CN114122485B - Battery cell assembling equipment and assembling method thereof - Google Patents
Battery cell assembling equipment and assembling method thereof Download PDFInfo
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- CN114122485B CN114122485B CN202111266509.7A CN202111266509A CN114122485B CN 114122485 B CN114122485 B CN 114122485B CN 202111266509 A CN202111266509 A CN 202111266509A CN 114122485 B CN114122485 B CN 114122485B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000012937 correction Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000011257 shell material Substances 0.000 claims 27
- 239000011162 core material Substances 0.000 abstract description 90
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000005452 bending Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 description 15
- 238000000429 assembly Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 9
- 125000006850 spacer group Chemical group 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The application relates to the technical field of battery production equipment, in particular to battery cell assembling equipment and an assembling method thereof. Through the material loading subassembly that is used for upset and material loading electric core that sets gradually along carousel subassembly direction of rotation, utmost point ear plastic subassembly, gasket installation component, utmost point ear flat-folded assembly, determine module and income shell subassembly, bear electric core and make the utmost point ear of electric core bottom toward the shaping that inclines outward through carousel subassembly, realize accomplishing the utmost point ear of electric core bottom toward the outer slope when electric core material loading promptly, utmost point ear plastic subassembly is used for the utmost point ear at electric core top towards the periphery slope plastic, take place to interfere when then realizing avoiding follow-up equipment gasket through the utmost point ear plastic of the both ends face of electric core respectively and cause utmost point ear bending or gasket assembly not in place, guarantee assembly quality. The automatic assembly of the cylindrical battery core is realized through the integrated equipment for assembly detection, the automation degree is high, the efficiency is high, the automatic assembly device is suitable for a high-yield production mode, the assembly quality is improved, and the quality of the battery is ensured.
Description
Technical Field
The application relates to the technical field of battery production equipment, in particular to battery cell assembling equipment and an assembling method thereof.
Background
With the rapid development of the battery field, the types of batteries, such as cylindrical batteries and square batteries, are increasing to meet different use requirements in industrial production or daily life. In the existing assembling process of the cylindrical battery, most of the existing assembling modes adopt manual operation of workers or semi-automatic shell entering equipment, the mode has high labor cost and low production efficiency, the automation degree is low, the mode is not suitable for an efficient production mode, the assembling quality is difficult to guarantee, and the quality of the battery is influenced.
Simultaneously to the equipment of cylinder battery, need all pack into insulating spacer at the both ends face of cylinder electricity core, because cylinder electricity core utmost point ear extends outward from the electricity core terminal surface, cause insulating spacer and utmost point ear to take place to interfere easily when packing into insulating spacer, lead to insulating spacer to pack into and be obstructed, insulating spacer installs not in place, and cause utmost point ear bending easily, seriously influence full-automatic production efficiency, for this reason often need arrange the manual work to detect and correct in this process of current production, the efficiency of greatly reduced production, be unfavorable for full-automatic high-efficient production, and there is the quality hidden danger in the equipment of electricity core.
Disclosure of Invention
In order to solve the technical problems, the application provides a battery cell assembling device and an assembling method thereof, which are used for assembling a cylindrical battery cell with a central hole, and comprise a turntable assembly, a feeding assembly and a tab shaping assembly, wherein the turntable assembly is used for conveying the battery cell and shaping tabs of the battery cell; a gasket mounting assembly to mount the gasket within the electrical core; the battery comprises a battery core, a tab folding and flattening assembly and a detection assembly, wherein the tab folding and flattening assembly is used for folding and flattening a tab along the end surface of the battery; and the shell entering assembly is used for loading the shell and loading the battery cell into the shell from the bottom. The automatic assembly of the cylindrical battery core is realized through the integrated equipment for assembly detection, the automation degree is high, the efficiency is high, the automatic assembly device is suitable for a high-yield production mode, the assembly quality is improved, and the quality of the battery is ensured.
Preferably, the turntable assembly comprises a turntable which is rotatably arranged and a plurality of groups of bearing assemblies which are used for clamping the battery cell, the bearing assemblies are uniformly distributed on the circumference of the turntable, and a guide frame which is used for driving the bearing assemblies to clamp or loosen the battery cell is arranged on the periphery of the turntable. Order about bearing assembly through the leading truck and open, bearing assembly is put into with electric core vertically to the material loading subassembly, and when bearing assembly on the carousel rotated other subassemblies on, bearing assembly broke away from the leading truck, and then realized that bearing assembly presss from both sides tight electric core.
Preferably, the bearing component comprises a fixed plate arranged on the turntable, a clamping jaw arranged on the fixed plate, and a movable plate arranged at the periphery of the clamping jaw in a sleeved mode, the movable plate is arranged on the fixed plate to slide up and down so as to clamp or loosen the battery cell by the clamping jaw, an arbor wheel is arranged on the movable plate, and a guide groove for the arbor wheel to move is formed in the guide frame. When the arbor wheel moves to the highest point of the guide groove, the arbor wheel drives the movable plate to ascend and slide on the fixed plate, the clamping jaws are opened outwards, when the arbor wheel moves downwards along the guide groove, the arbor wheel drives the movable plate to descend and slide on the fixed plate, the movable plate is sleeved on the peripheries of the clamping jaws, and the clamping jaws are enabled to compress the battery cell inwards.
