CN1085139A - High precision pipe straightener - Google Patents
High precision pipe straightener Download PDFInfo
- Publication number
- CN1085139A CN1085139A CN 93116204 CN93116204A CN1085139A CN 1085139 A CN1085139 A CN 1085139A CN 93116204 CN93116204 CN 93116204 CN 93116204 A CN93116204 A CN 93116204A CN 1085139 A CN1085139 A CN 1085139A
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- straightener
- aligning
- roller
- link
- tubing
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Abstract
The present invention relates to a kind of high precision pipe straightener.In order to improve the flattening precision of tubing significantly, the present invention sets up an alternating expression aligning link of being made up of the smoothing roll of interlaced arrangement at least in the opposed type aligning link back of being made up of the smoothing roll of opposed layout.Opposed type aligning link mainly plays the correcting to the first strong and circularity of tubing linearity, and alternating expression aligning link is mainly used in the linearity that improves tubing.This straightener can make the linearity of tubing bring up to below 0.25%, and circularity then improves 30～50% than existing straightener.
Description
The present invention relates to a kind of equipment for straightening of round metal tubing, particularly a kind of high precision pipe straightener.
Present its smoothing roll of metal pipe material straightener both domestic and external all is symmetric arrangement basically, be that roller is in twos to being changed to one group, three groups of rollers are formed an aligning link, its typical version is the six-roller straightener that 2-2-2 distributes, as the employed six-roller straightener of Taiyuan mining machinery plant (former Soviet Union's product).
Tube straightening is different with the bar aligning, does not allow the flattening situation and occur in the aligning process.In addition, the requirement of linearity is arranged not only in aligning, also have the requirement on circularity and the diameter dimension precision.The aligning principle of existing six-roller straightener is: with the two ends roller is support, use the intermediate calender rolls application of force, also with rotation, promptly aligning carries out pipe in a spiral manner in reach, and opposed roller guarantees and its circularity and diameter precision are organized just by each.Except six-roller straightener, also have the five-roll machine of 2-1-2 distribution and seven roller straighteners that 2-2-2-1 distributes at present, they all are to increase, subtract a roller to derive from the basis of six-roller straightener, all belong to monocycle and save straight machine.With regard to present monocycle joint straightener, its flattening precision (linearity) is generally 1.5-3 ‰, but this precision still can not satisfy the requirement of some tubing, as the book wall tube material that is used to make automobile, motorcycle vibration absorber requires linearity＜0.25 ‰, and some tubing requires linearity even is higher.In order to improve flattening precision, the straightener of two roller strap convex-concave rollers of single roller seat is abroad arranged, it is said that its precision can reach 0.3 ‰, but since easily tubing is rectified split, circularity and surface quality be relatively poor, it is former thereby fail to be widely used that the tubing specification is restricted etc.So be basically on the basis of aforementioned six-roller straightener abroad at present to increase opposed roller number, promptly increase the aligning link and improve flattening precision, 14 roller straighteners that ten roller straighteners of arranging as the 2-2-2-2-2 of Britain BRONX company and the 2-2-2-2-2-2-2 of U.S. AETNA company arrange.The inventor thinks: increase opposed roller number and no doubt can improve flattening precision, but the raising of flattening precision is limited.Think that in the past the mode (being that smoothing roll is opposed in twos) with hold-down roller in cross roll formula aligning can increase the plastic zone, enlarges plastic hinge, and improve barrel length, increase aligning number of times, thereby can improve flattening precision, the present invention it is called this and is " just " effect.The inventor thinks that in an aligning link, the roller of symmetric arrangement (being hold-down roller) not only has " just " effect, also has " bearing " effect, is unfavorable for that promptly the effect of aligning has the curved effect of rectifying in other words.This mainly is that particularly the pipe that will align under the effect of a pair of hold-down roller in the end becomes curved again owing in the aligning middle roller also there is an anti-deformation in pipe, promptly aforesaid " bearing " effect.Just " bear " effect is littler than " just " effect, and this also is that monocycle saves the reason that the flattening precision of opposed type straightener can not improve.For what opposed type too many levels straightener, above-mentioned " bearing " effect still exists, so the raising of its flattening precision is limited.
The purpose of this invention is to provide a kind of high precision pipe straightener, the linearity behind its aligning can be less than 0.25 ‰.
The solution that realizes the object of the invention is: the high precision pipe straightener that is provided, at least comprise an opposed type aligning link of forming by the smoothing roll of three groups of opposed layouts, set up an alternating expression aligning link of forming by the smoothing roll of interlaced arrangement at least in aforesaid opposed type aligning link back.
Opposed type aligning link of the present invention is mainly used to apply deflection, reaches the purpose of common aligning, also plays a part to correct circularity simultaneously.In addition, because the opposed type roller can form complete cornerite to pipe, thereby make the aligning process stabilization.And alternating expression aligning link mainly plays a part further raising tubing linearity.According to preceding described, opposed hold-down roller has " bearing " effect to tubing, can significantly reduce " bearing " effect if remove hold-down roller, be again not all right but there is not opposed type aligning link, so the present invention has adopted the form of setting up alternating expression aligning link in the back of opposed type aligning link.The inventor thinks: the roller of interlaced arrangement mainly is recurvation tubing in the aligning process, and it can offset " bearing " effect that the front opposed roll is produced, and itself is also minimum to " bearing " effect of tubing simultaneously.Therefore, this too many levels straightener of being made up of opposed roll and staggered rollers can improve flattening precision greatly.
Alternating expression aligning link of the present invention can be one and half, promptly is made up of the smoothing roll of three interlaced arrangement; Also can be two and half, promptly form by the smoothing roll of five interlaced arrangement.Certainly also other number, but be advisable so that one and half or two and half alternating expression aligning link to be set.
In order to enlarge the specification limit that straightener is suitable for tubing, and guarantee that the tubing of size specification all can reach same precision, roll spacing of respectively aligning between link of the present invention can be designed to export gradually from entering the mouth to and reduce.With the exception of this, the structure of this change roll spacing also can increase the stability of aligning process.
The present invention is because the too many levels aligning structure that has adopted opposed roll to combine with staggered rollers, wherein opposed type aligning link is mainly used in the first strong and circularity rectification of linearity, and alternating expression aligning link is mainly used in the raising linearity, thereby can take into account simultaneously the linearity and the circularity of tubing.And existing opposed type straightener, the rectification of linearity and circularity is carried out in same link.So the present invention compares with existing straightener, the circularity that not only flattening precision height, and quilt is rectified tubing also improves a lot.In addition, the present invention is bigger to the scope of application of tubing specification, and flattening precision is more stable.
Accompanying drawing is the structural representation of one embodiment of the invention.
As shown in the figure: this straightener adopts an opposed type aligning link and two and half alternating expressions aligning link, totally ten one rollers.1～6 pair on roller is formed an aligning link to being arranged as three groups.Roller 7～11 is interlaced arrangement up and down all, and the pair of rolls 5,6 of its central roll 7,8 and front is formed second and aligned link; Roller 9, roller 10 are formed the 3rd aligning link with the roller 8 of front; Roller 11 is half aligning link with roller 10.Roll spacing T, T
1With T
2The pass be: T＞T
1＞T
2
11 rollers of this example are cross roll, are installed on the straightening machine body.Except that roller 7 is the driven roll because of being subjected to structural limitations, all the other each rollers are drive roll, and they are driven through reducing gear and universal-joint spindle by motor.Last each roller of row and the roller of arranging down 4 can move up and down, to adapt to the needs of different tube diameters.The amount of moving up and down of last row roller is by motor 12 drive screws 13, and drives roller frame 14 and move and regulate, its value through train 15 by needle dial 16 indications.The amount of moving up and down of lower roll 4 is by motor 17 drive screws 18, and drives roller frame 19 and move and regulate, its value through train 20 by needle dial 21 indications.
The specification limit that the straightener of this example can be rectified tubing is: tube outer diameter 18～76mm, and tube wall thickness 0.7～4.5mm, all the scope than existing six-roller straightener is big.Flattening precision: linearity is 0.08～0.15 ‰; The existing six-roller straightener of convexity ratio improves 30～50%, and the pipe outer surface of being rectified do not have scratch, can be directly as other part of damper cover, aviation pipe and the oil cylinder pipe etc. of motorcycle.
Claims (4)
1, high precision pipe straightener, at least comprise an opposed type aligning link of forming by the smoothing roll of three groups of opposed layouts, it is characterized in that setting up an alternating expression aligning link of forming by the smoothing roll of interlaced arrangement at least in aforesaid opposed type aligning link back.
2, straightener as claimed in claim 1 is characterized in that said alternating expression aligning link has one and half, is made up of the smoothing roll of three interlaced arrangement.
3, straightener as claimed in claim 1 is characterized in that said alternating expression aligning link has two and half, is made up of the smoothing roll of five interlaced arrangement.
4,, it is characterized in that respectively aligning roll spacing between link and export gradually from entering the mouth to and reduce as claim 1,2 or 3 described straighteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93116204 CN1027967C (en) | 1993-08-07 | 1993-08-07 | High Precision pipe straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93116204 CN1027967C (en) | 1993-08-07 | 1993-08-07 | High Precision pipe straightener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1085139A true CN1085139A (en) | 1994-04-13 |
| CN1027967C CN1027967C (en) | 1995-03-22 |
Family
ID=4991529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93116204 Expired - Fee Related CN1027967C (en) | 1993-08-07 | 1993-08-07 | High Precision pipe straightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027967C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190444B (en) * | 2006-11-30 | 2010-05-12 | 江苏宏宝集团有限公司 | Method for manufacturing titanium or titanium alloy tube of 12 to 16 meters |
| CN102151719A (en) * | 2011-01-31 | 2011-08-17 | 辽宁银捷机械装备制造有限公司 | High-accuracy straightening machine for tantalum-niobium alloy pipe |
| CN102527778A (en) * | 2012-03-05 | 2012-07-04 | 常熟市非凡金属制品有限公司 | Quenching and straightening machine for bar billets |
| CN102921749A (en) * | 2012-11-30 | 2013-02-13 | 攀钢集团成都钢钒有限公司 | Method for removing surface scale of chromium-containing seamless steel tube |
| CN112718929A (en) * | 2020-12-10 | 2021-04-30 | 中国重型机械研究院股份公司 | Combined round material straightening device and straightening method thereof |
-
1993
- 1993-08-07 CN CN 93116204 patent/CN1027967C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190444B (en) * | 2006-11-30 | 2010-05-12 | 江苏宏宝集团有限公司 | Method for manufacturing titanium or titanium alloy tube of 12 to 16 meters |
| CN102151719A (en) * | 2011-01-31 | 2011-08-17 | 辽宁银捷机械装备制造有限公司 | High-accuracy straightening machine for tantalum-niobium alloy pipe |
| CN102527778A (en) * | 2012-03-05 | 2012-07-04 | 常熟市非凡金属制品有限公司 | Quenching and straightening machine for bar billets |
| CN102527778B (en) * | 2012-03-05 | 2013-09-25 | 常熟市非凡金属制品有限公司 | Quenching and straightening machine for bar billets |
| CN102921749A (en) * | 2012-11-30 | 2013-02-13 | 攀钢集团成都钢钒有限公司 | Method for removing surface scale of chromium-containing seamless steel tube |
| CN102921749B (en) * | 2012-11-30 | 2015-03-04 | 攀钢集团成都钢钒有限公司 | Method for removing surface scale of chromium-containing seamless steel tube |
| CN112718929A (en) * | 2020-12-10 | 2021-04-30 | 中国重型机械研究院股份公司 | Combined round material straightening device and straightening method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027967C (en) | 1995-03-22 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |