Battery tab clamping device and battery capacity grading device

Abstract

The utility model discloses a battery tab clamping device and a battery capacity grading device.The battery tab clamping device comprises a clamping support, a first clamping assembly, a second clamping assembly and a first driving mechanism, the first clamping assembly comprises a plurality of first clamping pieces, the second clamping assembly comprises a plurality of second clamping pieces, the first clamping pieces are arranged between the adjacent second clamping pieces, and the second clamping pieces are arranged between the first clamping pieces and the second clamping pieces; the second clamping piece comprises a first surface and a second surface, the first surface is used for clamping a pole lug of a battery with the first clamping piece, the second surface is provided with an avoiding groove, the first driving mechanism is used for driving the first clamping assembly and / or the second clamping assembly to do reciprocating motion, and when the first clamping piece and the second clamping piece on one side get close to each other, the first clamping piece and the second clamping piece on one side get close to each other. The first clamping piece and the second clamping piece are used for clamping the tabs of the battery, when the first clamping piece and the second clamping piece on the other side are close to each other, at least one part of the first clamping piece is located in the avoiding groove, synchronous operation is achieved, clamping consistency is guaranteed, damage caused by collision to the tabs is avoided, and the space is more compact and reasonable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semiconductor technology, and in particular to a battery tab clamping device and a battery capacity grading device. BACKGROUND

[0002] Soft package batteries have the characteristics of good safety performance, light weight, large capacity, small internal resistance and flexible design, and have great application space. However, soft package batteries use soft aluminum plastic film as the battery shell. During formation, capacity grading and other processes, the aluminum plastic film will deform due to uneven stress caused by chemical reactions inside the battery. Therefore, when performing formation, capacity grading and other processes on the battery, uniform pressing force needs to be applied to the battery from the outside.

[0003] Usually, multiple batteries are placed in a battery tray, and the battery tabs are clamped by a clamping device. In the related art, the clamping device usually adopts a scissors-type current clamp, that is, a current clamp is opened and pressed by a push block pushed by a gas cylinder, and the battery tabs are guided into the current clamp for clamping by a tab guiding block. The more channels the battery has, the more push force cylinders are needed, and the cost is correspondingly increased. In addition, it is difficult to ensure the consistency of clamping of each current clamp, and the small opening angle of the current clamp is easy to hit the battery tab. CONTENT OF THE UTILITY MODEL

[0004] The present application discloses a battery tab clamping device and a battery capacity grading device, which can realize synchronous operation of clamping the tabs of multiple batteries, ensure the consistency of clamping, ensure that the tabs will not displace or deform during clamping, avoid damage caused by hitting the tabs, make the space more compact and reasonable, improve the convenience of operation, and improve the reliability of the device.

[0005] In order to achieve the above-mentioned purpose, the present application discloses a battery tab clamping device, comprising:

[0006] a clamping support;

[0007] a first clamping assembly, the first clamping assembly is slidingly arranged on the clamping support along a first direction, the first clamping assembly comprises a plurality of first clamping pieces arranged along the first direction;

[0008] a second clamping assembly, the second clamping assembly is slidingly arranged on the clamping support along the first direction, the second clamping assembly comprises a plurality of second clamping pieces arranged along the first direction, the first clamping piece is arranged between adjacent second clamping pieces, the second clamping piece comprises a first surface and a second surface arranged along the first direction, the first surface is used for clamping the tab of the battery with the first clamping piece, and the second surface is provided with a avoiding slot;

[0009] The first driving mechanism is used to drive the first clamping assembly and / or the second clamping assembly to reciprocate along the first direction. When the first clamping piece and one side of the second clamping piece driven by the first driving mechanism are close to each other, the first clamping piece and the second clamping piece are used to clamp the tab of the battery. When the first clamping piece and the other side of the second clamping piece driven by the first driving mechanism are close to each other, at least a part of the first clamping piece is located in the avoiding slot.

[0010] In a possible implementation, the first clamping assembly comprises a first clamping piece support frame, which is slidingly arranged on the clamping support frame along the first direction. A plurality of first clamping pieces are arranged on the first clamping piece support frame in a spaced and parallel manner.

