CN102991585A - Contractible arc edge forming structure - Google Patents
Contractible arc edge forming structure Download PDFInfo
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- CN102991585A CN102991585A CN201210547320XA CN201210547320A CN102991585A CN 102991585 A CN102991585 A CN 102991585A CN 201210547320X A CN201210547320X A CN 201210547320XA CN 201210547320 A CN201210547320 A CN 201210547320A CN 102991585 A CN102991585 A CN 102991585A
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- contractible
- arc edge
- arc limit
- arc
- protrusions
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Abstract
The invention discloses a contractible arc edge forming structure in cold stamping technological machining. A plurality of pits or bulges are abreast arranged at a contractible arc edge. When a machined part is subjected to drawing modelling and then a contractible arc edge is formed, pits or bulges are added at the contractible arc edge, so that the contractible arc edge can be subjected to compensation, therefore, the occurrence of adverse phenomena such as folds or bulges and the like is effectively avoided, and the contractible arc edge can be subjected to one-time forming. In addition, a step is arranged at a bending angle. Through the addition of the step, the rebound amount can be controlled well when the contractible arc edge is bent.
Description
Technical field
The present invention relates to the cold punching technology processing technique field, be specifically related to a kind of contraction arc limit shaped structure.
Background technology
In the prior art; impact according to different processing technologys; contraction arc limit such as workpieces such as outer plate of automotive engine covers usually the bad phenomenon such as fold or projection can occur; as shown in Figure 1; not only affect the outward appearance of workpiece; also reduce mechanical strength and the service life of workpiece, even can have influence on being delivered for use of workpiece.Fold or projection etc. to occur bad for fear of shrinking the arc limit, usually can't once-forming, and need to adjust or correspondingly increase operation manufacturing procedure, thereby reduce work efficiency, improved tooling cost.
In addition, when carrying out bending process simultaneously on contraction arc limit, its rebound amount is larger, has affected processing characteristics, needs the multiple tracks trimming, therefore also is necessary to be improved and overcome.
Summary of the invention
The object of the present invention is to provide a kind of contraction arc limit shaped structure, can will shrink arc limit once-forming, and avoid the appearance of the bad phenomenon such as fold or projection, thereby enhance productivity, reduce production costs; And by improving further the effective control that realizes rebound amount.
To achieve these goals, the technical scheme of the present invention's proposition is:
Shrink arc limit shaped structure in a kind of cold punching technology processing, the place has been arranged side by side a plurality of depressions or protrusions on contraction arc limit.Workpiece carries out drawing modeling when form shrinking the arc limit, increases depressions or protrusions shrinking place, arc limit, can compensate shrinking the arc limit, thereby effectively avoid the appearance of the bad phenomenon such as fold or projection, make shrink the arc limit can once-forming.
As the further improved contraction arc limit shaped structure of the present invention, described depressions or protrusions are water-drop-shaped, and the arc sections of described water-drop-shaped depressions or protrusions is towards shrinking the arc limit, and the tip is shunk the arc limit dorsad.According to actual needs, can adjust the length of described water-drop-shaped depressions or protrusions tip, thereby avoid the appearance of the bad phenomenon such as fold or projection.
As the further improved contraction arc limit shaped structure of the present invention, also comprise the step that the bending angle place arranges.Rebound amount in the time of by setting up step contraction arc limit being bent is well controlled.
Contraction arc provided by the present invention limit shaped structure can will shrink arc limit once-forming, and avoid the appearance of the bad phenomenon such as fold or projection, thereby enhance productivity, and reduces production costs; And can effectively overcome the arc limit larger problem of rebound amount when carrying out bending process simultaneously of shrinking by setting up step.
Description of drawings
Fig. 1 shrinks arc limit workpiece pleated structure scheme drawing;
Fig. 2 has the mould structure scheme drawing that shrinks arc limit shaped structure;
Fig. 3 shrinks shaped structure bending angle place, arc limit structural representation;
Fig. 4 shrinks the ledge structure scheme drawing at shaped structure bending angle place, arc limit;
Fig. 5, the water-drop-shaped structural representation of depressions or protrusions.
1 for shrinking the arc limit, and 2 is fold, and 3 is depressions or protrusions, and 4 is bending angle, and 5 is step.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples the present invention is done to describe in further detail, this embodiment only is used for explaining the present invention, does not consist of the restriction to protection domain of the present invention.
Shown in Fig. 1-5, shrink arc limit shaped structure in the cold punching technology processing that present embodiment provides, 1 place, arc limit has been arranged side by side a plurality of depressions or protrusions 3 in contraction.Workpiece carries out drawing modeling when form shrinking arc limit 1, increases depressions or protrusions 3 shrinking place, arc limit 1, can compensate shrinking arc limit 1, thereby effectively avoid the appearance of the bad phenomenon such as fold or projection, make shrink arc limit 1 can once-forming.
Further improve as present embodiment, described depressions or protrusions 3 are water-drop-shaped, and the arc sections of described water-drop-shaped depressions or protrusions 3 is towards shrinking arc limit 1, and the tip is shunk arc limit 1 dorsad.According to actual needs, can adjust the length of described water-drop-shaped depressions or protrusions 3 tips, thereby avoid the appearance of the bad phenomenon such as fold or projection.
Further improve as present embodiment, described contraction arc limit 1 shaped structure also comprises the step 5 that bending angle 4 places arrange.Rebound amount when step 5 can make contraction arc limit 1 bend is well controlled.
Claims (3)
1. shrink arc limit shaped structure in a cold punching technology processing, it is characterized in that: locate to be arranged side by side a plurality of depressions or protrusions (3) on contraction arc limit (1).
2. contraction arc according to claim 1 limit shaped structure, it is characterized in that: described depressions or protrusions (3) are water-drop-shaped, and the arc sections of described water-drop-shaped depressions or protrusions (3) is towards shrinking arc limit (1), the tip is shunk arc limit (1) dorsad.
3. contraction arc according to claim 1 limit shaped structure is characterized in that: also comprise the step (5) that bending angle (4) is located to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547320XA CN102991585A (en) | 2012-12-17 | 2012-12-17 | Contractible arc edge forming structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547320XA CN102991585A (en) | 2012-12-17 | 2012-12-17 | Contractible arc edge forming structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102991585A true CN102991585A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210547320XA Pending CN102991585A (en) | 2012-12-17 | 2012-12-17 | Contractible arc edge forming structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102991585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201931A (en) * | 2018-09-04 | 2019-01-15 | 赛科利（南京）汽车模具技术应用有限公司 | A kind of automobile outer door panel flanging print processing method |
| CN110290657A (en) * | 2019-06-27 | 2019-09-27 | Oppo广东移动通信有限公司 | Housing unit and preparation method thereof and electronic equipment |
-
2012
- 2012-12-17 CN CN201210547320XA patent/CN102991585A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201931A (en) * | 2018-09-04 | 2019-01-15 | 赛科利（南京）汽车模具技术应用有限公司 | A kind of automobile outer door panel flanging print processing method |
| CN110290657A (en) * | 2019-06-27 | 2019-09-27 | Oppo广东移动通信有限公司 | Housing unit and preparation method thereof and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |