CN103894491A - Die with avoiding structure - Google Patents
Die with avoiding structure Download PDFInfo
- Publication number
- CN103894491A CN103894491A CN201410130883.8A CN201410130883A CN103894491A CN 103894491 A CN103894491 A CN 103894491A CN 201410130883 A CN201410130883 A CN 201410130883A CN 103894491 A CN103894491 A CN 103894491A
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- allow
- strength steel
- stamping parts
- die
- mould
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Abstract
The invention discloses a die with an avoiding structure and belongs to the technical field of dies. The die with the avoiding structure is designed in order to solve the problems that an existing die rebounds in the process of high-strength steel stamping formation, forming precision and quality of high-strength steel plate stampings are reduced and the like. The die with the avoiding structure comprises upper die inserts and a lower die insert, an avoiding portion is arranged at the bend forming position of the lower die insert, and a gap is formed between the avoiding portion and the a stamping. Rebound in the process of high-strength steel stamping formation is effectively controlled, and forming precision and quality of the high-strength steel plate stampings are improved.
Description
Technical field
The present invention relates to a kind of have allow the mould of hollow structure, belong to technical field of mold.
Background technology
Along with the development of automobile industry, loss of weight consumption reduction and raising security become the Main Trends of The Development of auto manufacturing, in order to realize automotive energy-saving emission-reducing, the high multiple target that waits of security, starts the high strength steel that uses in enormous quantities in auto industry, but this class high strength steel toughness is strong, in the process of employing mould punching body of a motor car part, high strength steel sheet material can produce rebound phenomenon, causes the angle that can not reach predetermined, affect the formed precision of part, cause part quality significantly to decline.
Summary of the invention
The object of the invention is to propose a kind of have allow the mould of hollow structure, can effectively control the rebound phenomenon in high-strength steel stamping parts forming process, improve formed precision and the quality of high strength steel plate stamping parts.
For reaching this object, the present invention by the following technical solutions:
The invention provides a kind of have allow the mould of hollow structure, comprise that patrix is inserted and counterdie is inserted, the bending forming place that described counterdie is inserted is provided with the sky portion that allows, described in allow and be formed with gap between sky portion and stamping parts.
Further, described in, allow the bending angle of sky portion reserve 3-6 ° than the default bending angle of described stamping parts.
Further, described in, allow the bending angle of sky portion reserve 5 ° than the default bending angle of described stamping parts.
Further, described patrix insert and holding pad between the gap that forms be 0.4-0.5mm.
Further, described patrix insert and holding pad between the gap that forms be 0.45mm.
Beneficial effect of the present invention is:
(1) the invention provides a kind of have allow the mould of hollow structure, the bending forming place that counterdie is inserted is provided with the sky portion that allows, allow sky portion be between stamping parts and counterdie are inserted form gap, effectively control the rebound phenomenon in high-strength steel stamping parts forming process, improved formed precision and the quality of high strength steel plate stamping parts.
(2) allow the bending angle of sky portion reserve 3-6 ° than the default bending angle of stamping parts, make the high-strength steel sheet material can be to lower mould direction along bending forming fillet surplus campaign, the design of this structure have reduced the flange resilience amount after the vertical flange moulding of high-strength steel stamping parts.
Accompanying drawing explanation
Fig. 1 is that having of providing of the embodiment of the present invention one allows the structural representation of mould of hollow structure;
Fig. 2 is the structural representation of the qualified stamping parts that provides of the embodiment of the present invention one;
Fig. 3 is the structural representation of the stamping parts of the generation rebound phenomenon that provides of the embodiment of the present invention one.
In figure, 1, patrix inserts; 2, counterdie is inserted; 3, allow sky portion; 4, stamping parts; 5, holding pad.
The specific embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by the specific embodiment.
Embodiment mono-:
The present embodiment provide a kind of have allow the mould of hollow structure, as shown in Figure 1-Figure 3, it comprise patrix insert 1 and counterdie insert 2, insert 2 bending forming place of counterdie is provided with the sky portion 3 that allows, allow and be formed with gap between sky portion 3 and stamping parts 4, the setting in this gap can make stamping parts bending forming reach predetermined bending angle, has effectively controlled the rebound phenomenon in high-strength steel stamping parts forming process, has improved formed precision and the quality of high strength steel plate stamping parts.
The gap length of sky portion 3 can be designed by the springback capacity after to stamping parts moulding according to high-strength steel performance and stamping parts shape.
In the present embodiment, allow sky portion 3 be designed to bending structure, its bending angle reserves 3-6 ° than the default bending angle of stamping parts 4, the present embodiment is preferred, allow the bending angle of sky portion 3 reserve 5 ° than the default bending angle of stamping parts 4, make the high-strength steel sheet material can be to lower mould direction along bending forming fillet surplus campaign, the design of this structure have reduced the flange resilience amount after the vertical flange moulding of high-strength steel stamping parts.
In addition, in the present embodiment, for prevent mould be heated after die holder spalling or make to insert be subject to squeeze distortion, therefore, patrix insert 1 and holding pad 5 between be formed with gap, gap is 0.4-0.5mm.Preferably, patrix insert 1 and holding pad 5 between form gap be 0.45mm.
The sky portion that allows of the present invention is not limited to above-mentioned bending structure, can also allow hollow structure for other, between mould and stamping parts product, there is gap as long as make, can effectively control the rebound phenomenon that high-strength steel stamping parts produces in forming process, in addition, patrix insert and holding pad between the gap length that forms can design according to inserting of different size, for inserting of different size, this gap width difference.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (5)
1. one kind has and allows the mould of hollow structure, comprise that patrix is inserted (1) and counterdie is inserted (2), it is characterized in that: the insert bending forming place of (2) of described counterdie is provided with the sky portion (3) that allows, described in allow and be formed with gap between sky portion (3) and stamping parts (4).
According to claim 1 have allow the mould of hollow structure, it is characterized in that: described in allow the bending angle of sky portion (3) reserve 3-6 ° than the default bending angle of described stamping parts (4).
According to claim 2 have allow the mould of hollow structure, it is characterized in that: described in allow the bending angle of sky portion (3) reserve 5 ° than the default bending angle of described stamping parts (4).
4. according to claim 1-3, arbitrary described having allows the mould of hollow structure, it is characterized in that: described patrix insert (1) with holding pad (5) between the gap of formation be 0.4-0.5mm.
According to claim 4 have allow the mould of hollow structure, it is characterized in that: described patrix insert (1) and holding pad (5) between the gap that forms be 0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130883.8A CN103894491A (en) | 2014-04-02 | 2014-04-02 | Die with avoiding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130883.8A CN103894491A (en) | 2014-04-02 | 2014-04-02 | Die with avoiding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103894491A true CN103894491A (en) | 2014-07-02 |
Family
ID=50986239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410130883.8A Pending CN103894491A (en) | 2014-04-02 | 2014-04-02 | Die with avoiding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103894491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007969A (en) * | 2020-07-08 | 2020-12-01 | 中国第一汽车股份有限公司 | Springback control method for high-strength steel plate side shaping process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602167A (en) * | 2009-02-13 | 2009-12-16 | 保定天威集团有限公司 | The preparation method of blank flange and mould |
| CN102274893A (en) * | 2011-06-30 | 2011-12-14 | 厦门科鑫电子有限公司 | Novel reshaping mould |
| CN102489609A (en) * | 2011-12-09 | 2012-06-13 | 苏州市天烨机械工程有限公司 | Anti-resilience bending die |
| CN204018515U (en) * | 2014-04-02 | 2014-12-17 | 昆山达亚汽车零部件有限公司 | A kind of have allow the mould of hollow structure |
-
2014
- 2014-04-02 CN CN201410130883.8A patent/CN103894491A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602167A (en) * | 2009-02-13 | 2009-12-16 | 保定天威集团有限公司 | The preparation method of blank flange and mould |
| CN102274893A (en) * | 2011-06-30 | 2011-12-14 | 厦门科鑫电子有限公司 | Novel reshaping mould |
| CN102489609A (en) * | 2011-12-09 | 2012-06-13 | 苏州市天烨机械工程有限公司 | Anti-resilience bending die |
| CN204018515U (en) * | 2014-04-02 | 2014-12-17 | 昆山达亚汽车零部件有限公司 | A kind of have allow the mould of hollow structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007969A (en) * | 2020-07-08 | 2020-12-01 | 中国第一汽车股份有限公司 | Springback control method for high-strength steel plate side shaping process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |