CN105921621A - Drawing method and drawing mould for U-shaped drawn component - Google Patents
Drawing method and drawing mould for U-shaped drawn component Download PDFInfo
- Publication number
- CN105921621A CN105921621A CN201610398521.6A CN201610398521A CN105921621A CN 105921621 A CN105921621 A CN 105921621A CN 201610398521 A CN201610398521 A CN 201610398521A CN 105921621 A CN105921621 A CN 105921621A
- Authority
- CN
- China
- Prior art keywords
- drawing process
- tensioning member
- die
- fixing plate
- punch fixing
- 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.)
- Pending
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a drawing method for a U-shaped drawn component. During a drawing process, only two long edges of a preformed material are separately provided with pressing materials. According to the drawing method, during the drawing process, only the two long edges of the preformed material are separately provided with the pressing materials to form pressing ribs, so that phenomena of corrugation and deformation do not happen on the two ends of the drawing-moulded U-shaped drawn component; and the problems of poor flatness and corrugation of the U-shaped drawn component are effectively improved.
Description
Technical field
The present invention relates to Machining Technology field, be specifically related to a kind of U-shaped tensioning member drawing process and stretching
Mould.
Background technology
Current hardware products, has increasing product needed to stretch.Past for slender U-shaped construction stretch part
Toward there is wrinkling and that flatness is bad problem.By using negative clearance to draw on mould structure in prior art
Stretch, in drawing die, add nitrogen spring to increase the mode such as material pressure-plate-force during stretching, but improve effect
Fruit is the best, it is impossible to well solving material flowability problem, some position of stretching structure needs material very
Good flowing, some position need not material flowing, and existing mold structure can't resolve this point.Existing skill
Art adds beading also by region, product edge, is used for preventing material from running, but is illustrated in figure 1
Cut the stretched parts after beading, at the two ends circular arc of the slender U-shaped stretching structure 52 that surrounding beading is formed still
So there will be this week, it is impossible to meet planarity requirements.
Summary of the invention
The technical problem to be solved is: offer is a kind of simply, can be effectively improved U-shaped tensioning member
The drawing process of the bad and wrinkling problem of flatness and a kind of corresponding drawing die of offer.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of U-shaped tensioning member stretches
Method, is included in drawing process, and the only two long limits at preforming material are respectively provided with binder.
The present invention also provides for a kind of drawing die, including part of the upper die and part of the lower die, described upper mold portion subpackage
Include stripper plate and punch fixing plate, described stripper plate is provided with the flange projection for beading, described lower mold
Part is provided with the groove corresponding with described flange projection, and described punch fixing plate is provided with drift, and it is special
Levying and be, only two long sides at drift are provided with described flange projection and groove.
The beneficial effects of the present invention is: by drawing process is only respectively provided with on the long limit of preforming material two
Binder and to preforming material apply pressure, make the U-shaped tensioning member two ends after drawing and forming there is no fold and change
Shape phenomenon, effectively improves the bad and wrinkling problem of U-shaped tensioning member flatness；And structure is simpler, behaviour
Facilitate.
Accompanying drawing explanation
Fig. 1 is U-shaped tensioning member structural representation；
Fig. 2 is the front schematic diagram of mould Guan Bi in the present invention U-shaped tensioning member drawing process；
Fig. 3 is the of completely closed rear schematic diagram of mould in the present invention U-shaped tensioning member drawing process；
Fig. 4 is the front partial schematic diagram of mould Guan Bi in the present invention U-shaped tensioning member drawing process；
Fig. 5 is the of completely closed rear partial schematic diagram of mould in the present invention U-shaped tensioning member drawing process.
Label declaration:
1, drawing die；2, part of the upper die；21, punch fixing plate backboard；22, drift is solid
Determine plate；23, stripper pad；24, stripper plate；25, drift；26, nitrogen bullet
Spring；
3, part of the lower die；31, die；32, lower bolster；33, lower mold backboard；
34, groove；4, preforming material；5, the U-shaped tensioning member of rustless steel；51、
Beading；52, U-shaped stretching structure.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment also
Accompanying drawing is coordinated to be explained.
The design of most critical of the present invention is: by only setting respectively on the long limit of preforming material two in drawing process
Put binder and preforming material is applied pressure, make the U-shaped tensioning member after drawing and forming not have fold and deformation existing
As.
Refer to Fig. 1, a kind of U-shaped tensioning member drawing process, including in drawing process, only at preforming material
Two long limits be respectively provided with binder.
Further, described preforming material is stainless steel material.
Further, form beading first with described binder, then stretch.
Seen from the above description, form beading by the binder on first only long to preforming material two limit, be conducive to
Material flowing management and control, it is achieved in drawing process, the material on the long limit of preforming material two well flows, and two is short
The material on limit need not flowing.
Further, drawing die is provided with and preforming material is executed stressed nitrogen spring.
Seen from the above description, by increasing nitrogen spring, preforming material is applied pressure, be more beneficial for protecting
The flatness of card tensioning member.
A kind of drawing die, including part of the upper die and part of the lower die, described part of the upper die includes stripper plate and punching
Head fixed plate, described stripper plate is provided with the flange projection for beading, and described part of the lower die is provided with and institute
State the groove that flange projection is corresponding, described punch fixing plate is provided with drift, it is characterised in that only exist
Two long sides of drift are provided with described flange projection and groove.
Further, described part of the upper die also includes punch fixing plate backboard and nitrogen spring, described nitrogen bullet
Spring is arranged between punch fixing plate backboard and punch fixing plate.
Knowable to foregoing description, the beneficial effects of the present invention is: by drawing process only at preform
Expect that two long limits are respectively provided with binder and form muscle and use nitrogen spring that preforming material is applied pressure, make to draw
It is stretched into the U-shaped tensioning member after type and there is no fold and metaboly, effectively improve U-shaped tensioning member flatness not
Good and wrinkling problem；And structure is simpler, easy to operate.
Embodiment
Refer to Fig. 2, a kind of drawing die 1 that can be used for forming tensioning member, including part of the upper die 2 and lower mold
Part 3, part of the upper die includes punch fixing plate backboard 21, punch fixing plate 22, stripper pad 23, de-material
Plate 24, drift 25 and nitrogen spring 26 form, and described nitrogen spring is arranged on punch fixing plate backboard 21 He
Between punch fixing plate 22, described stripper plate 24 and stripper pad 23 are provided with a through hole, described drift 25
It is located at described through hole；Two flange projections for beading being oppositely arranged, institute it is provided with on described stripper plate
State two flange projections and be arranged on two long sides of two long sides of preformed tensioning member, i.e. drift.Under described
Mould part includes that lower bolster 32 and lower mold backboard 33, described lower bolster 32 are provided with and described flange projection 27
Corresponding groove and the die 31 corresponding with drift 25.Described drawing die 1 is only at drift 25
Two long sides are provided with described flange projection 27 and groove 34 (as shown in Figure 2), and do not set at short brink
Put flange projection 27 and groove 34.
Drawing process is described below as a example by the U-shaped tensioning member of rustless steel 5 stretching as in Figure 2-4.First,
The stainless steel material 4 of preforming is placed between stripper plate 24 and lower mold；Then, such as Fig. 2 and Fig. 4
Shown in, stripper pad and stripper plate are closed with lower bolster, utilizes binder (i.e. flange projection) at rustless steel
Forming beading 51 on preforming material, described beading 51 is formed at two long limits of the U-shaped tensioning member of preforming
Side；Finally, as shown in Figure 3 and Figure 5, lower pressure punch fixing plate backboard 21 and punch fixing plate 22, will punching
Head fixed plate and punch fixing plate backboard close with lower bolster, utilize drift to stretch preforming material,
Utilizing nitrogen spring 26 to press described drift 25 in drawing process, drift 25 and die 31 are by rustless steel
Preforming material 4 clamps, thus completes the stretching of the U-shaped stretching structure of rustless steel 52.Shown in Fig. 4 and Fig. 5
For the partial schematic diagram before and after punch. contact preforming material.Through the U-shaped stretching structure two that said method obtains
There is not fold in end, integral planar degree is effectively improved.
In sum, the present invention by drawing process is only respectively provided with on the long limit of preforming material two binder and
Use nitrogen spring that preforming material is applied pressure, make the U-shaped tensioning member two ends after drawing and forming there is no pleat
Wrinkle and metaboly, effectively improve the bad and wrinkling problem of U-shaped tensioning member flatness；And structure is simpler
Single, easy to operate.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every profit
The equivalents made by description of the invention and accompanying drawing content, or directly or indirectly it is used in relevant technology
Field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (6)
1. a U-shaped tensioning member drawing process, it is characterised in that: in drawing process, only at preforming material
Two long limits be respectively provided with binder.
One the most according to claim 1 U-shaped tensioning member drawing process, it is characterised in that: described pre-
Moulding material is stainless steel material.
One the most according to claim 1 and 2 U-shaped tensioning member drawing process, it is characterised in that: first
Utilize described binder to form beading, then stretch.
One the most according to claim 1 and 2 U-shaped tensioning member drawing process, it is characterised in that: draw
Stretch mould is provided with and preforming material is executed stressed nitrogen spring.
5. a drawing die, including part of the upper die and part of the lower die, described part of the upper die include stripper plate and
Punch fixing plate, described stripper plate is provided with the flange projection for beading, described part of the lower die be provided with
The groove that described flange projection is corresponding, described punch fixing plate is provided with drift, it is characterised in that only
Two long sides at drift are provided with described flange projection and groove.
Drawing die the most according to claim 5, it is characterised in that: described part of the upper die also includes punching
Head fixed plate backboard and nitrogen spring, described nitrogen spring is arranged on punch fixing plate backboard and punch fixing plate
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398521.6A CN105921621A (en) | 2016-06-06 | 2016-06-06 | Drawing method and drawing mould for U-shaped drawn component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398521.6A CN105921621A (en) | 2016-06-06 | 2016-06-06 | Drawing method and drawing mould for U-shaped drawn component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105921621A true CN105921621A (en) | 2016-09-07 |
Family
ID=56833455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610398521.6A Pending CN105921621A (en) | 2016-06-06 | 2016-06-06 | Drawing method and drawing mould for U-shaped drawn component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105921621A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU761075A1 (en) * | 1977-07-05 | 1980-09-07 | Zakhar S Khavin | Drawing die |
| CN101491819A (en) * | 2009-03-12 | 2009-07-29 | 长春三友汽车部件制造有限公司 | Sedan B-post high-strength plate cold stretching-forming die and technique |
| CN101873901A (en) * | 2007-11-30 | 2010-10-27 | 丰田自动车株式会社 | Mold for press apparatus, and open-drawing method |
| CN203725607U (en) * | 2013-12-31 | 2014-07-23 | 祥鑫科技股份有限公司 | Mold structure for dual-action stretching |
| CN204194603U (en) * | 2014-11-11 | 2015-03-11 | 芜湖福祥模具科技有限公司 | A kind of automobile B-pillar inner plate stretching die |
| CN204817691U (en) * | 2015-06-15 | 2015-12-02 | 深圳市翰星精技工业有限公司 | Template lacing wire subassembly |
-
2016
- 2016-06-06 CN CN201610398521.6A patent/CN105921621A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU761075A1 (en) * | 1977-07-05 | 1980-09-07 | Zakhar S Khavin | Drawing die |
| CN101873901A (en) * | 2007-11-30 | 2010-10-27 | 丰田自动车株式会社 | Mold for press apparatus, and open-drawing method |
| CN101491819A (en) * | 2009-03-12 | 2009-07-29 | 长春三友汽车部件制造有限公司 | Sedan B-post high-strength plate cold stretching-forming die and technique |
| CN203725607U (en) * | 2013-12-31 | 2014-07-23 | 祥鑫科技股份有限公司 | Mold structure for dual-action stretching |
| CN204194603U (en) * | 2014-11-11 | 2015-03-11 | 芜湖福祥模具科技有限公司 | A kind of automobile B-pillar inner plate stretching die |
| CN204817691U (en) * | 2015-06-15 | 2015-12-02 | 深圳市翰星精技工业有限公司 | Template lacing wire subassembly |
Non-Patent Citations (2)
| Title |
|---|
| 陈海军等: "氮气弹簧在拉延-成形模中的应用", 《科技咨询》 * |
| 黄小刚等: "探讨控制深拉延冲压件开裂和起皱问题的方法", 《科技风》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
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| RJ01 | Rejection of invention patent application after publication |