CN101704050B - Process for stamping thin-wall battery case by using joggle die and joggle die - Google Patents
Process for stamping thin-wall battery case by using joggle die and joggle die Download PDFInfo
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- CN101704050B CN101704050B CN200910180049A CN200910180049A CN101704050B CN 101704050 B CN101704050 B CN 101704050B CN 200910180049 A CN200910180049 A CN 200910180049A CN 200910180049 A CN200910180049 A CN 200910180049A CN 101704050 B CN101704050 B CN 101704050B
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- die
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- joggle
- battery case
- cavity
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Abstract
The invention discloses a process for stamping a thin-wall battery case by using a joggle die. The adopted joggle die comprises a joggle upper female die, a joggle lower female die and a stamp stem, wherein the joggle upper female die and the joggle lower female die have joint surfaces which are the lower surface of the joggle upper female die and the upper surface of the joggle lower female die; concentric spherical die cavities for stamping are arranged on the joggle upper female die and the joggle lower female die at corresponding positions; the aperture of the spherical cavity of the joggle upper female die is a little bit larger than that of the spherical cavity of the joggle lower female die; the spherical cavity of the joggle upper female die is used for fixing a blank material of the battery case; the spherical cavity of the joggle lower female die is used for supporting the blank material and cooperating with the stamp stem in forming the battery case; the stamp stem stamping the blank material into the spherical cavities; the outside diameter of the stamp stem is smaller than the apertures of the spherical cavities; and the distance from the outside diameter of the stamp stem to the spherical cavity of the joggle lower female die is the thickness of the battery case to be formed. The joggle die designed in the invention can stamp battery cases and various structures of the battery cases, particularly thin-wall battery cases.
Description
Technical field
The present invention relates to a kind of production technology of battery case, a kind of specifically technology that adopts Production of Stamping Die thin wall battery shell.
Background technology
Traditional die casting comprises common pattern, forging die and mould such as extrusion die, withdrawing pattern etc. that some are special.The present invention has designed a kind of novel stepped diel.
The wall thickness of the battery case that mould commonly used is produced is bigger, is generally the uniform battery case of wall thickness.But through discovering, the opening part of battery case needs inside flanging, and is general bigger to the requirement of strength of structure, and most of housing of battery case does not bear other structural stress except the tension force that bears battery material.So be the thinner structure of wall thickness that can the wall thickness design of the housing parts of battery case be become the ratio open place, under the condition of the structural strength that guarantees opening part, can satisfy the use needs of battery case in the process of producing.And meanwhile, if having reduced wall thickness also can save and produce the needed consumptive material of battery case, and relative increase the internal capacity of battery case, increased the electric weight of battery.
Summary of the invention
The technology that the purpose of this invention is to provide a kind of ladder die punched thin-wall battery case adopts novel impact style moulding battery case.
The objective of the invention is to realize through following technical scheme:
A kind of technology of ladder die punched thin-wall battery case; Blank is cut into circular blank, blank is installed on the ladder die, form the shell external diameter and the bottom internal diameter of battery case through the ladder die punching press; And then be installed on another group ladder die; Organize ladder die top internal diameter of punching press formation battery case once more through this, the top internal diameter just makes so also that less than the bottom internal diameter battery case volume inside increases relatively.
The ladder die of the punching battery case that above-mentioned technology adopted; Comprise ladder upper cavity die, ladder lower cavity die and jumper bar; Ladder upper cavity die and ladder lower cavity die have the butt joint plane; The butt joint plane is the lower surface of ladder upper cavity die and the upper surface of ladder lower cavity die, and the correspondence position of ladder upper cavity die and ladder lower cavity die is provided with concentric circular die cavity, and circular die cavity is used for punching press to be used; And the aperture of the circular die cavity of ladder upper cavity die is slightly larger than the aperture of the circular die cavity of ladder lower cavity die; The circular die cavity of ladder upper cavity die is used for fixing the blank of battery case, and the circular die cavity of ladder lower cavity die is used to support blank and cooperates jumper bar moulding battery case, and said jumper bar punching press blank gets in the circular die cavity; The external diameter of jumper bar is less than the aperture of circular die cavity, and the distance of the circular die cavity of jumper bar external diameter and ladder lower cavity die is exactly the thickness of the battery case of the moulding of wanting.
The process using joggle die of ladder die punched thin-wall battery case of the present invention; The twice pair of blank carries out punching press and forms oral area wall thickness, battery case that housing wall is thin; Such battery case structure can make the inner space of battery case increase, and has increased the capacity of battery.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the ladder upper cavity die and the ladder lower cavity die shape assumption diagram of the technology of the described ladder die punched thin-wall of embodiment of the invention battery case;
Fig. 2 is the structure chart of jumper bar of the present invention;
Fig. 3 is the structure chart of thin wall battery shell of the present invention.
Among the figure:
1, ladder upper cavity die; 2, ladder lower cavity die; 3, jumper bar; 4, circular die cavity; 6, thin wall battery shell.
The specific embodiment
As shown in Figure 3, the technology of ladder die punched thin-wall battery case 6 of the present invention is cut into circular blank with blank; Blank is installed on the ladder die; Form the shell external diameter and the bottom internal diameter of battery case through the ladder die punching press, and then be installed on another group ladder die, organize ladder die top internal diameter of punching press formation battery case 6 once more through this; The top internal diameter so also just makes battery case 6 volume inside increase relatively less than the bottom internal diameter.
As shown in Figure 1; The technology of ladder die punched thin-wall battery case of the present invention; Comprise ladder upper cavity die 1, ladder lower cavity die 2 and jumper bar 3, ladder upper cavity die 1 has the butt joint plane with ladder lower cavity die 2, and the butt joint plane is the lower surface of ladder upper cavity die and the upper surface of ladder lower cavity die; The correspondence position of ladder upper cavity die 1 and ladder lower cavity die 2 is provided with concentric circular die cavity 4; Circular die cavity 4 is used for punching press to be used, and the aperture A of the circular die cavity 4 of ladder upper cavity die 1 is slightly larger than the aperture B of the circular die cavity 4 of ladder lower cavity die 2, and the circular die cavity of ladder upper cavity die 1 is used for fixing the blank of battery case; The circular die cavity 4 of ladder lower cavity die 2 is used to support blank and cooperates jumper bar 3 moulding battery cases; Said jumper bar 3 punching press blanks get in the circular die cavity 4, and the external diameter of jumper bar 3 is less than the aperture of circular die cavity, and the distance of the circular die cavity 4 of jumper bar 3 external diameters and ladder lower cavity die is exactly the thickness of the battery case of the moulding of wanting.
As shown in Figure 2, jumper bar 3 of the present invention is cylindrical.
The joggle die of the present invention's design can be realized the punch forming to battery case 6, and can realize the multiple shaping structures of battery case, particularly can realize the moulding of thin wall battery shell 6.Compare with common used forming method, the joggle die of the present invention's design can be saved the consumptive material of battery case, and can increase the stocking space in the battery case, improves the capacity of battery.
Claims (3)
1. the method for a ladder die punched thin-wall battery case; Blank is cut into circular blank, blank is installed on the ladder die, form the shell external diameter and the bottom internal diameter of battery case through the ladder die punching press; And then be installed on another group ladder die; Organize ladder die top internal diameter of punching press formation battery case once more through this, the top internal diameter is less than the bottom internal diameter, and said ladder die comprises ladder upper cavity die, ladder lower cavity die and jumper bar; Ladder upper cavity die and ladder lower cavity die have the butt joint plane; The butt joint plane is the lower surface of ladder upper cavity die and the upper surface of ladder lower cavity die, and the correspondence position of ladder upper cavity die and ladder lower cavity die is provided with concentric circular die cavity, and the aperture of the circular die cavity of ladder upper cavity die is slightly larger than the aperture of the circular die cavity of ladder lower cavity die.
2. the method for ladder die punched thin-wall battery case according to claim 1 is characterized in that, said jumper bar punching press blank gets in the circular die cavity, and the external diameter of jumper bar is less than the aperture of circular die cavity.
3. the method for ladder die punched thin-wall battery case according to claim 2 is characterized in that, said jumper bar is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180049A CN101704050B (en) | 2009-10-26 | 2009-10-26 | Process for stamping thin-wall battery case by using joggle die and joggle die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180049A CN101704050B (en) | 2009-10-26 | 2009-10-26 | Process for stamping thin-wall battery case by using joggle die and joggle die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101704050A CN101704050A (en) | 2010-05-12 |
| CN101704050B true CN101704050B (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910180049A Active CN101704050B (en) | 2009-10-26 | 2009-10-26 | Process for stamping thin-wall battery case by using joggle die and joggle die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101704050B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983840B (en) * | 2018-01-09 | 2021-01-19 | 伟业精密科技（惠州）有限公司 | Automatic forming process of safety air bag gas generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031163U (en) * | 1988-05-18 | 1989-01-18 | 汤学智 | Dry battery without liquid leakage |
| CN2437047Y (en) * | 2000-07-09 | 2001-06-27 | 邱善鑫 | Square cell casing formation device |
| CN1406395A (en) * | 2000-12-26 | 2003-03-26 | 松下电器产业株式会社 | Square battery container, method of manufacturing the container, and square battery using the container |
| CN1432199A (en) * | 2000-05-26 | 2003-07-23 | 吉莱特公司 | Method of forming casing electrochemical cell |
-
2009
- 2009-10-26 CN CN200910180049A patent/CN101704050B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031163U (en) * | 1988-05-18 | 1989-01-18 | 汤学智 | Dry battery without liquid leakage |
| CN1432199A (en) * | 2000-05-26 | 2003-07-23 | 吉莱特公司 | Method of forming casing electrochemical cell |
| CN2437047Y (en) * | 2000-07-09 | 2001-06-27 | 邱善鑫 | Square cell casing formation device |
| CN1406395A (en) * | 2000-12-26 | 2003-03-26 | 松下电器产业株式会社 | Square battery container, method of manufacturing the container, and square battery using the container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101704050A (en) | 2010-05-12 |
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Address after: 214117 6 Wuxi Road, Xishan, Jiangsu. Patentee after: Wuxi Jinyang New Materials Co., Ltd. Address before: 214117 6 Wuxi Road, Xishan, Jiangsu. Patentee before: Wuxi City Jingyang New Type Power Supply Co., Ltd. |