A cutting assembly for lithium battery casing

Abstract

The utility model discloses a cutting assembly for lithium battery shells, comprising a base, a cutting mechanism fixedly installed in the middle of the outer side of the base, a transverse positioning mechanism fixedly installed on the top of the base located on one side of the cutting mechanism, a longitudinal positioning mechanism fixedly installed on the back side of the base located on the side away from the transverse positioning mechanism, a cylindrical shell is clamped inside the transverse positioning mechanism and the longitudinal positioning mechanism, and efficient and uniform cutting of the cylindrical shell of the lithium battery is achieved by setting the cutting mechanism, the electric push rod is started, the laser cutting head moves downward to approach the shell, and at the same time, the fourth motor is started, the second motor drives the transmission pulley to rotate, and the two groups of transmission pulleys are synchronously driven by the transmission belt connection, thereby driving a group of driving rollers to rotate, driving the cylindrical shell to rotate, and during the rotation of the shell, the laser cutting head is started to perform 360-degree comprehensive cutting on the outer surface of the shell, thereby ensuring uniform processing of the shell and improving the cutting processing quality and efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery shell cutting and processing, and particularly relates to a cutting component for a lithium battery shell. Background Art

[0002] The structure of a cylindrical lithium battery includes components such as a shell, a cap, a positive electrode, a negative electrode, a diaphragm, an electrolyte, a PTC element, a gasket and a safety valve. Among them, the shell is not only the negative electrode of the battery, but also protects the internal structure of the battery and prevents electrolyte leakage. The cylindrical shell of a lithium battery is usually made of steel shell or polymer material. Steel shell cylindrical lithium batteries are widely used for their high capacity, high output voltage, good charge and discharge cycle performance, stable output voltage, large current discharge capacity, stable electrochemical performance, safe use, wide operating temperature range and environmental friendliness.

[0003] The cylindrical shell of lithium battery is generally prepared by cutting. The Chinese patent with the publication number "CN116586781B" discloses a metal laser cutting device for lithium battery shell, which includes a base plate, a feeding module, a laser cutting module and a moving module. The feeding module is installed on the left side of the upper end of the base plate, and the moving module is installed on the right side of the upper end of the base plate. The laser cutting module is installed between the feeding module and the moving module, and the laser cutting module is located above the feeding module and the moving module. The cutting function of the lithium battery shell can be realized, and the cut lithium battery shell waste can be collected and processed to prevent the waste of a large amount of lithium battery shell waste.

[0004] Although the above-mentioned device can play a good positioning role during use, in its specific application process, after positioning the cylindrical shell, the shell is in a fixed state, it is not convenient to adjust the rotation and lateral displacement of the shell, and it is not convenient to flexibly adjust and adapt during the cutting process. Moreover, in large-scale production and processing, a longer cylindrical shell cannot be cut into multiple smaller cylindrical shells. It can be seen that it has certain defects and shortcomings and needs to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a cutting assembly for a lithium battery shell to solve the problems raised in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A cutting assembly for a lithium battery shell, comprising a base, a cutting mechanism is fixedly installed in the middle of the outer side of the base, a transverse positioning mechanism is fixedly installed on the top of the base located on one side of the cutting mechanism, and a longitudinal positioning mechanism is fixedly installed on the back of the base located on the side away from the transverse positioning mechanism, the inner sides of the transverse positioning mechanism and the longitudinal positioning mechanism clamp a cylindrical shell, and the inner sides of the transverse positioning mechanism and the longitudinal positioning mechanism are clamped by rollers arranged opposite to each other and drive the cylindrical shell to rotate, and the rollers are driven by a motor;

[0008] The cutting mechanism includes a concave seat, which is fixedly installed in the middle of the outer side of the base, and an electric push rod is fixedly installed in the middle of the top of the base, and the bottom of the electric push rod passes through the concave seat and is fixedly installed with a laser cutting head. The core of the cutting mechanism is the concave seat, which is firmly installed in the middle of the base, and an electric push rod is installed in the center of the top of the base, and its bottom passes through the concave seat and is connected to the laser cutting head. When cutting is required, the electric push rod drives the laser cutting head to move downward, approaching and fitting the outer surface of the cylindrical shell. After the laser cutting head is started, it can rotate 360 ​​degrees to perform comprehensive and uniform cutting of the shell to ensure the cutting quality and efficiency. The horizontal positioning mechanism and the longitudinal positioning mechanism are responsible for accurately positioning and fixing the cylindrical shell. By adjusting these mechanisms, it can adapt to shells of different diameters and lengths, improving the versatility and flexibility of the device. The cutting component is exquisitely designed and fully functional. It not only improves the cutting efficiency and quality of lithium battery shells, but also reduces the operating difficulty and labor cost. It is an indispensable and important equipment on the lithium battery production line.

[0009] As a preferred technical solution, mounting holes are provided at the four corners of the base, and the mounting holes are configured as countersunk holes. Mounting holes are carefully provided at the four corners of the base, and these mounting holes particularly adopt a countersunk hole design. The presence of the countersunk holes not only provides a stable and reliable mounting point, so that the component can be firmly fixed in the desired position, but also ensures the overall aesthetics of the base.

[0010] As a preferred technical solution, the lateral positioning mechanism includes a side rail, which is fixedly installed on one side of the top of the base. The inside of the side rail is rotatably connected to a first screw rod, and the threads at both ends of the first screw rod have opposite rotation directions. Both ends of the first screw rod are threadedly connected to a clamping assembly. One end of the side rail is fixedly installed with a first motor, and the output end of the first motor passes through the side rail and is fixedly connected to one end of the first screw rod. The side rail is firmly installed on one side of the top of the base and serves as the main supporting structure of the lateral positioning mechanism. The inside of the side rail is rotatably connected to the first screw rod. The design of the first screw rod is very unique, and the threads at both ends are in opposite rotation directions. This feature makes it possible for the screw rod to rotate when it rotates. When the first screw rod is rotated, the clamping assembly at both ends can move toward or away from each other, and the clamping assembly is connected to the two ends of the first screw rod by a threaded connection. Therefore, when the first screw rod rotates, the clamping assembly will move according to the rotation direction of the screw rod. In this way, the clamping assembly can flexibly clamp or release the lithium battery casing to ensure that it is stably fixed in the cutting position. At one end of the side rail, a first motor is fixedly installed. The output end of the first motor passes through the side rail and is fixedly connected to one end of the first screw rod. In this way, when the first motor is started, it can drive the first screw rod to rotate. By controlling the forward and reverse rotation of the first motor, the position of the clamping assembly can be conveniently adjusted to adapt to lithium battery casings of different sizes.

[0011] As a preferred technical solution, the clamping assembly includes a slider, which is slidably connected to the inside of the side rail, a support rod is fixedly installed on the top of the slider, a connecting frame is fixedly installed on the top of the support rod, and the side shape of the connecting frame is V-shaped, and the upper and lower ends of the inside of the connecting frame are rotatably connected to driving rollers, a second motor is fixedly installed on one side of the connecting frame, the output end of the second motor passes through the connecting frame and a transmission pulley is fixedly installed, and the upper end of the outer side of the connecting frame with the second motor is also rotatably connected to a transmission pulley, and the transmission pulleys are connected through a transmission belt transmission, the inner side of the transmission pulley is fixedly connected to one end of the driving roller, and the connecting frame is fixed on the top of the support rod, and its side shape is V-shaped. This design enables the connecting frame to flexibly adapt to lithium battery shells of different diameters to ensure that the shells can be stably placed Inside the connecting frame, at the upper and lower ends of the connecting frame, drive rollers are rotatably connected. These drive rollers can provide support when the outer shell is placed, and assist in positioning and fixing the outer shell by rotating. It is worth mentioning that a second motor is also fixedly installed on one side of the connecting frame. The output end of the second motor passes through the connecting frame and is fixedly installed with a transmission pulley. In addition, another transmission pulley is also rotatably connected to the upper end of the outer side of the connecting frame with the second motor. The two transmission pulleys are connected by a transmission belt to realize power transmission. The inner side of the transmission pulley is fixedly connected to one end of the drive roller. Therefore, when the second motor is started, it can drive the drive roller to rotate through the transmission pulley. This design enables the clamping assembly to adjust the position and rotation speed of the drive roller as needed, so as to better adapt to lithium battery shells of different sizes and shapes.

