Battery cell positioning device

Abstract

The utility model relates to a battery cell positioning device which comprises a supporting body, battery cells needing to be positioned are placed on the supporting body, and the two battery cells are arranged in a spaced mode in the first direction. A positioning surface is formed on the surface, located at the interval, of the battery cell, and a positioning part is formed on the area, located outside the positioning surface, of the battery cell; the first positioning unit comprises a shifting rod assembly, the shifting rod assembly comprises a first shifting block and a second shifting block, and the first shifting block and the second shifting block are driven to be inserted into the interval and abut against the positioning faces of the two battery cells respectively; and the second positioning unit comprises a positioning piece, and the positioning piece is used for abutting against the positioning part after being driven. The battery cell positioning platform is simple in structure, can avoid redesign and part replacement of the battery cell positioning platform during model changing, can be compatible with various battery cell ranges of different sizes and models, ensures that a specified distance is kept between two battery cells, effectively improves product consistency, and accordingly avoids poor product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a core positioning device. Background Art

[0002] In the production process of new energy power lithium batteries, before the bare battery cells are transported to the internal processing fixtures of the equipment by a manipulator, they usually need to be first transported to a secondary positioning platform for the battery cells to perform precise positioning on the bare battery cells, that is, by the way of fixing and extruding the edges of the battery cells on multiple sides, so that the placement position of the bare battery cells and the distance between the battery cells are accurate, ensuring the assembly accuracy of the bare battery cells. In the existing structure of the secondary positioning platform for bare battery cells, before the manipulator clamps the bare battery cells and is about to place them on the secondary positioning platform, the horizontal reciprocating cylinder in the positioning platform retracts, pulling the back push block back, and the secondary positioning platform is in an open state. At this time, the battery cell handling gripper places the bare battery cells on the battery cell support body of the secondary positioning platform, the horizontal reciprocating cylinder extends, pushing the back push block forward, and the secondary positioning mechanism is in a closed state. The pushing of the battery cells by the push blocks on both sides and the middle stop piece plays a role in fixing and positioning, completing the positioning of the bare battery cells.

[0003] The deficiencies of the existing secondary positioning platform for bare battery cells are that it can only support the positioning of battery cells of a single blue print size, the positioning of the distance between two battery cells cannot be adjusted, flexible compatible positioning cannot be achieved, and the positioning of battery cells within a multi-size range cannot be compatible. In addition, limited by the cylinder stroke, the range of battery cell sizes that the mechanism can accommodate is small. When the equipment is changed to produce battery cells outside the blue print range, more parts need to be replaced, such as cylinders, side blocks, etc., and the flexibility of the mechanism is poor. When the size of the battery cells changes, it is necessary to re-design and manually replace parts, wasting labor and material costs. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the present utility model is to overcome the deficiencies in the prior art, provide a core positioning device, improve the positioning accuracy of the core, thereby improving the product consistency of the equipment, avoiding poor product quality, and the present utility model can automatically adjust the corresponding position according to the core size data, avoid damaging the core tabs, be compatible with different model sizes of cores, and improve the core positioning efficiency.

[0005] To solve the above technical problems, the present utility model provides a core positioning device, including,

[0006] A support body, the cores to be positioned are placed on the support body, wherein there are at least two of the cores, and the two cores are arranged at intervals along a first direction; the surfaces of the cores at the intervals form positioning surfaces, and positioning parts are formed in the areas of the cores outside the positioning surfaces;

[0007] The first positioning unit includes a lever assembly, the lever assembly includes a first dial block and a second dial block, and after being driven, the first dial block and the second dial block are inserted into the gap and respectively abut against the positioning surfaces of the two battery cells; wherein, the first dial block or / and the second dial block can move along the first direction;

[0008] The second positioning unit includes a positioning member, and the positioning member is used to abut against the positioning portion after being driven.

[0009] In an embodiment of the present invention, the first dial block has a first split body and a second split body, and the first split body and the second split body respectively abut against two side portions of the positioning surface along the second direction; the second direction is perpendicular to the first direction.

[0010] In an embodiment of the present invention, the extension length of the first split body or / and the second split body of the first dial block along the second direction is not greater than half of the extension length of the battery cell along the second direction.

[0011] In an embodiment of the present invention, the extension length of the first dial block along the second direction is not less than the extension length of the battery cell along the second direction.

[0012] In an embodiment of the present invention, the second dial block has a third split body and a fourth split body, and the third split body and the fourth split body respectively abut against two side portions of the positioning surface along the second direction, and the second direction is perpendicular to the first direction.

[0013] In an embodiment of the present invention, the extension length of the third split body or / and the fourth split body of the second dial block along the second direction is not greater than half of the extension length of the battery cell along the second direction.

[0014] In an embodiment of the present invention, the extension length of the second dial block along the second direction is not less than the extension length of the battery cell along the second direction.

[0015] In an embodiment of the present invention, it further includes a first support body, the first support body extends along a third direction, one end of the first support body along the third direction is connected to the first dial block, and the other end is connected to the power output end of the first driving component, so that there is a clearance for avoidance between the first dial block and the first driving component in the third direction;

[0016] Alternatively / and, it further includes a second support body which extends along a third direction. One end of the second support body along the third direction is connected to the second dial block, and the other end thereof is connected to the power output end of the first driving assembly, so that there is a clearance between the second dial block and the first driving assembly in the third direction.

[0017] In an embodiment of the present invention, the first driving assembly includes a first driving member and a cam transmission mechanism. The cam transmission mechanism is connected to the power output end of the first driving member, and the cam transmission mechanism transmits the power of the first driving member to the first dial block and the second dial block, so that the first dial block and the second dial block move along the first direction.

[0018] In an embodiment of the present invention, the positioning member includes a positioning stop block which is arranged in an "L" shape and abuts against the positioning surface.

[0019] The above technical solution of the present invention has the following advantages compared with the prior art:

[0020] A cell positioning device of the present invention is provided with a support body, a first positioning unit and a second positioning unit. Among them, the support body is used to support two cells to be positioned. The dial rod assembly of the first positioning unit can move freely and move to abut against the positioning surfaces of the two cells, and position the positions of the two cells along the first direction. The second positioning unit can abut against the positioning parts of the two cells. Thus, the first positioning unit and the second positioning unit cooperate with each other to accurately position the two cells in the first direction and the second direction.

[0021] The structure of the present invention is simple, which can avoid re-designing the cell positioning platform and replacing parts during model change, and can be compatible with a variety of different size models of cells, ensure that a specified distance is maintained between the two cells, effectively improve product consistency, and thus avoid poor product quality.

[0022] In addition, the dial rod assembly of the first positioning unit can move along the first direction and the second direction, so that the corresponding position can be adjusted according to the sizes of different cells, and the cell pole ears can be avoided from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to the specific embodiments of the present invention and in combination with the drawings, wherein:

[0024] Figure 1 is a schematic diagram of the overall structure of the preferred embodiment of the present invention.

[0025] Figure 2It is a partial structural schematic diagram of the first positioning unit of the preferred embodiment of the present utility model.

[0026] Figure 3 It is a partial structural schematic diagram of the first driving assembly and the lever assembly of the preferred embodiment of the present utility model.

[0027] Figure 4 It is a partial structural schematic diagram of the lever assembly of the preferred embodiment of the present utility model.

[0028] Figure 5 It is a partial structural top view of the battery cell and the positioning member of the preferred embodiment of the present utility model.

[0029] Explanation of the reference numerals in the drawings of the specification: 1. Support body; 10. Battery cell; 20. First dial block; 21. Second dial block; 22. First mounting substrate; 23. First driving member; 24. Second driving member; 250. Cam connecting plate; 251. First cam follower; 252. Second cam follower; 253. First cam connecting block; 254. Second cam connecting block; 255. First guide rail; 256. First slider; 257. Second slider; 30. Positioning bottom plate; 31. Positioning member; 32. Third driving member; 33. Second mounting substrate; 34. Fourth driving member; 35. Stopper connecting plate; 41. First support body; 42. Second support body. Detailed implementation manners

[0030] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the illustrated embodiments are not intended to limit the present utility model.

[0031] Embodiment 1

[0032] Refer to Figure 1 As shown, the present utility model discloses a battery cell positioning device, which includes a support body 1, and the support body 1 is used to carry the battery cell 10 to be positioned. During positioning, the battery cell 10 to be positioned is placed on the support body 1. Specifically, there are at least two battery cells 10, and the two battery cells 10 are arranged at intervals along the first direction. The surface of the battery cell 10 at the interval forms a positioning surface, and a positioning portion is formed in the area of the battery cell 10 outside the positioning surface.

[0033] The battery cell positioning device further includes a first positioning unit, the first positioning unit includes a lever assembly, the lever assembly includes a first dial block 20 and a second dial block 21, and after being driven, the first dial block 20 and the second dial block 21 are inserted into the interval and respectively abut against the positioning surfaces of the two battery cells 10.

[0034] Wherein, the first shifting block 20 or / and the second shifting block 21 can move along the first direction, so that after the battery cell 10 is placed on the support 1, the first shifting block 20 or / and the second shifting block 21 can move to abut against the positioning surface of the battery cell 10 to position the battery cell 10 along the first direction.

[0035] The battery cell positioning device further includes a second positioning unit, and the second positioning unit includes a positioning member 31 which is configured to be able to abut against the positioning portion after being driven. Thus, the first positioning unit cooperates with the second positioning unit to be able to position the positioning surface and the positioning portion of the battery cell 10, making the positioning of the battery cell 10 more accurate and enabling the battery cell 10 to maintain good stability during the positioning process.

[0036] It can be seen therefrom that a battery cell positioning device to be protected by the present utility model is provided with a support, a first positioning unit and a second positioning unit. Among them, the support is used to support two battery cells to be positioned. The lever assembly of the first positioning unit can move freely and move to abut against the positioning surfaces of the two battery cells to position the positions of the two battery cells along the first direction. The second positioning unit can abut against the positioning portions of the two battery cells. Thus, the first positioning unit and the second positioning unit cooperate with each other to be able to accurately position the two battery cells in the first direction and the second direction. The structure of the present utility model is simple, which can avoid re-designing the battery cell positioning platform and replacing parts during model change, and can be compatible with a range of battery cells of different sizes and models, ensuring a specified distance is maintained between the two battery cells, effectively improving product consistency, and thus avoiding poor product quality. In addition, the lever assembly of the first positioning unit can move along the first direction and the second direction, so that the corresponding position can be adjusted according to the size of the battery cell, and the battery cell electrode ear can be avoided from being damaged.

[0037] As a preferred embodiment, the first shifting block 20 has a first shifting block body and a second shifting block body, and the first shifting block body and the second shifting block body respectively abut against two side portions of the positioning surface along the second direction. Specifically, the first shifting block body and the second shifting block body are oppositely arranged.

[0038] It should be noted that the second direction is perpendicular to the first direction.

[0039] In terms of details, in order to avoid collision during the movement of the first shifting block body and the second shifting block body along the second direction, the extension length of the first shifting block body or / and the second shifting block body along the second direction is not greater than half of the extension length of the battery cell 10 along the second direction.

[0040] Accordingly, the second shifting block 21 has a third shifting block part and a fourth shifting block part. The third shifting block part and the fourth shifting block part respectively abut against two side parts of the positioning surface along a second direction, and the second direction is perpendicular to the first direction.

[0041] Meanwhile, in order to avoid collision during the movement of the third shifting block part and the fourth shifting block part along the second direction, the extension length of the third shifting block part or / and the fourth shifting block part along the second direction is not greater than half of the extension length of the battery cell 10 along the second direction.

[0042] According to Figures 2 to 4 As shown, as a preferred embodiment, the first driving assembly includes a first driving member 23 and a cam transmission mechanism. The cam transmission mechanism is connected to the power output end of the first driving member 23, and the cam transmission mechanism transmits the power of the first driving member to the first shifting block 20 and the second shifting block 21, so that the first shifting block 20 and the second shifting block 21 move along the first direction.

[0043] As a preferred embodiment, referring to Figure 5 As shown, the positioning member 31 includes a positioning stop block. The positioning stop block is arranged in an "L" shape and abuts against the positioning surface. The "L"-shaped positioning stop block can better fit the shape of the battery cell 10.

[0044] In terms of details, referring to Figure 2 、 Figure 3 and Figure 4 As shown, the first driving assembly further includes a first mounting substrate 22, a first driving member 23 and a second driving mechanism. The first mounting substrate 22 is arranged at the output end of the first driving member 23, and the output end of the first driving member 23 moves along the second direction; the second driving mechanism is assembled on the first mounting substrate 22, and the first shifting block 20 and the second shifting block 21 are arranged at the output end of the second driving mechanism. The first shifting block 20 and the second shifting block 21 move along the first direction under the drive of the second driving mechanism.

[0045] As a preferred embodiment, the second driving mechanism includes a second driving member 24 and a cam mechanism. The cam mechanism is arranged at the output end of the second driving member 24, and the cam mechanism is connected to the first shifting block 20 and the second shifting block 21. The cam mechanism drives the first shifting block 20 and the second shifting block 21 to move along the second direction under the drive of the second driving member 24.

[0046] Combined with Figure 2 and Figure 3Referring to a preferred embodiment, the cam mechanism includes a cam connecting plate 250, a first cam follower 251, a second cam follower 252, a first cam connecting block 253, a second cam connecting block 254, a first guide rail 255, a first slider 256, and a second slider 257. The cam connecting plate 250 is connected to the output end of the second driving member 24. The first cam follower 251 and the second cam follower 252 are movably connected to the cam connecting plate 250. The first cam follower 251 is connected to the first dial block 20 through the first cam connecting block 253. The second cam follower 252 is connected to the second dial block 21 through the second cam connecting block 254. The first guide rail 255 is disposed on the first mounting substrate 22 along the first direction. The first slider 256 and the second slider 257 are slidably connected to the first guide rail 255. The first dial block 20 is connected to the first slider 256. The second dial block 21 is connected to the second slider 257.

[0047] As a preferred embodiment, in combination with Figure 2 , Figure 3 and Figure 4 as shown, the second driving assembly includes a third driving member 32, a second mounting substrate 33, a fourth driving member 34, and a stopper connecting plate 35. The third driving member 32 is disposed on the positioning base plate 30. The second mounting substrate 33 is connected to the output end of the third driving member 32. The output end of the third driving member 32 moves along the first direction. The fourth driving member 34 is disposed on the second mounting substrate 33. The output end of the fourth driving member 34 moves along the second direction. The stopper connecting plate 35 is disposed on the output end of the fourth driving member 34. The positioning stopper is connected to the fourth driving member 34 through the stopper connecting plate 35.

[0048] Specifically, the first driving member 23 includes, but is not limited to, an electric slide table. The second driving member 24 includes, but is not limited to, a driving motor.

[0049] With such an arrangement, the above-mentioned multiple servo motor modules drive the corresponding mechanisms to push the cell positioning stopper to reciprocate, so as to achieve precise positioning of the cell 10. At the same time, the use of servo motors can also accurately control the positioning accuracy, and it can also be compatible with cells of different model sizes, solving and improving the problem that the traditional positioning mechanism using cylinders requires manual debugging repeatedly.

[0050] Embodiment 2

[0051] Different from the first embodiment, in some other embodiments, only one first shifting block 20 is provided, and it extends along the second direction. The extension length of the first shifting block 20 along the second direction is not less than the extension length of the battery cell 10 along the second direction.

[0052] Correspondingly, only one second shifting block 21 is provided, and it extends along the second direction. The extension length of the second shifting block 21 along the second direction is not less than the extension length of the battery cell 10 along the second direction.

[0053] As a preferred embodiment, referring to Figure 4 it can be seen that the shifting rod assembly further includes a first support body 41. The first support body 41 extends along the third direction. One end of the first support body 41 along the third direction is connected to the first shifting block 20, and the other end is connected to the power output end of the first driving assembly, so that there is a clearance between the first shifting block 20 and the first driving assembly in the third direction;

[0054] Or / and, the shifting rod assembly further includes a second support body 42. The second support body 42 extends along the third direction. One end of the second support body 42 along the third direction is connected to the second shifting block 21, and the other end is connected to the power output end of the first driving assembly, so that there is a clearance between the second shifting block 21 and the first driving assembly in the third direction.

[0055] With such a setting, the above-mentioned clearance can provide a relatively sufficient movement range for the first driving assembly, and can effectively avoid movement interference between the first driving assembly and the support body 1.

[0056] It should be noted that the third direction is the height direction.

[0057] As a preferred embodiment, in order to protect the edge of the battery cell 10 to be positioned and avoid scratching or wearing the battery cell 10 during the displacement of the shifting rod assembly, a chamfer is provided on the edge of the first shifting block 20 in contact with the battery cell 10, or / and a chamfer is provided on the edge of the second shifting block 21 in contact with the battery cell 10.

[0058] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set" and "connect" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0060] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0061] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A battery cell positioning device, characterized in that: include, A support body (1), wherein the battery cells (10) to be positioned are placed on the support body (1), wherein the battery cells (10) have at least two and the two battery cells (10) are arranged at intervals along a first direction; a surface of the battery cell (10) located at the interval forms a positioning surface, and a region of the battery cell (10) located outside the positioning surface forms a positioning portion; A first positioning unit, comprising a lever assembly, the lever assembly comprising a first shift block (20) and a second shift block (21), the first shift block (20) and the second shift block (21) being driven to be inserted into the gap and respectively abut against the positioning surfaces of the two battery cells (10); wherein the first shift block (20) and / or the second shift block (21) are capable of moving along the first direction; The second positioning unit comprises a positioning member (31), wherein the positioning member (31) is used to abut against the positioning portion after being driven.

2. A battery cell positioning device according to claim 1, characterized in that: The first shift block (20) comprises a first shift block body and a second shift block body, the first shift block body and the second shift block body respectively abutting against two edges of the positioning surface along the second direction; The second direction is perpendicular to the first direction.

3. A battery cell positioning device according to claim 2, characterized in that: The extension length of the first shift block split body and / or the second shift block split body along the second direction is not greater than half the extension length of the battery cell (10) along the second direction.

4. A battery cell positioning device according to claim 2, characterized in that: The extension length of the first shifting block (20) along the second direction is not less than the extension length of the battery cell (10) along the second direction.

5. A battery cell positioning device according to claim 1 or 2, characterized in that: The second shift block (21) comprises a third shift block part and a fourth shift block part, the third shift block part and the fourth shift block part respectively abut against two edges of the positioning surface along a second direction, the second direction being perpendicular to the first direction.

6. A battery cell positioning device according to claim 5, characterized in that: The extension length of the third shift block split body and / or the fourth shift block split body along the second direction is not greater than half the extension length of the battery cell (10) along the second direction.

7. The battery cell positioning device according to claim 5, characterized in that: The extension length of the second shifting block (21) along the second direction is not less than the extension length of the battery cell (10) along the second direction.

8. The battery cell positioning device according to claim 1, characterized in that: It also comprises a first support body (41), the first support body (41) extending along a third direction, one end of the first support body (41) along the third direction being connected to the first shift block (20), and the other end of the first support body (41) being connected to a power output end of the first drive assembly, so that the first shift block (20) and the first drive assembly have an avoidance gap in the third direction; Or / and, further comprising a second support body (42), the second support body (42) extending along a third direction, one end of the second support body (42) along the third direction being connected to the second shift block (21), and the other end of the second support body (42) being connected to a power output end of the first drive assembly, so that the second shift block (21) and the first drive assembly have an avoidance gap in the third direction.

9. A battery cell positioning device according to claim 8, characterized in that: The first driving assembly comprises a first driving member (23) and a cam transmission mechanism, wherein the cam transmission mechanism is connected to a power output end of the first driving member (23), and the cam transmission mechanism transmits the power of the first driving member to the first shifting block (20) and the second shifting block (21), so that the first shifting block (20) and the second shifting block (21) move along the first direction.

10. The battery cell positioning device according to claim 1, characterized in that: The positioning member (31) comprises a positioning stopper, which is arranged in an "L" shape and abuts against the positioning surface.

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