Lithium battery high-precision die cutting equipment

Abstract

The utility model discloses lithium battery high-precision die cutting equipment which comprises a working table, a cutting groove is formed in the working table, a containing table is fixedly connected to the top of the working table, a bottom hole is formed in the containing table, an upper filter screen is fixedly connected to the interior of the bottom hole, and an air box is fixedly connected to the bottom of the working table. A vacuumizing pump is fixedly connected to the bottom of the air box, and a back plate is fixedly connected to the rear side wall of the workbench. Through the arrangement of the workbench, the cutting groove, the placement table, the back plate, the top plate, the electric hydraulic rod, the upper mold, an inner sleeve, an inner spring, a lower column, a pressing plate, a cutter, an inner groove and abrasive paper, the tab is placed on the placement table, then the electric hydraulic rod is started, under the action of the pressing plate, the cut edge of the tab cannot deform, and after cutting is completed, the cutting edge of the tab is cut. And the abrasive paper on the upper die can directly polish the cutting part, so that burrs are removed, and the machining precision and the production efficiency of the tab are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field, concretely is lithium battery high accuracy die cutting equipment. BACKGROUND

[0002] The tab is a metal conductor that leads the positive and negative current collectors out of the lithium battery, and its forming process is the process of accurately cutting the conductor on the positive and negative current collectors, which is usually regarded as a pre-step of the winding or laminating process. This process plays a crucial role in the manufacture of power batteries and some consumer electronic batteries. The tab processing requires the use of die cutting equipment.

[0003] In the existing lithium battery tab die cutting equipment, burrs are generated at the cutting position during die cutting, and small deformations are also easily generated near the cutting position, which not only reduces the precision of the tab, but also requires subsequent polishing treatment of the burrs, reducing the production efficiency of the tab. UTILITY MODEL CONTENT

[0004] The utility model discloses a lithium battery high accuracy die cutting equipment, the tab is placed on the placing table, the vacuum pump can form the negative pressure area below the tab piece, so that the tab piece is stably fixed on the placing table, the stability during processing is improved, then the electric hydraulic rod is started, under the action of the pressing plate, the cutting edge of the tab can not be deformed, and after cutting is completed, the sandpaper on the upper die can directly polish the cutting position, so that the burrs are removed, the processing precision and production efficiency of the tab are improved.

[0005] To achieve the above-mentioned purpose, a lithium battery high accuracy die cutting equipment is provided, which comprises: a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected inside the bottom hole, a gas tank is fixedly connected to the bottom of the workbench, a vacuum pump is fixedly connected to the bottom of the gas tank, a back plate is fixedly connected to the rear wall of the workbench, a top plate is fixedly connected to the top of the back plate, an electric hydraulic rod is fixedly connected to the bottom of the top plate, an upper die is fixedly connected to the bottom of the electric hydraulic rod, an inner sleeve is fixedly connected to the inner top surface of the upper die, an inner spring is arranged inside the inner sleeve, a lower column is fixedly connected to the bottom of the inner spring, a pressing plate is fixedly connected to the bottom of the lower column, a cutter is fixedly connected to the bottom of the upper die, an inner groove is arranged on the inner side wall of the upper die, and a sandpaper is clamped in the inner groove.

[0006] According to the lithium battery high accuracy die cutting equipment, the inner groove is in the shape of "Ω", and the pressing plate is located below the inner groove.

[0007] The bottom hole and the air tank are in communication, and the input end of the vacuum pump is in communication with the air tank.

[0008] The placing table is located on the inner side of the cutting groove, and the cutter is located above the cutting groove.

[0009] The inner sleeve, the inner spring and the lower column are uniformly distributed above the pressing plate, and the top of the inner spring is fixedly connected with the upper die.

[0010] The pressing plate is located in the inner side of the cutter.

[0011] The top of the lower column is located in the inner side of the inner sleeve, and the top of the lower column and the bottom of the inner sleeve are provided with limiting structures.

[0012] The bottom of the workbench is fixedly connected with a plurality of supporting columns which are uniformly distributed at the four corners of the bottom of the workbench.

