CN102873163A - Method for forming tail door inner plate die surface - Google Patents
Method for forming tail door inner plate die surface Download PDFInfo
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- CN102873163A CN102873163A CN2012104013694A CN201210401369A CN102873163A CN 102873163 A CN102873163 A CN 102873163A CN 2012104013694 A CN2012104013694 A CN 2012104013694A CN 201210401369 A CN201210401369 A CN 201210401369A CN 102873163 A CN102873163 A CN 102873163A
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Abstract
The invention relates to a die surface for controlling surface wrinkling when an automobile panel tail door inner plate is drawn to form. Specifically, the corresponding technological complement of an easy wrinkling position is made to form a 'residual part' characteristic; the corresponding technological complement of the easy wrinkling position adopts 'semi-opening' drawing; and a novel parting line mode is adopted, a panel veneer is reversely tensioned to control the panel veneer moving. The die surface well controls the wrinkling degree, the blank size is reduced, and the material utilization rate is greatly improved.
Description
Technical field
The wrinkling die face of a kind of control surface when this patent relates to automobile panel tail-gate inner panel draw forming refers to a kind of tail-gate inner panel die face manufacturing process especially.
Background technology
In vehicle structure, body in white is the chief component of automobile, accounts for more than 70% of tare.The covering precision is the main guarantee of body in white precision, and the outer covering piece that how to obtain high accuracy and excellent surface quality becomes the important topic of present automobile industry research.
The automobile coverage forming operation is generally four road orders, and surface quality defect all might occur in any one operation.Except draw forming, deburring, the operations such as punching all easily solve, but the blemish that forms when draw forming is the difficult problem of a maximum always.Such as door inner and outer plates window lower corner, gusset upper prop front end is wrinkling etc., all becomes the technical bottleneck of coverage forming, also is problem demanding prompt solution.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can alleviate the wrinkling die face treatment process of plate.
The present invention is achieved by the following technical solutions:
A kind of tail-gate inner panel die face manufacturing process may further comprise the steps:
1), sheet material to be formed is put into the surface of the fixed die of mould;
2), sheet material is compressed with fixed die with contacted relative two limits of fixed die, guarantee that the sheet material on these both sides can not produce motion, keeping two other limit of sheet material can move;
3), apply respectively on two limits that sheet material can move and stop sheet material mobile power in the mould;
4), movable mold presses to fixed die under dynamic action, finish shaping.
As further improvement, in the described tail-gate inner panel die face forming process, the opposite direction that the sheet material at the position that at first will crease easily before finishing die forming finally draws to sheet material is stacking to go out remaining meat.
Apply respectively on two limits that sheet material can move and to stop sheet material mobile power big or small identical or not identical in the mould.
Described prevention sheet material in the mould mobile power greater than the impulsive force of movable mold or less than the impulsive force of movable mold.
Described oppositely stacking mode is extruding, impacts or bending.
The beneficial effect that the present invention compares with prior art is:
1, changes former ' full cut-off mouth ' die parting line mode, by flowing of control forming process blank, reach and fully draw effect, controlled preferably wrinkling degree.
2, reduce billet size, improved greatly stock utilization.
Description of drawings
Fig. 1 is die face schematic diagram of the present invention;
Fig. 2 is the cae analysis result schematic diagram;
Fig. 3 is this open-birth production. art block diagram.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
The described position that creases easily refers in prior art or production procedure in the present invention, such as door inner and outer plates window lower corner, the position that gusset upper prop front end is wrinkling, this position belong to the major defect in the production of real border, and those skilled in the art all understand the problem at this position.
Described remaining meat refers to respect to sheet material after bending in the present invention, in the accumulation that bending part forms, it is crooked that this part accumulation can cause lines to occur, and on other material, has formed local thickness such as the surface and partly has been also referred to as remaining meat greater than the thickness of matrix.
Take square sheet material commonly used as embodiment, when adopting aborning more than tetragonal sheet material, be suitable for too the application's technical scheme in this application.
Employed mould is existing mold in the present invention, and what the technical scheme during existing drawing and moulding adopted is that the full cut-off mouth draws, and is about to sheet material to be formed with the four limits compression of the fixed die in the mould.
Referring to figs. 1 to shown in Figure 3, among the present invention, sheet material to be formed is put into the surface of the fixed die in the mould; This step is identical with prior art, sometimes in order to satisfy some characteristic, also sheet material can be fixed with the movable mold in the mould.Do not affect technical scheme of the present invention as for sheet material with that a part of the fixing in the mould;
Sheet material is compressed with fixed die with contacted relative two limits of fixed die, guarantee that the sheet material on these both sides can not produce motion, can be according to requiring to determine as for those both sides that are fixed mould, keeping two other limit of sheet material can move;
Apply respectively on two limits that sheet material can move and to stop sheet material mobile power in the mould; In the present embodiment, stop the power size of sheet material identical and less than the impulsive force of movable mold, and surperficial parallel with fixed die of this power.
Movable mold presses to fixed die under dynamic action, finish shaping.
In the another embodiment of the present invention, other step is identical with aforementioned embodiment, and just before sheet material is fixed in fixed die, the opposite direction that the sheet material at the position that will crease easily first finally draws to sheet material is stacking to go out remaining meat; What the remaining meat stack manner in the present embodiment adopted is that the reverse impact mode is shaped.
Apply respectively on two limits that sheet material can move and to stop the size of sheet material mobile power in the mould can be identical, can be not identical yet.Adopting two, to stop sheet materials mobile different reason of power in the mould be to decide according to different requirements.
Mobile power can also can be less than the impulsive force of movable mold greater than the impulsive force of movable mold in the mould for described prevention sheet material.Particularly when the thickness of the part sheet material that need to be shaped is equal to or slightly less than basic sheet material, apply stop sheet material in the mould mobile power less than the impulsive force of movable mold; The thickness of the part sheet material that is shaped when needs is during clearly less than basic sheet material, apply and stop sheet material mobile power in the mould can obtain drawing the thickness of rear material here less than the thickness that draws part that sheet material to be formed all is fixed on the fixed die greater than the impulsive force of movable mold.
Described oppositely stacking mode can be extruding, impact or bending.Described extruding is to treat two relative edges of shaped sheet to apply in opposite directions power, and under this effect to power in opposite directions, the sheet material projection that can make progress forms remaining meat; Described impact be the sheet material at remaining meat position to be formed apply one with the last shaping direction power that namely the movable mold direction of motion is opposite, make sheet material produce herein the projection that makes progress; Described bending be the position that creases easily be break, sheet material is bent on the contrary with final drawing direction, can occur stacking namely remaining meat this moment in the bending place and produce.
Based on above-mentioned forming mode, by the cae analysis software verification, reached the wrinkling degree of great control, played preventing wrinkling effect, scheme economy, feasible, as shown in Figure 2.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (5)
1. a tail-gate inner panel die face manufacturing process is characterized in that, may further comprise the steps:
1), sheet material to be formed is put into the surface of the fixed die of mould;
2), described sheet material is compressed with fixed die with the contacted relative both sides of fixed die, so that the sheet material on these both sides can not produce movement, keeping other limit of sheet material can move;
3), apply respectively on other limit that sheet material can move and stop sheet material mobile power in the mould;
4), movable mold presses to fixed die under dynamic action, finish shaping.
2. tail-gate inner panel die face manufacturing process according to claim 1 is characterized in that: also comprised step before step 1): the opposite direction that the sheet material at the position that will crease easily finally draws to sheet material is stacking to go out remaining meat.
3. tail-gate inner panel die face manufacturing process according to claim 1 is characterized in that: apply respectively on other limit that sheet material can move and stop sheet material mobile power big or small identical in the mould.
4. tail-gate inner panel die face manufacturing process according to claim 3 is characterized in that: described power mobile in the mould is greater than the impulsive force of movable mold or less than the impulsive force of movable mold.
5. tail-gate inner panel die face manufacturing process according to claim 2 is characterized in that: the stacking mode of described opposite direction is extruding, impacts or bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401369.4A CN102873163B (en) | 2012-10-19 | 2012-10-19 | Method for forming tail door inner plate die surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401369.4A CN102873163B (en) | 2012-10-19 | 2012-10-19 | Method for forming tail door inner plate die surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873163A true CN102873163A (en) | 2013-01-16 |
| CN102873163B CN102873163B (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210401369.4A Active CN102873163B (en) | 2012-10-19 | 2012-10-19 | Method for forming tail door inner plate die surface |
Country Status (1)
| Country | Link |
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| CN (1) | CN102873163B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000687A (en) * | 2020-10-23 | 2021-06-22 | 安徽机电职业技术学院 | Intelligent reed shaping equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58196125A (en) * | 1982-05-13 | 1983-11-15 | Aida Eng Ltd | Forming by multidirectional press drawing |
| CN1136480A (en) * | 1995-02-10 | 1996-11-27 | 奥吉哈拉美国公司 | Stretch controlled forming mechanism and method for forming metal blanks |
| CN1778487A (en) * | 2004-11-22 | 2006-05-31 | 比亚迪股份有限公司 | Bending stretch shaping method and shaper for low-melting point alloy mould |
| CN201220252Y (en) * | 2008-06-06 | 2009-04-15 | 奇瑞汽车股份有限公司 | Calendering mould for workpiece having complicated shape |
| CN101700548A (en) * | 2009-11-17 | 2010-05-05 | 上海交通大学 | Punching die based on uneven resistance of deep-drawing rib |
| CN101786122A (en) * | 2009-01-26 | 2010-07-28 | 本田技研工业株式会社 | Press-die and press-processing method |
| JP2010253512A (en) * | 2009-04-24 | 2010-11-11 | Asmo Co Ltd | Drawing device and drawing method |
-
2012
- 2012-10-19 CN CN201210401369.4A patent/CN102873163B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58196125A (en) * | 1982-05-13 | 1983-11-15 | Aida Eng Ltd | Forming by multidirectional press drawing |
| CN1136480A (en) * | 1995-02-10 | 1996-11-27 | 奥吉哈拉美国公司 | Stretch controlled forming mechanism and method for forming metal blanks |
| CN1778487A (en) * | 2004-11-22 | 2006-05-31 | 比亚迪股份有限公司 | Bending stretch shaping method and shaper for low-melting point alloy mould |
| CN201220252Y (en) * | 2008-06-06 | 2009-04-15 | 奇瑞汽车股份有限公司 | Calendering mould for workpiece having complicated shape |
| CN101786122A (en) * | 2009-01-26 | 2010-07-28 | 本田技研工业株式会社 | Press-die and press-processing method |
| JP2010253512A (en) * | 2009-04-24 | 2010-11-11 | Asmo Co Ltd | Drawing device and drawing method |
| CN101700548A (en) * | 2009-11-17 | 2010-05-05 | 上海交通大学 | Punching die based on uneven resistance of deep-drawing rib |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113000687A (en) * | 2020-10-23 | 2021-06-22 | 安徽机电职业技术学院 | Intelligent reed shaping equipment |
| CN113000687B (en) * | 2020-10-23 | 2023-08-25 | 安徽机电职业技术学院 | Intelligent reed shaping equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102873163B (en) | 2014-07-02 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |