CN207398274U - Rub leveling device in a kind of battery core end face - Google Patents
Rub leveling device in a kind of battery core end face Download PDFInfo
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- CN207398274U CN207398274U CN201720871661.0U CN201720871661U CN207398274U CN 207398274 U CN207398274 U CN 207398274U CN 201720871661 U CN201720871661 U CN 201720871661U CN 207398274 U CN207398274 U CN 207398274U
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- battery core
- leveling device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a kind of battery core end face and rubs leveling device, including rack, battery core clamping device and rub leveling device, it battery core clamping device and rubs leveling device and is oppositely arranged, and battery core clamping device is installed in by slewing equipment in rack, it rubs leveling device slidingtype to be installed in rack, and opposite can rub leveling device back-and-forth motion.The utility model realizes the fixed clamp to battery core by setting battery core clamping device in rack and rubbing leveling device, using battery core clamping device, and cooperation rubs leveling device and rubs smooth shape to battery core end face to realize；Simultaneously, battery core clamping device is installed in by slewing equipment in rack by the utility model, using slewing equipment battery core clamping device is driven to rotate, so as to fulfill the automatic reverse of battery core, processing efficiency can be not only improved, labor intensity is reduced, and avoids the clamping error caused by secondary clamping, the shaping effect of two end faces of battery core is caused to generate difference, influences its processing quality.
Description
Technical field
The utility model is related to battery preparation technology fields, and leveling device is rubbed more particularly, to a kind of battery core end face.
Background technology
Existing high-capacity cylindrical lithium ion cell, mostly using full lug formula positive and negative electrode.Current existing battery is generally adopted
With full lug formula positive and negative electrode, i.e., when being coated with anode sizing agent on plus plate current-collecting body (being usually aluminium foil), edge is reserved at one end
A part is not coated with the region (positive aurora paper tinsel area) of slurry, when being coated with negative electrode slurry on negative current collector (be usually copper foil)
One end margin reserves the region (cathode Guang Bo areas) that a part is not coated with slurry.Positive plate, negative plate and membrane winding form electricity
After core coiling body, the paper tinsel body in positive aurora paper tinsel area forms the lug position end face of anode, and the paper tinsel body in cathode Guang Bo areas forms cathode
Lug position end face.Lug position end face need to weld together with collector plate, be exported so as to the electric current of battery from collector plate.Due to pole
The paper tinsel body thickness of ear position end face is thin (6~30 microns), soft yielding, and when being welded with collector plate, applying pressure can make entirely
Paper tinsel body bent or deform, and the lug position end face diameter of electrical core coiling body is caused to become larger or evagination, causes electrical core coiling body can not
It is packed into battery case or turn on battery case and short-circuit, and directly application pressure can cause end face in the end face of paper tinsel body
Out-of-flatness is deformed, the regional area of end face can not cause bonding area small, weld strength is low, battery with collector plate contact weld
Internal resistance is big, it is therefore necessary to carry out shaping to the lug position end face of electrical core coiling body before collector plate welding.
Existing electrical core coiling body shaping methods, mainly have following two：
1st, the paper tinsel body in positive aurora paper tinsel area and the paper tinsel body in cathode Guang Bo areas are used into laser pre-cut beam shapes respectively, just
Into after electrical core coiling body, the paper tinsel body of these beam shapes is welded to the collection of a bottle-cover-shape for pole piece, negative plate and membrane winding
On flow table.This shaping methods need that paper tinsel body is cut into strips shape with laser, and complex process, efficiency is low, of high cost, paper tinsel shape
Body its bulk strength after shape that cuts into strips is low, is welded on current collecting plates and is easily pulled off, relatively original paper tinsel body carries electric current
It is small, it is to get half the result with twice the effort.
2nd, Patent No. CN102683634A, patent name are " a kind of high-capacity cylindrical lithium ion cell and its production
The utility model patent of method " carries out the lug position end face of lithium ion battery using the higher-order of oscillation (such as ultrasonic wave) mode
Shaping, the tuner manufacture for the machine that this method uses is of high cost, and service life is limited, and corresponding tuner frequency debugging is multiple
Miscellaneous, frequency adjustment time is long.
Based on above two shaping methods there are the defects of, it is necessary to find it is a kind of it is more efficient, processing is simpler, cost
The core coil end face shaping methods and shaping device lower, service life is longer, to improve the production method of lithium ion battery.
Utility model content
The utility model provides a kind of battery core end face and rubs leveling device, with solve existing battery core end face shaping process it is complicated, into
The technical issues of this height and poor shaping effect.
One side according to the present utility model provides a kind of battery core end face and rubs leveling device, including rack, battery core clamping dress
Leveling device is put and rubs, the battery core clamping device and the leveling device of rubbing are oppositely arranged, and the battery core clamping device is by returning
Rotary device is installed in the rack, and the leveling device slidingtype of rubbing is installed in the rack, and relatively described can rub paperback
Put back-and-forth motion.
On the basis of said program preferably, the leveling device of rubbing includes slide, spinning die head and spinning motor, the spinning
Die head is installed on the output shaft of the spinning motor, and the spinning motor is installed on the slide, and the slide and institute
Housing slide formula is stated to be connected.
On the basis of said program preferably, the spinning die head includes pedestal and several spinning heads, and the pedestal is fixed
On the output shaft of the spinning motor, circumferentially formula is installed on the pedestal spinning head.
On the basis of said program preferably, taper installation set, the small end of the taper installation set are equiped on the pedestal
It is fixed on the pedestal, the spinning head rotary type is installed on the inside of the taper installation set.
On the basis of said program preferably, the spinning head is installed in by mounting base on the pedestal, the mounting base
It is connected with pedestal slip；Preferably, driving cylinder, the telescopic rod of the driving cylinder and the peace are also equiped on the pedestal
Dress seat is connected the mounting base is driven to slide on the pedestal.
On the basis of said program preferably, the spinning head includes roller section and tapered portion, and the tapered portion is arranged at institute
It states at the top of roller section.
On the basis of said program preferably, spinning bar is also equiped on the pedestal, and the spinning bar is in several
The center of the spinning head.
On the basis of said program preferably, at the top of the spinning bar in frustum, the tapered portion of the spinning head with it is described
The conical surface at the top of spinning bar is tangent.
On the basis of said program preferably, the battery core clamping device includes cylinder body and two clamping jaws, the clamping jaw installing
On the telescopic rod of the cylinder body, the slewing equipment include turning motor and revolving support, the turning motor with described time
Turn support driving to be connected, the cylinder body is fixed on the revolving support.
On the basis of said program preferably, driving unit and slide, the slide and the cunning are additionally provided in the rack
Rail coordinates, and the driving unit is connected with slide driving.
On the basis of said program preferably, the driving unit is driving motor, and the output terminal of the driving motor is installed
There is screw, and nut is equiped in the slide bottom, the nut is sleeved on the screw.
On the basis of said program preferably, the driving unit is servo cylinder, the telescopic rod of the servo cylinder and institute
Slide is stated to be connected.
The utility model proposes a kind of battery core end faces to rub leveling device, by setting battery core clamping device in rack and rubbing flat
Device realizes the fixed clamp to battery core using battery core clamping device, and it is flat to rubbing for battery core end face to realize that leveling device is rubbed in cooperation
Shaping, so as to fulfill the automation shaping to battery core end face.
Since battery core is there are two end face, in order to avoid exchange battery core end face and result in the need for removing stage makeup and costume battery core the problem of, this reality
Battery core clamping device is installed in by slewing equipment in rack with new, using slewing equipment battery core clamping device is driven to revolve
Turn, so as to fulfill the automatic reverse of battery core, can not only improve processing efficiency, reduce labor intensity, and avoid secondary dress
Clamping error caused by folder causes the shaping effect of two end faces of battery core to generate difference, influences its processing quality.
As the another of the utility model the advantage is that leveling device is rubbed in a kind of battery core end face of the utility model, pass through by
Mounting base slidingtype is installed on pedestal, after the completion of to the shaping of battery core end face, can be displaced outwardly by mounting base, drives spinning
Head is displaced outwardly, and promotion is rubbed leveling device and moved to battery core end face, using the end face of pedestal to realize the centre bit to battery core end face
It puts and the secondary leveling of peripheral location, so as to further effectively ensure its shaping effect.
Description of the drawings
Fig. 1 is the front view that leveling device is rubbed according to the battery core end face of the utility model；
Fig. 2 is the stereogram that leveling device is rubbed according to the battery core end face of the utility model；
Fig. 3 is the structure diagram according to the spinning die head of the utility model；
Fig. 4 is the partial schematic diagram for rubbing leveling device according to the utility model；
In figure：100th, rack；200th, battery core clamping device；210th, cylinder body；220th, clamping jaw；300th, leveling device is rubbed；310th, it is sliding
Seat；320th, spinning die head；321st, pedestal；322nd, spinning head；3221st, roller section；3222nd, tapered portion；323rd, taper installation set；
324th, mounting base；325th, spinning bar；330th, spinning motor；400th, driving unit；410th, slide；430th, nut.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1, and with reference to shown in Fig. 2, leveling device is rubbed in a kind of battery core end face of the utility model, including rack 100,
Battery core clamping device 200 and rub leveling device 300.
Battery core clamping device 200 is used for clamping battery core, and rubs leveling device 300 and be then used to carry out 500 end face of battery core shaping,
Rack 100 is for installation support battery core clamping device 200 and rubs leveling device 300.
Wherein, the battery core clamping device 200 of the utility model is oppositely arranged with rubbing leveling device 300, and battery core clamping device
200 are installed in by slewing equipment in rack 100, are rubbed 300 slidingtype of leveling device and are installed in rack 100, and opposite can be rubbed flat
Device 300 moves back and forth.
In use, can rub leveling device 300 by promoting in rack 100 and slide, on the one hand it is adjustable rub leveling device 300 with
Flat effect is rubbed in the distance between battery core 500, guarantee, on the other hand avoids rubbing leveling device 300 to electricity when battery core 500 exchanges end face
The interference of core clamping device 200 makes its more convenient to use quick；The battery core clamping device 200 of the utility model is filled in revolution
, it can be achieved that it is relative to the automatic rotation for rubbing leveling device 300, so as to fulfill the purpose that it is exchanged automatically, in battery core under the action of putting
When 500 end faces adjust, without dismantling battery core 500, the installation error caused by 500 secondary clamping of battery core is avoided, improves electricity
The shaping effect of 500 two end faces of core.
Leveling device is rubbed in a kind of battery core end face of the utility model, using slewing equipment, battery core clamping device 200 and rubs paperback
300 are put, it can be achieved that the efficient automatic shaping of 500 end face of battery core, its is made compact-sized to be simple and convenient to operate and shaping effect is excellent
It is good.
Please continue to refer to shown in Fig. 2, the leveling device 300 of rubbing of the utility model includes slide 310, spinning die head 320 and rotation
Medium-voltage Motor 330,310 slidingtype of slide are installed in rack 100, and opposite can be rubbed leveling device 300 and be moved back and forth, and spinning motor
330 are installed on slide 310, and spinning die head 320 is installed on the output shaft of spinning motor 330, and in the defeated of spinning motor 330
Decelerating motor is equiped between shaft and spinning die head 320.
When spinning motor 330 works, the output shaft of spinning motor 330 drives spinning die head 320 to rotate, spinning die head
320 act on 500 end face of battery core on battery core clamping device 200, by between 500 end face of spinning die head 320 and battery core
Friction pressing, it is flat by rubbing so as to fulfill the shaping to 500 end face of battery core, and after the completion of one of 500 end face shaping of battery core
Device 300 is moved away from 200 one side of battery core clamping device so that battery core clamping device 200 and rubs the spacing between leveling device 300
Increase, then, battery core clamping device 200 drive battery core clamping device 200 to carry out 180 ° of rotation under the action of slewing equipment,
So that the other end of battery core is oppositely arranged with rubbing leveling device 300, then promotes and rub leveling device 300 in rack 100 to electricity
200 1 Slideslip of core clamping device, then, rub flat telegram machine drive rub tack rotation, drive rub other end of the tack to battery core
Shaping.
The utility model can realize the automatic switchover of two end faces of battery core using slewing equipment, and leveling device 300 is rubbed in cooperation
Automatically moving in rack 100, it can be achieved that the automatic switchover of 500 end face of battery core and rub leveling device 300 it is automatic advance or after
It moves back, makes its more convenient to use quick.
As another preferred embodiment of the utility model, if the spinning die head 320 of the utility model include pedestal 321 and
Dry spinning head 322, wherein, pedestal 321 is fixed on the output shaft of spinning motor 330, and circumferentially formula fills multiple spinning heads 322
It is located on pedestal 321.As shown in Fig. 2, the spinning head 322 of the utility model is three, the central axis of three spinning heads 322 it
Between angle be 120 °.
As in another preferred embodiment of the utility model, please continue to refer to shown in Fig. 2, the pedestal of the utility model
Taper installation set 323 is equiped on 321, the small end of taper installation set 323 is fixed on pedestal 321,322 rotary type of spinning head dress
It is located at 323 inside of taper installation set.As shown in Figure 3, the spinning head 322 of the utility model is three, and three spinning heads 322 are equal
It is even to be installed in 323 inside of taper installation set, and three 322 tops of spinning head are oppositely arranged, and spinning head 322 passes through peace
Dress axis is fixed in taper installation set 323, when spinning motor 330 drives the taper installation set 323 on pedestal 321 to rotate, rotation
Pressure head 322 also carries out rotation around installation axle simultaneously so that 500 end face of battery core on battery core clamping device 200 not only receives
The axial compressive force friction that spinning head 322 applies, but also the friction force that the rotation of spinning head 322 is subject to be applied, with true
Protect its shaping effect.
As in another preferred embodiment of the utility model, the spinning head 322 of the utility model is filled by mounting base 324
It is located on pedestal 321, mounting base 324 is connected with the slip of pedestal 321, and concrete structure is referred to shown in Fig. 4.Pass through mounting base 324
Slip between slide 310 is connected, in use, first with mounting base 324 spinning head 322 is made to be in the position of center alignment
It puts, shaping is carried out to 500 end face of battery core, since three 322 centers of spinning head have connecting sewing always, in order to avoid connection
It is bad to stitch corresponding 500 endface position shaping effect of battery core, after the completion of its shaping, 324 entirety of mounting base is slid in and out, is made
Battery core can be accommodated by obtaining the center surrounded between mounting base 324, and then, promotion is rubbed leveling device 300 and moved to battery core one side, makes
The end face of pedestal 321 and 500 end contact of battery core are obtained, using spinning motor 330 pedestal 321 is driven to rotate, so that pedestal
Pressure of rubbing is carried out between 321 and 500 end face of battery core, further improves the shaping of 500 end face of battery core, improves its shaping effect.
Preferably, the utility model is also equiped with drive to further improve the automation of equipment on the pedestal 321
Dynamic cylinder, the telescopic rod of driving cylinder is connected with mounting base 324 to be slided with drive installation seat 324 on pedestal 321.
It should be noted that the spinning head 322 of the utility model includes roller section 3221 and tapered portion 3222, tapered portion
3222 are arranged at 3221 top of roller section, using the combination of tapered portion 3222 and roller section 3221, can not only realize roller section
The pressure of rubbing of 3221 pairs of 500 end faces of battery core, but also tapered portion 3222 can be utilized to reduce the gap between spinning head 322, it improves
The efficiency of 500 end face shaping of battery core, concrete structure are referred to shown in Fig. 3.
As another preferred embodiment of the utility model, spinning bar is also equiped on the pedestal 321 of the utility model
325, and spinning bar 325 is in the center of several spinning heads 322.In use, it can be used for substituting pedestal in spinning bar 325
321 realize the shaping to 500 end face of battery core, so as to reduce the sliding distance for rubbing pressure device in rack 100, improve processing effect
Rate.
Preferably, 325 top of spinning bar of the utility model is in frustum, the tapered portion 3222 and spinning of spinning head 322
The conical surface at 325 top of bar is tangent, and when spinning head 322 is to 500 end face shaping of battery core, spinning bar 325 is played to spinning head 322
Supporting role avoids reaction force of the spinning head 322 due to 500 end face of battery core, generates vibration, ensures the stability of shaping, carry
High shaping effect.
As another preferred embodiment of the utility model, the battery core clamping device 200 of the utility model includes cylinder body 210
With two clamping jaws 220, clamping jaw 220 is installed on the telescopic rod of cylinder body 210, and slewing equipment includes turning motor and revolving support,
Turning motor is connected with revolving support driving, and cylinder body 210 is fixed on revolving support.
In use, turning motor driving revolving support rotation, drives the cylinder body 210 being mounted on revolving support to rotate, from
And realize and the battery core auto-steering between two clamping jaws 220 on cylinder body 210 is acted on, to improve its service efficiency；And this practicality
New cylinder body 210 can be that cylinder can also be oil hydraulic cylinder.
In order to further illustrate the technical solution of the utility model, please continue to refer to shown in Fig. 3, the rack of the utility model
Driving unit 400 and slide 410 are additionally provided on 100, slide 310 coordinates with slide 410, and driving unit 400 drives with slide 310
It is connected.Using the cooperation between slide 410 and slide 310, ensure the movement of stablizing of slide 310, meanwhile, coordinate driving unit
400 effect, the automation movement of slide 310.
As the preferred embodiment of the utility model, the driving unit 400 of the utility model is driving motor, driving motor
Output terminal be equiped with screw, and be equiped with nut 430 in 310 bottom of slide, nut 430 is sleeved on screw.During work, drive
Dynamic motor drives screw mandrel rotation, using the cooperation of screw and nut 430, converts rotational motion into linear motion, to drive peace
Feeding of the leveling device 300 compared with battery core clamping device 200 is rubbed in the movement of slide 310 on nut 430, realization.Due to
Using the cooperation of nut 430 and screw in the present embodiment, its accuracy fed can be effectively ensured.
As another preferred embodiment of the utility model, the driving unit 400 of the utility model is servo cylinder, servo
The telescopic rod of cylinder is connected with slide 310, and in the course of work, servo cylinder drives slide 310 to move, so as to fulfill leveling device is rubbed
Relative movement between 300 and battery core clamping device 200.
The utility model proposes a kind of battery core end faces to rub leveling device, by setting battery core clamping device 200 in rack 100
With rub leveling device 300, realize the fixed clamp to battery core using battery core clamping device 200, cooperation rubs leveling device 300 to realize pair
Smooth shape is rubbed in 500 end face of battery core, so as to fulfill the automation shaping to 500 end face of battery core.
Since battery core is there are two end face, in order to avoid exchange 500 end face of battery core and result in the need for removing stage makeup and costume battery core the problem of, this
Battery core clamping device 200 is installed in by slewing equipment in rack 100 by utility model, using slewing equipment battery core is driven to clamp
Device 200 rotates, and so as to fulfill the automatic reverse of battery core, can not only improve processing efficiency, reduce labor intensity, and avoid
Clamping error caused by secondary clamping causes the shaping effect of battery core two end faces to generate difference, influences its processing quality.
As the another of the utility model the advantage is that leveling device is rubbed in a kind of battery core end face of the utility model, pass through by
324 slidingtype of mounting base is installed on pedestal 321, can be outside by mounting base 324 after the completion of to 500 end face shaping of battery core
It is mobile, spinning head 322 is driven to be displaced outwardly, promotion is rubbed leveling device 300 and moved to 500 end face of battery core, utilizes the end face of pedestal 321
To realize to the center of 500 end face of battery core and the secondary leveling of peripheral location, so as to further effectively ensure that its shaping is imitated
Fruit.
It should be noted that the meaning of several expressions at least two all in the utility model.
Finally, the method for the utility model is only preferable embodiment, is not intended to limit the protection of the utility model
Scope.Within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should be included in
Within the scope of protection of the utility model.
Claims (11)
1. leveling device is rubbed in a kind of battery core end face, which is characterized in that including rack, battery core clamping device and rubs leveling device, the electricity
Core clamping device and the leveling device of rubbing are oppositely arranged, and the battery core clamping device is installed in the rack by slewing equipment
On, the leveling device slidingtype of rubbing is installed in the rack, and relatively described can rub leveling device back-and-forth motion.
2. leveling device is rubbed in a kind of battery core end face as described in claim 1, which is characterized in that it is described rub leveling device include slide,
Spinning die head and spinning motor, the spinning die head are installed on the output shaft of the spinning motor, the spinning motor installing
On the slide, and the slide is connected with the housing slide formula.
3. leveling device is rubbed in a kind of battery core end face as claimed in claim 2, which is characterized in that the spinning die head include pedestal and
Several spinning heads, the pedestal are fixed on the output shaft of the spinning motor, and circumferentially formula is installed in institute to the spinning head
It states on pedestal.
4. leveling device is rubbed in a kind of battery core end face as claimed in claim 3, which is characterized in that taper peace is equiped on the pedestal
Encapsulation, the small end of the taper installation set are fixed on the pedestal, and the spinning head rotary type is installed in the taper installation
Set inside.
5. leveling device is rubbed in a kind of battery core end face as claimed in claim 3, which is characterized in that the spinning head is filled by mounting base
It is located on the pedestal, the mounting base is connected with pedestal slip.
6. as leveling device is rubbed in a kind of battery core end face of claim 3-5 any one of them, which is characterized in that the spinning head includes
Roller section and tapered portion, the tapered portion are arranged at the top of the roller section.
7. leveling device is rubbed in a kind of battery core end face as claimed in claim 6, which is characterized in that is also equiped with spinning on the pedestal
Bar, and the spinning bar is in the center of several spinning heads.
8. leveling device is rubbed in a kind of battery core end face as claimed in claim 5, which is characterized in that is in frustum at the top of the spinning bar
Shape, the tapered portion of the spinning head and the conical surface at the top of the spinning bar are tangent.
9. leveling device is rubbed in a kind of battery core end face as described in claim 1, which is characterized in that the battery core clamping device includes cylinder
Body and two clamping jaws, the clamping jaw are installed on the telescopic rod of the cylinder body, and the slewing equipment includes turning motor and revolution
Support, the turning motor are connected with revolving support driving, and the cylinder body is fixed on the revolving support.
10. leveling device is rubbed in a kind of battery core end face as claimed in claim 2, which is characterized in that driving is additionally provided in the rack
Unit and slide, the slide coordinate with the slide, and the driving unit is connected with slide driving, the driving unit
For driving motor, the output terminal of the driving motor is equiped with screw, and is equiped with nut, the nut in the slide bottom
It is sleeved on the screw.
11. leveling device is rubbed in a kind of battery core end face as claimed in claim 5, which is characterized in that drive is also equiped on the pedestal
Dynamic cylinder, the telescopic rod of the driving cylinder are connected the mounting base is driven to slide on the pedestal with the mounting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720871661.0U CN207398274U (en) | 2017-07-18 | 2017-07-18 | Rub leveling device in a kind of battery core end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720871661.0U CN207398274U (en) | 2017-07-18 | 2017-07-18 | Rub leveling device in a kind of battery core end face |
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| Publication Number | Publication Date |
|---|---|
| CN207398274U true CN207398274U (en) | 2018-05-22 |
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ID=62417506
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394248A (en) * | 2017-07-18 | 2017-11-24 | 武汉逸飞激光设备有限公司 | Rub leveling device in a kind of battery core end face |
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2017
- 2017-07-18 CN CN201720871661.0U patent/CN207398274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394248A (en) * | 2017-07-18 | 2017-11-24 | 武汉逸飞激光设备有限公司 | Rub leveling device in a kind of battery core end face |
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Address after: 430000 Guandong science and Technology Industrial Park, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Yifei laser Co.,Ltd. Address before: Building 3, Dingxin Industrial Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN YIFI LASER EQUIPMENT Co.,Ltd. |