A down-pressing rotating mechanism and a rolling groove device

Abstract

The application provides a kind of down-pressing rotary mechanism and groove device, relate to battery processing technical field, down-pressing rotary mechanism includes rotary drive part, bearing and down-pressing component, the bearing is used to bear shell, the rotary drive part is used to drive the bearing rotation to drive the shell rotation, the down-pressing component includes down-pressing drive part, shell pressure head, battery cell pressure head and elastic element, the shell pressure head is set relative to the bearing, the battery cell pressure head is slid and is provided in the shell pressure head, the elastic element is provided in the shell pressure head, and two ends are respectively resisted the shell pressure head with the battery cell pressure head, the down-pressing drive part is used to drive the shell pressure head moves, to cooperate with the bearing, and the shell is compressed tightly.By the setting of battery cell pressure head, when down-pressing is retracted, elastic element is resisted battery cell pressure head, so that shell and shell pressure head are separated, avoid shell pressure head and shell occur when retraction and stick together.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing, and in particular to a downward pressing and rotating mechanism and a rolling groove device. BACKGROUND

[0002] In the existing battery production process, the outer surface of the battery shell needs to be rolled after the cylindrical battery cell is put into the shell and before the negative current collector plate is welded. At present, the rolling groove device of the cylindrical battery shell mostly puts the battery in a carrier that can rotate, presses the shell tightly by a downward pressing mechanism on the carrier, and then a rolling cutter contacts the shell to roll.

[0003] In the traditional process, the shell and the battery cell are pressed tightly by an integrated pressing head. In the production process, the height of the battery cell may not be consistent. In this case, the integrated pressing head may only press the battery cell to cause damage to the battery cell, or the integrated pressing head may only press the shell to cause the battery cell to loosen during rotation, resulting in the disconnection of the battery cell or the connecting sheet at the bottom of the battery cell from the shell. Moreover, when the pressing head is retracted after processing, due to the influence of the rolling groove process, the pressing head may be stuck to the shell, causing the battery to be taken away by the downward pressing mechanism, resulting in problems such as the random position of the battery, falling and collision, and affecting the efficiency and yield of the processing. SUMMARY

[0004] To overcome the deficiencies in the prior art, the present application provides a downward pressing and rotating mechanism and a rolling groove device.

[0005] The downward pressing and rotating mechanism provided by the present application is used to press and rotate the shell containing the battery cell. The downward pressing and rotating mechanism comprises a rotating driving member, a bearing member, and a downward pressing assembly. The bearing member is used to bear the shell. The rotating driving member is used to drive the bearing member to rotate to drive the shell to rotate. The downward pressing assembly comprises a downward pressing driving member, a shell pressing head, a battery cell pressing head, and an elastic member. The shell pressing head is arranged opposite to the bearing member. The battery cell pressing head is slidably arranged in the shell pressing head. The elastic member is arranged in the shell pressing head and abuts against the shell pressing head and the battery cell pressing head at both ends. The downward pressing driving member is used to drive the shell pressing head to move to press the shell in cooperation with the bearing member.

[0006] In a possible implementation, the downward pressing assembly further comprises a telescopic shaft and a first connecting rod. The telescopic shaft is connected to the driving end of the downward pressing driving member. The first connecting rod is connected to the shell pressing head. The telescopic shaft and the first connecting rod are connected through a bearing.

[0007] In a possible implementation, the pressing-down assembly further comprises a second connecting rod, a avoiding slot is arranged in the shell pressing head, the battery cell pressing head is accommodated in the avoiding slot, the second connecting rod is connected with the battery cell pressing head through the avoiding slot, and the elastic member is sleeved on the second connecting rod.

[0008] In a possible implementation, the second connecting rod is slidably connected with the shell pressing head through a bearing.

[0009] In a possible implementation, a embedding part is arranged on a side of the shell pressing head facing the carrier, and the embedding part is used for embedding an inner side of the shell when the shell pressing head is pressed against the shell.

[0010] In a possible implementation, the pressing-down rotating mechanism further comprises a rotating shaft, the rotating shaft is connected with a driving end of the rotating driving member, and the carrier is arranged on the rotating shaft.

[0011] The application further provides a groove rolling device comprising the groove rolling mechanism and the above-described pressing-down rotating mechanism.

[0012] In a possible implementation, the groove rolling mechanism comprises a feeding driving member, an eccentric cam and a hobbing tool assembly, the eccentric cam abuts against the hobbing tool assembly, and the feeding driving member is used for driving the eccentric cam to rotate, so as to drive the hobbing tool assembly to move towards the shell, and the shell is subjected to groove rolling processing.

[0013] In a possible implementation, the groove rolling mechanism further comprises a tension spring, one end of the tension spring is connected with the hobbing tool assembly, and the other end of the tension spring is connected with the eccentric cam.

[0014] In a possible implementation, the groove rolling mechanism further comprises an oiling sponge and an oil box, the hobbing tool assembly comprises a rotating hobbing tool, the oiling sponge abuts against the hobbing tool, and the oil box is used for injecting oil to the oiling sponge.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The pressing-down rotating mechanism provided by the application comprises the battery cell pressing head arranged in the shell pressing head, the shell and the battery cell in the shell are respectively pressed by the shell pressing head and the battery cell pressing head, the damage of the battery cell and the separation of the battery cell can be prevented, the elastic member is arranged between the shell pressing head and the battery cell pressing head, when the pressing-down compression is retracted, the elastic member abuts against the battery cell pressing head, the shell can be separated from the retracted shell pressing head, the adhesion between the shell pressing head and the shell during the retraction of the shell pressing head is avoided, and the processing efficiency and the production yield are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those of ordinary skill in the art without any creative effort.

[0018] Figure 1 A structural schematic diagram of a rolling groove device provided by the embodiments of the present application is shown.

[0019] Figure 2 A structural schematic diagram of a rolling groove device provided by the embodiments of the present application is shown. Figure 1 A structural schematic diagram of a pressing and rotating mechanism of the rolling groove device is shown.

[0020] Figure 3 A structural schematic diagram of a pressing and rotating mechanism of the rolling groove device is shown. Figure 1 A sectional view of the pressing and rotating mechanism is shown.

[0021] Figure 4 A structural schematic diagram of a rolling groove device provided by the embodiments of the present application is shown. Figure 3 An enlarged schematic diagram of part A of the rolling groove device is shown.

[0022] Figure 5 A structural schematic diagram of a rolling groove device provided by the embodiments of the present application is shown. Figure 1 A side view of the rolling groove device is shown.

[0023] Figure 6 A structural schematic diagram of a rolling groove device provided by the embodiments of the present application is shown. Figure 1 A structural schematic diagram of a rolling groove mechanism of the rolling groove device is shown.

[0024] Figure 7 A structural schematic diagram of a rolling groove mechanism of the rolling groove device is shown. Figure 6 A structural schematic diagram of a rolling groove mechanism of the rolling groove device is shown.

[0025] Main element symbol explanation:

[0026] 100-pressing and rotating mechanism; 10-driving assembly; 11-rotary driving piece; 12-speed reducer; 20-bearing assembly; 21-frame; 211-axle seat; 22-bearing piece; 23-rotary shaft; 30-pressing assembly; 31-pressing driving piece; 32-outer shell pressing head; 321-embedded part; 322-avoidance groove; 33-electricity core pressing head; 34-elastic piece; 35-telescopic shaft; 351-joint; 36-first connecting rod; 37-second connecting rod; 200-outer shell; 201-electricity core; 300-rolling groove mechanism; 301-rolling groove frame; 302-slideway; 40-feeding assembly; 41-feeding driving piece; 42-eccentric cam; 50-rolling cutter assembly; 51-rolling cutter seat; 52-rolling cutter; 53-stretching spring; 54-rolling cutter pressing block; 60-adjusting assembly; 61-adjusting seat; 62-first adjusting head; 63-second adjusting head; 70-lubricating assembly; 71-oil applying sponge; 72-oil box; 900-rolling groove device. DETAILED DESCRIPTION

[0027] Embodiments of the present application will be described in detail below with reference to the drawings, in which like or similar elements or features are identified with the same or similar reference numerals throughout the drawings. The embodiments described below are examples only, and are not intended to limit the present application.

