Battery cell folding and forming jig and battery processing equipment

Abstract

The utility model relates to a battery cell flanging and forming jig and battery processing equipment, and the battery cell flanging and forming jig comprises: a bearing table, the upper surface of which is used for bearing a battery cell; the positioning block is movably connected to the upper surface of the bearing table; the forming assembly comprises an edge folding block and a rolling part, the edge folding block is installed on one side of the bearing table, the edge folding block and the positioning block are oppositely arranged, 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 and fold 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 in the first state. 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 core edge folding and forming fixture and a battery processing device. Background Art

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

[0003] In view of the above defects or deficiencies in the prior art, it is desired to provide a core edge folding and forming fixture and a battery processing device, which can reliably fold and form the sealing edge of the core, improve the forming effect and production efficiency.

[0004] The utility model provides a core edge folding and forming fixture, including:

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

[0006] A positioning block, which is movably connected to the upper surface of the carrier table;

[0007] A forming assembly, which includes a folding block and a rolling member. The folding block is installed on one side of the carrier table. The folding block and the positioning block are arranged opposite to each other, and the top surface of the folding block protrudes from the upper surface of the carrier table. The top surface of the folding block carries the sealing edge of the core. The rolling member moves relative to the side surface of the folding block to roll and fold the sealing edge to form a sealing edge in a first state;

[0008] The positioning block, the carrier table and the folding block define an accommodating space for accommodating the core. The positioning block abuts against one side wall of the core, and the folding block abuts against the other side wall of the core to fold and form the sealing edge to form a sealing edge in a second state.

[0009] As an optional solution, it further includes: a propulsion mechanism, which is drivingly connected to the positioning block. In a first direction, the propulsion mechanism drives the positioning block to move toward or away from the folding block on the upper surface of the carrier table to adjust the size of the accommodating space. The first direction is the direction perpendicular to the side wall of the core.

[0010] As an optional solution, it further includes a guiding assembly, which is connected to the positioning block and used for guiding the positioning block to move toward or away from the folding block on the upper surface of the carrier table.

[0011] As an alternative solution, the guiding assembly includes a slide rail and a slider. The slide rail is installed on the upper surface of the bearing platform and extends along the first direction. The slider is slidably connected to the slide rail, and the slider is connected to the positioning block, and the slider drives the positioning block to move along the first direction.

[0012] As an alternative solution, there are two slide rails. The two slide rails are located on the upper surface of the bearing platform and are oppositely arranged on both sides in the second direction. The positioning block straddles the two slide rails and is connected to the slider. The second direction is a direction parallel to the upper surface of the bearing platform and perpendicular to the first direction.

[0013] As an alternative solution, the guiding assembly includes two guide rods. The two guide rods are located on both sides of the bearing platform in the second direction. The positioning block straddles the bearing platform and is connected to the two guide rods. The second direction is a direction parallel to the upper surface of the bearing platform and perpendicular to the first direction.

[0014] As an alternative solution, one of the bearing platform and the hemming block is provided with a limiting structure, and the other is provided with an adjusting structure. The limiting structure cooperates with the adjusting structure to adjust and fix the position of the hemming block in the third direction. The third direction is a direction perpendicular to the upper surface of the bearing platform and perpendicular to the first direction and the second direction respectively.

[0015] As an alternative solution, the adjusting structure is arranged on the bearing platform, and the limiting structure is arranged on the hemming block. The limiting structure includes a limiting groove and a fastener. The limiting groove is opened on the hemming block and extends along the third direction. The fastener connects the limiting groove and the adjusting structure to tightly connect the hemming block and the bearing platform, so as to realize the position adjustment and fixation of the hemming block in the third direction.

[0016] As an alternative solution, it further includes a mounting base plate, and the bearing platform and / or the propulsion mechanism can be adjustably mounted on the mounting base plate.

[0017] In a second aspect, the present utility model provides a battery processing device, including the core hemming and forming fixture of the first aspect.

[0018] 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 down 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, when the battery cell is turned over 180 degrees, 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 (the upper surface after turning over), and the adhesive tape is manually smoothed to closely adhere 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 and is convenient to operate. There is no need to set other roller mechanisms, and the edge folding efficiency is high. It can reliably press and fold the edge, which is beneficial to improving the edge folding and forming efficiency and the yield of edge folding and forming on the one hand, and is beneficial to reducing the volume of the battery cell on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] 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;

[0021] Figure 2 is a schematic structural diagram of an edge folding and forming fixture for a battery cell according to an embodiment of the present application (without placing the battery cell);

[0022] Figure 3 is a schematic structural diagram of a battery cell according to an embodiment of the present application;

[0023] Figure 4 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 5 is a schematic structural diagram of the rolling member in an edge folding and forming fixture for a battery cell according to an embodiment of the present application.

[0025] In the figure,

[0026] 100, edge folding and forming fixture for battery cell;

[0027] 110, mounting base plate, 111, handle base;

[0028] 10, bearing table;

[0029] 20, positioning block;

[0030] 30, folding block, 31, limiting groove;

[0031] 40. Rolled part;

[0032] 50. Operating handle, 51. Rotating shaft, 52. Connecting part, 53. Pushing rod;

[0033] 60. Slide rail, 61. Slide block, 62. Slide groove; 70. Battery cell, 71. Sealing edge. Specific implementation mode

[0034] The following further elaborates on the present application in conjunction with the 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.

[0035] 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 following will elaborate on the present application in detail with reference to the embodiments.

[0036] An embodiment of the present application provides a battery cell hemming and forming fixture 100, as Figures 1-5 shown, including:

[0037] A carrier table 10, the upper surface of the carrier table 10 is used to carry the battery cell 70;

[0038] A positioning block 20, the positioning block 20 is located on the surface of the carrier table 10;

[0039] A forming assembly, the forming assembly includes a hemming block 30 and a rolled part 40. The hemming block 30 is installed on one side of the carrier table 10. The hemming block 30 is arranged opposite to the positioning block 20, and the top surface of the hemming block 30 protrudes from 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 and hem the sealing edge 71 to form the sealing edge 71 in the first state.

[0040] The positioning block 20, the carrier table 10 and the hemming block 30 define an accommodation 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 hem and form the sealing edge 71 to form the sealing edge 71 in the second state.

[0041] 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 body is encapsulated by an aluminum-plastic film, and the sealing edge 71 of the battery cell 70 refers to the area remaining on both sides of the battery cell 70 after the aluminum-plastic film is heat-sealed.

[0042] 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 and close to the upper surface of the carrier table 10 in the Z direction.

[0043] It can be understood that the carrier table 10 is mainly used to carry the battery cell 70. The battery cell 70 is placed on the carrier table 10, and the entire area of the large surface of the battery cell 70 is in contact with the surface of the carrier table 10, and one side wall of the battery cell 70 is in contact with the positioning block 20. In actual production and processing, when the battery cell 70 is placed on the carrier table 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 in the first state, there is no need for the positioning block 20 to fix the battery cell, and the operator can press and fix the battery cell. Of course, in some implementation processes, the end face of the positioning block 20 facing away from the carrier table 10 does not exceed the plane where the sealing edge 71 is located on the side wall of the battery cell 70, thus avoiding interference between the positioning block 20 and the unbent sealing edge 71, which is beneficial to ensuring that the positioning block 20 reliably abuts against the side wall of the battery cell 70, and there is no need for the 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 being able to reliably fix the battery cell 70, without the need for the operator to fix the battery cell, thus liberating the labor force.

[0044] Among them, the position of the positioning block 20 can be fixed or the positioning block 20 can move towards or away from the carrier table 10. The specific setting method of the positioning block 20 in the embodiments of the present application is not limited, as long as it is ensured that the positioning block 20 has a surface facing the battery cell 70, can tightly abut against the side wall of the battery cell 70, and can realize limiting and fixing the battery cell 70 while extruding and forming the folded sealing edge 71.

[0045] It can also be understood that the forming assembly is mainly used for folding and forming the sealing edge 71 of the battery cell 70. Among them, the forming assembly includes a folding block 30 and a rolling member 40. The folding block 30 is arranged opposite to the positioning block 20, and the protruding end face 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 to make it bend 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 and forming of the sealing edge 71 of the battery cell 70.

[0046] It should be noted that the rolling member 40 can be any existing roller, passing roller or pressing roller; and the rolling member 40 can be manually held by the 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 are not specifically limited thereto, as long as it can ensure that pressure is applied to the sealing edge 71 of the battery cell 70 to make it bend.

[0047] Exemplarily, such as Figure 1As 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 table 10, and the flanging block 30. One side wall of the battery cell 70 abuts against the positioning block 20, and the sealing edge 71 on the other side of the battery cell 70 extends out of the surface of the bearing table 10, and the sealing edge 71 on the other side abuts against the end surface of the flanging block 30 protruding from the surface of the bearing table 10. The operating roller pressing member 40 is from the area where the sealing edge 71 of the battery cell 70 abuts against the flanging block 30, and rolls down the sealing edge 71 of the battery cell 70 along the height direction of the flanging block 30 (such as Figure 1 the Z direction in

[0048] ), so that the sealing edge 71 of the battery cell 70 is bent. The bending angle of the sealing edge 71 here is less than 90 degrees. The operator attaches adhesive tape to the upper surface of the battery cell 70 and the bent sealing edge 71 at the same time, manually smooths or rolls and smooths the adhesive tape on the upper surface, and then turns the battery cell 70 over and rotates it 180 degrees, so 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 flanging block 30, and the same bending and flanging is 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 flanged edge of the sealing edge 71 is perpendicular to the adhesive tape and upward at 90 degrees. The operating roller pressing member 40 or manually attach the adhesive tape to the lower surface of the battery cell 70 (that is, the upper surface after the battery cell is turned over), and the flanging of the sealing edge 71 can be completed.

[0049] The battery cell flanging and forming jig 100 of the embodiment of the present application solves the problems of low production efficiency in the prior art operation process and poor forming effect due to the inability to reliably smooth the flanged edge after flanging. The battery cell flanging and forming jig 100 of the embodiment of the present application defines an accommodation space through the bearing table 10, the positioning block 20, and the flanging block 30 for accommodating the battery cell 70. The end surface of the flanging block 30 protruding from the bearing table 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 to stably limit the position of the battery cell 70. And under the action of an external force, the sealing edge 71 is flanged by rolling down along the position where the sealing edge 71 abuts against the flanging block 30 through the roller pressing member 40. After attaching the adhesive tape to the surface of the battery cell 70 and the sealing edge 71 after flanging, the battery cell 70 is turned over and rotated 180 degrees, and then under the action of an external force, the positioning block 20 abuts tightly against the flanged sealing edge 71 to achieve reliable flanging.

[0050] As a feasible way, the positioning block 20 can move towards or away from the flanging block 30 to adjust the size of the accommodation space.

[0051] It can be understood that when the positioning block 20 moves towards the hemming block 30, 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 hemming block 30, the accommodating space increases, which is beneficial for applying to the large-sized battery cell 70.

[0052] Among them, the movement of the positioning block 20 can be achieved by manually applying force to the positioning block 20 to make the positioning block 20 move towards or away from the hemming block 30; of course, the movement of the positioning block 20 can also be achieved by other power components (such as but not limited to a driving 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.

[0053] This embodiment is beneficial to adjusting the size of the accommodating space, and thus is beneficial to accommodating various different-sized battery cells 70 and performing hemming forming on the sealing edges 71 of various different-sized battery cells 70.

[0054] In some embodiments, it further includes: a propulsion mechanism, which 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 hemming block 30 on the upper surface of the carrier 10 to adjust the size of the accommodating space, and the first direction is perpendicular to the side wall of the battery cell 70.

[0055] In some embodiments, the propulsion mechanism includes a driving member and a transmission member drivingly connected to the driving member, and 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 hemming block 30.

[0056] Among them, the driving member can be but not limited to a machine that can provide power (such as a driving 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.

[0057] 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.

[0058] As a feasible implementation, as Figures 2-5 shown, the transmission member includes a propulsion rod 53, one end of the propulsion rod 53 is connected to the positioning block 20, the driving member includes a control handle 50, and the other end of the propulsion rod 53 is connected to the control handle 50.

[0059] 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 push rod 53 can be reliably driven to drive the positioning block 20 to move by operating the operating handle 50.

[0060] In some embodiments, the core hemming and forming fixture 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. A support area is also arranged on the handle base 111. One end of the push rod 53 extends into the support area and 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.

[0061] 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.

[0062] 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.

[0063] As an achievable way, the core hemming and forming fixture further includes a guiding component. The guiding component is connected to the positioning block and is used to guide the positioning block 20 to face or move away from the surface of the hemming block 30 on the upper surface of the carrying platform 10.

[0064] Among them, the guiding component can be but not limited to a guide rail, a slide rail, a chute or a combination of a slide rail and a chute, etc.

[0065] The guiding component in this embodiment is beneficial to guide the positioning block 20 and ensure the stable movement of the positioning block 20.

[0066] In some embodiments, the guiding component includes a slide rail 60 and a slider 61. The slide rail 60 is installed on the upper surface of the carrying platform 10 and extends along the first direction (such as Figure 1 the X direction in it), the slider 61 is slidably connected to the slide rail 60, and the slider 61 is connected to the positioning block 20. The slider 61 drives the positioning block 20 to move along the first direction.

[0067] It can be understood that the slide rail 60 and the slider 61 have a good guiding effect on the movement of the positioning block 20. The positioning block 20 moves along the length direction of the slide rail 60. On the one hand, it is beneficial to adjust the size of the accommodating space to make it compatible with various sizes of battery cells. Specifically, when the positioning block 20 moves along the slide rail 60 towards the flanging block 30, the accommodating space decreases, which is suitable for small-sized battery cells. When the positioning block 20 moves along the slide rail 60 away from the flanging block 30, the accommodating space increases, which is suitable for large-sized battery cells. On the other hand, when the positioning block 20 moves along the slide rail 60, the magnitude of the pressure applied to the side wall of the battery cell can be adjusted, which is beneficial to extruding the sealed edge 71 after bending. Specifically, when the positioning block 20 moves towards the flanging block 30 until it contacts the side wall of the battery cell 70 and continues to move, the pressure of the positioning block 20 on the sealed edge 71 after bending of the battery cell 70 gradually increases. When the positioning block 20 moves away from the flanging block 30 until it separates from the side wall of the battery cell 70, during this process, the pressure of the positioning block 20 on the sealed edge 71 after bending of the battery cell 70 gradually decreases to 0.

[0068] In this embodiment, the arrangement of the slide rail 60 and the slider 61 is beneficial to guiding the positioning block 20, ensuring the stable movement of the positioning block 20 without shaking, and thus being beneficial to the reliable forming of the sealed edge 71.

[0069] In some embodiments, there are two slide rails 60. The two slide rails 60 are located on the upper surface of the carrier table 10 and are oppositely arranged on both sides in the second direction (such as Figure 1 the Y direction in the figure), and the positioning block 20 straddles the two slide rails 60 and is connected to the slider 61. The second direction is the direction parallel to the upper surface of the carrier table 10 and perpendicular to the first direction.

[0070] The two slide rails in this embodiment are beneficial to improving the stability of guiding.

[0071] In some other embodiments, the guiding component includes two sliding grooves 62. The two sliding grooves 62 are located on the upper surface of the carrier table 10 and are oppositely arranged on both sides in the second direction. The positioning block 20 straddles the two slide rails 60 and can move along the extending direction of the sliding groove 62.

[0072] The sliding groove structure in this embodiment is simple, convenient to process, and can reliably guide the positioning block 20.

[0073] Of course, in some other embodiments, the sliding groove 62 can be used in combination with the slide rail 60, and the slide rail 60 is installed inside the sliding groove 62, which is convenient for the installation of the slide rail 60.

[0074] As a feasible way, the flanging block 30 can move along the height direction of the carrier table 10.

[0075] It can be understood that the hemming block 30 can move along the height direction of the carrier table 10 (such as the Z direction in Figure 1 ) under the operation of an operator. Of course, the hemming block 30 can also move along the height direction of the carrier table 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.

[0076] In practical applications, a lifting mechanism can also be provided on the side wall of the carrier table 10. For example, but not limited to, a ball screw and a driving motor. The hemming block 30 is fitted and 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 provided on the side wall of the carrier table 10. For example, but not limited to, a slide rail. The hemming block 30 is fitted and installed on the slide rail, and the hemming block 30 moves along the length direction of the slide rail.

[0077] In this embodiment, by moving the hemming block 30, it is beneficial to be compatible with various different 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 walls of the battery cells 70, therefore, by moving 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 carrier table 10 and the positioning block 20 to reliably limit the battery cell 70.

[0078] As an implementable manner, one of the carrier table 10 and the hemming block 30 is provided with a limiting structure, and the other is provided with an adjusting structure. The limiting structure cooperates with the adjusting structure to adjust and fix the position of the hemming block 30 in the third direction ( Figure 1 the Z direction in), the third direction is perpendicular to the upper surface of the carrier table, and is perpendicular to the first direction and the second direction respectively.

[0079] Among them, the adjusting structure can be, but not limited to, a groove or hole opened on the side wall of the carrier table 10, and the limiting structure can be, but not limited to, bolts, fixed pins, etc.

[0080] The adjusting structure and the limiting structure in this embodiment are beneficial for the hemming block 30 to move along the third direction, and at the same time, the position of the hemming block 30 can be fixed when the hemming block 30 moves to a predetermined position, so that the hemming block 30 can reliably abut against the sealing edge 71 of the battery cell 70.

[0081] In some embodiments, the adjusting structure is provided on the carrier table 10, and the limiting structure is provided on the hemming block 30. 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 abutting 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, and further beneficial to ensure the reliable hemming and forming of the sealing edge 71 of the battery cell 70.

[0082] As an implementable manner, the limiting structure includes a limiting groove 31 and a fastener. The limiting groove 31 is formed in the flanging block 30 and extends along the third direction. The fastener connects the limiting groove 31 and the adjusting structure to firmly connect the flanging block 30 and the bearing platform 10, so as to realize the position adjustment and fixation of the flanging block 30 in the third direction.

[0083] It can be understood that the limiting groove 31 can be a long hole, a kidney-shaped hole, a long groove, etc. formed in the flanging block 30, and the adjusting structure can be an array of holes formed in the side wall of the bearing platform 10. The array of holes is evenly spaced along the third direction. The embodiments of the present application do not make specific limitations on this; the fastener can be, but is not limited to, a nut and a threaded shaft with threads in at least part of the area. When the flanging 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 extends into the hole inside the side wall of the bearing platform 10. By tightening the nut, the end of the threaded shaft is tightly in contact with the hole wall of the side wall of the bearing platform 10, and the position of the flanging block 30 is fixed.

[0084] The limiting structure of this embodiment is simple and easy to implement, and can reliably limit and fix the flanging block 30 to ensure reliable contact between the flanging block 30 and the sealing edge 71 of the battery cell 70.

[0085] As an implementable manner, the battery cell flanging and forming jig further includes a mounting base plate 110, and the bearing platform 10 and / or the propulsion mechanism is / are adjustably mounted on the mounting base plate.

[0086] It can be understood that the mounting base plate 110 serves as the main body of the entire battery cell flanging and forming jig, and is used to support and mount the bearing platform 10 and the handle base 111 of the operating handle 50. The mounting base plate 110 makes the entire battery cell flanging and forming jig have a compact structure and is convenient for operation by the operator.

[0087] In summary, the cell hemming and forming fixture 100 of the embodiment of the present application defines an accommodation space through the carrier 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 carrier 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 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 cell 70 and the sealing edge 71 after hemming, the cell 70 is flipped and rotated 180 degrees, and then under the action of an external force, the positioning block 20 tightly abuts against the sealed edge 71 after hemming 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 (the upper surface after flipping), and the adhesive tape is smoothed and closely attached to the cell 70, thus completing the hemming and forming of the sealing edge 71 of the cell 70; the hemming and forming fixture of the present utility model has a simple structure, is convenient to operate, has a high hemming efficiency, and can reliably press and fold the edge. 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;

[0088] Moreover, guiding the positioning block 20 through the slide rail 60 and the slider 61 is beneficial to ensuring the stable movement of the positioning block 20 and the movement of the hemming block 30 along the height direction of the carrier table 10, which is beneficial to adjusting the size of the accommodation space, being compatible with and adapting to various cells of different sizes, and improving the applicability of the entire fixture.

[0089] In the second aspect, the embodiment of the present application provides 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 of the embodiment of the present application has all the features and advantages of the above cell hemming and forming fixture 100, and will not be elaborated herein. In short, the battery processing device of the embodiment of the present application is beneficial to improving the production and processing efficiency and the yield.

[0090] Next, a specific embodiment is used to illustrate the cell hemming and forming fixture of the present application.

[0091] As Figures 1-5 shown, the cell hemming and forming fixture 100 includes a mounting base plate 110. A handle base 111 and a carrier table 10 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. The positioning block 20 is located on the surface of the carrier table 10. A hemming block 30 is further provided on one side of the carrier table 10. The hemming block 30 is disposed opposite to the positioning block 20;

[0092] Among them, the operating handle 50 is connected to the handle base 111 through a rotating shaft 51. A connecting member 52 is hinged on the operating handle 50, and the other end of the connecting member 52 is hinged to a push rod 53. A positioning block 20 is installed at the other end of the push rod 53. By operating the operating handle 50, the positioning block 20 can move along the advancing direction of the push rod 53, that is, approach or move away from the hemming block 30;

[0093] Two sliding grooves 62 are formed in the areas on both sides of the surface of the carrier table 10. Each sliding groove 62 extends inward from the edge of the carrier table 10. A slide rail 60 is fixedly installed inside each sliding groove 62. A slider 61 is installed in cooperation with the slide rail 60. The slider 61 is connected to the positioning block 20, so that the positioning block 20 is arranged across the two slide rails 60. The slider 61 drives the sliding positioning block 20 to move along the slide rail 60;

[0094] One end face of the hemming block 30 protrudes from the surface of the carrier table 10. In this way, the positioning block 20, the carrier table 10 and the hemming block 30 define an accommodation 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, the stud passes through the limiting groove 31 to contact the carrier table 10, and the position of the stud is fixed by matching the nut with the stud. In this way, the position of the hemming block 30 is fixed.

[0095] The operation method of the cell hemming and forming jig 100 in this embodiment is as follows: Place the cell 70 on the bearing table 10. Drive the positioning block 20 to move until it contacts one side wall of the cell by manipulating the handle 50, and adjust the position of the hemming block 30 so that the hemming block 30 protrudes from the end face of the bearing table 10 and abuts against the sealing edge 71 of the other side wall of the cell 70. Operate the rolling member 40 to roll 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 it through the rolling member 40. Then, turn the cell 70 over and rotate it 180 degrees, so that the upper surface of the cell becomes the lower surface, the lower surface becomes the upper surface, and the bent sealing edge 71 tightly contacts 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 manipulating 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 extends upward at 90 degrees. Operate the rolling member 40 or the operator manually smooths the adhesive tape and attaches it to the lower surface (the turned-up upper surface) of the cell 70, and the hemming and forming of the sealing edge 71 can be completed. Similarly, perform the same operation on the unbent sealing edge 71 of the cell 70 to complete the hemming and forming of the sealing edge 71 of the entire cell 70.

[0096] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. 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 solutions 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 edge folding and forming fixture for the battery cell, characterized in that Comprising: A carrier table, the upper surface of which is used to carry the battery cell; A positioning block, which is movably connected to the upper surface of the carrier table; A forming assembly, which includes a hemming block and a rolling member. The hemming block is installed on one side of the carrier table, and the hemming block and the positioning block are arranged opposite to each other. Moreover, the top surface of the hemming block protrudes from the upper surface of the carrier table, and the top surface of the hemming block bears the sealing edge of the battery cell. The rolling member moves relative to the side surface of the hemming block to roll and hem the sealing edge to form a sealing edge in the first state; 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 hem and form the sealing edge in the second state for the sealing edge in the first state.

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

3. The cell hemming and forming jig according to claim 2, wherein, Further comprising a guiding assembly, which is connected to the positioning block and is used to guide the positioning block to move on the upper surface of the carrier table towards or away from the hemming block.

4. The edge folding and forming jig for the battery cell according to claim 3, wherein, The guiding assembly includes a slide rail and a slider. The slide rail is installed on the upper surface of the carrier table and extends along the first direction. The slider is slidably connected to the slide rail, and the slider is connected to the positioning block. The slider drives the positioning block to move along the first direction.

5. The edge folding and forming jig for the battery cell according to claim 4, wherein, There are two slide rails. The two slide rails are located on the upper surface of the carrier table and are arranged opposite to each other on both sides in a second direction. The positioning block straddles the two slide rails and is connected to the slider. The second direction is parallel to the upper surface of the carrier table and perpendicular to the first direction.

6. The edge folding and forming fixture for the battery cell according to claim 3, wherein, The guiding assembly includes two guide rods, which are respectively arranged on both sides of the carrier table in the second direction. The positioning block straddles the carrier table and is connected to the two guide rods. The second direction is parallel to the upper surface of the carrier table and perpendicular to the first direction.

7. The cell hemming and forming jig according to any one of claims 5-6, characterized in that, One of the carrier table and the hemming block is provided with a limiting structure, and the other is provided with an adjusting structure. The limiting structure cooperates with the adjusting structure to adjust and fix the position of the hemming block in a third direction. The third direction is perpendicular to the upper surface of the carrier table and is perpendicular to the first direction and the second direction respectively.

8. The cell hemming and forming jig according to claim 7, characterized in that, The adjusting structure is arranged on the carrier table, and the limiting structure is arranged on the hemming block. The limiting structure includes a limiting groove and a fastener. The limiting groove is opened on the hemming block and extends along the third direction. The fastener connects the limiting groove and the adjusting structure to tightly connect the hemming block and the carrier table to realize the position adjustment and fixation of the hemming block in the third direction.

9. The edge folding and forming jig for the battery cell according to any one of claims 2-8, characterized in that, It further includes a mounting base plate, and the carrying platform and / or the propulsion mechanism are adjustably mounted on the mounting base plate.

10. A battery processing device, characterized in that, It includes a core hemming and forming jig according to any one of claims 1-9.

Images