CN106017392A - Method for detecting circular cross section contour and coaxiality of electric iron tower steel pipe from multiple points simultaneously - Google Patents
Method for detecting circular cross section contour and coaxiality of electric iron tower steel pipe from multiple points simultaneously Download PDFInfo
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- CN106017392A CN106017392A CN201610575683.2A CN201610575683A CN106017392A CN 106017392 A CN106017392 A CN 106017392A CN 201610575683 A CN201610575683 A CN 201610575683A CN 106017392 A CN106017392 A CN 106017392A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 127
- 239000010959 steel Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 5
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000002372 labelling Methods 0.000 claims description 13
- 230000001815 facial effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a method for detecting the circular cross section contour and coaxiality of an electric iron tower steel pipe from multiple points simultaneously. The method includes the steps of installing a steel pipe circular cross section contour detection apparatus, placing a steel pipe, fixing the steel pipe, positioning with a distance sensor, and detecting the circular cross section contour and coaxiality of the steel pipe. A circular cross section contour curve can be drawn by sequentially connecting point 1, point 2, point 3 till the point n that are recorded by PLC, sequentially connecting point 1', point 2', point 3' till point n', sequentially connecting point 1'', point 2'', point 3'' till point n'', and conducting fillet processing to fit and obtain the circular cross sections of three cross sections of the steel pipe to be tested. Coaxiality can be calculated by comparing the greatest difference between point 1, point 1' and point 1'' or point n, point n' and point n'' with a set coaxiality to obtain the coaxiality calculation result. Circular cross section contour of any cross section of a steel pipe can be detected, and the coaxiality of the steel pipe can also be detected.
Description
Technical field
The present invention relates to a kind of detection method using electricity force checking device, particularly a kind of multiple spot detects electric power ferrum simultaneously
Tower steel pipe circular section profile and the method for axiality.
Background technology
Power transmission process needs a large amount of electric power tower used, electric power tower subangle head tower and steel tube tower.Angle steel tower main
Mountain area to be used in, the occasion of transportation inconvenience.The steel tube tower that structure is simple and direct is used in a large number in plains region.Steel tube tower main
Structure is steel pipe, and tower body uses Luo bolt a section for steel pipe connection to be erected.Steel pipe passes through flat board sawing sheet, bent plate, pipe
Body gap is welded, and school port, end are welded with ring flange and the method such as steel tube surface galvanizing by dipping processes.Steel pipe is by curved
Volume processing, becomes pipe by rectangular flat plate buckling.Specific process is the short side direction offer feeding at flat board, along long limit
Direction is bent to a certain degree, and then short side direction continues feeding one segment distance, and the position that long side direction is new is bent again, this
Process is repeated.Respectively two long side directions of rectangular flat plate being made identical processing, two long back gauges of flat board are close,
It is formed with the pipe of opening.Again by opening pressing, by electric welding, two long limits of original flat board are welded into one.Adding of above-mentioned routine
Work method ensures to be formed the shape of steel pipe by the minor face amount of feeding and long limit amount of bow controlling flat board, although pass through numerical control programming
Method controls mechanical movement, but true form still exists error.For joining of the ring flange that ensures steel pipe two ends and couple
Close, after the welding of the gap of steel pipe, also the circularity at steel pipe two ends is checked and shaping, finally could with ring flange assembling and
Welding.The uniformity coefficient of steel pipe holding capacity, along the circularity of length cross-sectional geometry, is had an impact, in particular with electric power by steel pipe
The voltage of transmission is more and more higher, and the height of power tower is also increasing, and the requirement to steel pipe stress-bearing capability is also improving.
Now the intermediate cross-section profile of steel pipe can only be measured diameter by processing method, and pair cross-section profile cannot be measured, i.e. without
Method knows the error size of actual circular section profile and design circular section profile.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, and provides a kind of multiple spot to detect simultaneously
Electric power tower steel pipe circular section profile and the method for axiality, this multiple spot detect simultaneously electric power tower steel pipe circular section profile and with
The method of axle degree directly can carry out the detection of circular section profile to steel pipe arbitrary section, can also carry out the axiality of steel pipe simultaneously
Detection, easy to detect fast, detected value accurately, reliable.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of multiple spot detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, comprises the following steps.
The first step, steel pipe circular section contour detecting device is installed: be provided with the arc base of energy placing steel tubes on reference platform
Quasi-groove；Left sliding post and right sliding post be separately positioned on arc baseline trough both sides and all can left and right sliding, at the bottom of left sliding post
It is provided with locating shaft on the right side of portion, rotates in locating shaft can stretch into the steel pipe being positioned on arc baseline trough and with steel tube inner hole and join
Close；Being provided with rotating shaft on the left of right sliding post, the rotating shaft of neighbouring steel pipe one end is provided with fixing head, this fixing head can stretch into placement
In steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of rotating shaft is connected with indexer, and rotating shaft can be
The cycle off and on that carries out under the drive of indexer rotates；Fixing head includes central shaft, electric magnet, spring, arc sheetmetal and bullet
Property wearing layer；Central shaft is coaxially fixedly installed with rotating shaft, and electric magnet is built in central shaft, and the circumference of central shaft is evenly arranged with
Some pieces of arc sheetmetals, the right-hand member of every piece of arc sheetmetal is all hinged with central shaft, and the left end of every piece of arc sheetmetal is equal
It is connected by spring and central shaft are fixing；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged on arc
The surface of baseline trough, the two ends of horizontal sliding bar are connected by expansion link is fixing with left sliding post or right sliding post respectively；Level
The bottom of slide bar is disposed with three horizontal concrete chutes from left to right, and three horizontal concrete chutes are parallel to each other or are positioned at same straight line,
Slidably connecting a described range sensor in each horizontal concrete chute, the sliding in horizontal concrete chute of each range sensor is equal
Driven by linear electric motors；A photographic head, each range sensor, Mei Gezhi it is provided with on each range sensor
Line motor, each photographic head are all connected with PLC with indexer.
Second step, placing steel tubes: mark three positions needing to carry out circular section contour detecting on steel pipe, will carry out
The steel pipe of labelling is placed in arc baseline trough in the first step, and makes labelling position upward.
3rd step, fixing steel pipe: left sliding post sliding to the right, in making the steel pipe that locating shaft stretches in second step and and steel pipe
Endoporus is rotatably assorted；Right sliding post sliding to the left, in making the steel pipe that fixing head stretches in second step and with steel tube inner hole tight fit.
4th step, range sensor positions: the photographic head being arranged on range sensor can be to marking in the 3rd step
Profile position to be detected in circular section identifies automatically, thus drives distance telegraphy device horizontal concrete chute sliding along horizontal sliding bar
Surface to circular section profile position to be detected.
5th step, steel pipe circular section profile and axiality detection: three range sensors gather Distance-sensing the most automatically
Distance value, to the distance value of steel pipe upper surface, is passed to PLC simultaneously, and is labeled as a little 1, some 1' and some 1'' by device bottom；So
After, rotating shaft rotates one week under the drive of indexer, and then drives steel pipe to rotate one week；Steel pipe often rotates a scale division value, and three
Individual range sensor is by the distance value of range sensor bottom of collection the most automatically to steel pipe upper surface, simultaneously by distance value
Passing to PLC, and labelling is once, labelling point is followed successively by a little 2, some 2' and some 2''；Point 3, some 3' and some 3'' are until putting n, some n'
With a n'', wherein n is equal with the scale division value of indexer.
Then, PLC carries out circular section contour curve drafting and axiality calculates, particularly as follows:
A. circular section contour curve draw: PLC by the point 1 of record, point 2, point 3 until some n be sequentially connected with；Will a 1', some 2', point
3' is until some n' is sequentially connected with；By a 1'', some 2'', some 3'' until some n'' is sequentially connected with；And carry out fillet process, just matching
Obtain the circular section contour curve in three cross sections to be measured of steel pipe；
B. axiality calculates: by the difference maximum between point 1, some 1' and some 1'' or some n, some n' and some n'' three and setting
Coaxial angle value compares, and draws axiality result of calculation.