[0013] Compared with the prior art, the lithium battery high-precision die cutting equipment has the advantages that:

[0014] 1. The lithium battery high-precision die cutting equipment comprises a workbench, a cutting groove, a placing table, a back plate, a top plate, an electric hydraulic rod, an upper die, an inner sleeve, an inner spring, a lower column, a pressing plate, a cutter, an inner groove and sandpaper.

[0015] 2. The lithium battery high-precision die cutting equipment comprises a placing table, a bottom hole, an upper filter screen, an air tank and a vacuum pump.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and examples.

[0018] Figure 1The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure.

[0019] Figure 2 The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure.

[0020] Figure 3 The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure.

[0021] Figure 4 The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure.

[0022] The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure. Specific implementation

[0023] The utility model discloses a high-precision die cutting equipment for lithium battery, which comprises a workbench, a cutting groove is arranged on the workbench, a placing table is fixedly connected to the top of the workbench, the placing table is located on the inner side of the cutting groove, a bottom hole is arranged on the placing table, an upper filter screen is fixedly connected in the bottom hole, the upper filter screen is used for filtering sundries to avoid entering a gas tank, the bottom of the workbench is fixedly connected with the gas tank, the bottom of the gas tank is fixedly connected with a vacuum pump, the number of the bottom holes and the upper filter screens is multiple, and the bottom holes and the upper filter screens are evenly distributed on the placing table, the bottom hole is through the gas tank, the input end of the vacuum pump is through the gas tank, when the vacuum pump is started, a negative pressure area is formed below the tab, and the tab can be stably fixed on the placing table under the action of atmospheric pressure.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme: high-precision die cutting equipment for lithium battery, include: workbench 1, be provided with cutting groove 2 on workbench 1, the top fixed connection of workbench 1 has placing table 3, placing table 3 is located in the inner side of cutting groove 2, placing table 3 is provided with bottom hole 4, the inside fixed connection of bottom hole 4 has upper filter screen 5, for filtering sundries, avoid entering gas tank 6, the bottom fixed connection of workbench 1 has gas tank 6, the bottom fixed connection of gas tank 6 has vacuum pump 7, the number of bottom hole 4, upper filter screen 5 is provided with multiple, and evenly distributes on placing table 3, bottom hole 4 is through gas tank 6, the input end of vacuum pump 7 is through gas tank 6, when starting vacuum pump 7, can form negative pressure area below tab, under the action of atmospheric pressure, can be tab stable fixed on placing table 3.

[0025] A back plate 8 is fixedly connected to the rear side wall of the workbench 1. A top plate 9 is fixedly connected to the top of the back plate 8. An electro-hydraulic rod 10 is fixedly connected to the bottom of the top plate 9. An upper mold 11 is fixedly connected to the bottom of the electro-hydraulic rod 10. An inner sleeve 12 is fixedly connected to the inner top surface of the upper mold 11. An inner spring 13 is installed inside the inner sleeve 12. A lower column 14 is fixedly connected to the bottom of the inner spring 13. The top of the lower column 14 is located inside the inner sleeve 12. Limiting structures are provided at the top of the lower column 14 and the bottom of the inner sleeve 12. A pressure plate 15 is fixedly connected to the bottom of the lower column 14. Multiple inner sleeves 12, inner springs 13, and lower columns 14 are provided and are evenly distributed above the pressure plate 15. The top of the inner spring 13 is fixedly connected to the upper mold 11. The pressure plate 15 is located inside the upper mold 11 and inside the tool 16. On the side, a cutter 16 is fixedly connected to the bottom of the upper mold 11. The cutter 16 is located above the cutting groove 2. An inner groove 17 is provided on the inner wall of the upper mold 11. The inner groove 17 is shaped like an "Ω". The pressure plate 15 is located below the inner groove 17. Sandpaper 18 is inserted inside the inner groove 17. When the electric hydraulic rod 10 is activated, the upper mold 11 is pushed down. During the downward movement, the pressure plate 15 first flattens the top of the electrode tab and keeps it flat. The cutter 16 cuts the edge of the electrode tab. The upper mold 11 continues to move down. The pressure plate 15 continuously presses the electrode tab under the action of the inner sleeve 12, the inner spring 13 and the lower column 14. The sandpaper 18 in the inner groove 17 polishes the cutting position of the electrode tab to remove burrs. Then the electric hydraulic rod 10 is retracted, the upper mold 11 moves up, and the sandpaper 18 polishes the cutting position again in the opposite direction to further remove burrs.

