CN103203411B - Drawing die - Google Patents
Drawing die Download PDFInfo
- Publication number
- CN103203411B CN103203411B CN201310138651.2A CN201310138651A CN103203411B CN 103203411 B CN103203411 B CN 103203411B CN 201310138651 A CN201310138651 A CN 201310138651A CN 103203411 B CN103203411 B CN 103203411B
- Authority
- CN
- China
- Prior art keywords
- pushing block
- holding pad
- patrix
- counterdie
- briquetting
- 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.)
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- 239000000463 material Substances 0.000 claims description 28
- 239000007937 lozenge Substances 0.000 claims description 11
- 230000003872 anastomosis Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
The invention relates to the field of automobile manufacture dies, in particular to a drawing die comprising an upper die and a lower die. A pressure plate is arranged between the upper die and the lower die. The upper die is driven by a power mechanism to be close to or away from the lower die. A clamping unit used for clamping and fixing to-be-shaped plates is arranged on the pressure plate. A side moving unit is arranged on a lateral side of the pressure plate, and is used for driving the pressure plate to be spaced from a die core of the lower die along the horizontal direction. The clamping unit is used for firmly fixing the to-be-shaped plates on the pressure plate reliably. The pressure plate is driven by the side moving unit to draw the to-be-shaped plates along the horizontal direction to realize first drawing deformation of the to-be-shaped plates; and then the upper die moves downwards to contact with the die core of the lower die to press the to-be-shaped plates to realize second deformation of the to-be-shaped plates. The superposition of twice drawing deformations enables the to-be-shaped plates to have sufficient drawing amplitude, so that sufficient strength of finished products is guaranteed.
Description
Technical field
The present invention relates to automobile making cold punching die field, particularly drawing die.
Background technology
The outer covering piece of automobile adopts drawing operation to make, and drawing operation is the flow harden characteristic that make use of steel, and so-called flow harden characteristic refers to that metal is in cold conditions plastic deformation, makes the strengthening index of metal, as the raising such as yield point, hardness.At normal temperatures, remove external force after steel being stretched to strain, steel are after this processing, the length of steel increases, reduced, and elastic limit rises to and is equivalent to raw material strain, greatly improve elastic limit of materials, and strain rate is reduced, improve the rigidity of material.If but less the causing of steel stretch range is not stretched to strain and has just removed external force, the intensity of steel can be caused not enough.Just there is this problem in a lid of automobile and top cover, the shape sending out lid and top cover of usual automobile is comparatively mild, sheet material to be formed only needs a small amount of distortion just can be shaping, deformation extent is very little, that is stretch range is little, the steel hypometria after shaping, and rigidity is poor, very easily produce distortion, product quality is poor.
Summary of the invention
The object of this invention is to provide a kind of drawing abundant, the drawing die of product good rigidly.
For achieving the above object, present invention employs following technical scheme: a kind of drawing die, comprise upper die and lower die, holding pad is between upper die and lower die die holder, actuating unit drive patrix away from or near counterdie, holding pad is provided with the clamping unit for the sheet material to be formed that is fixedly clamped, the side of described holding pad is provided with and is displaced sideways unit, and this is displaced sideways unit drives holding pad in the horizontal direction away from counterdie core rod.
Owing to adopting above technical scheme, sheet material to be formed is fixed on holding pad by clamping unit reliably, being displaced sideways unit drives holding pad to stretch in the horizontal direction sheet material to be formed, realize the one-off drawing distortion of sheet material to be formed, then patrix moves downward and extrudes sheet material to be formed with counterdie core contact, sheet material generation secondary deformation to be formed, the superposition of twice stretcher strain makes sheet material to be formed have enough stretch amplitudes, thus ensures that the product obtained has enough intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is another state diagram of Fig. 1;
Fig. 4 is the partial enlarged drawing of Fig. 1.
Detailed description of the invention
As illustrated in fig. 1 and 2, a kind of drawing die, comprise patrix 10 and counterdie 20, holding pad 30 is between patrix 10 and counterdie 20, actuating unit drive patrix 10 away from or near counterdie 20, holding pad 30 is provided with the clamping unit for the sheet material 40 to be formed that is fixedly clamped, the side of described holding pad 30 is provided with and is displaced sideways unit 50, and this is displaced sideways unit 50 and drives holding pad 30 in the horizontal direction away from counterdie core rod 21.Sheet material 40 to be formed is fixed on holding pad 30 by clamping unit reliably, being displaced sideways unit 50 drives holding pad to stretch in the horizontal direction sheet material 40 to be formed, realize the one-off drawing distortion of sheet material 40 to be formed, it is alternatively the prestretched being treated as based plate 40, then patrix 10 moves downward sheet material 40 to be formed with counterdie core rod 21 contact squeeze, sheet material generation secondary deformation to be formed, the superposition of twice stretcher strain makes sheet material 40 to be formed have enough stretch amplitudes, thus ensures that the product obtained has enough intensity.
Shown in Fig. 1,3 and 4, the described unit 50 that is displaced sideways comprises the wedge 51 be fixed on counterdie core rod 21 and the pushing block 31 being fixed on holding pad 30, the described lozenges 511 that wedge 51 is provided with from top to bottom, from-inner-to-outer is in tilted layout, the formation of vertically postponing downwards of the lower end of this lozenges 511 faces 512 directly, pushing block 31 is resisted against the lozenges 511 of wedge 51 or faces directly on 512, actuating unit drive patrix 10 away from or extruding pushing block 31.Wedge 51 is the equal of cut away a corner block structure in rectangular block upper end, and the cross section of wedge 51 is similar to rectangular pentagon.Patrix 10 moves downward extruding pushing block 31, lozenges 511 along wedge 51 after this pushing block 31 is subject to this downward active force moves, pushing block 31 creates the displacement of horizontal direction and vertical direction simultaneously, that is pushing block 31 moves towards the oblique below away from counterdie core rod 21 side, the movement of pushing block 31 has driven holding pad 30 to stretch sheet material 40 to be formed along horizontal direction, achieves the one-off drawing of sheet material 40 to be formed.Continuous movement progress block 31 along with patrix 10 move to lozenges 511 bottom after be resisted against on vertical plane 512, then pushing block 31 meetings along with patrix 10 mobile downwards vertically, no longer include the displacement of horizontal direction.Patrix 10 contacts with counterdie core rod 21, and patrix 10 continues to move down and carries out punching press sheet material 40 to be formed.
The top of described pushing block 31 is provided with the briquetting 11 be fixed on patrix 10, being slidably matched of moving horizontally is formed between this briquetting 11 and patrix 10, described pushing block 31 is provided with groove 311, briquetting 11 is provided with the projection 111 forming snap-fit engagement with groove 311, and described briquetting 11 and groove 311 are configured for being fixedly clamped the clamping unit of sheet material 40 to be formed.Briquetting 11 moves down extruding pushing block 31 gradually along with patrix 10, and pushing block 31 produces downward and outside displacement, and briquetting 11 is also along with pushing block 31 horizontal direction moves.Sheet material to be formed 40 when briquetting 11 extrudes pushing block 31 above groove 311 is by projection 111 crimp and be stuck between projection 111 and groove 311 firmly, therefore the movement of pushing block 31 drives the plate body of sheet material 40 to be formed between projection 111 and groove 311 to move, be the equal of that sheet material 40 to be formed is stretched laterally, achieve the prestretched action of sheet material 40 to be formed.
Described wedge 51 is positioned at the below of counterdie core rod 21 forming surface edge, the original space of Appropriate application mould, reduces the volume of mould.
The described rectangular frame structure of holding pad 30 and be around in the surrounding of counterdie core rod 21, the both sides that holding pad 30 is mutually corresponding are equipped with and are displaced sideways unit 50, the cross section of described holding pad 30 is stepped, pushing block 31 on step surface 32 and and form being slidably matched in horizontal direction between step surface 32, be provided with between pushing block 31 and holding pad 30 horizontal direction arrange Compress Spring 33.Holding pad 30 both sides be displaced sideways unit 50 respectively to both sides stretching plate 40, patrix 10 returns to initial position away from holding pad 30 after counterdie 20 under the effect of Compress Spring 30 restoring force.
As shown in Figure 2, the lower surface of described briquetting 11 is concave surface 112, and the upper surface of pushing block 31 is the convex surface 312 with concave surface 112 arc anastomosis.Concave surface 112 and convex surface 312 lay respectively on briquetting 11 and corresponding two faces of pushing block 31, because concave surface 112 and convex surface 312 contact surface bonded to each other are arc, so the sheet material to be formed 40 between occlusion concave surface 112 and convex surface 312 is compressed reliably, and can move horizontally along with pushing block 31 and briquetting 11, carry out stretching plate.
Described pushing block 31 is provided with the driving head 313 overhang to counterdie core rod 21 forming surface, and this driving head 313 is spherical and is resisted against the lozenges 511 of wedge 51 or faces directly on 512.Described pushing block 31 is provided with the driving head 313 overhang to counterdie core rod 21 forming surface, this driving head 313 is in the spherical and lozenges 511 being resisted against wedge 51 or on vertical plane 512, spherical driving head 313 can reduce friction, the motion track of driving head 313 and the forming surface of counterdie core rod 21 stagger, space below Appropriate application forming surface, reduces the volume of mould.
Be provided with slide plate 60 between described briquetting 11 and patrix 10, between pushing block 31 and step surface 32, be provided with slide plate 60.Slide plate 60 pairs of briquettings 11 or pushing block 31 play guide effect, can reduce sliding friction simultaneously, extend the mold use life-span, also can arrange slide plate 60 between patrix 10 and counterdie 20.In the present invention, slide plate 60 is that segmented interval is arranged, the flatness of the guarantee slide plate 60 that this structure can arrive very much, leads accurately for briquetting 11 or pushing block 31 provide, and also can reduce sliding friction simultaneously, extends the mold use life-span.
Claims (6)
1. a drawing die, it is characterized in that: comprise patrix (10) and counterdie (20), holding pad (30) is positioned between patrix (10) and counterdie (20), actuating unit drive patrix (10) away from or near counterdie (20), holding pad (30) is provided with the clamping unit for sheet material to be formed (40) that are fixedly clamped, the side of described holding pad (30) is provided with and is displaced sideways unit (50), and this is displaced sideways unit (50) and drives holding pad (30) in the horizontal direction away from counterdie core rod (21);
The described unit (50) that is displaced sideways comprises the wedge (51) be fixed on counterdie core rod (21) and the pushing block (31) being fixed on holding pad (30), described wedge (51) is provided with from top to bottom, the lozenges (511) that from-inner-to-outer is in tilted layout, the formation of vertically postponing downwards of the lower end of this lozenges (511) is faced directly (512), pushing block (31) is resisted against the lozenges (511) of wedge (51) or faces directly on (512), actuating unit drive patrix (10) away from or extruding pushing block (31),
The top of described pushing block (31) is provided with the briquetting (11) be fixed on patrix (10), being slidably matched of moving horizontally is formed between this briquetting (11) and patrix (10), described pushing block (31) is provided with groove (311), briquetting (11) is provided with the projection (111) forming snap-fit engagement with groove (311), and described briquetting (11) and groove (311) are configured for being fixedly clamped the clamping unit of sheet material to be formed (40).
2. drawing die according to claim 1, is characterized in that: described wedge (51) is positioned at the below of counterdie core rod (21) forming surface edge.
3. drawing die according to claim 1, it is characterized in that: described holding pad (30) rectangular frame structure and be around in the surrounding of counterdie core rod (21), the both sides that holding pad (30) is mutually corresponding are equipped with and are displaced sideways unit (50), the cross section of described holding pad (30) is stepped, pushing block (31) be positioned at step surface (32) upper and and form being slidably matched in horizontal direction between step surface (32), the Compress Spring (33) arranged in the horizontal direction is provided with between pushing block (31) and holding pad (30).
4. drawing die according to claim 1, it is characterized in that: the lower surface of described briquetting (11) is concave surface (112), the upper surface of pushing block (31) is the convex surface (312) with concave surface (112) arc anastomosis.
5. drawing die according to claim 2, it is characterized in that: described pushing block (31) is provided with the driving head (313) to counterdie core rod (21) forming surface of overhanging, this driving head (313) is in spherical and be resisted against the lozenges (511) of wedge (51) or face directly on (512).
6. drawing die according to claim 3, it is characterized in that: be provided with slide plate (60) between described briquetting (11) and patrix (10), between pushing block (31) and step surface (32), be provided with slide plate (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310138651.2A CN103203411B (en) | 2013-04-19 | 2013-04-19 | Drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310138651.2A CN103203411B (en) | 2013-04-19 | 2013-04-19 | Drawing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103203411A CN103203411A (en) | 2013-07-17 |
| CN103203411B true CN103203411B (en) | 2015-04-29 |
Family
ID=48750934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310138651.2A Active CN103203411B (en) | 2013-04-19 | 2013-04-19 | Drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103203411B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10486216B2 (en) * | 2016-10-17 | 2019-11-26 | Ford Motor Company | Draw die and binder lock |
| CN107088618B (en) * | 2017-06-28 | 2019-03-26 | 神龙汽车有限公司 | A kind of Wedge type extends drawing die in advance |
| CN110064695A (en) * | 2019-05-08 | 2019-07-30 | 瑞鹄汽车模具股份有限公司 | Improve the combination stretch pressing mold and its moulding process of outer covering piece rigidity |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523751A (en) * | 1991-07-16 | 1993-02-02 | Daihatsu Motor Co Ltd | Drawing die |
| DE69818010T2 (en) * | 1998-05-11 | 2004-06-09 | Umix Co. Ltd., Neyagawa | Drawing tool and pressing tool with a device for reducing the impact noise |
| JP4787548B2 (en) * | 2005-06-07 | 2011-10-05 | 株式会社アミノ | Thin plate forming method and apparatus |
| CN201482869U (en) * | 2009-06-30 | 2010-05-26 | 奇瑞汽车股份有限公司 | Novel drawing mold structure |
| CN101811160B (en) * | 2010-05-07 | 2012-05-23 | 上海交通大学 | Metal sheet pre-stretching mold |
| CN202070660U (en) * | 2010-12-24 | 2011-12-14 | 山东济宁车轮厂 | Finishing die of wheel made from section steel |
| CN202239233U (en) * | 2011-08-22 | 2012-05-30 | 亿森（上海）模具有限公司 | Mould for realizing drawn flanging molding |
| CN202263867U (en) * | 2011-10-31 | 2012-06-06 | 河南恒星钢缆有限公司 | Forming machine for anchor ends of mine anchors |
-
2013
- 2013-04-19 CN CN201310138651.2A patent/CN103203411B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103203411A (en) | 2013-07-17 |
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