CN114083185A - Electricity core spot welding device and electricity core production facility - Google Patents
Electricity core spot welding device and electricity core production facility Download PDFInfo
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- CN114083185A CN114083185A CN202111448833.0A CN202111448833A CN114083185A CN 114083185 A CN114083185 A CN 114083185A CN 202111448833 A CN202111448833 A CN 202111448833A CN 114083185 A CN114083185 A CN 114083185A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The application relates to the technical field of battery production equipment, in particular to a battery cell spot welding device and battery cell production equipment. But first contact pin subassembly and second contact pin subassembly that the liftable set up, stretch into the centre bore of electric core through the sheath subassembly, and then the second contact pin subassembly passes the sheath subassembly and extends to electric core bottom surface, the spot end welding process is accomplished with the cooperation of first contact pin subassembly to the second contact pin subassembly, avoid error and the accident that manual operation plug needle welding caused, automatic spot welding raises the efficiency, prevent that the rosin joint from causing and scrapping, ensure welding quality, protect electric core centre bore inboard through the sheath subassembly simultaneously, prevent that second contact pin subassembly positional deviation from leading to damaging electric core centre bore inboard, guarantee the production quality of battery, improve the spot welding precision. Carry out processes such as material loading, electric core plastic, gasket equipment and detection unloading to electric core through electric core production facility and carry out the integration production, guarantee electric core equipment quality, degree of automation is high, improves production efficiency greatly.
Description
Technical Field
The application relates to the technical field of battery production equipment, in particular to a battery cell spot welding device and battery cell production equipment.
Background
Along with the rapid development in the battery field, the types of batteries are more and more, such as cylindrical batteries and square batteries, and the production process of the conventional cylindrical batteries comprises multiple production procedures, wherein after a lower gasket and a battery core are arranged in a steel shell, the step of spot welding for welding the battery core and the lower gasket is included, and the quality of the battery produced by the spot welding at the bottom of the battery core is directly related to the quality of the battery produced. The middle of the cylindrical battery core is provided with a hollow center hole, in the middle of actual operation, an operator inserts a contact pin into the center hole of the battery core, and the contact pin flows to a pin pulling station to pull the pin after spot-bottom welding, so that the operation is complex, and errors easily occur to cause production accidents. In addition, an operator needs to observe the position of a welding point all the time, and when the welding position is deviated in the welding process, the phenomenon that the internal resistance of the battery is increased or scrapped due to insufficient welding is easy to occur. Moreover, when an operator observes the spot welding operation for a long time, fatigue of eyes is caused, and therefore spot welding efficiency and spot welding precision are affected.
On the other hand, in the completion of the spot bottom welding work of the cylindrical battery core in the prior art, an operator is required to manually add the upper gasket to the battery core after the battery core is loaded, the spot welding position is manually confirmed, then the battery core and the upper gasket are welded, the position accuracy cannot be guaranteed by manually operating the upper gasket to load the upper gasket, too many defective products are easily generated while the working efficiency is low, the production quality of the battery cannot be guaranteed, and the battery core integrated production equipment is lacked in the prior art, the automation degree of the battery core assembly production is low, and the productivity of the battery core is seriously influenced.
Disclosure of Invention
In order to solve the technical problem, the application provides a cell spot welding device for performing spot welding on a cell with a central hole, which comprises a first contact pin assembly, a second contact pin assembly and a displacement driving assembly, wherein the first contact pin assembly is arranged in a lifting manner and used for supporting the bottom of the cell, the welding end of the second contact pin assembly faces the first contact pin assembly, the displacement driving assembly drives the second contact pin assembly to lift, and a sheath assembly for the second contact pin assembly to insert is arranged on the displacement driving assembly; the displacement driving assembly drives the sheath assembly to stretch into a central hole of the battery cell, and the second contact pin assembly penetrates through the sheath assembly and extends to the bottom surface of the battery cell to complete welding. Avoid the error and the accident that manual operation plug needle welding caused, automatic spot welding improves production efficiency, prevents that the rosin joint from causing and scrapping, ensures welding quality, protects electric core centre bore inboard through the sheath subassembly simultaneously, prevents that second contact pin subassembly positional deviation from leading to damaging electric core centre bore inboard, guarantees the production quality of battery, improves the spot welding precision.
Preferably, the first contact pin assembly comprises a first welding pin supported on the battery core, a first sliding block used for installing the first welding pin, and a mounting plate used for the first sliding block to slide, and the first sliding block is connected with a first driving assembly used for driving the first sliding block to slide up and down. The first sliding block is driven by the first driving assembly to ascend and descend and slide on the mounting plate, and then the first welding pin on the first sliding block abuts against the bottom of the battery cell shell.
Preferably, the first driving assembly comprises an eccentric wheel which is rotatably arranged, a swing rod of which the middle part is provided with a roller, and a transmission connecting rod which is connected with the first sliding block and the swing end of the swing rod, and the roller is abutted against the peripheral surface of the eccentric wheel. One end of the swing rod is pivoted and fixed, the swing end of the swing rod is connected with the first sliding block through a transmission connecting rod, the eccentric wheel is connected with the bearing, and then the bearing is connected through a motor and a synchronous belt structure, so that the purpose of synchronous lifting and moving is achieved.
Preferably, the second pin assembly comprises a second welding pin, an installation block for adjustably installing the second welding pin, and a connection block for fixing the installation block and arranged on the displacement driving assembly; the second welding pin welding end faces the first contact pin assembly. The position of realizing the second welding needle can be adjusted wantonly, and then adjusts the length that the second welding needle stretches out the installation piece bottom surface, conveniently welds the electric core of different models, and convenient production compatibility is high. The connecting block is driven to lift through the displacement driving assembly, and the second welding needle is driven to be inserted into the center hole of the battery core.
Preferably, the sheath assembly comprises a hollow protective shell arranged between the second welding pin and the first inserting pin assembly, and a fixed block used for mounting the protective shell, and the fixed block is connected to the displacement driving assembly through an elastic piece. The inner side of the center hole of the battery core is protected by the sheath assembly, so that the inner side of the center hole of the battery core is prevented from being damaged due to the position deviation of the second contact pin assembly, the production quality of the battery is guaranteed, and the spot welding precision is improved.
Preferably, the displacement driving assembly comprises a second sliding block, a supporting plate for the second sliding block to slide, and a lifting driving member for driving the second sliding block; the connecting block and the fixing block are arranged on the second sliding block. The second sliding block is driven to slide on the supporting plate in a lifting mode through the lifting driving piece, and then the second welding needle is driven to move in a lifting mode so that the spot welding process can be completed.
Preferably, the displacement driving assembly further comprises a two-axis driving assembly and a sliding pedestal arranged on the two-axis driving assembly, and the supporting plate is arranged on the sliding pedestal in a sliding manner. And then the integral structure on the drive backup pad rises and descends, and then realizes that backup pad and second slider go up and down to slide the setting respectively, improves the position accuracy.
Preferably, the slide rail that the confession the backup pad slided and sets up is provided with on the slide block seat, be connected with the drive in the backup pad is followed the gliding second drive assembly of slide rail. First contact pin subassembly of first drive assembly drive rises to support and leans on electric core bottom, and second drive assembly drive second contact pin subassembly and sheath subassembly descend to predetermineeing the height simultaneously, and the welding is accomplished in rethread lifting drive spare drive second contact pin subassembly and sheath subassembly stretch into the centre bore of electric core, and the action is orderly smooth and easy, guarantees the welding accuracy.
Preferably, the mounting block is provided with a mounting groove for the second welding pin to vertically insert; the second welding needle can be adjusted in position and installed in the installation groove. Make the mounting groove press from both sides tightly to realize fixed second welding pin through fasteners such as bolts, and then realize that the position of second welding pin can be adjusted wantonly, and then adjust the length that the second welding pin stretches out the installation piece bottom surface, conveniently weld the electric core of different models, and convenient production is compatible high.
Preferably, the battery cell production equipment comprises the battery cell spot welding device, a battery cell feeding device and a linear conveying assembly connected to the battery cell feeding device, wherein a plurality of groups of the battery cell spot welding devices are arranged on the battery cell feeding device along a battery cell feeding path; the linear conveying assembly is sequentially provided with a pole ear finding device, a pole ear shaping device, an upper gasket assembling device, a pole ear flattening device and a detecting and blanking device along a cell conveying path. Carry out processes such as material loading, electric core plastic, gasket equipment and detection unloading to electric core through electric core production facility and carry out the integration production, guarantee electric core equipment quality, degree of automation is high, improves production efficiency greatly.
Compared with the prior art, the beneficial effects of this application are: this application scheme is through first contact pin subassembly and the second contact pin subassembly that liftable set up, stretch into the centre bore of electric core through the sheath subassembly, and then the second contact pin subassembly passes the sheath subassembly and extends to electric core bottom surface, the spot end welding process is accomplished with the cooperation of first contact pin subassembly to the second contact pin subassembly, avoid error and the accident that manual operation plug needle welding caused, automatic spot welding improves production efficiency, prevent that the rosin joint from causing and scrapping, ensure welding quality, protect electric core centre bore inboard through the sheath subassembly simultaneously, prevent that second contact pin subassembly positional deviation from leading to damaging electric core centre bore inboard, guarantee the production quality of battery, improve the spot welding precision. Carry out processes such as material loading, electric core plastic, gasket equipment and detection unloading to electric core through electric core production facility and carry out the integration production, guarantee electric core equipment quality, degree of automation is high, improves production efficiency greatly.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It should be apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic structural diagram of a cell spot welding device according to an embodiment of the present application;
fig. 2 is a partially enlarged view of a cell spot welding device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a cell production apparatus according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an upper gasket mounting apparatus according to an embodiment of the present application;
FIG. 5 is an enlarged view of the upper gasket mounting apparatus of the embodiment of the present application;
fig. 6 is a schematic structural view of a tab shaping device according to an embodiment of the present application.
Reference numerals
1. A cell spot welding device; 10. a first pin assembly; 11. a first welding pin; 12. a first slider; 13. a first drive assembly; 131. a swing rod; 132. an eccentric wheel; 133. a roller; 134. a transmission connecting rod; 14. mounting a plate; 20. a second pin assembly; 21. a second welding pin; 22. mounting blocks; 221. mounting grooves; 23. connecting blocks; 30. a jacket assembly; 31. protecting the shell; 32. a fixed block; 33. an elastic member; 40. a displacement drive assembly; 41. a lifting drive member; 42. a second slider; 43. a support plate; 44. a second drive assembly; 45. A slide pedestal; 451. a slide rail; 46. a two-axis drive assembly; 2. a battery cell loading device; 3. a linear transport assembly; 4. a tab finding device; 5. a tab shaping device; 51. a clamping cylinder; 52. a clamping block; 53. an inclined surface; 6. a tab flattening device; 7. an upper gasket assembly device; 71. an unwinding assembly; 72. a buffer assembly; 73. a stamping assembly; 731. punching a platform; 732. a load-bearing platform; 733. a punching drive assembly; 734. A cutter; 74. a gasket feeding assembly; 741. an adsorbing member; 742. a turntable; 743. a vacuum suction assembly; 75. a waste collection assembly; 751. a drive roll; 752. a lifting cylinder; 753. a rubber roller; 8. and detecting a blanking device.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present application are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in this application are for descriptive purposes only, not specifically referring to the order or sequence, nor are they intended to limit the application, but merely to distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
For further understanding of the invention, its features and effects, the following examples are given in conjunction with the accompanying drawings and the following detailed description:
in the former assembly process, lower gasket and electric core are put into the shell, and the shell opening transports upwards, need stretch into the welding needle from the centre bore of electric core in this process and carry out the point bottom welding with electric core bottom, lower gasket and shell, and then pack into upper gasket at the electric core top for next step welding assembly process.
In order to solve the above technical problem, this embodiment provides a spot welding apparatus for a battery core, as shown in fig. 1, which includes a first pin assembly 10 that is arranged in a liftable manner and is used to support the battery core, a second pin assembly 20 that is arranged with a welding end facing the first pin assembly 10, and a displacement driving assembly 40 that drives the second pin assembly 20 to ascend and descend, wherein the second pin assembly 20 is arranged on the displacement driving assembly 40, a sheath assembly 30 that is used to insert the second pin assembly 20 is further arranged on the displacement driving assembly 40 and is located below the second pin assembly 20, the sheath assembly 30 is lifted up and pushed against the bottom of the battery core casing by the first pin assembly 10, and then the displacement driving assembly 40 drives the sheath assembly 30 and the second pin assembly 20 to descend toward the battery core simultaneously, and first extends into a central hole of the battery core through the sheath assembly 30, and then the second pin assembly 20 penetrates the sheath assembly 30 and extends to the bottom of the battery core, and then the second pin assembly 20 cooperates with the first pin assembly 10 to complete a bottom spot welding process, avoid the error and the accident that manual operation plug needle welding caused, automatic spot welding improves production efficiency, prevents that the rosin joint from causing and scrapping, ensures welding quality, protects electric core centre bore inboard through sheath subassembly 30 simultaneously, prevents that second contact pin subassembly 20 position deviation from leading to damaging electric core centre bore inboard, guarantees the production quality of battery, improves the spot welding precision.
Specifically, first contact pin subassembly 10 is including supporting in the first welding needle 11 of electric core, the first slider 12 that is used for installing first welding needle 11 and supplying first slider 12 to slide the mounting panel 14 that sets up, and first welding needle 11 is fixed to be set up in first slider 12 top surface, and first slider 12 is connected with and is used for driving first slider 12 gliding drive assembly 13 that goes up and down. The first sliding block 12 is driven by the first driving assembly 13 to slide up and down on the mounting plate 14, so that the first welding pins 11 on the first sliding block 12 abut against the bottom of the cell shell.
Further, the first driving assembly 13 includes an eccentric wheel 132 rotatably disposed, a swing rod 131 having a roller 133 disposed at a middle portion thereof, and a transmission link 134 connecting the first slider 12 and a swing end of the swing rod 131, wherein the roller 133 abuts against an outer peripheral surface of the eccentric wheel 132. One end of the swing rod 131 is pivoted and fixed, the swing end of the swing rod 131 is connected with the first sliding block 12 through the transmission connecting rod 134, the eccentric wheel 132 is connected with the bearing, and further connected with the bearing through the motor and the synchronous belt structure, when a plurality of driving assemblies are arranged and the eccentric wheels 132 are arranged, the synchronous rotation of the eccentric wheels 132 can be realized, and the purpose of synchronous lifting and moving is achieved.
In order to realize stretching into the centre bore of electric core and carry out spot welding, as shown in fig. 2, second contact pin subassembly 20 includes second welding pin 21, the installation piece 22 of adjustable installation second welding pin 21, and be used for fixed mounting piece 22 and set up connecting block 23 on displacement drive subassembly 40, be provided with on installation piece 22 and supply the vertical male mounting groove 221 of second welding pin 21, make mounting groove 221 press from both sides tightly to realize fixed second welding pin 21 through fasteners such as bolts, and then realize that the position of second welding pin 21 can be adjusted wantonly, and then adjust the length that second welding pin 21 stretches out installation piece 22 bottom surface, conveniently weld the electric core of different models, it is compatible high to make things convenient for production, the welding end of second welding pin 21 is towards in first contact pin subassembly 10. The mounting block 22 is fixedly arranged on the bottom surface of the connecting block 23, the connecting block 23 is arranged on the displacement driving assembly 40, and then the displacement driving assembly 40 drives the connecting block 23 to ascend and descend, so that the second welding needle 21 is driven to be inserted into the center hole of the battery core.
Furthermore, the displacement driving assembly 40 includes a second slider 42, a supporting plate 43 for the second slider 42 to slide, and a lifting driving member 41 for driving the second slider 42, the lifting driving member 41 is an air cylinder, the connecting block 23 is installed on the side of the second slider 42, the lifting driving member 41 drives the second slider 42 to slide on the supporting plate 43, and then drives the second welding pin 21 to move up and down.
In order to prevent the second welding pin 21 from being inserted into the center hole of the battery cell and then damaging the inner side of the center hole of the battery cell due to position deviation, a sheath assembly 30 for inserting the second welding pin 21 is further arranged on the displacement driving assembly 40 below the second welding pin 21, the sheath assembly 30 comprises a hollow protective shell 31 arranged between the second welding pin 21 and the first inserting pin assembly 10 and a fixing block 32 for installing the protective shell 31, and the fixing block 32 is connected to the displacement driving assembly 40 through an elastic piece. The protective shell 31 is a hollow structure, so that the second welding pin 21 can be inserted into the protective shell 31, the fixed block 32 is connected to the bottom surface of the second sliding block 42 through the elastic element 33, and the elastic element 33 is a compression spring.
Further, displacement drive assembly 40 drives sheath assembly 30 and second contact pin assembly 20 and descends towards electric core simultaneously, the protective shell 31 through sheath assembly 30 stretches into in the centre bore of electric core earlier, and then through the compression of elastic component 33, second contact pin assembly 20 continues to descend, make second welding needle 21 pass sheath assembly 30 and extend to electric core bottom surface, and then second welding needle 21 accomplishes the end welding process of some with first welding needle 11 cooperation, protect electric core centre bore inboard through sheath assembly 30, prevent that second contact pin assembly 20 position deviation from leading to damaging electric core centre bore inboard, guarantee the production quality of battery, improve spot welding precision.
Further, the displacement driving assembly 40 further comprises a slide pedestal 45 and a two-axis driving assembly 46 for driving the slide pedestal 45, a slide rail 451 is arranged on the slide pedestal 45 along the vertical direction, the support plate 43 is slidably arranged on the slide rail 451, one side of the support plate 43 is connected with a second driving assembly 44, the support plate 43 is driven by the second driving assembly 44 to ascend and descend on the slide pedestal 45, and further the whole body is driven to ascend and descend, wherein the second driving assembly 44 and the first driving assembly 13 have the same structure, and further the second driving assembly 44 and the first driving assembly 13 can simultaneously act through a motor and a synchronous belt structure, and further the first pin assembly 10 and the second pin assembly 20 synchronously operate. First drive assembly 13 drives first contact pin subassembly 10 to rise and leans on the electric core bottom, and second drive assembly 44 drives second contact pin subassembly 20 and sheath subassembly 30 simultaneously and descends to predetermineeing the height, and rethread lifting drive spare 41 drives second contact pin subassembly 20 and sheath subassembly 30 and stretches into the downthehole completion welding in the centre of electric core, and the action is orderly smooth and easy, guarantees the welding accuracy.
The embodiment also provides a cell production device, as shown in fig. 3, which includes the above-mentioned cell spot welding device 1, a cell feeding device 2, and a linear conveying assembly 3 connected to the cell feeding device 2, wherein a plurality of sets of cell spot welding devices 1 are arranged on the cell feeding device 2 along a cell feeding path, the cell feeding device 2 is a disc feeding device, and further a plurality of sets of cell spot welding devices 1 are arranged on the periphery of the disc to weld the cells simultaneously, so as to improve the production efficiency, the linear conveying assembly 3 is sequentially provided with a tab finding device 4, a tab shaping device 5, an upper gasket assembling device 7, a tab flattening device 6, and a detection blanking device 8 along the cell conveying path, when the cell welding is completed, the linear conveying assembly 3 is transferred to the linear conveying assembly 3 to be conveyed, and simultaneously the position of the cell tab is adjusted by the tab finding device 4, and the tab shaping device 5 shapes the cell tab, and then the upper gasket is assembled on the battery cell through the upper gasket assembling device 7, the lug is folded and flattened through the lug flattening device 6 after the assembly of the upper gasket is completed, whether the gasket is assembled in place or not is detected by the blanking device 8, and the detected defective products are selected out in time, so that the battery cell assembling quality is ensured, the production efficiency is improved, the working cost is saved, the battery cell is blanked, and the battery cell enters an assembling process.
Wherein, look for utmost point ear device 4 including the detection module that is used for detecting utmost point ear position, support and lean on in the global gyro wheel of electric core, drive gyro wheel pivoted rotary drive subassembly, rotate through rotary drive subassembly drive gyro wheel and drive electric core and rotate, and then adjust electric core to the exact position for the utmost point ear position of adjustment electric core, detection module detect utmost point ear after targetting in place rotary drive subassembly stall, reach the purpose of the utmost point ear position of adjustment. The tab flattening device 6 horizontally pushes the push block, and then the push block horizontally moves to flatten the tabs of the battery core.
Before assembling the gasket, the tab of the battery cell needs to be stretched outwards to avoid interference when assembling the gasket, and for this purpose, as shown in fig. 6, the tab shaping device 5 includes a clamping block 52 and a clamping cylinder for driving the clamping block 52 to clamp the tab at the top of the battery cell, the clamping cylinder is arranged on the vertical plate in a lifting and sliding manner, and a clamping surface of the clamping block 52 is formed with an inclined surface 53 for enabling the tab to incline towards the periphery of the battery cell. The clamp splice 52 realizes the centre gripping action through clamping cylinder 51, through the inclined plane 53 centre gripping utmost point ear of clamp splice 52, rethread drive clamp splice 52 goes up and down, and then realizes leaning out the plastic with the pole piece of electric core, takes place to interfere when then realizing avoiding follow-up equipment gasket through the utmost point ear plastic to electric core and causes utmost point ear bending or gasket assembly not in place, guarantees the assembly quality.
In order to realize automatic cutting and feeding of the upper gasket, as shown in fig. 4-5, the upper gasket assembly device 7 includes an unwinding assembly 71 for unwinding a gasket material tape, and a buffering assembly 72, a punching assembly 73, a gasket feeding assembly 74 and a waste collecting assembly 75 which are sequentially arranged along a gasket material tape conveying path, where the punching assembly 73 is used for cutting and forming the upper gasket, and the gasket feeding assembly 74 transfers the upper gasket to the electric core of the linear conveying assembly 3. Wherein, buffering subassembly 72 is the pulley that goes up and down to set up, and the gasket material area is around on the pulley, and then goes up and down to realize carrying out the buffer memory to the gasket material area through the pulley, avoids the gasket material area to receive too big tension to lead to the fracture. Cut gasket material area into predetermined shape through punching press subassembly 73, rethread gasket material loading subassembly 74 shifts the gasket to the electric core of sharp conveying assembly 3 on, automatic cutting and material loading gasket, improve material loading efficiency greatly to and ensure the accuracy of gasket material loading position.
Specifically, the stamping and feeding assembly 73 includes a carrying platform 732 for supporting the gasket material tape, a punching platform 731 capable of moving toward the carrying platform 732, and a cutting knife 734 installed on the punching platform 731, wherein the bottom of the punching platform 731 is connected with a punching driving assembly 733, and the carrying platform 732 is provided with a through hole for the cutting knife 734 to pass through. The cutter 734 is a circular cutter, the shape of the through hole of the bearing platform 732 is matched with that of the cutter 734, the gasket material belt passes through the bearing platform 732, the punching driving component 733 drives the punching platform 731 to lift up, so that the cutter 734 on the punching platform 731 penetrates through the through hole and extends out of the table top of the bearing platform 732, the gasket material belt on the bearing platform 732 is punched into the shape of the cutter 734, and the punched upper gasket is transferred to the battery cell of the linear conveying component 3 through the gasket material feeding component 74, so that the gasket material feeding assembly is completed.
Further, the gasket feeding assembly 74 includes a rotating disk 742, a plurality of adsorbing members 741 annularly disposed on the rotating disk 742 and configured to adsorb the upper gasket, and a vacuum absorbing assembly 743 disposed on the rotating disk 742 and connected to the adsorbing members 741. Realize adsorbing the piece 741 and produce the vacuum through inhaling vacuum subassembly 743, and then adsorb die-cut fashioned last gasket of 741, go up and down and rotate through drive carousel 742, realize going up the gasket and transfer to the electric core of sharp conveyor assembly 3 on, and then improve the material loading efficiency of going up the gasket.
Further, waste materials of the punched gasket material belt are collected through the waste material collecting assembly 75, wherein the waste material collecting assembly 75 comprises a rubber roller 753, a lifting cylinder 752 for driving the rubber roller 753 to press down the gasket material belt, and a driving roller 751 for driving the gasket material belt to advance and convey, the rubber roller 753 is driven to press down through the lifting cylinder 752, the gasket material belt is attached to the driving roller 751, and conveying efficiency is improved. The waste material is cut by a cutting knife 754 provided at the end and collected.
To sum up, in one or more embodiments of this application, but first contact pin subassembly and second contact pin subassembly that this application scheme set up through the liftable, stretch into the centre bore of electric core through the sheath subassembly, and then the second contact pin subassembly passes the sheath subassembly and extends to electric core bottom surface, the spot end welding process is accomplished in the cooperation of second contact pin subassembly and first contact pin subassembly, avoid error and the accident that manual operation plug needle welding caused, automatic spot welding improves production efficiency, prevent that the rosin joint from causing and scrapping, ensure welding quality, protect electric core centre bore inboard through the sheath subassembly simultaneously, prevent that second contact pin subassembly position deviation from leading to damaging electric core centre bore inboard, guarantee the production quality of battery, improve the spot welding precision. The processes of feeding, shaping, gasket assembling, detecting, discharging and the like are carried out on the battery core through the battery core production equipment to carry out integrated production, the battery core assembling quality is ensured, and the production efficiency is greatly improved.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides a electricity core spot welding device for to being formed with the electric core of centre bore carry out spot welding, its characterized in that: the device comprises a first contact pin assembly (10) which is arranged in a lifting manner and used for supporting the bottom of a battery core, a second contact pin assembly (20) of which the welding end faces the first contact pin assembly (10), and a displacement driving assembly (40) for driving the second contact pin assembly (20) to lift, wherein a sheath assembly (30) for inserting the second contact pin assembly (20) is arranged on the displacement driving assembly (40); the displacement driving assembly (40) drives the sheath assembly (30) to extend into the central hole of the battery cell, and the second pin assembly (20) penetrates through the sheath assembly (30) and extends to the bottom surface of the battery cell to complete welding.
2. The cell spot welding device according to claim 1, characterized in that: the first contact pin assembly (10) comprises a first welding pin (11) supported on the battery core, a first sliding block (12) used for installing the first welding pin (11) and a mounting plate (14) used for the first sliding block (12) to slide, and the first sliding block (12) is connected with a first driving assembly (13) used for driving the first sliding block (12) to ascend and descend.
3. The cell spot welding device according to claim 2, characterized in that: the first driving assembly (13) comprises an eccentric wheel (132) which is rotatably arranged, a swing rod (131) of which the middle part is provided with a roller (133), and a transmission connecting rod (134) which is connected with the first sliding block (12) and the swing end of the swing rod (131), wherein the roller (133) is abutted against the peripheral surface of the eccentric wheel (132).
4. The cell spot welding device according to claim 1, characterized in that: the second pin assembly (20) comprises a second welding pin (21), a mounting block (22) for adjustably mounting the second welding pin (21), and a connecting block (23) which is used for fixing the mounting block (22) and is arranged on the displacement driving assembly (40); the welding end of the second welding pin (21) faces the first pin assembly (10).
5. The cell spot welding device according to claim 4, characterized in that: the sheath assembly (30) comprises a hollow protective shell (31) arranged between the second welding pin (21) and the first inserting pin assembly (10) and a fixing block (32) used for installing the protective shell (31), and the fixing block (32) is connected with the displacement driving assembly (40) through an elastic piece (33).
6. The cell spot welding device according to claim 5, characterized in that: the displacement driving assembly (40) comprises a second sliding block (42), a supporting plate (43) for the second sliding block (42) to slide, and a lifting driving piece (41) for driving the second sliding block (42); the connecting block (23) and the fixing block (32) are arranged on the second sliding block (42).
7. The cell spot welding device according to claim 6, characterized in that: the displacement driving assembly (40) further comprises a two-axis driving assembly (46) and a sliding base (45) arranged on the two-axis driving assembly (46), and the supporting plate (43) is arranged on the sliding base (45) in a sliding mode.
8. The cell spot welding device according to claim 7, characterized in that: the sliding rail (451) for the supporting plate (43) to slide is arranged on the sliding base (45), and a second driving assembly (44) for driving the supporting plate (43) to slide along the sliding rail (451) is connected to the supporting plate (43).
9. The cell spot welding device according to claim 4, characterized in that: the mounting block (22) is provided with a mounting groove (221) for the second welding pin (21) to be vertically inserted; the second welding pin (21) can be arranged in the mounting groove (221) in a position-adjustable manner.
10. The utility model provides a electricity core production facility which characterized in that: the battery cell spot welding device comprises the battery cell spot welding device (1) of any one of claims 1 to 9, a battery cell feeding device (2) and a linear conveying assembly (3) connected to the battery cell feeding device (2), wherein a plurality of groups of the battery cell spot welding devices (1) are arranged on the battery cell feeding device (2) along a battery cell feeding path; the linear conveying assembly (3) is sequentially provided with a pole lug finding device (4), a pole lug shaping device (5), an upper gasket assembling device (7), a pole lug flattening device (6) and a detection blanking device (8) along a cell conveying path.
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| CN202111448833.0A CN114083185A (en) | 2021-11-25 | 2021-11-25 | Electricity core spot welding device and electricity core production facility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111448833.0A CN114083185A (en) | 2021-11-25 | 2021-11-25 | Electricity core spot welding device and electricity core production facility |
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| CN114083185A true CN114083185A (en) | 2022-02-25 |
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Application publication date: 20220225 |