Pole piece taking mechanism and lamination equipment

Abstract

The utility model relates to a pole piece taking mechanism and lamination equipment, and belongs to the technical field of battery manufacturing. The embodiment of the utility model provides a pole piece taking mechanism. The pole piece taking mechanism comprises a base plate; the first clamping jaw assembly and the second clamping jaw assembly are mounted on the base plate; wherein the first clamping jaw assembly is used for grabbing the first side of a first pole piece, the second clamping jaw assembly is used for grabbing the second side of the first pole piece, the first clamping jaw assembly is configured to be capable of transferring the first pole piece to the second clamping jaw assembly, and the second clamping jaw assembly is configured to be capable of transferring the second pole piece to the second clamping jaw assembly. Therefore, the first pole piece can be grabbed from the first side of the first pole piece to be grabbed from the second side of the first pole piece. According to the pole piece taking mechanism, the same-polarity pole pieces of different specifications can be stacked in turn, so that the pole piece taking mechanism can be used for stacking to form a novel battery cell, the stacking efficiency of the battery cell is improved, and the manufacturing cost of the battery cell is reduced. The utility model further provides lamination equipment which comprises the pole piece taking mechanism.

Description

Technical Field

[0001] The present application relates to the field of battery manufacturing technology, and in particular to a pole piece removal mechanism and a pole piece stacking device. Background Art

[0002] With the rapid development of the new energy field, the safety performance of laminated batteries has become increasingly important, and the cell structure of laminated batteries is also constantly innovating. At present, there is a new type of laminated battery, the cell includes stacked positive pole pieces and negative pole pieces, the pole pieces of the same polarity are type A pole pieces in the first placement state, and type B pole pieces in the second placement state, and the type A pole pieces and type B pole pieces are alternately fed into the stacking machine to be stacked with the pole pieces of the other polarity to form a cell.

[0003] In order to stack and form this type of battery cell, improvements can be made to the electrode feeding part, and type A and type B electrodes are alternately provided on the conveyor line, and the transfer mechanism directly grabs the corresponding electrode and feeds it to the stacking machine; or the transfer mechanism grabs the electrode and then switches the arrangement of the electrode to achieve the conversion from type A electrode to type B electrode. However, for the entire production line, there is a large gap between the electrode feeding rhythm and the rhythm of switching the electrode placement state. Since it takes a long time to switch the electrode placement state, the excess electrode of the incoming material can only be treated as waste for waste disposal while waiting for the electrode to switch the placement state, resulting in electrode waste, increased manufacturing cost of the battery cell, and low overall stacking efficiency. Utility Model Content

[0004] To this end, the present application proposes a pole piece removal mechanism and a stacking device, which can alleviate the phenomenon of excess pole piece discharge due to waiting for the pole piece placement status to be switched, reduce the manufacturing cost of the battery cell, and improve the stacking efficiency of the battery cell.

[0005] Some embodiments of the present application propose a pole piece picking mechanism, comprising: a substrate; a first clamping jaw assembly and a second clamping jaw assembly, which are installed on the substrate; wherein the first clamping jaw assembly is used to grasp the first side of the first pole piece, and the second clamping jaw assembly is used to grasp the second side of the first pole piece, and the first clamping jaw assembly is configured to be able to transfer the first pole piece to the second clamping jaw assembly, so as to switch from grasping the first pole piece from the first side of the first pole piece to grasping the first pole piece from the second side of the first pole piece.

[0006] Optionally, the first jaw assembly and the second jaw assembly are arranged to face each other, and the first jaw assembly and the second jaw assembly both include: a bracket, slidably mounted on the base plate along the first direction; a jaw, rotatably mounted on the bracket around a first axis, and the first axis is perpendicular to the first direction; a flip drive member, mounted on the bracket, for driving the jaw to rotate so that the jaw switches between a first state and a second state; when the jaw is in the first state, the first jaw assembly or the second jaw assembly is used to take and place the first pole piece; when the jaw is in the second state, the two jaws are arranged to face each other, and the first jaw assembly and the second jaw assembly are configured to connect the first pole piece.

[0007] Optionally, the flip driving member is a cylinder, the flip driving member is mounted on the bracket, and the flip driving member is configured to extend to push the clamping jaw to switch from the first state to the second state, and retract to allow the clamping jaw to return to the first state.

[0008] Optionally, the clamp includes: a rotating connection member, which is rotatably mounted on the bracket around the first axis; and a clamp body, which is mounted on the rotating connection member.

[0009] Optionally, the first clamping jaw assembly and the second clamping jaw assembly both include: a translation driving member installed on the base plate, and used for driving the bracket to move along the first direction.

[0010] Optionally, the translation driving member is a cylinder, and two ends of the translation driving member are respectively hinged to the bracket and the base plate.

[0011] Optionally, the bracket includes: a first connecting member, which is hinged to the translation driving member; a second connecting member, one end of which is slidably matched with the substrate along the first direction, and the other end is fixedly connected to the first connecting member, and the clamp is rotatably installed on the second connecting member around the first axis.

[0012] Optionally, the pole piece taking mechanism further includes: a first driving assembly, used for driving the base plate to rotate, so that the first clamping jaw assembly or the second clamping jaw assembly switches between a material taking position and a material unloading position.

[0013] Optionally, the first driving assembly includes: a rotating driving member; a reducer, wherein the input end of the reducer is connected to the rotating driving member, and the output end of the reducer is connected to the substrate; wherein the rotating driving member is used to drive the substrate to rotate around the second axis through the reducer.

[0014] Some embodiments of the present application also propose a stacking device, including: a conveyor line for conveying a first electrode sheet; a stacking machine for receiving two first electrode sheets in different placement states and stacking them to form a battery cell; the above-mentioned electrode sheet picking mechanism is used to grab the first electrode sheet from the conveyor line through the first clamp assembly, and alternately load the first electrode sheet to the stacking machine through the first clamp assembly and the second clamp assembly.

[0015] Compared with the prior art, this solution has the following beneficial effects:

[0016] In the electrode sheet picking mechanism of the embodiment of the present application, since the first clamping jaw assembly and the second clamping jaw assembly can realize the handover of the first electrode sheet, under the premise of grabbing the first electrode sheet from the first side to unload the first electrode sheet in one placement state, it is satisfied to switch to grabbing the first electrode sheet from the second side to unload the first electrode sheet in another placement state, thereby realizing that the first electrode sheet can be transferred to the next workstation in two different placement states, and then realizing the alternating transfer of the first electrode sheets in two different placement states to the next workstation, thereby alleviating the phenomenon of excess electrode sheet discharge due to waiting for the switching of the electrode sheet placement state, reducing the manufacturing cost of the battery cell, and improving the stacking efficiency of the battery cell.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the electrode sheet removal mechanism provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of the first clamping jaw assembly in the pole piece taking mechanism provided in an embodiment of the present application;

[0021] Figure 3 A schematic structural diagram of a first pole piece corresponding to the pole piece taking mechanism provided in an embodiment of the present application;

[0022] Figure 4 The arrangement state diagram of the first pole piece corresponding to the pole piece taking mechanism provided in the embodiment of the present application is a type A pole piece;

[0023] Figure 5The arrangement state diagram of the first pole piece corresponding to the pole piece taking mechanism provided in the embodiment of the present application is a B-type pole piece;

[0024] Figure 6 A schematic diagram of a lamination device provided for an embodiment of the application.

[0025] Icons: 100-pole piece taking mechanism; 110-substrate; 120-first clamping jaw assembly; 121-bracket; 1211-first connecting member; 1212-second connecting member; 122-clamping jaw; 1221-rotating connecting member; 1222-clamping jaw body; 123-flipping driving member; 124-translational driving member; 130-second clamping jaw assembly; 140-first driving assembly; 141-rotating driving member; 142-reducer; 143-mounting plate; 200-first pole piece; 210-first side; 220-second side; X-first direction; Z-second direction; P-first axis; Q-second axis; 300-stacking equipment; 310-conveyor line; 320-stacking machine; 321-stacking station; 322-temporary storage station. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] In the related art, the traditional stacking equipment alternately stacks the positive electrode sheets, the negative electrode sheets and the separators to form a battery cell. For a new type of battery cell, in which the electrode sheets of one polarity have multiple specifications, it is necessary to alternately stack the same-sex electrode sheets of multiple specifications to achieve this. However, considering that there is a large gap between the beat of providing electrode sheets of different specifications and the beat of electrode sheet feeding, and since it takes a long time to switch the specifications of the electrode sheets, the excess electrode sheets of the incoming materials can only be treated as waste sheets for waste disposal while waiting for the specifications of the electrode sheets to be switched, resulting in waste of electrode sheets, increasing the manufacturing cost of the battery cell, and the overall stacking efficiency is also very low.

[0029] After research, the inventor found that in actual production, in order to reduce production costs, the so-called multiple specifications of the same pole pieces are actually realized by different placement states of the same pole piece, such as front placement, back placement, etc. In other words, the qualified pole piece can be first grabbed on the conveyor line, and then the placement state of the pole piece can be changed, and then the pole pieces with different placement states can be loaded into the stacking machine. Through this form, the time required to switch the placement state of the pole piece can be shortened as much as possible, thereby overcoming the above-mentioned phenomenon of waste discharge of excess pole pieces due to inconsistent beats, thereby improving the stacking efficiency and reducing the manufacturing cost of the battery cell.

[0030] Based on the above problems, the present application proposes a pole piece picking mechanism and a stacking device, in which a pole piece picking mechanism is added between the conveyor line and the stacking machine, and pole pieces in different placement states are provided to the stacking machine without affecting the pole piece feeding rhythm, thereby achieving higher stacking efficiency and lower battery cell manufacturing cost.

[0031] like Figure 1 and Figure 2 As shown, the pole piece taking mechanism 100 of the embodiment of the present application includes a base plate 110, a first clamping jaw assembly 120 and a second clamping jaw assembly 130, and the first clamping jaw assembly 120 and the second clamping jaw assembly 130 are both mounted on the base plate 110. Among them, the first clamping jaw assembly 120 is used to grasp the first side 210 of the first pole piece 200, and the second clamping jaw assembly 130 is used to grasp the second side 220 of the first pole piece 200. The first clamping jaw assembly 120 is configured to be able to hand over the first pole piece 200 to the second clamping jaw assembly 130, so as to switch from grasping the first pole piece 200 from the first side 210 of the first pole piece 200 to grasping the first pole piece 200 from the second side 220 of the first pole piece 200.

[0032] like Figure 3 , Figure 4 and Figure 5 As shown, along the thickness direction of the first pole piece 200, the two sides of the first pole piece 200 are respectively the first side 210 and the second side 220. When the first pole piece 200 is in a placement state with the first side 210 facing upward, the first pole piece 200 is an A-type pole piece at this time, and when the first pole piece 200 is in a placement state with the second side 220 facing upward, the first pole piece 200 is a B-type pole piece at this time. In some embodiments of the present application, the first pole piece 200 is a positive pole piece; in other embodiments, the first pole piece 200 may also be a negative pole piece.

[0033] In the electrode sheet removal mechanism 100 of the embodiment of the present application, since the first clamping jaw assembly 120 and the second clamping jaw assembly 130 can realize the handover of the first electrode sheet 200, under the premise of grabbing the first electrode sheet 200 from the first side 210 to unload the first electrode sheet 200 in one placement state, it is satisfied to switch to grabbing the first electrode sheet 200 from the second side 220 to unload the first electrode sheet 200 in another placement state, thereby realizing that the first electrode sheet 200 can be transferred to the next workstation in two different placement states, and then realizing the alternating transfer of the first electrode sheets 200 in two different placement states to the next workstation, thereby alleviating the phenomenon of excess electrode sheet discharge due to waiting for the switching of the electrode sheet placement state, reducing the manufacturing cost of the battery cell, and improving the stacking efficiency of the battery cell.

[0034] like Figure 1 As shown, in some embodiments of the present application, the first clamping jaw assembly 120 and the second clamping jaw assembly 130 are arranged to face each other, and the first clamping jaw assembly 120 and the second clamping jaw assembly 130 work together to complete the connection of the first pole piece 200 .

[0035] In some embodiments of the present application, the first jaw assembly 120 and the second jaw assembly 130 have the same structure.

[0036] like Figure 2 As shown, taking the first clamping jaw assembly 120 as an example, the first clamping jaw assembly 120 includes a bracket 121, a clamping jaw 122 and a flip driving member 123. The bracket 121 is slidably mounted on the base plate 110 along the first direction X, and the clamping jaw 122 is rotatably mounted on the bracket 121 around a first axis P, and the first axis P is perpendicular to the first direction X. The flip driving member 123 is mounted on the bracket 121, and is used to drive the clamping jaw 122 to rotate so that the clamping jaw 122 switches between the first state and the second state.

[0037] Specifically, the base plate 110 is provided with a linear guide rail extending along the first direction X, and the bracket 121 and the base plate 110 are slidably matched via the linear guide rail.

[0038] Similarly, the second clamping jaw assembly 130 also includes a bracket, a clamping jaw and a flip driving member, which will not be further described here.

[0039] When the jaw 122 is in the first state, the first jaw assembly 120 or the second jaw assembly 130 is used to take and place the first pole piece 200; when the jaw 122 is in the second state, the two jaws 122 are arranged toward each other, and the first jaw assembly 120 and the second jaw assembly 130 are configured to connect the first pole piece 200.

[0040] For example, Figure 1 The clamping jaw 122 of the first clamping jaw assembly 120 is in the first state, and the clamping jaw of the second clamping jaw assembly 130 is in the second state.

[0041] Through this arrangement, the structure of the electrode piece taking mechanism 100 can be simplified, and the first electrode piece 200 can be reliably taken and placed or the first electrode piece 200 can be transferred.

[0042] In other embodiments, the structures of the first clamping jaw assembly 120 and the second clamping jaw assembly 130 may also be different, and only one of the first clamping jaw assembly 120 and the second clamping jaw assembly 130 is actuated to achieve the intersection of the first pole piece 200 .

[0043] In some embodiments of the present application, the first jaw assembly 120 and the second jaw assembly 130 are arranged toward each other along the first direction X, that is, the jaw 122 of the first jaw assembly 120 and the jaw of the second jaw assembly 130 are arranged toward each other along the first direction X; in other embodiments, the first jaw assembly 120 and the second jaw assembly 130 may also be arranged toward each other along other directions, that is, the jaw 122 of the first jaw assembly 120 and the jaw of the second jaw assembly 130 are arranged toward each other along other directions.

[0044] In some embodiments of the present application, the rotation range of the clamp 122 around the first axis P is 90° to switch between the first state and the second state. Specifically, when the clamp 122 of the first clamp assembly 120 is in the first state, the clamp 122 grabs or discharges the first pole piece 200 from the first side 210 of the first pole piece 200 along the second direction Z, and the second direction Z is perpendicular to the first direction X; when the clamp 122 of the first clamp assembly 120 and the clamp of the second clamp assembly 130 are both in the second state, the two clamps 122 are arranged relative to each other along the first direction X, the clamp 122 of the first clamp assembly 120 grabs the first pole piece 200 from the first side 210 to expose the second side 220 to the second clamp assembly 130, and the clamp of the second clamp assembly 130 receives the first pole piece 200 from the second side 220. If it is necessary to unload type A pole piece, the first pole piece 200 is unloaded by the jaw 122 of the first jaw assembly 120 in the first state; if it is necessary to unload type B pole piece, after the first pole piece 200 is handed over by the first jaw assembly 120 and the second jaw assembly 130, the jaw 122 of the second jaw assembly 130 is switched to the first state and the first pole piece 200 is unloaded.

[0045] In other embodiments, according to the specific angle difference between the loading position and the unloading position of the first pole piece 200, the angle range of the clamp 122 switching between the first state and the second state can also be specifically adjusted, for example, to 60°, 120°, etc.

[0046] In some embodiments of the present application, the flip driving member 123 is a cylinder, which is installed on the bracket 121. The flip driving member 123 is configured to extend to push the clamp 122 to switch from the first state to the second state, and retract to allow the clamp 122 to return to the first state.

[0047] By configuring the flip driving member 123 as a cylinder, it is possible to reliably drive the clamping jaw 122 to switch from the first state to the second state.

[0048] In other embodiments, the flip driving member 123 may also be a rotation driving member such as a motor.

[0049] In some embodiments of the present application, the end of the flip driving member 123 is separated from the clamping jaw 122 when it is retracted, and the clamping jaw 122 rotates around the first axis P under the action of gravity due to its own counterweight, and the bracket 121 is provided with a corresponding limiting structure to stop the clamping jaw 122 in the first state; in other embodiments, the clamping jaw 122 can also be driven to reset by an elastic member; or the end of the flip driving member 123 is connected to the clamping jaw 122, and the flip driving member 123 drives the clamping jaw 122 to reset.

[0050] In some embodiments of the present application, the clamp 122 includes a rotating connection member 1221 and a clamp body 1222 . The rotating connection member 1221 is rotatably mounted on the bracket 121 around the first axis P, and the clamp body 1222 is mounted on the rotating connection member 1221 .

[0051] The clamp body 1222 is used to grab the first pole piece 200 , and the rotating connector 1221 is used to rotatably install the clamp body 1222 on the bracket 121 .

[0052] In some embodiments of the present application, the clamp body 1222 is a suction plate, which grasps the first pole piece 200 from the first side 210 or the second side 220 of the first pole piece 200 by vacuum adsorption; in other embodiments, the clamp body 1222 can also be a mechanical clamp.

[0053] In some embodiments of the present application, the first clamping jaw assembly 120 further includes a translation driver 124 mounted on the base plate 110 for driving the bracket 121 to move along the first direction X. Similarly, the second clamping jaw assembly 130 also includes a translation driver, which will not be further described herein.

[0054] The bracket 121 moves along the first direction X to drive the clamping jaw 122 to move synchronously along the first direction X, so as to accurately align the material picking position and the material unloading position, and the clamping jaw of the second clamping jaw assembly 130 and the clamping jaw 122 of the first clamping jaw assembly 120 are close to each other to connect the first pole piece 200.

[0055] In some embodiments of the present application, the bracket 121 includes a first connecting member 1211 and a second connecting member 1212, the first connecting member 1211 is hinged to the translation driving member 124, one end of the second connecting member 1212 is slidably matched with the base plate 110 along the first direction X, and the other end is fixedly connected to the first connecting member 1211, and the clamping jaw 122 is rotatably mounted on the second connecting member 1212 around the first axis P. Similarly, the bracket of the second clamping jaw assembly 130 also includes a first connecting member and a second connecting member, which will not be further described here.

[0056] Specifically, the rotating connecting member 1221 is rotatably mounted on the second connecting member 1212 around the first axis P. The second connecting member 1212 is provided with the aforementioned limiting structure to stop the clamping jaw 122 in the second state.

[0057] With this arrangement, the structure of the bracket 121 can be simplified to drive the clamping jaw 122 to move along the first direction X.

[0058] In other embodiments, the bracket 121 may also be an integrally formed structure.

[0059] As an exemplary form, the translation driving member 124 is a cylinder, and two ends of the translation driving member 124 are hinged to the bracket 121 and the base plate 110 respectively.

[0060] Specifically, one end of the translation drive member 124 is hinged to the base plate 110, and the other end is hinged to the first connecting member 1211. The translation drive member 124 extends to drive the clamp 122 to move along the first direction X away from the other clamp, and the translation drive member 124 retracts to drive the clamp 122 to move along the first direction X towards the other clamp.

[0061] In other embodiments, the translation driving member 124 may also be a linear driving member in other forms, and directly acts on the second connecting member 1212 to drive the clamping jaw 122 to move along the first direction X.

[0062] In some embodiments of the present application, the pole piece picking mechanism 100 further includes a first driving assembly 140 for driving the substrate 110 to rotate so that the first clamping jaw assembly 120 or the second clamping jaw assembly 130 switches between a picking position and a unloading position.

[0063] Specifically, when type A pole pieces are required, the first clamping jaw assembly 120 switches between the material picking position and the material unloading position; when type B pole pieces are required, the first clamping jaw assembly 120 corresponds to the material picking position, and the second clamping jaw assembly 130 corresponds to the material unloading position.

[0064] like Figure 1As shown, as an example form, the first driving assembly 140 includes a rotating driving member 141 and a reducer 142, the input end of the reducer 142 is connected to the rotating driving member 141, and the output end is connected to the substrate 110; wherein the rotating driving member 141 is used to drive the substrate 110 to rotate around the second axis Q through the reducer 142.

[0065] The first driving assembly 140 further includes a mounting plate 143 . The base plate 110 is rotatably mounted on the mounting plate 143 around the second axis Q. The rotating driving member 141 is mounted on the mounting plate 143 via a reducer 142 .

[0066] The second axis Q extends along the second direction Z, and the rotation driving member 141 is a servo motor. In other embodiments, the rotation driving member 141 may also be other forms of rotation driving members.

[0067] Through this form, the material taking position and the material unloading position can be arranged at circumferential intervals around the second axis Q to reduce the activity range of the pole piece taking mechanism 100 and arrange the pole piece taking mechanism 100 compactly.

[0068] As an example, the angular difference between the material picking position and the material unloading position is 90°; in other embodiments, the angular difference between the material picking position and the material unloading position may also be 60°, 120°, 180°, etc.

[0069] In other embodiments, the first driving assembly 140 may also be a six-axis robot, which drives the substrate 110 to move flexibly according to the material picking position and the material unloading position.

[0070] like Figure 6 As shown, some embodiments of the present application also propose a stacking device 300, including a conveyor line 310, a stacking machine 320 and a pole piece picking mechanism 100, the conveyor line 310 is used to convey the first pole piece 200, the pole piece picking mechanism 100 is used to grab the first pole piece 200 from the conveyor line 310 through the first clamping assembly 120, and alternately load the first pole piece 200 to the stacking machine 320 through the first clamping assembly 120 and the second clamping assembly 130, the stacking machine 320 is used to receive two first pole pieces 200 in different placement states and stack them to form a battery cell.

[0071] Due to the characteristics of the electrode sheet removal mechanism 100 of the embodiment of the present application, the stacking device 300 also has a higher stacking efficiency and a lower battery cell production cost.

[0072] The first pole piece 200 loaded by the first clamping assembly 120 is a type A pole piece, and the first pole piece 200 loaded by the second clamping assembly 130 is a type B pole piece. The two first pole pieces 200 in different placement states refer to the aforementioned type A pole piece and type B pole piece. The first pole piece 200 on the conveyor belt of the conveyor line 310 is maintained in the placement state of a type A pole piece, which will not be further elaborated here.

[0073] The stacking machine 310 includes a stacking station 321, two temporary storage stations 322 and a stacking manipulator. The two temporary storage stations are used to temporarily store the first pole piece 200 and the second pole piece with the opposite polarity to the first pole piece 200, respectively. The stacking manipulator is used to take the first pole piece 200 and the second pole piece from the two temporary storage stations in turn and send them to the stacking station for stacking. The first pole piece 200, the second pole piece and the diaphragm are stacked to form a battery cell. The temporary storage station corresponding to the first pole piece 200 is provided with a pole piece taking mechanism 100. It can be understood that if the second pole piece in the specific structure of the battery cell also includes a variety of specifications, the temporary storage station corresponding to the second pole piece can also apply the pole piece taking mechanism 100 of the embodiment of the present application.

[0074] Among them, for the electrode sheet picking mechanism 100, the picking position corresponds to the position of grabbing the first electrode sheet 200 from the conveyor line 310, and the unloading position corresponds to the temporary storage station corresponding to the first electrode sheet 200.

[0075] The working principles of the electrode sheet taking mechanism 100 and the lamination device 300 of the embodiment of the present application are as follows:

[0076] The conveying line 310 conveys the first pole piece 200 , and the first side 210 of the first pole piece 200 is arranged upward and is an A-type pole piece;

[0077] When the first pole piece 200 is transported to the material taking position, if the first pole piece 200 is good, the clamping jaw 122 of the first clamping jaw assembly 120 of the pole piece taking mechanism 100 is in the first state, and the first pole piece 200 is grasped from the material taking position, and the first side 210 of the first pole piece 200 is vacuum-adsorbed; if the first pole piece 200 is waste, waste discharge is performed, and the next first pole piece 200 is waited for inspection;

[0078] If it is necessary to stack type A pole pieces, the first driving assembly 140 drives the substrate 110 to rotate around the second axis Q to the unloading position, the clamping jaws 122 of the first clamping jaw assembly 120 place the type A pole pieces at the unloading position, and the stacking robot grabs the type A pole pieces and stacks them at the stacking station;

[0079] If it is necessary to stack type B pole pieces, the jaw 122 of the first jaw assembly 120 switches to the second state, and the jaw of the second jaw assembly 130 also switches to the second state, and the jaw 122 of the first jaw assembly 120 and the jaw of the second jaw assembly 130 approach each other along the first direction X, and the jaw of the second jaw assembly 130 receives the first pole piece 200. At this time, the jaw of the second jaw assembly 130 vacuum absorbs the second side 220 of the first pole piece 200, and the first drive assembly 140 drives the substrate 110 to rotate around the second axis Q to the unloading position, and the jaw of the second jaw assembly 130 places the type B pole piece at the unloading position, and the stacking robot grabs the type B pole piece and stacks it to the stacking station 321.

[0080] In the above process, since the first clamp assembly 120 and the second clamp assembly 130 are connected to the first pole piece 200, the first side 210 of the first pole piece 200 is switched to the second side 220 of the first pole piece 200, thereby completing the switch from type A pole piece to type B pole piece, which has higher stacking efficiency and lower battery cell manufacturing cost.

[0081] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0082] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pole piece taking mechanism (100), characterized in that: include: substrate(110); A first clamping jaw assembly (120) and a second clamping jaw assembly (130) are mounted on the base plate (110); The first clamping jaw assembly (120) is used to grasp the first side (210) of the first pole piece (200), and the second clamping jaw assembly (130) is used to grasp the second side (220) of the first pole piece (200). The first clamping jaw assembly (120) is configured to be able to transfer the first pole piece (200) to the second clamping jaw assembly (130) so as to switch from grasping the first pole piece (200) from the first side (210) of the first pole piece (200) to grasping the first pole piece (200) from the second side (220) of the first pole piece (200).

2. The electrode sheet removal mechanism (100) according to claim 1, characterized in that: The first clamping jaw assembly (120) and the second clamping jaw assembly (130) are arranged facing each other, and the first clamping jaw assembly (120) and the second clamping jaw assembly (130) both include: A bracket (121) is slidably mounted on the substrate (110) along a first direction; A clamping claw (122) is rotatably mounted on the bracket (121) around a first axis, wherein the first axis is perpendicular to the first direction; A flip driving member (123) is mounted on the bracket (121) and is used to drive the clamping jaw (122) to rotate so that the clamping jaw switches between a first state and a second state; When the clamp (122) is in a first state, the first clamp assembly (120) or the second clamp assembly (130) is used to take and place the first pole piece (200); When the clamping jaws (122) are in the second state, the two clamping jaws (122) are arranged to face each other, and the first clamping jaw assembly (120) and the second clamping jaw assembly (130) are configured to intersect the first pole piece (200).

3. The electrode sheet removal mechanism (100) according to claim 2, characterized in that: The flip driving member (123) is a cylinder, and the flip driving member (123) is installed on the bracket (121). The flip driving member (123) is configured to extend to push the clamping jaw (122) to switch from the first state to the second state, and retract to allow the clamping jaw (122) to return to the first state.

4. The electrode sheet removal mechanism (100) according to claim 2, characterized in that: The clamping jaw (122) comprises: A rotating connecting member (1221) is rotatably mounted on the bracket (121) around the first axis; The clamping jaw body (1222) is mounted on the rotating connecting member (1221).

5. The electrode sheet removal mechanism (100) according to claim 2, characterized in that: The first clamping jaw assembly (120) and the second clamping jaw assembly (130) both include: A translation driving member (124) is mounted on the base plate (110) and is used to drive the bracket (121) to move along the first direction.

6. The electrode sheet removal mechanism (100) according to claim 5, characterized in that: The translation driving member (124) is a cylinder, and two ends of the translation driving member (124) are respectively hinged to the bracket (121) and the base plate (110).

7. The electrode sheet removal mechanism (100) according to claim 5, characterized in that: The support (121) comprises: A first connecting member (1211) is hingedly connected to the translation driving member (124); The second connecting member (1212) has one end that is slidably matched with the base plate (110) along the first direction, and the other end that is fixedly connected to the first connecting member (1211). The clamping jaw (122) is rotatably mounted on the second connecting member (1212) around the first axis.

8. The electrode sheet removal mechanism (100) according to claim 1, characterized in that: Also includes: The first driving assembly (140) is used to drive the base plate (110) to rotate so that the first clamping jaw assembly (120) or the second clamping jaw assembly (130) is switched between a material taking position and a material unloading position.

9. The electrode sheet removal mechanism (100) according to claim 8, characterized in that: The first driving assembly (140) comprises: A rotating driving member (141); A reducer (142), wherein an input end of the reducer (142) is connected to the rotating driving member (141), and an output end of the reducer (142) is connected to the substrate (110); The rotation driving member (141) is used to drive the substrate (110) to rotate around a second axis via the reducer (142).

10. A lamination device (300), characterized in that: include: A conveying line (310) for conveying the first pole piece (200); A stacking machine (320) for receiving two first pole pieces (200) in different placement states and stacking them to form a battery core; The pole piece removal mechanism (100) as described in any one of claims 1 to 9 is used to grab the first pole piece (200) from the conveyor line (310) through the first clamping jaw assembly (120), and alternately load the first pole piece (200) to the stacking machine (320) through the first clamping jaw assembly (120) and the second clamping jaw assembly (130).

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