[0012] As a preferred technical solution, the longitudinal positioning mechanism includes a vertical rail, which is fixedly installed on the side of the back of the base away from the side rails, the inside of the vertical rail is rotatably connected to the second screw rod, the top of the vertical rail is fixedly installed with a third motor, the output end of the third motor is fixedly connected to the top of the second screw rod, the two ends of the second screw rod have opposite thread rotation directions, the two ends of the second screw rod are threadedly connected with sliding blocks, the outer side of the sliding block is fixedly installed with a positioning assembly, the core components of the mechanism include the vertical rail, the second screw rod, the third motor and the sliding block, etc. The vertical rail is firmly installed on the back of the base and is located away from the side rails One side of the vertical rail provides a solid support structure for longitudinal positioning. Inside the vertical rail, the second screw rod is rotatably connected, and the threads at both ends of the second screw rod have opposite rotation directions. This design allows the sliding blocks at both ends to move toward or away from each other when the screw rod rotates. In order to realize the rotation drive of the second screw rod, a third motor is fixedly installed on the top of the vertical rail, and the output end of the third motor is fixedly connected to the top of the second screw rod. Therefore, when the third motor is started, it can drive the second screw rod to rotate. By controlling the forward and reverse rotation of the third motor, the position of the sliding block can be conveniently adjusted, thereby realizing the positioning adjustment of the lithium battery casing in the longitudinal direction.

[0013] As a preferred technical solution, the positioning assembly includes a side rod, which is fixedly installed on the outside of the sliding block, and a concave seat is fixedly installed on the outer end of the side rod, and a fourth motor is fixedly installed on one side of the concave seat, and the output end of the fourth motor passes through the concave seat and is fixedly installed with a transmission roller. The positioning assembly plays a vital role in the longitudinal positioning mechanism. It can be flexibly adjusted according to the size and shape of the lithium battery shell to ensure the stable fixation of the shell during the cutting process. The side rod is the main part of the positioning assembly, which is firmly fixed on the outside of the sliding block. This design enables the positioning assembly to move with the movement of the sliding block, thereby realizing the positioning of the lithium battery. For precise positioning of the shell in the longitudinal direction, a concave seat is fixedly installed at the outer end of the side rod. The concave seat not only provides an installation basis for subsequent components, but also enhances the stability and clamping force of the positioning assembly through its unique shape design. On one side of the concave seat, a fourth motor is fixedly installed. The fourth motor serves as a power source and provides power support for the clamping and releasing actions of the positioning assembly. Its output end passes through the concave seat and is fixedly installed with a transmission roller. When the fourth motor is started, it can drive the transmission roller to rotate, thereby driving the cylindrical shell to perform lateral linear displacement drive. This design enables the positioning assembly to flexibly adapt to lithium battery shells of different sizes and shapes.

[0014] As a preferred technical solution, a guide ring groove is provided on the inner side of the drive roller, and the overall cross-sectional shape of the guide ring groove is V-shaped. Firstly, the V-shaped guide ring groove can adapt well to the shape of the lithium battery shell, ensuring that the shell can be stably placed in the groove to prevent movement or shaking during the cutting process. Secondly, the existence of the guide ring groove can also play a guiding and positioning role. When the drive roller rotates, the guide ring groove can guide the shell to be guided and positioned along a predetermined path, ensuring the accuracy and precision of the cutting, and can adapt to cylindrical shells of different thicknesses.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] By setting up a cutting mechanism, the device can achieve efficient and uniform cutting of the cylindrical shell of a lithium battery. The electric push rod is started, and the laser cutting head moves downward to approach the shell. At the same time, the clamping assembly drives the cylindrical shell to rotate. During the rotation of the shell, the laser cutting head is started to perform a 360-degree comprehensive cutting of the outer surface of the shell. This rotary cutting method ensures uniform processing of the shell, improves the cutting quality and efficiency, and makes the device an ideal choice for lithium battery shell cutting. In addition, by setting up a transverse positioning mechanism in conjunction with a longitudinal positioning mechanism, it can adapt to cylindrical shells of different diameters and lengths, which can improve the overall adaptability of the device. By setting up a longitudinal positioning mechanism, it is convenient to cut long shells. When cutting is required, the positioning assembly and the clamping assembly are used in conjunction to enhance the adjustability and adaptability of the device, so that it can meet different cutting requirements and achieve axial movement or rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 4 It is a schematic diagram of the positioning component structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the utility model.

[0022] : 1. base; 2. cutting mechanism; 21. concave seat; 22. electric push rod; 23. laser cutting head; 3. lateral positioning mechanism; 31. side rail; 32. first screw rod; 33. clamping assembly; 331. slider; 332. support rod; 333. connecting frame; 334. driving roller; 335. second motor; 336. transmission pulley; 34. first motor; 4. cylindrical shell; 5. longitudinal positioning mechanism; 51. vertical rail; 52. second screw rod; 53. third motor; 54. sliding block; 55. positioning assembly; 551. side rod; 552. positioning recess; 553. fourth motor; 554. transmission roller; 555. guide ring groove; 6. mounting hole. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 5, a cutting assembly for a lithium battery shell of the present embodiment comprises a base 1, a cutting mechanism 2 is fixedly installed in the middle of the outer side of the base 1, a lateral positioning mechanism 3 is fixedly installed on the top of the base 1 located on one side of the cutting mechanism 2, a longitudinal positioning mechanism 5 is fixedly installed on the back side of the base 1 located on the side away from the lateral positioning mechanism 3, a cylindrical shell 4 is clamped on the inner sides of the lateral positioning mechanism 3 and the longitudinal positioning mechanism 5, and the inner sides of the lateral positioning mechanism 3 and the longitudinal positioning mechanism 5 are clamped and driven to rotate the cylindrical shell 4 by rollers arranged opposite to each other, and the rollers are driven by a motor;

[0025] The cutting mechanism 2 includes a concave seat 21, which is fixedly installed in the middle of the outer side of the base 1. An electric push rod 22 is fixedly installed in the middle of the top of the base 1. The bottom of the electric push rod 22 passes through the concave seat 21 and is fixedly installed with a laser cutting head 23. The core of the cutting mechanism 2 is the concave seat 21, which is firmly installed in the middle of the base 1. The electric push rod 22 is installed in the center of the top of the base 1, and its bottom passes through the concave seat 21 and is connected to the laser cutting head 23. When cutting is required, the electric push rod 22 drives the laser cutting head 23 to move downward, approaching and fitting the outer surface of the cylindrical shell 4. After the laser cutting head 23 is started, it can perform comprehensive and uniform cutting of the shell in a 360-degree rotation manner to ensure the cutting quality and efficiency. The horizontal positioning mechanism 3 and the longitudinal positioning mechanism 5 are responsible for accurately positioning and fixing the cylindrical shell 4. By adjusting these mechanisms, it can adapt to shells of different diameters and lengths, improving the versatility and flexibility of the device. The cutting component is exquisitely designed and fully functional, which not only improves the cutting efficiency and quality of the lithium battery shell, but also reduces the operation difficulty and labor cost.

[0026] The base 1 is provided with a material discharge port, which is located directly below the concave seat 21. When the cutting is completed, the material can be discharged through the material discharge port.

