CN113427127B - Welding device for battery module side plate - Google Patents

Welding device for battery module side plate Download PDF

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Publication number
CN113427127B
CN113427127B CN202110728946.XA CN202110728946A CN113427127B CN 113427127 B CN113427127 B CN 113427127B CN 202110728946 A CN202110728946 A CN 202110728946A CN 113427127 B CN113427127 B CN 113427127B
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CN
China
Prior art keywords
side plate
clamping
plate
welding
module
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Active
Application number
CN202110728946.XA
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Chinese (zh)
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CN113427127A (en
Inventor
李文
赵亮
王松
马红卫
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Wuxi Autowell Technology Co Ltd
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Wuxi Autowell Technology Co Ltd
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Priority to CN202110728946.XA priority Critical patent/CN113427127B/en
Publication of CN113427127A publication Critical patent/CN113427127A/en
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Classifications

    • 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
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to a welding device for side plates of a battery module, which comprises a module feeding part, a side plate feeding part and a welding part; the module feeding part is configured to convey the battery module preloaded with the end plate to the welding part; the side plate feeding part is configured to convey the side plate to the welding part and press-connect the side plate to the end plate; the weld is configured to weld the side plate to the end plate. According to the invention, the battery module and the side plate are respectively conveyed to the welding part through the module feeding part and the side plate feeding part, so that manual feeding is replaced, the production efficiency is improved, and the welding quality is ensured.

Description

Welding device for battery module side plate
Technical Field
The invention relates to square shell lithium battery production equipment, in particular to a welding device for side plates of a battery module.
Background
The square shell lithium battery module is formed by assembling a plurality of battery cells into a cuboid shape, and then two end plates and two side plates are wound around the cuboid to fix the square shell lithium battery module into a module. Wherein the side plates and the end plates need to be integrally connected by welding.
The traditional welding mode of the side plates of the battery module adopts a single welding machine for welding, the battery core, the end plates and the side plates are fed to the welding machine by manpower, and after the welding is finished, the module is fed from the welding machine by manpower. The welding mode has low production efficiency and is difficult to ensure welding quality.
Disclosure of Invention
Aiming at the problem of low production efficiency of welding the side plates of the existing battery module, the invention provides a welding device for the side plates of the battery module, which has high production efficiency.
The technical scheme of the invention is as follows: a welding device for side plates of a battery module comprises a module feeding part, a side plate feeding part and a welding part; wherein: the module feeding part is configured to convey the battery module preloaded with the end plate to the welding part; the side plate feeding part is configured to convey the side plate to the welding part and press-connect the side plate to the end plate; the weld is configured to weld the side plate to the end plate.
The battery module and the side plates are respectively conveyed to the welding part through the module feeding part and the side plate feeding part, so that manual feeding is replaced, the production efficiency is improved, and the welding quality is ensured.
Further, the module feeding part comprises a module feeding mechanism, a module carrying mechanism and a module conveying mechanism; the module feeding mechanism is configured to store a battery module to be fed and clamp the end plate at the end part of the battery module; the module carrying mechanism is configured to carry the battery module together with the end plate from the module loading mechanism to the module conveying mechanism; the module conveying mechanism is configured to fix the battery module and the end plate conveyed by the module conveying mechanism to the welding tool and convey the welding tool to the welding part.
The battery module stored at the module feeding mechanism is conveyed to the module conveying mechanism through the module conveying mechanism, so that the mechanical feeding of the battery module is realized, and the feeding efficiency is improved.
Further, the module conveying mechanism comprises a conveying clamping part and a conveying moving part, wherein the conveying clamping part is arranged on the conveying moving part, and the conveying moving part drives the conveying clamping part to translate from the upper part of the module feeding mechanism to the upper part of the module conveying mechanism; the carrying clamping part comprises a clamping jaw assembly and a lifting assembly, wherein the clamping jaw assembly is arranged on the lifting assembly, the lifting assembly drives the clamping jaw assembly to lift, and the clamping jaw assembly is used for clamping the battery module and the end plate; or the carrying clamping part comprises a mounting seat, two groups of clamping jaw assemblies and two groups of lifting assemblies, the two groups of lifting assemblies are relatively arranged on the mounting seat, the two groups of clamping jaw assemblies are respectively arranged on the two groups of lifting assemblies, each group of lifting assemblies respectively drives the corresponding clamping jaw assemblies to lift, and the two groups of clamping jaw assemblies are respectively used for clamping and taking the two groups of battery modules and the end plates.
The battery module is clamped by the carrying clamping part, and the carrying moving part is used for driving the carrying clamping part to move from the module feeding mechanism to the module conveying mechanism, so that the battery module is transferred; the carrying clamping part comprises two groups of carrying assemblies, and the two groups of carrying assemblies synchronously act, so that the carrying efficiency can be improved by times.
Further, the module conveying mechanism comprises a welding tool and a tool moving part, the welding tool is arranged on the tool moving part, and the tool moving part drives the welding tool to translate; the welding tool comprises a tool frame, a fixed clamping plate, a movable clamping plate and a clamping plate driving piece, wherein the fixed clamping plate is fixed on the tool frame, the movable clamping plate is arranged on a movable part of the clamping plate driving piece, and the clamping plate driving piece is arranged on the tool frame; or the welding fixture comprises a fixture frame, a fixed clamping plate, two movable clamping plates and two clamping plate driving parts, wherein the fixed clamping plate is fixed on the fixture frame, the two movable clamping plates are respectively positioned at two sides of the fixed clamping plate and are respectively arranged on the movable parts of the two clamping plate driving parts, and the two clamping plate driving parts are respectively arranged on the fixture frame; the clamping plate driving piece drives the movable clamping plate to move towards the fixed clamping plate, so that the battery module is clamped.
And the welding tool fixed with the battery module is moved to a welding station through the tool moving part, so that the battery module is transferred.
Further, the side plate feeding part comprises a side plate feeding mechanism, a side plate material taking mechanism, a side plate overturning mechanism and a side plate clamping mechanism; the side plate feeding mechanism is configured to store side plates to be fed; the side plate material taking mechanism is configured to convey the side plate from the side plate feeding mechanism to the side plate overturning mechanism; the side plate overturning mechanism is configured to horizontally fix the side plate and drive the side plate to overturn to a vertical position; the side plate clamping mechanism is configured to clamp the side plate at the vertical position of the side plate turnover mechanism, move the side plate to the welding portion, and press-contact the side plate on the end plate of the battery module at the welding portion.
Get the material from curb plate feed mechanism through curb plate feeding mechanism to carry curb plate to curb plate tilting mechanism, make the curb plate overturn from the horizontal position to the vertical position through curb plate tilting mechanism, press from both sides the curb plate and get and press from both sides on the end plate of the battery module that is located the welding position through the curb plate and get the mechanism, realize the equipment of curb plate and end plate.
Further, the side plate material taking mechanism comprises a side plate suction part, a material taking lifting part and a material taking translation part; the side plate suction part is arranged on the material taking lifting part, and the material taking lifting part is arranged on the material taking translation part; the material taking translation part drives the material taking lifting part to translate, the material taking lifting part drives the side plate suction part to lift, and the side plate suction part is used for sucking the side plate.
The side plate is sucked through the side plate suction part, and the space position of the side plate suction part is moved through the material taking lifting part and the material taking translation part, so that the side plate is transferred from the side plate feeding mechanism to the side plate overturning mechanism.
Further, the side plate overturning mechanism comprises an adsorption overturning platform, a platform rotating part and a platform lifting part, wherein the adsorption overturning platform is arranged on the platform rotating part, and the platform rotating part is arranged on the platform lifting part; the platform lifting part drives the platform rotating part to lift, the platform rotating part drives the adsorption overturning platform to overturn, and the adsorption overturning platform is used for adsorbing the side plates.
The side plates are adsorbed by the adsorption overturning platform, the side plates are overturned from the horizontal position to the vertical position by the platform rotating part, the side plates are ensured to be positioned at the correct welding positions, the side plates are lifted to the welding positions by the platform lifting part, and the correct feeding of the side plates is realized.
Further, the side plate clamping mechanism comprises a clamping frame, a component translation part, a component mounting plate, a side plate clamping component and a compacting component; the side plate clamping assembly and the pressing assembly are both arranged on the assembly mounting plate, the pressing assembly is positioned on one side of the side plate clamping assembly, the assembly mounting plate is arranged on a movable part of the assembly translation part, and the assembly translation part is arranged on the clamping frame; the side plate clamping component is used for clamping the side plate, the compressing component is used for compressing the side plate on the battery module, and the component translation part drives the side plate clamping component to translate with the compressing component.
The side plate clamping mechanism clamps the side plates through the side plate clamping assembly, the side plates are pressed on the end plates through the pressing assembly, and the preparation work of the side plates before welding is realized.
Further, the welding part comprises a laser mechanism and a laser driving mechanism, the laser mechanism is arranged on the laser driving mechanism, the laser driving mechanism drives the laser mechanism to move at random in space, and the laser mechanism is used for welding the side plate and the end plate.
The laser driving mechanism drives the laser mechanism to move at random in space, so that the laser mechanism can reach a welding position, and the welding of the side plates is realized.
Further, the welding part also comprises a double-layer welding table, and each layer of the double-layer welding table is provided with a sliding rail extending to the side plate feeding part.
Realize quick material loading through double-deck welding platform, make the welding part can incessantly weld, improve welding efficiency.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a module feeding portion in the embodiment shown in fig. 1.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a schematic perspective view of a module feeding mechanism in fig. 2.
Fig. 5 is a schematic perspective view of the carrying and gripping part in fig. 2.
Fig. 6 is a front view of fig. 5.
Fig. 7 is a right side view of fig. 6.
Fig. 8 is a schematic perspective view of the welding tool in fig. 2.
Fig. 9 is a front view of fig. 8.
Fig. 10 is a schematic perspective view of a loading portion of a side plate in the embodiment shown in fig. 1.
Fig. 11 is a schematic perspective view of a side plate feeding mechanism in fig. 10.
Fig. 12 is a schematic perspective view of the side panel take off mechanism of fig. 10.
Fig. 13 is a side view of fig. 12.
Fig. 14 is a schematic perspective view of the side plate tilting mechanism in fig. 10.
Fig. 15 is a front view of fig. 14.
Fig. 16 is a schematic perspective view of the side plate clamping mechanism in fig. 10.
Fig. 17 is an enlarged view of the side panel gripping assembly of fig. 16 in a perspective view.
Fig. 18 is a schematic perspective view of the welded portion in the embodiment shown in fig. 1.
Fig. 19 is a schematic perspective view of a double-layer soldering station in the embodiment shown in fig. 1.
Fig. 20 is a front view of fig. 19.
Fig. 1 to 20 include:
a battery module side plate welding device 1;
A module loading part 10;
The module feeding mechanism 11, the module fixing part 111, the fixing frame 1111, the baffle 1112, the baffle driving member 1113, the fixing frame moving part 112 and the rail 1121;
A module carrying mechanism 12, a carrying gripping portion 121, a mounting base 1211, a jaw assembly 1212, a lifting assembly 1213, a carrying moving portion 122, a guide rail 1221, a backup plate 1511, a backup plate drive 1512, a barrier bar 1513, a barrier bar drive 1514, and a detection assembly 1214;
the module conveying mechanism 13, the welding fixture 131, the fixture frame 1311, the fixed clamping plate 1312, the movable clamping plate 1313, the clamping plate driving member 1314 and the fixture moving part 132;
A module blanking mechanism 14;
A side plate feeding part 20;
A side plate feeding mechanism 21, a side plate material box 211, and a box moving part 212;
Side plate material taking mechanism 22, side plate suction part 221, suction component 2211, material taking lifting part 222, material taking lifting mechanism 2221, material taking translation part 223, side plate induction component 224, beam 225 and hanging bracket 226;
A side plate turnover mechanism 23, an adsorption turnover platform 231, a platform rotation part 232, and a platform lifting part 233;
The side plate clamping mechanism 24, the clamping frame 241, the assembly translation part 242, the assembly mounting plate 243, the side plate clamping assembly 244, the first driver 2441, the fixed plate 2442, the clamping jaw 2443, the second driver 2444 and the pressing assembly 245;
A welded portion 30;
a laser mechanism 31, a laser driving mechanism 32, a blowing mechanism 33, a double-layer welding table 34 and a slide rail 35.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention relates to a welding device for side plates of a battery module, which is used for welding side plates of a square-shell lithium battery module on end plates.
Fig. 1 shows an alternative embodiment of a battery module side plate welding apparatus 1, and fig. 1 is a perspective view of the apparatus. As shown in fig. 1, the battery module side plate welding device 1 includes a module loading portion 10, a side plate loading portion 20, and a welding portion 30. Alternatively, the welding part 30 is disposed in the middle, and the module feeding part 10 and the side plate feeding part 20 are disposed at both sides of the welding part 30, respectively.
Wherein: the module loading part 10 is configured to convey the battery module preloaded with the end plates to the welding part 30; the side plate feeding portion 20 is configured to convey the side plate to the welding portion 30 and press-bond the side plate to the end plate; the weld 30 is configured to weld the side plate to the end plate.
The battery module and the side plates are respectively conveyed to the welding part 30 through the module feeding part 10 and the side plate feeding part 20, so that manual feeding is replaced, the production efficiency is improved, and the welding quality is ensured.
Fig. 2 and 3 show an alternative embodiment of the module loading section 10, fig. 2 is a perspective view of the component, and fig. 3 is a front view of the component.
As shown in fig. 2 and 3, the module loading section 10 includes a module loading mechanism 11, a module conveying mechanism 12, and a module conveying mechanism 13. The module feeding mechanism 11 and the module conveying mechanism 13 are positioned below and adjacently arranged; the module carrying mechanism 12 is overhead above the module conveying mechanism 13 through a bracket; the loading level of the module loading mechanism 11 is located outside the coverage area of the support of the module handling mechanism 12, and the unloading level of the module loading mechanism 11 extends below the support of the module handling mechanism 12.
The module loading mechanism 11 is configured to store a battery module to be loaded and clamp the end plate at the end of the battery module; the module handling mechanism 12 is configured to handle the battery module together with the end plate from the module loading mechanism 11 to the module conveying mechanism 13; the module conveying mechanism 13 is configured to fix the battery module and the end plate conveyed by the module conveying mechanism 12 to the welding tool 131, and convey the welding tool 131 to the welding portion 30.
The battery module stored at the module feeding mechanism 11 is conveyed to the module conveying mechanism 13 through the module conveying mechanism 12, so that the mechanical feeding of the battery module is realized, and the feeding efficiency is improved.
As shown in fig. 4, alternatively, the module feeding mechanism 11 includes a module fixing portion 111 and a fixing frame moving portion 112, the module fixing portion 111 is mounted on the fixing frame moving portion 112, and the module fixing portion 111 can translate along the fixing frame moving portion 112 to below the module conveying mechanism 12.
As an alternative embodiment, the module fixing part 111 fixes the battery module and the end plate using a manual work.
One embodiment of the module fixing part 111 includes a fixing frame 1111, at least one pair of baffles 1112, and at least one baffle driver 1113, two baffles 1112 are oppositely installed on the fixing frame 1111, and one of the baffles 1112 is installed on a movable part of the baffle driver 1113. The shutter driving member 1113 generally employs an air cylinder.
The shutter driving member 1113 drives the shutters 1112 mounted on the movable parts thereof to move toward the other shutter 1112, thereby clamping the battery module manually placed between the shutters 1112 and the end plates preloaded at both ends of the battery module, preventing the end plates from falling.
The module fixing part 111 is moved to the lower part of the module carrying mechanism 12 through the fixing frame moving part 112, so that the arrangement of the module feeding mechanism 11 can be facilitated, and the space can be reasonably utilized.
Another embodiment of the module fixing part 111 includes two pairs of baffles 1112 and two baffle driving members 1113, and the two pairs of baffles 1112 are arranged on the fixing frame 1111 at intervals along the same direction. The arrangement direction of the two pairs of the shutters 1112 is generally perpendicular to the moving direction of the mount moving portion 112.
Two pairs of baffles 1112 are arranged to fix two battery modules at the same time, so that the feeding efficiency of the module feeding mechanism 11 is improved.
An alternative embodiment of the holder moving part 112 includes two rails 1121 arranged in parallel, and the holder 1111 of the module fixing part 111 is movably supported on the two rails 1121. The fixed frame moving part 112 can be mechanically driven or manually driven.
As shown in fig. 2 and 3, optionally, the module conveying mechanism 12 includes a conveying clamping portion 121 and a conveying moving portion 122, where the conveying clamping portion 121 is mounted on the conveying moving portion 122, and the conveying moving portion 122 drives the conveying clamping portion 121 to translate from above the module feeding mechanism 11 to above the module conveying mechanism 13.
Alternatively, the carry moving portion 122 includes two guide rails 1221, and the carry gripping portion 121 is movably mounted on the two guide rails 1221.
As an alternative embodiment, the carrying and gripping part 121 includes a clamping jaw assembly 1212 and a lifting assembly 1213, the clamping jaw assembly 1212 is mounted on the lifting assembly 1213, the lifting assembly 1213 drives the clamping jaw assembly 1212 to lift, and the clamping jaw assembly 1212 is used for gripping the battery module and the end plate.
The battery module is clamped by the carrying clamping part 121, and the carrying moving part 122 drives the carrying clamping part 121 to move from the module feeding mechanism 11 to the module conveying mechanism 13, so that the battery module is transferred.
As another alternative embodiment, the carrying and gripping part 121 includes a mounting seat 1211, two sets of clamping jaw assemblies 1212 and two sets of lifting assemblies 1213, the two sets of lifting assemblies 1213 are relatively mounted on the mounting seat 1211, the two sets of clamping jaw assemblies 1212 are respectively mounted on the two sets of lifting assemblies 1213, each set of lifting assemblies 1213 respectively drives the corresponding clamping jaw assembly 1212 to lift, and the two sets of clamping jaw assemblies 1212 are respectively used for gripping the two sets of battery modules and the end plate.
The carrying clamping part 121 adopts two groups of carrying components, the first group of carrying components are used for grabbing the battery module which is not welded at the module feeding mechanism 11, the second group of carrying components are used for grabbing the battery module which is welded at the module conveying mechanism 13, then the two groups of carrying components synchronously move, the first group of carrying components are used for placing the battery module which is not welded on the module conveying mechanism 13, and the second group of carrying components are used for placing the battery module on the module discharging mechanism 14 at the module discharging position.
The carrying and gripping part 121 includes two sets of carrying components, and the two sets of carrying components operate synchronously, so that the carrying efficiency can be improved by times.
As shown in fig. 5-7, optionally, the jaw assembly 1212 includes a back plate 1511, a back plate drive 1512, a barrier bar 1513, and a barrier bar drive 1514, the back plate 1511 being mounted on a movable member of the back plate drive 1512, the barrier bar 1513 being mounted on a movable member of the barrier bar drive 1514; the backup plates 1511 and the blocking strips 1513 are respectively provided with a group, each group of backup plates 1511 and each group of blocking strips 1513 are respectively arranged oppositely, each group of backup plates 1511 is arranged along a first direction, each group of blocking strips 1513 is arranged along a second direction, and the first direction and the second direction are horizontally and vertically crossed. Alternatively, the cam driver 1512 and the barrier driver 1514 are cylinders, respectively.
The clamping jaw assembly 1212 clamps the battery module by using the backup plate 1511, and blocks the end plate by the barrier bar 1513 to prevent the end plate from falling, so that the battery module and the end plate can be clamped stably.
Optionally, each set of backup plates 1511 includes four backup plates, each opposing each other. With four backup plates, the contact area of the backup plates with the battery module can be increased, and the strength and the service life of the clamping jaw assembly 1212 are increased.
Optionally, a detection assembly 1214 is mounted on the clamping jaw assembly 1212, and the detection assembly 1214 is used to detect whether the clamping jaw assembly 1212 is grabbing onto the battery module.
The detection assembly 1214 detects whether the clamping jaw assembly 1212 grabs the battery module, preventing material leakage.
As shown in fig. 2 and 3, optionally, the module conveying mechanism 13 includes a welding tool 131 and a tool moving portion 132, where the welding tool 131 is installed on the tool moving portion 132, and the tool moving portion 132 drives the welding tool 131 to translate. The welding tool 131 fixed with the battery module is moved to a welding station by the tool moving part 132, so that the battery module is transferred.
As shown in fig. 8 and 9, as an alternative embodiment, the welding fixture 131 includes a fixture frame 1311, a fixed clamp 1312, a movable clamp 1313, and a clamp driving unit 1314, the fixed clamp 1312 is fixed to the fixture frame 1311, the movable clamp 1313 is mounted to a movable part of the clamp driving unit 1314, the clamp driving unit 1314 is mounted to the fixture frame 1311, and the clamp driving unit 1314 drives the movable clamp 1313 to move toward the fixed clamp 1312, thereby clamping the battery module.
The welding fixture 131 adopts the structures of a fixed clamping plate 1312 and a movable clamping plate 1313, and has simple structure and easy manufacture.
As another alternative embodiment, the welding tool 131 includes a tool frame 1311, a fixed clamp plate 1312, two movable clamp plates 1313, and two clamp plate driving members 1314, the fixed clamp plate 1312 is fixed on the tool frame 1311, the two movable clamp plates 1313 are respectively located at both sides of the fixed clamp plate 1312 and respectively mounted on the movable parts of the two clamp plate driving members 1314, the two clamp plate driving members 1314 are respectively mounted on the tool frame 1311, and the clamp plate driving members 1314 drive the movable clamp plates 1313 to move toward the fixed clamp plate 1312, thereby clamping the battery module. Alternatively, the clamp plate driving member 1314 employs a motor that drives the movable clamp plates 1313 on both sides to draw close and clamp toward the middle fixed clamp plate 1312.
The welding fixture 131 adopts a structure of a fixed clamping plate 1312 and two movable clamping plates 1313, can clamp two battery modules simultaneously, is clamped and fixed in a centering manner, and can improve production efficiency.
As shown in fig. 2 and 3, the module loading part 10 may further include a module unloading mechanism 14, the module unloading mechanism 14 is mounted at one side of the module conveying mechanism 13, the module conveying mechanism 12 conveys the battery module welded on the module conveying mechanism 13 to the module unloading mechanism 14, and the module unloading mechanism 14 is configured to remove the battery module. Alternatively, the module blanking mechanism 14 may be conveyed by a conveyor line or a slide rail.
By providing the module discharging mechanism 14, the welded battery module can be removed, and the production efficiency can be further improved.
Fig. 10 shows an alternative embodiment of the side plate loading section 20, and fig. 10 is a perspective view of the component.
As shown in fig. 10, the side plate feeding portion 20 includes a side plate feeding mechanism 21, a side plate taking mechanism 22, a side plate turning mechanism 23, and a side plate gripping mechanism 24. Optionally, the side plate material taking mechanism 22 and the side plate turnover mechanism 23 are arranged up and down, the side plate turnover mechanism 23 is arranged below, the side plate material taking mechanism 22 is arranged above, the side plate clamping mechanism 24 is movably arranged between the side plate material taking mechanism 22 and the side plate turnover mechanism 23, and the side plate feeding mechanism 21 is arranged at one side of the side plate material taking mechanism 22.
The side plate feeding mechanism 21 is configured to store a side plate to be fed; the side plate material taking mechanism 22 is configured to carry the side plate from the side plate feeding mechanism 21 to the side plate overturning mechanism 23; the side plate turnover mechanism 23 is configured to horizontally fix the side plate and drive the side plate to turn over to a vertical position; the side plate clamping mechanism 24 is configured to clamp the side plate in the vertical position at the side plate turning mechanism 23, and move the side plate to the welding portion 30, and then press-contact the side plate against the end plate of the battery module located at the welding portion 30.
The side plate material taking mechanism 22 is used for taking materials from the side plate feeding mechanism 21, the side plates are conveyed to the side plate overturning mechanism 23, the side plates are overturned from the horizontal position to the vertical position through the side plate overturning mechanism 23, and the side plates are clamped and pressed on the end plates of the battery modules at the welding positions through the side plate clamping mechanism 24, so that the side plates and the end plates are assembled.
As shown in fig. 11, alternatively, the side plate loading mechanism 21 includes a side plate cassette 211 and a cassette moving portion 212, the side plate cassette 211 is used for storing the side plates, the side plate cassette 211 is mounted on the cassette moving portion 212, and the side plate cassette 211 is translatable along the cassette moving portion 212.
The side plate material box 211 is moved to the material loading position of the side plate material taking mechanism 22 through the material box moving part 212, so that the space arrangement of the side plate material loading mechanism 21 is facilitated, and the space utilization rate is improved.
As an alternative embodiment, the cartridge moving part 212 employs two guide rails arranged in parallel, and the side plate cartridge 211 is movably mounted on the two guide rails. The cartridge moving part 212 may be manual or electric.
Optionally, the side plate magazine 211 may adjust the length of the magazine according to the length of the side plate to accommodate different specifications of side plates.
Alternatively, there are two side-plate cartridges 211 arranged at intervals in a direction perpendicular to the cartridge moving portion 212.
By providing two cartridges, two cartridge side plates can be stored simultaneously, and the material taking efficiency of the side plate material taking mechanism 22 can be improved.
As shown in fig. 12 and 13, optionally, the side plate extracting mechanism 22 includes a side plate extracting portion 221, a material extracting lifting portion 222, and a material extracting translation portion 223, where the side plate extracting portion 221 is installed on the material extracting lifting portion 222, and the material extracting lifting portion 222 is installed on the material extracting translation portion 223. The material taking translation part 223 drives the material taking lifting part 222 to translate and move between the material loading level and the material unloading level of the side plate; the material taking lifting part 222 drives the side plate suction part 221 to lift, and the side plate suction part 221 is used for sucking the side plate.
The side plate is sucked by the side plate sucking part 221, and the space position of the side plate sucking part 221 is moved by the material taking lifting part 222 and the material taking translation part 223, so that the side plate is transferred from the side plate feeding mechanism 21 to the side plate overturning mechanism 23.
Optionally, the side plate extracting mechanism 22 includes two sets of extracting lifting portions 222 and two sets of side plate sucking portions 221, where the two sets of extracting lifting portions 222 are mounted on a beam 225, and the beam 225 is movably mounted on the extracting translation portion 223 through a hanger 226. Each set of material taking lifting part 222 comprises two material taking lifting mechanisms 2221, each set of side plate suction parts 221 comprises two sets of suction components 2211, and each set of suction components 2211 is correspondingly arranged on one material taking lifting mechanism 2221. The take-off and lifting mechanism 2221 is typically a pneumatic cylinder and the take-off assembly 2211 is typically a suction cup.
The side plate material taking mechanism 22 adopts two sets of side plate suction parts 221, so that two side plates can be sucked simultaneously, and the material taking efficiency is improved; each set of side plate suction parts 221 adopts two groups of suction components 2211, and can also suck two side plates at the same time, so that the material taking efficiency can be further improved.
Optionally, the side plate extracting mechanism 22 further includes a side plate sensing component 224, where the side plate sensing component 224 is mounted on the side plate sucking portion 221, and is used for sensing whether the side plate sucking portion 221 sucks the side plate.
Whether the side plate is sucked on the side plate suction part 221 is sensed by the side plate sensing assembly 224, so that the working accuracy of the side plate material taking mechanism 22 can be ensured, and material leakage is prevented.
As shown in fig. 14 and 15, alternatively, the side plate tilting mechanism 23 includes an adsorption tilting platform 231, a platform rotating portion 232, and a platform lifting portion 233, the adsorption tilting platform 231 is mounted on the platform rotating portion 232, and the platform rotating portion 232 is mounted on the platform lifting portion 233. The platform lifting part 233 drives the platform rotating part 232 to lift, the platform rotating part 232 drives the adsorption turnover platform 231 to turn over, and the adsorption turnover platform 231 is used for adsorbing the side plates. The adsorption overturning platform 231 is in butt joint with the side plate feeding mechanism 21 in the horizontal position and in butt joint with the side plate clamping mechanism 24 in the vertical position.
The side plates are adsorbed by the adsorption and overturning platform 231 and are overturned from the horizontal position to the vertical position by the platform rotating part 232, so that the side plates are ensured to be positioned at the correct welding positions, and the side plates are lifted to the welding positions by the platform lifting part 233, so that the correct feeding of the side plates is realized.
Alternatively, the platform rotation part 232 includes a rotation shaft and a rotation cylinder. The adsorption turnover platform 231 is fixedly installed on a rotating shaft, and the rotating shaft controls rotation thereof through a rotary cylinder.
The rotary cylinder of the platform rotary part 232 drives the rotary shaft to rotate, and the rotary shaft is simple in structure, convenient to manufacture and install and low in cost.
Alternatively, there are two sets of the adsorption flip platforms 231 spaced apart along the rotation axis of the platform rotation portion 232.
Two side plates can be simultaneously processed through the two groups of adsorption turnover platforms 231, so that the clamping efficiency of the side plate clamping mechanism 24 can be improved.
Alternatively, the platform raising and lowering portion 233 is driven by a motor or an air cylinder or the like.
As shown in fig. 16, the side plate gripping mechanism 24 optionally includes a gripping frame 241, a component translating portion 242, a component mounting plate 243, a side plate gripping assembly 244, and a hold down assembly 245. The side plate gripping mechanism 24 is configured with two positions, a loading position and a welding position.
The side plate clamping assembly 244 and the pressing assembly 245 are both mounted on the assembly mounting plate 243, and the pressing assembly 245 is located at one side of the side plate clamping assembly 244; optionally, compression assemblies 245 are mounted on both sides of the side plate clamping assembly 244. The component mounting plate 243 is mounted on the movable member of the component translating portion 242, and the component translating portion 242 is mounted on the gripping frame 241. Alternatively, the assembly translation 242 employs an air cylinder.
The side plate clamping assembly 244 is used for clamping the side plates, the compressing assembly 245 is used for compressing the side plates on the battery module, and the assembly translation part 242 drives the side plate clamping assembly 244 to translate with the compressing assembly 245.
The side plate clamping mechanism 24 clamps the side plates through the side plate clamping assembly 244, and the side plates are pressed on the end plates through the pressing assembly 245, so that the preparation work of the side plates before welding is realized.
Optionally, the side plate clamping assembly 244 includes a first driver 2441, a fixed plate 2442 and a clamping jaw 2443, the clamping jaw 2443 is mounted on the first driver 2441, and the first driver 2441 drives the clamping jaw 2443 to clamp the side plate between the clamping jaw 2443 and the fixed plate 2442 along a vertical direction. The clamping jaw 2443 clamps the lower side of the side plate from below, and the upper side of the side plate is clamped against the upper side of the fixing plate 2442.
The side plate clamping assembly 244 drives the clamping jaw 2443 through the first driver 2441 to clamp the side plate between the clamping jaw 2443 and the fixing plate 2442, so that clamping of the side plate is achieved.
Optionally, the side panel clamping assembly 244 further includes a second driver 2444, the second driver 2444 is mounted between the assembly mounting plate 243 and the first driver 2441, and the first driver 2441 is mounted on a movable component of the second driver 2444. Second driver 2444 drives first driver 2441 to move horizontally.
The second driver 2444 is used to individually control the back and forth movement of the clamping jaw 2443 so that the side plate can be better mounted on the battery module.
Alternatively, the first driver 2441 and the second driver 2444 each employ an air cylinder.
Optionally, the compressing assembly 245 includes a pressing block and a mounting frame, the mounting frame is mounted below the assembly mounting plate 243, and the pressing block is mounted on a side wall of the mounting frame.
As shown in fig. 10, the operation flow of the side plate loading section 20 is as follows:
1. At the end of the side plate feeding mechanism 21 far away from the side plate material taking mechanism 22, firstly, manually loading the side plate into the side plate material box 211 (namely feeding, material well), and then, moving the side plate material box 211 to the end close to the side plate material taking mechanism 22 along the material box moving part 212, namely, the material loading position of the side plate material taking mechanism 22;
2. The side plate material taking mechanism 22 acts to absorb the side plates in the side plate material box 211 and moves to the position above the side plate overturning mechanism 23;
3. The side plate overturning mechanism 23 ascends to the feeding level, the adsorption overturning platform 231 is in butt joint with the side plate taking mechanism 22, and the side plate is transferred to the adsorption overturning platform 231;
4. the side plate clamping mechanism 24 moves to the upper side of the side plate turnover mechanism 23, the side plate turnover mechanism 23 rises to the discharging position, the adsorption turnover platform 231 is in butt joint with the side plate clamping assembly 244 on the side plate clamping mechanism 24, and the side plate is transferred to the side plate clamping assembly 244.
Fig. 18 shows an alternative embodiment of the weld 30, and fig. 18 is a perspective view of the component.
As shown in fig. 18, the welding portion 30 includes a laser mechanism 31 and a laser driving mechanism 32, the laser mechanism 31 is mounted on the laser driving mechanism 32, the laser driving mechanism 32 drives the laser mechanism 31 to move arbitrarily in space, and the laser mechanism 31 is used for welding the side plate and the end plate. The laser mechanism 31 and the laser driving mechanism 32 may be of any structure in the prior art.
The laser driving mechanism 32 drives the laser mechanism 31 to move at random in space, so that the laser mechanism 31 can reach a welding position, and the welding of the side plates is realized.
Optionally, the welding part 30 further includes a blowing mechanism 33, and the blowing mechanism 33 is installed on the laser mechanism 31 to prevent welding scraps from damaging the laser. The blowing mechanism 33 may be of any structure in the prior art.
As shown in fig. 1, the weld 30 optionally further includes a double-layer weld station 34. As shown in fig. 19 and 20, a slide rail 35 extending to the side plate loading portion 20 is attached to each layer of the double-layer bonding stage 34, and the side plate gripping mechanism 24 is movable along the slide rail 35. The side plate gripping mechanism 24 is provided on the slide rail 35 and is movable between a side plate loading position and a welding position. In the welding, the welding tool 131 is disposed corresponding to the side plate clamping mechanism 24.
The double-layer welding table 34 realizes quick feeding, so that the welding part 30 can be welded uninterruptedly, and the welding efficiency is improved.
The invention has been described above in sufficient detail with a certain degree of particularity. It will be appreciated by those of ordinary skill in the art that the descriptions of the embodiments are merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is indicated by the appended claims rather than by the foregoing description of the embodiments.

Claims (7)

1. The welding device for the side plates of the battery module is characterized by comprising a module feeding part, a side plate feeding part and a welding part; wherein:
The module feeding part is configured to convey the battery module preloaded with the end plate to the welding part;
The side plate feeding part is configured to convey the side plate to the welding part and press-connect the side plate to the end plate;
the welding portion is configured to weld the side plate to the end plate;
The module feeding part comprises a module feeding mechanism, a module carrying mechanism and a module conveying mechanism;
The module feeding mechanism is configured to store the battery module to be fed and clamp the end plate at the end part of the battery module;
The module handling mechanism is configured to handle the battery module together with the end plate from the module loading mechanism to the module conveying mechanism;
The module conveying mechanism is configured to fix the battery module and the end plate conveyed by the module conveying mechanism to a welding tool and convey the welding tool to the welding part;
the side plate feeding part comprises a side plate feeding mechanism, a side plate material taking mechanism, a side plate overturning mechanism and a side plate clamping mechanism;
the side plate feeding mechanism is configured to store the side plates to be fed;
The side plate material taking mechanism is configured to convey the side plate from the side plate feeding mechanism to the side plate overturning mechanism;
The side plate overturning mechanism is configured to horizontally fix the side plate and drive the side plate to overturn to a vertical position;
The side plate clamping mechanism is configured to clamp the side plate at the vertical position of the side plate turnover mechanism, move the side plate to the welding part and press-connect the side plate to the end plate of the battery module at the welding part;
The welding part comprises a laser mechanism and a laser driving mechanism, wherein the laser mechanism is arranged on the laser driving mechanism, the laser driving mechanism drives the laser mechanism to move at random in space, and the laser mechanism is used for welding the side plates and the end plates.
2. The battery module side plate welding device according to claim 1, wherein the module carrying mechanism comprises a carrying clamping part and a carrying moving part, the carrying clamping part is mounted on the carrying moving part, and the carrying moving part drives the carrying clamping part to translate from above the module feeding mechanism to above the module conveying mechanism;
The carrying clamping part comprises a clamping jaw assembly and a lifting assembly, the clamping jaw assembly is arranged on the lifting assembly, the lifting assembly drives the clamping jaw assembly to lift, and the clamping jaw assembly is used for clamping the battery module and the end plate;
or the carrying clamping part comprises a mounting seat, two groups of clamping jaw assemblies and two groups of lifting assemblies, wherein the two groups of lifting assemblies are relatively arranged on the mounting seat, the two groups of clamping jaw assemblies are respectively arranged on the two groups of lifting assemblies, each group of lifting assemblies respectively drive the corresponding clamping jaw assemblies to lift, and the two groups of clamping jaw assemblies are respectively used for clamping the two groups of battery modules and the end plates.
3. The welding device for the side plates of the battery module according to claim 1, wherein the module conveying mechanism comprises a welding tool and a tool moving part, the welding tool is arranged on the tool moving part, and the tool moving part drives the welding tool to translate;
The welding tool comprises a tool frame, a fixed clamping plate, a movable clamping plate and a clamping plate driving piece, wherein the fixed clamping plate is fixed on the tool frame, the movable clamping plate is arranged on a movable part of the clamping plate driving piece, and the clamping plate driving piece is arranged on the tool frame;
Or the welding tool comprises a tool frame, a fixed clamping plate, two movable clamping plates and two clamping plate driving parts, wherein the fixed clamping plate is fixed on the tool frame, the two movable clamping plates are respectively positioned at two sides of the fixed clamping plate and are respectively arranged on the movable parts of the two clamping plate driving parts, and the two clamping plate driving parts are respectively arranged on the tool frame;
the clamping plate driving piece drives the movable clamping plate to move towards the fixed clamping plate, so that the battery module is clamped.
4. The battery module side plate welding device according to claim 1, wherein the side plate material taking mechanism comprises a side plate suction part, a material taking lifting part and a material taking translation part; the side plate suction part is arranged on the material taking lifting part, and the material taking lifting part is arranged on the material taking translation part; the material taking translation part drives the material taking lifting part to translate, the material taking lifting part drives the side plate suction part to lift, and the side plate suction part is used for sucking the side plate.
5. The battery module side plate welding device according to claim 1, wherein the side plate turning mechanism includes an adsorption turning platform, a platform rotating part, and a platform lifting part, the adsorption turning platform is mounted on the platform rotating part, and the platform rotating part is mounted on the platform lifting part; the platform lifting part drives the platform rotating part to lift, the platform rotating part drives the adsorption overturning platform to overturn, and the adsorption overturning platform is used for adsorbing the side plates.
6. The battery module side plate welding apparatus according to claim 1, wherein the side plate clamping mechanism comprises a clamping frame, a component translation part, a component mounting plate, a side plate clamping component and a pressing component; the side plate clamping assembly and the pressing assembly are both arranged on the assembly mounting plate, the pressing assembly is positioned on one side of the side plate clamping assembly, the assembly mounting plate is arranged on the movable part of the assembly translation part, and the assembly translation part is arranged on the clamping frame; the side plate clamping component is used for clamping the side plate, the compressing component is used for compressing the side plate on the battery module, and the component translation part drives the side plate clamping component to translate with the compressing component.
7. The battery module side plate welding device according to claim 1, wherein the welding portion further comprises a double-layer welding table, and a slide rail extending to the side plate feeding portion is mounted on each layer of the double-layer welding table.
CN202110728946.XA 2021-06-29 2021-06-29 Welding device for battery module side plate Active CN113427127B (en)

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CN215468824U (en) * 2021-06-29 2022-01-11 无锡奥特维智能装备有限公司 Battery module curb plate welding set

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CN107262954B (en) * 2017-08-14 2023-02-28 东莞市益诚自动化设备有限公司 Battery welding machine
KR102090514B1 (en) * 2018-03-09 2020-03-18 엘지전자 주식회사 Solar cell soldering apparatus
CN109773390B (en) * 2019-01-30 2025-01-17 无锡奥特维智能装备有限公司 Battery module package lid welding set

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