CN1454730A - Diagonal wedge continuous-rolling shaping method - Google Patents
Diagonal wedge continuous-rolling shaping method Download PDFInfo
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- CN1454730A CN1454730A CN 03137468 CN03137468A CN1454730A CN 1454730 A CN1454730 A CN 1454730A CN 03137468 CN03137468 CN 03137468 CN 03137468 A CN03137468 A CN 03137468A CN 1454730 A CN1454730 A CN 1454730A
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Abstract
The invention provides a oblique wedge continuous rolling and shaping method. A pair of rollers with the same hole revolves along the same direction and with the same speed, the crossing angle theta of roller's axis is 2-8 degrees, the roller hole is made up of classic oblique roller bulge arris and shaping oblique wedge, the material deforming direction which is decided by shaping olique wedge is reverse to the rolled piece sending direction. The forming area of roller is 360-1080 degrees, when the roller revolves a circle it produces a product, the two ends of the rolling piece is cut off when the rolling is finished; the advantage lies in: the design is simple correspondingly, the complex coefficient of the product is large, the precision is upgraded greatly, it applies to heat plastic shaping of axis parts which has a shorter long-diameter.
Description
Technical field:
The invention belongs to the metal forming technical field, a kind of oblique wedge continuous rolling and shaping method particularly is provided.Relate to the thermoplastic forming of short axial workpiece of axial workpiece continuous Plastic Forming, particularly draw ratio (draw ratio refers to length-to-diameter).
Technical background:
Part rolling technique (oblique milling and cross wedge rolling) is the advanced technologies of axial workpiece Plastic Forming, and oblique roll process is more suitable in the short relatively axial workpiece of draw ratio.The oblique milling technology needs the volume of each contained product material in cross section in the accurate Calculation mold cavity when designing mould, because the spatial relationship complexity, this will be a very difficult thing, and is more difficult when attempting the complex-shaped product of Accurate Shaping especially.In addition, oblique roll process can't be regulated and control the axial force of rolled piece inside when rolling, produces loose or hole in product heart portion easily in some cases.
Summary of the invention
The object of the present invention is to provide a kind of method of wedge progressive forming, solve the short complex-shaped product of Accurate Shaping draw ratio, make the mould design simple relatively, can be in enormous quantities, high efficiency, high accuracy, serialization produce the complicated shape product.
Of the present invention constituting: the roll of a pair of identical pass, equidirectionally rotate with rotating speed.Roll axis is 2～8 degree in space crossed angle theta.Roll pass is made up of classical oblique milling fin and shaping wedge.The material deformation direction that the shaping wedge is determined is opposite with the rolled piece feeding direction.The shaping district of roll is between 360～1080 degree, and one week of roll revolution is produced a product, and the rolled piece two ends are simultaneously severed during rolling finishing.Concrete technology is as follows:
As shown in Figure 1, two rolls 1,3 with same-handed wedge pass, its axis intersects (see figure 2) mutually in two roller vertical plane projections, two rolls turn to identical, raw material 2 reverse rotation under the roll effect, and along the center line axially-movable of the two roll projection angles of cut, the roll revolving parts product 8 that is shaped that whenever circles.
Roller surface by with corresponding basic pass of product design and basic screw-pitch, cut off fin 5,6 before and after the shaping wedge 4,7 that the broadening direction is opposite with the rolled piece feeding direction, rolled piece, deflector chute 9, classical oblique milling fin 10 compositions.
Classical oblique milling fin 10 calculates the fin width by classical oblique milling equal-volume theory, and changes pitch at the fin feed side.Classical oblique milling fin is generally little at the rolled piece width, the utilization when contraction percentage of area is big.After fin pitch changed, all followed variation in the roll type groove pitch of its feed side.
Cut off fin the 5, the 6th before and after the rolled piece, in the roll exit, former and later two fins rise a pair of thin cutting knife fin fast by finished product rolled piece side, cut off simultaneously connecting the footpath before and after the rolled piece.Connecting the footpath generally rolls into classical oblique milling method.
The width of deflector chute 9 and shape are generally determined by the profile at rolled piece maximum gauge place.Its effect is to nip a part of material with the opposition of balance α forming face, and the guiding rolled piece advances along the roll helicla flute.
The invention has the advantages that:
1, replace classical oblique milling fin with the material deformation direction wedge shape bossing opposite with the rolled piece feeding direction, bigger minimizing the volume amount of calculation that must do during roll of design, make Roller Design work more or less freely.
2, reduce complicated volume and calculated, promptly reduced design error.Make rolling complex product become possibility, and the product precision improve a lot.
3, the method that adopts the shaping wedge to combine with classical fin, the operation of rolling is finished more than one week at roll, and the rear and front end cuts off simultaneously.Big contraction percentage of area product that can rolling complexity, and make the product both ends of the surface smoothly neat.
4, the angle of change wedge can change the stress-strain state of rolled piece inside, thereby can effectively control and improve the internal soundness of product.
5, the operation of rolling is carried out continuously, and when previous rolled piece unshaped was over, a back rolled piece had begun rolling, and it is little to connect the footpath, saves material.
6, can change shape of product as long as change the shape and the position protruding and classical fin 10 of shaping wedge 7, produce different products.
Description of drawings:
Fig. 1 is a manufacturing process process schematic diagram of the present invention.Roll 1,3, raw material 2, shaping wedge 4,7 cuts off fin 5,6, deflector chute 9, classical oblique milling fin 10, part product 8.β is the angle between forming face and the basic lead of screw of roll.
Fig. 2 is a roll locus schematic diagram.Shaping wedge 4 has a angle the forming face of α in the face of rolled piece feeding direction and roll axis, and θ is that roll axis is at space crossed angle.
Claims (5)
1, a kind of oblique wedge continuous rolling and shaping method, it is characterized in that: the roll of a pair of identical pass, equidirectionally rotate with rotating speed, roll axis is 2～8 degree in space crossed angle theta, roll pass is made up of classical oblique milling fin and shaping wedge, and the material deformation direction that the shaping wedge is determined is opposite with the rolled piece feeding direction, and the shaping district of roll is 360～1080 degree, one week of roll revolution is produced a product, and the rolled piece two ends are simultaneously severed during rolling finishing; Concrete roll forming technical process is: two roll (1) and (3) with same-handed wedge pass, its axis intersects mutually in two roller vertical plane projections, two rolls turn to identical, raw material (2) reverse rotation under the roll effect, and along the center line axially-movable of the two roll projection angles of cut, the shaping district of roll between 360～1080 degree, the roll revolving parts product (8) that is shaped that rotates a circle.
2, according to the described oblique wedge continuous rolling and shaping method of claim 1, it is characterized in that: roller surface by with corresponding basic pass of product design and basic screw-pitch, the shaping wedge (4,7) that the broadening direction is opposite with the rolled piece feeding direction, cut off fin (5,6) before and after the rolled piece, deflector chute (9), classical oblique milling fin (10) is formed; Shaping wedge (4) has a angle the forming face of α in the face of rolled piece feeding direction and roll axis, angle α is 15～60 degree, it is the broadening angle of 2～10 degree that one angle beta is arranged between the basic lead of screw of this forming face and roll, under the effect of α forming face, metal is sent the rightabout compression to rolled piece, workpiece diameter reaches preliminary dimension, and finishing is shaped under the effect of roll surface (7).
3, according to claim 1 or 2 described oblique wedge continuous rolling and shaping method, it is characterized in that: shaping wedge end face (7) is made up of highly constant helicoid, and is consistent with rolled piece part profile;
4, according to claim 1 or 2 described oblique wedge continuous rolling and shaping method, it is characterized in that: classical oblique milling fin (10) calculates the fin width by classical oblique milling equal-volume theory, and changes pitch at the fin feed side.
5, according to claim 1 or 2 described oblique wedge continuous rolling and shaping method, it is characterized in that: cutting off fin (5,6) before and after the rolled piece is in the roll exit, former and later two fins rise a pair of thin cutting knife fin fast by finished product rolled piece side, cut off simultaneously connecting the footpath before and after the rolled piece, connect the footpath and generally roll into classical oblique milling method.
6, according to claim 1 or 2 described oblique wedge continuous rolling and shaping method, it is characterized in that: the width of deflector chute (9) and shape are by the profile decision at rolled piece maximum gauge place, its effect is to nip a part of material with the opposition of balance α forming face, and the guiding rolled piece advances along the roll helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137468 CN1225326C (en) | 2003-06-25 | 2003-06-25 | Diagonal wedge continuous-rolling shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137468 CN1225326C (en) | 2003-06-25 | 2003-06-25 | Diagonal wedge continuous-rolling shaping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1454730A true CN1454730A (en) | 2003-11-12 |
| CN1225326C CN1225326C (en) | 2005-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03137468 Expired - Fee Related CN1225326C (en) | 2003-06-25 | 2003-06-25 | Diagonal wedge continuous-rolling shaping method |
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| CN (1) | CN1225326C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301161C (en) * | 2004-04-30 | 2007-02-21 | 北京科技大学 | Precise cold skew rolling forming method for rockbolt |
| CN100435999C (en) * | 2006-12-12 | 2008-11-26 | 北京科技大学 | Multi-wedge synchronizing smooth butte rolling method for rolling same diameter axle type pieces by cross wedge rolling |
| CN102172627A (en) * | 2010-12-28 | 2011-09-07 | 曾建伟 | Composite insulator hardware helical groove skew rolling roll groove design method |
| CN103192266A (en) * | 2013-04-03 | 2013-07-10 | 哈尔滨理工大学 | Extruding and rolling composite forming device and method of integral panel skin with ribs |
| CN103639334A (en) * | 2013-12-09 | 2014-03-19 | 安庆市振发汽车锻件有限责任公司 | Multipurpose cross wedge rolling die |
| CN104148397A (en) * | 2014-07-09 | 2014-11-19 | 武汉理工大学 | Method for flexible design of spiral groove skew rolling roller |
| CN105964697A (en) * | 2016-04-27 | 2016-09-28 | 武汉理工大学 | Design method for high-precision fine grain groove diagonal rolling roller |
| CN106424141A (en) * | 2016-07-27 | 2017-02-22 | 北京科技大学 | Method for warm skew rolling and shaping of neck bush of damping part and die of same |
| CN109604486A (en) * | 2018-11-17 | 2019-04-12 | 柳州国福科技有限公司 | A kind of efficient green rolling production method of automobile axis part |
-
2003
- 2003-06-25 CN CN 03137468 patent/CN1225326C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301161C (en) * | 2004-04-30 | 2007-02-21 | 北京科技大学 | Precise cold skew rolling forming method for rockbolt |
| CN100435999C (en) * | 2006-12-12 | 2008-11-26 | 北京科技大学 | Multi-wedge synchronizing smooth butte rolling method for rolling same diameter axle type pieces by cross wedge rolling |
| CN102172627A (en) * | 2010-12-28 | 2011-09-07 | 曾建伟 | Composite insulator hardware helical groove skew rolling roll groove design method |
| CN102172627B (en) * | 2010-12-28 | 2013-06-12 | 曾建伟 | Composite insulator hardware helical groove skew rolling roll groove design method |
| CN103192266B (en) * | 2013-04-03 | 2016-01-13 | 哈尔滨理工大学 | Band muscle integral panel squeezes compound molding device and method |
| CN103192266A (en) * | 2013-04-03 | 2013-07-10 | 哈尔滨理工大学 | Extruding and rolling composite forming device and method of integral panel skin with ribs |
| CN103639334A (en) * | 2013-12-09 | 2014-03-19 | 安庆市振发汽车锻件有限责任公司 | Multipurpose cross wedge rolling die |
| CN104148397A (en) * | 2014-07-09 | 2014-11-19 | 武汉理工大学 | Method for flexible design of spiral groove skew rolling roller |
| CN104148397B (en) * | 2014-07-09 | 2017-01-18 | 武汉理工大学 | Method for flexible design of spiral groove skew rolling roller |
| CN105964697A (en) * | 2016-04-27 | 2016-09-28 | 武汉理工大学 | Design method for high-precision fine grain groove diagonal rolling roller |
| CN105964697B (en) * | 2016-04-27 | 2017-08-25 | 武汉理工大学 | A kind of high-precision fine grain groove skew rolling roll manufacture method |
| CN106424141A (en) * | 2016-07-27 | 2017-02-22 | 北京科技大学 | Method for warm skew rolling and shaping of neck bush of damping part and die of same |
| CN109604486A (en) * | 2018-11-17 | 2019-04-12 | 柳州国福科技有限公司 | A kind of efficient green rolling production method of automobile axis part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1225326C (en) | 2005-11-02 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Rugao Dasheng Line Equipment Co.,Ltd. Assignor: University of Science and Technology Beijing Contract fulfillment period: 2009.2.18 to 2010.2.18 contract change Contract record no.: 2009320000429 Denomination of invention: Diagonal wedge continuous-rolling shaping method Granted publication date: 20051102 License type: Exclusive license Record date: 2009.3.18 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.18 TO 2010.2.18; CHANGE OF CONTRACT Name of requester: RUGAO DASHENG LINE MATERIAL CO.,LTD Effective date: 20090318 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 |