[0011] In a possible implementation, the second clamping assembly comprises a second clamping piece support frame, which is slidingly arranged on the clamping support frame along the first direction. A plurality of second clamping pieces are arranged on the second clamping piece support frame in a spaced and parallel manner.

[0012] In a possible implementation, the clamping support frame comprises a first guide shaft arranged along the first direction. The first clamping piece support frame and the second clamping piece support frame are slidingly matched with the first guide shaft. The first clamping piece support frame is arranged in the second clamping piece support frame. The second clamping piece support frame is provided with an avoiding hole through which the first clamping piece passes.

[0013] In a possible implementation, the clamping support frame comprises a second guide shaft and a third guide shaft arranged along the first direction. The first clamping piece support frame comprises a first clamping piece mounting seat and a first connecting portion and a second connecting portion arranged at two ends of the first clamping piece mounting seat. The first connecting portion is slidingly matched with the first guide shaft, and the second connecting portion is slidingly matched with the second guide shaft. The second clamping piece support frame comprises a second clamping piece mounting seat and a third connecting portion and a fourth connecting portion arranged at two ends of the second clamping piece mounting seat. The third connecting portion is slidingly matched with the first guide shaft, and the fourth connecting portion is slidingly matched with the third guide shaft. The third connecting portion and the fourth connecting portion are located between the first connecting portion and the second connecting portion.

[0014] In a possible implementation, the first driving mechanism comprises a first driver and a second driver. An output shaft of the first driver is connected with the first connecting portion, and an output shaft of the second driver is connected with the third connecting portion.

[0015] In a possible implementation, the first clamping member comprises a first clamping member body and a first folding arm arranged perpendicularly to the first clamping member body, the first folding arm extends along the first direction, and an end of the first folding arm is used for clamping the tab of the battery.

[0016] In a possible implementation, the depth of the avoiding groove is not less than the first folding arm.

[0017] In a possible implementation, the first clamping assembly further comprises a plurality of third clamping members arranged along the first direction, the plurality of third clamping members correspond to the plurality of first clamping members one by one along a second direction, the second direction is perpendicular to the first direction, the first surface has a first clamping portion and a second clamping portion arranged along the second direction, the first clamping portion corresponds to the first clamping member for clamping the positive tab of the battery, and the second clamping portion corresponds to the second clamping member for clamping the negative tab of the battery.

[0018] In a possible implementation, the avoiding groove comprises a first avoiding groove and a second avoiding groove arranged along the first direction, the first avoiding groove is arranged corresponding to the first clamping member, and the second avoiding groove is arranged corresponding to the third clamping member.

[0019] The application further discloses a battery capacity sorting device, comprising:

[0020] a support;

[0021] a battery bracket, the battery bracket is arranged on the support in a sliding manner;

[0022] a battery tab clamping device, the battery tab clamping device is arranged on the support in a sliding manner, and the battery tab clamping device comprises the battery tab clamping device in any one of the above.

[0023] In a possible implementation, the battery tab clamping device comprises two groups, the battery tray comprises a first mounting position and a second mounting position arranged oppositely, the first mounting position and the second mounting position are used for arranging the tabs of the battery oppositely, and the two groups of battery tab clamping devices are arranged corresponding to the first mounting position and the second mounting position of the battery tray respectively.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] In the battery tab clamping device and battery capacity grading device provided in this application, the first clamping component and the second clamping component are slidably disposed on the clamping bracket along the first direction. The first clamping component includes a plurality of first clamping members arranged along the first direction, and the second clamping component includes a plurality of second clamping members arranged along the first direction. The first clamping members are disposed between adjacent second clamping members, thereby the battery tabs can be clamped by the first clamping members and the second clamping members. The first surface of the second clamping member is used to clamp the battery tabs with the first clamping member, and the second surface is provided with a clearance groove. The first driving mechanism is used to drive the first clamping assembly and / or the second clamping assembly to reciprocate along the first direction to realize the clamping and releasing actions. The clamping of the tabs of multiple batteries is synchronized to ensure the consistency of clamping. When the first clamping member and the second clamping member are close to each other to clamp the tabs, it can be ensured that the tabs will not be displaced or deformed during the clamping process, thus ensuring the quality and performance of the battery. When at least a part of the first clamping member is located in the clearance groove of the second clamping member, the first clamping member can be stored in the clearance groove to avoid collision with the tabs and damage. At the same time, it makes the space more compact and reasonable, improves the convenience of operation, and improves the reliability of the device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 One of the structural schematic diagrams of a battery tab clamping device provided in this embodiment of the present utility model;

[0028] Figure 2 for Figure 1 A magnified view of a portion of point P;

[0029] Figure 3 A second schematic diagram of a battery tab clamping device provided in an embodiment of this utility model;

[0030] Figure 4 for Figure 3 A magnified view of a portion at point A;

[0031] Figure 5 for Figure 3 A magnified view of a portion at point B;

[0032] Figure 6 A schematic diagram of the structure of the first clamping component of a battery tab clamping device provided in an embodiment of this utility model;

[0033] Figure 7A structure schematic view of a second clamping assembly of the battery tab clamping device is provided in the embodiment of the utility model;

[0034] Figure 8 A structure schematic view of a clamping support and a first driving mechanism of the battery tab clamping device is provided in the embodiment of the utility model;

[0035] Figure 9 A structure schematic view of a first clamping piece of the battery tab clamping device is provided in the embodiment of the utility model;

[0036] Figure 10 A structure schematic view of a second clamping piece of the battery tab clamping device is provided in the embodiment of the utility model;

[0037] Figure 11 A structure schematic view of the battery capacity grading device is provided in the embodiment of the utility model.

[0038] Mark explanation:

[0039] 10-clamping support, 11-first guide shaft;

[0040] 20-first clamping assembly, 21-first clamping piece, 211-first clamping piece body, 212-first folding arm, 22-first clamping piece support frame, 221-first clamping piece mounting seat, 222-first connecting part, 223-second connecting part, 23-third clamping piece;

[0041] 30-second clamping assembly, 31-second clamping piece, 311-first surface, 3111-first clamping part, 3112-second clamping part, 312-second surface, 3121-avoiding groove, 31211-first avoiding groove, 31212-second avoiding groove, 32-second clamping piece support frame, 321-second clamping piece mounting seat, 322-third connecting part, 323-fourth connecting part;

[0042] 40-first driving mechanism, 41-first driver, 42-second driver;

[0043] 50-support, 60-battery bracket. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0045] In the present application, the terms "mount", "set", "provided with", "connected", "linked" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0047] The soft package battery has the characteristics of good safety performance, light weight, large capacity, small internal resistance and flexible design, and has great application space. However, the soft package battery uses soft aluminum plastic film as the battery shell. During formation, capacity distribution and other processes, due to the chemical reaction inside, the aluminum plastic film will deform unevenly, so when the battery is formed, capacity distributed and other processes, uniform pressure is needed to be applied to the battery from the outside.

[0048] Usually, multiple batteries are placed in a battery tray, and the battery tab is clamped by a clamping device to complete it. In the related art, the clamping device usually adopts a scissors type current clamp, that is, the current clamp is opened and closed by a cylinder pushing the clamp block, and the tab is guided to the inside of the current clamp by the tab guide block. The more channels, the more push cylinders needed, and the cost increases accordingly. At the same time, it is difficult to ensure the consistency of the clamping of each current clamp, and the small opening angle of the current clamp is easy to hit the tab.

[0049] In view of this point, some embodiments of the present application provide a battery tab clamping device and a battery capacity distribution device, which can realize synchronous operation of clamping the tabs of multiple batteries, ensure the consistency of clamping, ensure that the tabs will not displace or deform during clamping, and avoid damage caused by hitting the tabs, so that the space is more compact and reasonable, improve the convenience of operation, and improve the reliability of the device.

[0050] The present application will be described in detail below through specific embodiments:

[0051] The battery tab clamping device of the embodiments of the present application, as shown in Figures 1-10 , comprises:

[0052] a clamping bracket 10;

[0053] The first clamping assembly 20 is arranged on the clamping support 10 in a sliding manner along the first direction, and the first clamping assembly 20 comprises a plurality of first clamping pieces 21 arranged along the first direction.

