Lithium battery cell assembly structure

Abstract

The utility model discloses a lithium battery cell assembling structure, and relates to the technical field of lithium battery production, the lithium battery cell assembling structure is used for assembling a shell and a cell of a cylindrical lithium battery, the lithium battery cell assembling structure comprises a base, a feeding structure and an assembling structure, the base is provided with an assembling station, the feeding structure is arranged on the base, and the assembling station is arranged on the base. The assembling structure comprises a clamping structure and a pressing structure, the clamping structure and the pressing structure are movably mounted on the base, the clamping structure is used for placing a battery cell in a battery shell, and the pressing structure is used for pressing one end of the battery cell; according to the structure disclosed by the utility model, after the battery cell is placed in the battery shell, one end part of the battery cell can be synchronously pressed through the pressing structure, so that the battery cell can be mounted in place in the battery shell, the continuity is strong in the whole assembly production process, each structure is compact, and the production efficiency is ensured while the production material is favorably saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field, especially a lithium battery cell assembly structure. BACKGROUND

[0002] Cylindrical lithium batteries are widely used in notebook computers, digital cameras, lighting lamps, toy products, electric tools, portable power sources and other fields in people's daily life.

[0003] The composition structure of cylindrical lithium batteries includes a shell, a cell, a circuit board and an end cover, and in the actual production process, the relevant elements need to be assembled in sequence. Among them, the assembly of the battery shell and the battery cell is generally divided into two kinds, one is to install the cell and the shell manually, and the other is to assemble with the help of semi-automatic equipment. Due to the requirement of assembly gap between the shell inner cavity and the cell body, the above two methods have the problems of low production efficiency and the possibility of incomplete assembly of the cell. SUMMARY

[0004] The main purpose of the utility model is to provide a lithium battery cell assembly structure, which aims to solve the problems of low production efficiency and incomplete assembly of the cell in the traditional battery shell and cell assembly method.

[0005] To achieve the above purpose, the lithium battery cell assembly structure provided by the utility model is used for the assembly of the shell and the cell of the cylindrical lithium battery, and comprises:

[0006] A base is provided with an assembly station;

[0007] A feeding structure is arranged on the base; and

[0008] An assembly structure comprises a clamping structure and a pressing structure, both of which are movably installed on the base. The clamping structure is used for placing the cell in the battery shell, and the pressing structure is used for pressing one end of the cell to enable the cell to be installed in place in the battery shell.

[0009] The clamping structure is correspondingly formed with a material taking station on the base, and the feeding structure is used for conveying the cell to the material taking station.

[0010] In an embodiment, the base is further provided with a mounting structure, and the clamping structure and the pressing structure are arranged on the mounting structure. The mounting structure is used for adjusting the horizontal position of the clamping structure and the pressing structure.

[0011] In an embodiment, the mounting structure comprises:

[0012] The frame structure comprises two first frame parts and a second frame part, the two first frame parts are arranged in parallel on the base on both sides of the feeding structure, the second frame part is arranged between the two first frame parts, and one end of the second frame part is slidably connected with one of the first frame parts; and

[0013] The driving member comprises a first driving member and a second driving member, the first driving member is installed on the other first frame part, and the output end of the first driving member is connected to the other end of the second frame part to drive the second frame part to move on the first frame part, and the second driving member is installed on the second frame part and connected to the clamping structure and the pressing structure to drive the clamping structure and the pressing structure to move on the second frame part.

[0014] In an embodiment, the first driving member and the second driving member are respectively provided as a first linear motor assembly and a second linear motor assembly, one end of the second frame part is installed on the output end slide table of the first linear motor, and the clamping structure and the pressing structure are both fixedly installed on the output end slide table of the second linear motor.

[0015] In an embodiment, the clamping structure comprises:

[0016] A first cylinder is installed on the output end slide table of the second linear motor, and a clamping mounting seat is fixedly connected to the output end of the first cylinder; and

[0017] The clamping device comprises a finger cylinder and two clamping jaw members, one end of the finger cylinder is installed on the clamping mounting seat, and two clamping jaw members are respectively installed on the two output ends of the finger cylinder, and two arc-shaped grooves corresponding to each other are arranged on the opposite ends of the two clamping jaw members.

[0018] In an embodiment, the pressing structure comprises:

[0019] A second cylinder is installed on the output end slide table of the second linear motor, a pressing head mounting seat is arranged on the output end of the second cylinder, and a sliding groove is arranged on the pressing head mounting seat; and

[0020] Two pressing heads, a threaded hole is arranged on the upward end of each of the two pressing heads, and the end of each of the two pressing heads provided with the threaded hole is installed on the sliding groove through a bolt, and a pressing needle is arranged on the downward end of each of the two pressing heads.

[0021] In an embodiment, the feeding structure comprises:

[0022] A third linear motor assembly is arranged on the base, and one end of the third linear motor assembly corresponds to the material taking station.

[0023] The tray structure is provided with a plurality of sunken holes, and the plurality of sunken holes are used for placing the battery cell.

[0024] The tray part is installed on the output end sliding table of the third linear motor assembly, and a baffle part is further arranged at the periphery of the tray part to limit the tray structure.

[0025] In an embodiment, the base is further provided with two support frames, and the two ends of the third linear motor assembly are respectively installed on the two support frames.

[0026] In an embodiment, the feeding structure is provided as at least two.

[0027] In an embodiment, the base is further provided with a visual positioning assembly, and the visual positioning assembly is used to acquire the position information of the lithium battery shell on the base.

[0028] In the technical scheme of the utility model, the corresponding feeding assembly and assembly structure are arranged to assemble the battery cell, in the assembly structure, the clamping structure and the pressing structure for installing the battery cell are integrated on the same installation structure, after the battery cell is placed in the battery shell, the end part of the battery cell is pressed by the pressing structure, the battery cell can be installed in place in the battery shell, the continuity is high in the whole assembly production process, the structures are compact, the production efficiency is ensured, and the production material is saved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.

[0030] Figure 1 It is an embodiment of the whole structure schematic view of the lithium battery cell assembly structure provided by the utility model;

[0031] Figure 2 It is an embodiment of the whole structure schematic view of the lithium battery cell assembly structure provided by the utility model; Figure 1 It is a partial structure enlarged schematic view of the lithium battery cell assembly structure provided by the utility model;

[0032] Figure 3 It is an embodiment of the whole structure schematic view of the lithium battery cell assembly structure provided by the utility model; Figure 2 It is a partial enlarged view of A in the utility model;

[0033] Figure 4 It is an embodiment of the whole structure schematic view of the lithium battery cell assembly structure provided by the utility model; Figure 3Structure diagram of middle and lower pressing head.

[0034] Explanation of reference numerals:

[0035] 100, lithium battery cell assembly structure; 1, base; 2, feeding structure; 21, third linear motor assembly; 22, tray structure; 221, sinking hole; 23, tray piece; 231, baffle part; 24, support frame; 3, assembly structure; 31, clamping structure; 311, first air cylinder; 3111, clamping mounting seat; 312, clamping device; 3121, finger air cylinder; 3122, clamping jaw piece; 3123, arc-shaped groove; 32, pressing structure; 321, second air cylinder; 3211, pressing head mounting seat; 3212, sliding groove; 322, pressing head; 3221, threaded hole; 3222, pressing needle; 4, mounting structure; 41, frame structure; 411, first frame part; 412, second frame part; 42, driving piece; 421, first linear motor assembly; 422, second linear motor assembly.

[0036] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B", including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0040] Cylindrical lithium battery is widely used in people's daily life in notebook computer, digital camera, lighting lamps and lanterns, toy products, electric tools, portable power source and other fields.

[0041] The composition structure of cylindrical lithium battery includes shell, battery cell, circuit board and end cover, etc., in the actual production process, the related elements need to be assembled in turn. Among them, the assembly of battery shell and battery cell is generally divided into two kinds, one is to install the battery cell and the shell manually, and the other is to assemble with the help of semi-automatic equipment. Due to the requirement of assembly gap between the shell inner cavity and the battery cell body, the above two ways have the problems of low production efficiency and the possibility of improper assembly of the battery cell.

[0042] The utility model provides a lithium battery cell assembly structure 100 for solving the above problems.

[0043] Please refer to Figures 1 to 4In an embodiment of the utility model, the cell assembling structure 3 of lithium battery mainly is used to the assembling of cylindrical lithium battery's shell and cell, generally speaking, the traditional installation mode is divided into two kinds, one is manual installation to cell and shell, another kind is to assemble with the help of semi -automatic equipment, these two kinds of production mode, all exist production efficiency is not high, and cell may assemble not in place problem. In the embodiment, for the above actual production process, possible problem, in the assembling structure 3, the clamping structure 31 of cell assembly is provided with the synchronous lower structure 32, in the actual production process, on the base 1, be equipped with feeding structure 2, through the feeding structure 2, cell material can be automatically transported to the material taking station, at this time, the clamping structure 31 will clamp the upper end of cell, then place the cell in the inner cavity of battery shell on the base 1, at this time, in order to install cell in shell in place, the lower structure 32 will press the upper end of cell, so that cell is installed in place in shell. In the process, it is necessary to know that the gap between battery shell and cell is limited, if only the cell is put into the shell opening end, sometimes the cell is very difficult to install in place on the inner wall of shell. The related structure in the embodiment can well solve the above problems. It can be thought that the feeding of battery shell is generally provided with carrier structure to fix it, in the actual installation process, the corresponding fixing structure is arranged on the assembling station on the base 1 to fix and install the related carrier.

[0044] The base 1 is provided with mounting structure 4, the mounting structure 4 is movable adjusting structure, the clamping structure 31 and the lower structure 32 are all installed on the mounting structure 4, when specifically assembling cell and shell, the clamping structure 31 and lower structure 32 can be moved on the horizontal plane by the mounting structure 4, so that the material taking position and material placing position of the clamping structure 31 in horizontal direction are adjusted in real time, similarly, the actual position of the lower structure 32 on the horizontal plane is also adjusted by the mounting structure 4.

[0045] Specifically, the mounting structure 4 comprises a frame structure 41 and a driving member 42, the frame structure 41 comprises two first frame parts 411 and a second frame part 412, when mounted, the two first frame parts 411 are arranged in parallel on the base 1 at the two sides of the feeding structure 2, and one end of the two first frame parts 411 corresponds to the assembly station. In the actual working process, the first driving member 42 mounted on one of the first frame parts 411 will drive the second frame part 412 to slide on the other first frame part 411, and the clamping structure 31 and the pressing structure 32 are both mounted on the output end of the second driving member 42, so when the first driving member 42 and the second driving member 42 work simultaneously, the clamping structure 31 and the pressing structure 32 can be driven to adjust the position in the horizontal plane.

[0046] In this embodiment, the first driving member 42 and the second driving member 42 are both provided as linear motor assemblies, the first linear motor assembly 421 is mounted on the first frame part 411, and the second linear motor assembly 422 is mounted on the second frame part 412. One end of the second frame part 412 is arranged on the output end slide table of the first linear motor assembly 421, and the clamping structure 31 and the pressing structure 32 are both mounted on the output end slide table of the second linear motor assembly 422. The clamping structure 31 and the pressing structure 32 are both integrated and mounted on the output end of the same driving structure, in the actual process of mounting the battery cell, after the clamping assembly places the battery cell in the shell, the first linear motor assembly 421 and the second linear motor assembly 422 only need to move a small stroke to make one end of the pressing structure 32 press the upward end of the battery cell, so that in the actual assembly process, the production rhythm of the battery cell and the shell can be effectively improved, on the other hand, mounting the clamping structure 31 and the pressing structure 32 on the same driving structure is also beneficial to the saving of production materials to a certain extent.

[0047] The clamping structure 31 specifically comprises a first air cylinder 311 and a clamping device 312, wherein the first air cylinder 311 is installed on the output end sliding table of the second linear motor, and specifically during the assembling of the battery cell, the first linear motor assembly 421 and the second linear motor assembly 422 first drive the first air cylinder 311 to the material taking station, at this time, the clamping mounting seat 3111 on the output end of the first air cylinder 311 drives the finger air cylinder 3121 to descend, at this time, the two clamping jaw pieces 3122 on the two output portions of the finger air cylinder 3121 are located on the two sides of the battery cell on the feeding structure 2, then the finger air cylinder 3121 acts to drive the two clamping jaw pieces 3122 to move towards each other at the same time, finally the battery cell is clamped between the two arc-shaped grooves 3123, then the first air cylinder 311, the first linear motor assembly 421 and the second linear motor assembly 422 simultaneously cooperate to transport the battery cell to the top of the battery shell on the base 1, at this time, the first air cylinder 311 and the finger air cylinder 3121 cooperate to place the battery cell in the inner cavity of the battery shell. It should be noted that in order to improve the assembling efficiency of the battery cell and the battery shell, the arc-shaped grooves 3123 on each clamping jaw piece 3122 are provided with at least two, and during the actual taking of the battery cell, at least two battery cells can be taken at a time.

[0048] The lower pressing structure 32 comprises a second cylinder 321 and two lower pressing heads 322. The second cylinder 321 is also installed on the output end slide table of the second linear motor assembly 422. When the battery cell is pressed and assembled, the first linear motor assembly 421 and the second linear motor assembly 422 drive the first cylinder 311 to the position directly above the battery cell in the battery shell, and then the second cylinder 321 drives the two lower pressing heads 322 to simultaneously descend to press the upper end of the two battery cells, so that the battery cell is installed in place in the battery shell. It should be noted that the upper end surface of the battery cell is generally provided with two electrode posts. In the process of pressing the battery cell, the two electrode posts are avoided to press and assemble the battery cell. Therefore, in the embodiment, a relatively small diameter pressing needle 3222 is arranged on the lower end of each of the two lower pressing heads 322. Before assembly, the positions of the two lower pressing heads 322 on the pressing head mounting seat 3211 are adjusted, so that the lower ends of the two pressing needles 3222 are respectively located in the middle positions of the two electrode posts on the two battery cells in the pressing process. Therefore, a sliding groove 3212 is arranged on the pressing head mounting seat 3211, and the upper end of each of the two lower pressing heads 322 is provided with a chamfer which can slide in the sliding groove 3212. After the position of the lower pressing head 322 is adjusted, a bolt is inserted into the threaded hole 3221 on the upper end of the lower pressing head 322 from above the sliding groove 3212, and the bolt is tightened to fix the position of the lower pressing head 322 on the pressing head mounting seat 3211.

[0049] The feeding structure 2 mainly comprises a third linear motor assembly 21, a tray structure 22 and a tray piece 23. When feeding, the battery cell is first placed in the sunken hole 221 to fill the tray structure 22, and then the entire tray structure 22 is placed on the tray piece 23. The tray piece 23 is provided with a baffle part 231 for positioning the tray structure 22. After the tray structure 22 is placed, the third linear motor assembly 21 drives the tray structure 22 to move to the material taking station, thereby reducing the movement stroke of the first linear motor assembly 421 and reducing the assembly time as much as possible.

[0050] In order to further improve the working efficiency of the feeding structure 2, at least two feeding structures 2 are provided in the embodiment. The two feeding structures 2 intermittently work to ensure that the material taking station always supplies battery cells. In addition, two supporting frames 24 are arranged on the ground, and the two third linear motor assemblies 21 are installed on the two supporting frames 24.

[0051] In addition, in order to further ensure that the battery cell can be accurately placed in the battery shell, a corresponding visual positioning assembly can be installed on the base 1, and the installation position of the battery cell is corrected in real time through the visual positioning assembly.

[0052] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the technical concept of the present application, and the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A lithium battery cell assembly structure for assembly of a cylindrical lithium battery's outer case and cell, characterized by, The utility model relates to a battery cell assembling device, which comprises: a base provided with an assembling station; a feeding structure provided on the base; and an assembling structure comprising a clamping structure and a pressing structure, both of which are movably installed on the base, the clamping structure is used for placing a battery cell in a battery shell, and the pressing structure is used for pressing one end of the battery cell to enable the battery cell to be installed in place in the battery shell. The clamping structure is correspondingly formed with a material taking station on the base, and the feeding structure is used for conveying the battery cell to the material taking station. The base is further provided with a mounting structure, and the clamping structure and the pressing structure are both provided on the mounting structure, which is used for adjusting the horizontal positions of the clamping structure and the pressing structure.

2. The lithium battery cell assembly structure of claim 1, wherein, The mounting structure comprises:

3. The lithium battery cell assembly structure of claim 2, wherein, a frame structure comprising two first frame parts and a second frame part, the two first frame parts are provided in parallel on the base and on both sides of the feeding structure, the second frame part is provided between the two first frame parts, and one end of the second frame part is slidably connected with one of the first frame parts; and a driving member comprising a first driving member and a second driving member, the first driving member is installed on the other first frame part, the output end of the first driving member is connected with the other end of the second frame part to drive the second frame part to move on the first frame part, and the second driving member is installed on the second frame part and connected with the clamping structure and the pressing structure to drive the clamping structure and the pressing structure to move on the second frame part. The first driving member and the second driving member are respectively a first linear motor assembly and a second linear motor assembly, one end of the second frame part is installed on the output end sliding table of the first linear motor, and the clamping structure and the pressing structure are both fixedly installed on the output end sliding table of the second linear motor.

4. The lithium battery cell assembly structure of claim 3, wherein, The clamping structure comprises:

5. The lithium battery cell assembly structure of claim 4, wherein, a first air cylinder installed on the output end sliding table of the second linear motor, a clamping mounting seat fixedly connected with the output end of the first air cylinder; and a gripping device comprising a finger air cylinder and two clamping jaw members, one end of the finger air cylinder is installed on the clamping mounting seat, the two clamping jaw members are respectively installed on the two output parts of the finger air cylinder, and the opposite ends of the two clamping jaw members are both provided with two mutually corresponding arc-shaped grooves. The pressing structure comprises:

6. The lithium battery cell assembly structure of claim 4, wherein, a second air cylinder installed on the output end sliding table of the second linear motor, a pressing head mounting seat provided on the output end of the second air cylinder, and a sliding groove provided on the pressing head mounting seat; and two pressing heads, the upward ends of the two pressing heads are both provided with threaded holes, and the ends provided with the threaded holes are both installed on the sliding groove through bolts, and the downward ends of the two pressing heads are both provided with pressing needles. The feeding structure comprises:

7. The lithium battery cell assembly structure of claim 2, wherein, a third linear motor assembly provided on the base and corresponding to the material taking station; a tray structure provided with a plurality of sunken holes for placing battery cells; and ​ A tray part is installed on the output end sliding table of the third linear motor assembly, and a baffle part is arranged around the tray part to limit the material tray structure.

8. The lithium battery cell assembly structure of claim 7, wherein, Two support frames are arranged on the base, and the two ends of the third linear motor assembly are respectively installed on the two support frames.

9. The lithium battery cell assembly structure of claim 7, wherein, The feeding structure is arranged as at least two.

10. The lithium battery cell assembly structure of claim 1, wherein, A visual positioning assembly is further arranged on the base, and the visual positioning assembly is used to acquire the position information of the lithium battery shell on the base.

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