CN102029331A - Manufacture method for stainless steel cover plate of lithium battery - Google Patents
Manufacture method for stainless steel cover plate of lithium battery Download PDFInfo
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- CN102029331A CN102029331A CN 201010594092 CN201010594092A CN102029331A CN 102029331 A CN102029331 A CN 102029331A CN 201010594092 CN201010594092 CN 201010594092 CN 201010594092 A CN201010594092 A CN 201010594092A CN 102029331 A CN102029331 A CN 102029331A
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Abstract
The invention relates to a manufacture method for a stainless steel cover plate of a lithium battery. The manufacture method comprises the following steps of: (a) stamping a positioning hole on a ribbon blank in a stamping way; (b) stamping and forming turnup in the stamping way; (c) stamping a pole post hole and a liquid pouring hole in the stamping way; (d) and blanking and mold-stripping. The invention adopts the stamping way to manufacture metal parts with large thickness, high hardness and high accuracy requirement so as to greatly improve manufacture efficiency, and breaks through the speed bottleneck of low manufacture efficiency in lithium battery production. In addition, as the liquid pouring hole is formed by adopting the stamping way, the inner wall of the liquid pouring hole is smoother, and a follow-up sealed nail can be smoothly pressed in so as to easily operate and ensure the stability of sealing effect. Meanwhile, as the accordance of position and shape of the liquid pouring hole can be ensured by adopting the stamping way, the invention is beneficial to adopt automation equipment in the operation of follow-up electrolyte pouring and liquid pouring hole sealing, and thus, investment in operating workers can be reduced and production efficiency is further improved.
Description
Technical field
The present invention relates to the improvement technology of the inferior battery stainless steel cover of a kind of lithium board manufacturing method.
Background technology
Be the inferior battery stainless steel of lithium cover plate as shown in Figure 1, this stainless steel cover plate is used to be welded on the top of the inferior battery container of lithium, and to be about 4mm pole hole 4 thickness be the thick hard lamellar body 1 of 1.5mm～2.5mm for the centre offers diameter.Lamellar body is provided with and is used for the liquid injection hole 2 that follow-up battery is made injection electrolyte, and this liquid injection hole is that diameter only is between 1.1mm～1.2mm, and the required precision to this liquid injection hole is higher in battery production.Also be provided with flange 3 at the lamellar body periphery simultaneously, the height of this flange only is 0.5mm～1.2mm.
Because stainless steel hardness is too big, making can only be machined for cover plate in the prior art, promptly adopts lathe to make lamellar body stock and flange, processes liquid injection hole and pole hole by bore mode.This shows that there is the defective that manufacturing procedure is many, working (machining) efficiency is low in this processing mode, make the making of this stainless steel cover plate become the bottleneck that influences the entire cell speed of production.And, owing to adopt the mode of boring to process liquid injection hole, at the liquid injection hole inwall irregular screw thread can appear, many defectives appear when follow-up liquid injection hole seals thereby make.As the existence of screw thread when indentation sealing glue in liquid injection hole is followed closely because in the liquid injection hole, glue nail utmost point when squeezing into is had some setbacks, scraping appears in glue nail easily, both influenced the sealing effectiveness of glue nail, increase follow-up removing again and scraped wire process, thereby make whole operation have to adopt artificial mode to be carried out, be difficult to adopt automation equipment to realize automated job.Through statistics, still exist about 1% leakage bad after the formed liquid injection hole sealing of existing processing mode, fraction defective is too high.
Summary of the invention
Technical problem to be solved by this invention provides a kind of deficiency, working (machining) efficiency height, the inferior battery stainless steel cover of stay-in-grade lithium board manufacturing method that overcomes the inferior battery stainless steel of existing lithium cover plate machining mode.
For solving the problems of the technologies described above, the present invention realizes by the following technical solutions:
The inferior battery stainless steel cover of a kind of lithium board manufacturing method, this method comprises following each step:
A), adopt the mode of punching press on banded stock, to stamp out locating hole;
B), adopt the mode punching press of punching press to form flange;
C), adopt the mode of punching press to stamp out pole hole and liquid injection hole;
D), blanking depanning.
Wherein, described c step comprises following steps:
C1), adopt the mode of punching press to stamp out liquid injection hole;
C2), adopt the mode of punching press to stamp out the pole hole;
C3), finishing liquid injection hole.
Concrete order as for each step can be: a-b-c1-c2-c3-d or a-b-c2-c1-c3-d or a-b-c1-c3-c2-d or a-c1-c2-c3-b-d or a-c2-c1-c3-b-d or a-c1-c3-c2-b-d.
For the better punching press effect that guarantees, the impact style that is adopted in each step is cold stamping, and stamping machine is 80 tons～200 tons for the punching press magnitude.
In order further to improve ram efficiency, the mould that each punch steps adopts is the progressive die.
Compared with prior art, the present invention has following advantage:
It is qualitative that the present invention has overcome the thinking of the conventional processing mode of the inferior battery stainless steel of existing lithium cover plate, courageously adopted the mode of punching press to process this metalwork that class thickness is big, hardness is big, required precision is high, make working (machining) efficiency obtain increasing substantially, broken through the low speed bottle-neck of working (machining) efficiency in the inferior battery production of such lithium.And because liquid injection hole adopts impact style to form, the liquid injection hole inwall is more smooth, and is smooth and easy when follow-up fluid sealant nail is pressed into, and is easy to operation, guarantees the stability of sealing effectiveness.Simultaneously,, be more conducive in follow-up electrolyte perfusion, liquid injection hole sealing operation, adopt automation equipment, thereby can reduce operating personnel's input, further enhance productivity because impact style can guarantee the uniformity of liquid injection hole position and shape.
Description of drawings
The specific embodiment
For the ease of those skilled in the art's understanding, structural principle of the present invention is further described in detail below in conjunction with specific embodiment and accompanying drawing:
The inferior battery stainless steel of lithium provided by the invention cover plate adopts the pressing equipment of 80 tons～200 tonnages to utilize the progressive die to be stamped to form, and its concrete preparation method is followed successively by following steps:
A), adopt the mode of punching press on banded stock, to stamp out locating hole;
B), adopt the mode punching press of punching press to form flange;
C1), adopt the mode of punching press to stamp out liquid injection hole;
C2), adopt the mode of punching press to stamp out the pole hole;
C3), the finishing liquid injection hole, fillet by the relevant position on the mould or chamfering form the fillet or the chamfering of liquid injection hole opening part;
D), blanking depanning.
Adopt this mode to make the inferior battery stainless steel of lithium cover plate and overcome defectives such as the working (machining) efficiency that the inferior battery stainless steel of existing lithium cover plate machining mode exists is low, quality is unstable, each Working position precision is low, courageously adopted the mode of punching press to process this metalwork that class thickness is big, hardness is big, required precision is high, make working (machining) efficiency obtain increasing substantially, broken through the low speed bottle-neck of working (machining) efficiency in the inferior battery production of such lithium.And because liquid injection hole adopts impact style to form, the liquid injection hole inwall is more smooth, and is smooth and easy when follow-up fluid sealant nail is pressed into, and is easy to operation, guarantees the stability of sealing effectiveness.Simultaneously,, be more conducive in follow-up electrolyte perfusion, liquid injection hole sealing operation, adopt automation equipment, thereby can reduce operating personnel's input, further enhance productivity because impact style can guarantee the uniformity of liquid injection hole position and shape.
The used progressive die concrete form of punch forming in the present embodiment can be designed according to the ABC of concrete size of this stainless steel cover plate and punch steps order utilization grasp for those of ordinary skills, does not then give unnecessary details at this.
More than be the preferable implementation of the present invention, in addition, the present invention that coexists conceives the implementation that has other down, can be in proper order as each concrete punch steps: a-b-c2-c1-c3-d or a-b-c1-c3-c2-d or a-c1-c2-c3-b-d or a-c2-c1-c3-b-d or a-c1-c3-c2-b-d, said sequence all can produce identical technique effect, does not give unnecessary details one by one at this.Need to prove, the preferred version that the foregoing description is only realized for the present invention, and non-limiting exhaustive, without departing from the inventive concept of the premise, any conspicuous replacement is all within protection domain of the present invention.
Claims (5)
1. the inferior battery stainless steel cover of lithium board manufacturing method is characterized in that this method comprises following each step:
A), adopt the mode of punching press on banded stock, to stamp out locating hole;
B), adopt the mode punching press of punching press to form flange;
C), adopt the mode of punching press to stamp out pole hole and liquid injection hole;
D), blanking depanning.
2. the inferior battery stainless steel cover of lithium according to claim 1 board manufacturing method is characterized in that described c step comprises following steps:
C1), adopt the mode of punching press to stamp out liquid injection hole;
C2), adopt the mode of punching press to stamp out the pole hole;
C3), finishing liquid injection hole.
3. the inferior battery stainless steel cover of lithium according to claim 2 board manufacturing method, it is characterized in that described each step punching press is in proper order: a-b-c1-c2-c3-d or a-b-c2-c1-c3-d or a-b-c1-c3-c2-d or a-c1-c2-c3-b-d or a-c2-c1-c3-b-d or a-c1-c3-c2-b-d.
4. the inferior battery stainless steel cover of lithium according to claim 1 and 2 board manufacturing method is characterized in that the impact style that is adopted is cold stamping in each step, stamping machine is 80 tons～200 tons for the punching press magnitude.
5. the inferior battery stainless steel cover of lithium according to claim 1 and 2 board manufacturing method is characterized in that the mould that each punch steps adopts is the progressive die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594092 CN102029331A (en) | 2010-12-17 | 2010-12-17 | Manufacture method for stainless steel cover plate of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594092 CN102029331A (en) | 2010-12-17 | 2010-12-17 | Manufacture method for stainless steel cover plate of lithium battery |
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| CN102029331A true CN102029331A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010594092 Pending CN102029331A (en) | 2010-12-17 | 2010-12-17 | Manufacture method for stainless steel cover plate of lithium battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094510A (en) * | 2011-11-03 | 2013-05-08 | 中山天贸电池有限公司 | Lithium ion battery with explosion-proof device and processing method thereof |
| CN104143621A (en) * | 2014-07-18 | 2014-11-12 | 安徽迅启电源科技有限公司 | Machining device for storage battery box sulfuric acid injecting port |
| CN110293197A (en) * | 2018-03-22 | 2019-10-01 | 深圳市瑞德丰精密制造有限公司 | The pier pressure method and former material and battery cover board of a kind of battery cover board |
| CN110405055A (en) * | 2019-06-18 | 2019-11-05 | 李可 | Cylindrical battery steel shell automatic stamping production line |
| CN116493486A (en) * | 2023-06-25 | 2023-07-28 | 成都宏明双新科技股份有限公司 | Forming process for inner buckle of round cap |
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| JP2000140953A (en) * | 1998-11-13 | 2000-05-23 | Fuji Hatsujo Kk | Method for press forming of sheet metal and its forming die |
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| CN1406684A (en) * | 2001-08-30 | 2003-04-02 | 上海金利制盖有限公司 | Stepped mould for manufacturing pull ring |
| CN201157867Y (en) * | 2007-12-04 | 2008-12-03 | 比亚迪股份有限公司 | Battery cover plate forming mould |
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2010
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4041746A (en) * | 1975-07-07 | 1977-08-16 | Aspro, Inc. | Method of making V-grooved sheet metal pulleys |
| US5933954A (en) * | 1997-09-15 | 1999-08-10 | Green Street, Inc. | Method for fabricating a seamless H.V.A.C. trunk line adaptor |
| JP2000140953A (en) * | 1998-11-13 | 2000-05-23 | Fuji Hatsujo Kk | Method for press forming of sheet metal and its forming die |
| JP2001185099A (en) * | 1999-12-24 | 2001-07-06 | Nec Mobile Energy Kk | Hermetic cell |
| CN1406684A (en) * | 2001-08-30 | 2003-04-02 | 上海金利制盖有限公司 | Stepped mould for manufacturing pull ring |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103094510A (en) * | 2011-11-03 | 2013-05-08 | 中山天贸电池有限公司 | Lithium ion battery with explosion-proof device and processing method thereof |
| CN104143621A (en) * | 2014-07-18 | 2014-11-12 | 安徽迅启电源科技有限公司 | Machining device for storage battery box sulfuric acid injecting port |
| CN104143621B (en) * | 2014-07-18 | 2016-10-12 | 安徽迅启电源科技有限公司 | A kind of accumulator box acid-filling mouth processing unit (plant) |
| CN110293197A (en) * | 2018-03-22 | 2019-10-01 | 深圳市瑞德丰精密制造有限公司 | The pier pressure method and former material and battery cover board of a kind of battery cover board |
| CN110405055A (en) * | 2019-06-18 | 2019-11-05 | 李可 | Cylindrical battery steel shell automatic stamping production line |
| CN116493486A (en) * | 2023-06-25 | 2023-07-28 | 成都宏明双新科技股份有限公司 | Forming process for inner buckle of round cap |
| CN116493486B (en) * | 2023-06-25 | 2023-09-22 | 成都宏明双新科技股份有限公司 | Forming process for inner buckle of round cap |
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Application publication date: 20110427 |