CN208555678U - A kind of cast structure of the drawing die blank holder of aluminium sheet material part - Google Patents
A kind of cast structure of the drawing die blank holder of aluminium sheet material part Download PDFInfo
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- CN208555678U CN208555678U CN201820906097.6U CN201820906097U CN208555678U CN 208555678 U CN208555678 U CN 208555678U CN 201820906097 U CN201820906097 U CN 201820906097U CN 208555678 U CN208555678 U CN 208555678U
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- blank holder
- mandril
- leg
- drawing die
- sheet material
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Abstract
The utility model relates to a kind of cast structures of the drawing die blank holder of aluminium sheet material part, the drawing die blank holder includes holding pad ontology and mandril leg, muscle is equipped in the blank holder ontology, the mandril leg is fixed at the multiple body bottom portions of holding pad, the section of the mandril leg be include a circle or semicircle central part and the protrusion of two bar shapeds.Compared with prior art, the utility model can improve blank holder Production Practice of Casting Technologies, reduce casting flaw and accumulate at mandril leg central part position；Enhance the intensity of blank holder entirety, guarantees the stability during producing and using.
Description
Technical field
The utility model relates to drawing technology fields, and in particular to a kind of drawing die blank holder of aluminium sheet material part
Cast structure.
Background technique
As automobile uses the plate material smaller than steel density to light-weighted demand for development, many coverings and structural member.
Aluminium sheet material is in punching press drawing processing, and by complicated pressure, the repeatable accuracy of blank holder can occur small drawing die
Variation, when variation reaches a certain level, causes final products dimension overproof.If producing the drawing die of aluminium sheet material parts
Blank holder, using the cast structure of traditional mode of production steel plate materials part, it is difficult to guarantee the dimension precision requirement of product.How to guarantee
The blank holder of drawing die repeatable accuracy stable during production and application, to meet the requirement of aluminum alloy materials production, at
For the key solved the problems, such as.
Utility model content
The purpose of this utility model is exactly to provide a kind of stability more to overcome the problems of the above-mentioned prior art
The cast structure of the drawing die blank holder of high aluminium sheet material part.
The purpose of this utility model can be achieved through the following technical solutions: a kind of drawing die of aluminium sheet material part
The cast structure of blank holder, the drawing die blank holder include holding pad ontology and mandril leg, are equipped in the blank holder ontology
Muscle, the mandril leg are fixed at the multiple body bottom portions of holding pad, the section of the mandril leg be include a circle or half
Circular central portion and the protrusion of two bar shapeds.
The utility model optimizes the shape in the mandril legs break face of existing drawing die blank holder, by existing circle
The mandril leg of cylindricality or semi- cylindrical section adds two strip bulges, enhances the support strength of mandril leg, also provides enhanced pressure
Flange intensity improves blank holder and keeps high metastable repeatable accuracy in production and application, and then realizes aluminum alloy materials
Part batch steady production.
The mandril leg is L-shaped, including a circular central portion and two orthogonal strip bulges, the item
Shape protrusion includes two parallel sides and semicircle top, wherein a side and circular central portion edge are tangent, another
Side and circular central portion edge-perpendicular.
The radius R1 of the circular central portion is 50~65mm, and the radius r1 on semicircle top is 20~35mm, with circle
The length L1 of the tangent side in central part edge is 80~120mm.
The mandril leg is fixed on the bottom of a piece linear muscle of holding pad.
The mandril leg is in convex shape, including semicircle central part and setting in semicircle central part side and to two
The strip bulge extended is held, the strip bulge includes rectangular end and semi-circular end.
The radius R2 of the semicircle central part is 50~65mm, and the radius r2 of semi-circular end is 20~35mm, rectangle
The length L2 at end is 60~75mm.
The mandril leg is fixed on the bottom of two muscle staggered places of holding pad.
Compared with prior art, the beneficial effects of the utility model are embodied in: being improved blank holder Production Practice of Casting Technologies, reduced
Casting flaw accumulates at mandril leg central part position；Enhance the intensity of blank holder entirety, guarantees during producing and using
Stability.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the schematic cross-sectional view of A-A in Fig. 1；
Fig. 3 is the schematic cross-section of the portion B mandril leg in Fig. 2；
Fig. 4 is the schematic cross-section of the portion C mandril leg in Fig. 2.
Wherein, 1 is blank holder ontology, and 11 be muscle, and 2 be mandril leg, and 21 be circular central portion, and 22 be semicircle top, 23
It is rectangular end for semicircle central part, 24,25 be semi-circular end.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
A kind of cast structure of the drawing die blank holder of aluminium sheet material part mainly includes pressure plate loop ontology 1 and mandril
2 two parts of leg, as shown in Figure 1, mandril leg 2 is divided into a type section mandril leg and b type section mandril leg by cross sectional shape difference.Its
In, a type section mandril leg is as shown in figure 3, include a circular central portion 21 and two orthogonal strip bulges, bar shaped
Protrusion includes two parallel sides and semicircle top 22, wherein a side and 21 edge of circular central portion are tangent, it is another
Side and 21 edge-perpendicular of circular central portion.The radius R1 of circular central portion is 50~65mm, the radius r1 on semicircle top
For 20~35mm, the length L1 of tangent side is 80~120mm with circular central portion edge, and specific value can be according to mold need
It asks and is adjusted.The a type section mandril leg is fixed on the bottom of holding pad ontology 1 one linear muscle 11, as shown in Figure 2.
The structure of Type B section mandril leg is as shown in figure 4, include semicircle central part 23 and setting in semicircle central part
23 sides and the strip bulge extended to both ends, strip bulge includes rectangular end 24 and semi-circular end 25.Semicircle central part 23
Radius R2 be 50~65mm, the radius r2 of semi-circular end 25 is 20~35mm, and the length L2 of rectangular end 24 is 60~75mm,
Specific value can be adjusted according to mold demand.The b type section mandril leg is fixed on the bottom of two muscle staggered places of holding pad,
As shown in Figure 2.
The central part of above two mandril leg is stress area in production process, the join domain of strip bulge and central part
It is combined with muscle 11 traditional on blank holder ontology 1, to utilize the flanging of the utility model cast structure in punching production
Circle, mold repeatable accuracy meet requirement, and mold repair rate is low, realize that aluminium sheet material part stably produces.
Claims (7)
1. a kind of cast structure of the drawing die blank holder of aluminium sheet material part, which includes holding pad sheet
Body and mandril leg, the blank holder ontology is interior to be equipped with muscle, which is characterized in that the mandril leg is fixed at holding pad multiple
Body bottom, the section of the mandril leg be include a circle or semicircle central part and the protrusion of two bar shapeds.
2. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 1, feature exist
In, the mandril leg is L-shaped, including a circular central portion and two orthogonal strip bulges, the bar shaped it is convex
It rises including two parallel sides and semicircle top, wherein a side and circular central portion edge are tangent, another side
With circular central portion edge-perpendicular.
3. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 2, feature exist
In the radius R1 of the circular central portion is 50~65mm, and the radius r1 on semicircle top is 20~35mm, with circular central portion
The length L1 of the tangent side in edge is 80~120mm.
4. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 2 or 3, feature
It is, the mandril leg is fixed on the bottom of a piece linear muscle of holding pad.
5. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 1, feature exist
In the mandril leg is in convex shape, including semicircle central part and setting are prolonged in semicircle central part side and to both ends
The strip bulge stretched, the strip bulge include rectangular end and semi-circular end.
6. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 5, feature exist
In the radius R2 of the semicircle central part is 50~65mm, and the radius r2 of semi-circular end is 20~35mm, the length of rectangular end
Degree L2 is 60~75mm.
7. a kind of cast structure of the drawing die blank holder of aluminium sheet material part according to claim 5 or 6, feature
It is, the mandril leg is fixed on the bottom of two muscle staggered places of holding pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906097.6U CN208555678U (en) | 2018-06-12 | 2018-06-12 | A kind of cast structure of the drawing die blank holder of aluminium sheet material part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820906097.6U CN208555678U (en) | 2018-06-12 | 2018-06-12 | A kind of cast structure of the drawing die blank holder of aluminium sheet material part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208555678U true CN208555678U (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820906097.6U Active CN208555678U (en) | 2018-06-12 | 2018-06-12 | A kind of cast structure of the drawing die blank holder of aluminium sheet material part |
Country Status (1)
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| CN (1) | CN208555678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560498A (en) * | 2021-07-12 | 2021-10-29 | 芜湖泓鹄材料技术有限公司 | Casting process of side wall blank holder of automobile stamping die |
-
2018
- 2018-06-12 CN CN201820906097.6U patent/CN208555678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560498A (en) * | 2021-07-12 | 2021-10-29 | 芜湖泓鹄材料技术有限公司 | Casting process of side wall blank holder of automobile stamping die |
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| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200730 Granted publication date: 20190301 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230730 Granted publication date: 20190301 |