CN105437604A - Pressing tool - Google Patents
Pressing tool Download PDFInfo
- Publication number
- CN105437604A CN105437604A CN201510606004.9A CN201510606004A CN105437604A CN 105437604 A CN105437604 A CN 105437604A CN 201510606004 A CN201510606004 A CN 201510606004A CN 105437604 A CN105437604 A CN 105437604A
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- metal forming
- forming part
- compression tool
- mould
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
-
- 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 provides a pressing tool for producing a molded plate. The pressing tool is provided with a first mould part having a first topological structure for a molded plate, and a second mould part having a second topological structure for molding the molded plate, wherein the first and second topological structures are coordinated in order to give the molded plate by moving together of the two mould parts under cooperation of the two topological structures a desired shape, and wherein one of the first and second topological structures a negative mold has and the other of the first and second topological structures a positive mold to press the molded plate for manufacturing the molded plate upon moving of the two tool parts in the negative mold. In order to produce on the molded plate sharply pronounced contours such sharp light edge or design lines, the positive mold to an elastic material to press the sheet metal part for manufacturing the molded plate the moving together of the two tool parts under elastic deformation of the molded plate in the negative mold.
Description
Technical field
The present invention relates to a kind of preamble according to claim 1 structure, for the manufacture of the compression tool (Presswerkzeug) of sheet metal forming part (Blechumformteil).
Background technology
Such as by the known a kind of compression tool starting mentioned type of file DE19621942C1.In this compression tool a mould part (Werkzeugteil) setting for the formation of the topological structure (Topografie) of sheet metal forming part have using the projection (Erhebung) of the form of rib or caking (Noppe) as formpiston (Positivform) setting of another mould part for the formation of sheet metal forming part topological structure there is former (formnegativ) relative with projection, using the recess (Ausnehmung) of the form of ditch or groove as former (Negativform), so that when these two mould parts are combined together under the acting in conjunction of projection and recess at the fine structure (Feinstruktur) of sheet metal forming part place structure with (Beulenf rmig) impression portion (Eindr ü ckung) of convex epirelief shape.
According to a design of this known compression tool, replace recess also can be provided with flexible filler (Einlage) in another mould part.So be pressed into by the pressure of projection at the filler of forming process (Umformprozess) Elastic, thus convex epirelief shape plate material can be placed in these impression portions in flexible filler.
Recently, arrange more at outer casing member (sheet metal forming part) place of automobile body with the design element of the form of sharp-pointed light rib (Lichtkante) or design lines (Designlinie) (the whirlwind line (Tornadolinie) such as outside it or in viewable side).If should utilize now the outer casing member as manufactured by compression tool known in file DE19621942C1, the radius of the seamed edge of the convex be so shaped on the outside of outer casing member forms not being small enough to make the sharp-pointed light rib or design lines that conform to quality requirements.
This in addition based on: in the sharp-pointed structure of so required profile of the formpiston elastic filler acting in conjunction of structure former (its with), in forming area, produce stronger stretch bending load (Streckbiegebelastung), it causes plate material to start surrender in advance.Result, due to the sharp-pointed profile (as drift seamed edge (Stempelkante) that is sharp-pointed or that be provided with less outer radius) of formpiston, in forming area, the strength of materials (Materialst rke) of plate material is weakened and the sharp-pointed profile of formpiston is moulded insufficiently on the side (outside or viewable side) of plate back to formpiston.
Summary of the invention
The object of the invention is the compression tool of preamble according to claim 1 to be modified into and makes can manufacture at sheet metal forming part place the profile (as sharp-pointed light rib or design lines) seeming more sharp-pointed with this.
This utilizes compression tool according to claim 1 to realize.Limit improvement project of the present invention in the dependent claims.
According to the present invention, compression tool has the first mould part and the second mould part to manufacture sheet metal forming part.First mould part has the first topological structure for being formed sheet metal forming part by plate, and the second mould part has the second topological structure for the formation of sheet metal forming part.First the second topological structure is coordinated with each other, that is such as roughly or approximately to construct, so that by these two mould parts being combined together the shape providing expectation under the acting in conjunction of these two topological structures to sheet metal forming part complimentary to one anotherly.One in first and second topological structures has former, and another in the first and second topological structures has formpiston, to be pressed onto by plate in former when being combined together by these two mould parts to manufacture sheet metal forming part.Compression tool according to the present invention is characterised in that, the flexible material of female mold, under the elastic deformation when being combined together by these two mould parts at elastomeric material to be pressed onto in former plate to manufacture sheet metal forming part.
