CN209094341U - A kind of improvement structure of column-shaped battery case cupping tool - Google Patents
A kind of improvement structure of column-shaped battery case cupping tool Download PDFInfo
- Publication number
- CN209094341U CN209094341U CN201821575187.8U CN201821575187U CN209094341U CN 209094341 U CN209094341 U CN 209094341U CN 201821575187 U CN201821575187 U CN 201821575187U CN 209094341 U CN209094341 U CN 209094341U
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- CN
- China
- Prior art keywords
- lower die
- steel shell
- column
- battery case
- cupping tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a kind of improvement structures of column-shaped battery case cupping tool, it includes drawing lower die；The bottom of the drawing lower die is provided with Le bed die；The internal diameter for strangling bed die is less than the internal diameter of drawing lower die.A kind of improvement structure of the column-shaped battery case cupping tool of the utility model, in battery steel shell drawing, increase in the bottom of the lower die of cupping tool and strangles bottom, the bottom outer diameter of battery steel shell is strangled small, keep battery steel shell bottom outer diameter and intermediate outer almost the same, make battery steel shell when cutting waste material, the die size for cutting waste material can be designed by standard, cut out rear oral area and counted flange in also held in required size.
Description
Technical field
The utility model relates to column-shaped battery case stamped fields, more particularly to a kind of column-shaped battery case drawing
The improvement structure of mold.
Background technique
With the lasting heating of new energy field, the producer for producing battery steel shell in recent years gradually increases, matched
Mould factory is also more and more, under forming principle almost much the same situation, how to improve mould and die accuracy, promotes the use of mold
Service life enables mold preferably to be received by user, allows user to experience easy to use, easy to maintenance, and then promotes mould factory
Competitiveness, one of the problem for being paid more attention at mold designers, and emphasis being needed to capture.
In the mold for actually using multiple commercial vendors manufacture, and found after understanding its mould structure deeply, because of technological reason,
Battery case bottom outer diameter after drawing is bigger than middle part outer diameter, after this results in mold finally to cut waste material together, the oral area of product
Outer diameter is bigger than normal, and the rear processing procedure that oral area outer diameter can usually make battery has an impact.
Steel shell of cylindrical cell as shown in Figure 2, because of the limitation of deep-drawing technique, practical steel shell at the time of molding, steel shell bottom
The outer diameter in portion can be more bigger than middle part, and oral area often has size requirement, and finish dimensional is no more than 18.30mm (containing flange)；
And finished size after the complete plating of steel shell punching press, such as deduct 0.015-0.02mm thickness of coating, then before unplated after punching press, oral area
Outer diameter is no more than 18.28mm；Internal diameter will accomplish 17.81mm, wall thickness 0.22mm, then can calculate the theoretical overall diameter etc. of steel shell
In 18.71+0.22+0.22=18.25mm, in addition the molding unilateral gap 0.01mm of upper/lower die, actual bottom overall diameter
About in 18.25+0.01+0.01=18.27mm；Middle part can be smaller, about in 18.25mm；All moldings of steel shell are complete at this time
At only waste material is cut in surplus final step；However when cutting waste material, when upper mold jumper bar and lower die mold, it will be clipped between upper/lower die
Product oral area waste material excision, but cut off after oral area finish dimensional can be kept bigger there are flange, and flange be technique on can not keep away
The phenomenon that exempting from, is that steel shell bottom is introduced into lower die an actor's rendering of an operatic tune when the reason is that cutting waste material, therefore in order to can smoothly enter into down steel shell
Mould, can be there are the gap about 0.01mm on mold when cutting waste material, and steel shell bottom outer diameter has been 18.27mm at this time, and lower die will
Accomplish 18.28mm, cutting out rear oral area and counting flange in just can easily exceed 18.28mm, add thickness of coating, oral area outer diameter is just
It can be more than 18.30mm；This does not just meet size requirement.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of improvement knot of column-shaped battery case cupping tool
Structure increases in the bottom of the lower die of cupping tool in battery steel shell drawing and strangles bottom, and the bottom outer diameter Le of battery steel shell is small,
Keep battery steel shell bottom outer diameter and intermediate outer almost the same, make battery steel shell when cutting waste material, cuts the mold ruler of waste material
It is very little to be designed by standard, it cuts out rear oral area and counts flange in also held in required size.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of column-shaped battery case cupping tool
Structure is improved, it includes drawing lower die；The bottom of the drawing lower die is provided with Le bed die；The internal diameter for strangling bed die, which is less than, to be drawn
The internal diameter of deep lower die.
The internal diameter of the drawing lower die and the difference for strangling the internal diameter of bed die are the two of the molding unilateral gap value of upper/lower die
Times.
After drawing, the size of product bottom is consistent with the size in the middle part of product.
The utility model has the beneficial effects that a kind of improvement structure of column-shaped battery case cupping tool of the utility model,
In battery steel shell drawing, increases in the bottom of the lower die of cupping tool and strangle bottom, the bottom outer diameter Le of battery steel shell is small, make electricity
Pond steel shell bottom outer diameter and intermediate outer are almost the same, make battery steel shell when cutting waste material, and the die size for cutting waste material can
It is designed by standard, cuts out rear oral area and count flange in also held in required size.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the improvement structure of column-shaped battery case cupping tool of embodiment；
Fig. 2 is by the schematic diagram of the dimension data of column-shaped battery case enumerated in background technique.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment
As shown in Figure 1, a kind of improvement structure of column-shaped battery case cupping tool of the present embodiment, it includes drawing lower die
1；The bottom of the drawing lower die 1, which is provided with, strangles bed die 2；The internal diameter for strangling bed die 2 is less than the internal diameter of drawing lower die 1；It is described
The difference of the internal diameter of the internal diameter and Le bed die 2 of drawing lower die 1 is twice of the molding unilateral gap value of upper/lower die；Through drawing
Afterwards, the size of product bottom is consistent with the size in the middle part of product.
The improvement structure of a kind of column-shaped battery case cupping tool of the present embodiment, in the cylinder being applied in background technique
It can be the left side 18.25mm as outer diameter by the bottom outer diameter control of battery steel shell in deep-drawing technique when in shape battery steel shell
The right side, in this way, in subsequent excision, cutting the lower die of useless mold, there are the gaps of about 0.01mm, since steel shell bottom outer diameter is accomplished
18.25mm, lower die only need to accomplish 18.26mm, and the steel shell oral area cut out in this way, which counts flange in, to be more than
18.28mm, then count thickness of coating in and be not more than 18.30mm, fully meet the demand in size.
The improvement structure of a kind of column-shaped battery case cupping tool of the present embodiment, in battery steel shell drawing, in drawing
The bottom of the lower die of mold, which increases, strangles bottom, and the bottom outer diameter Le of battery steel shell is small, makes outside battery steel shell bottom outer diameter and centre
Diameter is almost the same, makes battery steel shell when cutting waste material, and the die size for cutting waste material can be designed by standard, cuts out rear oral area
Flange is counted in also held in required size.
It should be noted that the number and text on Fig. 2 are the indispensable important instructions for supporting background technical description；
The size of battery steel shell in background technique, a citing in only numerous battery steel shells, whatsoever the battery steel of size
Shell can all encounter the problems in background technique using deep-drawing technique and waste material excision technique, and the application can be solved similar to this
The identical problem of battery steel shell encountered, size should not limit the protection scope of the application.
Above-described embodiment should not in any way limit the utility model, all by the way of equivalent replacement or equivalency transform
The technical solution of acquisition is all fallen in the protection scope of the utility model.
Claims (2)
1. a kind of improvement structure of column-shaped battery case cupping tool, it is characterised in that: it includes drawing lower die；Under the drawing
The bottom of mould is provided with Le bed die；The internal diameter for strangling bed die is less than the internal diameter of drawing lower die.
2. a kind of improvement structure of column-shaped battery case cupping tool according to claim 1, it is characterised in that: the drawing
The difference of the internal diameter of the internal diameter and Le bed die of deep lower die is twice of the molding unilateral gap value of upper/lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575187.8U CN209094341U (en) | 2018-09-26 | 2018-09-26 | A kind of improvement structure of column-shaped battery case cupping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821575187.8U CN209094341U (en) | 2018-09-26 | 2018-09-26 | A kind of improvement structure of column-shaped battery case cupping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209094341U true CN209094341U (en) | 2019-07-12 |
Family
ID=67153599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821575187.8U Expired - Fee Related CN209094341U (en) | 2018-09-26 | 2018-09-26 | A kind of improvement structure of column-shaped battery case cupping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209094341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700404A (en) * | 2022-03-29 | 2022-07-05 | 洛阳新塑成实业有限公司 | Punch forming device and punch forming method for VDA module battery shell |
-
2018
- 2018-09-26 CN CN201821575187.8U patent/CN209094341U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700404A (en) * | 2022-03-29 | 2022-07-05 | 洛阳新塑成实业有限公司 | Punch forming device and punch forming method for VDA module battery shell |
| CN114700404B (en) * | 2022-03-29 | 2024-03-15 | 洛阳新塑成实业有限公司 | Stamping forming device for VDA module battery shell and stamping forming method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 |