[0027] refer to Figure 1-Figure 5 The four corners of the base 1 are all provided with mounting holes 6, which are set as countersunk holes. The four corners of the base 1 are all carefully provided with mounting holes 6, and these mounting holes 6 are particularly designed with countersunk holes. The existence of the countersunk holes not only provides a stable and reliable mounting point, so that the components can be firmly fixed in the required position, but also ensures the overall aesthetics of the base 1. This design enables the head of the screw or bolt to be completely sunk into the hole when installing it, and will not protrude from the surface of the base 1, thereby avoiding possible collision and interference, and improving the neatness of the overall appearance.

[0028] refer to Figure 1-Figure 3The lateral positioning mechanism 3 includes a side rail 31, which is fixedly installed on the top of the base 1. The inside of the side rail 31 is rotatably connected to a first screw rod 32. The threads at both ends of the first screw rod 32 are in opposite directions. Both ends of the first screw rod 32 are threadedly connected to a clamping assembly 33. A first motor 34 is fixedly installed on one end of the side rail 31. The output end of the first motor 34 passes through the side rail 31 and is fixedly connected to one end of the first screw rod 32. The side rail 31 is firmly installed on one side of the top of the base 1 as the main supporting structure of the lateral positioning mechanism 3. The first screw rod 32 is rotatably connected inside the side rail 31. When the first screw rod 32 rotates, the clamping assemblies 33 at both ends can move toward or away from each other. The clamping assembly 33 is threadedly connected to both ends of the first screw rod 32. Therefore, when the first screw rod 32 rotates, the clamping assembly 33 will It moves according to the rotation direction of the screw rod. In this way, the clamping assembly 33 can flexibly clamp or release the lithium battery shell to ensure that it is stably fixed in the cutting position. At one end of the side rail 31, a first motor 34 is fixedly installed. The output end of the first motor 34 runs through the side rail 31 and is fixedly connected to one end of the first screw rod 32. In this way, when the first motor 34 is started, it can drive the first screw rod 32 to rotate. By controlling the forward and reverse rotation of the first motor 34, the position of the clamping assembly 33 can be easily adjusted to adapt to lithium battery shells of different sizes. The lateral positioning mechanism 3 can not only realize the precise positioning of the lithium battery shell, but also can be flexibly adjusted according to actual needs, which greatly improves the working efficiency and cutting accuracy of the cutting assembly, and provides a strong guarantee for the stable operation of the lithium battery production line.

[0029] refer to Figure 5The clamping assembly 33 includes a slider 331, which is slidably connected to the inside of the side rail 31. A support rod 332 is fixedly installed on the top of the slider 331, and a connecting frame 333 is fixedly installed on the top of the support rod 332. The side shape of the connecting frame 333 is V-shaped, and the upper and lower ends of the inside of the connecting frame 333 are rotatably connected to the driving roller 334. A second motor 335 is fixedly installed on one side of the connecting frame 333, and the output end of the second motor 335 passes through the connecting frame 333 and is fixedly installed with a transmission pulley 336. The upper end of the outer side of the connecting frame 333 with the second motor 335 is also rotatably connected with a transmission pulley 336. The transmission pulleys 336 are connected by a transmission belt transmission, and the inner side of the transmission pulley 336 is fixedly connected to one end of the driving roller 334. The connecting frame 333 is fixed to the top of the support rod 332 The side shape of the connecting frame 333 is V-shaped. This design enables the connecting frame 333 to flexibly adapt to lithium battery shells of different diameters, ensuring that the shell can be stably placed inside the connecting frame 333. Drive rollers 334 are rotatably connected to the upper and lower ends of the connecting frame 333. These drive rollers 334 can provide support when the shell is placed, and assist in positioning and fixing the shell by rotating, so that the clamping assembly 33 can adjust the position and rotation speed of the drive roller 334 as needed, so as to better adapt to lithium battery shells of different sizes and shapes. At the same time, by controlling the forward and reverse rotation of the second motor 335, the bidirectional rotation of the drive roller 334 can also be achieved, further improving the flexibility and practicality of the clamping assembly 33, conveniently and flexibly driving the cylindrical shell 4 to rotate, and improving its cutting processing efficiency.

[0030] refer to Figure 1-Figure 3 The longitudinal positioning mechanism 5 includes a vertical rail 51, which is fixedly installed on the back side of the base 1 away from the side rail 31. The vertical rail 51 is rotatably connected to the second screw rod 52 inside, and a third motor 53 is fixedly installed on the top of the vertical rail 51. The output end of the third motor 53 is fixedly connected to the top of the second screw rod 52. The two ends of the second screw rod 52 have opposite thread rotation directions. Both ends of the second screw rod 52 are threadedly connected to a sliding block 54, and a positioning component 55 is fixedly installed on the outer side of the sliding block 54. The core components of the mechanism include the vertical rail 51, the third motor 53, and the third motor 53. The output end of the third motor 53 is fixedly connected to the top of the second screw rod 52. The two ends of the second screw rod 52 have opposite thread rotation directions. The two ends of the second screw rod 52 are threadedly connected to the sliding block 54, and the outer side of the sliding block 54 is fixedly installed with a positioning component 55. The second screw rod 52, the third motor 53 and the sliding block 54, etc., the vertical rail 51 is firmly mounted on the back of the base 1 and is located on the side away from the side rail 31, providing a solid support structure for longitudinal positioning. Inside the vertical rail 51, the second screw rod 52 is rotatably connected, and the threads at both ends of the second screw rod 52 are rotated in opposite directions. This design allows the sliding blocks 54 at both ends to move toward or away from each other when the screw rod rotates, and the position of the sliding block 54 can be easily adjusted, thereby realizing the positioning adjustment of the lithium battery housing in the longitudinal direction.

[0031] refer to Figure 4The positioning assembly 55 includes a side rod 551, which is fixedly installed on the outer side of the sliding block 54. A positioning recess 552 is fixedly installed on the outer end of the side rod 551. A fourth motor 553 is fixedly installed on one side of the positioning recess 552. The output end of the fourth motor 553 passes through the positioning recess 552 and is fixedly installed with a transmission roller 554. The positioning assembly 55 plays a vital role in the longitudinal positioning mechanism 5. It can be flexibly adjusted according to the size and shape of the lithium battery shell to ensure the stable fixation of the shell during the cutting process. The side rod 551 is the main part of the positioning assembly 55. It is firmly fixedly installed on the outer side of the sliding block 54, so that the positioning assembly 55 can move with the movement of the sliding block 54, thereby realizing the precise positioning of the lithium battery shell in the longitudinal direction. At the outer end of the side rod 551, a positioning recess 552 is fixedly installed. The positioning recess 552 is not only for the rear The fourth motor 553 is fixedly installed on one side of the positioning recess 552. The fourth motor 553 serves as a power source and provides power support for the clamping and releasing actions of the positioning component 55. The output end thereof passes through the positioning recess 552 and is fixedly installed with a transmission roller 554. When the fourth motor 553 is started, it can drive the transmission roller 554 to rotate, thereby driving the cylindrical shell 4 to perform axial linear displacement drive. This design enables the positioning component 55 to flexibly adapt to lithium battery shells of different sizes and shapes. By controlling the forward and reverse rotation of the fourth motor 553 and the rotation speed of the transmission roller 554, the lithium battery shell can be accurately positioned and stably clamped, and the cutting processing length can also be flexibly adjusted, thereby improving the overall cutting adaptability of the device.

[0032] refer to Figure 4 A guide ring groove 555 is provided on the inner side of the transmission roller 554, and the overall cross-sectional shape of the guide ring groove 555 is V-shaped. Firstly, the V-shaped guide ring groove 555 can adapt well to the shape of the lithium battery shell, ensuring that the shell can be stably placed in the groove to prevent movement or shaking during the cutting process. Secondly, the existence of the guide ring groove 555 can also play a guiding and positioning role. When the transmission roller 554 rotates, the guide ring groove 555 can guide the shell to be guided and positioned along a predetermined path, ensuring the accuracy and precision of the cutting, and can adapt to cylindrical shells 4 of different thicknesses, enhancing the stability and reliability of clamping. The design of the V-shaped guide ring groove 555 on the inner side of the transmission roller 554 not only improves the positioning accuracy and stability of the lithium battery shell, but also enhances the practicality and work efficiency of the cutting assembly.

[0033] Principle and advantages of use: By setting the cutting mechanism 2, during use, the device can be operated by starting the electric push rod 22. The operation of the electric push rod 22 can push the laser cutting head 23 to move downward. By moving the laser cutting head 23 toward the bottom, it can assist in approaching the cylindrical shell 4. At this time, by starting the fourth motor 553, the second motor 335 is used to drive the transmission pulley 336 to rotate. The transmission pulleys 336 are connected by a transmission belt transmission, and then the two sets of transmission pulleys 336 can be synchronously driven to rotate. The rotation of the two sets of transmission pulleys 336 can assist in driving one set of the four sets of driving rollers 334 to rotate. The rotation of one set of driving rollers 334 can drive the cylindrical shell 4 to rotate around the axis. At this time, while the cylindrical shell 4 rotates, by starting the laser cutting head 23, the outer surface of the cylindrical shell 4 can be assisted by the laser cutting head 23 to perform a 360-degree comprehensive cutting. Since it adopts a rotary cutting method, the cylindrical shell 4 can be cut more evenly as a whole, which can improve the overall cutting quality of the device.

[0034] By setting the lateral positioning mechanism 3 to cooperate with the longitudinal positioning mechanism 5, the device can be operated by starting the first motor 34 during use. The first motor 34 can drive the first screw rod 32 to rotate. Since the threads at both ends of the first screw rod 32 rotate in opposite directions, the rotation of the first screw rod 32 can assist in driving the two sets of sliders 331 to reciprocate inside the side rails 31. The reciprocating movement of the sliders 331 can drive the driving rollers 334 to fit the outer surface of the cylindrical shell 4. In addition, since the four sets of driving rollers 334 are provided, they can adapt to cylindrical shells 4 of different diameters, which can improve the overall adaptability of the device. By setting the longitudinal positioning mechanism 5, the device can be operated by starting the third motor 53 during use. The third motor 53 can be used to drive the second screw rod 52 to rotate on the inner side of the vertical rail 51. Since the threads at both ends of the second screw rod 52 rotate in opposite directions, the two sets of sliding blocks 54 can be synchronously driven to reciprocate inside the vertical rail 51. The sliding blocks 54 can reciprocate inside the vertical rail 51 to assist in driving. The movable side rods 551 are displaced with each other, and the side rods 551 drive the positioning recesses 552 to move with each other, so that the two sets of transmission rollers 554 can be made to fit the outer surface of the cylindrical shell 4. At this time, due to the setting of the guide ring groove 555, the overall cross-sectional shape of the guide ring groove 555 is V-shaped, which can flexibly adapt to the lithium battery cylindrical shells 4 of different thicknesses and diameters. At this time, by starting the first motor 34 to drive the driving roller 334 to separate from the contact with the cylindrical shell 4, the fourth motor 553 can be started to drive the transmission roller 554 to drive the cylindrical shell 4 to move axially, so as to facilitate the slitting of the longer cylindrical shell 4. When cutting is required, it is only necessary to drive the third motor 53 to drive the transmission roller 554 to separate (the separation distance can be as long as it does not affect the rotation of the shell 4), and then adjust the driving roller 334 to fit the cylindrical shell 4. At this time, the second motor 335 can be driven to drive the cylindrical shell 4 to rotate, which can improve the adjustable adaptability of the overall cutting processing of the device, so that the cylindrical shell 4 can be displaced laterally or rotationally, and can adapt to the cutting adaptation needs of different situations.

Claims

1. A cutting assembly for a lithium battery housing, comprising a base (1), characterized in that: A cutting mechanism (2) is fixedly installed on the upper middle part of the base (1); a transverse positioning mechanism (3) is fixedly installed on the top of the base (1) on one side of the cutting mechanism (2); a longitudinal positioning mechanism (5) is fixedly installed on the back side of the base (1) on the side away from the transverse positioning mechanism (3); the inner sides of the transverse positioning mechanism (3) and the longitudinal positioning mechanism (5) are clamped by rollers arranged opposite to each other and drive the cylindrical shell (4) to rotate; the rollers are driven by a motor; The cutting mechanism (2) comprises a concave seat (21), the concave seat (21) is fixedly mounted on the outer side of the base (1), an electric push rod (22) is fixedly mounted in the middle of the top of the base (1), a laser cutting head (23) is fixedly mounted on the bottom of the electric push rod (22) passing through the concave seat (21), and a material discharge port is opened on the base (1), and the material discharge port is located directly below the concave seat (21).

2. A cutting assembly for a lithium battery casing according to claim 1, characterized in that: The four corners of the base (1) are each provided with a mounting hole (6), and the mounting hole (6) is configured as a countersunk hole.

3. A cutting assembly for a lithium battery casing according to claim 1, characterized in that: The lateral positioning mechanism (3) comprises a side rail (31), the side rail (31) is fixedly mounted on one side of the top of the base (1), a first screw rod (32) is rotatably connected inside the side rail (31), the threads at both ends of the first screw rod (32) are screwed in opposite directions, both ends of the first screw rod (32) are threadedly connected to a clamping assembly (33), one end of the side rail (31) is fixedly mounted with a first motor (34), and the output end of the first motor (34) passes through the side rail (31) and is fixedly connected to one end of the first screw rod (32).

4. A cutting assembly for a lithium battery casing according to claim 3, characterized in that: The clamping assembly (33) comprises a slider (331), the slider (331) is slidably connected to the inside of the side rail (31), a support rod (332) is fixedly installed on the top of the slider (331), a connecting frame (333) is fixedly installed on the top of the support rod (332), the side surface of the connecting frame (333) is V-shaped, the upper and lower ends of the connecting frame (333) are rotatably connected to driving rollers (334), and a second motor (335) is fixedly installed on the connecting frame (333) to drive the driving roller (334) to rotate.

5. A cutting assembly for a lithium battery casing according to claim 4, characterized in that: The longitudinal positioning mechanism (5) comprises a vertical rail (51), the vertical rail (51) is fixedly mounted on a side of the back of the base (1) away from the side rail (31), the interior of the vertical rail (51) is rotatably connected to a second screw rod (52), the top of the vertical rail (51) is fixedly mounted to a third motor (53), the output end of the third motor (53) is fixedly connected to the top of the second screw rod (52), the two ends of the second screw rod (52) have opposite thread rotation directions, the two ends of the second screw rod (52) are both threadedly connected to a sliding block (54), and the outer side of the sliding block (54) is fixedly mounted to a positioning assembly (55).

6. A cutting assembly for a lithium battery casing according to claim 5, characterized in that: The positioning assembly (55) comprises a side rod (551), wherein the side rod (551) is fixedly mounted on the outer side of the sliding block (54), a positioning recess (552) is fixedly mounted on the outer end of the side rod (551), a fourth motor (553) is fixedly mounted on one side of the positioning recess (552), and a transmission roller (554) is fixedly mounted on the output end of the fourth motor (553) passing through the positioning recess (552).

7. A cutting assembly for a lithium battery casing according to claim 6, characterized in that: A guide ring groove (555) is provided on the inner side of the driving roller (554), and the overall cross-sectional shape of the guide ring groove (555) is V-shaped.

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