CN219379832U

CN219379832U - Positioning tool for cutting electrode lugs of battery cells

Info

Publication number: CN219379832U
Application number: CN202320431925.6U
Authority: CN
Inventors: 余隆宇
Original assignee: Cornex New Energy Co ltd
Current assignee: Cornex New Energy Co ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-07-21
Anticipated expiration: 2033-03-08

Abstract

The utility model discloses a positioning tool for cutting battery cell tabs, which comprises a bottom plate, a telescopic assembly and a clamping assembly, wherein the telescopic assembly is arranged on the bottom plate and is used for adjusting the length of the bottom plate so as to enable the length of the bottom plate to be matched with the lengths of different battery cells; the clamping assembly is arranged on the bottom plate and used for fixing the battery cell on the bottom plate. The positioning tool disclosed by the utility model can be compatible with square lithium ion batteries of multiple types, does not need to be developed in a reorientation way aiming at batteries of new types, saves the development cost of research and development personnel, and improves the development progress of new products, so that company products are more competitive.

Description

Positioning tool for cutting electrode lugs of battery cells

Technical Field

The utility model belongs to the technical field of lithium ion battery manufacturing, and particularly relates to a positioning tool for cutting a battery cell tab.

Background

In order to meet the requirements of the lithium ion battery for various specifications and models in the market and the requirements of the single-type battery for continuously improving the energy density, the structural parts of the battery are continuously updated and optimized; the model change of the battery and the optimization of the internal structural components can enable equipment tools for assembling the battery to be changed continuously. Every time the new type battery or the optimization of the structural member of the existing type battery is replaced, a set of tool is required to be manufactured again, and the cost and the resource waste are huge. The existing tab cutting tool is aimed at the appointed battery model, the appointed battery structure is developed and designed directionally, and no adjustment and compatibility functions exist.

The utility model has the advantages of the application number is 201020663178.1, and the patent name is frock of tailorring lithium ion battery utmost point ear, and this frock can be through adjusting left location briquetting and right location briquetting relative position on the bottom plate to the electric core of different models of adaptation, but this patent still has following defect: 1) The length of the bottom plate cannot be adjusted, the battery cores with different lengths cannot be matched, and the compatibility is low; 2) The limit cannot be formed on the length direction of the battery cell, the battery cell is easy to deviate front and back in the cutting process of the tab, and the cutting face of the tab is irregular.

Based on the above, the utility model aims at providing a positioning tool for cutting the battery cell tab aiming at the technical problems.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a positioning tool for cutting the electrode lugs of the battery cells. The positioning tool disclosed by the utility model can be compatible with square lithium ion batteries of multiple types, does not need to be developed in a reorientation way aiming at batteries of new types, saves the development cost of research and development personnel, and improves the development progress of new products, so that company products are more competitive.

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

the positioning tool for cutting the battery cell tab comprises a bottom plate, a telescopic assembly and a clamping assembly, wherein the telescopic assembly is arranged on the bottom plate and is used for adjusting the length of the bottom plate so that the length of the bottom plate is matched with the lengths of different battery cells; the clamping assembly is arranged on the bottom plate and used for fixing the battery cell on the bottom plate.

Preferably, the bottom plate at least comprises two flat plate units, the telescopic assembly is arranged between two adjacent flat plate units, and the telescopic assembly is used for adjusting the distance between the two flat plate units.

Further, the telescopic assembly comprises a sliding rod and a first fastening piece, a first sliding groove for the sliding rod to slide back and forth is formed in the flat plate unit, and a first strip-shaped through hole is formed in the sliding rod; the first fastener penetrates through the first strip-shaped through hole and is fixedly connected with the flat plate unit, so that the sliding rod is pressed tightly.

Preferably, the clamping assembly comprises at least two clamping units, the two clamping units are symmetrically arranged on the bottom plates at two sides of the width direction of the battery cell, and the distance between the two clamping units is adjustable.

Further, each clamping unit comprises a baffle, a fixed plate and a second fastener, the baffle is fixedly connected with the fixed plate, a second strip-shaped through hole is formed in the fixed plate along the width direction of the bottom plate, and a plurality of mounting hole sites are formed in the bottom plate along the width direction of the bottom plate; the second fastener penetrates through the second strip-shaped through hole and is fixedly connected with the mounting hole site, so that the fixing plate is pressed.

Still further, be provided with the second spout along its width direction on the bottom plate, the fixed plate inlays in the second spout and forms sliding fit relation with it.

Still further, the baffle is close to be provided with the rubber pad on the side of electric core.

Still further, the clamping unit is close to the outer end setting of bottom plate length direction, the baffle outer end is provided with the electric core forms spacing complex stopper in length direction.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, the length of the bottom plate can be adjusted through the telescopic component, and the battery cores with different lengths can be compatible in the Y-axis direction; the clamping distance in the width direction of the battery cell can be adjusted through the clamping unit, and the battery cells with different widths can be compatible in the X-axis direction; the tool disclosed by the utility model is simple in structure and easy to adjust, saves the labor cost of mold changing and improves the mold changing efficiency.

According to the utility model, the clamping unit is arranged close to the outer end of the bottom plate in the degree direction, and the limiting block which is in limiting fit with the battery cell in the length direction is arranged at the outer end of the baffle plate, so that the limiting block can limit the length direction of the battery cell when the clamping unit clamps the battery cell, and the defect that the cutting surface of the tab is not neat due to the fact that the battery cell is easy to deviate forwards and backwards is overcome.

Drawings

FIG. 1 is a schematic perspective view of a positioning tool according to the present utility model;

FIG. 2 is a schematic top view of the positioning tool of the present utility model;

fig. 3 is a schematic diagram of a three-dimensional structure of the positioning tool applied to cutting a battery cell.

Reference numerals illustrate: 1-a bottom plate; 11-a flat plate unit; 2-telescoping assembly; 21-a slide bar; 22-a first fastener; 23-a first chute; 24-a first bar-shaped through hole; 3-a clamping assembly; 31-a clamping unit; 311-baffle plates; 312-fixing plates; 313-a second fastener; 314-second bar-shaped through holes; 315-mounting hole site; 316-a second chute; 317-limiting blocks; 318-rubber pad; 4-an electric core; 41-tab.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

As shown in fig. 1-3, a positioning tool for cutting a battery cell tab comprises a bottom plate 1, a telescopic assembly 2 and a clamping assembly 3, wherein the telescopic assembly 2 is arranged on the bottom plate 1, and the telescopic assembly 2 is used for adjusting the length of the bottom plate 1 so that the length of the bottom plate 1 is matched with the lengths of different battery cells 4; the clamping assembly 3 is arranged on the bottom plate 1, and the clamping assembly 3 is used for fixing the battery cell 4 on the bottom plate 1.

Wherein, bottom plate 1 includes two flat board units 11, is provided with flexible subassembly 2 between two adjacent flat board units 11, and flexible subassembly 2 is used for adjusting the distance between two flat board units 11. The distance between the two flat units 11 can be adjusted by the telescopic assembly 2, so that the length of the bottom plate 1 is adjusted to be suitable for the battery cells 4 with different lengths.

Specifically, the telescopic assembly 2 comprises a sliding rod 21 and a first fastening piece 22, wherein the sliding rod 21 adopts a rectangular long rod, and the first fastening piece 22 adopts a fastening bolt. The side walls of the two flat plate units 11 are symmetrically provided with first sliding grooves 23 for the sliding rod 21 to slide forwards and backwards, and the sliding rod 21 is provided with a first strip-shaped through hole 24; the first fastening member 22 is fixedly connected to the flat plate unit 11 through the first bar-shaped through hole 24, thereby pressing the slide bar 21.

When the length of the bottom plate 1 needs to be shortened, the first fastening piece 22 is loosened, the two flat plate units 11 are mutually closed, so that the sliding rod 21 is slidably inserted into the first sliding groove 23, and after the set length is reached, the length of the bottom plate 1 can be shortened by screwing the first fastening piece 22 to fix the sliding rod 21, and vice versa.

The clamping assembly 3 includes four clamping units 31, each two clamping units 31 are symmetrically arranged on the bottom plate 1 at two sides of the width direction of the battery cell 4, and the distance between the two oppositely arranged clamping units 31 is adjustable. The distance between the opposite two clamping units 31 can be adjusted to be adapted to the different width of the battery cells 4.

Specifically, each clamping unit 31 includes a baffle 311, a fixing plate 312, and a second fastening member 313, where the baffle 311 and the fixing plate 312 are fixedly connected, the fixing plate 312 is provided with a second bar-shaped through hole 314 along the width direction of the base plate 1, and the base plate 1 is provided with a plurality of mounting holes 315 along the width direction of the base plate 1; the second fastening member 313 is fixedly coupled to the mounting hole 315 through the second bar-shaped through hole 314, thereby pressing the fixing plate 312. The position of the fixing plate 312 can be moved on the base plate 1 so as to adjust the clamping distance between the opposite two baffles 311 to be adapted to the cells 4 of different widths.

Further, the bottom plate 1 is provided with a second sliding groove 316 along the width direction, and the fixing plate 312 is embedded in the second sliding groove 316 and forms a sliding fit relationship with the second sliding groove. The second chute 316 can be arranged to move the position of the fixed plate 312 better, and the adjustment of the distance is more convenient.

In order to avoid the situation that the battery cell 4 is damaged when the clamping assembly 3 clamps the battery cell 4, a rubber pad 318 is arranged on the side surface of the baffle 311, which is close to the battery cell 4.

In order to avoid shaking of the battery cell 4 during cutting of the tab 41, the clamping unit 31 is disposed near the outer end of the bottom plate 1 in the length direction, and a stopper 317 in limit fit with the battery cell 4 in the length direction is disposed at the outer end of the baffle 311.

When the cell 4 with the narrower width needs to be adapted, the second fastening member 313 is loosened, the two clamping units 31 are mutually closed, so that the fixing block slides in the second sliding groove 316, and after reaching the set width, the fixing block is fastened by tightening the second fastening member 313, so that the cell 4 with the narrower width can be adapted, and vice versa.

The utility model relates to a positioning tool for cutting battery cell tabs by using a lamination with a compatible function, which can achieve the purpose of changing the battery model by only adjusting the existing tool without developing and designing in a reorientation way.

According to the description of the utility model and the accompanying drawings, a positioning tool for cutting the battery cell tab can be easily manufactured or used by a person skilled in the art, and the positive effects described by the utility model can be produced.

Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional relationship indicated is based on the positional relationship indicated in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationship in the present utility model are merely for exemplary illustration and should not be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meaning of the above terms in conjunction with the drawings and according to the specific circumstances.

Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.

Claims

1. The positioning tool for cutting the battery cell electrode lugs is characterized by comprising a bottom plate (1), a telescopic assembly (2) and a clamping assembly (3), wherein the telescopic assembly (2) is arranged on the bottom plate (1), and the telescopic assembly (2) is used for adjusting the length of the bottom plate (1) so that the length of the bottom plate (1) is matched with the lengths of different battery cells (4); the clamping assembly (3) is arranged on the bottom plate (1), and the clamping assembly (3) is used for fixing the battery cell (4) on the bottom plate (1).

2. The positioning tool for cutting the battery cell tab according to claim 1, wherein: the base plate (1) at least comprises two flat plate units (11), a telescopic assembly (2) is arranged between every two adjacent flat plate units (11), and the telescopic assembly (2) is used for adjusting the distance between the two flat plate units (11).

3. The positioning tool for cutting the battery cell tab according to claim 2, wherein: the telescopic assembly (2) comprises a sliding rod (21) and a first fastening piece (22), a first sliding groove (23) for the sliding rod (21) to slide forwards and backwards is formed in the flat plate unit (11), and a first strip-shaped through hole (24) is formed in the sliding rod (21); the first fastening piece (22) passes through the first strip-shaped through hole (24) and is fixedly connected with the flat plate unit (11), so that the sliding rod (21) is pressed.

4. A positioning fixture for cutting a battery cell tab according to any one of claims 1-3, wherein: the clamping assembly (3) comprises at least two clamping units (31), the two clamping units (31) are symmetrically arranged on the bottom plates (1) on two sides of the electric core (4) in the width direction, and the distance between the two clamping units (31) is adjustable.

5. The positioning tool for cutting the battery cell tab according to claim 4, wherein: each clamping unit (31) comprises a baffle plate (311), a fixed plate (312) and a second fastening piece (313), the baffle plates (311) are fixedly connected with the fixed plate (312), a second strip-shaped through hole (314) is formed in the fixed plate (312) along the width direction of the bottom plate (1), and a plurality of mounting hole sites (315) are formed in the bottom plate (1) along the width direction of the bottom plate (1); the second fastening piece (313) passes through the second strip-shaped through hole (314) and is fixedly connected with the installation hole site (315), so that the fixing plate (312) is pressed.

6. The positioning tool for cutting the battery cell tab according to claim 5, wherein: the bottom plate (1) is provided with a second chute (316) along the width direction thereof, and the fixing plate (312) is embedded in the second chute (316) and forms a sliding fit relationship with the second chute.

7. The positioning tool for cutting the battery cell tab according to claim 5, wherein: a rubber pad (318) is arranged on the side surface, close to the battery cell (4), of the baffle plate (311).

8. The positioning tool for cutting the battery cell tab according to claim 5, wherein: the clamping unit (31) is arranged close to the outer end of the bottom plate (1) in the length direction, and a limiting block (317) which is in limiting fit with the battery cell (4) in the length direction is arranged at the outer end of the baffle plate (311).