CN219851563U - A cylindrical battery rolling groove device - Google Patents

Abstract

The utility model relates to the technical field of battery processing equipment, in particular to a cylindrical battery channeling device which comprises a main shaft, a plurality of channeling mechanisms and a driving assembly, wherein the main shaft is rotatably arranged, the channeling mechanisms are connected to the periphery of the main shaft, the driving assembly is positioned at one end, far away from the main shaft, of the channeling mechanisms, a transmission wheel set is sleeved on the main shaft and can be connected with the main shaft in a relative rotating manner, each channeling mechanism is provided with a planet wheel, the planet wheels are in transmission connection with the transmission wheel set, and the transmission wheel set is connected to the driving end of the driving assembly. Because the transmission wheelset can rotate relatively with the main shaft to be connected, and then the drive assembly is when driving the transmission wheelset rotation, the rotation of transmission wheelset can not lead to the main shaft to produce the moment of torsion, thereby reduces the moment of torsion that the main shaft produced through this transmission mode, solves the problem that easily causes the main shaft to warp in actual production, improves the main shaft life-span, reduces the abnormal rate of rolling groove device actuating system.

Description

A cylindrical battery rolling groove device

Technical field

This application relates to the technical field of battery processing equipment, and in particular to a cylindrical battery rolling groove device.

Background technique

In the production and processing of cylindrical batteries, the battery shell is fixed on the jig of the turntable of the rolling groove equipment, and then the outer side wall of the port of the battery shell is rolled and grooved to facilitate the subsequent shell sealing operation. Most of the driving mechanisms of existing rolling grooving equipment are equipped with a driving component under the equipment machine. The driving component is connected to the main shaft. A sun wheel and several planetary wheels are fixed on the upper end of the main shaft. The driving component drives the main shaft to rotate and is driven by the sun wheel and planetary wheels. Other mechanisms such as rolling groove mechanisms rotate. Since the driving assembly is placed below the machine, the sun gear and several planet gears are located at the upper end of the main shaft, and the main shaft needs to rotate to drive other structures such as the rolling groove mechanism to rotate through the sun gear and planet wheels, so that the main shaft needs to support the turntable, Rolling groove mechanisms, multiple planetary gears, sun gears and other structures have a large spindle load, resulting in excessive spindle torque. In actual production, it is easy to cause spindle deformation, resulting in short spindle life. The abnormality rate of the rolling groove equipment drive system is high, which affects production. .

Utility model content

In order to solve one of the above technical problems, the present application provides a cylindrical battery rolling groove device, which includes a rotatable main shaft, a plurality of rolling groove mechanisms connected to the outer periphery of the main shaft, and is located at one end of the rolling groove mechanism away from the main shaft. A driving assembly, a transmission wheel set is set on the main shaft, and the transmission wheel set is relatively rotatably connected to the main shaft. Each rolling groove mechanism is provided with a planet wheel, and the planet wheel is connected to the main shaft. The transmission wheel set is transmission connected, and the transmission wheel set is connected to the driving end of the driving assembly. Since the transmission wheel set and the main shaft can be relatively rotatably connected, when the drive assembly drives the transmission wheel set to rotate, the rotation of the transmission wheel set will not cause the main shaft to generate torque. This transmission method can reduce the torque generated by the main shaft and solve the problem in actual production. It is easy to cause the problem of spindle deformation, improve the life of the spindle, and reduce the abnormality rate of the rolling groove device drive system.

Preferably, the transmission wheel set includes a sun gear and a driven wheel that are integrally connected, the sun gear meshes with the planet gear for transmission, and the driven wheel is drivingly connected with the driving end of the driving assembly. The driving wheel set can be relatively rotatably connected to the main shaft through the bearing, thereby realizing that when the driving assembly drives the transmission wheel set to rotate, the transmission wheel set and the main shaft rotate relative to each other. Therefore, the rotation of the transmission wheel set will not cause the main shaft to generate torque, reducing the torque generated on the main shaft. torque to achieve the purpose of protecting the spindle.

Preferably, the driving end of the driving assembly is connected to a connecting shaft assembly, and an end of the connecting shaft assembly away from the driving assembly is provided with a driving wheel, and the driving wheel engages with the transmission wheel set for transmission. For example, the driving component may be a motor. The rotating shaft of the motor is connected to the connecting shaft component. The connecting shaft component drives the driving wheel to rotate, thereby driving the transmission wheel set to rotate.

Preferably, the connecting shaft assembly includes a bearing seat and a connecting shaft that passes through the bearing seat. Both ends of the connecting shaft are connected to the driving wheel and the driving assembly respectively. The driving component then drives the connecting shaft to rotate, and the connecting shaft drives the driving wheel to rotate synchronously.

Preferably, the bearing seat is provided with a pair of angular contact bearings at each end of the connecting shaft, a first bushing is provided on the outer circumferential surface of the connecting shaft, and a third bushing is provided on the inner wall of the bearing seat. Two shaft sleeves, the ends of the first shaft sleeve and the second shaft sleeve are respectively in contact with the inner ring end face and the outer ring end face of one of the angular contact bearings. Using this structure, the center through hole of the bearing seat can be processed and formed at one time. Compared with the upper and lower bearing seats, the bearing seat using this structure has higher coaxiality when installing the connecting shaft and angular contact ball bearings, and ensures The coaxiality of the first bushing, the second bushing and the bearing seat makes the connecting shaft less likely to deform and increases the service life of the connecting shaft.

Preferably, the outer peripheral surface of the main shaft is sleeved with a sleeve shaft, and the outer peripheral surface of the sleeve shaft is formed with several mounting surfaces, and the rolling groove mechanism is connected to the mounting surfaces. The main shaft can be driven to rotate by the driving motor, and then when the main shaft rotates, it can drive the rolling groove mechanism to rotate synchronously, and the battery on the rolling groove mechanism realizes the driving rotation through the transmission cooperation of the planetary wheel on the rolling groove mechanism, the driving assembly and the transmission wheel set. , thereby reducing the rotational torque and load of the spindle and solving the problems of easy deformation and short life of the spindle.

Preferably, the rolling groove mechanism includes a fixed frame, a battery bearing seat and a side plate arranged on the fixed frame, and an outer rotating shaft that is relatively rotatably connected to the fixed frame. One end of the side plate is fixed on the fixed frame, and the other end of the side plate is fixed on the fixed frame. One end is connected to an upper pressing member, the planet wheel is arranged on the outer rotating shaft, and an inner rotating shaft is inserted through the outer rotating shaft. One end of the inner rotating shaft is relatively rotatably connected to the upper pressing member, and the other end is connected to Roll groove mold. The sun gear of the transmission wheel set drives the planetary gear on the outer rotating shaft to rotate, which in turn drives the inner rotating shaft to rotate, causing the rolling groove mold pressed against the top of the battery to rotate, thereby driving the battery to rotate.

Preferably, a rotating cam is provided on the sleeve shaft and between the rolling groove mechanism and the transmission wheel set. The rotating cam is connected to a hob mechanism, and the rotating cam is used to drive the roller. The knife mechanism is close to or away from the battery on the battery holder. By driving the planetary wheel to rotate and driving the battery to rotate, the hob mechanism performs rolling groove processing on the outer wall of the battery casing.

Preferably, the outer peripheral side wall of the inner rotating shaft is provided with a channel extending along its axial direction, and the inner side wall of the outer rotating shaft is provided with convex strips matching the channel. Furthermore, the inner rotating shaft and the outer rotating shaft can rotate synchronously through the cooperation of the convex strips and the grooves. The grooves and the convex strips extend along the axial direction of the inner rotating shaft and the outer rotating shaft, so that the inner rotating shaft and the outer rotating shaft can move relative to each other along the axial direction.

