CN219959086U

CN219959086U - Battery cell side rolling device and battery welding equipment

Info

Publication number: CN219959086U
Application number: CN202321705300.0U
Authority: CN
Inventors: 蓝钦周
Original assignee: Lanjun New Energy Technology Co ltd
Current assignee: Lanjun New Energy Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-11-03
Anticipated expiration: 2033-06-29

Abstract

The utility model belongs to the technical field of battery production, and discloses a battery cell side rolling device and battery welding equipment. The battery cell side rolling device comprises at least one group of rolling assemblies, wherein each rolling assembly comprises a mounting base, a driving block and a rolling structure; the driving block is connected to the mounting base in a sliding manner and can be close to the side edge of the battery cell along a first direction; the rolling structure is rotationally connected to the driving block and can rotate around the Y axis by a preset angle, so that the rolling structure can contact the side edge of the battery cell and roll the side edge of the battery cell. This electricity core side roll-in device can roll-in to the side of electricity core before the shell is gone into to the electricity core and level, can not appear the bubble at the side, ensures that the electricity core can put into the aluminum hull smoothly and carry out follow-up technology, improves production efficiency.

Description

Battery cell side rolling device and battery welding equipment

Technical Field

The utility model relates to the technical field of battery production, in particular to a battery core side rolling device and battery welding equipment.

Background

Batteries have become an integral part of everyday life, powering more and more portable devices such as electronic devices, cordless power tools, energy storage devices, hybrid and electric vehicles. The battery cells of the common battery pack comprise a cylindrical battery cell, a square aluminum shell battery cell, a soft package battery cell and the like.

In the production process of the conventional square aluminum shell battery cell, the produced winding core is required to be enveloped and packaged, then the packaged winding core is placed in an aluminum alloy shell, and finally the shell with the winding core is installed in a clamp and a top cover enclosure is welded. When the package is packaged, the long edge of the package core is in a bulge and uneven state when the package core is packaged due to the difference of production processes and the flexibility of the plastic package film, the package core is coated with air bubbles at the rear end, the long edge is polished by sand paper at the moment, the package core meets the production standard, the package core is required to be manually torn off and re-coated when the package core is serious, the original product information two-dimensional code is even torn off, the package core is re-coated, and the package core is seriously wasted in manpower, material resources and financial resources and has low efficiency. If the rolled core which is not subjected to the treatment and bulges at the long side flows into the subsequent process, when the battery core is put into the shell assembly process, the relevant welding equipment can give an alarm for the ultrahigh at the long side of the rolled core, stop the machine, lead an operator to stop frequently and manually intervene the welding equipment to perform the positive pressure swing loading of the rolled core, the welding equipment needs to adjust the penetration position and the welding track at the moment, the frequent occurrence of the situation can lead the automatic welding efficiency of the battery core to be reduced, and the operator frequently enters the welding equipment to contact the working equipment, so that the working efficiency is low, and potential safety hazards are easy to generate.

Therefore, it is needed to provide a die side rolling device and a welding apparatus, so as to solve the above technical problems in the prior art.

Disclosure of Invention

The utility model aims to provide a battery cell side rolling device which can roll and level the side of a battery cell before the battery cell is put into a shell, so that air bubbles can not appear on the side, the battery cell can be smoothly put into an aluminum shell and subjected to subsequent processes, and the production efficiency is improved.

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

the battery cell side rolling device comprises at least one group of rolling assemblies, wherein each rolling assembly comprises a mounting base, a driving block and a rolling structure; the driving block is connected to the mounting base in a sliding manner and can be close to the side edge of the battery cell along a first direction; the rolling structure is rotationally connected to the driving block and can rotate around the Y axis by a preset angle, so that the rolling structure can contact the side edge of the battery cell and roll the side edge of the battery cell.

Optionally, the mounting base is provided with a first driving piece, and an output end of the first driving piece is in driving connection with the driving block.

Optionally, any one of the driving block and the mounting base is provided with a sliding rail, and the other one is provided with a sliding block in matched sliding connection with the sliding rail.

Optionally, limit stops are disposed on two sides of the side wall of the mounting base and located on two sides of the driving block along the first direction.

Optionally, the driving block is provided with a second driving piece, and an output end of the second driving piece is in driving connection with the rolling structure.

Optionally, the rolling structure includes a rotating shaft and a rolling block, the rotating shaft is rotatably connected to the driving block, and the rolling block is connected to the rotating shaft and can synchronously rotate along with the rotating shaft.

Optionally, one of the side walls of the two ends of the rolling block along the first direction, which is close to the side edge of the battery cell, is a curved surface.

Optionally, two rolling assemblies are oppositely arranged along the first direction, and the two rolling assemblies are used for rolling two opposite side edges of the flat battery core along the first direction in a one-to-one correspondence manner.

Optionally, the rolling assemblies are all disposed on a frame, and the positions of the rolling assemblies on the frame are adjustable.

Another object of the present utility model is to provide a welding apparatus comprising a cell side rolling device according to any of the above aspects.

