CN116493794A - Series-parallel welding device and method for synchronous positioning of electrode columns of lithium battery - Google Patents
Series-parallel welding device and method for synchronous positioning of electrode columns of lithium battery Download PDFInfo
- Publication number
- CN116493794A CN116493794A CN202310670561.1A CN202310670561A CN116493794A CN 116493794 A CN116493794 A CN 116493794A CN 202310670561 A CN202310670561 A CN 202310670561A CN 116493794 A CN116493794 A CN 116493794A
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- Prior art keywords
- lithium battery
- electrode
- welding
- traction
- bearing
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 103
- 238000003466 welding Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 132
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000004070 electrodeposition Methods 0.000 claims description 7
- 238000003032 molecular docking Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
-
- 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
-
- 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
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
-
- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to the technical field of welding of electrode columns of lithium batteries, in particular to a series-parallel welding device and a series-parallel welding method for synchronous positioning of the electrode columns of the lithium batteries, wherein the series-parallel welding device comprises a bearing machine body with an inverted T-shaped structure, and the bearing machine body is provided with: the bearing truss is fixedly embedded at the upper end position of the bearing body through bolts; the butt joint mechanism is used for butt joint of nickel strips to the lithium battery and is arranged on a bearing machine body through a bearing truss. The invention sets the traction roller in the bearing machine body of the T-shaped structure, and uses the steering fixed pulley to lead the traction sling to drag the lifting hanger, so that the unfolded limit push rod carries out limit fixation on the nickel strip butted with the electrode of the lithium battery in the horizontal direction; utilize the load frame to set up the round trip platform and the welding piece that go up and down by the controller drive for the welding piece can correspond the butt joint point between lithium cell electrode and the nickel strip at vertical lift in-process, thereby realizes accurate welding operation.
Description
Technical Field
The invention relates to the technical field of welding of electrode columns of lithium batteries, in particular to a series-parallel welding device and method for synchronous positioning of electrode columns of lithium batteries.
Background
The development of scientific technology makes the application field of lithium batteries wider and wider, in order to ensure the safe use of lithium batteries, the nickel strips are welded at the electrode positions of the lithium batteries in a multipoint spot welding mode, namely four welding spots which are distributed in a staggered manner are spot-welded at the positions where the nickel strips are connected with the electrodes of the lithium batteries, and the distribution of the four welding spots is preferably similar to the four corners of a parallelogram. The existing welding heads are all of double-point type, and when a single lithium battery is subjected to staggered multi-point welding, two spot welding operations are generally required, and the moving control requirement level of the welding heads is high when the welding heads are subjected to staggered and roundabout moving spot welding.
In the prior art, as disclosed in publication number CN115502625B, a multi-point welding device and a welding method for electrode columns of lithium batteries are provided, a positioning welding mechanism moving along the installation direction of a nickel strip is arranged above the nickel strip, and a welding module, a transverse sensing module, a first longitudinal sensing module positioned at one side of the welding module and a second longitudinal sensing module positioned at the other side of the welding module are arranged on the bottom side of the positioning welding mechanism. The nickel sheet and the electrode of the single lithium battery are subjected to multipoint staggered spot welding operation, and compared with the fact that all spot welding of the single lithium battery is finished one by one, the welding mechanism avoids the complicated positioning and welding processes of a bypass type welding mechanism. However, the electrode of the lithium battery and the nickel strip still need to be manually abutted in advance, the structure of the electrode of the lithium battery and the nickel strip is small in size, the circuit is intricate and complex, the requirement on the size is extremely high, the error of wrong butt joint or large butt joint size is easy to cause, and because a plurality of connecting ends exist between the electrode of the lithium battery and the nickel strip, the connecting ends between the electrode of the lithium battery and the nickel strip need to be frequently positioned in a mode of moving the welding head, and the situation that the positioning difficulty is large is caused under the condition that the welding head, the electrode of the lithium battery and the nickel strip are moved and adjusted, so that the welding operation efficiency is reduced, and the use safety of the lithium battery is influenced.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, accurate series-parallel welding is difficult to carry out on a lithium battery electrode column, and provides a series-parallel welding device and method for synchronously positioning the lithium battery electrode column.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a synchronous positioning's of lithium cell electrode post series-parallel connection welding set, includes the bearing organism of falling T column structure, be provided with on the bearing organism:
the bearing truss is fixedly embedded at the upper end position of the bearing body through bolts, and the hollow middle hole is vertically arranged in the longitudinal section of the bearing body;
the driving motor and the driving rotating shaft driven to rotate by the driving motor are fixedly arranged on the bearing body, and the driving rotating shaft is rotatably arranged in the bearing body through a bearing;
the branching support is welded at the top end of the bearing machine body in a splayed shape;
the traction roller and the steering fixed pulley are fixedly sleeved on the driving rotating shaft, and the steering fixed pulley is fixedly arranged in the shunt support;
the lifting hanger is vertically sleeved in the bearing truss in a sliding manner, and the traction sling is fixedly connected between the traction roller and the lifting hanger through the steering fixed pulley;
the lifting platform is fixedly connected to the lower end position of the lifting hanger, and a placing groove for embedding the lithium battery electrode is formed in the middle of the lifting platform;
the guide long holes are symmetrically formed in two ends of the lifting platform, and the moving frame is sleeved in the lifting platform in a sliding manner through the guide long holes;
the movable table is used for placing the nickel strips and welded on the movable frame;
the limiting mechanism is arranged above the lifting table through the bearing body and is driven by the driving rotating shaft in a transmission way, and a welding assembly used for welding the lithium battery electrode and the nickel strip is arranged on the limiting mechanism;
the butt joint mechanism is used for butt joint of nickel strips to the lithium battery and is arranged on a bearing machine body through a bearing truss.
Preferably, the bearing body is opened through the hollow hole top end, the traction roller is sleeved on one end of the driving rotating shaft positioned in the hollow hole, and the traction sling is slidably sleeved in the opening of the bearing body top end.
Preferably, the movable frame is of an L-shaped structure, and the movable platform is connected to the upper end position of the movable frame corresponding to the placement groove.
Preferably, the limiting mechanism includes:
the transmission rotating shaft and the traction rotating disc are rotatably arranged on the bearing machine body, and the traction rotating disc is fixedly connected to the transmission rotating shaft;
the driving gear and the driven gear are in meshed connection and are respectively connected to the driving rotating shaft and the transmission rotating shaft in a key manner;
the guide groove and the loading frame are arranged in the guide groove, the guide groove is arranged in the bearing body, and the loading frame is sleeved in the guide groove in a sliding way;
the steering pull rod is used for movably connecting the traction turntable and the load carrier, and the clamping piece is welded at the lower end position of the load carrier corresponding to the lithium battery electrode.
Preferably, one end of the steering pull rod is eccentrically connected to the traction turntable through a pin shaft, and the other end of the steering pull rod is connected to the load carrier through a pin shaft.
Preferably, the welding assembly comprises:
the controller and the reciprocating table driven by the controller to move up and down are fixedly arranged on the load carrier, and the reciprocating table is slidably arranged in the load carrier;
and the welding piece is fixedly arranged on the reciprocating table.
Preferably, the docking mechanism comprises:
the lifting device comprises a lifting platform, a first connecting rod, a second connecting rod, a movable frame, a bearing truss, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are movably connected;
the docking mechanism further includes:
the sealing cavity is of an L-shaped structure arranged in the movable frame;
the first piston is fixedly arranged on the lifting table, the first piston is sleeved in the lower end of the sealing cavity in a sliding manner, and the second piston is sleeved in the upper end of the sealing cavity in a sliding manner;
the sliding block is fixedly sleeved on the second piston;
the movable limiting push rod is connected with the traction support rod in a movable mode, the limiting push rod is arranged on the movable frame through a pin shaft, and one end, away from the limiting push rod, of the traction support rod is connected with the sliding block through a pin shaft.
Preferably, one end of the second connecting rod, which is far away from the bearing truss, is connected with the middle end of the first connecting rod through a pin shaft, and one end of the traction supporting rod, which is far away from the sliding block, is connected with the middle end of the limiting push rod through a pin shaft.
The application method of the series-parallel welding device for synchronously positioning the electrode columns of the lithium battery comprises the following steps:
step S1, placing a lithium battery electrode in a placing groove, placing a nickel strip on a mobile station, controlling a driving motor to be started, driving a driving rotating shaft to rotate by the output end of the driving motor, and carrying out traction rolling on a traction sling by a traction roller so that a lifting hanger moves vertically upwards in a bearing truss, and further driving the lifting table, the mobile station, the lithium battery electrode positioned on the lifting table and the nickel strip to move vertically upwards;
step S2, in the upward moving process of the lifting platform, the first connecting rod extrudes the second connecting rod, so that the second connecting rod deflects to press the movable frame, and the movable frame drives the nickel strip to horizontally move towards the electrode position of the lithium battery through the movable platform;
step S3, the driving rotating shaft drives the transmission rotating shaft to deflect through the driving gear and the driven gear, the transmission rotating shaft pulls the steering pull rod through the traction turntable, so that the load carrier moves vertically downwards in the guide groove, and the clamping piece is used for pressing and limiting the lithium battery electrode positioned in the placing groove;
step S4, the movable frame is enabled to shrink inwards of the sealing cavity in the horizontal movement process, so that the second piston is extruded, the sliding block moves upwards along with the second piston, the sliding block supports the limiting push rod through the traction support rod, the limiting push rod is enabled to be opened on the movable frame, the nickel strip is extruded, and connection between the nickel strip and the electrode of the lithium battery is achieved;
and S5, controlling the reciprocating table to move up and down through the controller, so that the welding piece welds the connecting end between the nickel strip and the electrode of the lithium battery.
Preferably, the steps S1, S2, S3 are performed synchronously with the step S4.
Compared with the prior art, the invention has the following advantages:
1. the invention sets the traction roller driven by the driving motor to rotate in the bearing machine body with the T-shaped structure, and uses the steering fixed pulley to lead the traction sling to drag the lifting hanger, so that the lifting platform and the moving platform on the lifting hanger respectively support the lithium battery electrode and the nickel strip to carry out synchronous height position adjustment.
2. According to the invention, the second connecting rod and the first connecting rod which are movably connected are respectively arranged on the bearing body and the bearing truss, so that the nickel strip is supported to move horizontally in the upward moving process of the moving frame and the moving table, and the automatic butt joint of the nickel strip and the lithium battery electrode is realized.
3. According to the invention, the driven rotating shaft which is in meshed transmission connection with the driving rotating shaft is arranged on the bearing body, so that the traction turntable can traction the loading frame and the clamping piece in the deflection process, and further, the clamping piece is utilized to press and limit the butted lithium battery electrode and the nickel strip from top to bottom.
4. According to the invention, the L-shaped moving frame is arranged, the first piston and the second piston interact through the horizontal movement of the moving frame, and then the sliding block on the second piston is used for pressing the limiting push rod, so that the unfolded limiting push rod is used for limiting and fixing the nickel strip butted with the electrode of the lithium battery in the horizontal direction.
5. According to the invention, the load carrier is used for arranging the reciprocating table driven by the controller to lift and the welding piece, so that the welding piece can correspond to the butt joint between the lithium battery electrode and the nickel strip in the vertical lifting process, and accurate welding operation is realized.
Drawings
Fig. 1 is a schematic structural diagram of a series-parallel welding device for synchronously positioning electrode columns of a lithium battery;
fig. 2 is a rear view of a series-parallel welding device for synchronously positioning electrode columns of a lithium battery according to the present invention;
fig. 3 is a first thickness section view of a series-parallel welding device for synchronously positioning electrode columns of a lithium battery according to the present invention;
fig. 4 is a second thickness section view of a series-parallel welding device for synchronously positioning electrode columns of a lithium battery according to the present invention;
FIG. 5 is a cross section of a docking mechanism of a synchronous positioning serial-parallel welding device for electrode columns of lithium batteries;
fig. 6 is a schematic side sectional view of a series-parallel welding device for synchronously positioning electrode columns of a lithium battery according to the present invention;
fig. 7 is a cross section of a limiting mechanism of a synchronous positioning serial-parallel welding device for electrode columns of a lithium battery;
fig. 8 is a schematic diagram of a butt joint structure of an electrode column and a nickel bar of a lithium battery.
In the figure: 1. a bearing body; 2. a bearing truss; 3. hollow holes; 4. a driving motor; 5. driving the rotating shaft; 6. traction roller; 7. a shunt support; 8. a diverting pulley; 9. lifting the hanging frame; 10. traction sling; 11. a lifting table; 12. a placement groove; 13. a guide long hole; 14. a moving rack; 15. a mobile station; 16. a first link; 17. a second link; 18. a transmission rotating shaft; 19. a drive gear; 20. a driven gear; 21. traction turntable; 22. a guide groove; 23. a load carrier; 24. a steering tie rod; 25. a clamping member; 26. sealing the cavity; 27. a first piston; 28. a second piston; 29. a slide block; 30. a limiting push rod; 31. traction support rod; 32. a controller; 33. a shuttle station; 34. and (5) welding parts.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-8, a series-parallel welding device for synchronous positioning of electrode columns of a lithium battery comprises a bearing body 1 with an inverted-T-shaped structure, and it is to be noted that a base of the bearing body 1 can be fixed by bolts so as to ensure that the whole welding device is fixed, and the bearing body 1 is provided with:
the bearing truss 2 and the hollow hole 3 are fixedly embedded in the upper end position of the bearing body 1 through bolts, the hollow hole 3 is vertically arranged in the longitudinal section of the bearing body 1, the bearing body 1 is opened through the top end of the hollow hole 3, and the traction sling 10 is divided into two parts to extend outwards through the opening so as to drag the symmetrically arranged lifting hangers 9.
The driving motor 4 and the driving rotating shaft 5 driven to rotate by the driving motor 4 are fixedly arranged on the bearing body 1, the driving rotating shaft 5 is rotatably arranged in the bearing body 1 through a bearing, the driving motor 4 adopts a servo motor with the model of HC-SFS203, and the driving rotating shaft 5 drives the traction roller 6 to bidirectionally rotate under the driving action of the servo motor, so that the traction sling 10 is controlled to retract.
The branching support 7, the branching support 7 is splayed to weld in the bearing organism 1 top position.
The traction roller 6 and the steering fixed pulley 8 are fixedly sleeved on the driving rotating shaft 5, the steering fixed pulley 8 is fixedly arranged in the shunt support 7, the steering fixed pulley 8 is utilized to carry out steering support on the traction sling 10 which moves, and severe abrasion of the traction sling 10 and the bearing machine body 1 is avoided.
The lifting hanging frame 9 and the traction sling 10 are vertically sleeved in the bearing truss 2 in a sliding mode, the traction sling 10 is fixedly connected between the traction roller 6 and the lifting hanging frame 9 through the steering fixed pulley 8, the traction sling 10 can achieve vertical upward movement of the lifting hanging frame 9 through the rolling of the traction roller 6, then the lithium battery electrode and the nickel strip are driven to be lifted to a required height position, the lifting hanging frame 9 is vertically downward moved through the release of the traction sling 10, and the limiting mechanism is in an open state, so that the lithium battery electrode and the nickel strip are conveniently placed on the lifting table 11 and the moving table 15.
The lifting table 11 for placing the lithium battery electrode is fixedly connected to the lower end position of the lifting hanger 9, and a placing groove 12 for embedding the lithium battery electrode is formed in the middle of the lifting table 11.
The guide long holes 13 and the movable frames 14 positioned in the guide long holes 13 are symmetrically arranged in two ends of the lifting table 11, and the movable frames 14 are sleeved in the lifting table 11 in a sliding manner through the guide long holes 13, because the lifting table 11 supports the movable frames 14 to vertically move upwards, the movable frames 14 squeeze the second connecting rods 17 through the first connecting rods 16, so that the first connecting rods 16 stretch and deflect the second connecting rods 17, and further support the movable frames 14 to horizontally move through the guide long holes 13, and nickel strips are horizontally pushed to the electrode positions of the lithium battery until the two nickel strips are in butt joint.
A moving table 15 for placing nickel strips, the moving table 15 being welded to the moving frame 14.
The limiting mechanism for fixing the lithium battery electrode is arranged at the upper position of the lifting table 11 through the bearing body 1 and is driven by the driving rotating shaft 5 in a transmission way, a welding assembly for welding the lithium battery electrode and the nickel strip is arranged on the limiting mechanism, and the limiting mechanism comprises:
the transmission rotating shaft 18 and the traction rotating disc 21, the transmission rotating shaft 18 is rotatably arranged on the bearing body 1, and the traction rotating disc 21 is fixedly connected to the transmission rotating shaft 18;
the driving gear 19 and the driven gear 20 are in meshed connection, the driving gear 19 and the driven gear 20 are respectively connected to the driving rotating shaft 5 and the driving rotating shaft 18 in a key way, and as can be seen from fig. 4 of the specification, the driving rotating shaft 18 deflects by half a turn after the driving rotating shaft 5 rotates for a plurality of turns due to the transmission ratio between the driving gear 19 and the driven gear 20, so that the height position of the steering pull rod 24 is adjusted;
the guide groove 22 and the loading frame 23 positioned in the guide groove 22 are arranged in the bearing body 1, the loading frame 23 is sleeved in the guide groove 22 in a sliding way, and the loading frame 23 performs vertical lifting movement under the traction action of the traction turntable 21 so as to drive the clamping piece 25 to lift;
the steering pull rod 24 and the clamping piece 25 for pressing the lithium battery electrode, the steering pull rod 24 is used for movably connecting the traction turntable 21 and the load frame 23, the clamping piece 25 is welded at the lower end position of the load frame 23 corresponding to the lithium battery electrode, and the clamping piece 25 which moves downwards to the required height position presses and limits the butted lithium battery electrode and the nickel strip, so that the butting between the lithium battery electrode and the nickel strip is ensured to be stable.
Tenth, be used for to the butt joint mechanism of lithium cell butt joint nickel strip, butt joint mechanism passes through bearing truss 2 and sets up on bearing organism 1, and with reference to description figure 4-figure 6, butt joint mechanism includes:
the first connecting rod 16 and the second connecting rod 17 which are movably connected, one end of the first connecting rod 16 is arranged on the lifting platform 11 through a pin shaft, the other end of the first connecting rod is connected with the movable frame 14 through a pin shaft, one end of the second connecting rod 17, which is far away from the first connecting rod 16, is arranged on the bearing truss 2 through a pin shaft, and as the lifting platform 11 and the bearing truss 2 are pressed mutually, the movable frame 14 can only move in the horizontal direction, and then the nickel strip is driven to move towards the electrode position of the lithium battery, so that the butt joint between the two is realized;
the docking mechanism further includes:
the seal cavity 26, the seal cavity 26 is an L-shaped structure arranged in the movable frame 14;
the first piston 27 and the second piston 28, the first piston 27 is fixedly arranged on the lifting table 11, the first piston 27 is sleeved in the lower end of the sealing cavity 26 in a sliding manner, the second piston 28 is sleeved in the upper end of the sealing cavity 26 in a sliding manner, the first piston 27 is pressed by the moving frame 14 in the horizontal moving process, the second piston 28 is pressed by the first piston 27, the second piston 28 is contracted towards the upper end, and the traction supporting rod 31 is supported by the sliding block 29;
the sliding block 29 is fixedly sleeved on the second piston 28;
the limiting push rod 30 and the traction support rod 31 are movably connected, the limiting push rod 30 is arranged on the movable frame 14 through a pin shaft, one end, far away from the limiting push rod 30, of the traction support rod 31 is connected with the sliding block 29 through a pin shaft, the traction support rod 31 which moves upwards and deflects enables the limiting push rod 30 to be gradually opened so as to squeeze nickel strips on the movable table 15, and the nickel strips are tightly abutted against electrodes of the lithium battery.
Based on the technical means, the method can further comprise the following steps:
the traction roller 6 is sleeved on one end of the driving rotating shaft 5 positioned in the hollow hole 3, and the traction sling 10 is slidably sleeved in the top end opening of the bearing body 1.
Referring to fig. 4 and 5 of the specification, the movable frame 14 has an L-shaped structure, and the movable table 15 is connected to the upper end of the movable frame 14 corresponding to the placement groove 12, and the movable table 15 moves horizontally along with the movable frame 14, so as to realize movement of the nickel bar in the direction of the electrode of the lithium battery.
One end of the steering tie rod 24 is eccentrically connected to the traction turntable 21 through a pin shaft, and the other end thereof is connected to the carrier 23 through a pin shaft.
The welding assembly includes:
the controller 32 and the reciprocating table 33 driven to move up and down by the controller 32, the controller 32 is fixedly arranged on the carrier 23, the reciprocating table 33 is slidably arranged in the carrier 23, the controller 32 can adopt control equipment with the model of S7-1200, and the controller can realize the up-and-down movement of the welding piece 34 in the vertical direction through the reciprocating table 33, so that the welding operation of the welding piece 34 on the connecting end of the lithium battery electrode and the nickel strip is realized;
and a welding member 34, wherein the welding member 34 is fixedly mounted on the traverse table 33.
The end of the second connecting rod 17 far away from the bearing truss 2 is connected with the middle end of the first connecting rod 16 through a pin shaft, and the end of the traction supporting rod 31 far away from the sliding block 29 is connected with the middle end of the limiting push rod 30 through a pin shaft.
Functional principle reference:
the welding method extended by the series-parallel welding device for synchronously positioning the electrode columns of the lithium battery comprises the following steps:
step S1, placing a lithium battery electrode in a placing groove 12, placing a nickel strip on a mobile table 15, controlling a driving motor 4 to be started, driving a driving rotating shaft 5 to rotate by the output end of the driving motor 4, and carrying out traction rolling on a traction sling 10 by a traction roller 6 to enable a lifting hanger 9 to vertically move upwards in a bearing truss 2, so as to drive the lifting table 11, the mobile table 15, the lithium battery electrode positioned on the lifting hanger and the nickel strip to vertically move upwards, wherein in the process, the lithium battery electrode and the nickel strip always keep horizontal correspondence;
step S2, in the upward moving process of the lifting table 11, the first connecting rod 16 extrudes the second connecting rod 17, so that the second connecting rod 17 deflects to press the movable frame 14, the movable frame 14 drives the nickel strip to horizontally move towards the electrode position of the lithium battery through the movable table 15, and the nickel strip is horizontally moved towards the electrode position of the lithium battery until the butt joint of the nickel strip and the electrode of the lithium battery is realized according to the attached figure 8 of the specification;
step S3, the driving rotating shaft 5 drives the transmission rotating shaft 18 to deflect through the driving gear 19 and the driven gear 20, the transmission rotating shaft 18 pulls the steering pull rod 24 through the traction turntable 21, so that the loading frame 23 moves vertically downwards in the guide groove 22, the clamping piece 25 is utilized to press and limit the lithium battery electrode positioned in the placing groove 12, and the loading frame 23 drives the clamping piece 25 to move vertically downwards so as to press and limit the butted lithium battery electrode and the nickel strip;
step S4, the movable frame 14 is contracted inwards to the sealing cavity 26 in the horizontal movement process, so that the second piston 28 is extruded, the sliding block 29 moves upwards along with the second piston 28, the sliding block 29 supports the limiting push rod 30 through the traction support rod 31, the limiting push rod 30 is opened on the movable frame 14 to extrude the nickel strip, connection between the nickel strip and the electrode of the lithium battery is realized, the nickel strip is extruded by the limiting push rod 30 while the nickel strip is horizontally pushed, and the butting stability of the nickel strip on the movable table 15 and the electrode of the lithium battery is ensured;
in step S5, the controller 32 controls the reciprocating table 33 to move up and down, so that the welding member 34 welds the connection end between the nickel strip and the lithium battery electrode.
Step S1, step S2, step S3 and step S4 are synchronously performed, so that the operation and time for repeatedly butting the electrode of the lithium battery with the nickel strip are saved, and the pretreatment efficiency of welding operation is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a synchronous positioning's of lithium cell electrode post series-parallel connection welding set, includes bearing organism (1) of falling T column structure, its characterized in that is provided with on bearing organism (1):
the bearing truss (2) and the hollow middle hole (3) are fixedly embedded in the upper end position of the bearing body (1) through bolts, and the hollow middle hole (3) is vertically arranged in the longitudinal section of the bearing body (1);
the driving motor (4) and a driving rotating shaft (5) driven to rotate by the driving motor, the driving motor (4) is fixedly arranged on the bearing body (1), and the driving rotating shaft (5) is rotatably arranged in the bearing body (1) through a bearing;
the shunt support (7) is welded at the top end of the bearing machine body (1) in a splayed shape;
the traction roller (6) and the steering fixed pulley (8), wherein the traction roller (6) is fixedly sleeved on the driving rotating shaft (5), and the steering fixed pulley (8) is fixedly arranged in the branching bracket (7);
the lifting hanger (9) and the traction sling (10) are vertically sleeved in the bearing truss (2) in a sliding mode, and the traction sling (10) is fixedly connected between the traction roller (6) and the lifting hanger (9) through the steering fixed pulley (8);
the lifting table (11) is used for placing the lithium battery electrode, the lifting table (11) is fixedly connected to the lower end position of the lifting hanger (9), and a placing groove (12) used for embedding the lithium battery electrode is formed in the middle of the lifting table;
the guide long holes (13) and the movable frames (14) positioned in the guide long holes (13) are symmetrically arranged in two ends of the lifting table (11), and the movable frames (14) are sleeved in the lifting table (11) in a sliding manner through the guide long holes (13);
a moving table (15) for placing nickel strips, the moving table (15) being welded to the moving frame (14);
the limiting mechanism is used for fixing the electrode of the lithium battery, is arranged above the lifting table (11) through the bearing body (1), is driven by the driving rotating shaft (5) in a transmission way, and is provided with a welding assembly used for welding the electrode of the lithium battery and the nickel strip;
the butt joint mechanism is used for butt joint of nickel strips to the lithium battery and is arranged on the bearing machine body (1) through the bearing truss (2).
2. The device for synchronously positioning and welding the electrode columns of the lithium battery according to claim 1, wherein the bearing body (1) is provided with an opening at the top end through the hollow hole (3), the traction roller (6) is sleeved on one end of the driving rotating shaft (5) positioned in the hollow hole (3), and the traction sling (10) is sleeved in the opening at the top end of the bearing body (1) in a sliding manner.
3. The welding device for synchronously positioning electrode columns of lithium batteries according to claim 1, wherein the movable frame (14) has an L-shaped structure, and the movable table (15) is connected to the upper end position of the movable frame (14) corresponding to the placement groove (12).
4. The device for synchronously positioning and welding electrode columns of lithium batteries according to claim 1, wherein the limiting mechanism comprises:
the transmission rotating shaft (18) and the traction rotating disc (21), wherein the transmission rotating shaft (18) is rotatably arranged on the bearing machine body (1), and the traction rotating disc (21) is fixedly connected to the transmission rotating shaft (18);
the driving gear (19) and the driven gear (20) are in meshed connection, and the driving gear (19) and the driven gear (20) are respectively connected to the driving rotating shaft (5) and the transmission rotating shaft (18) in a key manner;
the device comprises a guide groove (22) and a loading frame (23) positioned in the guide groove, wherein the guide groove (22) is arranged in a bearing machine body (1), and the loading frame (23) is sleeved in the guide groove (22) in a sliding way;
the steering pull rod (24) and the clamping piece (25) used for pressing the lithium battery electrode, the steering pull rod (24) is used for movably connecting the traction turntable (21) and the carrier (23), and the clamping piece (25) is welded at the lower end position of the carrier (23) corresponding to the lithium battery electrode.
5. The device for synchronously positioning and welding electrode columns of lithium batteries according to claim 4, wherein one end of the steering pull rod (24) is eccentrically connected to the traction turntable (21) through a pin shaft, and the other end of the steering pull rod is connected with the load carrier (23) through a pin shaft.
6. The device for synchronously positioning electrode columns of lithium batteries according to claim 4, wherein the welding assembly comprises:
the controller (32) and the reciprocating table (33) driven by the controller to move up and down, the controller (32) is fixedly arranged on the carrier (23), and the reciprocating table (33) is slidably arranged in the carrier (23);
and the welding piece (34), wherein the welding piece (34) is fixedly arranged on the reciprocating table (33).
7. The device for synchronously positioning and welding electrode columns of lithium batteries according to claim 1, wherein the docking mechanism comprises:
the lifting device comprises a first connecting rod (16) and a second connecting rod (17) which are movably connected, wherein one end of the first connecting rod (16) is arranged on a lifting table (11) through a pin shaft, the other end of the first connecting rod is connected with a movable frame (14) through a pin shaft, and one end of the second connecting rod (17) far away from the first connecting rod (16) is arranged on a bearing truss (2) through a pin shaft;
the docking mechanism further includes:
the sealing cavity (26), the sealing cavity (26) is an L-shaped structure arranged in the movable frame (14);
the first piston (27) and the second piston (28) are fixedly arranged on the lifting table (11), the first piston (27) is sleeved in the lower end of the sealing cavity (26) in a sliding manner, and the second piston (28) is sleeved in the upper end of the sealing cavity (26) in a sliding manner;
the sliding block (29), the said sliding block (29) is fixedly sleeved on the second piston (28);
the movable limiting push rod (30) and the traction support rod (31) are movably connected, the limiting push rod (30) is arranged on the movable frame (14) through a pin shaft, and one end, far away from the limiting push rod (30), of the traction support rod (31) is connected with the sliding block (29) through a pin shaft.
8. The device for synchronously positioning and welding the electrode columns of the lithium battery according to claim 7, wherein one end of the second connecting rod (17) far away from the bearing truss (2) is connected with the middle end of the first connecting rod (16) through a pin shaft, and one end of the traction support rod (31) far away from the sliding block (29) is connected with the middle end of the limiting push rod (30) through a pin shaft.
9. A method of using the synchronous positioning serial-parallel welding device for electrode columns of lithium batteries according to any one of claims 1 to 8, comprising the steps of:
step S1, placing a lithium battery electrode in a placing groove (12), placing a nickel strip on a mobile table (15), controlling a driving motor (4) to be started, driving a driving rotating shaft (5) to rotate by the output end of the driving motor (4), and carrying out traction rolling on a traction sling (10) by a traction roller (6) to enable a lifting hanger (9) to vertically move upwards in a bearing truss (2), so as to drive a lifting table (11), the mobile table (15) and the lithium battery electrode and the nickel strip positioned on the lifting hanger to vertically move upwards;
step S2, in the upward moving process of the lifting table (11), the first connecting rod (16) extrudes the second connecting rod (17), so that the second connecting rod (17) deflects to press the movable frame (14), and the movable frame (14) drives the nickel strip to horizontally move towards the electrode position of the lithium battery through the movable table (15);
step S3, the driving rotating shaft (5) drives the transmission rotating shaft (18) to deflect through the driving gear (19) and the driven gear (20), the transmission rotating shaft (18) pulls the steering pull rod (24) through the traction turntable (21), the loading frame (23) vertically moves downwards in the guide groove (22), and the clamping piece (25) is used for pressing and limiting the lithium battery electrode positioned in the placing groove (12);
step S4, the first piston (27) is contracted inwards to the sealing cavity (26) by the moving frame (14) in the horizontal moving process, so that the second piston (28) is extruded, the sliding block (29) moves upwards along with the second piston (28), the sliding block (29) supports the limiting push rod (30) through the traction support rod (31), the limiting push rod (30) is opened on the moving frame (14) to extrude the nickel strip, and the connection between the nickel strip and the electrode of the lithium battery is realized;
and S5, controlling the reciprocating table (33) to move up and down through the controller (32) so that the welding piece (34) welds the connecting end between the nickel strip and the lithium battery electrode.
10. The method for using a synchronous positioning serial-parallel welding device for electrode columns of lithium batteries according to claim 9, wherein the steps S1, S2, S3 and S4 are performed synchronously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310670561.1A CN116493794B (en) | 2023-06-08 | 2023-06-08 | Series-parallel welding device and method for synchronous positioning of electrode columns of lithium battery |
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| CN202310670561.1A CN116493794B (en) | 2023-06-08 | 2023-06-08 | Series-parallel welding device and method for synchronous positioning of electrode columns of lithium battery |
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| CN116493794B (en) | 2023-10-31 |
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