A type of electrode coil assembly mechanism

Abstract

This utility model belongs to the field of battery manufacturing and relates to an electrode reel assembly mechanism, comprising: a robotic arm unit and a carrier. The robotic arm unit includes a connecting plate and a cylinder, the fixed end of which is connected to a preset position; the connecting plate is detachably connected to the movable end of the cylinder; a suction nozzle fixing plate is connected to the connecting plate, and a plurality of vacuum suction nozzles are connected to the suction nozzle fixing plate in a circular array; a mounting plate is connected to the suction nozzle fixing plate, and a plurality of elastic elements are connected to the mounting plate in a circular array, one end of each elastic element being fixedly connected to the mounting plate, and the other end being connected to a material ejection plate; a guide block is connected to the material ejection plate, and a guide groove cooperating with the guide block is provided on the mounting plate; the carrier is located below the robotic arm unit. The beneficial effects of adopting the above structure are: improving the stability of the reel, ensuring precise unwinding and welding accuracy of the electrode tabs, thereby effectively improving welding quality.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, specifically, it relates to an electrode coil assembly mechanism. Background Technology

[0002] In the manufacturing process of 3C soft-pack batteries, the tabs (tab sheets) are welded to the battery electrode sheets using an ultrasonic welding machine. Due to the structural and material characteristics of the tabs, if the edges of the tab roll are uneven on the unwinding reel, the tab positioning can easily become misaligned. Misaligned tabs may lead to inaccurate alignment between the ultrasonic welding head and the electrode sheet, causing the weld point to deviate from the surface of the current collector (such as copper or aluminum foil) and potentially land on the battery's active material, resulting in poor welding, such as incomplete soldering or detachment. Weak welds and poor welding quality can increase the internal impedance of the battery, affecting its performance stability and potentially increasing the risk of thermal runaway, posing a safety hazard. Furthermore, poor welding leads to a high rework rate in the production process, increasing production costs. Therefore, ensuring that the tab roll is properly installed and that it does not become eccentric during unwinding is a significant challenge. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides an electrode ear coil assembly mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: As one aspect of this utility model, a tab reel assembly mechanism is proposed, comprising: a robotic arm unit and a carrier, wherein the robotic arm unit includes a connecting plate and a cylinder, the fixed end of the cylinder is connected to a preset position; and the connecting plate is detachably connected to the movable end of the cylinder. A nozzle fixing plate is connected to the connecting plate, and a plurality of vacuum nozzles are connected to the nozzle fixing plate in a circular array. A mounting plate is connected to the nozzle fixing plate. A plurality of elastic elements are connected to the mounting plate in a circular array. One end of each elastic element is fixedly connected to the mounting plate, and the other end is connected to a material ejector plate. The elastic force of the elastic elements is less than the vacuum pressure of the vacuum nozzle. The ejector plate is connected to a guide block, and the mounting plate is provided with a guide groove that cooperates with the guide block; when the ejector plate moves relative to the mounting plate, the guide block moves on the guide groove. The carrier is located below the robotic arm unit; the carrier includes a carrier body, a first mounting groove is formed in the middle of the carrier body, a shaft disk is mounted on the first mounting groove, there is a preset interval between the side surface of the shaft disk and the inner sidewall of the first mounting groove, and a buffer ring is installed within the preset interval; the carrier body is provided with a placement groove for placing the reel.

[0005] Furthermore, a boss is formed on the lower surface of the ejector plate, and a groove is formed in the middle of the boss.

[0006] Furthermore, the buffer ring is made of ABS material.

[0007] Furthermore, an upper guide post is formed in the middle of the upper surface of the shaft disk, and a lower guide post is formed in the middle of the lower surface of the shaft disk. The lower guide post is adapted to the mounting hole in the first mounting groove; the upper guide post is adapted to the groove.

[0008] Furthermore, the bottom surface of the placement groove is flush with the upper surface of the shaft disk and the upper surface of the buffer ring.

[0009] Furthermore, a guide shaft is connected to the connecting plate, and a guide sleeve is slidably connected to the guide shaft. The guide sleeve is connected to the fixed end of the cylinder through a guide connector.

[0010] The advantages of this utility model's electrode reel assembly mechanism are specifically reflected in: improving the stability of the reel, ensuring accurate unwinding and welding precision of the electrode tabs, thereby effectively improving welding quality, reducing defective products in the production process, lowering production costs, and improving the safety and reliability of the battery. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0012] Figure 1 This is a structural schematic diagram of the electrode ear coil assembly mechanism of this utility model; Figure 2 This is a schematic diagram of the structure of the robotic arm unit of this utility model; Figure 3 This is a front view of the structure of the vehicle of this utility model; Figure 4 This is a bottom view of the structure of the vehicle of this utility model; Figure 5 This is a reference diagram showing the usage state of the electrode ear coil assembly mechanism of this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] One embodiment of this application provides a tab reel assembly mechanism, such as... Figures 1-5 As shown, it includes: a robotic arm unit 1 and a carrier 2. The robotic arm unit 1 includes a connecting plate 11 and a cylinder 12. The fixed end of the cylinder 12 is connected to a preset position, such as the position where the coil needs to be installed. The connecting plate 11 is detachably connected to the movable end of the cylinder 12. The structure of the cylinder 12 is existing technology and will not be described in detail here. Other power components can also be used to replace the cylinder 12. A nozzle fixing plate 13 is connected to the connecting plate 11. A plurality of vacuum nozzles 14 are connected to the nozzle fixing plate 13 in a circular array. The structure and working principle of the vacuum nozzles 14 are existing technologies and will not be described in detail here. A mounting plate 15 is connected to the nozzle fixing plate 13. A plurality of elastic elements 16 are connected in a circular array on the mounting plate 15. For example, each elastic element 16 is a spring. One end of each elastic element 16 is fixedly connected to the mounting plate 15, and the other end is connected to a material ejector plate 17. The elastic force of the elastic element 16 is less than the vacuum pressure of the vacuum nozzle 14. The ejector plate 17 is connected to a guide block 18, and the mounting plate 15 is provided with a guide groove 19 that cooperates with the guide block 18. When the ejector plate 17 moves relative to the mounting plate 15, the guide block 18 moves on the guide groove 19 to provide guidance and prevents deviation. A boss 171 is formed on the lower surface of the ejector plate 17, and a groove 172 is provided in the middle of the boss 171. The carrier 2 is located below the robotic arm unit 1. The carrier 2 includes a carrier body 21, a first mounting groove 22 is formed in the middle of the carrier body 21, a shaft disk 23 is mounted on the first mounting groove 22, there is a preset gap between the side surface of the shaft disk 23 and the inner sidewall of the first mounting groove 22, a buffer ring 24 is installed in the preset gap, the buffer ring 24 is made of ABS material; an upper guide post 231 is formed in the middle of the upper surface of the shaft disk 23, a lower guide post 232 is formed in the middle of the lower surface of the shaft disk 23, the lower guide post 232 is adapted to the mounting hole 221 in the first mounting groove 22, that is, the shaft disk 23 is installed in the first mounting groove 22 through the lower guide post 232, and then buffered and limited by the buffer ring 24; the upper guide post 231 is adapted to the groove 172, and when the robotic arm unit 1 descends to the preset position, the groove 172 and the upper guide post 231 cooperate. The carrier body 21 is provided with a placement groove 25 for placing the reel 3. The bottom surface of the placement groove 25 is flush with the upper surface of the shaft disc 23 and the upper surface of the buffer ring 24. The depth of the placement groove 25 is slightly greater than the thickness of the reel 3. After the reel 3 is placed in the placement groove 25, the shaft hole of the reel 3 cooperates with the upper guide post 231.

[0015] Furthermore, such as Figure 2 As shown, a guide shaft 4 is connected to the connecting plate 11, and a guide sleeve 5 is slidably connected to the guide shaft 4. The guide sleeve 5 is connected to the fixed end of the cylinder 12 through the guide connector 6, so that the ejector plate 17 is more stable during movement.

[0016] In use, a transparent acrylic reel 3 is placed in the placement slot 25 of the carrier 2. After the carrier 2 is transported to the preset assembly station via the conveyor line, the cylinder 12 of the robot arm unit 1 is activated, driving the mounting plate 15 and the unloading plate 17 to descend to the preset position. The vacuum nozzle 14 comes into contact with the surface of the reel 3 and works to suck up the reel 3. Then, the upper guide post 231 continues to descend and cooperates with the groove 172. The unloading plate 17 compresses the elastic element 16. The robot arm unit 1 grabs the reel 3 through the vacuum nozzle 14. After grabbing and placing it in the predetermined position, the vacuum nozzle 14 stops working, and the unloading plate 17 pushes the reel 3 out under the action of the elastic element 16.

[0017] As described above, the beneficial effects of the tab reel assembly mechanism of this application are: improving the stability of the reel, ensuring accurate unwinding and welding precision of the tabs, thereby effectively improving welding quality, reducing defective products in the production process, reducing production costs, and improving the safety and reliability of the battery.

[0018] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A pole lug reel assembly mechanism, characterized in that, It includes: The robotic arm unit (1) and the carrier (2) are provided. The robotic arm unit (1) includes a connecting plate (11) and a cylinder (12). The fixed end of the cylinder (12) is connected to a preset position. The connecting plate (11) is detachably connected to the movable end of the cylinder (12). A nozzle fixing plate (13) is connected to the connecting plate (11), and a plurality of vacuum nozzles (14) are connected in a circular array on the nozzle fixing plate (13). A mounting plate (15) is connected to the nozzle fixing plate (13). Several elastic elements (16) are connected in a circular array on the mounting plate (15). One end of each elastic element (16) is fixedly connected to the mounting plate (15), and the other end of each elastic element (16) is connected to a material ejector plate (17). The elastic force of the elastic element (16) is less than the vacuum pressure of the vacuum nozzle (14). The ejector plate (17) is connected to a guide block (18), and the mounting plate (15) is provided with a guide groove (19) that cooperates with the guide block (18); when the ejector plate (17) moves relative to the mounting plate (15), the guide block (18) moves on the guide groove (19); The carrier (2) is located below the robotic arm unit (1); the carrier (2) includes a carrier body (21), a first mounting groove (22) is formed in the middle of the carrier body (21), a shaft disk (23) is mounted on the first mounting groove (22), there is a preset interval between the side surface of the shaft disk (23) and the inner side wall of the first mounting groove (22), and a buffer ring (24) is installed in the preset interval; the carrier body (21) is provided with a placement groove (25) for placing the coil (3).

2. The electrode lug reel assembly mechanism as described in claim 1, characterized in that, The lower surface of the ejector plate (17) is formed with a boss (171), and a groove (172) is provided in the middle of the boss (171).

3. The electrode lug reel assembly mechanism as described in claim 1, characterized in that, The buffer ring (24) is made of ABS material.

4. The electrode lug reel assembly mechanism as described in claim 2, characterized in that, An upper guide post (231) is formed in the middle of the upper surface of the shaft disk (23), and a lower guide post (232) is formed in the middle of the lower surface of the shaft disk (23). The lower guide post (232) is adapted to the mounting hole (221) in the first mounting groove (22); the upper guide post (231) is adapted to the groove (172).

5. The electrode lug reel assembly mechanism as described in claim 4, characterized in that, The bottom surface of the placement groove (25) is flush with the upper surface of the shaft disk (23) and the upper surface of the buffer ring (24).

6. The electrode lug reel assembly mechanism as described in claim 5, characterized in that, A guide shaft (4) is connected to the connecting plate (11), and a guide sleeve (5) is slidably connected to the guide shaft (4). The guide sleeve (5) is connected to the fixed end of the cylinder (12) through a guide connector (6).

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