CN217822928U

CN217822928U - Lithium battery sealing device

Info

Publication number: CN217822928U
Application number: CN202220745106.4U
Authority: CN
Inventors: 朱勇
Original assignee: Tianpeng Lithium Energy Technology Huai'an Co ltd
Current assignee: Tianpeng Lithium Energy Technology Huai'an Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-11-15
Anticipated expiration: 2032-04-01

Abstract

The utility model discloses a lithium cell closing device of battery processing equipment technical field aims at solving the problem that is difficult to guarantee device and battery centering precision among the prior art. It includes clamping jaw subassembly and seal axle, and the one end detachable connection of seal axle has the installation piece, and installation piece an organic whole is connected with the collet, and the collet inboard can be dismantled and be connected with and seal the mould, seals mould and the setting of collet coaxial line, and clamping jaw subassembly includes a plurality of clamping jaws, and a plurality of clamping jaws can mutually support to press from both sides tight fixed in order to realize the lithium cell and seal the mould, and during the sealing, the collet head cover is located outside a plurality of clamping jaws, the utility model is suitable for a sealing work of lithium cell seals the during operation to the lithium cell, with collet and installation piece integrated into one piece, has reduced the accumulative size tolerance that the part assembly arouses, can guarantee the centering precision of device and battery, avoids position between them to appear squinting, improves the lithium cell yields, is favorable to improving lithium cell quality.

Description

Lithium battery sealing device

Technical Field

The utility model relates to a lithium cell closing device belongs to battery processing equipment technical field.

Background

Lithium batteries are widely used in new energy industries, electric tool industries, consumer electronics industries, and the like. With the continuous improvement of the requirements on the lithium battery packaging process and safety, the requirements on the sealing size of the lithium battery are higher and higher.

Current lithium cell head battery cover is by sealing the mechanism and seals, receives the subassembly assembly precision scheduling problem influence of mechanism of sealing, appears sealing mechanism self easily when sealing or seals the mechanism and the lithium cell the two off-centre that appears to lead to the lithium cell external diameter after sealing inconsistent, face type is bad, influences the lithium cell yields, is unfavorable for improving lithium cell quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a lithium cell closing device, can improve the centering precision of closing device and lithium cell to promote lithium cell quality.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a lithium battery sealing device, which comprises a clamping jaw component and a sealing shaft;

one end of the sealing shaft is detachably connected with an installation block, the installation block is integrally connected with a sleeve head, the inner side of the sleeve head is detachably connected with a sealing die, and the sealing die and the sleeve head are coaxially arranged;

the clamping jaw assembly comprises a plurality of clamping jaws which can be mutually matched to clamp and fix the lithium battery and the sealing die;

when sealing, the sleeve head is sleeved outside the clamping jaws.

Further, the clamping jaw assembly further comprises a plate body; the clamping jaws are distributed in a circular shape, are respectively embedded in the disk body and can be close to or far away from the middle part of the disk body through respective driving mechanisms.

Further, the driving mechanism comprises a lead screw or a hydraulic oil cylinder.

Furthermore, one end of each clamping jaw, which is close to the sealing shaft, is provided with a chamfer.

Further, the mounting block is connected with the seal shaft through a screw.

Further, the dimensional tolerance between the mounting block and the seal shaft is in the range of (0, 0.1%).

Furthermore, one side of each clamping jaw, which faces the lithium battery, is provided with a limiting part, and the shape of the limiting part is matched with the shape of the lithium battery.

Furthermore, one end of the sealing die, which is close to the sealing shaft, abuts against the mounting block so as to realize axial limiting of the sealing die.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

1. the utility model provides a lithium battery sealing device, with sleeve head and installation piece integrated into one piece, reduced the accumulative total dimensional tolerance that the part assembly arouses, during the sealing, locate outside a plurality of clamping jaws with the sleeve head cover that the mould coaxial line that seals set up, a plurality of clamping jaws are mutually supported and are realized the lithium cell and the clamp of sealing the mould is fixed, have further improved the centering degree of sealing mould and lithium cell, help improving the lithium cell and seal the quality, thereby improve the yields of lithium cell;

2. the range of the dimensional tolerance between the mounting block and the sealing shaft is (0, 0.1), when the relative position of the sealing shaft and the lithium battery is deviated, the relative position of the mounting block and the sealing shaft can be changed, the sleeve head and the sealing die move along with the mounting block and the sealing shaft, so that the relative position of the sealing die and the lithium battery can be conveniently adjusted, and the centering precision of the sealing die and the lithium battery is ensured;

3. each clamping jaw is provided with a limiting part, when the clamping jaw contacts the lithium battery, the limiting part moves to the groove of the lithium battery along with the clamping jaw, so that a further limiting effect is achieved on the lithium battery, and the fixing effect of the clamping jaw on the lithium battery is guaranteed.

Drawings

Fig. 1 is a side sectional view of a lithium battery sealing device according to an embodiment of the present invention;

fig. 2 is a front view of a lithium battery sealing device according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view at a in fig. 1.

In the figure: 1. a jaw assembly; 2. a seal shaft; 3. a sleeve head; 4. sealing the mold; 5. a clamping jaw; 6. a tray body; 7. a limiting part; 8. and (7) installing the block.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-3, the utility model provides a lithium battery sealing device, which comprises a clamping jaw assembly 1 and a sealing shaft 2; one end of the sealing shaft 2 is detachably connected with an installation block 8, the installation block 8 is integrally connected with a sleeve head 3, the inner side of the sleeve head 3 is detachably connected with a sealing die 4, and the sealing die 4 and the sleeve head 3 are coaxially arranged; the clamping jaw assembly 1 comprises a plurality of clamping jaws 5, and the clamping jaws 5 can be mutually matched to clamp and fix the lithium battery and the sealing die 4; during sealing, the sleeve head 3 is sleeved outside the clamping jaws 5, the mounting block 8 is connected with the sealing shaft 2 through screws, and one end of the sealing mold 4, which is close to the sealing shaft 2, is abutted to the mounting block 8, so that the axial limiting of the sealing mold 4 is realized.

Specifically, before the operation starts, the lithium battery to be sealed is placed on the inner sides of the plurality of clamping jaws 5, the lithium battery is fixed by the clamping jaws 5, the mounting block 8 is detachably connected to one end of the sealing shaft 2, the mounting block 8 and the sealing shaft 2 can be connected through screws or other parts with locking functions, the sleeve head 3 and the mounting block 8 are integrally formed, the accumulated size tolerance caused by part assembly is reduced, the sealing die 4 is detachably mounted inside the sleeve head 3 and coaxially arranged, one end of the sealing die 4 close to the sealing shaft 2 abuts against the mounting block 8, the mounting block 8 has an axial limiting effect on the sealing die 4, the stability of the relative positions of the sleeve head 3 and the sealing die 4 is ensured through the matching of the mounting block 8 and the sleeve head 3, the sealing shaft 2 is positioned right above the lithium battery and aligned with the lithium battery, and during the operation, the sealing shaft 2 pushes the mounting block 8, the sleeve head 3 and the sealing die 4 to approach towards the lithium battery, the sleeve head 3 is sleeved on the outer sides of the clamping jaws 5 along the outer walls of the clamping jaws 5 along with the movement, the clamping jaws 5 play a role in guiding the sleeve head 3, so that the up-and-down movement of the sealing die 4 is guided, the sleeve head 3 and the mounting block 8 are integrally formed by arranging the structure, the accumulated size tolerance caused by part assembly is reduced, the mounting block 8 is matched with the sleeve head 3, the relative positions of the sleeve head 3 and the sealing die 4 are ensured to be stable, the sleeve head 3 and the sealing die 4 are positioned on the same axis, the clamping jaws 5 play a role in guiding the movement of the sleeve head 3 and the sealing die 4 during sealing, the clamping jaws 5 are mutually matched to realize the clamping and fixing of the lithium battery and the sealing die 4, and the centering precision of the fixed lithium battery and the sealing die 4 is ensured, avoid the relative position between them skew to appear, avoid appearing sealing back battery external diameter unstability scheduling problem, help improving the lithium cell and seal the quality to improve the yields of lithium cell.

In one embodiment, the jaw assembly 1 further comprises a disc 6; a plurality of clamping jaws 5 are circular distribution, inlay respectively and locate in disk body 6 to can be close to or keep away from 6 middle parts of disk body through respective actuating mechanism, actuating mechanism includes lead screw or hydraulic cylinder.

Specifically, before the work begins, the lithium cell that will treat to seal is placed in the inboard of a plurality of clamping jaws 5, the lithium cell is located the inboard of disk body 6 simultaneously, when carrying out the fixed work to the lithium cell, respective actuating mechanism promotes clamping jaw 5 and is close to towards the lithium cell, actuating mechanism can be other parts that have drive function such as lead screw or hydraulic cylinder, when a plurality of clamping jaws 5 all contact with the lithium cell surface, the completion is to the fixed work of lithium cell, the work of loosening of lithium cell can be accomplished to the same reason, can take out the lithium cell after the work of sealing is accomplished.

In one embodiment, each jaw 5 is chamfered at an end thereof adjacent to the seal shaft 2.

Specifically, after a plurality of clamping jaws 5 accomplished the fixed work to the lithium cell, seal axle 2 drives installation piece 8, cartridge 3 and seals mould 4 and be close to towards the lithium cell, cartridge 3 is close to towards clamping jaw 5 thereupon, is equipped with the chamfer through the one end that is close to seal axle 2 at clamping jaw 5, and the outside of clamping jaw 5 is located to the cartridge 3 cover of being convenient for, avoids influencing clamping jaw 5 to the guide effect of cartridge 3, guarantees cartridge 3 and seals the stability when mould 4 moves.

In one embodiment, the dimensional tolerance between the mounting block 8 and the closure shaft 2 is in the range of (0, 0.1%).

Specifically, the range of the dimensional tolerance between the mounting block 8 and the sealing shaft 2 is (0, 0.1), when the relative positions of the sealing shaft 2 and the lithium battery on the clamping jaw assembly 1 deviate, due to the existence of the dimensional tolerance, the relative positions of the mounting block 8 and the sealing shaft 2 can be adjusted, the positions of the sleeve head 3 and the sealing die 4 are changed accordingly, the relative positions of the sealing die 4 and the lithium battery can be adjusted conveniently, the centering precision of the sealing die 4 and the lithium battery is ensured, and the working effect of the device is ensured.

In one embodiment, a limiting part 7 is arranged on one side of each clamping jaw 5 facing the lithium battery, and the shape of the limiting part 7 is matched with the shape of the lithium battery.

Specifically, when a plurality of clamping jaws 5 carry out fixed work to the lithium cell, spacing portion 7 is close to towards the lithium cell along with clamping jaw 5, and when clamping jaw 5 contacted the lithium cell, spacing portion 7 moved to the groove of lithium cell thereupon to play further spacing effect to the lithium cell, thereby guaranteed clamping jaw 5 to the fixed effect of lithium cell.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a lithium cell closing device which characterized in that: comprises a clamping jaw component (1) and a sealing shaft (2);

one end of the sealing shaft (2) is detachably connected with an installation block (8), the installation block (8) is integrally connected with a sleeve head (3), the inner side of the sleeve head (3) is detachably connected with a sealing die (4), and the sealing die (4) and the sleeve head (3) are arranged coaxially;

the clamping jaw assembly (1) comprises a plurality of clamping jaws (5), and the clamping jaws (5) can be matched with each other to clamp and fix the lithium battery and the sealing die;

when the mouth is sealed, the sleeve head (3) is sleeved outside the clamping jaws (5).

2. The lithium battery sealing device of claim 1, wherein: the clamping jaw assembly (1) further comprises a disc body (6); a plurality of the clamping jaws (5) are distributed in a circular shape, are respectively embedded in the disc body (6), and can be close to or far away from the middle part of the disc body (6) through respective driving mechanisms.

3. The lithium battery sealing device of claim 2, wherein: the driving mechanism comprises a lead screw or a hydraulic oil cylinder.

4. The lithium battery sealing device of claim 2, wherein: and one end of each clamping jaw (5) close to the seal shaft (2) is provided with a chamfer.

5. The lithium battery sealing device of claim 1, wherein: the mounting block (8) is connected with the seal shaft (2) through screws.

6. The lithium battery sealing device of claim 1, wherein: the dimensional tolerance between the mounting block (8) and the closure shaft (2) is in the range of (0, 0.1].

7. The lithium battery sealing device of claim 1, wherein: one side, facing the lithium battery, of each clamping jaw (5) is provided with a limiting part (7), and the shape of each limiting part (7) is matched with the shape of the lithium battery.

8. The lithium battery sealing device according to claim 1, wherein one end of the sealing mold (4) close to the sealing shaft (2) abuts against the mounting block (8) to realize axial limiting of the sealing mold (4).