Assembly equipment

Abstract

The utility model discloses assembling equipment, and relates to the technical field of battery processing equipment, and the assembling equipment comprises a support frame and an assembling tool; the assembling tool is arranged on the supporting frame and comprises an assembling platform, a first positioning mechanism, a second positioning mechanism and a large face pushing mechanism. Wherein the first positioning mechanism is arranged on the assembling platform and is configured to position the end plate; the second positioning mechanism is arranged on the assembling platform and is configured to position the battery cell; and the large-surface pushing mechanism is arranged on the assembling platform and is configured to press the end plate and the battery cell. According to the technical scheme provided by the invention, the problem of low assembly precision of the end plate and the battery cell can be solved.

Description

Technical Field

[0001] This application relates to the technical field of battery processing equipment, and particularly relates to an assembly device. Background Art

[0002] With the rapid development of society, the demand for electric vehicles has been increasing year by year. The energy of electric vehicles mainly comes from battery packs. The smallest unit of a battery pack is a battery cell, which is an electric energy storage unit. When multiple battery cells are encapsulated together by the same outer shell frame and are connected to the outside through a unified boundary, it becomes a battery module. After several battery modules are jointly controlled or managed by a BMS (battery management system) and a thermal management system, this unified whole is a battery pack. And the process of placing multiple battery cells in the same outer shell is called the stacking process of the battery module. Before stacking, usually the first battery cell and the last battery cell are respectively assembled with two end plates to form an end plate assembly.

[0003] In the related art, a robot gripper is used to grab the end plate and the battery cell and place them on the stacking inclined platform buffer table, and then the stacking inclined platform gripper grabs the end plate and the battery cell from the buffer table to complete the stacking and assembly. However, the positions of grabbing the end plate and the battery cell to the buffer table are different, resulting in low assembly accuracy between the end plate and the battery cell. Summary of the Utility Model

[0004] In view of the above problems, this application provides an assembly device, aiming to solve the problem of low assembly accuracy between the end plate and the battery cell.

[0005] This application provides an assembly device, including a support frame and an assembly tooling; the assembly tooling is arranged on the support frame, and the assembly tooling includes an assembly platform, a first positioning mechanism, a second positioning mechanism, and a large surface pressing mechanism; wherein, the first positioning mechanism is arranged on the assembly platform and is configured to position the end plate; the second positioning mechanism is arranged on the assembly platform and is configured to position the battery cell; the large surface pressing mechanism is arranged on the assembly platform and is configured to press the end plate and the battery cell.

[0006] In the technical solution of the embodiment of the present application, the technical solution of the present application uses an assembly device to realize the stacked assembly of the end plate and the battery cell. First, the end plate is placed on the assembly platform, and the first positioning mechanism is used to position the end plate; then the battery cell is placed on the assembly platform, and the second positioning mechanism is used to position the battery cell; finally, the large surface pushing and pressing mechanism is used to push the battery cell towards the end plate to press the end plate and the battery cell, and finally complete the assembly of the end plate assembly. Therefore, the assembly device provided by the present application directly places the end plate and the battery cell on the assembly platform, and then uses the cooperation of the first positioning mechanism, the second positioning mechanism and the large surface pushing and pressing mechanism to realize the automatic assembly of the end plate assembly, without using a robot gripper to grab the end plate and the battery cell and place them on the stacking inclined platform buffer table, and then using the stacking inclined platform gripper to grab the end plate and the battery cell from the buffer table to complete the stacking assembly, thereby reducing the dimensional loop, improving the flatness of the bottom and side surfaces of the battery cell, and thus improving the assembly accuracy.

[0007] In some embodiments, the first positioning mechanism is configured to position the end plate in the first direction and the second direction; the second positioning mechanism is configured to position the battery cell in the first direction and the second direction; the large surface pushing and pressing mechanism is configured to press the end plate and the battery cell in the third direction; the first direction, the second direction and the third direction are arranged at an angle to each other. With such a design, the first positioning mechanism can be used to position the end plate in the X-axis and Z-axis directions to improve the flatness of the bottom and side surfaces of the end plate, and improve the positioning accuracy of the end plate; and the second positioning mechanism can be used to position the battery cell in the X-axis and Z-axis directions to improve the flatness of the bottom and side surfaces of the battery cell, and improve the positioning accuracy of the battery cell. In addition, by using the large surface pushing and pressing mechanism to push the battery cell towards the end plate in the Y-axis direction and pressing the assembled end plate assembly, the positioning effect of the end plate and the battery cell will not be affected during the pushing and pressing process, so as to achieve the effects of high positioning accuracy and automatic stacking assembly at the same time.

[0008] In some embodiments, the first positioning mechanism includes a first centering mechanism and a first pressing mechanism; the first centering mechanism is configured to position the end plate in the first direction; the first pressing mechanism is configured to position the end plate in the second direction. With such a design, the first centering mechanism can be used to position the end plate in the first direction, and then center the end plate in the first direction to improve the flatness of the side surface of the end plate; at the same time, the first pressing mechanism can be used to position the end plate in the second direction to press the end plate against the surface of the assembly platform, so that the end plate is closely attached to the surface of the assembly platform to improve the flatness of the bottom surface of the end plate.

[0009] In some embodiments, the first centering mechanism includes a first driving member and two relatively arranged first baffles. The first baffles are drivingly connected to the first driving member, and the first driving member drives the two first baffles to approach or move away from each other to clamp or release the end plate in the first direction. With such a design, when the first driving member drives the two first baffles to approach each other, the end plate can be clamped by the two first baffles to center the end plate; when the first driving member drives the two first baffles to move away from each other, the two first baffles release the end plate assembly, facilitating the removal of the stacked battery modules.

[0010] In some embodiments, the first pressing mechanism includes a second driving member and a first pressing member. The first pressing member is drivingly connected to the second driving member, and the second driving member drives the first pressing member to move up and down to press or release the end plate in the second direction. With such a design, when the second driving member drives the first pressing member to descend, the end plate can be pressed against the tabletop of the assembly platform in the second direction by the first pressing member to improve the flatness of the bottom plane of the end plate; when the second driving member drives the first pressing member to ascend, the first pressing member releases the end plate, facilitating the removal of the stacked and assembled end plate assembly.

[0011] In some embodiments, the second positioning mechanism includes a second centering mechanism and a second pressing mechanism; the second centering mechanism is configured to position the battery cell in the first direction; the second pressing mechanism is configured to position the battery cell in the second direction. With such a design, the second centering mechanism can be used to center the battery cell in the first direction to improve the flatness of the side plane of the battery cell; at the same time, the second pressing mechanism can be used to position the battery cell in the second direction to press the battery cell against the tabletop of the assembly platform, making the battery cell closely adhere to the tabletop of the assembly platform to improve the flatness of the bottom plane of the battery cell, thereby improving the stacking and assembly accuracy of the end plate assembly.

[0012] In some embodiments, the second centering mechanism includes a third driving member and two relatively arranged second baffles. The second baffles are drivingly connected to the third driving member, and the third driving member drives the two second baffles to approach or move away from each other to clamp or release the battery cell in the first direction. With such a design, when the third driving member drives the two second baffles to approach each other, the battery cell can be clamped by the two second baffles to center the battery cell; when the third driving member drives the two second baffles to move away from each other, the two second baffles release the battery cell, facilitating the removal of the stacked and assembled end plate assembly.

[0013] In some embodiments, the second pressing mechanism includes a fourth driving member and a second pressing member. The second pressing member is drivingly connected to the fourth driving member, and the fourth driving member drives the second pressing member to move up and down to press or release the battery cell in the second direction. With such a design, when the fourth driving member drives the second pressing member to descend, the battery cell can be pressed against the tabletop of the assembly platform in the second direction by the second pressing member, so as to improve the flatness of the bottom surface of the battery cell; when the fourth driving member drives the second pressing member to ascend, the second pressing member releases the battery cell, facilitating the removal of the assembled end plate assembly.

[0014] In some embodiments, the first positioning mechanism and the second positioning mechanism are spaced apart along the third direction, and the large surface pressing mechanism is disposed on the side of the second positioning mechanism away from the first positioning mechanism. With such a design, the large surface pressing mechanism can smoothly push the battery cell towards the end plate, and at the same time make the arrangement of the overall structure more compact, so as to achieve the effect of reducing the volume.

[0015] In some embodiments, a limiting baffle is further provided on the assembly platform. The limiting baffle is disposed on the side of the first positioning mechanism away from the second positioning mechanism, and the limiting baffle is configured to resist the end plate, so that the end plate assembly composed of the end plate and the battery cell is clamped between the large surface pressing mechanism and the limiting baffle. With such a design, when the large surface pressing mechanism pushes the battery cell towards the end plate, the side of the end plate away from the battery cell will abut against the limiting baffle, so as to resist the end plate through the limiting baffle. At this time, when the large surface pressing mechanism continues to provide a pressing force, the end plate assembly composed of the end plate and the battery cell can be clamped between the large surface pressing mechanism and the limiting baffle.

[0016] In some embodiments, the assembly device further includes a loading table and a loading mechanism; the loading table is disposed on one side of the support frame and is configured to place the end plate and the battery cell; the loading mechanism is disposed on one side of the support frame and is configured to convey the end plate and the battery cell on the loading table to the assembly platform. With such a design, the loading mechanism can automatically convey the end plate and the battery cell on the loading table to the tabletop of the assembly platform, so as to realize automatic loading.

[0017] In some embodiments, the feeding mechanism includes a feeding moving member, a flipping mechanism, and a material taking member; the feeding moving member moves between the feeding table and the assembly platform and has a free end; the flipping mechanism is disposed at the free end of the feeding moving member and has a flipping portion that can flip relative to the feeding moving member; the material taking member is disposed on the flipping portion and flips with the flipping portion, and the material taking member is configured to grasp the end plate and the battery cell. With such a design, when the feeding moving member drives the flipping mechanism and the material taking member to move above the feeding table, the material taking member grasps the end plate on the feeding table. Since the end plate is in a horizontal state when taken from the feeding table, and the end plate needs to be in a vertical state when assembled with the battery cell, the flipping portion of the flipping mechanism can drive the material taking member and the end plate to flip from the horizontal state to the vertical state. Then, the feeding moving member drives the flipping mechanism and the material taking member to move above the assembly platform, and finally, the end plate is placed on the tabletop of the assembly platform by releasing the end plate through the material taking member. Therefore, the feeding member can simultaneously have the functions of automatic feeding and adjusting the state of the end plate.

[0018] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make other purposes, features, and advantages of the present application more obvious and understandable, the following specifically gives the specific embodiments of the present application. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the assembly device of the present application;

[0021] Figure 2 It is a schematic structural diagram of the assembly tooling in an embodiment of the assembly device of the present application;

[0022] Figure 3 It is a schematic structural diagram of the feeding mechanism in an embodiment of the assembly device of the present application.

[0023] Explanation of the Reference Numerals in the Drawings:

[0024]

[0025] The realization of the purpose, functional characteristics, and advantages of the present application will be further described in conjunction with the embodiments with reference to the drawings. Detailed Embodiments

[0026] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the description of the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0029] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] In the description of the embodiments of this application, the term "a plurality" means more than two (including two). Similarly, "a plurality of groups" means more than two groups (including two groups), and "a plurality of pieces" means more than two pieces (including two pieces).

[0031] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0032] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "linkage", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0033] With the rapid development of society, the demand for electric vehicles has been increasing year by year. The energy of electric vehicles mainly comes from the battery pack. The smallest unit of the battery pack is the battery cell, which is an electric energy storage unit. When multiple battery cells are encapsulated together by the same outer shell frame and communicate with the outside through a unified boundary, it becomes a battery module. After several battery modules are jointly controlled or managed by the BMS (battery management system) and the thermal management system, this unified whole is the battery pack, and the process of placing multiple battery cells in the same outer shell is called the stacking process of the battery module. Before stacking, usually the first battery cell and the last battery cell are respectively assembled with two end plates to form an end plate assembly.

[0034] In the related art, the end plate and the battery cell are grabbed by a robot gripper and placed on the stacking inclined platform buffer table, and then the end plate and the battery cell are grabbed from the buffer table by the stacking inclined platform gripper to complete the stacking assembly. However, the positions of the end plate and the battery cell grabbed to the buffer table are different, resulting in low assembly accuracy of the end plate and the battery cell.

[0035] Based on the above problems, the present application proposes an assembly device 100, aiming to solve the problem of low assembly accuracy of the end plate and the battery cell. The following will be described in detail with specific drawings and embodiments.

[0036] Please refer to Figures 1 to 3 , in an embodiment of the present application, the assembly device 100 includes a support frame 10 and an assembly tooling 20; the assembly tooling 20 is provided on the support frame 10, and the assembly tooling 20 includes an assembly platform 21, a first positioning mechanism 22, a second positioning mechanism 23, and a large surface pressing mechanism 24; wherein, the first positioning mechanism 22 is provided on the assembly platform 21 and is configured to position the end plate; the second positioning mechanism 23 is provided on the assembly platform 21 and is configured to position the battery cell; the large surface pressing mechanism 24 is provided on the assembly platform 21 and is configured to press the end plate and the battery cell.

[0037] The support frame 10 is used to install and fix the assembly tooling 20, so that the assembly tooling 20 has high stability during the assembly process. The support frame 10 may include a support skeleton and a mounting plate. The mounting plate is supported on multiple support skeletons, so that the multiple support skeletons and the mounting plate can form a structure in the shape of a cube, a cylinder, etc. The assembly tooling 20 is installed on the mounting plate.

[0038] The assembly tooling 20 is used to automatically stack and assemble the end plate assembly. The first positioning mechanism 22, the second positioning mechanism 23, and the large surface pressing mechanism 24 are all installed on the tabletop of the assembly platform 21.

[0039] The first positioning mechanism 22 can position the end plate, and the positioning directions include but are not limited to the horizontal direction and the vertical direction. The first positioning machine can use one or more of the methods such as centering, pressing, clamping, and clamping to position the end plate.

[0040] The second positioning mechanism 23 can position the battery cell, and the positioning directions include but are not limited to the horizontal direction and the vertical direction, so that the flatness of the bottom and the side between the end plate and the battery cell is kept consistent. The second positioning mechanism 23 can also use one or more of the methods such as centering, pressing, clamping, and clamping to position the battery cell.

[0041] The large surface pressing mechanism 24 can push the battery cell towards the end plate and press the battery cell and the end plate. The large surface pressing mechanism 24 can use the cooperation of a cylinder and a push rod to push the battery cell and press the end plate and the battery cell, or can also use the cooperation of a cylinder and a screw nut, the cooperation of a cylinder and a rack and pinion to push the battery cell and press the end plate and the battery cell.

[0042] The assembly tooling 20 can assemble one end plate assembly, or can also assemble at least two end plate assemblies simultaneously. It can be understood that the first positioning mechanism 22, the second positioning mechanism 23, and the large surface pressing mechanism 24 of the assembly tooling 20 are defined as an assembly unit. One or at least two assembly units can be provided on the assembly platform 21 of the assembly tooling 20. When at least two assembly units are provided, the at least two assembly units can be arranged at intervals in the first direction a.

[0043] In summary, in the technical solution of the embodiment of the present application, the technical solution of the present application uses the assembly device 100 to realize the stacked assembly of the end plate and the battery cell. First, the end plate is placed on the assembly platform 21, and the first positioning mechanism 22 is used to position the end plate; then the battery cell is placed on the assembly platform 21, and the second positioning mechanism 23 is used to position the battery cell; finally, the large surface pushing and pressing mechanism 24 is used to push the battery cell towards the end plate to press the end plate and the battery cell, and finally complete the assembly of the end plate assembly. Therefore, the assembly device 100 provided by the present application directly places the end plate and the battery cell on the assembly platform 21, and then uses the cooperation of the first positioning mechanism 22, the second positioning mechanism 23 and the large surface pushing and pressing mechanism 24 to realize the automatic assembly of the end plate assembly, without using a robot gripper to grab the end plate and the battery cell and place them on the stacking inclined platform buffer table, and then using the stacking inclined platform gripper to grab the end plate and the battery cell from the buffer table to complete the stacking assembly, thereby reducing the dimensional loop, improving the flatness of the bottom and side surfaces of the battery cell, and improving the assembly accuracy.

[0044] Please refer to Figure 2 , in an embodiment of the present application, the first positioning mechanism 22 is configured to position the end plate in the first direction a and the second direction b; the second positioning mechanism 23 is configured to position the battery cell in the first direction a and the second direction b; the large surface pushing and pressing mechanism 24 is configured to press the end plate and the battery cell in the third direction c; the first direction a, the second direction b, and the third direction c are arranged at an angle to each other in pairs.

[0045] In this embodiment, the first direction a, the second direction b, and the third direction c may be the X-axis, Z-axis, and Y-axis directions respectively. The first positioning mechanism 22 can position the end plate in the X-axis and Z-axis directions; the second positioning mechanism 23 can position the battery cell in the X-axis and Z-axis directions; the large surface pushing and pressing mechanism 24 can push the battery cell in the Y-axis direction and press the end plate and the battery cell.

[0046] With such a design, the first positioning mechanism 22 can position the end plate in the X-axis and Z-axis directions to improve the flatness of the bottom and side surfaces of the end plate, and can improve the positioning accuracy of the end plate; and the second positioning mechanism 23 can position the battery cell in the X-axis and Z-axis directions to improve the flatness of the bottom and side surfaces of the battery cell, and can improve the positioning accuracy of the battery cell. In addition, by using the large surface pushing and pressing mechanism 24 to push the battery cell towards the end plate in the Y-axis direction and pressing the end plate assembly after stacking and assembling, the positioning effect of the end plate and the battery cell will not be affected during the pushing and pressing process, so as to achieve the effects of high positioning accuracy and automatic stacking and assembling at the same time.

[0047] Please refer to Figure 2In one embodiment of the present application, the first positioning mechanism 22 includes a first centering mechanism 221 and a first clamping mechanism 222; the first centering mechanism 221 is configured to position the end plate in a first direction a; the first clamping mechanism 222 is configured to position the end plate in a second direction b.

[0048] The first centering mechanism 221 is used to clamp or release the end plate in the first direction a, and when clamping the end plate, the end plate can be centered. The first centering mechanism 221 can be a structure in which a cylinder cooperates with a first transmission member, wherein the first transmission member can be a baffle, a push rod, a clamping claw, or other structural members.

[0049] The first clamping mechanism 222 is used to clamp or release the end plate in the second direction b so that the end plate is tightly attached to the table surface of the assembly platform 21. The first clamping mechanism 222 can also be a structure in which a cylinder cooperates with a second transmission member, wherein the second transmission member can be a pressure block, a pressure plate, a push rod or other structural members.

[0050] With such a design, the first centering mechanism 221 can be used to position the end plate in the first direction a, and then the end plate can be centered in the first direction a to improve the side flatness of the end plate; at the same time, the first clamping mechanism 222 can be used to position the end plate in the second direction b to press the end plate against the table top of the assembly platform 21, so that the end plate is tightly attached to the table top of the assembly platform 21 to improve the bottom flatness of the end plate.

[0051] See also Figure 2 In one embodiment of the present application, the first centering mechanism 221 includes a first driving member 2211 and two oppositely arranged first baffles 2212, the first baffles 2212 are transmission-connected to the first driving member 2211, and the first driving member 2211 drives the two first baffles 2212 to move closer to or away from each other to clamp or release the end plate in the first direction a.

[0052] The first driving member 2211 provides power for the two first baffles 2212 to move closer to or away from each other. The first driving member 2211 may include a cylinder and two output members. The output member may be a push rod, or a screw nut, or a gear rack structure. The two first baffles 2212 are respectively connected to the two output members, and the two output members are driven to move by the cylinder, and then the two first baffles 2212 are respectively driven by the two output members to move closer to or away from each other.

[0053] With such a design, when the two first baffles 2212 are driven toward each other by the first driving member 2211, the end plate can be clamped by the two first baffles 2212 to center the end plate; when the two first baffles 2212 are driven away from each other by the first driving member 2211, the two first baffles 2212 release the end plate assembly to facilitate removal of the stacked battery module.

[0054] Please refer to Figure 2 Figure 2 , in an embodiment of the present application, the first pressing mechanism 222 includes a second driving member 2221 and a first pressing member 2222. The first pressing member 2222 is drivingly connected to the second driving member 2221, and the second driving member 2221 drives the first pressing member 2222 to move up and down to press or release the end plate in the second direction b.

[0055] The second driving member 2221 provides power for the lifting of the first pressing member 2222. The second driving member 2221 may only include a linear motor, and the first pressing member 2222 is directly connected to the output shaft of the linear motor to move up and down with the output shaft of the linear motor; alternatively, the second driving member 2221 may also include a rotary motor and a lead screw nut. The lead screw is connected to the output shaft of the rotary motor, and the first pressing member 2222 is connected to the nut. The rotary motor can drive the lead screw to rotate, so that the nut moves along the length direction of the lead screw, and then drives the first pressing member 2222 to move up and down through the nut.

[0056] With such a design, when the second driving member 2221 drives the first pressing member 2222 to descend, the first pressing member 2222 can press the end plate against the tabletop of the assembly platform 21 in the second direction b to improve the flatness of the bottom plane of the end plate; when the second driving member 2221 drives the first pressing member 2222 to ascend, the first pressing member 2222 releases the end plate to facilitate the removal of the stacked and assembled end plate combination.

[0057] Please refer to Figure 2 Figure 2 , in an embodiment of the present application, the second positioning mechanism 23 includes a second centering mechanism 231 and a second pressing mechanism 232; the second centering mechanism 231 is configured to position the battery cell in the first direction a; the second pressing mechanism 232 is configured to position the battery cell in the second direction b.

[0058] The second centering mechanism 231 is used to clamp or release the battery cell in the first direction a. When clamping the battery cell, it can center and position the battery cell to keep the flatness of the end plate and the side surface of the battery cell consistent. The second centering mechanism 231 may be a structure of a cylinder cooperating with a third transmission member, where the third transmission member may be a baffle, a push rod, a jaw and other structural members.

[0059] The second pressing mechanism 232 is used to press or release the battery cell in the second direction b to make the battery cell closely adhere to the tabletop of the assembly platform 21. The second pressing mechanism 232 may also be a structure of a cylinder cooperating with a fourth transmission member, where the fourth transmission member may be a pressing block, a pressing plate, a push rod and other structural members.

[0060] With such a design, a second centering mechanism 231 can be used to center the battery cell in the first direction a to improve the side flatness of the battery cell; at the same time, a second clamping mechanism 232 can be used to position the battery cell in the second direction b to press the battery cell against the table surface of the assembly platform 21 so that the battery cell is tightly attached to the table surface of the assembly platform 21 to improve the bottom flatness of the battery cell, thereby improving the stacking assembly accuracy of the end plate assembly.

[0061] See also Figure 2 In one embodiment of the present application, the second centering mechanism 231 includes a third driving member 2311 and two oppositely arranged second baffles 2312, the second baffles 2312 are transmission-connected to the third driving member 2311, and the third driving member 2311 drives the two second baffles 2312 to move closer to or away from each other to clamp or release the battery cell in the first direction a.

[0062] The third driving member 2311 provides power for the two second baffles 2312 to move closer to or away from each other. The third driving member 2311 may include a cylinder and two output members. The output member may be a push rod, or a screw nut or a gear rack structure. The two second baffles 2312 are respectively connected to the two output members, and the two output members are driven to move by the cylinder, and then the two second baffles 2312 are respectively driven by the two output members to move closer to or away from each other.

[0063] With such a design, when the two second baffles 2312 are driven toward each other by the third driving member 2311, the battery cells can be clamped by the two second baffles 2312 to center the battery cells; when the two second baffles 2312 are driven away from each other by the third driving member 2311, the two second baffles 2312 release the battery cells to facilitate removal of the stacked assembled end plate assembly.

[0064] See also Figure 2 In one embodiment of the present application, the second clamping mechanism 232 includes a fourth driving member 2321 and a second clamping member 2322. The second clamping member 2322 is transmission-connected to the fourth driving member 2321. The fourth driving member 2321 drives the second clamping member 2322 to rise and fall to clamp or release the battery cell in the second direction b.

[0065] The fourth driving member 2321 provides power for the lifting and lowering of the second clamping member 2322. The fourth driving member 2321 may only include a linear motor to directly connect the second clamping member 2322 to the output shaft of the linear motor so that it can be lifted and lowered along with the output shaft of the linear motor; or, the fourth driving member 2321 may also include a rotating motor and a screw nut to connect the screw to the output shaft of the rotating motor, and connect the second clamping member 2322 to the nut. The rotating motor can drive the screw to rotate so that the nut moves along the length direction of the screw, and then drive the second clamping member 2322 to be lifted and lowered through the nut.

[0066] With such a design, when the second clamping member 2322 is driven down by the fourth driving member 2321, the battery cell can be pressed against the table top of the assembly platform 21 in the second direction b by the second clamping member 2322 to improve the bottom flatness of the battery cell; when the second clamping member 2322 is driven up by the fourth driving member 2321, the second clamping member 2322 releases the battery cell to facilitate removal of the stacked assembled end plate assembly.

[0067] See also Figure 2 In one embodiment of the present application, the large-surface pushing mechanism 24 may include a fifth driving member 241 and a pushing member 242. The pushing member 242 is transmission-connected to the fifth driving member 241. The fifth driving member 241 drives the pushing member 242 to move toward or away from the second positioning mechanism 23. When the fifth driving member 241 drives the pushing member 242 to move toward the second positioning mechanism 23, the battery cell is pushed toward the end plate in the third direction c, and the battery cell and the end plate are pressed.

[0068] The fifth driving member 241 provides power for the movement of the pushing member 242. The fifth driving member 241 may only include a linear motor to directly connect the pushing member 242 to the output shaft of the linear motor so that it moves in the third direction c along with the output shaft of the linear motor; or, the fifth driving member 241 may also include a rotating motor and a screw nut to connect the screw to the output shaft of the rotating motor, and connect the pushing member 242 to the nut. The rotating motor can drive the screw to rotate so that the nut moves along the length direction of the screw, and then drive the pushing member 242 to move in the third direction c through the nut.

[0069] With such a design, when the pushing member 242 is driven by the fifth driving member 241 to move toward the second positioning mechanism 23, the battery cell can be pushed toward the end plate in the third direction c by the pushing member 242 to press the battery cell and the end plate together, while maintaining the pressure of the stacked assembled end plate assembly; when the pushing member 242 is driven by the fifth driving member 241 to move away from the second positioning mechanism 23, the pushing member 242 releases the end plate assembly to facilitate the removal of the stacked assembled end plate assembly.

[0070] See alsoFigure 2 In an embodiment of the present application, the first positioning mechanism 22 and the second positioning mechanism 23 are spaced apart along the third direction c, and the large-surface pushing mechanism 24 is disposed on the side of the second positioning mechanism 23 away from the first positioning mechanism 22.

[0071] With such a design, the large-surface pushing mechanism 24 can smoothly push the battery cell towards the end plate, and at the same time make the arrangement of the overall structure more compact, so as to achieve the effect of reducing the volume.

[0072] Please refer to Figure 2 In an embodiment of the present application, a limit baffle 211 is further provided on the assembly platform 21. The limit baffle 211 is disposed on the side of the first positioning mechanism 22 away from the second positioning mechanism 23, and the limit baffle 211 is configured to resist the end plate, so that the end plate assembly formed by the end plate and the battery cell is clamped between the large-surface pushing mechanism 24 and the limit baffle 211.

[0073] With such a design, when the large-surface pushing mechanism 24 pushes the battery cell towards the end plate, the side of the end plate away from the battery cell will abut against the limit baffle 211, so as to resist the end plate through the limit baffle 211. At this time, when the large-surface pushing mechanism 24 continues to provide a pushing force, the end plate assembly formed by the end plate and the battery cell can be clamped between the large-surface pushing mechanism 24 and the limit baffle 211.

[0074] Please refer to Figures 1 to 3 In an embodiment of the present application, the assembly device 100 further includes a loading table 30 and a loading mechanism 40; the loading table 30 is disposed on one side of the support frame 10 and is configured to place the end plate and the battery cell; the loading mechanism 40 is disposed on one side of the support frame 10 and is configured to convey the end plate and the battery cell on the loading table 30 to the assembly platform 21.

[0075] The loading table 30 is used to place the end plate and the battery cell. The loading table 30 may be provided with a first fixture and a second fixture for placing the end plate and the battery cell respectively, so as to facilitate the loading mechanism 40 to pick up the end plate and the battery cell.

[0076] The feeding mechanism 40 is used to convey the end plates and battery cells on the feeding table 30 to the tabletop of the assembly platform 21. The feeding mechanism 40 can be a manipulator or a structure composed of a three-axis moving mechanism and a gripper. For example, the three-axis moving mechanism can include an X-axis moving mechanism, a Y-axis moving mechanism, and a Z-axis moving mechanism; the X-axis moving mechanism can include an X-axis track, a first slider, and a first driving motor, and the first driving motor drives the first slider to slide along the X-axis track; the Y-axis moving mechanism can include a Y-axis track, a second slider, and a second driving motor, the Y-axis track is connected to the first slider, and the second driving motor drives the second slider to slide along the Y-axis track; the Z-axis moving mechanism can include a Z-axis track, a third slider, and a third driving motor, the Z-axis track is connected to the second slider, and the third driving motor drives the third slider to slide along the Z-axis track. Therefore, the gripper can be driven by the three-axis moving mechanism to move in three-dimensional space, so as to smoothly convey the end plates and battery cells to the tabletop of the assembly platform 21 through the gripper.

[0077] With such a design, the feeding mechanism 40 can automatically convey the end plates and battery cells on the feeding table 30 to the tabletop of the assembly platform 21 to achieve automatic feeding.

[0078] Please refer to Figure 3 , in an embodiment of the present application, the feeding mechanism 40 includes a feeding moving part 41, a flipping mechanism 42, and a material taking part 43; the feeding moving part 41 moves between the feeding table 30 and the assembly platform 21 and has a free end; the flipping mechanism 42 is arranged at the free end of the feeding moving part 41 and has a flipping part, and the flipping part can flip relative to the feeding moving part 41; the material taking part 43 is arranged on the flipping part and flips with the flipping part, and the material taking part 43 is configured to grab the end plates and battery cells.

[0079] The feeding moving part 41 can be a manipulator or a structure composed of a three-axis moving mechanism and a gripper.

[0080] The flipping mechanism 42 can include a flipping motor and a flipping part, and the flipping motor can drive the flipping part to flip within a range of 360 degrees, thereby driving the material taking part 43 to flip within a range of 360 degrees.

[0081] The material taking part 43 can be a gripper or a structure such as a suction cup.

[0082] In such a design, when the feeding moving part 41 drives the flipping mechanism 42 and the material taking part 43 to move above the feeding table 30, the material taking part 43 grabs the end plate on the feeding table 30. Since the end plate is in a horizontal state when taken away from the feeding table 30, and the end plate needs to be in a vertical state when assembled with the battery cell, the flipping part of the flipping mechanism 42 can drive the material taking part 43 and the end plate to flip from the horizontal state to the vertical state. Then, the feeding moving part 41 drives the flipping mechanism 42 and the material taking part 43 to move above the assembly platform 21. Finally, the end plate can be placed on the tabletop of the assembly platform 21 by releasing the end plate through the material taking part 43. Therefore, the feeding part can simultaneously have the functions of automatic feeding and adjusting the state of the end plate.

[0083] According to some embodiments of the present application, the present application provides an assembly device 100. Please refer to Figures 1 to 3 , the assembly steps of the assembly device 100 can be as follows: convey the end plate to the grasping waiting position through the feeding table 30; after the material taking part 43 of the feeding mechanism 40 grabs the end plate, the flipping mechanism 42 drives the material taking part 43 and the end plate to flip; place the end plate on the assembly platform 21 corresponding to the first positioning mechanism 22 according to the servo position; the first centering mechanism 221 extends to perform centering and positioning on the end plate; the first pressing mechanism 222 extends to perform second-direction b (Z-direction) limiting and positioning on the end plate to complete the fine positioning (secondary positioning) of the end plate; the material taking part 43 of the feeding mechanism 40 then grabs the battery cell and places the battery cell on the assembly platform 21 corresponding to the second positioning mechanism 23; the second centering mechanism 231 extends to perform centering and positioning on the battery cell; the second pressing mechanism 232 extends to perform second-direction b (Z-direction) limiting and positioning on the battery cell; finally, the large surface pushing and pressing mechanism 24 acts to complete the precise positioning and fitting of the end plate and the battery cell.

[0084] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made under the technical concept of the present application by using the content of the specification and drawings of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. An assembly device, characterized in that: include: Support frame; An assembly tool is arranged on the support frame, and the assembly tool comprises an assembly platform, a first positioning mechanism, a second positioning mechanism and a large-surface tightening mechanism; Among them, the first positioning mechanism is arranged on the assembly platform and is configured to position the end plate; the second positioning mechanism is arranged on the assembly platform and is configured to position the battery cell; the large-surface pushing mechanism is arranged on the assembly platform and is configured to press the end plate and the battery cell.

2. The assembly device according to claim 1, characterized in that The first positioning mechanism is configured to position the end plate in a first direction and a second direction; The second positioning mechanism is configured to position the battery cell in a first direction and a second direction; The large-surface pressing mechanism is configured to press the end plate and the battery cell in a third direction; The first direction, the second direction and the third direction are arranged at an angle to each other.

3. The assembly device according to claim 2, characterized in that: The first positioning mechanism comprises: a first centering mechanism configured to position the end plate in the first direction; The first pressing mechanism is configured to position the end plate in the second direction.

4. The assembly device according to claim 3, characterized in that: The first centering mechanism comprises a first driving member and two first baffles arranged opposite to each other, wherein the first baffles are transmission-connected to the first driving member, and the first driving member drives the two first baffles to move closer to or away from each other, so as to clamp or release the end plate in the first direction; And / or, the first clamping mechanism includes a second driving member and a first clamping member, the first clamping member is transmission-connected to the second driving member, and the second driving member drives the first clamping member to rise and fall so as to clamp or release the end plate in the second direction.

5. The assembly device according to claim 2, characterized in that: The second positioning mechanism comprises: A second centering mechanism is configured to position the battery cell in the first direction; The second pressing mechanism is configured to position the battery cell in the second direction.

6. The assembly device according to claim 5, characterized in that The second centering mechanism comprises a third driving member and two second baffles arranged opposite to each other, the second baffles are transmission-connected to the third driving member, and the third driving member drives the two second baffles to move closer to or away from each other to clamp or release the battery cell in the first direction; And / or, the second clamping mechanism includes a fourth driving member and a second clamping member, the second clamping member is transmission-connected to the fourth driving member, and the fourth driving member drives the second clamping member to rise and fall so as to clamp or release the battery cell in the second direction.

7. The assembly device according to any one of claims 1 to 6, characterized in that: The first positioning mechanism and the second positioning mechanism are spaced apart and distributed along the third direction, and the large-surface pushing mechanism is arranged on a side of the second positioning mechanism away from the first positioning mechanism.

8. The assembly device according to claim 7, characterized in that The assembly platform is also provided with a limit baffle, which is arranged on the side of the first positioning mechanism away from the second positioning mechanism, and is configured to resist the end plate so that the end plate assembly consisting of the end plate and the battery cell is clamped between the large-surface pushing mechanism and the limit baffle.

9. The assembly device according to any one of claims 1 to 6, characterized in that: The assembly equipment also includes: A loading platform, disposed on one side of the support frame, configured to place end plates and battery cells; The loading mechanism is arranged on one side of the support frame and is configured to transport the end plate and the battery cell on the loading platform to the assembly platform.

10. The assembly device according to claim 9, characterized in that The feeding mechanism comprises: A feeding moving component moves between the feeding platform and the assembling platform and has a free end; A turning mechanism is provided at the free end of the feeding moving component and has a turning portion, and the turning portion can turn relative to the feeding moving component; The material picking piece is arranged on the flipping part to flip along with the flipping part, and the material picking piece is configured to grab the end plate and the battery cell.

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