A cutting device

Abstract

The utility model provides a kind of cutting device, comprising: upper cutter assembly, lower cutter assembly;Lower cutter assembly is installed on workbench, it includes electric core positioning part, and the lower cutter in the electric core positioning part both sides, lower cutter has first cutting part, first cutting part is located in the position corresponding with the cutting position required by curved surface electric core, and it is configured as the profiled curve complementary with second cutting part in upper cutter assembly, and the height of first cutting part makes curved surface electric core install in electric core positioning part, from below abutting curved surface electric core side edge edge after;Upper cutter assembly at least includes upper cutter, upper cutter has second cutting part, second cutting part is configured as the profiled curve compatible with the shape to be cut of curved surface electric core side edge edge, and its position is opposite with first cutting part;First cutting part and second cutting part can mutually cooperate, to complete the cutting of curved surface electric core side edge edge.The device solves the problem that cutting shape and design shape do not match in prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of pouch batteries, and in particular to a cutting device. Background Technology

[0002] In the manufacturing process of pouch batteries, after the cell is encapsulated in an aluminum-plastic film and heat-sealed, an excess outer encapsulation edge is formed at the tail edge. To meet the design dimensions and appearance requirements of the final product, this encapsulation edge must be precisely cut.

[0003] Currently, common industry solutions for this process rely on straight cutters for slitting or simple molds for punching. However, with increasingly complex battery designs, especially the growing prevalence of curved cell structures designed to fit specific product spaces, the tail end often exhibits a complex three-dimensional arc contour. The fixed and singular cutting edge trajectory of straight cutters or simple molds cannot precisely conform to the arc contour of the curved cell tail. This results in uneven side edges, residual corners, or excessive burrs after cutting, failing to perfectly match the design shape. This not only affects the product's aesthetics but may also lead to inadequate sealing due to inconsistent packaging edge dimensions, potentially causing battery performance and safety hazards.

[0004] Therefore, the industry urgently needs a specialized cutting device that can actively adapt to the arc-shaped profile of the tail of a curved battery cell. Utility Model Content

[0005] This utility model provides a cutting device to solve the problems of mismatch between the side edge of the cut and the arc contour of the battery tail and poor cutting quality in the traditional cutting method of the prior art. It realizes high-precision cutting of curved battery cells, ensures that the cutting shape is completely consistent with the shape of the pre-designed cutting opening, and the cut is neat and burr-free.

[0006] This utility model embodiment provides a cutting device, including: an upper cutting blade assembly and a lower cutting blade assembly; the lower cutting blade assembly is mounted on a worktable and includes a curved battery cell positioning part adapted to the shape of a curved battery cell, and lower cutting blades located on both sides of the battery cell positioning part. The lower cutting blades have a first cutting part, which is located at a position corresponding to the required cutting position of the curved battery cell and is configured as a contour curve complementary to the second cutting part in the upper cutting blade assembly. The height of the first cutting part is such that after the curved battery cell is installed in the battery cell positioning part, the first cutting part abuts against the side edge of the curved battery cell from below; the upper cutting blade assembly includes at least an upper cutting blade, which has a second cutting part. The second cutting part is configured as a contour curve adapted to the shape to be cut of the side edge of the curved battery cell, and the position of the second cutting part is opposite to the first cutting part; the first cutting part and the second cutting part can cooperate with each other to complete the cutting of the side edge of the curved battery cell.

[0007] Optionally, the cell positioning part is a groove structure, the depth of which matches the thickness of the curved cell body.

[0008] Optionally, the outer side of the lower cutter is provided with a vertical groove.

[0009] Optionally, the upper cutting blade assembly also includes an upper cutting blade clamping component movably disposed in the hollow area of ​​the upper cutting blade assembly. The first bottom surface of the upper cutting blade clamping component facing the lower cutting blade assembly is constructed as a contoured curved surface complementary to the cell positioning part. The first bottom surface of the upper cutting blade clamping component can fit against the cell positioning part so that the upper cutting blade clamping component clamps the curved cell.

[0010] Optionally, the upper cutter assembly also includes an upper cutter side clamping block, with the upper cutter located on opposite sides of the hollow region of the upper cutter side clamping block; the second bottom surface of the upper cutter side clamping block facing the direction of the lower cutter assembly is constructed as a contoured surface.

[0011] Optionally, the upper cutter and the side clamping block of the upper cutter are fixed together as one piece.

[0012] Optionally, it may also include: a compression spring; the compression spring is partially housed within the hollow region of the upper cutter assembly and is connected to the upper cutter clamping assembly.

[0013] Optionally, it also includes a pressure bar assembly fixed on the worktable; the pressure bar assembly includes a pressure bar and a pressure bar drive mechanism, with both ends of the pressure bar rotatably connected to the pressure bar drive mechanism; before the cutting process, the pressure bar drive mechanism drives the pressure bar to rotate to press the curved battery cell above the battery cell positioning part.

[0014] Optionally, the pressure rod drive mechanism includes a pressure rod fixing seat, a pressure rod rotating shaft, and a pressure rod rotating arm; the pressure rod rotating shaft is rotatably disposed in the pressure rod fixing seat, and the pressure rod rotating arm is fixed to the pressure rod rotating shaft and driven by the pressure rod rotating shaft; both ends of the pressure rod are pivotally connected to the pressure rod rotating arm; the pressure rod drive mechanism drives the pressure rod to rotate above the battery cell positioning part by driving the pressure rod rotating shaft.

[0015] Optionally, the worktable is provided with a lower cutter receiving groove, and the lower cutter assembly is fixed in the lower cutter receiving groove by a fastening structure provided on the bottom surface of the lower cutter assembly.

[0016] Compared with the prior art, this application has the following advantages: This application provides a cutting device, including: an upper cutting blade assembly and a lower cutting blade assembly; the lower cutting blade assembly is mounted on a worktable and includes a curved cell positioning part adapted to the shape of a curved cell, and lower cutting blades located on both sides of the cell positioning part. The lower cutting blades have a first cutting part, which is located at a position corresponding to the required cutting position of the curved cell and is configured as a contour curve complementary to the second cutting part in the upper cutting blade assembly. The height of the first cutting part is such that after the curved cell is mounted on the cell positioning part, the first cutting part abuts against the side edge of the curved cell from below; the upper cutting blade assembly is mounted on a cutting drive mechanism and includes at least an upper cutting blade. The upper cutting blade has a second cutting part, which is configured as a contour curve adapted to the shape to be cut of the side edge of the curved cell, and the position of the second cutting part is opposite to the first cutting part; the first cutting part and the second cutting part can cooperate with each other to complete the cutting of the side edge of the curved cell.

[0017] The cutting device provided in this application employs a contoured curved surface in its cell positioning section, which is adapted to the shape of the curved cell. The second cutting section is constructed as a contoured curve adapted to the shape to be cut on the side edge of the curved cell. The first cutting section is constructed as a complementary contoured curve to the second cutting section. This dual contouring design ensures that the cutting trajectory is highly consistent with the shape to be cut on the side edge of the curved cell, enabling the acquisition of the desired cut edge shape on the side edge of the curved cell. Furthermore, the first and second cutting sections are arranged in a complementary alignment manner. Through the coordinated movement of the first and second cutting sections, the aluminum-plastic film is sheared and separated, resulting in a smooth cut edge that matches the pre-designed cut edge shape. Therefore, this cutting device achieves high-precision cutting of curved cells, ensuring that the cut shape is completely consistent with the pre-designed cut edge shape, and that the cut is neat and burr-free. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an isometric view of a cutting device according to a preferred embodiment of the present invention.

[0020] Figure 2 This is a front view of a cutting device according to a preferred embodiment of the present invention.

[0021] Figure 3 This is a right view of a cutting device according to a preferred embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the lower cutting blade assembly.

[0023] Figure 5 This is a schematic diagram of the installation of curved battery cells.

[0024] Figure 6 This is a schematic diagram of the upper cutting blade assembly.

[0025] Figure 7 This is a schematic diagram of the upper cutting blade clamping assembly.

[0026] Figure 8 This is a schematic diagram of the installation of the upper cutting blade clamping assembly.

[0027] Figure 9 This is a schematic diagram of the compression bar assembly.

[0028] Figure 10 This is a schematic diagram of the workbench.

[0029] Figure 11 This is a schematic diagram of the cutting process of the cutting device on the side edge of the curved battery cell.

[0030] Figure 12 This is a schematic diagram of the cut curved battery cell.

[0031] In the diagram: 10-Cutting device, 20-Curved battery cell, 21-Side edge of curved battery cell, 30-Cutting curved battery cell, 100-Upper cutting blade assembly, 200-Lower cutting blade assembly, 300-Worktable, 400-Compression spring, 500-Pressure rod assembly, 101-Upper cutting blade, 102-Second cutting section, 103-Hollow area, 104-Upper cutting blade clamping assembly, 105-First bottom surface, 1 06-Upper cutter side clamping block, 107-Second bottom surface, 108-Base plate of upper cutter assembly, 201-Cell positioning part, 202-Lower cutter, 203-First cutting part, 301-Lower cutter receiving groove, 302-Pressure rod assembly receiving groove, 501-Pressure rod, 502-Pressure rod drive mechanism, 5021-Pressure rod fixing seat, 5022-Pressure rod rotating shaft, 5023-Pressure rod rotating arm. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1 , Figure 2 , Figure 3As shown, this application embodiment provides a cutting device 10, including: an upper cutting blade assembly 100 and a lower cutting blade assembly 200. It should be noted that the cutting device 10 is used to cut the outer packaging (hereinafter, aluminum-plastic film is used as an example) of the side edge 21 of the curved battery cell to obtain a cut opening of the required shape.

[0034] like Figure 4 As shown, the lower cutter assembly 200 is mounted on the worktable 300. It includes a curved cell positioning part 201 adapted to the shape of the curved cell 20, and lower cutters 202 located on both sides of the cell positioning part 201. The lower cutter 202 has a first cutting part 203. The first cutting part 203 is located at a position corresponding to the required cutting position of the curved cell 20, and is constructed as a contour curve complementary to the second cutting part 102 in the upper cutter assembly 100. The height of the first cutting part 203 is such that after the curved cell 20 is mounted on the cell positioning part 201, the first cutting part 203 abuts against the side edge 21 of the curved cell from below.

[0035] like Figure 4 and Figure 5 As shown, the cell positioning part 201 is located on the upper part of the lower cutting blade assembly 200 and is an open slot for installing the curved cell 20. After the curved cell 20 is wrapped around the outer packaging edge, it is placed into the cell positioning part 201, and its edge will be slightly raised and protrude from the slot of the cell positioning part 201. Based on the shape of the curved battery cell 20, the battery cell positioning part 201 is designed to be curved to match the shape of the curved battery cell 20. This allows for precise positioning and stable clamping of the curved battery cell 20 after it is installed in the battery cell positioning part 201. For example, the radius of the curved battery cell 20 is generally between 8.8 mm and 11.65 mm. When the radius of the curved battery cell 20 is 8.8 mm, its inner arc length is 21.43 mm and its outer arc length is 23.7 mm. When the radius of the curved battery cell 20 is 11.65 mm, its inner arc length is 31.67 mm and its outer arc length is... The inner and outer arc lengths of the cell positioning part 201, which is 34.2 mm in diameter and matches the inner and outer arc lengths of the curved battery cells 20 with different radii, need to be adapted to the inner and outer arc lengths of the curved battery cells 20, so that the curved battery cells 20 are fixed on the cell positioning part 201. The lower cutter 202 is fixed on both sides of the cell positioning part 201, and the position of its first cutting part 203 corresponds to the position of the curved battery cell 20 that needs to be cut. There is a certain distance between the first cutting part 203 and the cell positioning part 201. This distance is related to the shape to be cut on the side edge of the curved battery cell 20, and can be between 0.5-1.5 mm. After the curved battery cell 20 is fixed on the cell positioning part 201, its first cutting part 203 can abut against the side edge 21 of the curved battery cell from below, forming a rigid support for the aluminum-plastic film on the side of the curved battery cell 20 during the cutting process, effectively suppressing the tendency of the aluminum-plastic film to deform under force.

[0036] like Figure 6 As shown, the upper cutting blade assembly 100 is mounted on the cutting drive mechanism and includes at least an upper cutting blade 101. The upper cutting blade 101 has a second cutting portion 102, which is configured as a contour curve adapted to the shape to be cut of the curved edge 21 of the battery cell side surface, and the position of the second cutting portion 102 is opposite to the first cutting portion 203. The cutting drive mechanism provides driving force to the cutting device 10 and can be a drive device found in existing automated battery production lines, employing motor drive, hydraulic drive, or pneumatic drive.

[0037] In specific implementation, such as Figure 4 As shown, the cell positioning part 201 has a groove structure, the depth of which matches the thickness of the main body of the curved cell 20. The outer side of the lower cutter 202 is provided with a vertical groove, which allows the cut material to be discharged smoothly.

[0038] It should be noted that the thickness of the main body of the curved battery cell 20 is generally between 0.93 mm and 1.35 mm, and the depth of the battery cell positioning part 201 (i.e. the depth of the groove structure) matches it, so that the main body of the curved battery cell 20 can be fixed within the battery cell positioning part 201.

[0039] like Figure 7 and Figure 8 As shown, in one embodiment, the upper cutting blade assembly 100 further includes an upper cutting blade clamping assembly 104 movably disposed within the hollow region 103 of the upper cutting blade assembly 100. The first bottom surface 105 of the upper cutting blade clamping assembly 104 facing the lower cutting blade assembly 200 is configured as a contoured curved surface complementary to the cell positioning portion 201. The first bottom surface 105 of the upper cutting blade clamping assembly 104 can fit against the cell positioning portion 201 to clamp the curved cell 20. The first bottom surface 105 protrudes beyond the hollow region 103 of the upper cutting blade assembly 100.

[0040] like Figure 6 As shown, in one embodiment, the upper cutter assembly 100 further includes an upper cutter side clamping block 106, with the upper cutter 101 located on opposite sides of the hollow region 103 of the upper cutter side clamping block 106; the second bottom surface 107 of the upper cutter side clamping block 106 facing the direction of the lower cutter assembly 200 is constructed as a contoured surface.

[0041] Furthermore, the upper cutter 101 and the upper cutter side clamping block 106 are fixed together as one unit.

[0042] In one embodiment, such as Figure 1As shown, the cutting device 10 also includes a compression spring 400; the compression spring 400 is partially housed in the hollow region 103 of the upper cutter assembly 100, and the two ends of the compression spring 400 are respectively connected to the upper cutter clamping assembly 104 and the execution component of the cutting drive mechanism for outputting power. The execution component of the cutting drive mechanism can be a drive shaft output by a rotary motor, a piston rod of a hydraulic cylinder, or a piston rod of a pneumatic cylinder.

[0043] In one embodiment, such as Figure 9 As shown, the cutting device 10 also includes a pressure bar assembly 500 fixed on the worktable 300; the pressure bar assembly 500 includes a pressure bar 501 and a pressure bar drive mechanism 502. The two ends of the pressure bar 501 are rotatably connected to the pressure bar drive mechanism 502. Before the cutting process, the pressure bar drive mechanism 502 drives the pressure bar 501 to rotate to press the curved battery cell 20 above the battery cell positioning part 201.

[0044] Specifically, the pressure rod driving mechanism 502 includes a pressure rod fixing seat 5021, a pressure rod rotating shaft 5022, and a pressure rod rotating arm 5023; the pressure rod rotating shaft 5022 is rotatably disposed in the pressure rod fixing seat 5021, and the pressure rod rotating arm 5023 is fixed to the pressure rod rotating shaft 5022 and driven by the pressure rod rotating shaft 5022; both ends of the pressure rod 501 are pivotally connected to the pressure rod rotating arm 5023; the pressure rod driving mechanism 502 drives the pressure rod 501 to rotate above the cell positioning part 201 by driving the pressure rod rotating shaft 5022.

[0045] like Figure 10 As shown, in one embodiment, the worktable 300 is provided with a lower cutter receiving groove 301. The lower cutter assembly 200 is fixed in the lower cutter receiving groove 301 by a fastening structure provided on the bottom surface of the lower cutter assembly 200. The shape of the lower cutter receiving groove 301 is adapted to the bottom surface contour of the lower cutter assembly 200 to form a positioning. A pressure rod assembly receiving groove 302 is also provided on one side end of the worktable 300. The shape of the pressure rod assembly receiving groove 302 is adapted to the bottom surface contour of the pressure rod fixing seat 5021 to form a positioning. The pressure rod fixing seat 5021 is fixed in the pressure rod assembly receiving groove 302.

