Battery processing device

Abstract

The present application relates to the technical field of battery assembly, and discloses a battery processing device. The battery processing device comprises a conveying mechanism, securing pressing mechanisms, and first rails. The conveying mechanism is used for conveying a cover plate and a battery cell; for each securing pressing mechanism, the securing pressing mechanism is located on the conveying mechanism and moves in a first direction along with the conveying mechanism, and the securing pressing mechanism is used for fixing the cover plate to the battery cell; for each first rail, the securing pressing mechanism is located on the side of the first rail facing the conveying mechanism, the securing pressing mechanism slides on the first rail, at least part of the first rail is inclined toward the conveying mechanism in the first direction, and at least part of the first rail is used for pushing the securing pressing mechanism to move toward the conveying mechanism. According to the battery processing device provided in the present application, by means of the cooperation effect of the securing pressing mechanism and the first rail, complex operations during securing the cover plate can be reduced, thereby improving the securing strength of the cover plate.

Description

Battery processing device

[0001] Cross Reference to Related Applications

[0002] The present application claims priority from the Chinese patent application No. 202420782889.2 filed on April 15, 2024 and entitled "Battery processing device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of battery assembly, in particular to a battery processing device. BACKGROUND

[0004] In recent years, lithium ion batteries have developed rapidly and are widely used in the field of new energy vehicles. In the production process of lithium ion batteries, a cover plate clamping process is needed. The cover plate clamping process is to clamp the cover plate with the battery body to form a complete battery. The main function of the cover plate clamping is to protect the internal structure and electrochemical reaction of the battery from the influence of the external environment, and also to prevent safety hazards such as short circuit and overcharge.

[0005] The existing lithium ion battery cover plate clamping device uses a large number of executive components to complete the cover plate clamping action, and the clamping strength of the lithium ion battery cover plate needs to be strengthened during the cover plate clamping process. Therefore, a secondary cover plate clamping is needed to strengthen the clamping strength, and the operation process is complex. SUMMARY

[0006] The present application provides a battery processing device, which can reduce the complex action during cover plate clamping and improve the clamping strength of the cover plate through the cooperation of the clamping mechanism and the first track.

[0007] In a first aspect, the present application provides a battery processing device for clamping a cover plate on a battery cell, the battery processing device comprising a conveying mechanism, a clamping mechanism and a first track. The conveying mechanism is configured to convey the cover plate and the battery cell. The clamping mechanism is located on the conveying mechanism and moves along a first direction with the conveying mechanism. The clamping mechanism is configured to fix the cover plate and the battery cell. The first track is located on a side of the first track facing the conveying mechanism. The clamping mechanism slides on the first track. At least part of the first track is inclined towards the conveying mechanism along the first direction. At least part of the first track is configured to push the clamping mechanism to move along a direction close to the conveying mechanism.

[0008] The battery processing device provided in the application can buckle the cover plate on the battery cell through the buckle mechanism and the first track. When at least part of the first track is inclined towards the transportation mechanism in the first direction, the first track can push the buckle mechanism to move in the direction close to the transportation mechanism. The first track can strengthen the buckling strength of the cover plate and the battery cell by exerting extrusion force on the buckle mechanism towards the cover plate during the buckling of the cover plate, so that the cover plate can be more stably buckled on the battery cell, and displacement or loosening of the cover plate caused by bumps or other external forces during the transportation process of the transportation mechanism can be avoided. In addition, a large number of executive components during the buckling of the cover plate are reduced, the production efficiency is improved, and the stability of the equipment is improved.

[0009] In a possible implementation, the first track includes a first track surface and a second track surface. The first track surface is configured to be arranged at a first distance from the battery cell, and the first distance gradually decreases in the first direction. The second track surface is configured to be arranged at a second distance from the battery cell, and the second distance remains unchanged in the first direction. The first direction is the transportation direction of the battery cell on the transportation mechanism.

[0010] The first track surface is arranged at a first distance from the battery cell, and the first distance gradually decreases in the first direction, so that the buckle mechanism moves towards the battery cell, which is beneficial to the buckling of the cover plate. The second track surface is arranged at a second distance from the battery cell, and the second distance remains unchanged in the first direction, so that the buckle mechanism moves towards the thickness direction of the battery cell, and the buckling position of the cover plate can be limited.

[0011] In a possible implementation, the buckle mechanism includes a first roller and a first moving piece. The first roller is configured to move along the first track. The first moving piece is located on the side of the first roller away from the first track. The first roller is configured to push the first moving piece to move in the direction away from the first track.

[0012] When the first roller moves along the first track surface in the first direction, the first distance gradually decreases, and the first track surface causes the buckle mechanism to gradually move towards the battery cell, so that the cover plate is buckled on the battery cell. When the first roller moves to the second track surface, the adjusting piece moves towards the battery cell under the driving of the first roller, so as to push the second moving piece to move towards the thickness direction of the battery cell. When the first roller moves to the third track surface, the third distance gradually increases, and the buckle mechanism moves away from the battery cell. The buckle mechanism is gradually reset and enters the next first track.

[0013] In a possible implementation, the buckling mechanism comprises an adjusting piece, the adjusting piece has a first adjusting surface and a second adjusting surface, the first adjusting surface has a first height from a top end of the adjusting piece, the second adjusting surface has a second height from the top end of the adjusting piece, and the first height is less than the second height. The two adjusting surfaces of the adjusting piece have different heights, and the position of the second moving piece can be adjusted in the thickness direction of the battery cell.

[0014] In a possible implementation, the buckling mechanism comprises a second moving piece, the second moving piece comprises a second roller and a second moving piece body, the second roller moves on the first adjusting surface and the second adjusting surface, and the second roller is configured to push the second moving piece body to move in the thickness direction of the battery cell. The second roller moves on the adjusting piece, and the second moving piece body can be driven to move, so that the thickness direction of the battery cell is limited.

[0015] In a possible implementation, the buckling mechanism further comprises a connecting piece, the connecting piece is configured to connect the first moving piece and the second moving piece.

[0016] In a possible implementation, the battery processing device further comprises a clamp, the clamp is located on the conveying mechanism, the clamp comprises a carrier plate, the carrier plate is configured to carry the battery cell and the cover plate, and the buckling mechanism is fixed to both ends of the carrier plate in a second direction, the second direction being perpendicular to the first direction. The cover plate is located between the battery cell and the buckling mechanism, and the buckling mechanism buckles the cover plate and the battery cell located on the carrier plate.

[0017] In a possible implementation, the clamp further comprises a clamping piece, the clamping piece is connected with the carrier plate, the number of the clamping piece is at least one, and the clamping piece is configured to clamp the battery cell. The clamping piece can keep the battery cell stable on the clamp.

[0018] In a possible implementation, the clamp further comprises a battery cell shell mechanism, the battery cell shell mechanism comprises a pushing piece and a battery cell shell, the pushing piece comprises a third roller and a push rod, the third roller is configured to move on a second track and drive the push rod to move in the first direction, the second track is located on a side of the clamp away from the buckling mechanism, and the battery cell shell is configured to be arranged on both sides of the battery cell in the first direction, and the push rod is configured to push the battery cell shell to move in the first direction.

[0019] When the third roller of the battery cell shell mechanism is not in contact with the second track, the battery cell shell mechanism is close to the side surface of the battery cell, and the relative position of the cover plate and the battery cell can be ensured. When the third roller moves on the second track, the third roller can push the battery cell shell to move in the width direction of the battery cell and away from the battery cell, so that a gap is generated between the cover plate and the battery cell, thereby facilitating the inclination of the cover plate.

[0020] In a possible implementation, the battery processing device further comprises a support plate and a tab folding mechanism, the tab folding mechanism and the first track are both fixed on the support plate, the tab folding mechanism is located at both ends of the clamp along the second direction, the tab folding mechanism and the first track are adjacently arranged along the first direction, and the clamping mechanism sequentially contacts the tab folding mechanism and the first track along the first direction. When the battery cell and the cover plate are transported to the tab folding mechanism, the tab folding mechanism applies a fold to the tab of the battery cell to bend the tab. Then the battery cell and the cover plate are transported to the first track, and the first track cooperates with the clamping mechanism to clamp the cover plate to the battery cell. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor based on these drawings.

[0022] FIG. 1 is a schematic diagram of a battery processing device provided by an embodiment of the present application;

[0023] FIG. 2 is a schematic diagram of the position relationship between the clamping mechanism and the first track provided by an embodiment of the present application;

[0024] FIG. 3 is a schematic diagram of the position relationship between the clamping mechanism and the first track provided by an embodiment of the present application;

[0025] FIG. 4 is a schematic diagram of the structure of the clamping mechanism in another direction provided by an embodiment of the present application;

[0026] FIG. 5 is a schematic diagram of the position relationship between the second roller and the adjusting member provided by an embodiment of the present application;

[0027] FIG. 6 is a schematic diagram of the structure of the clamp provided by an embodiment of the present application;

[0028] FIG. 7 is a schematic diagram of the structure of the battery cell shell mechanism provided by an embodiment of the present application;

[0029] FIG. 8 is a schematic diagram of the structure of the tab folding mechanism provided by an embodiment of the present application.

[0030] Explanation of reference signs: 10-battery processing device; 20-cell; 210-tab; 30-cover plate; 110-transport mechanism; 120-clamping mechanism; 121-first roller; 122-first moving piece; 123-second moving piece; 1231-second roller; 1232-body of second moving piece; 124-adjusting piece; 1241-first adjusting surface; 1242-second adjusting surface; 125-connecting piece; 126-roller fixing piece; 127-first spring; 130-first track; 131-first track surface; 132-second track surface; 133-third track surface; 140-clamp; 141-carrier plate; 142-clamping piece; 143-limiting piece; 144-cell shell mechanism; 1441-pushing piece; 1441a-third roller; 1441b-push rod; 1442-cell shell; 1443-third spring; 1444-limiting block; 150-supporting plate; 160-tab folding mechanism; 161-plate overturning piece; 162-first folding knife; 163-second folding knife; 164-cover plate limiting piece; 170-second track. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0032] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0034] It should be understood that the term "and / or" used herein is only to describe the same field of associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0035] It should be understood that "first", "second", etc. used in the present application are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying order.

[0036] In the description of the present application, the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0037] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, it can also be detachable connection, it can also be in contact connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The present application provides a battery processing device 10 for clamping a cover plate on a battery cell in the battery production process. The cover plate clamping process is to clamp the cover plate with the battery body to form a complete battery. The function of clamping the cover plate is mainly to protect the internal structure of the battery and the electrochemical reaction from the influence of the external environment, and also to prevent safety hazards such as short circuit and overcharge.

[0039] Referring to FIGS. 1 and 2, the battery processing device 10 includes a transport mechanism 110, a clamping mechanism 120 and a first track 130. The transport mechanism 110 is used to transport the cover plate 30, the battery cell 20 and the clamping mechanism 120. The clamping mechanism 120 is located on the transport mechanism 110 and moves along the first direction with the transport mechanism 110, and the clamping mechanism 120 is used to fix the cover plate 30 and the battery cell 20. In the embodiment of the present application, the transport mechanism 110 is a ring-shaped circulating transport mechanism, which can move in the first direction (the positive direction of the Y direction in FIG. 1) for transportation.

[0040] It can be understood that the transport mechanism 110 includes but is not limited to vertical ring-shaped transport mechanism and plane ring-shaped transport mechanism. The types of transport mechanism 110 include but are not limited to magnetic suspension transport mechanism, belt transport mechanism, chain transport mechanism and helical tooth transport mechanism, etc.

[0041] The clamping mechanism 120 is located on the side of the first track 130 facing the conveying mechanism 110, and the clamping mechanism 120 slides on the first track 130. At least a portion of the first track 130 is inclined toward the conveying mechanism 110 in the first direction, and at least a portion of the first track 130 is used to push the clamping mechanism 120 to move in the direction close to the conveying mechanism 110. The first track 130 has at least two, and the two first tracks 130 are located on both sides of the clamping mechanism 120. It can be understood that in some possible embodiments, the number of first tracks 130 can also be other numbers, which is not limited in the present application.

[0042] The cover plate 30 and the battery cell 20 are located on one side of the clamping mechanism 120, and the cover plate 30 is located between the battery cell 20 and the clamping mechanism 120. The clamping mechanism 120 pushes the cover plate 30 to move in the direction of the battery cell 20 (the positive direction of the Y direction in FIG. 1) to clamp the cover plate 30 on the battery cell 20.

[0043] The first track 130 is used to be inclined toward the battery cell 20 in the first direction (the positive direction of the Y direction in FIG. 1). The first track 130 is used to cooperate with the clamping mechanism 120 to clamp the cover plate 30 on the battery cell 20. Exemplarily, the battery processing device 10 provided in FIG. 1 is taken as an example to describe the cover clamping function of the device.

[0044] Referring to FIG. 1, the clamping mechanism 120 is provided with the first track 130 on one side, and the clamping mechanism 120 is located between the battery cell 20 and the first track 130. The clamping mechanism 120 and the first track 130 each have two. When the conveying mechanism 110 is conveyed in the first direction, the conveying mechanism 110 drives the clamping mechanism 120 to move together. The clamping mechanism 120 moves on the first track 130 in the direction of the conveying mechanism 110. The first track 130 is inclined toward the battery cell 20 in the first direction, and the first track 130 can exert a pressing force on the clamping mechanism 120 in the direction of the cover plate 30. The pressing force exerted by the first track 130 on the clamping mechanism 120 can ensure that the clamping mechanism 120 closely adheres to the cover plate 30 to complete the clamping cover plate action. The first track 130 cooperates with the clamping mechanism 120 to clamp the cover plate 30 on the battery cell 20 until entering the next process.

[0045] The battery processing device 10 provided in the application can buckle the cover plate 30 on the battery cell 20 by arranging the buckling mechanism 120 and the first track 130, and further apply extrusion force to the buckling mechanism 120 towards the cover plate 30 by the cooperation of the first track 130 and the buckling mechanism 120. After the cover plate 30 is buckled on the battery cell 20, the first track 130 can strengthen the buckling strength of the cover plate 30 and the battery cell 20, so that the cover plate 30 can be more stably buckled on the battery cell 20, and the cover plate 30 is prevented from being displaced or loosened due to bumps in the transportation process of the transportation mechanism 110 or other external forces. In addition, a large number of executive components in the buckling process of the cover plate are also reduced, the production efficiency is improved, and the stability of the equipment is improved.

[0046] In a possible implementation, referring to FIG. 1, the battery processing device 10 comprises a support plate 150, the support plate 150 passes through the center of the transportation mechanism 110, and the first track 130 is fixed on the support plate 150. Referring to FIG. 2, the first track 130 comprises a first track surface 131, a second track surface 132 and a third track surface 133, the first track surface 131 is arranged at a first distance L1 from the battery cell 20, the first distance L1 gradually decreases along a first direction (the positive direction of the Y direction in FIG. 2), the second track surface 132 is arranged at a second distance L2 from the battery cell 20, the second distance L2 remains unchanged along the first direction, and the third track surface 133 is arranged at a third distance L3 from the battery cell 20, the third distance L3 gradually increases along the first direction.

[0047] In a possible implementation, the buckling mechanism 120 comprises a first roller 121 and a first moving piece 122, the first roller 121 is used to move along the first track 130, and the first moving piece 122 is located on a side of the first roller 121 away from the first track 130, and the first roller 121 is used to push the first moving piece 122 to move away from the first track 130.

[0048] Referring to FIGS. 3 and 4, the buckling mechanism 120 comprises a first roller 121 and a first moving piece 122, the first roller 121 can be fixed on a roller fixing piece 126, and the roller fixing piece 126 and the first moving piece 122 can be connected through a first spring 127. The first moving piece 122 is located on a side of the first roller 121 away from the first track 130, that is, the first roller 121 is located between the first track 130 and the first moving piece 122.

[0049] When the buckling mechanism 120 moves to the first track 130 along with the conveying mechanism 110, the first track 130 first contacts the first roller 121 of the buckling mechanism 120, and the first track 130 moves the first roller 121 towards the direction of the battery cell 20 (the positive direction of the X direction in FIG. 3), the first roller 121 drives the roller fixing member 126 to move towards the direction of the battery cell 20, further, the roller fixing member 126 compresses the first spring 127, and the first spring 127 pushes the first moving member 122 to move towards the direction of the battery cell 20. The cover plate 30 is located between the first moving member 122 and the battery cell 20, and the first moving member 122 buckles the cover plate 30 on the battery cell 20 during the movement towards the battery cell 20.

[0050] In a possible implementation, referring to FIGS. 3 and 5, the buckling mechanism 120 further includes an adjusting member 124, and the adjusting member 124 is fixedly connected with the roller fixing member 126, so that the roller fixing member 126 can drive the adjusting member 124 to move during the movement. Referring to FIG. 5, the adjusting member 124 has a first adjusting surface 1241 and a second adjusting surface 1242, the first adjusting surface 1241 is away from the top end of the adjusting member 124 by a first height H1, and the first height H1 is the vertical distance from the top end of the adjusting member 124 to the first adjusting surface 1241. The second adjusting surface 1242 is away from the top end of the adjusting member 124 by a second height H2, and the second height H2 is the vertical distance from the top end of the adjusting member 124 to the second adjusting surface 1242. The first height H1 is less than the second height H2. For example, in FIG. 5, the first adjusting surface 1241 and the second adjusting surface 1242 form a structure similar to a step. During the movement of the first roller 121 on the first track 130, the adjusting member 124 can adjust the height of the buckling mechanism 120 in the direction perpendicular to the battery cell 20 (the opposite direction of the Z direction in FIG. 3), so that the buckling mechanism 120 can be better limited, and the cover plate 30 can be better buckled on the battery cell 20.

[0051] In a possible implementation, the buckling mechanism 120 further includes a second moving member 123, and the second moving member 123 includes a second roller 1231 and a second moving member body 1232. The second roller 1231 is located on the second moving member body 1232, for example, the second roller 1231 can be located at both ends of the second moving member body 1232. The second roller 1231 can drive the second moving member body 1232 to move. Specifically, the second moving member 123 is located between the first moving member 122 and the cover plate 30. The second roller 1231 can move on the first adjusting surface 1241 and the second adjusting surface 1242 of the adjusting member 124. The second roller 1231 is used to drive the second moving member body 1232 to move towards the thickness direction of the battery cell 20 (the opposite direction of the Z direction in FIG. 3).

[0052] Specifically, as the first roller 121 moves on the first track 130, the roller fixing member 126 drives the adjusting member 124 to move towards the direction of the battery cell 20. During the movement of the adjusting member 124 towards the direction of the battery cell 20, the second roller 1231 first moves on the first adjusting surface 1241 and then moves on the second adjusting surface 1242. The second adjusting surface 1242 is at a second height H2 from the top end of the adjusting member 124, which is greater than a first height H1 of the first adjusting surface 1241 from the top end of the adjusting member 124. There is a height difference between the second adjusting surface 1242 and the first adjusting surface 1241. When the second roller 1231 moves from the first adjusting surface 1241 to the second adjusting surface 1242, the second roller 1231 moves towards the thickness direction of the battery cell 20 (the opposite direction of the Z direction in FIG. 3), and the second roller 1231 drives the second moving member body 1232 to move towards the thickness direction of the battery cell 20 (the opposite direction of the Z direction in FIG. 3), so that the second moving member 123 is close to the battery cell 20 in the thickness direction of the battery cell 20, and can limit the buckling between the cover plate 30 and the battery cell 20.

[0053] In a possible implementation, referring to FIGS. 3 and 5, the first moving member 122 and the second moving member have a connecting member 125 therebetween, which is used to connect the first moving member 122 and the second moving member 123. In an embodiment, the connecting member 125 can be a second spring. When the second roller 1231 moves from the first adjusting surface 1241 to the second adjusting surface 1242, the second moving member body 1232 moves towards the thickness direction of the battery cell 20, and the second spring is in a stretched state. When the second roller 1231 moves from the second adjusting surface 1242 to the first adjusting surface 1241, the second moving member body 1232 moves towards the thickness direction of the battery cell 20, and the second spring is reset from the stretched state.

[0054] When the first roller 121 moves on the first track surface 131 in the first direction of the battery cell 20, the first distance L1 gradually decreases, and the first track surface 131 causes the clamping mechanism 120 to gradually move towards the battery cell direction (the opposite direction of the X direction in FIG. 2), so that the cover plate 30 is clamped on the battery cell 20. When the first roller 121 continues to move to the second track surface 132, the adjusting member 124 is driven by the first roller 121 to move towards the direction of the battery cell 20 (the X direction in FIG. 3), so that the second roller 1231 contacts the second adjusting surface 1242, and pushes the second moving member body 1232 to move in the thickness direction of the battery cell 20 (the opposite direction of the Z direction in FIG. 3). At this time, the battery cell 20 is limited in the X direction and the Z direction, which can ensure that the cover plate 30 is accurately clamped into the battery cell 20. When the first roller 121 moves to the third track surface 133, the third distance L3 gradually increases, and the clamping mechanism 120 moves away from the battery cell 20 (the X direction in FIG. 2), and the clamping mechanism 120 gradually resets and enters the next first track 130. The clamping mechanism 120 always moves on the first track 130, and the first track 130 exerts a pressing force on the clamping mechanism 120, so that the clamping mechanism 120 can always press the cover plate 30, and ensure that the cover plate 30 can be firmly clamped on the battery cell 20 until the next process.

[0055] In a possible implementation, referring to FIG. 1, the battery processing device 10 further comprises a clamp 140, which is located on the conveying mechanism 110. The clamp 140 comprises a carrier plate 141 for carrying the battery cell 20 and the cover plate 30. The clamping mechanism 120 is fixed to both ends of the carrier plate 141 in the second direction, which is perpendicular to the first direction.

[0056] Referring to FIG. 6, the clamp 140 comprises the clamping mechanism 120 for clamping the cover plate 30 on the battery cell 20. When the battery processing device 10 is working, the cover plate 30 is located between the battery cell 20 and the clamping mechanism 120, and the clamping mechanism 120 pushes the cover plate 30 to move towards the battery cell 20 to clamp the cover plate 30 on the battery cell 20. The clamping mechanism 120 is at least two, and in the embodiment of the present application, the number of clamping mechanisms 120 is two. The clamping mechanism 120 can be located at both ends of the clamp 140, and the two clamping mechanisms 120 can be symmetrically arranged at both ends of the clamp 140. The cover plate 30 is located between the battery cell 20 and the clamping mechanism 120. It can be understood that in some possible embodiments, the number of clamping mechanisms 120 can also be other numbers, and the clamping mechanism 120 can also be located at both ends and the middle of the clamp 140, which is not limited in the present application.

[0057] In a possible implementation, referring to FIG. 6, the clamp 140 further comprises a clamping member 142, the number of the clamping member 142 is at least one, the clamping member 142 is located on one side of the battery cell along the width direction (X direction in FIG. 6), and the clamping member 142 is used for clamping the battery cell 20. In the embodiment of the application, the clamping member 142 has two, which can make the clamping of the battery cell 20 on the clamping member 142 more stable.

[0058] In a possible implementation, the clamp 140 further comprises a limiting member 143, the limiting member 143 is located on the carrier plate 141, and the limiting member 143 is used for limiting the movement of the first moving member 122 towards the battery cell 20 (the opposite direction of the Y direction in FIG. 6). When the first moving member 122 contacts the limiting member 143, the first moving member 122 stops moving, and the second roller 1231 continues to move towards the battery cell 20 (the opposite direction of the Y direction in FIG. 6), so that the second roller 1231 can move on the first adjusting surface 1241 and the second adjusting surface 1242 of the adjusting member 124, and then push the second moving member body 1232 to move towards the thickness direction of the battery cell 20 (the opposite direction of the Z direction in FIG. 3).

[0059] In a possible implementation, the clamp 140 further comprises a battery cell shell mechanism 144, the battery cell shell mechanism 144 comprises a pushing member 1441 and a battery cell shell 1442. The pushing member 1441 comprises a third roller 1441a and a push rod 1441b, the third roller 1441a is used for moving on the second track 170 and driving the push rod 1441b to move along the first direction, and the second track 170 is located on the side of the clamp 140 away from the buckling mechanism 120; the battery cell shell 1442 is used for being arranged on both sides of the battery cell 20 along the first direction, and the push rod 1441b is used for pushing the battery cell shell 1442 to move along the first direction.

[0060] When the third roller 1441a is not in contact with the second track 170, the battery cell shell mechanism 144 is in a natural state. The third spring 1443 of the battery cell shell mechanism 144 provides power, and the limiting block 1444 provides a reference, so that the battery cell shell mechanism 144 is close to the side surface of the battery cell 20, and the relative position of the cover plate 30 and the battery cell 20 can be ensured. When the cover plate 30 is subjected to an external force, the cover plate 30 is subjected to the extrusion of the battery cell shell mechanism 144 along the width direction of the battery cell 20 (X direction in FIG. 7) towards the battery cell 20, and is not easy to overturn or tilt.

[0061] When the third roller 1441a moves on the second track 170, the push rod 1441b can be driven to move along the X direction in FIG. 7, and then the push rod 1441b drives the third spring 1443 to compress and push the cell shell 1442 to move along the width direction (the X direction in FIG. 7) of the cell 20 away from the cell 20. The cell shell 1442 is pushed by the push rod 1441b to generate a gap with the cover plate 30, thereby facilitating the inclination of the cover plate 30.

[0062] In a possible implementation, referring to FIGS. 1 and 8, the battery processing device 10 further includes a support plate 150, and a tab folding mechanism 160, the tab folding mechanism 160 and the first track 130 are both fixed on the support plate 150, the tab folding mechanism 160 is located at both ends of the clamp 140 along the second direction, and the tab folding mechanism 160 and the first track 130 are arranged adjacent to each other along the first direction, and the buckle mechanism 120 sequentially contacts the tab folding mechanism 160 and the first track 130 along the first direction. The tab folding mechanism 160 includes a cover plate overturning piece 161, a first folding knife 162, a second folding knife 163, and a cover plate limiting piece 164. The tab folding mechanism 160 is used for bending the tab 210 of the cell 20. The tab folding process refers to the bending operation of the tab in the battery production and processing, so that the bent tab can be attached to the battery shell, facilitating subsequent processing. In the embodiment of the application, the tab 210 of the cell 20 is located at the short side of the cell 20, and the cell 20 has two tabs 210.

[0063] The cover plate overturning piece 161 is used for moving along the thickness direction (the Z direction in FIG. 8) of the support plate 150, and the support plate 150 is used for inclining the cover plate 30. When the clamp 140 is transported to the tab folding mechanism 160, the cover plate overturning piece 161 of the tab folding mechanism 160 moves along the thickness direction (the Z direction in FIG. 8) of the support plate 150, and the cover plate overturning piece 161 can incline the cover plate 30.

[0064] The first folding knife 162 is arranged in the thickness direction of the support plate 150 and spaced apart from the cover plate 30, and the first folding knife 162 is used for moving along the thickness direction of the support plate 150. After the cover plate 30 is inclined by the cover plate overturning piece 161 along the positive direction of the Z direction in FIG. 8, the first folding knife 162 moves along the negative direction of the Z direction in FIG. 8, and the first folding knife 162 contacts the inclined cover plate 30, so that the inclined cover plate 30 is maintained at the position.

[0065] The second folding knife 163 is arranged obliquely relative to the support plate 150, and is used to bend the tab 210 of the battery cell 20. When the first folding knife 162 moves in the opposite direction of the Z direction in FIG. 8, the oblique cover plate 30 maintains the same position, and a gap is formed between the oblique cover plate 30 and the battery cell 20. The second folding knife 163 extends into the gap between the oblique cover plate 30 and the battery cell 20 along the direction of its oblique arrangement, and applies a fold to the tab 210, so as to bend the tab 210.

[0066] Further, the cover plate limiting member 143 moves in the positive direction of the X direction in FIG. 8, so as to maintain the oblique state of the cover plate 30. When the transport mechanism 110 drives the buckling mechanism 120 to move in the first direction, the buckling mechanism 120 cooperates with the first track 130, so as to gradually change the oblique cover plate 30 into a vertical state, and buckle on the battery cell 20.

[0067] The battery processing device 10 provided by the present application can simultaneously complete the tab folding and cover plate buckling processes of the battery cell 20, reduces the complex design of the actuator element, realizes the tab folding and cover plate buckling actions in the moving process by the continuous conveying of the transport mechanism, shortens the product production time, and improves the production efficiency. The clamp 140 does not need to be loosened in the whole production process, and the consistency of the position of the battery cell 20 in the production process is ensured, and the positioning work does not need to be repeatedly performed.

[0068] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A battery processing apparatus (10) for fastening a cover plate (30) to a battery cell (20), characterized in that, The utility model relates to a battery cell cover plate fixing device, comprising: a transport mechanism (110) for transporting the cover plate (30) and the battery cell (20); a clamping mechanism (120) located on the transport mechanism (110) and moving along a first direction with the transport mechanism (110), the clamping mechanism (120) being used for fixing the cover plate (30) and the battery cell (20); a first track (130) on one side of which the clamping mechanism (120) is located towards the transport mechanism (110), the clamping mechanism (120) sliding on the first track (130), at least part of the first track (130) being inclined towards the transport mechanism (110) along the first direction, at least part of the first track (130) being used for pushing the clamping mechanism (120) to move in a direction close to the transport mechanism (110).

2. The battery processing device (10) according to claim 1, characterized in that The first track (130) comprises a first track surface (131) and a second track surface (132) arranged adjacent along a first direction, the first track surface (131) being used for being arranged at a first distance from the battery cell (20), the first distance gradually decreasing along the first direction, the second track surface (132) being used for being arranged at a second distance from the battery cell (20), the second distance remaining unchanged along the first direction, the first direction being the transport direction of the clamping mechanism (120) on the transport mechanism (110).

3. The battery processing device (10) according to claim 2, characterized in that The clamping mechanism (120) comprises a first roller (121) and a first moving piece (122), the first roller (121) being used for moving along the first track (130), the first moving piece (122) being located on a side of the first roller (121) away from the first track (130), the first roller (121) being used for pushing the first moving piece (122) to move in a direction away from the first track (130).

4. The battery processing device (10) according to claim 3, characterized in that The clamping mechanism (120) comprises an adjusting piece (124), the adjusting piece (124) having a first adjusting surface (1241) and a second adjusting surface (1242), the first adjusting surface (1241) being at a first height from the top end of the adjusting piece (124), the second adjusting surface (1242) being at a second height from the top end of the adjusting piece (124), the first height being smaller than the second height.

5. The battery processing device (10) according to claim 4, characterized in that The clamping mechanism (120) comprises a second moving piece (123), the second moving piece (123) comprising a second roller (1231) and a second moving piece body (1232), the second roller (1231) moving on the first adjusting surface (1241) and the second adjusting surface (1242), the second roller (1231) being used for pushing the second moving piece body (1232) to move in the thickness direction of the battery cell (20).

6. The battery processing device (10) according to claim 5, characterized in that The clamping mechanism (120) further comprises a connecting piece (125) for connecting the first moving piece (122) and the second moving piece (123).

7. The battery processing device (10) according to any one of claims 1 to 6, characterized in that The battery processing device (10) further comprises a clamp (140) located on the conveying mechanism (110), the clamp (140) comprising a carrier plate (141) for carrying the battery cell (20) and the cover plate (30), the clamping mechanism (120) being fixed to both ends of the carrier plate (141) in a second direction perpendicular to the first direction.

8. The battery processing device (10) according to claim 7, characterized in that The clamp (140) further comprises a clamping piece (142) connected to the carrier plate (141), the number of clamping pieces (142) being at least one, the clamping piece (142) being used for clamping the battery cell (20).

9. The battery processing device (10) according to claim 8, characterized in that The clamp (140) further comprises a battery cell shell mechanism (144), the battery cell shell mechanism (144) comprising: a pushing piece (1441), the pushing piece (1441) comprising a third roller (1441a) and a push rod (1441b), the third roller (1441a) being used for moving on a second track (170) and driving the push rod (1441b) to move in the first direction, the second track (170) being located on the side of the clamp (140) away from the clamping mechanism (120); a battery cell shell (1442) for being arranged on both sides of the battery cell (20) in the first direction, the push rod (1441b) being used for pushing the battery cell shell (1442) to move in the first direction.

10. The battery processing apparatus (10) according to claim 7, characterized in that The battery processing device (10) further comprises a support plate (150) and a tab folding mechanism (160), the tab folding mechanism (160) and the first track (130) being fixed on the support plate (150), the tab folding mechanism (160) being located at both ends of the clamp (140) in the second direction, the tab folding mechanism (160) and the first track (130) being arranged adjacent in the first direction, and the clamping mechanism (120) sequentially contacting the tab folding mechanism (160) and the first track (130) in the first direction.

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