CN206578201U - The battery steel shell drawing die and progressive die of a kind of wall thickness reduction - Google Patents
The battery steel shell drawing die and progressive die of a kind of wall thickness reduction Download PDFInfo
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- CN206578201U CN206578201U CN201720096458.0U CN201720096458U CN206578201U CN 206578201 U CN206578201 U CN 206578201U CN 201720096458 U CN201720096458 U CN 201720096458U CN 206578201 U CN206578201 U CN 206578201U
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- cavity plate
- punching
- steel shell
- wall thickness
- battery steel
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Abstract
The utility model discloses a kind of battery steel shell drawing die of wall thickness reduction, including upper bolster and die shoe, drift is provided with below upper bolster, supporting plate and cavity plate are disposed with below drift, filler ring is fixedly installed on supporting plate, the bottom of filler ring is used to separate drift with box hat top phase top pressure, punch section is slightly larger than the stepped punch of top external diameter for bottom external diameter, the corresponding cavity plate of stepped punch is made up of the first cavity plate and the second cavity plate with punching, first cavity plate tight fit is set in the second cavity plate, the top surface of first cavity plate and the top bulge loop bottom surface phase top pressure of the second cavity plate punching, the punching top of first cavity plate and the punching of the second punch-pin are seamlessly transitted.The invention also discloses the progressive die containing the mould.By changing the middle drift adjacent with forming punching head and corresponding cavity die structure, by battery steel shell punching in the oral area side wall shape thick compared with closing side wall, cunning is more flattened out through being molded the thickness change of punching press box hat rear wall.
Description
Technical field
The utility model is related to battery steel shell production equipment technical field, and in particular to a kind of battery steel shell of wall thickness reduction
Drawing die and progressive die.
Background technology
Battery steel shell stretcher includes several drifts for being set gradually along feedstock direction, above-mentioned drift include being located at into
Expect below cutting and first stamping punch, the middle drift and the forming punching head positioned at discharge end of one end, drift in corresponding cavity plate
Punching internal diameter is unanimous between the higher and lower levels.The weight and shape of battery steel shell directly determine the number of its content.In the prior art in order to
Mitigate the weight of battery steel shell, the wall thickness of battery steel shell can be carried out next on the box hat wall thickness after reduction processing, reduction processing
Cause, the mechanical strength of box hat oral area is poor, is unfavorable for oral area sealing treatment and the safe handling of battery, there is potential safety hazard.
CN102130309A discloses a kind of manufacture method of battery so that steel shell side wall is used for locking cap close to openend
The shoulder wall thickness of cap assemblies, which is more than side wall, is used for the cylinder portion wall thickness of self-contained battery core, including box hat stretching, core winding into shell, swages
With sealing four steps.Wherein mainly comprising the following steps for box hat oral area wall thickness of increase is swaged, and concrete operations are to be more than cylinder to shoulder wall thickness
Swaged the part of portion's wall thickness so that shoulder wall thickness is located at the inner side of box hat beyond the part of cylinder portion wall thickness, so that
External diameter of the box hat in cylinder portion and shoulder is consistent.Above method step is complicated, and box hat oral area and its other party after swaging
Transition between box hat section inner surface is non-smooth shape, and the improvement to box hat mouth not intensity is not obvious.
Therefore, it is necessary to carry out structure improvement to battery steel shell drawing die of the prior art.
Utility model content
It is thinned that the purpose of this utility model is to overcome defect present in prior art to be seamlessly transitted there is provided a kind of wall thickness
Battery steel shell drawing die.
To realize above-mentioned technique effect, the technical solution of the utility model is：A kind of battery steel shell stretching of wall thickness reduction
It is provided with below mould, including upper bolster and die shoe, upper bolster below drift, drift and is disposed with supporting plate and cavity plate, its
It is characterised by, filler ring is fixedly installed on supporting plate, and the bottom of filler ring is used to separate drift, punch with box hat top phase top pressure
Section is slightly larger than the stepped punch of top external diameter for bottom external diameter, the corresponding cavity plate of stepped punch by the first cavity plate with punching and
Second cavity plate is constituted, and the first cavity plate tight fit is set in the second cavity plate, the top of the top surface of the first cavity plate and the second cavity plate punching
Bulge loop bottom surface phase top pressure is held, the punching top of the first cavity plate and the punching of the second punch-pin are seamlessly transitted.
Above-mentioned stepped punch is seamlessly transitted also by frustum side.
Wall thickness is thicker at box hat opening by the stepped punch formation of said structure, and outside reinforcement spacing convex
Convex, the inner surface of box hat is straight-tube shape, and after the last punching press of shaping together, the battery steel shell wall of outer gibbosity is stretched, and leads
Cause the wall ratio bottom end side wall of box hat oral area thick, and wall thickness change transitions smooth.
It is preferred that technical scheme be the punching top of the first cavity plate is fixedly embedded at the first stretch ring, the second cavity plate is rushed
Hole top is fixedly embedded at the second stretch ring；The internal diameter of first stretch ring is less than in the punching section being located at below the first stretch ring
Footpath；The top surface of first cavity plate and the top bulge loop lower surface of the second cavity plate punching and the bottom surface phase top pressure of the second stretch ring；First
The inner ring surface top of stretch ring is seamlessly transitted with the inner ring surface bottom of the second stretch ring.
Stepped punch stretching gained box hat wall thickness bossing transition is excessively obvious, the difficulty of road shaping stretching after increasing
Degree, in order to avoid above-mentioned phenomenon, technical scheme preferably is that the inner ring surface top outline of the first stretch ring is back taper mesa-shaped,
The inner ring surface top of first stretch ring is not more than 30 ° with acute angle folded by vertical direction.
Drift and box hat are separated for the ease of filler ring, technical scheme preferably is, outside the inner ring surface top of the second stretch ring
Profile is back taper mesa-shaped.
For the ease of the assembling of the first cavity plate and the second cavity plate, technical scheme preferably is that the bottom of the first cavity plate is set
There is the peripheral flange of outer gibbosity, the punching bottom of the second cavity plate is stepped, stepped bottom punching and the circumference of the first cavity plate
Flange tight fit.
Another object of the present utility model also resides in the battery steel shell drawing progressive die for providing a kind of wall thickness reduction, its feature
It is, including cutting diel, middle drawing die and the mould set gradually side by side along feedstock direction, centre stretching
The battery steel shell drawing die of an above-mentioned wall thickness reduction, battery steel shell drawing die and the shaping of wall thickness reduction are included in mould
Mould is disposed adjacent.
Advantage and beneficial effect of the present utility model are：
The battery steel shell drawing die structure of the wall thickness reduction is simple, by changing the middle drift adjacent with forming punching head
With corresponding cavity die structure, by battery steel shell punching in the oral area side wall shape thick compared with closing side wall, above-mentioned box hat is passed through
Cross wall thickness change after the mould punching press of battery steel shell drawing progressive die and more flatten out cunning.
Brief description of the drawings
Fig. 1 is the structural representation of battery steel shell drawing die in the utility model embodiment 1；
Fig. 2 is the structural representation of embodiment 2；
Fig. 3 is the structural representation of battery steel shell drawing progressive die in embodiment 2.
In figure：1st, upper bolster；2nd, die shoe；3rd, drift；4th, supporting plate；5th, cavity plate；51st, the first cavity plate；52nd, the second cavity plate；
6th, the first stretch ring；7th, the second stretch ring；8th, diel is cut；9th, middle drawing die；10th, mould；11st, filler ring.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and protection model of the present utility model can not be limited with this
Enclose.
Embodiment 1
As shown in figure 1, the battery steel shell drawing die of the wall thickness reduction of embodiment 1, including upper bolster 1 and die shoe 2, on
The lower section of die holder 1 is provided with drift 3, and the lower section of drift 3, which is disposed with supporting plate 4 and cavity plate 5, supporting plate 4, is fixedly installed filler ring 11,
The bottom of filler ring 11 is used to separate drift 3 with box hat top phase top pressure, and the punch section of drift 3 is that bottom external diameter is slightly larger than top external diameter
Stepped punch, the corresponding cavity plate 5 of stepped punch is made up of the first cavity plate 51 and the second cavity plate 52 with punching, the first cavity plate
51 tight fits are set in the second cavity plate 52, the top surface of the first cavity plate 51 and the top bulge loop bottom surface Xiang Ding of the punching of the second cavity plate 52
Pressure, the punching top of the first cavity plate 51 and the punching of the second punch-pin 52 are seamlessly transitted.
The punching top outline of first cavity plate 51 and the second cavity plate 52 is back taper mesa-shaped.
The bottom of first cavity plate 51 is provided with the peripheral flange of outer gibbosity, the punching bottom of the second cavity plate 52 be it is stepped,
Stepped bottom punching and the peripheral flange tight fit of the first cavity plate 51.
Embodiment 2
As shown in Figures 2 and 3, the difference of embodiment 2 and embodiment 1 is, the punching top of the first cavity plate 51, which is fixed, to be embedded
There is the first stretch ring 6, the punching top of the second cavity plate 52 is fixedly embedded at the second stretch ring 7；The internal diameter of first stretch ring 6 is less than
Punching section internal diameter positioned at the lower section of the first stretch ring 6；Under the top surface of first cavity plate 51 and the top bulge loop of the punching of the second cavity plate 52
Surface and the bottom surface phase top pressure of the second stretch ring 7；The inner ring surface top of first stretch ring 6 and the inner ring surface bottom of the second stretch ring 7
End is seamlessly transitted.
The inner ring surface top outline of first stretch ring 6 is back taper mesa-shaped, the inner ring surface top of the first stretch ring 6 with it is vertical
Acute angle folded by direction is not more than 30 °.
The inner ring surface top outline of second stretch ring 7 is back taper mesa-shaped.
The battery steel shell drawing progressive die of wall thickness reduction includes the cutting set gradually side by side along feedstock direction in embodiment 2
The battery of an above-mentioned wall thickness reduction is included in diel 8, middle drawing die 9 and mould 10, middle drawing die 9
Box hat drawing die, the battery steel shell drawing die of wall thickness reduction is disposed adjacent with mould 10.
During work, steel band is placed in below cutting diel, steel band cutting and first time punching press are completed, in then passing through
Between drawing die stretching step by step and the punching press of wall thickness reduction drawing die, form the inconsistent battery steel of preliminary upper lower wall thickness
Shell blank, then through mould punching press, the battery steel shell that wall thickness is seamlessly transitted is obtained, the openend wall thickness of battery steel shell is thick.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (6)
1. drift is provided with below a kind of battery steel shell drawing die of wall thickness reduction, including upper bolster and die shoe, upper bolster,
Supporting plate and cavity plate are disposed with below drift, it is characterised in that be fixedly installed filler ring on supporting plate, the bottom of filler ring be used for
Box hat top phase top pressure separation drift, punch section is slightly larger than the stepped punch of top external diameter, stepped punch for bottom external diameter
Corresponding cavity plate is made up of the first cavity plate and the second cavity plate with punching, and the first cavity plate tight fit is set in the second cavity plate,
The top surface of first cavity plate and the top bulge loop bottom surface phase top pressure of the second cavity plate punching, punching top and the second punch-pin of the first cavity plate
Punching seamlessly transit.
2. the battery steel shell drawing die of wall thickness reduction according to claim 1, it is characterised in that the punching of the first cavity plate
Top is fixedly embedded at the first stretch ring, and the punching top of the second cavity plate is fixedly embedded at the second stretch ring；First stretch ring
Internal diameter is less than the punching section internal diameter being located at below the first stretch ring；The top surface of first cavity plate and the top bulge loop of the second cavity plate punching
The bottom surface phase top pressure of lower surface and the second stretch ring；The inner ring surface top of first stretch ring and the inner ring surface bottom of the second stretch ring
Seamlessly transit.
3. the battery steel shell drawing die of wall thickness reduction according to claim 2, it is characterised in that the first stretch ring it is interior
Anchor ring top outline is back taper mesa-shaped, and inner ring surface top and the acute angle folded by vertical direction of the first stretch ring are not more than 30 °.
4. the battery steel shell drawing die of wall thickness reduction according to claim 3, it is characterised in that the second stretch ring it is interior
Anchor ring top outline is back taper mesa-shaped.
5. the battery steel shell drawing die of wall thickness reduction according to claim 1, it is characterised in that the bottom of the first cavity plate
The peripheral flange of outer gibbosity is provided with, the punching bottom of the second cavity plate is stepped, stepped bottom punching and the first cavity plate
Peripheral flange tight fit.
6. the battery steel shell drawing progressive die of a kind of wall thickness reduction, it is characterised in that including being set gradually side by side along feedstock direction
Cutting diel, middle drawing die and mould, include in middle drawing die any in a claim 1 to 5
The battery steel shell drawing die that thickness described in one is thinned, the battery steel shell drawing die of wall thickness reduction is adjacent with mould to be set
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096458.0U CN206578201U (en) | 2017-01-25 | 2017-01-25 | The battery steel shell drawing die and progressive die of a kind of wall thickness reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720096458.0U CN206578201U (en) | 2017-01-25 | 2017-01-25 | The battery steel shell drawing die and progressive die of a kind of wall thickness reduction |
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| CN206578201U true CN206578201U (en) | 2017-10-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523844A (en) * | 2019-09-05 | 2019-12-03 | 成都宏明双新科技股份有限公司 | A kind of progressive die process for stamping of tubulose thin-walled parts |
| CN113500140A (en) * | 2021-07-09 | 2021-10-15 | 常州范斯特汽车部件有限公司 | Progressive forming die for power battery shell |
| CN114993530A (en) * | 2022-04-21 | 2022-09-02 | 广东翔鹭钨业股份有限公司 | Detection equipment for pressing pressure of hard alloy glue-doped mixture and use method thereof |
| CN116786674A (en) * | 2023-08-25 | 2023-09-22 | 常州松田伺服冲床有限公司 | Full-automatic battery box stretching punch press and battery box stretching method |
-
2017
- 2017-01-25 CN CN201720096458.0U patent/CN206578201U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523844A (en) * | 2019-09-05 | 2019-12-03 | 成都宏明双新科技股份有限公司 | A kind of progressive die process for stamping of tubulose thin-walled parts |
| CN113500140A (en) * | 2021-07-09 | 2021-10-15 | 常州范斯特汽车部件有限公司 | Progressive forming die for power battery shell |
| CN113500140B (en) * | 2021-07-09 | 2024-04-02 | 常州震裕汽车部件有限公司 | Progressive forming die for power battery shell |
| CN114993530A (en) * | 2022-04-21 | 2022-09-02 | 广东翔鹭钨业股份有限公司 | Detection equipment for pressing pressure of hard alloy glue-doped mixture and use method thereof |
| CN116786674A (en) * | 2023-08-25 | 2023-09-22 | 常州松田伺服冲床有限公司 | Full-automatic battery box stretching punch press and battery box stretching method |
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