Preferably, the rolling groove mold includes an outer mold sleeve and an inner mold sleeve. The outer mold sleeve is fixedly connected to the lower end of the outer rotating shaft. The inner mold sleeve is fixedly connected to the lower end of the inner rotating shaft. The inner mold sleeve is fixedly connected to the lower end of the inner rotating shaft. There is a gap between the outer mold sleeves for the upper end of the power supply core shell to be inserted. The inner rotating shaft and the outer rotating shaft are driven to rotate by the driving assembly, the transmission wheel set and the planets, which in turn drive the battery to rotate, thereby cooperating with the hob mechanism to complete the rolling groove processing on the outer wall of the battery casing.

Compared with the prior art, the beneficial effects of this application are: this application connects the rolling groove mechanism to the outer periphery of the main shaft, a driving assembly is provided at one end of the rolling groove mechanism away from the main shaft, a transmission wheel set is set on the main shaft, and the transmission wheel The group and the main shaft can be relatively rotatably connected. Each rolling groove mechanism is provided with a planet wheel, and the planets are drivingly connected to the transmission wheel group, and the transmission wheel group is connected to the driving end of the driving assembly. The driving assembly drives the transmission wheel set to rotate, and the transmission wheel set drives the planetary wheels on each rolling groove mechanism to rotate. Since the transmission wheel set and the main shaft can be relatively rotatably connected, when the driving assembly drives the transmission wheel set to rotate, the transmission wheel set Rotation will not cause the spindle to generate torque. This transmission method reduces the torque generated by the spindle, solves the problem of spindle deformation in actual production, increases the life of the spindle, and reduces the abnormality rate of the rolling groove device drive system.

Description of the drawings

In order to more clearly explain the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are only part of the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a front view of the cylindrical battery rolling groove device according to the embodiment of the present application;

Figure 2 is an enlarged view of the cylindrical battery rolling groove device according to the embodiment of the present application;

Figure 3 is a cross-sectional view of the connecting shaft assembly according to the embodiment of the present application;

Figure 4 is a schematic structural diagram of the rolling groove mechanism according to the embodiment of the present application;

Figure 5 is a schematic structural diagram of the inner rotating shaft according to the embodiment of the present application;

Figure 6 is a schematic structural diagram of a rolling groove mold according to an embodiment of the present application.

Reference signs

10. Spindle; 20. Rolling groove mechanism; 21. Fixed frame; 22. Battery bearing seat; 23. Side plate; 24. Upper pressing member; 25. External rotating shaft; 26. Internal rotating shaft; 261. Channel; 262. Oil tank; 27. Rolling groove mold; 271. Outer mold sleeve; 272. Inner mold sleeve; 273. Anti-overpressure spring; 274. Pressure block; 28. Hob mechanism; 30. Transmission wheel set; 31. Sun gear; 32. Driven wheel; 40. Planetary wheel; 50. Driving assembly; 51. Driving wheel; 60. Connecting shaft assembly; 61. Bearing seat; 62. Connecting shaft; 63. Angular contact bearing; 64. First bushing; 65 , the second bushing.

Detailed ways

Multiple embodiments of the present application will be disclosed in the following drawings. For the sake of clarity, many practical details will be explained in the following description. However, it is understood that these practical details shall not limit the application. That is to say, in some implementations of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some commonly used structures and components will be shown in the drawings in a simple schematic manner.

It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of this application are only used to explain the relative positional relationship between the components in a specific posture as shown in the drawings. Sports conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, descriptions involving "first", "second", etc. in this application are only for descriptive purposes and do not specifically refer to the order or order, nor are they used to limit this application. They are only used to distinguish between the following. The same technical terms describe only components or operations, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor is it within the scope of protection required by this application.