[0046] It should be noted that the embodiments of this application adopt a modular design. When a product needs to be changed and different models of curved battery cells need to be cut, the operator only needs to replace the corresponding upper cutting blade assembly 100 and lower cutting blade assembly 200 to achieve rapid product changeover. By replacing them in a matching manner, it can be ensured that the second cutting part 102 and the first cutting part 203 always maintain a preset complementary alignment relationship, effectively maintaining the consistency of the cutting tool system, thereby ensuring the consistency of cutting accuracy after product changeover and avoiding cumulative errors that may be caused by separate assembly. At the same time, since the upper cutting blade assembly 100 and the lower cutting blade assembly 200 have been precisely aligned and debugged before leaving the factory, no mechanical adjustment or alignment calibration is required after replacement on site, which significantly simplifies the operation process and improves production efficiency. In addition, the bottom contour of the lower cutting blade assembly 200 can adopt a standardized interface design, and different models of lower cutting blade assemblies 200 can be stably matched with the lower cutting blade receiving groove 301 on the workbench 300 to achieve rapid positioning and installation, further improving the standardization and ease of operation of the equipment.

[0047] like Figure 11 and Figure 12 As shown, the specific operation process for cutting the aluminum-plastic film on the side edge 21 of the curved battery cell includes: The curved battery cell 20 is mounted on the battery cell positioning part 201 of the lower cutting blade assembly 200; The rotary pressure rod drive mechanism 502 drives the pressure rod 501 to rotate above the cell positioning part 201; The actuator of the cutting drive mechanism moves downward, and the upper cutter assembly 100 moves towards the lower cutter assembly 200 under the drive of the cutting drive mechanism. This causes the second cutting part 102 to cooperate with the first cutting part 203 to cut the side edge 21 of the curved battery cell, obtaining a cut of the desired shape on the side edge 21 of the curved battery cell. When the upper cutter assembly 100 moves towards the lower cutter assembly 200, the upper cutter clamping assembly 104 extends a certain distance due to the action of the compression spring 400, so that its first bottom surface 105 first adheres to and presses against the curved battery 20 installed in the battery cell positioning part 201. As the upper cutter assembly 100 moves downward, the compression spring 400 is compressed, thereby providing clamping force to the curved battery cell 20, so that the upper cutter clamping assembly 104 clamps the curved battery cell 20, so that the curved battery cell 20 is in a clamped, ready-to-be-cut state. After the upper cutting clamping assembly 104 clamps the curved battery cell 20, the actuator drives the upper cutting assembly 100 to continue moving downwards against the resistance of the compression spring 400. Under the condition that the upper cutting clamping assembly 104 clamps the curved battery cell 20, the upper cutting assembly 100 continues to move downwards to complete the cutting of the side edge 21 of the curved battery cell, and obtain the cut curved battery cell 30.

[0048] The drive actuator moves the upper cutter assembly 100 upward, and the rotating pressure rod drive mechanism 502 resets the pressure rod 501, allowing the cut curved battery cell 30 to be removed.

[0049] It should be noted that during the cutting process, the actuator of the cutting drive mechanism descends, and its end first compresses the compression spring 400. The compression spring 400 transmits pressure to the upper cutting blade clamping assembly 104, causing it to push out and thus contact the curved battery cell first, firmly pressing it onto the battery cell positioning part 201. This achieves stable and flexible clamping, avoids impact, and ensures that the curved battery cell 20 does not move during cutting. After the upper cutting blade clamping assembly 104 clamps the curved battery cell and can no longer move (is limited), the actuator continues to descend. Finally, the actuator directly applies power to the cutting action, causing the second cutting part 102 to cooperate with the fixed first cutting part 203 to complete the precision cutting of the aluminum-plastic film. The second cutting part 102 protrudes slightly from the second bottom surface 107 of the upper cutting blade side clamping block 106. When the execution component pushes the bottom plate 108 of the upper cutting blade assembly downward, the cutting process ends when the second cutting part 102 is in contact with the first cutting part 203. The inner edge of the second bottom surface 107 of the upper cutting blade side clamping block 106 is not completely in contact with the outer edge of the upper part of the lower cutting blade assembly 200.

