Battery shell cutting device

By using a double fastening connection of bolts and nuts, and a clamping mechanism with threaded rods and hinges, the problems of cumbersome tool replacement and low cutting efficiency in existing technologies are solved. This enables quick replacement of the cutting tool and stable clamping of the battery casing, improving cutting accuracy and safety.

CN224073483UActive Publication Date: 2026-04-03ZHEJIANG BOEN POWER MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The use of more wear-resistant tool materials and carbide tools in existing technologies to cut battery casings increases manufacturing costs, and the process of replacing worn tools is cumbersome, resulting in low work efficiency.

Method used

The cutting blade is connected using a double fastening method of bolts and nuts, combined with a clamping mechanism featuring a threaded rod and hinge design, enabling quick blade replacement and stable clamping of irregular battery casings.

Benefits of technology

It enables quick replacement of the cutting blade and stable clamping of the battery casing, improving cutting accuracy and safety, and reducing the time cost of replacing the blade.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery shell cutting, and discloses a battery shell cutting device which comprises a bottom plate, a sliding rail is fixedly connected to the bottom of the inner side of the bottom plate, a fixing block is fixedly connected to the top of the sliding rail, and telescopic rods are fixedly connected to the left side and the right side of the fixing block. Two telescopic rods are fixedly connected to the top of the bottom plate, sliding blocks are fixedly connected to the sides, away from each other, of the two telescopic rods, a fixing frame is fixedly connected to the rear side of the top of the bottom plate, a connecting plate is fixedly connected to the top of the inner side of the fixing frame, a plurality of bolts are in threaded connection to the top of the fixing frame, and the bottom ends of the bolts penetrate through the top of the connecting plate. According to the utility model, the connecting plate is connected with the fixing frame through the bolt and the nut, and the connecting plate and the cutting knife can be conveniently taken down and replaced together only by unscrewing the nut and taking down the bolt when the cutting knives with different specifications need to be replaced due to the change of cutting requirements subsequently, so that the cutting knife can be rapidly replaced.
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Description

Technical Field

[0001] This utility model relates to the field of battery casing cutting technology, and in particular to a battery casing cutting device. Background Technology

[0002] A battery casing cutting device is a piece of equipment used to cut and process battery casings. It uses a mechanical cutter to directly contact the battery casing material and cut the material with the sharp edge of the cutter to cut the battery casing into the required shape and size. This method is suitable for battery casings made of plastic with low hardness or thin metal.

[0003] During the cutting process, the cutting tool comes into direct contact with the battery casing material, especially when cutting materials with high hardness. This causes the tool to wear down, requiring regular replacement, which increases production costs and downtime. Current technologies, such as the development and use of more wear-resistant tool materials and cemented carbide tools, offer advantages such as high hardness and wear resistance, enabling them to withstand higher cutting forces and temperatures and extending tool life. Ceramic tools, on the other hand, have even higher hardness and heat resistance, maintaining good edge sharpness during cutting. However, in practical use, using more wear-resistant tool materials and cemented carbide tools with high hardness to cut battery casings not only increases manufacturing costs but also results in tool wear over long-term use. Replacing the tool requires disassembling too many parts, leading to prolonged disassembly time and reduced work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a battery casing cutting device, which aims to improve the existing technology that uses more wear-resistant tool materials and carbide tools with high hardness to cut battery casings. This not only increases manufacturing costs, but the tools will also wear out after long-term use. Replacing the tools requires the removal of too many parts, resulting in long disassembly time and reduced work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a battery casing cutting device, comprising a base plate, a slide rail fixedly connected to the bottom inner side of the base plate, a fixing block fixedly connected to the top of the slide rail, telescopic rods fixedly connected to the left and right sides of the fixing block, sliders fixedly connected to the opposite sides of the two telescopic rods, a fixing frame fixedly connected to the rear top of the base plate, a connecting plate fixedly connected to the top inner side of the fixing frame, multiple bolts threadedly connected to the top of the fixing frame, the bottom ends of the multiple bolts penetrating the top of the connecting plate, and multiple nuts threadedly connected to the bottom ends of the multiple bolts, two fixing plates fixedly connected to the left and right sides of the bottom of the connecting plate, the same cutting blade rotatably connected inside the two fixing plates, support plates fixedly connected to the top of the two sliders, clamping plates fixedly connected between adjacent support plates, and clamping mechanisms provided on the opposite sides of the two support plates, the clamping mechanisms being able to clamp battery casings of different shapes.

[0006] As a further description of the above technical solution:

[0007] The clamping mechanism includes multiple threaded rods, which are threadedly connected to each other on opposite sides of two support plates. Each of the opposite sides of the two support plates has two threaded holes. The outer walls of the multiple threaded rods are threaded into the interior of the threaded holes. Each of the opposite sides of the two clamping plates has two hinges fixedly connected. Clamping plates are fixedly connected to the right side of the two hinges on the left and the left side of the two hinges on the right. Anti-slip tubes are fixedly connected between the multiple clamping plates and the adjacent clamping plates.

[0008] As a further description of the above technical solution:

[0009] A control panel is fixedly connected to the top front left end of the base plate, and multiple buttons are fixedly connected to the top of the control panel.

[0010] As a further description of the above technical solution:

[0011] A lamp holder is fixedly connected to the top front right end of the base plate, and a lighting lamp is rotatably connected to the top of the lamp holder.

[0012] As a further description of the above technical solution:

[0013] Each of the bolts has a washer fixedly connected to the lower part of its outer wall, and the outer walls of the washer are designed to be rounded.

[0014] As a further description of the above technical solution:

[0015] Support columns are fixedly connected to the four corners of the bottom of the base plate, and anti-slip pads are fixedly connected to the bottom of each of the support columns.

[0016] As a further description of the above technical solution:

[0017] The bottoms of the two sliders are equidistantly connected to the top left and right sides of the slide rail, and both sliders adopt a symmetrical design.

[0018] As a further description of the above technical solution:

[0019] The outer walls of the multiple threaded rods all match the interior of the threaded holes, and the multiple hinges all adopt an equidistant design.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the cutting blade is installed at the bottom of the connecting plate. The connecting plate is connected to the fixing frame by a double fastening method of bolts and nuts. When cutting is required, the cutting blade is in working state. If the cutting needs change and a different specification of cutting blade needs to be replaced, simply loosen the nut and remove the bolt to easily remove the connecting plate and the cutting blade together for replacement, thereby realizing the ability to quickly replace the cutting blade.

[0022] 2. In this utility model, the manually rotated threaded rod can move flexibly within the corresponding threaded hole. The hinge on the outside of the clamping plate is connected to the clamping plate. When the threaded rod rotates inward to squeeze the clamping plate, the clamping plate can rotate around the hinge as its axis, tightly fitting and wrapping irregular battery blocks of different shapes. Furthermore, the anti-slip tube on the contact surface increases friction, ensuring the stability of the battery block throughout the cutting process and improving cutting accuracy and safety. Attached Figure Description

[0023] Figure 1 This is a perspective view of a battery casing cutting device proposed in this utility model;

[0024] Figure 2 This is a front view of a battery casing cutting device proposed in this utility model;

[0025] Figure 3 This is a right view of a battery casing cutting device proposed in this utility model;

[0026] Figure 4 This is an exploded view of the bolts in a battery casing cutting device proposed in this utility model;

[0027] Figure 5 This is an exploded view of the threaded rod of a battery casing cutting device proposed in this utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Clamping mechanism; 201. Threaded hole; 202. Threaded rod; 203. Hinge; 204. Clamping plate; 205. Anti-slip tube; 3. Slide rail; 4. Fixing block; 5. Telescopic rod; 6. Slider; 7. Fixing frame; 8. Connecting plate; 9. Bolt; 10. Nut; 11. Fixing plate; 12. Cutting blade; 13. Support plate; 14. Clamping plate; 15. Control panel; 16. Button; 17. Lamp holder; 18. Lighting lamp; 19. Gasket; 20. Support column; 21. Anti-slip mat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a battery casing cutting device, comprising a base plate 1, a slide rail 3 fixedly connected to the bottom inner side of the base plate 1, a fixing block 4 fixedly connected to the top of the slide rail 3, telescopic rods 5 fixedly connected to the left and right sides of the fixing block 4, and sliders 6 fixedly connected to the opposite sides of the two telescopic rods 5. The telescopic rods 5 push the sliders 6 to move left and right on the slide rail 3. A fixing frame 7 is fixedly connected to the rear top of the base plate 1, and a connecting plate 8 is fixedly connected to the top inner side of the fixing frame 7. Multiple bolts 9 are threadedly connected to the top of the fixing frame 7, and the bottom ends of the multiple bolts 9 penetrate the top of the connecting plate 8. The connecting plate 8 is fixed to the top inner side of the fixing frame 7 by the bolts 9. Multiple nuts 10 are threaded onto each end of the connecting plate 8 to secure it and facilitate quick replacement of the cutting blade 12. Two fixing plates 11 are fixedly connected to the bottom left and right sides of the connecting plate 8. The same cutting blade 12 is rotatably connected inside the two fixing plates 11 for cutting the battery casing. Support plates 13 are fixedly connected to the top of the two sliders 6. Clamping plates 14 are fixedly connected between adjacent support plates 13. When the slider 6 moves left and right on the slide rail 3, it will drive the support plates 13 and clamping plates 14 to move left and right, which can clamp battery casings of different sizes. Clamping mechanisms 2 are provided on the opposite sides of the two support plates 13. Clamping mechanisms 2 can clamp battery casings of different shapes.

[0032] Specifically, a slide rail 3 is fixedly connected to the bottom inner side of the base plate 1, and the top of the slide rail 3 is tightly connected to the fixing block 4. Telescopic rods 5 are fixedly installed on the left and right sides of the fixing block 4, extending in opposite directions. Their ends are each fixedly connected to a slider 6. When the telescopic rods 5 are activated, they powerfully push the slider 6 to slide smoothly left and right on the slide rail 3. A fixing frame 7 stands on the top rear side of the base plate 1. The top inner side of the fixing frame 7 is securely connected to the connecting plate 8 by multiple bolts 9. These bolts 9 penetrate the top of the connecting plate 8 from top to bottom, and multiple nuts 10 are then tightened at the bottom of the bolts 9. This double-tightening method ensures that the connecting plate 8 is fixed to the top inner side of the fixing frame 7, facilitating the quick replacement of the cutting blade 12. When it is necessary to replace the cutting blade 12 with a different specification, it is convenient to quickly replace it. For different cutting needs, simply loosen the nut 10 and unscrew the bolt 9 to easily remove the connecting plate 8 and the cutting blade 12 connected to its bottom. Two fixing plates 11 are fixedly connected to the left and right sides of the bottom of the connecting plate 8. The same cutting blade 12 is rotatably connected between the two fixing plates 11. The tops of the two sliders 6 are fixedly connected to the support plate 13. The opposite side of the two support plates 13 is fixedly connected to the clamping plate 14. When the slider 6 is pushed by the telescopic rod 5 to move left and right on the slide rail 3, it will synchronously drive the support plate 13 and the clamping plate 14 to move together. This allows the clamping plate 14 to flexibly clamp battery shells of different sizes, greatly improving the applicability of the cutting device to various battery shells and ensuring that the battery shell can be stably fixed during the cutting process, thereby ensuring the cutting accuracy and quality.

[0033] Reference Figure 5 The clamping mechanism 2 includes multiple threaded rods 202, which are threadedly connected to each other on the opposite side of two support plates 13. Each of the opposite sides of the two support plates 13 has two threaded holes 201. The outer walls of the multiple threaded rods 202 are threadedly connected to the inside of the threaded holes 201. The threaded rods 202 can rotate inside the threaded holes 201 and can move left and right. Each of the opposite sides of the two clamping plates 14 has two hinges 203 fixedly connected. The right side of the two left hinges 203 and the left side of the two right hinges 203 are fixedly connected to clamping plates 204. When the threaded rods 202 move inward, they will squeeze the clamping plates 204. The clamping plates 204 rotate through the hinges 203 to clamp the irregular battery block. Anti-slip tubes 205 are fixedly connected between the multiple clamping plates 204 and the adjacent sides of the two clamping plates 14 to increase the friction during clamping.

[0034] Specifically, two threaded holes 201 are respectively opened on the opposite sides of the two support plates 13. The outer walls of multiple threaded rods 202 are precisely matched with the threaded holes 201, achieving a tight engagement through threaded connection. When the operator rotates the threaded rods 202, based on the transmission principle of the thread, the threaded rods 202 can move smoothly left and right within the threaded holes 201. Two hinges 203 are fixedly connected on the opposite sides of the two clamping plates 14. The hinges 203 are respectively connected to the corresponding clamping plates 204. The hinge 203 on the left side is connected to the clamping plate 204 on the left side. When the grooved rod 202 moves inward, its end will press against the clamping plate 204. Due to the rotatable nature of the hinge 203, the clamping plate 204 rotates around the hinge 203 as an axis, thereby achieving a tight clamping of the irregular battery block. In order to prevent the battery block from sliding during the clamping process, anti-slip tubes 205 are fixedly connected to the adjacent contact surfaces of multiple clamping plates 204 and two clamping plates 14. These anti-slip tubes 205 greatly increase the friction during clamping, ensuring that the battery block remains stable during the cutting process, effectively improving the cutting accuracy and safety.

[0035] Reference Figure 1 and Figure 2 A control panel 15 is fixedly connected to the top front left end of the base plate 1. Multiple buttons 16 are fixedly connected to the top of the control panel 15 for controlling the device. A lamp holder 17 is fixedly connected to the top front right end of the base plate 1. An illumination lamp 18 is rotatably connected to the top of the lamp holder 17 to increase the brightness of the working area. Washers 19 are fixedly connected to the lower middle part of the outer wall of multiple bolts 9. The outer wall of multiple washers 19 adopts a smooth design to prevent the nuts 10 from being tightened.

[0036] Specifically, the control panel 15 is fixed to the top front left end of the base plate 1. The multiple buttons 16 arranged on the top of the control panel 15 are responsible for controlling the operation of the entire device. The operator can easily control the start and stop of the equipment and adjust the parameters. On the right side of the lamp holder 17, the rotating connected lighting lamp 18 can flexibly adjust the angle to dispel the darkness in the working area and greatly improve the visibility during cutting operations. The gaskets 19 on the lower part of the outer wall of the multiple bolts 9 cleverly prevent the nuts 10 from being tightened by the smooth outer wall, ensuring the convenience of device maintenance.

[0037] Reference Figure 1 , Figure 2 and Figure 5 Support columns 20 are fixedly connected to the four corners of the bottom of the base plate 1. Anti-slip pads 21 are fixedly connected to the bottom of the multiple support columns 20 to prevent the device from moving when it is started. The bottoms of the two sliders 6 are equidistantly slidably connected to the top left and right sides of the slide rail 3. The two sliders 6 are symmetrically designed. The outer walls of the multiple threaded rods 202 are matched with the inside of the threaded holes 201. The multiple hinges 203 are equidistantly designed.

[0038] Specifically, support columns 20 are connected to the four corners of the bottom of the base plate 1. The anti-slip pads 21 at the bottom of the support columns 20 can effectively increase the friction between the device and the ground, prevent displacement when the device is started and operated, and ensure smooth operation. The bottoms of the two sliders 6 slide at equal distances to the top left and right sides of the slide rail 3. The symmetrical design ensures that the force is balanced and the operation is stable when moving. Multiple threaded rods 202 are precisely matched with threaded holes 201. The hinges 203 adopt an equidistant design to ensure the accuracy and efficiency of the coordinated operation of the various components of the device.

[0039] Working principle: When the telescopic rod 5 is activated, the thrust generated by it will act on the slider 6 connected to it. Since the bottom of the slider 6 is slidably connected to the slide rail 3, the slider 6 can slide smoothly left and right along the slide rail 3 under the push of the telescopic rod 5. The support plate 13 connected to the top of the slider 6 and the clamping plate 14 on the support plate 13 will also move accordingly. By adjusting the position of the clamping plate 14, battery shells of different sizes can be flexibly clamped to complete the fixing step of the battery shell. The cutting blade 12 is installed at the bottom of the connecting plate 8. The connecting plate 8 is connected to the fixing frame 7 by the double fastening method of bolts 9 and nuts 10. When cutting is required, the cutting blade 12 is in working state. If the cutting requirements change and a different specification of cutting blade 12 needs to be replaced, simply loosen the nut 10 and remove the bolt 9 to easily remove and replace the connecting plate 8 and the cutting blade 12 together. During the entire cutting process, the battery shell, which is stably fixed by the clamping plate 14, is precisely cut under the action of the cutting blade 12, ensuring cutting accuracy and quality.

[0040] Furthermore, when the operator manually rotates the threaded rod 202, based on the thread transmission principle, the threaded rod 202 moves left and right within the threaded hole 201. This direction of movement can be flexibly adjusted according to actual clamping requirements. Two hinges 203 are fixed on the side of the two clamping plates 14 away from the battery block, and each hinge 203 is connected to a clamping plate 204. When the threaded rod 202 is rotated inward so that its end contacts and presses against the clamping plate 204, the clamping plate 204 rotates around the hinge 203 as its axis because the hinge 203 has rotatable characteristics. Irregular battery blocks of different shapes can be tightly wrapped and fitted by the clamping plate 204, ensuring that the battery blocks will not slip during the cutting process. Anti-slip tubes 205 are installed on the surfaces of the clamping plate 204, clamping plate 14, and battery block that contact each other. These anti-slip tubes 205 increase friction, keeping the battery block stable throughout the cutting process, effectively avoiding cutting deviations caused by battery block displacement, and significantly improving the accuracy and safety of the cutting operation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery casing cutting apparatus comprising a base plate (1) characterised in that: The inner side bottom of the bottom plate (1) is fixedly connected with a sliding rail (3), the top of the sliding rail (3) is fixedly connected with a fixed block (4), the left and right sides of the fixed block (4) are fixedly connected with telescopic rods (5), the sides away from each other of the two telescopic rods (5) are fixedly connected with sliding blocks (6), the top rear side of the bottom plate (1) is fixedly connected with a fixed frame (7), the inner top of the fixed frame (7) is fixedly connected with a connecting plate (8), the top of the fixed frame (7) is threadedly connected with a plurality of bolts (9), the bottom ends of the plurality of bolts (9) penetrate through the top of the connecting plate (8), the bottom ends of the plurality of bolts (9) are threadedly connected with a plurality of nuts (10), the bottom left and right sides of the connecting plate (8) are fixedly connected with two fixed plates (11), the interiors of the two fixed plates (11) are rotatably connected with the same cutting knife (12), the tops of the two sliding blocks (6) are fixedly connected with support plates (13), the adjacent between the two support plates (13) are fixedly connected with clamping plates (14), the sides away from each other of the two support plates (13) are provided with clamping mechanisms (2), and the clamping mechanisms (2) can clamp different shapes of battery shells.

2. The battery case cutting apparatus according to claim 1, wherein: The clamping mechanism (2) comprises a plurality of threaded rods (202), the adjacent between the plurality of threaded rods (202) are threadedly connected on the sides away from each other of the two support plates (13), the sides away from each other of the two support plates (13) are provided with two threaded holes (201), the outer walls of the plurality of threaded rods (202) are threadedly connected in the interiors of the threaded holes (201), the sides away from each other of the two clamping plates (14) are fixedly connected with two hinges (203), the right sides of the left two hinges (203) and the left sides of the right two hinges (203) are fixedly connected with clamping plates (204), the adjacent between the plurality of clamping plates (204) and the two clamping plates (14) are fixedly connected with anti-skid tubes (205).

3. The battery case cutting apparatus according to claim 1, wherein: The top front left end of the bottom plate (1) is fixedly connected with a control table (15), and the top of the control table (15) is fixedly connected with a plurality of buttons (16).

4. The battery case cutting apparatus according to claim 1, wherein: The top front right end of the bottom plate (1) is fixedly connected with a lamp holder (17), and the top of the lamp holder (17) is rotatably connected with an illuminating lamp (18).

5. The battery case cutting apparatus according to claim 1, wherein: The outer walls of the plurality of bolts (9) are fixedly connected with gaskets (19), and the outer walls of the plurality of gaskets (19) are designed to be round and smooth.

6. The battery case cutting apparatus according to claim 1, wherein: The bottom of the bottom plate (1) is fixedly connected with support columns (20) at four corners, and the bottoms of the plurality of support columns (20) are fixedly connected with anti-skid pads (21).

7. The battery case cutting apparatus according to claim 1, wherein: The bottoms of the two sliding blocks (6) are equidistantly and slidably connected on the top left and right sides of the sliding rail (3), and the two sliding blocks (6) are designed to be symmetrical.

8. The battery case cutting apparatus according to claim 2, wherein: The outer walls of the plurality of threaded rods (202) are matched with the interiors of the threaded holes (201), and the plurality of hinges (203) are designed to be equidistant.