[0028] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0029] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not intended to indicate or imply relative importance or a specific number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", and the like should be understood broadly, for example, can be fixed connection, can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] Embodiment One

[0033] Referring to Figure 1 An embodiment of the present application provides a pressing and rotating mechanism 100 used in a slotting device 900. The pressing and rotating mechanism 100 is used to press and rotate a shell 200 containing a battery cell 201, so as to facilitate slotting of the shell 200. The pressing and rotating mechanism 100 can avoid the shell 200 from being taken away after being pressed and rotated, and improve the processing efficiency and production yield.

[0034] The pressing and rotating mechanism 100 comprises a driving assembly 10, a bearing assembly 20 and a pressing assembly 30. The driving assembly 10 is connected with the bearing assembly 20. The bearing assembly 20 is used to bear the shell 200. The driving assembly 10 is used to drive the bearing assembly 20 to rotate, so as to drive the shell 200 to rotate. The pressing assembly 30 is arranged relative to the bearing assembly 20. The pressing assembly 30 is used to cooperate with the bearing assembly 20 to press the shell 200 on the bearing assembly 20.

[0035] Referring to Figure 2 and Figure 3 simultaneously, the driving assembly 10 comprises a rotating driving member 11. The driving end of the rotating driving member 11 is connected with the bearing assembly 20. The rotating driving member 11 is used to drive the bearing assembly 20 to rotate, so as to drive the shell 200 to rotate.

[0036] In some embodiments, the rotating driving member 11 is a servo motor, but is not limited thereto.

[0037] In some embodiments, the driving assembly 10 further comprises a speed reducer 12. The driving end of the rotating driving member 11 is connected with the speed reducer 12. The bearing assembly 20 is connected with the driving end of the speed reducer 12. The speed reducer 12 is used to reduce the rotating speed, so as to increase the torque.

[0038] The bearing assembly 20 comprises a frame 21 and a bearing member 22. The bearing member 22 is rotatably arranged on the frame 21. The bearing member 22 is used to bear the shell 200. The driving assembly 10 is used to drive the bearing member 22 to rotate.

[0039] In some embodiments, the driving assembly 10 is connected with the frame 21.

[0040] In some embodiments, the bearing assembly 20 further comprises a rotating shaft 23. The rotating shaft 23 is rotatably arranged on the frame 21. One end of the rotating shaft 23 is connected with the driving end of the speed reducer 12. The bearing member 22 is arranged on the other end of the rotating shaft 23.

[0041] Please refer to Figure 4 The lower-pressing assembly 30 comprises a lower-pressing driving member 31, a shell pressing head 32, a cell pressing head 33 and an elastic member 34. The shell pressing head 32 is arranged opposite to the bearing member 22. The driving end of the lower-pressing driving member 31 is connected with the shell pressing head 32. The cell pressing head 33 is slidably arranged in the shell pressing head 32. The cell pressing head 33 is also arranged opposite to the bearing member 22. The elastic member 34 is arranged in the shell pressing head 32. Two ends of the elastic member 34 abut against the shell pressing head 32 and the cell pressing head 33 respectively.

[0042] The lower-pressing driving member 31 is used to drive the shell pressing head 32 to move to cooperate with the bearing member 22 to press the shell 200. The cell pressing head 33 can cooperate with the bearing member 22 to press the cell 201 in the shell 200 when the shell pressing head 32 cooperates with the bearing member 22 to press the shell 200.

[0043] When the lower-pressing driving member 31 drives the shell pressing head 32 to move away from the bearing member 22, the elastic member 34 abuts against the cell pressing head 33 by elastic force, so that the cell pressing head 33 continues to press the cell 201, and the shell 200 containing the cell 201 continues to be pressed on the bearing member 22, so that the shell pressing head 32 is separated from the shell 200.

[0044] In some embodiments, the lower-pressing driving member 31 is a pneumatic cylinder, but is not limited thereto.

[0045] In some embodiments, the side of the shell pressing head 32 towards the bearing member 22 is provided with an embedding part 321. The embedding part 321 is used to embed the inner side of the shell 200 and abut against the inner side wall of the shell 200 when the shell pressing head 32 presses the shell 200, so as to support the inside of the shell 200. The cell pressing head 33 is slidably arranged in the embedding part 321.

[0046] In some embodiments, the lower-pressing assembly 30 further comprises a telescopic shaft 35 and a first connecting rod 36. The telescopic shaft 35 is connected with the driving end of the lower-pressing driving member 31. The telescopic shaft 35 is connected with the first connecting rod 36 through a bearing, and the first connecting rod 36 can rotate relative to the telescopic shaft 35. The shell pressing head 32 is connected with one end of the first connecting rod 36 away from the telescopic shaft 35.

[0047] The lower-pressing driving member 31 drives the shell pressing head 32 to move downward through the telescopic shaft 35 and the first connecting rod 36, so that the shell pressing head 32 is pressed on the shell 200. When the driving assembly 10 drives the shell 200 to rotate, the shell pressing head 32 and the first connecting rod 36 rotate together with the shell 200 through the first connecting rod 36 connected with the telescopic shaft 35, so that the shell 200 is not damaged due to relative rotation between the shell pressing head 32 and the shell 200.

[0048] In some embodiments, the telescopic shaft 35 is provided with a joint 351. The joint 351 is arranged on the side of the telescopic shaft 35 facing the lower-pressing driving member 31. The driving end of the lower-pressing driving member 31 is movably inserted into the joint 351. The lower-pressing driving member 31 is connected with the telescopic shaft 35 through the joint 351.

[0049] In some embodiments, the rack 21 is provided with a shaft seat 211. The rotating shaft 23 is rotatably arranged in the shaft seat 211, so as to rotate in the shaft seat 211 under the driving of the rotating driving member 11.

[0050] In some embodiments, the lower-pressing assembly 30 further comprises a second connecting rod 37. The shell pressing head 32 is provided with an avoiding groove 322. The avoiding groove 322 is arranged in the embedded part 321 and has an opening facing the bearing member 22. The battery cell pressing head 33 is accommodated in the avoiding groove 322. The second connecting rod 37 penetrates the bottom wall of the avoiding groove 322 and connects the avoiding groove 322 with the battery cell pressing head 33. The elastic member 34 is sleeved on the second connecting rod 37.

[0051] In some embodiments, the second connecting rod 37 is slidably connected with the shell pressing head 32 through a bearing, so that the battery cell pressing head 33 can rotate relative to the shell pressing head 32.

[0052] In some embodiments, the elastic member 34 is a compression spring.

[0053] The lower-pressing rotating mechanism 100 provided by the application can prevent the damage of the battery cell 201 and the separation of the battery cell 201, and can separate the shell 200 from the retracted shell pressing head 32, avoid the adhesion of the shell pressing head 32 to the shell 200 during the retraction of the shell pressing head 32, prevent the shell 200 from being taken away from the carrier 22, and improve the processing efficiency and the production yield.

[0054] Embodiment two

[0055] Referring to Figures 1 to 7 The embodiment also provides a grooving device 900 for grooving the shell 200 of the battery. The grooving device 900 can prevent the shell 200 from being taken away after grooving, and can prevent the damage of the battery cell and the separation of the battery cell, thereby improving the processing efficiency and the production yield.

[0056] Referring to Figure 5 The grooving device 900 comprises the lower-pressing rotating mechanism 100 and a grooving mechanism 300. The lower-pressing rotating mechanism 100 is the lower-pressing rotating mechanism 100 provided in the above embodiment. The lower-pressing rotating mechanism 100 is used for pressing and rotating the shell 200 containing the battery cell 201. The grooving mechanism 300 is used for abutting against the shell 200 to groove the shell 200. A groove is formed on the shell 200, and the groove protrudes into the shell 200 to limit the battery cell 201 in the shell 200.

[0057] Referring to Figure 6 and Figure 7 The grooving mechanism 300 comprises a feeding assembly 40 and a hobbing assembly 50. The hobbing assembly 50 is arranged on the feeding assembly 40. The feeding assembly 40 is used for driving the hobbing assembly 50 to move, so that the hobbing assembly 50 abuts against the shell 200 pressed by the lower-pressing rotating mechanism 100. The hobbing assembly 50 is used for grooving the shell 200 when the shell 200 is rotated by the lower-pressing rotating mechanism 100.

[0058] The feeding assembly 40 comprises a feeding drive 41 and an eccentric cam 42. The eccentric cam 42 is arranged on the driving end of the feeding drive 41. The feeding drive 41 is used to drive the eccentric cam 42 to rotate, so that the eccentric cam 42 abuts against the hob assembly 50 and drives the hob assembly 50 to move towards the housing 200.

[0059] In some embodiments, the feeding drive 41 is a servo motor with a speed reducer, but is not limited thereto.

[0060] The hob assembly 50 comprises a hob seat 51 and a hob 52. The hob groove mechanism 300 further comprises a hob groove frame 301. The hob 52 is rotatably arranged on the hob seat 51. The hob seat 51 is slidably arranged on the hob groove frame 301. The eccentric cam 42 can abut against the hob seat 51 when rotating, so that the hob seat 51 slides on the hob groove frame 301, thereby causing the hob 52 to abut against the housing 200.

[0061] In some embodiments, the hob groove frame 301 is further provided with a sliding rail 302. The hob seat 51 is slidably arranged on the sliding rail 302.

[0062] In some embodiments, the hob assembly 50 further comprises a tension spring 53. One end of the tension spring 53 is connected to the hob seat 51 of the hob assembly 50, and the other end is connected to the eccentric cam 42. The tension spring 53 is used to provide a back pulling force when the eccentric cam 42 rotates away from the hob seat 51, so that the hob seat 51 moves away from the housing 200.

[0063] In some embodiments, the hob groove mechanism 300 further comprises an adjusting assembly 60. The adjusting assembly 60 is connected between the feeding assembly 40 and the hob assembly 50. The adjusting assembly 60 is used to adjust the position of the movement of the hob assembly 50 to adapt to different hobbing requirements.

[0064] Specifically, the adjusting assembly 60 comprises an adjusting seat 61, a first adjusting head 62 and a second adjusting head 63. The hob assembly 50 further comprises a hob pressing block 54. The hob 52 is rotatably arranged on the hob pressing block 54. The adjusting seat 61 is arranged on the hob seat 51. The first adjusting head 62 is adjustably connected to the adjusting seat 61. The second adjusting head 63 is adjustably connected to the first adjusting head 62. The hob pressing block 54 is connected to the second adjusting head 63. The first adjusting head 62 is used to adjust the horizontal position of the second adjusting head 63. The second adjusting head 63 is used to adjust the vertical position of the hob pressing block 54.

[0065] By setting the first adjusting head 62 and the second adjusting head 63, the horizontal stroke and the height of the hob 52 can be adjusted to meet different requirements.

[0066] In some embodiments, the eccentric cam 42 drives the hob seat 51 to slide on the slide rail 302 by abutting against the adjusting seat 61. The adjusting seat 61 is provided with a bearing on one side facing the eccentric cam 42.

[0067] In some embodiments, the hobbing mechanism 300 further comprises a lubricating assembly 70. The lubricating assembly 70 is used to provide lubricating oil for the hob 52 to reduce the friction of the shell being hobbed, reduce the generation of metal debris, and prevent the shell 200 from cracking.

[0068] The lubricating assembly 70 comprises an oil-spraying sponge 71 and an oil box 72. The oil-spraying sponge 71 is arranged in the hob pressing block 54 and abuts against the hob 52. The oil box 72 is in communication with the oil-spraying sponge 71. The oil box 72 is used to inject oil into the oil-spraying sponge 71.

[0069] The hobbing mechanism 300 drives the eccentric cam 42 to rotate by the feed driving member 41, and then the eccentric cam 42 controls the feed of the hob 52 to stabilize the stroke and the feed speed of the hob 52. The horizontal stroke and the vertical stroke of the hob 52 can also be adjusted by the first adjusting head 62 and / or the second adjusting head 63.

[0070] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0071] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A pressing and rotating mechanism for pressing and rotating a housing containing a battery cell, characterized in that, The down-pressing assembly comprises a down-pressing driving member, a shell pressing head, a cell pressing head and an elastic member, the shell pressing head is arranged opposite to the bearing member, the cell pressing head is slidably arranged in the shell pressing head, the cell pressing head is arranged opposite to the bearing member, the elastic member is arranged in the shell pressing head and abuts against the shell pressing head and the cell pressing head at two ends, and the driving end of the down-pressing driving member is connected with the shell pressing head, the down-pressing driving member is used to drive the shell pressing head to move to cooperate with the bearing member to press the shell. The down-pressing assembly further comprises a telescopic shaft and a first connecting rod, the telescopic shaft is connected with the driving end of the down-pressing driving member, the first connecting rod is connected with the shell pressing head, and the telescopic shaft and the first connecting rod are connected through a bearing, when the rotating driving member drives the shell to rotate, the shell pressing head and the first connecting rod rotate together with the shell through the first connecting rod connected with the telescopic shaft. The telescopic shaft is provided with a joint, the joint is arranged on the side of the telescopic shaft facing the down-pressing driving member, the driving end of the down-pressing driving member is movably inserted into the joint, and the down-pressing driving member is connected with the telescopic shaft through the joint. The down-pressing assembly further comprises a second connecting rod, the shell pressing head is provided with an avoiding groove, the avoiding groove is open towards the bearing member, the cell pressing head is accommodated in the avoiding groove, the second connecting rod is connected with the cell pressing head through the avoiding groove, and the elastic member is sleeved on the second connecting rod. The second connecting rod is slidably connected with the shell pressing head through a bearing.

2. The push-down rotation mechanism according to claim 1, wherein The side of the shell pressing head facing the bearing member is provided with an embedding part, the embedding part is used to embed into the inside of the shell when the shell pressing head presses the shell.

3. The push-down rotation mechanism according to claim 1, wherein The down-pressing rotating mechanism further comprises a rotating shaft, the rotating shaft is connected with the driving end of the rotating driving member, and the bearing member is arranged on the rotating shaft.

4. A grooving device, characterized in that The down-pressing rotating mechanism comprises a rolling groove mechanism.

5. The grooving device according to claim 4, characterized in that The rolling groove mechanism comprises a feeding driving member, an eccentric cam and a hobbing assembly, the eccentric cam abuts against the hobbing assembly, the feeding driving member is used to drive the eccentric cam to rotate to drive the hobbing assembly to move towards the shell to perform rolling groove processing on the shell.

6. The grooving device according to claim 5, characterized in that The rolling groove mechanism further comprises a tension spring, one end of the tension spring is connected with the hobbing assembly, and the other end of the tension spring is connected with the eccentric cam.

7. The slotting device of claim 5, wherein The rolling groove mechanism further comprises an oiling sponge and an oil box, the hobbing assembly comprises a rotating hob, the oiling sponge abuts against the hob, and the oil box is used to inject oil to the oiling sponge.

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