CN221110504U

CN221110504U - Welding clamping device for lithium battery cap assembly

Info

Publication number: CN221110504U
Application number: CN202323087019.8U
Authority: CN
Inventors: 李贵高
Original assignee: Yuanbo Intelligent Technology Co ltd
Current assignee: Yuanbo Intelligent Technology Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-06-11
Anticipated expiration: 2033-11-14

Abstract

The application belongs to the technical field of lithium battery production and manufacturing, and relates to a welding clamping device for a lithium battery cap assembly. The upper pressing die assembly comprises a jacking mechanism, a linkage mechanism and a cam driving mechanism, wherein the jacking mechanism and the cam driving mechanism are arranged on the installation part of the seat body, and the linkage mechanism is connected with the cam driving mechanism and the jacking mechanism and can be used for adjusting the jacking height of the jacking mechanism. The application solves the problems that jump occurs to influence positioning and deformation is easy to occur when the lithium battery cap assembly is welded and jacked, and the application adopts the cam driving mechanism to drive the jacking, thereby effectively protecting the lithium battery cap with a sheet structure and avoiding damage to the lithium battery cap assembly in the jacking process.

Description

Welding clamping device for lithium battery cap assembly

Technical Field

The utility model belongs to the technical field of lithium battery production and manufacturing, and particularly relates to a welding clamping device for a lithium battery cap assembly, which is used for clamping and positioning the lithium battery cap welding assembly.

Background

Along with the development of new energy industry, power lithium cell and energy storage battery obtain rapid development owing to specific self structure and performance, and lithium cell is used in each field widely, and lithium cell upper portion is provided with the cap subassembly, in lithium cell production process, needs to assemble the cap subassembly in advance, and the lithium cell cap is after the equipment is accomplished, needs to weld the assembled part, need to fix a position the clamp to the assembled welding part of lithium cell during the welding, avoids appearing in the welding process, and the assembled part takes place dislocation skew, influences the welding quality of assembled part. At present, the assembly is clamped by a cylinder to be fastened and fixed, the cylinder is adopted to tightly press the impact force, the upper pressure head and the lower pressure head simultaneously act on the lithium battery cap assembly, the lithium battery cap assembly easily jumps during pressing, positioning is affected, deformation of the assembly possibly occurs, and welding quality is easy to occur.

In view of the above drawbacks of the prior art, it is an object of the present invention to provide a welding and clamping device for a lithium battery cap assembly, which is capable of solving the above problems.

Disclosure of utility model

The utility model aims to provide a welding clamping device for a lithium battery cap assembly, which meets the clamping and positioning requirements of the lithium battery cap assembly and solves the problem of deformation of a welding piece caused by the tight jacking of an air cylinder.

The application provides a welding clamping device for a lithium battery cap assembly, which comprises a base body, wherein the base body comprises a base and an installation part, the base is fixedly connected to a workbench through a threaded connecting piece, a welding press die assembly is arranged on the installation part, the welding press die assembly comprises an upper press die assembly and a lower press die assembly, and the lower press die assembly and the upper press die assembly are arranged up and down correspondingly and are used for clamping and positioning a workpiece to be welded; the upper pressing die assembly comprises a pushing mechanism, a linkage mechanism and a cam driving mechanism, wherein the pushing mechanism and the cam driving mechanism are arranged on the installation part of the seat body, and the linkage mechanism is connected with the cam driving mechanism and the pushing mechanism.

In addition to the technical features described above, the present application is improved in the following aspects:

In some embodiments, a tight adjustment mechanism is further provided between the cam driving mechanism and the tight mechanism, and the tight adjustment mechanism is installed on the sliding seat and is arranged corresponding to the linkage mechanism, so as to adjust the tight height of the tight mechanism.

In some embodiments, the jacking mechanism comprises a roller guide rail and a sliding seat mounted on the roller guide rail, wherein the roller guide rail is correspondingly mounted on a mounting part of the seat body; the sliding seat is slidably mounted on the roller guide rail, an upper top seat is arranged on the upper portion of the sliding seat, an upper pressing head is arranged on the upper top seat, and at least one upper pressing head is arranged.

In some embodiments, the cam driving mechanism comprises a motor, a transmission shaft and a cam assembly, wherein the motor is arranged at the lower part of the mounting part, and the motor is connected with the cam assembly through the transmission shaft.

In some embodiments, the cam assembly includes a cam having a cam slot with a drive bearing disposed therein.

In some embodiments, the linkage mechanism is a height-adjustable adjusting plate, one end of the adjusting plate is connected to the sliding seat, and the other end of the adjusting plate is connected to a transmission bearing of the cam assembly, and the transmission bearing is mounted on the adjusting plate.

In some embodiments, an adjustment slot is provided on one side of the adjustment plate, the adjustment slot being provided corresponding to the tightening adjustment mechanism.

In some embodiments, the tightening adjusting mechanism comprises an adjusting screw and a locking nut, the adjusting screw is in threaded connection with the sliding seat, the adjusting screw is correspondingly arranged with the adjusting groove on the adjusting plate, and at least one adjusting screw is arranged.

In some embodiments, the pressing die assembly comprises a pressing cylinder, the pressing cylinder is mounted on the mounting portion, one end of a piston rod of the pressing cylinder is connected with a pressing head, the pressing head is arranged corresponding to the upper pressing head, a pressing ring is arranged on the pressing head, and the pressing ring is mounted on the upper pressing head.

In some embodiments, a proximity switch is provided on one side of the roller rail.

The utility model has the beneficial effects that:

1. The application adopts the combined structure design that the upper die assembly and the lower die assembly are mutually matched, the upper die assembly adopts the cam driving mechanism to drive the sliding seat, thereby driving the upper pressure head to prop against the lithium battery cap assembly to be welded, the upper pressure head is driven by adopting the motor to be matched with the cam, compared with the prior art, the application adopts the direct driving of the air cylinder, the impact force is small, the problem of jumping in the propping process is avoided, the propping process is stable, and the impact on a workpiece is reduced.

2. The cam mechanism is designed, so that the pressing force in the pressing process is gradually increased, the impact on the lithium battery cap assembly in the pressing process can be reduced to the greatest extent, meanwhile, dislocation or deformation of the lithium battery cap assembly caused by the impact can be avoided, the upper pressing head is gradually pressed by adopting the combination of the motor and the cam, the pressing is smooth, the lithium battery cap with a sheet structure can be effectively protected, and the damage to the lithium battery cap assembly in the pressing process is avoided.

3. According to the application, the jacking adjusting mechanism is further arranged between the cam driving mechanism and the jacking mechanism, the jacking height of the upper pressing head is adjusted by adopting the adjusting screw and adjusting nut combined structure, the clamping degree of the lithium battery cap assembly can be freely adjusted according to actual conditions, the damage of excessive clamping to the cap assembly can be avoided, and the problem that follow-up welding is influenced due to unstable clamping can be avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.

FIG. 1 is a schematic view of a construction of the present application used in combination with spot welding;

FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 3 is a schematic view of the application in combination with a rotating disk mounted with a workpiece to be welded;

FIG. 4 is an enlarged view of a portion of FIG. 3A;

FIG. 5 is a state diagram of the adjustment of the pitch of the jack adjusting mechanism to 1mm in the embodiment of the application;

FIG. 6 is a state diagram of the adjustment of the pitch of the jack adjusting mechanism to 2mm in the embodiment of the application;

FIG. 7 is a state diagram of the adjustment of the pitch of the jack adjusting mechanism to 3mm in the embodiment of the application;

the labels in the figures are as follows:

1. A base; 11. A base; 12. a mounting part; 2. a work table; 3. An upper die assembly; 31. a jacking mechanism; 311. a roller guide rail; 312. a slide; 313. an upper top base; 3131. an upper pressure head; 32. an adjusting plate; 321. an adjustment tank; 33. a cam driving mechanism; 331. a motor; 332. a transmission shaft; 333. a cam assembly; 3331. a cam; 3332. cam grooves; 3333. a transmission bearing; 34. a jacking adjusting mechanism; 341. an adjusting screw; 342. a lock nut; 4. a lower die assembly; 41. A pressing cylinder; 42. A lower pressure head; 43. A compression ring; 5. and a proximity switch.

Detailed Description

1. Description of illustrative words in the examples

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the application, its application, or uses. The application may be embodied in other different forms and should not be construed as limited to the embodiments set forth herein.

These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. It should be noted that: the relative arrangement of the components set forth in these embodiments should be construed as illustrative only and not limiting unless specifically stated otherwise.

As used herein, the terms "upper", "lower", "left", "right", "bottom", "top", and the like are defined with respect to the directions in the drawings, and are merely intended to represent relative positional relationships, which may be changed when the absolute position of the object to be described is changed. These and other directional terms should not be construed as limiting terms.

In the present application, when it is described that a specific device is located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to the other devices without intervening devices, or may be directly connected to the other devices without intervening devices.

The "first", "second", and the like are used in this embodiment for convenience of description only, so as to distinguish components that have the same effect and the same or similar structure in this embodiment, and are disposed at different positions, and are not meant to be sequential or primary, and should not be construed as limiting.

Techniques, equipment known to those of ordinary skill in the relevant art are not discussed in detail, but should be considered part of the specification where appropriate.

2. Description of specific application examples of technical solution

The welding and clamping device for the lithium battery cap assembly is mainly applied to clamping and positioning after the lithium battery cap assembly is completed, can be applied to other scenes according to the functions of the welding and clamping device, and is not limited and restricted by the specific embodiments described in the application. The following description will be made in detail with reference to the accompanying drawings, in which the application of the welding clamping device in clamping and positioning a lithium battery cap assembly:

as shown in fig. 3, this embodiment describes a welding and clamping device for a lithium battery cap assembly, which is mounted in cooperation with a rotating disc on which a workpiece to be welded is mounted, so as to complete continuous operation of assembling, clamping and positioning the lithium battery cap assembly.

The welding and clamping device for the lithium battery cap assembly shown in fig. 1 and 2 comprises a base body 1, wherein the base body 1 comprises a base 11 and a mounting part 12, and the base 11 is fixedly connected to the workbench 2 through a threaded connecting piece.

The welding die assembly is arranged on the mounting part 12 and comprises an upper die assembly 3 and a lower die assembly 4, the upper die assembly 3 and the lower die assembly 4 are correspondingly arranged, the upper die assembly 3 is pressed and jacked up, the lower die assembly 4 is pressed and jacked down, the upper die assembly 3 and the lower die assembly 4 are matched with each other, and the lithium battery cap assembly to be welded is clamped and positioned for preparation of a subsequent welding process.

The upper die assembly 3 comprises a pushing mechanism 31, a linkage mechanism and a cam driving mechanism 33, wherein the pushing mechanism 31 and the cam driving mechanism 33 are arranged on the mounting part 12 of the seat body 1, and the linkage mechanism is connected with the cam driving mechanism 33 and the pushing mechanism 31.

A tightening adjusting mechanism 34 is further disposed between the cam driving mechanism 33 and the tightening mechanism 31, and the tightening adjusting mechanism 34 is mounted on the slide seat 312 and is disposed corresponding to the linkage mechanism, so as to adjust the tightening height of the tightening mechanism 31.

The jacking mechanism 31 includes a slider 312 and a roller rail 311 for mounting the slider 312, and is configured as a double rail. The sliding seat 312 is longitudinally and slidably mounted on the roller guide rail 311, and the roller guide rail 311 is correspondingly mounted on the mounting part 12 of the seat body 1. The sliding seat 312 is provided with an upper top seat 313, the upper top seat 313 is fixedly connected to the upper portion of the sliding seat 312 through a connecting piece, an upper pressing head 3131 is arranged on the upper portion of the upper top seat 313, at least one upper pressing head 3131 is arranged, in this embodiment, the upper top seat 313 is provided with a double station, and two upper pressing heads 3131 are correspondingly arranged.

