CN102513410A - Radial runout measuring method for straightening machine long axis workpiece, and device thereof - Google Patents
Radial runout measuring method for straightening machine long axis workpiece, and device thereof Download PDFInfo
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- CN102513410A CN102513410A CN201110445111XA CN201110445111A CN102513410A CN 102513410 A CN102513410 A CN 102513410A CN 201110445111X A CN201110445111X A CN 201110445111XA CN 201110445111 A CN201110445111 A CN 201110445111A CN 102513410 A CN102513410 A CN 102513410A
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Abstract
The present invention relates to a radial runout measuring device for a straightening machine long axis workpiece, and belongs to the field of straightening machine manufacturing. According to the device, a left top tip and a right top tip are arranged on a work platform; the work platform forms a slidable connection with a work table; a motor forms a rotary connection with the left top tip; a photoelectric encoder and the right top tip are fixedly connected; and a tappet type displacement measuring device 1, a tappet type displacement measuring device 2 and a tappet type displacement measuring device 3 are respectively and fixedly connected with the work table. The method and the device of the present invention have the following advantages that: the full automatic measuring calculations of the whole radial runout and the local radial runout of the long axis workpiece on the straightening machine can be achieved, such that the total length radial runout measurement and the local radial runout measurement of the long axis workpiece can be achieved while the cost can be reduced; the method is simple and universal.
Description
Technical field
The invention belongs to the straightener field,, mainly propose a kind of measuring method to long axis workpiece radial beat eccentricity measuring technique, be applied to the long axis workpiece of factory's straightener whole with local heat treatmet after the radial beat eccentricity measurement.
Background technology
At present; During domestic straightener alignment long axis workpiece, the long axis workpiece radial beat eccentricity more than 3 meters is measured main the employing and is played dial gauge by hand, and the operator is according to the demonstration of the different measuring point of dial gauge; Observe high point by rule of thumb, on forcing press, the height point is carried out alignment then.Because workpiece is long, on workpiece, the many places bending can occur, and degree of crook; Direction is all inequality, so that this method requires the operator is high, and certainty of measurement is very low; And the current point alignment has often appearred, and other put the overproof situation that goes wrong.Workpiece of alignment is consuming time very long.
Summary of the invention
The present invention provides a kind of straightener long axis workpiece circular runout measuring method and device, and low to solve manual alignment certainty of measurement, measuring speed is slow, needs the gauger to have the drawback of a large amount of practical experiences.
The technical scheme that the present invention adopts is: have a left side top and right top on the workbench; Workbench and table rest are slidingly connected; Motor and top being rotationally connected in a left side; Photoelectric encoder is fixedly connected with table rest respectively with right top fixed connection the, tappet rod type displacement measuring device one, tappet rod type displacement measuring device two, tappet rod type displacement measuring device three.
Measuring method of the present invention is workpiece on the straightener to be divided in the measurement data of various piece measure several times, measures the data that 3 groups of workpiece rotate a circle at every turn, forms the data of all measurement points of workpiece at last.And then the calculating of the data of gathering being carried out the relative measurement method handles with FFT, and the result of the needs of formation at last comprises the following steps:
(1), with long axis workpiece with left top and right top the grasping on the workbench;
(2), move the straightener workbench to the rightmost side, long axis workpiece also moves to the rightmost side thereupon; With left top one week of rotation long axis workpiece, a weekly data of the tappet rod type displacement measuring device one below long axis workpiece, tappet rod type displacement measuring device two, three points of tappet rod type displacement measuring device three these workpiece of record;
(3), move the workbench of straightener to the left; Use left top one week of rotation long axis workpiece again, a weekly data of the tappet rod type displacement measuring device one below long axis workpiece, tappet rod type displacement measuring device two, tappet rod type displacement measuring device 3 these three points of this workpiece of record;
(4), continue above-mentioned process, long axis workpiece moves to left-most position on straightener, thereby the data of all measurement points of this workpiece are all measured;
(5), these data are carried out the after-treatment of relative measurement algorithm, concrete grammar is following:
A. obtain sensor in some tappet rod type displacement measuring devices with respect to the relative variation of sensor in the tappet rod type displacement measuring device of both sides; The home position is at A, B, C; Reposition is at a, b, c, can calculate the variation that the relative a point of b point and c are ordered from following formula:
Y=Xb?-（Xa+L1×（Xc-Xa）/（L1+L2））
Wherein: Y is the absolute deformation that b is ordered, Xa be a point to A point distance, Xb be the b point to B point distance, Xc be the c point to C point distance, L1 be A to the B distance, L2 is the distance of B to C;
B. selected current measurement point is b, and two-sided measurement point is respectively a and c, according to the relative measurement method formula, a weekly data of these 3 points is calculated respectively, forms one group of new data; By this method, measure long axis workpiece with respect to the radial beat eccentricity of two ends reference point with measure long axis workpiece local radial jerk value;
C. constantly repeat the b step, up to forming whole with the local relative measurement data of many group leaders shaft-like work;
(6) many groups of obtaining cenotype of step (five) is analyzed measurement data; So that obtain the peak and the corresponding angle of peak of many sets of curves; In order to eliminate the influence that oval error, burr error are brought, adopt FFT that data are handled, take out the amplitude and the peak angle of the sinusoidal line of 1Hz; Like this, just realized analytic process to all data of alignment workpiece.
The invention has the advantages that all automatic measurement that can realize and local radial beat eccentricity whole to the long axis workpiece on the straightener calculates, the tappet rod type displacement measuring device only adopts 3, and method is general, is fit to very much computer and carries out the processing of corresponding data.Move the rotation top through control straightener workbench with a left side; Can realize the measurement of long axis workpiece, and the quantity of tappet rod type displacement measuring device only there are 3, when reducing cost; Long axis workpiece total length and local radial beat eccentricity measurement, method simple, general-purpose have been realized.
Description of drawings
Fig. 1 is a structural representation of the present invention, is the state diagram of tappet rod type displacement measuring device during near the workpiece leftmost side;
Fig. 2 is that workbench is moved to the left state diagram once;
Fig. 3 is that the location of workpiece changes sketch map;
Fig. 4 is that FFT is to the error exploded view.
The specific embodiment
A left side top 2 and right top 8 is arranged on the workbench 6; Workbench 6 is slidingly connected with table rest 7; Motor 1 is rotationally connected with a left side top 2; Photoelectric encoder 9 is fixedly connected with right top 8, and tappet rod type displacement measuring device 1, tappet rod type displacement measuring device 24, tappet rod type displacement measuring device 35 are fixedly connected with table rest 7 respectively.
Fig. 1 is the sketch map that the long axis workpiece of straightener is measured; Two top can clamping long axis workpiece 10; Workbench 6 can drive long axis workpiece 7 to the left or to the right and move, and realizes the measurement of long axis workpiece different measuring point, and motor 1 drives a left side top 2 and realizes long axis workpiece 7 rotations; Right top 8 servo-actuateds drive photoelectric encoder 9 rotations.
The present invention is work like this:
(1), left top 2 on the long axis workpiece 10 usefulness workbenches 6 and right top 8 is grasped;
(2), move straightener workbench 6 to the rightmost side, long axis workpiece 10 also moves to the rightmost side thereupon; With top 2 rotation 10 1 weeks of long axis workpiece of a left side, a weekly data of the tappet rod type displacement measuring device 1 below long axis workpiece 10, tappet rod type displacement measuring device 24, three points of tappet rod type displacement measuring device 35 these workpiece of record;
(3), move the workbench 6 of straightener to the left; Again with top 2 rotation 10 1 weeks of long axis workpiece of a left side; One weekly data of the tappet rod type displacement measuring device 1 below long axis workpiece 10, tappet rod type displacement measuring device 24, tappet rod type displacement measuring device 35 these three points of this workpiece of record is referring to Fig. 2;
(4), continue above-mentioned process, long axis workpiece 10 moves to left-most position on straightener, thereby the data of all measurement points of this workpiece are all measured;
(5), these data are carried out the after-treatment of relative measurement algorithm, concrete grammar is following:
A. obtain sensor in some tappet rod type displacement measuring devices with respect to the relative variation of sensor in the tappet rod type displacement measuring device of both sides; Referring to Fig. 3; The home position is at A, B, C, and reposition is at a, b, c, can calculate the variation that the relative a point of b point and c are ordered from following formula:
Y=Xb?-（Xa+L1×（Xc-Xa）/（L1+L2））
Wherein: Y is the absolute deformation that b is ordered, Xa be a point to A point distance, Xb be the b point to B point distance, Xc be the c point to C point distance, L1 be A to the B distance, L2 is the distance of B to C;
B. selected current measurement point is b, and two-sided measurement point is respectively a and c, according to the relative measurement method formula, a weekly data of these 3 points is calculated respectively, forms one group of new data; By this method, measure long axis workpiece 10 with respect to the radial beat eccentricity of two ends reference point with measure long axis workpiece 10 local radial jerk values;
C. constantly repeat the b step, up to forming many group leaders shaft-like work 10 integral body and local relative measurement data;
(6) many groups of obtaining cenotype of step (five) is analyzed measurement data, so that obtain the corresponding angle of peak and peak of many sets of curves, in order to eliminate the influence that oval error, burr error are brought; Adopt FFT that data are handled, take out the amplitude and the peak angle of the sinusoidal line of 1Hz, like this; Just realized analytic process to all data of alignment workpiece; FFT can form 2Hz, and the amplitude of the signal of multiple rates such as 3Hz and maximum amplitude point angle are if having ellipse and burr on the workpiece; All belong to the above signal of 2Hz; If we only extract the data of 1Hz signal, just can eliminate oval sum of errors surface of the work burr error, referring to Fig. 4.
Claims (2)
1. straightener long axis workpiece circular runout measuring device; It is characterized in that: have a left side top and right top on the workbench; Workbench and table rest are slidingly connected; Motor and top being rotationally connected in a left side, photoelectric encoder is fixedly connected with table rest respectively with right top fixed connection the, tappet rod type displacement measuring device one, tappet rod type displacement measuring device two, tappet rod type displacement measuring device three.
2. a straightener long axis workpiece circular runout measuring method is characterized in that comprising the following steps:
(1), with long axis workpiece with left top and right top the grasping on the workbench;
(2), move the straightener workbench to the rightmost side, long axis workpiece also moves to the rightmost side thereupon; With left top one week of rotation long axis workpiece, a weekly data of the tappet rod type displacement measuring device one below long axis workpiece, tappet rod type displacement measuring device two, three points of tappet rod type displacement measuring device three these workpiece of record;
(3), move the workbench of straightener to the left; Use left top one week of rotation long axis workpiece again, a weekly data of the tappet rod type displacement measuring device one below long axis workpiece, tappet rod type displacement measuring device two, tappet rod type displacement measuring device 3 these three points of this workpiece of record;
(4), continue above-mentioned process, long axis workpiece moves to left-most position on straightener, thereby the data of all measurement points of this workpiece are all measured;
(5), these data are carried out the after-treatment of relative measurement algorithm, concrete grammar is following:
A. obtain sensor in some tappet rod type displacement measuring devices with respect to the relative variation of sensor in the tappet rod type displacement measuring device of both sides; The home position is at A, B, C; Reposition is at a, b, c, can calculate the variation that the relative a point of b point and c are ordered from following formula:
Y=Xb?-（Xa+L1×（Xc-Xa）/（L1+L2））
Wherein: Y is the absolute deformation that b is ordered, Xa be a point to A point distance, Xb be the b point to B point distance, Xc be the c point to C point distance, L1 be A to the B distance, L2 is the distance of B to C;
B. selected current measurement point is b, and two-sided measurement point is respectively a and c, according to the relative measurement method formula, a weekly data of these 3 points is calculated respectively, forms one group of new data; By this method, measure long axis workpiece with respect to the radial beat eccentricity of two ends reference point with measure long axis workpiece local radial jerk value;
C. constantly repeat the b step, up to forming whole with the local relative measurement data of many group leaders shaft-like work;
(6) many groups of obtaining cenotype of step (five) is analyzed measurement data; So that obtain the peak and the corresponding angle of peak of many sets of curves; In order to eliminate the influence that oval error, burr error are brought, adopt FFT that data are handled, take out the amplitude and the peak angle of the sinusoidal line of 1Hz; Like this, just realized analytic process to all data of alignment workpiece.
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| CN201110445111.XA CN102513410B (en) | 2011-12-27 | 2011-12-27 | Radial runout measuring method for straightening machine long axis workpiece, and device thereof |
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| CN201110445111.XA CN102513410B (en) | 2011-12-27 | 2011-12-27 | Radial runout measuring method for straightening machine long axis workpiece, and device thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394550A (en) * | 2013-07-29 | 2013-11-20 | 长春机械科学研究院有限公司 | Non-contact straightening point confirming method for straightness of rectangular-section long-rail work piece |
| CN104482848A (en) * | 2014-12-10 | 2015-04-01 | 南通瑞力体育用品有限公司 | Measuring and straightening integrated equipment and measuring method |
| CN105598753A (en) * | 2015-12-28 | 2016-05-25 | 常熟市尚高机械设备有限公司 | Device special for grinding thin and long stainless steel shaft |
| CN108500837A (en) * | 2017-09-19 | 2018-09-07 | 万向钱潮股份有限公司 | A kind of shaft aligning method that flawless generates |
| CN108856367A (en) * | 2018-05-24 | 2018-11-23 | 哈尔滨汽轮机厂有限责任公司 | A kind of valve rod bending deformation straightening technology |
| CN110586698A (en) * | 2019-10-29 | 2019-12-20 | 重庆和坊机械有限责任公司 | Ultralong shaft straightening machine |
| CN111842553A (en) * | 2020-07-30 | 2020-10-30 | 成都光明派特贵金属有限公司 | Method for straightening main shaft of noble metal stirring rod |
| CN112192320A (en) * | 2020-09-23 | 2021-01-08 | 常州机电职业技术学院 | Device and method for detecting maximum deformation of workpiece in four-axis numerical control machine tool machining |
| CN113231492A (en) * | 2021-07-08 | 2021-08-10 | 南通市力行机械制造有限公司 | Straightening device for production and processing of weight lifting rod |
Citations (3)
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| CN201329377Y (en) * | 2008-11-28 | 2009-10-21 | 成都鼎胜科技发展有限责任公司 | Drilling tool hydraulic full automatic straightening machine |
| CN101862767A (en) * | 2010-05-27 | 2010-10-20 | 中国海洋石油总公司 | Automation straightener for drilling tool |
| CN201644560U (en) * | 2010-03-23 | 2010-11-24 | 龙岩市山力工程液压有限公司 | Hydraulic corrector |
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2011
- 2011-12-27 CN CN201110445111.XA patent/CN102513410B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201329377Y (en) * | 2008-11-28 | 2009-10-21 | 成都鼎胜科技发展有限责任公司 | Drilling tool hydraulic full automatic straightening machine |
| CN201644560U (en) * | 2010-03-23 | 2010-11-24 | 龙岩市山力工程液压有限公司 | Hydraulic corrector |
| CN101862767A (en) * | 2010-05-27 | 2010-10-20 | 中国海洋石油总公司 | Automation straightener for drilling tool |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394550A (en) * | 2013-07-29 | 2013-11-20 | 长春机械科学研究院有限公司 | Non-contact straightening point confirming method for straightness of rectangular-section long-rail work piece |
| CN104482848A (en) * | 2014-12-10 | 2015-04-01 | 南通瑞力体育用品有限公司 | Measuring and straightening integrated equipment and measuring method |
| CN105598753A (en) * | 2015-12-28 | 2016-05-25 | 常熟市尚高机械设备有限公司 | Device special for grinding thin and long stainless steel shaft |
| CN108500837A (en) * | 2017-09-19 | 2018-09-07 | 万向钱潮股份有限公司 | A kind of shaft aligning method that flawless generates |
| CN108856367A (en) * | 2018-05-24 | 2018-11-23 | 哈尔滨汽轮机厂有限责任公司 | A kind of valve rod bending deformation straightening technology |
| CN110586698A (en) * | 2019-10-29 | 2019-12-20 | 重庆和坊机械有限责任公司 | Ultralong shaft straightening machine |
| CN111842553A (en) * | 2020-07-30 | 2020-10-30 | 成都光明派特贵金属有限公司 | Method for straightening main shaft of noble metal stirring rod |
| CN111842553B (en) * | 2020-07-30 | 2022-04-01 | 成都光明派特贵金属有限公司 | Method for straightening main shaft of noble metal stirring rod |
| CN112192320A (en) * | 2020-09-23 | 2021-01-08 | 常州机电职业技术学院 | Device and method for detecting maximum deformation of workpiece in four-axis numerical control machine tool machining |
| CN112192320B (en) * | 2020-09-23 | 2021-10-22 | 常州机电职业技术学院 | Device and method for detecting maximum deformation of workpiece in four-axis numerical control machine tool machining |
| CN113231492A (en) * | 2021-07-08 | 2021-08-10 | 南通市力行机械制造有限公司 | Straightening device for production and processing of weight lifting rod |
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