CN102950207B - Precise U-shaped bending die for magnesium alloy sectional materials - Google Patents
Precise U-shaped bending die for magnesium alloy sectional materials Download PDFInfo
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- CN102950207B CN102950207B CN201210456956.3A CN201210456956A CN102950207B CN 102950207 B CN102950207 B CN 102950207B CN 201210456956 A CN201210456956 A CN 201210456956A CN 102950207 B CN102950207 B CN 102950207B
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Abstract
A precise U-shaped bending die for magnesium alloy sectional materials is mainly used for processing the magnesium alloy sectional materials. The die comprises an upper die frame and a lower die plate and is characterized in that the rectangular upper die frame consists of an upper crossbeam plate, a lower crossbeam steel pad and two precisely feeding racks, wherein the upper crossbeam plate and the lower crossbeam steel pad are horizontally arranged, the precisely feeding racks are vertically arranged as vertical sides, and the precisely feeding racks are connected to the upper crossbeam plate and the lower crossbeam steel pad; retaining plates are embedded on the outer sides of the precisely feeding racks, grooves are formed between the precisely feeding racks and the retaining plates, and rotating gear discs can slide in the grooves and are meshed with the precisely feeding racks; and two adjustable support wheels, the rotating gear discs and a retainer are arranged on the lower die plate, and a guide wheel and a molding wheel are arranged on each rotating gear disc. The deformation and breakage problems of magnesium alloy are basically solved. Through the fine adjustment of a wheel gap, the gap accuracy of the sectional materials is increased by 50%, and the defective rate is reduced by 80%.
Description
Technical field
The present invention is mainly used in the processing of magnesium alloy profiles, is specifically related to the U-shaped press-bending precision die of magnesium alloy profiles.
Background technology
The converted products of section bar is seen everywhere in daily life, our bicycle, automotive seat, perambulator, shopping cart, clothes hanger, building site handcart, Wheelchair, walk helpers etc. are all formed by shape extrusion, make the products such as bicycle popularize of magnesium alloy substitution of Al alloy.
The current price of magnesium alloy is by weight only a little more than aluminium alloy, and its proportion is 2/3rds of aluminium alloy, therefore by volume calculates its price a little less than aluminium alloy.And magnesium alloy is the lightest, the specific strength of most popular quality and the higher alloy of specific stiffness in contemporary industry engineering, magnesium has become the direction of material revolution for aluminium.
And the basis of extensive use magnesium alloy is exactly materials and process, two large difficult points wherein in magnesium alloy profiles processing are just distortion and welding.Our single bending mould can ensure the requirement of product now, can be U-shaped curved owing to being two centers of circle, higher to the requirement of spacing and bilateral perpendicularity, because the correcting deformed amount of magnesium alloy is very little, so also higher to the required precision of mould.
Traditional U-shaped bending die can not meet the more and more higher product requirement of required precision (see Fig. 1, Fig. 2).First, two arc centers of circle of conventional u-shaped bending die are spacings, do not regulate surplus, well can not adapt to the plural spring amount of magnesium alloy material, the spacing of the section bar upright posts at both sides after shaping can not be guaranteed, and the yield rate of conventional u-shaped bending die is less than 30%, and loss and waste is serious.Second point is that traditional U-shaped bending die does not have directive wheel to reduce the stress of section bar, and the sweep after shaping has collapse phenomenon, and product unsightly.Be thirdly conventional u-shaped bending die be rigid downforce, the distortion phenomenon of rupture of magnesium alloy profiles is serious.
Summary of the invention
In order to improve the product qualified rate of magnesium alloy profiles converted products, the invention provides the U-shaped press-bending precision die of a kind of magnesium alloy profiles.
The present invention includes mold framework, lower bolster, it is characterized in that mold framework forms rectangular frame by entablature plate, sill square iron and two tooth bars that progress greatly, wherein entablature plate, sill square iron are horizontally disposed with, two tooth bars that progress greatly vertically do stile, and two tooth bars that progress greatly are connected on entablature plate and sill square iron; Outside the tooth bar that progresses greatly, inlay limiting plate, progress greatly between tooth bar and limiting plate and form groove, rotating fluted disc can slide in groove, rotates fluted disc and engages with the tooth bar that progresses greatly;
Lower bolster arranged two adjustable supports wheels, rotate fluted disc and stop, rotate on fluted disc and directive wheel and briquetting roller are set;
Lower bolster is made up of base plate and riser, riser has strip adjustment hole, adjustable supports wheel moves in adjustment hole, and the length according to the spacing at the U-shaped end of the U-shaped product of processed magnesium alloy profiles regulates, even if adjustable supports wheel left and right displacement in adjustment hole.
Processing method of the present invention comprises following sequential steps:
1, section bar is put between briquetting roller and adjustable supports wheel, top, to stop, is locked by compactor.
2, primer fluid press descending button makes block form patrix descending, and by progressing greatly, rack drives rotating bottom board rotates.
3, first rotating bottom board drives directive wheel rotation to press down, and is at the uniform velocity out of shape after reducing stress by briquetting roller around adjustable supports wheel.
4, the section bar after distortion is taken out after second when briquetting roller reaches pressurize 5 after the angle of regulation.
5, rise patrix and put into next root type material to original position.
The present invention change patrix tradition processing the mode of thinking, change block form into by integral type, both sides ensure that after adding upper rack press down power output at the uniform velocity and balance.
The rotating band action-oriented wheel of the present invention by rotation fluted disc and the rotation of briquetting roller, change output and the transfer mode of downforce, become one-part form undershoot and press down into the slow-action of multiple spot power, decrease the rigid distortion of section bar, both ensure that section bar internal organizational structure, made again the external form more smooth and beautiful appearance of product.
Adjustable supports wheel of the present invention can be finely tuned the spacing of bilateral bend pipe, to adapt to the characteristic of unlike material.Ensure that the spacing accuracy of bilateral pipe, the assembly precision of Total Product is greatly improved.
The present invention changes the intrinsic mode of thinking of split type, guide pillar guide pin bushing, the upper and lower mould of traditional moulds, have employed brand-new one precision-fit mode, closely cooperated by tooth bar, rotation fluted disc, many group rollers etc., lower punch power is become revolving force, change the Impact direction of section bar, largely eliminate the internal stress of section bar distortion, fundamentally solve magnesium alloy deformation and to rupture this difficult problem, and making section bar spacing accuracy improve 50% by minitrim wheel spacing, percent defective have dropped 80%.
Accompanying drawing explanation
Fig. 1, Fig. 2 are the structure charts of the U-shaped bending die of existing magnesium alloy profiles.
Fig. 3 is the structure chart (state before the U-shaped press-bending of magnesium alloy profiles) of the embodiment of the present invention.
Fig. 4 is the state diagram after the U-shaped press-bending of embodiment of the present invention magnesium alloy profiles.
In figure, 1, patrix, 2, counterdie, 3, entablature plate, 4, tooth bar, 5, briquetting roller, 6, stop, 7, riser, 8, base plate, 9, adjustable supports wheel, 10, magnesium alloy profiles to be processed, 11, directive wheel, 12, fluted disc is rotated, 13, compactor, 14, limiting plate, 15, limit sliding chutes, 16, sill square iron.
Detailed description of the invention
Embodiment: shown in Fig. 3, the present embodiment comprises mold framework, lower bolster, upper mold framework forms rectangular frame by entablature plate 3, sill square iron 16 and two tooth bars 4 that progress greatly, wherein entablature plate 3 is positioned at the top of sill square iron 16, entablature plate 3 is parallel with sill square iron 16 and be horizontally disposed with, two progress greatly tooth bar 4 and entablature plates 3, sill square iron 16 are vertical and be arranged on the both sides end of entablature plate 3 and sill square iron 16, and two tooth bars 4 that progress greatly are fixedly attached on entablature plate 3 and sill square iron 16 and form rectangular frame; Arrange limiting plate 14 in the behind of the tooth bar 4 that progresses greatly, rotate fluted disc 12 and engage with the tooth bar 4 that progresses greatly, limiting plate 14 is spacing for rotating fluted disc 12, can prevent rotating fluted disc 12 and take off tooth with the tooth bar that progresses greatly;
Lower bolster is made up of base plate 8 and riser 7, riser 7 is arranged two 9, two, adjustable supports wheels and rotates fluted disc 12 and stop, each rotation fluted disc 12 is all arranged directive wheel 11 and briquetting roller 5; At riser 7 one end welded limiting horizontal stripe, milling elongated hole on horizontal stripe, limited block is arranged on bit selecting of sliding in elongated hole, puts into section bar F.F. cat ear screw locking after choosing slide position.Base plate 8 is vertically connected with riser 7, and base plate 8 is locked by the clam member of lathe bed under equipment.
In the middle of two adjustable support wheels 9, be provided with compactor, compactor is arranged on riser.
The wheel rim of adjustable support wheel 9 arranges semi-circular recesses, compactor arranges semi-circular recesses, the radius of semi-circular recesses mates with the radius being bent magnesium alloy profiles, and the adjustable support wheel semi-circular recesses of 9 and the semi-circular recesses of compactor snap together locks being bent magnesium alloy profiles.The axis of compactor and two adjustable support take turns center line between 9 point-blank.Like this, two briquetting rollers rotate press down time about pressure just impartial, the section bar after shaping could keep bilateral vertical.
Entablature plate and sill square iron all have displacement elongated hole, and displacement elongated hole can make to progress greatly tooth bar with the movement of adjustable supports wheel.
Claims (2)
1. the U-shaped press-bending precision die of magnesium alloy profiles, comprise mold framework, lower bolster, it is characterized in that mold framework forms rectangular frame by entablature plate, sill square iron and two tooth bars that progress greatly, wherein entablature plate, sill square iron are horizontally disposed with, two tooth bars that progress greatly vertically do stile, and two tooth bars that progress greatly are connected on entablature plate and sill square iron; Outside the tooth bar that progresses greatly, inlay limiting plate, progress greatly between tooth bar and limiting plate and form groove, rotating fluted disc can slide in groove, rotates fluted disc and engages with the tooth bar that progresses greatly; Lower bolster arranged two adjustable supports wheels, rotate fluted disc and stop, rotate on fluted disc and directive wheel and briquetting roller are set; Rotate the rotating band action-oriented wheel of fluted disc and the rotation of briquetting roller, make the output of downforce and transfer mode be that the slow-action of multiple spot power presses down; Adjustable supports wheel is finely tuned the spacing of bilateral bend pipe, ensures the spacing accuracy of bilateral pipe; Lower bolster is made up of base plate and riser, riser has strip adjustment hole, adjustable supports wheel moves in adjustment hole, and the length according to the spacing at the U-shaped end of the U-shaped product of processed magnesium alloy profiles regulates, even if adjustable supports wheel left and right displacement in adjustment hole.
2. the U-shaped press-bending precision die of a kind of magnesium alloy profiles according to claim 1, is characterized in that its procedure of processing successively:
(1), section bar put between briquetting roller and adjustable supports wheel, top, to stop, is locked by compactor;
(2), primer fluid press descending button makes mold framework descending, by the rack drives rotating bottom board rotation that progresses greatly;
(3), first rotating bottom board drive directive wheel to rotate and press down, and reduces to be taken turns around adjustable supports by briquetting roller after stress and be at the uniform velocity out of shape;
(4), the section bar after distortion is taken out after second when briquetting roller reaches pressurize 5 after the angle of regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456956.3A CN102950207B (en) | 2012-11-15 | 2012-11-15 | Precise U-shaped bending die for magnesium alloy sectional materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456956.3A CN102950207B (en) | 2012-11-15 | 2012-11-15 | Precise U-shaped bending die for magnesium alloy sectional materials |
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| Publication Number | Publication Date |
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| CN102950207A CN102950207A (en) | 2013-03-06 |
| CN102950207B true CN102950207B (en) | 2015-03-25 |
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| CN201210456956.3A Active CN102950207B (en) | 2012-11-15 | 2012-11-15 | Precise U-shaped bending die for magnesium alloy sectional materials |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215103B (en) * | 2015-09-24 | 2017-12-26 | 安徽省宁国市天成科技发展有限公司 | A kind of U-shaped heating tube continuous processing equipment |
| CN106216459A (en) * | 2016-08-19 | 2016-12-14 | 天津市泓金泰特种机械有限公司 | A kind of bending machine crossbeam |
| CN106734424A (en) * | 2016-11-17 | 2017-05-31 | 讯龙型材折弯（合肥）有限公司 | A kind of both sides rotary extrusion type S-shaped bar bending mechanism |
| CN107377781B (en) * | 2017-09-18 | 2023-07-25 | 深圳亿和模具制造有限公司 | Non-contact bending sliding block structure |
| CN108746277A (en) * | 2018-05-30 | 2018-11-06 | 芜湖同创模具机械有限公司 | A kind of steel pipe bending equipment |
| CN108746278A (en) * | 2018-05-30 | 2018-11-06 | 芜湖同创模具机械有限公司 | A kind of uniform force steel pipe bending equipment |
| CN109079052A (en) * | 2018-09-18 | 2018-12-25 | 河南永益同丰智能科技有限公司 | A kind of intelligence bar bending center adjustable mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034151A (en) * | 1988-01-14 | 1989-07-26 | 上海自行车二厂 | Versatile tube bending forming method and device |
| CN2332503Y (en) * | 1998-06-13 | 1999-08-11 | 洛阳高新技术开发区安力机械有限公司 | One-push two-way pipe bender |
| CN2652548Y (en) * | 2003-10-31 | 2004-11-03 | 洛阳安力机械有限公司 | Two-way inverse bend cored full hydraulic pipe bending machine |
| CN201073667Y (en) * | 2007-08-22 | 2008-06-18 | 马鞍山钢铁股份有限公司 | Bending device for cooling pipe of blast furnace steel-casting cooling wall |
| CN101549375A (en) * | 2009-05-15 | 2009-10-07 | 张荣焕 | Rocker-assistance multistage numerical control pipe bender |
| CN101947580A (en) * | 2010-08-04 | 2011-01-19 | 江苏申港锅炉有限公司 | Small-diameter thin-walled tube bender |
| CN202137240U (en) * | 2011-06-19 | 2012-02-08 | 江苏亚光金属制品有限公司 | Evaporator single-head pipeline pipe bender |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5542135A (en) * | 1978-09-20 | 1980-03-25 | Hitachi Ltd | Processing die for multi-point simultaneous bending of pipe |
-
2012
- 2012-11-15 CN CN201210456956.3A patent/CN102950207B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034151A (en) * | 1988-01-14 | 1989-07-26 | 上海自行车二厂 | Versatile tube bending forming method and device |
| CN2332503Y (en) * | 1998-06-13 | 1999-08-11 | 洛阳高新技术开发区安力机械有限公司 | One-push two-way pipe bender |
| CN2652548Y (en) * | 2003-10-31 | 2004-11-03 | 洛阳安力机械有限公司 | Two-way inverse bend cored full hydraulic pipe bending machine |
| CN201073667Y (en) * | 2007-08-22 | 2008-06-18 | 马鞍山钢铁股份有限公司 | Bending device for cooling pipe of blast furnace steel-casting cooling wall |
| CN101549375A (en) * | 2009-05-15 | 2009-10-07 | 张荣焕 | Rocker-assistance multistage numerical control pipe bender |
| CN101947580A (en) * | 2010-08-04 | 2011-01-19 | 江苏申港锅炉有限公司 | Small-diameter thin-walled tube bender |
| CN202137240U (en) * | 2011-06-19 | 2012-02-08 | 江苏亚光金属制品有限公司 | Evaporator single-head pipeline pipe bender |
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| CN102950207A (en) | 2013-03-06 |
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Effective date of registration: 20200512 Address after: Room 211, Zhonglang Zhongchuang space, 2 / F, Wanli science and technology office building, No.9, Changzhi West Lane, Taiyuan University Park, Shanxi comprehensive reform demonstration zone, Taiyuan City, Shanxi Province Patentee after: Shanxi Dongyin Industry Co., Ltd Address before: 030200 science and Technology Development Zone, Xing Road, Taiyuan, Shanxi, Gujiao Patentee before: GUJIAO CITY YINHE MAGNESIUM Co.,Ltd. |