CN204052588U - The crack resistence bending progressive die - Google Patents
The crack resistence bending progressive die Download PDFInfo
- Publication number
- CN204052588U CN204052588U CN201420379407.5U CN201420379407U CN204052588U CN 204052588 U CN204052588 U CN 204052588U CN 201420379407 U CN201420379407 U CN 201420379407U CN 204052588 U CN204052588 U CN 204052588U
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- Prior art keywords
- upper punch
- bending
- folding surface
- progressive die
- bender
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Abstract
The utility model discloses a kind of crack resistence bending progressive die, it comprises the first bender and the second bender, described first bender comprises first upper punch and the first time tray supporting with described first upper punch with the first folding surface, described second bender comprises second upper punch and the second time tray supporting with described second upper punch with the second folding surface, and the bending angle of described first folding surface is less than the bending angle of described second folding surface; The side of described first upper punch is provided with the first secondary drift, and the side of described second upper punch is provided with the second secondary drift.The utility model is in two step bendings, and by setting up secondary drift on upper punch side, the balanced deflection by bending workpieces secondary bending, reduces the probability of workpiece cracking.
Description
[technical field]
The utility model relates to metal stamping manufacture field, particularly a kind of Bending Mould preventing the workpiece of existing flanging from ftractureing in secondary bending.
[background technology]
Bending is very common a kind of operation in punching press.But the product that bending causes ftractures or cracks is the defect that a stamping parts is fatal, is particularly a great hidden danger concerning the parts on automobile.
A class stamping parts is there is in actual processing, structure as shown in Figure 1 and Figure 2, the first flanging 13 that workpiece 1 comprises basal plane 11, be bent to form from the first knuckle 12 of basal plane 11 and the second flanging 15, first knuckle 12 be bent to form from the second knuckle 14 of basal plane 11 and the second knuckle 14 intersect.The difficult point of this type of Product processing is: the first flanging 13 can produce holding power to basal plane 11, and the order material be positioned near the first knuckle 12 is not easy distortion; But secondary bending requires that will there be uniform distortion each position of the second knuckle 14, because the first knuckle 12 hinders the diffusion of bending power, create the inhomogeneities of distortion, so when secondary bending, there is cracking or crack in as easy as rolling off a log tear-strap 151 place on the second flanging 15 of product 1, make product 1 performance reduce, even security risk occurs.
Therefore, be necessary to provide a kind of crack resistence bending progressive die to solve above problem.
[utility model content]
Main purpose of the present utility model is to provide a kind of Bending Mould preventing the workpiece of existing flanging from ftractureing in secondary bending.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of crack resistence bending progressive die, it comprises the first bender and the second bender, described first bender comprises first upper punch and the first time tray supporting with described first upper punch with the first folding surface, described second bender comprises second upper punch and the second time tray supporting with described second upper punch with the second folding surface, and the bending angle of described first folding surface is less than the bending angle of described second folding surface; The side of described first upper punch is provided with the first secondary drift, and the side of described second upper punch is provided with the second secondary drift.
In some embodiments, described first secondary drift has the first secondary folding surface identical with described first folding surface bending angle.
In some embodiments, described second secondary drift has the second secondary folding surface identical with described second folding surface bending angle.
Preferably, described first upper punch is fixed on below the first upper bolster, and the first secondary drift is connected to described first upper bolster by spring.
In some embodiments, described first upper punch side is provided with the first guide groove, and described first secondary drift can be contained in described first guide groove mobile.
Preferably, described second upper punch is fixed on below the second upper bolster, and the second secondary drift is connected to described second upper bolster by spring.
In some embodiments, described second upper punch side is provided with the second guide groove, and described second secondary drift can be contained in described second guide groove mobile.
Compared with prior art, the beneficial effect of the utility model crack resistence bending progressive die is:
1, make workpiece second knuckle stress concentration portion divide stress deformation together by secondary punch structure, prevent the second flanging owing to being subject to the impact of the first flanging and drawing crack.
2, secondary drift can slide in upper punch guide groove, can prior to upper punch contact workpiece under the pressure effect of spring, and stress concentration portion is divided be out of shape one step ahead, and then coordinate with upper punch the bending of whole piece second knuckle is put in place, prevent the different piece of the second flanging from ftractureing because of modified difference.
3, adopt the mode of two step bendings, allow material rebounds to weaken internal stress, reduce product crack probability further.
[accompanying drawing explanation]
Fig. 1 is the front view of secondary bending product.
Fig. 2 is the left view of secondary bending product.
Fig. 3 is that the utility model crack resistence bending progressive die faces upward sectional view.
Fig. 4 is part partial schematic diagram at work in the utility model A visual angle in Fig. 3.
Fig. 5 is part partial schematic diagram at work in the utility model B visual angle in Fig. 3.
Numeral in figure:
11, basal plane, the 12, first knuckle, the 13, first flanging, the 14, second knuckle, the 15, second flanging, 151, tear-strap.
210, the first bender, the 211, first upper bolster, the 212, first upper punch, the 2121, first folding surface, the 2122, first guide groove, 213, first time tray, the 214, first secondary drift, the 2141, first secondary folding surface, 2142, spring; 220, the second bender, the 221, second upper bolster, the 222, second upper punch, the 2221, second folding surface, the 2222, second guide groove, 223, second time tray, the 224, second secondary drift, the 2241, second secondary folding surface, 2242, spring.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Fig. 3 to Fig. 5, the crack resistence bending progressive die comprises the first bender 210 and the second bender 220.First bender 210 comprises the first upper bolster 211, is fixed on the first upper punch 212 below the first upper bolster 211, the first time tray 213 supporting with the first upper punch 212 and is positioned at the first secondary drift 214 of the first upper punch 212 side.Second bender 220 comprises the second upper bolster 221, to be fixed on below the second upper bolster 221 and to have the second upper punch 222 of the second folding surface 2221 and the second guide groove 2222, the second time tray 223 supporting with the second upper punch 222 and be positioned at the second secondary drift 224 of the second upper punch 222 side.
With reference to Fig. 3, Fig. 4, have the first folding surface 2121 below the first upper punch 212, side has the first guide groove 2122 of the secondary drift 214 of collecting first.First secondary drift 214 is fixed on the first upper bolster 211 with spring 2142.The bending angle of the first folding surface 2121 is 30 °, has a first secondary folding surface 2141 identical with the first folding surface 2121 bending angle below the first secondary drift 214.In pre-bending, first secondary drift 214 can touch the second flanging 14 position of workpiece 1 prior to the first upper punch 212, tear-strap 151 position is made first to be out of shape, after spring 2142 compresses, first upper punch 212 contacts with the second flanging 14 again, make whole second knuckle 14 homogeneous deformation, prevent the obstruction because of the first flanging 13 structure, make material deformation uneven and thrust; Workpiece 1 resilience can be made by pre-punching and weaken self stress, making workpiece 1 in two times punch be not easy cracking.
With reference to Fig. 3, Fig. 5, have the second folding surface 2221 below the second upper punch 222, side has the second guide groove 2222 of the secondary drift 224 of collecting second.Second secondary drift 224 is fixed on the second upper bolster 221 with spring 2242.The bending angle of the second folding surface 2221 is 90 °, has a second secondary folding surface 2241 identical with the second folding surface 2221 bending angle below the second secondary drift 224.During folding right angle, second secondary drift 224 can touch the second flanging 14 position of workpiece 1 prior to the second upper punch 222, tear-strap 151 position is made first to be out of shape, after spring 2242 compresses, second upper punch 222 contacts with the second flanging 14 again, make whole second knuckle 14 homogeneous deformation, prevent the obstruction because of the first flanging 13 structure, make material deformation uneven and thrust.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (7)
1. a crack resistence bending progressive die, it comprises the first bender and the second bender, described first bender comprises first upper punch and the first time tray supporting with described first upper punch with the first folding surface, described second bender comprises second upper punch and the second time tray supporting with described second upper punch with the second folding surface, the bending angle of described first folding surface is less than the bending angle of described second folding surface, it is characterized in that: the side of described first upper punch is provided with the first secondary drift, the side of described second upper punch is provided with the second secondary drift.
2. the crack resistence bending progressive die according to claim 1, is characterized in that: described first secondary drift has the first secondary folding surface identical with described first folding surface bending angle.
3. the crack resistence bending progressive die according to claim 1, is characterized in that: described second secondary drift has the second secondary folding surface identical with described second folding surface bending angle.
4. the crack resistence bending progressive die according to claim 1, it is characterized in that: described first upper punch is fixed on below the first upper bolster, the first secondary drift is connected to described first upper bolster by spring.
5. the crack resistence bending progressive die according to claim 4, is characterized in that: described first upper punch side is provided with the first guide groove, and described first secondary drift can be contained in described first guide groove mobile.
6. the crack resistence bending progressive die according to claim 1, it is characterized in that: described second upper punch is fixed on below the second upper bolster, the second secondary drift is connected to described second upper bolster by spring.
7. the crack resistence bending progressive die according to claim 6, is characterized in that: described second upper punch side is provided with the second guide groove, and described second secondary drift can be contained in described second guide groove mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379407.5U CN204052588U (en) | 2014-07-09 | 2014-07-09 | The crack resistence bending progressive die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379407.5U CN204052588U (en) | 2014-07-09 | 2014-07-09 | The crack resistence bending progressive die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204052588U true CN204052588U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420379407.5U Active CN204052588U (en) | 2014-07-09 | 2014-07-09 | The crack resistence bending progressive die |
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| CN (1) | CN204052588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216521A (en) * | 2016-08-31 | 2016-12-14 | 东莞市劲鼎汽配科技有限公司 | Continuous bending mould up and down |
| CN111774480A (en) * | 2020-04-08 | 2020-10-16 | 合肥丰吉科技有限公司 | Multi-curvature automobile bent plate stamping processing die and method |
-
2014
- 2014-07-09 CN CN201420379407.5U patent/CN204052588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216521A (en) * | 2016-08-31 | 2016-12-14 | 东莞市劲鼎汽配科技有限公司 | Continuous bending mould up and down |
| CN111774480A (en) * | 2020-04-08 | 2020-10-16 | 合肥丰吉科技有限公司 | Multi-curvature automobile bent plate stamping processing die and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |