CN220592177U

CN220592177U - Battery core shell-entering press-fitting mechanism

Info

Publication number: CN220592177U
Application number: CN202321770331.4U
Authority: CN
Inventors: 何金超; 关振州; 胡毅铭
Original assignee: Rept Battero Energy Co Ltd
Current assignee: Rept Battero Energy Co Ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-03-15
Anticipated expiration: 2033-07-06

Abstract

The utility model provides a battery cell shell-entering press-fitting mechanism, which comprises a rack, wherein a positioning mechanism, a thrust mechanism and a tail mechanism are arranged on the rack, the tail mechanism comprises a first clamping component and a first thrust component, the first clamping component is used for clamping a battery cell shell, and the first thrust component is used for pushing the first clamping component to move along a direction approaching or separating from the positioning mechanism; the positioning mechanism is used for correcting the position of the top cover, and the pushing mechanism is used for pressing the top cover onto the battery cell shell. The electric core shell is clamped by the first clamping component, the first pushing component pushes the first clamping component to move towards the direction close to the positioning mechanism until the electric core shell is pushed into the positioning mechanism, the positioning mechanism positions the top cover at the centering position of the opening of the electric core shell by clamping the top cover, and then the pushing mechanism applies external force to the top cover to push the top cover into the aluminum shell, so that the positioning press-fitting of the top cover and the electric core shell is realized, and the precision and the product quality of the press-fitting are improved.

Description

Battery core shell-entering press-fitting mechanism

Technical Field

The utility model relates to the field of battery cell assembly equipment, in particular to a battery cell shell-entering press-fitting mechanism.

Background

In recent years, the secondary battery industry has achieved remarkable development results thanks to the rapid development of the new energy industry.

In the process of manufacturing the secondary battery, the steps of slurry combination, coating, sheet making, winding, assembly, laser welding, liquid injection, formation, sealing, capacity division and the like are generally required. The battery is assembled mainly by the following steps: and carrying the battery cell into the battery cell shell, and covering the top cover on the battery cell shell.

The current chinese patent application document of publication No. CN216120412U discloses a shell device and a shell production line are gone into to electric core, wherein the shell device is gone into to electric core includes the base, drive assembly that drive base goes up and down and along first direction set gradually first support piece, guide and second support piece on the base, first support piece is used for supporting the electric core shell, the guide includes continuous clamping part and guide, the clamping part is close to first support piece setting, be used for prescribing a limit to the electric core shell, the guide is close to the setting of second support piece, be used for the electric core direction, the second support piece is used for supporting the electric core.

In the prior art, the calibration precision of the press-fitting top cover of the battery core shell-entering device is insufficient, the situation that an aluminum shell is damaged and the top cover is deformed easily occurs during press-fitting, and the situation that the top cover is to be improved exists.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a battery cell shell-entering press-fitting mechanism.

The utility model provides a battery cell shell-entering press-fitting mechanism, which comprises a rack, wherein a positioning mechanism, a thrust mechanism and a tail mechanism are arranged on the rack, the tail mechanism comprises a first clamping component and a first thrust component, the first clamping component is used for clamping a battery cell shell, and the first thrust component is used for pushing the first clamping component to move along a direction approaching or separating from the positioning mechanism; the positioning mechanism is used for correcting the position of the top cover, and the pushing mechanism is used for pressing the top cover onto the battery cell shell.

Preferably, the tail mechanism further comprises a first mounting plate, the first clamping assembly comprises a base plate and side clamping cylinders, the base plate is slidably mounted on the first mounting plate, the sliding direction of the base plate is parallel to the direction of the base plate, which is close to or far away from the positioning mechanism, and the side clamping cylinders are at least arranged at intervals on the base plate.

Preferably, the first thrust component comprises a tail positioning cylinder, the tail positioning cylinder is fixedly installed on the first mounting plate, a piston rod of the tail positioning cylinder is connected with the base plate, and the length direction of the piston rod of the tail positioning cylinder is parallel to the sliding direction of the base plate.

