure 10 , Figure 11 and Figure 12As shown, in one possible implementation, the positioning device 120 includes a positioning plate 16 and a positioning post 17. The positioning plate 16 is fixedly connected to the base plate 300 and extends along a first direction so that the positioning post 17 can move relative to the positioning plate 16 along the first direction. Along the thickness direction of the base plate 300, the positioning plate 16 has a positioning hole 161 penetrating through it. The upper mounting plate 12 on the fixing device 110 has a corresponding first mounting hole 121, which penetrates the upper mounting plate 12 along the thickness direction of the base plate 300. The positioning post 17 passes through the first mounting hole 121 and extends into the positioning hole 161. The positioning post 17 and the upper mounting plate 12 are fixedly connected by matching with the first mounting hole 121, and the hole wall of the positioning hole 161 can restrict the movement of the positioning post 17, thereby fixing the position of the fixing device 110.

[0050] Specifically, when the upper mounting plate 12 moves along the first direction, it can drive the positioning post 17 to move along the first direction on the positioning plate 16. When the positioning block 13 moves to a position that matches the battery cell 2000, at least a portion of the positioning post 17 springs into the positioning hole 161, so that the inner wall of the positioning hole 161 can restrict the positioning post 17 from continuing to move, thereby ensuring the fixation of the fixing device 110 and thus ensuring the stable fixation of the battery cell 2000 by the fixing device 110. After the positioning post 17 springs into the positioning hole 161, the nut on the upper mounting plate 12 can press the upper mounting plate 12, and the upper mounting plate 12 then presses the positioning block 13 below it along the thickness direction of the base plate 300, thereby enabling the positioning block 13 to press the battery cell 2000 and improve the stability of the battery cell 2000 in the placement slot 310. It is understandable that the positioning post 17 can undergo elastic deformation along the thickness direction of the base plate 300 so that when the positioning post 17 moves to the positioning hole 161, the positioning post 17 can spring into the positioning hole 161.

[0051] In one embodiment, combined with Figure 1 , Figure 10 and Figure 12 As shown, the positioning plate 16 is also provided with a reset hole 162 that penetrates through itself along the thickness direction of the base plate 300. The reset hole 162 and the positioning hole 161 are arranged at intervals along the first direction. After the battery cell 2000 is cut by the cutting mechanism 200, the positioning post 17 is pulled upward, and the fixing device 110 moves in a direction away from the battery cell 2000, so as to drive the positioning post 17 to move relative to the positioning plate 16 in that direction until the positioning post 17 moves into the reset hole 162, so as to complete the release of the fixing device 110 from the battery cell 2000, and the cut battery cell 2000 can be taken out. At the same time, the setting of the reset hole 162 can also ensure the stability of the positioning and clamping mechanism 100 after reset.

[0052] Figure 13This is a schematic diagram of a positioning and cutting device 1000 with a second elastic element 130 provided in an embodiment of this application, combined with... Figure 1 and Figure 13 As shown, in one possible implementation, the positioning and clamping mechanism 100 is provided with a second elastic element 130. Along the first direction, one end of the second elastic element 130 is fixed to the base plate 300, and the other end is fixed to the fixing device 110. The second elastic element 130 can elastically deform along the first direction, allowing it to drive the fixing device 110 to reset along the first direction, facilitating the subsequent placement of other battery cells 2000. Specifically, when the fixing device 110 approaches the battery cell 2000 along the first direction, the second elastic element 130 is stretched; after the battery cell 2000 is cut, the second elastic element 130 rebounds, thereby pulling the fixing device 110 back, achieving the reset of the fixing device 110.

[0053] In one embodiment, one end of the second elastic member 130 is passed through the second elastic member 130 by a screw and extends into the base plate 300, and the other end of the second elastic member 130 is passed through the second elastic member 130 by a screw and extends into the upper mounting plate 12, thereby fixing one end of the second elastic member 130.

