CN206516712U - The deviation correcting device of cell polar ear - Google Patents

The deviation correcting device of cell polar ear Download PDF

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Publication number
CN206516712U
CN206516712U CN201720042691.0U CN201720042691U CN206516712U CN 206516712 U CN206516712 U CN 206516712U CN 201720042691 U CN201720042691 U CN 201720042691U CN 206516712 U CN206516712 U CN 206516712U
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CN
China
Prior art keywords
keeper
correction
correcting device
battery core
deviation
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Active
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CN201720042691.0U
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Chinese (zh)
Inventor
王晓玲
林剑威
王勇
贾宝安
李虎
项春江
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Ningde Amperex Technology Ltd
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Ningde Amperex Technology Ltd
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Priority to CN201720042691.0U priority Critical patent/CN206516712U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

The application is related to the deviation correcting device of cell polar ear.The deviation correcting device includes detent mechanism and deviation correction mechanism, the detent mechanism includes the first keeper and the second keeper, first keeper can be towards close to a mutual lateral movement with second keeper, to form the first movement travel and the second movement travel that are moved to from initial position at position location respectively, and first movement travel is equal with second movement travel, at the position location, first keeper and second keeper can respectively with the battery core relative to the lug bearing of trend two opposite sides against positioning, deviation correction mechanism includes the first correction part and the second correction part, lug after being positioned by detent mechanism can be located between the first correction part and the second correction part, to correct position of the lug relative to battery core.The program improves the accuracy of battery core positioning, so as to improve the correction precision of cell polar ear.

Description

The deviation correcting device of cell polar ear
Technical field
The application is related to battery core processing tool technical field, more particularly to a kind of deviation correcting device of cell polar ear.
Background technology
Battery core is including battery core main body and lug, the battery core after being made, and the back gauge of lug and battery core main body should be in the inclined of permission In poor scope, otherwise, in follow-up packaging process, lug may be weighed or be occurred wounded the insecure phenomenon of encapsulation.
In correlation technique, there is lug deviation correcting device, the lug deviation correcting device passes through detent mechanism pair first before correction Battery core is positioned, and detent mechanism generally includes positioning substrate and positions push pedal, and positioning substrate is fixed, and positioning push pedal is promoted Battery core is with positioning substrate against realization is positioned.
However, because there is deviation in battery core size, when using above-mentioned detent mechanism positioning, because deviation accumulation can be made Larger into deviations, correction precision is poor when causing subsequently to rectify a deviation.
Utility model content
The embodiment of the present application provides a kind of deviation correcting device of cell polar ear, can improve drawbacks described above.
This application provides a kind of deviation correcting device of cell polar ear, the deviation correcting device includes detent mechanism and rectification machine Structure,
The detent mechanism includes the first keeper and the second keeper, first keeper and the described second positioning Part can be towards close to a mutual lateral movement, to form the first motion moved to from initial position at position location respectively Stroke and the second movement travel, and first movement travel is equal with second movement travel,
At the position location, first keeper and second keeper can respectively with battery core relative to The two opposite sides of the bearing of trend of lug against positioning,
The deviation correction mechanism includes the first correction part and the second correction part,
The lug after being positioned by the detent mechanism can be located at the described first correction part and the described second correction Between part,
And the first correction part is respectively provided with the correction stroke of close/side away from each other with the described second correction part,
In the correction stroke, the first correction part can be relative with the two of the lug with the described second correction part Side contacts, to correct position of the lug relative to the battery core.
Preferably, the detent mechanism also includes support member,
First keeper and second keeper are movably connected on the support member, first movement travel Active strokes for first keeper relative to the support member, second movement travel is the second keeper phase For the active strokes of the support member.
Preferably, the detent mechanism also includes STATEMENT OF FEDERALLY SPONSORED,
First keeper and second keeper are flexibly connected with the STATEMENT OF FEDERALLY SPONSORED,
The STATEMENT OF FEDERALLY SPONSORED can drive first keeper and second keeper on the support member to by At nearly mutual side activity to the position location,
And the direction of motion of the STATEMENT OF FEDERALLY SPONSORED and the activity direction phase of first keeper and second keeper Vertically.
Preferably, the STATEMENT OF FEDERALLY SPONSORED is provided with the first chute and the second chute, and first keeper includes the first sliding pin, Second keeper includes the second sliding pin,
First chute and the second chute relative tilt and it is symmetrical arranged, both line of symmetries are parallel to described The direction of motion of moving part,
And first sliding pin is slidably connected in first chute, second sliding pin is slidably connected in second chute.
Preferably, the detent mechanism also includes floating part, and first keeper and second keeper pass through The floating part and the support member floating connection, to drive first keeper and second keeper can be along institute The thickness direction for stating battery core floats.
Preferably, the detent mechanism also includes auxiliary positioning part, and the auxiliary positioning part can be with institute in the battery core The opposite side of side where lug is stated against positioning.
Preferably, in addition to laminating mechanism, the laminating mechanism has continuous first pressing stroke and the second pressing row Journey,
In the described first pressing stroke, the laminating mechanism can drive the first correction part and the described second correction Part produces the correction stroke,
In the described second pressing stroke, the laminating mechanism can compress the main part of the battery core.
Preferably, in addition to transfer mechanism, the detent mechanism and the deviation correction mechanism are mounted on the drag-over unit Structure, and the transfer mechanism can drive the detent mechanism and the deviation correction mechanism to move, so that the main body of the battery core Part can be located in the second pressing stroke of the laminating mechanism.
Preferably, the laminating mechanism is hot pressing mechanism.
The technical scheme that the application is provided can reach following beneficial effect:
The deviation correcting device for the cell polar ear that the application is provided, including detent mechanism, detent mechanism include the first keeper with And second keeper, the first keeper and the second keeper can move to position location towards close to mutual side, and point The first movement travel and the second movement travel that Ju You do not moved to from initial position at position location, the first movement travel with Second movement travel is equal, and after this allows for battery core by the first keeper and the positioning of the second keeper, its positioning method is by side Face positioning and optimizing is centered about so that the foozle that battery core exists in itself is not accumulated in position fixing process, is improved The accuracy of battery core positioning, so as to improve the correction precision of cell polar ear.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited Application.
Brief description of the drawings
The stereogram for the deviation correcting device that Fig. 1 provides for the embodiment of the present application;
The stereogram of detent mechanism and deviation correction mechanism position relationship that Fig. 2 provides for the embodiment of the present application;
The stereogram I of the part-structure for the detent mechanism that Fig. 3 provides for application embodiment;
The stereogram II of the part-structure for the detent mechanism that Fig. 4 provides for application embodiment;
The stereogram I for the deviation correction mechanism that Fig. 5 provides for application embodiment;
The stereogram II for the deviation correction mechanism that Fig. 6 provides for application embodiment.
Reference:
1- detent mechanisms;
The keepers of 11- first;
The sliding pins of 111- first;
112- transition pieces;
112a- positive stop lug boss;
113- elastic components;
114- floating parts;
The keepers of 12- second;
The sliding pins of 121- second;
13- support members;
14- STATEMENT OF FEDERALLY SPONSOREDs;
The chutes of 141- first;
The chutes of 142- second;
15- balancing weights;
16- auxiliary positioning parts;
2- deviation correction mechanisms;
The correction parts of 21- first;
The correction parts of 22- second;
23- cover plates;
24- uncaps motor;
25- briquettings;
3- laminating mechanisms;
4- transfer mechanisms;
5- battery cores.
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the application Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
As shown in figure 1, this application provides a kind of deviation correcting device of cell polar ear, the deviation correcting device include detent mechanism 1, Deviation correction mechanism 2 and laminating mechanism 3.Wherein, detent mechanism 1 is used to position battery core 5 before cell polar ear correction, with true Protect the correction precision of lug;Deviation correction mechanism 2 is used to rectify a deviation to lug, the side of the main part by lug relative to battery core 5 In the range of allowing away from correction to deviation;Laminating mechanism 3 is used to press the main part of battery core 5 so that lug after correction with Battery core main body keeps being relatively fixed.
Specifically, as shown in Fig. 2 detent mechanism 1 includes the first keeper 11 and the second keeper 12, the first keeper 11 and second keeper 12 can move to sprocket bit towards close to a mutual lateral movement to be formed respectively from initial position First movement travel and the second movement travel at place are put, and the first movement travel is equal with the second movement travel.After so setting, When detent mechanism 1 is positioned to battery core 5, the first keeper 11 and the second keeper 12 can respectively from battery core 5 relative to The two opposite sides of the bearing of trend of lug are close to battery core and with battery core 5 against the positioning method is centered about, to cause battery core 5 foozles existed itself will not be accumulated in position fixing process, relative to the positioning method using the positioning of battery core side Speech, improves the accuracy of battery core positioning, so as to improve the correction precision of cell polar ear.
Wherein, the first keeper 11 and the second keeper 12 can be connected with the expansion link of cylinder or hydraulic cylinder, with reality Both existing motions.In the embodiment shown in Fig. 2-3, detent mechanism 1 also includes support member 13, the first keeper 11 and second Keeper 12 is movably connected on support member 13, wherein, the first movement travel is the first keeper 11 relative to support member 13 Active strokes, the second movement travel be the second keeper 12 relative to support member 13 active strokes.In the program, support member 13 provide support for the motion of the first keeper 11 and the second keeper 12, relative to the side using cylinder or hydraulic cylinder Case, this scheme reduces vibration when the first keeper 11 and the second 12 hanging setting of keeper, improves both in motion During stability.
Further, detent mechanism 1 also includes STATEMENT OF FEDERALLY SPONSORED 14, and STATEMENT OF FEDERALLY SPONSORED 14 can drive the first keeper 11 and the second positioning Part 12 is moved at position location simultaneously to close to a mutual lateral movement, and the program realizes the first keeper 11 and the The synchronization of two keepers 12 motion.Specifically, the first keeper 11 and the second keeper 12 are flexibly connected with STATEMENT OF FEDERALLY SPONSORED 14, and The direction of motion of STATEMENT OF FEDERALLY SPONSORED 14 and the activity direction of the first keeper 11 and the second keeper 12 are perpendicular, in the case, When STATEMENT OF FEDERALLY SPONSORED 14 is acted, the first keeper 11 and the second keeper 12 are driven simultaneously, and the setting of STATEMENT OF FEDERALLY SPONSORED 14, which can be reduced, to be determined The quantity of parts, simplifies structure in the mechanism 1 of position.
According to one embodiment, the transmission between the keeper 11 of STATEMENT OF FEDERALLY SPONSORED 14 and first and the second keeper 12 can be adopted With V belt translation, chain gear transmission and gear drive etc..In the present embodiment, as shown in figure 3, the first keeper 11 and the second keeper 12 are flexibly connected with support member 13, and STATEMENT OF FEDERALLY SPONSORED 14 is provided with the first chute 141 and the second chute 142, the first chute 141 and the The relative tilt of two chute 142 and be symmetrical arranged, both line of symmetries parallel to STATEMENT OF FEDERALLY SPONSORED 14 the direction of motion, correspondingly, first Keeper 11 includes the first sliding pin 111, and the second keeper 12 includes the second sliding pin 121, and the first sliding pin 111 is slidably connected to the first chute In 141, the second sliding pin 121 is slidably connected in the second chute 142.In said structure, when driving STATEMENT OF FEDERALLY SPONSORED 14 is transported downward or upward When dynamic, the driving force is by the inwall of the first chute 141 and the second chute 142 respectively to the first sliding pin 111 and the second sliding pin 121 Apply active force, it is above-mentioned with this so that the first keeper 11 and the second keeper 12 are to a remote or close mutual lateral movement Structure setting is simple, and it is convenient to realize.
In the embodiment shown in fig. 3, the first chute 141 and the second chute 142 are set in splayed structure, other one In a little embodiments, the first chute 141 and the second chute 142 can also be in herringbone structure setting.Also, the first keeper 11 And second keeper 12 can be slidably connected with support member 13, can also with support member 13 roll be connected, the application to this not It is construed as limiting.
In the example shown in Fig. 2-3, detent mechanism also includes balancing weight 15, and balancing weight 15 is fixed with STATEMENT OF FEDERALLY SPONSORED 14 to be connected Connect, STATEMENT OF FEDERALLY SPONSORED 14 is moved downward by the Action of Gravity Field of balancing weight 15, when 14 counter motion of STATEMENT OF FEDERALLY SPONSORED, can by motor or its Its actuator drives.
After the completion of battery core positioning, deviation correction mechanism 2 can rectify a deviation to lug, after correction, and laminating mechanism 3 is along battery core 5 Thickness direction push the main part of battery core 5 so that main part is brought into close contact, it is ensured that the relative position of lug and main part Holding is put to fix.But, due to battery core 5 in the thickness direction of itself there is also deviation, laminating mechanism 3 during pushing, Easily occur because the keeper 11 of laminating mechanism 3 and first and the second keeper 12 are interfered and can not be pressed onto the defect of battery core 5, Therefore, as shown in figure 4, the first keeper 11 includes transition piece 112, elastic component 113 and floating part 114, transition piece 112 is with floating Thickness direction of the moving part 114 along battery core 5 is arranged side by side, and blind hole is offered on transition piece 112, and elastic component 113 is inlaid in blind hole, And one end is contacted with transition piece 112, the other end is contacted with floating part 114, and elastic component 113 can be sent out in the thickness direction of battery core 5 Raw elastic deformation, to enable thickness direction of the floating part 114 along battery core 5 to float, is being pushed so as to avoid laminating mechanism 3 During interfered with the first keeper 11.
Further, transition piece 112 includes positive stop lug boss 112a, when laminating mechanism 3 is pushed so that the compression of elastic component 113 becomes Shape, positive stop lug boss 112a is contacted with floating part 114, to limit the floating stroke of floating part 114.
Similarly, the second keeper 12 can use with the essentially identical configuration of the first keeper 11, here is omitted.Bullet Property part 113 can use compression spring or other elastomers etc..
In the application, as shown in Fig. 2 detent mechanism 1 also includes auxiliary positioning part 16, auxiliary positioning part 16 can be with battery core The opposite side of side where upper lug is against positioning, and the auxiliary positioning part 16 is used for the auxiliary positioning for realizing detent mechanism 1, to ensure Lug can be located in deviation correction mechanism 2, it is ensured that deviation correction mechanism 2 can contact with lug and realize correction operation.Auxiliary positioning part 16 can be towards a lateral movement close and away from battery core, and its motion mode can be slip or rolling etc..
As shown in figure 5, deviation correction mechanism 2 includes the first correction correction part 22 of part 21 and second, after being positioned by detent mechanism 1 Battery core 5 lug can be located at first correction part 21 and second correction part 22 between, and first correction part 21 and second correction Part 22 produce correction stroke, first correction part 21 and second rectify a deviation part 22 can with lug relative to the lug bearing of trend Two opposite sides are contacted.According to above-mentioned structure, when battery core 5 is positioned, the first correction part 21 and second is rectified a deviation the relative motion of part 22 And correct lug to deviation permission.
The structure and motion mode of the first correction correction part 22 of part 21 and second can refer to the first keeper 11 and the Two keepers 12 are set, and here is omitted.
The first correction correction composition of part 22 of part 21 and second is one group, and it can rectify a deviation to a cell polar ear, be Realize the correction to two cell polar ears, the first correction part 21 and second part 22 of rectifying a deviation could be arranged to two groups, and two groups of passes Centre of location line when battery core 5 is positioned is symmetrical arranged.
When the first correction correction part 22 of part 21 and second is rectified a deviation to cell polar ear, having in the presence of correction power can Battery core 5 can be caused to overturn, in order to avoid this defect, as shown in fig. 6, deviation correction mechanism 2 also includes cover plate 23, cover plate 23 is just to electricity Core lug, and spaced between cell polar ear, and those skilled in the art can rationally be set to the interval.
In the embodiment shown in fig. 6, cover plate 23 is rotationally connected with the body of deviation correction mechanism 2, and cover plate 23 is by rotating Realize and open and close.Further, deviation correction mechanism 2 can also include motor 24 of uncapping, rotating shaft and the cover plate 23 of motor 24 of uncapping Rotary shaft connect to realize opening and closing automatically for cover plate 23.
As shown in figure 1, deviation correcting device also includes laminating mechanism 3, laminating mechanism 3 has the continuous first pressing stroke and the Two pressing strokes, in the first pressing stroke, laminating mechanism 3 can drive the first correction part 21 to be entangled with the second correction generation of part 22 Inclined stroke, in the second pressing stroke, laminating mechanism 3 can compress the main part of battery core 5.The program realizes laminating mechanism 3 with the linkage of deviation correction mechanism 2 so that pressing action and correction action are continuously finished, and are saved the time, are improved deviation correcting device Operating efficiency.
Specifically, as shown in fig. 6, deviation correction mechanism 2 includes briquetting 25, briquetting 25 entangles with the first correction part 21 and second Inclined part 22 is connected, the drive mechanism of the correction correction part 22 of part 21 and second of briquetting 25 and first can refer to STATEMENT OF FEDERALLY SPONSORED 14 and The drive mechanism of first keeper 11 and the second keeper 12, here is omitted.
In the application, as shown in figure 1, deviation correcting device also includes transfer mechanism 4, detent mechanism 1 and deviation correction mechanism 2 are pacified Loaded on transfer mechanism 4, and transfer mechanism 4 can drive detent mechanism 1 and deviation correction mechanism 2 to move, so that the main part of battery core 5 Dividing can be located in the second pressing stroke of laminating mechanism 3.After such scheme, before the positioning of battery core 5, moving machine can be passed through Structure 4 removes detent mechanism 1, positioning is realized in order to which battery core 5 is put into detent mechanism 1 by manipulator, so as to increase manipulator Space.Treat battery core positioning after the completion of, then by travel mechanism 4 by detent mechanism 1 move to laminating mechanism 3 second pressing In stroke, so that battery core main body be pressed.
In the embodiment shown in fig. 1, laminating mechanism 3 is hot pressing mechanism, and effect is preferable for the relative cold pressing of hot pressing effect, The fixed effect of battery core 5 is good.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.

Claims (9)

1. a kind of deviation correcting device of cell polar ear, the deviation correcting device includes detent mechanism and deviation correction mechanism, it is characterised in that
The detent mechanism includes the first keeper and the second keeper, and first keeper and second keeper are equal Can be towards close to a mutual lateral movement, to form the first movement travel moved to from initial position at position location respectively With the second movement travel, and first movement travel is equal with second movement travel,
At the position location, first keeper and second keeper can respectively with battery core relative to lug Bearing of trend two opposite sides against positioning,
The deviation correction mechanism includes the first correction part and the second correction part,
By the detent mechanism position after the lug can be located at described first correction part with described second correction part it Between,
And the first correction part is respectively provided with the correction stroke of close/side away from each other with the described second correction part,
In the correction stroke, the first correction part can connect with the described second correction part with the two opposite sides of the lug Touch, for correcting the position of the lug.
2. deviation correcting device according to claim 1, it is characterised in that the detent mechanism also includes support member,
First keeper and second keeper are movably connected on the support member, and first movement travel is institute State active strokes of first keeper relative to the support member, second movement travel be second keeper relative to The active strokes of the support member.
3. deviation correcting device according to claim 2, it is characterised in that the detent mechanism also includes STATEMENT OF FEDERALLY SPONSORED,
First keeper and second keeper are flexibly connected with the STATEMENT OF FEDERALLY SPONSORED,
The STATEMENT OF FEDERALLY SPONSORED can drive first keeper and second keeper on the support member to close to that At this side activity to the position location,
And the direction of motion of the STATEMENT OF FEDERALLY SPONSORED and the activity direction of first keeper and second keeper are perpendicular.
4. deviation correcting device according to claim 3, it is characterised in that the STATEMENT OF FEDERALLY SPONSORED is slided provided with the first chute and second Groove, first keeper includes the first sliding pin, and second keeper includes the second sliding pin,
First chute and the second chute relative tilt and it is symmetrical arranged, both line of symmetries are parallel to the STATEMENT OF FEDERALLY SPONSORED The direction of motion,
And first sliding pin is slidably connected in first chute, second sliding pin is slidably connected in second chute.
5. the deviation correcting device according to claim any one of 2-4, it is characterised in that the detent mechanism also includes floating Part, first keeper and second keeper are by the floating part and the support member floating connection, to drive First keeper and second keeper can float along the thickness direction of the battery core.
6. the deviation correcting device according to claim any one of 1-4, it is characterised in that it is fixed that the detent mechanism also includes auxiliary Position part, the auxiliary positioning part can be with the opposite side of side where the lug in the battery core against positioning.
7. the deviation correcting device according to claim any one of 1-4, it is characterised in that also including laminating mechanism, the pressing Mechanism has continuous first pressing stroke and the second pressing stroke,
In the described first pressing stroke, the laminating mechanism can drive the first correction part and the described second correction part production The raw correction stroke,
In the described second pressing stroke, the laminating mechanism can compress the main part of the battery core.
8. deviation correcting device according to claim 7, it is characterised in that also including transfer mechanism, the detent mechanism and The deviation correction mechanism is mounted on the transfer mechanism, and the transfer mechanism can drive the detent mechanism and described entangle Inclined mechanism kinematic, so that the main part of the battery core can be located in the second pressing stroke of the laminating mechanism.
9. deviation correcting device according to claim 7, it is characterised in that the laminating mechanism is hot pressing mechanism.
CN201720042691.0U 2017-01-13 2017-01-13 The deviation correcting device of cell polar ear Active CN206516712U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720042691.0U CN206516712U (en) 2017-01-13 2017-01-13 The deviation correcting device of cell polar ear

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Application Number Priority Date Filing Date Title
CN201720042691.0U CN206516712U (en) 2017-01-13 2017-01-13 The deviation correcting device of cell polar ear

Publications (1)

Publication Number Publication Date
CN206516712U true CN206516712U (en) 2017-09-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107946532A (en) * 2017-11-24 2018-04-20 广东南大机器人有限公司 A kind of lithium battery production facility
CN108321422A (en) * 2018-02-06 2018-07-24 惠州市隆合科技有限公司 A kind of the closedtop mechanism and its closedtop method of battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107946532A (en) * 2017-11-24 2018-04-20 广东南大机器人有限公司 A kind of lithium battery production facility
CN107946532B (en) * 2017-11-24 2020-11-10 广东南大机器人有限公司 Lithium battery sheet-making equipment
CN108321422A (en) * 2018-02-06 2018-07-24 惠州市隆合科技有限公司 A kind of the closedtop mechanism and its closedtop method of battery

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