CN202225462U - Lower cutter inclined cutting edge device of stamping die - Google Patents
Lower cutter inclined cutting edge device of stamping die Download PDFInfo
- Publication number
- CN202225462U CN202225462U CN 201120195666 CN201120195666U CN202225462U CN 202225462 U CN202225462 U CN 202225462U CN 201120195666 CN201120195666 CN 201120195666 CN 201120195666 U CN201120195666 U CN 201120195666U CN 202225462 U CN202225462 U CN 202225462U
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- punching
- lower cutter
- edge device
- stamping die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004080 punching Methods 0.000 abstract 6
- 238000010008 shearing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Punching Or Piercing (AREA)
Abstract
The utility model relates to a die lower cutter oblique cutting edge device, a blade structure for large-tonnage blanking force stamping die lower cutter. The plane of the lower blade edge surface of the conventional punching die is ground into an inclined surface or a curved surface, and the instantaneous punching force is changed into a short-time continuous punching force, so that the punching force required by a punching workpiece is close to the maximum pressure of a punching machine tool.
Description
Technical field
The utility model is a kind of cutting edge structure that belongs to cutter under the diel, belongs to a kind of machining set-up.
Background technology
The following blade actinal surface of conventional diel is the plane; Calculate the principle of blanking pressure by diel: the required blanking pressure F=of stamping-out workpiece τ (shear strength) * S (shearing area is long-pending) * 1.25 (safety coefficient)≤press machine maximum pressures that is to say that the required blanking pressure of stamped workpieces must be less than or equal to 80% of this press machine maximum pressure.When the required blanking pressure of stamped workpieces greater than this press machine maximum pressure 80% or during near maximum pressure, use this kind cutting edge structure and this press machine, can't stamped workpieces.
Summary of the invention
The purpose of the utility model just provides the required blanking pressure of a kind of stamped workpieces greater than press machine maximum pressure 80% or a kind of cutting edge structure near near the press machine maximum pressure time.Needing the large-tonnage blanking pressure and can't search out under the situation of stamping press greater than 20% press machine, can edge be the diel stamping-out workpiece of inclined-plane or curved surface under adopting on the approaching press machine of existing stamping press.
The technical scheme of the utility model is following: cutter declivous cutting edge device is exactly to wear into inclined-plane or curved surface to the plane of blade actinal surface under the conventional punch die under the punch die, thereby makes the moment blanking pressure become a bit of time continuous stamping power.
The major advantage of the utility model: existing press machine capable of using, improve the blanking pressure to stamped workpieces processing.
Description of drawings
Fig. 1 is a cutter sketch map under the utility model.
Fig. 2 is the B-B cut-away view.
The specific embodiment
Like Fig. 1, shown in Figure 2, the following blade actinal surface of the utility model is worn into inclined-plane or curved surface.During stamping-out, because following blade actinal surface is inclined-plane or curved surface, the cutting edge face length, the workpiece face does not fall into down simultaneously in the cutter, and the blanking pressure of generation is a bit of time continuous stamping power; Calculating the principle of blanking pressure: S (shearing area is long-pending) by diel is a part; Blanking pressure is the part of maximum blanking pressure of moment each moment in this short time; And moment maximum blanking pressure a part be far smaller than the stamping press of press machine, thereby make the required blanking pressure of stamping-out workpiece can be near the press machine maximum pressure.
Claims (1)
1. cutter declivous cutting edge device under the punch die, it is characterized in that: the cutting edge face of following cutter is inclined-plane or curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120195666 CN202225462U (en) | 2011-06-13 | 2011-06-13 | Lower cutter inclined cutting edge device of stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120195666 CN202225462U (en) | 2011-06-13 | 2011-06-13 | Lower cutter inclined cutting edge device of stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202225462U true CN202225462U (en) | 2012-05-23 |
Family
ID=46076066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120195666 Expired - Lifetime CN202225462U (en) | 2011-06-13 | 2011-06-13 | Lower cutter inclined cutting edge device of stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202225462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318606A (en) * | 2020-02-27 | 2020-06-23 | 常州机电职业技术学院 | Stamping method capable of reducing blanking force |
-
2011
- 2011-06-13 CN CN 201120195666 patent/CN202225462U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318606A (en) * | 2020-02-27 | 2020-06-23 | 常州机电职业技术学院 | Stamping method capable of reducing blanking force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |