CN102950207A - 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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- CN102950207A CN102950207A CN2012104569563A CN201210456956A CN102950207A CN 102950207 A CN102950207 A CN 102950207A CN 2012104569563 A CN2012104569563 A CN 2012104569563A CN 201210456956 A CN201210456956 A CN 201210456956A CN 102950207 A CN102950207 A CN 102950207A
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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, the bicycle of our usefulness, automotive seat, perambulator, shopping cart, clothes hanger, building site handcart, Wheelchair, walk helpers etc. all are to be processed by section bar, popularize with products such as magnesium alloy substitution of Al alloy making bicycles.
The present price of magnesium alloy is by weight only a little more than aluminium alloy, and its proportion is 2/3rds of aluminium alloy, so by volume calculate 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 on the contemporary industry engineering, and magnesium has become the direction of material revolution for aluminium.
And the basis of extensive use magnesium alloy is exactly material and technique, and wherein two large difficult points in the magnesium alloy profiles processing just are distortion and welding.Our single bending mould can guarantee the requirement of product now, can be U-shaped curved owing to being two centers of circle, and 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 satisfy the more and more higher product requirement of required precision (seeing Fig. 1, Fig. 2).At first, two arcs center of circle of traditional U-shaped bending die is spacing, does not regulate surplus, the changeable amount of elasticity that can not well adapt to the magnesium alloy material, the spacing of the section bar upright posts at both sides after the moulding can not be guaranteed, and the yield rate of traditional 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 the moulding has collapse phenomenon, and product is not attractive in appearance.Thirdly be that traditional U-shaped bending die is 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 patrix consists of rectangular frame by top rail beam slab, sill square iron and two tooth bars that progress greatly, wherein top rail beam slab, sill square iron are horizontally disposed with, two tooth bars that progress greatly are vertically done stile, and two tooth bars that progress greatly are connected on top rail beam slab and the sill square iron; Inlay limiting plate in the tooth bar outside of progressing greatly, progressing greatly forms groove between tooth bar and the limiting plate, and the rotation fluted disc can slide in groove, rotation fluted disc and the tooth bar engagement that progresses greatly;
Two adjustable supports wheels, rotation fluted disc and stops are set on the lower bolster, on the rotation fluted disc directive wheel and briquetting roller are set;
Lower bolster is made of base plate and riser, have the strip adjustment hole at riser, adjustable supports wheel can move in adjustment hole, can regulate according to the length of the spacing at the U-shaped end of the U-shaped product of processed magnesium alloy profiles, even adjustable supports is taken turns 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 the adjustable supports wheel, the top is locked by compactor to stop.
2, it is descending that primer fluid press descending button makes the block form patrix, and the rack drives rotating bottom board rotates by progressing greatly.
3, rotating bottom board at first drives directive wheel and rotates and to press down, and reduces behind the stress by briquetting roller around the at the uniform velocity distortion of adjustable supports wheel.
4, after briquetting roller reaches 5 seconds of pressurize after the angle of regulation, the section bar after the distortion is taken out.
5, rise patrix and put into next root section bar to original position.
The present invention has changed the tradition processing mode of thinking of patrix, changes block form into by integral type, both sides add guaranteed behind the upper rack to press down power output at the uniform velocity and balance.
The present invention drives the rotation of directive wheel and briquetting roller by the rotation of rotating bottom board, change output and the transfer mode of downforce, become the one-part form undershoot into the slow-action of multiple spot power presses down, reduced the rigid distortion of section bar, both guaranteed the section bar internal organizational structure, the external form that makes again product is smooth and beautiful appearance more.
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.Guaranteed the spacing precision of bilateral pipe, the assembly precision of product integral body has been greatly improved.
The present invention has changed split type, the guide pillar guide pin bushing of traditional moulds, the intrinsic mode of thinking of upper and lower mould, adopted brand-new one precision-fit mode, by tooth bar, rotation fluted disc, organize roller etc. more and closely cooperate, lower punch power is become revolving force, change the force direction that is subjected to of section bar, eliminated greatly the internal stress of section bar distortion, fundamentally solved magnesium alloy deformation this difficult problem that ruptures, and making section bar spacing precision improve 50% by the minitrim wheel spacing, percent defective has descended 80%.
Description of drawings
Fig. 1, Fig. 2 are the structure charts of the existing U-shaped bending die of 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 invention.
Fig. 4 is the state diagram after the U-shaped press-bending of embodiment of the invention magnesium alloy profiles.
Among the figure, 1, patrix, 2, counterdie, 3, top rail beam slab, 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, rotation fluted disc, 13, compactor, 14, limiting plate, 15, limit sliding chutes, 16, the sill square iron.
The specific embodiment
Embodiment: shown in Figure 2, present embodiment comprises mold framework, lower bolster, upper mold framework consists of rectangular frame by top rail beam slab 3, sill square iron 16 and two tooth bars 4 that progress greatly, wherein top rail beam slab 3 is positioned at the top of sill square iron 16, top rail beam slab 3 and sill square iron 16 are parallel and be horizontally disposed with, two progress greatly tooth bar 4 and top rail beam slabs 3, sill square iron 16 are vertical and be arranged on the both sides end of top rail beam slab 3 and sill square iron 16, and two tooth bars 4 that progress greatly are fixedly attached on top rail beam slab 3 and the sill square iron 16 and consist of rectangular frame; Behind at the tooth bar 4 that progresses greatly arranges limiting plate 14, rotation fluted disc 12 and tooth bar 4 engagements that progress greatly, and it is spacing that limiting plate 14 is used for rotation fluted disc 12, can prevent from rotating fluted disc 12 and take off tooth with the tooth bar that progresses greatly;
Lower bolster is comprised of base plate 8 and riser 7, and two adjustable supports wheel 9, two rotations fluted discs 12 and stop are set on the riser 7, on each rotation fluted disc 12 directive wheel 11 and briquetting roller 5 is set all; At riser 7 one end welded limiting horizontal stripes, mill slotted hole on the horizontal stripe, limited block is arranged on the bit selecting of sliding in the slotted hole, chooses and puts into section bar behind the slide position with the locking of F.F. cat ear snail silk.Base plate 8 is connected with riser vertically and is connected, and base plate 8 is by the clam member locking of lathe bed under the equipment.
In the middle of two adjustable support wheels 9 compactor is installed, compactor is installed on the riser.
The wheel rim of adjustable support wheel 9 arranges semi-circular recesses, compactor arranges semi-circular recesses, the radius of semi-circular recesses and the radius coupling that is bent magnesium alloy profiles, the semi-circular recesses of adjustable support wheel 9 and the semi-circular recesses of compactor snap together and will be bent magnesium alloy profiles locking.Center line between the axis of compactor and two adjustable support wheel 9 point-blank.Like this, pressure is just impartial about two briquetting rollers rotate when pressing down, and the section bar after the moulding could keep bilateral vertical.
All have the displacement slotted hole on top rail beam slab and sill square iron, the displacement slotted hole can make the tooth bar that progresses greatly mobile with the adjustable supports wheel.
Claims (2)
1. U-shaped press-bending precision die of magnesium alloy profiles, comprise mold framework, lower bolster, it is characterized in that patrix consists of rectangular frame by top rail beam slab, sill square iron and two tooth bars that progress greatly, wherein top rail beam slab, sill square iron are horizontally disposed with, two tooth bars that progress greatly are vertically done stile, and two tooth bars that progress greatly are connected on top rail beam slab and the sill square iron; Inlay limiting plate in the tooth bar outside of progressing greatly, progressing greatly forms groove between tooth bar and the limiting plate, and the rotation fluted disc can slide in groove, rotation fluted disc and the tooth bar engagement that progresses greatly; Two adjustable supports wheels, rotation fluted disc and stops are set on the lower bolster, on the rotation fluted disc directive wheel and briquetting roller are set; Lower bolster is made of base plate and riser, have the strip adjustment hole at riser, adjustable supports wheel can move in adjustment hole, can regulate according to the length of the spacing at the U-shaped end of the U-shaped product of processed magnesium alloy profiles, even adjustable supports is taken turns 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 is successively:
(1), section bar is put between briquetting roller and the adjustable supports wheel, the top is locked by compactor to stop;
(2), primer fluid press descending button makes the block form patrix descending, the rack drives rotating bottom board rotates by progressing greatly;
(3), rotating bottom board at first drives directive wheel and rotates and to press down, reduce behind the stress by briquetting roller around the at the uniform velocity distortion of adjustable supports wheel;
(4), after briquetting roller reaches 5 seconds of pressurize after the angle of regulation, the section bar after the distortion is taken out.
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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| CN102950207A true CN102950207A (en) | 2013-03-06 |
| CN102950207B CN102950207B (en) | 2015-03-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215103A (en) * | 2015-09-24 | 2016-01-06 | 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 |
| CN107377781A (en) * | 2017-09-18 | 2017-11-24 | 深圳亿和模具制造有限公司 | A kind of non-contact type Bending Slide 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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| JPS5542135A (en) * | 1978-09-20 | 1980-03-25 | Hitachi Ltd | Processing die for multi-point simultaneous bending of pipe |
| 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 |
-
2012
- 2012-11-15 CN CN201210456956.3A patent/CN102950207B/en active Active
Patent Citations (8)
| 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 |
| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215103A (en) * | 2015-09-24 | 2016-01-06 | 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 |
| CN107377781A (en) * | 2017-09-18 | 2017-11-24 | 深圳亿和模具制造有限公司 | A kind of non-contact type Bending Slide 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 | Publication date |
|---|---|
| CN102950207B (en) | 2015-03-25 |
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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. |
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