CN204747761U - Lithium ion battery extremely has burning ears and presses welding mechanism and welding system - Google Patents
Lithium ion battery extremely has burning ears and presses welding mechanism and welding system Download PDFInfo
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- CN204747761U CN204747761U CN201520433695.2U CN201520433695U CN204747761U CN 204747761 U CN204747761 U CN 204747761U CN 201520433695 U CN201520433695 U CN 201520433695U CN 204747761 U CN204747761 U CN 204747761U
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Abstract
The utility model provides a lithium ion battery extremely has burning ears and presses welding mechanism and welding system. Its welding mechanism includes: cylinder, upper die base, bonding tool clamp splice, electromagnetic induction bonding tool, high frequency electric source ware, circulation water pitcher and die holder, the die holder is located the upper die base below, and the die holder is used for placing utmost point ear and pole piece, and utmost point ear is placed and treat welded utmost point ear position on the pole piece, cylinder, high frequency electric source ware and circulation water pitcher set up respectively on the upper die base, and the cylinder stretches out the directional die holder of end, the setting of bonding tool clamp splice the cylinder stretch out the terminal surface of end on, and the electromagnetic induction bonding tool is embedded in the bonding tool clamp splice, it produces alternating magnetic field to be connected through electromagnetic induction bonding tool and high frequency electric source ware to make the low -melting -point alloy melting on utmost point ear surface, and irritate the cooling water cooling low -melting -point alloy who is connected the circulation by electromagnetic induction bonding tool and circulating water, thereby realize adopting simple and easy hot pressing mode to weld, solve among the ultrasonic bonding utmost point ear welding ends department easily rosin joint of emergence or the problem of burn -through.
Description
Technical field
The utility model relates to lithium ion battery production technical field, particularly relates to a kind of lithium ion cell polar ear thermal compression welding mechanism and welding system.
Background technology
At present, along with the high speed development of new-energy automobile, lithium ion battery is also increasingly extensive in the application of new-energy automobile, and the production of lithium ion battery also more and more comes into one's own.
In lithium ion battery, be provided with the lug for outwardly derived current, battery is a point both positive and negative polarity, and lug is exactly the metallic conductor extracted by both positive and negative polarity from the battery core of lithium ion battery, and lug is also the contact point when carrying out discharge and recharge.This contact point is not merely the copper sheet of lithium ion battery appearance, and connects for the one of lithium ion battery inside.Particularly, one end of lug is connected with pole piece, and the other end exports to the external world.At present, the welding of lug mainly adopts ultrasonic welding process lug two ends to be welded respectively lug position to be welded on pole piece.So-called ultrasonic welding process is mechanical movement high-frequency electrical energy being converted into again equal frequencies by transducer, and mechanical movement is subsequently delivered to soldering tip by a set of wire bonding that can change amplitude.The vibrational energy received is delivered to the junction surface of workpiece to be welded by soldering tip, and in this region, vibrational energy is converted to heat energy by by friction mode.
But realizing in process of the present utility model, inventor finds that prior art at least exists following shortcoming: in the process of existing ultrasonic bonding lug, and rosin joint or burn-through problem easily occur at tab welding end place.
Utility model content
The utility model provides a kind of lithium ion cell polar ear thermal compression welding mechanism and welding system, rosin joint or burn-through problem easily occurs, to improve the security of battery production with tab welding end place in the process overcoming ultrasonic bonding lug.
The utility model provides a kind of lithium ion cell polar ear thermal compression welding mechanism, comprising: cylinder, upper bolster, soldering tip fixture block, electromagnetic induction soldering tip, high frequency electric source device, circulation water pot and die shoe; Described die shoe is positioned at below described upper bolster, and described die shoe is for placing lug and pole piece, and described lug is placed on lug position to be welded on described pole piece; Described cylinder, described high frequency electric source device and described circulation water pot are separately positioned on described upper bolster, and described high frequency electric source device is positioned at the centre of described cylinder and described circulation water pot; Described cylinder external part points to described die shoe, and described soldering tip fixture block is arranged on the end face of the external part of described cylinder, and described electromagnetic induction soldering tip is embedded in described soldering tip fixture block; Described cylinder can drive described soldering tip fixture block to move to the direction of described die shoe;
Described electromagnetic induction soldering tip is connected with described high frequency electric source device, for generation of alternating magnetic field, to make the low-melting alloy melting on described lug surface, and described lug is sticked to the lug position described to be welded on described pole piece; The inside of described electromagnetic induction soldering tip is also communicated with described circulation water pot, with when described electromagnetic induction soldering tip and described high frequency electric source device disconnect, described electromagnetic induction soldering tip moves downward the described lug of contact under the driving of described cylinder, and by low-melting alloy described in the water quench in described electromagnetic induction soldering tip.
Further, in lithium ion cell polar ear thermal compression welding mechanism as above, described electromagnetic induction soldering tip is square hollow copper pipe, and the inside of described square hollow copper pipe is communicated with described circulation water pot, the described cooling water that can circulate in described circulation water pot.
Further, in lithium ion cell polar ear thermal compression welding mechanism as above, also comprise the first mistake roller, and described first mistake roller is arranged on the side plate for connecting described upper bolster and described die shoe, and with described die shoe in same level;
The front panel of described high frequency electric source device is also provided with switching high-frequency power and high frequency electric source frequency knob, and display.
The utility model also provides a kind of lithium ion cell polar ear thermal compression welding system, comprise lithium ion cell polar ear thermal compression welding mechanism as above, also comprise: tab unreeling mechanism, sealant testing agency, first send lug mechanism, tab cutting mechanism, second send lug mechanism and dipping mechanism, described tab unreeling mechanism, described sealant testing agency, described first send lug mechanism, described tab cutting mechanism, described second send lug mechanism, described dipping mechanism and described lithium ion cell polar ear thermal compression welding mechanism, be installed on base, and successively described lug is processed according to the order being from upstream to downstream, realize the thermal compression welding of described lug.
Further, in lithium ion cell polar ear thermal compression welding system as above, described tab unreeling mechanism comprises lug plait mill, back-up ring, the first servomotor, at least one second mistake roller, guide rail, buffer sliding block, upper limit inductor, lower limit inductor, support and limited support notch board; Described support is fixedly mounted on described base, described first servomotor and described lug plait mill are arranged on the end of described support respectively and are symmetricly set on described support both sides, described back-up ring is arranged on the core outer end of described lug plait mill, with fixing described lug plait mill; Described at least one second cross roller arrange on the bracket, region between described lug plait mill and described base, to arrange the traction route of the lug band of drawing from described lug plait mill; Described guide rail is arranged on the bracket, and perpendicular to described base; Described guide rail is provided with buffer sliding block, and the upper and lower two ends of described guide rail are respectively arranged with described upper limit inductor and described lower limit inductor; Described buffer sliding block can be slided between described upper limit inductor and described lower limit inductor along described guide rail, and described buffer sliding block is provided with one described second roller excessively, to draw described lug Tape movement; Described support notch board is arranged on described base, and the upper surface of described support notch board and described support described second of least significant end cross roller in the same horizontal line, to support crossing from described second the described lug band that roller draws.
Further, in lithium ion cell polar ear thermal compression welding system as above, described sealant testing agency comprises the first support plate, fastening bolt, the first cylinder, at least one tong and triangle and refers to; Described first support plate is vertically fixed on described base, and described first cylinder is fixed on the upper end of described first support plate by described fastening bolt; At least one tong described is arranged on the external part of described first cylinder; And each described tong is also provided with described triangle refers to.
Further, in lithium ion cell polar ear thermal compression welding system as above, described tab cutting mechanism comprises the seat of honour, the 3rd cylinder, lower seat, guide pillar, stamping-out cutter, reject chute and punching and blanking die; Described lower seat is arranged on described base, and the described seat of honour is fixed on described lower seat by described guide pillar; Described 3rd cylinder is arranged on the described seat of honour, and described stamping-out cutter is arranged on the external part of described 3rd cylinder, and the external part of described 3rd cylinder is towards the direction of described lower seat; Described punching and blanking die is arranged on described lower seat upper surface, and is provided with described reject chute below described lower seat inside, described punching and blanking die.
Further, in lithium ion cell polar ear thermal compression welding system as above, described first send lug mechanism to comprise upper bracket, the second cylinder, briquetting, lower bottom base, the second servomotor and the first leading screw; Described first leading screw is arranged between described first support plate and described lower seat; Described lower bottom base is arranged on described first leading screw, and described lower bottom base can slide between described first support plate and described lower seat along described leading screw; Described upper bracket is arranged on described lower bottom base, and perpendicular to described base; Described second cylinder is arranged on described upper bracket top, and the external part of described second cylinder is towards described lower bottom base direction, and described briquetting is arranged on the external part of described second cylinder.
Further, in lithium ion cell polar ear thermal compression welding system as above, described second send lug mechanism to comprise the 3rd servomotor, at least one manipulator and the second leading screw; At least one manipulator described is arranged on described second screw mandrel, and described 3rd servomotor is connected with described second leading screw, to drive described second leading screw to rotate, to drive at least one robot movement described.
Further, in lithium ion cell polar ear thermal compression welding system as above, described dipping mechanism comprises upper cylinder, lower cylinder, lower dipping block, upper holder block, the second support plate, scaling powder flow container and outer pneumatic supply; Described second support plate is vertically set on described base, and described upper cylinder is arranged on the top of described second support plate, and the external part of described upper cylinder is towards the direction of described base; Described upper holder block is arranged on the end of the external part of described upper cylinder; Described lower cylinder is positioned at below described upper cylinder; The external part of described lower cylinder is towards the direction of described upper cylinder; Described lower dipping block is arranged on the end of the external part of described lower cylinder; Described scaling powder flow container is connected with described lower dipping block, thinks that described lower dipping block provides described scaling powder; Described outer pneumatic supply is used for treating that the described lug of dipping blows the gas being greater than standard atmospheric pressure;
Described lower dipping block is arranged on described lower cylinder external part, and described upper holder block is arranged on described upper cylinder external part; Described upper cylinder and described lower cylinder are arranged on described support plate, and described support plate is vertically fixed on described base; Described scaling powder flow container is arranged on described support plate by side bottom, and described outer pneumatic supply is arranged on bottom described scaling powder flow container.
Lithium ion cell polar ear thermal compression welding mechanism of the present utility model and welding system, the low-melting alloy melting of the lug root weld position in magnetic field can be made according to the alternating magnetic field of high frequency electric source device electric current generation, after power-off, alternating magnetic field disappears, low-melting alloy to be connected at electromagnetic induction soldering tip the cooling water circulated cooling effect with circulation water pot will be solidified, finally realize tab welding to the lug position to be welded on pole piece, the problem of the incident rosin joint in tab welding end place or burn-through in ultrasonic bonding of the prior art can be avoided, thus realize adopting easy hot pressing mode to carry out thermal compression welding, not only simple to operation, and it is very firm by the lithium ion battery tab welding mechanism welding of the present embodiment, the problem of rosin joint or burn-through can not be there is.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of lithium ion cell polar ear thermal compression welding mechanism of the present utility model embodiment;
Fig. 2 is the front view of Fig. 1 embodiment;
The left view of Fig. 3 to be Fig. 1 be embodiment;
Fig. 4 is the structural representation of lithium ion cell polar ear thermal compression welding system embodiment of the present utility model;
Fig. 5 is the front view of Fig. 4 embodiment;
Fig. 6 is the top view of Fig. 4 embodiment.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of lithium ion cell polar ear thermal compression welding mechanism of the present utility model embodiment, and Fig. 2 is the front view of Fig. 1 embodiment, the left view of Fig. 3 to be Fig. 1 be embodiment.
As shown in Figure 1, 2, the lithium ion cell polar ear thermal compression welding mechanism 7 of the present embodiment can comprise: upper bolster 7-1, soldering tip fixture block 7-2, electromagnetic induction soldering tip 7-3, high frequency electric source device 7-4, circulation water pot 7-5 and die shoe 7-7; Die shoe 7-7 is positioned at below upper bolster 7-1, and die shoe 7-7 is for placing lug and pole piece, and lug is placed on lug position to be welded on pole piece; The lug of the present embodiment, through pretreatment, has scribbled low-melting alloy layer on the surface, and has also scribbled sealant (sealant).Low-melting alloy layer wherein on lug realizes welding between lug and the collector at lug position to be welded place on pole piece.Cylinder 7-0, high frequency electric source device 7-4 and circulation water pot 7-5 are separately positioned on upper bolster 7-1, and high frequency electric source device 7-4 is positioned at the centre of cylinder 7-0 and circulation water pot 7-5; Cylinder 7-0 external part points to die shoe 7-7, and soldering tip fixture block 7-2 is arranged on the end face of the external part of cylinder 7-0, and electromagnetic induction soldering tip 7-3 is embedded in soldering tip fixture block 7-2; Cylinder 7-0 can drive soldering tip fixture block 7-2 to move to the direction of die shoe 7-7.
Further, thermal compression welding mechanism also comprises the first mistake roller 7-6, and the first mistake roller 7-6 is arranged on the side plate for connecting upper bolster 7-1 and die shoe 7-7, and with die shoe 7-7 in same level, for placing material to be welded.
Further alternatively as shown in Figure 3, in the lithium ion cell polar ear thermal compression welding mechanism of the present embodiment, the front panel of high frequency electric source device 7-4 can also be provided with switching high-frequency power 7-9 and high frequency electric source frequency knob 7-10, and display 7-8, switching high-frequency power 7-9 are for controlling opening and closedown of high frequency electric source device 7-4; The size of alternating magnetic field that high frequency electric source frequency knob 7-10 produces for controlling alternating current, the frequency of real work that what display 7-8 showed is.
