Battery fixing mechanism for rotary sealing of cylindrical battery

Abstract

The utility model provides a battery fixing mechanism for rotary sealing of a cylindrical battery. The battery fixing mechanism comprises a rotary sleeve, a pressing and fixing assembly and a clamp, the clamp is mounted in the rotating sleeve; the rotating sleeve is driven by a first driving piece to rotate; the pressing assembly is arranged on the outer side of the rotary sleeve and comprises a rotary pressing air cylinder, a connecting arm and a pressing block, one end of the connecting arm is connected with the tail end of an air cylinder rod of the rotary pressing air cylinder, and the other end of the connecting arm is connected with the pressing block; the pressing block is located above the rotating sleeve. The battery fixing structure provided by the utility model can be matched with a rolling die head to realize rotary sealing, the clamp is mounted in the rotary sleeve, the rotary sleeve rotates through the first driving part so as to enable the clamp to drive the battery to rotate, and the pressing and fixing assembly can press and fix the battery in the clamp from the upper end through the pressing block; therefore, when the battery and the rotary sleeve are concentric and rotate, the battery cannot move up and down, and when the battery rotates, the upper end of the battery shell is extruded through the rolling die head, so that rotary sealing of the battery can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production and processing, in particular to a battery fixing mechanism used for rotating sealing of cylindrical batteries. Background Art

[0002] Power lithium-ion batteries are lithium batteries that are specially used to power motor vehicles. They are also commonly used in power tools, electric toys and other fields. They have the advantages of zero pollution, zero emissions, high energy density, small size and long cycle life. Among them, cylindrical lithium batteries are widely used in power batteries because of their standardized dimensions, very mature production equipment and processing technology.

[0003] In the production process of cylindrical batteries, the lithium battery after injection needs to go through the sealing step. Most of the current cylindrical lithium battery sealing equipment adopts the stamping principle, which uses a clamp to fix the battery and then uses a stamping die to seal and form. This method has the problem that the clamp is subjected to large force and is easy to be damaged. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the utility model provides a battery fixing mechanism for rotating and sealing a cylindrical battery.

[0005] The purpose of the utility model is to provide a battery fixing mechanism for rotating sealing of cylindrical batteries:

[0006] It includes a rotating sleeve, a pressing assembly and a clamp;

[0007] The clamp is installed in the rotating sleeve to clamp the battery;

[0008] The rotating sleeve is driven to rotate by the first driving member;

[0009] The pressing assembly is arranged outside the rotating sleeve, and the pressing assembly includes a rotating pressing cylinder, a connecting arm and a pressing block, one end of the connecting arm is connected to the cylinder rod end of the rotating pressing cylinder, and the other end is connected to the pressing block;

[0010] The pressing block is located above the rotating sleeve.

[0011] In a preferred technical solution of the utility model, the first driving member, the rotary pressing cylinder and the rotary sleeve are all mounted on the frame;

[0012] The rotating sleeve is vertically arranged and rotatably connected to the frame;

[0013] The first driving member is a motor.

[0014] In a preferred technical solution of the utility model, the clamp includes a clamp and a clamp opening assembly for driving the clamp to open and close.

[0015] In a preferred technical solution of the utility model, a first conical surface is provided on the outer periphery of the lower end of the clamp, and the clamp comprises at least two clamping blocks evenly distributed around the circumference, and the inner side surface of each clamping block forms a region for accommodating and clamping the battery;

[0016] The clamping block is installed at the upper end of the rotating sleeve, and the clamping block is slidably matched with the rotating sleeve along the radial direction of the rotating sleeve, and a spring is arranged between the clamping block and the rotating sleeve;

[0017] The clamp opening assembly includes a sleeve and a lifting assembly for driving the sleeve to rise and fall;

[0018] The sleeve is sleeved in the rotating sleeve, and the inner wall of the upper end of the sleeve is provided with a second conical surface matching the first conical surface;

[0019] The sleeve, the first cone surface, the second cone surface and the rotating sleeve are coaxially arranged.

[0020] In a preferred technical solution of the utility model, a slide bar which is slidably matched with the rotating sleeve is arranged on the outer side of the clamping block, and the slide bar is arranged radially along the rotating sleeve, and the slide bar passes through the rotating sleeve;

[0021] The spring sleeve is located outside the rotating sleeve, one end of the spring is connected to the end of the slide rod, and the other end is connected to the rotating sleeve.

[0022] In a preferred technical solution of the utility model, the lifting assembly includes a lifting plate and a second driving member;

[0023] The lifting plate is slidably matched with the frame in the vertical direction, and the sleeve is rotatably mounted on the lifting plate;

[0024] The second driving member is connected to the lifting plate to drive the lifting plate to move up and down.

[0025] In a preferred technical solution of the utility model, a battery cup is coaxially arranged in the center of the sleeve, and an ejection assembly is installed on the frame below the battery cup, and the ejection assembly is connected to the battery cup to drive the battery cup to rise and fall.

[0026] In a preferred technical solution of the utility model, the ejection assembly includes an ejection cylinder and a connecting rod, the battery holder cup is rotatably mounted on the upper end of the connecting rod, and the lower end of the connecting rod is fixedly connected to the cylinder rod of the ejection cylinder.

[0027] In a preferred technical solution of the utility model, the pressing block includes an adjusting rod and a pressing rod coaxially arranged;

[0028] The upper end of the pressure rod is rotatably connected to the lower end of the adjustment rod.

[0029] In a preferred technical solution of the utility model, the outer circumference of the adjusting rod is provided with a thread, the adjusting rod is externally threaded with an adjusting screw sleeve, and the adjusting screw sleeve is rotatably mounted on the connecting arm.

[0030] The beneficial effects of the utility model are:

[0031] A battery fixing structure adapted for rotary sealing is provided, wherein a clamp is installed in a rotary sleeve, and the rotary sleeve is rotated by a first driving member so that the clamp drives the battery to rotate, and a pressing assembly can press the battery in the clamp from the upper end through a pressing block, so that the battery is concentric with the rotary sleeve and the battery does not move up and down when rotating, and when the battery rotates, the upper end of the battery shell is squeezed by a rolling die head to realize rotary sealing of the battery. This mechanism can cooperate with the rolling die head to realize rotary sealing, and compared with stamping sealing and rotary sealing, the clamp is subjected to less force and is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a battery fixing mechanism for rotating sealing of cylindrical batteries.

[0033] Figure 2 It is a structural cross-sectional view of the rotating sleeve.

[0034] Figure 3 This is a diagram showing the battery being clamped and pressed by the pressed components.

[0035] Figure 4 It is a schematic diagram of the installation structure of the pressing block.

[0036] Reference numerals:

[0037] 100, frame; 200, rotating sleeve; 210, first driving member; 300, clamp; 310, clamping block; 311, sliding rod; 320, spring; 400, rolling die; 500, moving assembly; 510, first linear module; 520, second linear module; 600, battery; 700, pressing assembly; 710, rotating pressing cylinder; 720, connecting arm; 730, adjusting rod; 740, pressing rod; 750, adjusting screw sleeve; 800, lifting plate; 810, second driving member; 820, guide rod; 830, sleeve; 900, ejection assembly; 910, battery tray; 920, connecting rod; 930, ejection cylinder. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0039] In the production process of cylindrical batteries, the lithium battery after injection needs to go through the sealing step. Most of the current cylindrical lithium battery sealing equipment adopts the stamping principle, which uses a clamp to fix the battery and then uses a stamping die to seal and form. This method has the problem that the clamp is subjected to large force and is easy to be damaged.

[0040] Example

[0041] In view of the above problems, this embodiment provides a battery fixing mechanism for rotating and sealing cylindrical batteries.

