End plate mounting device and battery production equipment

Abstract

The utility model provides an end plate mounting device and battery production equipment, the end plate mounting device is used for sleeving an end plate on the positive electrode end of a battery cell, the positive electrode end of the battery cell is provided with a tab, the tab is provided with a first end part and a second end part, the first end part is connected with the positive electrode end, and the second end part is one end far away from the positive electrode end. The device comprises a jig, an end plate clamping assembly, a first tab holding assembly and a second tab holding assembly, wherein the jig is used for bearing and fixing a battery cell; the end plate clamping assembly is used for clamping an end plate and driving the end plate to move; the first tab retaining assembly has a retaining state and an avoiding state, is in contact with the middle position of the tab when in the retaining state so as to prevent the tab from drooping, and avoids the sleeving path of the end plate when in the avoiding state; the second tab holding assembly is configured to be in contact with the second end part of the tab when the first tab holding assembly is in the avoiding state and the second end part of the tab penetrates through the end plate, so as to prevent the tab from drooping.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and particularly to an end plate mounting device and a battery production equipment. Background Art

[0002] During the battery production process, an end plate needs to be sleeved on the positive end of the battery cell. However, since there are tabs on the positive end of the battery cell, the tabs are long and soft in texture. When directly sleeving the end plate on the positive end of the battery cell, during the operation of sleeving the end plate, the tabs are extremely likely to sag, which may cause the tabs to fold between the battery cell and the Mylar, and may lead to safety hazards such as short circuits, affecting the performance and quality of the battery. Utility Model Content

[0003] The present application discloses an end plate mounting device and a battery production equipment, which can prevent the tabs from sagging during the operation of sleeving the end plate, and ensure the performance and quality of the battery.

[0004] To achieve the above object, the present application discloses an end plate mounting device for sleeving an end plate on the positive end of a battery cell. The positive end of the battery cell is provided with the tabs. The tabs have a first end and a second end. The first end is connected to the positive end, and the second end is the end far from the positive end. The end plate mounting device includes:

[0005] A jig for carrying and fixing the battery cell;

[0006] An end plate clamping assembly for clamping the end plate and driving the end plate to move so that the end plate is sleeved on the positive end;

[0007] A first tab holding assembly having a holding state and an avoidance state. When the first tab holding assembly is in the holding state, it contacts the middle position of the tab to prevent the tab from sagging. When the first tab holding assembly is in the avoidance state, it avoids the sleeving path of the end plate;

[0008] A second tab holding assembly configured to contact the second end of the tab to prevent the tab from sagging when the first tab holding assembly is in the avoidance state and the second end of the tab passes through the end plate.

[0009] Optionally, the second tab holding assembly includes a tab support and a second driving structure connected to the tab support. The tab support is movably disposed on the jig in the first direction, and the second driving structure is configured to drive the tab support to move closer to or away from the tab in the first direction. When the tab support moves closer to the tab, it can support the second end of the tab, and the first direction is parallel to the arrangement direction of the positive and negative electrodes of the battery cell.

[0010] Optionally, the tab support includes a support inclined surface for supporting the second end. In the first direction, the height of the support inclined surface decreases along the direction close to the jig.

[0011] Optionally, the jig includes:

[0012] A carrier for carrying the battery cell;

[0013] A battery cell positioning structure including a first positioning member and a second positioning member. The first positioning member and the second positioning member are symmetrically disposed on both sides of the carrier in the first direction and can move closer to or away from each other in the first direction. The first positioning member is configured to abut against the positive electrode of the battery cell, and the second positioning member is configured to abut against the negative electrode of the battery cell;

[0014] The tab support is disposed on the first positioning member.

[0015] Optionally, the first positioning member is slidably disposed on the carrier in the first direction, and a first contact portion is provided on the first positioning member;

[0016] The second driving structure includes a reset member and a second driving member disposed between the first positioning member and the carrier. The reset member is configured to provide a reset force to the first positioning member in the first direction to move towards the battery cell, and a second contact portion is provided on the second driving member. When the second driving member drives the second contact portion to move away from the battery cell in the first direction, the second contact portion is configured to cooperate with the first contact portion in a blocking manner to define the position of the first positioning member in the first direction away from the battery cell.

[0017] Optionally, the end plate clamping assembly includes a first frame and an end plate clamping member. The end plate clamping member is movably disposed on the first frame in the first direction, and the end plate is disposed on the first frame in the vertical direction.

[0018] Optionally, a guiding slide rail is provided on the first frame, the guiding slide rail extends in the first direction, and a guiding slider slidably engaged with the guiding slide rail is provided on the end plate clamping member.

[0019] Optionally, the end plate clamp is slidably arranged on the guide slider in the vertical direction.

[0020] Optionally, the end plate clamp includes a jaw, and a limiting protrusion is arranged on the jaw. When the jaw clamps the end plate, the limiting protrusion is used to limit the end plate in the vertical direction.

[0021] Optionally, the first tab holding assembly includes a second frame body, a first clamping member and a second clamping member that are movably arranged on the second frame body in the vertical direction. The first clamping member and the second clamping member can approach or move away from each other in the vertical direction. The first clamping member and the second clamping member are respectively located on both sides of the tab in the vertical direction and correspond to the middle position of the tab in the vertical direction.

[0022] This embodiment also provides a battery production device, which includes:

[0023] The above-mentioned end plate mounting device;

[0024] A frame, on which a plurality of stations are arranged, and the plurality of stations are used for processing the battery cells carried on the fixture in different processes;

[0025] The fixture is movably arranged on the frame along the arrangement direction of the plurality of stations to transfer the battery cells carried on the fixture to any one of the stations.

[0026] Compared with the prior art, the beneficial effects of the present application are as follows:

[0027] Therefore, when the end plate is sleeved on the positive terminal of the battery cell, the battery cell with the positive pole ear is first placed on the jig to ensure that the battery cell is firmly fixed and will not move or shake during operation. The first pole ear holding assembly is then placed in a holding state so that the first pole ear holding assembly is in contact with the middle position of the pole ear. At this time, the first pole ear holding assembly provides support for the middle position of the pole ear to prevent it from sagging. The end plate clamping assembly is then used to clamp the end plate and drive the end plate to move toward the positive terminal of the battery cell to sleeve the end plate from the second end toward the positive terminal. As the end plate continues to approach the middle position of the pole ear, when the first pole ear holding assembly prevents the end plate from continuing to move forward, the first pole ear holding assembly The component switches to the avoidance state, avoiding the installation path of the end plate so that the end plate can continue to be installed smoothly. At this time, the second pole lug holding assembly contacts the second end of the pole lug to support the second end of the pole lug, thereby preventing the pole lug from sagging. The end plate clamping assembly continues to push the end plate until the end plate is completely installed on the positive end of the battery cell to complete the installation operation of the end plate. Through the coordinated work of the first pole lug holding assembly and the second pole lug holding assembly, the pole lug can always be effectively supported and restricted during the entire end plate installation process, thereby preventing the pole lug from sagging and avoiding the pole lug from folding between the battery cell and the Mylar during the end plate installation process to prevent the performance of the battery from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 is a schematic diagram of the structure of the battery cell in the embodiment of the present application;

[0030] Figure 2 is a top view of a battery cell in an embodiment of the present application;

[0031] Figure 3 is a schematic diagram of a partial structure of an end plate mounting device provided in an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of another part of the structure of the end plate mounting device provided in an embodiment of the present application;

[0033] Figure 5 is a top view of a fixture provided in an embodiment of the present application;

[0034] Figure 6 is a bottom view of the fixture provided in an embodiment of the present application;

[0035] Figure 7It is a schematic structural diagram of the tab support provided by an embodiment of the present application;

[0036] Figure 8 It is Figure 7 the front view of;

[0037] Figure 9 It is a schematic diagram of the second driving structure provided by an embodiment of the present application;

[0038] Figure 10 It is the top view of the second driving structure provided by an embodiment of the present application;

[0039] Figure 11 It is a schematic diagram of the end plate clamping assembly provided by an embodiment of the present application;

[0040] Figure 12 It is the side view of the end plate clamping assembly provided by an embodiment of the present application;

[0041] Figure 13 It is the top view of the end plate clamping assembly provided by an embodiment of the present application;

[0042] Figure 14 It is Figure 12 the enlarged view of part A in;

[0043] Figure 15 It is the side view of the first tab holding assembly provided by an embodiment of the present application;

[0044] Figure 16 It is Figure 15 the enlarged view of part B in.

[0045] Main reference numeral description

[0046] 1 - End plate installation device;

[0047] 10 - End plate;

[0048] 20 - Battery cell; 21 - Tab; 21a - First end; 21b - Second end;

[0049] 30 - Mylar film;

[0050] 100 - Fixture; 110 - Carrier; 120 - Battery cell positioning structure; 1201 - First positioning member; 12011 - First contact portion; 1202 - Second positioning member; 1203 - Connecting member;

[0051] 200 - End plate clamping assembly; 210 - First frame; 2101 - Guide rail; 220 - End plate clamping member; 2201 - Guide slider; 2202 - Jaw; 22021 - Limit projection;

[0052] 300 - First tab retaining assembly; 310 - Second frame; 3201 - First clamping member; 3202 - Second clamping member;

[0053] 400 - Second tab retaining assembly; 410 - Tab support member; 4101 - Support inclined surface; 420 - Second driving structure; 4201 - Reset member; 4202 - Second driving member; 42021 - Second contact portion. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0055] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0056] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0057] In addition, the terms "mount", "set", "provided with", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0058] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components. The specific types and structures may be the same or different, and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0059] As mentioned in the background art, since there is an ear on the positive electrode end of the battery cell, the ear is relatively long and soft in texture. When directly sleeving the end plate on the positive electrode end of the battery cell, during the operation of sleeving the end plate, the ear is extremely easy to sag, which may cause the ear to fold between the battery cell and the Mylar, and may lead to safety hazards such as short circuits, affecting the performance and quality of the battery.

[0060] To solve the above problems, the embodiment of the present application provides an end plate installation device and a battery production device. Through the coordinated work of the first ear holding component and the second ear holding component, the end plate installation device can always provide effective support and restriction for the ear during the entire process of sleeving the end plate, thereby preventing the ear from sagging and avoiding the ear folding between the battery cell and the Mylar during the process of sleeving the end plate, so as to prevent the performance of the battery from being affected.

[0061] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0062] See Figures 1 to 5 , this embodiment provides an end plate installation device 1 for sleeving an end plate 10 on the positive electrode end of a battery cell 20. There is an ear 21 on the positive electrode end of the battery cell. The ear 21 has a first end 21a and a second end 21b. The first end 21a is connected to the positive electrode end, and the second end 21b is the end far from the positive electrode end. The end plate installation device 1 includes: a jig 100, an end plate clamping component 200, a first ear holding component 300, and a second ear holding component 400. The jig 100 is used to carry and fix the battery cell 20; the end plate clamping component 200 is used to clamp the end plate 10 and drive the end plate 10 to move so that the end plate 10 is sleeved on the positive electrode end; the first ear holding component 300 has a holding state and an avoidance state. When the first ear holding component 300 is in the holding state, it contacts the middle position of the ear 21 to prevent the ear 21 from sagging. When the first ear holding component 300 is in the avoidance state, it avoids the sleeving path of the end plate; the second ear holding component 400 is configured to contact the second end 21b of the ear when the first ear holding component 300 is in the avoidance state and the second end 21b of the ear passes through the end plate 10 to prevent the ear from sagging.

[0063] Thus, when the end plate 10 is sleeved on the positive end of the battery cell 20, first place the battery cell 20 with the tab 21 on the jig 100 to ensure that the battery cell 20 is firmly fixed and will not move or shake during the operation. Then, keep the first tab holding assembly 300 in a holding state so that the first tab holding assembly 300 contacts the middle position of the tab 21. At this time, the first tab holding assembly 300 provides support for the middle position of the tab 21 to prevent it from sagging. Then, use the end plate clamping assembly 200 to clamp the end plate 10 and drive the end plate 10 to move towards the positive end of the battery cell 20 to sleeve the end plate 10 from the second end 21b towards the positive end. As the end plate 10 continuously approaches the middle position of the tab 21, when the first tab holding assembly 300 obstructs the continuous advancement of the end plate 10, the first tab holding assembly 300 switches to an avoidance state to avoid the sleeving path of the end plate 10 so that the end plate 10 can continue to be sleeved smoothly. At this time, the second tab holding assembly 400 contacts the second end 21b of the tab 21 to support the second end 21b of the tab 21, thereby preventing the tab 21 from sagging. The end plate clamping assembly 200 continues to push the end plate 10 until the end plate 10 is completely sleeved on the positive end of the battery cell 20 to complete the sleeving operation of the end plate 10. Through the coordinated work of the first tab holding assembly 300 and the second tab holding assembly 400, effective support and restriction can always be provided for the tab 21 during the entire sleeving process of the end plate 10, thereby preventing the tab 21 from sagging and avoiding the tab 21 from folding between the battery cell 20 and the mylar film 30 during the sleeving of the end plate 10, so as to prevent the performance of the battery from being affected.

[0064] In a possible embodiment, refer to Figures 4 to 6 , the second tab holding assembly 400 includes a tab support 410 and a second driving structure 420 connected to the tab support 410. The tab support 410 is movably disposed on the jig 100 in a first direction. The second driving structure 420 is used to drive the tab support 410 to move closer to or away from the tab 21 in the first direction. When the tab support 410 moves closer to the tab 21, it can support the second end 21b of the tab 21. The first direction is parallel to the arrangement direction of the positive end and the negative end of the battery cell 20.

[0065] Wherein, the above-mentioned first direction is Figure 6 the direction indicated by the arrow X in

[0066] By movably arranging the tab support 410 in the first direction and precisely driving it to move closer to or away from the tab by the second driving structure 420, the tab support 410 can accurately reach the second end 21b of the tab 21 and support the second end 21b, ensuring the accurate position of the tab 21 in the first direction, avoiding the influence of the position deviation of the tab 21 on the operation of sleeving the end plate 10. Moreover, since the second driving structure 420 can flexibly drive the tab support 410, the second tab holding assembly 400 can adapt to battery cells 20 of different lengths, shapes, and specifications. For example, when it is necessary to switch different models of battery cells 20 on the production line, there is no need to replace the entire second tab holding assembly 400, and only the position of the tab support 410 needs to be adjusted through the second driving structure 420.

[0067] In a possible embodiment, referring to Figure 7 , the tab support 410 includes a support inclined surface 4101 for supporting the second end 21b. In the first direction, the height of the support inclined surface 4101 decreases along the direction approaching the jig 100.

[0068] Thus, when it is necessary to support the second end 21b of the tab 21, as the second driving structure 420 drives the tab support 410 to move closer to the tab 21 in the first direction, the second end 21b of the tab 21 will gradually contact the support inclined surface 4101. Since the height of the support inclined surface 4101 decreases along the direction approaching the jig 100, the tab 21 will be gradually lifted along the support inclined surface 4101 until it reaches a stable support position. The support inclined surface 4101 makes the support process of the tab 21 gradual, reducing the instantaneous impact force on the tab 21 and lowering the risk of damage to the tab. In addition, in the first direction, the height of the support inclined surface 4101 decreases along the direction approaching the jig 100, so that when the tab support 410 supports the second end 21b, the sleeving of the end plate 10 will not be interfered by the tab support 410, ensuring that the end plate 10 can be smoothly sleeved on the positive electrode end.

[0069] In a possible embodiment, referring to Figure 5 , the jig 100 includes: a carrier 110 and a battery cell positioning structure 120. The carrier 110 is used to carry the battery cell 20; the battery cell positioning structure 120 includes a first positioning member 1201 and a second positioning member 1202. The first positioning member 1201 and the second positioning member 1202 are symmetrically arranged on both sides of the carrier 110 in the first direction and can approach or move away from each other in the first direction. The first positioning member 1201 is used to abut against the positive electrode end of the battery cell 20, and the second positioning member 1202 is used to abut against the negative electrode end of the battery cell 20; the tab support 410 is arranged on the first positioning member 1201.

[0070] By setting a battery cell positioning structure 120 on the fixture 100, the battery cell positioning structure 120 includes a first positioning member 1201 and a second positioning member 1202. The first positioning member 1201 and the second positioning member 1202 are symmetrically arranged on both sides of the carrier 110 in the first direction, and can be close to or away from each other in the first direction, so that when the battery cell 20 is placed on the carrier 110, the first positioning member 1201 and the second positioning member 1202 are close to each other in the first direction, the first positioning member 1201 abuts against the positive terminal of the battery cell 20, and the second positioning member 1202 abuts against the negative terminal of the battery cell 20, thereby fixing the battery cell 20 at an accurate position on the carrier 110.

[0071] In addition, since the tab support member 410 is disposed on the first positioning member 1201, during the sleeve installation process of the end plate 10, the first positioning member 1201 is first moved away from the positive end in the first direction to expose the second end 21b. At this time, the first tab holding assembly 300 is used to contact the middle position of the tab, and then the end plate clamping assembly 200 is used to sleeve the end plate 10 on the tab 21. When the end plate 10 is sleeved to the position of the first tab holding assembly 300, the first tab holding assembly 300 is In the avoidance state, at this time, the first positioning member 1201 is moved along the first direction toward the fixture 100 to drive the pole ear support member 410 to move toward the second end 21b until the pole ear support member 410 contacts the second end 21b. At this time, the end plate 10 is continued to be sleeved until the end plate 10 is sleeved on the positive end, and the first positioning member 1201 is continued to move toward the fixture 100 until the first positioning member 1201 abuts against the positive end to press the end plate 10 against the positive end to prevent the end plate 10 from falling off.

[0072] In one possible embodiment, see Figures 6 to 10 The first positioning member 1201 is slidably arranged on the supporting member 110 along the first direction, and a first contact portion 12011 is arranged on the first positioning member 1201; the second driving structure 420 includes a reset member 4201 and a second driving member 4202 arranged between the first positioning member 1201 and the supporting member 110, the reset member 4201 is used to provide a reset force to the first positioning member 1201 moving toward the battery cell 20 in the first direction, and a second contact portion 42021 is arranged on the second driving member 4202. When the second driving member 4202 drives the second contact portion 42021 to move away from the battery cell 20 in the first direction, the second contact portion 42021 is used to cooperate with the first contact portion 12011 to stop and limit the position of the first positioning member 1201 in the first direction away from the battery cell 20.

[0073] The reset element 4201 may be any reset element 4201 such as a compression spring, a tension spring, a gas spring, etc., which is not limited here.

[0074] Thus, in the initial state, the reset member 4201 provides a reset force in the first direction to the first positioning member 1201, causing the first positioning member 1201 to be in a position close to the battery cell 20 to position the battery cell 20. When it is necessary to sleave the end plate 10 on the positive electrode end, the second driving member 4202 starts to work to drive the second contact portion 42021 to move away from the battery cell 20 in the first direction. At this time, the second contact portion 42021 and the first contact portion 12011 on the first positioning member 1201 are in a blocking fit, thereby driving the first positioning member 1201 to overcome the reset force of the reset member 4201 and move away from the battery cell 20 in the first direction to define the position of the first positioning member 1201 in the first direction away from the battery cell 20. Through the cooperation of the reset member 4201 and the second driving member 4202, the movement of the first positioning member 1201 can be accurately controlled, realizing the precise positioning and stable release of the battery cell 20, improving the accuracy and reliability of the operation. Moreover, the presence of the reset member 4201 enables the first positioning member 1201 to adaptively adapt to battery cells 20 of different sizes and provide an appropriate positioning force within a certain range. In addition, this structure is relatively simple, reducing complex transmission mechanisms, lowering costs and maintenance difficulties, and also making the operation more convenient. For example, in actual production, when the battery cell 20 is placed on the carrier 110, the first positioning member 1201 quickly approaches the battery cell 20 and accurately positions under the action of the reset member 4201. When it is necessary to remove the battery cell 20 after sleaving the end plate 10, the action of the second driving member 4202 can ensure that the first positioning member 1201 stably moves away from the battery cell 20, avoiding unnecessary damage or obstruction to the battery cell 20.

[0075] Wherein, the movement process and driving mode of the second positioning member 1202 are the same as those of the first positioning member 1201, and will not be elaborated here.

[0076] In a possible embodiment, referring to Figure 7 and Figure 8 , the first positioning member 1201 is fixedly connected to the first contact portion 12011 through a connecting member 1203, and the reset member 4201 is arranged between the connecting member 1203 and the fixture 100.

[0077] In a possible embodiment, referring to Figure 11 and Figure 12 , the end plate clamping assembly 200 includes a first frame 210 and an end plate clamping member 220. The end plate clamping member 220 is movably arranged on the first frame 210 in the first direction and is also movably arranged on the first frame 210 in the vertical direction.

[0078] Thus, when preparing to clamp the end plate 10, the end plate clamp 220 moves in the first direction to the position where the end plate is located, then descends in the vertical direction towards the end plate 10 and clamps the end plate 10. Next, the end plate clamp 220 ascends a certain height in the vertical direction to avoid collision with other components when moving the end plate 10 in the first direction, and moves the end plate 10 in the first direction above the positive electrode end of the battery cell 20. At this time, the end plate clamp 220 descends again in the vertical direction to make the end plate 10 and the battery cell 20 at the same horizontal plane. The end plate clamp 220 moves again in the first direction and sleeves the end plate 10 on the positive electrode end of the battery cell 20. In this way, the end plate clamp 220 can move flexibly in the first direction and the vertical direction, enabling it to adapt to end plates 10 at different positions and heights, and accurately move the end plate 10 to the positive electrode end of the battery cell 20, improving the flexibility and adaptability of the operation. Moreover, the movable setting in the vertical direction helps to precisely control the position of the end plate 10 in the vertical direction, ensuring the sleeving accuracy between the end plate 10 and the positive electrode end of the battery cell 20, reducing errors. Additionally, ascending in the vertical direction first and then moving in the first direction can avoid interference with surrounding components or other installed structures during the movement, improving the safety and stability of the operation.

[0079] In a possible embodiment, referring to Figure 13 , a guiding slide rail 2101 is provided on the first frame body 210. The guiding slide rail 2101 extends in the first direction, and a guiding slider 2201 that is slidably engaged with the guiding slide rail 2101 is provided on the end plate clamp 220.

[0080] The cooperation between the guiding slide rail 2101 and the guiding slider 2201 can ensure that the movement of the end plate clamp 220 in the first direction is more precise, reducing deviation and shaking, thereby improving the position accuracy of the sleeving of the end plate 10. Moreover, it helps the end plate clamp 220 to remain stable during the movement, avoiding jamming or jumping, making the handling and sleeving process of the end plate 10 more stable and reliable. Additionally, the sliding engagement method can effectively reduce the direct friction between components, reduce wear, and extend the service life of the end plate clamping assembly 200.

[0081] In a possible embodiment, referring to Figure 11 and Figure 12 , the end plate clamp 220 is slidably arranged on the guiding slider 2201 in the vertical direction.

[0082] By slidably arranging the end - plate clamping member 220 in the vertical direction on the guiding slider 2201, the movement of the end - plate clamping member 220 in the vertical direction can be precisely controlled independently of its movement in the first direction without interference. This helps to flexibly adjust the height of the end - plate at different stages to meet various operation requirements. Moreover, by connecting with the guiding slider 2201, the support points and guiding properties of the vertical movement are increased, making the sliding of the end - plate clamping member 220 in the vertical direction more stable, reducing shaking and deviation. It can also make full use of the space of the guiding slider 2201, avoiding the additional addition of complex vertical guiding structures and making the structure more compact.

[0083] In a possible embodiment, referring to Figure 12 and Figure 14 , the end - plate clamping member 220 includes a jaw 2202, and a limit protrusion 22021 is arranged on the jaw 2202. When the jaw 2202 clamps the end - plate 10, the limit protrusion 22021 is used to limit the end - plate 10 in the vertical direction.

[0084] By arranging the limit protrusion 22021 on the jaw 2202 of the end - plate clamping member 220 to limit the end - plate 10 in the vertical direction, during the process of the end - plate 10 being clamped and moved by the jaw 2202, the limit protrusion 22021 can provide additional blocking, effectively preventing the end - plate 10 from accidentally slipping in the vertical direction, improving the safety and reliability of the handling process. It can also ensure that the position of the end - plate 10 in the vertical direction always remains stable and accurate, so as to ensure that the end - plate 10 is precisely sleeved on the positive electrode end of the battery cell, which helps to improve the precision and quality of the sleeving.

[0085] Of course, the end - plate clamping member 220 is not limited to the jaw 2202. The end - plate clamping member 220 can also be any form such as a vacuum chuck, a magnetic attachment, etc. Those skilled in the art should be aware of this.

[0086] In a possible embodiment, referring to Figure 15 and Figure 16 , the first tab holding assembly 300 includes a second frame body 310 and a first clamping member 3201 and a second clamping member 3202 that are movably arranged in the vertical direction on the second frame body 310. The first clamping member 3201 and the second clamping member 3202 can approach or separate from each other in the vertical direction. The first clamping member 3201 and the second clamping member 3202 are respectively located on both sides of the tab in the vertical direction and correspond to the middle position of the tab in the vertical direction.

[0087] Accordingly, the first clamping member 3201 and the second clamping member 3202 correspond to the middle position of the tab 21 in the vertical direction, and can accurately clamp and hold the middle position of the tab 21, ensuring the stability of the position of the tab 21. Moreover, since the first clamping member 3201 and the second clamping member 3202 are movably arranged in the vertical direction and can approach or separate from each other, they can adapt to tabs 21 of different heights, increasing the versatility of the device. Furthermore, by clamping on both sides of the tab 21, balanced supporting forces are provided, more effectively preventing the tab 21 from sagging in the vertical direction.

[0088] The embodiment of the present application further provides a battery production device. The battery production device includes the end plate mounting device 1 and the frame in any of the above embodiments. A plurality of stations are provided on the frame, and the plurality of stations are used for processing the battery cells carried on the fixture 100 in different processes; the fixture 100 is movably arranged on the frame along the arrangement direction of the plurality of stations to transfer the battery cells carried on the fixture 100 to any station.

[0089] Among them, the end plate mounting device in the embodiment of the present application may have the same structure as the end plate mounting device 1 in the above embodiment and can bring the same or similar beneficial effects. For details, reference may be made to the description in the above embodiment, and the embodiment of the present application will not be elaborated herein.

[0090] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the end plate mounting device and the battery production device of the present application, and are not intended to limit them; although the end plate mounting device and the battery production device of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An end plate mounting device (1) for sleeving an end plate (10) on the positive electrode end of an electric core (20), wherein a tab (21) is provided on the positive electrode end of the electric core (20), the tab (21) has a first end portion (21a) and a second end portion (21b), the first end portion (21a) is connected to the positive electrode end, and the second end portion (21b) is the end far from the positive electrode end, characterized in that, The end plate mounting device (1) includes: A jig (100) for carrying and fixing the battery cell (20); An end plate clamping assembly (200) for clamping the end plate (10) and driving the end plate (10) to move so that the end plate (10) is sleeved on the positive electrode end; A first tab holding assembly (300) having a holding state and an avoidance state. When the first tab holding assembly (300) is in the holding state, it contacts the middle position of the tab (21) to prevent the tab (21) from sagging. When the first tab holding assembly (300) is in the avoidance state, it avoids the sleeving path of the end plate (10); A second tab holding assembly (400) configured to contact the second end portion (21b) of the tab (21) to prevent the tab (21) from sagging when the first tab holding assembly (300) is in the avoidance state and the second end portion (21b) of the tab (21) passes through the end plate (10).

2. The end plate mounting device (1) according to claim 1, characterized in that, The second tab holding assembly (400) includes a tab support member (410) and a second driving structure (420) connected to the tab support member (410). The tab support member (410) is movably disposed on the jig (100) in a first direction. The second driving structure (420) is used to drive the tab support member (410) to move closer to or away from the tab (21) in the first direction. When the tab support member (410) moves closer to the tab (21), it can support the second end portion (21b) of the tab (21). The first direction is parallel to the arrangement direction of the positive electrode end and the negative electrode end of the battery cell (20).

3. The end plate mounting device (1) according to claim 2, characterized in that, The tab support member (410) includes a support inclined surface (4101) for supporting the second end portion (21b). In the first direction, the height of the support inclined surface (4101) decreases along the direction approaching the jig (100).

4. The end plate mounting device (1) according to claim 2 or 3, characterized in that The jig (100) includes: A carrier (110) for carrying the battery cell (20); A battery cell positioning structure (120) including a first positioning member (1201) and a second positioning member (1202). The first positioning member (1201) and the second positioning member (1202) are symmetrically disposed on both sides of the carrier (110) in the first direction and can approach or move away from each other in the first direction. The first positioning member (1201) is used to abut against the positive electrode end of the battery cell (20), and the second positioning member (1202) is used to abut against the negative electrode end of the battery cell (20); The tab support member (410) is disposed on the first positioning member (1201).

5. The end plate mounting device (1) according to claim 4, characterized in that the first positioning member (1201) is slidably arranged on the carrier member (110) along the first direction, and a first contact portion (12011) is arranged on the first positioning member (1201); the second driving structure (420) includes a reset member (4201) and a second driving member (4202) arranged between the first positioning member (1201) and the carrier member (110). The reset member (4201) is used to provide a reset force for the first positioning member (1201) to move towards the battery cell (20) in the first direction. A second contact portion (42021) is arranged on the second driving member (4202). When the second driving member (4202) drives the second contact portion (42021) to move away from the battery cell (20) in the first direction, the second contact portion (42021) is used to engage with the first contact portion (12011) in a blocking manner to limit the position of the first positioning member (1201) in the first direction away from the battery cell (20).

6. The end plate mounting device (1) according to claim 2, characterized in that, the end plate clamping assembly (200) includes a first frame body (210) and an end plate clamping member (220). The end plate clamping member (220) is movably arranged on the first frame body (210) along the first direction and is also movably arranged on the first frame body (210) along the vertical direction.

7. The end plate mounting device (1) according to claim 6, characterized in that, A guiding slide rail (2101) is arranged on the first frame body (210). The guiding slide rail (2101) extends along the first direction. A guiding slider (2201) that is slidably engaged with the guiding slide rail (2101) is arranged on the end plate clamping member (220).

8. The end plate mounting device (1) according to claim 7, characterized in that, The end plate clamping member (220) is slidably arranged on the guiding slider (2201) along the vertical direction.

9. The end plate mounting device (1) according to claim 7 or 8, characterized in that, The end plate clamping member (220) includes a clamping jaw (2202). A limiting protrusion (22021) is arranged on the clamping jaw. When the clamping jaw (2202) clamps the end plate (10), the limiting protrusion (22021) is used to limit the end plate (10) in the vertical direction.

10. The end plate mounting device (1) according to claim 1, characterized in that, The first tab holding assembly (300) includes a second frame body (310), a first clamping member (3201) and a second clamping member (3202) that are movably arranged on the second frame body (310) along the vertical direction. The first clamping member (3201) and the second clamping member (3202) can approach or separate from each other along the vertical direction. The first clamping member (3201) and the second clamping member (3202) are respectively located on both sides of the tab (21) in the vertical direction and correspond to the middle position of the tab (21) in the vertical direction.

11. A battery production device, characterized in that, The battery production equipment includes: the end plate mounting device (1) according to any one of claims 1 - 10; a frame. A plurality of workstations are arranged on the frame. The plurality of workstations are used for processing the battery cell (20) carried on the fixture (100) through different processes. The fixture (100) is movably arranged on the rack along the arrangement direction of the plurality of stations, so as to transfer the battery cell (20) carried on the fixture (100) to any one of the stations.

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