Battery cell edgefold forming jig

Abstract

The battery cell folding and forming jig comprises a bearing table, the upper surface of the bearing table is used for bearing a battery cell; the positioning block is located on one side of the bearing table; the forming assembly comprises an edge folding block and a rolling part, the edge folding block is installed on the side, opposite to the positioning block, of the bearing table, the top face of the edge folding block protrudes out of the upper surface of the bearing table, the top face of the edge folding block bears the sealing edge of the battery cell, and the rolling part moves relative to the side face of the edge folding block so as to roll the sealing edge; the positioning block, the bearing table and the edge folding block define a containing space used for containing a battery cell, the positioning block abuts against one side wall of the battery cell, and the edge folding block abuts against the other side wall of the battery cell so that edge folding forming can be conducted on the sealing edge. The battery cell flanging and forming jig can reliably perform flanging and forming on the sealing edge of the battery cell, and the forming effect and the production efficiency are improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of battery processing, and particularly relates to a cell hemming and forming jig. Background Art

[0002] In the process of producing soft-pack batteries, the cells are generally encapsulated by covering with aluminum-plastic film and thermoplastic molding. The side edges of the cells usually reserve aluminum-plastic film sealing edges. In the related art, generally, the cells are directly operated on a hard board. After the sealing edge is bent 180°, it is further bent 90° to make the hemming contact with the side wall of the cell. Subsequently, the adhesive tape is manually pasted on the edges of the two side walls of the cell, and the adhesive tape is manually smoothed along the folded edge to form a U shape, that is, the hemming encapsulation is completed. However, the existing operation process has low production efficiency, and the folded edge cannot be reliably smoothed, resulting in poor forming effect. Summary of the Utility Model

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cell hemming and forming jig that can reliably form the hemming of the sealing edge of the cell and improve the forming effect and production efficiency.

[0004] In a first aspect, the utility model provides a cell hemming and forming jig, including:

[0005] A carrier platform, the upper surface of which is used to carry the cell;

[0006] A positioning block located on one side of the carrier platform;

[0007] A forming assembly, the forming assembly includes a hemming block and a rolling member. The hemming block is installed on the side of the carrier platform opposite to the positioning block, and the top surface of the hemming block protrudes from the upper surface of the carrier platform. The top surface of the hemming block carries the sealing edge of the cell. The rolling member moves relative to the side surface of the hemming block to roll-press the sealing edge;

[0008] The positioning block, the carrier platform and the hemming block define an accommodating space for accommodating the cell. The positioning block abuts against one side wall of the cell, and the hemming block abuts against the other side wall of the cell to form the hemming of the sealing edge.

[0009] As an optional solution, it further includes: a propulsion mechanism, the propulsion mechanism is drivingly connected to the positioning block. In a first direction, the propulsion mechanism drives the positioning block to move towards or away from the carrier platform to adjust the size of the accommodating space. The first direction is perpendicular to the side wall of the cell.

[0010] As an optional solution, it further includes a limiting structure. The limiting structure includes a limiting groove and a fastening member. The limiting groove is opened on the hemming block and extends along a second direction. The fastening member is fixedly connected to the carrier platform through the limiting groove to adjust and fix the position of the hemming block in the second direction. The second direction is perpendicular to the upper surface of the carrier platform and perpendicular to the first direction.

[0011] As an alternative solution, it further includes a roller mechanism. The roller mechanism is disposed on one side of the carrier table, and the roller mechanism and the positioning block are located on the same side. The rolling surface of the roller mechanism is lower than the upper surface of the carrier table, and the rolling surface can approach or move away from the lower surface of the battery cell.

[0012] In a state where the battery cell is accommodated inside the accommodation space, the sealing edge of one side wall of the battery cell is in tight contact with the positioning block. In the first direction, one side wall of the battery cell extends out of the upper surface of the carrier table. When the rolling surface approaches and is in tight contact with the lower surface of the battery cell, the sealing edge of one side wall of the battery cell can be formed into a folded edge.

[0013] As an alternative solution, the roller mechanism further includes a roller and a sliding assembly connected in a sliding manner. The sliding assembly drives the roller to move along the first direction, so that the rolling surface approaches or moves away from the lower surface of the battery cell.

[0014] As an alternative solution, the roller mechanism further includes a lifting structure. The lifting structure is in transmission connection with the roller and is used to drive the rolling surface of the roller to contact or separate from the battery cell.

[0015] As an alternative solution, the lifting structure includes a mounting seat. The mounting seat has an inclined support surface, and in the second direction, the mounting height of the first end of the mounting seat is higher than the mounting height of the second end of the mounting seat; wherein, the first end is the end close to the carrier table in the first direction, and the second end is the end far from the carrier table in the first direction.

[0016] As an alternative solution, the sliding assembly includes a slide rail and a slider. The slide rail is disposed on the mounting seat, and the slide rail extends along the inclined support surface in the first direction. The slider is slidably connected to the slide rail, and the slider is connected to the roller and drives the roller to move along the slide rail, so that the rolling surface approaches or moves away from the lower surface of the battery cell.

[0017] As an alternative solution, the roller mechanism further includes a limiting member. The limiting member is detachably mounted on the mounting seat, and the limiting member is used to limit the roller so that the position of the roller is fixed.

[0018] As an alternative solution, it further includes a mounting base plate. The carrier table and / or the propulsion mechanism can be adjustably mounted on the mounting base plate;

[0019] As an alternative solution, the carrier table is detachably connected to the mounting base plate. In the first direction, the carrier table can move towards or away from the positioning block to adjust the size of the accommodation space; and / or,

[0020] The propulsion mechanism is detachably connected to the mounting base plate. In the first direction, the propulsion mechanism can move towards or away from the carrier table to adjust the size of the accommodation space.

[0021] The edge folding and forming fixture for the battery cell of the present utility model defines an accommodation space through a bearing table, a positioning block and a folding block for accommodating the battery cell. The top surface of the folding block abuts against the sealing edge of the battery cell, and the positioning block abuts against the side wall of the battery cell, which is beneficial to stably limit the position of the battery cell. And under the action of an external force, the rolling member rolls downward along the position where the sealing edge abuts against the folding block to fold the sealing edge. After attaching the adhesive tape to the surface of the battery cell and the sealing edge after folding, the battery cell is rotated 180 degrees, and then under the action of an external force, the positioning block tightly contacts the folded sealing edge, realizing reliable edge folding, which is beneficial to reducing the volume of the battery cell. At this time, the edge of the adhesive tape is bent towards the lower surface of the battery cell, and the adhesive tape is smoothed and closely attached to the battery cell, thus completing the edge folding and forming of the sealing edge of the battery cell. The edge folding and forming fixture of the present utility model has a simple structure, convenient operation, high edge folding efficiency, and can reliably press and fold the edge. On the one hand, it is beneficial to improve the edge folding and forming efficiency and the yield of edge folding and forming. On the other hand, it is beneficial to reduce the volume of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 is a schematic structural diagram of an edge folding and forming fixture for a battery cell according to an embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram of a battery cell according to an embodiment of the present application;

[0025] Figure 3 is a schematic structural diagram of an edge folding and forming fixture for a battery cell according to an embodiment of the present application with the positioning block and the push rod removed;

[0026] Figure 4 is a schematic structural diagram of a roller mechanism in an edge folding and forming fixture for a battery cell according to an embodiment of the present application;

[0027] Figure 5 is a schematic structural diagram of a rolling member in an edge folding and forming fixture for a battery cell according to an embodiment of the present application.

[0028] In the figure,

[0029] 100, edge folding and forming fixture for battery cell;

[0030] 110, mounting base plate, 111, handle base, 112, mounting seat, S1, inclined support surface, 113, fixed base;

[0031] 10, bearing table;

[0032] 20, positioning block;

[0033] 30, folding block, 31, limiting groove;

[0034] 40. Rolled part;

[0035] 50. Operating handle, 51. Rotating shaft, 52. Connecting piece, 53. Pushing rod;

[0036] 60. Slide rail, 61. Slide block, 62. Roller; 70. Battery cell, 71. Sealing edge. Detailed implementation manners

[0037] The present application will be further described in detail below in conjunction with embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model.

[0038] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the embodiments.

[0039] An embodiment of the present application provides a battery cell hemming and forming jig 100, as Figures 1-5 shown, including:

[0040] A carrier table 10, the upper surface of the carrier table is used to carry the battery cell 70;

[0041] A positioning block 20, the positioning block 20 is located on one side of the carrier table 10;

[0042] A forming assembly, the forming assembly includes a hemming block 30 and a rolled part 40. The hemming block 30 is installed on the side of the carrier table 10 opposite to the positioning block 20, and the top surface of the hemming block 30 protrudes above the upper surface of the carrier table 10. The top surface of the hemming block 30 carries the sealing edge 71 of the battery cell 70. The rolled part 40 moves relative to the side surface of the hemming block 30 to roll the sealing edge 71;

[0043] The positioning block 20, the carrier table 10 and the hemming block 30 define an accommodating space for accommodating the battery cell 70. The positioning block 20 abuts against one side wall of the battery cell 70, and the hemming block 30 abuts against the other side wall of the battery cell 70 to perform hemming and forming on the sealing edge 71.

[0044] It should be noted that the battery cell 70 in the embodiment of the present application refers to the battery cell after the battery cell main body is encapsulated by an aluminum-plastic film, and the sealing edge 71 of the battery cell 70 refers to the area remaining on the side of the battery cell 70 after the aluminum-plastic film is heat-sealed.

[0045] Among them, as Figure 1 shown, the upper surface of the carrier table 10 refers to the surface for carrying the battery cell, and the top surface of the hemming block 30 refers to the surface parallel to and close to the upper surface of the carrier table 10 in the Z direction.

[0046] It can be understood that the carrier 10 is mainly used to carry the battery cell 70. The battery cell 70 is placed on the carrier 10, and the entire area of the large surface of the battery cell 70 can be in contact with the surface of the carrier 10. Of course, it is also possible that part of the large surface of the battery cell 70 is in contact with the surface of the carrier 10, which is determined according to actual processing requirements. In actual production and processing, the battery cell 70 is placed on the carrier 10, and the sealing edge 71 is bent by the rolling member 40 at the position of the folding block 30 to form the sealing edge of the first state. There is no need to fix the battery cell with the positioning block 20, and the battery cell can be fixed by operating The operator can press and fix the battery cell; of course, in some implementation processes, the end face of the positioning block 20 that is away from the supporting platform 10 does not exceed the plane where the sealing edge 71 on the side wall of the battery cell 70 is located, thereby avoiding interference between the positioning block 20 and the unbent sealing edge 71, which is conducive to ensuring that the positioning block 20 is reliably in contact with the side wall of the battery cell 70, and there is no need for an operator to fix the battery cell; of course, an avoidance structure can also be provided on the positioning block 20 to avoid the unbent sealing edge 71 while reliably fixing the battery cell 70, without the need for an operator to fix the battery cell, thus freeing up manual labor.

[0047] Among them, the positioning block 20 can be located outside the supporting platform 10 independently of the supporting platform 10, and of course the positioning block 20 can also be located on the surface of the supporting platform 10; and the position of the positioning block 20 can be fixed or the positioning block 20 can be moved toward or away from the supporting platform 10. The embodiment of the present application does not limit the specific setting method of the positioning block 20, as long as the positioning block 20 has a surface facing the supporting platform 10 and can be in close contact with the side wall of the battery cell 70, the battery cell 70 can be limited and fixed while the sealing edge 71 after the folding edge is extruded into shape.

[0048] It can also be understood that the forming assembly is mainly used to fold the sealing edge 71 of the battery cell 70. The forming assembly includes a folding block 30 and a rolling member 40. The folding block 30 is located on the side of the carrier 10 opposite to the positioning block 20. The protruding end surface of the folding block 30 abuts against the sealing edge 71 of the battery cell 70, so as to provide support for the sealing edge 71 of the battery cell 70. The rolling member 40 is used to apply pressure to the sealing edge 71 of the battery cell 70 so that it bends in a predetermined direction. Of course, in some embodiments, the rolling member 40 can also be used to roll and smooth the attached adhesive tape to further complete the folding of the sealing edge 71 of the battery cell 70.

[0049] It should be noted that the rolling member 40 can be any existing roller, stick or pressure roller; and the rolling member 40 can be held by an operator to apply pressure. Of course, the rolling member 40 can also be driven by a driving member (such as but not limited to a motor or a cylinder, etc.) to apply pressure. The embodiments of the present application do not make specific limitations on this, as long as it can ensure that pressure is applied to the sealing edge 71 of the battery cell 70 to cause it to bend.

[0050] For example,Figure 1 As shown, during the actual production and processing, the battery cell 70 is placed in the accommodation space defined by the positioning block 20, the bearing platform 10, and the hemming block 30. Both sides of the battery cell 70 with the sealing edge 71 extend out of the surface of the bearing platform 10, such that one side of the sealing edge 71 of the battery cell 70 abuts against the end face of the hemming block 30 protruding from the surface of the bearing platform 10. The operating roller pressing member 40 starts from the area where the sealing edge 71 of the battery cell 70 abuts against the hemming block 30 and rolls down the sealing edge 71 of the battery cell 70 along the height direction of the hemming block 30 (such as Figure 1 the Z direction in the figure), causing the sealing edge 71 of the battery cell 70 to bend. The bending angle of the sealing edge 71 here is less than 90 degrees. The operator attaches adhesive tape to both the upper surface of the battery cell 70 and the bent sealing edge 71, manually smooths or rolls and smooths the adhesive tape on the upper surface, and then rotates the battery cell 70 by 180 degrees, such that the bent side of the sealing edge 71 abuts tightly against the positioning block 20, and the sealing edge 71 on the other side of the battery cell 70 abuts against the hemming block 30. The same bending and hemming are performed on the sealing edge 71 on the other side of the battery cell 70. The positioning block 20 presses the bent sealing edge 71. At this time, the hem of the sealing edge 71 is perpendicular to the adhesive tape and extends downward at 90 degrees. The operating roller pressing member 40 or manually attaches the adhesive tape to the lower surface of the battery cell 70, and thus the hemming of the sealing edge 71 is completed.

[0051] The battery cell hemming and forming fixture 100 of the embodiment of the present application solves the problems in the prior art of low production efficiency during the operation process and poor forming effect due to the inability to reliably smooth the hemming after folding.

[0052] The battery cell hemming and forming fixture 100 of the embodiment of the present application defines an accommodation space through the bearing platform 10, the positioning block 20, and the hemming block 30 for accommodating the battery cell 70. The end face of the hemming block 30 protruding from the bearing platform 10 abuts against the sealing edge 71 of the battery cell 70, and the positioning block 20 abuts against the side wall of the battery cell 70, which is beneficial for stably limiting the position of the battery cell 70. And under the action of an external force, the roller pressing member 40 rolls down along the position where the sealing edge 71 abuts against the hemming block 30 to fold the sealing edge 71. After attaching the adhesive tape to the surface of the battery cell 70 and the folded sealing edge 71, the battery cell 70 is rotated by 180 degrees, and then under the action of an external force, the positioning block 20 abuts tightly against the folded sealing edge 71, realizing reliable hemming, which is beneficial for reducing the volume of the battery cell 70. At this time, the edge of the adhesive tape is bent towards the lower surface of the battery cell 70, and the adhesive tape is smoothed and closely attached to the battery cell 70, thus completing the hemming and forming of the sealing edge 71 of the battery cell 70.

[0053] The battery cell hemming and forming fixture of the present utility model has a simple structure, convenient operation, high hemming efficiency, and can reliably press and fold the edge. On the one hand, it is beneficial for improving the hemming and forming efficiency and the yield of hemming and forming. On the other hand, it is beneficial for reducing the volume of the battery cell 70.

[0054] As an implementable way, the positioning block 20 can move towards or away from the carrier 10 to adjust the size of the accommodating space.

[0055] It can be understood that when the positioning block 20 moves towards the carrier 10, the accommodating space decreases, which is beneficial for applying to the small-sized battery cell 70; when the positioning block 20 moves away from the carrier 10, the accommodating space increases, which is beneficial for applying to the large-sized battery cell 70.

[0056] Among them, the movement of the positioning block 20 can be achieved by manually applying power to the positioning block 20 to make the positioning block 20 move towards or away from the carrier 10; of course, the movement of the positioning block 20 can also be achieved by other power components (such as but not limited to a drive motor, etc.), as long as it can ensure the movement of the positioning block 20, and this embodiment does not make any limitations in this regard.

[0057] This embodiment is beneficial for adjusting the size of the accommodating space, and thus beneficial for accommodating various different-sized battery cells 70 and folding the sealing edges 71 of various different-sized battery cells 70.

[0058] In some embodiments, the battery cell folding and forming fixture 100 further includes a propulsion mechanism. The propulsion mechanism is drivingly connected to the positioning block 20. In the first direction, the propulsion mechanism drives the positioning block 20 to move towards or away from the carrier 10 to adjust the size of the accommodating space, and the first direction is the direction perpendicular to the side wall of the battery cell (such as Figure 1 the X direction in

[0059] In some embodiments, the propulsion mechanism includes a driving member and a transmission member drivingly connected to the driving member. The transmission member is drivingly connected to the positioning block 20, and the driving member drives the transmission member to drive the positioning block 20 to move towards or away from the carrier 10.

[0060] Among them, the driving member can be but not limited to a machine that can provide power (such as a drive motor or a cylinder, etc.), a control handle 50, etc.; the transmission member can be but not limited to a connecting rod, a transmission shaft, etc., and the embodiments of the present application do not make specific limitations in this regard.

[0061] In this embodiment, it is beneficial to reliably drive the movement of the positioning block 20, and thus adjust the size of the accommodating space.

[0062] As an implementable way, the transmission member includes a propulsion rod 53. One end of the propulsion rod 53 is connected to the positioning block 20, and the driving member includes a control handle 50. The other end of the propulsion rod 53 is connected to the control handle 50.

[0063] It can be understood that the operating handle 50 can be arranged in the area on one side of the carrying platform 10. The operator provides power by operating the operating handle 50, and the operating handle 50 drives the push rod 53 to drive the positioning block 20 to move. One end of the push rod 53 is connected to the positioning block 20 by any connection method, such as but not limited to screwing, welding, etc.; in a preferred embodiment, one end of the push rod 53 is connected to the positioning block 20 by a detachable connection method, which is beneficial to facilitate the disassembly and assembly of the push rod 53 and the positioning block 20, so as to facilitate maintenance; the other end of the push rod 53 can be connected to the operating handle 50 by any method, such as but not limited to welding, screwing or hinging, etc., as long as the operating handle 50 can reliably drive the push rod 53 to drive the positioning block 20 to move.

[0064] In some embodiments, the hemming edge forming jig further includes a handle base 111. The operating handle 50 is installed on the handle base 111, and a rotating shaft 51 is arranged at the connection between the operating handle 50 and the handle base 111 to facilitate the rotation of the operating handle 50. Moreover, a support area is also arranged on the handle base 111. One end of the push rod 53 extends into the support area and then is connected to the operating handle 50, which is beneficial to improve the moving stability of the push rod 53 and avoid the push rod 53 from shaking in other directions.

[0065] In some embodiments, the transmission member further includes a connecting member 52. One end of the connecting member 52 is hinged to the push rod 53, and the other end of the connecting member 52 is hinged to the operating handle 50.

[0066] The connecting member 52 in this embodiment is beneficial to improve the stability and flexibility of the operating handle 50 driving the push rod 53. The operator's operation is simple and labor-saving, and at the same time, the moving stability of the push rod 53 is ensured.

[0067] As a realizable way, the hemming block 30 can move along the height direction of the carrying platform 10.

[0068] It can be understood that the hemming block 30 can move along the height direction of the carrying platform 10 under the operation of the operator. Of course, the hemming block 30 can also move along the height direction of the carrying platform 10 under the drive of a driving member. For example but not limited to, the hemming block 30 is drivingly connected to the output shaft of a driving motor, and the driving motor drives the hemming block 30 to move.

[0069] In practical applications, a lifting mechanism can also be arranged on the side wall of the carrying platform 10, such as but not limited to a ball screw and a driving motor. The hemming block 30 is cooperatively installed on the ball screw, and the driving motor drives the ball screw to rotate, thereby driving the hemming block 30 to move; of course, a guiding structure can also be arranged on the side wall of the carrying platform 10, such as but not limited to a slide rail. The hemming block 30 is cooperatively installed on the slide rail, and the hemming block 30 moves along the length direction of the slide rail.

[0070] In this embodiment, through the movement of the hemming block 30, it is beneficial to be compatible with various sizes of battery cells 70. Since the sealing edges 71 of battery cells 70 with different sizes are located at different positions on the side wall of the battery cell 70, therefore, through the movement of the hemming block 30, on the one hand, it is beneficial to ensure that the hemming block 30 abuts against the sealing edge 71 of the battery cell 70, and on the other hand, the hemming block 30 cooperates with the bearing table 10 and the positioning block 20 to reliably limit the position of the battery cell 70.

[0071] In some embodiments, the battery cell hemming and forming jig further includes a limiting structure. The limiting structure is used to limit and fix the position of the hemming block 30 when the hemming block 30 moves to a position where it abuts against the sealing edge 71 of the battery cell 70, to prevent the hemming block 30 from slipping and being unable to reliably abut against the sealing edge 71 of the battery cell 70, thereby being beneficial to ensure the reliable hemming and forming of the sealing edge 71 of the battery cell 70.

[0072] As an implementable manner, the limiting structure includes a limiting groove 31 and a fastening member (not shown in the figure). The limiting groove 31 is opened on the hemming block 30, and the limiting groove 31 extends along the second direction ( Figure 1 the X direction in the figure), and the fastening member is fixedly connected to the bearing table 10 through the limiting groove 31 to adjust and fix the position of the hemming block 30 in the second direction. The second direction is perpendicular to the upper surface of the bearing table and perpendicular to the first direction.

[0073] It can be understood that the limiting groove 31 can be a long hole, a kidney-shaped hole or a long groove opened on the hemming block 30, and the embodiments of the present application do not make specific limitations on this; the fastening member can be but is not limited to a nut and a threaded shaft with threads in at least part of the area. When the hemming block 30 moves to a position where it abuts against the sealing edge 71 of the battery cell 70, the threaded shaft passes through the limiting groove 31 and contacts the side wall of the bearing table 10. By tightening the nut, the end of the threaded shaft is tightly abutted against the side wall of the bearing table 10, and the position of the hemming block 30 is fixed.

[0074] The limiting structure of this embodiment is simple and easy to implement, and can reliably limit and fix the hemming block 30 to ensure reliable contact between the hemming block 30 and the sealing edge 71 of the battery cell 70.

[0075] In some other embodiments, the battery cell hemming and forming jig further includes a roller mechanism. The roller mechanism is arranged on one side of the bearing table 10, and the roller mechanism and the positioning block 20 are located on the same side. The rolling surface of the roller mechanism is lower than the upper surface of the bearing table 10, and the rolling surface can be close to or away from the lower surface of the battery cell.

[0076] When the battery cell 70 is accommodated inside the accommodating space, the sealing edge 1 of one side wall of the battery cell 70 is in close contact with the positioning block 20. In the first direction, one side wall of the battery cell 70 extends out of the upper surface of the supporting platform 10. When the rolling surface approaches the lower surface of the battery cell 70 and is in close contact, the sealing edge 71 of the one side wall of the battery cell 70 can be folded into shape.

[0077] It should be noted that the lower surface of the battery cell 70 refers to the surface of the battery cell 70 facing the carrier platform 10 , and the upper surface of the battery cell 70 refers to the surface of the battery cell 70 away from the carrier platform 10 .

[0078] It can be understood that the roller mechanism and the positioning block 20 are located on the same side. After the battery cell 70 is located inside the accommodating space, the side wall of the battery cell 70 extends out of the surface of the supporting platform 10, so as to facilitate the contact between the lower surface of the battery cell 70 and the rolling surface, which is beneficial for the positioning block 20 to squeeze the bent sealing edge 71 and shape the folded edge, so that the bending angle of the adhesive tape is 90 degrees with the folded edge. The roller mechanism is arranged below the positioning block 20, which is beneficial for the rolling surface to contact with the lower surface of the battery cell 70 and smooth the attached adhesive tape.

[0079] The roller mechanism of this embodiment is conducive to further shaping of the sealing edge 71 after folding, and is also conducive to attaching and smoothing the adhesive tape, thereby improving the folding and shaping effect of the sealing edge 71.

[0080] As an achievable method, Figure 3 and 4 As shown, the roller mechanism includes a roller 62 and a sliding assembly that are slidably connected. The sliding assembly drives the roller 62 to move along a first direction so that the rolling surface approaches or moves away from the lower surface of the battery cell 70 .

[0081] Among them, the roller 62 can be but is not limited to a roller, a pressure roller, etc.; the rolling surface of the roller 62 contacts the lower surface of the battery cell 70, and the rolling surface of the roller 62 can be used to attach the adhesive tape to the lower surface of the battery cell 70 and smooth the adhesive tape; in some other embodiments, after the rolling surface of the roller 62 contacts the lower surface of the battery cell 70, it can also move back and forth on the lower surface of the battery cell 70 to improve the attachment effect of the adhesive tape and ensure the folding forming effect.

[0082] As a feasible manner, the roller mechanism further includes a lifting structure, which is transmission-connected to the roller 62 and is used to drive the rolling surface of the roller 62 to contact or separate from the battery cell 70 .

[0083] It can be understood that the lifting structure can be any kind of component, such as but not limited to the combination of a guide rail and a slider 61, a ball screw or a pulley. This embodiment does not make specific limitations on this, as long as it can drive the rolling surface of the roller 62 to contact or separate from the lower surface of the battery cell 70.

[0084] The lifting structure of this embodiment is conducive to reliably driving the roller 62 to move, so that the rolling surface of the roller 62 contacts or separates from the lower surface of the battery cell 70.

[0085] In some embodiments, the lifting mechanism includes a mounting base 112. The mounting base 112 has an inclined support surface S1, and in the second direction, the mounting height of the first end of the mounting base 112 is higher than the mounting height of the second end of the mounting base; wherein, the first end is the end close to the carrier 10, and the second end is the end far from the carrier 10.

[0086] It can be understood that since the mounting base 112 has an inclined support surface S1, during the movement of the roller 62, the rolling pressure between the rolling surface of the roller 62 and the lower surface of the battery cell 70 can also be adjusted. While ensuring reliable smoothing and attachment of the adhesive tape, the battery cell 70 will not be lifted by one side due to excessive rolling pressure, damaging the battery cell 70; specifically, when the rolling surface of the roller 62 contacts the lower surface of the battery cell 70, the roller 62 moves from the first end to the second end direction, the height of the roller 62 decreases, and the rolling surface of the roller 62 gradually moves away from the lower surface of the battery cell 70 until the rolling surface of the roller 62 is completely separated from the lower surface of the battery cell 70, and the rolling pressure on the lower surface of the battery cell 70 decreases; when the roller 62 moves from the second end to the first end direction, the height of the roller 62 increases, the rolling surface of the roller 62 gradually approaches the lower surface of the battery cell 70, and the rolling pressure on the lower surface of the battery cell 70 gradually increases. Thus, during the actual processing, it is adjusted according to actual requirements.

[0087] The mounting base 112 in this embodiment is configured as a lifting mechanism, with a simple structure and easy to implement. On the one hand, it can reliably support the roller 62, and on the other hand, it can reliably realize the contact or separation between the rolling surface of the roller 62 and the lower surface of the battery cell 70, and adjust the rolling pressure of the rolling surface of the roller 62 on the lower surface of the battery cell 70.

[0088] In some embodiments, as Figure 4 shown, the sliding assembly further includes a slide rail 60 and a slider 61. The slide rail 60 is arranged on the mounting base 112, and the slide rail 60 extends along the inclined support surface S1 in the first direction. The slider 61 is slidably connected to the slide rail 60, and the slider 61 is connected to the roller 62. The slider 61 drives the roller 62 to move along the slide rail 60, so that the rolling surface of the roller 62 approaches or moves away from the lower surface of the battery cell 70.

[0089] It can be understood that the mounting base 112 mainly serves as a support for supporting the mounting slide rail 60. The slide rail mounting base 112 has an inclined support surface S1, and the slide rail 60 is mounted on the inclined support surface S1 of the mounting base 112. Accordingly, the slide rail 60 extends along the inclined direction of the inclined support surface S1, that is, the slide rail 60 is inclinedly mounted, so that the mounting height of the first end of the slide rail 60 is higher than the mounting height of the second end of the slide rail 60. Thus, when the roller 62 moves from the first end of the slide rail 60 to the second end of the slide rail 60 along the length direction of the slide rail 60, the rolling surface of the roller 62 gradually approaches the lower surface of the battery cell 70 until it contacts the lower surface of the battery cell 70. When the roller 62 moves from the second end of the slide rail 60 to the first end of the slide rail 60 along the length direction of the slide rail 60, the rolling surface of the roller 62 gradually moves away from the lower surface of the battery cell 70.

[0090] It can also be understood that the slide rail 60 and the slider 61 have a good guiding effect on the movement of the roller 62. The roller 62 moves along the length direction of the slide rail 60. On the one hand, it can realize that the rolling surface of the roller 62 approaches the lower surface of the battery cell 70 (until the rolling surface of the roller 62 contacts the lower surface of the battery cell 70) or realize that the rolling surface of the roller 62 moves away from the lower surface of the battery cell 70 (the rolling surface is separated from the lower surface of the battery cell 70); on the other hand, when the roller 62 moves along the length direction of the slide rail 60, it can also realize that after the rolling surface of the roller 62 contacts the lower surface of the battery cell 70, it reciprocates on the lower surface of the battery cell 70 to smooth the adhesive tape and improve the sticking effect of the adhesive tape.

[0091] In this embodiment, the arrangement of the slide rail 60 and the slider 61 is beneficial to guiding the roller 62, ensuring the stable movement of the roller 62 without shaking, so as to reliably smooth the adhesive tape.

[0092] As an implementable manner, the roller mechanism further includes a limiting member, which is detachably mounted on the mounting base 112, and the limiting member is used to limit the roller 62 so that the position of the roller is fixed.

[0093] It can be understood that after the slide rail 60 is inclinedly mounted, when the roller 62 moves to the first end of the slide rail 60, in order to prevent the roller 62 from sliding down along the slide rail 60 due to its own gravity, the limiting member in this embodiment is beneficial to limit and fix the roller 62.

[0094] Among them, the limiting member can be any kind of component, such as but not limited to a buckle, a fixing pin or a plug, etc. The limiting member is detachably mounted on the slide rail 60, which is convenient for disassembly and assembly. When it is necessary to limit and fix the roller 62, the limiting member can be mounted on the slide rail 60. The limiting member and the pulley limit each other. When it is not necessary to limit and fix the roller 62, the limiting member can be removed.

[0095] The limiting member in this embodiment is beneficial to stably limit the roller 62 and prevent the roller 62 from slipping, so as to ensure that the rolling surface of the roller 62 can reliably contact the lower surface of the battery cell 70.

[0096] In some embodiments, the carrier table 10 can move towards or away from the positioning block 20 to adjust the size of the accommodation space.

[0097] In this embodiment, by moving the carrier table 10, the size of the accommodation space can be further adjusted, so as to be compatible with various battery cells 70 of different sizes. Moreover, by moving the carrier table 10, the length of the side wall of the battery cell 70 extending out of the surface of the carrier table 10 can also be adjusted, so as to ensure that the roller mechanism can reliably smooth the attached adhesive tape.

[0098] In some embodiments, it further includes a fixed base 113, and the carrier table 10 is mounted on the fixed base 113.

[0099] In this embodiment, the carrier table 10 is mounted on the fixed base 113. The fixed base 113 is used to support the carrier table 10, and the carrier table 10 can move towards or away from the fixed base 113 on the fixed base 113.

[0100] As an implementable manner, the battery cell edge folding and forming fixture further includes a mounting bottom plate 110, and the fixed base 113 and the propulsion mechanism are mounted on the mounting bottom plate 110.

[0101] It can be understood that the mounting bottom plate 110 serves as the main body of the entire battery cell edge folding and forming fixture, and is used to support and mount the fixed base 113, the mounting seat 112, and the handle base 111 of the operating handle 50. The mounting bottom plate 110 makes the entire sealing edge folding and forming fixture have a compact structure and is convenient for operators to use.

[0102] In some embodiments, the carrier table 10 is detachably connected to the mounting bottom plate 110. In the first direction, the carrier table 10 can move towards or away from the positioning block 20 to adjust the size of the accommodation space; and / or,

[0103] The propulsion mechanism is detachably connected to the mounting bottom plate 110. In the first direction, the propulsion mechanism can move towards or away from the carrier table 10 to adjust the size of the accommodation space.

[0104] In summary, the cell hemming and forming fixture 100 according to the embodiments of the present application defines an accommodating space through the bearing table 10, the positioning block 20, and the hemming block 30 for accommodating the cell 70. The hemming block 30 protrudes from the end face of the bearing table 10 and abuts against the sealing edge 71 of the cell 70, and the positioning block 20 abuts against the side wall of the cell 70, which is beneficial to stably limit the position of the cell 70. And under the action of an external force, the rolling member 40 rolls downward along the position where the sealing edge 71 abuts against the hemming block 30 to hem the sealing edge 71. After attaching the adhesive tape to the surface of the cell 70 and the sealing edge 71 after hemming, the cell 70 is rotated 180 degrees, and then under the action of an external force, the positioning block 20 tightly abuts against the hemmed sealing edge 71 to achieve reliable hemming, which is beneficial to reducing the volume of the cell 70. At this time, the edge of the adhesive tape is bent towards the lower surface of the cell 70, and the adhesive tape is smoothed to closely adhere to the cell 70, thus completing the hemming and forming of the sealing edge 71 of the cell 70.

[0105] The hemming and forming fixture of the present utility model has a simple structure, convenient operation, high hemming efficiency, and can reliably press and hem. On the one hand, it is beneficial to improve the hemming and forming efficiency and the yield of hemming and forming. On the other hand, it is beneficial to reduce the volume of the cell 70. And the setting of the roller mechanism is beneficial to reliably smooth the attached adhesive tape without manual smoothing by the operator, which is beneficial to further improving the hemming and forming efficiency of the sealing edge 71 and increasing the yield.

[0106] In the second aspect, the embodiments of the present application provide a battery processing device, including the cell hemming and forming fixture 100 of the first aspect. It can be understood that the battery processing device according to the embodiments of the present application has all the features and advantages of the above-mentioned cell hemming and forming fixture 100, which will not be elaborated here. In short, the battery processing device according to the embodiments of the present application is beneficial to improving the production and processing efficiency and increasing the yield.

[0107] Next, a specific embodiment is used to illustrate the cell hemming and forming fixture 100 of the present application.

[0108] As Figures 1-5 shown, the cell hemming and forming fixture includes a mounting base plate 110. A handle base 111, a slide rail mounting seat 112, and a fixed base 113 are mounted on the surface of the mounting base plate 110. A control handle 50 is mounted on the handle base 111. The control handle 50 is drivingly connected to the positioning block 20. A slide rail 60 is mounted on the slide rail mounting seat 112, and a bearing table 10 is mounted on the fixed base 113;

[0109] Among them, the control handle 50 is connected to the handle base 111 through a rotating shaft 51. A connecting member 52 is hinged to the control handle 50. The other end of the connecting member 52 is hinged to a push rod 53. The other end of the push rod 53 is mounted with a positioning block 20. By operating the control handle 50, the positioning block 20 can move along the traveling direction of the push rod 53, that is, approach or move away from the bearing table 10;

[0110] The mounting base 112 has an inclined support surface S1, and a slide rail 60 is provided on the inclined support surface S1. The slide rail 60 is inclined, and the mounting height of the first end of the slide rail 60 is higher than the mounting height of the second end of the slide rail 60. A slider 61 is fitted and mounted on the slide rail 60, and a roller 62 is mounted on the slider 61. The roller 62 is located below the positioning block 20. The slider 61 drives the roller 62 to move along the slide rail 60, so that the rolling surface of the roller 62 contacts or separates from the lower surface of the battery cell 70.

[0111] The carrier table 10 can move towards or away from the positioning block 20 on the fixed base. A hemming block 30 is mounted on the side of the carrier table 10 opposite to the positioning block 20. One end face of the hemming block 30 protrudes from the surface of the carrier table 10. Thus, the positioning block 20, the carrier table 10, and the hemming block 30 define an accommodating space for accommodating the battery cell 70. Among them, the hemming block 30 can move along the height direction of the carrier table 10 to abut against the sealing edge 71 of the battery cell 70 with different sizes. A long hole is formed in the hemming block 30 along the height direction parallel to the carrier table 10. After the hemming block 30 moves to abut against the sealing edge 71 of the battery cell 70, a stud passes through the limiting groove 31 and contacts the carrier table 10, and the position of the stud is fixed by cooperating a nut with the stud. Thus, the position of the hemming block 30 is fixed.

[0112] The operation method of the cell hemming and forming jig 100 of this embodiment is as follows: Place the cell 70 on the carrier table 10, adjust the position of the hemming block 30 so that the top surface of the hemming block 30 abuts against the sealing edge 71 of one side wall of the cell 70, and the other side wall of the cell 70 extends out of the surface of the carrier table 10. Then, drive the positioning block 20 to move into contact with one side wall of the cell by operating the handle 50. The rolling member 40 rolls down the sealing edge 71 of the cell 70 along the height direction of the hemming block 30 from the area where the sealing edge 71 of the cell 70 abuts against the hemming block 30, so that the sealing edge 71 of the cell 70 is bent. Generally, the bending angle of the sealing edge 71 here is less than 90 degrees. The operator attaches adhesive tape to both the upper surface of the cell 70 and the bent sealing edge 71, manually smooths the adhesive tape on the upper surface or smooths the adhesive tape on the upper surface through the rolling member 40. Then, rotate the cell 70 by 180 degrees so that the bent sealing edge 71 tightly abuts against the positioning block 20, and the unbent sealing edge 71 of the cell 70 abuts against the hemming block 30. Drive the positioning block 20 to move by operating the handle 50, and the positioning block 20 squeezes the bent sealing edge 71. At this time, the hem of the sealing edge 71 is perpendicular to the adhesive tape and downward at 90 degrees. The operating roller 62 moves along the slide rail 60 until the rolling surface of the roller 62 contacts the lower surface of the cell 70. At the same time, the operator can press on the upper surface of the cell 70 by hand to fix the cell 70 and prevent the cell 70 from being lifted by the roller 62. The roller 62 continues to move on the lower surface of the cell 70 to smooth and attach the adhesive tape to the lower surface of the cell 70, and thus the hemming and forming of the sealing edge 71 is completed. Similarly, perform the same operation on the other sealing edge 71 of the cell 70 to complete the hemming and forming of the sealing edges 71 of the entire cell 70.

[0113] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. The hemming and forming fixture for the battery cell, characterized in that, Comprising: A carrier table, the upper surface of the carrier table being used to carry the battery cell; A positioning block, the positioning block being located on one side of the carrier table; A forming assembly, the forming assembly including a hemming block and a rolling member, the hemming block being installed on the side of the carrier table opposite to the positioning block, and the top surface of the hemming block protruding above the upper surface of the carrier table, the top surface of the hemming block carrying the sealing edge of the battery cell, and the rolling member moving relative to the side surface of the hemming block to roll the sealing edge; The positioning block, the carrier table and the hemming block define an accommodation space for accommodating the battery cell, the positioning block abuts against one side wall of the battery cell, and the hemming block abuts against the other side wall of the battery cell to form a hemmed edge for the sealing edge.

2. The edge folding and forming fixture for the battery cell according to claim 1, wherein Further comprising: A propulsion mechanism, the propulsion mechanism being drivingly connected to the positioning block, in a first direction, the propulsion mechanism driving the positioning block to move towards or away from the carrier table to adjust the size of the accommodation space, the first direction being perpendicular to the side wall of the battery cell.

3. The edge folding and forming jig for the battery cell according to claim 2, wherein, Further comprising a limiting structure, the limiting structure including a limiting groove and a fastener, the limiting groove being opened on the hemming block and extending along a second direction, and the fastener being fixedly connected to the carrier table through the limiting groove to adjust and fix the position of the hemming block in the second direction, the second direction being perpendicular to the upper surface of the carrier table and perpendicular to the first direction.

4. The cell hemming and forming fixture according to claim 3, characterized in that, Further comprising a roller mechanism, the roller mechanism being arranged on one side of the carrier table and on the same side as the positioning block, the rolling surface of the roller mechanism being lower than the upper surface of the carrier table, and the rolling surface being able to approach or move away from the lower surface of the battery cell; In a state where the battery cell is accommodated in the accommodation space, the sealing edge of one side wall of the battery cell is in tight contact with the positioning block, in the first direction, one side wall of the battery cell extends above the upper surface of the carrier table, and when the rolling surface approaches and is in tight contact with the lower surface of the battery cell, the sealing edge of one side wall of the battery cell can be formed into a hemmed edge.

5. The edge folding and forming jig for the battery cell according to claim 4, wherein, The roller mechanism includes a roller and a sliding assembly connected in a sliding manner, and the sliding assembly drives the roller to move along the first direction so that the rolling surface approaches or moves away from the lower surface of the battery cell.

6. The cell hemming and forming jig according to claim 5, wherein, The roller mechanism further includes a lifting structure, and the lifting structure is in transmission connection with the roller for driving the rolling surface to contact or separate from the battery cell.

7. The cell hemming and forming fixture according to claim 6, wherein The lifting structure includes a mounting seat, the mounting seat having an inclined support surface, and in the second direction, the mounting height of the first end of the mounting seat is higher than the mounting height of the second end of the mounting seat; wherein, the first end is the end closer to the carrier table in the first direction, and the second end is the end farther from the carrier table in the first direction.

8. The cell hemming and forming jig according to claim 7, wherein, The sliding assembly includes a slide rail and a slider, the slide rail is arranged on the mounting seat, and the slide rail extends along the inclined supporting surface in the first direction, the slider is slidably connected to the slide rail, and the slider is connected to the roller and drives the roller to move along the slide rail so that the rolling surface approaches or moves away from the lower surface of the battery cell.

9. The cell hemming and forming fixture according to claim 7, wherein The roller mechanism further includes a limiting member, which is detachably mounted on the mounting seat and is used to limit the position of the roller so that the position of the roller is fixed.

10. The cell hemming and forming fixture according to any one of claims 2-9, characterized in that, It also includes a mounting base plate, on which the supporting platform and / or the propulsion mechanism can be adjustably mounted.

11. The cell hemming and forming jig according to claim 10, wherein, The carrying platform is detachably connected to the mounting base plate, and in the first direction, the carrying platform can move toward or away from the positioning block to adjust the size of the accommodation space; and / or, The propulsion mechanism is detachably connected to the mounting base plate. In the first direction, the propulsion mechanism can move toward or away from the supporting platform to adjust the size of the accommodating space.

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