Clamp system and battery production line

Abstract

The utility model belongs to the technical field of battery production, and discloses a clamp system and a battery production line, the clamp system comprises a rack, a clamping unit and a leveling unit, the clamping unit is arranged on the rack and is used for clamping a battery cell; the flattening unit comprises a first flattening piece and a second flattening piece, the first flattening piece and the second flattening piece can be connected to the rack in an opposite or opposite moving manner, and the first flattening piece and the second flattening piece can respectively press the tabs on the two sides of the tabs of the battery cells. In the process of transferring the battery cell by the clamp system, the tab of the battery cell can be leveled through the leveling unit, and the first flattening piece and the second flattening piece of the leveling unit are driven to move in opposite directions, so that the tab between the first flattening piece and the second flattening piece is clamped and flattened, the tab is prevented from being bent, the tab is ensured to be flat and free of wrinkles, and the procedures such as tab welding and the like can be directly carried out subsequently; and a structure for leveling the tabs does not need to be additionally arranged, so that the production cost can be reduced, the production time is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a clamp system and a battery production line. Background Art

[0002] On the battery production line, there is a process of transporting the assembled battery cells to the preset workstations, and the transporting process is achieved by battery cell clamps.

[0003] Existing battery cell clamps are only used to clamp battery cells to a preset workstation. However, the tabs of the battery cells may be bent or wrinkled during the process of being clamped and transported by the battery cell clamps. Tabs with defects such as bends and wrinkles are directly subjected to the subsequent welding process, which reduces the completion rate of the welding process and other subsequent processes, resulting in poor welding quality, high scrap rates, and increased costs. Alternatively, on some existing production lines, a tab flattening mechanism is installed downstream of the battery cell clamp. Before the tab welding process, the tab flattening mechanism is used to flatten the tabs. The installation of the tab flattening mechanism increases production costs. Moreover, the need to perform the tab flattening process between the two processes of clamping the battery cell and welding the tabs prolongs production time, which is not conducive to improving production efficiency.

[0004] Therefore, there is an urgent need for a clamp system and a battery production line to solve the above problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a clamp system and a battery production line, which can ensure that the battery cell tabs are flat and wrinkle-free when the clamp system clamps and transports the battery cell to a preset workstation, thereby reducing production costs and improving production efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, a clamping system is provided, comprising:

[0008] frame;

[0009] A clamping unit, provided on the frame, and used for clamping the battery cell;

[0010] The flattening unit includes a first flattening member and a second flattening member. The first flattening member and the second flattening member are connected to the frame so as to be movable toward or away from each other. The first flattening member and the second flattening member can respectively press the tabs on both sides of the tabs of the battery cell.

[0011] As an optional solution of the clamp system provided by the present invention, the leveling unit further includes:

[0012] a first driving member, whose housing is connected to the frame, the first flattening member is connected to an output end of the first driving member, and the first driving member is used to drive the first flattening member to move linearly;

[0013] The second driving member has a shell connected to the frame, the second flattening member is connected to the output end of the second driving member, and the second driving member is used to drive the second flattening member to move linearly.

[0014] As an optional solution of the clamp system provided by the present invention, the leveling unit further includes:

[0015] a third driving member, wherein the housing of the third driving member is connected to the frame, the housing of the first driving member is connected to the output end of the third driving member, and the third driving member is used to drive the first driving member to move linearly;

[0016] The driving direction of the third driving member is perpendicular to the driving direction of the first driving member.

[0017] As an optional solution of the clamp system provided by the present invention, the second flattening member includes:

[0018] a mounting bracket connected to the output end of the second driving member;

[0019] A pressure plate is connected to the mounting frame, and a mounting space is formed between the pressure plate and the mounting frame. The shell of the third driving member is connected to the mounting frame and is located in the mounting space. The pressure plate is configured to be detachably abutted against the tab.

[0020] As an optional solution of the clamp system provided by the present invention, the clamp system further includes a pressing and positioning unit, and the pressing and positioning unit includes:

[0021] a fourth driving member connected to the clamping unit;

[0022] A pressing member is connected to the output end of the fourth driving member. The pressing member can move linearly relative to the clamping unit under the drive of the fourth driving member, and a battery cell limiting space is formed between the pressing member and the clamping unit.

[0023] As an optional solution of the clamp system provided by the present invention, a pressing buffer is provided on the pressing member, and the pressing buffer is configured to contact the battery cell;

[0024] And / or, the clamping unit includes two clamping mechanisms that can be relatively close to or far away from each other, the clamping mechanisms can be movably connected to the frame, and form the battery cell limiting space between the clamping mechanisms and the clamping members, and the two clamping mechanisms are provided with clamping buffers on at least one side facing each other, and the clamping buffers are configured to contact the battery cells.

[0025] As an optional solution of the clamp system provided by the present invention, the clamping unit includes:

[0026] A clamping drive mechanism is provided on the frame;

[0027] There are two clamping mechanisms, each of which includes a movable carrier and a clamping assembly. The movable carriers of the two clamping mechanisms are transmission-connected to the output end of the clamping drive mechanism so as to move toward or away from each other under the drive of the clamping drive mechanism; the clamping assembly can be slidably connected to the movable carrier to approach or move away from the frame, and the clamping assembly is used to clamp the battery cell.

[0028] As an optional solution of the clamp system provided by the present invention, the clamping unit further includes an elastic member connected between the movable carrier and the clamping plate assembly, and the clamping plate assembly can slide relative to the movable carrier in a direction away from the frame under the elastic force of the elastic member;

[0029] And / or, a position detection component is provided on the movable carrier, and the position detection component is used to detect the position of the clamping plate assembly relative to the movable carrier.

[0030] As an optional solution of the clamp system provided by the present invention, a first guide rail is provided on the frame, and the movable carrier is slidably engaged with the first guide rail;

[0031] And / or, a second guide rail is provided on the movable carrier, and the clamping plate assembly is slidably engaged with the second guide rail.

[0032] In a second aspect, a battery production line is provided, comprising a robot and the clamp system as described above, wherein a frame of the clamp system is connected to the robot.

[0033] Beneficial effects of the utility model:

[0034] The utility model provides a clamping system and a battery production line including the clamping system. The clamping unit provided on the frame can clamp the battery cell, and the battery cell can be transported to a preset work station under the drive of a manipulator connected to the frame. In the process of transporting the battery cell, the tabs of the battery cell can be flattened by the flattening unit provided on the frame, and the first flattening member and the second flattening member of the flattening unit are driven to move toward each other to clamp and flatten the tabs between them, thereby preventing the tabs from bending during the clamping and transportation process, ensuring that the tabs of the clamped battery cell are flat and wrinkle-free, and subsequent processes such as tab welding can be directly carried out without the need to additionally provide a structure for flattening the tabs, thereby reducing production costs. Moreover, the tabs can be flattened during the process of clamping and transporting the battery cell, thereby saving production time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative work.

[0036] Figure 1 This is a first view of the clamp system provided by a specific embodiment of the present utility model;

[0037] Figure 2 This is a second view of the clamp system provided by the specific embodiment of the present utility model;

[0038] Figure 3 This is a third view of the clamp system provided in a specific embodiment of the present invention.

[0039] In the picture:

[0040] 1. Frame; 2. Clamping unit; 3. Leveling unit; 4. Pressing and positioning unit; 5. First guide rail; 6. Battery cell detection unit;

[0041] 21. Clamping drive mechanism; 22. Clamping mechanism; 23. Elastic member; 24. Position detection member;

[0042] 221. Mobile carrier; 222. Clamping plate assembly; 223. Second guide rail;

[0043] 2221, support plate; 2222, clamping claw;

[0044] 31. First flattening member; 32. Second flattening member; 33. First driving member; 34. Second driving member; 35. Third driving member;

[0045] 321, mounting frame; 322, pressing plate; 320, installation space;

[0046] 41. Fourth driving member; 42. Pressing member; 43. Pressing buffer member;

[0047] 100. Battery cell; 101. Tab. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0049] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0052] In this embodiment, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this utility model generally indicates that the related objects are in an "or" relationship.

[0053] In the embodiments of the present invention, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted.

[0054] like Figure 1 、 Figure 2 as well as Figure 3 As shown, this embodiment provides a clamping system that can ensure that the tabs 101 of the battery cell 100 are flat and wrinkle-free when the battery cell 100 is clamped and transported to a preset workstation, thereby reducing production costs and improving production efficiency. The clamping system specifically includes a frame 1, a clamping unit 2, and a flattening unit 3.

[0055] The frame 1 is configured to connect to a robot on a battery production line, allowing the entire clamping system to be transported by the robot. Both the clamping unit 2 and the flattening unit 3 are located on the frame 1. The clamping unit 2 is used to clamp the battery cell 100, while the flattening unit 3 is used to flatten the tab 101 of the clamped battery cell 100.

[0056] Specifically, the flattening unit 3 includes a first flattening member 31 and a second flattening member 32. The first flattening member 31 and the second flattening member 32 are connected to the frame 1 so as to be movable toward or away from each other. The first flattening member 31 and the second flattening member 32 can respectively press the tab 101 of the battery cell 100 on both sides. The two sides of the tab 101 referred to here refer to both sides of the tab 101 along the thickness direction. The tab 101 of the clamped battery cell 100 can be located between the first flattening member 31 and the second flattening member 32, so that the first flattening member 31 and the second flattening member 32 can jointly clamp the tab 101 after moving toward each other.

[0057] The clamping system provided in the embodiment of the present application can clamp the battery cell 100 by means of the clamping unit 2 provided on the frame 1, and can transport the battery cell 100 to a preset work station under the drive of the manipulator connected to the frame 1. In the process of transporting the battery cell 100, the tab 101 of the battery cell 100 can be flattened by the flattening unit 3 provided on the frame 1. Specifically, the first flattening member 31 and the second flattening member 32 of the flattening unit 3 are driven to move toward each other to clamp and flatten the tab 101 between the two, thereby preventing the tab 101 from bending during the clamping and transportation process, and ensuring that the tab 101 of the clamped battery cell 100 is flat and wrinkle-free. Subsequently, the tab 101 welding and other processes can be directly carried out without the need to additionally set up a structure for flattening the tab 101, which can reduce production costs. Moreover, the tab 101 can be flattened during the process of clamping and transporting the battery cell 100, which can save production time and improve production efficiency.

[0058] Illustratively, the battery cell 100 is a square battery cell 100 .

[0059] For ease of explanation, an X direction, a Y direction, and a Z direction are introduced for description, wherein the X direction, the Y direction, and the Z direction are perpendicular to each other.

[0060] like Figure 1 and Figure 2 As shown, the clamping unit 2 includes a clamping drive mechanism 21 and a clamping plate mechanism 22. The housing of the clamping drive mechanism 21 is provided on the frame 1. Two clamping plates 22 are provided along the X direction. Both clamping plates 22 are drivingly connected to the output end of the clamping drive mechanism 21. Under the drive of the clamping drive mechanism 21, they move closer to or farther from each other along the X direction, thereby clamping or releasing the battery cell 100.

[0061] In this embodiment, the two clamping plate mechanisms 22 are provided with a clamping buffer on at least one side facing each other, and the clamping buffer is configured to contact the battery cell 100 to avoid damaging the battery cell 100. Optionally, the clamping buffer is a polyurethane layer.

[0062] For example, the clamping drive mechanism 21 may include two linear drive members, each of which drives in the X direction and may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or the like. The two linear drive members are in one-to-one transmission connection with the two clamping mechanisms 22 to drive the two clamping mechanisms 22 to move toward or away from each other. Alternatively, the clamping drive mechanism 21 may include only one linear drive member, which has two output ends, and the two output ends are in one-to-one transmission connection with the two clamping mechanisms 22, such as a double-ended pneumatic cylinder or a double-ended hydraulic cylinder.

[0063] Furthermore, the frame 1 is provided with a first guide rail 5 extending in the X-direction. A first slider is provided on the clamping mechanism 22. The clamping mechanism 22 slides with the first guide rail 5 via the first slider, guiding the movement of the clamping mechanism 22 and improving movement accuracy. Each clamping mechanism 22 can be provided with a first guide rail 5 so that both clamping mechanisms 22 slide with the corresponding first guide rail 5. Alternatively, both clamping mechanisms 22 can share the same first guide rail 5, saving components and space.

[0064] In some embodiments, a battery cell detection component 6 is further provided on the frame 1, and the battery cell detection component 6 is used to detect whether there is a battery cell 100 between the two clamping mechanisms 22. After detecting the presence of the battery cell 100, the control unit can control the manipulator to drive the clamp system to transport the battery cell 100.

[0065] Exemplarily, the battery cell detection component 6 includes a sensor, such as an infrared sensor.

[0066] In this embodiment, see Figure 2 and Figure 3 The flattening unit 3 also includes a first driving member 33 and a second driving member 34. The housing of the first driving member 33 is connected to the frame 1, the first flattening member 31 is connected to the output end of the first driving member 33, and the first driving member 33 is used to drive the first flattening member 31 to move linearly; the housing of the second driving member 34 is connected to the frame 1, the second flattening member 32 is connected to the output end of the second driving member 34, and the second driving member 34 is used to drive the second flattening member 32 to move linearly. Specifically, the first flattening member 31 is located below the tab 101, the first driving member 33 is used to drive the first flattening member 31 to move along the Z direction, the second flattening member 32 is located above the tab 101, and the second driving member 34 is used to drive the second flattening member 32 to move along the Z direction. The first flattening member 31 and the second flattening member 32 work together to flatten the tab 101.

[0067] For example, the first driving member 33 and the second driving member 34 may be linear driving members such as a pneumatic cylinder, an oil cylinder, or an electric cylinder.

[0068] Further, see Figure 2 The flattening unit 3 also includes a third driving member 35. The housing of the third driving member 35 is connected to the frame 1, and the housing of the first driving member 33 is connected to the output end of the third driving member 35. The third driving member 35 is used to drive the first driving member 33 to move linearly, and the driving direction of the third driving member 35 is perpendicular to the driving direction of the first driving member 33. Specifically, the driving direction of the third driving member 35 is the Y direction, and the driving direction of the first driving member 33 is the Z direction. Driven by the first driving member 33 and the third driving member 35, the first flattening member 31 can move along the Y direction and the Z direction to directly below the tab 101, thereby facilitating the cooperation with the second flattening member 32 to flatten the tab 101.

[0069] Exemplarily, the third driving member 35 may be a linear driving member such as a pneumatic cylinder, an oil cylinder, or an electric cylinder.

[0070] Continue reading Figure 2 The second flattening member 32 includes a mounting bracket 321 and a pressure plate 322. The mounting bracket 321 is connected to the output end of the second driving member 34; the pressure plate 322 is connected to the side of the mounting bracket 321 facing away from the second driving member 34, and an installation space 320 is formed between the pressure plate 322 and the mounting bracket 321. The shell of the third driving member 35 is connected to the side of the mounting bracket 321 facing away from the second driving member 34 and is located in the installation space 320. The pressure plate 322 is configured to detachably abut against the tab 101 to cooperate with the first flattening member 31 to clamp and flatten the tab 101. Arranging the shell of the third driving member 35 on the mounting bracket 321 and located in the installation space 320 can make the structure of the flattening unit 3 more compact and reduce the space occupied. Furthermore, the shell of the third driving member 35 is connected to the middle part of the mounting bracket 321, so that the entire flattening unit 3 has a symmetrical structure, which is convenient for balanced force.

