CN112975088A - Resistance welding equipment for battery tab - Google Patents
Resistance welding equipment for battery tab Download PDFInfo
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- CN112975088A CN112975088A CN202110463530.XA CN202110463530A CN112975088A CN 112975088 A CN112975088 A CN 112975088A CN 202110463530 A CN202110463530 A CN 202110463530A CN 112975088 A CN112975088 A CN 112975088A
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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
- B23K11/00—Resistance welding; Severing by resistance heating
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
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- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to the field of resistance welding, in particular to resistance welding equipment for a battery tab. The invention aims to provide a resistance welding device for a battery tab. A resistance welding device for a battery tab comprises a welding wire pulling and positioning system and the like; the welding system is connected with the power system. The invention utilizes a resistance welding mode to weld the electric wire of the lug of the lithium battery, realizes accurate and stable welding which cannot be achieved by the traditional welding means, simultaneously monitors the temperature of the lithium battery in real time in the welding process, and avoids explosion caused by overhigh temperature of the lithium battery in the welding process; carry out the strict positioning to melting of welding wire and control, reduce the irregular flow of welding wire melt back liquid, improve the welding area of electric wire and make the connection between battery utmost point ear and the electric wire inseparable, avoid welded in-process to make the tin piece take place to drop.
Description
Technical Field
The invention relates to the field of resistance welding, in particular to resistance welding equipment for a battery tab.
Background
Resistance welding is a method of welding by locally heating a workpiece and applying pressure thereto while using resistance heat generated by passing current through the workpiece and a contact portion as a heat source. During welding, metal does not need to be filled, the production efficiency is high, the deformation of a weldment is small, and the automation is easy to realize; resistance welding uses the effect of electrical resistance heating produced by current flowing through the contact surfaces and adjacent areas of the workpieces to heat them to a molten or plastic state to form a metallic bond.
The power lithium cell is before using, need weld the electric wire in order to reach remote power transmission on two utmost point ears, but the welding of lithium cell needs strict operation, traditional resistance welding means can't accomplish accurate stable welding to the utmost point ear of lithium cell, and can make the tin piece take place to drop at the welded in-process, cause the damage of lithium cell, mechanical welding means can't utilize the scaling powder to carry out the fast and stable welding simultaneously, make the connection between battery utmost point ear and the electric wire inseparable, the electric wire very easily takes place to drop.
In view of the above problems, there is an urgent need for a resistance welding apparatus for battery tabs.
Disclosure of Invention
In order to overcome the defects that wires need to be welded on two tabs to achieve remote power transmission before a power lithium battery is used, but the welding of the lithium battery needs strict operation, the tabs of the lithium battery cannot be accurately and stably welded by the traditional resistance welding means, and the tin sheets fall off in the welding process to cause the damage of the lithium battery, meanwhile, the mechanical welding means cannot utilize soldering flux to quickly and stably weld, so that the connection between the tabs of the battery and the wires is not tight enough, and the wires are easy to fall off, the invention aims to provide resistance welding equipment for the tabs of the battery.
The technical scheme is as follows: a resistance welding device for a battery tab comprises a base, a supporting bottom plate, a control screen, a fixing system, a welding wire pulling and positioning system, a welding system and a power system; a group of bases is respectively arranged at four opposite angles at the bottom of the supporting bottom plate; the supporting bottom plate is connected with the control screen; the supporting bottom plate is connected with the fixing system; the supporting bottom plate is connected with the welding system; the supporting bottom plate is connected with a power system; the welding wire pulling and positioning system is connected with the welding system; the welding system is connected with the power system.
As a further preferable scheme, the fixing system comprises a carrying plate, a first positioning block, a second positioning block, a first electric push rod, a first clamping plate, a second electric push rod, a second clamping plate, a first bevel gear, a first screw rod, a temperature sensor, a first connecting plate, a first straight slide rail, a second bevel gear, a second screw rod and a limiting rod; the carrying plate is welded with the first positioning block; the object carrying plate is welded with the second positioning block; the carrying plate is connected with the first electric push rod through a bolt; the object carrying plate is connected with the second electric push rod through a bolt; the carrying plate is rotationally connected with the first screw rod; the carrying plate is fixedly connected with the first straight slide rail; the carrying plate is connected with the second screw rod in a rotating mode; the carrying plate is connected with the limiting rod in a sliding manner; the first electric push rod is fixedly connected with the first clamping plate; the second electric push rod is fixedly connected with the second clamping plate; the first bevel gear is fixedly connected with the first screw rod; the first screw rod is in screwed connection with the first connecting plate; the temperature sensor is fixedly connected with the first connecting plate; the first connecting plate is in sliding connection with the first straight slide rail; two groups of first straight slide rails are symmetrically arranged; the second bevel gear is fixedly connected with the second screw rod; the second screw rod is rotatably connected with the supporting bottom plate through a bracket; the limiting rod is fixedly connected with the supporting bottom plate through a bracket.
As a further preferable scheme, the welding wire pulling and positioning system comprises a welding wire winding roller, a support frame, a hollow frame, a first fixing plate, a first electric slide rail, a first slide block, a first rubber block, an electric rotating shaft, a first connecting rod, an arc-shaped slide rail, a third connecting block and a second rubber block; the welding wire winding roller is rotatably connected with the support frame; the support frame is fixedly connected with the hollow frame; the support frame is connected with the welding system; a first fixing plate is arranged on the side surface of the hollow frame; the first fixing plate is connected with the first electric slide rail through a bolt; the first fixing plate is connected with the welding system; the first electric sliding rail is in sliding connection with the first sliding block; the first sliding block is fixedly connected with the first rubber block; the first sliding block is rotationally connected with the electric rotating shaft; the first sliding block is fixedly connected with the arc-shaped sliding rail; the electric rotating shaft is fixedly connected with the first connecting rod; the first connecting rod is in sliding connection with the arc-shaped sliding rail through a connecting sleeve; the first connecting rod is rotatably connected with the third connecting block; the third connecting block is fixedly connected with the second rubber block.
As a further preferable scheme, the welding system comprises a portal frame, a first driving wheel, a second driving wheel, a driving rod, a loop bar, a third bevel gear, a first supporting plate, a third electric push rod, a fourth bevel gear, a second connecting plate, a second connecting rod, a second fixing plate, a second straight slide rail, a hydraulic rod, a small welding head, a liquid storage tank, a first liquid conveying pipe, an electric valve, a second liquid conveying pipe, a second electric slide rail, a second sliding block, a fourth electric push rod and a clamping plate; the portal frame is rotationally connected with the first driving wheel through a short rotating shaft; the portal frame is rotationally connected with the transmission rod; the portal frame is connected with the third electric push rod through a bolt; the portal frame is rotationally connected with the second connecting plate; the portal frame is fixedly connected with the second straight sliding rail for bolt connection; the portal frame is fixedly connected with the liquid storage tank; the portal frame is sleeved with the first infusion tube; the portal frame is sleeved with the second infusion tube; the portal frame is connected with the second electric slide rail through bolts; the portal frame is fixedly connected with the supporting bottom plate; the portal frame is fixedly connected with the support frame; the portal frame is fixedly connected with the first fixing plate; the outer ring surface of the first driving wheel is in transmission connection with the second driving wheel through a belt; the first driving wheel is connected with a power system; the second driving wheel is fixedly connected with the transmission rod; the transmission rod is connected with the loop bar; the sleeve rod is fixedly connected with the third bevel gear; the loop bar is rotationally connected with the first supporting plate; the first supporting plate is fixedly connected with the third electric push rod; a fourth bevel gear is arranged on the side surface of the third bevel gear; the fourth bevel gear is fixedly connected with the second connecting plate; the second connecting plate is rotatably connected with the second connecting rod; the second connecting rod is rotatably connected with the second fixing plate; the second fixed plate is in sliding connection with the second straight sliding rail; the second fixing plate is connected with the hydraulic rod through a bolt; the hydraulic rod is fixedly connected with the small welding head; the liquid storage tank is in threaded connection with the first liquid conveying pipe; the first infusion tube is fixedly connected with the electric valve; the electric valve is fixedly connected with the second infusion tube; the second electric slide rail is in sliding connection with the second slide block; the second sliding block is connected with a fourth electric push rod through a bolt; the fourth electric push rod is fixedly connected with the clamping plate.
As a further preferable scheme, the power system comprises a motor, an output shaft, a fifth bevel gear, a shaft sleeve, a third driving wheel, a sixth bevel gear, a second supporting plate and a fifth electric push rod; the motor is fixedly connected with the output shaft; the motor is connected with the supporting bottom plate through bolts; the output shaft is fixedly connected with a fifth bevel gear and a third driving wheel in sequence; the output shaft is connected with the shaft sleeve; the output shaft is rotationally connected with the supporting bottom plate through a bracket; the shaft sleeve is fixedly connected with a sixth bevel gear; the shaft sleeve is rotatably connected with the second supporting plate; the outer ring surface of the third driving wheel is in transmission connection with the first driving wheel through a belt; the second supporting plate is fixedly connected with the fifth electric push rod; and the fifth electric push rod is connected with the supporting bottom plate through a bolt.
As a further preferable scheme, one side of the second infusion tube is conical, and a rectangular groove and a ball head stop block are arranged at the end part of one side of the second infusion tube.
As a further preferable scheme, a sponge is arranged on the lower end face of the external connecting plate on one side of the second sliding block, and a sponge is arranged on the upper end face of the clamping plate.
As a further preferred solution, the output shaft is provided with a hexagonal shaft rod near the third transmission wheel.
The invention has the following advantages: the fixing system is designed, the power lithium battery is connected and clamped on two sides, then one side of the lithium battery is tightly attached to the temperature sensor, the temperature change of the lithium battery in the tab welding process is monitored in real time, and finally the lithium battery is conveyed and positioned to the welding position;
the welding wire pulling and positioning system is designed, the welding wire is continuously pulled to enter a position between the tab and the small welding head, and the supply of the welding wire is realized;
the invention designs a welding system, wherein a small welding head is utilized to firstly fuse a small-knot welding wire, then a tab of a lithium battery is preheated, and when the melting degree of the welding wire is enough, two drops of soldering flux are dropped in, and then the resistance welding of a wire and the tab is realized;
the invention designs a power system, and when each system needs power, the power system operates to provide power for transmission;
the welding method disclosed by the invention has the advantages that the electric wire is welded on the tab of the lithium battery in a resistance welding mode, the accurate and stable welding which cannot be achieved by the traditional welding means is realized, the welding speed is increased by using the soldering flux, meanwhile, the temperature of the lithium battery is monitored in real time in the welding process, and the explosion caused by overhigh temperature of the lithium battery in the welding process is avoided; carry out the strict positioning to melting of welding wire and control, reduce the irregular flow of welding wire melt back liquid, improve the welding area of electric wire and make the connection between battery utmost point ear and the electric wire inseparable, avoid welded in-process to make the tin piece take place to drop.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of a second embodiment of the present invention;
FIG. 3 is a schematic perspective view of a first embodiment of the fastening system of the present invention;
FIG. 4 is a schematic perspective view of a second embodiment of the fastening system of the present invention;
FIG. 5 is a schematic perspective view of the wire pulling positioning system of the present invention;
FIG. 6 is an enlarged schematic view of the invention at G;
FIG. 7 is a schematic view of a first perspective view of the welding system of the present invention;
FIG. 8 is a schematic view of a second embodiment of the welding system of the present invention;
FIG. 9 is a third perspective view of the welding system of the present invention;
FIG. 10 is an enlarged schematic view of the invention at F;
fig. 11 is a schematic perspective view of the power system of the present invention.
Number designation in the figures: 1-a base, 2-a supporting bottom plate, 3-a control screen, 4-a fixing system, 5-a welding wire pulling and positioning system, 6-a welding system, 7-a power system, 401-a carrying plate, 402-a first positioning block, 403-a second positioning block, 404-a first electric push rod, 405-a first clamping plate, 406-a second electric push rod, 407-a second clamping plate, 408-a first bevel gear, 409-a first screw rod, 4010-a temperature sensor, 4011-a first connecting plate, 4012-a first straight slide rail, 4013-a second bevel gear, 4014-a second screw rod, 4015-a limiting rod, 501-a welding wire winding roller, 502-a supporting frame, 503-a hollow frame, 504-a first fixing plate and 505-a first electric slide rail, 506-a first slide block, 507-a first rubber block, 508-an electric rotating shaft, 509-a first connecting rod, 5010-an arc-shaped sliding rail, 5011-a third connecting block, 5012-a second rubber block, 601-a portal frame, 602-a first driving wheel, 603-a second driving wheel, 604-a driving rod, 605-a loop bar, 606-a third bevel gear, 607-a first supporting plate, 608-a third electric push rod, 609-a fourth bevel gear, 6010-a second connecting plate, 6011-a second connecting rod, 6012-a second fixing plate, 6013-a second straight sliding rail, 6014-a hydraulic rod, 6015-a small infusion tube, 6016-a welding head, 6017-a first infusion tube, 6018-an electric valve, 6019-a second valve, 6020-a second electric sliding rail, 6021-a second slide block, 6022-fourth electric push rod, 6023-clamping plate, 701-motor, 702-output shaft, 703-fifth bevel gear, 704-shaft sleeve, 705-third driving wheel, 706-sixth bevel gear, 707-second supporting plate, 708-fifth electric push rod.
Detailed Description
The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections (couplings).
Example 1
A resistance welding device for battery tabs is shown in figures 1-11 and comprises a base 1, a supporting bottom plate 2, a control screen 3, a fixing system 4, a welding wire pulling and positioning system 5, a welding system 6 and a power system 7; a group of bases 1 are respectively arranged at four opposite angles of the bottom of the supporting bottom plate 2; the supporting bottom plate 2 is connected with the control screen 3; the supporting bottom plate 2 is connected with a fixing system 4; the supporting bottom plate 2 is connected with a welding system 6; the supporting bottom plate 2 is connected with a power system 7; the welding wire pulling and positioning system 5 is connected with the welding system 6; the welding system 6 is connected with a power system 7.
Before the device runs, the device is placed in a stable working place, the telescopic height of the base 1 is adjusted, so that the supporting base plate 2 is in a horizontal state, a power supply is externally connected, an operator manually operates the control screen 3 to start the device, the running transmission condition among all systems is checked, and the device is closed after the situation that no running problem occurs is confirmed; the device is externally connected with a lithium battery conveying device, the control screen 3 is operated again to start the device, the power lithium battery is received and clamped on two sides by the fixing system 4, then the power lithium battery is tightly attached to the temperature sensor 4010 on one side of the lithium battery, the temperature change of the lithium battery in the tab welding process is monitored in real time, and finally the lithium battery is conveyed and positioned to a welding position; when the lithium battery is positioned to one side of the welding wire pulling and positioning system 5, the welding wire pulling and positioning system 5 starts to operate, and the welding wire is continuously pulled to enter between the tab and the small welding head 6015, so that the supply of the welding wire is realized; then, the welding system 6 starts to operate, a small welding wire is firstly fused by using a small welding head 6015, then the tab of the lithium battery is preheated, and when the welding wire is fused to a sufficient degree, two drops of soldering flux are dripped, and then resistance welding of the wire and the tab is realized; the power system 7 operates to provide power transmission when each system needs power; the welding method disclosed by the invention has the advantages that the electric wire is welded on the tab of the lithium battery in a resistance welding mode, the accurate and stable welding which cannot be achieved by the traditional welding means is realized, the welding speed is increased by using the soldering flux, meanwhile, the temperature of the lithium battery is monitored in real time in the welding process, and the explosion caused by overhigh temperature of the lithium battery in the welding process is avoided; carry out the strict positioning to melting of welding wire and control, reduce the irregular flow of welding wire melt back liquid, improve the welding area of electric wire and make the connection between battery utmost point ear and the electric wire inseparable, avoid welded in-process to make the tin piece take place to drop.
The fixing system 4 comprises an object carrying plate 401, a first positioning block 402, a second positioning block 403, a first electric push rod 404, a first clamping plate 405, a second electric push rod 406, a second clamping plate 407, a first bevel gear 408, a first screw rod 409, a temperature sensor 4010, a first connecting plate 4011, a first straight slide rail 4012, a second bevel gear 4013, a second screw rod 4014 and a limiting rod 4015; the loading plate 401 is welded with the first positioning block 402; the loading plate 401 is welded with the second positioning block 403; the loading plate 401 is connected with a first electric push rod 404 through a bolt; the loading plate 401 is connected with a second electric push rod 406 through a bolt; the loading plate 401 is rotatably connected with a first screw rod 409; the carrying plate 401 is fixedly connected with the first straight slide rail 4012; the object carrying plate 401 is connected with a second screw 4014 in a screwing way; the object carrying plate 401 is in sliding connection with the limiting rod 4015; the first electric push rod 404 is fixedly connected with the first clamping plate 405; the second electric push rod 406 is fixedly connected with the second clamping plate 407; the first bevel gear 408 is fixedly connected with a first screw rod 409; the first screw rod 409 is rotatably connected with the first connecting plate 4011; the temperature sensor 4010 is fixedly connected with the first connecting plate 4011; the first connecting plate 4011 is in sliding connection with a first straight slide rail 4012; two groups of first straight slide rails 4012 are symmetrically arranged; the second bevel gear 4013 is fixedly connected with a second screw rod 4014; the second screw 4014 is rotatably connected with the support base plate 2 through a bracket; the limiting rod 4015 is fixedly connected with the support base plate 2 through a bracket.
An external power lithium battery conveying device places a lithium battery on an object carrying plate 401, one side of the lithium battery is respectively contacted with a first positioning block 402 and a second positioning block 403 at the moment, then a first electric push rod 404 operates to drive a first clamping plate 405 to move to clamp the other side of the lithium battery, meanwhile, a second electric push rod 406 drives a second clamping plate 407 to move to be tightly attached to the other side of the lithium battery, so that the lithium battery is in a fixed state, because a first bevel gear 408 is meshed with a fifth bevel gear 703 in the lithium battery loading process, a motor 701 operates to drive the fifth bevel gear 703 to rotate, the fifth bevel gear 703 drives the first bevel gear 408 to drive a first screw rod 409 to rotate, the first screw rod 409 drives a first connecting plate 4011 to move on two groups of first straight slide rails 4012, a temperature sensor 4010 is contacted with one side of the lithium battery in the following moving process, the temperature of the lithium battery is accurately monitored, then a sixth bevel gear 706 in the power system 7 is meshed with a second bevel gear 4013 in the moving process, the second bevel gear 4013 drives a second screw 4014 to rotate after power is obtained, the second screw 4014 drives a carrying plate 401 to slide on a limiting rod 4015, and the lug of the lithium battery is positioned to a position needing to be welded; this system accepts the power lithium cell and both sides press from both sides tightly, hugs closely temperature-sensing ware 4010 in one side of lithium cell afterwards, and the temperature variation of real-time supervision lithium cell in utmost point ear welding process realizes carrying of lithium cell to fix a position to the welding position at last.
The welding wire pulling and positioning system 5 comprises a welding wire winding roller 501, a supporting frame 502, a hollow frame 503, a first fixing plate 504, a first electric slide rail 505, a first slide block 506, a first rubber block 507, an electric rotating shaft 508, a first connecting rod 509, an arc-shaped slide rail 5010, a third connecting block 5011 and a second rubber block 5012; the welding wire winding roller 501 is rotatably connected with the supporting frame 502; the supporting frame 502 is fixedly connected with the hollow frame 503; the support 502 is connected with the welding system 6; a first fixing plate 504 is arranged on the side surface of the hollow frame 503; the first fixing plate 504 is bolted to the first electric slide rail 505; the first fixing plate 504 is connected with the welding system 6; the first electric slide rail 505 is connected with the first slide block 506 in a sliding manner; the first sliding block 506 is fixedly connected with the first rubber block 507; the first sliding block 506 is rotatably connected with the electric rotating shaft 508; the first sliding block 506 is fixedly connected with the arc-shaped sliding rail 5010; the electric rotating shaft 508 is fixedly connected with the first connecting rod 509; the first connecting rod 509 is connected with the arc-shaped sliding rail 5010 in a sliding manner through a connecting sleeve; the first connecting rod 509 is rotatably connected with the third connecting block 5011; the third connecting block 5011 is fixedly connected with the second rubber block 5012.
When the lithium battery is positioned at one side of the welding wire winding roller 501, a first electric slide rail 505 connected with a first fixing plate 504 starts to operate to drive a first slide block 506 to move, the first slide block 506 enables a first rubber block 507 to contact the welding wire made by the hollow frame 503 in the moving process, then an electric rotating shaft 508 operates to drive a first connecting rod 509 to rotate, the first connecting rod 509 slides on an arc-shaped slide rail 5010 and drives a third connecting block 5011 to move, a second rubber block 5012 is matched with the first rubber block 507 in the following moving process to clamp the welding wire, then the first electric slide rail 505 drives the first slide block 506 to return, the welding wire drives the welding wire winding roller 501 to rotate on a supporting frame 502 in the pulling process to realize the supply of the welding wire, and then when one end of the welding wire is level with the side 601601of the small welding head 5 close to the third bevel gear 606, the electric rotating shaft 508 reversely rotates, and releasing the welding wire, thereby achieving positioning of the welding wire for subsequent melting.
The welding system 6 comprises a portal frame 601, a first driving wheel 602, a second driving wheel 603, a driving rod 604, a sleeve rod 605, a third bevel gear 606, a first supporting plate 607, a third electric push rod 608, a fourth bevel gear 609, a second connecting plate 6010, a second connecting rod 6011, a second fixing plate 6012, a second straight slide rail 6013, a hydraulic rod 6014, a small welding head 6015, a liquid storage tank 6016, a first liquid conveying pipe 6017, an electric valve 6018, a second liquid conveying pipe 6019, a second electric slide rail 6020, a second slide block 6021, a fourth electric push rod 6022 and a clamping plate 6023; the portal frame 601 is rotatably connected with the first driving wheel 602 through a short rotating shaft; the portal frame 601 is rotatably connected with the transmission rod 604; the portal frame 601 is connected with a third electric push rod 608 through a bolt; the portal frame 601 is rotatably connected with the second connecting plate 6010; the portal frame 601 is fixedly connected with a second straight slide rail 6013 for bolt connection; the portal frame 601 is fixedly connected with the liquid storage tank 6016; the gantry 601 is sleeved with the first infusion tube 6017; the portal frame 601 is sleeved with a second infusion tube 6019; the portal frame 601 is in bolted connection with a second electric slide rail 6020; the portal frame 601 is fixedly connected with the supporting base plate 2; the portal frame 601 is fixedly connected with the support frame 502; the gantry 601 is fixedly connected with the first fixing plate 504; the outer ring surface of the first driving wheel 602 is in transmission connection with a second driving wheel 603 through a belt; the first driving wheel 602 is connected with the power system 7; the second driving wheel 603 is fixedly connected with the driving rod 604; the transmission rod 604 is connected with the loop bar 605; the loop bar 605 is fixedly connected with the third bevel gear 606; the loop bar 605 is rotatably connected with the first supporting plate 607; the first support plate 607 is fixedly connected with a third electric push rod 608; a fourth bevel gear 609 is arranged on the side surface of the third bevel gear 606; the fourth bevel gear 609 is fixedly connected with a second connecting plate 6010; the second connecting plate 6010 is rotatably connected to a second link 6011; the second connecting rod 6011 is rotatably connected to the second fixing plate 6012; the second fixing plate 6012 is slidably connected to a second straight rail 6013; the second fixing plate 6012 is bolted to the hydraulic rod 6014; the hydraulic rod 6014 is fixedly connected with a small welding head 6015; the liquid storage tank 6016 is in threaded connection with a first liquid conveying pipe 6017; the first infusion tube 6017 is fixedly connected with the electric valve 6018; the electric valve 6018 is fixedly connected with the second infusion tube 6019; the second electric slide rail 6020 is connected with the second slide block 6021 in a sliding manner; the second slide block 6021 is connected with the fourth electric push rod 6022 through a bolt; the fourth electric push rod 6022 is fixedly connected with the clamp plate 6023.
After the welding wire is prepared, the hydraulic rod 6014 operates to drive the small welding head 6015 to move to contact with the welding wire, then the small welding head 6015 melts the welding wire, the hydraulic rod 6014 drives the small welding head 6015 to move to be not contacted with the uppermost end of the lithium battery tab and provide no pressure, then the third electric push rod 608 operates to drive the first support plate 607 to move, the sleeve rod 605 drives the third bevel gear 606 to be meshed with the fourth bevel gear 609 in the following movement process, the first driving wheel 602 obtains power from the third driving wheel 705 to drive the second driving wheel 603 to rotate, the second driving wheel 603 drives the driving rod 604 to drive the sleeve rod 605 to rotate, the sleeve rod 605 drives the third bevel gear 606 to drive the fourth bevel gear 609, the fourth bevel gear 609 drives the second connecting plate 6010 to drive the second connecting rod 6011, the second connecting rod 6011 drives the second fixing plate 6012 to make reciprocating linear motion on the second straight slide rail 6013, and the hydraulic rod 6014 and the small welding head 6015 follow the same, because the small welding head 6015 is positioned at the upper end of the tab, the small welding head 6015 preheats the tab of the power lithium battery in the reciprocating linear motion process, after the preheating is completed, the small welding head 6015 is positioned right above the tab of the battery, then the third electric push rod 608 realizes return stroke, so that the third bevel gear 606 is disengaged from the fourth bevel gear 609, then in the repeated operation process of the welding wire pulling and positioning system 5, the hydraulic rod 6014 also drives the small welding head 6015 to intermittently move up and down, after the preparation of the welding liquid is completed, the fixing system 4 drives the power lithium battery to be positioned right below the second infusion tube 6019, then the electric valve 6018 operates to enable the soldering liquid in the liquid storage tank 6016 to be transported to the second infusion tube 6019 from the first infusion tube 6017, and simultaneously controls the flow of the soldering liquid, so that the soldering liquid drips from the second infusion tube 6019 in a water-drip manner onto the tab of the, then, the battery tab is positioned under the small-sized welding head 6015 again, the fourth electric push rod 6022 operates to drive the clamping plate 6023 to move at the moment, the external electric wire is clamped, then the second electric slide rail 6020 drives the second slide block 6021 to move, the electric wire is positioned to the upper end face of the battery tab in the following moving process, then the hydraulic rod 6014 pushes the small-sized welding head 6015 to move to melt the welding wire and provide certain pressure at the same time, so that the electric wire is stably connected with the welding liquid, and the process is repeated three to four times to weld the battery tab and the electric wire; the system utilizes a small welding head 6015 to fuse a small-knot welding wire first, then preheats the lug of the lithium battery, and when the melting degree of the welding wire is enough, two drops of soldering flux are dripped, and then resistance welding of the wire and the lug is achieved.
The power system 7 comprises a motor 701, an output shaft 702, a fifth bevel gear 703, a shaft sleeve 704, a third driving wheel 705, a sixth bevel gear 706, a second supporting plate 707 and a fifth electric push rod 708; the motor 701 is fixedly connected with the output shaft 702; the motor 701 is connected with the support base plate 2 through bolts; the output shaft 702 is fixedly connected with a fifth bevel gear 703 and a third driving wheel 705 in sequence; the output shaft 702 is connected with a sleeve 704; the output shaft 702 is rotatably connected with the support base plate 2 through a bracket; the shaft sleeve 704 is fixedly connected with a sixth bevel gear 706; the shaft sleeve 704 is rotatably connected with a second supporting plate 707; the outer ring surface of the third driving wheel 705 is in driving connection with the first driving wheel 602 through a belt; the second supporting plate 707 is fixedly connected with the fifth electric push rod 708; the fifth electric push rod 708 is bolted to the support base 2.
When other systems need power, the motor 701 drives the output shaft 702 to rotate, the output shaft 702 drives the fifth bevel gear 703 and the third driving wheel 705 to rotate, the fifth bevel gear 703 drives the fixing system 4 to realize power transmission between the systems, the corresponding third driving wheel 705 drives the welding system 6 to realize power transmission between the systems, and when the lithium battery transmission process is controlled, the fifth electric push rod 708 pushes the second support plate 707 to move, the second support plate 707 drives the shaft sleeve 704 to slide on the output shaft 702, meanwhile, the output shaft 702 drives the shaft sleeve 704 to drive the sixth bevel gear 706 to rotate, and when the sixth bevel gear 706 is meshed with the second bevel gear 4013, the lithium battery is moved and positioning is completed; the system operates to provide power delivery when each system requires power.
One side of the second infusion tube 6019 is tapered, and a rectangular groove and a ball head stop block are arranged at the end part of one side.
The flux is favorable for forming a water drop shape, and the welding is more quickly formed.
The lower end face of the outer connecting plate at one side of the second slide block 6021 is provided with sponge, and the upper end face of the clamping plate 6023 is provided with sponge.
The stable centre gripping of electric wire is favorable to for the electric wire can not take place the aversion at the in-process of welding.
The output shaft 702 is provided with a hexagonal shaft near the third driving wheel 705.
Facilitating sliding of the sleeve 704 while providing stable power delivery.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (8)
1. A resistance welding device for a battery tab comprises a base (1), a supporting bottom plate (2) and a control screen (3); the method is characterized in that: the welding wire drawing and positioning device also comprises a fixing system (4), a welding wire drawing and positioning system (5), a welding system (6) and a power system (7); a group of bases (1) is respectively arranged at four opposite angles of the bottom of the supporting bottom plate (2); the supporting bottom plate (2) is connected with the control screen (3); the supporting bottom plate (2) is connected with the fixing system (4); the supporting bottom plate (2) is connected with a welding system (6); the supporting bottom plate (2) is connected with a power system (7); the welding wire pulling and positioning system (5) is connected with the welding system (6); the welding system (6) is connected with the power system (7).
2. The resistance welding apparatus of a battery tab as claimed in claim 1, wherein: the fixing system (4) comprises an object carrying plate (401), a first positioning block (402), a second positioning block (403), a first electric push rod (404), a first clamping plate (405), a second electric push rod (406), a second clamping plate (407), a first bevel gear (408), a first screw rod (409), a temperature sensor (4010), a first connecting plate (4011), a first straight slide rail (4012), a second bevel gear (4013), a second screw rod (4014) and a limiting rod (4015); the loading plate (401) is welded with the first positioning block (402); the object carrying plate (401) is welded with the second positioning block (403); the loading plate (401) is connected with a first electric push rod (404) through a bolt; the loading plate (401) is connected with a second electric push rod (406) through a bolt; the loading plate (401) is rotationally connected with the first screw rod (409); the carrying plate (401) is fixedly connected with the first straight slide rail (4012); the object carrying plate (401) is connected with a second screw rod (4014) in a rotating mode; the carrying plate (401) is in sliding connection with the limiting rod (4015); the first electric push rod (404) is fixedly connected with the first clamping plate (405); the second electric push rod (406) is fixedly connected with the second clamping plate (407); the first bevel gear (408) is fixedly connected with a first screw rod (409); the first screw rod (409) is connected with the first connecting plate (4011) in a rotating mode; the temperature sensor (4010) is fixedly connected with the first connecting plate (4011); the first connecting plate (4011) is in sliding connection with the first straight slide rail (4012); two groups of first straight slide rails (4012) are symmetrically arranged; the second bevel gear (4013) is fixedly connected with a second screw rod (4014); the second screw rod (4014) is rotatably connected with the supporting base plate (2) through a bracket; the limiting rod (4015) is fixedly connected with the supporting bottom plate (2) through a bracket.
3. The resistance welding apparatus of a battery tab as claimed in claim 2, wherein: the welding wire pulling and positioning system (5) comprises a welding wire winding roller (501), a support frame (502), a hollow frame (503), a first fixing plate (504), a first electric slide rail (505), a first slide block (506), a first rubber block (507), an electric rotating shaft (508), a first connecting rod (509), an arc-shaped slide rail (5010), a third connecting block (5011) and a second rubber block (5012); the welding wire winding roller (501) is rotatably connected with the support frame (502); the supporting frame (502) is fixedly connected with the hollow frame (503); the support frame (502) is connected with the welding system (6); a first fixing plate (504) is arranged on the side surface of the hollow frame (503); the first fixing plate (504) is connected with a first electric slide rail (505) through a bolt; the first fixing plate (504) is connected with the welding system (6); the first electric slide rail (505) is in sliding connection with the first slide block (506); the first sliding block (506) is fixedly connected with the first rubber block (507); the first sliding block (506) is rotationally connected with the electric rotating shaft (508); the first sliding block (506) is fixedly connected with an arc-shaped sliding rail (5010); the electric rotating shaft (508) is fixedly connected with the first connecting rod (509); the first connecting rod (509) is in sliding connection with the arc-shaped sliding rail (5010) through a connecting sleeve; the first connecting rod (509) is in rotary connection with the third connecting block (5011); the third connecting block (5011) is fixedly connected with the second rubber block (5012).
4. A resistance welding apparatus for a battery tab as claimed in claim 3, wherein: the welding system (6) comprises a portal frame (601), a first transmission wheel (602), a second transmission wheel (603), a transmission rod (604), a loop bar (605), a third bevel gear (606), a first supporting plate (607), a third electric push rod (608), a fourth bevel gear (609), a second connecting plate (6010), a second connecting rod (6011), a second fixing plate (6012), a second straight slide rail (6013), a hydraulic rod (6014), a small welding head (6015), a liquid storage tank (6016), a first liquid conveying pipe (6017), an electric valve (6018), a second liquid conveying pipe (6019), a second electric slide rail (6020), a second sliding block (6021), a fourth electric push rod (6022) and a clamping plate (6023); the portal frame (601) is rotationally connected with the first driving wheel (602) through a short rotating shaft; the portal frame (601) is rotationally connected with the transmission rod (604); the portal frame (601) is connected with a third electric push rod (608) through a bolt; the portal frame (601) is rotatably connected with the second connecting plate (6010); the portal frame (601) is fixedly connected with a second straight slide rail (6013) for bolt connection; the portal frame (601) is fixedly connected with the liquid storage tank (6016); the portal frame (601) is sleeved with a first infusion tube (6017); the portal frame (601) is sleeved with a second infusion tube (6019); the portal frame (601) is connected with the second electric slide rail (6020) through a bolt; the portal frame (601) is fixedly connected with the supporting bottom plate (2); the portal frame (601) is fixedly connected with the support frame (502); the portal frame (601) is fixedly connected with the first fixing plate (504); the outer ring surface of the first transmission wheel (602) is in transmission connection with a second transmission wheel (603) through a belt; the first driving wheel (602) is connected with the power system (7); the second driving wheel (603) is fixedly connected with the driving rod (604); the transmission rod (604) is connected with the loop bar (605); the loop bar (605) is fixedly connected with the third bevel gear (606); the loop bar (605) is rotationally connected with the first supporting plate (607); the first supporting plate (607) is fixedly connected with a third electric push rod (608); a fourth bevel gear (609) is arranged on the side surface of the third bevel gear (606); the fourth bevel gear (609) is fixedly connected with a second connecting plate (6010); the second connecting plate (6010) is rotatably connected with a second connecting rod (6011); the second connecting rod (6011) is rotatably connected with the second fixing plate (6012); the second fixing plate (6012) is connected with the second straight slide rail (6013) in a sliding mode; the second fixing plate (6012) is in bolted connection with the hydraulic rod (6014); the hydraulic rod (6014) is fixedly connected with a small welding head (6015); the liquid storage tank (6016) is in threaded connection with a first liquid conveying pipe (6017); the first infusion tube (6017) is fixedly connected with an electric valve (6018); the electric valve (6018) is fixedly connected with a second infusion tube (6019); the second electric slide rail (6020) is connected with the second slide block (6021) in a sliding way; the second slide block (6021) is connected with a fourth electric push rod (6022) through a bolt; the fourth electric push rod (6022) is fixedly connected with the splint (6023).
5. The resistance welding apparatus of a battery tab as claimed in claim 4, wherein: the power system (7) comprises a motor (701), an output shaft (702), a fifth bevel gear (703), a shaft sleeve (704), a third transmission wheel (705), a sixth bevel gear (706), a second support plate (707) and a fifth electric push rod (708); the motor (701) is fixedly connected with the output shaft (702); the motor (701) is connected with the supporting bottom plate (2) through bolts; an output shaft (702) is fixedly connected with a fifth bevel gear (703) and a third driving wheel (705) in sequence; the output shaft (702) is connected with the shaft sleeve (704); the output shaft (702) is rotationally connected with the supporting base plate (2) through a bracket; the shaft sleeve (704) is fixedly connected with the sixth bevel gear (706); the shaft sleeve (704) is rotatably connected with the second supporting plate (707); the outer ring surface of the third driving wheel (705) is in transmission connection with the first driving wheel (602) through a belt; the second supporting plate (707) is fixedly connected with a fifth electric push rod (708); the fifth electric push rod (708) is connected with the support bottom plate (2) through a bolt.
6. The resistance welding apparatus of a battery tab as claimed in claim 5, wherein: one side of the second infusion tube (6019) is conical, and the end part of one side is provided with a rectangular groove and a ball head stop block.
7. The resistance welding apparatus of a battery tab as claimed in claim 6, wherein: the lower end face of the external connecting plate at one side of the second sliding block (6021) is provided with sponge, and the upper end face of the clamping plate (6023) is provided with sponge.
8. The resistance welding apparatus of a battery tab as claimed in claim 7, wherein: a section of hexagonal shaft rod is arranged at the position of the output shaft (702) close to the third driving wheel (705).
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| CN202110463530.XA CN112975088B (en) | 2021-04-28 | 2021-04-28 | Resistance welding equipment for battery tab |
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|---|---|---|---|
| CN202110463530.XA CN112975088B (en) | 2021-04-28 | 2021-04-28 | Resistance welding equipment for battery tab |
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| CN112975088B CN112975088B (en) | 2021-07-30 |
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| CN114054951A (en) * | 2021-12-01 | 2022-02-18 | 深圳市晨皓达科技有限公司 | Welding device of automatic laser-beam welding machine of new energy battery pack |
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| CN112975088B (en) | 2021-07-30 |
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