CN213366643U

CN213366643U - Cylindrical battery sealing structure

Info

Publication number: CN213366643U
Application number: CN202022310001.XU
Authority: CN
Inventors: 王全锋; 王红旗
Original assignee: Guangdong Liwang New Energy Co ltd
Current assignee: Guangdong Liwang New Energy Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-04
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to a cylinder battery production technical field specifically discloses a cylinder battery sealing structure. The structure comprises a mounting frame, a positioning assembly and a sealing assembly. The middle part of the mounting rack is provided with a mounting hole, and one end of the working arm is detachably mounted in the mounting hole; the positioning assembly comprises a positioning rod, a rotating connecting piece, an elastic piece and a limiting piece, one end of the elastic piece is connected with the rotating connecting piece, the other end of the elastic piece is abutted against the working arm, one end of the positioning rod is connected with the rotating connecting piece, the other end of the positioning rod is used for positioning the cylindrical battery, the elastic piece enables the positioning rod to move along the axial direction of the positioning rod, the limiting piece is used for limiting the movement range of the positioning rod, and the rotating connecting piece enables the positioning rod to; the sealing assembly is used for sealing the cylindrical battery, is equipped with a plurality of, and the sealing assembly centers on locating lever circumference equipartition setting, and demountable installation is on the mounting bracket. The structure can ensure that the cylindrical battery is stably centered in the sealing process, and the quality of the cylindrical battery finished product is improved.

Description

Cylindrical battery sealing structure

Technical Field

The utility model relates to a cylinder battery production technical field especially relates to a cylinder battery sealing structure.

Background

The cylindrical battery sealing body consists of a sealing ring and a bottom cover. The common sealing method is that the steel shell of the cylindrical battery is scribed, the sealing body is arranged in the cylindrical battery, then the sealing body and the steel shell of the cylindrical battery are tightly pressed together by using a sealing mould on a sealing forming machine, and the curled edge of the steel shell is just buckled on the bottom cover of the sealing body.

At present, a two-wheel sealing structure is often adopted to seal a cylindrical battery. The two wheels clamp the two ends of the steel shell simultaneously, the sealing wheel rotates 360 degrees, the sealing wheel rotates and shapes the steel shell around the cylindrical battery by means of stress at the two ends of the steel shell, and the steel shell is slowly pressed down to shape and seal the steel shell.

In the above-mentioned working process, the positioning condition of the cylindrical battery is not reliable. In the edge closing process of the cylindrical battery, the stress is uneven due to the fact that the steel shell or the sealing wheel is arranged not in the middle, and the cylindrical battery is not smooth and deformed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder battery sealing structure to solve and easily lead to the problem that cylinder battery processingquality descends because of the location problem.

To achieve the purpose, the utility model adopts the following technical proposal:

a cylindrical battery sealing structure comprises an installation frame, a positioning assembly and a sealing assembly. The middle part of the mounting rack is provided with a mounting hole, and one end of the working arm is detachably mounted in the mounting hole;

the positioning assembly comprises a positioning rod, a rotating connecting piece, an elastic piece and a limiting piece, one end of the elastic piece is connected with the rotating connecting piece, the other end of the elastic piece is abutted to the working arm, one end of the positioning rod is connected with the rotating connecting piece, the other end of the positioning rod is used for positioning a cylindrical battery, the elastic piece can enable the positioning rod to move along the axial direction of the positioning rod, the limiting piece is used for limiting the movement range of the positioning rod, and the rotating connecting piece can enable the positioning rod to rotate along the circumferential direction of the positioning rod; the sealing assembly is used for sealing the cylindrical battery, the sealing assembly is provided with a plurality of sealing assemblies, the sealing assembly surrounds the positioning rod circumference equipartition sets up, and demountable installation in on the mounting bracket.

Preferably, the elastic member is a spring.

Preferably, the rotating connection piece is a plurality of positioning bearings, and the positioning bearings are sequentially overlapped.

Preferably, the closure assembly is provided in three.

Further, the seal assembly comprises a seal wheel shaft, a contact unit and a splicing unit. The contact unit is used for sealing the cylindrical battery and is arranged at one end of the sealing wheel shaft; the splicing unit is arranged at the other end of the sealing wheel shaft and is detachably arranged on the mounting frame.

Furthermore, the contact unit is mounted at one end of the sealing wheel shaft facing the positioning rod.

Preferably, the contact unit comprises a sealing wheel and a sealing bearing, the sealing wheel shaft penetrates through the sealing bearing, and the sealing wheel is connected to the outer side of the sealing bearing.

Furthermore, a positioning pin is fixedly connected to the end portion of the sealing wheel shaft close to one end of the positioning rod, an end face bearing is sleeved on the positioning pin, and the outer ring of the end face bearing abuts against the sealing wheel.

Preferably, the splicing unit includes axle sleeve, backing ring and nut, seal the shaft and keep away from the one end of locating lever wears to establish in proper order the backing ring with the axle sleeve, and the spiro union the nut, the axle sleeve install in on the mounting bracket.

Preferably, the cylindrical battery sealing structure further comprises a positioning hole formed in the mounting frame, the positioning hole is communicated with the mounting hole, and a positioning bolt penetrates through the positioning hole and abuts against the working arm.

The utility model has the advantages that:

through the butt location of setting element and the even application of force of a plurality of equipartition seal assemblies for the cylinder battery seals the operation in-process and stably arranges predetermined position in, makes cylinder battery steel casing atress equal, and the turn-up is round level and smooth pleasing to the eye, has improved the processingquality of cylinder battery.

Drawings

Fig. 1 is a schematic structural diagram of a cylindrical battery sealing structure according to an embodiment of the present invention;

fig. 2 is an exploded view of a cylindrical battery sealing structure according to an embodiment of the present invention;

fig. 3 is a cross-sectional view taken at the plane a-a in fig. 1.

In the figure:

1. a mounting frame; 101. a first hole; 102. a second hole; 103. a third aperture; 2. positioning the bearing; 3. positioning a rod; 4. a sealing wheel; 5. sealing the bearing; 6. sealing the wheel shaft; 7. a shaft sleeve; 8. a backing ring; 9. a nut; 10. a clamp spring; 11. positioning holes; 12. positioning the bolt; 13. a spring; 14. positioning pins; 15. an end face bearing; 16. a working arm.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present embodiment provides a cylindrical battery sealing structure, which includes a mounting frame 1, a positioning assembly and a sealing assembly; a mounting hole is formed in the middle of the mounting frame 1, and one end of the working arm 16 is detachably mounted in the mounting hole; the positioning assembly comprises a positioning rod 3, a rotating connecting piece, an elastic piece and a limiting piece, one end of the elastic piece is connected with the rotating connecting piece, the other end of the elastic piece is abutted to the working arm 16, one end of the positioning rod 3 is connected with the rotating connecting piece, the other end of the positioning rod is used for positioning the cylindrical battery, the elastic piece can enable the positioning rod 3 to move along the axial direction of the positioning rod 3, the limiting piece is used for limiting the movement range of the positioning rod 3, and the rotating connecting piece can enable the positioning rod 3; the seal subassembly is used for sealing the cylinder battery, and the seal subassembly is equipped with a plurality ofly, and the seal subassembly centers on 3 circumference equipartitions of locating lever and sets up, and demountable installation on mounting bracket 1. Through the butt location of setting element 3 and the even application of force of a plurality of equipartition seal assemblies for the cylinder battery seals the operation in-process and stably arranges predetermined position in, makes cylinder battery steel casing atress equal, and the turn-up is round smooth pleasing to the eye, has improved the processingquality of cylinder battery.

In this embodiment, the mounting hole is the shoulder hole, it is including the first hole 101 that communicates in proper order, second hole 102 and third hole 103, the aperture of first hole 101 is greater than the aperture of second hole 102, the one end of work arm 16 is pegged graft in first hole 101, and the terminal surface butt of work arm 16 is on the ladder face of first hole 101 with second hole 102, the second hole 102 is arranged in to elastic component and rotation connecting piece, the aperture of third hole 103 is greater than the aperture of first hole 101, the one end that locating lever 3 is used for fixing a position the cylinder battery is arranged in third hole 103, so that provide the space for installing the cylinder battery. The design not only completes the fool-proof design of the mechanism, but also limits the installation positions of the working arm 16 and the positioning assembly, simplifies the flow of structure disassembly and assembly, and further improves the working efficiency.

In this embodiment, the limiting member includes a snap spring 10 fixedly connected to the inside of the mounting hole, specifically, the snap spring 10 is mounted in the second hole 102, and the end surface of the rotating connecting member can abut against the snap spring 10. The arrangement of the clamp spring 10 limits the downward movement range of the positioning piece 3, the quality reduction of the cylindrical battery caused by excessive force application of the positioning piece 3 is avoided, and the clamp spring 10 is simple in structure, low in manufacturing cost and convenient to disassemble and assemble.

In this embodiment, the elastic member is preferably a spring 13, and the spring 13 is easy to deform and has high elasticity, so that the positioning rod 3 can be quickly reset without being influenced by external force, and the manufacturing cost is low, which is beneficial to large-scale use.

Preferably, the rotating connecting piece is a plurality of positioning bearings 2, and the positioning bearings 2 are sequentially overlapped and arranged. The outer ring end face of the positioning bearing 2 is connected with one end of the elastic piece, the inner ring of the positioning bearing 2 is connected with one end of the positioning rod 3, the positioning bearing 2 is a rolling bearing, the rolling bearing occupies a small space and is simple in structure, and meanwhile, the positioning rod 3 can rotate along the circumferential direction of the positioning rod 3. The overlapping arrangement of the positioning bearings 2 not only increases the contact area of the two sides of the positioning bearing 2, but also enables the rest positioning bearings 2 to still complete the predetermined action when any positioning bearing 2 is damaged, thereby prolonging the service life of the device. Specifically, the two positioning bearings 2 are stacked, and the screw screwed on the positioning member 3 makes the inner side of the positioning bearing 2 fixedly connected to the positioning member 3.

The seal assembly comprises a seal wheel shaft 6, a contact unit and a splicing unit. The contact unit is used for sealing the cylindrical battery and is arranged at one end of the sealing wheel shaft 6; the splicing unit is arranged at the other end of the sealing wheel shaft 6 and is detachably arranged on the mounting frame 1. The sealing operation of the cylindrical battery is completed by utilizing the plurality of contact units simultaneously, the times of the contact units for shaping the cylindrical battery are increased, and the processing effect is improved.

In the present embodiment, the number of the sealing assemblies is preferably three, that is, each two sealing assemblies are distributed at 120 ° relative to the positioning member 3. The efficiency and the quality of cylindrical battery plastic have not only been guaranteed in above-mentioned setting, still make cylindrical battery atress more even, have further promoted the location effect of structure.

Preferably, the contact unit is mounted on the end of the seal wheel shaft 6 facing the positioning rod 3. The space that the above-mentioned setting had reduced the seal subassembly and taken up for the structure is compacter. The utility model discloses an among other embodiments, the contact unit with seal the orientation of shaft 6 and install on sealing shaft 6 with certain angle, change the atress direction of contact unit for the life of contact unit is longer.

Specifically, the contact unit comprises a sealing wheel 4 and a sealing bearing 5, a sealing wheel shaft 6 penetrates through the sealing bearing 5, and the sealing wheel 4 is connected to the outer side of the sealing bearing 5. Above-mentioned setting makes seal wheel 4 rotate to be connected in sealing on the shaft 6, and a plurality of seal wheels 4 are in radial positioning cylinder battery, through moving down the whole operation of sealing of making seal wheel 4 accomplish the operation of sealing to cylinder battery with the structure. In the present embodiment, two seal bearings 5 are provided one above the other.

Preferably, a positioning pin 14 is fixedly connected to an end portion of the sealing wheel shaft 6 near one end of the positioning rod 3, an end face bearing 15 is sleeved on the positioning pin 14, and an outer ring of the end face bearing 15 abuts against the sealing wheel 4. The arrangement of the positioning pin 14 and the end face bearing 15 further ensures that the sealing wheel 4 can smoothly rotate around the sealing wheel shaft 6.

Specifically, the concatenation unit includes axle sleeve 7, backing ring 8 and nut 9, seals the one end that shaft 6 kept away from locating lever 3 and wears to establish backing ring 8 and axle sleeve 7 in proper order, and spiro union nut 9, and axle sleeve 7 installs on mounting bracket 1. The distance between the sealing wheel 4 and the positioning rod 3 can be adjusted by replacing the backing ring 8, and then the sealing operation of cylindrical batteries with different diameters is completed. Specifically, the mounting bracket 1 sets up the axle sleeve hole that size cooperation axle sleeve 7 was seted up along third hole 103 circumference to the one end that sets up third hole 103, and inside axle sleeve hole was worn to locate by axle sleeve 7, the contact element was arranged in third hole 103.

In this embodiment, the cylindrical battery sealing structure further includes a positioning hole 11 provided on the mounting frame 1, the cylindrical battery sealing structure further includes a positioning hole 11 and a positioning bolt 12 communicating with the mounting hole, the positioning hole 11 communicates with the mounting hole, specifically, the positioning hole 11 communicates with the first hole 101, and the positioning bolt 12 penetrates through the positioning hole 11 and abuts against the working arm 16. The above arrangement enables the cylindrical battery enclosure to be attached to the working arm 16.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cylindrical battery sealing structure, comprising:

the mounting frame (1), the middle part of the mounting frame (1) is provided with a mounting hole, and one end of the working arm (16) is detachably mounted in the mounting hole;

the positioning assembly comprises a positioning rod (3), a rotating connecting piece, an elastic piece and a limiting piece, one end of the elastic piece is connected with the rotating connecting piece, the other end of the elastic piece is abutted to the working arm (16), one end of the positioning rod (3) is connected with the rotating connecting piece, the other end of the positioning rod is used for positioning a cylindrical battery, the elastic piece can enable the positioning rod (3) to move along the axial direction of the positioning rod (3), the limiting piece is used for limiting the movement range of the positioning rod (3), and the rotating connecting piece can enable the positioning rod (3) to rotate along the circumferential direction of the positioning rod (3);

the sealing assembly is used for sealing the cylindrical batteries and is provided with a plurality of sealing assemblies, the sealing assemblies surround the positioning rods (3) in circumferential uniform distribution and are detachably mounted on the mounting rack (1).

2. The cylindrical battery sealing structure according to claim 1, wherein the elastic member is a spring (13).

3. The cylindrical battery sealing structure according to claim 1, wherein the rotating connecting piece is a plurality of positioning bearings (2), and the plurality of positioning bearings (2) are sequentially stacked.

4. The cylindrical battery closure structure of claim 1, wherein there are three of said closure assemblies.

5. The cylindrical battery closure structure of any one of claims 1-4, wherein the closure assembly comprises:

a sealing wheel shaft (6);

the contact unit is used for sealing the cylindrical battery and is arranged at one end of the sealing wheel shaft (6);

the splicing unit is arranged at the other end of the sealing wheel shaft (6), and is detachably arranged on the mounting frame (1).

6. The cylindrical battery sealing structure according to claim 5, wherein the contact unit is mounted to an end of the sealing hub (6) facing the positioning rod (3).

7. The cylindrical battery sealing structure according to claim 6, wherein the contact unit comprises a sealing wheel (4) and a sealing bearing (5), the sealing wheel shaft (6) is connected with the inner ring of the sealing bearing (5), and the outer ring of the sealing bearing (5) is connected with the sealing wheel (4).

8. The cylindrical battery sealing structure according to claim 7, wherein a positioning pin (14) is fixedly connected to an end of the sealing wheel shaft (6) close to one end of the positioning rod (3), an end face bearing (15) is sleeved on the positioning pin (14), and an outer ring of the end face bearing (15) abuts against the sealing wheel (4).

9. The cylindrical battery sealing structure according to claim 6, wherein the splicing unit comprises a shaft sleeve (7), a backing ring (8) and a nut (9), one end of the sealing wheel shaft (6) far away from the positioning rod (3) sequentially penetrates through the backing ring (8) and the shaft sleeve (7) and is in threaded connection with the nut (9), and the shaft sleeve (7) is mounted on the mounting frame (1).

10. The cylindrical battery sealing structure according to claim 1, further comprising a positioning hole (11) formed in the mounting frame (1), wherein the positioning hole (11) is communicated with the mounting hole, and a positioning bolt (12) is inserted into the positioning hole (11) and abuts against the working arm (16).