[0071] Illustratively, the first flattening member 31 includes a sheet portion, which is used to contact the tab 101 and cooperate with the pressing plate 322 to flatten the tab 101 .

[0072] like Figure 1 As shown, the clamping system also includes a pressing and positioning unit 4, which can cooperate with the clamping unit 2 to achieve the limitation of the battery cell 100. Among them, the pressing and positioning unit 4 includes a fourth driving member 41 and a pressing member 42. The shell of the fourth driving member 41 is connected to the clamping mechanism 22 of the clamping unit 2, and the pressing member 42 is connected to the output end of the fourth driving member 41. The pressing member 42 can move linearly relative to the clamping mechanism 22 under the drive of the fourth driving member 41, specifically move along the Z direction, and form a battery cell limiting space between the pressing member 42 and the clamping mechanism 22 of the clamping unit 2. When the battery cell 100 is clamped between the two clamping mechanisms 22, the control unit controls the fourth driving member 41 to start, so that the fourth driving member 41 drives the pressing member 42 to move along the Z direction, thereby compressing the battery cell 100, improving the stability of the battery cell 100 after being clamped, and preventing the battery cell 100 from falling out from between the two clamping mechanisms 22. Furthermore, each of the two clamping plate mechanisms 22 is provided with a pressing and positioning unit 4 .

[0073] Exemplarily, the fourth driving member 41 may be a linear driving member such as a pneumatic cylinder, an oil cylinder, or an electric cylinder.

[0074] Furthermore, a compression buffer 43 is provided below the compression member 42, and the compression buffer 43 is configured to contact the battery cell 100 to avoid damage to the battery cell 100. Optionally, the compression buffer 43 is a polyurethane layer.

[0075] In this embodiment, see Figure 1 and Figure 2 The clamping mechanism 22 includes a movable carrier 221 and a clamping plate assembly 222. The movable carriers 221 of the two clamping plate mechanisms 22 are both transmission-connected to the output end of the clamping drive mechanism 21 so as to move toward or away from each other along the X-direction under the drive of the clamping drive mechanism 21. The clamping plate assembly 222 moves relative to the rack 1 along the X-direction under the drive of the corresponding movable carrier 221. The clamping plate assembly 222 of the two clamping plate mechanisms 22 is used to clamp the battery cell 100. The movable carrier 221 is provided with the above-mentioned first slider, which slides with the first guide rail 5 on the rack 1 through the first slider. The clamping plate assembly 222 is slidably connected to the movable carrier 221 along the Z-direction to move closer to or away from the rack 1. When the clamping system moves the clamped battery cell 100 to the top of the preset station and is about to lower the battery cell 100 to the preset station, if there is a battery cell 100 at the preset station, the clamping plate assembly 222 slides relative to the movable carrier 221 under the action of the battery cell 100 at the preset station to avoid damaging the battery cell 100 at the preset station.

[0076] Furthermore, the clamping unit 2 also includes an elastic member 23, which is connected between the mobile carrier 221 and the clamping plate assembly 222. When there is a battery cell 100 at the preset station, under the action of the battery cell 100, the clamping plate mechanism 22 moves up relative to the mobile carrier 221 and compresses the elastic member 23 (in fact, the lower end of the clamping plate assembly 222 rests on the battery cell 100 at the preset station, and the mobile carrier 221 moves downward and slides with the clamping plate mechanism 22) to prevent the clamping plate assembly 222 from damaging the battery cell 100 at the preset station. In this case, it is necessary to remove the battery cell 100 at the preset station first. Before removing it, the manipulator drives the clamping system to move upward under the control of the control unit, away from the preset station, to facilitate the transportation of the battery cell 100 at the preset station. When the clamp system is away from the preset work position, the lower end of the clamp assembly 222 no longer rests against the battery cell 100 at the preset work position, and the elastic member 23 releases the elastic potential energy, so that the clamp assembly 222 slides relative to the movable carrier 221 in a direction away from the rack 1 under the elastic force of the elastic member 23 until the clamp assembly 222 is reset relative to the movable carrier 221.

[0077] For example, the elastic member 23 is a spring, which is easy to obtain and has a low cost. Further, a plurality of elastic members 23 are provided between the movable carrier 221 and the clamping plate assembly 222 .

[0078] See also Figure 2The movable carrier 221 is provided with a position detector 24 at a preset height. The position detector 24 is used to detect the position of the clamping plate assembly 222 relative to the movable carrier 221. The position detector 24 is in communication with the control unit of the fixture system. When the position detector 24 detects that the clamping plate assembly 222 has slid to the preset height relative to the movable carrier 221, the control unit receives a signal and controls the manipulator to move the fixture system upward, away from the battery cell 100 at the preset position.

[0079] It can be understood that when there is no battery cell 100 at the preset work station, the clamping drive mechanism 21 and the fourth drive member 41 of the pressing and positioning unit 4 are actuated to release the battery cell 100, and the first drive member 33, the second drive member 34 and the third drive member 35 of the flattening unit 3 are actuated to release the tab 101 of the battery cell 100, so that the clamped battery cell 100 is placed at the preset work station.

[0080] Illustratively, the position detecting member 24 includes a sensor, such as an infrared sensor.

[0081] See also Figure 1 and Figure 2 A second guide rail 223 is provided on the movable carrier 221, and the second guide rail 223 extends along the Z direction. A second slider is provided on the clamping plate assembly 222, and the clamping plate assembly 222 can slide with the second guide rail 223 through the second slider to guide the relative sliding of the clamping plate assembly 222 and the movable carrier 221, thereby improving the sliding accuracy.

[0082] In this embodiment, the clamping plate assembly 222 includes a support plate 2221 and a clamping jaw 2222. The support plate 2221 is provided with the aforementioned second slider, which slides with the second guide rail 223 on the movable carrier 221 via the second slider. The fourth driving member 41 of the pressing and positioning unit 4 is provided on the support plate 2221. The clamping jaw 2222 is specifically L-shaped, with one end fixedly connected to the support plate 2221 and the other end used to support the battery cell 100. The fourth driving member 41 can drive the pressing member 42 to press the battery cell 100 against the L-shaped clamping jaw 2222. Furthermore, the clamping jaw 2222 is provided with the aforementioned clamping buffer.

[0083] This embodiment also provides a battery production line, including a manipulator and the clamping system as described above, wherein the frame 1 of the clamping system is connected to the manipulator, and driven by the manipulator, the clamped battery cell 100 is transported to a preset work station. Due to the adoption of the clamping system, the battery production line can flatten the tabs 101 of the battery cell 100 during the transportation of the battery cell 100 by the flattening unit 3 provided on the frame 1. Specifically, the first flattening member 31 and the second flattening member 32 of the flattening unit 3 are driven to move toward each other to clamp and flatten the tabs 101 therebetween, thereby preventing the tabs 101 from bending during the clamping and transportation process, and ensuring that the tabs 101 of the clamped battery cell 100 are flat and wrinkle-free. Subsequently, the tabs 101 can be directly welded and other processes can be carried out without the need to set up an additional structure for flattening the tabs 101 on the production line, thereby reducing production costs. Moreover, the tabs 101 can be flattened during the clamping and transportation of the battery cell 100, thereby saving production time and improving battery production efficiency.

[0084] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The fixture system is characterized by: include: Rack (1); A clamping unit (2) is provided on the frame (1), and the clamping unit (2) is used to clamp the battery cell (100); The flattening unit (3) comprises a first flattening member (31) and a second flattening member (32), wherein the first flattening member (31) and the second flattening member (32) are connected to the frame (1) so as to be movable toward or away from each other, and the first flattening member (31) and the second flattening member (32) can respectively press the tab (101) of the battery cell (100) on both sides of the tab (101).

2. The clamping system according to claim 1, characterized in that The leveling unit (3) further comprises: A first driving member (33), a housing of which is connected to the frame (1), the first flattening member (31) is connected to an output end of the first driving member (33), and the first driving member (33) is used to drive the first flattening member (31) to move linearly; The second driving member (34) has a housing connected to the frame (1), the second flattening member (32) is connected to the output end of the second driving member (34), and the second driving member (34) is used to drive the second flattening member (32) to move linearly.

3. The clamping system according to claim 2, characterized in that The leveling unit (3) further comprises: a third driving member (35), wherein the housing of the third driving member (35) is connected to the frame (1), the housing of the first driving member (33) is connected to the output end of the third driving member (35), and the third driving member (35) is used to drive the first driving member (33) to move linearly; The driving direction of the third driving member (35) is perpendicular to the driving direction of the first driving member (33).

4. The clamping system according to claim 3, characterized in that The second flattening member (32) comprises: A mounting frame (321) connected to the output end of the second driving member (34); A pressure plate (322) is connected to the mounting frame (321), and a mounting space (320) is formed between the pressure plate (322) and the mounting frame (321). The housing of the third driving member (35) is connected to the mounting frame (321) and is located in the mounting space (320). The pressure plate (322) is configured to be detachably abutted against the tab (101).

5. The clamping system according to claim 1, wherein: The clamp system further comprises a pressing and positioning unit (4), wherein the pressing and positioning unit (4) comprises: a fourth driving member (41), connected to the clamping unit (2); A pressing member (42) is connected to the output end of the fourth driving member (41); the pressing member (42) can move linearly relative to the clamping unit (2) under the drive of the fourth driving member (41); and a cell limiting space is formed between the pressing member (42) and the clamping unit (2).

6. The clamping system according to claim 5, characterized in that A pressing buffer (43) is provided on the pressing member (42), and the pressing buffer (43) is configured to be in contact with the battery core (100); And / or, the clamping unit (2) includes two clamping mechanisms (22) that can be relatively close to or away from each other, the clamping mechanism (22) can be movably connected to the frame (1), and form the battery cell limiting space between the clamping mechanism (22) and the pressing member (42), and the two clamping mechanisms (22) are provided with a clamping buffer on at least one side facing each other, and the clamping buffer is configured to be in contact with the battery cell (100).

7. The clamping system according to claim 1, wherein: The clamping unit (2) comprises: A clamping drive mechanism (21) is provided on the frame (1); Two clamping mechanisms (22) are provided, and the clamping mechanisms (22) include a movable carrier (221) and a clamping assembly (222). The movable carriers (221) of the two clamping mechanisms (22) are both transmission-connected to the output end of the clamping drive mechanism (21) so as to move toward or away from each other under the drive of the clamping drive mechanism (21); the clamping assembly (222) is slidably connected to the movable carrier (221) so as to approach or move away from the frame (1), and the clamping assembly (222) is used to clamp the battery cell (100).

8. The clamping system according to claim 7, characterized in that The clamping unit (2) further comprises an elastic member (23), wherein the elastic member (23) is connected between the movable carrier (221) and the clamping plate assembly (222), and the clamping plate assembly (222) can slide relative to the movable carrier (221) in a direction away from the frame (1) under the elastic force of the elastic member (23); And / or, a position detection component (24) is provided on the movable carrier (221), and the position detection component (24) is used to detect the position of the clamping plate assembly (222) relative to the movable carrier (221).

9. The clamping system according to claim 7, characterized in that The frame (1) is provided with a first guide rail (5), and the movable carrier (221) is slidably engaged with the first guide rail (5); And / or, a second guide rail (223) is provided on the movable carrier (221), and the clamping plate assembly (222) is slidably engaged with the second guide rail (223).

10. Battery production line, characterized in that, It comprises a manipulator and a clamping system according to any one of claims 1 to 9, wherein a frame (1) of the clamping system is connected to the manipulator.

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