[0054] In one embodiment, to improve the reset efficiency of the second elastic element 130 and the moving efficiency of the fixing device 110 along the first direction, at least one second slider 171 and a second slide rail 172 are respectively provided on both sides of the positioning post 17. The second slide rail 172 is fixedly connected to the lower mounting plate 18 of the fixing device 110, and the second slider 171 is fixedly connected to the upper mounting plate 12. The second slider 171 can slide relative to the second slide rail 172 and drive the upper mounting plate 12 to move. When the upper mounting plate 12 approaches the battery cell 2000 along the first direction, the upper mounting plate 12 can slide relative to the lower mounting plate 18 along the first direction; when the battery cell 2000 is cut, the second elastic element 130 drives the upper mounting plate 12 to slide relative to the lower mounting plate 18 in a direction away from the battery cell 2000. The second slider 171 and the second slide rail 172 provide a stable track for the sliding of the upper mounting plate 12, reducing the resistance during the movement process. This reduces the energy loss of the second elastic element 130 when it pulls the upper mounting plate 12 to reset, and enables it to convert elastic potential energy into kinetic energy of the upper mounting plate 12 more efficiently, thereby improving the reset efficiency of the second elastic element 130.

[0055] This application achieves the fixation of the fixing device 110 by matching the positioning post 17 and the second elastic member 130. Specifically, the fixing device 110 moves towards the battery cell 2000 along the first direction until the positioning post 17 springs into the positioning hole 161, thereby fixing the fixing device 110 and improving the stability of the battery cell 2000 within the device. It is understood that at this time, the second elastic member 130 is stretched as the fixing device 110 moves. After the battery cell 2000 is cut, the positioning post 17 is lifted along the thickness direction of the base plate 300, allowing the second elastic member 130 to pull the fixing device 110 back in a direction away from the battery cell 2000 until the positioning post 17 extends into the reset hole 162, thus resetting the fixing device 110 and facilitating the subsequent placement of other battery cells 2000.

[0056] Figure 14 This is a schematic diagram of a cutting mechanism 200 provided in an embodiment of this application. Figure 15 This is another structural schematic diagram of the cutting mechanism 200 provided in this application, combined with... Figure 1 , Figure 14 and Figure 15 As shown, in one possible implementation, the cutting mechanism 200 includes a mounting plate 210 and a cutting device 220. The mounting plate 210 is movably connected to the base plate 300 along a second direction, allowing the mounting plate 210 to move relative to the base plate 300 along the second direction. The cutting device 220 is fixedly connected to the mounting plate 210, enabling the mounting plate 210 to drive the cutting device 220 to move along the second direction, thereby causing the cutting device 220 to move towards the electrode tab of the battery cell 2000, thus achieving the cutting of the electrode tab of the battery cell 2000. It can be understood that the second direction is a direction perpendicular to the thickness direction of the base plate 300, i.e. Figure 14 Middle mounting plate 210 to Figure 15 The direction of movement of the mounting plate 210 is... Figure 14 The X direction is shown. It is understood that the second direction can be the same as the first direction, or the second direction can intersect with the first direction. It is understood that the mounting plate 210 and the cutting device 220 can be fixedly connected by screws to ensure stability between them.

[0057] Combination Figure 1 and Figure 14 As shown, in one embodiment, a third slide rail 212 and a third slider 211 are provided below the mounting plate 210. The third slider 211 is used to be fixedly connected to the mounting plate 210, and the third slide rail 212 is used to be fixedly connected to the base plate 300. The third slider 211 slides relative to the third slide rail 212 in a second direction, so that the mounting plate 210 is slidably connected to the base plate 300, reducing the resistance during the movement of the mounting plate 210 and thus improving the movement efficiency of the mounting plate 210.

[0058] In one embodiment, there are two cutting devices 220, which are respectively located on both sides of the mounting plate 210. Both cutting devices 220 move along a second direction driven by the mounting plate 210 to cut the tabs of the battery cell 2000. By providing at least one cutting mechanism 200 on each side of the mounting plate 210, the battery cell 2000 does not need to be positioned twice within the device. Both the positive and negative tabs on both sides of the battery cell 2000 can be cut simultaneously by the cutting mechanism 200, improving the operating efficiency of the positioning and cutting device 1000.

[0059] In one embodiment, there are two cutting mechanisms 200, and the two cutting mechanisms 200 are located on both sides of the battery cell 2000 along the second direction. Each cutting mechanism 200 on both sides is provided with at least two cutting devices 220, thereby improving the cutting efficiency of the cutting mechanism 200 on the battery cell 2000.

[0060] Figure 16 This is a schematic diagram of a cutting mechanism 200 provided in an embodiment of this application, combined with... Figure 1 , Figures 14 to 16 As shown, in one possible implementation, the cutting device 220 is movably connected to the mounting plate 210 along a direction intersecting the second direction, so that the cutting device 220 can be adjusted relative to the mounting plate 210 along the direction intersecting the second direction. This allows the cutting device 220 to be adjusted to the cutting position of the battery cell 2000 tab, improving the cutting accuracy of the cutting device 220 in cutting the battery cell 2000 tab. It can be understood that the direction intersecting the second direction is... Figure 14 Y direction shown.

[0061] Figure 17 This is a schematic diagram of a cutting mechanism 200 provided in an embodiment of this application. Figure 18 This is a schematic diagram of a cutting device 220 provided in an embodiment of this application, combined with... Figure 1 , Figures 14 to 18 As shown, in one possible implementation, the mounting plate 210 has a second mounting hole 213 extending through it in a second direction, and the cutting device 220 has a third mounting hole 221. The second mounting hole 213 and the third mounting hole 221 are arranged opposite to each other so that the fixing bolt 214 on the mounting plate 210 can pass through the second mounting hole 213 and extend into the third mounting hole 221, thereby achieving a fixed connection between the mounting plate 210 and the cutting device 220 and ensuring that the cutting device 220 can move with the mounting plate 210. In one embodiment, the inner diameter of the third mounting hole 221 is less than or equal to the diameter of the fixing bolt 214 to improve the relative stability between the fixing bolt 214 and the cutting device 220 and the mounting plate 210.

[0062] Continuation and combination Figure 1, Figures 14 to 18 As shown, the inner diameter of the second mounting hole 213 along the first direction is larger than the diameter of the fixing bolt 214, so that the fixing bolt 214 can move within the second mounting hole 213 in a direction intersecting the second direction. This causes the cutting device 220, which is fixed to the fixing bolt 214, to move along this direction, enabling adjustment of the cutting device 220 in this direction and improving its flexibility, thereby achieving precise cutting of the chip tabs. It can be understood that the cutting device 220 can adjust its own position according to the cutting position of the battery cell 2000 tabs to achieve precise cutting of the chip tabs.

[0063] In one embodiment, the second mounting hole 213 of the mounting plate 210 has an opening along a direction intersecting the second direction. At least a portion of the cutting device 220 extends into the second mounting hole 213 through the opening to improve the stability of the overall structure of the cutting device 220 and the mounting plate 210. Furthermore, the portion of the cutting device 220 extending into the second mounting hole 213 matches the size of the second mounting hole 213, allowing for lateral fine-tuning of a portion of the structure of the cutting device 220 within the second mounting hole 213.

[0064] In this embodiment, a fixing plate 215 is provided at the opening of the second mounting hole 213, and the fixing plate 215 is fixedly connected to the base plate 300. When the cutting device 220 is adjusted laterally, the fixing plate 215 can limit the lateral adjustment range of the cutting device 220 to ensure the overall stability of the cutting mechanism 200. It can be understood that lateral adjustment is the adjustment of the position of the cutting device 220 along a direction intersecting the second direction.

[0065] In one embodiment, combined with Figure 1 , Figure 14 and Figure 16 As shown, the cutting devices 220 located on both sides of the mounting plate 210 can be adjusted laterally. That is, the distance between the two cutting devices 220 can be adjusted from the first distance L1 to the second distance L2, or from the second distance L2 to the first distance L1, depending on the cutting position of the battery cell 2000. It can be understood that the first distance L1 is smaller than the second distance L2.

[0066] Figure 19 This is a schematic diagram of a cutting device 220 provided in an embodiment of this application, combined with... Figure 1 , Figure 17 and Figure 19 The mounting plate 210 is provided with an adjusting bolt 216. The adjusting bolt 216 is connected to the cutting device 220 along the direction intersecting the second direction. The adjusting bolt 216 is used to drive the cutting device 220 to move along the direction intersecting the second direction, so as to realize the flexible adjustment of the position of the cutting device 220.

[0067] In one embodiment, the cutting device 220 has a fourth mounting hole 222 along a direction intersecting the second direction, and the fixing plate 215 has a fifth mounting hole 217 along a direction intersecting the second direction. The fourth mounting hole 222 and the fifth mounting hole 217 are arranged opposite to each other. An adjusting bolt 216 is used to pass through the fifth mounting hole 217 along a direction intersecting the second direction and extend into the fourth mounting hole 222 to connect the adjusting bolt 216 to the cutting device 220.

[0068] In one embodiment, the fourth mounting hole 222 can be a T-shaped hole, which includes a first hole 2221 and a second hole 2222. The first hole 2221 is located on the side away from the fixing plate 215 along the direction intersecting the second direction, and the second hole 2222 is located between the first hole 2221 and the fixing plate 215. The inner diameter of the first hole 2221 is larger than the inner diameter of the second hole 2222. The diameter of the adjusting bolt 216 in the first hole 2221 is larger than the diameter of the adjusting bolt 216 in the second hole 2222, so that the adjusting bolt 216 can drive the cutting device 220 to reciprocate along the direction intersecting the second direction, thereby improving the flexibility of the cutting device 220 and thus improving the cutting accuracy of the cutting device 220 for the battery cell 2000 tabs.

[0069] In one embodiment, the cutting device 220 includes a blade 224 and a blade holder 223. The blade 224 has a fixing hole 2241, and a bolt is used to pass through the fixing hole 2241 and extend into the mounting hole of the blade holder 223 to achieve the connection between the blade 224 and the blade holder 223. In one embodiment, there can be multiple fixing holes 2241 on the blade 224, and the connection position between the blade 224 and the blade holder 223 can be adjusted according to actual needs to facilitate the cutting of the battery cell 2000.

[0070] Figure 20 This is a schematic diagram of a cutting mechanism 200 for the third elastic member 240 provided in an embodiment of this application, combined with... Figure 1 , Figure 15 and Figure 20As shown, in one possible implementation, the cutting mechanism 200 further includes a limiting base 230, which is fixedly connected to the base plate 300 and located on the side of the mounting plate 210 away from the cutting device 220. The cutting mechanism 200 is provided with a third elastic member 240. Along the second direction, one end of the third elastic member 240 is fixedly connected to the limiting base 230, and the other end is fixedly connected to the mounting plate 210. The third elastic member 240 can elastically deform along the second direction, so that the third elastic member 240 can drive the mounting plate 210 and the cutting device 220 to reset, so as to facilitate the subsequent cutting of other battery cells 2000. Specifically, when the cutting device 220 approaches the battery cell 2000 in the second direction, the third elastic member 240 is stretched; after the battery cell 2000 is cut, the third elastic member 240 rebounds, thereby pulling back the mounting plate 210 and the cutting device 220, and realizing the reset of the mounting plate 210 and the cutting device 220.

[0071] In one embodiment, one end of the third elastic member 240 is passed through the third elastic member 240 by a screw and extends into the base plate 300; the other end of the third elastic member 240 is passed through the third elastic member 240 by a screw and extends into the upper mounting plate 12, thereby fixing the third elastic member 240.

[0072] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A positioning and cutting device for cutting the tabs in a battery cell, characterized in that, The positioning and cutting device includes a positioning and pressing mechanism, a cutting mechanism, and a base plate. The base plate is used to support the battery cell. The positioning and pressing mechanism is movably connected to the base plate and is used to fix the battery cell. The cutting mechanism is movably connected to the base plate and is used to cut the tabs of the battery cell.

2. The positioning and cutting device according to claim 1, characterized in that, The positioning and clamping mechanism includes a fixing device and a positioning device. The fixing device is movably connected to the base plate along a first direction, and the positioning device is used to fix the position of the fixing device. The first direction is a direction perpendicular to the thickness direction of the base plate.

3. The positioning and cutting device according to claim 2, characterized in that, On both sides of the battery cell, the fixing device is provided with at least one positioning arm, and the at least one positioning arm on both sides is used to move along the first direction, and the positioning arm is used to fix the battery cell.

4. The positioning and cutting device according to claim 2, characterized in that, The fixing device includes an upper mounting plate and a positioning block. The upper mounting plate is connected to the positioning block along the first direction, and the upper mounting plate is used to drive the positioning block to move along the first direction.

5. The positioning and cutting device according to claim 4, characterized in that, The positioning block includes a first elastic element. Along the first direction, the first elastic element is located between the upper mounting plate and the positioning block. One end of the first elastic element along the first direction is connected to the positioning block, and the other end of the first elastic element along the first direction is connected to the upper mounting plate.

6. The positioning and cutting device according to claim 4, characterized in that, The fixing device includes a slider and a slide rail. The slider is slidably connected to the slide rail along the first direction. The slide rail is fixedly connected to the upper mounting plate. The slider is fixedly connected to the positioning block. The slider is used to slide along the slide rail with the positioning block.

7. The positioning and cutting device according to claim 2, characterized in that, The positioning device includes a positioning plate and a positioning post. The positioning plate is fixedly connected to the base plate and extends along the first direction. Along the thickness direction of the base plate, the positioning plate is provided with a positioning hole that penetrates itself. The fixing device is provided with a corresponding first mounting hole. The positioning post is used to pass through the first mounting hole and extend into the positioning hole.

8. The positioning and cutting device according to claim 2, characterized in that, The positioning and clamping mechanism is provided with a second elastic element. Along the first direction, one end of the second elastic element is fixed to the base plate, and the other end of the second elastic element is fixed to the fixing device. The second elastic element is used to drive the fixing device to reset along the first direction.

9. The positioning and cutting device according to claim 1, characterized in that, The cutting mechanism includes a mounting plate and a cutting device. The mounting plate is movably connected to the base plate along a second direction, and the cutting device is fixedly connected to the mounting plate along the second direction. The mounting plate is used to drive the cutting device to move along the second direction, which is perpendicular to the thickness direction of the base plate.

10. The positioning and cutting device according to claim 9, characterized in that, The cutting device is movably connected to the mounting plate along a direction intersecting the second direction.

11. The positioning and cutting device according to claim 10, characterized in that, Along the second direction, the mounting plate is provided with a second mounting hole that penetrates itself, and the cutting device is provided with a third mounting hole. The second mounting hole and the third mounting hole are arranged opposite to each other. The fixing bolt on the mounting plate is used to pass through the second mounting hole and extend into the third mounting hole. The inner diameter of the second mounting hole along the direction intersecting the second direction is greater than the diameter of the fixing bolt, and the inner diameter of the third mounting hole is less than or equal to the diameter of the fixing bolt.

12. The positioning and cutting device according to claim 11, characterized in that, The mounting plate is provided with an adjusting bolt, which is connected to the cutting device along a direction intersecting the second direction. The adjusting bolt is used to drive the cutting device to move along a direction intersecting the second direction.

13. The positioning and cutting device according to any one of claims 9-11, characterized in that, The cutting mechanism further includes a limiting base, which is fixedly connected to the base plate and located on the side of the mounting plate away from the cutting device. The cutting mechanism is provided with a third elastic member along the second direction. One end of the third elastic member is fixed to the limiting base, and the other end is fixed to the mounting plate. The third elastic member is used to drive the mounting plate to reset along the second direction.

Images