In order to further understand the content, characteristics and functions of this application, the following embodiments are listed below, and the detailed description is as follows with the accompanying drawings:

In order to solve the above technical problems, this embodiment provides a cylindrical battery rolling groove device, as shown in Figure 1-2, including a rotatable main shaft 10, a plurality of rolling groove mechanisms 20 connected to the outer periphery of the main shaft 10, located in the rolling groove The mechanism 20 is provided with a driving assembly 50 at one end away from the main shaft 10. A transmission wheel set 30 is set on the main shaft 10, and the transmission wheel set 30 and the main shaft 10 are relatively rotatably connected. Each rolling groove mechanism 20 is provided with a planet wheel. 40, and the planet wheel 40 is drivingly connected to the transmission wheel set 30, and the transmission wheel set 30 is connected to the driving end of the driving assembly 50. The driving assembly 50 drives the transmission wheel set 30 to rotate, and the transmission wheel set 30 drives the planet wheel 40 on each rolling groove mechanism 20 to rotate, causing the battery on the rolling groove mechanism 20 to rotate, thereby realizing rolling groove processing. Since the transmission wheel set 30 and The main shaft 10 can be relatively rotatably connected. When the driving assembly 50 drives the transmission wheel set 30 to rotate, the rotation of the transmission wheel set 30 will not cause the main shaft 10 to generate torque. This transmission method can reduce the torque generated by the main shaft 10 and solve the problem in actual production. It is easy to cause the problem of spindle 10 deformation, improve the life of the spindle, and reduce the abnormality rate of the rolling groove device drive system.

Specifically, in the above solution, the transmission wheel set 30 includes a sun gear 31 and a driven wheel 32 that are connected as one body. The sun gear 31 meshes with the planet gear 40 for transmission, and the driven wheel 32 is drivingly connected with the driving end of the driving assembly 50 . The sun gear 31 and the driven gear 32 are connected into one body, and the sun gear 31 and the driven gear 32 rotate synchronously to achieve the purpose of transmission. For example, the transmission wheel set 30 can be relatively rotatably connected to the main shaft 10 through bearings, thereby realizing that when the driving assembly 50 drives the transmission wheel set 30 to rotate, the transmission wheel set 30 and the main shaft 10 rotate relatively, and the transmission wheel set 30 drives each The planet wheel 40 on the rolling groove mechanism 20 rotates, causing the battery on the rolling groove mechanism 20 to rotate, thereby realizing the rolling groove processing. This transmission method does not require transmission through the main shaft 10 , so the rotation of the transmission wheel set 30 will not cause the main shaft 10 to generate torque, thereby reducing the torque generated on the main shaft 10 and achieving the purpose of protecting the main shaft 10 .

In order to realize the transmission connection between the driving assembly 50 and the transmission wheel set 30, the driving end of the driving assembly 50 is connected with a connecting shaft assembly 60. The connecting shaft assembly 60 is provided with a driving wheel 51 at one end away from the driving assembly 50. The driving wheel 51 is connected to the driving wheel set 30. Engagement transmission. For example, the driving component 50 may be a motor. The rotation shaft of the motor is connected to the connecting shaft component 60 . The connecting shaft component 60 drives the driving wheel 51 to rotate, thereby driving the transmission wheel set 30 to rotate.

Further, in one of the embodiments, as shown in FIG. 3 , the connecting shaft assembly 60 includes a bearing seat 61 and a connecting shaft 62 that passes through the bearing seat 61 . The connecting shaft 62 and the bearing seat 61 are relatively rotatably connected. Both ends of the shaft 62 are connected to the driving wheel 51 and the driving assembly 50 respectively. Then the driving assembly 50 drives the connecting shaft 62 to rotate, and the connecting shaft 62 drives the driving wheel 51 to rotate synchronously.

Among them, in order to achieve a relatively rotatable connection between the connecting shaft 62 and the bearing seat 61, as a preferred embodiment, a pair of angular contact bearings 63 are set at both ends of the connecting shaft 62 in the bearing seat 61, wherein the angular contact bearings 63 The bearing 63 may be an angular contact ball bearing, and each pair of angular contact ball bearings is installed back-to-back, so that the connecting shaft 62 and the bearing seat 61 can be relatively rotatably connected through the angular contact bearing 63 . The bearing seat 61 is arranged in a tubular structure. A first bushing 64 is provided on the outer circumferential surface of the connecting shaft 62. A second bushing 65 is provided on the inner wall of the bearing seat 61. The ends of the first bushing 64 and the second bushing 65 are They are respectively in contact with the inner ring end face and the outer ring end face of one of the angular contact bearings 63 . Using this structure, when processing the bearing seat 61, the central through hole of the bearing seat 61 can be formed with one cut. Compared with the upper and lower bearing seats, the bearing seat 61 using this structure can be installed with the connecting shaft 62 and the angular contact The bearing 63 has higher coaxiality and ensures the coaxiality of the first sleeve 64, the second sleeve 65 and the bearing seat 61, making the connecting shaft 62 less likely to deform and increasing the service life of the connecting shaft 62.

In order to realize the connection between the rolling groove mechanism 20 and the main shaft 10, the outer peripheral surface of the main shaft 10 is provided with a sleeve shaft, and the outer peripheral surface of the sleeve shaft is formed with several mounting surfaces. The rolling groove mechanism 20 is connected to the mounting surface, and the main shaft 10 can be driven by a motor. The driving rotation can drive the rolling groove mechanism 20 to rotate synchronously when the main shaft 10 rotates, and the battery on the rolling groove mechanism 20 is realized through the transmission cooperation of the planet wheel 40 on the rolling groove mechanism 20 and the driving assembly 50 and the transmission wheel set 30 The drive rotates, thereby reducing the rotational torque and load of the spindle 10, and solving the problems of the spindle 10 being easily deformed and having a short lifespan. It is also possible that a transmission gear is connected to the main shaft 10 below the sleeve shaft, and the transmission gear can be connected with other feeding turntables of the rolling grooving equipment to drive other feeding turntables to rotate.

Specifically, in order to realize the rolling groove processing of the battery case, as shown in Figure 4, the rolling groove mechanism 20 includes a fixed frame 21, a battery carrier 22 and a side plate 23 arranged on the fixed frame 21, and rotates relative to the fixed frame 21 The outer rotating shaft 25 is connected to the fixed frame 21 through bearings for relative rotation. One end of the side plate 23 is fixed on the fixed frame 21. The other end of the side plate 23 is connected to the upper pressing member 24. The planet wheel 40 is arranged on the outer side. On the rotating shaft 25, an inner rotating shaft 26 is inserted through the outer rotating shaft 25. The outer rotating shaft 25 and the inner rotating shaft 26 rotate synchronously. One end of the inner rotating shaft 26 is relatively rotatably connected to the upper pressing member 24, and the other end is connected to a rolling groove mold 27. The upper pressing member 24 can be pressed against the cam structure to achieve a lifting action, thereby causing the inner rotating shaft 26 to move up and down, thereby driving the rolling groove mold 27 to move. The rolling groove mold 27 cooperates with the battery carrier 22 to clamp the battery. The sun gear 31 of the transmission wheel set 30 drives the planetary gear 40 on the outer rotating shaft 25 to rotate, which in turn drives the inner rotating shaft 26 to rotate, causing the rolling groove mold 27 pressed against the top of the battery to rotate, thereby driving the battery to rotate.

Furthermore, a rotating cam is provided on the sleeve shaft and between the rolling groove mechanism 20 and the transmission wheel set 30. The rotating cam is connected to the hob mechanism 28, and the rotating cam is used to drive the hob mechanism 28 close to or away from the battery carrier. 22 on the battery. When the hob mechanism 28 abuts the battery case on the battery carrier 22, the planet wheel 40 is driven to rotate and the battery is driven to rotate, thereby rolling groove processing is performed on the outer wall of the battery case. Since the combined structure of the hob mechanism 28 and the rotating cam is relatively existing technology, it will not be described in detail here.

In the above solution, as shown in Figure 5, the outer peripheral side wall of the inner rotating shaft 26 is provided with a channel 261 extending along its axial direction, and a number of oil grooves 262 are provided on the outer peripheral wall of the inner rotating shaft 26. Through the oil grooves 262, the inner rotating shaft 26 and the external rotating shaft 25 for relative lubrication. The inner wall of the outer rotating shaft 25 is provided with convex strips that match the grooves 261, and the inner rotating shaft 26 and the outer rotating shaft 25 rotate synchronously through the cooperation of the convex strips and the channel 261. The channel 261 and the convex strips are along the inner rotating shaft 26. and the axial extension of the outer rotating shaft 25, so that the inner rotating shaft 26 and the outer rotating shaft 25 can move relative to each other along the axial direction.

Further, as shown in Figure 6, the rolling groove mold 27 includes an outer mold sleeve 271 and an inner mold sleeve 272. The outer mold sleeve 271 is fixedly connected to the lower end of the outer rotating shaft 25, the inner mold sleeve 272 is fixedly connected to the lower end of the inner rotating shaft 26, and the inner mold sleeve 271 is fixedly connected to the lower end of the outer rotating shaft 25. There is a gap between the mold sleeve 272 and the outer mold sleeve 271 for the upper end of the power core housing to be inserted. A pressing block 274 is fixed in the inner hole of the inner mold sleeve 272, and an over-pressure prevention spring 273 is provided in the inner mold sleeve 272. The outer mold sleeve 271 can rotate synchronously with the outer rotating shaft 25, and the inner mold sleeve 272 can rotate along with the external rotating shaft 25. The inner rotating shaft 26 rotates synchronously, and the upper end of the inner rotating shaft 26 and the upper pressing member 24 are relatively rotatably connected. The upper pressing member 24 is driven to move up and down through the cam structure, and the upper pressing member 24 drives the inner rotating shaft 26 to move up and down. When the upper pressing member 24 cooperates with the cam structure to achieve the lifting action, the inner rotating shaft 26 and the outer rotating shaft 25 move relative to each other along the axial direction, thereby causing the inner rotating shaft 26 to move toward the battery on the battery carrier 22 , and the inner rotating shaft 26 at the lower end of the inner rotating shaft 26 moves relative to the battery holder 22 . The mold sleeve 272 and the pressing block 274 compress the battery on the battery carrier 22, leaving a gap for the upper end of the shell to be inserted between the inner mold sleeve 272 and the outer mold sleeve 271, and then through the drive assembly 50 and the transmission wheel set 30 and the planet wheel 40 drive the inner rotating shaft 26 and the outer rotating shaft 25 to rotate, thereby driving the battery to rotate, thereby cooperating with the hob mechanism 28 to complete the rolling groove processing on the outer wall of the battery casing.

To sum up, in one or more embodiments of the present application, the solution of the present application connects a rolling groove mechanism on the outer periphery of the main shaft, a driving assembly is provided at an end of the rolling groove mechanism away from the main shaft, and a transmission wheel set is set on the main shaft. Moreover, the transmission wheel set and the main shaft can be relatively rotatably connected. Each rolling groove mechanism is provided with a planet wheel, and the planets are transmission connected with the transmission wheel set. The transmission wheel set is connected to the driving end of the driving assembly. The driving assembly drives the transmission wheel set to rotate, and the transmission wheel set drives the planetary wheels on each rolling groove mechanism to rotate. Since the transmission wheel set and the main shaft can be relatively rotatably connected, when the driving assembly drives the transmission wheel set to rotate, the transmission wheel set Rotation will not cause the spindle to generate torque. This transmission method reduces the torque generated by the spindle, solves the problem of spindle deformation in actual production, increases the life of the spindle, and reduces the abnormality rate of the rolling groove device drive system.

The above-described embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments shall be included in the protection scope of this technical solution.

Claims (10)

1. A cylindrical battery rolling groove device, characterized in that: it includes a rotatable main shaft (10), several rolling groove mechanisms (20) connected to the outer periphery of the main shaft (10), and a rolling groove mechanism (20) located on the outer circumference of the main shaft (10). 20) A driving assembly (50) at one end away from the main shaft (10). A transmission wheel set (30) is set on the main shaft (10). The transmission wheel set (30) and the main shaft (10) can be Relative rotation connection, each rolling groove mechanism (20) is provided with a planet wheel (40), the planet wheel (40) is drivingly connected with the transmission wheel set (30), and the transmission wheel set (30) ) is connected to the driving end of the driving assembly (50). 2. The cylindrical battery rolling groove device according to claim 1, characterized in that: the transmission wheel set (30) includes a sun wheel (31) and a driven wheel (32) connected as one body, and the sun wheel (31) ) is engaged with the planet wheel (40) for transmission, and the driven wheel (32) is transmission connected with the driving end of the driving assembly (50). 3. The cylindrical battery rolling groove device according to claim 1, characterized in that: the driving end of the driving assembly (50) is connected to a connecting shaft assembly (60), and the connecting shaft assembly (60) is away from the driving assembly. A driving wheel (51) is provided at one end of the assembly (50), and the driving wheel (51) engages with the transmission wheel set (30) for transmission. 4. The cylindrical battery rolling groove device according to claim 3, characterized in that the connecting shaft assembly (60) includes a bearing seat (61) and a connecting shaft (62) penetrating the bearing seat (61). , the connecting shaft (62) and the bearing seat (61) are relatively rotatably connected, and the two ends of the connecting shaft (62) are connected to the driving wheel (51) and the driving assembly (50) respectively. 5. The cylindrical battery rolling groove device according to claim 4, characterized in that: the bearing seat (61) is equipped with an angular contact bearing (63) at both ends of the connecting shaft (62). A first sleeve (64) is provided on the outer circumferential surface of the connecting shaft (62), and a second sleeve (65) is provided on the inner wall of the bearing seat (61). The first sleeve (64) and The ends of the second sleeve (65) are respectively in contact with the inner ring end surface and the outer ring end surface of one of the angular contact bearings (63). 6. The cylindrical battery rolling groove device according to claim 1, characterized in that: a sleeve shaft is sleeved on the outer peripheral surface of the main shaft (10), and a plurality of mounting surfaces are formed on the outer peripheral surface of the sleeve shaft. The rolling groove mechanism (20) is connected to the mounting surface. 7. The cylindrical battery rolling groove device according to claim 6, characterized in that: the rolling groove mechanism (20) includes a fixed frame (21), and a battery carrying seat (22) arranged on the fixed frame (21). and the side plate (23) and the external rotating shaft (25) connected to the fixed frame (21) in relative rotation; one end of the side plate (23) is fixed on the fixed frame (21), and the other end is connected to the upper Resisting member (24); the planet wheel (40) is sleeved on the outer rotating shaft (25), and an inner rotating shaft (26) is inserted through the outer rotating shaft (25). The inner rotating shaft (26) One end is relatively rotatably connected to the upper pressing member (24), and the other end is connected to a rolling groove mold (27). 8. The cylindrical battery rolling grooving device according to claim 7, characterized in that: a rotating shaft is provided on the sleeve shaft and between the rolling grooving mechanism (20) and the transmission wheel set (30). Cam, the rotating cam is connected with a hob mechanism (28), and the rotating cam is used to drive the hob mechanism (28) to approach or move away from the battery on the battery carrier (22). 9. The cylindrical battery rolling groove device according to claim 7, characterized in that: the outer peripheral side wall of the inner rotating shaft (26) is provided with a channel (261) extending along its axial direction, and the outer rotating shaft (26) The inner side wall of 25) is provided with convex strips that match the groove. 10. The cylindrical battery rolling groove device according to claim 7, characterized in that: the rolling groove mold (27) includes an outer mold sleeve (271) and an inner mold sleeve (272), and the outer mold sleeve (271) It is fixedly connected to the lower end of the outer rotating shaft (25), the inner mold sleeve (272) is fixedly connected to the lower end of the inner rotating shaft (26), and the inner mold sleeve (272) is fixedly connected to the outer mold sleeve (271). There is a gap for the upper end of the power supply core housing to be inserted.