CN102284490A - Cross wedge rolling die - Google Patents
Cross wedge rolling die Download PDFInfo
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- CN102284490A CN102284490A CN2011101644905A CN201110164490A CN102284490A CN 102284490 A CN102284490 A CN 102284490A CN 2011101644905 A CN2011101644905 A CN 2011101644905A CN 201110164490 A CN201110164490 A CN 201110164490A CN 102284490 A CN102284490 A CN 102284490A
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Abstract
The invention discloses a cross wedge rolling die. The die comprises a roller body, wherein a first wedge positioned at the central position of the roller body, a second wedge, a third wedge and a fourth wedge which are adjacent to the first wedge, and a fifth wedge adjacent to the second wedge are arranged on the circumferential surface of the roller body; the third wedge is arranged on the upper surface of the fifth wedge; and the fourth wedge is arranged on the upper surface of the second wedge. Through the arrangement, the problem that a connecting rod blank is easy to bend and distort in the processing procedure can be effectively solved.
Description
Technical field
The present invention relates to the Machining of Shaft-type Parts apparatus field, particularly a kind of cross wedge rolling die.
Background technology
Cross wedge rolling is a kind of axial workpiece forming process, new technology.Advantages such as this kind technology belongs to the intersection of metallurgical and mechanical subject on science, compare with forming parts technologies such as traditional cutting, forgings, and it has the production efficiency height, saves raw material, production cost is low are acknowledged as the part of current advanced manufacturing.
Cross wedge rolling die comprises first roll and second roll with wedge, and first roll rotates with identical direction with second roll, and drives the cylinder blank rotation, and blank forms the step axle under the rolling effect of wedge.In order to prevent that blank from being extruded by first carrying roller and second carrying roller, the blank front and back position is equipped with baffle plate, and these two baffle plates are connected to blank from the position, front and back respectively, so, has effectively evaded the problem that blank is extruded.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is a connecting rod blank structural representation in the prior art; Fig. 2 is a cross wedge rolling roll deployed configuration schematic diagram in the prior art.
The cross wedge rolling roll of processing connecting rod blank in the prior art, comprise: the roll body, be arranged at first wedge 011 of center of the periphery of roll body, with second wedge 012 of first wedge, 011 adjacent setting, be arranged at the 3rd wedge 013 and the 4th wedge 014 of second wedge, 012 upper surface.Wherein, first wedge 011 is arranged at the roll body foremost, and when promptly the carrying roller body rotated, first wedge 011 at first contacted with pole shape blank, and second wedge 012, the 3rd wedge 013 and the 4th wedge 014 are arranged successively backward.
In the prior art, the blank production process of connecting rod adopts the cross wedge rolling processing technology more, and its specific process can be as described below.
Along with the rotation of cross wedge rolling roll, first wedge 011 at first contacts with pole shape blank, and rolls out the first footpath section 01.The cross wedge rolling roll is rotated further, second wedge 012 contacts with blank, type groove between first wedge 011 and second wedge 012 makes blank form the second footpath section 02, and second wedge 012 will remove the diameter of the blank the first footpath section 01 and the second footpath section 02 rolling for and the 3rd section 04 diameter that equates directly.In second wedge, 012 rolling blank process, 013 beginning of the 3rd wedge contacts with blank, and then rolls out the 4th footpath section 05.The cross wedge rolling roll is rotated further, and the 4th wedge 014 contacts with blank, and rolls out the 5th footpath section 03, and the type groove between the 3rd wedge 013 and the 4th wedge 014 makes blank form the 3rd footpath section 04.
Connecting rod blank in forming process, be subjected to first roll and second roll tangential roll active force, the 5th footpath section the 03 and the 4th footpath section 05 easily deforms in forming process, and then makes that the connecting rod blank after the moulding is a bending.
Therefore, how to solve in the forming process, the flexible problem of connecting rod blank becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
In view of this, the invention provides a kind of cross wedge rolling die, to overcome flexible technical barrier in the connecting rod blank forming process.
A kind of cross wedge rolling die provided by the invention, comprise the roll body, and the periphery of described roll body be provided with first wedge that is positioned at its center, with second wedge, the 3rd wedge and the 4th wedge of the adjacent setting of described first wedge, also comprise the 5th wedge with the adjacent setting of described second wedge, and described the 3rd wedge is arranged at the upper surface of described the 5th wedge, and described the 4th wedge is arranged at the upper surface of described second wedge.
Preferably, the initiating terminal of described first wedge is positioned at the front end of the initiating terminal of described second wedge.
Preferably, the initiating terminal of described second wedge is positioned at the front end of described the 5th wedge initiating terminal.
Preferably, the initiating terminal of described the 3rd wedge is positioned at the front end of the initiating terminal of described the 4th wedge.
A kind of cross wedge rolling die provided by the invention, comprise the roll body, and the periphery of described roll body be provided with first wedge that is positioned at its center, with second wedge, the 3rd wedge and the 4th wedge of the adjacent setting of described first wedge, also comprise the 5th wedge with the adjacent setting of described second wedge, and described the 3rd wedge is arranged at the upper surface of described the 5th wedge, and described the 4th wedge is arranged at the upper surface of described second wedge.Need to prove, the adjacent setting of second wedge with the 5th wedge, be to have the type groove between the two, when roll rotation, no wedge device between second wedge and the 5th wedge, during the rolling blank of second wedge and the 5th wedge, blank between the two can be folded in the sidewall of the two, when the rolling blank of second wedge part and the rolling blank of the 5th wedge are partly desired to bend, blank between second wedge and the 5th wedge can be connected to the sidewall of second wedge and the 5th wedge, with the trend that stops that second wedge and the rolling blank of the 5th wedge partly bend.When same the 4th wedge and the 3rd wedge were rolled blank, this two-part blank was subject to the effect that is folded in blank between second wedge and the 5th wedge, made that connecting rod blank is difficult for bending in forming process.In addition, blank diameter between second wedge and the 5th wedge does not change, it is connected to the baffle plate of blank front and back position all the time in the forming process of connecting rod blank, and then, can effectively evade the problem that blank is collected together, so, can further evade the technical problem that bends in the connecting rod blank forming process.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a connecting rod blank structural representation in the prior art;
Fig. 2 is a cross wedge rolling roll deployed configuration schematic diagram in the prior art;
Fig. 3 is a cross wedge rolling die structural representation in the specific embodiment of the invention;
Fig. 4 is a cross wedge rolling roll deployed configuration schematic diagram in the specific embodiment of the invention;
Fig. 5 is a connecting rod blank structural representation in the specific embodiment of the invention.
The specific embodiment
The invention discloses a kind of cross wedge rolling die, to overcome flexible technical barrier in the connecting rod blank forming process.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 3-Fig. 4, Fig. 3 is a cross wedge rolling die structural representation in the specific embodiment of the invention; Fig. 4 is a cross wedge rolling roll deployed configuration schematic diagram in the specific embodiment of the invention.
A kind of cross wedge rolling die provided in the present embodiment comprises roll body 11.Should be appreciated that roll body 11 is two, and two roll bodies 11 match, in the process, the two rotates along equidirectional.Need the connecting rod blank of processing to be positioned between the two, extruded by mould in order to prevent blank, the workpiece front and back position has installed the baffle plate (not shown) respectively.
The periphery of roll body 11 be provided with first wedge 121 that is positioned at its center, with second wedge 122, the 3rd wedge 123 and the 4th wedge 124 of first wedge, 121 adjacent settings.
Need to prove that this specifically also comprises the 5th wedge 125 with the 122 adjacent settings of second wedge, and the 3rd wedge 123 is arranged at the upper surface of the 5th wedge 125, the 4th wedge 124 is arranged at the upper surface of second wedge 122.
Should be appreciated that cross wedge rolling die provided in the present embodiment, its second wedge 122, the 3rd wedge 123, the 4th wedge 124 and the 5th wedge 125 are two, and are the both sides that symmetrical centre is distributed in first wedge 121 with first wedge 121 all.
So be provided with, second wedge 122 and the 125 adjacent settings of the 5th wedge promptly have the type groove between the two.When roll rotation, no wedge device between second wedge 122 and the 5th wedge 125, when second wedge 122 and the 5th wedge rolled 125 base material, the blank diameter between the two was constant, and can be folded between the sidewall of second wedge and the 5th wedge.When the rolling blank part of second wedge 122 and the 5th wedge 125 rolling blanks are partly desired to bend, blank between second wedge 122 and the 5th wedge 125 can be connected to the sidewall of second wedge 122 and the 5th wedge 125, with the trend that stops that second wedge 122 and the 5th wedge 125 rolling blanks partly bend.
When same the 4th wedge 124 and 123 pairs of blanks of the 3rd wedge were rolled, this two-part blank was subject to the effect that is folded in blank between second wedge 122 and the 5th wedge 125, made that connecting rod blank is difficult for bending in forming process.In addition, the blank diameter between second wedge 122 and the 5th wedge 125 does not change, and it is connected to the baffle plate of blank front and back position all the time in the forming process of connecting rod blank, and then, can effectively evade the problem that blank is collected together.So, can further evade the technical problem that bends in the connecting rod blank forming process.
Obviously, cross wedge rolling die provided in the present embodiment can effectively be evaded in the process engineering problem that connecting rod blank bends.
Following content will describe in detail to cross wedge rolling die provided in the present embodiment in conjunction with specific process.
Please refer to Fig. 5, Fig. 5 is a connecting rod blank structural representation in the specific embodiment of the invention.
For example, desire utilizes cross wedge rolling die provided in the present embodiment that diameter is processed for the bar of 40mm, process connecting rod blank as shown in Figure 3, wherein the diameter of first of the connecting rod blank footpath section 131 requires to be 25mm, second footpath section 132 diameters require to be 40mm, the 3rd footpath section diameter requires to be 20mm, and the 5th footpath section 135 diameters require to be 20mm.Its detailed process can be as described below.
Along with the rotation of roll body 11, first wedge 121 at first contacts with blank, and then rolls out the first footpath section 131.Then, second wedge 122 contact with blank and it is carried out rolling for the first time, such as, can with the diameter of the 3rd footpath section 133 rolling be 28mm.Along with being rotated further of roll body 11, the 5th wedge 125 contact with blank and the 5th footpath section 135 is carried out rolling for the first time, such as, can with the diameter of the 5th footpath section 135 first rolling be 28mm.Need to prove that second wedge 122 and 125 pairs of blanks of the 5th wedge carry out in the first operation of rolling, the diameter of the footpath of the 4th between the two section 134 does not change, and promptly is 40mm always.
In the above-mentioned process, the 3rd footpath section the 133 and the 5th footpath section 135 is under the mould squeezing action, and the two has along the trend of the tangential direction generation deformation of roll body 11.Need to prove, when the 3rd footpath section the 133 and the 5th footpath section 135 bends, must cause that the footpath of the 4th between the two section 134 bends.Because the 4th footpath section 134 is folded between the sidewall of second wedge 122 and the 5th wedge 125, the 4th footpath section 134 bends and is obstructed, and then can effectively stop the 3rd footpath section the 133 and the 5th footpath section 135 to bend.
Along with being rotated further of roll body 11, the 3rd wedge 123 contacts with blank and the 5th footpath section 135 is rolled once more, and then makes the 5th footpath section 135 satisfy the requirement that diameter is 20mm.Then, roll body 11 is rotated further, and the 4th wedge 124 contacts with blank and the 3rd footpath section 133 is rolled once more, makes the 3rd footpath section 133 satisfy the requirement that diameter is 20mm.So, cross wedge rolling provided in the present embodiment has been finished the process to connecting rod blank.
Equally, when 124 pairs the 5th footpath sections of above-mentioned the 3rd wedge 123 and the 4th wedge the 135 and the 3rd footpath section 133 is rolled respectively, the 4th footpath section 134 diameters are constant all the time, and be folded in all the time between the sidewall of second wedge 122 and the 5th wedge 125, and then effectively stoped the 5th footpath section the 135 and the 3rd footpath section 133 to bend.
In addition, in the above-mentioned process, because the 4th footpath section 134 and second footpath section 132 diameters do not change all the time, these two sections blanks connect with baffle plate all the time.And then, effectively limited under the effect of roll pressed power the problem of blank generation play.
Be to be understood that, cross wedge rolling provided in the present embodiment, the initiating terminal of its first wedge 121 is positioned at the front end of the initiating terminal of second wedge 122, promptly along with the rotation of roll body 11, first wedge 121 at first is rolled blank, and then 122 pairs of blanks of second wedge are rolled.Certainly, cross wedge rolling provided in the present embodiment, the initiating terminal of its second wedge 122 also can be positioned at the front end of the initiating terminal of first wedge 121, and the present invention does not do concrete qualification.
In addition, the initiating terminal of second wedge 122 is positioned at the front end of the initiating terminal of the 5th wedge 125, and promptly along with the rotation of roll body 11, second wedge 122 at first carries out rolling for the first time to blank, and then 125 pairs of blanks of the 5th wedge carry out rolling for the first time.Certainly, cross wedge rolling provided in the present embodiment, the initiating terminal of its 5th wedge 125 also can be positioned at the front end of the initiating terminal of second wedge 122, and the present invention does not do concrete qualification.
Equally, the initiating terminal of the 3rd wedge 123 is positioned at the front end of the initiating terminal of the 4th wedge 124, and it is provided with identical substantially with the 5th wedge 125 positions relation with above-mentioned second wedge 122, and this paper repeats no more.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. cross wedge rolling die, comprise the roll body, and the periphery of described roll body be provided with first wedge that is positioned at its center, with second wedge, the 3rd wedge and the 4th wedge of the adjacent setting of described first wedge, it is characterized in that, also comprise the 5th wedge with the adjacent setting of described second wedge, and described the 3rd wedge is arranged at the upper surface of described the 5th wedge, and described the 4th wedge is arranged at the upper surface of described second wedge.
2. cross wedge rolling die as claimed in claim 1 is characterized in that the initiating terminal of described first wedge is positioned at the front end of the initiating terminal of described second wedge.
3. cross wedge rolling die as claimed in claim 2 is characterized in that the initiating terminal of described second wedge is positioned at the front end of described the 5th wedge initiating terminal.
4. cross wedge rolling die as claimed in claim 3 is characterized in that the initiating terminal of described the 3rd wedge is positioned at the front end of the initiating terminal of described the 4th wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101644905A CN102284490A (en) | 2011-06-17 | 2011-06-17 | Cross wedge rolling die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101644905A CN102284490A (en) | 2011-06-17 | 2011-06-17 | Cross wedge rolling die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284490A true CN102284490A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101644905A Pending CN102284490A (en) | 2011-06-17 | 2011-06-17 | Cross wedge rolling die |
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| Country | Link |
|---|---|
| CN (1) | CN102284490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837164A (en) * | 2012-09-22 | 2012-12-26 | 山东泰金精密成型制品有限公司 | Forging roll combined forming method of crank shaft for automobile engine and special upset die |
| CN109590334A (en) * | 2018-12-14 | 2019-04-09 | 山东汇锋传动股份有限公司 | Driving tapered gear shaft blank cross wedge rolling molding jig and its milling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61102336U (en) * | 1984-12-04 | 1986-06-30 | ||
| JPH11239839A (en) * | 1998-02-25 | 1999-09-07 | Saga Tekkosho Co Ltd | Die for cross rolling |
| CN1947884A (en) * | 2006-11-27 | 2007-04-18 | 北京科技大学 | Wedge cross-rolling two cycle roll-forming method for train shaft blank |
| CN201505666U (en) * | 2009-09-29 | 2010-06-16 | 莱芜市汇锋汽车轴齿有限公司 | Cross wedge rolling polywedge synchronous rolling automobile through shaft blank die |
| CN201768859U (en) * | 2010-06-22 | 2011-03-23 | 云南西仪工业股份有限公司 | Cross wedge rolling mould for connecting rod forge piece blank |
-
2011
- 2011-06-17 CN CN2011101644905A patent/CN102284490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61102336U (en) * | 1984-12-04 | 1986-06-30 | ||
| JPH11239839A (en) * | 1998-02-25 | 1999-09-07 | Saga Tekkosho Co Ltd | Die for cross rolling |
| CN1947884A (en) * | 2006-11-27 | 2007-04-18 | 北京科技大学 | Wedge cross-rolling two cycle roll-forming method for train shaft blank |
| CN201505666U (en) * | 2009-09-29 | 2010-06-16 | 莱芜市汇锋汽车轴齿有限公司 | Cross wedge rolling polywedge synchronous rolling automobile through shaft blank die |
| CN201768859U (en) * | 2010-06-22 | 2011-03-23 | 云南西仪工业股份有限公司 | Cross wedge rolling mould for connecting rod forge piece blank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837164A (en) * | 2012-09-22 | 2012-12-26 | 山东泰金精密成型制品有限公司 | Forging roll combined forming method of crank shaft for automobile engine and special upset die |
| CN109590334A (en) * | 2018-12-14 | 2019-04-09 | 山东汇锋传动股份有限公司 | Driving tapered gear shaft blank cross wedge rolling molding jig and its milling method |
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Application publication date: 20111221 |