Electromagnetic induction soldering tip 7-3 is connected with high frequency electric source device 7-4, high frequency electric source device 7-4 is energized, electromagnetic induction soldering tip 7-3 produces alternating magnetic field, to make the low-melting alloy heating melting on lug surface, and the lug position to be welded sticked to by lug on pole piece, thus realize welding between lug with the collector to be welded on lug position to be welded on pole piece; High frequency electric source 7-4 power-off subsequently.In using, if low-melting alloy does not have melting, adjustable high frequency electric source frequency knob 7-10 increases alternating magnetic field to make low-melting alloy heating melting.
Further, electromagnetic induction soldering tip 7-3 is square hollow copper pipe, and the inside of electromagnetic induction soldering tip 7-3 square hollow copper pipe is also communicated with circulation water pot 7-5, can cooling water in circulation cycle water pot 7-5.With when electromagnetic induction soldering tip 7-3 and high frequency electric source device 7-4 disconnects, electromagnetic induction soldering tip 7-3 moves downward contact lug under the driving of cylinder 7-0, and by the water quench low-melting alloy in electromagnetic induction soldering tip 7-3, low-melting alloy is solidified.Finally realize welding between lug with pole piece lug position to be welded.After completing welding, electromagnetic induction soldering tip 7-3 is with horizontal reset in the driving of cylinder 7-0.
The lithium ion battery tab welding mechanism of the present embodiment, the low-melting alloy melting of the lug root weld position in magnetic field can be made according to the alternating magnetic field of high frequency electric source device electric current generation, after power-off, alternating magnetic field disappears, low-melting alloy to be connected at electromagnetic induction soldering tip the cooling water circulated cooling effect with circulation water pot will be solidified, finally realize tab welding to the lug position to be welded on pole piece, the problem of the incident rosin joint in tab welding end place or burn-through in ultrasonic bonding of the prior art can be avoided, thus realize adopting easy hot pressing mode to carry out thermal compression welding, not only simple to operation, and it is very firm by the lithium ion battery tab welding mechanism welding of the present embodiment, the problem of rosin joint or burn-through can not be there is.
Fig. 4 is the structural representation of lithium ion cell polar ear thermal compression welding system embodiment of the present utility model, and Fig. 5 is the front view of Fig. 4 embodiment, and Fig. 6 is the top view of Fig. 4 embodiment; The lithium ion cell polar ear thermal compression welding system of the present embodiment comprise above-mentioned Fig. 1-embodiment illustrated in fig. 3 lithium ion cell polar ear thermal compression welding mechanism 7, with reference to the record of above-described embodiment, can repeat no more in detail herein.
Particularly, as shown in Figure 5, the lithium ion cell polar ear thermal compression welding system of the present embodiment, can comprise according to the processing technological flow of lug: tab unreeling mechanism 1, sealant testing agency 2, first send lug mechanism 3, tab cutting mechanism 4, second send lug mechanism 5 and dipping mechanism 6; After wherein lithium ion cell polar ear thermal compression welding mechanism 7 is positioned at dipping mechanism 6, for after the 6 pairs of lug process of dipping mechanism, thermal compression welding is carried out to lug.Tab unreeling mechanism 1, sealant testing agency 2, first send lug mechanism 3, tab cutting mechanism 4, second send lug mechanism 5, dipping mechanism 6 and lithium ion cell polar ear thermal compression welding mechanism 7, be installed on base 1-10, and in order to easy to operate, be arranged on base 1-10 successively according to the processing sequence being from upstream to downstream, to facilitate, lug is processed, realize the thermal compression welding of lug.
Particularly, as shown in Figure 4, tab unreeling mechanism 1 comprises lug plait mill 1-1, back-up ring 1-2, the first servomotor 1-3, at least one second mistake roller 1-4, guide rail 1-5, buffer sliding block 1-6, upper limit inductor 1-7, lower limit inductor 1-8, support 1-9 and limited support notch board 1-11; Support 1-9 is fixedly mounted on base 1-10, and the first servomotor 1-3 and lug plait mill 1-1 is arranged on the end of support 1-9 respectively and is symmetricly set on support 1-9 both sides, and lug plait mill 1-1 moves under the driving of the first servomotor 1-3; Back-up ring 1-2 is arranged on the core outer end of lug plait mill 1-1, with fixing lug plait mill 1-1; At least one second mistake roller 1-4 is arranged on support 1-9, between lug plait mill 1-1 and base 1-10 region, such as in the embodiment as shown in fig .4, roller 1-4 is crossed to describe structure of the present utility model to be provided with seven second, in practical application, the quantity that second crosses roller 1-4 can be set according to the actual requirements.Multiple second crosses the traction route that roller 1-4 are provided with the lug band of drawing from lug plait mill 1-1, and the lug that traction is drawn from lug plait mill 1-1 is to limited support notch board 1-11; Guide rail 1-5 is arranged on support 1-9, and perpendicular to base 1-10, and cross between roller 1-4 multiple second; Guide rail 1-5 is provided with buffer sliding block 1-6, and this buffer sliding block 1-6 is provided with one second and crosses roller 1-4, the upper and lower two ends of guide rail 1-5 are respectively arranged with upper limit inductor 1-7 and lower limit inductor 1-8; Buffer sliding block 1-6 can slide between upper limit inductor 1-7 and lower limit inductor 1-8 along guide rail 1-5, and the second mistake roller 1-4 on buffer sliding block 1-6 can draw lug Tape movement, buffer sliding block 1-6 in tab unreeling mechanism 1 can send signal to the first servomotor 1-3 through upper limit inductor 1-7 and lower limit inductor 1-8 inductor, the first servomotor rotates according to signal or stops operating and realizes steady blowing; Limited support notch board 1-11 is arranged on base 1-10, and the upper surface of limited support notch board 1-11 and support 1-9 second of least significant end cross roller 1-4 in the same horizontal line, to draw the lug band that 1-4 goes out support crossing roller from second.
Particularly, as shown in Figure 4, sealant (sealant) testing agency 2 comprises the first support plate 2-0, fastening bolt 2-1, the first cylinder 2-2, at least one tong and triangle and refers to 2-5; Sealant testing agency 2 is for detecting on lug whether have sealant, and sealant is insulation, if do not have sealant, so triangle refers to that 2-5 will directly contact with the lug of metal material and turn-on current provides signal.First support plate is vertically fixed on base, and the first cylinder 2-2 is fixed on the upper end of the first support plate by fastening bolt; In the present embodiment, at least one tong as above tong 2-3 and lower tong 2-4 be arranged on the 2-2 external part of the first cylinder; And each tong as above tong 2-3 and lower tong 2-4 is also provided with triangle refers to 2-5, triangle refers to that 2-5 and limited support notch board 1-11 is in same level, is convenient to the transmission of lug band.Triangle on the upper tong 2-3 of sealant testing agency 2 and lower tong 2-4 refers to 2-5, under the driving of the first cylinder 2-2 with on tong 2-3 and lower tong 2-4 move the sealant adding and be held in lug band 1-0, sealant realizes the encapsulation between follow-up lug and Pocket.When lug band disappearance sealant, triangle refers to that 2-5 then contacts lug band 1-0 and sends current signal and makes alarm equipment alarm abnormal.
Particularly, as shown in Figure 4 and Figure 5, tab cutting mechanism 4 comprises seat of honour 4-6, the 3rd cylinder 4-0, lower seat 4-2, guide pillar 4-1, stamping-out cutter 4-3, reject chute 4-4 and punching and blanking die 4-5; Lower seat 4-2 is arranged on base 1-10, and seat of honour 4-6 is fixed on lower seat 4-2 by guide pillar 4-1; 3rd cylinder 4-0 is arranged on the 4-6 of the seat of honour, and stamping-out cutter 4-3 is arranged on the external part of the 3rd cylinder 4-0, and the external part of the 3rd cylinder 4-0 is towards the direction of lower seat 4-2; Punching and blanking die 4-5 is arranged on lower seat 4-2 upper surface, and the upper surface of lower seat 4-2 and the upper surface of lower bottom base 3-3, triangle refer to that 2-5 and limited support notch board 1-11 is in same level, is convenient to the transmission of lug band; And reject chute 4-4 is provided with below lower seat 4-2 inside, punching and blanking die 4-5,3rd cylinder 4-0 drives stamping-out cutter 4-3 descending, at stamping-out cutter 4-3 and the stamping-out realizing lug band 1-0 under the cooperation of punching and blanking die 4-5, the waste material after stamping-out enters in reject chute 4-4.
Particularly, as shown in Figure 4 and Figure 6, first lug mechanism is sent to comprise upper bracket 3-2, the second cylinder 3-0, briquetting, lower bottom base 3-3, the second servomotor 3-4 and the first leading screw 3-5; First leading screw 3-5 is arranged between the first support plate 2-0 and thermal compression welding mechanism 7; Lower bottom base 3-3 is arranged on the first leading screw 3-5, and lower bottom base 3-3 can slide between the first support plate 2-0 and lower seat 4-2 along the first leading screw 3-5; Upper bracket 3-2 is arranged on lower bottom base 3-3, and perpendicular to base 1-10, the upper surface of lower bottom base 3-3 and triangle refer to that 2-5 and limited support notch board 1-11 is in same level, is convenient to the transmission of lug band; Second cylinder 3-0 is arranged on upper bracket 3-2 top, and the external part of the second cylinder 3-0 is towards lower bottom base 3-3 direction, and briquetting is arranged on the external part of the second cylinder 3-0.In the present embodiment, briquetting 3-1 compresses lug band 1-0 under the driving of the second cylinder 3-0, and move along leading screw 3-5 under the driving of the second servomotor 3-4 with lower bottom base 3-3, lug band 1-0 is sent into dipping mechanism 6, complete the return under the driving of the second cylinder 3-0 of the briquetting 3-1 after feeding, and withdraw reset with the reverse drive of servomotor 3-4 along leading screw 3-5.
Particularly, as shown in Figure 4 and Figure 5, second lug mechanism 5 is sent to comprise the 3rd servomotor 5-0, at least one manipulator and the second leading screw 5-3; At least one manipulator is arranged on the second screw mandrel, such as manipulator has the first manipulator 5-1 and the second manipulator 5-2 in the present embodiment, 3rd servomotor 5-0 is connected with the second leading screw 5-3, and to drive the second leading screw to rotate, the first manipulator 5-1 and the second manipulator 5-2 moves.Further, the upper surface of the first manipulator 5-1, the second manipulator 5-2 and the second leading screw 5-3 and lower seat 4-2, the upper surface of lower bottom base 3-3, triangle refer to 2-5 and support notch board 1-11 in same level, are convenient to the transmission of lug band; First manipulator 5-1 and the second manipulator 5-2 clamps lug band 1-0 under the 3rd servomotor 5-0 drives, and moves under the driving of the 3rd servomotor 5-0 with the second leading screw 5-3, thus realizes feeding process.
Particularly, as shown in Figure 4 and Figure 5, dipping mechanism 6 comprises upper cylinder 6-0, lower cylinder 6-1, lower dipping block 6-2, upper holder block 6-3, the second support plate 6-4, scaling powder flow container 6-5 and outer pneumatic supply 6-6; Second support plate 6-4 is vertically set on base 1-10, and upper cylinder 6-0 is arranged on the top of the second support plate 6-4, and the external part of upper cylinder 6-0 is towards the direction of base 1-10; Upper holder block 6-3 is arranged on the end of the external part of upper cylinder 6-0; Lower cylinder 6-1 is positioned at below upper cylinder 6-0; The external part of lower cylinder 6-1 is towards the direction of upper cylinder 6-0; Lower dipping block 6-2 is arranged on the end of the external part of lower cylinder 6-1; Scaling powder flow container 6-5 is connected with lower dipping block 6-2, thinks that lower dipping block 6-2 provides scaling powder; Scaling powder is for reducing by wlding surface tension, promotes pole piece base material and welding between low-melting alloy.It is different from low-melting alloy, and main component is one or more mixing compositions in ketone, alcohols and ester class.Outer pneumatic supply 6-6 is used for being greater than the accurate atmospheric gas of the lower dipping block of mark to treating that the lug of dipping blows, thus to prevent in dipping process dust and impurities left in lug dipping district, for follow-up welding provides better welding surroundings.Lower dipping block 6-2 is arranged on lower cylinder 6-1 external part, and upper holder block 6-3 is arranged on upper cylinder 6-0 external part; Upper cylinder 6-0 and lower cylinder 6-1 is arranged on the second support plate 6-4, and the second support plate 6-4 is vertically fixed on base 1-10; Scaling powder flow container 6-5 is arranged on the second support plate 6-4 side bottom, and outer pneumatic supply 6-6 is arranged on bottom scaling powder flow container 6-5.
In the present embodiment, the lower dipping block 6-2 in dipping mechanism and upper holder block 6-3 then steps up lug root respectively under upper cylinder 6-0 and lower cylinder 6-1 promotes, and now lug root position to be welded is by lower dipping block 6-2 uniform coating last layer scaling powder.While the first manipulator 5-1 and the second manipulator 5-2 and lower dipping block 6-2 and upper holder block 6-3 steps up or compresses lug band 1-0,3rd cylinder 4-0 of tab cutting mechanism 4 drives cutting knife 4-3 descending, cutting knife 4-3 with cut die and coordinate and realize cutting of lug band 1-0, become single lug.
Complete after cutting, 3rd cylinder 4-0 drives horizontal reset on cutting knife 4-3, lower dipping block 6-2 and upper holder block also reset respectively under the driving of upper cylinder 6-0 and lower cylinder 6-1, and the first manipulator 5-1 and the second manipulator 5-2 moves the pole piece lug position to be welded on the die shoe 7-7 entering to deliver to lithium ion cell polar ear thermal compression welding mechanism 7 by single lug under the driving of the 3rd servomotor 5-0 along the second leading screw 5-3 set a distance subsequently.
The lithium ion cell polar ear thermal compression welding system of the present embodiment, comprise tab unreeling mechanism, sealant testing agency, first send lug mechanism, tab cutting mechanism, second send lug mechanism, dipping mechanism and thermal compression welding mechanism, to be connected with high frequency electric source device by electromagnetic induction soldering tip and to produce alternating magnetic field, to make the low-melting alloy melting on lug surface, and the water quench low-melting alloy being connected and circulating is filled with by electromagnetic induction soldering tip and recirculated water, finally realize tab welding to the lug position to be welded on pole piece, the problem of the incident rosin joint in tab welding end place or burn-through in ultrasonic bonding of the prior art can be avoided, thus realize adopting easy hot pressing mode to carry out thermal compression welding, not only simple to operation, and it is very firm by the lithium ion battery tab welding mechanism welding of the present embodiment, the problem of rosin joint or burn-through can not be there is.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a lithium ion cell polar ear thermal compression welding mechanism, is characterized in that, comprising: cylinder, upper bolster, soldering tip fixture block, electromagnetic induction soldering tip, high frequency electric source device, circulation water pot and die shoe; Described die shoe is positioned at below described upper bolster, and described die shoe is for placing lug and pole piece, and described lug is placed on lug position to be welded on described pole piece; Described cylinder, described high frequency electric source device and described circulation water pot are separately positioned on described upper bolster, and described high frequency electric source device is positioned at the centre of described cylinder and described circulation water pot; Described cylinder external part points to described die shoe, and described soldering tip fixture block is arranged on the end face of the external part of described cylinder, and described electromagnetic induction soldering tip is embedded in described soldering tip fixture block; Described cylinder can drive described soldering tip fixture block to move to the direction of described die shoe;
Described electromagnetic induction soldering tip is connected with described high frequency electric source device, for generation of alternating magnetic field, to make the low-melting alloy melting on described lug surface, and described lug is sticked to the lug position described to be welded on described pole piece; The inside of described electromagnetic induction soldering tip is also communicated with described circulation water pot, with when described electromagnetic induction soldering tip and described high frequency electric source device disconnect, described electromagnetic induction soldering tip moves downward the described lug of contact under the driving of described cylinder, and by low-melting alloy described in the water quench in described electromagnetic induction soldering tip.
2. mechanism according to claim 1, is characterized in that, described electromagnetic induction soldering tip is square hollow copper pipe, and the inside of described square hollow copper pipe is communicated with described circulation water pot, the described cooling water that can circulate in described circulation water pot.
3. mechanism according to claim 1, is characterized in that, also comprises the first mistake roller, and described first mistake roller is arranged on the side plate for connecting described upper bolster and described die shoe, and with described die shoe in same level;
The front panel of described high frequency electric source device is also provided with switching high-frequency power, high frequency electric source frequency knob and display.
4. a lithium ion cell polar ear thermal compression welding system, is characterized in that, comprises the arbitrary described lithium ion cell polar ear thermal compression welding mechanism of as above claim 1-3; Also comprise: tab unreeling mechanism, sealant testing agency, first send lug mechanism, tab cutting mechanism, second send lug mechanism and dipping mechanism, described tab unreeling mechanism, described sealant testing agency, described first send lug mechanism, described tab cutting mechanism, described second send lug mechanism, described dipping mechanism and described lithium ion cell polar ear thermal compression welding mechanism, be installed on base, and successively described lug is processed according to the order being from upstream to downstream, realize the thermal compression welding of described lug.
5. system according to claim 4, it is characterized in that, described tab unreeling mechanism comprises lug plait mill, back-up ring, the first servomotor, at least one second mistake roller, guide rail, buffer sliding block, upper limit inductor, lower limit inductor, support and limited support notch board; Described support is fixedly mounted on described base, described first servomotor and described lug plait mill are arranged on the end of described support respectively and are symmetricly set on described support both sides, described back-up ring is arranged on the core outer end of described lug plait mill, with fixing described lug plait mill; Described at least one second cross roller arrange on the bracket, region between described lug plait mill and described base, to arrange the traction route of the lug band of drawing from described lug plait mill; Described guide rail is arranged on the bracket, and perpendicular to described base; Described guide rail is provided with buffer sliding block, and the upper and lower two ends of described guide rail are respectively arranged with described upper limit inductor and described lower limit inductor; Described buffer sliding block can be slided between described upper limit inductor and described lower limit inductor along described guide rail, and described buffer sliding block is provided with one described second roller excessively, to draw described lug Tape movement; Described support notch board is arranged on described base, and the upper surface of described support notch board and described support described second of least significant end cross roller in the same horizontal line, to support crossing from described second the described lug band that roller draws.
6. system according to claim 4, is characterized in that, described sealant testing agency comprises the first support plate, fastening bolt, the first cylinder, at least one tong and triangle and refers to; Described first support plate is vertically fixed on described base, and described first cylinder is fixed on the upper end of described first support plate by described fastening bolt; At least one tong described is arranged on the external part of described first cylinder; And each described tong is also provided with described triangle refers to.
