CN210253762U

CN210253762U - Punching device for battery core lug

Info

Publication number: CN210253762U
Application number: CN201920934553.2U
Authority: CN
Inventors: 黄晓波; 卢红波
Original assignee: Suzhou Youlion Battery Inc
Current assignee: Suzhou Youlion Battery Inc
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-07
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a die-cut device of electric core utmost point ear, including the lower plate, the cutter board, guiding axle and at least a set of cutter unit spare, the guiding axle is installed perpendicularly on the lower plate, the cutter board removes along the length direction of guiding axle under the guiding action of guiding axle, cutter unit spare includes cutter and lower cutter, lower cutter is fixed on the lower plate, go up cutter fixed mounting on the cutter board, go up the cutter and be provided with the tool bit towards one side of lower plate, the side of lower cutter is provided with the sword groove that matches with the tool bit, be provided with the electric core direction subassembly that leads electric core when being used for placing electric core on the lower plate. The utility model provides a die-cut device of electricity core utmost point ear, it can amputate utmost point ear on four angles of square electricity core, places electric core on the lower plate, removes the cutting board and can accomplish die-cut, improves the work efficiency who amputates utmost point ear, has practiced thrift operating time, and direction and the fixed action through electric core direction subassembly make the excision accurate simultaneously.

Description

Punching device for battery core lug

Technical Field

The utility model relates to a die-cut device especially relates to a die-cut device of electricity core utmost point ear.

Background

The battery core is divided into a square battery core, a cylindrical battery electrical property and the like according to the shape. As shown in fig. 1, the square battery cell is made by winding, and tabs are arranged at four corners a, b, c and d of the square battery cell. Currently, tabs at four corners are generally reserved in the industry, but the tabs at the positions occupy space, so that the electrolyte permeation is influenced, and the battery performance is influenced. When the utmost point ear on four angles of square electric core of needs excision, when amputating electric core utmost point ear at present, in order to guarantee to cut the specification unanimity, need measure, consequently cut inefficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an electricity core utmost point ear die-cut device, it can amputate the utmost point ear on four angles of square electricity core, solves the problem that current utmost point ear excision mode is inefficiency.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a die-cut device of electric core utmost point ear, includes bottom plate, cutter board, guiding axle and at least a set of cutter unit spare, the guiding axle is installed perpendicularly on the bottom plate, the cutter board along under the guiding action of guiding axle the length direction of guiding axle removes, cutter unit spare includes cutter and lower cutter, the cutter is fixed down on the bottom plate, it is in to go up cutter fixed mounting on the cutter board, go up the cutter orientation one side of bottom plate is provided with the tool bit, the side of cutter down be provided with the sword groove that the tool bit matches, be provided with the electric core guide unit spare that leads electric core when being used for placing electric core on the bottom plate.

Preferably, the side edge of the lower bottom plate is provided with a slot, the slot extends from the side edge of the lower bottom plate to the inside of the lower bottom plate, and the lower cutter is connected with the inner wall of the slot.

Preferably, the part of the lower base plate, which is far away from the slot from the edge of the slot, is a table surface part, and the table surface part protrudes relative to the cutter plate.

Preferably, the cutter plate is provided with a pressing assembly, the pressing assembly comprises a pressing head, a connecting piece and a pressing head return spring, the connecting piece is fixed on the cutter plate, the pressing head is arranged between the cutter plate and the lower bottom plate, and the pressing head return spring is arranged between the pressing head and the connecting piece.

Preferably, the pressing assembly further comprises a first supporting column, the first supporting column is movably mounted on the connecting piece, the pressing head is fixedly connected to one end of the first supporting column, the other end of the first supporting column is connected with a limiting gasket, and the pressing head is sleeved with a return spring.

Preferably, the upper cutter is fixedly provided with a sliding block, the lower cutter is provided with a sliding rail, the sliding rail is perpendicular to the lower base plate, and the sliding block is slidably mounted on the sliding rail and slides along the length direction of the sliding rail.

Preferably, the cell guide assembly includes a plurality of cell guide blocks, and a cell guide cavity is formed between the cell guide blocks.

Preferably, the punching device for the battery core lug further comprises an upper base plate, and one end, far away from the lower base plate, of the guide shaft is connected with the upper base plate.

