CN218079945U - Composite die structure capable of reducing blanking force - Google Patents
Composite die structure capable of reducing blanking force Download PDFInfo
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- CN218079945U CN218079945U CN202221252122.6U CN202221252122U CN218079945U CN 218079945 U CN218079945 U CN 218079945U CN 202221252122 U CN202221252122 U CN 202221252122U CN 218079945 U CN218079945 U CN 218079945U
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Abstract
A compound die structure capable of reducing blanking force comprises an upper die base, a convex fixing plate fixed on the lower portion of the upper die base and a compound die fixed on the convex fixing plate, wherein the compound die comprises an outer diameter female die fixed on the convex fixing plate and a groove-shaped inner diameter male die fixed on the convex fixing plate and arranged in the outer diameter female die, the bottom surface of the outer diameter female die and the bottom surface of the groove-shaped inner diameter male die are both knife edge surfaces, and the knife edge surface of the outer diameter female die is higher than the knife edge surface of the groove-shaped inner diameter male die. The utility model discloses an edge of a knife face of external diameter die is higher than the design of the edge of a knife face of cell type internal diameter terrace die for during the blanking, external diameter die and cell type internal diameter terrace die form the difference in height, and the external diameter die can be washed out earlier and confirm the half-product of external diameter in process of production, and the cell type internal diameter is washed again, and the external diameter internal diameter is punching press successively, and the impact loading capacity of dispersion mould improves the plane degree of product, reduces the product concave surface, has improved the product yield.
Description
Technical Field
The utility model relates to a reduce compound die mould structure of blanking power.
Background
In the motor industry, a stator core and a rotor core are one of important parts on a motor, and the quality of the stator core and the rotor core directly influences the technical performance of the motor. With the rapid development of high-speed stamping technology, in the fields of motors, electric appliances and the like, high-speed stamping multi-station progressive dies are widely adopted to manufacture automatic laminated structural iron cores.
In the prior art, when a stator iron chip product is punched, the knife edge surfaces of the groove-shaped inner-diameter male die and the outer-diameter female die are positioned on the same horizontal plane, and when a material belt is punched, the punching force is concentrated, so that the product is sunken, the flatness of the product is insufficient, and the yield of the product is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a compound die mould structure that reduces blanking power.
In order to solve the technical problem, the utility model discloses a technical scheme is: a compound die structure capable of reducing blanking force comprises an upper die base, a convex fixing plate fixed on the lower portion of the upper die base and a compound die fixed on the convex fixing plate, wherein the compound die comprises an outer diameter female die fixed on the convex fixing plate and a groove type inner diameter male die fixed on the convex fixing plate and arranged in the outer diameter female die, the bottom surface of the outer diameter female die and the bottom surface of the groove type inner diameter male die are both knife edge surfaces, and the knife edge surface of the outer diameter female die is higher than the knife edge surface of the groove type inner diameter male die. The design that the knife edge face of the outer diameter female die is higher than the knife edge face of the groove type inner diameter male die enables the outer diameter female die and the groove type inner diameter male die to form a height difference during blanking, the outer diameter female die can firstly punch an outer circle of a product in the production process and then punch the groove type inner diameter, the punching load of the die is dispersed, the flatness of the product is improved, the concave surface of the product is reduced, and the yield of the product is improved.
Preferably, the height difference between the knife edge surface of the outer diameter female die and the knife edge surface of the groove type inner diameter male die is 0.3-0.7mm.
Preferably, the groove-type inner-diameter male die comprises a male die body fixed on the male fixed plate and a plurality of male die teeth protruding outwards from the male die body in the radial direction, and a male die groove is formed between every two adjacent male die teeth.
Preferably, the male die body and the outer diameter female die are fixed on the convex fixing plate through screws or positioning pins.