7. system according to claim 6, is characterized in that, described tab cutting mechanism comprises the seat of honour, the 3rd cylinder, lower seat, guide pillar, stamping-out cutter, reject chute and punching and blanking die; Described lower seat is arranged on described base, and the described seat of honour is fixed on described lower seat by described guide pillar; Described 3rd cylinder is arranged on the described seat of honour, and described stamping-out cutter is arranged on the external part of described 3rd cylinder, and the external part of described 3rd cylinder is towards the direction of described lower seat; Described punching and blanking die is arranged on described lower seat upper surface, and is provided with described reject chute below described lower seat inside, described punching and blanking die.
8. system according to claim 7, is characterized in that, described first send lug mechanism to comprise upper bracket, the second cylinder, briquetting, lower bottom base, the second servomotor and the first leading screw; Described first leading screw is arranged between described first support plate and described lower seat; Described lower bottom base is arranged on described first leading screw, and described lower bottom base can slide between described first support plate and described lower seat along described leading screw; Described upper bracket is arranged on described lower bottom base, and perpendicular to described base; Described second cylinder is arranged on described upper bracket top, and the external part of described second cylinder is towards described lower bottom base direction, and described briquetting is arranged on the external part of described second cylinder.
9., according to the arbitrary described system of claim 4-8, it is characterized in that, described second send lug mechanism to comprise the 3rd servomotor, at least one manipulator and the second leading screw; At least one manipulator described is arranged on described second screw mandrel, and described 3rd servomotor is connected with described second leading screw, to drive described second leading screw to rotate, to drive at least one robot movement described.
10., according to the arbitrary described system of claim 4-8, it is characterized in that, described dipping mechanism comprises upper cylinder, lower cylinder, lower dipping block, upper holder block, the second support plate, scaling powder flow container and outer pneumatic supply; Described second support plate is vertically set on described base, and described upper cylinder is arranged on the top of described second support plate, and the external part of described upper cylinder is towards the direction of described base; Described upper holder block is arranged on the end of the external part of described upper cylinder; Described lower cylinder is positioned at below described upper cylinder; The external part of described lower cylinder is towards the direction of described upper cylinder; Described lower dipping block is arranged on the end of the external part of described lower cylinder; Described scaling powder flow container is connected with described lower dipping block, thinks that described lower dipping block provides described scaling powder; Described outer pneumatic supply is used for treating that the described lug of dipping blows the gas being greater than standard atmospheric pressure;
Described lower dipping block is arranged on described lower cylinder external part, and described upper holder block is arranged on described upper cylinder external part; Described upper cylinder and described lower cylinder are arranged on described support plate, and described support plate is vertically fixed on described base; Described scaling powder flow container is arranged on described support plate by side bottom, and described outer pneumatic supply is arranged on bottom described scaling powder flow container.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433695.2U CN204747761U (en) | 2015-06-23 | 2015-06-23 | Lithium ion battery extremely has burning ears and presses welding mechanism and welding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433695.2U CN204747761U (en) | 2015-06-23 | 2015-06-23 | Lithium ion battery extremely has burning ears and presses welding mechanism and welding system |
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| CN204747761U true CN204747761U (en) | 2015-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044263A (en) * | 2017-12-08 | 2018-05-18 | 安徽六和同心风能设备有限公司 | Lithium battery welding equipment |
| CN110814607A (en) * | 2018-08-13 | 2020-02-21 | 东莞市佳的自动化设备科技有限公司 | Eccentric wheel type lug die-cutting clamping mechanism |
| CN111644721A (en) * | 2020-06-15 | 2020-09-11 | 珠海市嘉德电能科技有限公司 | Positioning device for battery welding and battery welding method |
-
2015
- 2015-06-23 CN CN201520433695.2U patent/CN204747761U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044263A (en) * | 2017-12-08 | 2018-05-18 | 安徽六和同心风能设备有限公司 | Lithium battery welding equipment |
| CN110814607A (en) * | 2018-08-13 | 2020-02-21 | 东莞市佳的自动化设备科技有限公司 | Eccentric wheel type lug die-cutting clamping mechanism |
| CN111644721A (en) * | 2020-06-15 | 2020-09-11 | 珠海市嘉德电能科技有限公司 | Positioning device for battery welding and battery welding method |
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Address after: 352100 Jiaocheng District of Ningde City, Fujian Province Zhang Wan Zhen Xingang Road No. 1 Patentee after: Contemporary Amperex Technology Co.,Ltd. Address before: 352100 Jiaocheng District of Ningde City, Fujian Province Zhang Wan Zhen Xingang Road No. 1 Patentee before: CONTEMPORARY AMPEREX TECHNOLOGY Ltd. |