[0026] The bottom of the workbench 1 is fixedly connected to a support column 19. There are multiple support columns 19, which are evenly distributed at the four corners of the bottom of the workbench 1.

[0027] Working principle: The electrode tab is placed on the placement platform 3, and then the vacuum pump 7 is started to form a negative pressure zone below the electrode tab. Under the action of atmospheric pressure, the electrode tab can be stably fixed on the placement platform 3. Then, the electric hydraulic rod 10 is started to push the upper mold 11 down. During the downward movement, the pressure plate 15 first flattens the top of the electrode tab to keep it flat. The cutter 16 cuts the edge of the electrode tab. The upper mold 11 continues to move down. The pressure plate 15 continuously presses the electrode tab under the action of the inner sleeve 12, the inner spring 13 and the lower column 14. The sandpaper 18 in the inner groove 17 polishes the cut position of the electrode tab to remove burrs. Then the electric hydraulic rod 10 is retracted, the upper mold 11 moves up, and the sandpaper 18 polishes the cut position again in the opposite direction to further remove burrs, completing the deburring operation and improving the processing accuracy and production efficiency of the electrode tab.

[0028] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.

Claims

1. High-precision die-cutting equipment for lithium batteries, including: A workbench (1), characterized in that a cutting groove (2) is provided on the workbench (1), a placement platform (3) is fixedly connected to the top of the workbench (1), a bottom hole (4) is provided on the placement platform (3), an upper filter screen (5) is fixedly connected inside the bottom hole (4), an air box (6) is fixedly connected to the bottom of the workbench (1), a vacuum pump (7) is fixedly connected to the bottom of the air box (6), a back plate (8) is fixedly connected to the rear side wall of the workbench (1), a top plate (9) is fixedly connected to the top of the back plate (8), and a bottom plate (9) is fixedly connected to the bottom of the top plate (9). An electric hydraulic rod (10) is fixedly connected to an upper mold (11) at its bottom. An inner sleeve (12) is fixedly connected to the inner top surface of the upper mold (11). An inner spring (13) is provided inside the inner sleeve (12). A lower column (14) is fixedly connected to the bottom of the inner spring (13). A pressure plate (15) is fixedly connected to the bottom of the lower column (14). A cutting tool (16) is fixedly connected to the bottom of the upper mold (11). An inner groove (17) is provided on the inner side wall of the upper mold (11). Sandpaper (18) is snapped into the inner groove (17).

2. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The inner groove (17) is Ω-shaped, and the pressure plate (15) is located below the inner groove (17).

3. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The bottom hole (4) and the upper filter screen (5) are provided in multiple quantities and are evenly distributed on the placement platform (3). The bottom hole (4) is connected to the air box (6), and the input end of the vacuum pump (7) is connected to the air box (6).

4. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The placement platform (3) is located inside the cutting groove (2), and the cutting tool (16) is located above the cutting groove (2).

5. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The inner sleeve (12), inner spring (13) and lower column (14) are provided in multiple quantities and are evenly distributed above the pressure plate (15). The top of the inner spring (13) is fixedly connected to the upper mold (11).

6. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The pressure plate (15) is located inside the upper mold (11) and inside the cutter (16).

7. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The top of the lower column (14) is located inside the inner sleeve (12), and both the top of the lower column (14) and the bottom of the inner sleeve (12) are provided with limit structures.

8. The high-precision die-cutting equipment for lithium batteries as described in claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a support column (19), and the number of the support columns (19) is set to be multiple and evenly distributed at the four corners of the bottom of the workbench (1).

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