CN115319361A - Lithium battery pack electrode column horizontal welding device and method - Google Patents
Lithium battery pack electrode column horizontal welding device and method Download PDFInfo
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- CN115319361A CN115319361A CN202211269048.3A CN202211269048A CN115319361A CN 115319361 A CN115319361 A CN 115319361A CN 202211269048 A CN202211269048 A CN 202211269048A CN 115319361 A CN115319361 A CN 115319361A
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0247—Driving means
-
- 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 to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a horizontal welding device and method for an electrode column of a lithium battery pack, and relates to the technical field of processing and manufacturing of lithium batteries. In the invention: the upper side of the base frame plate is provided with an assembly base and clamping components positioned on the two sides of the assembly base, and the bottom of the base frame plate is embedded with a base lifting device used for driving the assembly base to vertically lift. And a welding positioning assembly is arranged at the upper side of the vertical fixing frame. The material box is fixedly arranged on the top side surface of the base frame plate. The area above the welding positioning assembly is provided with a station guide mechanism and a material taking assembly and a welding assembly which move on the station guide mechanism in a directional mode, the material taking assembly comprises a second linear motor which is installed on the station guide mechanism in a matched mode, and the welding assembly comprises a third linear motor which is installed on the station guide mechanism in a matched mode. The invention improves the automation level of lithium battery welding, ensures the positive contact of the nickel strips and the single electrodes of the lithium battery, and improves the welding efficiency and quality of the lithium battery pack.
Description
Technical Field
The invention relates to the technical field of lithium battery processing and manufacturing, in particular to a device and a method for horizontally welding an electrode column of a lithium battery pack.
Background
In the series-parallel connection welding process of the lithium battery monomer, nickel bars need to be welded on a lithium battery pack structure which is placed orderly. Most factories still finish the welding of the nickel strips on the lithium battery mainly through manual operation and the assistance of semi-automatic welding equipment. The welding mode increases the manpower input, and meanwhile, when in welding, the nickel strip is positioned at the position of the single lithium battery electrode, whether the nickel strip is in the right position or not, and the integral welding quality is also influenced.
To sum up, further promote lithium cell welding automation level, guarantee the "normal position" contact of nickel strip and lithium cell monomer electrode simultaneously, be the important link that improves lithium cell group welding efficiency, quality.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a horizontal welding device and method for an electrode column of a lithium battery pack, so that the automation level of lithium battery welding is improved, the positive contact between a nickel strip and a single electrode of the lithium battery is ensured, and the welding efficiency and quality of the lithium battery pack are improved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a horizontal welding device for an electrode column of a lithium battery pack. The standing groove has been seted up to the equipment base station, and a plurality of slots that sink that are used for pegging graft lithium cell monomer are seted up to the standing groove tank bottom surface. The clamping assembly comprises a first linear motor and a positioning motor, the first linear motor is installed at the position of the transverse moving foundation trench in a guiding mode, the first linear motor is fixedly connected with a first supporting frame and a motor installation frame, the positioning motor is fixedly installed at the position of the motor installation frame, and the output end of the positioning motor is connected with a clamping frame plate of a U-shaped structure. The vertical mount of basement frame plate both sides fixed mounting, welding position subassembly is installed to vertical mount upside position, welding position subassembly includes a set of direction horizontal pole, direction horizontal pole and vertical mount fixed connection, fixed connection motor mount between a set of direction horizontal pole, motor mount intermediate position fixed mounting fixed position linear electric motor, slidable mounting location deckle board between a set of direction horizontal pole, the deckle board is equipped with a plurality of parallel arrangement's wide-mouth bar groove, the downward strip constant head tank that sinks that link up is seted up to wide-mouth bar tank bottom portion, deckle board one side fixed connection motion axostylus axostyle, the motion axostylus axostyle is connected with the cooperation of fixed position linear electric motor. The material box is fixedly mounted on the top side face of the base frame plate, the material box comprises a bottom cavity and a plurality of storage bar grooves located above the bottom cavity, a propelling frame is configured in the material box, the propelling frame comprises a propelling bottom connecting rod and a plurality of propelling vertical rods located on the upside of the propelling bottom connecting rod, propelling support bars movably inserted into the storage bar grooves are arranged on the top side of the propelling vertical rods, and the base frame plate is configured with a material lifting driving device used for driving the propelling frame to vertically lift. Welding position subassembly top region disposes station guiding mechanism and the material subassembly of getting of directional removal on station guiding mechanism, the welding subassembly, it installs the second linear electric motor on station guiding mechanism including the cooperation to get the material subassembly, second linear electric motor downside fixed connection gets material elevating gear, it connects the material frame of getting to get the material elevating gear drive, the material frame of getting has set up the multiunit and has got material branch, it all disposes electric chuck to get material branch end position, the welding subassembly includes the cooperation and installs the third linear electric motor on station guiding mechanism, third linear electric motor downside fixed connection welding elevating gear, a welding slat is connected in the welding elevating gear drive, a plurality of soldered connections are installed to welding slat bottom side.
As a preferred technical scheme of the welding device in the invention: the lifting base groove is formed in the top side face of the base frame plate and located between the two transverse moving base grooves, the assembling base platform is movably installed at the position of the lifting base groove, a first lifting shaft rod is arranged at the output end of the base lifting device, and the first lifting shaft rod is fixedly connected with the bottom side face of the assembling base platform.
As a preferred technical scheme of the welding device of the invention: a transverse moving shaft rod is arranged in the transverse moving base groove, and the first linear motor is matched and arranged at the position of the transverse moving shaft rod.
As a preferred technical scheme of the welding device of the invention: the output end of the positioning motor is connected with the rotating shaft rod, the clamping frame plate is fixedly connected with the tail end of the rotating shaft rod, an extrusion rubber pad in extrusion contact with the lithium battery monomer is arranged on the inner side of the clamping frame plate, and a contact fillet is arranged at the front side end of the clamping frame plate.
As a preferred technical scheme of the welding device in the invention: the side opening size of the wide-mouth strip-shaped groove is larger than the opening width size of the sinking strip-shaped positioning groove, and the two sides of the positioning frame plate are provided with edge position guide notches matched with the guide transverse rods.
As a preferred technical scheme of the welding device of the invention: the output end of the material lifting driving device is connected with a material lifting shaft lever, and the material lifting shaft lever is fixedly connected with the bottom side surface of the propelling frame; the output end of the material taking lifting device is connected with a material taking lifting shaft rod, and the material taking lifting shaft rod is fixedly connected with the top side surface of the material taking frame; the output end of the welding lifting device is connected with a welding lifting shaft rod, and the welding lifting shaft rod is fixedly connected with the top side surface of the welding batten.
As a preferred technical scheme of the welding device in the invention: the width dimension of the welding head is smaller than the opening width dimension of the sinking strip-shaped positioning groove; setting the longitudinal height of the welding head as Hb, setting the sum of the groove depths of the wide-mouth strip-shaped groove and the sinking strip-shaped positioning groove as Db, and setting the thickness of the nickel strip placed in the sinking strip-shaped positioning groove as Dc, then Hb > = Db-Dc.
The invention provides a horizontal welding method for an electrode column of a lithium battery pack, which comprises the following steps:
(1) Placing the lithium battery monomer in an initial supporting mode: inserting a plurality of lithium battery monomers into the sinking slot positions of the assembly base station according to a certain position sequence through a manual or mechanical arm;
(2) The positioning frame plate is matched and positioned: after the lithium battery monomer is placed, the fixed-position linear motor is started, the moving shaft rod moves relatively, the positioning frame plate is driven to move transversely to the area right above the lithium battery monomer inserted on the assembling base platform, and then the base lifting device pushes the assembling base platform to lift for a certain distance;
(3) The lithium battery is clamped and fixed: the first linear motor drives the position adjusting motor and the clamping frame plates to transversely move towards the direction of the lithium battery monomer, and the clamping frame plates on the two sides firmly clamp all the lithium battery monomers inserted on the assembling base station;
(4) Taking and placing nickel strips: the material taking assembly takes out the nickel strip at the uppermost layer position of the material box from the material box and places the nickel strip taken out at the position of the blank sinking strip-shaped positioning groove; after the nickel strip at the uppermost layer of the material box is taken away by the material taking assembly, the material lifting driving device drives the pushing frame to ascend by a distance of the thickness of the nickel strip;
(5) Electrode welding: after nickel strips are placed in the sinking strip-shaped positioning grooves of the positioning frame plate, the welding assembly moves to the position of a first group of welding points of the lithium battery monomer, the welding lifting device pushes the welding head downwards to be inserted into the sinking strip-shaped positioning grooves, and after the nickel strips in the sinking strip-shaped positioning grooves are pressed, the welding head welds the current welding position; after the first group of welding point positions are welded, the welding head is lifted for a certain distance, the third linear motor moves gradually to drive the welding head to move right above the position to be welded, and the welding head is pushed down through the welding lifting device to complete the welding of the subsequent welding position;
(6) And (3) overturning welding: after series connection welding is accomplished to a current electrode position of lithium cell group, basement elevating gear drives the equipment base station and moves down the certain distance, the locating frame board returns to initial position, the motor of positioning drives the lithium cell group and rotates 180 degrees, then the locating frame board gets back to the lithium cell group directly over the region again, basement elevating gear drives the equipment base station and rises the certain distance, the standing groove of equipment base station carries out the screens to the lithium cell group and supports, repetition (4) nickel strip is got the material, place and the operation in the electrode welding (5).
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the lithium battery monomer is initially supported and overturned and welded by the substrate lifting device and the assembling base station, and the lithium battery monomer is clamped and positioned by the clamping assembly, so that the stability of the lithium battery monomer in the welding process is ensured, the nickel strips are placed and welded by the welding positioning assembly, and the intelligent and linked control and coordination of the material taking assembly, the material taking box, the welding assembly and other mechanisms greatly improve the automation level of the lithium battery welding, ensure the positive contact of the nickel strips and the electrodes of the lithium battery monomer, and improve the welding efficiency and quality of the lithium battery pack.
Drawings
Fig. 1 is a schematic view of the overall structure of a horizontal welding apparatus for an electrode column of a lithium battery pack according to the present invention.
Fig. 2 is a schematic (top view) structural view of the assembled base according to the present invention.
Fig. 3 is a schematic top view of the clamping assembly of the present invention in cooperation with a lithium battery.
Fig. 4 is a (side) schematic view of a weld positioning assembly of the present invention.
Fig. 5 is a (top) view of the weld positioning assembly of the present invention.
Fig. 6 is a (cross-sectional) schematic view of a positioning bezel in accordance with the present invention.
Fig. 7 is a schematic (top view) of the material box of the present invention.
Figure 8 is a schematic (cross-sectional) view of a material cassette according to the present invention.
Fig. 9 is a (cross-sectional) schematic view of a propulsion frame according to the present invention.
Fig. 10 is a schematic view (bottom view) of the material taking frame of the present invention.
FIG. 11 is a schematic view (bottom view) of the weld bar of the present invention.
Fig. 12 is a schematic diagram of a lithium battery cell.
Fig. 13 is a schematic structural view of a positioning frame plate used in parallel welding of lithium battery packs.
Description of reference numerals:
1-a base frame plate, 101-a lifting base groove, 102-a traversing base groove, 103-a traversing shaft lever and 104-a vertical fixing frame; 2-a substrate lifting device, 201-a first lifting shaft; 3-assembling a base platform, 301-placing grooves and 302-sinking slots; 4-clamping component, 401-first linear motor, 402-first support frame, 403-motor mounting frame, 404-positioning motor, 405-rotating shaft rod, 406-clamping frame plate, 4061-extrusion rubber pad and 4062-contact fillet; 5-welding positioning component, 501-guiding cross bar, 502-motor fixing frame, 503-positioning frame plate, 5031-wide-mouth strip-shaped groove, 5032-sinking strip-shaped positioning groove, 5033-edge position guiding notch, 504-moving shaft lever and 505-fixed position linear motor; 6-a material box, 601-a bottom cavity, 602-a material storage strip-shaped groove; 7-nickel strips; 8-material lifting driving device, 801-material lifting shaft lever; 9-pushing a frame, 901-pushing a bottom connecting rod, 902-pushing a vertical rod and 903-pushing a supporting strip plate; 10-a station guide mechanism; 11-material taking assembly, 1101-second linear motor, 1102-material taking lifting device, 1103-material taking lifting shaft lever, 1104-material taking frame, 1105-material taking support rod and 1106-electric suction cup; 12-welding assembly, 1201-third linear motor, 1202-welding lifting device, 1203-welding lifting shaft, 1204-welding strip plate, 1205-welding head; 13-lithium battery monomer, 1301-lithium battery positive electrode and 1302-lithium battery negative electrode; 14-positioning grooves are placed in parallel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1, a lifting base groove 101 and two transverse moving base grooves 102 are formed in the top side of a base frame plate 1, the lifting base groove 101 is located between the two transverse moving base grooves 102, an assembling base platform 3 is movably mounted at the position of the lifting base groove 101, the assembling base platform 3 is provided with a placing groove 301 and a plurality of sinking slots 302, the sinking slots 302 are located on the bottom surface of the placing groove 301, and the sinking slots 302 are used for inserting lithium battery cells 13.
The bottom of the base frame plate 1 is embedded with a base lifting device 2, the base lifting device 2 is used for driving the assembling base station 3 to vertically lift, wherein the base lifting device 2 comprises a first lifting shaft rod 201 of an output end, and the first lifting shaft rod 201 is fixedly connected with the bottom side surface of the assembling base station 3.
Two clamping components 4 are arranged on the upper side of the base frame plate 1, the clamping components 4 are located on the positions of two sides of the assembly base station 3, and each clamping component 4 comprises a first linear motor 401, a first support frame 402, a motor installation frame 403, a positioning motor 404, a rotating shaft rod 405 and a clamping frame plate 406. The traversing shaft rod 103 is fixedly arranged at the position of the traversing base groove 102, and the first linear motor 401 is arranged at the position of the traversing shaft rod 103 in a matching way. The first support frame 402 is fixedly connected with the first linear motor 401, the motor mounting frame 403 is fixedly connected with the first support frame 402, the positioning motor 404 is fixedly mounted at the position of the motor mounting frame 403, the positioning motor 404 comprises a rotating shaft rod 405 at an output end, and the clamping frame plate 406 is fixedly connected with the side end of the rotating shaft rod 405.
A positioning frame plate 503 horizontally driven and moved is disposed above the clamp unit 4, and the moving shaft 504 moves with the positioning frame plate 503.
The material box 6 is fixedly installed on the top side of the base frame plate 1, the base frame plate 1 is provided with a material lifting driving device 8, and the material lifting driving device 8 is used for driving the propulsion frame 9 to vertically lift. The propelling frame 9 comprises a propelling bottom connecting rod 901 and a propelling vertical rod 902, wherein the propelling vertical rods 902 are positioned on the upper side of the propelling bottom connecting rod 901, a propelling supporting strip 903 is arranged on the top side of the propelling vertical rod 902, and the propelling supporting strip 903 is movably inserted into the storage strip groove 602 (see fig. 7 and 8).
5 upper area disposes station guiding mechanism 10, gets material subassembly 11, welding subassembly 12 of welding position subassembly, gets material subassembly 11, welding subassembly 12 directional removal on station guiding mechanism 10. The material taking assembly 11 comprises a second linear motor 1101, the second linear motor 1101 is installed on the station guide mechanism 10 in a matching manner, the second linear motor 1101 moves on the station guide mechanism 10 in a directional manner, a material taking lifting device 1102 is fixedly connected to the lower side of the second linear motor 1101, the output end of the material taking lifting device 1102 faces downwards and is provided with a material taking lifting shaft 1103, and the material taking lifting shaft 1103 is connected with a material taking frame 1104 (see fig. 10) and a corresponding material taking structure.
The welding assembly 12 comprises a third linear motor 1201, the third linear motor 1201 is installed on the station guide mechanism 10 in a matching mode, the third linear motor 1201 moves on the station guide mechanism 10 in a directional mode, the lower side of the third linear motor 1201 is fixedly connected with a welding lifting device 1202, the output end of the welding lifting device 1202 is connected with a welding lifting shaft 1203, the welding lifting shaft 1203 is fixedly connected with the top side face of a welding strip plate 1204, and a welding head 1205 is located at the bottom side position of the welding strip plate 1204.
Referring to fig. 2, the bottom surface of the placement groove 301 is provided with a plurality of sinking slots 302, the single lithium battery cells 13 are inserted into the sinking slots 302, the sinking slots 302 are circular (in a top view), and the adjacent sinking slots 302 are communicated with each other (or the adjacent sinking slots 302 are tangent to each other in the circular structure, and the connecting positions of the adjacent sinking slots 302 have a certain thickness and are visually communicated with each other).
Referring to fig. 3, the locking bezel 406 (viewed from above) is U-shaped. The output end of the positioning motor 404 (see fig. 1) is connected to the rotating shaft 405, the end of the rotating shaft 405 is fixedly connected to the clamping frame 406, an extrusion rubber pad 4061 is disposed on the inner side of the clamping frame 406, the extrusion rubber pad 4061 is in compression contact with the single lithium battery cell 13, and a contact fillet 4062 is disposed at the front side end of the clamping frame 406.
Referring to fig. 4, vertical fixing frames 104 are fixedly installed on two sides of a base frame plate 1, a welding positioning assembly 5 is installed on the upper side of the vertical fixing frame 104, the welding positioning assembly 5 includes a set of guide cross bars 501, and the guide cross bars 501 are fixedly connected with the vertical fixing frame 104.
Referring to fig. 5, a motor fixing frame 502 is fixedly connected between a set of guide rails 501, a fixed-position linear motor 505 is fixedly installed in the middle of the motor fixing frame 502, a positioning frame plate 503 is slidably installed between the set of guide rails 501, a moving shaft 504 is fixedly connected to one side of the positioning frame plate 503, the moving shaft 504 is connected to the fixed-position linear motor 505 in a matching manner, after the fixed-position linear motor 505 is started, the fixed-position linear motor 505 is stationary, and the moving shaft 504 drives the positioning frame plate 503 to move horizontally.
Referring to fig. 5 and 6, the positioning frame plate 503 has a plurality of wide-mouth grooves 5031, the wide-mouth grooves 5031 are arranged in parallel, a sinking strip positioning groove 5032 is arranged at the bottom of the wide-mouth grooves 5031, and the sinking strip positioning groove 5032 penetrates downward.
The width of the upper opening of the wide-mouth strip-shaped groove 5031 is greater than the width of the lower opening of the sinking strip-shaped positioning groove 5032, edge guiding notches 5033 are formed at two sides of the positioning frame plate 503, and the edge guiding notches 5033 are matched with the guiding cross bar 501, so that the positioning frame plate 503 can move on the guiding cross bar 501 in a directional manner.
Referring to fig. 7 and 8, the material box 6 includes a bottom cavity 601 and a plurality of material storage stripe grooves 602, and the plurality of material storage stripe grooves 602 are located above the bottom cavity 601.
Referring to fig. 1 and 9, the output end of the material lifting driving device 8 is connected to a material lifting shaft 801, the material lifting shaft 801 is fixedly connected to the bottom side of the pushing frame 9, and the pushing vertical rod 902 and the pushing support slat 903 are movably inserted into the material storage strip groove 602 (see fig. 7 and 8).
Referring to fig. 1 and 10, the material taking lifting device 1102 is connected to the material taking frame 1104 in a driving manner, the material taking frame 1104 is provided with a plurality of groups of material taking bars 1105, and the tail ends of the material taking bars 1105 are provided with electric suction cups 1106.
Referring to fig. 11, as a structural feature of the welding slat 1204 seen from the bottom side, the welding lifting shaft 1203 is fixedly connected to the top side of the welding slat 1204, a plurality of welding heads 1205 are installed on the bottom side of the welding slat 1204, and the welding heads 1205 can be inserted into the wide-mouth groove 5031 and the sinking-strip positioning groove 5032 (see fig. 6).
The width of the welding head 1205 is smaller than the opening width of the sinking bar-shaped positioning groove 5032 (see fig. 6), the longitudinal height of the welding head 1205 is Hb, the sum of the groove depths of the wide-mouth bar-shaped groove 5031 (see fig. 6) and the sinking bar-shaped positioning groove 5032 is Db, and the thickness of the nickel bar 7 placed in the sinking bar-shaped positioning groove 5032 is Dc, then Hb > = Db-Dc.
Referring to fig. 12, the lithium battery cell 13 includes a lithium battery positive electrode 1301 and a lithium battery negative electrode 1302, and when initially placing, the lithium battery positive electrode 1301 may be first turned upward, and the end of the lithium battery negative electrode 1302 may be inserted into the placing groove 301 (see fig. 1).
Example two
The invention relates to a horizontal welding method for an electrode column of a lithium battery pack, which mainly comprises the steps of initial support placement of a lithium battery monomer 13, matching and positioning of a positioning frame plate, clamping and fixing of a lithium battery, material taking placement of a nickel strip 7, electrode welding, turnover welding and the like, and specifically comprises the following steps:
(1) The lithium battery monomer 13 is initially supported and placed: the lithium battery cells 13 are inserted into the sinking slots 302 of the assembly base 3 in sequence according to a certain position by a human or a mechanical hand.
(2) The positioning frame plate is matched and positioned: after the lithium battery monomer 13 is placed, the fixed-position linear motor 505 is started, the moving shaft 504 moves relatively, and the positioning frame plate 503 is driven to move transversely to the region right above the lithium battery monomer 13 inserted on the assembling base platform 3, and then the substrate lifting device 2 pushes the assembling base platform 3 to ascend by a certain distance, so that the upper end of the lithium battery monomer 13 is in contact with the positioning frame plate).
(3) The lithium battery is clamped and fixed: the first linear motor 401 drives the positioning motor 404 and the clamping frame plates 406 to move laterally toward the lithium battery cells 13, the clamping frame plates 406 at two sides firmly clamp all the lithium battery cells 13 inserted on the assembly base 3, and the clamping frame plates 406 are preferably clamped at the middle position of the lithium battery cells 13.
(4) Taking and placing the nickel strip 7: the material taking assembly 11 takes out the nickel strip 7 located at the uppermost layer of the material box 6 from the material box 6, and places the nickel strip 7 taken out at the position of the blank sinking strip-shaped positioning groove 5032 (the blank sinking strip-shaped positioning groove 5032 is the sinking strip-shaped positioning groove 5032 where the nickel strip 7 is not placed). After the nickel strip 7 at the uppermost layer of the material box 6 is taken away by the material taking assembly, the material lifting driving device 8 drives the pushing frame 9 to ascend by the thickness of the nickel strip 7 (the blank position where the nickel strip 7 is taken away is filled).
(5) Electrode welding: after the nickel strips 7 are placed in the sinking strip-shaped positioning grooves 5032 of the positioning frame plate 503, the welding assembly 12 moves to the first group of welding point positions of the lithium battery cells 13 (the first group of welding point positions W1 are positions to be welded by the multiple lithium battery cells 13 in the same column direction as shown in fig. 5, and as the position of a small dotted circle in the figure, the positions to be welded by the multiple lithium battery cells 13 in the following column directions are the second group of welding point positions W2 and the third group of welding point positions W3), the welding lifting device 1202 pushes the welding head 1205 downwards to insert into the sinking strip-shaped positioning grooves 5032, and after the nickel strips 7 in the sinking strip-shaped positioning grooves 5032 are pressed, the welding head 1205 welds the current welding position. After the first group of welding point positions are welded, the welding head 1205 rises for a certain distance (the distance can be very small, and the welding head 1205 is not rubbed with the nickel bar 7), the third linear motor 1201 moves step by step to drive the welding head 1205 to move right above the position to be welded, and the welding head 1205 is pushed down by the welding lifting device 1202 to complete the welding of the subsequent welding position.
(6) And (3) overturning welding: after the series welding of the current electrode position of the lithium battery pack is completed, the substrate lifting device 2 drives the assembling base station 3 to move downwards for a certain distance, the positioning frame plate 503 returns to the initial position (or the positioning frame plate 503 completely separates from the area directly above the lithium battery pack), the positioning motor 404 drives the lithium battery pack to rotate for 180 degrees, then the positioning frame plate 503 returns to the area directly above the lithium battery pack again, the substrate lifting device 2 drives the assembling base station 3 to ascend for a certain distance, the placing groove 301 of the assembling base station 3 clamps and supports the lithium battery pack, and the nickel bars 7 are repeatedly (4) taken, placed and (5) operated in the electrode welding (here completed series welding operation of the lithium battery pack, after the whole series welding is completed, the lithium batteries can be placed on a welding platform in the welding parallel direction for welding, the overall concept of the parallel welding design is basically similar to that in the invention, only the specific positions of the sinking bar-shaped positioning grooves 5032 in the positioning frame plate 503 need to be changed, as shown in the parallel positioning grooves 14 for parallel welding in fig. 13, the nickel bars 7 which are placed in the parallel welding and can be positioned in the parallel welding.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a lithium cell group electrode post horizontal welding set, includes base frame board (1), its characterized in that: the device comprises a base frame plate (1), an assembling base (3) and clamping assemblies (4) located at the positions of two sides of the assembling base (3), wherein the base frame plate (1) is provided with two transverse moving base grooves (102), the upper side of the base frame plate (1) is provided with the assembling base (3) and the clamping assemblies (4), the bottom of the base frame plate (1) is embedded and provided with a base lifting device (2) used for driving the assembling base (3) to vertically lift, the assembling base (3) is provided with a placing groove (301), and the bottom surface of the placing groove (301) is provided with a plurality of sinking slots (302) used for inserting lithium battery monomers; the clamping assembly (4) comprises a first linear motor (401) and a positioning motor (404), the first linear motor (401) is installed at the position of the transverse moving base groove (102) in a guiding mode, the first linear motor (401) is fixedly connected with a first supporting frame (402) and a motor installing frame (403), the positioning motor (404) is fixedly installed at the position of the motor installing frame (403), and the output end of the positioning motor (404) is connected with a clamping frame plate (406) of a U-shaped structure; the welding positioning device comprises a base frame plate (1), wherein vertical fixing frames (104) are fixedly installed on two sides of the base frame plate (1), a welding positioning assembly (5) is installed at the upper side position of each vertical fixing frame (104), each welding positioning assembly (5) comprises a group of guide cross rods (501), each guide cross rod (501) is fixedly connected with the corresponding vertical fixing frame (104), a motor fixing frame (502) is fixedly connected between the corresponding group of guide cross rods (501), a fixed-position linear motor (505) is fixedly installed at the middle position of each motor fixing frame (502), a positioning frame plate (503) is slidably installed between the corresponding group of guide cross rods (501), the positioning frame plate (503) is provided with a plurality of wide-mouth strip-shaped grooves (5031) which are arranged in parallel, a downward through sinking strip-shaped positioning groove (5032) is formed in the bottom of each wide-mouth strip-shaped groove (5031), one side of each positioning frame plate (503) is fixedly connected with a moving shaft lever (504), and the moving shaft lever (504) is connected with the fixed-position linear motor (505) in a matching manner; the material box (6) is fixedly mounted on the top side of the base frame plate (1), the material box (6) comprises a bottom cavity (601) and a plurality of material storage strip-shaped grooves (602) located above the bottom cavity (601), a propelling frame (9) is arranged in the material box (6), the propelling frame (9) comprises a propelling bottom connecting rod (901) and a plurality of propelling vertical rods (902) located on the upper side of the propelling bottom connecting rod (901), propelling support strips (903) movably inserted into the material storage strip-shaped grooves (602) are arranged on the top side of the propelling vertical rods (902), and the base frame plate (1) is provided with a material lifting driving device (8) for driving the propelling frame (9) to vertically lift; the welding positioning assembly (5) is provided with a station guide mechanism (10) in the upper area, and a material taking assembly (11) and a welding assembly (12) which move directionally on the station guide mechanism (10) are arranged, wherein the material taking assembly (11) comprises a second linear motor (1101) which is installed on the station guide mechanism (10) in a matched mode, the lower side of the second linear motor (1101) is fixedly connected with a material taking lifting device (1102), the material taking lifting device (1102) is connected with a material taking frame (1104) in a driving mode, a plurality of groups of material taking support rods (1105) are arranged on the material taking frame (1104), electric suckers (1106) are arranged at the tail end positions of the material taking support rods (1105), the welding assembly (12) comprises a third linear motor (1201) which is installed on the station guide mechanism (10) in a matched mode, the lower side of the third linear motor (1201) is fixedly connected with the welding lifting device (1202), the welding lifting device (1202) is connected with a welding slat (1204) in a driving mode, and a plurality of welding heads (1205) are installed on the bottom side of the welding slat (1204).
2. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: the lifting base groove (101) is formed in the top side face of the base frame plate (1), the lifting base groove (101) is located between the two transverse moving base grooves (102), the assembling base table (3) is movably installed at the position of the lifting base groove (101), a first lifting shaft rod (201) is arranged at the output end of the base lifting device (2), and the first lifting shaft rod (201) is fixedly connected with the bottom side face of the assembling base table (3).
3. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: a transverse shaft rod (103) is arranged in the transverse base groove (102), and the first linear motor (401) is installed at the position of the transverse shaft rod (103) in a matching mode.
4. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: the output end of the positioning motor (404) is connected with a rotating shaft rod (405), the clamping frame plate (406) is fixedly connected with the tail end of the rotating shaft rod (405), an extrusion rubber pad (4061) in extrusion contact with the lithium battery monomer is arranged on the inner side of the clamping frame plate (406), and a contact round angle (4062) is arranged at the front side end of the clamping frame plate (406).
5. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: the size of an opening at the upper side of the wide-mouth strip-shaped groove (5031) is larger than the width of an opening of the sinking strip-shaped positioning groove (5032), and two sides of the positioning frame plate (503) are provided with edge position guide notches (5033) matched with the guide transverse rod (501).
6. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: the output end of the material lifting driving device (8) is connected with a material lifting shaft lever (801), and the material lifting shaft lever (801) is fixedly connected with the bottom side surface of the propelling frame (9); the output end of the material taking lifting device (1102) is connected with a material taking lifting shaft lever (1103), and the material taking lifting shaft lever (1103) is fixedly connected with the top side of the material taking frame (1104); the output end of the welding lifting device (1202) is connected with a welding lifting shaft rod (1203), and the welding lifting shaft rod (1203) is fixedly connected with the top side face of the welding strip plate (1204).
7. The horizontal welding device for the electrode column of the lithium battery pack as claimed in claim 1, wherein: the width of the welding head (1205) is smaller than the width of the opening of the sinking strip-shaped positioning groove (5032); when the longitudinal height of the welding head (1205) is Hb, the sum of the groove depths of the wide-mouth strip-shaped groove (5031) and the sinking strip-shaped positioning groove (5032) is Db, and the thickness dimension of the nickel strip placed in the sinking strip-shaped positioning groove (5032) is Dc, hb > = Db-Dc.
8. A horizontal welding method for an electrode column of a lithium battery pack, which comprises the following steps of using the horizontal welding device for an electrode column of a lithium battery pack according to any one of claims 1 to 7: (1) The initial support placement of the lithium battery monomers comprises the steps of inserting a plurality of lithium battery monomers into the sinking slots (302) of the assembly base platform (3) according to a certain position sequence through a manual or mechanical arm; (2) After the lithium battery monomer is placed, a fixed position linear motor (505) is started, a moving shaft rod (504) moves relatively, the positioning frame plate (503) is driven to move transversely to a region right above the lithium battery monomer inserted on the assembling base platform (3), and then the base lifting device (2) pushes the assembling base platform (3) to lift for a certain distance; (3) The lithium battery is clamped and fixed, wherein a first linear motor (401) drives a position adjusting motor (404) and clamping frame plates (406) to transversely move towards the direction of the lithium battery monomer, and the clamping frame plates (406) on two sides firmly clamp all the lithium battery monomers inserted on the assembling base platform (3); (4) Taking and placing nickel strips, namely taking the nickel strips positioned at the uppermost layer of the material box (6) out of the material box (6) by the material taking assembly (11), and placing the taken nickel strips at the blank sinking strip positioning groove (5032); when the nickel strips at the uppermost layer of the material box (6) are taken away by the material taking assembly, the material lifting driving device (8) drives the pushing frame (9) to ascend by a distance of the thickness of the nickel strips; (5) Electrode welding, namely after nickel strips are placed in the sinking strip-shaped positioning grooves (5032) of the positioning frame plate (503), moving the welding assembly (12) to the position of a first group of welding points of the single lithium battery, pushing a welding head (1205) downwards by a welding lifting device (1202) to be inserted into the sinking strip-shaped positioning grooves (5032), and welding the current welding position by the welding head (1205) after the nickel strips in the sinking strip-shaped positioning grooves (5032) are pressed; after the first group of welding point positions are welded, the welding head (1205) rises for a certain distance, the third linear motor (1201) moves step by step to drive the welding head (1205) to move to the position right above the position needing welding, and the welding head (1205) is pushed down through the welding lifting device (1202) to complete the welding of the subsequent welding position; (6) And (2) overturning welding, namely after series welding is completed at the current electrode position of the lithium battery pack, driving the assembling base station (3) to move downwards for a certain distance by the substrate lifting device (2), returning the positioning frame plate (503) to the initial position, driving the lithium battery pack to rotate for 180 degrees by the positioning motor (404), then returning the positioning frame plate (503) to the region right above the lithium battery pack again, driving the assembling base station (3) to ascend by the substrate lifting device (2) for a certain distance, carrying out clamping support on the lithium battery pack by the placing groove (301) of the assembling base station (3), and repeating (4) operations in nickel strip taking, placing and (5) electrode welding.
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