Power battery cell stacking and positioning tool

Abstract

A power battery cell stacking and positioning tool comprises horizontal positioning mechanisms and a base, the number of the horizontal positioning mechanisms is at least two, the two horizontal positioning mechanisms are oppositely arranged, each horizontal positioning mechanism comprises a first power source, a first base plate and a comb-shaped positioning structure, each comb-shaped positioning structure comprises a connecting plate and a plurality of partition plates, and the first power source is connected with the first base plate. The connecting plate is connected with the base plate, the partition plates are distributed on the connecting plate in the first direction, the first power source is connected with the first base plate, and the first base plate drives the comb-shaped positioning structure to be movably arranged on the base in the second direction under driving of the first power source. The first direction is a battery cell stacking direction, and the second direction is a direction perpendicular to the battery cell stacking direction on a plane. According to the power battery cell stacking and positioning tool, the battery cells can be well positioned in the battery cell stacking process, and subsequent manufacturing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery manufacturing, in particular to a power battery cell stacking and positioning tooling. Background Art

[0002] The power battery is one of the core components of new energy vehicles. Whether using the CTM (Cell To Module) or CTP (Cell To Pack) structure, the power battery is composed of single cells. The cell stacking station is one of the key stations in the production of automotive power batteries. The consistency of the cell gap and the height difference of the pole columns have a great impact on the subsequent battery performance.

[0003] In the prior art, the automation level of the production line of new energy vehicle power battery packs is low. The cells are generally stacked manually and visually inspected by humans. It is impossible to achieve precise positioning of the pole columns, and the cell spacing is inconsistent, resulting in installation deviation during subsequent interconnection of power batteries, unqualified welding quality, and a high defective product productivity of the module, delaying production and having low efficiency. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a power battery cell stacking and positioning tooling, which can better position the cells during the cell stacking process and is beneficial to subsequent various manufacturing processes.

[0005] The utility model provides a power battery cell stacking and positioning tooling, including a horizontal positioning mechanism and a base. There are at least two horizontal positioning mechanisms, and the two horizontal positioning mechanisms are arranged oppositely. The horizontal positioning mechanism includes a first power source, a first substrate, and a comb-shaped positioning structure. The comb-shaped positioning structure includes a connecting plate and a plurality of partition plates. The connecting plate is connected to the substrate, and the plurality of partition plates are arranged on the connecting plate in the first direction. The first power source is connected to the first substrate. Driven by the first power source, the first substrate drives the comb-shaped positioning structure to be movably arranged on the base in the second direction. The first direction is the cell stacking direction, and the second direction is the direction perpendicular to the cell stacking direction on the plane.

[0006] Furthermore, the horizontal positioning mechanism further includes a push rod and a floating joint. The first power source is connected to the push rod, and the push rod is connected to the first substrate through the floating joint.

[0007] Furthermore, the connecting plate is detachably arranged on the first substrate.

[0008] Further, the power battery cell stacking and positioning tooling further includes a Y-direction positioning mechanism and a cell bearing plate. The cell bearing plate is used to bear cells and move together with the positioned cells. The Y-direction positioning mechanism includes a support column, a pressing plate, and a pressing structure. The support column is disposed on the cell bearing plate, the pressing structure is disposed on the support column, the pressing structure is connected to the pressing plate, and is configured to drive the pressing plate to move downward by applying pressure to the pressing plate.

[0009] Further, the pressing structure includes a screwing bolt. A through hole with an internal thread is formed on the support column. The screwing bolt passes through the through hole and extends downward to form a free end at one end away from the through hole. The pressing plate is connected to the free end of the screwing bolt.

[0010] Further, the Y-direction positioning mechanism further includes a pre-tightening spring, a pre-tightening plate, a second power source, and a lifting plate. The pre-tightening plate is separated from the pressing plate and is located below the pressing plate. The pre-tightening spring is connected between the pre-tightening plate and the support column. The second power source is disposed on the base. The lifting plate is connected to the second power source and moves up and down under the drive of the second power source. When the lifting plate moves upward, the lifting plate is connected to the pre-tightening plate and drives the pre-tightening plate to move upward to compress the pre-tightening spring. When the lifting plate moves downward, the lifting plate is separated from the pre-tightening plate, and the pre-tightening spring drives the pre-tightening plate to move downward.

[0011] Further, a connection hole is provided on the pre-tightening plate, and a connection head corresponding to the connection hole is provided on the lifting plate. When the second power source controls the lifting plate to rise, the connection head extends into the connection hole.

[0012] Further, the power battery cell stacking and positioning tooling includes a second power source, a lifting plate, a third power source, and a second substrate. The second substrate is disposed on the base. The third power source is connected to the second substrate and can drive the second substrate to move closer to and away from the cell bearing plate. The second power source is disposed on the second substrate. The second power source is connected to the lifting plate. The second power source drives the lifting plate to move up and down. When the second power source drives the lifting plate to move upward, the lifting plate is connected to the Y-direction positioning mechanism, and the support column is movably disposed on the cell bearing plate.

[0013] Further, there are two bases, and each of the horizontal positioning mechanisms is arranged on one of the bases. The two bases are arranged opposite to each other, and a space for placing a battery cell carrier plate for the battery cells is left between the two bases. The battery cell stacking tooling for power batteries further includes a transfer cart for transferring the battery cell carrier plate, and the transfer cart transfers the battery cell carrier plate.

[0014] Further, a locking structure for locking the transfer cart is also arranged on the base.

[0015] In summary, in the utility model, through the horizontal positioning mechanism, especially the arrangement of the comb-shaped positioning structure, and the cooperation of related components, it is possible to better position a plurality of stacked battery cells on the horizontal plane; through the arrangement of the Y-direction positioning mechanism, it is possible to better position a plurality of stacked battery cells in the height direction of the battery cells; by arranging the Y-direction positioning mechanism to be movable on the battery cell carrier plate and adding a driving mechanism adapted to it, it is possible to prevent the Y-direction positioning mechanism from interfering with the placement of the battery cells during the positioning process.

[0016] The above description is only an overview of the technical solution of the utility model. In order to be able to understand the technical means of the utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the drawings, details are described as follows. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 Shown is an axonometric structural schematic diagram of the battery cell stacking and positioning tooling for power batteries provided by an embodiment of the present utility model.

[0019] Figure 2 Shown as Figure 1 the front view structural schematic diagram of the battery cell stacking and positioning tooling for power batteries in

[0020] Figure 3 Shown Figure 2 the front view structural schematic diagram of the battery cell stacking and positioning tooling for power batteries in

[0021] Figure 4 Shown is an axonometric structural schematic diagram of the horizontal positioning mechanism and the base.

[0022] Figure 5 Shown is an isometric structural schematic diagram of the horizontal positioning mechanism.

[0023] Figure 6 Shown is a side view of the horizontal positioning mechanism.

[0024] Figure 7 Shown is an isometric structural schematic diagram of the transfer cart and the Y-direction positioning mechanism.

[0025] Figure 8 Shown is an isometric structural schematic diagram of the Y-direction positioning mechanism from another perspective.

[0026] Figure 9 Shown is a schematic diagram of the cooperation relationship between the indenter translation device and the Y-direction positioning mechanism.

[0027] Reference numerals: 10: horizontal positioning mechanism, 11: first power source, 12: first substrate, 121: first chute, 13: comb-shaped positioning structure, 131: connecting plate, 132: partition, 14: push rod, 15: floating joint, 16: first sensor, 17: first induction block, 20: base, 21: first slide rail, 22: second slide rail, 23: locking structure, 24: lifting device, 31: battery cell carrier plate, 311: third slide rail, 32: transfer cart, 40: Y-direction positioning mechanism, 41: support column, 411: third chute, 42: pressing plate, 43: pressing structure, 44: support plate, 441: through hole, 45: pre-tightening spring, 46: pre-tightening plate, 461: connection hole, 471: second power source, 472: lifting plate, 473: connection head, 481: third power source, 482: third substrate, 483: second chute. Detailed implementation manners

[0028] Next, specific embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is habitually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0032] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the elements listed, it may also include other elements not specifically listed.

[0033] The present utility model provides a power battery cell stacking positioning tooling, which can better position the cells during the cell stacking process and is beneficial to subsequent manufacturing processes.

[0034] Figure 1 Shown is an axonometric structural schematic diagram of the power battery cell stacking positioning tooling provided by an embodiment of the present utility model. Figure 2 Shown is Figure 1 the front view structural schematic diagram of the power battery cell stacking positioning tooling in Figure 3 Shown Figure 2 the front view structural schematic diagram of the power battery cell stacking positioning tooling in Figure 4 after removing the transfer trolley and the Y-direction positioning mechanism. Shown is an axonometric structural schematic diagram of the horizontal positioning mechanism and the base. As Figures 1 to 4 shown, the power battery cell stacking tooling provided by an embodiment of the present utility model includes a horizontal positioning mechanism 10 and a base 20. There are at least two horizontal positioning mechanisms 10, and the two horizontal positioning mechanisms 10 are arranged oppositely. The horizontal positioning mechanism 10 includes a first power source 11, a first substrate 12, and a comb-shaped positioning structure 13. The comb-shaped positioning structure 13 includes a connecting plate 131 and a plurality of partition plates 132. The connecting plate 131 is connected to the first substrate 12, and the plurality of partition plates 132 are arranged on the connecting plate 131 along the first direction, that is, the cell stacking direction (such as Figure 2 the direction perpendicular to the paper surface in Figure 2 ). The first power source 11 is connected to the first substrate 12. Under the action of the first power source 11, the first substrate 12 drives the comb-shaped positioning structure 13 to be movably arranged on the base 20 in the second direction, that is, in the horizontal plane along the direction perpendicular to the cell stacking direction (such as

[0035] When positioning the battery cells in the horizontal direction, first, according to the set spacing between the battery cells, select the thickness of the separator 132, and set the spacing of the separator 132 on the connecting plate 131 according to the thickness of the battery cells. Then, place multiple battery cells between the two horizontal positioning mechanisms 10 through a manipulator, preferably on the battery cell carrier plate 31 that has been pre-transported between the two horizontal positioning mechanisms 10. Finally, start the first power source 11 on the two horizontal positioning mechanisms 10 to push the comb-shaped positioning structure 13 to clamp the battery cells, so as to complete the positioning of the stacked battery cells in the horizontal direction. During this process, each battery cell will enter the space between the two separators 132, and adjacent battery cells will be separated by a separator 132, which completes the positioning of the gaps between the battery cells in the stacking direction of the battery cells. At the same time, the two corresponding horizontal positioning mechanisms 10 will clamp the battery cells from both sides of the battery cells to complete the positioning of the width direction of the battery cells. After completing the positioning of the stacked battery cells, the battery cells can move to the next station together with the battery cell carrier plate 31.

[0036] In summary, in this embodiment, through the setting of the comb-shaped positioning structure 13 and the cooperation of related components, it is possible to better position multiple stacked battery cells on the horizontal plane.

[0037] Figure 5 The figure shows the isometric structure diagram of the horizontal positioning mechanism. Figure 6 The figure shows the side view of the horizontal positioning mechanism. Please continue to refer to Figure 1 、 Figures 4 to 6 In this embodiment, a first slide rail 21 is provided on the base 20, and a first chute 121 is provided on the first substrate 12. The first chute 121 is slidably disposed within the first slide rail 21 so that the first substrate 12 can drive the comb-shaped positioning structure 13 to move on the base 20.

[0038] The first power source 11 can be a cylinder. The first power source 11 is fixed on the base 20 and is connected to the first substrate 12 through a push rod 14.

[0039] To ensure the stable movement of the horizontal positioning mechanism 10, the end of the push rod 14 away from the first power source 11 is connected to the first substrate 12 through a floating joint 15 to accommodate the reaction force from the battery cells and the offset generated when the first power source 11 pushes the first substrate 12 during the positioning of the battery cells.

[0040] Between the base 20 and the first substrate 12, a first sensor 16 and a first induction block 17 are also provided to facilitate the control of the movement of the horizontal positioning mechanism 10.

[0041] Further, the connecting plate 131 is detachably disposed on the first substrate 12. In the above-described manner, the comb-shaped positioning structure 13 can be replaced to adapt to different specifications of battery cells.

[0042] Further, the side surface of the connecting plate 131 on the side connected to the partition plate 132 can be a flat surface to better complete the positioning in the width direction of the battery cell.

[0043] Figure 7 The above is an axonometric structure schematic diagram of the transfer cart and the Y-direction positioning mechanism. Figure 8 The following is an axonometric structure schematic diagram of another perspective of the Y-direction positioning mechanism. Figure 9 The following is a schematic diagram of the cooperation relationship between the indenter translation device and the Y-direction positioning mechanism. As Figures 7 to 9 shown, the power battery cell stacking positioning tooling provided by the present invention further includes a Y-direction positioning mechanism 40 for performing Y-direction positioning (i.e., Figure 2 the up and down direction in the plane of the paper, or the height direction of the battery cell) on the stacked battery cells. The Y-direction positioning mechanism 40 can be directly disposed on the battery cell carrier plate 31 that moves together with the positioned battery cells. The Y-direction positioning mechanism 40 includes a support column 41, a pressing plate 42, and a pressing structure 43. The support column 41 is disposed on the battery cell carrier plate 31, the pressing structure 43 is disposed on the support column 41, the pressing structure 43 is connected to the pressing plate 42, and is configured to drive the pressing plate 42 to move downward by applying pressure to the pressing plate 42.

[0044] During use, a plurality of arranged battery cells can be placed on the battery cell carrier plate 31 and located between the battery cell carrier plate 31 and the pressing plate 42. Then, the pressing structure 43 applies pressure to the pressing plate 42 and drives the pressing plate 42 to move downward to perform positioning in the height direction on the stacked battery cells.

[0045] In this embodiment, the pressing structure 43 includes a screwing bolt. A through hole 441 with an internal thread is formed on the support column 41. The screwing bolt passes through the through hole 441 and extends downward to form a free end at the end far from the through hole 441. The pressing plate 42 is connected to the free end of the screwing bolt.

[0046] More specifically, a support plate 44 is further disposed on the support column 41. The plane where the plate surface of the support plate 44 is located is parallel to the plane where the battery cell carrier plate 31 is located. The above-mentioned through hole 441 is formed on the support plate 44.

[0047] Please continue to refer to Figure 1 、 Figure 4 、 Figures 7 to 9, the Y-direction positioning mechanism 40 can also pre-tighten the spring 45, the pre-tightening plate 46, the second power source 471 and the lifting plate 472. The pre-tightening plate 46 is separated from the pressing plate 42 and is arranged below the pressing plate 42. The pre-tightening spring 45 is connected between the pre-tightening plate 46 and the support column 41, preferably between the support plate 44 on the support column 41. The second power source 471 is arranged on the base 20. The lifting plate 472 is connected to the second power source 471 and moves up and down under the drive of the second power source 471. When the second power source 471 drives the lifting plate 472 to move upward, the lifting plate 472 is connected to the pre-tightening plate 46, and then drives the pre-tightening plate 46 to move upward to lift the pre-tightening plate 46 and compress the pre-tightening spring 45. When the lifting plate 472 moves downward, the lifting plate 472 is separated from the pre-tightening plate 46, and the pre-tightening spring 45 drives the pre-tightening plate 46 to move downward.

[0048] When no battery cell is placed on the battery cell carrier plate 31, the pre-tightening plate 46 can be lifted by the second power source 471 first to compress the pre-tightening spring 45; when the battery cell is placed on the battery cell carrier plate 31, the second power source 471 controls the lifting plate 472 to cancel the support for the pre-tightening plate 46, and the pre-tightening plate 46 moves downward under the drive of the pre-tightening spring 45 to pre-tighten the battery cell; then the bolt is screwed to drive the pressing plate 42 to move downward, and the pressing plate 42 applies pressure to the battery cell through the pre-tightening plate 46, so as to complete the positioning of the battery cell in the Y direction.

[0049] Furthermore, a connection hole 461 is arranged on the pre-tightening plate 46, and a connection head 473 corresponding to the connection hole 461 is arranged on the lifting plate 472. When the second power source 471 controls the lifting plate 472 to rise, the connection head 473 extends into the connection hole 461 to ensure the firm connection between the lifting plate 472 and the pre-tightening plate 46.

[0050] Please continue to refer to Figures 1 to 4 , Figure 8 and Figure 9 . To facilitate the placement of the battery cell on the battery cell carrier plate 31 and avoid the structures such as the pressing plate 42 and the pre-tightening plate 46 from obstructing the manipulator during the placement of the battery cell, the positioning tooling further includes a third power source 481 and a second substrate 482. The above-mentioned first power source 11 can be arranged on the second substrate 482, the third power source 481 is arranged on the base 20, the second substrate 482 is connected to the third power source 481 and can move closer to and away from the battery cell carrier plate 31 under the drive of the third power source 481. The support column 41 is movably arranged on the battery cell carrier plate 31.

[0051] More specifically, a second slide rail 22 is provided on the base 20, and a second chute 483 is provided on the second substrate 482. The second chute 483 is disposed on the second slide rail 22 so that the second base 20 is movably disposed on the base 20. A third slide rail 311 is provided on the battery cell carrier plate 31, and a third chute 411 is provided on the support column 41. The third chute 411 is disposed on the third slide rail 311 so that the support column 41 is movably disposed on the battery cell carrier plate 31.

[0052] During use, the lifting plate 472 can be first controlled by the second power source 471 to rise, so that the connecting head 473 extends into the connecting hole 461, that is, the lifting plate 472 is combined with the pre-tightening plate 26 and the pre-tightening plate 26 is lifted; then the second power source 471 and the lifting plate 472 are driven by the third power source 481 to move to both sides of the battery cell carrier plate 31, and then the Y-direction positioning mechanism 40 is moved to both sides of the battery cell carrier plate 31 to leave a battery cell placement space in the middle of the battery cell support plate 44; after the battery cell is placed, the third power source 481 drives the second power source 471 and the lifting plate 472 to return to the middle of the battery cell carrier plate 31 to move the support plate 44 and the pre-tightening plate 26 back above the battery cell, and then start to position the battery cell in the Y direction.

[0053] It can be understood that in this embodiment, the movement of the Y-direction positioning mechanism 40 on the battery cell carrier plate 31 actually borrows the connection structure on the pre-tightening plate 26 and the lifting plate 472 to complete the driving of the third power source 481 on the Y-direction positioning mechanism 40. In other embodiments, the related structures such as the pre-pressing plate 46 and the pre-tightening spring 45 may not be provided, and only the lifting action of the second power source 471 and the lifting plate 472 is used to complete the connection and disconnection of the power between the third power source 481 and the Y-direction positioning mechanism 40.

[0054] Please continue to refer to Figures 1 to 3 , in this embodiment, opposite to the horizontal positioning mechanism 10, there can also be two bases 20. Each horizontal positioning mechanism 10 is disposed on one base 20. The two bases 20 are disposed opposite to each other, and a space for the transfer trolley 32 to enter is left between the two bases 20. The transfer trolley 32 directly drives the battery cell carrier plate 31 and the Y-direction positioning mechanism 40 to move. After the battery cell is positioned in all directions, the transfer trolley 32 directly drives the battery cell carrier plate 31 and the Y-direction positioning mechanism 40 to move to the next station.

[0055] In other words, in this power battery cell stacking and positioning tooling, the horizontal positioning mechanism 10 can be fixed and public, while the battery cell carrier plate 31 and the Y-direction positioning mechanism 40 can flow with the production rhythm and there are multiple.

[0056] To facilitate the docking of the transfer trolley 32, a locking structure 23 for locking the transfer trolley 32 is also provided on the base 20 to lock the transfer trolley 32 when it docks between only two bases 20, facilitating subsequent positioning.

[0057] Please continue to refer to Figure 2 , a lifting device 24 is also provided on the base. When the transfer trolley 32 transports the battery cell carrier plate 31 between two bases 20, the lifting device 24 lifts the battery cell carrier plate to facilitate subsequent positioning of the battery cells.

[0058] In summary, in this embodiment, through the horizontal positioning mechanism 10, especially the setting of the comb-shaped positioning structure 13, and the cooperation of related components, multiple stacked battery cells can be better positioned on the horizontal plane; through the setting of the Y-direction positioning mechanism 40, multiple stacked battery cells can be better positioned in the height direction of the battery cells; by setting the Y-direction positioning mechanism 40 to be movable on the battery cell carrier plate 31 and adding a driving mechanism adapted to it, interference with the placement of the battery cells during the positioning process by the Y-direction positioning mechanism 40 can be prevented.

[0059] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments within the scope of the technical solution of the present invention without departing from the technical solution of the present invention. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A positioning tool for stacking power battery cells, characterized in that: It includes a horizontal positioning mechanism and a base. There are at least two horizontal positioning mechanisms, and the two horizontal positioning mechanisms are arranged oppositely. The horizontal positioning mechanism includes a first power source, a first substrate, and a comb-shaped positioning structure. The comb-shaped positioning structure includes a connecting plate and a plurality of partition plates. The connecting plate is connected to the substrate, and the plurality of partition plates are arranged on the connecting plate in a first direction. The first power source is connected to the first substrate. Driven by the first power source, the first substrate drives the comb-shaped positioning structure to be movably arranged on the base in a second direction. The first direction is the battery cell stacking direction, and the second direction is the direction perpendicular to the battery cell stacking direction on the plane.

2. The power battery cell stacking and positioning tooling according to claim 1, wherein: The horizontal positioning mechanism further includes a push rod and a floating joint. The first power source is connected to the push rod, and the push rod is connected to the first substrate through the floating joint.

3. The power battery cell stacking and positioning tooling according to claim 1, characterized in that: The connecting plate is detachably arranged on the first substrate.

4. The power battery cell stacking and positioning tooling according to claim 1, wherein: The power battery cell stacking positioning tooling further includes a Y-direction positioning mechanism and a battery cell bearing plate. The battery cell bearing plate is used to bear the battery cells and move together with the positioned battery cells. The Y-direction positioning mechanism includes a support column, a pressing plate, and a pressing structure. The support column is arranged on the battery cell bearing plate, the pressing structure is arranged on the support column, the pressing structure is connected to the pressing plate, and is configured to drive the pressing plate to move downward by applying pressure to the pressing plate.

5. The battery cell stacking and positioning tooling according to claim 4, wherein: The pressing structure includes a screwing bolt. A through hole with an internal thread is formed on the support column. The screwing bolt extends downward through the through hole to form a free end at one end away from the through hole. The pressing plate is connected to the free end of the screwing bolt.

6. The power battery cell stacking and positioning tooling according to claim 4, wherein: The Y-direction positioning mechanism further includes a pre-tightening spring, a pre-tightening plate, a second power source, and a lifting plate. The pre-tightening plate is separated from the pressing plate and is located below the pressing plate. The pre-tightening spring is connected between the pre-tightening plate and the support column. The second power source is arranged on the base. The lifting plate is connected to the second power source and moves up and down driven by the second power source. When the lifting plate moves upward, the lifting plate is connected to the pre-tightening plate and drives the pre-tightening plate to move upward to compress the pre-tightening spring. When the lifting plate moves downward, the lifting plate is separated from the pre-tightening plate, and the pre-tightening spring drives the pre-tightening plate to move downward.

7. The power battery cell stacking and positioning tooling according to claim 6, wherein: A connection hole is provided on the pre-tightening plate, and a connection head corresponding to the connection hole is provided on the lifting plate. When the second power source controls the lifting plate to rise, the connection head extends into the connection hole.

8. The power battery cell stacking and positioning tooling according to claim 4, wherein: The power battery cell stacking and positioning tooling includes a second power source, a lifting plate, a third power source and a second substrate. The second substrate is arranged on the base. The third power source is connected to the second substrate and can drive the second substrate to move closer to and away from the cell carrying plate. The second power source is arranged on the second substrate. The second power source is connected to the lifting plate and drives the lifting plate to move up and down. When the second power source drives the lifting plate to move upward, the lifting plate is connected to the Y-direction positioning mechanism, and the support column is movably arranged on the cell carrying plate.

9. The power battery cell stacking and positioning tooling according to claim 8, characterized in that: There are two bases. Each of the horizontal positioning mechanisms is arranged on one of the bases. The two bases are arranged opposite to each other, and a space for placing the cell carrying plate for the cells is left between the two bases. The power battery cell stacking tooling further includes a transfer cart for transferring the cell carrying plate, and the transfer cart transfers the cell carrying plate.

10. The power battery cell stacking and positioning tooling according to claim 9, wherein: A locking structure for locking the transfer cart is further arranged on the base.

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