Preferably, a pressing block is arranged on the cutter plate, penetrates through the upper bottom plate and extends towards the direction far away from the upper bottom plate.

Preferably, the lower base plate is fixedly provided with a second support column, the second support column is perpendicular to the lower base plate, the cutter plate is movably mounted on the second support column, a cutter plate return spring is sleeved on the second support column, and the cutter plate return spring is arranged between the cutter plate and the lower base plate.

The utility model has the advantages that: the utility model provides an electricity core utmost point ear die-cut device, it can amputate utmost point ear on four angles of square electric core, places electric core on the lower plate, removes the cutting board and can accomplish die-cut, improves the work efficiency who amputates utmost point ear, has practiced thrift operating time, makes the excision accurate through the direction and the fixed action of electric core direction subassembly simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of an electrical core of the present invention;

fig. 2 is a schematic front structural view of the present invention;

fig. 3 is a schematic view of the back structure of the present invention;

fig. 4 is a schematic front view of the cutter assembly of the present invention;

fig. 5 is a schematic view of the back side structure of the cutter assembly of the present invention;

fig. 6 is a schematic structural view of the compressing assembly of the present invention;

fig. 7 is a schematic structural view of the battery cell after cutting off the tab;

wherein: 1. the battery cell cutting device comprises a lower bottom plate, 2. a cutting plate, 3. a guide shaft, 4. a linear bearing, 5. a cutting plate return spring, 6. a groove, 7. a battery cell guide assembly, 7a battery cell guide block, 8. an upper cutter, 8a cutter head, 8b a sliding block, 9. a lower cutting knife, 9a cutter groove, 9b a sliding rail, 10. a connecting piece, 11. a pressure head, 12. a pressure head return spring, 13. a first support, 14. a limiting gasket, 15. an upper bottom plate, 16. a pressure block, 17. a stop pin and 18. a second support.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to 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 in specific cases to those skilled in the art.

As shown in fig. 2 and fig. 3, a die-cutting device for a battery tab includes a lower base plate 1, a cutter plate 2, a guide shaft 3, an upper base plate 15, and at least one cutter assembly. Wherein, lower plate 1, cutter board 2 and upper plate 15 set gradually from the bottom up, and are parallel to each other. In this embodiment, the number of cutter assemblies is preferably two.

The side of the lower bottom plate 1 is provided with a slot 6, and the slot 6 extends from the edge of the rear side of the lower bottom plate 1 to the inside of the lower bottom plate 1. The cutter plate 2 and the upper base plate 15 are disposed above the slot 6. The part of the lower bottom plate 1, which is far away from the slot 6 from the edge of the slot 6, is a table top part, and the table top part is a position for placing the battery cell. The table portion protrudes from the cutter plate 2 and the upper bottom plate 15, so that the cutter plate 2 and the upper bottom plate 15 do not affect the placement of the battery cell by a user.

And a battery cell guide assembly 7 for guiding the battery cell when the battery cell is placed is arranged on the lower bottom plate 1. The cell guide assembly 7 includes a plurality of cell guide blocks 7a. And a battery cell guide cavity is formed between the battery cell guide blocks 7a, and the battery cell is placed in the battery cell guide cavity under the guide effect of the battery cell guide blocks 7a when the battery cell is placed. In this embodiment, the number of the cell guide blocks 7a is six, wherein two cell guide blocks 7a are disposed on the long edge of the cell guide cavity, and one cell guide block 7a is disposed on the short edge of the cell guide cavity. The cell guide block 6a arranged at a position close to the slot 6 is connected with the inner wall of the slot 6, and the height of the cell guide block is higher than the top surface of the lower base plate 1.

The guide shaft 3 serves to guide the movement of the cutter plate 2. The guide shaft 3 is vertically installed on the lower plate 1. The bottom end of the guide shaft 3 is connected with the surface of the lower bottom plate 1, and the end of the guide shaft 3 far away from the lower bottom plate 1 is connected with the bottom surface of the upper bottom plate 15. In the present embodiment, the number of the guide shafts 3 is four to ensure the stability of the cutter plate 2. The cutter plate 2 moves along the length direction of the guide shaft 3. The cutter plate 2 is provided with a through hole at a position corresponding to the guide shaft, and a linear bearing 4 is installed at the through hole position to reduce the friction force between the cutter plate 2 and the guide shaft 3 when moving.

A second support column 18 is fixedly arranged on the lower base plate 1. The bottom end of the second leg 18 is connected to the top surface of the lower plate. The second support column 18 is vertical to the lower base plate 1, the cutter plate 2 is movably arranged on the second support column 18, and the cutter plate 2 moves along the length direction of the second support column 18. The second support column 18 is sleeved with a cutter plate return spring 5, and the cutter plate return spring 5 is arranged between the cutter plate 2 and the lower base plate 1. The cutter plate 2 is driven by the user to move downwards and the cutter plate return spring 5 is compressed. When the user cancels the driving force, the cutter plate 1 is jacked up under the action of the cutter plate return spring 5 to return to the initial state. The second support 18 serves to support and guide the cutter plate return spring 5. In order to ensure stability, the number of the second support posts 18 and the cutter plate return springs 5 is two, and the two support posts are respectively positioned near the left end and the right end of the lower base plate 1. The cutter plate 2 is provided with a hole through which the second leg 18 passes.

The top surface of the cutter plate 2 is provided with a pressing block 16. The upper bottom plate 15 is provided with a through hole, and the pressing block 16 passes through the through hole of the upper bottom plate 15 and extends upward. The pressing piece 16 is a pressing portion when the user drives the cutter plate 2 to move downward. The operation of the user is facilitated by pressing the pressing block 16, and the pressing distance of the pressing block 16 is limited due to the existence of the upper base plate 15, so that the cutter plate 2 is prevented from moving too far. The top end of the pressing block 16 is connected with a stop pin 17.

The two cutter assemblies are symmetrically arranged.

Referring to fig. 4 and 5, the cutter assembly includes an upper cutter 8 and a lower cutter 9, the lower cutter 9 is fixed on the lower base plate 1, and the upper cutter 8 is fixedly mounted on the cutter plate 2. The lower cutter 9 is connected with the inner wall of the slot 6. The side of the upper cutter 8 facing the lower bottom plate 1 is provided with a cutter head 8a, and the side of the lower cutter 9 is provided with a cutter groove 9a matched with the cutter head 8a. When a cell is placed in the cell guide cavity, the knife slot 9a is below the cell tab.

The upper cutter 8 is fixedly provided with a sliding block 8b, the lower cutter 9 is provided with a sliding rail 9b, the sliding rail 9b is perpendicular to the lower base plate 1, the sliding block 8b is slidably mounted on the sliding rail 9b, and the sliding block 8b slides along the length direction of the sliding rail 9b. So can guarantee that the position of going up cutter 8 and lower cutter 9 is corresponding, prevent that both position excursions from influencing die-cut electric core utmost point ear.

The cutter plate 2 is provided with a pressing component. The effect of compressing tightly the subassembly is to push down electric core when die-cut electric core utmost point ear.

Referring to fig. 6, the pressing assembly includes a pressing head 11, a connecting member 10, a pressing head return spring 12, and a first support 13. The connecting piece 10 is a strip which is fixed on the side of the cutter plate 2. The first support 13 is arranged vertically. The first support 13 is movably mounted on the connecting member 10. The connecting piece 10 is provided with a hole through which the first leg 13 moves. The pressure head 11 is fixedly connected to the bottom end of the first pillar 13, and the top end of the first pillar 13 is connected with a limiting gasket 14 to prevent the first pillar 13 from being separated from the connecting piece 10. The pressure head return spring 12 is sleeved on the first support column 13, and the pressure head return spring 12 is arranged between the pressure head 11 and the connecting piece 10. The pressure head 11 is arranged between the cutter plate 2 and the lower bottom plate 1, and the pressure head 11 is positioned above the cell guiding component 7.

The use process of the battery core lug punching device is as follows:

(1) the square battery core is placed in the battery core guide cavity between the battery core guide blocks 7a, and the pressing block 16 is pressed to enable the cutter plate 2 to move downwards, so that the upper cutter 8 and the pressing assembly synchronously move downwards.

(2) The pressure head 11 of the pressing assembly presses the surface of the battery core, and the pressure head return spring 12 is compressed to provide pressure.

(3) The cutter head 8a of the upper cutter 8 and the cutter groove 9a of the lower cutter 9 are matched to cut off two tabs of the battery core.

(4) At the moment, the pressing block 16 is loosened, and the cutter plate 2 is rapidly bounced and reset under the action of the cutter plate reset spring 5. The pressure head is pushed downwards by the pressure head return spring 12, and the pressure head 11 is reset.

(5) And then taking out the battery cell, overturning, and repeating the operation to cut off the other two tabs.

As shown in fig. 7, after the battery cell tab punching device processes, four tab portions of the battery cell are cut off.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. A punching device for a battery core lug is characterized by comprising a lower bottom plate (1), a cutter plate (2), a guide shaft (3) and at least one group of cutter components, the guide shaft (3) is vertically arranged on the lower bottom plate (1), the cutter plate (2) moves along the length direction of the guide shaft (3) under the guide action of the guide shaft (3), the cutter component comprises an upper cutter (8) and a lower cutter (9), the lower cutter (9) is fixed on the lower bottom plate (1), the upper cutter (8) is fixedly arranged on the cutter plate (2), one side of the upper cutter (8) facing the lower bottom plate (1) is provided with a cutter head (8a), a knife groove (9a) matched with the knife head (8a) is arranged on the side edge of the lower cutter (9), and the lower bottom plate (1) is provided with a battery cell guide assembly (7) for guiding the battery cell when the battery cell is placed.

2. The punching device for the battery core tabs according to claim 1, wherein the side edges of the lower base plate (1) are provided with slots (6), the slots (6) extend from the side edges of the lower base plate (1) to the inside of the lower base plate (1), and the lower cutters (9) are connected with the inner walls of the slots (6).

3. The battery tab punching device according to claim 2, characterized in that the part of the lower base plate (1) away from the slot (6) from the edge of the slot (6) is a table surface part which protrudes relative to the cutter plate (2).

4. The punching device for the battery core tabs according to claim 1, wherein a pressing assembly is mounted on the cutter plate (2), the pressing assembly comprises a pressing head (11), a connecting piece (10) and a pressing head return spring (12), the connecting piece (10) is fixed on the cutter plate (2), the pressing head (11) is arranged between the cutter plate (2) and the lower base plate (1), and the pressing head return spring (12) is arranged between the pressing head (11) and the connecting piece (10).

5. The die-cut device of battery core utmost point ear of claim 4, characterized in that, the pressure subassembly still includes first pillar (13), first pillar (13) movable mounting is in on connecting piece (10), pressure head (11) fixed connection is in the one end of first pillar (13), the other end of first pillar (13) is connected with spacing gasket (14), pressure head reset spring (12) cover is established on first pillar (13).

6. The punching device for the battery core tabs according to claim 1, wherein a sliding block (8b) is fixedly arranged on the upper cutter (8), a sliding rail (9b) is arranged on the lower cutter (9), the sliding rail (9b) is perpendicular to the lower base plate (1), the sliding block (8b) is slidably mounted on the sliding rail (9b), and the sliding block (8b) slides along the length direction of the sliding rail (9 b).

7. The punching device for the battery core tabs according to claim 1, wherein the battery core guide assembly (7) comprises a plurality of battery core guide blocks (7a), and a battery core guide cavity is formed between the battery core guide blocks (7 a).

8. The battery tab punching device according to claim 1, further comprising an upper base plate (15), wherein one end of the guide shaft (3) far away from the lower base plate (1) is connected to the upper base plate (15).

9. The battery tab punching device according to claim 8, wherein a pressing block (16) is arranged on the cutter plate (2), and the pressing block (16) penetrates through the upper bottom plate (15) and extends in a direction away from the upper bottom plate (15).

10. The punching device for the battery core tabs according to claim 1, wherein a second support column (18) is fixedly arranged on the lower base plate (1), the second support column (18) is perpendicular to the lower base plate (1), the cutter plate (2) is movably arranged on the second support column (18), a cutter plate return spring (5) is sleeved on the second support column (18), and the cutter plate return spring (5) is arranged between the cutter plate (2) and the lower base plate (1).