[0042] like Figure 1-4 As shown, a battery fixing mechanism for rotating sealing of cylindrical batteries:

[0043] It includes a rotating sleeve 200, a pressing assembly 700 and a clamp 300;

[0044] The clamp 300 is installed in the rotating sleeve 200 to clamp the battery 600;

[0045] The rotating sleeve 200 is driven to rotate by the first driving member 210;

[0046] The pressing assembly 700 includes a rotary pressing cylinder 710, a connecting arm 720 and a pressing block, wherein one end of the connecting arm 720 is connected to the cylinder rod end of the rotary pressing cylinder 710, and the other end is connected to the pressing block;

[0047] The pressing block is located above the rotating sleeve 200, and the function of the pressing assembly 700 is to press the battery 600 from the upper end, so that the battery 600 is concentric with the rotating sleeve 200 and the battery 600 does not move up and down during rotation, thereby avoiding the sealing effect affected by the movement of the battery 600 during rotation sealing.

[0048] In this embodiment, the battery fixing mechanism for rotating the cylindrical battery is cooperated with the rolling die 400 for rotating sealing, and the rolling die 400 is rotatably mounted on the moving assembly 500. Specifically, the rolling die 400 is rotatably cooperated with the moving assembly 500 via a bearing, and is used to roll and seal the upper edge of the battery 600. The moving assembly 500 can drive the rolling die 400 to move relative to the rotating sleeve 200. Specifically, the moving assembly 500 can drive the rolling die 400 to move in the horizontal direction and the vertical direction.

[0049] The present design provides a battery fixing structure adapted for rotary sealing, wherein the clamp is installed in a rotary sleeve, and the rotary sleeve is rotated by a first driving member so that the clamp drives the battery to rotate, and the pressing assembly can press the battery in the clamp from the upper end through a pressing block, so that the battery is concentric with the rotary sleeve and the battery does not move up and down when rotating, and the rotary sealing of the battery can be achieved by squeezing the upper end of the battery shell through a rolling die when the battery rotates. The present mechanism can cooperate with the rolling die to achieve rotary sealing, and compared with stamping sealing and rotary sealing, the clamp is subjected to less force and is not easily damaged.

[0050] The steps of using the battery fixing mechanism for rotary sealing of cylindrical batteries in conjunction with the rolling die 400 to perform rotary sealing processing are as follows:

[0051] Place the battery 600 to be sealed into the fixture 300;

[0052] The pressing assembly 700 presses the battery 600 in the fixture 300;

[0053] The first driving member 210 is started, and the rotating sleeve 200 is rotated by the first driving member 210, so that the clamp 300 drives the battery 600 to rotate;

[0054] The moving assembly 500 drives the rolling die 400 to move to a position, so that the rolling die 400 contacts the upper end of the battery 600 shell, and the battery 600 and the rolling die 400 rotate together. During the rotation, the rolling die 400 squeezes the upper end of the battery 600 shell to seal it;

[0055] The first driving member 210 is turned off, and the pressing assembly 700 is reset to no longer press the battery 600 in the clamp 300. After the rotating sleeve 200 stops rotating, the sealed battery 600 is taken out of the clamp 300.

[0056] In this embodiment, the moving assembly 500, the pressing assembly 700 and the rotating sleeve 200 are all mounted on the frame 100;

[0057] The rotating sleeve 200 is vertically arranged and rotatably connected to the frame 100;

[0058] The first driving member 210 is a motor.

[0059] In this embodiment, the motor and the rotating sleeve 200 are belt-driven, chain-driven or gear-driven. Preferably, the motor and the rotating sleeve 200 are belt-driven.

[0060] In this embodiment, the clamp 300 includes a clamp and a clamp opening assembly for driving the clamp to open and close;

[0061] The outer periphery of the lower end of the clamp is provided with a first conical surface, and the clamp comprises at least two clamping blocks 310 evenly distributed around the circumference, and the inner side surface of each clamping block 310 forms a region for accommodating and clamping the battery 600;

[0062] The clamp block 310 is installed at the upper end of the rotating sleeve 200. The clamp block 310 is slidably matched with the rotating sleeve 200 along the radial direction of the rotating sleeve 200. A spring 320 is provided between the clamp block 310 and the rotating sleeve 200.

[0063] The clamp opening assembly includes a sleeve 830 and a lifting assembly for driving the sleeve 830 to rise and fall;

[0064] The sleeve 830 is sleeved in the rotating sleeve 200. The inner wall of the upper end of the sleeve 830 is provided with a second cone surface matched with the first cone surface. When the sleeve 830 moves upward, after the first cone surface contacts the second cone surface, the clamping block 310 moves toward the inside of the rotating sleeve 200 through the action of the inclined surface during the upward movement of the sleeve 830 to achieve the clamping of the battery 600. At the same time, the spring 320 is compressed and deformed; when the sleeve 830 moves downward, the clamping block 310 moves to the outside of the rotating sleeve 200 and resets under the elastic force of the spring 320;

[0065] The sleeve 830, the first cone surface, the second cone surface and the rotating sleeve 200 are coaxially arranged;

[0066] The clamp 300 and the clamp opening assembly of this design are both arranged inside the rotating sleeve 200, making the overall structure more compact and facilitating reducing the volume of the equipment.

[0067] In this embodiment, in order to ensure the movement stability of the clamping block 310, a sliding rod 311 that slides with the rotating sleeve 200 is provided on the outer side of the clamping block 310. The sliding rod 311 is arranged radially along the rotating sleeve 200, and the sliding rod 311 passes through the radial guide hole on the rotating sleeve 200.

[0068] The spring 320 is located outside the rotating sleeve 200, one end of the spring 320 is connected to the end of the sliding rod 311, and the other end is connected to the rotating sleeve 200;

[0069] Exemplarily, an end plate is installed at the end of the sliding rod 311 , one end of the spring 320 is connected to the end plate, and the other end is connected to the outer wall of the rotating sleeve 200 .

[0070] In this embodiment, the lifting assembly includes a lifting plate 800 and a second driving member 810;

[0071] The lifting plate 800 is slidably matched with the frame 100 in the vertical direction, and the sleeve 830 is rotatably mounted on the lifting plate 800, and the sleeve 830 and the lifting plate 800 are matched via a bearing;

[0072] The second driving member 810 is connected to the lifting plate 800 to drive the lifting plate 800 to move up and down.

[0073] In this embodiment, the second driving member 810 is a lifting cylinder or an electric cylinder. The four corners of the lifting plate 800 are provided with guide vertical holes, and the guide vertical holes are penetrated by guide rods 820, and the guide rods 820 are installed on the frame 100. In actual application, in order to ensure the smooth movement of the lifting plate 800 and avoid the rotating sleeve 200 in the middle, a second driving member 810 is provided on each side of the rotating sleeve 200, and the two second driving members 810 are symmetrically arranged with the axis of the rotating sleeve 200 as the center.

[0074] In this embodiment, a battery holder 910 is coaxially disposed in the center of the sleeve 830 , and the top surface of the battery holder 910 has a positioning notch for accommodating the lower end of the battery 600 ;

[0075] The frame 100 is provided with an ejector assembly 900 below the battery holder 910, and the ejector assembly 900 is used to move the battery 600 into or out of the fixture 300, so as to achieve clamping and feeding before sealing and discharging of the battery 600 after sealing;

[0076] The ejection assembly 900 includes an ejection cylinder 930 and a connecting rod 920. The ejection cylinder 930 is vertically placed, and the battery cup 910 is rotatably installed on the upper end of the connecting rod 920. The battery cup 910 and the connecting rod 920 are matched via a bearing, and the battery cup 910 can rotate axially around the connecting rod 920. The lower end of the connecting rod 920 is fixedly connected to the cylinder rod of the ejection cylinder 930.

[0077] In this embodiment, the pressing block includes an adjusting rod 730 and a pressing rod 740 which are coaxially arranged;

[0078] The upper end of the pressure rod 740 is rotatably connected to the lower end of the adjustment rod 730, and the pressure rod 740 and the adjustment rod 730 are matched via a bearing;

[0079] The adjusting rod 730 is provided with a thread on its outer periphery, and an adjusting screw sleeve 750 is screwed onto the outer side of the adjusting rod 730. The adjusting screw sleeve 750 can be rotatably mounted on the connecting arm 720. The connecting arm 720 is provided with a mounting hole, and the adjusting screw sleeve 750 is inserted into the mounting hole. When in use, according to the height size of the battery 600 and the downward pressing stroke of the rotating pressing cylinder 710, the position of the pressing block can be adjusted up and down by rotating the adjusting screw sleeve 750, so that the pressing block can stably press the top surface of the battery 600.

[0080] In this embodiment, the moving assembly 500 includes a first linear module 510 and a second linear module 520;

[0081] The first linear module 510 is installed on the frame 100, and the first linear module 510 is arranged along the radial direction of the rotating sleeve 200;

[0082] The second linear module 520 is installed at the moving end of the first linear module 510, and the second linear module 520 is arranged along the axial direction of the rotating sleeve 200;

[0083] The rolling die head 400 is rotatably installed on the movable end of the second linear module 520, and the axial direction of the rolling die head 400 is parallel to the horizontal direction. Preferably, the movable end of the second linear module 520 is provided with a horizontal shaft portion, and the rolling die head 400 is installed on the horizontal shaft portion. The rolling die head 400 and the horizontal shaft portion are matched via a bearing, and the horizontal shaft portion is arranged radially along the rotating sleeve 200.

[0084] The first linear module 510 can accurately control the horizontal position of the rolling die 400, and the second linear module 520 can accurately control the vertical position of the rolling die 400. The position of the rolling die 400 can be accurately controlled by the first linear module 510 and the second linear module 520, so that after the battery 600 to be sealed and the rolling die 400 come into contact and rotate together, the rolling die 400 can perform a precise seal on the battery 600.

[0085] This embodiment also provides a cylindrical battery sealing method:

[0086] The battery fixing mechanism for rotating and sealing cylindrical batteries is used to perform sealing processing;

[0087] The following steps are involved:

[0088] Loading: Place the battery 600 into the battery holder 910;

[0089] Feeding: The ejection assembly 900 drives the battery 600 support cup to move down to the position, so that the battery 600 enters the fixture 300;

[0090] Clamping: The lifting assembly drives the sleeve 830 to move upward to a position, so that the sleeve 830 drives the clamp to hold the battery 600 tightly via the second conical surface;

[0091] Pressing: The pressing assembly 700 is actuated so that the lower end of the pressing rod 740 provides a pressing force to the middle part of the upper end surface of the battery 600;

[0092] One rolling process: the first driving member 210 drives the rotating sleeve 200 to rotate, so that the battery 600 rotates, and then the moving assembly 500 drives the rolling die 400 to move to the first processing position, and the battery 600 and the rolling die 400 rotate together, so that the lower end of the rolling die 400 squeezes the upper end of the battery 600 shell from the horizontal direction, and the upper end of the battery 600 shell is folded inward to achieve pre-sealing;

[0093] Secondary rolling process: the moving assembly 500 drives the rolling die 400 to move to the second processing position, and the moving assembly 500 drives the rolling die 400 to move downward, so that the lower end of the rolling die 400 squeezes the upper end of the battery 600 shell from the horizontal and vertical directions, and the upper end of the battery 600 shell is folded down to achieve sealing;

[0094] Discharging preparation: After the sealing is completed, the first driving member 210 drives the rotating sleeve 200 to stop rotating, the moving assembly 500 drives the rolling die 400 to reset, the pressing assembly 700 to reset, and the pressing rod 740 to move out. Then, the lifting assembly drives the sleeve 830 to move down and reset, so that the chuck is opened and cut off;

[0095] Ejection: The ejection assembly 900 drives the battery holder 910 to move upward to a position, and ejects the sealed battery 600 out of the rotating sleeve 200.

