CN101929852A - Method for detecting coaxiality and verticality of large container by optical instrument - Google Patents
Method for detecting coaxiality and verticality of large container by optical instrument Download PDFInfo
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- CN101929852A CN101929852A CN201010250270XA CN201010250270A CN101929852A CN 101929852 A CN101929852 A CN 101929852A CN 201010250270X A CN201010250270X A CN 201010250270XA CN 201010250270 A CN201010250270 A CN 201010250270A CN 101929852 A CN101929852 A CN 101929852A
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Abstract
The invention relates to a method for detecting coaxiality and verticality of a large container by an optical instrument. The large petrochemical containers have common characteristics such as complicated structure, large geometric dimension and high manufacturing precision requirement. The method for detecting coaxiality and verticality of the large container by the optical instrument comprises the two steps of: (1) establishing a datum axis line by using a micro-alignment telescope, mounting a triangular centre bracket at a measured seal head, and reading an offset value of the bracket centre relative to the datum axis line by a micro-drumwheel; and (2) arranging a verticality measuring scale at the end face of the measured seal head, enabling an auto-collimation image to be completely superposed with a local image with an auto-collimation method when a reflector or a large reflection object in front of the telescope is vertical to the principal optical axis of the telescope, if the auto-collimation image is not superposed with the local image, adjusting the included angle between the large reflection object and the principal optical axis of the telescope to enable the auto-collimation image to be completely superposed with the local image, and computing the value of the verticality by using the scale value of a displacement graticule on the telescope and the read value of the micro-drumwheel. The invention is used for detecting the coaxiality and the verticality of the large container.
Description
Technical field:
The present invention relates to a kind of method of utilizing optical instrument detection receptacle right alignment and verticality, be specifically related to the method that a kind of optical instrument detects tun right alignment and verticality.
Background technology:
Large-scale petrochemical container shapes sum of errors site error is an outwardness, and the large-scale petrochemical container has a common characteristic: complex structure, physical dimension is big, and manufacturing accuracy requires high (existing right alignment and verticality precision require), and promptly its detection difficulty strengthens.In the detection adjustment process of tun right alignment and verticality, verticality changes the generation deviation thereupon after the adjustment right alignment, and in like manner, the deviation that the adjustment of verticality also drives right alignment produces, and as seen its adjustment difficulty is big.Common how much measurers that the traditional detection tun adopts detect, and low precision, cycle are long, the expense height, and can't satisfy the requirement of existing product measuring accuracy,
Summary of the invention:
The purpose of this invention is to provide a kind of method of utilizing optical instrument to detect tun right alignment and verticality.
Above-mentioned purpose realizes by following technical scheme:
Optical instrument detects the method for tun right alignment and verticality, the first step, utilize micr-alignment telescope to set up the benchmark axial line, at tested end socket the triangle center bearing bracket is installed then, microdrum reads the deviate of carriage center relative datum axial line, second step, at tested end socket end face the squareness measurement chi is installed, utilize the autocollimation method, when the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, autocollimator image and self-image overlap fully, as not overlapping, adjust the reflection general objective and autocollimator image and self-image are overlapped fully, utilize the scale value of telescope top offset graticule and the numerical value that the microdrum reading value draws the verticality of wanting as calculated with telescope primary optical axis angle.
Optical instrument detects the method for tun right alignment and verticality: at first set up the benchmark axial line with micr-alignment telescope by two center bearing bracket targets, at tested end socket the triangle center bearing bracket is installed then, read the relative misalignment of axe in center with microdrum, calculate right alignment numerical value, at tested end socket end face the squareness measurement chi is installed afterwards, by micr-alignment telescope to the catoptron autocollimation on its plane; When the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, just can see in the telescope ocular that tilt graticule autocollimator image and tilt graticule self-image overlap fully; As not overlapping, just show reflection general objective and telescope primary optical axis out of plumb, again through be adjusted to qualified after its verticality can utilize computing formula to draw the numerical value of the verticality of wanting as calculated from the scale value and the microdrum reading value of telescope top offset graticule.
Described optical instrument detects the method for tun right alignment and verticality, described computing formula is to be foundation with automatic principle of reflection, the plane of reflection is positioned at telescope the place ahead, distance apart from displacement graticule is L, the displacement graduation becomes mirror image at catoptron the same hereinafter distance L place, regulate the image focu of focusing handwheel to displacement graticule, if the displacement graticule center that resembles does not overlap with the tilt graticule center, then the plane of reflection is for tilt alpha angle, telescope primary optical axis upright position, and inclination alpha is calculated by following formula:
α=X/2L (radian) ... ... ... ... .... X is the distance of the center of displacement graticule elephant to datum line in (1) formula, and the X value is asked by the indicating value of annulus size and microdrum on the displacement graticule:
R is an annular radii in X=R ± b................................... (2) formula, and b is the microdrum indicating value, will get in (2) formula substitution (1) formula:
α＝(R/2±b/2)/L
Promptly in actual use: α=(label ± 1/2 microdrum reading)/distance.
Beneficial effect of the present invention:
1. the present invention has carried out repeatedly testing research and on-the-spot the detection, all can measure the right alignment and the verticality of tuns such as gasification burner quickly and easily; Realize autonomous measurement, saved targets such as measurement expense.
2. the present invention utilizes center bearing bracket target and squareness measurement chi frock, has solved direction and this key issue of site error of adjusting testee with the monitoring of optical instruments such as micr-alignment telescope down.And can guarantee the requirement of measuring accuracy and adjustment, shortened sense cycle.
3. the present invention utilizes a kind of method with optics instrument detecting tun right alignment and verticality, with my company's tun manufacturing accuracy 6mm by the past, has brought up to 3mm for 0.5 °, 5 '.This technological invention has improved the competitiveness of our company at product manufacturing industry for testing provides favourable experience.
4. the invention solves and measure and adjust orientation error and site error problem; This detection method of adjustment is easy, and quick, accuracy is strong.
Embodiment:
Embodiment 1:
Optical instrument detects the method for tun right alignment and verticality, the first step, utilize micr-alignment telescope to set up the benchmark axial line, at tested end socket the triangle center bearing bracket is installed then, microdrum reads the deviate (promptly equaling right alignment) of carriage center relative datum axial line, second step, at tested end socket end face the squareness measurement chi is installed, utilize the autocollimation method, when the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, autocollimator image and self-image overlap fully, as not overlapping, adjust the reflection general objective and autocollimator image and self-image are overlapped fully, utilize the scale value of telescope top offset graticule and the numerical value that the microdrum reading value draws the verticality of wanting as calculated with telescope primary optical axis angle.
Embodiment 2:
Optical instrument detects the method for tun right alignment and verticality, at first set up the benchmark axial line by two center bearing bracket targets with micr-alignment telescope, at tested end socket the triangle center bearing bracket is installed then, read the relative misalignment of axe in center with microdrum, calculate right alignment numerical value, at tested end socket end face the squareness measurement chi is installed afterwards, by micr-alignment telescope to the catoptron autocollimation on its plane; When the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, just can see in the telescope ocular that tilt graticule autocollimator image and tilt graticule self-image overlap fully; As not overlapping, just show reflection general objective and telescope primary optical axis out of plumb, again through be adjusted to qualified after its verticality can utilize computing formula to draw the numerical value of the verticality of wanting as calculated from the scale value and the microdrum reading value of telescope top offset graticule.
Embodiment 3:
Embodiment 1 or 2 described optical instruments detect the method for tun right alignment and verticality, described computing formula is to be foundation with automatic principle of reflection, the plane of reflection is positioned at telescope the place ahead, distance apart from displacement graticule is L, the displacement graduation becomes mirror image at catoptron the same hereinafter distance L place, regulate the image focu of focusing handwheel to displacement graticule, if the displacement graticule center that resembles does not overlap with the tilt graticule center, then the plane of reflection is for tilt alpha angle, telescope primary optical axis upright position, and the inclination angle is calculated by the α following formula:
α=X/2L (radian) ... ... ... ... X is the distance of the center of displacement graticule elephant to datum line in .. (1) formula, and the X value is asked by the indicating value of annulus size and microdrum on the displacement graticule:
R is an annular radii in X=R ± b................................. (2) formula, and b is the microdrum indicating value, will get in (2) formula substitution (1) formula:
α＝(R/2±b/2)/L
Promptly in actual use: α=(label ± 1/2 microdrum reading)/distance.
Claims (3)
1. an optical instrument detects the method for tun right alignment and verticality, it is characterized in that: the first step, utilize micr-alignment telescope to set up the benchmark axial line, at tested end socket the triangle center bearing bracket is installed then, microdrum reads the deviate of carriage center relative datum axial line, second step, at tested end socket end face the squareness measurement chi is installed, utilize the autocollimation method, when the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, autocollimator image and self-image overlap fully, as not overlapping, adjust the reflection general objective and autocollimator image and self-image are overlapped fully, utilize the scale value of telescope top offset graticule and the numerical value that the microdrum reading value draws the verticality of wanting as calculated with telescope primary optical axis angle.
2. an optical instrument detects the method for tun right alignment and verticality, it is characterized in that: at first set up the benchmark axial line by two center bearing bracket targets with micr-alignment telescope, at tested end socket the triangle center bearing bracket is installed then, read the relative misalignment of axe in center with microdrum, calculate right alignment numerical value, at tested end socket end face the squareness measurement chi is installed afterwards, by micr-alignment telescope to the catoptron autocollimation on its plane; When the catoptron in telescope the place ahead or reflection general objective are vertical with the telescope primary optical axis, just can see in the telescope ocular that tilt graticule autocollimator image and tilt graticule self-image overlap fully; As not overlapping, just show reflection general objective and telescope primary optical axis out of plumb, again through be adjusted to qualified after its verticality can utilize computing formula to draw the numerical value of the verticality of wanting as calculated from the scale value and the microdrum reading value of telescope top offset graticule.
3. optical instrument according to claim 1 detects the method for tun right alignment and verticality, it is characterized in that: described computing formula is to be foundation with automatic principle of reflection, the plane of reflection is positioned at telescope the place ahead, distance apart from displacement graticule is L, the displacement graduation becomes mirror image at catoptron the same hereinafter distance L place, regulate the image focu of focusing handwheel to displacement graticule, if the displacement graticule center that resembles does not overlap with the tilt graticule center, then the plane of reflection is for tilt alpha angle, telescope primary optical axis upright position, and inclination alpha is calculated by following formula:
α=X/2L (radian) ... ... ... ... ... X is the distance of the center of displacement graticule elephant to datum line in .. (1) formula, and the X value is asked by the indicating value of annulus size and microdrum on the displacement graticule:
R is an annular radii in X=R ± b............................... (2) formula, and b is the microdrum indicating value, will get in (2) formula substitution (1) formula:
α＝(R/2±b/2)/L
Promptly in actual use: α=(label ± 1/2 microdrum reading)/distance.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252635A (en) * | 2011-06-23 | 2011-11-23 | 中国科学院西安光学精密机械研究所 | Interference fringe verticality measuring method |
| CN102430887A (en) * | 2011-08-31 | 2012-05-02 | 上海锅炉厂有限公司 | Method for assembling and detecting internal members of ultralong apparatus |
| CN104154881A (en) * | 2014-07-14 | 2014-11-19 | 中国科学院长春光学精密机械与物理研究所 | Measuring method for parallelism error of shaft hole end face of telescope four-way |
| CN105414957A (en) * | 2015-12-03 | 2016-03-23 | 中国航空工业集团公司洛阳电光设备研究所 | Coaxial assembly method for shaft components and coaxiality detection method for shaft components |
| CN105758339A (en) * | 2016-03-17 | 2016-07-13 | 中国计量学院 | Optical axis and object plane verticality detection method based on geometric error correction technology |
| CN106441165A (en) * | 2016-08-30 | 2017-02-22 | 哈尔滨锅炉厂有限责任公司 | Detecting method for compensating and calculating container coaxiality |
| CN106556359A (en) * | 2016-11-25 | 2017-04-05 | 中车戚墅堰机车有限公司 | The method that body axiality is detected using body coaxality measuring mechanism |
| CN107702664A (en) * | 2017-10-24 | 2018-02-16 | 北京信息科技大学 | A kind of reflective system for detecting verticality and method based on semiconductor laser alignment |
| CN109470212A (en) * | 2018-11-22 | 2019-03-15 | 国网天津市电力公司电力科学研究院 | A kind of Lightning-Rod Protection Disign In Substations shaft tower gradient detecting instrument and its application method |
| CN109945820A (en) * | 2019-03-22 | 2019-06-28 | 山西阳煤化工机械（集团）有限公司 | A kind of gasification furnace coil pipe installation method for measuring coaxiality |
| CN111551134A (en) * | 2020-06-09 | 2020-08-18 | 哈尔滨锅炉厂有限责任公司 | Method for detecting integral coaxiality during assembling of gasification furnace |
| CN111578868A (en) * | 2020-06-09 | 2020-08-25 | 哈尔滨锅炉厂有限责任公司 | Detection method for perpendicularity of end face of sealing head during assembling of gasification furnace |
| CN111899218A (en) * | 2020-06-28 | 2020-11-06 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
| CN112097692A (en) * | 2020-09-01 | 2020-12-18 | 长春工程学院 | Method and system for dynamically measuring wheel pair verticality |
| CN107270839B (en) * | 2017-08-09 | 2023-10-20 | 西北核技术研究所 | Device and method for measuring coaxiality of rotator in hole |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252635A (en) * | 2011-06-23 | 2011-11-23 | 中国科学院西安光学精密机械研究所 | Interference fringe verticality measuring method |
| CN102252635B (en) * | 2011-06-23 | 2012-08-29 | 中国科学院西安光学精密机械研究所 | Interference fringe verticality measuring method |
| CN102430887A (en) * | 2011-08-31 | 2012-05-02 | 上海锅炉厂有限公司 | Method for assembling and detecting internal members of ultralong apparatus |
| WO2013029353A1 (en) * | 2011-08-31 | 2013-03-07 | 上海锅炉厂有限公司 | Method for assembling and detecting inner parts of super-long device |
| CN102430887B (en) * | 2011-08-31 | 2014-04-09 | 上海锅炉厂有限公司 | Method for assembling and detecting internal members of ultralong apparatus |
| CN104154881A (en) * | 2014-07-14 | 2014-11-19 | 中国科学院长春光学精密机械与物理研究所 | Measuring method for parallelism error of shaft hole end face of telescope four-way |
| CN104154881B (en) * | 2014-07-14 | 2017-02-15 | 中国科学院长春光学精密机械与物理研究所 | Measuring method for parallelism error of shaft hole end face of telescope four-way |
| CN105414957A (en) * | 2015-12-03 | 2016-03-23 | 中国航空工业集团公司洛阳电光设备研究所 | Coaxial assembly method for shaft components and coaxiality detection method for shaft components |
| CN105758339A (en) * | 2016-03-17 | 2016-07-13 | 中国计量学院 | Optical axis and object plane verticality detection method based on geometric error correction technology |
| CN106441165A (en) * | 2016-08-30 | 2017-02-22 | 哈尔滨锅炉厂有限责任公司 | Detecting method for compensating and calculating container coaxiality |
| CN106556359A (en) * | 2016-11-25 | 2017-04-05 | 中车戚墅堰机车有限公司 | The method that body axiality is detected using body coaxality measuring mechanism |
| CN107270839B (en) * | 2017-08-09 | 2023-10-20 | 西北核技术研究所 | Device and method for measuring coaxiality of rotator in hole |
| CN107702664A (en) * | 2017-10-24 | 2018-02-16 | 北京信息科技大学 | A kind of reflective system for detecting verticality and method based on semiconductor laser alignment |
| CN109470212A (en) * | 2018-11-22 | 2019-03-15 | 国网天津市电力公司电力科学研究院 | A kind of Lightning-Rod Protection Disign In Substations shaft tower gradient detecting instrument and its application method |
| CN109945820A (en) * | 2019-03-22 | 2019-06-28 | 山西阳煤化工机械（集团）有限公司 | A kind of gasification furnace coil pipe installation method for measuring coaxiality |
| CN111551134A (en) * | 2020-06-09 | 2020-08-18 | 哈尔滨锅炉厂有限责任公司 | Method for detecting integral coaxiality during assembling of gasification furnace |
| CN111578868A (en) * | 2020-06-09 | 2020-08-25 | 哈尔滨锅炉厂有限责任公司 | Detection method for perpendicularity of end face of sealing head during assembling of gasification furnace |
| CN111899218A (en) * | 2020-06-28 | 2020-11-06 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
| CN111899218B (en) * | 2020-06-28 | 2023-09-05 | 中国电子科技集团公司第四十四研究所 | Detector coaxiality detection system and method based on camera image processing |
| CN112097692A (en) * | 2020-09-01 | 2020-12-18 | 长春工程学院 | Method and system for dynamically measuring wheel pair verticality |
| CN112097692B (en) * | 2020-09-01 | 2021-09-14 | 长春工程学院 | Method and system for dynamically measuring wheel pair verticality |
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