Preferably, the male die teeth comprise tooth bodies, two connecting parts which are symmetrically inclined outwards and protrude from the tooth bodies, and two grooves which are symmetrically arranged in the connecting parts and the female die body bordering parts, wherein the connecting parts are symmetrical about the symmetrical line of the tooth bodies, and the grooves are symmetrical about the symmetrical line of the tooth bodies. The width of the concave part of the punched product can not be too narrow by arranging the groove after the connecting part is protruded, the product is not easy to break due to overlarge blanking force in the stamping process, and the product yield is improved.
Preferably, the distance between the groove bottoms of the two grooves is the same as the width of the tooth body.
Preferably, the male die groove forms a convex part corresponding to the groove at the border of the male die body.
Preferably, the width of the male die groove is gradually reduced inwards in the radial direction, and the distance between the connecting part of every two adjacent male die teeth and the connecting part of the groove is the smallest.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: 1. the utility model discloses a knife edge face of external diameter die is higher than the design of the knife edge face of cell type internal diameter terrace die for during the blanking, external diameter die and cell type internal diameter terrace die form the difference in height, and the external diameter die can be washed out the half-product of confirming the external diameter earlier in process of production, and the cell type internal diameter is washed again, and the external diameter internal diameter is successively punched, disperses the impact-carrying capacity of mould, improves the plane degree of product, reduces the product concave surface, has improved the product yield;
2. the width of the sunken part of the punched product cannot be too narrow by arranging the groove after the connecting part is protruded, the product is not easy to break due to overlarge punching force in the punching process, and the product yield is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged schematic view of a groove-shaped inner diameter male die;
FIG. 3 is a schematic cross-sectional view taken along line K-K of FIG. 1;
wherein, 1, an outer diameter concave die; 2. a groove-shaped inner diameter male die; 21. a male die body; 22. convex die teeth; 221. a male die body; 222. a connecting portion; 223. a groove; 23. and (4) forming a male die groove.
Detailed Description
The composite die structure for reducing blanking force as shown in the figures.
The blanking upper die comprises an upper die base, a convex fixing plate fixed at the lower part of the upper die base and a composite die fixed on the convex fixing plate.
The compound die comprises an outer diameter female die 1 fixed on a male fixed plate and a groove type inner diameter male die 2 fixed on the male fixed plate and arranged in the outer diameter female die 1, wherein the bottom surface of the outer diameter female die 1 and the bottom surface of the groove type inner diameter male die 2 are both knife edge surfaces, the knife edge surface of the outer diameter female die 1 is higher than the knife edge surface of the groove type inner diameter male die 2, as shown in figure 3, the height of the outer diameter female die 1 is 50mm, the height of the groove type inner diameter male die 2 is 49.5mm, the height difference between the bottom surface of the outer diameter female die and the knife edge surface of the groove type inner diameter male die 2 is 0.5mm, and the knife edge surface of the outer diameter female die 1 is higher than the knife edge surface of the groove type inner diameter male die 2, so that the height difference is formed between the outer diameter female die and the groove type inner diameter male die during blanking, the outer diameter female die can firstly punch the outer diameter of a product in the production process, then punch the groove type inner diameter, the punching load of the die is dispersed, the flatness of the product is improved, the concave surface is reduced, and the yield of the product is improved.
As shown in fig. 1, the punch body 21 and the outer diameter die 1 are fixed to the punch plate by screws or dowel pins.
As shown in fig. 1-2, the groove-shaped inner diameter punch 2 comprises a punch body 21 fixed on the male fixed plate, a plurality of male die teeth 22 protruding radially outwards from the punch body 21, and a male die groove 23 is formed between two adjacent male die teeth 22.
As shown in fig. 2, the punch tooth 22 includes a tooth body 221, two connecting portions 222 protruding symmetrically outward and obliquely from the tooth body 221, and two grooves 223 symmetrically disposed at the connecting portion 222 and the bordering portion of the punch body 21, the two connecting portions 222 are symmetrical with respect to the symmetrical line of the tooth body 221, the two grooves 223 are symmetrical with respect to the symmetrical line of the tooth body 221, the distance between the bottoms of the two grooves 223 is the same as the width of the tooth body 221, the punch groove 23 forms a convex portion corresponding to the groove 223 at the bordering portion with the punch body 21, the width of the punch groove 23 gradually decreases radially inward, and the distance between the connecting portion 222 of two adjacent punch teeth 22 and the bordering portion of the groove 223 is the minimum.
The width of the concave part of the punched product can not be too narrow by arranging the groove after the connecting part is protruded, the product is not easy to break due to overlarge blanking force in the stamping process, and the product yield is improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. The utility model provides a reduce compound die mould structure of blanking power, includes the upper die base, is fixed in the protruding board of fixing of upper die base lower part, be fixed in compound die on the protruding board of fixing, its characterized in that: the compound die comprises an outer diameter female die (1) fixed on the convex fixing plate and a groove type inner diameter male die (2) fixed on the convex fixing plate and arranged in the outer diameter female die (1), wherein the bottom surface of the outer diameter female die (1) and the bottom surface of the groove type inner diameter male die (2) are both knife edge surfaces, and the knife edge surface of the outer diameter female die (1) is higher than the knife edge surface of the groove type inner diameter male die (2).
2. The compound die structure for reducing blanking force according to claim 1, wherein: the height difference between the knife edge surface of the outer diameter female die (1) and the knife edge surface of the groove type inner diameter male die (2) is 0.3-0.7mm.
3. The compound die structure for reducing blanking force of claim 1, wherein: cell type internal diameter terrace die (2) are including being fixed in terrace die body (21), a plurality of certainly on the protruding solid board terrace die body (21) are protruding die tooth (22) outside radial, adjacent two form protruding die groove (23) between protruding die tooth (22).
4. The compound die structure for reducing blanking force of claim 3, wherein: the male die body (21) and the outer diameter female die (1) are fixed on the convex fixing plate through screws or positioning pins.
5. The compound die structure for reducing blanking force as recited in claim 3, wherein: the male die tooth (22) comprises a tooth body (221), two connecting parts (222) which are symmetrically and outwards inclined and protrude from the tooth body (221), two grooves (223) which are symmetrically arranged at the connecting parts (222) and the border part of the male die body (21), wherein the connecting parts (222) are symmetrical to the line of symmetry of the tooth body (221), and the grooves (223) are symmetrical to the line of symmetry of the tooth body (221).
6. The blanking force reducing compound die structure of claim 5, wherein: the distance between the groove bottoms of the two grooves (223) is the same as the width of the tooth body (221).
7. The blanking force reducing compound die structure of claim 5, wherein: the male die groove (23) forms a convex part corresponding to the groove (223) at the position of the male die body (21).
8. The compound die structure for reducing blanking force of claim 7, wherein: the width of the male die groove (23) is gradually reduced inwards in the radial direction, and the distance between the connecting part (222) of two adjacent male die teeth (22) and the connecting part of the groove (223) is the smallest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221252122.6U CN218079945U (en) | 2022-05-24 | 2022-05-24 | Composite die structure capable of reducing blanking force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221252122.6U CN218079945U (en) | 2022-05-24 | 2022-05-24 | Composite die structure capable of reducing blanking force |
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| Publication Number | Publication Date |
|---|---|
| CN218079945U true CN218079945U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221252122.6U Active CN218079945U (en) | 2022-05-24 | 2022-05-24 | Composite die structure capable of reducing blanking force |
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| CN (1) | CN218079945U (en) |
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- 2022-05-24 CN CN202221252122.6U patent/CN218079945U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Baohan Leasing Co.,Ltd. Assignor: SUZHOU FIND-STAMPING MACHINERY TECHNOLOGY Co.,Ltd. Contract record no.: X2023980035464 Denomination of utility model: A Composite Mold Structure for Reducing Blanking Force Granted publication date: 20221220 License type: Exclusive License Record date: 20230515 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Composite Mold Structure for Reducing Blanking Force Effective date of registration: 20230517 Granted publication date: 20221220 Pledgee: Jiangsu Baohan Leasing Co.,Ltd. Pledgor: SUZHOU FIND-STAMPING MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2023980040709 |