This welding equipment use the side roll-in device of electric core of above-mentioned scheme, can be before the electric core goes into the shell with the side roll-in of electric core level, can not produce the bubble in the side, ensure that the size of electric core accords with the standard before going into the shell, improved the production quality of the electric core that the production obtained to guarantee the continuity of follow-up encapsulation and welding process, can not lead to the fact the shut down because of electric core goes into shell card and is blocked, need not manual intervention, improved the security of production in the time of having improved production efficiency.

The beneficial effects are that:

according to the battery cell side rolling device, the driving block is used for driving the rolling structure to be close to the side edge of the battery cell and simultaneously close to the side edge of the battery cell, so that the rolling structure contacts the side edge of the battery cell and extrudes and flattens the side edge of the battery cell; subsequently, the roll-in structure rotates around the Y axis by a preset angle, and the side edge of the battery cell is rolled and leveled downwards, so that the side edge of the battery cell cannot be overhigh, even bubbles in the side edge of the battery cell are extruded, the height of the side edge of the battery cell meets the requirement of the battery cell for entering the shell, and manual operation is not needed. This electric core side roll-in device can be automatic with electric core side roll-in leveling, has improved the production quality of the electric core that produces to guarantee the continuity of follow-up encapsulation technology and welding process, can not lead to the fact the shut down because of electric core income shell card is ton, need not artifical the intervention, improved the security of production in the time of production efficiency.

Drawings

Fig. 1 is an isometric view of a cell side rolling device according to an embodiment of the present utility model.

In the figure:

10. a roll-in assembly; 20. a frame; 100. a mounting base; 110. a first driving member; 120. a limit stop; 130. a slide rail; 200. a driving block; 210. a slide block; 220. a second driving member; 300. a roll-in structure; 310. a rotating shaft; 320. and (5) pressing the blocks by a roller.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides welding equipment, which comprises a battery cell shell-entering device, a welding device and a battery cell side rolling device. The battery core winding core which is produced by the welding equipment is placed in the aluminum shell by using the battery core shell-entering device, and then the aluminum shell and the top cover are welded by the welding device, so that the closed assembly of the battery core is completed. Before the battery cell is put into the shell, the side edge rolling device of the battery cell is required to be used for rolling and flattening the side edge of the battery cell, air bubbles are not generated in the side edge, the size of the battery cell is ensured to meet the standard before the battery cell is put into the shell, the production quality of the battery cell obtained by production is improved, the continuity of a subsequent packaging process and a welding process is ensured, shutdown caused by the clamping of the battery cell into the shell is avoided, manual intervention is not required, and the production safety is improved while the production efficiency is improved.

The specific structure and detailed technical scheme of the cell side rolling device in this embodiment are described in detail below with reference to fig. 1. The first direction in this embodiment is the X direction in fig. 1, that is, the direction opposite to the side of the cell to be rolled and flattened; the Y-axis is the Y-direction shown in fig. 1, i.e., the direction in which the side of the cell is to be rolled.

Specifically, the cell side rolling device comprises at least one group of rolling assemblies 10, wherein the rolling assemblies 10 comprise a mounting base 100, a driving block 200 and a rolling structure 300; the driving block 200 is slidably connected to the mounting base 100 and can approach the side of the battery cell along the first direction; the rolling structure 300 is rotatably connected to the driving block 200 and can rotate around the Y-axis by a predetermined angle, so that the rolling structure 300 can contact the side of the battery cell and roll the side of the battery cell.

The battery cell side rolling device in the embodiment drives the rolling structure 300 to be close to the side of the battery cell by using the driving block 200 to be close to the side of the battery cell, so that the rolling structure 300 contacts the side of the battery cell and extrudes and flattens the side of the battery cell; subsequently, the rolling structure 300 rotates around the Y axis by a preset angle, and rolls down the side edge of the battery cell to be flat, so that the side edge of the battery cell cannot be overhigh, even air bubbles in the side edge of the battery cell are extruded, the height of the side edge of the battery cell meets the requirement of the battery cell for entering the shell, and manual operation is not needed. This electric core side roll-in device can be automatic with electric core side roll-in leveling, has improved the production quality of the electric core that produces to guarantee the continuity of follow-up encapsulation technology and welding process, can not lead to the fact the shut down because of electric core income shell card is ton, need not artifical the intervention, improved the security of production in the time of production efficiency.

Further, the roll pressing structure 300 in this embodiment is rotated by 15 ° from top to bottom around the Y axis, so as to flatten the side edges of the roll piezoelectric core. Those skilled in the art can set the preset angle and direction of rotation according to specific requirements, and will not be described here again.

Specifically, the mounting base 100 is provided with a first driving element 110, and the driving block 200 is connected to an output end of the first driving element 110 in a driving manner. In this embodiment, the first driving member 110 is a linear driving motor, and is capable of driving the driving block 200 to perform a linear reciprocating motion along the first direction smoothly, so as to drive the rolling structure 300 to approach or separate from the side of the battery cell.

Further, either one of the driving block 200 and the mounting base 100 is provided with a slide rail 130, and the other is provided with a slider 210 slidably coupled to the slide rail 130. In this embodiment, the mounting base 100 is provided with the sliding rail 130, and the driving block 200 is provided with the sliding block 210, so that the movement of the driving block 200 is smoother and smoother, and the guiding function can be achieved.

As a preferred embodiment, the side wall of the mounting base 100 and both sides of the driving block 200 along the first direction are provided with limit stops 120. The limit stops 120 are arranged on two sides of the driving block 200, so that the driving block 200 can be prevented from moving beyond a range, the battery core is prevented from being damaged due to the fact that the rolling structure 300 is too close to the battery core, the driving block 200 can be prevented from falling off from two ends of the guide rail, and the stability and reliability of installation are ensured.

With continued reference to fig. 1, the driving block 200 is provided with a second driving member 220, and an output end of the second driving member 220 is in driving connection with the rolling structure 300. The second driving member 220 in this embodiment is a rotary driving motor, and can stably drive the rolling structure 300 to perform a rotary reciprocating motion, so as to roll and flatten the side edges of the battery cells.

Specifically, the rolling structure 300 includes a rotating shaft 310 and a rolling block 320, wherein the rotating shaft 310 is rotatably connected to the driving block 200, and the rolling block 320 is connected to the rotating shaft 310 and can rotate synchronously with the rotating shaft 310. In this embodiment, the roller block 320 is fixedly connected with the rotating shaft 310 or integrally formed, or the rotating shaft 310 is inserted into the roller block 320, and the inserted connection portion is matched with the rotating shaft 310 through a protrusion, a groove or other structures, so that the roller block 320 can be driven to rotate when the second driving member 220 drives the rotating shaft 310 to perform a rotation motion, so that the roller block 320 can roll and flatten the side edge of the battery cell.

Further, one of the side walls of the two ends of the roller block 320 along the first direction, which is close to the side edge of the battery cell, is a curved surface. In this embodiment, the roller pressing block 320 is of a semi-cylindrical structure, and the curved side wall of the semi-cylindrical structure is used for rolling and leveling the side edge of the battery cell, so that the side edge of the battery cell is rolled into an arc shape, the rolling effect is higher, and the side edge of the battery cell is not easy to damage.

As a preferred embodiment, two rolling assemblies 10 are disposed opposite to each other along the first direction, and the two rolling assemblies 10 are used for rolling and leveling two opposite sides of the battery cell along the first direction in a one-to-one correspondence manner. Through setting up two roll-in subassemblies 10, can carry out the roll-in to the both sides limit of electric core simultaneously and level, improve roll-in efficiency, shorten the time that levels electric core side and need.

Further alternatively, the rolling assemblies 10 are all disposed on the frame 20, and the rolling assemblies 10 are adjustable in position on the frame 20. The battery cell side rolling device in the embodiment is used for rolling the long side of the battery cell, namely, the battery cell is placed into the aluminum shell along the long side, and the battery cells with different widths can be rolled and leveled by adjusting the position of the rolling assembly 10, so that the application range of the battery cell is improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Cell side roll-in device, characterized in that, including at least a set of roll-in subassembly (10), roll-in subassembly (10) include:

a mounting base (100);

the driving block (200) is connected to the mounting base (100) in a sliding manner, and can be close to the side edge of the battery cell along a first direction;

the rolling structure (300) is rotationally connected to the driving block (200) and can rotate around the Y axis by a preset angle, so that the rolling structure (300) can contact the side edge of the battery cell and roll the side edge of the battery cell.

2. The cell side rolling device according to claim 1, wherein the mounting base (100) is provided with a first driving member (110), and an output end of the first driving member (110) is in driving connection with the driving block (200).

3. The cell side rolling device according to claim 2, wherein either one of the driving block (200) and the mounting base (100) is provided with a slide rail (130), and the other is provided with a slider (210) in sliding connection with the slide rail (130).

4. The cell side rolling device according to claim 2, wherein limit stops (120) are provided on both sides of the driving block (200) along the first direction on the side wall of the mounting base (100).

5. The cell side rolling device according to claim 1, wherein the driving block (200) is provided with a second driving member (220), and an output end of the second driving member (220) is in driving connection with the rolling structure (300).

6. The cell side rolling device according to claim 5, wherein the rolling structure (300) comprises a rotating shaft (310) and a rolling block (320), the rotating shaft (310) is rotatably connected to the driving block (200), and the rolling block (320) is connected to the rotating shaft (310) and can synchronously rotate with the rotating shaft (310).

7. The cell side rolling device according to claim 6, wherein one of the side walls of the two ends of the rolling block (320) along the first direction, which is close to the cell side, is curved.

8. The device for rolling side edges of battery cells according to claim 1, wherein two rolling assemblies (10) are oppositely arranged along the first direction, and the two rolling assemblies (10) are used for rolling and leveling two side edges of the battery cells oppositely along the first direction in a one-to-one correspondence manner.

9. The cell side rolling device according to claim 8, wherein the rolling assemblies (10) are all arranged on a frame (20), and the rolling assemblies (10) are adjustable in position on the frame (20).

10. Welding apparatus, characterized in that it comprises a cell side rolling device according to any one of claims 1-9.