Preferably, clamping jaw bottom is provided with bears electric core and hollow annular brace table, the brace table middle part is provided with and is used for the toper piece of electric core bottom utmost point ear toward the slope of the electric core outside. When electric core was placed on annular brace table, the utmost point ear of electric core bottom was owing to contact in the toper piece, and then made utmost point ear pull open to the periphery through the toper piece. And then the phenomenon that the electrode lug is bent or the gasket is not assembled in place due to interference in the subsequent assembling of the gasket is avoided, and the assembling quality is ensured.
Preferably, the tab reshaping component comprises a tab correcting component and a tab clamping component; the tab clamping assembly comprises a clamping block, a first driving assembly and a lifting driving assembly, wherein the first driving assembly drives the clamping block to clamp a tab at the top of the battery cell, and the lifting driving assembly drives the clamping block to lift so as to straighten the tab; the clamping surface of the clamping block is provided with an inclined surface which enables the lug to incline towards the periphery of the battery cell. And then realize leaning out the plastic with the pole piece of electric core, take place to interfere when then realizing avoiding follow-up equipment gasket and cause utmost point ear bending or gasket assembly not in place through the utmost point ear plastic to the both ends face of electric core respectively, guarantee assembly quality.
Preferably, the tab correcting assembly is provided with at least two groups, and the tab correcting assembly comprises a detection module for detecting the position of a tab, a roller abutted to the peripheral surface of the battery core, a rotary driving assembly for driving the roller to rotate, and a second driving assembly for adjusting the position of the roller. Rotate through the rotation of rotation drive assembly drive gyro wheel and drive electric core and rotate, and then adjust electric core to the exact position for adjust the utmost point ear position of electric core.
Preferably, the tab folding and flattening assembly comprises a pushing block, a pressing block, a third driving assembly and a fourth driving assembly, wherein the pushing block and the pressing block are arranged oppositely, the third driving assembly is used for driving the pushing block to fold and flatten the tab, and the fourth driving assembly is used for driving the pressing block to press the battery core. When the carousel removed electric core to utmost point ear book flat subassembly, fourth drive assembly drive compact heap compresses tightly electric core, and rethread third drive assembly drive promotes the piece and removes along the terminal surface of electric core, and then with utmost point ear book flat in the terminal surface of electric core.
Preferably, the shell entering assembly comprises a shell feeding assembly for feeding the shell and a shell assembling assembly. The shell assembly component is provided with a shell clamping station connected with the shell feeding component, a shell entering station connected with the electric core of the rotary disc component, a shell overturning station and a discharging station connected with the discharging component.
Preferably, the shell assembly component comprises a second turntable, a plurality of clamping jigs used for grabbing the shell are arranged on the circumference of the second turntable, a jacking component for jacking the battery core of the turntable component into the shell is arranged on the battery core shell entering station, and a turnover component for turning over the shell is arranged on the shell turning station. When the centre gripping tool that snatchs to have the shell removed electric core income shell station, the jacking subassembly that is located the below was with carousel subassembly's electric core jacking, and electric core is packed into from the opening face of shell bottom, shifts to shell upset station again, overturns 180 with the shell.
Preferably, the clamping jig is pivoted with a supporting block, and a supporting part which extends to the bottom of the shell and is used for supporting the battery cell after entering the shell is formed at the bottom of the supporting block. Support the electric core after living into the shell through supporting to the portion, prevent that electric core from dropping.
Preferably, the feeding assembly comprises a movable sliding table, a plurality of groups of trays arranged on the movable sliding table in a sliding manner, a fourth driving assembly used for driving the trays to ascend and descend, and a transferring assembly used for turning over the battery cells and feeding the battery cells to the rotary table assembly.
An assembly method based on the battery cell assembly equipment includes the following steps:
s1, conveying a horizontal battery cell by a feeding assembly, turning the battery cell to be vertical, feeding the battery cell to a turntable assembly, and carrying the battery cell by the turntable assembly and enabling a lug at the bottom of the battery cell to incline outwards for shaping;
s2, the rotary disc assembly transfers the battery cell to a lug shaping assembly, the lug shaping assembly detects a lug and adjusts the position of the battery cell, and the lug shaping assembly clamps the lug on the top of the battery cell and inclines outwards for shaping;
s3, the cell is transferred to a gasket mounting assembly by the turntable assembly, and the gasket is mounted in the cell by the gasket mounting assembly;
s4, the rotary disc assembly transfers the battery cell to a tab folding and flattening assembly and a detection assembly, the tab folding and flattening assembly folds and flattens a tab at the top of the battery cell along the end face of the battery, the detection assembly detects whether a gasket is assembled in place or not, and detects whether the folded and flattened tab covers a center hole of the battery cell or not;
s5, the rotary disc assembly transfers the battery cell to a shell feeding assembly, the shell feeding assembly feeds the battery cell into the shell from the bottom of the shell, and the shell after the battery cell is fed into the shell feeding assembly is turned over by 180 degrees.