[0054] The second clamping assembly 30 is arranged on the clamping support 10 in a sliding manner along the first direction, and the second clamping assembly 30 comprises a plurality of second clamping pieces 31 arranged along the first direction, and the first clamping piece 21 is arranged between adjacent second clamping pieces 31, and the second clamping piece 31 comprises a first surface 311 and a second surface 312 arranged along the first direction, the first surface 311 is used for clamping the tab of the battery with the first clamping piece 21, and the second surface 312 is provided with a relief groove 3121.

[0055] The first driving mechanism 40 is used for driving the first clamping assembly 20 and / or the second clamping assembly 30 to reciprocate along the first direction, when the first driving mechanism 40 drives the first clamping piece 21 and the second clamping piece 31 on one side thereof to approach each other, the first clamping piece 21 and the second clamping piece 31 are used for clamping the tab of the battery, and when the first driving mechanism 40 drives the first clamping piece 21 and the second clamping piece 31 on the other side thereof to approach each other, at least a part of the first clamping piece 21 is located in the relief groove 3121.

[0056] The battery tab clamping device provided by the embodiment of the present application, the first clamping assembly 20 and the second clamping assembly 30 are arranged on the clamping support 10 in a sliding manner along the first direction, the first clamping assembly 20 comprises a plurality of first clamping pieces 21 arranged along the first direction, the second clamping assembly 30 comprises a plurality of second clamping pieces 31 arranged along the first direction, and the first clamping piece 21 is arranged between adjacent second clamping pieces 31, so that the first clamping piece 21 and the second clamping piece 31 can clamp the tab of the battery. The first surface 311 of the second clamping piece 31 is used for clamping the tab of the battery with the first clamping piece 21, the second surface 312 is provided with a relief groove 3121, the first driving mechanism 40 is used for driving the first clamping assembly 20 and / or the second clamping assembly 30 to reciprocate along the first direction, so as to realize the clamping and loosening actions, and synchronous operation of clamping the tabs of a plurality of batteries is realized, thereby ensuring the consistency of clamping. When the first clamping piece 21 and the second clamping piece 31 approach each other to clamp the tab, it can be ensured that the tab will not be displaced or deformed during the clamping process, thereby ensuring the quality and performance of the battery, and when at least a part of the first clamping piece 21 is located in the relief groove 3121 of the second clamping piece 31, the first clamping piece 21 can be accommodated in the relief groove 3121, thereby avoiding damage caused by colliding with the tab, and at the same time, the space is more compact and reasonable, the operation convenience is improved, and the reliability of the device is improved.

[0057] The first direction is the direction indicated by the arrow X in the figure. Figure 3

[0058] ​Specifically, in some embodiments, as shown in Figure 6 The first clamping component 20 includes a first clamping piece support frame 22, which is slidingly arranged on the clamping support frame 10 along the first direction, and a plurality of first clamping pieces 21 are arranged on the first clamping piece support frame 22 in a spaced and parallel manner.

[0059] The first clamping piece support frame 22 provides a mounting and supporting platform for the plurality of first clamping pieces 21, and the plurality of first clamping pieces 21 are arranged on the first clamping piece support frame 22 in a spaced and parallel manner, so that the first clamping component 20 can maintain the structural integrity and stability during work, and the misalignment or shaking of a single clamping piece is less likely to occur. When the first clamping piece support frame 22 is slidingly arranged on the clamping support frame 10 along the first direction, the synchronization of each first clamping piece 21 during movement can be ensured, further improving the stability of the device. The parallel arranged first clamping pieces 21 can simultaneously uniformly clamp multiple parts of the battery tab during clamping, ensuring uniform force on the tab and improving the reliability and stability of clamping.

[0060] Alternatively, in other embodiments, the plurality of first clamping pieces 21 are all connected to the driving output end of the driving mechanism, and the driving output end of the driving mechanism drives the plurality of first clamping pieces 21 to move along the first direction.

[0061] Similarly, as shown in Figure 7 The second clamping component 30 includes a second clamping piece support frame 32, which is slidingly arranged on the clamping support frame 10 along the first direction, and a plurality of second clamping pieces 31 are arranged on the second clamping piece support frame 32 in a spaced and parallel manner.

[0062] The second clamping piece support frame 32 provides a stable mounting base for the plurality of second clamping pieces 31, and the plurality of second clamping pieces 31 are arranged on the support frame in a spaced and parallel manner, so that the second clamping component 30 can maintain structural integrity during work, avoiding the misalignment or misplacement of a single clamping piece due to uneven force. When the second clamping piece support frame 32 is slidingly arranged on the clamping support frame 10 along the first direction, this overall sliding structure ensures the synchronization of each second clamping piece 31 during movement, reducing the instability of clamping that may be caused by asynchronization. The parallel arranged second clamping pieces 31 can uniformly distribute clamping force on the tab during clamping, ensuring the reliability and stability of clamping.

[0063] Further, in one possible implementation, as shown in Figure 8As shown, the clamping support 10 comprises a first guide shaft 11 arranged along the first direction, the first clamping piece support 22 and the second clamping piece support 32 are both in sliding fit with the first guide shaft 11, the first clamping piece support 22 is arranged in the second clamping piece support 32, and the second clamping piece support 32 is provided with a avoiding hole for the first clamping piece 21 to pass through.

[0064] The first guide shaft 11 arranged along the first direction provides clear directional guidance for the sliding of the first clamping piece support 22 and the second clamping piece support 32, ensures that the two supports always move along the established first direction during sliding, avoids deviation or shaking, and improves the movement accuracy and stability of the device. The first clamping piece support 22 is arranged in the second clamping piece support 32, so that the structure of the entire device is more compact, and the two supports can better realize coordinated action during movement through sliding fit with the same guide shaft.

[0065] In another possible implementation, the first clamping support and the second clamping support are guided through guide grooves or sliding rails.

[0066] Further, as shown, Figure 3 The clamping support 10 comprises a second guide shaft and a third guide shaft arranged along the first direction, the first clamping piece support 22 comprises a first clamping piece mounting seat 221 and a first connecting portion 222 and a second connecting portion 223 arranged at both ends of the first clamping piece mounting seat 221, the first connecting portion 222 is in sliding fit with the first guide shaft 11, and the second connecting portion 223 is in sliding fit with the second guide shaft, the second clamping piece support 32 comprises a second clamping piece mounting seat 321 and a third connecting portion 322 and a fourth connecting portion 323 arranged at both ends of the second clamping piece mounting seat 321, the third connecting portion 322 is in sliding fit with the first guide shaft 11, and the fourth connecting portion 323 is in sliding fit with the third guide shaft, and the third connecting portion 322 and the fourth connecting portion 323 are located between the first connecting portion 222 and the second connecting portion 223.

[0067] By setting the second guide shaft and the third guide shaft, a more stable support structure is provided for the clamping support 10. The first clamping piece support 22 and the second clamping piece support 32 are respectively in sliding fit with different guide shafts, so that the entire device can withstand greater clamping force and external force during operation, reducing the possibility of shaking and deformation. The first connecting portion 222 and the second connecting portion 223 at both ends of the first clamping piece mounting seat 221 are respectively in sliding fit with different guide shafts, and the third connecting portion 322 and the fourth connecting portion 323 at both ends of the second clamping piece mounting seat 321 are respectively in sliding fit with different guide shafts, further enhancing the stability of the support frame and ensuring that no tilting or deviation occurs during clamping. At the same time, the third connecting portion 322 and the fourth connecting portion 323 are located between the first connecting portion 222 and the second connecting portion 223, so that the two clamping piece supports are nested with each other in structure, forming a compact and stable whole.

[0068] Specifically, as shown in Figure 3 the first driving mechanism 40 includes a first driver 41 and a second driver 42, the output shaft of the first driver 41 is connected with the first connecting portion 222, and the output shaft of the second driver 42 is connected with the third connecting portion 322.

[0069] The first driver 41 and the second driver 42 are respectively connected with the first connecting portion 222 of the first clamping piece support 22 and the third connecting portion 322 of the second clamping piece support 32, so that the two clamping piece supports can be independently driven, the movements of the first clamping piece support 22 and the second clamping piece support 32 are respectively controlled accurately, and a more precise clamping action is realized.

[0070] In one possible implementation, as shown in Figure 9 the first clamping piece 21 includes a first clamping piece body 211 and a first folding arm 212 arranged perpendicularly to the first clamping piece body 211, the first folding arm 212 extends in a first direction, and the end of the first folding arm 212 is used to clamp the tab of the battery.

[0071] The first folding arm 212 is arranged perpendicularly to the first clamping piece body 211 and extends in the first direction, so that when the first clamping piece 21 clamps the tab of the battery, the end of the first folding arm 212 can contact the tab. The extension direction of the first folding arm 212 is consistent with the direction of the clamping force, which can better withstand the reaction force during clamping, so that the first clamping piece 21 is more stable when clamping the tab and is not prone to shaking or loosening, ensuring the reliability of clamping.

[0072] Alternatively, the first clamping piece 21 includes a rectangular sheet body, and the operation of clamping the tab is realized by the surface of the rectangular sheet body and the second clamping piece 31.

[0073] In some embodiments, the groove depth of the avoidance groove 3121 is not less than the first folding arm 212.

[0074] When the clamping state of the first clamping piece 21 and the second clamping piece 31 needs to be separated, the first clamping piece 21 moves from the second clamping piece 31 on one side to the avoidance groove 3121 of the second clamping piece 31 on the other side. The groove depth of the avoidance groove 3121 is not less than the first folding arm 212, so that the first folding arm 212 can be completely accommodated in the avoidance groove 3121. Thus, in the non-clamping state, the first clamping piece 21 and the second clamping piece 31 can maintain a relatively large spacing and will not collide or rub with the tab, thereby reducing the risk of damage to the tab and the clamping piece and prolonging the service life of the equipment.

[0075] In other embodiments, the groove depth of the avoidance groove 3121 can be slightly smaller than the first folding arm 212, which can provide a relatively sufficient clamping space for the tab.

[0076] In the present embodiment, as shown in Figure 2 The first clamping assembly 20 further includes a plurality of third clamping pieces 23 arranged in a first direction. The plurality of third clamping pieces 23 correspond to the plurality of first clamping pieces 21 one by one in a second direction perpendicular to the first direction. The first surface 311 has a first clamping portion 3111 and a second clamping portion 3112 arranged in the second direction. The first clamping portion 3111 corresponds to the first clamping piece 21 for clamping the positive tab of the battery, and the second clamping portion 3112 corresponds to the second clamping piece 31 for clamping the negative tab of the battery.

[0077] The second direction is the direction indicated by the arrow Y in Figure 2 .

[0078] The first clamping piece 21 and the third clamping piece 23 are used to simultaneously clamp the positive and negative tabs of the battery, without the need for separate operations, greatly improving the clamping efficiency and saving production time. The first clamping piece 21 and the third clamping piece 23 are close to the first clamping portion 3111 and the second clamping portion 3112 of the second clamping piece 31 to clamp the positive and negative tabs, increasing the stability of clamping. At the same time, the first clamping piece 21 and the third clamping piece 23 belong to the first clamping assembly 20, and the first clamping portion 3111 and the second clamping portion 3112 are located on the second clamping piece 31, ensuring that the positive and negative tabs are subjected to uniform clamping force, which can ensure the accuracy of clamping.

[0079] In other embodiments, two different clamping devices are used to clamp the positive and negative tabs, respectively.

[0080] Specifically, in one possible implementation, as shown in Figure 10As shown, the avoiding groove 3121 includes a first avoiding groove 31211 and a second avoiding groove 31212 arranged along the first direction, the first avoiding groove 31211 is arranged corresponding to the first clamping piece 21, and the second avoiding groove 31212 is arranged corresponding to the third clamping piece 23.

[0081] The first avoiding groove 31211 is arranged corresponding to the first clamping piece 21, and the second avoiding groove 31212 is arranged corresponding to the third clamping piece 23, so that when the first clamping piece 21 and the third clamping piece 23 move from the second clamping piece 31 on one side to the avoiding groove 3121 of the second clamping piece 31 on the other side, they respectively enter the first avoiding groove 31211 and the second avoiding groove 31212 to realize avoiding different clamping pieces, which can more accurately find a safe position, reduce the damage or failure of the device caused by collision, improve the stability and reliability of the device, and at the same time, the structural strength of the second clamping piece 31 between the first avoiding groove 31211 and the second avoiding groove 31212 can be higher.

[0082] In another possible implementation, one avoiding groove 3121 can also be provided, and parts of the first clamping piece 21 and the third clamping piece 23 can be accommodated therein.

[0083] The application also discloses a battery capacity distribution device, which comprises a bracket 50, a battery bracket 60 and a battery tab clamping device. Figure 11 As shown, the avoiding groove 3121 includes a first avoiding groove 31211 and a second avoiding groove 31212 arranged along the first direction, the first avoiding groove 31211 is arranged corresponding to the first clamping piece 21, and the second avoiding groove 31212 is arranged corresponding to the third clamping piece 23.

[0084] The bracket 50 provides a stable support structure for the whole device, ensuring that the battery bracket 60 and the battery tab clamping device can be reliably installed and operated, the battery bracket 60 is slidingly arranged on the bracket 50, which can be conveniently adjusted in position, facilitating the installation and disassembly of the battery, and the battery tab clamping device is also slidingly arranged on the bracket 50, which can be adjusted in position as needed to accurately clamp the battery tab.

[0085] Alternatively, in other possible implementations, one of the battery bracket 60 and the battery tab clamping device is slidingly arranged on the bracket 50.

[0086] Further, as shown, Figure 11 The battery tab clamping device includes two groups, the battery bracket 60 includes a first mounting position and a second mounting position arranged oppositely, the first mounting position and the second mounting position are used for arranging the tabs of the battery oppositely, and the two groups of battery tab clamping devices are arranged corresponding to the first mounting position and the second mounting position of the battery bracket 60.

[0087] The battery tab clamping device includes two groups corresponding to different mounting positions of the battery bracket 60, and the first mounting position and the second mounting position of the battery bracket 60 are arranged oppositely to make the battery tabs face away from each other, so that the two groups of battery tab clamping devices can be clamped respectively, and the production efficiency is further improved.

[0088] Of course, in other possible implementation manners, according to production needs, the battery tab clamping device can also be provided with one group or three groups, and the battery bracket 60 is provided with one group or three groups of mounting positions corresponding to the battery tab clamping device.

[0089] The battery tab clamping device in the battery capacity grading device is the battery tab clamping device described above, so the battery capacity grading device in the embodiment has substantially the same technical effects as the battery tab clamping device described above, and the technical effects of the battery tab clamping device have been fully described, and thus will not be described again.

[0090] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part 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. A battery tab clamping device, characterized in that, include: Clamping bracket (10); A first clamping assembly (20) is slidably disposed on the clamping bracket (10) along a first direction. The first clamping assembly (20) includes a plurality of first clamping members (21) arranged along the first direction. The second clamping assembly (30) is slidably disposed on the clamping bracket (10) along the first direction. The second clamping assembly (30) includes a plurality of second clamping members (31) arranged along the first direction. The first clamping member (21) is disposed between adjacent second clamping members (31). The second clamping member (31) includes a first surface (311) and a second surface (312) arranged along the first direction. The first surface (311) is used to clamp the battery tab with the first clamping member (21). The second surface (312) is provided with a clearance groove (3121). A first driving mechanism (40) is used to drive the first clamping assembly (20) and / or the second clamping assembly (30) to reciprocate along the first direction. When the first driving mechanism (40) drives the first clamping member (21) and the second clamping member (31) on one side to move closer to each other, the first clamping member (21) and the second clamping member (31) are used to clamp the battery tabs. When the first driving mechanism (40) drives the first clamping member (21) and the second clamping member (31) on the other side to move closer to each other, at least a portion of the first clamping member (21) is located in the clearance groove (3121).

2. The battery tab clamping device according to claim 1, characterized in that, The first clamping assembly (20) includes a first clamping member support frame (22), which is slidably disposed on the clamping bracket (10) along the first direction, and a plurality of first clamping members (21) are spaced apart and parallel to each other on the first clamping member support frame (22).

3. The battery tab clamping device according to claim 2, characterized in that, The second clamping assembly (30) includes a second clamping member support frame (32), which is slidably disposed on the clamping bracket (10) along the first direction, and a plurality of second clamping members (31) are spaced apart and parallel to each other on the second clamping member support frame (32).

4. The battery tab clamping device according to claim 3, characterized in that, The clamping bracket (10) includes a first guide shaft (11) arranged along the first direction. The first clamping member support frame (22) and the second clamping member support frame (32) are both slidably engaged with the first guide shaft (11). The first clamping member support frame (22) is disposed inside the second clamping member support frame (32). The second clamping member support frame (32) is provided with a clearance hole for the first clamping member (21) to pass through.

5. The battery tab clamping device according to claim 4, characterized in that, The clamping bracket (10) includes a second guide shaft and a third guide shaft arranged along the first direction. The first clamping support frame (22) includes a first clamping mounting seat (221) and a first connecting portion (222) and a second connecting portion (223) disposed at both ends of the first clamping mounting seat (221). The first connecting portion (222) is slidably engaged with the first guide shaft (11), and the second connecting portion (223) is slidably engaged with the second guide shaft. The second clamping support frame (32) includes a second clamping mounting seat (321) and a third connecting portion (322) and a fourth connecting portion (323) disposed at both ends of the second clamping mounting seat (321). The third connecting portion (322) is slidably engaged with the first guide shaft (11), and the fourth connecting portion (323) is slidably engaged with the third guide shaft. The third connecting portion (322) and the fourth connecting portion (323) are located between the first connecting portion (222) and the second connecting portion (223).

6. The battery tab clamping device according to claim 5, characterized in that, The first drive mechanism (40) includes a first driver (41) and a second driver (42). The output shaft of the first driver (41) is connected to the first connecting part (222), and the output shaft of the second driver (42) is connected to the third connecting part (322).

7. The battery tab clamping device according to claim 1, characterized in that, The first clamping member (21) includes a first clamping member body (211) and a first folding arm (212) disposed perpendicular to the first clamping member body (211). The first folding arm (212) extends along the first direction, and the end of the first folding arm (212) is used to clamp the tab of the battery.

8. The battery tab clamping device according to claim 7, characterized in that, The depth of the clearance groove (3121) is not less than that of the first folding arm (212).

9. The battery tab clamping device according to claim 1, characterized in that, The first clamping assembly (20) further includes a plurality of third clamping members (23) arranged along the first direction. The plurality of third clamping members (23) correspond one-to-one with the plurality of first clamping members (21) along a second direction, which is perpendicular to the first direction. The first surface (311) has a first clamping portion (3111) and a second clamping portion (3112) arranged along the second direction. The first clamping portion (3111) corresponds to the first clamping member (21) for clamping the positive electrode tab of the battery, and the second clamping portion (3112) corresponds to the second clamping member (31) for clamping the negative electrode tab of the battery. The clearance groove (3121) includes a first clearance groove (31211) and a second clearance groove (31212) arranged along the first direction. The first clearance groove (31211) is correspondingly disposed with the first clamping member (21), and the second clearance groove (31212) is correspondingly disposed with the third clamping member (23).

10. A battery capacity grading device, characterized in that, include: Bracket (50); A battery holder (60) is slidably mounted on the bracket (50); A battery tab clamping device is slidably disposed on the bracket (50). The battery tab clamping device is the battery tab clamping device according to any one of claims 1-9. The battery tab clamping device includes two sets. The battery bracket (60) includes a first mounting position and a second mounting position arranged opposite to each other. The first mounting position and the second mounting position are used to arrange the battery tabs back to back. The two sets of battery tab clamping devices are respectively arranged corresponding to the first mounting position and the second mounting position of the battery bracket (60).

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