CN202438654U - Cold forging mould for iron core - Google Patents
Cold forging mould for iron core Download PDFInfo
- Publication number
- CN202438654U CN202438654U CN201220064803XU CN201220064803U CN202438654U CN 202438654 U CN202438654 U CN 202438654U CN 201220064803X U CN201220064803X U CN 201220064803XU CN 201220064803 U CN201220064803 U CN 201220064803U CN 202438654 U CN202438654 U CN 202438654U
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- China
- Prior art keywords
- die
- iron core
- cold forging
- drift
- push rod
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a cold forging mould for an iron core. A punch (1), a concave mould (3), a base plate (5) and an ejector rod (6) are arranged in turn from top to bottom, wherein the ejector rod (6) has a stepped shaft structure and is in slide fit with the concave mould (3) and the base plate (5); a cavity (3.1) is formed by the punch (1), the concave mould (3) and the ejector rod (6); a trapezoid-shaped slot (1.1) matched with a trapezoid-shaped platform (7.1) is arranged at the bottom of the punch (1); an upward convex cusp (6.1) is arranged at the upper end of the ejector rod (6); two upward convex positioning heads (3.2) are arranged on a bottom surface (3.4) of the concave mould (3); and a filleted corner (3.3) is arranged at a joint of the bottom surface (3.4) and a peripheral wall (3.5) of the concave mould (3). By adopting the cold forging mould for the iron core, the production cost is lowered and the production efficiency is increased.
Description
Technical field
The utility model relates to a kind of cold forging die, especially a kind of cold forging die that forges iron core.
Background technology
A kind of existing iron core that is used on the dynamic loudspeaker comprises round platform and top bucking ladder, described round platform lower surface be provided with fovea superior, cross section is leg-of-mutton triangular groove, the limit of said round platform is provided with fillet.The general two cover cold forging dies that adopt of prior art, a cover cold forging die forges round platform, bucking ladder and triangular groove, and another set of cold forging die forges fillet, but adopts two cover cold forging dies not only to increase production cost, and production efficiency is low.
The utility model content
The utility model technical problem to be solved is that a kind of iron core cold forging die that can reduce production costs, enhance productivity is provided.
The technical solution of the utility model is; A kind of iron core cold forging die with following structure is provided; Be provided with drift, die, backing plate and push rod from top to bottom successively, described push rod is the multidiameter structure and is slidingly matched with die, backing plate that described drift, die and push rod constitute die cavity; Described drift bottom surface is provided with the dovetail groove that matches with bucking ladder; Described push rod upper end is provided with the tip of epirelief; Described die bottom surface is provided with the positioning head of two epireliefs, and described die bottom surface and circle wall junction are provided with fillet.
After adopting above structure, a kind of iron core cold forging die of the utility model compared with prior art has the following advantages:
The drift bottom surface of a kind of iron core cold forging die of the utility model is provided with the dovetail groove that matches with bucking ladder can forge and press out the bucking ladder above the iron core; The tip that is provided with epirelief on the described push rod can forge and press out the triangular groove of round platform lower surface; The positioning head of described die and die bottom surface epirelief can forge and press out the locating slot of round platform and round platform lower surface, and the utility model adopts a mold, can reduce production costs; The cold forging one-shot forming can be enhanced productivity.
As a kind of improvement of the utility model, described radius of corner is 0.3mm～1.0mm.
As preferably, described radius of corner is 0.5mm.
As a kind of improvement of the utility model, close-fitting is gone back in the described drift outside has the drift circle stress; Close-fitting is gone back in the described die outside has the die circle stress, and described die circle stress is connected with shim.Described drift circle stress and die circle stress respectively with drift and die tight fit, can prevent drift and die generation deformation, drift and die are shielded.
Description of drawings
Shown in Figure 1 is the structural representation of a kind of iron core cold forging die of the utility model.
Structural representation for the iron core after machining shown in Figure 2.
Shown in Figure 3 is local enlarged diagram among Fig. 2.
Shown in the figure, 1, drift, 1.1, dovetail groove, 2, the drift circle stress, 3, die; 3.1, die cavity, 3.2, positioning head, 3.3, fillet, 3.4, the bottom surface, 3.5, circle wall; 4, die circle stress, 5, the die backing plate, 6, push rod, 6.1, tip, 7, iron core; 7.1, bucking ladder, 7.2, round platform, 7.3, locating slot, 7.4, triangular groove.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Please with reference to Fig. 1, Fig. 2 and shown in Figure 3; A kind of iron core cold forging die of the utility model is provided with drift 1, die 3, backing plate 5 and push rod 6 from top to bottom successively; Described push rod 6 is slidingly matched for the multidiameter structure and with die 3, backing plate 5, and described drift 1, die 3 and push rod 6 constitute die cavities 3.1; Described drift 1 bottom surface is provided with the dovetail groove 1.1 that matches with bucking ladder 7.1; Described push rod 6 upper ends are provided with the tip 6.1 of epirelief; Described die 3 bottom surfaces 3.4 are provided with the positioning head 3.2 of two epireliefs, and described die 3 bottom surfaces 3.4 are provided with fillet 3.3 with circle wall 3.5 junctions.
Described fillet 3.3 radiuses are 0.3mm～1.0mm.
Described fillet 3.3 radiuses are 0.5mm.
Described drift 1 outside also is provided with drift circle stress 2; Described die 3 outsides also are provided with die circle stress 4, and described die circle stress 4 is fixedly connected with backing plate 5.
More than be the specific embodiment of the utility model, be not limited to above embodiment in actual the use, all some that under the inventive concept of the utility model, done change, all in the protection domain of the utility model.
Claims (4)
1. iron core cold forging die; Be provided with drift (1), die (3), backing plate (5) and push rod (6) from top to bottom successively; Described push rod (6) is slidingly matched for the multidiameter structure and with die (3), backing plate (5), and described drift (1), die (3) and push rod (6) constitute die cavity (3.1); It is characterized in that: described drift (1) bottom surface is provided with the dovetail groove (1.1) that matches with bucking ladder (7.1); Described push rod (6) upper end is provided with the tip (6.1) of epirelief; Described die (3) bottom surface (3.4) is provided with the positioning head (3.2) of two epireliefs, and described die (3) bottom surface (3.4) is provided with fillet (3.3) with circle wall (3.5) junction.
2. a kind of iron core cold forging die according to claim 1 is characterized in that: described fillet (3.3) radius is 0.3mm～1.0mm.
3. a kind of iron core cold forging die according to claim 2 is characterized in that: described fillet (3.3) radius is 0.5mm.
4. a kind of iron core cold forging die according to claim 1 is characterized in that: close-fitting is gone back in described drift (1) outside has drift circle stress (2); Close-fitting is gone back in described die (3) outside has die circle stress (4), and described die circle stress (4) is fixedly connected with backing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220064803XU CN202438654U (en) | 2012-02-27 | 2012-02-27 | Cold forging mould for iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220064803XU CN202438654U (en) | 2012-02-27 | 2012-02-27 | Cold forging mould for iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438654U true CN202438654U (en) | 2012-09-19 |
Family
ID=46820109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220064803XU Expired - Fee Related CN202438654U (en) | 2012-02-27 | 2012-02-27 | Cold forging mould for iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480786A (en) * | 2013-09-27 | 2014-01-01 | 江苏太平洋精锻科技股份有限公司 | Shaft end bevel gear forging mould |
| CN115921748A (en) * | 2022-12-26 | 2023-04-07 | 浙江精勇精锻机械有限公司 | Forming Die for Magnetic Lock Iron Core Hot Forging Machine |
-
2012
- 2012-02-27 CN CN201220064803XU patent/CN202438654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480786A (en) * | 2013-09-27 | 2014-01-01 | 江苏太平洋精锻科技股份有限公司 | Shaft end bevel gear forging mould |
| CN115921748A (en) * | 2022-12-26 | 2023-04-07 | 浙江精勇精锻机械有限公司 | Forming Die for Magnetic Lock Iron Core Hot Forging Machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20140227 |