CN115055816A - Automatic welding equipment and method for battery upper cover - Google Patents

Automatic welding equipment and method for battery upper cover Download PDF

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Publication number
CN115055816A
CN115055816A CN202210277253.8A CN202210277253A CN115055816A CN 115055816 A CN115055816 A CN 115055816A CN 202210277253 A CN202210277253 A CN 202210277253A CN 115055816 A CN115055816 A CN 115055816A
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China
Prior art keywords
assembly
upper cover
feeding
empty
cell
Prior art date
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Pending
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CN202210277253.8A
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Chinese (zh)
Inventor
胡先勤
王建刚
张坤
陈贤峰
胡栋
汪小伟
苏振英
郑利华
赖勇
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Shenzhen Huagong New Energy Equipment Co ltd
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Shenzhen Huagong New Energy Equipment Co ltd
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Application filed by Shenzhen Huagong New Energy Equipment Co ltd filed Critical Shenzhen Huagong New Energy Equipment Co ltd
Priority to CN202210277253.8A priority Critical patent/CN115055816A/en
Publication of CN115055816A publication Critical patent/CN115055816A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/008—Catching devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J11/00—Manipulators not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Robotics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to the field of new energy batteries, in particular to automatic welding equipment and a method for an upper cover of a battery, which comprises a battery core feeding mechanism, an upper cover feeding mechanism, a welding mechanism, a detection and blanking mechanism and a turntable mechanism; the four groups of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; the battery cell feeding station, the upper cover feeding station, the welding station and the detection and blanking station are arranged on the rotating direction of the turntable assembly at equal intervals in sequence, the battery cell feeding mechanism is used for placing a semi-finished battery cell into a clamp assembly on the battery cell feeding station, the upper cover feeding mechanism is used for placing the upper cover onto the semi-finished battery cell in the clamp assembly on the upper cover feeding station, the welding mechanism is used for welding the upper cover in the clamp assembly of the welding station with the semi-finished battery cell, and the detection and blanking mechanism is used for detecting and blanking the finished battery cell in the clamp assembly of the detection and blanking station. The invention replaces the traditional manual production, can improve the production efficiency and greatly reduce the production cost.

Description

Automatic welding equipment and method for battery upper cover
Technical Field
The invention relates to the technical field of new energy batteries, in particular to automatic welding equipment and method for an upper cover of a battery.
Background
The lithium ion battery is divided into a square lithium battery, a cylindrical lithium battery and a button lithium battery according to the appearance. The square battery is widely applied to the field of power batteries due to the characteristics of high volume utilization rate and convenience in grouping. In the production process of the square battery, the battery core tab and the upper cover need to be welded to realize the function of current conduction. However, in the existing production process, manual feeding, blanking and the like are mostly adopted for welding, the production efficiency is low, and the on-line detection of the insulativity and the airtightness of the battery cannot be realized.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the automatic welding equipment and the automatic welding method for the upper cover of the battery, which replace the traditional manual production, not only improve the production efficiency, but also greatly reduce the production cost, and simultaneously, the vision assembly, the Hi-Pot test assembly, the helium detection assembly and the like are adopted to be combined to work for monitoring and processing the quality of semi-finished products for producing the battery, so that the defective rate of the produced finished products is reduced, and the production cost is reduced.
In order to achieve the purpose, the technical scheme of the invention is an automatic welding device for an upper cover of a battery, which comprises a battery core feeding mechanism, an upper cover feeding mechanism, a welding mechanism, a detecting and discharging mechanism and a turntable mechanism; the turntable mechanism comprises a turntable assembly and four groups of clamp assemblies, and the four groups of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; the battery cell feeding mechanism is used for placing semi-finished battery cells into the clamp assembly on the battery cell feeding station, the upper cover feeding mechanism is used for placing the upper cover onto the semi-finished battery cells in the clamp assembly on the upper cover feeding station, the welding mechanism is used for welding the upper cover in the clamp assembly of the welding station with the semi-finished battery cells, and the detecting and blanking mechanism is used for detecting and blanking finished battery cells in the clamp assembly of the detecting and blanking station.
Further, the battery cell feeding mechanism comprises a battery cell feeding rack, a battery cell feeding robot, a full battery cell magazine feeding assembly, an empty battery cell magazine discharging assembly, an empty battery cell lifting assembly and a battery cell feeding visual assembly; the full-battery-core material box feeding assembly and the empty-battery-core material box discharging assembly are respectively arranged on the upper layer and the lower layer of the battery-core feeding rack; the battery cell feeding robot is arranged on one side of the battery cell feeding rack and used for grabbing semi-finished battery cells in the battery cell full magazine feeding assembly and placing the semi-finished battery cells in a clamp assembly on a battery cell feeding station; the empty battery box lifting assembly is positioned at one end of the battery cell feeding rack and used for transferring an empty battery cell box on the full battery cell box feeding assembly to the empty battery cell box discharging assembly; the battery cell loading visual assembly is arranged above the battery cell loading rack.
Furthermore, the full cell magazine feeding assembly comprises an upper belt transmission unit for receiving and conveying a full cell magazine, and the empty cell magazine discharging assembly comprises a lower belt transmission unit for receiving and outputting an empty cell magazine; the empty material box lifting assembly comprises an intermediate belt transmission unit and an empty material box lifting module used for driving the intermediate belt transmission unit to move in the vertical direction, and the intermediate belt transmission unit is used for receiving the empty electric core material boxes conveyed by the upper belt transmission unit and transferring the empty electric core material boxes to the lower belt transmission unit.
Further, the upper cover feeding mechanism comprises an upper cover feeding rack, an upper cover feeding robot and an upper cover feeding visual assembly; the upper cover feeding frame is provided with a full-tray station for placing full-tray upper covers; the upper cover feeding robot is arranged on one side of the upper cover feeding rack and used for grabbing the upper cover on the full material tray station and placing the upper cover on a semi-finished product battery cell in the clamp assembly on the upper cover feeding station; the upper cover feeding visual assembly is arranged above the upper cover feeding rack.
Furthermore, the upper cover feeding rack is also provided with an empty tray station for placing an empty upper cover tray; the upper cover feeding rack is also provided with a full-material-disc lifting module, an empty-material-disc lifting module and an empty-material-disc translation assembly, the full-material-disc lifting module is used for driving the full-material-disc material disc on the full-material-disc station to move upwards, the empty-material-disc translation assembly is used for transferring the empty-material-disc material on the full-material-disc station to the empty-material-disc station, and the empty-material-disc lifting module is used for driving the empty-material-disc material on the empty-material-disc station to move downwards.
Furthermore, the turntable assembly comprises a turntable, a DD motor and an electric slip ring, the DD motor for driving the turntable to rotate is arranged at the bottom of the turntable, and the electric slip ring is arranged above the turntable; four sets of anchor clamps subassemblies are followed the circumference equidistance interval of carousel set up in on the carousel.
Furthermore, the welding mechanism comprises a workbench, an XY module, a laser focusing shaft, a laser welding head and a dust collector; the XY module set up in on the workstation, the laser focusing axle install in on the XY module, the laser welding head with dust catcher coaxial arrangement in on the laser focusing axle.
Furthermore, the detecting and blanking mechanism comprises a helium detecting component, a Hi-Pot testing component, a blanking component, a first robot and a second robot; the Hi-Pot testing assembly is arranged between the turntable mechanism and the helium detecting assembly; the first robot is arranged on one side of the Hi-Pot test assembly and used for grabbing finished product battery cells in the fixture assembly on the detection and blanking station and placing the finished product battery cells on the Hi-Pot test assembly, and placing the finished product battery cells qualified in the Hi-Pot test qualified area after the Hi-Pot test is finished; and the second robot is arranged on one side of the helium detection assembly and is used for grabbing the finished product battery cells in the Hi-Pot test qualified area and placing the finished product battery cells on the helium detection assembly, placing the finished product battery cells qualified in the helium detection into the blanking assembly after the helium detection is finished, and placing the finished product battery cells unqualified in the helium detection into the NG disc.
The invention also provides an automatic welding method of the upper cover of the battery, which adopts the automatic welding equipment of the upper cover of the battery, and the method comprises the following steps:
1) driving the turntable assembly to rotate, so that one of the clamp assemblies is positioned on the battery cell feeding station; a full-cell magazine feeding assembly of the cell feeding mechanism automatically receives a full-cell magazine conveyed in a previous procedure and conveys the full-cell magazine to a cell feeding end, a cell feeding visual assembly carries out visual positioning, and a cell feeding robot grabs a semi-finished cell in the full-cell magazine at the cell feeding end and places the semi-finished cell in a cell feeding station into a clamp assembly on a cell feeding station;
2) driving the turntable assembly to rotate, so that the clamp assembly with the semi-finished product battery cell is positioned at an upper cover feeding station; an upper cover feeding visual component of the upper cover feeding mechanism carries out visual positioning, and an upper cover feeding robot grabs an upper cover in a full upper cover material tray and places the upper cover on a semi-finished product battery cell in a clamp component on an upper cover feeding station;
3) driving the turntable assembly to rotate, so that the clamp assembly provided with the semi-finished product battery cell and the upper cover is positioned at a welding station; a laser focusing shaft of the welding mechanism carries out laser focus calibration, the XY module drives a laser welding head to carry out welding, and a dust collector is adopted to suck away welding slag in time in the welding process;
4) after welding, driving the turntable assembly to rotate, and enabling the clamp assembly with the finished product battery cell to be positioned at a detection and blanking station; and a first robot of the detection and blanking mechanism grabs finished product battery cells on the detection and blanking station and places the finished product battery cells on the Hi-Pot test component for Hi-Pot test, battery cells qualified in the Hi-Pot test are grabbed by a second robot and placed in the helium detection component for helium detection, battery cells qualified in the helium detection are grabbed by the second robot and placed in the blanking component, and battery cells unqualified in the helium detection are grabbed by the second robot and placed in the NG disc.
Further, in the step 1), an empty cell magazine on the full cell magazine feeding assembly is transferred to an empty cell magazine discharging assembly from the empty magazine lifting assembly for discharging; in the step 2), the empty upper cover material discs on the full material disc station are transferred to the empty material disc station through the empty material disc translation assembly, when one empty upper cover material disc is moved on the full material disc station, the full material disc lifting module drives the full upper cover material discs on the full material disc station to move upwards for one cell, when one empty upper cover material disc is added on the empty material disc station, the empty material disc lifting module drives the empty material disc station on the empty material disc station to move downwards for one cell.
Compared with the prior art, the invention has the following beneficial effects:
the automatic welding equipment and the method for the upper cover of the battery adopt the electric core feeding mechanism to automatically feed the electric core, the upper cover feeding mechanism to automatically feed the upper cover, the welding mechanism to automatically weld, the detection and blanking mechanism to automatically detect and blank, and the turntable mechanism is matched to drive the four groups of clamp assemblies to rotate, so that the traditional manual production is replaced, the production efficiency can be greatly improved, the production cost is reduced, the labor is saved for enterprises, and the product quality is improved; meanwhile, the visual assembly is combined with the Hi-Pot testing assembly, the helium testing assembly and the like to work so as to monitor and process the quality of the finished product welded with the upper cover on line, and the defective rate of the produced finished product is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic welding device for an upper cover of a battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cell loading mechanism according to an embodiment of the present invention;
fig. 3 is a partially enlarged schematic view of a cell charging mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a turntable mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an upper cover feeding mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a welding mechanism according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a detecting and blanking mechanism provided in the embodiment of the present invention;
in the figure: 1. a battery cell feeding mechanism; 11. a battery cell feeding rack; 12. a battery cell loading robot; 13. a full cell magazine feeding assembly; 131. a belt is arranged; 132. an upper driving wheel; 133. an upper driven wheel; 134. an upper drive motor; 14. an empty cell magazine blanking assembly; 15. an empty magazine lifting assembly; 151. an intermediate belt drive unit; 1511. a middle frame body; 1512. a middle driving wheel; 152. an empty magazine lifting module; 1521. a column; 1522. a lift drive; 16. a battery core feeding visual assembly; 161. a camera support; 162. a CCD camera; 2. a turntable mechanism; 21. a turntable assembly; 211. a turntable; 212. a DD motor; 213. an electrical slip ring; 22. a clamp assembly; 23. ejecting and clamping the components; 3. an upper cover feeding mechanism; 31. the feeding machine frame is covered; 311. a carrier plate; 312. a tray frame; 313. a limiting block; 32. an upper cover feeding robot; 33. the visual component is loaded on the upper cover; 34. a full tray lifting module; 35. an empty tray lifting module; 36. an empty tray translation assembly; 361. a horizontal slide rail; 362. a horizontal slider; 363. a horizontal movement arm; 4. a welding mechanism; 41. a work table; 42. an XY module; 43. a laser focus axis; 44. a laser welding head; 45. a vacuum cleaner; 5. a detection and blanking mechanism; 51. a Hi-Pot test component; 52. a first robot; 53. a helium detection component; 531. a helium testing machine frame; 532. a helium detection device; 533. an NG disc; 54. a second robot; 55. and a blanking assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 7, the present embodiment provides an automatic welding device for an upper cover of a battery, which includes a battery core feeding mechanism 1, an upper cover feeding mechanism 3, a welding mechanism 4, a detecting and discharging mechanism 5, and a turntable mechanism 2; the turntable mechanism 2 comprises a turntable assembly 21 and four groups of clamp assemblies 22, and the four groups of clamp assemblies 22 are arranged on the turntable assembly 21 at equal intervals along the circumferential direction of the turntable assembly 21; the battery core feeding mechanism is characterized in that a battery core feeding station, an upper cover feeding station, a welding station and a detecting and discharging station are sequentially arranged in the rotating direction of the turntable assembly 21 at equal intervals, the battery core feeding mechanism 1 is used for placing a semi-finished battery core into a clamp assembly 22 on the battery core feeding station, the upper cover feeding mechanism 3 is used for placing the upper cover onto a semi-finished battery core in the clamp assembly 22 on the upper cover feeding station, the welding mechanism 4 is used for welding the upper cover in the clamp assembly 22 of the welding station with the semi-finished battery core, and the detecting and discharging mechanism 5 is used for detecting and discharging a finished battery core in the clamp assembly 22 of the detecting and discharging station. Electric core feed mechanism 1 in this embodiment, upper cover feed mechanism 3, welding mechanism 4, detect and unloading mechanism 5 and carousel mechanism 2 all set up on the board base, adopt electric core feed mechanism 1 automatic feeding electric core, upper cover feed mechanism 3 automatic feeding covers, 4 automatic weld of welding mechanism, detect and 5 automated inspection and the unloading of unloading mechanism, cooperation carousel mechanism 2 drives four group's anchor clamps subassemblies 22 and rotates, replace traditional manual production, can improve production efficiency widely, and the production cost is reduced, simultaneously for the saving manpower of enterprise, and the product quality is improved.
Further, the cell feeding mechanism 1 includes a cell feeding frame 11, a cell feeding robot 12, a full cell magazine feeding assembly 13, an empty cell magazine discharging assembly 14, an empty magazine lifting assembly 15, and a cell feeding vision assembly 16; the full cell material box feeding assembly 13 and the empty cell material box discharging assembly 14 are respectively arranged at the upper layer and the lower layer of the cell feeding rack 11; the cell loading robot 12 is arranged on one side of the cell loading frame 11 and is used for grabbing semi-finished cells in the cell filling magazine loading assembly 13 and placing the semi-finished cells in a clamp assembly 22 on a cell loading station; the empty cell magazine lifting assembly 15 is located at one end of the cell feeding frame 11 and is used for transferring empty cell magazines on the full cell magazine feeding assembly 13 to the empty cell magazine discharging assembly 14; the cell loading visual assembly 16 is disposed above the cell loading frame 11. As shown in fig. 2-3, the cell feeding mechanism 1 of this embodiment adopts a double-layer return line, and automatically supplies materials to the magazine drawstrings in the preceding process step by automatic docking, and the upper full cell magazine feeding assembly 13 performs slow magazine feeding, and the empty magazine is converged to the preceding process step by the empty cell magazine blanking assembly 14 in the lower layer.
Further, the full cell magazine feeding assembly 13 includes an upper belt transmission unit for receiving and conveying the full cell magazine, and the empty cell magazine discharging assembly 14 includes a lower belt transmission unit for receiving and conveying the empty cell magazine; the empty material box lifting assembly 15 comprises an intermediate belt transmission unit 151 and an empty material box lifting module 152 for driving the intermediate belt transmission unit 151 to move in the vertical direction, wherein the intermediate belt transmission unit 151 is used for receiving the empty electric core material box conveyed by the upper belt transmission unit and transferring the empty electric core material box to the lower belt transmission unit. As shown in fig. 2 to fig. 3, the full cell magazine feeding assembly 13, the empty cell magazine discharging assembly 14, and the empty cell magazine lifting assembly 15 in this embodiment both adopt a belt transmission structure, so as to receive and transfer the empty cell magazine. Optimally, the rack is also provided with a limiting assembly, and when the full-cell magazine of the upper belt transmission unit reaches the design position of the cell feeding end, the limiting assembly stretches out to limit the full-cell magazine to move forward continuously; when the battery cell in the full battery cell magazine at the battery cell loading end is completely taken by the battery cell loading robot 12, the limiting component retracts, at this time, the middle belt transmission unit 151 waits at a position flush with the upper belt transmission unit, the rotation direction of the middle belt transmission unit is consistent with that of the upper belt transmission unit, the upper belt transmission unit drives the empty battery cell to move forward continuously and transition the empty battery cell onto the middle belt transmission unit 151, the empty battery cell magazine stops rotating when being completely positioned on the middle belt transmission unit 151, the empty battery cell lifting module 152 is started and drives the middle belt transmission unit 151 and the empty battery cell on the middle belt transmission unit to move downwards to a position flush with the lower belt transmission unit, the middle belt transmission unit 151 rotates reversely, the empty battery cell magazine on the middle belt transmission unit is transitioned onto the lower belt transmission unit, and when the empty battery cell magazine is completely transitioned onto the lower belt transmission unit, the middle belt transmission unit 151 stops rotating, the lower belt transmission unit drives the hollow battery core material box to discharge.
As shown in fig. 2 to fig. 3, the upper belt transmission unit includes an upper belt 131, an upper driving wheel 132, an upper driven wheel 133 and an upper driving motor 134, the upper driving wheel 132 and the upper driven wheel 133 are rotatably mounted on the cell loading frame 11, the upper belt 131 is tensioned on the upper driving wheel 132 and the upper driven wheel 133, and the upper driving motor 134 is fixed on the cell loading frame 11 and connected to the upper driving wheel 132; the structure of the lower belt transmission unit is the same as that of the upper belt transmission unit, and is not described in detail herein.
2-3, the intermediate belt transmission unit 151 includes an intermediate frame body 1511, an intermediate belt, an intermediate driving wheel 1512, an intermediate driven wheel and an intermediate driving motor, wherein the intermediate driving wheel 1512 and the intermediate driven wheel are rotatably mounted on the intermediate frame body 1511, the intermediate belt is tensioned on the intermediate driving wheel 1512 and the intermediate driven wheel, and the intermediate driving motor is connected with the intermediate driving wheel 1512; the empty magazine lifting module 152 comprises an upright post 1521, a lifting driving device 1522, a lifting track and a lifting slider, wherein the upright post 1521 is fixed on the battery cell feeding frame 11, the upright post 1521 is provided with the lifting track arranged along the vertical direction, and the lifting slider is arranged on the lifting track, connected with the middle frame body 1511 and used for driving the middle belt transmission unit 151 to move up and down; the lifting driving device 1522 is fixed on the top of the upright column 1521, and the output end of the lifting driving device 1522 is connected with the lifting slider.
In detail of the foregoing embodiment, as shown in fig. 2, the cell loading visual assembly 16 includes a camera support 161 and a CCD camera 162, where the camera support 161 is fixed to a cell loading end of the cell loading frame 11; the CCD camera 162 is movably disposed on the camera support 161, and is configured to perform visual positioning on the full cell magazine at the cell loading end and the semi-finished cell therein.
Further, the upper cover feeding mechanism 3 includes an upper cover feeding rack 31, an upper cover feeding robot 32 and an upper cover feeding visual assembly 33; the upper cover feeding rack 31 is provided with a full tray station for placing full upper cover trays; the upper cover feeding robot 32 is arranged on one side of the upper cover feeding rack 31 and is used for grabbing the upper cover on the full material tray station and placing the upper cover on the semi-finished product battery cell in the clamp assembly 22 on the upper cover feeding station; the upper cover feeding visual assembly 33 is arranged above the upper cover feeding rack 31. As shown in fig. 4, in this embodiment, the structure of the upper cover feeding visual assembly 33 is the same as that of the cell feeding visual assembly 16, and is not described herein again.
Furthermore, as shown in fig. 4, the upper cover loading frame 31 further has an empty tray station for placing an empty upper cover tray; the upper cover material loading frame 31 is provided with a full-material-disc lifting module 34, an empty-material-disc lifting module 35 and an empty-material-disc translation assembly 36, the full-material-disc lifting module 34 is used for driving full-material-disc upward movement on a full-material-disc station, the empty-material-disc translation assembly 36 is used for transferring empty upper cover material discs on the full-material-disc station to the empty-material-disc station, and the empty-material-disc lifting module 35 is used for driving empty upper cover material discs on the empty-material-disc station to move downwards.
In order to optimize the above embodiment, as shown in fig. 4, in this embodiment, the upper cover feeding rack 31 includes a loading plate 311, tray frames 312 for placing full upper cover trays and empty upper cover trays are respectively disposed at positions on the loading plate 311 corresponding to the full tray station and the empty tray station, and the top of the tray frame 312 is provided with a limit block 313 to prevent the full upper cover trays or the empty upper cover trays from being pushed out of the tray frame 312; and the bearing plate 311 below the tray frame 312 is provided with an ejection hole smaller than the upper cover tray in size, the full tray lifting module 34 and the empty tray lifting module 35 are both arranged below the bearing plate 311, the full tray lifting module 34 can jack up the full upper cover tray through the ejection hole at the full tray station, and the empty tray lifting module 35 can hold the empty upper cover tray through the ejection hole at the empty tray station. The full tray lifting module 34 and the empty tray lifting module 35 have the same structure, and can adopt cylinder driving structures, and the end part of a piston rod of each cylinder driving structure can fix the top supporting plate for fixedly jacking or supporting the upper cover tray.
In detail, as shown in fig. 4, in this embodiment, the tray frames 312 of the full tray station and the tray frames 312 of the empty tray station are arranged in parallel, and the empty tray translation assembly 36 includes a horizontal slide rail 361, a horizontal slider 362, a horizontal movement arm 363, and a driving device for driving the horizontal slider 362 to move along the horizontal slide rail 361, where the horizontal slide rail 361 is fixed above the same side of the two tray frames 312; the horizontal moving arm 363 is perpendicular to the horizontal sliding rail 361, and one end of the horizontal moving arm is fixed on the horizontal sliding block 362, and the other end of the horizontal moving arm is provided with a suction disc structure for grabbing an empty upper cover tray of a full tray station and placing the empty upper cover tray into the tray frame 312 of an empty tray station.
Further, the turntable assembly 21 comprises a turntable 211, a DD motor 212 and an electrical slip ring 213, the DD motor 212 for driving the turntable 211 to rotate is disposed at the bottom of the turntable 211, and the electrical slip ring 213 is disposed above the turntable 211; four sets of clamp assemblies 22 are arranged on the turntable 211 at equidistant intervals along the circumference of the turntable 211. As shown in fig. 5, in this embodiment, when the turntable 211 rotates 90 degrees, waiting for feeding, welding or discharging needs to be suspended, and the DD motor 212 is used to drive the turntable 211 to rotate, so as to ensure the rotational positioning accuracy; an electrical slip ring 213 is provided above the middle of the turntable 211, with the entire circuit going up into the electrical cabinet.
Optimizing the above embodiment, as shown in fig. 5, a liftout opening clamp assembly 23 is further disposed below the turntable 211, the four sets of clamp assemblies 22 in this embodiment clamp the semi-finished product battery cell through an elastic element, when the battery cell feeding robot 12 is to grab the semi-finished product battery cell, the liftout opening clamp assembly 23 upwards opens the elastic element and leaves a position where the semi-finished product battery cell can be placed, after the battery cell feeding robot 12 places the semi-finished product battery cell on the position left by the elastic element opening, the liftout opening clamp assembly 23 retracts, the elastic element positions and clamps the semi-finished product battery cell, and then the semi-finished product battery cell is moved to one end of the next station along with the turntable 211.
Further, the welding mechanism 4 comprises a workbench 41, an XY module 42, a laser focusing shaft 43, a laser welding head 44 and a dust collector 45; XY module 42 set up in on the workstation 41, laser focusing shaft 43 install in on the XY module 42, laser welding head 44 with dust catcher 45 coaxial arrangement in on the laser focusing shaft 43. As shown in fig. 6, in the present embodiment, the worktable 41 is fixed on the base of the machine, the XY module 42, the dust collector 45 and the laser focusing shaft 43 may all adopt the existing structure, wherein the XY module 42 is used to drive the laser welding head 44 to move along the X axis and the Y axis to move along the welding track, and may be driven by a linear motor to ensure the precision of the welding track and the consistency of the welding product, the laser focusing shaft 43 is used to adjust the focal length, and the dust collector 45 is used to absorb away the welding slag and dust generated during the laser welding process. In this embodiment, an automatic weld detection device may be further disposed on one side of the welding mechanism 4, so as to detect the weld of the finished battery cell, and the qualified finished battery cell is conveyed to the next station along with the turntable 211.
Further, the detecting and blanking mechanism 5 comprises a helium detecting component 53, a Hi-Pot testing component 51, a blanking component 55, a first robot 52 and a second robot 54; the Hi-Pot test assembly 51 is arranged between the turntable mechanism 2 and the helium testing assembly 53; the first robot 52 is arranged on one side of the Hi-Pot test assembly 51 and is used for grabbing finished cells in the fixture assembly 22 on the detection and blanking station and placing the finished cells on the Hi-Pot test assembly 51, and placing the finished cells qualified in the Hi-Pot test into a Hi-Pot test qualified area after the Hi-Pot test is finished; the second robot 54 is disposed on one side of the helium testing assembly 53, and is configured to grab the finished product cells in the Hi-Pot test qualified area and place the finished product cells on the helium testing assembly 53, place the finished product cells qualified in the helium testing on the blanking assembly 55 after the helium testing is completed, and place the finished product cells unqualified in the helium testing on the NG disc 533. In this embodiment, the blanking assembly 55 may be a flat belt transmission structure, and a sensor may be disposed at the blanking end thereof.
In order to optimize the above embodiment, as shown in fig. 7, the helium testing component 53 includes a helium testing rack 531 and a helium testing device 532, one end of the blanking component 55 extends to the helium testing rack 531, and the helium testing rack 531 on both sides of the blanking component 55 is provided with a plurality of helium testing devices 532 and NG disks 533; the second robot 54 has two helium detectors 532 respectively arranged at two sides of the blanking assembly 55.
As shown in fig. 1 to fig. 7, the present embodiment further provides an automatic welding method for an upper cover of a battery, which adopts the above automatic welding apparatus for an upper cover of a battery, and the method includes the following steps:
1) driving the turntable assembly 21 to rotate, so that one of the clamp assemblies 22 is positioned on the cell loading station; a full cell magazine feeding assembly 13 of the cell feeding mechanism 1 automatically receives a full cell magazine conveyed in a previous process and conveys the full cell magazine to a cell feeding end, and a cell feeding visual assembly 16 performs visual positioning to guide a cell feeding robot 12 to take a material track; the cell feeding robot 12 grabs semi-finished cells in a full cell magazine at the cell feeding end and places the semi-finished cells into the clamp assembly 22 on the cell feeding station, the cell feeding robot 12 scans codes of the semi-finished cells in the feeding process, and NG products are collected in a centralized manner and are manually processed;
2) driving the turntable assembly 21 to rotate, so that the clamp assembly 22 containing the semi-finished product battery cell is positioned at an upper cover feeding station; the upper cover feeding visual assembly 33 of the upper cover feeding mechanism 3 performs visual positioning to guide the upper cover feeding robot 32 to take a material track; the upper cover feeding robot 32 grabs the upper cover in the upper cover tray and puts the upper cover on the semi-finished product battery cell in the clamp assembly 22 on the upper cover feeding station;
3) driving the turntable assembly 21 to rotate, so that the clamp assembly 22 provided with the semi-finished product battery cell and the upper cover is positioned at a welding station; the laser focusing shaft 43 of the welding mechanism 4 is used for carrying out laser focal length calibration, the XY module 42 drives the laser welding head 44 to move along the welding track, the laser welding head 44 carries out welding, and a dust collector 45 is adopted to timely absorb welding slag in the welding process;
4) after welding, driving the turntable assembly 21 to rotate, and enabling the fixture assembly 22 with the finished product battery cell to be located at a detection and blanking station; the first robot 52 of the detecting and blanking mechanism 5 grabs the finished product battery cells on the detecting and blanking station and places the finished product battery cells on the Hi-Pot testing component 51 for Hi-Pot testing, the battery cells qualified in the Hi-Pot testing are grabbed by the second robot 54 and placed in the helium detecting component 53 for helium detecting, the battery cells qualified in the helium detecting are grabbed by the second robot 54 and placed in the blanking component 55, and the battery cells unqualified in the helium detecting are grabbed by the second robot 54 and placed in the NG disc 533 for centralized collection.
Along with the rotation of the turntable assembly 21, the cell feeding robot 12 feeds a semi-finished cell into the clamp assembly 22 on the cell feeding station, the upper cover feeding robot 32 feeds a cover into the clamp assembly 22 on the upper cover feeding station, the laser welding head 44 welds the semi-finished cell and the upper cover in the clamp assembly 22 on the welding station, and the first robot 52 performs blanking on a finished cell on the detection and blanking station and performs subsequent Hi-Pot test and helium test.
Further, in step 1), the empty cell magazine on the full cell magazine feeding assembly 13 is transferred to the empty cell magazine discharging assembly 14 from the empty magazine lifting assembly 15 for discharging.
Further, in step 2), the empty upper cover trays on the full tray stations are transferred to the empty tray stations by the empty tray translation assembly 36, and when an empty upper cover tray is removed from the full tray stations, the full tray lifting module 34 drives the full upper cover trays on the full tray stations to move up one grid, and when an empty upper cover tray is added to the empty tray stations, the empty tray lifting module 35 drives the empty tray stations on the empty tray stations to move down one grid.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a battery upper cover automatic weld equipment which characterized in that: the device comprises a battery cell feeding mechanism, an upper cover feeding mechanism, a welding mechanism, a detecting and discharging mechanism and a turntable mechanism; the turntable mechanism comprises a turntable assembly and four groups of clamp assemblies, and the four groups of clamp assemblies are arranged on the turntable assembly at equal intervals along the circumferential direction of the turntable assembly; the battery cell feeding mechanism is used for placing semi-finished battery cells into the clamp assembly on the battery cell feeding station, the upper cover feeding mechanism is used for placing the upper cover onto the semi-finished battery cells in the clamp assembly on the upper cover feeding station, the welding mechanism is used for welding the upper cover in the clamp assembly of the welding station with the semi-finished battery cells, and the detecting and blanking mechanism is used for detecting and blanking finished battery cells in the clamp assembly of the detecting and blanking station.
2. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the battery cell feeding mechanism comprises a battery cell feeding rack, a battery cell feeding robot, a full battery cell magazine feeding assembly, an empty battery cell magazine discharging assembly, an empty battery cell lifting assembly and a battery cell feeding visual assembly; the full-battery-core material box feeding assembly and the empty-battery-core material box discharging assembly are respectively arranged on the upper layer and the lower layer of the battery-core feeding rack; the battery cell feeding robot is arranged on one side of the battery cell feeding rack and used for grabbing semi-finished battery cells in the battery cell full magazine feeding assembly and placing the semi-finished battery cells in a clamp assembly on a battery cell feeding station; the empty battery box lifting assembly is positioned at one end of the battery cell feeding rack and used for transferring an empty battery cell box on the full battery cell box feeding assembly to the empty battery cell box discharging assembly; the battery cell loading visual assembly is arranged above the battery cell loading rack.
3. The automatic welding equipment for the upper cover of the battery as claimed in claim 2, wherein: the full-cell magazine feeding assembly comprises an upper belt transmission unit for receiving and conveying a full-cell magazine, and the empty-cell magazine discharging assembly comprises a lower belt transmission unit for receiving and outputting an empty-cell magazine; the empty material box lifting assembly comprises an intermediate belt transmission unit and an empty material box lifting module used for driving the intermediate belt transmission unit to move in the vertical direction, and the intermediate belt transmission unit is used for receiving the empty electric core material boxes conveyed by the upper belt transmission unit and transferring the empty electric core material boxes to the lower belt transmission unit.
4. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the upper cover feeding mechanism comprises an upper cover feeding rack, an upper cover feeding robot and an upper cover feeding visual assembly; the upper cover feeding frame is provided with a full-tray station for placing full-tray upper covers; the upper cover feeding robot is arranged on one side of the upper cover feeding rack and used for grabbing the upper cover on the full material tray station and placing the upper cover on a semi-finished product battery cell in the clamp assembly on the upper cover feeding station; the upper cover feeding visual assembly is arranged above the upper cover feeding rack.
5. The automatic welding equipment for the upper cover of the battery as claimed in claim 4, wherein: the upper cover feeding rack is also provided with an empty tray station for placing an empty upper cover tray; the upper cover feeding rack is also provided with a full-material-disc lifting module, an empty-material-disc lifting module and an empty-material-disc translation assembly, the full-material-disc lifting module is used for driving the full-material-disc material disc on the full-material-disc station to move upwards, the empty-material-disc translation assembly is used for transferring the empty-material-disc material on the full-material-disc station to the empty-material-disc station, and the empty-material-disc lifting module is used for driving the empty-material-disc material on the empty-material-disc station to move downwards.
6. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the turntable assembly comprises a turntable, a DD motor and an electric slip ring, the DD motor for driving the turntable to rotate is arranged at the bottom of the turntable, and the electric slip ring is arranged above the turntable; four sets of anchor clamps subassemblies are followed the circumference equidistance interval of carousel set up in on the carousel.
7. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the welding mechanism comprises a workbench, an XY module, a laser focusing shaft, a laser welding head and a dust collector; the XY module set up in on the workstation, the laser focusing axle install in on the XY module, the laser welding head with dust catcher coaxial arrangement in on the laser focusing axle.
8. The automatic welding equipment for the upper cover of the battery as claimed in claim 1, wherein: the detection and blanking mechanism comprises a helium detection assembly, a Hi-Pot test assembly, a blanking assembly, a first robot and a second robot; the Hi-Pot testing assembly is arranged between the turntable mechanism and the helium detecting assembly; the first robot is arranged on one side of the Hi-Pot test assembly and used for grabbing finished product battery cells in the fixture assembly on the detection and blanking station and placing the finished product battery cells on the Hi-Pot test assembly, and placing the finished product battery cells qualified in the Hi-Pot test qualified area after the Hi-Pot test is finished; and the second robot is arranged on one side of the helium detection assembly and is used for grabbing the finished product battery cells in the Hi-Pot test qualified area and placing the finished product battery cells on the helium detection assembly, placing the finished product battery cells qualified in the helium detection into the blanking assembly after the helium detection is finished, and placing the finished product battery cells unqualified in the helium detection into the NG disc.
9. An automatic welding method for an upper cover of a battery is characterized in that: the automatic welding equipment for the battery upper cover, which adopts any one of claims 1-8, comprises the following steps:
1) driving the turntable assembly to rotate, so that one of the clamp assemblies is positioned on the battery cell feeding station; a full-cell magazine feeding assembly of the cell feeding mechanism automatically receives a full-cell magazine conveyed in a previous procedure and conveys the full-cell magazine to a cell feeding end, a cell feeding visual assembly carries out visual positioning, and a cell feeding robot grabs a semi-finished cell in the full-cell magazine at the cell feeding end and places the semi-finished cell in a cell feeding station into a clamp assembly on a cell feeding station;
2) driving the turntable assembly to rotate, so that the clamp assembly with the semi-finished product battery cell is positioned at an upper cover feeding station; an upper cover feeding visual component of the upper cover feeding mechanism performs visual positioning, and an upper cover feeding robot grabs an upper cover in a full upper cover tray and places the upper cover on a semi-finished product battery cell in a clamp component on an upper cover feeding station;
3) driving the turntable assembly to rotate, so that the clamp assembly provided with the semi-finished product battery cell and the upper cover is positioned at a welding station; a laser focusing shaft of the welding mechanism is used for carrying out laser focus calibration, the XY module drives a laser welding head to carry out welding, and a dust collector is adopted to suck away welding slag in time in the welding process;
4) after welding, driving the turntable assembly to rotate, and enabling the clamp assembly with the finished product battery cell to be positioned at a detection and blanking station; and a first robot of the detection and blanking mechanism grabs finished product battery cells on the detection and blanking station and places the finished product battery cells on the Hi-Pot test component for Hi-Pot test, battery cells qualified in the Hi-Pot test are grabbed by a second robot and placed in the helium detection component for helium detection, battery cells qualified in the helium detection are grabbed by the second robot and placed in the blanking component, and battery cells unqualified in the helium detection are grabbed by the second robot and placed in the NG disc.
10. The automatic welding method for the upper cover of the battery as claimed in claim 9, wherein: in the step 1), an empty cell magazine on the full cell magazine feeding assembly is transferred to an empty cell magazine discharging assembly from the empty magazine lifting assembly to be discharged; in the step 2), the empty upper cover material discs on the full material disc station are transferred to the empty material disc station through the empty material disc translation assembly, when one empty upper cover material disc is moved on the full material disc station, the full material disc lifting module drives the full upper cover material discs on the full material disc station to move upwards for one cell, when one empty upper cover material disc is added on the empty material disc station, the empty material disc lifting module drives the empty material disc station on the empty material disc station to move downwards for one cell.
CN202210277253.8A 2022-03-21 2022-03-21 Automatic welding equipment and method for battery upper cover Pending CN115055816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210277253.8A CN115055816A (en) 2022-03-21 2022-03-21 Automatic welding equipment and method for battery upper cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210277253.8A CN115055816A (en) 2022-03-21 2022-03-21 Automatic welding equipment and method for battery upper cover

Publications (1)

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CN115055816A true CN115055816A (en) 2022-09-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116175028A (en) * 2023-05-04 2023-05-30 常州市鹏瑞自动化设备有限公司 Welding bus and welding method for steel grating edge wrapping
CN117554378A (en) * 2024-01-02 2024-02-13 宁德时代新能源科技股份有限公司 Welding detection system and defect detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116175028A (en) * 2023-05-04 2023-05-30 常州市鹏瑞自动化设备有限公司 Welding bus and welding method for steel grating edge wrapping
CN116175028B (en) * 2023-05-04 2023-07-21 常州市鹏瑞自动化设备有限公司 Welding bus and welding method for steel grating edge wrapping
CN117554378A (en) * 2024-01-02 2024-02-13 宁德时代新能源科技股份有限公司 Welding detection system and defect detection method

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