[0096] It should be noted that the first rolling process is to fold the upper end of the battery 600 shell inward, and the second rolling process is to bend the upper end of the inwardly folded battery 600 shell downward.

[0097] It should be noted that the second molding surface and the first molding surface are arranged back to back, and a molding ring portion is arranged on the outer periphery of the rolling die 400. The first molding surface is the end surface of the molding ring portion facing the rotating sleeve 200, and the second molding surface is the end surface of the molding ring portion facing away from the rotating sleeve 200. When in the first processing position, the first molding surface of the rolling die 400 contacts the upper outer wall of the outer shell of the battery 600. When in the second processing position, the second molding surface of the rolling die 400 contacts the upper outer wall of the outer shell of the battery 600.

[0098] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a restriction. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in the subsequent accompanying drawings.

[0099] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0100] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0101] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0102] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery fixing mechanism for rotating and sealing cylindrical batteries, characterized in that: It includes a rotating sleeve, a pressing assembly and a clamp; The clamp is installed in the rotating sleeve to clamp the battery; The rotating sleeve is driven to rotate by the first driving member; The pressing assembly is arranged outside the rotating sleeve, and the pressing assembly includes a rotating pressing cylinder, a connecting arm and a pressing block, one end of the connecting arm is connected to the cylinder rod end of the rotating pressing cylinder, and the other end is connected to the pressing block; The pressing block is located above the rotating sleeve; The first driving member, the rotary pressing cylinder and the rotary sleeve are all mounted on the frame; The rotating sleeve is vertically arranged and rotatably connected to the frame; The first driving member is a motor; The clamp comprises a clamp and a clamp opening assembly for driving the clamp to open and close.

2. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 1, characterized in that: The outer periphery of the lower end of the clamp is provided with a first conical surface, and the clamp comprises at least two clamping blocks evenly distributed around the circumference, and the inner side surface of each clamping block forms a region for accommodating and clamping the battery; The clamping block is installed at the upper end of the rotating sleeve, and the clamping block slides with the rotating sleeve along the radial direction of the rotating sleeve, and a spring is arranged between the clamping block and the rotating sleeve; The clamp opening assembly includes a sleeve and a lifting assembly for driving the sleeve to rise and fall; The sleeve is sleeved in the rotating sleeve, and the inner wall of the upper end of the sleeve is provided with a second conical surface matching the first conical surface; The sleeve, the first cone surface, the second cone surface and the rotating sleeve are coaxially arranged.

3. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 2, characterized in that: The outer side of the clamp block is provided with a slide bar which is slidably matched with the rotating sleeve, and the slide bar is arranged radially along the rotating sleeve and passes through the rotating sleeve; The spring sleeve is located outside the rotating sleeve, one end of the spring is connected to the end of the slide rod, and the other end is connected to the rotating sleeve.

4. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 3 is characterized in that: The lifting assembly includes a lifting plate and a second driving member; The lifting plate is slidably matched with the frame in the vertical direction, and the sleeve is rotatably mounted on the lifting plate; The second driving member is connected to the lifting plate to drive the lifting plate to move up and down.

5. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 2, characterized in that: A battery cup is coaxially arranged at the center of the sleeve, and an ejection assembly is installed on the frame below the battery cup. The ejection assembly is connected to the battery cup to drive the battery cup to rise and fall.

6. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 5, characterized in that: The ejection assembly comprises an ejection cylinder and a connecting rod. The battery support cup is rotatably mounted on the upper end of the connecting rod. The lower end of the connecting rod is fixedly connected to the cylinder rod of the ejection cylinder.

7. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 1, characterized in that: The pressing block comprises an adjusting rod and a pressing rod which are coaxially arranged; The upper end of the pressure rod is rotatably connected to the lower end of the adjustment rod.

8. The battery fixing mechanism for rotating sealing of cylindrical batteries according to claim 7, characterized in that: The outer periphery of the adjusting rod is provided with a thread, the outer side of the adjusting rod is threaded with an adjusting screw sleeve, and the adjusting screw sleeve is rotatably mounted on the connecting arm.

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