Preferably, the positioning mechanism comprises a second mounting plate, the plane of the second mounting plate is perpendicular to the movement direction of the first clamping assembly, and the second mounting plate allows the battery cell housing to pass through; the second mounting plate is provided with a plurality of adjusting plates in a sliding manner, and any adjusting plate moves along a direction close to or far away from the center of the second mounting plate.

Preferably, a linear guide rail is arranged between any adjusting plate and the second mounting plate, and the length direction of any linear guide rail is parallel to the movement direction of the corresponding adjusting plate; and the second mounting plate is also provided with a linear driving device for driving the adjusting plate to move, and the linear driving device is correspondingly arranged with the adjusting plate.

Preferably, the adjusting plate comprises a long-side adjusting plate and a short-side adjusting plate, wherein two long-side adjusting plates are arranged on the second mounting plate at intervals, two short-side adjusting plates are arranged on the second mounting plate at intervals, and the long-side adjusting plates are all arranged adjacent to the short-side adjusting plates.

Preferably, the thrust mechanism comprises a third mounting plate, a pressure head assembly and a driving assembly, wherein the pressure head assembly is slidably mounted on the third mounting plate, and the driving assembly drives the pressure head assembly to move along a direction approaching or separating from the positioning mechanism.

Preferably, a sliding rail is arranged between the pressure head assembly and the third mounting plate, and the length direction of the sliding rail is parallel to the movement direction of the pressure head assembly.

Preferably, the pressure head assembly comprises a supporting plate, a pressing plate and a reset assembly, wherein the supporting plate is in sliding connection with a sliding rail on the third mounting plate, the reset assembly is arranged on the supporting plate, and the pressing plate is connected with one end, close to the positioning mechanism, of the reset assembly.

Preferably, the reset assembly comprises a movable mandrel and a reset spring, one end of the movable mandrel, which is close to the positioning mechanism, is connected with the pressing plate, one end of the movable mandrel, which is away from the positioning mechanism, is connected with the reset spring, and the central axis of the reset spring is collinear with the central axis of the movable mandrel.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the first clamping component clamps the battery cell shell, the first thrust component pushes the battery cell shell into the positioning mechanism, the positioning mechanism positions the top cover at the central position of the opening of the battery cell shell through clamping the top cover, and then the thrust mechanism applies external force to the top cover to push the top cover into the battery cell shell, so that the positioning press-fitting of the battery cell shell and the top cover is realized, and the improvement of the press-fitting precision and the product quality is facilitated.

2. According to the utility model, the two long-side locating plates and the two short-side locating plates are used for respectively clamping the periphery of the top cover, so that the space position of the top cover is adjusted, the top cover is positioned at the center of the opening of the battery cell shell, the accuracy of press mounting is improved, and the structure is simple.

3. According to the utility model, the reset spring is arranged, when the pressing plate works, the reset spring is compressed to play a role of buffering, after the pressing is finished, the pressing plate is separated from the top cover, and the pressing plate is reset under the action of the reset spring, so that the vibration of the pressing plate when the pressing plate is contacted with the top cover is reduced, and the pressing quality is improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of the whole structure of a press-fitting mechanism according to the present utility model;

FIG. 2 is a schematic diagram of the overall structure of a tail mechanism embodying the present utility model;

FIG. 3 is a schematic view of the overall structure of a positioning mechanism according to the present utility model;

FIG. 4 is a schematic view of the overall structure of a thrust mechanism embodying the present utility model;

fig. 5 is a cross-sectional view of a side structure of a thrust mechanism embodying the present utility model.

Reference numerals:

long-side cylinder 23 of tail mechanism 1

Short-side adjusting plate 24 of first mounting plate 11

Short-side cylinder 25 of base plate 12

Thrust mechanism 3 of side clamping cylinder 13

Side roof 14 platen 31

Gravity sensor 32 of tail positioning cylinder 15

Positioning cylinder mounting plate 16 thrust cylinder 33

Positioning plate 17 return spring 34

Movable core shaft 35 of connecting groove 18

Third mounting plate 36 of connection block 19

Positioning mechanism 2 support plate 37

Second mounting plate 21 frame 4

Long side adjusting plate 22

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

As shown in fig. 1 and fig. 2, the battery core shell-entering press-fitting mechanism provided by the utility model comprises a frame 4, wherein a positioning mechanism 2, a thrust mechanism 3 and a tail mechanism 1 are arranged on the frame 4, the tail mechanism 1 comprises a first clamping component and a first thrust component, the first clamping component is used for clamping a battery core shell, and the first thrust component is used for pushing the first clamping component to move along a direction approaching or separating from the positioning mechanism 2. The positioning mechanism 2 is used for correcting the position of the top cover, and the pushing mechanism 3 is used for pressing the top cover onto the battery cell shell.

During press fitting, the battery cell is placed in the battery cell shell, then the battery cell shell is placed in the tail mechanism 1, the battery cell shell is clamped by the first clamping assembly, the first clamping assembly is pushed to move in the direction close to the positioning mechanism 2 by the first pushing assembly until the battery cell shell is pushed into the positioning mechanism 2, the positioning mechanism 2 positions the top cover at the central position of the opening of the battery cell shell through the clamping top cover, and then the top cover is pressed and fitted onto the battery cell shell by the pushing mechanism 3 applying external force to the top cover.

As shown in fig. 2, specifically, the tail mechanism 1 further includes a first mounting plate 11, the first clamping assembly includes a base plate 12 and side clamping cylinders 13, the base plate 12 is slidably mounted on the first mounting plate 11, the sliding direction of the base plate 12 is parallel to the direction in which the base plate 12 approaches or separates from the positioning mechanism 2, and at least two side clamping cylinders 13 are disposed at opposite intervals on the base plate 12.

The application provides a feasible technical scheme which is as follows: the side clamping cylinders 13 are arranged on the base plate 12 at opposite intervals, further, the first mounting plate 11 is horizontally and fixedly arranged on the frame 4 through a fastener, the base plate 12 is slidably connected with the first mounting plate 11 through a sliding rail, and the length direction of the sliding rail is parallel to the direction of the base plate 12 approaching or separating from the positioning mechanism 2, so that the sliding installation of the base plate 12 on the first mounting plate 11 is realized. Furthermore, the number of the sliding rails can be one or a plurality of parallel sliding rails, and the specific number of the sliding rails can be selected according to actual situations.

The side clamping cylinders 13 are each fixedly mounted on both sides of the base plate 12 perpendicular to the moving direction of the base plate 12, and the base plate 12 allows the movable ends of the two side clamping cylinders 13 to move in directions approaching or moving away from each other. The movable ends of the two side clamping cylinders 13 are vertically and fixedly connected with side top plates 14, and the sectional area of the side top plates 14 is larger than that of the movable ends of the clamping cylinders 13 in the vertical direction, so that the contact area between the side clamping cylinders 13 and the battery cell shell is increased. The cushion blocks are fixedly connected to one sides, deviating from the side clamping air cylinders 13 connected with the side top plates 14, of the side top plates, and damage to the battery cell housing caused by the side clamping air cylinders 13 when clamping the battery cell housing can be further reduced.

The first thrust component comprises a tail positioning cylinder 15, the tail positioning cylinder 15 is fixedly arranged on the first mounting plate 11, a positioning cylinder mounting plate 16 is vertically fixed on the first mounting plate 11 through bolts, the tail positioning cylinder 15 is fixedly connected with the positioning cylinder mounting plate 16, a piston rod of the tail positioning cylinder 15 penetrates through the positioning cylinder mounting plate 16 to be connected with the base plate 12, and the length direction of a piston rod of the tail positioning cylinder 15 is parallel to the sliding direction of the base plate 12. One possible implementation is: one side of the base plate 12 close to the tail positioning cylinder 15 is vertically and fixedly connected with a positioning plate 17, one side of the positioning plate 17 close to the tail positioning cylinder 15 is provided with a connecting groove 18, the movable end of a piston rod of the tail positioning cylinder 15 is provided with a connecting block 19, and the connecting block 19 is embedded and installed in the connecting groove 18 to realize the fastening connection of the piston rod of the tail positioning cylinder 15 and the base plate 12. It should be noted that, the fastening connection manner of the base plate 12 and the positioning plate 17 may be any plate-to-plate connection manner in the prior art, for example: welded connection, screw connection, glue joint, etc.

As shown in fig. 3, more specifically, the positioning mechanism 2 includes a second mounting plate 21, the second mounting plate 21 is vertically and tightly mounted on the frame 4, a plane where the second mounting plate 21 is located is perpendicular to a movement direction of the first clamping assembly, the second mounting plate 21 allows the battery cell housing to pass through, specifically, a through hole is formed in the middle of the second mounting plate 21, the shape of the through hole in the middle of the second mounting plate 21 is similar to the shape of the cross section of the battery cell housing, and the size of the through hole in the middle of the second mounting plate 21 is larger than the size of the cross section of the battery cell housing, so that the second mounting plate 21 allows the battery cell housing to pass through.

The second mounting plate 21 is slidably provided with a plurality of adjusting plates, and any one of the adjusting plates moves in a direction approaching or separating from the center position of the second mounting plate 21. A linear guide rail is arranged between any adjusting plate and the second mounting plate 21, and the length direction of any linear guide rail is parallel to the movement direction of the corresponding adjusting plate. The second mounting plate 21 is further provided with a linear driving device for driving the adjusting plate to move, and the linear driving device is correspondingly arranged with the adjusting plate.

For the specific mounting structure of the adjusting plate on the second mounting plate 21, this application proposes a feasible embodiment as follows: the regulating plate includes long limit regulating plate 22 and minor face regulating plate 24, and long limit regulating plate 22 is provided with two at the relative interval on second mounting panel 21, and the minor face regulating plate 24 is provided with two at the relative interval on second mounting panel 21, and long limit regulating plate 22 all sets up with the minor face regulating plate 24 is adjacent. Two long side adjusting plates 22 each act on the long side of the top cover, and two short side adjusting plates 24 each act on the short side of the top cover. The linear driving device comprises a long-side air cylinder 23 and a short-side air cylinder 25, wherein one long-side air cylinder 23 is respectively arranged on the upper side and the lower side of the second mounting plate 21, the movable end of the output shaft of any long-side air cylinder 23 is fixedly connected with the corresponding long-side adjusting plate 22 through a floating joint, one short-side air cylinder 25 is respectively arranged on the left side and the right side of the second mounting plate 21, and the movable end of the output shaft of any short-side air cylinder 25 is fixedly connected with the corresponding short-side adjusting plate 24 through a floating joint. Preferably, the long side cylinder 23 and the short side cylinder 25 are ultra-thin cylinders.

The cell shell is pushed into the positioning mechanism 2, two long-side air cylinders 23 respectively drive two long-side adjusting plates 22 to clamp the top cover, two short-side air cylinders 25 respectively drive two short-side adjusting plates 24 to clamp the top cover, and the space position of the top cover is adjusted through the two long-side adjusting plates 22 and the two short-side adjusting plates 24 to position the top cover at the central position of the opening of the cell shell. To protect the top cover, inserts made of flexible material may be installed on the sides of the two long side adjustment plates 22 and the two short side adjustment plates 24, respectively, which are in contact with the top cover.

As shown in fig. 4 and fig. 5, in particular, the thrust mechanism 3 may adopt any linear reciprocating structure in the prior art, and this application proposes a preferred technical solution: the thrust mechanism 3 comprises a third mounting plate 36, a pressure head assembly and a driving assembly, wherein the third mounting plate 36 is horizontally and fixedly arranged on the frame 4, the pressure head assembly is slidably arranged on the third mounting plate 36, and the driving assembly drives the pressure head assembly to move along the direction approaching or separating from the positioning mechanism 2. A slide rail is disposed between the ram assembly and the third mounting plate 36, with the length direction of the slide rail being parallel to the direction of movement of the ram assembly. The drive assembly may be a thrust cylinder 33, the thrust cylinder 33 being mounted on a third mounting plate 36.

The pressure head subassembly includes backup pad 37, clamp plate 31 and reset subassembly, and backup pad 37 and the slide rail sliding connection on the third mounting panel 36 reset subassembly sets up on backup pad 37, and clamp plate 31 is connected with reset subassembly one end that is close to positioning mechanism 2. The supporting plate 37 is provided with a mounting seat, the resetting component is mounted in the mounting seat, and the resetting component is in sliding fit with the inner wall of the mounting seat.

The reset assembly comprises a movable mandrel 35 and a reset spring 34, wherein one end of the movable mandrel 35, which is close to the positioning mechanism 2, extends out of the mounting seat, one end of the movable mandrel 35, which is close to the positioning mechanism 2, is connected with the pressing plate 31, one end of the movable mandrel 35, which is away from the positioning mechanism 2, is connected with the reset spring 34, and the central axis of the reset spring 34 is collinear with the central axis of the movable mandrel 35. When the pressing plate 31 works, the return spring 34 is compressed, vibration when the pressing plate 31 is in contact with the top cover is reduced, the pressing plate 31 is separated from the top cover after the pressing is finished, and the pressing plate 31 is reset under the action of the return spring 34.

More specifically, the gravity sensor 32 is disposed on the mounting seat, a force value can be set by the gravity sensor 32, and after the pressing plate 31 applies a preset force to the top cover, the pressing plate 31 is pressed once and reset.

After the top cover is positioned to the center of the opening of the cell casing, the pushing air cylinder 33 drives the pressure head assembly to move the pressure plate 31 to contact with the top cover in the direction approaching to the top cover and apply force to the top cover until the top cover is pressed into the cell casing, the pushing air cylinder 33 retreats, and the pressure plate 31 is reset under the action of the reset spring 34. The tail mechanism 1 drives the pressed product to return to the initial position of the tail mechanism 1.

For easy understanding, the working principle of the embodiments of the present application will be described below:

when in press fitting, the battery cell is firstly placed in the battery cell shell, then the battery cell shell with the battery cell is placed in the tail mechanism 1, and the first clamping component clamps the battery cell shell; two long side adjusting plates 22 and two short side adjusting plates 24 are matched to clamp the top cover; the first pushing component pushes the first clamping component to move towards the direction close to the positioning mechanism 2 until the battery cell shell is pushed into the positioning mechanism 2, the positioning mechanism 2 drives the two long-side adjusting plates 22 to move through the two long-side air cylinders 23 respectively, drives the two short-side adjusting plates 24 to move through the two short-side air cylinders 25 respectively, positions the top cover at the central position of the opening of the battery cell shell, then the pushing mechanism 3 moves towards the direction close to the top cover, and applies external force to the top cover to press the top cover onto the battery cell shell. After the press fitting is finished, the positioning mechanism 2 and the thrust mechanism 3 are reset, the tail mechanism 1 is reset, and the pressed product is brought back to the initial position of the tail mechanism 1.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The battery cell shell-entering press-fitting mechanism is characterized by comprising a frame (4), wherein a positioning mechanism (2), a thrust mechanism (3) and a tail mechanism (1) are arranged on the frame (4), the tail mechanism (1) comprises a first clamping component and a first thrust component, the first clamping component is used for clamping a battery cell shell, and the first thrust component is used for pushing the first clamping component to move along a direction close to or far away from the positioning mechanism (2);

the positioning mechanism (2) is used for correcting the position of the top cover, and the pushing mechanism (3) is used for pressing the top cover onto the battery cell shell.

2. The battery cell casing press-fitting mechanism according to claim 1, wherein the tail mechanism (1) further comprises a first mounting plate (11), the first clamping assembly comprises a base plate (12) and a side clamping cylinder (13), the base plate (12) is slidably mounted on the first mounting plate (11), the sliding direction of the base plate (12) is parallel to the direction of the base plate (12) approaching or separating from the positioning mechanism (2), and the side clamping cylinder (13) is at least provided with two side clamping cylinders at opposite intervals on the base plate (12).

3. The battery cell in-shell press-fitting mechanism according to claim 2, wherein the first thrust component comprises a tail positioning cylinder (15), the tail positioning cylinder (15) is fixedly mounted on the first mounting plate (11), a piston rod of the tail positioning cylinder (15) is connected with the base plate (12), and the length direction of the piston rod of the tail positioning cylinder (15) is parallel to the sliding direction of the base plate (12).

4. The cell-in-case press-fitting mechanism according to claim 1, wherein the positioning mechanism (2) comprises a second mounting plate (21), the plane of the second mounting plate (21) is perpendicular to the movement direction of the first clamping assembly, and the second mounting plate (21) allows the cell housing to pass through;

the second mounting plate (21) is provided with a plurality of adjusting plates in a sliding manner, and any adjusting plate moves along a direction approaching to or away from the center of the second mounting plate (21).

5. The battery cell casing press-fitting mechanism according to claim 4, wherein a linear guide rail is arranged between any one of the regulating plates and the second mounting plate (21), and the length direction of any one of the linear guide rails is parallel to the movement direction of the corresponding regulating plate;

the second mounting plate (21) is also provided with a linear driving device for driving the adjusting plate to move, and the linear driving device is correspondingly arranged with the adjusting plate.

6. The battery cell casing press-fitting mechanism according to claim 4, wherein the regulating plates include a long-side regulating plate (22) and a short-side regulating plate (24), the long-side regulating plate (22) is provided with two relatively spaced apart on the second mounting plate (21), the short-side regulating plate (24) is provided with two relatively spaced apart on the second mounting plate (21), and the long-side regulating plates (22) are each provided adjacent to the short-side regulating plate (24).

7. The cell-in-case press-fitting mechanism according to claim 1, wherein the thrust mechanism (3) includes a third mounting plate (36), a ram assembly slidably mounted on the third mounting plate (36), and a drive assembly that drives the ram assembly in a direction approaching or moving away from the positioning mechanism (2).

8. The battery cell casing press-fit mechanism as recited in claim 7, wherein a slide rail is disposed between the ram assembly and the third mounting plate (36), the length direction of the slide rail being parallel to the direction of movement of the ram assembly.

9. The battery cell casing press-fitting mechanism according to claim 8, wherein the press-head assembly comprises a supporting plate (37), a pressing plate (31) and a reset assembly, the supporting plate (37) is slidably connected with a sliding rail on the third mounting plate (36), the reset assembly is arranged on the supporting plate (37), and the pressing plate (31) is connected with one end of the reset assembly close to the positioning mechanism (2).

10. The battery cell casing press-fitting mechanism according to claim 9, wherein the reset assembly comprises a movable mandrel (35) and a reset spring (34), one end of the movable mandrel (35) close to the positioning mechanism (2) is connected with the pressing plate (31), one end of the movable mandrel (35) away from the positioning mechanism (2) is connected with the reset spring (34), and the central axis of the reset spring (34) is collinear with the central axis of the movable mandrel (35).