CN101497092B - Method for using balance post rod in drawing process for machining high-tension material asymmetrical component - Google Patents
Method for using balance post rod in drawing process for machining high-tension material asymmetrical component Download PDFInfo
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- CN101497092B CN101497092B CN200910103262XA CN200910103262A CN101497092B CN 101497092 B CN101497092 B CN 101497092B CN 200910103262X A CN200910103262X A CN 200910103262XA CN 200910103262 A CN200910103262 A CN 200910103262A CN 101497092 B CN101497092 B CN 101497092B
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Abstract
The invention relates to a method for using a balance mandril in the drawing process for processing an asymmetrical component of a high tension material. The method comprises that: a mould is arranged and locked on a machine while the balance mandril is arranged at one end with smaller stress during mould forming; an upper mould and a sliding block of the machine are locked and move downward, and when the upper mould and plates on a blank holder contact, the height of the balance mandril is adjusted to contact the sliding block of the machine simultaneously; the upper mould contact and press downward the blank holder, the mandril descends along with the action of upward pressure at the same time, and at the moment, the balance mandril supports the action of balanced force and descends together; and the upper mould continuously descends to ensure that the mould moves to a lower dead center and the balance mandril descends to the lowest at the same time so as to press the plates and complete shape curing of the component. The method is mainly suitable for forming plates with more than 600MPa of tensile strength, high tension and left-right asymmetry, can ensure that the plates are subjected to full plastic deformation, and reduce tendency of component rebound and distortion, thereby achieving the aim of size curing of the component.
Description
[technical field]
The present invention relates to a kind of drawing method, specifically is to adopt balance post rod to play the equilibrant force drawing work in eccentric punching press.
[background technology]
According to the requirement of Sheet Metal Forming Technology, the suffered aborning lathe pressure of mould should be in the center of mould, and the Center of Pressure not in the punching press of mold center position, cry eccentric punching press.Difference according to the center of effort position is divided into conventional punching press and eccentric punching press.There are following four difficult points at present in asymmetric high-tension material parts moulding: 1, briquetting pressure is big, and common press can not satisfy the requirement of forming force; 2, molding simulation is inaccurate, and part is the bounce-back and the twisted phenomena of easy appearance, the poor practicability as a result that provides with general simulation softward.3, the moulding limit is subjected to strict restriction, and high-tension material generally is commonly called as " two high ", tension limit height (tensile strength is more than 600Mpa), yield limit height.Therefore make the closed part that draws, its drawing depth is limited.4, element precision is difficult to control, because part bounce-back and distortion cause precision to be difficult to reach ideal value.Increase balance post rod, reach the effect of equilibrant force in process of production, in the service life of having improved lathe, guarantee the security performance of producing simultaneously in order to make mould.Given this, mould is subjected to force unbalance necessary to increasing balance post rod aborning.
[summary of the invention]
The objective of the invention is to deficiency, propose a kind of drawing method that is used for the asymmetric part of machining high-tension material, make it in the high-tension material drawing process, prevent and overcome the bounce-back and the distortion of material unbalance stress at the prior art existence.
The technical solution used in the present invention is as follows:
This drawing method adopts the balance post rod shaped device to include patrix, blank holder, punch, push rod, board and balance post rod, comprises following forming step:
The first step: mould is installed when being locked on the board, stressed little end when balance post rod is installed in mould molding.
Second step: with the locking of the slide block of patrix and board and move downward, when making patrix and plate on the blank holder contacting, adjust the balance post rod height at this moment and contact simultaneously with the slide block of board just.
The 3rd step: patrix contact blank holder is when pressing down, and push rod is along with the effect of pressure is descending.It is descending together that this moment, balance post rod supported the effect of equilibrant force.
The 4th step: patrix continues descending, and when making mould run to bottom dead centre, balance post rod drops to minimum, sheet material is killed finish part shape curing.
The 5th step: mould die sinking, push rod are released part under the effect of board air pressure pad power, and the drawing and moulding characteristic procedure finishes.
Advantage of the present invention shows the following aspects:
1. the asymmetric shaping mould in the common left and right sides is changed into the structure of using push rod to reach the equilibrant force effect, descending along with blank holder, it is big more that balance post rod applies reverse power to the lathe slide block, make the stressed unanimity that steadily reaches in the descending process of mould, and the balanced action by balance post rod in bottom dead centre makes part not produce distortion, distortion, thereby reaches the purpose that accessory size solidifies.
2. balance post rod is too many, easily causes the mould imbalance; Too short, can not play the effect of equilibrant force.Therefore can determine to use the quantity of balance post rod and the position of on lathe, installing according to part shape, can make when producing that the degree of balance reaches optimal value in the die molding process by adjustment balance post rod quantity and position.The die trial of high-tension metal plate spare drawing die, the general work amount is very big, difficulty and cycle when therefore the use of balance post rod can reduce die trial greatly, can be when die trial by the quantity of rapid adjustment balance post rod, thereby adjust the height of push rod, finally can contrast the part quality under the various height, thereby reach fast preferred result.
3. the present invention mainly is applicable to the asymmetric metal plate spare moulding in the high-tension left and right sides that tensile strength 600Mpa is above, can make the abundant plastic deformation of sheet material, reduces the trend of part bounce-back and distortion, thereby reaches the purpose that accessory size solidifies.
[description of drawings]
Fig. 1 a, Fig. 1 b, Fig. 1 c are the state diagrams that realizes each step of shaped device of this forming method;
Fig. 2 is the sketch that the drawing die of the asymmetric part in the machining high-tension sheet material left and right sides uses balance post rod;
Fig. 3 is a kind of sketch of the preceding crossbeam inner panel (the asymmetric part in the left and right sides) of automobile of high-tension plates making;
[specific embodiment]
The shaped device that this method adopts is as shown in Figure 1a: it is made up of patrix (1), blank holder (2), punch (3), push rod (4), board (5) and balance post rod (6) shown in Figure 2.
The crossbeam inner panel is exactly the asymmetric part in the left and right sides before the automobile that high-tension plates shown in Figure 3 is made, and arrow A is a feedstock direction, and arrow B is a pressing direction.Below in conjunction with Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 2, this method implementation process is as follows:
The first step: mould (9) is installed when being locked on the board, stressed little end when balance post rod is installed in mould molding.
Second step: the slide block (7) of patrix (1) and board (5) is locked and moves downward, make plate (8) on patrix (1) and the blank holder when contacting, adjust balance post rod (6) at this moment and contact simultaneously with the slide block of board (5) highly just.
The 3rd step: patrix (1) contact blank holder (2) is when pressing down, and push rod (4) is along with the effect of pressure is descending.It is descending together that this moment, balance post rod supported the effect of equilibrant force.
The 4th step: patrix continues descending, and when making mould run to bottom dead centre, balance post rod drops to minimum, sheet material is killed finish part shape curing.
The 5th step: mould die sinking, push rod (4) are released part under the effect of board air pressure pad power, and the drawing and moulding characteristic procedure finishes.
Claims (3)
1. use the method for balance post rod in the drawing process of the asymmetric part of machining high-tension material, the shaped device that described method adopts includes patrix (1), blank holder (2), punch (3), push rod (4), board (5) and balance post rod (6), comprises following forming step:
The first step: when mould is installed and to be locked on the board (5),, install balance post rod in the lump with balance post rod (6) stressed little end when being installed in mould molding;
Second step: with the slide block locking of patrix (1) and board (5) and move downward, when making patrix (1) and plate on the blank holder contacting, adjust balance post rod (6) at this moment and contact simultaneously with the slide block of board (5) highly just;
The 3rd step: when pressing down, push rod (4) is along with the effect of pressure is descending at patrix (1) contact blank holder (2), and the stressed back of balance post rod this moment (6) is and then descending together;
The 4th step: descending when patrix (1) continuation, when making mould run to bottom dead centre, balance post rod (6) drops to minimum, sheet material is killed finish part shape curing;
The 5th step: mould die sinking, push rod (4) are released part under the effect of board air pressure pad power, and the drawing and moulding characteristic procedure finishes.
2. shaped device of realizing the described method of claim 1, described device includes patrix (1), blank holder (2), punch (3), slide block (7), push rod (4) and board (5), patrix (1) locks by slide block with board (5), blank holder (2) is arranged on outside the punch (3), it is characterized in that, also include balance post rod (6), described balance post rod (6) is a stressed little end when being installed in mould molding, the slide block of board is withstood in the upper end, and the lower end is installed on the board (5).
3. according to the described shaped device of claim 2, it is characterized in that described balance post rod (6) is provided with many with asymmetric part of machining high-tension material of balance post rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103262XA CN101497092B (en) | 2009-02-24 | 2009-02-24 | Method for using balance post rod in drawing process for machining high-tension material asymmetrical component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103262XA CN101497092B (en) | 2009-02-24 | 2009-02-24 | Method for using balance post rod in drawing process for machining high-tension material asymmetrical component |
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| Publication Number | Publication Date |
|---|---|
| CN101497092A CN101497092A (en) | 2009-08-05 |
| CN101497092B true CN101497092B (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910103262XA Active CN101497092B (en) | 2009-02-24 | 2009-02-24 | Method for using balance post rod in drawing process for machining high-tension material asymmetrical component |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103101154A (en) * | 2013-01-31 | 2013-05-15 | 昆山腾宇鑫金属制品有限公司 | Mould for asymmetrical structure product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276185B1 (en) * | 1999-12-09 | 2001-08-21 | General Motors Corporation | Flow lock bead control apparatus and method for drawing high strength steel |
| DE19853130B4 (en) * | 1998-11-18 | 2005-07-14 | Daimlerchrysler Ag | Method and device for deep-drawing sheet metal parts |
| CN101104189A (en) * | 2007-05-31 | 2008-01-16 | 长安福特马自达汽车有限公司 | Stretching technology for processing high-tension material parts and stretching mould thereof |
| CN201353609Y (en) * | 2009-02-24 | 2009-12-02 | 联伟汽车零部件(重庆)有限公司 | Forming device with balance jacking rod for processing high tension asymmetrical parts |
-
2009
- 2009-02-24 CN CN200910103262XA patent/CN101497092B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19853130B4 (en) * | 1998-11-18 | 2005-07-14 | Daimlerchrysler Ag | Method and device for deep-drawing sheet metal parts |
| US6276185B1 (en) * | 1999-12-09 | 2001-08-21 | General Motors Corporation | Flow lock bead control apparatus and method for drawing high strength steel |
| CN101104189A (en) * | 2007-05-31 | 2008-01-16 | 长安福特马自达汽车有限公司 | Stretching technology for processing high-tension material parts and stretching mould thereof |
| CN201353609Y (en) * | 2009-02-24 | 2009-12-02 | 联伟汽车零部件(重庆)有限公司 | Forming device with balance jacking rod for processing high tension asymmetrical parts |
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| CN101497092A (en) | 2009-08-05 |
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Owner name: CHONGQING PINGWEI PRECISION MOULD CO., LTD. Free format text: FORMER OWNER: LIANWEI AUTOMOBILE PARTS (CHONGQING) CO., LTD. Effective date: 20110325 |
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Owner name: CHONGQING PINGWEI AUTO MOULD CO., LTD. Free format text: FORMER NAME: CHONGQING PINGWEI PRECISION MOULD CO., LTD. |
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Address after: 401122, No. six, No. 1 processing zone, Chongqing economic and Technological Development Zone Patentee after: CHONGQING PINGWEI AUTO MOULD CO., LTD. Address before: 401122, No. six, No. 1 processing zone, Chongqing economic and Technological Development Zone Patentee before: Chongqing Pingwei Precision Mold Co.,Ltd. |
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Address after: 401122, 14 Jie Jie street, Lijia Town, North New District, Chongqing Patentee after: CHONGQING PINGWEI AUTO MOULD CO., LTD. Address before: 401122, No. six, No. 1 processing zone, Chongqing economic and Technological Development Zone Patentee before: CHONGQING PINGWEI AUTO MOULD CO., LTD. |
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Address after: 401122 Chongqing City, the new Northern District of Lijia town Jie Jie street, No. 20 Patentee after: CHONGQING PINGWEI AUTOMOBILE TECHNOLOGY CO., LTD. Address before: 401122, 14 Jie Jie street, Lijia Town, North New District, Chongqing Patentee before: CHONGQING PINGWEI AUTO MOULD CO., LTD. |