Compared with the prior art, the beneficial effects of this application are: this application is through the material loading subassembly that is used for upset and material loading electric core that sets gradually along carousel subassembly direction of rotation, utmost point ear plastic subassembly, gasket installation component, utmost point ear flat-folded assembly, the detection subassembly with go into the shell subassembly, bear electric core and make the utmost point ear of electric core bottom toward the shaping that inclines outward through carousel subassembly, realize accomplishing the utmost point ear of electric core bottom toward the slope outward when electric core material loading promptly, utmost point ear plastic subassembly is used for detecting utmost point ear and adjusts electric core position, and with the utmost point ear at electric core top towards the periphery slope plastic, through respectively to the utmost point ear plastic of the both ends face of electric core and then take place to interfere when avoiding follow-up equipment gasket and cause utmost point ear bending or gasket assembly not in place, guarantee assembly quality. Gasket installation component is with gasket dress back in the electric core, it is flat with utmost point ear along the battery terminal surface book through utmost point ear book flat subassembly, detection component is used for detecting gasket assembled position and detects utmost point ear and cover in the centre bore of electric core, guarantee that follow-up welding process welds smoothly, go into in the shell subassembly is used for the material loading shell and packs into the shell with electric core from the bottom of shell, realize automatic equipment cylinder electricity core through the integrative equipment that the equipment detected, degree of automation is high, be not suitable for efficient production mode, and improve assembly quality, guarantee the quality of battery.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It should be apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic view of an overall structure of a battery cell assembly apparatus according to an embodiment of the present application;
fig. 2 is a schematic view of a turntable assembly of the battery cell assembling apparatus according to the embodiment of the present application;
fig. 3 is a schematic view of a bearing assembly of the battery cell assembling apparatus according to the embodiment of the present application;
fig. 4 is a schematic structural view of a clamping jaw of the battery cell assembling device according to the embodiment of the present application;
fig. 5 is a schematic view of a feeding assembly of the battery cell assembly apparatus according to the embodiment of the present application;
fig. 6 is a schematic diagram of a cell folding and flattening assembly of the cell assembling apparatus according to the embodiment of the present application;
fig. 7 is a schematic view of a tab correction assembly of the battery cell assembly apparatus according to the embodiment of the present application;
fig. 8 is a schematic view of a tab clamping assembly of the battery cell assembly apparatus according to the embodiment of the present application;
fig. 9 is a schematic diagram of a case entering assembly of the battery cell assembling apparatus according to the embodiment of the present application;
fig. 10 is a schematic view of a cell assembly apparatus clamping jig according to an embodiment of the present application.
Reference numerals
10. A turntable assembly; 11. a turntable; 12. a load bearing assembly; 121. a shaft wheel; 122. a clamping jaw; 123. a movable plate; 124. a fixing plate; 125. a conical block; 126. a support table; 13. a guide frame; 131. a guide groove; 20. a feeding assembly; 21. moving the sliding table; 22. a tray; 23. a fourth drive assembly; 30. a tab reshaping component; 31. a tab correction assembly; 311. a detection module; 312. a roller; 313. a rotary drive assembly; 32. a tab clamping assembly; 321. a clamping block; 322. a clamping cylinder; 323. an inclined surface; 324. a lift drive assembly; 40. a gasket mounting assembly; 50. a tab folding and flattening assembly; 51. a pushing block; 52. a third drive assembly; 53. a compression block; 54. a fourth drive assembly; 60. a detection component; 70. a housing-entering component; 71. a housing loading assembly; 72. a housing assembly component; 721. a second turntable; 722. a battery cell shell entering station; 723. a housing assembly component; 724. a shell overturning station; 725. a blanking station; 726. a turnover assembly; 727. clamping the jig; 728. a support block; 729. an abutting portion; 80. and a blanking assembly.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that all the directional indicators in the embodiments of the present application, such as up, down, left, right, front, and back, 8230, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in this application are for descriptive purposes only, not specifically referring to the order or sequence, nor are they intended to limit the application, but merely to distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
For a further understanding of the invention, its features and effects, reference is made to the following examples, which are set forth in detail in conjunction with the accompanying drawings:
in order to solve the above technical problem, this embodiment provides a battery cell assembling apparatus, which is used for assembling a cylindrical battery cell with a central hole, tabs extend from two end surfaces of the cylindrical battery cell respectively, as shown in fig. 1, the apparatus includes a turntable assembly 10 for conveying the battery cell and shaping the tabs of the battery cell, a feeding assembly 20 for turning over and feeding the battery cell, which is sequentially arranged along a rotation direction of the turntable assembly 10, a tab shaping assembly 30, a gasket mounting assembly 40, a tab folding and flattening assembly 50, a detection assembly 60, and an encasing assembly 70, the battery cell in a horizontal state is conveyed by the feeding assembly 20, and the battery cell is turned over to a vertical state and is fed to the turntable assembly 10, at this time, the battery cell is supported by the turntable assembly 10, and the tabs at the bottom of the battery cell are tilted outward, so that the tabs at the bottom of the battery cell are tilted outward when the battery cell is fed, the tab shaping assembly 30 is used for detecting the tabs and adjusting the position of the battery cell, and the tabs at the top of the battery cell are tilted and are shaped toward the periphery, and the tabs at two end surfaces of the battery cell are respectively shaped to further avoid interference with the subsequent gaskets during assembling, and the assembling quality of the tabs or the tabs is guaranteed. Gasket installation component 40 is back in the electric core with the gasket, it is flat along the battery terminal surface with utmost point ear through utmost point ear flat-bending component 50, determine module 60, be used for detecting gasket mounted position and determine whether the utmost point ear covers in the centre bore of electric core, guarantee that follow-up welding process welds smoothly, go into shell subassembly 70 and be used for the material loading shell and with electric core from the bottom of shell pack into in the shell, the integrative equipment through the equipment that equipment detected realizes automatic assembly cylinder electricity core, degree of automation is high-efficient, be applicable to high-yield production mode, and improve the assembly quality, guarantee the quality of battery.
As shown in fig. 5, the feeding assembly 20 includes a moving sliding table 21, a plurality of groups of trays 22 slidably disposed on the moving sliding table 21, and a fourth driving assembly 23 for driving the trays 22 to ascend and descend, and further includes a transferring assembly for turning over and feeding the cells to the turntable assembly 10. And then, the cells in the horizontal state are conveyed through the feeding assembly 20, turned by 90 degrees to be in the vertical state and fed to the turntable assembly 10.
Specifically, as shown in fig. 2, the turntable assembly 10 includes a turntable 11 capable of rotating, and a plurality of groups of bearing assemblies 12 for clamping the battery cell, the bearing assemblies 12 are uniformly distributed on the circumference of the turntable 11, the battery cell is transferred to each assembly for production through rotation of the turntable 11, a guide frame 13 for driving the bearing assemblies 12 to clamp or loosen the battery cell is arranged at a position located at the periphery of the turntable 11 and connected with the loading assembly 20, when the bearing assemblies 12 on the turntable 11 are rotated to the loading assembly 20, the bearing assemblies 12 are driven to be opened through the guide frame 13, the loading assembly 20 vertically places the battery cell into the bearing assemblies 12, and when the bearing assemblies 12 on the turntable 11 are rotated to other assemblies, the bearing assemblies 12 are separated from the guide frame 13, and the battery cell is clamped by the bearing assemblies 12.
Further, as shown in fig. 3, the bearing assembly 12 includes a fixing plate 124 disposed on the turntable 11, a clamping jaw 122 disposed on the fixing plate 124, and a movable plate 123 sleeved on the periphery of the clamping jaw 122, the movable plate 123 can slide up and down on the fixing plate 124 to enable the clamping jaw 122 to clamp or loosen the battery cell, the clamping jaw 122 is circular, so as to play a role in shaping the battery cell when clamping the battery cell, and improve the roundness of the battery cell. The outer diameter of the clamping jaw 122 is small at the top and large at the bottom, the arbor 121 is arranged on the movable plate 123, the guide frame 13 is formed with a guide groove 131 for the arbor 121 to move, the guide groove 131 is in an arch arc shape, when the bearing assembly 12 on the turntable 11 rotates to the feeding assembly 20, the arbor 121 on the movable plate 123 rolls along the guide groove 131 of the guide frame 13, when the arbor 121 moves to the highest point of the guide groove 131, the arbor 121 drives the movable plate 123 to ascend and slide on the fixed plate 124, at this time, because the outer diameter of the top of the clamping jaw 122 is small at the top and large at the bottom, the movable plate 123 is separated from the top of the clamping jaw 122, and further the clamping jaw 122 opens outwards, the feeding assembly 20 places the battery cell into the clamping jaw 122, when the arbor 121 moves downwards along the guide groove 131, the arbor 121 drives the movable plate 123 to descend and slide on the fixed plate 124, and the periphery of the clamping jaw 123 is sleeved on the periphery of the clamping jaw 122, so that the clamping jaw 122 compresses the battery cell inwards.
In order to shape the tab at the bottom of the battery cell by the turntable assembly 10 during loading, as shown in fig. 4, a hollow annular supporting platform 126 for supporting the battery cell is disposed at the bottom of the clamping jaw 122, and a tapered block 125 for inclining the tab at the bottom of the battery cell toward the outside of the battery cell is disposed in the hollow supporting platform 126. When the battery cell is placed on the annular support platform 126, the tab at the bottom of the battery cell is in contact with the tapered block 125, and then the tab is pulled open towards the periphery through the tapered block 125. And then the phenomenon that the electrode lug is bent or the gasket is not assembled in place due to interference in the subsequent assembling of the gasket is avoided, and the assembling quality is ensured.
After the battery cell is fed to the turntable assembly 10, the turntable assembly 10 transfers the battery cell to the tab shaping assembly 30, and the tab shaping assembly 30 comprises a tab correction assembly 31 and a tab clamping assembly 32; as shown in fig. 7, at least two sets of tab correction assemblies 31 are provided, and tabs on the top of the battery cell are sequentially detected through the two sets of tab correction assemblies 31, positive and negative polarities of the tabs are detected, and positions of the tabs are detected and adjusted. Further, the tab correction assembly 31 includes a detection module 311 for detecting the tab position, a roller 312 abutted to the circumferential surface of the battery cell, a rotation driving assembly 313 for driving the roller 312 to rotate, and a second driving assembly 314 for adjusting the position of the roller 312, the battery cell is driven to rotate by the rotation driving assembly 313 to drive the battery cell to rotate, so that the battery cell is adjusted to a correct position, the tab position of the battery cell is adjusted, and the rotation driving assembly 313 stops rotating after the detection module 311 detects the tab in place. The roller 312 is driven to ascend and descend by the second driving assembly 314, so that the position of the adjusting roller 312 abutted to the battery cell is realized, wherein the rotary driving assembly 313 is of a motor and synchronous belt transmission structure, and the second driving assembly 314 is of a cam pull rod transmission structure.
Further, as shown in fig. 8, the tab clamping assembly 32 includes a clamping block 321, a first driving assembly for driving the clamping block 321 to clamp the tab on the top of the battery cell, and a lifting driving assembly 324 for driving the clamping block 321 to lift and lower to straighten the tab, wherein an inclined plane 323 for inclining the tab toward the periphery of the battery cell is formed on a clamping surface of the clamping block 321. Lift drive assembly 324 is cam pull rod transmission structure, and clamp splice 321 realizes the centre gripping action through clamping cylinder 322, through the inclined plane 323 centre gripping utmost point ear of clamp splice 321, rethread lift drive assembly 324 drive clamp splice 321 goes up and down, and then realizes leaning out the plastic with the pole piece of electric core, takes place to interfere when then realizing avoiding follow-up equipment gasket through the utmost point ear plastic of the both ends face of electric core respectively and causes utmost point ear bending or gasket assembly not in place, guarantees the assembly quality.
Further, the battery core is transferred to the gasket mounting assembly 40, and the insulating gasket is installed in the battery core, wherein the gasket mounting assembly 40 comprises an automatic punching assembly for punching and forming the gasket and a feeding manipulator for feeding the punched and formed gasket into the battery core, so that the gasket is automatically assembled into the battery core. Further, after the gasket is completely loaded, the tab folding and flattening assembly 50 folds the tabs along the end surface of the battery core, and for this purpose, as shown in fig. 6, the tab folding and flattening assembly 50 includes a push block 51 and a pressing block 53 for pressing the battery core, which are oppositely disposed, and a third driving assembly 52 for driving the push block 51 to fold and flatten the tabs and a fourth driving assembly 54 for driving the pressing block 53 to press the battery core. When the turntable 11 moves the battery cell to the tab folding and flattening assembly 50, the fourth driving assembly 54 drives the compressing block 53 to compress the battery cell, and then the third driving assembly 52 drives the pushing block 51 to move along the end surface of the battery cell, so as to fold the tab to be flat on the end surface of the battery cell, wherein the third driving assembly 52 and the fourth driving assembly 54 are in a cam structure. Further, the assembling position of the gasket is detected through the detection assembly 60, the gasket is ensured to be installed in place, whether the lug covers the center hole of the battery cell is detected, and the battery cell is conveniently welded by extending into the center hole in the follow-up process.
Further, the cells are transferred to a case entering assembly 70, as shown in fig. 9, the case entering assembly 70 includes a case loading assembly 71 for loading the case, and a case assembling assembly 72. The downward end of the housing is an open surface, the upward end of the housing is a closed surface, and the housing assembly component 72 is provided with a housing clamping station 723 joined to the housing feeding component 71, a battery cell housing station 722 joined to the turntable assembly 10, a housing turning station 724, and a blanking station connected to the blanking component 80. The shell clamping station 723 of the shell assembly component 72 grabs the shell on the shell feeding component 71, the shell is transferred to the cell entering station 722, the cell is loaded from the opening face at the bottom of the shell, the shell is transferred to the shell overturning station 724, the shell is overturned 180, the lug at the bottom of the cell is overturned upwards, the blanking component 80 on the blanking station is used for blanking and transferring to the next station, the gasket is loaded at one end of the cell after overturning at the next station, and the gasket is stretched into the center hole through the welding machine to perform the welding process.
Further, the casing assembly component 72 includes a second turntable 721, a plurality of clamping jigs 727 for grabbing the casing are arranged on the circumference of the second turntable 721, a jacking component for jacking the electric core of the turntable component 10 into the casing is arranged at the electric core casing station, and a turnover component 726 for turning over the casing is arranged at the casing turnover station 724. The electric core of carousel subassembly 10 changes to the position that links up with shell subassembly 72, and when the centre gripping tool 727 that snatchs the shell moved electric core income shell station this moment, the jacking subassembly that is located the below was packed into the electric core jacking of carousel subassembly 10, and electric core is followed the opening face of shell bottom and is gone into, shifts to shell upset station 724 again, overturns 180 with the shell.
After the battery cell is loaded from the opening surface at the bottom of the shell, as shown in fig. 10, in order to prevent the battery cell from falling from the bottom of the shell in the process of transferring to the shell turning station 724, a supporting block 728 is pivoted on the clamping jig 727, a supporting part 729 which extends to the bottom of the shell and is used for supporting the battery cell after entering the shell is formed at the bottom of the supporting block 728, the supporting block 728 is propped open after the jacking assembly is jacked, when the jacking assembly descends, the supporting block 728 rotates, then the propping part 729 at the bottom of the supporting block 728 extends to the bottom of the shell, and then the battery cell after entering the shell is propped up by the propping part 729, so that the battery cell is prevented from falling.
In order to realize efficient assembly of the cylindrical battery cell, the embodiment further provides an assembly method, where the battery cell assembly apparatus includes the following steps:
s1, a feeding assembly 20 conveys a horizontal battery cell, turns the battery cell vertically, feeds the battery cell to a turntable assembly 10, and the turntable assembly 10 bears the battery cell and enables a lug at the bottom of the battery cell to incline outwards for shaping;
the battery core in the horizontal state is conveyed by the feeding assembly 20, the battery core is turned over by 90 degrees to be in a vertical state and is fed to the turntable assembly 10, and when the battery core is placed on the annular support table 126, the tabs at the bottom of the battery core are in contact with the conical block 125, and further the tabs are pulled open to the periphery through the conical block 125.
S2, the battery cell is transferred to a lug shaping assembly 30 by the rotary disc assembly 10, the lug shaping assembly 30 detects a lug and adjusts the position of the battery cell, and the lug shaping assembly 30 clamps the lug on the top of the battery cell and inclines outwards for shaping;
utmost point ear plastic subassembly 30 includes utmost point ear correction subassembly 31 and utmost point ear centre gripping subassembly 32, correct subassembly 31 through two sets of utmost point ears and detect the utmost point ear at electric core top in proper order, detect the positive and negative of utmost point ear positive and negative, and detect and adjust utmost point ear's position, the inclined plane 323 centre gripping utmost point ear of utmost point ear centre gripping subassembly 32 clamp splice 321, rethread lift drive subassembly 324 drive clamp splice 321 goes up and down, and then the realization leans out the plastic with the pole piece of electric core, take place to interfere when further realizing avoiding follow-up equipment gasket through the utmost point ear plastic of the both ends face of electric core respectively and cause the crooked or gasket assembly of utmost point ear not in place, guarantee assembly quality.
S3, the cell is transferred to a gasket mounting assembly 40 by the turntable assembly 10, and the gasket is mounted in the cell by the gasket mounting assembly 40;
s4, the battery cell is transferred to the lug flattening assembly 50 and the detection assembly 60 by the rotary disc assembly 10, the lug flattening assembly 50 flattens the lug on the top of the battery cell along the end face of the battery, the detection assembly 60 detects whether the gasket is assembled in place, and detects whether the flattened lug covers the center hole of the battery cell;
after the gasket is fed, the tab folding and flattening assembly 50 folds the tabs along the end face of the battery cell, the assembly position of the gasket is detected through the detection assembly 60, the gasket is ensured to be installed in place, and whether the tabs cover the center hole of the battery cell is detected, so that the battery cell can be conveniently welded by stretching into the center hole in the follow-up process.
S5, carousel subassembly 10 shifts the battery cell to income shell subassembly 70, goes into shell subassembly 70 material loading shell to in the shell is packed into to the battery cell from the bottom of shell, go into shell subassembly 70 and will pack into the shell upset 180 behind the battery cell.
The shell clamping station 723 of the shell assembly component 72 grabs the shell on the shell feeding component 71 and then transfers the shell to the cell entering station 722, at this time, when the clamping jig 727 which grabs the shell moves to the cell entering station, the jacking component located below jacks up the cell of the turntable component 10, the cell is loaded from the opening surface at the bottom of the shell and then transfers to the shell overturning station 724, and the shell is overturned 180.
To sum up, in one or more embodiments of this application, this application scheme is through the material loading subassembly that is used for upset and material loading electric core that sets gradually along carousel subassembly direction of rotation, utmost point ear plastic subassembly, gasket installation component, utmost point ear flat-folded assembly, the detection subassembly with go into the shell subassembly, bear electric core and make the utmost point ear of electric core bottom toward the shaping that inclines outward through carousel subassembly, realize accomplishing the utmost point ear of electric core bottom toward the slope outward when electric core material loading promptly, utmost point ear plastic subassembly is used for detecting utmost point ear and adjusts electric core position, and incline the plastic with the utmost point ear at electric core top towards the periphery, take place to interfere when then realizing avoiding follow-up equipment gasket through the utmost point ear plastic to the both ends face of electric core respectively and cause utmost point ear bending or gasket assembly not in place, guarantee assembly quality. Gasket installation component is with gasket dress back in the electric core, it is flat along the battery terminal surface with utmost point ear through the flat subassembly of utmost point ear book, detection component is used for detecting gasket assembled position and detects whether utmost point ear covers in the centre bore of electric core, guarantee that follow-up welding process welds smoothly, go into in the shell subassembly is used for the material loading shell and packs into the shell with electric core from the bottom of shell, realize automatic equipment cylinder electricity core through the integrative equipment that the equipment detected, degree of automation is high efficiency, be applicable to high output's production mode, and improve the assembly quality, guarantee the quality of battery.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (12)
1. The utility model provides a battery cell equipment for the equipment is formed with the cylinder electricity core of centre bore, its characterized in that: comprises a turntable component (10) which is used for conveying the battery core and shaping the lug of the battery core, a feeding component (20) which is arranged in sequence along the rotation direction of the turntable component (10) and is used for turning over and feeding the battery core, and
the lug reshaping component (30) is used for detecting a lug, adjusting the position of the battery cell and reshaping the lug towards the periphery of the battery cell;
a gasket mounting assembly (40) for mounting the gasket within the electrical core;
the tab flattening assembly (50) is used for flattening the tabs along the end face of the battery;
the detection assembly (60) is used for detecting the assembling position of the gasket and detecting whether the lug covers the central hole of the battery core;
the shell entering assembly (70) is used for loading the shell and loading the battery core into the shell from the bottom;
carousel subassembly (10) is including rotatable carousel (11) that sets up and a plurality of groups are used for bearing component (12) of centre gripping electric core, is located carousel (11) periphery is provided with and is used for ordering about bearing component (12) centre gripping or unclamp deflector (13) of electric core, bearing component (12) including set up in fixed plate (124) on carousel (11), set up in clamping jaw (122) on fixed plate (124) and cover are established fly leaf (123) of clamping jaw (122) periphery, fly leaf (123) in fixed plate (124) rise and fall the slip in order to make clamping jaw (122) centre gripping or unclamp electric core, clamping jaw (122) bottom is provided with bears electric core and hollow annular brace table (126), it is used for supporting bench bottom utmost point ear toward electric core outside tapered block (125) of inclining to be provided with brace table (126) middle part.
2. The battery cell assembly apparatus according to claim 1, wherein: the bearing components (12) are uniformly distributed on the circumference of the rotary disc (11).
3. The cell assembly apparatus of claim 2, wherein: a shaft wheel (121) is arranged on the movable plate (123), and a guide groove (131) for the shaft wheel (121) to move is formed in the guide frame (13).
4. The cell assembly apparatus of claim 3, wherein: the guide groove (131) is arched like an arch.
5. The cell assembly apparatus of claim 1, wherein: the tab reshaping component (30) comprises a tab correcting component (31) and a tab clamping component (32); the tab clamping assembly (32) comprises a clamping block (321), a first driving assembly for driving the clamping block (321) to clamp a tab at the top of the battery cell, and a lifting driving assembly (324) for driving the clamping block (321) to lift so as to straighten the tab; the clamping surface of the clamping block (321) is provided with an inclined surface (323) which enables the lug to incline towards the periphery of the battery cell.
6. The cell assembly apparatus of claim 5, wherein: the tab correction assembly (31) is at least provided with two groups, and the tab correction assembly (31) comprises a detection module (311) for detecting the position of a tab, a roller (312) abutted to the peripheral surface of the battery core, a rotary driving assembly (313) for driving the roller (312) to rotate and a second driving assembly (314) for adjusting the position of the roller (312).
7. The cell assembly apparatus of claim 1, wherein: the tab folding and flattening assembly (50) comprises a pushing block (51), a pressing block (53) used for pressing the battery cell, a third driving assembly (52) driving the pushing block (51) to fold and flatten the tab and a fourth driving assembly (54) driving the pressing block (53) to press the battery cell.
8. The cell assembly apparatus of claim 1, wherein: go into shell subassembly (70) including shell material loading subassembly (71) and shell equipment subassembly (72) that are used for the material loading shell, shell equipment subassembly (72) are provided with link up in shell centre gripping station (723) of shell material loading subassembly (71), link up in shell station (722), shell upset station (724) and unloading station (725) that are connected with unloading subassembly (80) are gone into to the electric core of carousel subassembly (10).
9. The cell assembly apparatus of claim 8, wherein: the shell assembly component (72) comprises a second rotary table (721), a plurality of clamping jigs (727) used for grabbing the shell are arranged on the circumference of the second rotary table (721), a jacking component used for jacking the battery cell of the rotary table component (10) into the shell is arranged at the battery cell shell entering station, and a turnover component (726) used for turning over the shell is arranged at the shell turnover station (724).
10. The cell assembly apparatus of claim 9, wherein: the clamping jig (727) is pivoted with a supporting block (728), and a supporting part (729) which extends to the bottom of the shell and is used for supporting the battery cell after entering the shell is formed at the bottom of the supporting block (728).
11. The battery cell assembly apparatus according to claim 1, wherein: the feeding assembly (20) comprises a moving sliding table (21), a plurality of groups of trays (22) arranged on the moving sliding table (21) in a sliding mode, a fourth driving assembly (23) used for driving the trays (22) to ascend and descend, and a transfer assembly used for overturning the battery cells and feeding the battery cells to the turntable assembly (10).
12. A method of assembly, characterized by: the cell assembly apparatus according to any of claims 1 to 11, comprising:
s1, conveying a horizontal battery cell by the feeding assembly (20), turning the battery cell to be vertical, feeding the battery cell to the turntable assembly (10), wherein the turntable assembly (10) bears the battery cell and enables a lug at the bottom of the battery cell to incline outwards for shaping;
s2, the rotary disc assembly (10) transfers the battery cell to a tab shaping assembly (30), the tab shaping assembly (30) detects a tab and adjusts the position of the battery cell, and the tab shaping assembly (30) clamps the tab at the top of the battery cell and inclines outwards for shaping;
s3, the turntable assembly (10) transfers the battery cell to a gasket mounting assembly (40), and the gasket mounting assembly (40) inserts the gasket into the battery cell;
s4, the rotary disc assembly (10) transfers the battery cell to a tab folding and flattening assembly (50) and a detection assembly (60), the tab folding and flattening assembly (50) folds and flattens a tab at the top of the battery cell along the end face of the battery, the detection assembly (60) detects whether a gasket is assembled in place or not, and detects whether the folded and flattened tab covers a center hole of the battery cell or not;
s5, the battery cell is transferred to a shell entering assembly (70) through the rotary disc assembly (10), the shell is loaded through the shell entering assembly (70), the battery cell is loaded into the shell from the bottom of the shell, and the shell after being loaded into the battery cell is turned over by 180 degrees through the shell entering assembly (70).
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114695947B (en) * | 2022-03-22 | 2024-08-30 | 广东南大机器人有限公司 | Battery core shell-entering machine |
| WO2023207239A1 (en) * | 2022-04-27 | 2023-11-02 | 无锡先导智能装备股份有限公司 | Welding apparatus |
| CN115483449A (en) * | 2022-07-04 | 2022-12-16 | 深圳市海目星激光智能装备股份有限公司 | Electricity core goes into shell equipment |
| CN114883666B (en) * | 2022-07-13 | 2022-09-20 | 山东希格斯新能源有限责任公司 | Column electricity core mass sizing trimmer |
| CN116111176B (en) * | 2023-03-22 | 2023-11-10 | 上海君屹工业自动化股份有限公司 | Battery pack processing equipment capable of aligning battery cells and working method thereof |
| CN116525922B (en) * | 2023-07-03 | 2024-01-30 | 惠州市成泰机电设备有限公司 | Cylindrical battery gasket assembling device and assembling method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119010A (en) * | 2015-08-20 | 2015-12-02 | 罗林波 | Canning machine for cylindrical battery with negative electrode being provided with double polar lugs |
| CN105304928A (en) * | 2015-11-16 | 2016-02-03 | 罗传军 | Automatic casing machine of power type cylindrical battery |
| CN109638334A (en) * | 2018-10-26 | 2019-04-16 | 深圳市中基自动化有限公司 | A kind of package machine of cylindrical battery roll core |
| CN209766563U (en) * | 2019-04-10 | 2019-12-10 | 惠州市德赛电池有限公司 | automatic processing equipment for battery cell |
| CN111525144A (en) * | 2020-04-30 | 2020-08-11 | 惠州市多科达科技有限公司 | Automatic battery shell entering machine |
| CN211376839U (en) * | 2020-02-28 | 2020-08-28 | 广东利元亨智能装备股份有限公司 | Shell device and battery production system are gone into to electricity core |
| WO2021035860A1 (en) * | 2019-08-29 | 2021-03-04 | 武汉逸飞激光设备有限公司 | Integrated-tab cell production line |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511667B (en) * | 2018-03-29 | 2020-10-09 | 东莞市力星激光科技有限公司 | Shaping and assembling machine and method for soft-package battery cell module lug and busbar |
| CN210200855U (en) * | 2019-09-20 | 2020-03-27 | 广东拓斯达科技股份有限公司 | Bending and gluing machine and battery production line |
| CN112421094A (en) * | 2020-11-26 | 2021-02-26 | 无锡先导智能装备股份有限公司 | Electricity core processing equipment |
-
2021
- 2021-10-28 CN CN202111266509.7A patent/CN114122485B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119010A (en) * | 2015-08-20 | 2015-12-02 | 罗林波 | Canning machine for cylindrical battery with negative electrode being provided with double polar lugs |
| CN105304928A (en) * | 2015-11-16 | 2016-02-03 | 罗传军 | Automatic casing machine of power type cylindrical battery |
| CN109638334A (en) * | 2018-10-26 | 2019-04-16 | 深圳市中基自动化有限公司 | A kind of package machine of cylindrical battery roll core |
| CN209766563U (en) * | 2019-04-10 | 2019-12-10 | 惠州市德赛电池有限公司 | automatic processing equipment for battery cell |
| WO2021035860A1 (en) * | 2019-08-29 | 2021-03-04 | 武汉逸飞激光设备有限公司 | Integrated-tab cell production line |
| CN211376839U (en) * | 2020-02-28 | 2020-08-28 | 广东利元亨智能装备股份有限公司 | Shell device and battery production system are gone into to electricity core |
| CN111525144A (en) * | 2020-04-30 | 2020-08-11 | 惠州市多科达科技有限公司 | Automatic battery shell entering machine |
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|---|---|
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