A high-precision laser cutting device for new energy battery pole pieces

Abstract

The application belongs to the technical field of laser cutting, and particularly relates to a high-precision laser cutting device for new energy battery pole pieces. The upper surface of the base is fixedly connected with a support frame, the positions of the two sides of the upper surface of the base are respectively fixedly connected with a first fixing frame and a second fixing frame, the inside of the first fixing frame is rotationally connected with an unwinding roller, the inside of the second fixing frame is rotationally connected with a winding roller, a transmission assembly is arranged between the unwinding roller and the winding roller, and the inside of the support frame is respectively provided with a support plate and a material moving plate at the upper end and the lower end. In the application, the unwinding roller, the winding roller and the chain wheel and chain transmission mechanism can realize stable step-by-step conveying of the pole piece strip, the limiting roller ensures that the pole piece is horizontally attached to the upper surface of the support plate in the cutting area, provides a flat support surface for laser cutting, effectively prevents material shaking and improves cutting precision.

Description

Technical Field

[0001] This invention relates to a laser cutting device, specifically a high-precision laser cutting device for new energy battery electrodes. Background Technology

[0002] Electrodes (positive and negative electrodes) are the core components of new energy batteries, and their dimensional accuracy and edge quality directly affect the battery's performance and safety. Electrodes are typically made by coating metal foil (aluminum foil, copper foil) with active materials, and then slitting or die-cutting them into the required shapes.

[0003] Traditional mechanical die-cutting methods suffer from drawbacks such as rapid tool wear, decreased precision, burr generation, and time-consuming specification changes, making it difficult to meet the ever-increasing demands for high-precision and high-efficiency production. Laser cutting, with its advantages of non-contact operation, high precision, and high flexibility, is increasingly being applied to electrode processing. However, existing laser cutting equipment still has the following shortcomings when used for continuous electrode production: First, the lack of a precise feeding and receiving system coordinated with laser cutting makes it difficult to achieve stable step-by-step conveying of the electrode strip; second, the lack of effective support under the electrode during cutting easily leads to vibration and deformation of the thin material, affecting cutting accuracy; third, the separation and collection of the electrode and waste after cutting is inconvenient, making automated continuous operation difficult and usually requiring manual intervention, thus reducing production efficiency.

[0004] Therefore, this application designs a high-precision laser cutting device that integrates functions such as precise feeding, cutting support, and automatic material transfer. Summary of the Invention

[0005] The main objective of this disclosure is to provide a high-precision laser cutting device for new energy battery electrodes, so as to effectively solve the problems raised by the inventors in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A high-precision laser cutting device for new energy battery electrodes includes a base. A support frame is fixedly connected to the upper surface of the base. A first fixed frame and a second fixed frame are fixedly connected to the upper surface of the base on both sides of the support frame. An unwinding roller is rotatably connected inside the first fixed frame, and a winding roller is rotatably connected inside the second fixed frame. A transmission assembly is provided between the unwinding roller and the winding roller. A support plate and a transfer plate are respectively provided at the upper and lower ends inside the support frame. A drive assembly for moving the support plate and the transfer plate is provided on both sides inside the support frame. A front-to-back displacement assembly is fixedly connected to one side of the base. A lifting assembly is provided at the upper end of the front-to-back displacement assembly. A left-to-right displacement assembly is provided on one side of the lifting assembly. A laser cutting assembly is provided on one side of the left-to-right displacement assembly.

[0007] Preferably, the transmission assembly includes a take-up motor, sprockets, and a chain. The take-up motor is fixedly connected to one side of the second fixed frame, and the output end of the take-up motor is fixedly connected to one end of the take-up roller. The sprockets are respectively fixedly connected to one end of the unwind roller and the take-up roller, and the sprockets are driven by a chain.

[0008] Preferably, both the first and second fixed frames are rotatably connected to limit rollers on their inner sides.

[0009] Preferably, the drive assembly includes a second screw, a second servo motor, a third screw, and a third servo motor. The second screw and the third screw are rotatably connected to the upper and lower ends of one side inside the support frame, respectively. The second servo motor and the third servo motor are fixedly connected to both sides of the support frame, respectively. The output ends of the second servo motor and the third servo motor are fixedly connected to one end of the second screw and the third screw, respectively. A first limiting rod and a second limiting rod are fixedly connected to the upper and lower ends of one side inside the support frame, respectively.

[0010] Preferably, a first connecting block is fixedly connected to both ends of one side of the support plate, and a second connecting block is fixedly connected to both ends of one side of the transfer plate. The first connecting block on one side is threadedly connected to the second screw, and the first connecting block on the other side is slidably connected to the first limiting rod. The second connecting block on one side is threadedly connected to the third screw, and the second connecting block on the other side is slidably connected to the second limiting rod.

[0011] Preferably, the front-to-back displacement component includes a first slide rail fixedly connected to the base, a first screw rotatably connected inside the first slide rail, a first servo motor fixedly connected to one end of the first slide rail, and the output end of the first servo motor fixedly connected to one end of the first screw.

[0012] Preferably, the lifting assembly includes a second slide rail, a first slider is fixedly connected to the bottom end of the second slide rail, the first slider is slidably connected to the first slide rail and threadedly connected to the first screw, a fourth screw is vertically rotatably connected inside the second slide rail, a fourth servo motor is fixedly connected to the upper end of the second slide rail, and the output end of the fourth servo motor is fixedly connected to the upper end of the fourth screw.

[0013] Preferably, the left and right displacement component includes a third slide rail, one end of which is fixedly connected to a second slider, the second slider being slidably connected to the second slide rail and threadedly connected to a fourth screw, a fifth screw being rotatably connected inside the third slide rail, a fifth servo motor being fixedly connected to one end of the third slide rail, and the output end of the fifth servo motor being fixedly connected to one end of the fifth screw.

[0014] Preferably, the laser cutting assembly includes a third slider that is slidably connected to a third slide rail, and a laser cutting head is fixedly connected to one side of the third slider.

[0015] In view of this, compared with the prior art, the beneficial effects of the present invention are: (i) In this application, by setting up unwinding rollers, winding rollers and sprocket chain transmission mechanism, stable step-by-step conveying of electrode strip can be realized; the limiting roller ensures that the electrode strip is horizontally attached to the upper surface of the support plate in the cutting area, providing a flat support surface for laser cutting, effectively preventing material vibration and improving cutting accuracy.

[0016] (ii) In this application, by setting a support plate and a transfer plate controlled by an independent drive component in the support frame, the coordinated action of cutting support and finished product collection is realized: during cutting, the support plate is located below the electrode sheet to provide rigid support. After cutting, the support plate is moved away, and the finished electrode sheet falls to the transfer plate below by its own weight. Then the transfer plate is moved out, which is convenient for manual or robotic arm to pick up the material. At the same time, the support plate is reset to cut the next piece, which improves production efficiency. Attached Figure Description

[0017] Figure 1 The image shown is a front view of the high-precision laser cutting device for new energy battery electrodes provided by the present invention. Figure 2 The image shown is a rear view of the high-precision laser cutting device for new energy battery electrodes provided by the present invention. Figure 3 The diagram shown illustrates the working principle of the high-precision laser cutting device for new energy battery electrodes provided by this invention. Figure 4 The image shown is a front view of the inside of the support frame; Figure 5 The image shown is an internal rear view of the support frame. Figure 6 The diagram shown is a schematic of the support plate structure. Figure 7 The diagram shown is a schematic of the transfer plate structure. Figure 8 The diagram shows the structure of the lifting assembly, the left and right displacement assembly, and the laser cutting assembly.

[0018] icon: 1-Base; 2-Support frame; 3-First fixed frame; 4-Unwind roller; 5-Limiting roller; 6-Second fixed frame; 7-Twist roller; 8-Twist motor; 9-Sprocket; 10-Chain; 11-Front-back displacement assembly; 12-Lifting assembly; 13-Left-right displacement assembly; 14-Laser cutting assembly; 15-Support plate; 16-Transfer plate; 17-First slide rail; 18-First screw; 19-First servo motor; 20-Second screw; 21-Second servo motor; 22-Third screw; 23-Third servo motor; 24-First limit rod; 25-Second limit rod; 26-First connecting block; 27-Second connecting block; 28-Second slide rail; 29-First slider; 30-Fourth screw; 31-Fourth servo motor; 32-Third slide rail; 33-Second slider; 34-Fifth screw; 35-Fifth servo motor; 36-Third slider; 37-Laser cutting head. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 The present invention provides the following embodiments: A high-precision laser cutting device for new energy battery electrodes includes a base 1, which serves as the supporting foundation for the entire device. A support frame 2 is fixedly connected to the center of the upper surface of the base 1 for mounting a cutting auxiliary mechanism. A first fixed frame 3 and a second fixed frame 6 are fixedly connected to the left and right sides of the support frame 2 on the upper surface of the base 1, respectively. An unwinding roller 4 is rotatably mounted on the first fixed frame 3, and a winding roller 7 is rotatably mounted on the second fixed frame 6. A transmission assembly is provided between the unwinding roller 4 and the winding roller 7, including a winding motor 8 fixed to one side of the second fixed frame 6, with the output end of the winding motor 8 fixedly connected to one end of the winding roller 7; a sprocket 9 is fixed to one end of each of the unwinding roller 4 and the winding roller 7, and the two sprockets 9 are connected by a chain 10. When the winding motor 8 drives the winding roller 7 to rotate, the unwinding roller 4 rotates synchronously through the transmission of the sprockets 9 and the chain 10, thereby pulling the electrode strip from the unwinding roller 4 and conveying it to the winding roller 7. The inner sides (the side closest to the support frame 2) of the first fixing frame 3 and the second fixing frame 6 are rotatably connected to the limiting rollers 5, which are used to guide the electrode strip so that it remains horizontally attached to the upper surface of the support plate 15 when it enters the area of ​​the support frame 2.

[0021] In this implementation scheme, the unwinding roller 4 and the winding roller 7 are driven to rotate synchronously by the winding motor 8 to achieve stable step-by-step conveying of the electrode strip; the limiting roller 5 ensures that the electrode strip is flat and wrinkle-free in the cutting area, providing good conditions for laser cutting.

[0022] To support the electrode sheets during the cutting process and automatically remove the finished product after cutting, this device has a support plate 15 and a transfer plate 16 respectively installed at the upper and lower ends inside the support frame 2. Both the support plate 15 and the transfer plate 16 are horizontal plate structures, and their movement is controlled by a drive assembly. The drive assembly includes a second screw 20 and a third screw 22 rotatably connected to the upper and lower ends of one side inside the support frame 2, and a first limiting rod 24 and a second limiting rod 25 fixedly connected to the upper and lower ends of the same side inside the support frame 2. The second screw 20 and the third screw 22 are driven by a second servo motor 21 and a third servo motor 23 fixed to both sides of the support frame 2, respectively. A first connecting block 26 is fixedly connected to both ends of one side of the bottom of the support plate 15. One first connecting block 26 is threadedly connected to the second screw 20, and the other first connecting block 26 is slidably connected to the first limiting rod 24. The bottom end of the transfer plate 16 is fixedly connected to two ends of a second connecting block 27. One of the second connecting blocks 27 is threadedly connected to the third screw 22, and the other second connecting block 27 is slidably connected to the second limiting rod 25.

[0023] Specifically, the second servo motor 21 drives the second screw 20 to rotate, which in turn moves the support plate 15 horizontally along the direction of the first limiting rod 24 (e.g., to the outside of the support frame 2), causing the support plate 15 to move away from under the electrode. The third servo motor 23 drives the third screw 22 to rotate, which in turn moves the transfer plate 16 horizontally along the direction of the second limiting rod 25 (e.g., to the other side of the support frame 2), causing the transfer plate 16 to move out for material removal.

[0024] Specifically, to achieve precise three-dimensional positioning of the laser cutting head 37, this device includes a front-to-back displacement assembly 11, a lifting assembly 12, and a left-to-right displacement assembly 13 on one side of the base 1. The front-to-back displacement assembly 11 includes a first slide rail 17 fixed to the base 1, with a first screw 18 rotatably connected inside the first slide rail 17. A first servo motor 19 is fixed to one end of the first slide rail 17, and the output end of the first servo motor 19 is connected to one end of the first screw 18. The lifting assembly 12 includes a second slide rail 28, with a first slider 29 fixed to the bottom end of the second slide rail 28. The first slider 29 slides in cooperation with the first slide rail 17 and is threadedly connected to the first screw 18. A fourth screw 30 is vertically rotatably connected inside the second slide rail 28, and a fourth servo motor 31 is fixed to the upper end of the second slide rail 28. The output end of the fourth servo motor 31 is connected to the upper end of the fourth screw 30. The left-right displacement component 13 includes a third slide rail 32, with a second slider 33 fixed to one end of the third slide rail 32. The second slider 33 slides and engages with the second slide rail 28 and is threadedly connected to a fourth screw 30. A fifth screw 34 is rotatably connected inside the third slide rail 32, and a fifth servo motor 35 is fixed to one end of the third slide rail 32. The output end of the fifth servo motor 35 is connected to one end of the fifth screw 34. The laser cutting component 14 includes a third slider 36 that slides and engages with the third slide rail 32, with a laser cutting head 37 fixed to one side of the third slider 36.

[0025] Specifically, the first servo motor 19 drives the first screw 18, enabling the laser cutting head 37 to move forward and backward (Y-axis); the fourth servo motor 31 drives the fourth screw 30, enabling the laser cutting head 37 to move up and down (Z-axis); and the fifth servo motor 35 drives the fifth screw 34, enabling the laser cutting head 37 to move left and right (X-axis). This three-axis linkage allows for precise control of the laser cutting head 37 along a preset trajectory, achieving high-precision cutting of the electrode sheet.

[0026] The specific implementation of this embodiment is as follows: the support plate 15 is located inside the support frame 2 directly below the electrode strip, and the transfer plate 16 is located on one side below the support plate 15 (standby position). The electrode strip is drawn out from the unwinding roller 4, guided by the limiting roller 5, and then horizontally passes through the upper surface of the support plate 15, and is then guided by the limiting roller 5 on the other side to the winding roller 7; The winding motor 8 drives the winding roller 7 to rotate, and simultaneously drives the unwinding roller 4 to rotate synchronously through the sprocket 9 and chain 10, so that the electrode strip is conveyed forward by one step, and the area to be cut is accurately delivered above the support plate 15 before stopping. The limit roller 5 ensures that the strip is in close contact with the upper surface of the support plate 15; According to the preset cutting program, the front-to-back displacement component 11, the lifting component 12, and the left-to-right displacement component 13 work together to drive the laser cutting head 37 to move to the starting position, and then move along the predetermined trajectory to perform laser cutting on the electrode strip. During the cutting process, the support plate 15 provides rigid support to ensure cutting accuracy; After cutting, the laser cutting head 37 resets. The second servo motor 21 starts, driving the second screw 20 to rotate, which moves the support plate 15 horizontally to one side of the support frame 2, causing the cut electrode sheet to lose support and fall onto the transfer plate 16 below under its own weight. Subsequently, the third servo motor 23 starts, driving the third screw 22 to rotate, which moves the transfer plate 16 horizontally to the other side of the support frame 2 to the material picking position, where the operator can then remove the finished electrode sheet (or it can be picked up by a robotic arm). At the same time, the support plate 15 resets to the cutting position, preparing for the next piece to be cut. The winding motor 8 restarts, conveying the waste strip forward so that a new section to be cut enters above the support plate 15. At the same time, the transfer plate 16 returns to its standby position, ready to receive the next finished piece. The above steps are repeated to achieve continuous automated cutting.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-precision laser cutting device for new energy battery electrodes, characterized in that: The base (1) is characterized in that: a support frame (2) is fixedly connected to the upper surface of the base (1), a first fixed frame (3) and a second fixed frame (6) are fixedly connected to the upper surface of the base (1) at the positions on both sides of the support frame (2), an unwinding roller (4) is rotatably connected inside the first fixed frame (3), a winding roller (7) is rotatably connected inside the second fixed frame (6), a transmission assembly is provided between the unwinding roller (4) and the winding roller (7), a support plate (15) and a transfer plate (16) are respectively provided at the upper and lower ends inside the support frame (2), a driving assembly for driving the support plate (15) and the transfer plate (16) to move are respectively provided on both sides inside the support frame (2), a front-to-back displacement assembly (11) is fixedly connected to one side of the base (1), a lifting assembly (12) is provided at the upper end of the front-to-back displacement assembly (11), a left-to-right displacement assembly (13) is provided on one side of the lifting assembly (12), and a laser cutting assembly (14) is provided on one side of the left-to-right displacement assembly (13).

2. The high-precision laser cutting device for new energy battery electrodes according to claim 1, characterized in that: The transmission assembly includes a winding motor (8), a sprocket (9) and a chain (10). The winding motor (8) is fixedly connected to one side of the second fixed frame (6), and the output end of the winding motor (8) is fixedly connected to one end of the winding roller (7). The sprocket (9) is fixedly connected to one end of the unwinding roller (4) and the winding roller (7), respectively. The sprockets (9) are driven by the chain (10).

3. The high-precision laser cutting device for new energy battery electrodes according to claim 2, characterized in that: The first fixed frame (3) and the second fixed frame (6) are both rotatably connected to the inner side of the limit roller (5).

4. A high-precision laser cutting device for new energy battery electrodes according to claim 3, characterized in that: The drive assembly includes a second screw (20), a second servo motor (21), a third screw (22), and a third servo motor (23). The second screw (20) and the third screw (22) are rotatably connected to the upper and lower ends of one side of the support frame (2), respectively. The second servo motor (21) and the third servo motor (23) are fixedly connected to both sides of the support frame (2), respectively. The output ends of the second servo motor (21) and the third servo motor (23) are fixedly connected to one end of the second screw (20) and the third screw (22), respectively. The upper and lower ends of one side of the support frame (2) are fixedly connected to a first limiting rod (24) and a second limiting rod (25), respectively.

5. A high-precision laser cutting device for new energy battery electrodes according to claim 4, characterized in that: The support plate (15) has a first connecting block (26) fixedly connected to both ends of one side of the bottom end, and the transfer plate (16) has a second connecting block (27) fixedly connected to both ends of one side of the bottom end. The first connecting block (26) on one side is threadedly connected to the second screw (20), and the first connecting block (26) on the other side is slidably connected to the first limiting rod (24). The second connecting block (27) on one side is threadedly connected to the third screw (22), and the second connecting block (27) on the other side is slidably connected to the second limiting rod (25).

6. A high-precision laser cutting device for new energy battery electrodes according to claim 5, characterized in that: The front and rear displacement component (11) includes a first slide rail (17) fixedly connected to the base (1), a first screw (18) is rotatably connected inside the first slide rail (17), a first servo motor (19) is fixedly connected to one end of the first slide rail (17), and the output end of the first servo motor (19) is fixedly connected to one end of the first screw (18).

7. A high-precision laser cutting device for new energy battery electrodes according to claim 6, characterized in that: The lifting assembly (12) includes a second slide rail (28), a first slider (29) is fixedly connected to the bottom end of the second slide rail (28), the first slider (29) is slidably connected to the first slide rail (17) and threadedly connected to the first screw (18), a fourth screw (30) is vertically rotatably connected inside the second slide rail (28), a fourth servo motor (31) is fixedly connected to the upper end of the second slide rail (28), and the output end of the fourth servo motor (31) is fixedly connected to the upper end of the fourth screw (30).

8. A high-precision laser cutting device for new energy battery electrodes according to claim 7, characterized in that: The left and right displacement component (13) includes a third slide rail (32), one end of which is fixedly connected to a second slider (33). The second slider (33) is slidably connected to the second slide rail (28) and threadedly connected to the fourth screw (30). The third slide rail (32) is rotatably connected to a fifth screw (34). One end of the third slide rail (32) is fixedly connected to a fifth servo motor (35), and the output end of the fifth servo motor (35) is fixedly connected to one end of the fifth screw (34).

9. A high-precision laser cutting device for new energy battery electrodes according to claim 8, characterized in that: The laser cutting assembly (14) includes a third slider (36) slidably connected to a third slide rail (32), and a laser cutting head (37) is fixedly connected to one side of the third slider (36).

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