CN111883734B - Steel ball sealing device for cylindrical lithium battery - Google Patents
Steel ball sealing device for cylindrical lithium battery Download PDFInfo
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- CN111883734B CN111883734B CN202010863173.1A CN202010863173A CN111883734B CN 111883734 B CN111883734 B CN 111883734B CN 202010863173 A CN202010863173 A CN 202010863173A CN 111883734 B CN111883734 B CN 111883734B
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- lithium battery
- cylindrical lithium
- steel ball
- positioning
- sealing device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
Abstract
The invention provides a steel ball sealing device for a cylindrical lithium battery, which comprises: fixed positioning mechanism, remove fixed establishment, registration arm and first actuating mechanism, fixed positioning mechanism and removal fixed establishment mutual disposition, but mobile positioning mechanism is used for driving the cylinder lithium cell and removes to fixed positioning mechanism, so that but mobile positioning mechanism and fixed positioning mechanism cooperation centre gripping cylinder lithium cell, the inside bottom open-ended hollow structure that is of registration arm, the first through-hole has been seted up with the utmost point post department of corresponding of cylinder lithium cell in registration arm top, the second through-hole has been seted up with the notes liquid hole department of corresponding of cylinder lithium cell in registration arm top, the even formation of extending downwards in second through-hole inner wall bottom is used for inhaling the suction nozzle of putting the steel ball, first actuating mechanism is used for making the registration arm cover establish on the cylinder lithium cell and make the absorption steel ball of suction nozzle impress the notes liquid hole of cylinder lithium cell. The invention greatly improves the stability and the accuracy of positioning the cylindrical lithium battery and effectively improves the steel ball sealing effect of the cylindrical lithium battery.
Description
Technical Field
The invention relates to the technical field of lithium battery steel ball pumping equipment, in particular to a steel ball sealing device for a cylindrical lithium battery.
Background
The lithium ion battery is a secondary battery (rechargeable battery) and has the advantages of high output voltage, large specific energy, long cycle life, good safety performance, small self-discharge, rapid charge and discharge and the like. The lithium ion battery, especially the cylindrical lithium ion battery, needs to be sealed in the production process, and if the sealing is not good, the leakage of the liquid injection hole can corrode the sealant, the shell and the pole, so that the battery is scrapped and fails.
In the prior art, the battery is generally roughly positioned by a fixing block, and a steel ball is directly hammered by mechanical transmission. But because the cylinder battery can rotate in the transportation process, when the cylinder battery moves to the steel ball sealing station, the liquid injection hole of the cylinder battery possibly deviates from the position of the steel ball to be sealed, so that the steel ball is knocked to deviate, and the battery has the leakage problem.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a steel ball sealing device for a cylindrical lithium battery.
The invention provides a steel ball sealing device for a cylindrical lithium battery, which comprises: the device comprises a fixed positioning mechanism, a movable fixing mechanism, a positioning pipe and a first driving mechanism;
the fixed positioning mechanism and the movable fixing mechanism are arranged oppositely, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move towards the fixed positioning mechanism so that the movable fixing mechanism and the fixed positioning mechanism are matched to clamp the cylindrical lithium battery;
the inside of the positioning tube is of a hollow structure with an opening at the bottom end, a first through hole is formed in the position, corresponding to the pole column of the cylindrical lithium battery, of the top end of the positioning tube, a second through hole is formed in the position, corresponding to the liquid injection hole of the cylindrical lithium battery, of the top end of the positioning tube, and the bottom end of the inner wall of the second through hole extends downwards uniformly to form a suction nozzle for sucking and placing steel balls;
first actuating mechanism and registration arm drive connection, first actuating mechanism are used for making the registration arm cover establish on the cylinder lithium cell and make the adsorbed steel ball of suction nozzle impress the notes liquid hole of cylinder lithium cell.
Preferably, the inner diameter of the positioning pipe is in clearance fit with the outer diameter of the cylindrical lithium battery.
Preferably, the fixed positioning mechanism comprises a positioning plate which is fixed in advance, the height of the positioning plate is matched with the height of a pole of the cylindrical lithium battery, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move so that the pole of the cylindrical lithium battery abuts against the positioning plate;
the positioning pipe side wall and the positioning plate are provided with a notch corresponding to the positioning plate, and the notch is formed by upwards extending the bottom end of the positioning pipe side wall.
Preferably, the movable fixing mechanism comprises a stop block and a second driving mechanism, the second driving mechanism is in driving connection with the stop block, a limiting through groove penetrating up and down is formed in one side, facing the battery, of the stop block, and the second driving mechanism is used for driving the stop block to push the cylindrical lithium battery to be close to the positioning plate.
Preferably, the aperture of the limiting through groove gradually shrinks and becomes smaller along the direction from the notch to the groove bottom.
Preferably, the number of the notches is multiple, and the multiple notches are arranged at intervals along the circumferential direction of the side wall of the positioning pipe.
Preferably, the internal diameter of the suction nozzle is slightly smaller than the diameter of the steel ball.
Preferably, the bottom end of the suction nozzle is provided with a chamfer.
Preferably, the top end of the inner wall of the second through hole extends upwards uniformly to form a connecting pipeline for communicating with the negative pressure generator.
According to the invention, the cylindrical lithium battery is roughly fixed through the fixed positioning mechanism and the movable fixing mechanism, and is positioned by sleeving the positioning pipe on the cylindrical lithium battery, so that the movement and the inclination of the cylindrical lithium battery caused by uneven stress of the fixed positioning mechanism and the movable fixing mechanism are avoided, the accurate positioning effect of the suction nozzle and the cylindrical lithium battery can be improved, the steel balls adsorbed on the suction nozzle can be favorably pressed into the liquid injection holes, and the steel balls are prevented from being dislocated with the liquid injection holes.
In a word, the positioning device greatly improves the stability and the accuracy of positioning the cylindrical lithium battery through the cooperation of the fixed positioning mechanism, the movable fixing mechanism and the positioning tube, thereby effectively improving the steel ball sealing effect of the cylindrical lithium battery.
Drawings
Fig. 1 is an exploded schematic view of a steel ball sealing device for a cylindrical lithium battery according to the present invention.
Detailed Description
Referring to fig. 1, the invention provides a steel ball sealing device for a cylindrical lithium battery, which comprises: the device comprises a fixed positioning mechanism, a movable fixing mechanism, a positioning pipe 1 and a first driving mechanism;
the fixed positioning mechanism and the movable fixing mechanism are arranged oppositely, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move towards the fixed positioning mechanism so that the movable fixing mechanism and the fixed positioning mechanism are matched to clamp the cylindrical lithium battery;
the interior of the positioning tube 1 is of a hollow structure with an opening at the bottom end, a first through hole is formed in the position, corresponding to the pole column of the cylindrical lithium battery, of the top end of the positioning tube 1, a second through hole is formed in the position, corresponding to the liquid injection hole of the cylindrical lithium battery, of the top end of the positioning tube 1, and the bottom end of the inner wall of the second through hole extends downwards uniformly to form a suction nozzle for sucking and placing steel balls;
first actuating mechanism and 1 drive connection of registration arm, first actuating mechanism are used for making 1 covers of registration arm establish on the cylinder lithium cell and make the adsorbed steel ball of suction nozzle impress the notes liquid hole of cylinder lithium cell.
According to the invention, the cylindrical lithium battery is roughly fixed by the fixed positioning mechanism and the movable fixing mechanism, and is positioned on the cylindrical lithium battery by the positioning pipe 1 sleeve, so that the movement and the inclination of the cylindrical lithium battery caused by uneven stress of the fixed positioning mechanism and the movable fixing mechanism are avoided, the accurate positioning effect of the suction nozzle and the cylindrical lithium battery can be improved, the steel balls adsorbed on the suction nozzle can be favorably pressed into the liquid injection hole, and the steel balls are prevented from being dislocated with the liquid injection hole.
In a word, the invention greatly improves the stability and the accuracy of the positioning of the cylindrical lithium battery through the matching of the fixed positioning mechanism, the movable fixing mechanism and the positioning tube 1, thereby effectively improving the steel ball sealing effect of the cylindrical lithium battery.
In order to avoid the arbitrary cylinder lithium cell that breaks away from of registration arm 1, improve the location effect of registration arm 1 and cylinder lithium cell, in this embodiment, 1 internal diameter of registration arm and cylinder lithium cell external diameter clearance fit.
In order to limit the rotation of the cylindrical lithium battery and ensure axial positioning, so as to further improve the positioning effect of the cylindrical lithium battery, in the embodiment, the fixed positioning mechanism comprises a positioning plate 2 which is fixed in advance, the height of the positioning plate 2 is matched with the height of a pole of the cylindrical lithium battery, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move so that the pole of the cylindrical lithium battery is abutted against the positioning plate 2;
the side wall of the positioning tube 1 is provided with a notch corresponding to the positioning plate 2 for avoiding the positioning plate 2, and the notch is formed by upward extending the bottom end of the side wall of the positioning tube 1.
In order to guarantee the promotion effect of movable fixing mechanism to the cylinder lithium cell, avoid the cylinder lithium cell to misplace at the process of removing, in this embodiment, movable fixing mechanism includes stop block 3 and second actuating mechanism, and second actuating mechanism and 3 drive of stop block are connected, and the spacing logical groove that runs through from top to bottom is seted up towards one side of battery to stop block 3, and second actuating mechanism is used for driving stop block 3 and promotes the cylinder lithium cell and be close to locating plate 2.
In order to improve the positioning effect of stop block 3 to the cylinder lithium cell to make the accurate top of utmost point post of cylinder lithium cell lean on locating plate 2, improve the positioning effect of cylinder lithium cell, in this embodiment, spacing logical groove is followed the notch and is shrunk gradually to tank bottom direction bore.
In order to reduce the friction that locating tube 1 internal week side and cylinder lithium cell produced at the rotational positioning in-process, avoid influencing the quality of cylinder lithium cell shell, in this embodiment, the quantity of breach is a plurality of, and the circumference interval arrangement of 1 lateral wall of locating tube is followed to a plurality of breachs.
In order to ensure the pre-fixing effect of the suction nozzle on the steel ball without influencing the steel ball hitting, in the embodiment, the inner diameter of the suction nozzle is slightly smaller than the diameter of the steel ball.
In order to further ensure the pre-fixing effect of the suction nozzle on the steel ball, in the embodiment, the bottom end of the suction nozzle is provided with a chamfer.
In order to conveniently suck and release the steel balls, the top end of the inner wall of the second through hole extends upwards uniformly to form a connecting pipeline communicated with the negative pressure generator.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a seal steel ball device for cylinder lithium cell which characterized in that includes: the device comprises a fixed positioning mechanism, a movable fixing mechanism, a positioning pipe (1) and a first driving mechanism;
the fixed positioning mechanism and the movable fixing mechanism are arranged oppositely, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move towards the fixed positioning mechanism so that the movable fixing mechanism and the fixed positioning mechanism are matched to clamp the cylindrical lithium battery;
the interior of the positioning tube (1) is of a hollow structure with an opening at the bottom end, a first through hole is formed in the position, corresponding to the pole column of the cylindrical lithium battery, of the top end of the positioning tube (1), a second through hole is formed in the position, corresponding to the liquid injection hole of the cylindrical lithium battery, of the top end of the positioning tube (1), and the bottom end of the inner wall of the second through hole extends downwards uniformly to form a suction nozzle for sucking and placing steel balls;
the first driving mechanism is in driving connection with the positioning pipe (1), and is used for enabling the positioning pipe (1) to be sleeved on the cylindrical lithium battery and enabling the steel balls adsorbed by the suction nozzle to be pressed into the liquid injection hole of the cylindrical lithium battery;
the fixed positioning mechanism comprises a positioning plate (2) which is fixed in advance, the height of the positioning plate (2) is matched with the height of a pole of the cylindrical lithium battery, and the movable fixing mechanism is used for driving the cylindrical lithium battery to move until the pole of the cylindrical lithium battery abuts against the positioning plate (2);
the side wall of the positioning tube (1) is provided with a notch used for avoiding the positioning plate (2) at the corresponding position of the positioning plate (2), and the notch is formed by upwards extending the bottom end of the side wall of the positioning tube (1).
2. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 1, wherein the inner diameter of the positioning tube (1) is in clearance fit with the outer diameter of the cylindrical lithium battery.
3. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 1, wherein the movable fixing mechanism comprises a stop block (3) and a second driving mechanism, the second driving mechanism is in driving connection with the stop block (3), a limiting through groove penetrating up and down is formed in one side, facing the battery, of the stop block (3), and the second driving mechanism is used for driving the stop block (3) to push the cylindrical lithium battery to approach the positioning plate (2).
4. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 3, wherein the aperture of the limiting through groove gradually shrinks and becomes smaller along the direction from the groove opening to the groove bottom.
5. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 1, wherein the number of the notches is multiple, and the notches are circumferentially arranged along the side wall of the positioning tube (1) at intervals.
6. The steel ball sealing device for the cylindrical lithium battery as claimed in any one of claims 1 to 4, wherein the inner diameter of the suction nozzle is slightly smaller than the diameter of the steel ball.
7. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 6, wherein a chamfer is formed at the bottom end of the suction nozzle.
8. The steel ball sealing device for the cylindrical lithium battery as claimed in claim 7, wherein the top end of the inner wall of the second through hole extends upwards uniformly to form a connecting pipeline for communicating with the negative pressure generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863173.1A CN111883734B (en) | 2020-08-25 | 2020-08-25 | Steel ball sealing device for cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863173.1A CN111883734B (en) | 2020-08-25 | 2020-08-25 | Steel ball sealing device for cylindrical lithium battery |
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| Publication Number | Publication Date |
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| CN111883734A CN111883734A (en) | 2020-11-03 |
| CN111883734B true CN111883734B (en) | 2022-08-09 |
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| CN202010863173.1A Active CN111883734B (en) | 2020-08-25 | 2020-08-25 | Steel ball sealing device for cylindrical lithium battery |
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Citations (7)
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| JP2007323860A (en) * | 2006-05-30 | 2007-12-13 | Hitachi Maxell Ltd | Sealed battery |
| CN103682238A (en) * | 2012-09-14 | 2014-03-26 | 江苏海孚新能源科技有限公司 | Electrolyte injection hole structure and electrolyte injection method for lithium ion battery |
| CN204179152U (en) * | 2014-10-13 | 2015-02-25 | 中航锂电（洛阳）有限公司 | Battery holder fixture and use the lithium battery steel ball sealing device of this clamping device |
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| CN109755458A (en) * | 2019-02-22 | 2019-05-14 | 合肥国轩高科动力能源有限公司 | A kind of power cylindrical battery fluid injection is to aperture apparatus |
| CN208992048U (en) * | 2018-09-20 | 2019-06-18 | 合肥国轩高科动力能源有限公司 | A kind of cylindrical lithium battery current collecting plates positioning jig device |
| CN209919186U (en) * | 2019-01-24 | 2020-01-10 | 大族激光科技产业集团股份有限公司 | Battery welding jig and use its welding equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204720495U (en) * | 2015-03-30 | 2015-10-21 | 深圳市斯盛能源股份有限公司 | A kind of lithium ion battery steel ball sealing device |
| CN204497308U (en) * | 2015-04-15 | 2015-07-22 | 浙江金开来新能源科技有限公司 | A kind of liquid injection hole packaging system for lithium battery |
| CN204991783U (en) * | 2015-10-19 | 2016-01-20 | 宁德时代新能源科技有限公司 | Secondary cell top cap |
| CN209133598U (en) * | 2018-11-26 | 2019-07-19 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery liquid injection hole envelope steel ball device |
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2020
- 2020-08-25 CN CN202010863173.1A patent/CN111883734B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007323860A (en) * | 2006-05-30 | 2007-12-13 | Hitachi Maxell Ltd | Sealed battery |
| CN103682238A (en) * | 2012-09-14 | 2014-03-26 | 江苏海孚新能源科技有限公司 | Electrolyte injection hole structure and electrolyte injection method for lithium ion battery |
| CN204179152U (en) * | 2014-10-13 | 2015-02-25 | 中航锂电（洛阳）有限公司 | Battery holder fixture and use the lithium battery steel ball sealing device of this clamping device |
| CN109361020A (en) * | 2018-09-19 | 2019-02-19 | 合肥国轩高科动力能源有限公司 | A kind of formation of Li-ion batteries partial volume positioning and guiding block |
| CN208992048U (en) * | 2018-09-20 | 2019-06-18 | 合肥国轩高科动力能源有限公司 | A kind of cylindrical lithium battery current collecting plates positioning jig device |
| CN209919186U (en) * | 2019-01-24 | 2020-01-10 | 大族激光科技产业集团股份有限公司 | Battery welding jig and use its welding equipment |
| CN109755458A (en) * | 2019-02-22 | 2019-05-14 | 合肥国轩高科动力能源有限公司 | A kind of power cylindrical battery fluid injection is to aperture apparatus |
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| CN111883734A (en) | 2020-11-03 |
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