Edge cutting equipment for battery shell

Abstract

The utility model relates to the technical field of battery shell processing, in particular to battery shell edge cutting equipment which comprises a base, a linear driving device, a rotary driving device, a mounting column, an inner supporting cover, a mounting frame and a cutter, and the linear driving device, the rotary driving device, the mounting column, the inner supporting cover, the mounting frame and the cutter are arranged on the base. The inner supporting cover sleeves the top end of the mounting column and is detachably and fixedly connected with the mounting column through a connecting piece, the lower end of the inner supporting cover extends into a gap between the to-be-trimmed battery shell and the mounting column when the to-be-trimmed battery shell sleeves the mounting column, and the linear driving device is used for driving the mounting frame to move in the horizontal direction; and the cutter is elastically arranged on the mounting frame. The inner supporting cover can play a role in supporting the inner wall of the battery shell, so that the battery shell can be prevented from being extruded and deformed by the cutter from outside to inside, the smoothness of a notch of the battery shell is improved, and the product quality is further improved.

Description

Technical Field

[0001] This utility model relates to the field of battery casing processing technology, specifically a battery casing edge cutting device. Background Technology

[0002] During battery production, the battery casing undergoes a series of processing steps, including edge trimming. The purpose of edge trimming is to ensure the lithium battery casing meets precise dimensional requirements, which is crucial for proper installation in end-user devices. Standard dimensions not only improve the efficiency of mass production but also ensure the smooth operation of automated assembly lines.

[0003] In particular, for square battery casings, especially those with thinner walls, the cutting process can easily cause inward bending deformation due to the pressure of the cutting tool. This deformation results in uneven cuts, thus reducing product quality. Therefore, it is necessary to develop a new battery casing cutting device to solve the problems existing in the prior art and ensure that the cut battery casings have higher flatness and consistency. Utility Model Content

[0004] The purpose of this invention is to provide a battery casing edge cutting device to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution:

[0006] A battery casing trimming device includes a base and a linear drive device, a rotary drive device, a mounting column, an inner support cover, a mounting frame, and a cutter disposed on the base. The rotary drive device drives the mounting column to rotate about an axis. The inner support cover is fitted onto the top of the mounting column and is detachably fixedly connected to the mounting column via a connector. The lower end of the inner support cover extends into the gap between the battery casing to be trimmed and the mounting column when the battery casing to be trimmed is fitted onto the outside of the mounting column. The linear drive device drives the mounting frame to move horizontally. The cutter is elastically disposed on the mounting frame.

[0007] Optionally, the connector includes a stud fixed to the upper end of the mounting post and a nut threadedly engaged with the stud. The top of the inner support cover has a through hole, through which the stud passes and connects to the nut.

[0008] Optionally, a cutting groove is provided on the side wall of the inner support cover that fits against the inner wall of the battery casing to be cut, and the cutting groove is at the same height as the cutter.

[0009] Optionally, the mounting frame includes a first frame and a second frame, the first frame being connected to the linear drive device, the second frame being elastically connected to the first frame along the horizontal direction, and the cutter being fixedly mounted on the second frame.

[0010] Optionally, a connecting column is fixedly installed on the side of the second frame away from the mounting column, and a connecting seat is fixedly installed on the first frame. The connecting column is movably installed through the connecting seat, and a spring is sleeved on the outside of the connecting column. The two ends of the spring abut against the second frame and the connecting seat, respectively.

[0011] Optionally, the cutter is disc-shaped, with the outer circular edge of the cutter forming the blade, and the center of the cutter is rotatably connected to the second frame via a pivot.

[0012] Compared with the prior art, this utility model provides a battery casing edge cutting device, which has the following features:

[0013] Beneficial effects:

[0014] 1. The inner support cover of this utility model can support the inner wall of the battery casing, thus preventing the cutter from squeezing and deforming the battery casing from the outside in, thereby improving the flatness of the cut of the battery casing and thus improving product quality;

[0015] 2. This utility model has a cutting groove on the side wall where the inner support cover fits against the inner wall of the battery casing to be cut. The cutting groove makes it easier for the cutter to cut the battery casing.

[0016] 3. In this invention, when the rotary drive device drives the mounting column and the battery casing on the mounting column to rotate, the cutter will rotate around the rotating axis, and the blade of the cutter will roll and cut along the battery casing. This can improve the efficiency of the blade and reduce the frequency of blade replacement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A.

[0021] In the diagram: 1. Linear drive device; 2. Rotary drive device; 3. Mounting column; 4. Inner support cover; 40. Through hole; 41. Cutting groove; 5. Mounting bracket; 50. First frame; 51. Second frame; 6. Cutter; 60. Blade; 7. Base; 8. Stud; 9. Nut; 10. Connecting column; 11. Spring; 12. Rotating shaft; 13. First slider slide rail mechanism; 14. Second slider slide rail mechanism; 15. Battery casing; 16. Connecting seat. Detailed Implementation

[0022] 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, 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.

[0023] Example: Please refer to Figures 1 to 4 According to an embodiment of the present invention, a battery casing trimming device is provided, which includes a base 7 and a linear drive device 1, a rotary drive device 2, a mounting column 3, an inner support cover 4, a mounting frame 5, and a cutter 6 disposed on the base 7. The rotary drive device 2 is used to drive the mounting column 3 to rotate around an axis. The inner support cover 4 is sleeved on the top of the mounting column 3 and is detachably fixedly connected to the mounting column 3 through a connector. The lower end of the inner support cover 4 extends into the gap between the battery casing 15 to be trimmed and the mounting column 3 when the battery casing 15 to be trimmed is sleeved on the outside of the mounting column 3. The linear drive device 1 is used to drive the mounting frame 5 to move in the horizontal direction. The cutter 6 is elastically disposed on the mounting frame 5.

[0024] In the battery casing 15 edge-cutting device with the above-described structure, the battery casing 15 to be edge-cut is placed over the mounting post 3. The inner support cover 4 is then fixedly connected to the top of the mounting post 3, with its lower end extending into the gap between the battery casing 15 and the mounting post 3, thus supporting the inner wall of the battery casing 15. Next, the linear drive device 1 drives the mounting bracket 5 to move horizontally, bringing it closer to the battery casing 15 until the blade 60 of the cutter 6 elastically presses against the outer wall of the battery casing 15. Finally, the rotary drive device 2 drives the mounting post 3 and the battery casing 15 on it to rotate, causing the cutter 6 to perform a circumferential cut on the battery casing 15. During the cutting process, the presence of the inner support cover 4 supports the inner wall of the battery casing 15, preventing the cutter 6 from squeezing and deforming the battery casing 15 from the outside in, thereby improving the smoothness of the cut and ultimately improving product quality.

[0025] Preferably, the linear drive device 1 is a cylinder and the rotary drive device 2 is an electric motor. The working methods of the cylinder and the electric motor are existing technologies and will not be described in detail here.

[0026] In this exemplary embodiment, the connector includes a stud 8 fixedly disposed on the upper end of the mounting post 3 and a nut 9 threadedly engaged with the stud 8. The inner support cover 4 has a through hole 40 at its top end, through which the stud 8 passes and connects to the nut 9. When installing the inner support cover 4, it is placed on the top end of the mounting post 3, the stud 8 passes through the through hole 40, and then the nut 9 is screwed onto the stud 8 to tighten the inner support cover 4. To remove the inner support cover 4, simply unscrew the nut 9 from the stud 8 to remove it. This connection method allows the inner support cover 4 to be detachably fixed to the top end of the mounting post 3, offering the advantage of convenient assembly and disassembly.

[0027] In this exemplary embodiment, a cutting groove 41 is provided on the side wall of the inner support cover 4 that is in contact with the inner wall of the battery casing 15 to be cut. The cutting groove 41 is at the same height as the cutter 6. Specifically, the cross-section of the cutting groove 41 is triangular. The cutting groove 41 makes it easier for the cutter 6 to cut the battery casing 15.

[0028] In this exemplary embodiment, the mounting frame 5 includes a first frame 50 and a second frame 51. The first frame 50 is connected to the linear drive device 1, and the second frame 51 is elastically connected to the first frame 50 in the horizontal direction. The cutter 6 is fixedly mounted on the second frame 51. Specifically, a connecting column 10 is fixedly provided on the side of the second frame 51 away from the mounting column 3, and a connecting seat 16 is fixedly provided on the first frame 50. The connecting column 10 is movably disposed through the connecting seat 16, and a spring 11 is sleeved on the outside of the connecting column 10. The two ends of the spring 11 abut against the second frame 51 and the connecting seat 16, respectively. The second frame 51 is elastically connected to the first frame 50 in the horizontal direction through the cooperation of the spring 11 and the connecting column 10. To improve the stability of the first frame 50 moving in the horizontal direction, the first frame 50 and the second frame 51 are slidably connected through a first slider rail mechanism 13. To improve the stability of the second frame 51 moving in the horizontal direction, the second frame 51 and the base 7 are slidably connected through a second slider rail mechanism 14.

[0029] like Figure 4 As shown in this exemplary embodiment, the cutter 6 is disc-shaped, with its outer circular edge forming the cutting edge 60. The center of the cutter 6 is rotatably connected to the second frame 51 via a pivot 12. With this configuration, when the rotary drive 2 drives the mounting post 3 and the battery casing 15 on the mounting post 3 to rotate, the cutter 6 rotates around the pivot 12, and the cutting edge 60 of the cutter 6 rolls and cuts along the battery casing 15. This improves the efficiency of the cutting edge 60 and reduces the frequency of cutter 6 replacement.

[0030] Working principle: During use, the battery casing 15 to be cut is placed on the outside of the mounting post 3. Then, the inner support cover 4 is fixedly connected to the top of the mounting post 3, ensuring that the lower end of the inner support cover 4 extends into the gap between the battery casing 15 and the mounting post 3 to support the inner wall of the battery casing 15. Next, the linear drive device 1 pushes the mounting bracket 5 to move horizontally, so that the mounting bracket 5 gradually approaches the battery casing 15 until the blade 60 of the cutter 6 elastically contacts the outer wall of the battery casing 15. Finally, the rotary drive device 2 is activated to drive the mounting post 3 and the battery casing 15 on it to rotate, so that the cutter 6 performs a precise circumferential cut on the battery casing 15, ensuring that the battery casing 15 is stably supported during the cutting process and achieving an efficient and accurate cutting effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery casing edge-cutting device, characterized in that, The device includes a base (7) and a linear drive device (1), a rotary drive device (2), a mounting column (3), an inner support cover (4), a mounting frame (5), and a cutter (6) disposed on the base (7). The rotary drive device (2) is used to drive the mounting column (3) to rotate around an axis. The inner support cover (4) is fitted onto the top of the mounting column (3) and is detachably fixed to the mounting column (3) through a connector. The lower end of the inner support cover (4) extends into the gap between the battery casing (15) to be cut and the mounting column (3) when the battery casing (15) to be cut is fitted onto the outside of the mounting column (3). The linear drive device (1) is used to drive the mounting frame (5) to move in the horizontal direction. The cutter (6) is elastically disposed on the mounting frame (5).

2. The battery casing trimming device according to claim 1, characterized in that: The connector includes a stud (8) fixedly disposed on the upper end of the mounting post (3) and a nut (9) threadedly engaged with the stud (8). The top end of the inner support cover (4) is provided with a through hole (40). The stud (8) passes through the through hole (40) and is connected to the nut (9).

3. The battery casing trimming device according to claim 1, characterized in that: The inner support cover (4) has a cutting groove (41) on its side wall that fits against the inner wall of the battery casing (15) to be cut. The cutting groove (41) is at the same height as the cutter (6).

4. The battery casing trimming device according to claim 1, characterized in that: The mounting frame (5) includes a first frame (50) and a second frame (51). The first frame (50) is connected to the linear drive device (1), and the second frame (51) is elastically connected to the first frame (50) along the horizontal direction. The cutter (6) is fixedly installed on the second frame (51).

5. The battery casing trimming device according to claim 4, characterized in that: A connecting column (10) is fixedly installed on the side of the second frame (51) away from the mounting column (3), and a connecting seat (16) is fixedly installed on the first frame (50). The connecting column (10) is movably installed through the connecting seat (16). A spring (11) is sleeved on the outside of the connecting column (10), and the two ends of the spring (11) abut against the second frame (51) and the connecting seat (16) respectively.

6. The battery casing trimming device according to claim 4, characterized in that: The cutter (6) is disc-shaped, and the outer edge of the cutter (6) is the blade (60). The center of the cutter (6) is rotatably connected to the second frame (51) through a pivot (12).

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