CN103050735B - Anode lug bending and sealing body press-in device for cylindrical lithium battery - Google Patents
Anode lug bending and sealing body press-in device for cylindrical lithium battery Download PDFInfo
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- CN103050735B CN103050735B CN201210579364.0A CN201210579364A CN103050735B CN 103050735 B CN103050735 B CN 103050735B CN 201210579364 A CN201210579364 A CN 201210579364A CN 103050735 B CN103050735 B CN 103050735B
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- bending
- positive pole
- pole ear
- lithium battery
- seal body
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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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- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses an anode lug bending and sealing body press-in device for a cylindrical lithium battery, which is characterized by comprising an anode lug bending mechanism and a press-in mechanism, wherein the press-in mechanism is positioned right above a sealing port to be pressed in; the anode lug bending mechanism comprises a limiting assembly and an ejecting and pressing rod; the limiting assembly is positioned at one side of an anode lug; the ejecting and pressing rod is positioned at the other side of the anode lug; the limiting assembly is provided with a space for accommodating the bent anode lug; the space is provided with an opening which is towards the anode lug; and in the bending process, the anode lug is ejected and pressed by the ejecting and pressing rod to generate bending deformation and the bent anode lug enters the space from the opening. The anode lug bending and sealing body press-in device for the cylindrical lithium battery has the advantages that the device has good controllability; after the anode lug is bent and the sealing body is pressed into a steel shell of the battery, the anode lug is generally of an S shape; the battery leakage phenomenon caused by the case the anode lug is clamped between the steel shell of the battery and a sealing ring is avoided; the anode lug has a good current collecting effect; discharge capacity of the lithium battery can be effectively ensured; and the produced lithium battery has good sealing performance.
Description
Technical field
The present invention relates to the mounting equipment of cylinder type lithium battery, specifically relate to the bending of a kind of cylinder type lithium battery positive pole ear and seal body press-in device.
Background technology
Positive pole ear of lithium battery is the collector of anode, be positioned at after welding with battery seal body below seal body, need to carry out bending with definite shape, and be pressed into battery steel shell together with seal body, be positioned at the sealing ring of battery steel shell after press-in, sealing ring is positioned at the top of battery steel shell.
The mode of existing positive pole ear of lithium battery bending and seal body press-in battery steel shell mainly contains two classes: one is adopt manual bending and the manual press mode of seal body, and adopt in this way, poor controllability, efficiency is low; Two is adopt side wrap direction, easily causes lug to snap between battery steel shell and sealing ring, makes battery steel shell poor sealing, cause battery leakage.Therefore, the mode poor controllability of existing positive pole ear of lithium battery bending and seal body press-in battery steel shell, efficiency is low, in actual mechanical process, easily damage is caused to positive pole ear, sealing ring and seal body, cause the catchment effect of positive pole ear bad, reduce the discharge capacity of lithium battery; Easily there is the situation that seal body directly contacts with battery steel shell simultaneously, and now lithium battery has had voltage, this can cause battery short circuit to hold drops, battery capacity declines, and once lug snaps in sealing ring, then can cause the damage of sealing ring and seal body, reduce the sealing of battery steel shell, very easily cause battery leakage consequence.
Summary of the invention
Technical problem to be solved by this invention is to provide the good cylinder type lithium battery positive pole ear bending of a kind of controllability and seal body press-in device, adopts the lithium battery good airproof performance that this device is produced.
The present invention solves the problems of the technologies described above adopted technical scheme: the bending of a kind of cylinder type lithium battery positive pole ear and seal body press-in device, comprise positive pole ear bending mechanism and pressing mechanism, described pressing mechanism is positioned to be treated directly over press-in seal body, described positive pole ear bending mechanism comprises limit assembly and compression bar, described limit assembly is positioned at the side of positive pole ear, described compression bar is positioned at the opposite side of positive pole ear, described limit assembly has the space holding bending positive pole ear, described space has the opening towards positive pole ear, during bending, positive pole ear is produced flexural deformation by compression bar top pressure, bending positive pole ear enters in space from opening.
Preferably, the actuated lever assemblies that described pressing mechanism comprises newel and is connected with the first spring, described actuated lever assemblies comprises fixed mount, described newel is fixed on described fixed mount, the second spring is provided with between described fixed mount and described newel, one end of the second described spring is fixed on described fixed mount, the other end of the second described spring is fixed on described newel, described newel overcoat has the battery steel shell fixed cover for self-contained battery box hat, and the front end of described newel is provided with insulation pressure head.Battery steel shell fixed cover plays self-contained battery box hat; Due to the elasticity pretension effect of the first spring, when seal body press-in battery steel shell position to some extent deviation time, under the drive of fixed mount, battery steel shell fixed cover centrally can move up and down this position deviation of elimination by post, ensures that insulation pressure head pushes down seal body with certain elastic force all the time simultaneously; The second spring arranged between fixed mount and newel, adjustable battery steel shell fixed cover is to the thrust of battery steel shell, battery steel shell fixed cover is made to fix battery steel shell with certain thrust all the time, thus seal body is pressed into battery steel shell smoothly, avoid in process of press in and produce shorted contacts between seal body and battery steel shell.
Preferably, described pressing mechanism also comprises alignment pin, described newel is provided with radial direction through hole, the aperture of described radial direction through hole is greater than the external diameter of described alignment pin, described alignment pin is fixed on battery steel shell fixed cover through described radial direction through hole, and during use, battery steel shell fixed cover can centrally move up and down by post.Alignment pin plays the effect of self-contained battery box hat fixed cover, and battery steel shell fixed cover in process of press in can not be rotated, thus ensures that seal body does not rotate, and the sealing avoiding seal body rotation generation is bad.
Preferably, during bending, described compression bar and the angle of horizontal direction are 3 ~ 45 °.During bending, compression bar is from the horizontal by an angle, and compression bar can be avoided to contact with battery steel shell and damage battery steel shell.
Preferably, described limit assembly is made up of two parallel bending sheets, and described space is surrounded by described two parallel bending sheets.
Preferably, the distance between described two parallel bending sheets is 3 ~ 8mm.
Preferably, described battery steel shell fixed cover is provided with the first breach passed for described compression bar and the second breach passed for described limit assembly.
Preferably, the lower end of described battery steel shell fixed cover is provided with the spacing conical surface.
Compared with prior art, the invention has the advantages that: cylinder type lithium battery positive pole ear of the present invention bending and seal body press-in device, its positive pole ear bending mechanism comprises limit assembly and compression bar, limit assembly is positioned at the side of positive pole ear, compression bar is positioned at the opposite side of positive pole ear, limit assembly has the space holding bending positive pole ear, space has the opening towards positive pole ear, during use, positive pole ear is produced flexural deformation by compression bar top pressure and enters in space from opening, then pressing mechanism is by the sealing ring of the positive pole ear press-in battery steel shell after bending, after bending is also pressed into, positive pole ear is substantially in serpentine, because limit assembly has the space holding bending positive pole ear, the bending of positive pole ear is limited in this space, thus limit its stretched dimensions in radial direction, avoid positive pole ear and snap in the battery leakage phenomenon caused between battery steel shell and sealing ring, can not to seal body, positive pole ear and sealing ring cause damage, the catchment effect of positive pole ear is good, effectively can ensure the discharge capacity of lithium battery.Therefore, cylinder type lithium battery positive pole ear of the present invention bending and seal body press-in device controllability good, adopt the lithium battery good airproof performance that this device is produced.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment device;
Fig. 2 is the structural representation of the pressing mechanism of embodiment device;
Fig. 3 ~ 6 are the course of work schematic diagram of embodiment device.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in the figure, the bending of a kind of cylinder type lithium battery positive pole ear and seal body press-in device, comprise positive pole ear bending mechanism 1 and be positioned at and wait to be pressed into the pressing mechanism 2 directly over seal body 3; Positive pole ear bending mechanism 1 comprises the limit assembly 12 of the side being positioned at positive pole ear 11 and is positioned at the compression bar 13 of opposite side of positive pole ear 11; The bending sheet 14 that limit assembly 12 is 5mm by two parallel spacing forms, these two parallel bending sheets 14 surround the space 15 holding bending positive pole ear 111, this space 15 has the opening 16 towards positive pole ear 11, during bending, compression bar 13 is 10 ° with the angle of horizontal direction, positive pole ear 11 is pushed up pressure by compression bar 13 and produces flexural deformation, and bending positive pole ear 111 enters in space 15 from opening; The actuated lever assemblies 24 that pressing mechanism 2 comprises newel 21, alignment pin 22 and is connected with the first spring 23, actuated lever assemblies 24 comprises fixed mount 25, newel 21 is threaded and is fixed on fixed mount 25, the second spring 26 is provided with between fixed mount 25 and newel 21, one end of second spring 26 is fixed on fixed mount 25, and the other end of the second spring 26 is fixed on newel 21; Newel 21 overcoat has the battery steel shell fixed cover 27 for self-contained battery box hat 4, the front end of newel 21 is provided with insulation pressure head 28, newel 21 is provided with radial direction through hole 29, the aperture of radial direction through hole 29 is greater than the external diameter of alignment pin 22, and alignment pin 22 is fixed on battery steel shell fixed cover 27 through radial direction through hole 29; During use, battery steel shell fixed cover 27 can centrally move up and down by post 21; Battery steel shell fixed cover 27 is provided with the first breach 271 passed for compression bar 13 and the second breach 272 passed for limit assembly 12, and the lower end of battery steel shell fixed cover 27 is provided with the spacing conical surface 273.
Cylinder type lithium battery positive pole ear of the present invention bending and seal body press-in device are work like this: before bending, as shown in Figure 3, pressing mechanism is positioned at treats that directly over press-in seal body, limit assembly is positioned at the side of positive pole ear, and compression bar is positioned at the opposite side of positive pole ear; During bending, as shown in Figure 4, limit assembly and compression bar move to positive pole ear, positive pole ear is produced flexural deformation by compression bar top pressure, and bending positive pole ear enters in space from opening, and the flexural deformation of positive pole ear is limited in this space, thus limit the stretched dimensions of bending positive pole ear in radial direction, under the drive of the fixed mount simultaneously in actuated lever assemblies, pressing mechanism starts to move down, and the seal body prepared welding together with bending positive pole ear is exerted pressure; During press-in, as shown in Figure 5, pressing mechanism continues to move down, insulation pressure head seals seal body with certain elastic force, and exerts pressure to seal body, and seal body is pressed in battery steel shell gradually, positive pole ear produces flexural deformation further, and limit assembly and compression bar leave bending positive pole ear simultaneously; After being pressed into, as shown in Figure 6, seal body is pressed completely in battery steel shell, and the flexural deformation of positive pole ear also all completes, and now, positive pole ear is substantially in serpentine.
Claims (7)
1. cylinder type lithium battery positive pole ear bending and seal body press-in device, it is characterized in that: comprise positive pole ear bending mechanism and pressing mechanism, described pressing mechanism is positioned to be treated directly over press-in seal body, the actuated lever assemblies that described pressing mechanism comprises newel and is connected with the first spring, described actuated lever assemblies comprises fixed mount, described newel is fixed on described fixed mount, the second spring is provided with between described fixed mount and described newel, one end of the second described spring is fixed on described fixed mount, the other end of the second described spring is fixed on described newel, described newel overcoat has the battery steel shell fixed cover for self-contained battery box hat, the front end of described newel is provided with insulation pressure head, described positive pole ear bending mechanism comprises limit assembly and compression bar, described limit assembly is positioned at the side of positive pole ear, described compression bar is positioned at the opposite side of positive pole ear, described limit assembly has the space holding bending positive pole ear, described space has the opening towards positive pole ear, during bending, positive pole ear is produced flexural deformation by compression bar top pressure, bending positive pole ear enters in space from opening.
2. a kind of cylinder type lithium battery positive pole ear according to claim 1 bending and seal body press-in device, it is characterized in that: described pressing mechanism also comprises alignment pin, described newel is provided with radial direction through hole, the aperture of described radial direction through hole is greater than the external diameter of described alignment pin, described alignment pin is fixed on battery steel shell fixed cover through described radial direction through hole, and during use, battery steel shell fixed cover can centrally move up and down by post.
3. a kind of cylinder type lithium battery positive pole ear bending according to any one of claim 1 ~ 2 and seal body press-in device, is characterized in that: during bending, and described compression bar and the angle of horizontal direction are 3 ~ 45 °.
4. a kind of cylinder type lithium battery positive pole ear according to claim 1 bending and seal body press-in device, is characterized in that: described limit assembly is made up of two parallel bending sheets, and described space is surrounded by described two parallel bending sheets.
5. a kind of cylinder type lithium battery positive pole ear according to claim 4 bending and seal body press-in device, is characterized in that: the distance between described two parallel bending sheets is 3 ~ 8mm.
6. a kind of cylinder type lithium battery positive pole ear according to claim 1 bending and seal body press-in device, is characterized in that: described battery steel shell fixed cover is provided with the first breach passed for described compression bar and the second breach passed for described limit assembly.
7. a kind of cylinder type lithium battery positive pole ear according to claim 1 bending and seal body press-in device, is characterized in that: the lower end of described battery steel shell fixed cover is provided with the spacing conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579364.0A CN103050735B (en) | 2012-12-27 | 2012-12-27 | Anode lug bending and sealing body press-in device for cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210579364.0A CN103050735B (en) | 2012-12-27 | 2012-12-27 | Anode lug bending and sealing body press-in device for cylindrical lithium battery |
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| Publication Number | Publication Date |
|---|---|
| CN103050735A CN103050735A (en) | 2013-04-17 |
| CN103050735B true CN103050735B (en) | 2015-02-25 |
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| CN201210579364.0A Active CN103050735B (en) | 2012-12-27 | 2012-12-27 | Anode lug bending and sealing body press-in device for cylindrical lithium battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3852167A4 (en) * | 2019-03-21 | 2022-02-09 | LG Energy Solution Ltd. | Battery manufacturing device and manufacturing method for battery |
| US11804639B2 (en) * | 2020-07-23 | 2023-10-31 | GM Global Technology Operations LLC | Multistage plunger systems and methods for forming battery cell tabs |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261724A (en) * | 2014-06-24 | 2016-01-20 | 中山天贸电池有限公司 | Tab bending mold for lithium ion battery and bending method |
| CN109065962A (en) * | 2018-08-10 | 2018-12-21 | 东莞市振华新能源科技有限公司 | A kind of cylindrical lithium ion battery steel shell end socket |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699074U (en) * | 2010-01-20 | 2011-01-05 | 中山天贸电池有限公司 | Automatic bending machine for battery lug |
| CN202259519U (en) * | 2011-09-27 | 2012-05-30 | 江苏福瑞士新能源有限公司 | Tab folding device for power battery |
| CN203026577U (en) * | 2012-12-27 | 2013-06-26 | 中银（宁波）电池有限公司 | Pressing device for positive pole lug bending and sealing body of cylindrical lithium battery |
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2012
- 2012-12-27 CN CN201210579364.0A patent/CN103050735B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699074U (en) * | 2010-01-20 | 2011-01-05 | 中山天贸电池有限公司 | Automatic bending machine for battery lug |
| CN202259519U (en) * | 2011-09-27 | 2012-05-30 | 江苏福瑞士新能源有限公司 | Tab folding device for power battery |
| CN203026577U (en) * | 2012-12-27 | 2013-06-26 | 中银（宁波）电池有限公司 | Pressing device for positive pole lug bending and sealing body of cylindrical lithium battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3852167A4 (en) * | 2019-03-21 | 2022-02-09 | LG Energy Solution Ltd. | Battery manufacturing device and manufacturing method for battery |
| US11804639B2 (en) * | 2020-07-23 | 2023-10-31 | GM Global Technology Operations LLC | Multistage plunger systems and methods for forming battery cell tabs |
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| Publication number | Publication date |
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| CN103050735A (en) | 2013-04-17 |
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