CN107377778A - A kind of drift and decompressor - Google Patents
A kind of drift and decompressor Download PDFInfo
- Publication number
- CN107377778A CN107377778A CN201710797181.9A CN201710797181A CN107377778A CN 107377778 A CN107377778 A CN 107377778A CN 201710797181 A CN201710797181 A CN 201710797181A CN 107377778 A CN107377778 A CN 107377778A
- Authority
- CN
- China
- Prior art keywords
- drift
- beading
- technique
- bull nose
- sheet metal
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Telephone Set Structure (AREA)
- Punching Or Piercing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a kind of drift and decompressor, belongs to electronic equipment manufacturing technical field.The outside of the drift is provided with technique beading, and the position of the technique beading forms the position correspondence of bull nose with bending on the sheet metal.The disclosure on drift by setting technique beading, bending forms the position correspondence of bull nose on the position of technique beading and sheet metal, during punch sheet metal, technique beading makes the material on the inside of sheet metal bending position flow laterally, crack when forming the bull nose of metal target part with filling between materials microstructure, prevent from producing torn grain at the bull nose on metal target part, and then improve product quality, and save the process for eliminating torn grain, production cost is reduced, improves processing efficiency.
Description
Technical field
This disclosure relates to electronic equipment manufacturing technical field, more particularly to a kind of drift and decompressor.
Background technology
Cell phone rear cover has wear-resisting, resistance to fall and good hand touch made of the metal materials such as aluminium alloy, titanium alloy or stainless steel
The features such as, and be easier for original plastic handset shell to make the moulding of fineness, liked by consumer very much.
The cell phone rear cover of metal material forms sheet metal generation plastic deformation by Sheet Metal Forming Technology at present, Sheet Metal Forming Technology
The middle drift used copys the internal structure design of cell phone rear cover completely, and the position self-assembling formation of sheet metal bending is made on drift
Outer wedge angle, bending is occurred by the sheet metal after the completion of punch, in bending position, is internally formed square corner, outside shape
Into bull nose, wherein, the angle or plane that the plane that wedge angle refers to be formed on product is formed with surface intersection are crossed to form with plane
Angle.
The content of the invention
To overcome problem present in correlation technique, the disclosure provides a kind of drift and decompressor.
According to the disclosure in a first aspect, the embodiment of the present disclosure provides a kind of drift, the drift is used for stamped sheet metal
Material makes its bending form metal target part, and in the position of the sheet metal bending, the outside of the metal target part is formed outside
Fillet,
The outside of the drift is provided with technique beading, and the position of the technique beading is formed with bending on the sheet metal
The position correspondence of bull nose, for making in punching course, the material on the inside of the sheet metal bending position flows laterally, with
Crack when filling forms the bull nose of the metal target part between materials microstructure.
Specifically, twice of the radius of the bull nose less than or equal to the thickness of the sheet metal.
Specifically, the metal target part is the electronic equipment bonnet of aluminum alloy material.
Specifically, the thickness of the sheet metal is 0.8mm, and the radius of the fillet is 1.6mm.
Further, the shape of cross section of the technique beading is isosceles right triangle, and the isosceles right angle trigonometry
The radian midpoint of the right-angled apices of shape, the center of circle of the bull nose and the fillet is conllinear.
Specifically, the right-angle side length of side of the cross section of the technique beading is 0.15mm.
Further, the technique beading is integrally formed with the drift.
According to the second aspect of the disclosure, the exemplary embodiment of the disclosure provides a kind of decompressor, the punching press dress
Put including the drift.
The technical scheme provided by this disclosed embodiment can include the following benefits：
The disclosure by setting technique beading on drift, on the position of technique beading and sheet metal bending formed cylindrical
The position correspondence at angle, during punch sheet metal, technique beading makes the material on the inside of sheet metal bending position
Flow laterally, crack when forming the bull nose of metal target part with filling between materials microstructure, prevent metal target part
On bull nose at produce torn grain, and then improve product quality, and save eliminate torn grain process, reduce production cost,
Improve processing efficiency.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is the structural representation of the drift according to an exemplary embodiment.
Fig. 2 is the use state diagram of the drift according to an exemplary embodiment.
Fig. 3 is the metal target part section structure diagram according to an exemplary embodiment.
Wherein：
1 drift,
2 technique beadings,
3 metal target parts, 31 fillets.
Embodiment
To make the purpose, technical scheme and advantage of the disclosure clearer, below in conjunction with accompanying drawing to disclosure embodiment party
Formula is described in further detail.
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
In order that the border sense on cell phone rear cover is clearly more demarcated, the radius of the bull nose of cell phone rear cover is typically less than or equal to two
It is used for the thickness for manufacturing the sheet metal of cell phone rear cover again, and after copying mobile phone completely due to the drift of current production cell phone rear cover
The internal structure design of lid, the outside at sheet metal bending position stretch more serious in punching course, easily make mobile phone
Torn grain is produced at the bull nose of bonnet, influences product quality, and the difficulty for eliminating torn grain is larger, takes longer.
Embodiment one
As shown in figure 1, and illustrate with reference to Fig. 2, the drift 1, which is used for stamped metal sheet material, makes its bending form target
Metalwork 3, in the position of the sheet metal bending, the outside of the metal target part 3 forms bull nose 31；
The outside of the drift 1 is provided with technique beading 2, position and the bending on the sheet metal of the technique beading 2
The position correspondence of bull nose 31 is formed, for making in punching course, the material on the inside of the sheet metal bending position is laterally
Flowing, the crack formed when forming the bull nose 31 of the metal target part 3 with filling between materials microstructure.
The disclosure by setting technique beading 2 on drift 1, on the position of technique beading 2 and sheet metal bending formed
The position correspondence of bull nose 31, during the stamped metal sheet material of drift 1, technique beading 2 makes in sheet metal bending position
The material of side flows laterally, crack when forming the bull nose 31 of metal target part 3 with filling between materials microstructure, prevents
Torn grain is produced at bull nose 31 on metal target part 3, and then improves product quality, and saves the process for eliminating torn grain,
Production cost is reduced, improves processing efficiency.
In an exemplary embodiment of the disclosure, metal target part 3 is primarily referred to as mobile phone, tablet personal computer, MP4, MP5 or pen
Remember the bonnet of the electronic equipment of the aluminum alloy materials such as this computer, wherein, the structural representation of cell phone rear cover is as shown in Figure 3.Certainly,
Skilled person will appreciate that the drift 1 that the exemplary embodiment of the disclosure provides can also be used for punching press, other make sheet metal
The part of bending.
When producing the bonnet of electronic equipment, ready sheet metal is fixed on the relevant position of decompressor, and
After start decompressor, the drift 1 that the exemplary embodiment of the disclosure provides is moved downward stamped metal sheet material, in this process
In, sheet metal is plastically deformed in the presence of drift 1, because the outline of drift 1 copys the inside of metal target part 3
Profile design, therefore by can obtain metal target part 3 after punching press.But in the opening position of sheet metal bending, sheet metal
Outside can be stretched and make to produce crack between materials microstructure, in an exemplary embodiment of the disclosure, due on drift 1
There is provided technique beading 2, technique beading 2 can force the outside effluent of the material of the inner side of sheet metal bending part in punching course
It is dynamic, with fill its outside formed at the bull nose 31 of metal target part 3 between materials microstructure because of stretching and caused by crack, from
And avoid forming torn grain at the bull nose 31 of metal target part 3.
In an exemplary embodiment of the disclosure, the radius of the bull nose 31 is less than or equal to the thickness of the sheet metal
Twice of degree, bull nose 31 is smaller, ensures that the structure of metal target part 3 is more attractive in appearance, and due to bull nose 31 it is smaller when, metal
It is relatively large that the degree being stretched is formed on the outside of the position of bull nose 31 on sheet material, can be carried by the exemplary embodiment of the disclosure
The stamped metal sheet material of drift 1 of confession and effectively prevent from forming torn grain at the bull nose 31 of metal target part 3.
Experiment shows, when the thickness of sheet metal is smaller, and twice of the thickness of the radius of bull nose 31 and sheet metal
Ratio get over hour, the editing objective metalwork 3 of drift 1 provided using the exemplary embodiment of the disclosure, it prevents that target is golden
The effect for belonging to formation torn grain at the bull nose 31 of part 3 is better.
So that metal target part 3 is the cell phone rear cover of aluminum alloy material as an example, the thickness of the sheet metal is 0.8mm, institute
The radius for stating fillet is 1.6mm, and now, in the outside of sheet metal bending position, the punching press of drift 1 is by length on sheet metal
2.5mm is drawn into for 1.6mm region, because the thickness of sheet metal is 0.8mm, the material of the sheet metal of unit length
Measure less, therefore torn grain easily produced in the outside of sheet metal bending position, the exemplary embodiment of the disclosure by
Technique beading 2 is set on drift 1, and material when can force punching press on the inside of sheet metal flows laterally, fills outside sheet metal
Because stretching forms crack between the materials microstructure of side, so as to avoid generation torn grain at the bull nose 31 of metal target part 3, carry
High yield quality.
As shown in figure 1, in an exemplary embodiment of the disclosure, the shape of cross section of the technique beading 2 is straight for isosceles
Angle triangle, and the center of circle of the right-angled apices of the isosceles right triangle, the fillet and the radian midpoint of the fillet
Collinearly.
In an exemplary embodiment of the disclosure, the radian midpoint of fillet refers to that with the line in the center of circle of fillet circle can be divided equally
The point for the arc that angle is formed, in an exemplary embodiment of the disclosure, the right-angled apices face fillet radian of isosceles right triangle
Midpoint, it is ensured that at sheet metal bending position, amount position different from the outside of sheet metal that inside material is filled laterally
The degree being stretched is put to match.
Certainly, skilled person will appreciate that, the shape of cross section of technique beading 2 is alternatively：Trapezoidal, two waists are in fold-line-shaped
The class triangle of change or arc etc., are not limited in an exemplary embodiment of the disclosure.
In an exemplary embodiment of the disclosure, the right-angle side length of side of the cross section of the technique beading 2 is 0.15mm,
During ensureing stamped metal sheet material, on the premise of the outside of sheet metal bending position will not produce torn grain, avoid because
The setting of technique beading 2 causes sheet metal bending position material outside more than needed or sheet metal is pierced, and influences U.S. of product
The property seen, or even influence the yield rate of product.
In an exemplary embodiment of the disclosure, the technique beading 2 is integrally formed with the drift 1, it is only necessary to existing
Simple modifications are done on the architecture basics of drift 1, both ensure that the intensity of the structure of drift 1, and guarantee is simple in construction, is easy to add
Work.
Embodiment two
The exemplary embodiment of the disclosure provides a kind of decompressor, and the decompressor is included described in embodiment one
Drift 1, the structure of the drift 1 as shown in figure 1, repeat no more in the present embodiment.
The disclosure by setting technique beading 2 on drift 1, on the position of technique beading 2 and sheet metal bending formed
The position correspondence of bull nose 31, during the stamped metal sheet material of drift 1, technique beading 2 makes in sheet metal bending position
The material of side flows laterally, crack when forming the bull nose 31 of metal target part 3 with filling between materials microstructure, prevents
Torn grain is produced at bull nose 31 on metal target part 3, and then improves product quality, and saves the process for eliminating torn grain,
Production cost is reduced, improves processing efficiency.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledges in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by above
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (8)
1. a kind of drift, the drift is used for stamped metal sheet material and its bending is formed metal target part, in the metallic plate
The position of material bending, the outside of the metal target part form bull nose, it is characterised in that
The outside of the drift is provided with technique beading, and the position of the technique beading forms cylindrical with bending on the sheet metal
The position correspondence at angle, for making in punching course, the material on the inside of the sheet metal bending position flows laterally, with filling
Crack when forming the bull nose of the metal target part between materials microstructure.
2. drift according to claim 1, it is characterised in that the radius of the bull nose is less than or equal to the metallic plate
Twice of the thickness of material.
3. drift according to claim 2, it is characterised in that the metal target part is the electronic equipment of aluminum alloy material
Bonnet.
4. drift according to claim 3, it is characterised in that the thickness of the sheet metal is 0.8mm, the bull nose
Radius be 1.6mm.
5. drift according to claim 4, it is characterised in that the shape of cross section of the technique beading is isosceles right angle three
It is angular, and the center of circle of the right-angled apices of the isosceles right triangle, the bull nose and the radian midpoint of the bull nose are total to
Line.
6. drift according to claim 5, it is characterised in that the right-angle side length of side of the cross section of the technique beading is
0.15mm。
7. according to the drift described in any one of claim 1-6 claim, it is characterised in that the technique beading and the punching
It is first body formed.
8. a kind of decompressor, it is characterised in that the decompressor is included described in any one of claim 1-7 claim
Drift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797181.9A CN107377778B (en) | 2017-09-06 | 2017-09-06 | Punch and punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797181.9A CN107377778B (en) | 2017-09-06 | 2017-09-06 | Punch and punching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107377778A true CN107377778A (en) | 2017-11-24 |
| CN107377778B CN107377778B (en) | 2020-06-02 |
Family
ID=60351738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710797181.9A Active CN107377778B (en) | 2017-09-06 | 2017-09-06 | Punch and punching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107377778B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506121A (en) * | 2018-12-27 | 2019-03-22 | 东风汽车集团股份有限公司乘用车公司 | Cross drawing structure, stamping products and stamping die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202516892U (en) * | 2012-03-09 | 2012-11-07 | 上海启元空分技术发展股份有限公司 | Device for machining sheet metal of conical tube |
| CN202741499U (en) * | 2012-07-05 | 2013-02-20 | 安徽科达汽车轴瓦有限公司 | Shaft shoe press |
| CN104226747A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Bending device for metal bars |
| EP2845662A1 (en) * | 2013-09-04 | 2015-03-11 | Ford Otomotiv Sanayi Anonim Sirketi | Pressing method, press, profile and vehicle |
| CN104870118A (en) * | 2013-01-07 | 2015-08-26 | 新日铁住金株式会社 | Press component and method and device for manufacturing same |
-
2017
- 2017-09-06 CN CN201710797181.9A patent/CN107377778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202516892U (en) * | 2012-03-09 | 2012-11-07 | 上海启元空分技术发展股份有限公司 | Device for machining sheet metal of conical tube |
| CN202741499U (en) * | 2012-07-05 | 2013-02-20 | 安徽科达汽车轴瓦有限公司 | Shaft shoe press |
| CN104870118A (en) * | 2013-01-07 | 2015-08-26 | 新日铁住金株式会社 | Press component and method and device for manufacturing same |
| CN104226747A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Bending device for metal bars |
| EP2845662A1 (en) * | 2013-09-04 | 2015-03-11 | Ford Otomotiv Sanayi Anonim Sirketi | Pressing method, press, profile and vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506121A (en) * | 2018-12-27 | 2019-03-22 | 东风汽车集团股份有限公司乘用车公司 | Cross drawing structure, stamping products and stamping die |
| CN109506121B (en) * | 2018-12-27 | 2024-01-23 | 东风汽车集团股份有限公司 | Over-drawing structure, stamping product and stamping die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107377778B (en) | 2020-06-02 |
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