Battery cell overturning jig

Abstract

The invention relates to a battery cell overturning jig, which comprises a mounting seat, the battery cell clamping device is arranged on the mounting seat, the battery cell clamping device comprises an overturning bottom plate and a battery cell clamping mechanism arranged on the overturning bottom plate, the overturning bottom plate is used for bearing a battery cell, and the battery cell clamping mechanism is used for clamping the battery cell; the top cover positioning device comprises a top cover clamping mechanism and a top cover driving mechanism, the top cover clamping mechanism is used for clamping the top cover, and the top cover driving mechanism is used for driving the top cover clamping mechanism to move in the first direction, so that the top cover is close to or far away from the to-be-welded part of the battery cell; and the turnover device is used for driving the battery cell clamping device and the top cover positioning device to turn over. The battery cell overturning jig provided by the invention can overturn the battery cell, so that the welding of tabs on two sides of the battery cell is realized.

Description

Technical Field

[0001] The present application relates to a welding jig technology for battery cell tabs, and in particular to a battery cell flipping jig. Background Art

[0002] In the process of lithium battery production, the battery cell and the top cover need to be welded together. When welding the battery cell and the top cover, it is necessary to ensure that the relative position of the top cover and the battery cell remains unchanged to ensure the welding quality between the battery cell and the top cover.

[0003] In the related art, the welding of the battery cell and the top cover adopts a semi-automatic mode. When the battery cell and the top cover need to be welded, one side of the battery cell is firstly turned toward the welding mechanism for welding. After the welding step on one side is completed, the production process needs to be suspended to manually flip the battery cell so that the other side of the battery cell faces the welding mechanism, so as to weld the other side of the battery cell and the other side of the top cover. The manual operation has uncertainties, such as the accuracy of the flipping angle, the control of the force, etc., which may cause the relative position between the battery cell and the top cover to deviate, thereby affecting the subsequent welding quality between the battery cell and the top cover. Summary of the invention

[0004] The embodiment of the present application discloses a battery cell flipping jig, which can solve the problem that the battery cell cannot be automatically flipped during welding of the existing battery cell.

[0005] An embodiment of the present application provides a battery cell flipping jig, comprising: a mounting seat; a battery cell clamping device, which is arranged on the mounting seat, and the battery cell clamping device comprises a flipping base plate and a battery cell clamping mechanism arranged on the flipping base plate, the flipping base plate is used to carry the battery cell, and the battery cell clamping mechanism is used to clamp the battery cell; a top cover positioning device, the top cover positioning device comprises a top cover clamping mechanism and a top cover driving mechanism, the top cover clamping mechanism is used to clamp the top cover, and the top cover driving mechanism is used to drive the top cover clamping mechanism to move in a first direction so that the top cover is close to or away from the part to be welded of the battery cell; a flipping device, the flipping device is used to drive the battery cell clamping device and the top cover positioning device to rotate.

[0006] As an optional embodiment, the mounting base includes: a mounting base; two mounting vertical plates, the two mounting vertical plates are respectively connected to the two sides of the mounting base along the first direction, the battery cell clamping device is located between the two mounting vertical plates, and the flipping device is arranged on the mounting vertical plates.

[0007] As an optional embodiment, the flipping device is arranged on the mounting seat, and the flipping device is connected to the battery cell clamping device. The flipping device includes: a flipping mechanism, which is connected to the flipping base plate, and the flipping mechanism can drive the flipping base plate to flip in a controllable manner; and a locking mechanism, which can lock and unlock the flipping mechanism.

[0008] As an optional embodiment, the flipping device also includes: in some embodiments, at least two first position limit buffer mechanisms, the first position limit buffer mechanism is arranged on the mounting seat, the first position limit buffer mechanism extends along the second direction, at least two first position limit buffer mechanisms are arranged at intervals along the third direction and have a height difference in the second direction, the second direction, the third direction and the first direction all intersect; each first position limit buffer mechanism is located on the flipping path of the flipping bottom plate, at least one first position limit buffer mechanism is used to abut against one side of the flipping bottom plate, and at least one first position limit buffer mechanism is used to abut against the other side of the flipping bottom plate.

[0009] As an optional embodiment, the first limit buffer mechanism includes: a buffer member, which is arranged on the mounting seat and extends along the second direction; a limit member, which is arranged on the mounting seat and extends along the second direction, and the free end of the limit member is lower than the free end of the buffer member.

[0010] As an optional embodiment, the flipping mechanism includes: a first driving component, which is arranged on a mounting seat; a rotating shaft, which passes through the mounting seat and is connected to the flipping base plate; a first transmission component, which is connected to the first driving component and the rotating shaft, and the rotating shaft rotates under the drive of the first transmission component to drive the flipping base plate to flip.

[0011] As an optional embodiment, the first transmission component includes: a rack, which is movably arranged on a mounting seat, and the rack can move along a third direction under the drive of the first driving component, and the third direction intersects with the first direction; a gear, which is connected to the rotating shaft, and the gear is rotatably arranged on the mounting seat, and the gear can mesh with the rack, and the gear can rotate following the movement of the rack.

[0012] As an optional embodiment, the first driving component includes: a first guide rail, which is arranged on the mounting seat, and the first guide rail extends along a third direction; a first slider, which is movably arranged on the first guide rail, and the first slider can slide along the first guide rail in a controllable manner, and the first slider is connected to the rack.

[0013] As an optional embodiment, the flipping device also includes: an adapter plate, which is arranged on the first slider, and the adapter plate can drive the first slider to move along the third direction, and the adapter plate includes a limiting portion; at least two second limiting buffer mechanisms, and at least two second limiting buffer mechanisms are arranged at intervals along the third direction, and the two second limiting buffer mechanisms are respectively located on both sides of the limiting portion.

[0014] As an optional embodiment, the locking mechanism includes: a locking member, which is arranged on the adapter plate and can loosen or clamp the first guide rail; an unlocking joint, which is arranged on the mounting seat and can drive the locking member to loosen the first guide rail.

[0015] As an optional embodiment, the battery cell clamping mechanism also includes: a rotating clamping cylinder, which is arranged on the flip base plate; a clamping piece, which is arranged on the rotating clamping cylinder and can rotate and move closer to and away from the flip base plate under the drive of the rotating clamping cylinder to clamp or release the battery cell.

[0016] As an optional embodiment, the top cover positioning device is arranged on the battery cell clamping device, and the top cover positioning device includes: a mounting bracket, the mounting bracket includes a mounting seat and a supporting vertical plate movable relative to the mounting seat, the mounting seat is arranged on the flip base plate, the top cover clamping mechanism is arranged on the supporting vertical plate, and the top cover driving mechanism is connected to the supporting vertical plate; the supporting vertical plate has a first position and a second position spaced along a first direction relative to the mounting seat, and the top cover driving mechanism can drive the supporting vertical plate to reciprocate between the first position and the second position; when the supporting vertical plate is in the first position, the top cover is close to the part of the battery cell to be welded, and when the supporting vertical plate is in the second position, the top cover is away from the part of the battery cell to be welded.

[0017] As an optional embodiment, the top cover clamping mechanism includes: two clamping members, which are arranged at intervals along a third direction, and the two clamping members are respectively used to clamp the top cover, and the third direction intersects with the first direction; a second driving assembly, which is arranged on the supporting vertical plate and connected to the two clamping members, and the second driving assembly can drive the two clamping members away from each other to loosen the top cover; two first resetting members, the first resetting members are connected to the clamping member and the mounting seat, and the first resetting members are used to reset the two clamping members to approach each other so that the two clamping members clamp the top cover.

[0018] As an optional embodiment, the second drive assembly includes: a second guide rail, which is arranged on the supporting vertical plate, and the second guide rail extends along a third direction; two second sliders, which are slidably arranged on the second guide rail, and the second sliders are connected to the clamping member; two first cam followers, each first cam follower is connected to a second slider, and the first cam follower can controllably drive the second slider to move along the second guide rail so that the two second sliders move away from each other.

[0019] As an optional implementation, each clamping member includes: a clamping member body, used to abut against the top cover; a connecting member, the connecting member is arranged on the clamping member body, the connecting member is arranged on the second slider, and the first reset member is connected to the connecting member.

[0020] As an optional implementation, each clamping member includes a slot disposed on a side facing the top cover, and the slot is used for limiting cooperation with the top cover.

[0021] As an optional embodiment, the top cover driving mechanism includes: a third driving component, which is arranged on the mounting seat and connected to the supporting plate, and the third driving component can drive the supporting plate to move from the first position to the second position; a second resetting member, which is connected to the mounting seat and the supporting plate, and the second resetting member is used to reset the supporting plate from the second position to the first position.

[0022] As an optional embodiment, the third driving assembly includes: a third guide rail, which is arranged on the mounting seat, and the third guide rail extends along the first direction; a third slider, which is slidably arranged on the third guide rail, and the third slider is connected to the supporting vertical plate; a second cam follower, which is connected to the supporting vertical plate, and the second cam follower can controllably drive the supporting vertical plate to move from the first position to the second position, so as to drive the third slider to move along the third guide rail.

[0023] As an optional implementation, the top cover clamping mechanism further includes: a top cover positioning mechanism, which is arranged on the supporting vertical plate, and the top cover positioning mechanism is used to abut against the top cover.

[0024] As an optional embodiment, the top cover positioning mechanism includes: a top cover push block, which is used to abut against the top cover; a connecting column, one end of which is connected to the supporting vertical plate, and the other end of the connecting column is movably connected to the top cover push block, and the top cover push block can move relative to the connecting column along a first direction; an elastic member, which is sleeved on the connecting column and located between the top cover push block and the supporting vertical plate.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] The battery cell flipping jig provided in the embodiment of the present application can realize the automatic flipping of the battery cell, avoiding the errors caused by manual flipping operations. The automated flipping process can ensure the synchronization of the flipping of the battery cell and the top cover, and ensure that the battery cell and the top cover do not undergo relative displacement during flipping, thereby ensuring the accuracy of welding between the battery cell and the top cover, and improving the welding efficiency and welding quality between the battery cell's pole ear and the connecting piece of the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 One of the structural schematic diagrams of the battery cell flipping fixture provided in the embodiment of the present application;

[0029] Figure 2 A schematic diagram of the three-dimensional structure of a battery cell provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of the top cover provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of the battery cell and the top cover provided in the embodiment of the present application;

[0032] Figure 5 The second structural schematic diagram of the battery cell flipping fixture provided in the embodiment of the present application;

[0033] Figure 6 The third structural schematic diagram of the battery cell flipping fixture provided in the embodiment of the present application;

[0034] Figure 7 One of the structural schematic diagrams of the top cover positioning device provided in the embodiment of the present application;

[0035] Figure 8 A second structural schematic diagram of the top cover positioning device provided in an embodiment of the present application;

[0036] Fig. 9 This is a third structural schematic diagram of the top cover positioning device provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100-battery cell flipping fixture; 1-battery cell; 11-ear; 2-top cover; 21-connecting piece; 01-mounting seat; 101-mounting base plate; 102-mounting vertical plate; 02-battery cell clamping device; 201-flipping base plate; 201a-avoidance part; 202-battery cell clamping mechanism; 2021-rotating clamping cylinder; 2022-pressing piece; 203-battery cell mounting base plate; 204-linear slider; 03-top cover positioning device; 301-top cover Clamping mechanism; 3011-clamping member; 30111-clamping member body; 30111a-slot; 30112-connecting member; 3012-second driving assembly; 30121-second guide rail; 30122-second slider; 30123-first cam follower; 3013-first reset member; 302-top cover driving mechanism; 3021-third driving assembly; 30211-third guide rail; 30212-third slider; 30213- Second cam follower; 3022-second reset member; 303-mounting bracket; 3031-mounting seat; 3032-supporting plate; 304-top cover positioning mechanism; 3041-top cover push block; 3042-connecting column; 3043-elastic member; 04-turning device; 401-turning mechanism; 4011-first driving assembly; 40111-first guide rail; 40112-first slider; 4012-rotating shaft; 4013-first transmission group Part; 40131- rack; 40132- gear; 40133- protective cover; 402- locking mechanism; 4021- locking member; 4022- unlocking joint; 403- first limit buffer mechanism; 4031- buffer member; 4032- limit member; 404- adapter plate; 404a- limit portion; 4041- shift block; 405- second limit buffer mechanism; 406- limit block; X- first direction; Z- second direction; Y- third direction. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In this application, the terms "upper", "lower", "top", "bottom", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated mechanisms, elements or components to have specific positions, or to be constructed and operated in specific positions.

[0041] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0042] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two mechanisms, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, the terms "first", "second", etc. are mainly used to distinguish different mechanisms, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated mechanisms, elements or components. Unless otherwise specified, "plurality" means two or more.

[0044] With the development of science and technology, lithium batteries, as efficient and environmentally friendly energy storage mechanisms, have seen rapid development in the manufacturing technology of lithium batteries. Lithium batteries are based on lithium metal or lithium compounds, have the characteristics of high energy and long life, and are widely used in the fields of intelligent equipment, electric vehicles, etc.

[0045] During the production of lithium batteries, the tabs on the battery cells need to be welded together with the connecting pieces on the top cover to maintain the stability of the lithium battery and the overall performance of the lithium battery. When welding the tabs and the connecting pieces, the top cover needs to be brought close to the battery cell and pressed against the tabs to ensure the relative position of the connecting piece and the battery cell tabs, thereby ensuring the welding quality between the battery cell tabs and the top cover connecting pieces.

[0046] In the related art, the welding of the pole ear and the connecting piece adopts a semi-automatic mode. When it is necessary to weld the pole ear on the battery cell and the connecting piece on the top cover, first weld the pole ear on the side of the battery cell facing the welding mechanism and the connecting piece on the side of the top cover facing the welding mechanism. After the welding operation on one side is completed, it is necessary to pause the production process to manually flip the battery cell so that the other side of the battery cell faces the welding mechanism, so as to weld the pole ear of the battery cell on the other side and the connecting piece of the top cover. Manually flipping the battery cell and the top cover increases the overall production cycle. Each time the battery cell is flipped, the production line needs to be paused to wait for the worker to operate, which reduces the production efficiency of the lithium battery. At the same time, manual operation has uncertainties, such as the accuracy of the flipping angle, the control of the force, etc., which may cause the relative position between the battery cell and the top cover to deviate, thereby affecting the subsequent welding quality between the pole ear and the top cover.

[0047] In order to solve the above problems, the inventors studied the limitations of the existing battery cell jigs used in battery cell welding, improved the existing battery cell jigs, and designed a battery cell flipping jig that can be mechanically driven to flip the battery cell when welding the battery cell's pole ears and the connecting pieces of the top cover, so as to solve the problem that traditional battery cell jigs cannot automatically flip the battery cell.

[0048] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0049] See also Figure 1 , Figure 2 Figure 3 and Figure 4 , Figure 1 This is one of the structural schematic diagrams of the battery cell flipping fixture 100 provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the three-dimensional structure of the battery cell 1 provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the three-dimensional structure of the top cover 2 provided in the embodiment of the present application. Figure 4 A schematic diagram of the structure of the battery cell 1 and the top cover 2 provided in the embodiment of the present application. The embodiment of the present application discloses a battery cell flipping jig 100, including: a mounting seat 01; a battery cell clamping device 02, which is arranged on the mounting seat 01, and the battery cell clamping device 02 includes a flipping bottom plate 201 and a battery cell clamping mechanism 202 arranged on the flipping bottom plate 201, the flipping bottom plate 201 is used to carry the battery cell 1, and the battery cell clamping mechanism 202 is used to clamp the battery cell 1; a top cover positioning device 03, the top cover positioning device 03 includes a top cover clamping mechanism 301 and a top cover driving mechanism 302, the top cover clamping mechanism 301 is used to clamp the top cover 2, and the top cover driving mechanism 302 is used to drive the top cover clamping mechanism 301 to move along the first direction X, so that the top cover 2 is close to or away from the part to be welded of the battery cell 1; a flipping device 04, the flipping device 04 is connected to the battery cell clamping device 02, and the flipping device 04 is used to drive the battery cell clamping device 02 and the top cover positioning device 03 to flip.

[0050] It can be understood that the battery cell flip jig 100 generally has a length direction, a width direction and a height direction, the length direction is the extension direction of the long side of the battery cell flip jig 100, and the width direction is the extension direction of the short side of the battery cell flip jig 100. For the convenience of description, the embodiment of the present application refers to the length direction of the battery cell flip jig 100 as the first direction X, the height direction of the battery cell flip jig 100 as the second direction Z, and the width direction of the battery cell flip jig 100 as the third direction Y.

[0051] For example, the second direction Z, the third direction Y and the first direction X intersect each other. In some examples, the second direction Z, the third direction Y and the first direction X may be perpendicular or approximately perpendicular. It is understandable that the second direction Z, the third direction Y and the first direction X may be "approximately perpendicular", that is, the angle between any two of the second direction Z, the third direction Y and the first direction X may be approximately equal to 90°, such as 88°, 89°, 91° or 92°.

[0052] The battery cell flipping jig 100 includes a mounting seat 01, which is the basic device of the battery cell flipping jig 100. The mounting seat 01 is used to support the battery cell clamping device 02, the top cover positioning device 03 and the flipping device 04 of the battery cell flipping jig 100. The mounting seat 01 ensures the stability of the battery cell flipping jig 100 during operation and reduces the errors caused by vibration or shaking of the battery cell clamping device 02 and the top cover positioning device 03 during the flipping process.

[0053] The battery cell clamping device 02 is arranged on the mounting base 01, and the battery cell clamping device 02 includes a flip base plate 201 and a battery cell clamping mechanism 202. The flip base plate 201 is used to support the battery cell 1 that needs to be welded. The flip base plate 201 can provide support for the battery cell 1 when the battery cell 1 is welded to prevent the battery cell 1 from shaking or falling off during welding, thereby ensuring the welding quality between the battery cell 1 and the top cover 2.

[0054] Optionally, the surface of the flip bottom plate 201 in contact with the battery cell 1 can be treated with anti-slip treatment (for example: setting anti-slip texture, anti-slip coating, etc.), and the side of the flip bottom plate 201 in contact with the battery cell 1 can also be provided with a battery cell mounting bottom plate 203 for limiting and fixing the battery cell 1, which is not limited in this embodiment.

[0055] The flip bottom plate 201 is provided with an avoidance portion 201a, and the avoidance portion 201a is provided corresponding to the position to be welded at the end of the battery cell 1. The position to be welded at the end of the battery cell 1 may be the position where the pole lug 11 of the battery cell 1 is located or other positions that need to be welded. After the battery cell clamping device 02 is flipped, the flip bottom plate 201 is located between the battery cell 1 and the external welding mechanism. At this time, the external welding mechanism can pass through the avoidance portion 201a to approach the position to be welded of the battery cell 1, so as to weld the pole lug 11 at the end of the battery cell 1 and the connecting piece 21 of the top cover 2, thereby preventing the external welding mechanism from interfering with the flip bottom plate 201, and ensuring the smooth progress of the welding operation between the pole lug 11 of the battery cell 1 and the connecting piece 21 of the top cover 2.

[0056] The battery cell clamping mechanism 202 is arranged on the flip base plate 201. The battery cell clamping mechanism 202 can clamp and fix the battery cell 1 on the flip base plate 201 to prevent the battery cell 1 from shaking or falling off during the welding process and the flipping process, and ensure that the relative position of the battery cell 1 and the top cover 2 does not move during the welding process and the flipping process, thereby ensuring the welding quality between the battery cell 1 and the top cover 2 and improving the yield rate of lithium battery production.

[0057] When the external mechanical device places the battery cell 1 on the flip base plate 201, the battery cell clamping mechanism 202 fixes the battery cell 1 to the flip base plate 201. After the welding operation on both sides of the battery cell 1 is completed, the battery cell clamping mechanism 202 releases the clamping of the battery cell 1, so that the external mechanical device can move the battery cell 1 to the next processing flow.

[0058] Optionally, the battery cell clamping mechanism can be a rotating clamping assembly driven by a rotating clamping cylinder to clamp the battery cell to the flip base plate; the battery cell clamping mechanism can also be a vacuum adsorption mechanism driven by a vacuum pump to fix the battery cell to the flip base plate through air pressure difference; the battery cell clamping mechanism can also be a magnetic adsorption mechanism that fixes the battery cell to the flip base plate by magnetically adsorbing the battery cell. This embodiment does not limit the specific implementation manner of the battery cell clamping mechanism.

[0059] The top cover positioning device 03 is arranged on the flip base plate 201 of the battery cell clamping device 02, and can flip along with the flip base plate 201, thereby ensuring that when the battery cell 1 flips along with the battery cell clamping device 02, the top cover 2 can flip synchronously driven by the top cover positioning device 03, ensuring that the relative position of the battery cell 1 and the top cover 2 does not move, thereby improving the welding accuracy between the battery cell 1 and the top cover 2.

[0060] The top cover positioning device 03 includes a top cover clamping mechanism 301, which is used to clamp the top cover 2. The top cover 2 is provided with a connecting piece 21 for welding with the pole lug 11 of the battery cell 1. The connecting piece 21 can be constructed as a U-shaped structure to be welded with the two pole lugs 11 respectively. The top cover clamping mechanism 301 is used to provide clamping force to the top cover 2 and position the top cover 2 to ensure that the position of the top cover 2 relative to the battery cell 1 is fixed before and after the battery cell 1 is flipped. At the same time, the top cover clamping mechanism 301 also ensures the stability of the top cover 2 during the welding process and the flipping process, prevents the displacement of the top cover 2 relative to the battery cell 1 caused by external force interference, thereby causing the offset of the welding position, and improves the welding effect between the pole lug 11 of the battery cell 1 and the connecting piece 21 of the top cover 2.

[0061] Optionally, the top cover clamping mechanism 301 and the flip bottom plate 201 can change specifications according to different specifications of battery cells 1 and top covers 2 to better adapt to different specifications of battery cells 1 and top covers 2, thereby improving the flexibility and versatility of the battery cell 1 flipping fixture 100.

[0062] Optionally, the top cover clamping mechanism may include a clamping claw to fix the top cover inside the clamping claw. The top cover clamping mechanism may also be a vacuum adsorption mechanism driven by a vacuum pump to fix the top cover to the top cover clamping mechanism through air pressure difference. The top cover clamping mechanism may also fix the top cover to the top cover clamping mechanism through magnetic adsorption. This embodiment does not limit the specific implementation of the top cover clamping mechanism.

[0063] The top cover positioning device 03 further includes a top cover driving mechanism 302, which can drive the top cover clamping mechanism 301 to move along the first direction X. The movement of the top cover clamping mechanism 301 along the first direction X can make the top cover 2 approach or move away from the to-be-welded portion of the battery cell 1. When the top cover clamping mechanism 301 moves away from the to-be-welded portion of the battery cell 1 along the first direction X, the external mechanical device can feed the top cover 2 to the top cover clamping mechanism 301. When the top cover clamping mechanism 301 approaches the to-be-welded portion of the battery cell 1 along the first direction X, the connecting piece 21 of the top cover 2 can abut against the pole ear 11 of the battery cell 1 to facilitate welding.

[0064] Optionally, the top cover driving mechanism 302 may include a cam follower, a slider guide, a cylinder or a linear motor driving mechanism, etc., so as to drive the top cover clamping mechanism 301 to move along the first direction X.

[0065] The battery cell flipping jig 100 further includes a flipping device 04, which is disposed on the mounting seat 01 and connected to the flipping bottom plate 201 of the battery cell clamping device 02. At least a portion of the flipping device 04 can rotate to flip the flipping bottom plate 201 of the battery cell clamping device 02, and to synchronously rotate the top cover positioning device 03 disposed on the flipping bottom plate 201.

[0066] Furthermore, the flipping bottom plate 201 follows at least a partial flipping of the flipping device 04, thereby flipping the battery cell 1 on the flipping bottom plate 201, so that the side originally facing the welding mechanism is away from the welding mechanism, and the unwelded side of the battery cell 1 is facing the welding mechanism, thereby realizing automatic flipping of the battery cell 1, improving the accuracy of rotation of the battery cell 1 and the top cover 2, preventing errors caused by manual operation, and improving the efficiency of processing the battery cell 1.

[0067] Optionally, the flipping device 04 may be a gear transmission structure that drives the flipping bottom plate to flip, or a motor that drives the flipping bottom plate to flip, or a transmission structure composed of a chain and a belt, which is not limited in this embodiment.

[0068] In this way, the battery cell flipping jig 100 provided in the embodiment of the present application can realize the automatic flipping of the battery cell 1, avoiding the errors caused by manual flipping operations, and the automated flipping process can ensure the synchronization of the flipping of the battery cell 1 and the top cover 2, and ensure that the battery cell 1 and the top cover 2 will not be relatively displaced during flipping, thereby ensuring the accuracy of welding between the battery cell 1 and the top cover 2, and improving the welding efficiency and welding quality between the pole ear 11 of the battery cell 1 and the connecting piece 21 of the top cover 2.

[0069] See also Figure 5 , Figure 5 The second structural schematic diagram of the battery cell flipping fixture 100 provided in the embodiment of the present application. In some embodiments, the mounting seat 01 includes: a mounting base plate 101; two mounting vertical plates 102, the two mounting vertical plates 102 are respectively connected to the two sides of the mounting base plate 101 along the first direction X, the battery cell clamping device 02 is located between the two mounting vertical plates 102, and the flipping device 04 is arranged on the mounting vertical plates 102.

[0070] The mounting seat 01 includes a mounting base 101 and two mounting vertical plates 102, the two mounting vertical plates 102 are respectively connected to the two sides of the mounting base 101 along the first direction X, and an installation space is formed between the two mounting vertical plates 102 to accommodate the battery cell clamping device 02, the top cover positioning device 03 and the partial flipping device 04. Optionally, the installation position of the mounting vertical plate 102 can be set according to actual production needs, which is not limited in this embodiment.

[0071] Optionally, a linear slider 204 can be provided on the side of the mounting base 101 away from the flipping base 201, so that the battery cell flipping jig 100 can be moved as a whole relative to the welding mechanism, so as to move the battery cell flipping jig 100 as a whole to the flipping station for flipping, and after the flipping device 04 flips the battery cell clamping device 02 and the top cover positioning device 03, the mounting base 101 is slid to the welding station through the linear slider 204 to avoid interference between the battery cell flipping jig 100 and the welding mechanism or other external equipment during the flipping process.

[0072] It can be understood that a plurality of battery cell flipping jigs 100 can be arranged in one welding station, and by moving the linear slider 204 arranged on the mounting base 101, the plurality of battery cell flipping jigs 100 can be alternately moved in the welding station, thereby improving the welding efficiency of the battery.

[0073] See also Figure 5 and Figure 6 , Figure 6The third structural diagram of the battery cell flipping fixture 100 provided in the embodiment of the present application. In some embodiments, the flipping device 04 includes: a flipping mechanism 401, which is connected to the flipping bottom plate 201, and the flipping mechanism 401 can controllably drive the flipping bottom plate 201 to flip; a locking mechanism 402, which can lock and unlock the flipping mechanism 401.

[0074] The flip mechanism 401 is disposed on the mounting seat 01 and connected to the flip base plate 201. A portion of the flip mechanism 401 is connected to the flip base plate 201 so that the flip base plate 201 drives the entire battery cell clamping device 02 to flip, thereby achieving the purpose of flipping the battery cell 1 for welding on both sides.

[0075] Optionally, the flip mechanism 401 can be connected to the flip base plate 201 through a rotating shaft 4012 and a connecting block, or can be connected to the flip base plate 201 through a connecting rod, or can be connected to the flip base plate 201 through a chain or a belt, which is not limited in this embodiment.

[0076] Optionally, the flipping mechanism 401 may be provided with a shock absorbing structure to prevent vibration during the rotation process from affecting the welding strength between the tab 11 of the battery cell 1 and the connecting piece 21 of the top cover 2 .

[0077] Optionally, the flipping mechanism 401 and the locking mechanism 402 may be disposed on the same mounting plate 102 .

[0078] The flipping device 04 further includes a locking mechanism 402, which is connected to the flipping mechanism 401, and the locking mechanism 402 can unlock and lock the movement of the flipping mechanism 401. The locking mechanism 402 locks the flipping mechanism 401 to ensure that the flipping mechanism 401 can be fixed when the battery cell 1 is welded, that is, when the flipping mechanism 401 does not need to be flipped, to prevent unnecessary rotation or deviation from affecting the welding position and welding effect between the battery cell 1 and the top cover 2, thereby improving the welding efficiency between the battery cell 1 and the top cover 2.

[0079] At the same time, when the battery cell 1 needs to rotate to weld the pole ear 11 on the other side, that is, when the flipping mechanism 401 needs to drive the flipping base plate 201 to flip, the locking mechanism 402 can release the lock on the flipping mechanism 401 so that the flipping base plate 201 can be flipped smoothly, thereby driving the battery cell clamping device 02 and the top cover positioning device 03 to rotate synchronously.

[0080] Optionally, the locking mechanism 402 may be a buckle structure, a clamping structure, a locking pin structure, or the like that can achieve locking and unlocking of the flip mechanism 401 , which is not limited in this embodiment.

[0081] See also Figure 6The flipping device 04 also includes: in some embodiments, at least two first position-limiting buffer mechanisms 403, the first position-limiting buffer mechanisms 403 are arranged on the mounting seat 01, the first position-limiting buffer mechanisms 403 extend along the second direction Z, at least two first position-limiting buffer mechanisms 403 are arranged at intervals along the third direction Y and have a height difference in the second direction Z, the second direction Z, the third direction Y and the first direction X all intersect; each first position-limiting buffer mechanism 403 is located on the flipping path of the flipping bottom plate 201, at least one first position-limiting buffer mechanism 403 is used to abut against one side of the flipping bottom plate 201, and at least one first position-limiting buffer mechanism 403 is used to abut against the other side of the flipping bottom plate 201.

[0082] At least two first limit buffer mechanisms 403 can be respectively disposed on the two mounting uprights 102 and extend along the second direction Z. The first limit buffer mechanism 403 is used to limit the flipping of the flip bottom plate 201 to ensure that the flip mechanism 401 can accurately flip the battery cell 1 to the other side that needs to be welded.

[0083] The two first position-limiting buffer mechanisms 403 are arranged at intervals along the third direction Y and have a height difference in the second direction Z, so that when the flip bottom plate 201 flips counterclockwise following the flip mechanism 401, the flip bottom plate 201 can touch the first position-limiting buffer mechanism 403 at a higher position in the second direction Z. When the flip bottom plate 201 flips clockwise following the flip mechanism 401, the flip bottom plate 201 can touch the first position-limiting buffer mechanism 403 at a lower position in the second direction Z again.

[0084] Each first position-limiting buffer mechanism 403 is located on the flipping path of the flip bottom plate 201, at least one first position-limiting buffer mechanism 403 is used to abut against one side of the flip bottom plate 201, and at least one first position-limiting buffer mechanism 403 is used to abut against the other side of the flip bottom plate 201. When the flip bottom plate 201 rotates clockwise or counterclockwise, the first position-limiting buffer mechanism 403 can limit the flip bottom plate 201, so that when the flip bottom plate 201 rotates clockwise or counterclockwise to 180°, it can abut against the first position-limiting buffer mechanism 403 to keep the battery cell 1 flat.

[0085] Optionally, the first position limiting buffer mechanism 403 may be a position limiting buffer column, a position limiting buffer block or an elastic member 3043 or other structure capable of forming a position limiting buffer, which is not limited in this example.

[0086] Optionally, the flip bottom plate 201 may be provided with a limit block 406 corresponding to the first limit buffer mechanism 403, and used to abut against the first limit buffer mechanism 403 to form a limit fit. This allows the abutment between the flip bottom plate 201 and the first limit buffer mechanism 403 to be further buffered, reducing the vibration generated when the flip bottom plate 201 contacts the first limit buffer mechanism 403. At the same time, the provision of the limit block 406 can simplify the maintenance of the flip bottom plate 201. When the flip bottom plate 201 needs to be maintained, the limit block 406 can be disassembled without replacing the flip bottom plate 201, thereby reducing the maintenance cost of the battery cell clamping device 02.

[0087] Please refer to Figure 1 In some embodiments, the first limit buffer mechanism 403 includes: a buffer member 4031, which is disposed on the mounting seat 01 and extends along the second direction Z; a limit member 4032, which is disposed on the mounting seat 01 and extends along the second direction Z, and the free end of the limit member 4032 is lower than the free end of the buffer member 4031.

[0088] The first position-limiting buffer mechanism 403 includes a buffer 4031 and a position-limiting member 4032. It can be understood that the free end of the position-limiting member 4032 in the first position-limiting buffer mechanism 403 is lower than the free end of the buffer 4031. The flip bottom plate 201 can first contact the buffer 4031 during the flipping process, so that the buffer 4031 absorbs part of the kinetic energy of the flip bottom plate 201 when flipping, so as to achieve the purpose of stable contact between the flip bottom plate 201 and the buffer 4031 to reduce vibration.

[0089] At the same time, the buffer member 4031 can also reduce the noise and impact generated when the flip bottom plate 201 contacts the first position-limiting buffer mechanism 403 , thereby preventing the first position-limiting buffer mechanism 403 from damaging the flip bottom plate 201 .

[0090] Optionally, the buffer member 4031 may be a rubber buffer structure, a spring buffer structure, a foam buffer structure, or other structure capable of forming a buffer effect, which is not limited in this embodiment.

[0091] The first limit buffer mechanism 403 also includes a limit member 4032. The flip bottom plate 201 first abuts against the buffer member 4031, which has the functions of buffering and preliminary limit for the flip bottom plate 201. The limit member 4032 can ensure accurate limit for the flip bottom plate 201 and prevent the flip bottom plate 201 from over-flipping, so as to keep the flip bottom plate 201 from flipping when flipping 180°, so as to keep the battery cell 1 on the flip bottom plate 201 flat.

[0092] Optionally, the limiting member 4032 may be a limiting column, a limiting block, a magnetic limiting structure, or other structure that can form a limiting fit, which is not limited in this embodiment.

[0093] like Figure 6 As shown, in some embodiments, the flipping mechanism 401 includes: a first driving component 4011, which is arranged on the mounting seat 01; a rotating shaft 4012, which passes through the mounting seat 01 and is connected to the flip base plate 201; a first transmission component 4013, and the first transmission component 4013 is connected to the first driving component 4011 and the rotating shaft 4012. The rotating shaft 4012 rotates under the drive of the first transmission component 4013 to drive the flip base plate 201 to flip.

[0094] The first driving assembly 4011 is disposed on the mounting vertical plate 102, and the first driving assembly 4011 can convert the power provided by the external power device into rotational motion or linear motion, thereby driving the flip mechanism 401 to move through the first transmission assembly 4013 and the rotating shaft 4012, thereby driving the flip bottom plate 201 and the battery cell 1 to flip. Optionally, the first driving assembly 4011 can be a guide rail slider that cooperates to transmit external power, a motor drives the rotating shaft 4012 to rotate, etc., which is not limited in this embodiment.

[0095] The flip mechanism 401 includes a rotating shaft 4012 passing through the mounting plate 102. The mounting plate 102 can provide support for the rotating shaft 4012 so that the rotating shaft 4012 will not shake or fall off when transmitting torque. The rotating shaft 4012 is connected to the flip base plate 201, so that the torque of the rotating shaft 4012 can be transmitted to the flip base plate 201. Optionally, the rotating shaft 4012 can be directly connected to the flip base plate 201, or can be connected to the flip base plate 201 through a connecting block, which is not limited in this embodiment.

[0096] The flip mechanism 401 further includes a first transmission assembly 4013, which is connected to the first drive assembly 4011 and the rotating shaft 4012. The first drive assembly 4011 can drive the first transmission assembly 4013 to rotate the rotating shaft 4012, thereby driving the flipping of the flip bottom plate 201. Optionally, the first transmission assembly 4013 can be a gear 40132 transmission, a belt transmission, a connecting rod transmission, etc., which is not limited in this embodiment.

[0097] See also Figure 6 In some embodiments, the first transmission component 4013 includes: a rack 40131, which is movably disposed on the mounting base 01, and the rack 40131 can move along a third direction Y under the drive of the first driving component 4011, and the third direction Y intersects with the first direction X; a gear 40132, which is connected to the rotating shaft 4012, and the gear 40132 is rotatably disposed on the mounting base 01, and the gear 40132 can mesh with the rack 40131, and the gear 40132 can rotate following the movement of the rack 40131.

[0098] The rack 40131 is arranged on the mounting plate 102 and can move along the third direction Y relative to the mounting seat 01. The first driving component 4011 can receive the force transmitted by the external power device and convert it into motion, thereby driving the rack 40131 to move along the third direction Y within a predetermined trajectory.

[0099] The gear 40132 is meshed with the rack 40131 and is disposed on the mounting vertical plate 102. The gear 40132 is sleeved on the rotating shaft 4012. The movement of the rack 40131 along the third direction Y can drive the movement of the rack 40131, thereby driving the gear 40132 to rotate through the mutually meshing transmission teeth provided on the rack 40131 and the gear 40132, and converting the linear motion of the rack 40131 along the third direction Y into the rotational motion of the gear 40132. At the same time, the rotation of the gear 40132 can drive the rotating shaft 4012 passing through the gear 40132 to rotate, so that the rotating shaft 4012 drives the flip bottom plate 201 and the battery cell 1 to flip.

[0100] Optionally, a protective cover 40133 may be provided outside the gear 40132 and the rack 40131 to wrap the movement of the gear 40132 and the rack 40131 inside the protective cover 40133, thereby preventing the wear of the gear 40132 and the rack 40131 caused by external factors such as dust and moisture from affecting the meshing effect, thereby ensuring the stability of the transmission between the gear 40132 and the rack 40131. At the same time, the protective cover 40133 can prevent the operator from contacting the gear 40132 and the rack 40131 and causing accidental injury.

[0101] See also Figure 6 In some embodiments, the first driving component 4011 includes: a first guide rail 40111, which is arranged on the mounting seat 01, and the first guide rail 40111 extends along the third direction Y; a first slider 40112, which is movably arranged on the first guide rail 40111, and the first slider 40112 can slide along the first guide rail 40111 under the action of external force, and the first slider 40112 is connected to the rack 40131.

[0102] The first guide rail 40111 is arranged on the mounting plate 102 and extends along the third direction Y. The first guide rail 40111 can guide and support the first slider 40112 and provide a moving path for the first slider 40112 to move along the third direction Y.

[0103] The first slider 40112 is slidably disposed on the first guide rail 40111, so that the first slider 40112 can move along the extension direction of the first guide rail 40111. The first slider 40112 can slide along the third direction Y under the drive of an external power device, thereby driving the rack 40131 connected to the first slider 40112 to move synchronously along the third direction Y, the rack 40131 drives the gear 40132 to rotate, and the gear 40132 drives the rotating shaft 4012 to rotate, so that the flip bottom plate 201 flips, thereby achieving the purpose of flipping the battery cell 1 fixed to the flip bottom plate 201.

[0104] See also Figure 6 In some embodiments, the flipping device 04 also includes: an adapter plate 404, which is arranged on the first slider 40112, and the adapter plate 404 can drive the first slider 40112 to move along the third direction Y, and the adapter plate 404 includes a limiting portion 404a; at least two second limiting buffer mechanisms 405, and at least two second limiting buffer mechanisms 405 are arranged at intervals along the third direction Y, and the two second limiting buffer mechanisms 405 are respectively located on both sides of the limiting portion 404a.

[0105] The adapter plate 404 is disposed on the first slider 40112, and the adapter plate 404 is connected to an external power device. The adapter plate 404 can move under the drive of the external power device, so that the adapter plate 404 can drive the first slider 40112 to move. The adapter plate 404 is connected to the first slider 40112, so that the adapter plate 404 and the first slider 40112 can keep moving synchronously along the third direction Y.

[0106] Optionally, a shift block 4041 may be provided on the adapter plate 404, and the shift block 4041 is used to connect with an external power device to receive external power and move along the third direction Y, so that the adapter plate 404 can move along the third direction Y driven by the external power.

[0107] The adapter plate 404 is provided with a limiting portion 404a, which extends along the second direction Z. The limiting portion 404a is used to cooperate with at least two second limiting buffer mechanisms 405 provided on the mounting vertical plate 102. When the adapter plate 404 moves along the third direction Y, the two sides of the upper limiting portion 404a of the adapter plate 404 can respectively abut against the two second limiting buffer mechanisms 405 arranged at intervals along the third direction Y, thereby limiting the movement range of the adapter plate 404 along the third direction Y, and preventing the gear 40132 and the rack 40131 from being damaged due to excessive movement of the adapter plate 404 along the third direction Y.

[0108] Optionally, the second limit buffer mechanism 405 may be provided with a buffer head so that the limit portion 404a of the adapter plate 404 can be subjected to a certain buffer force when in contact with the second limit buffer mechanism 405, thereby reducing the vibration and noise generated when the limit portion 404a abuts against the second limit buffer mechanism 405.

[0109] See also Figure 6 In some embodiments, the locking mechanism 402 includes: a locking member 4021, which is disposed on the adapter plate 404, and the locking member 4021 can loosen or clamp the first guide rail 40111; an unlocking connector 4022, which is disposed on the mounting seat 01, and the unlocking connector 4022 can drive the locking member 4021 to loosen the first guide rail 40111.

[0110] The locking member 4021 is disposed on the adapter plate 404 and can follow the adapter plate 404 to move along the third direction Y. The locking member 4021 can loosen or clamp the first guide rail 40111. When the locking member 4021 clamps the first guide rail 40111, the position of the locking member 4021 relative to the first guide rail 40111 is fixed, that is, the position of the first slider 40112 relative to the first guide rail 40111 is fixed, thereby limiting the transmission between the gear 40132 and the rack 40131, thereby ensuring that the position of the flip bottom plate 201 is fixed, and preventing the flip bottom plate 201 from being flipped and moved unnecessarily. When the locking member 4021 releases the first guide rail 40111, the locking member 4021 can move relative to the first guide rail 40111, that is, the first slider 40112 can move along the first guide rail 40111, thereby driving the rack 40131 to move along the third direction Y, and the rack 40131 drives the gear 40132 meshing with the rack 40131 to rotate, thereby driving the rotation of the rotating shaft 4012, and the flip base plate 201 is flipped through the connection between the rotating shaft 4012 and the flip base plate 201.

[0111] Optionally, the locking member may be a pneumatic locking mechanism, a mechanical locking mechanism, an electromagnetic locking mechanism, or other mechanism capable of loosening or clamping the first guide rail, which is not limited in this embodiment.

[0112] The locking mechanism 402 also includes an unlocking joint 4022, which is used to control the locking member 4021 to release the first guide rail 40111. Specifically, the locking member 4021 can be a pneumatic locking mechanism 402, and the unlocking joint 4022 can be a gas joint. When the flip base plate 201 needs to be flipped, high-pressure gas can be transmitted to the unlocking joint 4022, so as to unlock the locking member 4021 and make the locking member 4021 release the clamping of the first guide rail 40111. When the flip base plate 201 does not need to be flipped, the transmission of high-pressure gas to the unlocking joint 4022 is stopped, and the locking member 4021 returns to the state of clamping the first guide rail 40111, thereby locking the movement of the first slider 40112 along the third direction Y, thereby achieving the purpose of locking the flip base plate 201.

[0113] Please refer to Figure 1 In some embodiments, the battery cell clamping mechanism 202 further includes: a rotating clamping cylinder 2021, which is disposed on the flip base plate 201; a clamping piece 2022, which is disposed on the rotating clamping cylinder 2021. The clamping piece 2022 can rotate and move closer to and away from the flip base plate 201 driven by the rotating clamping cylinder 2021 to clamp or release the battery cell 1.

[0114] The rotary clamping cylinder 2021 is arranged on the flip base plate 201, and the rotary clamping cylinder 2021 includes a cylinder barrel and a piston rod. The cylinder barrel is arranged on the flip base plate 201, and the piston rod can move along the second direction Z and rotate during the movement.

[0115] The pressing member 2022 is arranged on the piston rod of the rotating clamping cylinder 2021 , and the pressing member 2022 can move with the piston rod. It can be understood that the pressing member 2022 can move along the second direction Z and rotate during the movement, thereby approaching and moving away from the flip base plate 201 .

[0116] The rotating clamping cylinder 2021 can be turned synchronously with the turning of the flip base plate 201, so that the clamping member 2022 can also be turned synchronously with the turning of the flip base plate 201, ensuring that during the turning process of the flip base plate 201, the battery cell 1 can be stably clamped on the flip base plate 201 without deviation or falling off.

[0117] When the battery cell 1 needs to be placed on the flip bottom plate 201, the rotating clamping cylinder 2021 is lifted by an external power device, driving the clamping member 2022 to move away from the flip bottom plate 201 and rotate along the second direction Z, so that the clamping member 2022 and the flip bottom plate 201 do not overlap in the second direction Z. Subsequently, the external device places the battery cell 1 on the flip bottom plate 201, and then the rotating clamping cylinder 2021 is reset and descends along the second direction Z, thereby driving the clamping member 2022 to move closer to the flip bottom plate 201 and rotate along the second direction Z, so that the battery cell 1 is located between the clamping member 2022 and the flip bottom plate 201, and abuts against the flip bottom plate 201 and the clamping member 2022, thereby achieving the purpose of fixing the battery cell 1 to the flip bottom plate 201.

[0118] It can be understood that when the battery cell 1 needs to be removed from the flip base plate 201 , the movement of the rotating clamping cylinder 2021 is the same as the movement when the battery cell 1 is placed on the flip base plate 201 , which will not be described again here.

[0119] Optionally, a buffer structure (e.g., a rubber pad, a silicone pad, etc.) may be provided on the surface where the clamping member 2022 abuts against the battery cell 1, so that the abutment between the battery cell 1 and the clamping member 2022 can be buffered, thereby preventing the clamping member 2022 from applying excessive pressure to the battery cell 1 and damaging the battery cell 1.

[0120] See also Figure 7 , Figure 7 One of the structural schematic diagrams of the top cover positioning device 03 provided in the embodiment of the present application. In some embodiments, the top cover positioning device 03 includes: a mounting bracket 303, the mounting bracket 303 includes a mounting seat 3031 and a support vertical plate 3032 that can move relative to the mounting seat 3031, the mounting seat 3031 is arranged on the flip bottom plate 201, the top cover clamping mechanism 301 is arranged on the support vertical plate 3032, and the top cover driving mechanism 302 is connected to the support vertical plate 3032; the support vertical plate 3032 has a first position and a second position spaced along the first direction X relative to the mounting seat 3031, and the top cover driving mechanism 302 can drive the support vertical plate 3032 to reciprocate between the first position and the second position; when the support vertical plate 3032 is located at the first position, the top cover is close to the part of the battery cell 1 to be welded, and when the support vertical plate 3032 is located at the second position, the top cover is away from the part of the battery cell 1 to be welded.

[0121] The mounting bracket 303 includes a mounting seat 3031 and a supporting upright plate 3032 that can move relative to the mounting seat 3031 . The mounting seat 3031 is disposed on the flip bottom plate 201 to ensure that the top cover clamping mechanism 301 can be flipped synchronously with the flipping of the flip bottom plate 201 .

[0122] The support plate 3032 can move relative to the mounting seat 3031, and the top cover clamping mechanism 301 is arranged on the support plate 3032 so that the top cover clamping mechanism 301 moves along the first direction X following the support plate 3032. The support plate 3032 has a first position and a second position spaced apart along the first direction X relative to the mounting seat 3031, and the top cover driving mechanism 302 drives the support plate 3032 to reciprocate between the first position and the second position by connecting with the support plate 3032.

[0123] When the support plate 3032 is located at the first position, the top cover 2 is close to the to-be-welded portion of the battery cell 1 along the first direction X. At this time, the connecting piece 21 on the top cover 2 abuts against the pole ear 11 on the battery cell 1, so that the welding mechanism performs welding of the connecting piece 21 and the pole ear 11. When the support plate 3032 is located at the second position, the top cover clamping mechanism 301 drives the top cover 2 away from the to-be-welded portion of the battery cell 1, thereby facilitating the loading of the top cover 2 in the top cover clamping mechanism 301.

[0124] The shape and specific position of the supporting plate 3032 can be determined according to actual production requirements, and this embodiment does not limit this.

[0125] See also Figure 7 In some embodiments, the top cover clamping mechanism 301 includes: two clamping members 3011, which are arranged at intervals along the third direction Y, and the two clamping members 3011 are respectively used to clamp the top cover 2, and the third direction Y intersects with the first direction X; a second driving component 3012, which is arranged on the supporting vertical plate 3032 and connected to the two clamping members 3011, and the second driving component 3012 can drive the two clamping members 3011 away from each other to loosen the top cover 2; two first resetting members 3013, the first resetting members 3013 are connected to the clamping members 3011 and the mounting seat 3031, and the first resetting members 3013 are used to reset the two clamping members 3011 to approach each other so that the two clamping members 3011 clamp the top cover 2.

[0126] The two clamping members 3011 are arranged at intervals along the third direction Y, and an accommodating space is formed between the two clamping members 3011. The top cover 2 is arranged in the accommodating space between the two clamping members 3011. The two clamping members 3011 can approach and move away from each other, thereby achieving clamping and loosening of the top cover 2.

[0127] Optionally, a buffer structure (e.g., a rubber pad, a silicone pad, etc.) can be provided on the surface where the two clamping members 3011 abut against the top cover 2, so that the abutment between the top cover 2 and the clamping members 3011 can be buffered, thereby preventing the clamping force of the clamping members 3011 on the top cover 2 from being too large, causing the top cover 2 to bend and deform.

[0128] The second driving assembly 3012 is disposed on the supporting plate 3032 and connected to the two clamping members 3011. The second driving assembly 3012 is connected to an external power device. The second driving assembly 3012 can move under the drive of the external power device, so that the second driving assembly 3012 can drive the clamping members 3011 to move to release the clamping of the top cover 2. Optionally, the second driving assembly 3012 can be a slider guide matching drive, a motor drive, or a cylinder drive, etc., which is not limited in this embodiment.

[0129] One end of the first restoring member 3013 is connected to the mounting seat 3031, and the other end of the first restoring member 3013 is connected to the clamping member 3011. When the two clamping members 3011 are driven to separate by the second driving assembly 3012, the first restoring member 3013 is deformed under the pulling of the clamping members 3011, and after the top cover 2 is placed in the accommodation space formed between the two clamping members 3011, the second driving assembly 3012 stops driving the clamping members 3011, and the restoring force generated by the deformation of the first restoring member 3013 drives the two clamping members 3011 to reset and approach each other, so that the two clamping members 3011 clamp the top cover 2.

[0130] Optionally, the first restoring member 3013 may be a spring, a tension spring, an elastic sheet, etc., which is not limited in this embodiment.

[0131] See also Figure 7 In some embodiments, the second driving assembly 3012 includes: a second guide rail 30121, which is arranged on the supporting plate 3032, and the second guide rail 30121 extends along the third direction Y; two second sliders 30122, which are slidably arranged on the second guide rail 30121, and each second slider 30122 is connected to a clamping member 3011; two first cam followers 30123, each first cam follower 30123 is connected to a second slider 30122, and the first cam follower 30123 can drive the second slider 30122 to move along the second guide rail 30121 under the drive of an external power device, so that the two second sliders 30122 move away from each other.

[0132] The second guide rail 30121 is disposed on the support plate 3032 and extends along the third direction Y. The second guide rail 30121 can move between the first position and the second position following the support plate 3032. The second guide rail 30121 is slidably connected to the second slider 30122, and the second slide rail provides a movement path for the second slider 30122 to move along the third direction Y.

[0133] Specifically, the two second sliders 30122 move in opposite directions along the third direction Y, that is, one second slider 30122 drives one clamping member 3011 to move along the extension direction of the second guide rail 30121, and the other second slider 30122 drives the other clamping member 3011, thereby achieving the approach and distance of the two clamping members 3011.

[0134] The second driving assembly 3012 also includes two first cam followers 30123, each of which is connected to a second slider 30122. The first cam follower 30123 can drive the second slider 30122 to move along the second guide rail 30121 under the action of an external power device.

[0135] When the top cover 2 needs to be clamped, the external power device can move downward from the space between the two first cam followers 30123, so that the external power device can abut against the two first cam followers 30123, and the two first cam followers 30123 are pushed by the external power device to move along the third direction Y. The two first cam followers 30123 drive the two second sliders 30122 to move in the opposite direction along the third direction Y, thereby realizing the separation of the two clamping members 3011. At the same time, the two first restoring members 3013 are deformed.

[0136] When the external mechanical equipment places the top cover 2 between the two clamping members 3011, the external power equipment moves upward along the second direction Z to release the cooperation with the first cam follower 30123. The first restoring member 3013 generates a restoring force on the clamping member 3011, pulling the two clamping members 3011 to move closer to each other, thereby clamping the top cover 2.

[0137] It should be noted that the second slider 20122 is driven to move by an external power device in combination with the first cam follower 30123. Since the first cam follower 30123 occupies a small space and is suitable for use in occasions where precise control and limited space are required, the overall volume of the top cover positioning device 03 is reduced by using an external power device in combination with the first cam follower 30123 to drive the second slider 20122 to move, thereby further miniaturizing the battery cell flipping jig 100.

[0138] See also Figure 7 In some embodiments, each clamping member 3011 includes: a clamping member body 30111, used to abut the top cover 2; a connecting member 30112, the connecting member 30112 is arranged on the clamping member body 30111, the connecting member 30112 is arranged on the second slider 30122, and the first reset member 3013 is connected to the connecting member 30112.

[0139] The clamping member 3011 includes a clamping member body 30111 and a connecting member 30112. The clamping member body 30111 refers to the part of the clamping member 3011 abutting against the top cover 2, and is used to clamp the top cover 2. The shape and size of the clamping member body 30111 can be designed according to the shape and size of the top cover 2.

[0140] Optionally, the clamp body 30111 can be designed to be detachably connected to the connector 30112. When welding battery cells 1 and top covers 2 of different specifications, the clamp body 30111 can be replaced to adapt to top covers 2 of different specifications without replacing the entire battery cell 1 flipping jig 100, thereby improving the applicability of the battery cell flipping jig 100.

[0141] The connecting member 30112 is used to connect the clamp body 30111 and the second slider 30122, so that the clamp body 30111 can move with the second slider 30122. The connecting member 30112 is arranged between the clamp body 30111 and the second slider 30122. The shape and structure of the connecting member 30112 can be designed according to the specific situation and space between the second slider 30122 and the clamp body 30111, and this embodiment does not limit this.

[0142] At the same time, the connecting member 30112 can also play a role of buffering and shock absorption. When the second slider 30122 moves quickly or is impacted by external force, the connecting member 30112 can absorb part of the energy, reduce the impact on the clamp body 30111 and the top cover 2, and prevent the clamp body 30111 and the top cover 2 from being damaged.

[0143] See also Figure 7 In some embodiments, each clamping member 3011 includes: a clamping member body 30111 is provided with a slot 30111a on one side facing the top cover 2, and the slot 30111a is used to cooperate with the top cover 2 in a limiting manner.

[0144] The shape and size of the slot 30111a are set to correspond to the shape and size of the top cover 2, so that the slot 30111a set on the clamp body 30111 can play a certain limiting role on the top cover 2, preventing the top cover 2 from shaking and falling off unnecessarily, affecting the welding effect of the battery cell 1 and the top cover 2.

[0145] Optionally, the slot 30111a can be a straight slot design to directly match the top cover 2. The slot 30111a can also be configured as a V-shaped slot to provide a certain guiding effect on the top cover 2. The slot 30111a can also be configured as a plurality of limit slots 30111a to match the top cover 2.

[0146] See also Figure 8 , Figure 8The second structural diagram of the top cover positioning device 03 provided in the embodiment of the present application. In some embodiments, the top cover driving mechanism 302 includes: a third driving component 3021, which is arranged on the mounting seat 3031 and connected to the supporting upright plate 3032, and the third driving component 3021 can drive the supporting upright plate 3032 to move from the first position to the second position; a second resetting member 3022, which is connected to the mounting seat 3031 and the supporting upright plate 3032, and the second resetting member 3022 is used to reset the supporting upright plate 3032 from the second position to the first position.

[0147] The third driving assembly 3021 is disposed on the mounting seat 3031 and connected to the supporting plate 3032, so that the third driving assembly 3021 can receive an external power device and drive the supporting plate 3032 to move from the first position to the second position. Optionally, the third driving assembly 3021 can be a slider guide matching transmission, a motor drive, or a cylinder drive, etc., which is not limited in this embodiment.

[0148] One end of the second reset member 3022 is connected to the mounting seat 3031, and the other end of the second reset member 3022 is connected to the support plate 3032. When the support plate 3032 is driven by the third driving assembly 3021 to move from the first position to the second position, the external mechanical device loads the top cover 2 to the top cover clamping mechanism 301, and the second reset member 3022 is deformed under the pull of the support plate 3032. When the support plate 3032 needs to return from the second position to the first position, the third driving assembly 3021 cancels the driving force on the support plate 3032, and the second reset member 3022 drives the support plate 3032 to reset to the first position due to its own reset function, so that the top cover 2 is close to the welding position of the battery cell 1.

[0149] Optionally, two second reset members 3022 may be provided, which are arranged at intervals along the third direction Y and located on both sides of the support plate 3032, so that the process of restoring the support plate 3032 to the first position can be smoother.

[0150] Optionally, the second restoring member 3022 may be a spring, a tension spring, an elastic sheet, etc., which is not limited in this embodiment.

[0151] See also Fig. 9 , Fig. 9The third structural diagram of the top cover positioning device 03 provided in the embodiment of the present application. In some embodiments, the third driving assembly 3021 includes: a third guide rail 30211, which is arranged on the mounting seat 3031, and the third guide rail 30211 extends along the first direction X; a third slider 30212, which is slidably arranged on the third guide rail 30211, and the third slider 30212 is connected to the support vertical plate 3032; a second cam follower 30213, which is connected to the support vertical plate 3032, and the second cam follower 30213 can move the support vertical plate 3032 from the first position to the second position under the action of an external power device, so as to drive the third slider 30212 to move along the third guide rail 30211.

[0152] The third guide rail 30211 is disposed on the mounting seat 3031 and extends along the first direction X. The third guide rail 30211 can guide and support the third slider 30212 , and provides a moving path for the third slider 30212 to move along the first direction X.

[0153] The third slider 30212 is slidably arranged on the third guide rail 30211, so that the third slider 30212 can move along the extension direction of the third guide rail 30211. The third slider 30212 is connected to the support plate 3032. The movement of the support plate 3032 along the first direction X can drive the third slider 30212 to move along the first direction X, so that a sliding fit is formed between the support plate 3032 and the mounting seat 3031, thereby preventing excessive friction between the support plate 3032 and the mounting seat 3031, which affects the reciprocating movement of the support plate 3032 between the first position and the second position.

[0154] The third driving assembly 3021 also includes a second cam follower 30213, which is connected to the supporting plate 3032. The second cam follower 30213 can drive the supporting plate 3032 to reciprocate between the first position and the second position under the action of an external power device, thereby driving the third slider 30212 connected to the supporting plate 3032 to move along the third guide rail 30211.

[0155] When the loading operation of the top cover 2 is required, the external power device can move downward from the space on the side of the second cam follower 30213 away from the mounting vertical plate 102, so that the external power device can abut against the second cam follower 30213, and the second cam follower 30213 is pushed by the external power device to move along the first direction X, and the second cam follower 30213 drives the third slider 30212 to move along the first direction X, so that the supporting vertical plate 3032 moves to the second position away from the welding position of the battery cell 1, and the external mechanical device can load the top cover 2 between the two clamping members 3011. At the same time, the second reset member 3022 is deformed.

[0156] When the external mechanical equipment places the top cover 2 between the two clamping members 3011 and the clamping members 3011 clamp the top cover 2, the external power equipment moves upward along the second direction Z to release the cooperation with the second cam follower 30213, and the second reset member 3022 generates a reset force on the supporting vertical plate 3032, pulling the supporting vertical plate 3032 to move to the first position, thereby making the top cover 2 close to the part to be welded of the battery cell 1 to facilitate subsequent welding operations.

[0157] Please refer to Figure 7 In some embodiments, the top cover clamping mechanism 301 further includes: a top cover positioning mechanism 304 , which is disposed on the supporting vertical plate 3032 , and the top cover positioning mechanism 304 is used to abut against the top cover 2 .

[0158] One end of the top cover positioning mechanism 304 is arranged on the supporting upright plate 3032, and the other end of the top cover positioning mechanism 304 is used to abut against the top cover 2 to be clamped by the top cover clamping mechanism 301, so as to prevent the top cover 2 from being offset when clamping the top cover 2. The top cover positioning mechanism 304 ensures that the position of the top cover 2 relative to the top cover positioning mechanism 304 is fixed each time the top cover clamping mechanism 301 clamps the top cover 2, thereby ensuring that the position of the top cover 2 relative to the battery cell 1 is fixed, and also ensuring the abutment between the connecting piece 21 and the pole ear 11.

[0159] Optionally, the top cover positioning mechanism 304 may be a floating positioning device, a positioning pin, a positioning block, etc., which is not limited in this embodiment.

[0160] See also Figure 7 In some embodiments, the top cover positioning mechanism 304 includes: a top cover push block 3041, which is used to abut against the top cover 2; a connecting column 3042, one end of which is connected to the supporting vertical plate 3032, and the other end of the connecting column 3042 is movably connected to the top cover push block 3041, and the top cover push block 3041 can move relative to the connecting column 3042 along the first direction X; an elastic member 3043, which is sleeved on the connecting column 3042 and located between the top cover push block 3041 and the supporting vertical plate 3032.

[0161] The top cover push block 3041 is used to directly abut against the top cover 2. The shape and size of the top cover push block 3041 can be designed according to the contact surface between the top cover 2 and the top cover push block 3041 to ensure the contact and positioning effect between the top cover push block 3041 and the top cover 2. Optionally, the surface of the top cover push block 3041 can be specially treated (for example: anti-slip, wear-resistant and buffer coating, etc.) to reduce the damage to the top cover 2 caused by the top cover push block 3041 when abutting against the top cover 2.

[0162] One end of the connecting column 3042 is connected to the supporting plate 3032, and the other end of the connecting column 3042 is movably connected to the top cover push block 3041. The connecting column 3042 is arranged between the supporting plate 3032 and the top cover push block 3041, and is used to ensure the position of the top cover push block 3041 along the second direction Z and the third direction Y. The connecting column 3042 and the top cover push block 3041 are movably connected, and the top cover push block 3041 can move relative to the connecting column 3042 along the first direction X to buffer the force generated when the top cover push block 3041 contacts the top cover 2.

[0163] The elastic member 3043 is sleeved on the connecting column 3042 and is located between the top cover push block 3041 and the supporting upright plate 3032. The elastic member 3043 plays a role of buffering and resetting. When the top cover 2 is pushed into the clamping position, the elastic member 3043 is compressed by the top cover push block 3041. Optionally, the elastic member 3043 can be a spring, rubber, airbag, etc., which is not limited in this embodiment.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery cell flipping jig (100), characterized in that: include: Mounting seat (01); A battery cell clamping device (02) is arranged on the mounting seat (01), the battery cell clamping device (02) comprising a flip bottom plate (201) and a battery cell clamping mechanism (202) arranged on the flip bottom plate (201), the flip bottom plate (201) is used to carry the battery cell (1), and the battery cell clamping mechanism (202) is used to clamp the battery cell (1); A top cover positioning device (03), the top cover positioning device (03) comprising a top cover clamping mechanism (301) and a top cover driving mechanism (302), the top cover clamping mechanism (301) being used to clamp the top cover (2), and the top cover driving mechanism (302) being used to drive the top cover clamping mechanism (301) to move along a first direction so as to move the top cover (2) closer to or farther away from a portion of the battery cell (1) to be welded; A turning device (04), the turning device (04) is used to drive the battery core clamping device (02) and the top cover positioning device (03) to turn over.

2. The battery cell flipping jig (100) according to claim 1, characterized in that: The mounting seat (01) comprises: Installing the base plate (101); Two mounting uprights (102), the two mounting uprights (102) are respectively connected to two sides of the mounting base (101) along the first direction, the battery cell clamping device (02) is located between the two mounting uprights (102), and the flipping device (04) is arranged on the mounting uprights (102).

3. The battery cell flipping jig (100) according to claim 1, characterized in that: The flipping device (04) is arranged on the mounting seat (01), the flipping device (04) is connected to the battery core clamping device (02), and the flipping device (04) comprises: A turning mechanism (401), the turning mechanism (401) being connected to the turning bottom plate (201), and the turning mechanism (401) being able to controllably drive the turning bottom plate (201) to turn over; A locking mechanism (402), wherein the locking mechanism (402) is capable of locking and unlocking the flipping mechanism (401).

4. The battery cell flipping jig (100) according to claim 3, characterized in that: The turning device (04) further comprises: at least two first position-limiting buffer mechanisms (403), wherein the first position-limiting buffer mechanisms (403) are arranged on the mounting seat (01), the first position-limiting buffer mechanisms (403) extend along the second direction, and at least two first position-limiting buffer mechanisms (403) are arranged at intervals along the third direction and have a height difference in the second direction, and the second direction and the third direction all intersect with the first direction; Each of the first position-limiting buffer mechanisms (403) is located on the flipping path of the flipping bottom plate (201), at least one of the first position-limiting buffer mechanisms (403) is used to abut against one side of the flipping bottom plate (201), and at least one of the first position-limiting buffer mechanisms (403) is used to abut against the other side of the flipping bottom plate (201).

5. The battery cell flipping jig (100) according to claim 4, characterized in that: The first position limiting buffer mechanism (403) comprises: A buffer member (4031) is disposed on the mounting seat (01) and extends along the second direction; A limiting member (4032) is arranged on the mounting seat (01) and extends along the second direction, and a free end of the limiting member (4032) is lower than a free end of the buffer member (4031).

6. The battery cell flipping jig (100) according to claim 3, characterized in that: The turning mechanism (401) comprises: A first driving assembly (4011), arranged on the mounting seat (01); A rotating shaft (4012) passes through the mounting seat (01) and is connected to the flip base plate (201); A first transmission component (4013), wherein the first transmission component (4013) is connected to the first driving component (4011) and the rotating shaft (4012), and the rotating shaft (4012) is driven by the first transmission component (4013) to rotate so as to drive the flip base plate (201) to flip.

7. The battery cell flipping jig (100) according to claim 6, characterized in that: The first transmission assembly (4013) comprises: A rack (40131) is movably disposed on the mounting seat (01), and the rack (40131) is capable of moving along a third direction under the drive of the first driving component (4011), and the third direction intersects with the first direction; The gear (40132) is connected to the rotating shaft (4012), and the gear (40132) is rotatably arranged on the mounting seat (01). The gear (40132) can mesh with the rack (40131), and the gear (40132) can rotate following the movement of the rack (40131).

8. The battery cell flipping jig (100) according to claim 7, characterized in that: The first driving component (4011) comprises: A first guide rail (40111) is arranged on the mounting seat (01), and the first guide rail (40111) extends along the third direction; The first slider (40112) is movably disposed on the first guide rail (40111); the first slider (40112) can slide along the first guide rail (40111) in a controllable manner; and the first slider (40112) is connected to the rack (40131).

9. The battery cell flipping jig (100) according to claim 8, characterized in that: The turning device (04) further comprises: an adapter plate (404), the adapter plate (404) being arranged on the first slider (40112), the adapter plate (404) being capable of driving the first slider (40112) to move along a third direction, and the adapter plate (404) comprising a limiting portion (404a); At least two second position limiting buffer mechanisms (405), the at least two second position limiting buffer mechanisms (405) are arranged at intervals along the third direction, and the two second position limiting buffer mechanisms (405) are respectively located on both sides of the position limiting portion (404a).

10. The battery cell flipping jig (100) according to claim 9, characterized in that: The locking mechanism (402) comprises: A locking member (4021) is disposed on the adapter plate (404), and the locking member (4021) is capable of loosening or clamping the first guide rail (40111).

11. The battery cell flipping jig (100) according to any one of claims 1 to 10, characterized in that: The battery core clamping mechanism (202) further comprises: A rotary clamping cylinder (2021) is arranged on the flip bottom plate (201); A clamping piece (2022), the clamping piece (2022) being arranged on the rotating clamping cylinder (2021), and the clamping piece (2022) being able to rotate and approach and move away from the flip base plate (201) under the drive of the rotating clamping cylinder (2021) to clamp or release the battery cell (1).

12. The battery cell flipping jig (100) according to any one of claims 1 to 10, characterized in that: The top cover positioning device (03) is arranged on the battery core clamping device (02), and the top cover positioning device (03) comprises: A mounting bracket (303), the mounting bracket (303) comprising a mounting seat (3031) and a supporting upright plate (3032) movable relative to the mounting seat (3031), the mounting seat (3031) being arranged on the flip bottom plate (201), the top cover clamping mechanism (301) being arranged on the supporting upright plate (3032), and the top cover driving mechanism (302) being connected to the supporting upright plate (3032); The supporting upright plate (3032) has a first position and a second position spaced apart along the first direction relative to the mounting seat (3031), and the top cover driving mechanism (302) is capable of driving the supporting upright plate (3032) to reciprocate between the first position and the second position; When the supporting upright plate (3032) is located at the first position, the top cover (2) is close to the position of the battery cell (1) to be welded, and when the supporting upright plate (3032) is located at the second position, the top cover (2) is far away from the position of the battery cell (1) to be welded.

13. The battery cell flipping jig (100) according to claim 12, characterized in that: The top cover clamping mechanism (301) comprises: Two clamping members (3011) are arranged at intervals along a third direction, the two clamping members (3011) are respectively used to clamp the top cover (2), and the third direction intersects with the first direction; A second driving component (3012) is arranged on the supporting upright plate (3032) and connected to the two clamping members (3011), and the second driving component (3012) is capable of driving the two clamping members (3011) to move away from each other so as to loosen the top cover (2); Two first resetting members (3013), wherein the first resetting members (3013) are connected to the clamping member (3011) and the mounting seat (3031), and the first resetting members (3013) are used to reset the two clamping members (3011) to move closer to each other, so that the two clamping members (3011) clamp the top cover (2).

14. The battery cell flipping jig (100) according to claim 13, characterized in that: Each of the clamping members (3011) is provided with a slot (30111a) on one side facing the top cover (2), and the slot (30111a) is used for position-limiting cooperation with the top cover (2).

15. The battery cell flipping jig (100) according to claim 12, characterized in that: The top cover driving mechanism (302) comprises: A third driving assembly (3021), arranged on the mounting seat (3031) and connected to the supporting upright plate (3032), the third driving assembly (3021) being capable of driving the supporting upright plate (3032) to move from the first position to the second position; A second resetting member (3022), the second resetting member (3022) is connected to the mounting seat (3031) and the supporting upright plate (3032), and the second resetting member (3022) is used to reset the supporting upright plate (3032) from the second position to the first position.

16. The battery cell flipping jig (100) according to claim 12, characterized in that: The top cover positioning device (03) further comprises: A top cover positioning mechanism (304) is arranged on the supporting upright plate (3032), and the top cover positioning mechanism (304) is used to abut against the top cover (2).

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