In meaning of the present invention, the first and second topological structures are formed by the corresponding face (it participates in the shaping of sheet metal forming part under the contact of plate) of the first and second mould parts and are had such as outer radius, inside radius, projection or projection, recess or recessed and/or flat section etc. according to the shape of the expectation of sheet metal forming part.
In meaning of the present invention, the projection in corresponding topological structure or projection are seen as formpiston and to this recess relative with formpiston or the recessed former be seen as holding formpiston.
According to the present invention, flexible elastomeric material is arranged on formpiston place, thus plate can be pressed in former by formpiston under the elastic deformation of elastomeric material, to manufacture sheet metal forming part.By the elastic deformation of elastomeric material, formpiston clings to the surface of plate in forming area in contact area increase situation, thus plate can be pressed in former under the effect of high frictional force between elastomeric material and plate best.In other words, only specify to treat to be in profile that cavity side produces and formpiston mates former in forming process at sheet metal forming part according to former of the present invention.
When avoiding haling in forming area to stretch bend loading and therefore therefore also the profile (as sharp-pointed light rib or design lines) seeming more sharp-pointed can be manufactured at sheet metal forming part place when avoiding plate material in forming area to start in advance surrendering and the strength of materials of plate material weakens.
According to a form of implementation of the present invention, elastomeric material has polymeric material.Preferably, elastomeric material has elastomeric material and especially has elastomeric material, such as Rubber materials.
According to another form of implementation of the present invention, elastomeric material is inserted in the basic material of the mould part being provided with formpiston as insert (Einsatzteil).Simple and the firm structure which ensure that compression tool and the simple convertibility of formpiston of such as wearing and tearing.Preferably, based on this first and second mould part, material has metal material, such as Steel material and/or cast iron materials respectively.
According to another form of implementation of the present invention, the insert formed with elastomeric material is configured to bar shaped (Lesitenf rmig) and is inserted into make the longitudinal edge section of insert to protract predetermined amount, especially 2mm to 10mm and preferably 2mm to 5mm from the basic material of mould part in the basic material of the mould part being provided with formpiston.Due to the design of the bar shaped of insert, can also provide according to formpiston of the present invention for the former extended in a straightforward manner.The extruding force in forming area of former and formpiston can set advantageous by the suitable size of the front-extending quantity of insert at this.
According to a form of implementation of the present invention, former have inside radius with when the planar side (Flaechenseite) of sheet metal forming part upper form convex seamed edge and formpiston have the outer radius that formed by elastomeric material with the inside radius when outer radius elastic deformation is to form seamed edge, plate being pressed onto former when being combined together by these two mould parts in manufacture sheet metal forming part.
According to another form of implementation of the present invention, compression tool is set up for realizing deep-draw process (Tiefziehvorgang) at plate place, wherein, the first mould part is configured to drift and in its first topological structure, has formpiston and the second mould part is configured to die (Matrize) and have former in its second topological structure.
According to another form of implementation of the present invention, sheet metal forming part is set to the outer casing member of automobile body, and wherein, former and formpiston are configured to be formed the design lines of prism shape or the light rib seamed edge as convex on the outside of sheet metal forming part.
The present invention also clearly extends in such form of implementation, and it is not by being drawn the Feature Combination formed provided by clearly returning of claim, as long as this meaningfully technically can combine arbitrarily mutually to this disclosed feature of the present invention.
Accompanying drawing explanation
The preferred form of implementation of following basis and the present invention is described with reference to accompanying drawing.Wherein:
The plate that Fig. 1 shows the compression tool according to a form of implementation of the present invention in the state be separated from each other with the sectional view of side direction and is placed in compression tool.
The compression tool that Fig. 2 shows the Fig. 1 in the state be combined together with the sectional view of side direction and the sheet metal forming part formed by plate.
Fig. 3 describes the insufficient problem of moulding becoming the formpiston of sharp profile on the side of formpiston at sheet metal forming part with the sectional view of the side direction of amplifying.
List of numerals
1 compression tool
10 first mould parts
11 first topological structures
12 formpistons
12'' formpiston
20 elastomeric materials
30 second mould parts
31 second topological structures
32 formers
B plate
B' sheet metal forming part
B'' contrasts sheet metal forming part
K' seamed edge
K'' seamed edge.
Detailed description of the invention
Next referring to figs. 1 to 3, compression tool 1 according to a form of implementation of the present invention is described.
Compression tool 1 is set up to the sheet metal forming part B' being manufactured the shape with expectation by the plate B be such as made up of aluminium or steel of slab shape when performing deep-draw process.In current form of implementation sheet metal forming part B' as automobile body outer casing member (not completely shown) and especially arrange as the outer casing member of the vehicle side door of automobile body.
Compression tool 1 has the second mould part 30 of the die of the first mould part 10 of the drift of the formation compression tool 1 of bottom and the formation compression tool 1 on top.Fig. 1 there is shown herein these two mould parts 10,30 in the state be separated from each other, and wherein, preformed plate B is arranged in mould part 10, is placed in compression tool 1 between 30.And Fig. 2 shows these two mould parts 10,30 in the state be combined together, in-between with the sheet metal forming part B' be brought in the shape of expectation.
The first topological structure 11 that first mould part (drift) 10 constructs with having roughly convex ground or positive shape is for the formation of sheet metal forming part B'.Second mould part (die) 30 have roughly in concave shape or cloudy shape the second topological structure 31 of constructing for the formation of sheet metal forming part B'.First topological structure 11 and the second topological structure 31 coordinated with each other, that is roughly or approximately to construct complimentary to one anotherly, to pass through as shown in Figure 2 by these two mould parts 10,30 are combined together the shape providing expectation under the acting in conjunction of these two topological structures 11,31 to sheet metal forming part B'.
Second mould part 30 has the former 32 with less inside radius in its second topological structure 31, so as the planar side (later outside or viewable side) of sheet metal forming part B' upper form seamed edge K' with the convex of less outer radius and especially the design lines of prism shape or light rib, as whirlwind line.First mould part 10 have in its first topological structure 11 formed with elastomeric material 20, with the formpiston 12 of outer radius, plate B is pressed onto in the inside radius of former 32 for the manufacture of sheet metal forming part B' when the elastic deformation of the outer radius formed by elastomeric material 20 is to form seamed edge K' when these two mould parts 10,30 are combined together.
As seen from Figure 1, the outer radius of formpiston 12 is greater than the inside radius of former 32.In other words, according to the present invention, the inside radius of the former 32 of the second mould part (die) 30 specifies design lines or the light rib of seamed edge K'(prism shape on the outside or viewable side of sheet metal forming part B') brief (Pr gnanz) or seem sharp-pointed profile.
First and second mould parts 10, based on 30, material manufactures with metal material (as Steel material/or cast iron materials) respectively.Elastomeric material 20 to be inserted in the basic material of the first mould part 10 elastomeric material 20 of the bar shaped (longitudinally extend perpendicular to plan) as the insert of bar shaped, thus the amount that the longitudinal edge section of the outer radius of the restriction formpiston 12 of insert protracts predetermined from the basic material of the first mould part 10 (such as 2mm to 10mm and preferably 2mm to 5mm).According to the present invention, elastomeric material 20 is polymeric material and especially elastomeric material.Preferably, elastomeric material 20 are elastomeric materials, especially as Rubber materials.
By these two mould parts 10,30 when being incorporated in state as shown in Figure 2, the outer radius of the flexibility of the formpiston 12 of the first mould part 10 (drift) (flexible drift seamed edge) will be depressed into the brief of the regulation seamed edge K' of the former 32 of the second mould part (die) 30 or seem sharp-pointed in the inside radius of profile, to manufacture sheet metal forming part B' under the effect of the high frictional force of plate B between elastomeric material 20 and plate B in the elastic deformation of the outer radius of formpiston 12.
Fig. 3 is in order to comparative descriptions, if the brief of seamed edge K'' is realized by sharp-pointed profile, less overall diameter (sharp-pointed drift seamed edge) as formpiston 12'' as conventional, the design lines of the seamed edge K''(prism shape that the outside or viewable side of contrast sheet metal forming part B'' produce or light rib) problem of inadequate brief or excessive overall diameter.
As seen from Figure 3, produce strong stretch bending load by the sharp-pointed profile of formpiston 12'' in forming area, it causes plate material (herein such as aluminium) to start surrender in advance.Thus in contrast sheet metal forming part B'', in forming area, the strength of materials of plate material is weakened about 1/3rd and the overall diameter of the seamed edge K'' manufactured on the outside or viewable side of contrast sheet metal forming part B'' is greater than the overall diameter of formpiston 12''.As a result, the seamed edge K'' of contrast sheet metal forming part B'' place manufacture do not have enough briefly or enough sharp-pointed profile so that the quality requirement of light rib to sharp-pointed or design lines can be met.
Claims (10)
1. the compression tool for the manufacture of sheet metal forming part (B') (1), it is with the first mould part (10), and it has the first topological structure (11) for being formed described sheet metal forming part (B') by plate (B), and second mould part (30), it has the second topological structure (31) for the formation of described sheet metal forming part (B'), wherein, first and second topological structures (11, 31) coordinated with each other, to pass through these two mould parts (10, 30) be combined together at these two topological structures (11, 31) provide the shape of expectation under acting in conjunction described sheet metal forming part (B'), and wherein, one in first and second topological structures (31) has former (32) and another in the first and second topological structures (11) has formpiston (12), so that by these two mould parts (10, 30) described plate (B) is pressed onto in described former (32) for the manufacture of described sheet metal forming part (B') when being combined together, it is characterized in that, described formpiston (12) has elastomeric material (20), so that by these two mould parts (10, 30) described plate (B) is pressed onto in former (32) for the manufacture of described sheet metal forming part (B') under the elastic deformation of described elastomeric material (20) when being combined together.
2. compression tool according to claim 1 (1), wherein, described elastomeric material (20) is polymeric material.
3. compression tool according to claim 1 and 2 (1), wherein, described elastomeric material (20) is elastomeric material.
4. the compression tool (1) according to any one of claim 1-3, wherein, described elastomeric material (20) is elastomeric material.
5. the compression tool (1) according to any one of claim 1-4, wherein, described elastomeric material (20) is inserted in the basic material of the mould part (10) being provided with described formpiston (12) as insert.
6. compression tool according to claim 5 (1), wherein, based on the first and second mould parts (10,30), material has metal material respectively.
7. the compression tool (1) according to claim 5 or 6, wherein, the described insert formed with described elastomeric material (20) is configured to bar shaped and is inserted in the basic material of the mould part (10) being provided with described formpiston (12) the longitudinal edge section of described insert is protracted predetermined amount from the basic material of described mould part (10).
8. the compression tool (1) according to any one of claim 1-7, wherein, described former (32) has inside radius, to form the seamed edge (K') of convex in the planar side of described sheet metal forming part (B'), and wherein, described formpiston (12) has the outer radius formed by described elastomeric material (20), so that by these two mould parts (10, 30) when described outer radius elastic deformation is to form described seamed edge (K'), described plate (B) is pressed onto in the inside radius of described former (32) for the manufacture of described sheet metal forming part (B') when being combined together.
9. the compression tool (1) according to any one of claim 1-8, wherein, described compression tool (1) is set up for realizing deep-draw process at described plate (B) place, wherein, described first mould part (10) is configured to drift and has described formpiston (12) in its first topological structure (11), and wherein, described second mould part (30) is configured to die and has described former (32) in its second topological structure (31).
10. the compression tool (1) according to any one of claim 1-9, wherein, described sheet metal forming part (B') is set to the outer casing member of automobile body, and wherein, described former (32) and described formpiston (12) are configured to the design lines forming prism shape on the outside of described sheet metal forming part (B').
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014219021.5A DE102014219021A1 (en) | 2014-09-22 | 2014-09-22 | press tool |
| DE102014219021.5 | 2014-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437604A true CN105437604A (en) | 2016-03-30 |
| CN105437604B CN105437604B (en) | 2020-07-17 |
Family
ID=53969274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510606004.9A Active CN105437604B (en) | 2014-09-22 | 2015-09-22 | Extrusion tool |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2998042B1 (en) |
| CN (1) | CN105437604B (en) |
| DE (1) | DE102014219021A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502296A (en) * | 2019-10-02 | 2022-05-13 | 杰富意钢铁株式会社 | Method and apparatus for press forming outer panel for automobile |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6798380B2 (en) * | 2017-03-22 | 2020-12-09 | 日本製鉄株式会社 | Manufacturing equipment and manufacturing method for panels with character lines |
| JP6750596B2 (en) * | 2017-11-27 | 2020-09-02 | Ｊｆｅスチール株式会社 | Mold shape determination method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601423A1 (en) * | 1976-01-15 | 1977-07-21 | Uniplanung Gmbh & Co Kg | Deep drawing stainless steel sink bowls - using two draws and tools preventing tearing of the steel sheet |
| DE3715201A1 (en) * | 1987-05-07 | 1988-11-17 | Kloeckner Humboldt Deutz Ag | Shaping tool for the three-dimensional deformation of metal parts |
| GB2208619A (en) * | 1987-08-15 | 1989-04-12 | Austin Rover Group | A sheet metal forming tool and methods of making and using same |
| DE19621942C1 (en) * | 1996-05-31 | 1997-04-03 | Daimler Benz Ag | Finely structured vehicle structural component mfg. process |
| CN102802830A (en) * | 2009-10-30 | 2012-11-28 | 本田技研工业株式会社 | Scrap shape retention |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9115717D0 (en) * | 1991-07-20 | 1991-09-04 | Lawson Mardon M I Ltd | Sheet metal forming tool and method |
| JP2000312924A (en) * | 1999-04-30 | 2000-11-14 | Kikuchiseisakusho Co Ltd | Work corner edge molding |
| DE10324244A1 (en) * | 2003-05-28 | 2004-12-30 | Bayerische Motoren Werke Ag | Process for the production of individualized outer skin sheet metal parts from series production of outer skin sheet metal parts for vehicles as well as outer skin sheet metal parts manufactured according to this process |
| DE102004007556A1 (en) * | 2004-02-17 | 2005-12-01 | Bayerische Motoren Werke Ag | Automobile body parts e.g. mudguard , pressing device, has deforming tool arranged in one of recesses, and sheet metal component formed in one of recesses by deforming tool procedure in another recess relative to one of tool part |
| DE102005036377B4 (en) * | 2005-07-29 | 2008-05-08 | Fachhochschule Hannover | Device and method for shaping a workpiece |
| DE102009035680A1 (en) * | 2009-07-30 | 2011-03-17 | Alcan Technology & Management Ag | Device for forming thermoformed containers |
| US8683836B2 (en) * | 2011-07-29 | 2014-04-01 | Ford Global Technologies, Llc | Method and apparatus for forming sharp styling lines on metal panels |
| DE102011115219B4 (en) * | 2011-09-24 | 2020-11-05 | Audi Ag | Method and device for producing a sheet metal part avoiding trailing edges |
| DE102013007352A1 (en) * | 2013-04-27 | 2014-10-30 | Audi Ag | Method and tool for forming an edge on a sheet metal part |
-
2014
- 2014-09-22 DE DE102014219021.5A patent/DE102014219021A1/en not_active Withdrawn
-
2015
- 2015-08-24 EP EP15182161.8A patent/EP2998042B1/en active Active
- 2015-09-22 CN CN201510606004.9A patent/CN105437604B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601423A1 (en) * | 1976-01-15 | 1977-07-21 | Uniplanung Gmbh & Co Kg | Deep drawing stainless steel sink bowls - using two draws and tools preventing tearing of the steel sheet |
| DE3715201A1 (en) * | 1987-05-07 | 1988-11-17 | Kloeckner Humboldt Deutz Ag | Shaping tool for the three-dimensional deformation of metal parts |
| GB2208619A (en) * | 1987-08-15 | 1989-04-12 | Austin Rover Group | A sheet metal forming tool and methods of making and using same |
| DE19621942C1 (en) * | 1996-05-31 | 1997-04-03 | Daimler Benz Ag | Finely structured vehicle structural component mfg. process |
| CN102802830A (en) * | 2009-10-30 | 2012-11-28 | 本田技研工业株式会社 | Scrap shape retention |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502296A (en) * | 2019-10-02 | 2022-05-13 | 杰富意钢铁株式会社 | Method and apparatus for press forming outer panel for automobile |
| US12083578B2 (en) | 2019-10-02 | 2024-09-10 | Jfe Steel Corporation | Method for press forming and apparatus for press forming automotive outer panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437604B (en) | 2020-07-17 |
| EP2998042B1 (en) | 2019-07-24 |
| DE102014219021A1 (en) | 2016-03-24 |
| EP2998042A1 (en) | 2016-03-23 |
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