CN103234453B - Based on the detection method of the special-shaped component geometrical axis position relationship of space length - Google Patents
Based on the detection method of the special-shaped component geometrical axis position relationship of space length Download PDFInfo
- Publication number
- CN103234453B CN103234453B CN201310128614.3A CN201310128614A CN103234453B CN 103234453 B CN103234453 B CN 103234453B CN 201310128614 A CN201310128614 A CN 201310128614A CN 103234453 B CN103234453 B CN 103234453B
- Authority
- CN
- China
- Prior art keywords
- special
- shaped component
- coordinate
- axial lines
- utilizes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 8
- 239000000284 extract Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a kind of detection method of the special-shaped component geometrical axis position relationship based on space length, by two high precision scanner scanning special-shaped components, cloud data under acquisition arbitrary coordinate, point cloud matching, extract and calculate the axis of two components, do you calculate two axial lines distance d, when meeting
Description
Technical field
The invention belongs to and measure detection technique field, be specifically related to a kind of detection method of the special-shaped component geometrical axis position relationship based on space length.
Background technology
Special-shaped component is widely used in various building structure and engineering structure, as electric transmission pole tower, handling machinery, bridge, boats and ships, reaction tower etc.The physical dimension of special-shaped component is the major parameter judging that whether special-shaped component is qualified, in some building structure and engineering structure (as the steel angle structure iron tower of power transmission line of various electric pressure, broadcasting television tower, Microwave Communication Tower, substation truss), this parameter is spliced smoothly the scene of dependency structure and performance has larger impact.Therefore, need the physical dimension of special-shaped component is carried out to Precision measurement and strictly controlled.At present, suitable special-shaped component physical dimension accurate detecting method is not also had both at home and abroad.Practices well does not carry out Precision measurement to the physical dimension of special-shaped component, only traditionally detects roughly.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of detection method of the special-shaped component geometrical axis position relationship based on space length, realize special-shaped component physical dimension on-the-spot high precision, quick obtaining, determine the axial space relation of special-shaped component, calculating axis angle value and design load compare, judge that whether special-shaped component is qualified according to comparative result, thus realize performance and the quality control of special-shaped component physical dimension Precision measurement and various structure.
The apprizing system of sample treatment plant is for realizing above-mentioned technical purpose, and reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
Based on the detection method of the special-shaped component geometrical axis position relationship of space length, comprise the following steps:
Step 1) selects two high-precision three-dimensional laser scanners staggered relatively, is positioned over arbitrarily by special-shaped component to be detected between the two on lifting table;
Step 2) target is set, set up member designs Value Data storehouse;
Step 3) by lifting of lifting table, utilizes three-dimensional laser scanner to scan special-shaped component, obtains the cloud data under special-shaped component arbitrary system, the form of cloud data be (
)
;
Step 4), according to the target arranged, utilizes the sphere centre coordinate of target ball as reference mark, mates the cloud data of two scanners, by the coordinate unification of two scanners;
Step 5) extracts the cloud data at component 1 place, its coordinate be (
)
, extract the cloud data of two place's differing heights sections of component 1, utilize the cloud data on cross section to obtain the virtual point cloud coordinate in the center of circle of cross section circle by principle of least square matching
,
, these 2 in theory should on the axis of component 1;
Step 6) repeats step 4) and step 5), matching can obtain component 2 axis
upper 2 virtual point cloud coordinates
,
;
Step 7) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 8) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 9) utilizes
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, utilize
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, the vector of 2 lines is
,
with
the space length of two axial lines is set to
, calculate
;
Step 10) when two axial lines intersects, then
, consider that component adds the allowable tolerance in man-hour, give
a limit is poor, judges
whether meet
, then think that when meeting two axial lines intersects, wherein
value is relevant with the precision of industrial components production tolerance and selected three-dimensional laser scanner,
;
Step 11), when two axial lines intersects, asks two axial lines intersection point
, two axial lines is got a bit for each
,
, obtain
distance be respectively
, the angle calculating two axial lines is
, compared with design load, according to error requirements, can judge that whether special-shaped component 1 is qualified with the physical dimension of special-shaped component 2.
The invention has the beneficial effects as follows:
The present invention utilizes three-dimensional laser scanner to obtain the geometric data of special-shaped component, and without the need to contact member itself, Point Cloud Processing utilizes computing machine to realize, and its detection efficiency is high, and precision height of the present invention is comparatively speaking, reaches as high as 0.02mm.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples.
Embodiment
Below in conjunction with embodiment, describe the present invention in detail.
Based on the detection method of the special-shaped component geometrical axis position relationship of space length, comprise the following steps:
Step 1) selects two high-precision three-dimensional laser scanners staggered relatively, is positioned over arbitrarily by special-shaped component to be detected between the two on lifting table;
Step 2) target is set, set up member designs Value Data storehouse;
Step 3) by lifting of lifting table, utilizes three-dimensional laser scanner to scan special-shaped component, obtains the cloud data under special-shaped component arbitrary system, the form of cloud data be (
)
;
Step 4), according to the target arranged, utilizes the sphere centre coordinate of target ball as reference mark, mates the cloud data of two scanners, by the coordinate unification of two scanners;
Step 5) extracts the cloud data at component 1 place, its coordinate be (
)
, extract the cloud data of two place's differing heights sections of component 1, utilize the cloud data on cross section to obtain the virtual point cloud coordinate in the center of circle of cross section circle by principle of least square matching
,
, these 2 in theory should on the axis of component 1;
Step 6) repeats step 4) and step 5), matching can obtain component 2 axis
upper 2 virtual point cloud coordinates
,
;
Step 7) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 8) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 9) utilizes
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, utilize
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, the vector of 2 lines is
,
with
the space length of two axial lines is set to
, calculate
;
Step 10) when two axial lines intersects, then
, consider that component adds the allowable tolerance in man-hour, give
a limit is poor, judges
whether meet
, then think that when meeting two axial lines intersects, wherein
value is relevant with the precision of industrial components production tolerance and selected three-dimensional laser scanner,
;
Step 11), when two axial lines intersects, asks two axial lines intersection point
, two axial lines is got a bit for each
,
, obtain
distance be respectively
, the angle calculating two axial lines is
, compared with design load, according to error requirements, can judge that whether special-shaped component 1 is qualified with the physical dimension of special-shaped component 2, continuing after the component portion markings detected to detect other parts, parameter can be drawn by above-mentioned steps.
The foregoing is only the preferred embodiment of invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1., based on the detection method of the special-shaped component geometrical axis position relationship of space length, it is characterized in that, comprise the following steps:
Step 1) selects two high-precision three-dimensional laser scanners staggered relatively, is positioned over arbitrarily by special-shaped component to be detected between the two on lifting table;
Step 2) target is set, set up member designs Value Data storehouse;
Step 3) by lifting of lifting table, utilizes three-dimensional laser scanner to scan special-shaped component, obtains the cloud data under special-shaped component arbitrary system, the form of cloud data be (
)
;
Step 4), according to the target arranged, utilizes the sphere centre coordinate of target ball as reference mark, mates the cloud data of two scanners, by the coordinate unification of two scanners;
Step 5) extracts the cloud data of special-shaped component one, its coordinate be (
)
.Extract the cloud data of two place's differing heights sections of component one, utilize the cloud data on cross section to obtain the virtual point cloud coordinate in the center of circle of cross section circle by principle of least square matching
,
, these 2 in theory should at the axis of special-shaped component one
on;
Step 6) repeats step 4) and step 5), matching can obtain the axis of special-shaped component two
upper 2 virtual point cloud coordinates
,
;
Step 7) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 8) utilizes
two point coordinate can calculate
equation be:
if,
,
,
, then
direction vector be
;
Step 9) utilizes
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, utilize
straight-line equation appoint and get
above the virtual point cloud coordinate of any is designated as
, the vector of 2 lines is
,
with
the space length of two axial lines is set to
, calculate
;
Step 10) when two axial lines intersects, then
, consider that component adds the allowable tolerance in man-hour, give
a limit is poor, judges
whether meet
, then think that when meeting two axial lines intersects, wherein
value is relevant with the precision of industrial components production tolerance and selected three-dimensional laser scanner,
;
Step 11), when two axial lines intersects, asks two axial lines intersection point
, two axial lines is got a bit for each
,
, obtain
distance be respectively
, the angle calculating two axial lines is
, compared with design load, according to error requirements, can judge that whether special-shaped component one is qualified with the physical dimension of special-shaped component two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128614.3A CN103234453B (en) | 2013-04-15 | 2013-04-15 | Based on the detection method of the special-shaped component geometrical axis position relationship of space length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310128614.3A CN103234453B (en) | 2013-04-15 | 2013-04-15 | Based on the detection method of the special-shaped component geometrical axis position relationship of space length |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103234453A CN103234453A (en) | 2013-08-07 |
| CN103234453B true CN103234453B (en) | 2015-11-18 |
Family
ID=48882505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310128614.3A Expired - Fee Related CN103234453B (en) | 2013-04-15 | 2013-04-15 | Based on the detection method of the special-shaped component geometrical axis position relationship of space length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103234453B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438835B (en) * | 2013-08-23 | 2016-06-08 | 中联重科股份有限公司 | Device and method for detecting bending angle of plate |
| CN110553606A (en) * | 2019-08-26 | 2019-12-10 | 广州供电局有限公司 | method, device and equipment for monitoring horizontal axis difference of supporting type tubular bus of transformer substation |
| CN111932528B (en) * | 2020-09-07 | 2021-02-19 | 广东明华机械有限公司 | Torpedo quality detection method and system based on visual identification |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387494A (en) * | 2008-10-06 | 2009-03-18 | 天津大学 | Device and method for measuring geometrical quantities of large tunnel segment components |
| CN101915558A (en) * | 2010-08-09 | 2010-12-15 | 重庆交通大学 | A detection method for geometric alignment of bridge components |
| CN102494657A (en) * | 2011-12-12 | 2012-06-13 | 北京建筑工程学院 | Measuring head radius compensation method for curve surface profile measuring and detecting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5988862A (en) * | 1996-04-24 | 1999-11-23 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three dimensional objects |
-
2013
- 2013-04-15 CN CN201310128614.3A patent/CN103234453B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387494A (en) * | 2008-10-06 | 2009-03-18 | 天津大学 | Device and method for measuring geometrical quantities of large tunnel segment components |
| CN101915558A (en) * | 2010-08-09 | 2010-12-15 | 重庆交通大学 | A detection method for geometric alignment of bridge components |
| CN102494657A (en) * | 2011-12-12 | 2012-06-13 | 北京建筑工程学院 | Measuring head radius compensation method for curve surface profile measuring and detecting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103234453A (en) | 2013-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109826108B (en) | An automatic monitoring method for bridge jacking based on stakeout robot | |
| CN102865862B (en) | Measurement method of non-horizontalization free established station | |
| CN103557802B (en) | A kind of method of non-cpntact measurement space curved surface micro hole diameter and coordinate position | |
| CN106524945B (en) | A kind of plane included angle On-line Measuring Method based on mechanical arm and structure light vision | |
| CN106112152B (en) | A kind of micropore Electrolyzed Processing machine vision positioning air navigation aid | |
| CN103234453B (en) | Based on the detection method of the special-shaped component geometrical axis position relationship of space length | |
| CN103245290A (en) | Physical dimension detection method for industrial irregularly-shaped components | |
| CN108994827A (en) | A kind of robot measurement-system of processing scanner coordinate system automatic calibration method | |
| CN103223628B (en) | A kind of method of on-line checkingi gear wheel profile error | |
| CN105046691B (en) | A kind of Camera Self-Calibration method based on orthogonal end point | |
| CN202028810U (en) | Milling system | |
| 李一航 et al. | Long-distance binocular ranging method based on perspective transformation | |
| Yang et al. | A coaxial vision assembly algorithm for un-centripetal holes on large-scale stereo workpiece using multiple-dof robot | |
| CN204902695U (en) | Angle steel angular surveying chi | |
| CN104699323A (en) | Method for optically positioning touch point based on image processing | |
| CN104316007B (en) | The accurate physical dimension measuring system of large scale based on witness mark battle array | |
| CN103223627B (en) | A kind of method of on-line checkingi gear wheel gearing line error | |
| CN105180803B (en) | Nuclear-power reactor coolant circuit Surge line piping measuring method | |
| CN112013784B (en) | Detection method and detection system | |
| CN205843636U (en) | A kind of three-coordinates measuring machine | |
| Chen et al. | A method for detecting alignment deviation on a thread-measuring instrument | |
| CN104765702B (en) | A kind of type face data acquisition method in ship plank extreme misery process | |
| CN102693539A (en) | Rapid three-dimensional calibration method for wide baselines for intelligent monitoring systems | |
| CN203163689U (en) | Irregular component geometric data detecting device based on two laser scanners | |
| Wang et al. | An improved adaptive correction method for camera distortion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |