CN217831451U - Novel directional drawing forming device - Google Patents
Novel directional drawing forming device Download PDFInfo
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- CN217831451U CN217831451U CN202221587450.1U CN202221587450U CN217831451U CN 217831451 U CN217831451 U CN 217831451U CN 202221587450 U CN202221587450 U CN 202221587450U CN 217831451 U CN217831451 U CN 217831451U
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Abstract
The utility model discloses a novel directional draw forming device, wherein, including upper die base, die holder, the pressure flitch that is equipped with on the upper die base between upper die base and die holder, treat the shaping product that is equipped with between upper die base and pressure flitch and die holder, and be equipped with the drawing mechanism that carries out directional drawing to treating the shaping product between upper die base and die holder to pressing between the upper die base of flitch both sides and die holder respectively. The stretching mechanism comprises a lower die insert arranged on a lower die base, and a punch matched with the lower die insert to directionally draw a product to be formed is arranged on an upper die base right above the lower die insert. The utility model discloses have the effect that improves product processingquality and save manufacturing cost.
Description
Technical Field
The utility model belongs to five metals stamping die field, in particular to be applied to neotype directional drawing forming device on flange unstability.
Background
At present, in the market, a deep drawing method for a battery pack case (as shown in fig. 1) in a new energy automobile generally adopts a die stamping forming machine to perform deep drawing on a flat sheet to obtain a basic shape of the battery pack case, and then utilizes the die stamping forming machine to perform trimming, shaping and punching processes to obtain a final product shape. The whole stamping process flow is simply as follows: drawing, trimming, shaping and punching. The specific working principle is as follows: (1) The drawing process is to punch and form a plane material sheet through a die to obtain the basic shape of the battery pack shell; (2) The trimming process is to trim redundant waste materials by stamping through a die so as to obtain a product with an accurate shape; (3) The shaping process refers to shaping the product to a product meeting the size requirement through die punch forming; (4) And in the punching process, the waste materials in the holes are trimmed and punched by using a punching die, so that the battery can shell product with the holes is obtained. In the deep drawing process, when the edge plane part (also called flange) of the battery pack shell is subjected to different internal stress due to different material inflow of each part and is higher than the rigidity of the material, instability occurs, namely the edge plane part of the battery pack shell forms a wavy surface, and the quality of a product is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a novel directional drawing forming device which can improve the processing quality of products and save the production cost.
In order to achieve the above object, the utility model provides a pair of novel directional draw forming device, wherein, including upper die base, die holder, the pressure flitch that is equipped with on the upper die base between upper die base and the die holder, treat the shaping product that is equipped with between upper die base and pressure flitch and the die holder, and be equipped with the drawing mechanism that carries out directional drawing to treating the shaping product between upper die base and the die holder respectively between the upper die base of pressure flitch both sides and the die holder.
The stretching mechanism comprises a lower die insert arranged on a lower die base, and a punch matched with the lower die insert to directionally draw a product to be formed is arranged on an upper die base right above the lower die insert. The lower die insert comprises a first square block arranged on a lower die base, and a first groove and a second groove which are sequentially arranged on the first square block; the depth of the first groove is smaller than that of the second groove. The drift includes the square piece of second that is equipped with on the upper die base, and is equipped with the first extension post and the second extension post that correspond and downwardly extending with first recess and second recess in proper order on the square piece of second. The extension length of the first extending column is less than that of the second extending column. The second extending column moves downwards and then is in matched contact with the second groove, and a product to be molded is pressed tightly; and the first extending column moves downwards and then is matched with the first groove to draw a product to be formed.
In some embodiments, the first extending column and the second extending column are respectively inserted into or separated from the first groove and the second groove along with the up-and-down movement of the upper die base.
In some embodiments, after the first extending column is inserted into the first groove, the gap between the first extending column and the first groove is equal to the thickness of the product to be molded; after the second extending column is inserted into the second groove, the gap between the second extending column and the second extending column is smaller than the thickness of the product to be molded.
In some embodiments, the first groove is an arcuate groove; the end part of the first extending column is provided with an arc-shaped convex block corresponding to the shape and size of the arc-shaped groove;
the second groove is a n-shaped groove; the end part of the second extending column is provided with a square convex block corresponding to the shape and the size of the n-shaped groove.
In some embodiments, a first guide plate is respectively arranged between both sides of the pressure plate and the upper die base; and second guide plates are respectively arranged between the upper die base and the lower die base on two sides of the product to be molded.
In some embodiments, a contoured sleeve is provided between the nip plate and the product to be formed.
In some embodiments, a nitrogen gas spring is arranged between the upper die holder and the pressure plate.
The beneficial effects of the utility model are that have the effect that improves product processingquality and save manufacturing cost. The improved stamping process is drawing, directional drawing forming, trimming and punching, and the adopted drawing mechanism eliminates the problem that the internal stress of the edge plane part (also called flange) of the battery pack shell is larger than that of the material, which is generated by drawing, so that the problem that the product cannot generate instability in the production process is fundamentally solved, and the quality of the flange is ensured. In addition, the directional drawing forming process is very effective for solving the problem of flange instability, and when similar products are developed, the processing mode can reduce the debugging times and can meet the product quality requirement in a short time; the punch structure for realizing the directional flow of the material can be well combined with the lower die insert for use, and the standard and standardized design can be realized. When the similar products are developed in the subsequent process, the product development period is shortened, and the development cost is reduced. Therefore, the effects of improving the processing quality of products and saving the production cost are realized.
Drawings
Fig. 1 is a schematic structural view of a battery pack case;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged schematic view of the stretching mechanism shown in FIG. 2;
FIG. 4 is a schematic view of the stretching mechanism shown in FIG. 2 after directional drawing and forming;
FIG. 5 is a schematic view of a first descending state of the stretching mechanism shown in FIG. 2;
fig. 6 is a schematic structural diagram of a second descending state of the stretching mechanism shown in fig. 2.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-6, a novel directional drawing forming device includes an upper die base 01, a lower die base 02, a pressure plate 03 disposed on the upper die base 01 between the upper die base 01 and the lower die base 02, a product 04 to be formed disposed between the upper die base 01 and the pressure plate 03 and the lower die base 02, and stretching mechanisms 05 for directional drawing of the product 04 to be formed between the upper die base 01 and the lower die base 02 on two sides of the pressure plate 03. The stretching mechanism 05 comprises a lower die insert 51 arranged on a lower die holder 02, and a punch 52 which is matched with the lower die insert 51 to directionally draw a product to be formed 04 is arranged on an upper die holder 01 right above the lower die insert 51. The lower mold insert 51 includes a first square block 511 provided on the lower mold base 02, and a first recess 512 and a second recess 513 provided on the first square block 511 in sequence. The depth of the first grooves 512 is smaller than the depth of the second grooves 513. The punch 52 comprises a second square block 521 arranged on the upper die holder 01, and a first extending column 522 and a second extending column 523 which correspond to the first groove 512 and the second groove 513 and extend downwards are sequentially arranged on the second square block 521. The first extending column 522 extends for a length less than the second extending column 523. The second extending column 523 moves downward to be in contact with the second groove 513 in a matched manner, and compresses the product 04 to be molded. The first extending column 522 moves downwards and then cooperates with the first groove 512 to draw the product to be formed 04. The first extension column 522 and the second extension column 523 are respectively inserted into or separated from the first groove 512 and the second groove 513 along with the up-and-down movement of the upper die holder 01. After the first extending column 522 is inserted into the first groove 512, the gap between the two is equal to the thickness of the product 04 to be molded. After the second extending column 523 is inserted into the second groove 513, the gap between the two is smaller than the thickness of the product 04 to be molded. The first groove 512 is an arc-shaped groove. The end of the first extending column 522 is provided as an arc-shaped projection corresponding to the shape and size of the arc-shaped groove. The second recess 513 is a n-shaped recess. The end of the second extension column 523 is provided as a square projection corresponding to the shape and size of the n-shaped groove. First guide plates 06 are respectively arranged between two sides of the pressure plate 03 and the upper die holder 01; and second guide plates 07 are respectively arranged between the upper die base 01 and the lower die base 02 at two sides of the product 04 to be molded. And an equal-height sleeve 08 is arranged between the material pressing plate 03 and the product 04 to be molded. A nitrogen spring 09 is arranged between the upper die holder 01 and the pressure plate 03.
In order to enable the material to flow directionally, the directional drawing forming processing is realized; the forming punch 52 requires structure for regional material locking and for controlling material flow.
The specific principle is as follows: a material pressing plate 03 is adopted to firstly press the product 04 to be formed downwards, so that the product 04 to be formed is prevented from moving; the area a below the punch 52 is a flow control material flow portion, and the clearance with the lower die insert 51 is equal to the thickness of the product. The B region below the punch 52 is a lock region material portion, and the clearance with the lower die insert 51 is smaller than the material thickness of the product. Wherein the position of the lowermost a point of the first groove 512 is higher than the position of the lowermost b point of the second groove 513. In the forming process, the second extending column 523 on the punch 52 contacts with the lower die insert 51 firstly, and the gap between the second extending column 523 and the lower die insert 51 is smaller than the material thickness of the product 04 to be formed, so that the edge plane part of the product 04 to be formed can be locked; after the punch 52 is pressed down, the first extending column 522 of the punch 52 contacts the edge plane part of the product 04 to be formed and pulls the edge plane part from inside to outside, so that the directional flow of the material is realized, and the directional drawing forming process is realized.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all fall within the scope of the invention.
Claims (7)
1. A novel directional drawing forming device is characterized by comprising an upper die holder, a lower die holder, a pressure plate arranged on the upper die holder between the upper die holder and the lower die holder, products to be formed arranged between the upper die holder and the pressure plate as well as between the pressure plate and the lower die holder, and stretching mechanisms for directionally drawing the products to be formed between the upper die holder and the lower die holder and between the upper die holder and the lower die holder on two sides of the pressure plate;
the stretching mechanism comprises a lower die insert arranged on a lower die base, and a punch head which is matched with the lower die insert to carry out directional drawing on a product to be formed is arranged on the upper die base right above the lower die insert;
the lower die insert comprises a first square block arranged on a lower die base, and a first groove and a second groove which are sequentially arranged on the first square block; the depth of the first groove is smaller than that of the second groove;
the punch comprises a second square block arranged on the upper die base, and a first extending column and a second extending column which correspond to the first groove and the second groove and extend downwards are sequentially arranged on the second square block;
the extending length of the first extending column is less than that of the second extending column;
the second extending column moves downwards and then is in matched contact with the second groove, and a product to be molded is pressed tightly; the first extending column moves downwards and then is matched with the first groove to draw a product to be formed.
2. The novel directional drawing forming device as claimed in claim 1, wherein the first extending column and the second extending column are inserted into or separated from the first groove and the second groove respectively along with the up-and-down movement of the upper die base.
3. The novel directional drawing forming device as claimed in claim 2, wherein after the first extending column is inserted into the first groove, the gap between the first extending column and the first groove is equal to the thickness of a product to be formed; after the second extension column is inserted into the second groove, the gap between the second extension column and the second groove is smaller than the thickness of the product to be molded.
4. A novel directional drawing forming device according to claim 1, 2 or 3, characterized in that the first groove is an arc-shaped groove; the end part of the first extending column is provided with an arc-shaped convex block corresponding to the shape and size of the arc-shaped groove;
the second groove is a n-shaped groove; the end part of the second extending column is provided with a square bump corresponding to the shape and the size of the n-shaped groove.
5. The novel directional drawing forming device according to claim 1, wherein first guide plates are respectively arranged between two sides of the pressure plate and the upper die base; and second guide plates are respectively arranged between the upper die base and the lower die base on two sides of the product to be molded.
6. The novel directional drawing forming device as claimed in claim 1, wherein a contour sleeve is arranged between the material pressing plate and a product to be formed.
7. The novel directional drawing forming device as claimed in claim 1, wherein a nitrogen gas spring is arranged between the upper die base and the pressure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221587450.1U CN217831451U (en) | 2022-06-22 | 2022-06-22 | Novel directional drawing forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221587450.1U CN217831451U (en) | 2022-06-22 | 2022-06-22 | Novel directional drawing forming device |
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| Publication Number | Publication Date |
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| CN217831451U true CN217831451U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221587450.1U Active CN217831451U (en) | 2022-06-22 | 2022-06-22 | Novel directional drawing forming device |
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| CN (1) | CN217831451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117753860A (en) * | 2023-12-21 | 2024-03-26 | 镇江先锋汽车零部件有限公司 | Directional flow stretching method for shell product material |
-
2022
- 2022-06-22 CN CN202221587450.1U patent/CN217831451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117753860A (en) * | 2023-12-21 | 2024-03-26 | 镇江先锋汽车零部件有限公司 | Directional flow stretching method for shell product material |
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