Pole piece corner punching device

Abstract

The embodiment of the utility model provides a pole piece corner punching device, and relates to the technical field of lithium battery manufacturing. The pole piece corner punching device comprises a rack, a connecting assembly, a driving assembly and two punching assemblies. The connecting assembly comprises two connecting plates, the two connecting plates are arranged on the rack in a spaced mode in the first direction, the driving assembly comprises two driving parts, the two driving parts are connected with the connecting plates correspondingly, and the driving parts are used for driving the connecting plates to move in the second direction relative to the rack. The two punching assemblies are arranged on the rack in the first direction at intervals, each punching assembly comprises a plurality of punching modules arranged in the third direction at intervals, and the multiple punching modules of each punching assembly are connected with one connecting plate. According to the corner punching assembly in the embodiment, the two sets of punching assemblies can be driven to move up and down only through the two driving pieces, the number of the driving pieces is effectively reduced, and therefore the cost of the whole pole piece corner punching device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a pole piece punching angle device. Background Art

[0002] In the lamination process of the lithium battery industry, the pole piece corner cutting plays a role in preventing the pole piece from falling off and piercing the diaphragm, and is widely used. There are currently two ways of cutting corners in the industry, namely die punching and laser cutting. Since the cutting position is in the coating area of ​​the pole piece, laser cutting will produce a large amount of dust falling on the surface of the pole piece, which is difficult to handle and seriously affects the performance of the battery. Therefore, for the cleanliness of the pole piece surface and the quality and safety of the battery, most of the pole piece corners are still cut by die punching.

[0003] The inventors have found through research that the existing pole piece corner punching device has multiple pairs of corner punching dies, and each pair of corner punching dies needs to be equipped with two driving parts, which is relatively costly. Utility Model Content

[0004] The utility model aims to provide a pole piece punching angle device, which can reduce the cost of the overall device.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a pole piece punching angle device, comprising:

[0007] frame;

[0008] A connecting assembly, the connecting assembly comprising two connecting plates, the two connecting plates being spaced apart and arranged on the frame along a first direction;

[0009] A driving assembly, the driving assembly comprising two driving members, the two driving members are respectively connected to the connecting plate, and the driving members are used to drive the connecting plate to move relative to the frame along the second direction;

[0010] Two groups of punching components are arranged on the frame at intervals along the first direction, each group of punching components includes multiple punching modules arranged at intervals along the third direction, and the multiple punching modules of each group of punching components are connected to a connecting plate. The first direction, the second direction and the third direction are perpendicular to each other.

[0011] In an optional embodiment, the pole piece punching angle device also includes a linear drive assembly. For any group of punching assemblies, multiple punching modules in the punching assembly can move along a third direction relative to the connecting plate. The linear drive assembly is connected to the two groups of punching assemblies. The linear drive assembly is used to drive the multiple punching modules in each group of punching assemblies to move along the third direction relative to the corresponding connecting plate.

[0012] In an optional embodiment, each connecting plate is provided with a first guide rail, and a plurality of first sliding blocks are provided on the first guide rail, and the plurality of first sliding blocks are connected one-to-one with a plurality of punching modules in each group of punching assemblies.

[0013] In an optional embodiment, the linear drive assembly includes a linear drive member and a connecting base plate mounted on the frame, the connecting base plate is provided with a second guide rail, the second guide rail is provided with a second slider, and the linear drive member is used to drive the second slider to move along the third direction;

[0014] The pole piece punching angle device also includes a mounting plate, which is mounted on the second slider, and two sets of punching components are spaced apart on the mounting plate along the first direction.

[0015] In an optional embodiment, the connection assembly further includes two third guide rails, the two third guide rails are spaced apart on the frame along the first direction, the two connection plates are connected to the two third guide rails in a one-to-one correspondence, and the third guide rails extend along the second direction.

[0016] In an optional embodiment, the pole piece punching angle device also includes a mounting plate, which is connected to the frame, and two groups of punching components are arranged on the mounting plate at intervals along a first direction, each group of punching components also includes a connected first adjusting member and a lower bottom plate of the mold, and the lower bottom plate of the mold is arranged on the mounting plate. Multiple punching modules in each group of punching components are arranged on the lower bottom plate of the mold at intervals along a third direction, and the first adjusting member is used to drive the lower bottom plate of the mold to move relative to the mounting plate along the first direction.

[0017] In an optional embodiment, each group of punching and cutting components also includes two second adjustment members connected to the lower bottom plate of the mold, the two second adjustment members are respectively arranged at the two ends of the lower bottom plate of the mold in the third direction, and the two second adjustment members are located on both sides of the first adjustment member. The second adjustment members are used to drive the lower bottom plate of the mold to move relative to the mounting plate along the first direction.

[0018] In an optional embodiment, the mounting plate is provided with a first connecting block and two second connecting blocks;

[0019] The first connecting block is provided with a threaded hole for threaded engagement with the first adjusting member, and the lower bottom plate of the mold is provided with a first blind hole for engagement with the first adjusting member; and / or, the second connecting block is provided with a threaded hole for threaded engagement with the second adjusting member, and the lower bottom plate of the mold is provided with two second blind holes for engagement with the two second adjusting members respectively.

[0020] In an optional embodiment, each group of punching and shearing components also includes a third adjusting member, a mold lower bottom plate and a mold upper bottom plate. The mold lower bottom plate is installed on the frame, and the mold upper bottom plate is installed on the mold lower bottom plate. Multiple punching and shearing modules in each group of punching and shearing components are arranged on the mold upper bottom plate at intervals along a third direction. The third adjusting member is connected to the mold lower bottom plate to drive the mold lower bottom plate to move relative to the frame along the third direction.

[0021] In an optional embodiment, each group of punching components also includes a fourth adjusting member, and a fourth adjusting member is arranged between any two adjacent punching modules. The fourth adjusting member includes a driving end and a fixed end, the fixed end is connected to one punching module, and the driving end is connected to another punching module. The fourth adjusting member is used to adjust the spacing between two adjacent punching modules in a third direction.

[0022] The beneficial effects of the embodiments of the utility model are as follows: the embodiment of the utility model provides a punching angle device including a frame, a connecting assembly, a driving assembly and two groups of punching assemblies. The connecting assembly includes two connecting plates, and the two connecting plates are spaced apart on the frame along a first direction. The driving assembly includes two driving members, and the two driving members are respectively connected to the connecting plates, and the driving members are used to drive the connecting plates to move relative to the frame along a second direction. The two groups of punching assemblies are spaced apart on the frame along the first direction, and each group of punching assemblies includes a plurality of punching modules spaced apart along a third direction, and a plurality of punching modules of each group of punching assemblies are connected to a connecting plate. The punching angle assembly in this embodiment only requires two driving members to drive the two groups of punching assemblies to move up and down, which effectively reduces the number of driving members, thereby reducing the cost of the overall punching angle device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a pole piece punching angle device provided in an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the installation of the punching assembly and the connecting bottom plate provided in an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the punching assembly provided in an embodiment of the utility model;

[0027] Figure 4 A schematic structural diagram of a punching module provided in an embodiment of the utility model.

[0028] Icons: 1-pole piece punching angle device; 100-frame; 210-connecting plate; 211-first guide rail; 212-first slider; 220-third guide rail; 310-driving member; 400-punching assembly; 410-punching die set; 411-mold base; 412-mold guide column; 413-waste suction pipe; 414-angle punching knife die; 415-mold upper plate; 416-connecting part; 417-fine-tuning member; 420-mold upper bottom plate; 430-mold lower bottom plate; 440-first adjusting member; 450-second adjusting member; 460-third adjusting member; 470-fourth adjusting member; 500-linear driving assembly; 510-connecting bottom plate; 520-second guide rail; 530-second slider; 600-mounting plate; 610-first connecting block; 620-second connecting block; 700-pole piece guiding mechanism. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The specific structure of a corner punching device provided by an embodiment of the utility model and the corresponding technical effects it brings are described in detail below in conjunction with the patent drawings.

[0036] Please refer to Figure 1-Figure 2 The pole piece punching angle device 1 provided in the embodiment of the utility model includes a frame 100, a connecting component, a driving component and two sets of punching components 400.

[0037] The connecting assembly includes two connecting plates 210, which are spaced apart on the frame 100 along the first direction, and the driving assembly includes two driving members 310, which are respectively connected to the connecting plates 210, and the driving members 310 are used to drive the connecting plates 210 to move along the second direction relative to the frame 100. Two groups of punching assemblies 400 are spaced apart on the frame 100 along the first direction, and each group of punching assemblies 400 includes a plurality of punching dies 410 spaced apart along the third direction, and a plurality of punching dies 410 of each group of punching assemblies 400 are connected to one connecting plate 210.

[0038] That is, each connecting plate 210 is connected to a plurality of punching dies 410 in one punching assembly 400. The first direction, the second direction and the third direction are perpendicular to each other.

[0039] In detail, Figure 1 For reference, the first direction Z is the front-to-back direction, the second direction Y is the up-down direction, and the third direction X is the left-right direction. It should be noted that the verticality mentioned above is not only understood as verticality in a strict sense, but can also be approximately vertical.

[0040] It can be understood that the two groups of punching assemblies 400 are opposite to each other along the first direction, and each group of punching assemblies 400 includes a plurality of punching dies 410 arranged at intervals along the third direction. That is, the plurality of punching dies 410 in the two groups of punching assemblies 400 are arranged opposite to each other along the first direction. The punching dies 410 in each group of punching assemblies 400 can be driven by a connecting plate 210 to move in the up-down direction, thereby punching the electrode sheet.

[0041] Compared with the existing pole piece punching angle device 1, every two punching modules 410 arranged at intervals along the first direction form a pair. The pole piece punching angle device 1 has multiple pairs of punching modules 410, and each pair of punching modules 410 requires two driving members 310. The two driving members 310 respectively drive the two punching modules 410 to move up and down, thereby realizing the punching of the pole piece, which is relatively costly.

[0042] In the present embodiment, two connecting plates 210 are respectively connected to two groups of punching assemblies 400. When the driving member 310 drives the connecting plate 210 to move in the second direction, it can drive the punching module 410 in the punching assembly 400 to move in the second direction, thereby realizing the punching of the pole piece. That is to say, the punching angle assembly in the present embodiment only needs two driving members 310 to drive the two groups of punching assemblies 400 to move up and down, which effectively reduces the number of driving members 310, thereby reducing the cost of the overall pole piece punching angle device 1.

[0043] The pole piece punching device also includes two pole piece guiding mechanisms 700, which are respectively located on both sides of the frame 100 in the third direction. The pole piece guiding mechanisms 700 can guide the pole piece to prevent the pole piece from being displaced when entering the V-angle platform.

[0044] In detail, in the present embodiment, the driving member 310 includes a driving motor and a cam mechanism, which drives the cam mechanism to rotate. The cam mechanism is disposed through the connecting plate 210. When the driving motor drives the cam mechanism to rotate, the connecting plate 210 can be driven to move up and down. In other words, when the driving motor drives the cam mechanism to rotate one circle, the connecting plate 210 completes an up and down movement, that is, the two groups of punching assemblies 400 complete a punching action.

[0045] Of course, in some other optional embodiments, the driving member 310 may not be a driving motor and a cam mechanism, but may be other linear driving mechanisms as long as it can drive the connecting plate 210 to move in the second direction.

[0046] Optionally, in order to ensure that the connecting plate 210 moves stably in the second direction, the connecting assembly further includes two third guide rails 220, the two third guide rails 220 are arranged on the frame 100 at intervals along the first direction, the two connecting plates 210 are arranged on the mounting plate 600 in a one-to-one correspondence, and the third guide rails 220 extend along the second direction. It can be understood that under the action of the third guide rails 220, the stability of the connecting plate 210 moving in the second direction can be improved, thereby improving the punching stability of the punching module 410.

[0047] For any group of punching assemblies 400, the multiple punching modules 410 in the punching assemblies 400 can move along the third direction relative to the connecting plate 210. The pole piece angle device also includes a linear drive assembly 500, which is connected to the two groups of punching assemblies 400. The linear drive assembly 500 is used to drive the multiple punching modules 410 in each group of punching assemblies 400 to move along the third direction relative to the connecting plate 210.

[0048] It can be understood that when punching the pole piece at a V angle, when the pole piece passes through the machine of the frame 100, when the movement speed of the pole piece in the third direction is equal to the movement speed of the punching module 410 in the third direction, the driving member 310 drives the connecting plate 210 to drive the two sets of punching assemblies 400 to punch the V angle. In other words, the punching modules 410 in the two sets of punching assemblies 400 can be driven to move in the third direction by the linear driving assembly 500 to adapt to the movement of the pole piece in the third direction.

[0049] In detail, each connecting plate 210 is provided with a first guide rail 211, and a plurality of first sliders 212 are provided on the first guide rail 211, and the plurality of first sliders 212 are connected one-to-one with the plurality of punching dies 410 in each punching assembly 400. It can be understood that the arrangement of the first guide rail 211 and the first slider 212 can facilitate the punching dies 410 to slide relative to the connecting plate 210.

[0050] The linear drive assembly 500 includes a linear drive member (not shown in the figure) and a connecting base plate 510 installed on the frame 100, a second guide rail 520 is provided on the connecting base plate 510, and a second slider 530 is provided on the second guide rail 520. The linear drive member is used to drive the second slider 530 to move along the third direction. The pole piece punching angle device 1 also includes a mounting plate 600, and the mounting plate 600 is mounted on the second slider 530. That is, the second slider 530 can drive the mounting plate 600 to move along the third direction during the movement along the third direction. The two sets of punching assemblies 400 are arranged on the mounting plate 600 at intervals along the first direction. It should be noted that in this embodiment, the two sets of punching assemblies 400 are indirectly arranged on the mounting plate 600.

[0051] It should be noted that the linear drive component can directly drive the second slider 530 to move along the third direction, thereby driving the mounting plate 600 to move along the third direction, or it can directly drive the mounting plate 600 to move in the third direction, so that the mounting plate 600 drives the second slider 530 to move along the third direction relative to the connecting base plate 510.

[0052] In detail, the above-mentioned connecting base plate 510 is at the bottom of the frame 100, and the mounting plate 600 is arranged on the connecting base plate 510 through the second slider 530. The punching assembly 400 also includes a first adjusting member 440 and a mold lower base plate 430 connected to each other. The mold lower base plate 430 is arranged on the mounting plate 600, and the mold lower base plate 430 can move along a first direction relative to the mounting plate 600. The multiple punching modules 410 in each group of the punching assembly 400 are arranged on the mold lower base plate 430 at intervals along a third direction. In this embodiment, the punching module 410 is indirectly arranged on the mold lower base plate 430.

[0053] The first adjusting member 440 is used to drive the mold bottom plate 430 to move relative to the mounting plate 600 along the first direction. Figure 1 For reference, the first adjusting member 440 can drive the mold lower bottom plate 430 to move in the front-to-back direction, thereby driving the punching die set 410 disposed on the mold lower bottom plate 430 to move in the front-to-back direction. It can be understood that the user can adjust the spacing between the two sets of punching assemblies 400 in the first direction through the first adjusting member 440 to accommodate pole pieces of different widths in the two sets of punching assemblies 400.

[0054] Each group of punching components 400 also includes two second adjusting members 450 connected to the mold lower base plate 430, and the two second adjusting members 450 are respectively arranged at the two ends of the mold lower base plate 430 in the third direction, and the two second adjusting members 450 are located on both sides of the first adjusting member 440. The second adjusting members 450 are used to drive the mold lower base plate 430 to move relative to the mounting plate 600 along the first direction.

[0055] In detail, the first adjusting member 440 is arranged at the middle part of the mold lower bottom plate 430 in the third direction, and the two second adjusting members 450 are arranged at the two ends of the mold lower bottom plate 430 in the third direction. By adjusting the second adjusting members 450, the mold lower bottom plates 430 in the two punching assemblies 400 can be adjusted to be parallel, thereby ensuring that the punching modules 410 on the mold lower bottom plates 430 arranged in the two punching assemblies 400 are relative.

[0056] That is to say, in this embodiment, the first adjusting member 440 can be used to drive the mold lower base plate 430 to move in the third direction, thereby adjusting the spacing between the two groups of punching components 400 in the first direction, and then the two second adjusting members 450 can be used to fine-tune the two sides of the mold lower base plate 430 in the first direction so that the parallelism of the mold lower base plates 430 of the two groups of punching components 400 meets the requirements.

[0057] Optionally, the mounting plate 600 is provided with a first connecting block 610 and two second connecting blocks 620, the first connecting block 610 is provided with a threaded hole for threaded cooperation with the first adjusting member 440, and the lower base plate 430 of the mold is provided with a first blind hole cooperating with the first adjusting member 440. It can be understood that the first adjusting member 440 is provided with an external thread threadedly connected to the first connecting block 610, and the first adjusting member 440 cooperates with the first blind hole after being connected to the first connecting block 610, and the first adjusting member 440 can rotate along its own axis in the first blind hole. When the user screws the first adjusting member 440, the first adjusting member 440 can move along its own axis direction, that is, the first adjusting member 440 can move in the first direction, and the first adjusting member 440 and one end of the first blind hole can drive the lower base plate 430 of the mold to move along the first direction.

[0058] Of course, in some other optional embodiments, the hole opened in the first connecting block 610 and cooperating with the first adjusting member 440 can also be a through hole instead of a threaded hole. The first adjusting member 440 can pass through the through hole of the first adjusting member 440 and can move along the first direction relative to the first connecting block 610. The first adjusting member 440 is passed through the through hole of the first connecting block 610 and is connected to the lower base plate 430 of the mold. The user can drive the first adjusting member 440 to move along the first direction so that the lower base plate 430 of the mold moves along the first direction.

[0059] Of course, in some other embodiments, the first adjusting member 440 may be directly connected to the mold lower base plate 430 , and the user may push and pull the first adjusting member 440 in the first direction to drive the mold lower base plate 430 to move along the first direction.

[0060] Optionally, the second connecting block 620 is provided with a threaded hole for threaded cooperation with the second adjusting member 450, and the mold lower base plate 430 is provided with two second blind holes respectively cooperated with the two second adjusting members 450. Similarly to the above, after the second adjusting member 450 is connected to the second connecting block 620, it cooperates with the second blind hole, and the second adjusting member 450 can rotate along its own axis in the second blind hole. When the user screws the second adjusting member 450, the second adjusting member 450 can move along its own axis direction, that is, the second adjusting member 450 can move in the second direction, and the second adjusting member 450 and one end of the second blind hole can drive the mold lower base plate 430 to move in the first direction.

[0061] The user can adjust the parallelism of the mold lower bottom plate 430 by screwing the second adjusting members 450 provided on both sides of the mold bottom plate in the third direction.

[0062] Please refer to Figure 3 Each group of punching components 400 also includes a third adjustment key and a mold upper bottom plate 420. The mold upper bottom plate is installed on the above-mentioned mold lower bottom plate 430. The multiple punching modules 410 in each group of punching components 400 are arranged on the mold upper bottom plate 420 at intervals along the third direction. It should be noted that the multiple punching modules 410 are directly installed on the mold upper bottom plate 420.

[0063] The third adjusting member 460 is connected to the mold lower bottom plate 430 and is used to drive the mold upper plate to move along the third direction relative to the frame 100.

[0064] In detail, the mold lower base plate 430 is connected to the mounting plate 600, and the mounting plate 600 is connected to the connecting base plate 510 via the second slider 530. When the user manually applies a force along the third direction to the third adjustment member 460, a force along the third direction can be applied to the mounting plate 600, thereby driving the mounting plate 600 to move along the third direction. It can be understood that the user can align the two sets of punching components 400 in the first direction through the third adjustment member 460.

[0065] Optionally, each group of punching components 400 also includes a fourth adjusting member 470, and a fourth adjusting member 470 is arranged between any two adjacent punching modules. The fourth adjusting member 470 includes a driving end and a fixed end, the fixed end is connected to one of the two adjacent punching modules, and the driving end is connected to the other of the two adjacent punching modules. The fourth adjusting member 470 is used to adjust the spacing between two adjacent punching modules 410 in the third direction.

[0066] That is to say, the driving end of the fourth adjusting member 470 can move in the third direction, and the punching module can move in the third direction relative to the upper bottom plate 420 of the mold. Under the action of the fourth adjusting member 470, the distance between two adjacent punching modules 410 can be changed to adapt to different process requirements.

[0067] Specifically, the fixed end may be a spiral tube, and the driving end may be a screw rod. Turning the screw rod can cause the screw rod to move away from the fixed end, thereby changing the spacing between two adjacent punching and cutting dies.

[0068] Please continue to refer to Figure 3In detail, in this embodiment, the number of punching dies 410 in each punching assembly 400 is five, and the five punching dies 410 are arranged at intervals on the mold upper floor along the third direction. Of course, in other embodiments, the number of punching dies 410 can also be other numbers, such as two, three, four, six or seven.

[0069] by Figure 3 For reference, when the number of punching modules 410 in each punching assembly 400 is odd, for example, when the number of punching modules 410 in the present embodiment is five, the middle punching module 410 among the five punching modules 410 is a fixed module, and for the punching module 410 on the left side of the middle punching module 410, the fixed end of the fourth adjustment member 470 between any two adjacent punching modules 410 is on the right side of the driving end.

[0070] For the punching and cutting dies 410 on the right side of the middle punching and cutting dies 410 , the fixed end of the fourth adjusting member 470 between any two adjacent punching and cutting dies 410 is located on the left side of the driving end.

[0071] That is, the punching die 410 on the left side of the middle punching die 410 can move to the left, and the punching die 410 on the right side of the middle punching die 410 can move to the right.

[0072] Please refer to Figure 4 The detailed punching die set includes a die base 411, a die guide column 412, a waste suction pipe 413, a corner punch die 414 and a die upper plate 415, wherein the die upper plate 415 is provided with a connecting portion 416, and the connecting portion 416 is connected to the first slider 212. The connecting portion 416 can be plugged with the first slider 212, and the connecting portion 416 can also be connected to the first slider 212 through a threaded fastener.

[0073] One end of the mold guide column 412 is inserted into the punching die 414 and connected to the mold base 411. The waste suction pipe 413 is connected to the mold base 411. The other end of the mold guide column 412 is connected to the mold upper plate 415. The mold base 411 is installed on the mold upper bottom plate 420. The waste generated by each punching is discharged into the waste collection device through the waste suction pipe 413.

[0074] Optionally, the punching die set also includes a fine-tuning piece 417, which is disposed on the mold base 411 and connected to the corner punching die 414. The fine-tuning piece 417 is used to adjust the movement of the corner punching die 414 in the first direction to ensure that the multiple punching die sets in each group are flush in the third direction.

[0075] In summary, a pole piece punching angle device 1 provided in an embodiment of the utility model includes a frame 100, a connecting assembly, a driving assembly and two groups of punching assemblies 400. The connecting assembly includes two connecting plates 210, which are spaced apart on the frame 100 along a first direction, and the driving assembly includes two driving members 310, which are respectively connected to the connecting plates 210, and the driving members 310 are used to drive the connecting plates 210 to move relative to the frame 100 along a second direction. Two groups of punching assemblies 400 are spaced apart on the frame 100 along the first direction, and each group of punching assemblies 400 includes a plurality of punching modules 410 spaced apart along a third direction, and a plurality of punching modules 410 of each group of punching assemblies 400 are connected to a connecting plate 210. The punching angle assembly in this embodiment only needs two driving members 310 to drive the two groups of punching assemblies 400 to move up and down, which effectively reduces the number of driving members 310, thereby reducing the cost of the overall pole piece punching angle device 1.

[0076] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pole piece punching angle device, characterized in that: include: frame; A connecting assembly, the connecting assembly comprising two connecting plates, the two connecting plates being spaced apart and arranged on the frame along a first direction; A driving assembly, the driving assembly comprising two driving members, the two driving members are respectively connected to the connecting plate, and the driving members are used to drive the connecting plate to move relative to the frame along the second direction; Two groups of punching assemblies, the two groups of punching assemblies are arranged on the frame at intervals along the first direction, each group of the punching assemblies includes a plurality of punching modules arranged at intervals along the third direction, the plurality of punching modules in each group of the punching assemblies are connected to a connecting plate, and the first direction, the second direction and the third direction are perpendicular to each other.

2. The pole piece punching angle device according to claim 1, characterized in that: The pole piece punching angle device also includes a linear drive component. For any group of the punching components, the multiple punching module groups in the punching components can move along the third direction relative to the connecting plate. The linear drive component is connected to the two groups of the punching components. The linear drive component is used to drive the multiple punching module groups in each group of the punching components to move along the third direction relative to the corresponding connecting plate.

3. The pole piece punching angle device according to claim 2, characterized in that: Each of the connecting plates is provided with a first guide rail, and a plurality of first sliding blocks are provided on the first guide rail. The plurality of first sliding blocks are connected to the plurality of punching modules in each group of the punching assemblies in a one-to-one correspondence.

4. The pole piece punching angle device according to claim 2, characterized in that: The linear drive assembly includes a linear drive member and a connecting base plate mounted on the frame, the connecting base plate is provided with a second guide rail, the second guide rail is provided with a second slider, and the linear drive member is used to drive the second slider to move along the third direction; The pole piece punching angle device also includes a mounting plate, the mounting plate is mounted on the second slider, and two groups of the punching components are spaced apart on the mounting plate along the first direction.

5. The pole piece punching angle device according to claim 1, characterized in that: The connection assembly further includes two third guide rails, which are spaced apart on the frame along the first direction, and the two connection plates are connected to the two third guide rails in a one-to-one correspondence, and the third guide rails extend along the second direction.

6. The pole piece punching angle device according to claim 1, characterized in that: The pole piece punching angle device also includes a mounting plate, which is connected to the frame, and two groups of the punching components are arranged on the mounting plate at intervals along the first direction, and each group of the punching components also includes a connected first adjusting member and a lower bottom plate of the mold, and the lower bottom plate of the mold is arranged on the mounting plate. Multiple punching modules in each group of the punching components are arranged on the lower bottom plate of the mold at intervals along the third direction, and the first adjusting member is used to drive the lower bottom plate of the mold to move relative to the mounting plate along the first direction.

7. The pole piece punching angle device according to claim 6, characterized in that: Each group of the punching and cutting components also includes two second adjusting members connected to the lower bottom plate of the mold, the two second adjusting members are respectively arranged at the two ends of the lower bottom plate of the mold in the third direction, and the two second adjusting members are located on both sides of the first adjusting member, and the second adjusting members are used to drive the lower bottom plate of the mold to move relative to the mounting plate along the first direction.

8. The pole piece punching angle device according to claim 7, characterized in that: The mounting plate is provided with a first connecting block and two second connecting blocks; The first connecting block is provided with a threaded hole for threaded engagement with the first adjusting member, and the lower base plate of the mold is provided with a first blind hole for engagement with the first adjusting member; and / or, the second connecting block is provided with a threaded hole for threaded engagement with the second adjusting member, and the lower base plate of the mold is provided with two second blind holes for engagement with two second adjusting members respectively.

9. The pole piece punching angle device according to claim 1, characterized in that: Each group of the punching and shearing components also includes a third adjusting member, a mold lower bottom plate and a mold upper bottom plate, the mold lower bottom plate is installed on the frame, the mold upper bottom plate is installed on the mold lower bottom plate, and multiple punching and shearing die sets in each group of the punching and shearing components are arranged on the mold upper bottom plate at intervals along the third direction, and the third adjusting member is connected to the mold lower bottom plate to drive the mold lower bottom plate to move relative to the frame along the third direction.

10. The pole piece punching angle device according to claim 9, characterized in that: Each group of the punching and cutting components also includes a fourth adjusting member, and a fourth adjusting member is arranged between any two adjacent punching and cutting module groups. The fourth adjusting member includes a driving end and a fixed end, the fixed end is connected to one of the punching and cutting modules, and the driving end is connected to another of the punching and cutting modules. The fourth adjusting member is used to adjust the spacing between two adjacent punching and cutting modules in the third direction.

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