In operation, the upper ram 3131 moves with the slide 312 along the roller rail 311 in a longitudinal direction to achieve vertical tightening.

The cam driving mechanism 33 includes a motor 331, a transmission shaft 332, and a cam assembly 333, wherein the motor 331 is mounted at the lower part of the mounting portion 12, and the motor 331 is connected to the cam assembly 333 through the transmission shaft 332.

The cam assembly 333 includes a cam 3331, wherein a cam groove 3332 is provided on the cam 3331, and a transmission bearing 3333 is provided in the cam groove 3332. In operation, the drive bearing 3333 slides along the cam slot 3332 with the cam 3331.

The linkage mechanism is a height-adjustable adjusting plate 32, one end of the adjusting plate 32 is connected to the sliding seat 312, the other end of the adjusting plate is connected to a transmission bearing 3333 of the cam assembly 333, the transmission bearing 3333 is mounted on the adjusting plate 32, the transmission bearing 3333 slides in the cam groove 3332 along with the cam 3331, and the sliding seat 312 is driven to move up and down along the roller guide rail 311 through the connecting plate, so that positioning and clamping of a welding piece in the welding process are realized.

As shown in fig. 1, the adjustment of the tightening height of the tightening mechanism 31 is achieved by adjusting the installation height of the adjusting plate 32, and based on the above adjustment method, an adjusting groove 321 is provided on one side of the adjusting plate 32, and the adjusting groove 321 is provided corresponding to the tightening adjusting mechanism 34.

As shown in fig. 5, 6 and 7, the tightening adjusting mechanism 34 includes an adjusting screw 341 for adjusting the height of the adjusting plate 32 and a locking nut 342 for locking the adjusting screw 341, the adjusting screw 341 is screwed on the slide seat 312, the adjusting screw 341 is correspondingly arranged with the adjusting groove 321 on the adjusting plate 32, at least one adjusting screw 341 is arranged, in this embodiment, two adjusting screws 341 are arranged, the two adjusting screws 341 are mutually matched and are used for adjusting different mounting heights of the adjusting plate 32, and the height adjusting range of the adjusting plate 32 is between 1mm and 4 mm. The application provides an adjusting example of 1 mm-3 mm.

As shown in fig. 1 and 2, the lower die assembly 4 includes a lower die cylinder 41, the lower die cylinder 41 is mounted on the mounting portion 12 and is disposed on the other side of the mounting portion 12 where the upper die assembly 3 is mounted, one end of a piston rod of the lower die cylinder 41 is connected with a lower press head 42, the lower press head 42 is disposed corresponding to the upper press head 3131, a press ring 43 is disposed on the lower press head 42, the press ring 43 is fixed on the upper press head 3131, and the press ring 43 cooperates with the upper press head 3131 to realize the tight positioning of the lithium battery cap assembly. And a welding hole is formed in the middle of the compression ring 43, and a welding gun realizes the welding of the lithium battery cap assembly through the welding hole during welding.

After the welding is finished, the rotating disc is provided with the workpiece to be welded, the rotating disc rotates to the next station, another group of workpieces to be welded are welded, in order to avoid the occurrence of the condition that the lower pressure head 42 does not move down to the right place, the rotating disc rotates to cause equipment faults, the rotating disc needs to detect whether the lower pressure head 42 moves down to the right place before rotating, and the rotating disc is arranged on one side of the roller guide rail 311 for checking whether the lower pressure head 42 moves down to the right place.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model. In addition, the technical solutions between the embodiments may be combined with each other, but must be based on the implementation by those of ordinary skill in the art; when the combination of the technical solutions is contradictory or impossible to realize, it should be considered that the combination of the technical solutions does not exist and is not within the scope of protection claimed by the present utility model.

Claims

1. The welding and clamping device for the lithium battery cap assembly comprises a base body (1), wherein the base body (1) comprises a base (11) and a mounting part (12), the base (11) is fixedly connected to a workbench (2) through a threaded connecting piece,

The welding die assembly is characterized in that the mounting part (12) is provided with a welding die assembly, the welding die assembly comprises an upper die assembly (3) and a lower die assembly (4), and the lower die assembly (4) and the upper die assembly (3) are correspondingly arranged up and down and used for clamping and positioning a workpiece to be welded;

the upper die assembly (3) comprises a cam driving mechanism (33), a linkage mechanism and a jacking mechanism (31);

The jacking mechanism (31) and the cam driving mechanism (33) are arranged on the mounting part (12) of the seat body (1), and the linkage mechanism is connected with the cam driving mechanism (33) and the jacking mechanism (31).

2. The welding and clamping device for the lithium battery cap assembly according to claim 1, wherein a tightening adjusting mechanism (34) is further arranged between the cam driving mechanism (33) and the tightening mechanism (31), and the tightening adjusting mechanism (34) is installed on the sliding seat (312) and is correspondingly arranged with the linkage mechanism, so as to adjust the tightening height of the tightening mechanism (31).

3. The welding and clamping device for the lithium battery cap assembly according to claim 1 or 2, wherein the cam driving mechanism (33) comprises a motor (331), a transmission shaft (332) and a cam assembly (333), the motor (331) is installed at the lower part of the installation part (12), and the motor (331) is connected with the cam assembly (333) through the transmission shaft (332).

4. The welding and clamping device of the lithium battery cap assembly according to claim 1, wherein the jacking mechanism (31) comprises a roller guide rail (311) and a sliding seat (312) arranged on the roller guide rail (311), and the roller guide rail (311) is correspondingly arranged on the mounting part (12) of the seat body (1); the sliding seat (312) is slidably mounted on the roller guide rail (311), an upper top seat (313) is arranged on the upper portion of the sliding seat (312), and an upper pressure head (3131) is arranged on the upper portion of the upper top seat (313).

5. The welding and clamping device for a lithium battery cap assembly according to claim 3, wherein the cam assembly (333) comprises a cam (3331), a cam groove (3332) is arranged on the cam (3331), and a transmission shaft (332) is arranged in the cam groove (3332).

6. The welding and clamping device for the lithium battery cap assembly according to claim 1, wherein the linkage mechanism is a height-adjustable adjusting plate (32), one end of the height-adjustable adjusting plate (32) is connected to the sliding seat (312), the other end of the height-adjustable adjusting plate is connected to a transmission shaft (332) of the cam assembly (333), and the transmission shaft (332) is arranged on the adjusting plate (32).

7. The welding and clamping device for the lithium battery cap assembly, according to claim 6, wherein an adjusting groove (321) is formed in one side of the adjusting plate (32), and the adjusting groove (321) is arranged corresponding to the jacking adjusting mechanism (34).

8. The welding clamping device of the lithium battery cap assembly according to claim 2, wherein the tightening adjusting mechanism (34) comprises an adjusting screw (341) and a locking nut (342), the adjusting screw (341) is in threaded connection with the sliding seat (312), the adjusting screw (341) is arranged corresponding to the adjusting groove (321) in the adjusting plate (32), and the adjusting screw (341) is at least one.

9. The welding and clamping device for the lithium battery cap assembly according to claim 1, wherein the lower pressing die assembly (4) comprises a lower pressing cylinder (41), the lower pressing cylinder (41) is installed on the installation part (12), one end of a piston rod of the lower pressing cylinder (41) is connected with a lower pressing head (42), the lower pressing head (42) is correspondingly arranged with the upper pressing head (3131), a pressing ring (43) is arranged on the lower pressing head (42), and the pressing ring (43) is installed on the upper pressing head (3131).

10. The welding and clamping device for a lithium battery cap assembly according to claim 4, wherein a proximity switch (5) is arranged on one side of the roller guide rail (311).