[0050] In the cutting device of this embodiment, the second cutting portion 102 of the upper cutting blade assembly 100 is configured as a contour curve adapted to the shape to be cut of the side edge 21 of the curved battery cell, and the first cutting portion 203 of the lower cutting blade assembly 200 is configured as a contour curve complementary to the second cutting portion 102. This ensures that the two maintain optimal fit throughout the cutting process, so that the cutting trajectory is highly consistent with the shape of the pre-designed cut opening required for the curved battery cell 20. Furthermore, the two are mounted on a rigid component to ensure that they always maintain a preset, minimal gap (almost zero) during movement, and their positions correspond without misalignment. At the same time, the cutting drive mechanism controls the upper cutting blade assembly 100 to descend along a stable, vertical path, forming a precise relative movement with the fixed lower cutting blade assembly 200. Therefore, the second cutting part 102 and the first cutting part 203 can move and work together to achieve precise shearing and separation of the aluminum-plastic film. This cutting method has low cutting force, smooth and burr-free cross-section, and minimal damage to the material, thus obtaining a cut with smooth edges and consistent shape. Therefore, the cutting device of this embodiment accurately fixes the curved battery cell through the battery cell positioning part 201, and utilizes the first cutting part 203 and the second cutting part 102, which are two complementary and highly aligned contoured curves, to make relative linear movements under the drive of the cutting drive mechanism, thereby generating a pure shearing action on the aluminum-plastic film and achieving high-quality, damage-free cutting.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A cutting device, characterized in that, include: Upper cutter assembly, lower cutter assembly; The lower cutting blade assembly is mounted on the worktable and includes a curved cell positioning part adapted to the shape of the curved cell, and lower cutting blades located on both sides of the cell positioning part. The lower cutting blade has a first cutting part, which is located at a position corresponding to the required cutting position of the curved cell and is constructed as a contour curve complementary to the second cutting part in the upper cutting blade assembly. The height of the first cutting part is such that after the curved cell is installed in the cell positioning part, the first cutting part abuts against the side edge of the curved cell from below. The upper cutting blade assembly includes at least an upper cutting blade, which has a second cutting portion. The second cutting portion is configured as a contour curve that adapts to the shape to be cut on the side edge of the curved battery cell, and the position of the second cutting portion is opposite to the first cutting portion. The first cutting portion and the second cutting portion can cooperate with each other to complete the cutting of the side edge of the curved battery cell.

2. The cutting device according to claim 1, characterized in that, The cell positioning part is a groove structure, the depth of which matches the thickness of the curved cell body.

3. The cutting device according to claim 1, characterized in that, The outer side of the lower cutter is provided with a vertical groove.

4. The cutting device according to claim 1, characterized in that, The upper cutting blade assembly further includes an upper cutting blade clamping component movably disposed in the hollow area of ​​the upper cutting blade assembly. The first bottom surface of the upper cutting blade clamping component facing the lower cutting blade assembly is constructed as a contoured curved surface complementary to the cell positioning part. The first bottom surface of the upper cutting blade clamping component can fit against the cell positioning part so that the upper cutting blade clamping component clamps the curved cell.

5. The cutting device according to claim 1, characterized in that, The upper cutter assembly also includes an upper cutter side clamping block, with the upper cutter located on opposite sides of the hollow region of the upper cutter side clamping block; the second bottom surface of the upper cutter side clamping block facing the lower cutter assembly is constructed as a contoured curved surface.

6. The cutting device according to claim 5, characterized in that, The upper cutter and the side clamping block of the upper cutter are fixed together as one unit.

7. The cutting device according to claim 4, characterized in that, Also includes: Compression spring; The compression spring is partially housed within the hollow region of the upper cutter assembly and is connected to the upper cutter clamping assembly.

8. The cutting device according to claim 1, characterized in that, It also includes a pressure rod assembly fixed to the worktable; the pressure rod assembly includes a pressure rod and a pressure rod driving mechanism, and the two ends of the pressure rod are rotatably connected to the pressure rod driving mechanism. Before the cutting process, the pressure rod drive mechanism drives the pressure rod to rotate above the cell positioning part to press the curved cell.

9. The cutting device according to claim 8, characterized in that, The pressure rod drive mechanism includes a pressure rod fixing seat, a pressure rod rotating shaft, and a pressure rod rotating arm; The pressure rod rotating shaft is rotatably disposed within the pressure rod fixing seat, and the pressure rod rotating arm is fixed to the pressure rod rotating shaft and driven by the pressure rod rotating shaft; The two ends of the pressure rod are pivotally connected to the pressure rod rotating arm; The pressure rod driving mechanism drives the pressure rod rotation shaft, causing the pressure rod to rotate above the cell positioning part.

10. The cutting device according to claim 1, characterized in that, The workbench is provided with a lower cutter receiving groove. The lower cutter assembly is fixed in the lower cutter receiving groove by a fastening structure provided on the bottom surface of the lower cutter assembly.

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