Electromagnetic attraction in described electric magnet can regulate.
The scale division value of described indexer is that 8 indexing or 16 index or 32 indexing.
One end that described locating shaft matches with steel tube inner hole is wedge shaped or conical.
In described second step, three that steel pipe marks need to carry out the marker color at the position of circular section contour detecting
Different.
After the present invention uses said method, directly steel pipe arbitrary section can be carried out the detection of circular section profile, also simultaneously
The axiality of steel pipe can be detected, easy to detect fast, detected value accurately, reliable.
Accompanying drawing explanation
Fig. 1 is that the structure of the detection device that the present invention a kind of energy multiple spot detects electric power tower steel pipe circular section profile simultaneously is shown
It is intended to.
Fig. 2 shows the structure for amplifying schematic diagram of fixing head in Fig. 1.
Fig. 3 shows the schematic cross-section of fixing head in Fig. 2.
Detailed description of the invention
The present invention is further detailed explanation with concrete better embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2 and Figure 3, a kind of energy multiple spot detects the detection dress of electric power tower steel pipe circular section profile simultaneously
Put, wherein have reference platform 1, arc baseline trough 11, left sliding post 2, locating shaft 21, right sliding post 3, rotating shaft 31, fixing head 32,
Indexer 33, central shaft 321, electric magnet 322, spring 323, arc sheetmetal 324, elastic wear-resisting layer 325, guide section 326, open
Mouth end 327, steel pipe 4, horizontal sliding bar 5, expansion link 51, horizontal concrete chute 52, linear electric motors 53, range sensor 6 and photographic head 61
Deng technical characteristics.
A kind of energy multiple spot detects the detection device of electric power tower steel pipe circular section profile simultaneously, including reference platform, left cunning
Move post, right sliding post, locating shaft, rotating shaft, fixing head, indexer, horizontal sliding bar, three range sensors, three photographic head and
PLC；
The arc baseline trough of energy placing steel tubes it is provided with on reference platform.
Left sliding post and right sliding post be separately positioned on arc baseline trough both sides and all can left and right sliding, left sliding post
Bottom right is provided with locating shaft, rotates and join in locating shaft can stretch into the steel pipe being positioned on arc baseline trough and with steel tube inner hole
Close；Being provided with rotating shaft on the left of right sliding post, the rotating shaft of neighbouring steel pipe one end is provided with fixing head, this fixing head can stretch into placement
In steel pipe on arc baseline trough and with steel tube inner hole tight fit；The other end of rotating shaft is connected with indexer, and rotating shaft can be
The cycle off and on that carries out under the drive of indexer rotates.
Further, the scale division value of above-mentioned indexer is preferably 8 indexing or 16 indexing or 32 indexing, and the scale division value of indexer is more
Height, circumference circular section outline data gathers the most, and the circular section simulated is the most accurate.
Fixing head includes central shaft, electric magnet, spring, arc sheetmetal and elastic wear-resisting layer；Central shaft is coaxial with rotating shaft
Being fixedly installed, electric magnet is built in central shaft, and the circumference of central shaft is evenly arranged with some pieces of arc sheetmetals, every piece of arc
The right-hand member of metallic plate is all hinged with central shaft, and the left end of every piece of arc sheetmetal is all connected by spring and central shaft are fixing；
Elastic wear-resisting layer is coated on the periphery of arc sheetmetal.
Further, the electromagnetic attraction in above-mentioned electric magnet can regulate such that it is able to controls the decrement size of spring, enters
And control the degree of closing up of arc sheetmetal, namely adapt to different steel tube inner hole diameter.
Further, above-mentioned central shaft also includes the guide section being arranged on the left of arc sheetmetal, stretches into steel pipe in fixing head
During endoporus, guide section first stretches into steel tube inner hole, can enter steel tube inner hole for arc sheetmetal and guide.
Horizontal sliding bar is arranged on the surface of arc baseline trough, and the two ends of horizontal sliding bar are respectively by expansion link and left sliding
Post or the fixing connection of right sliding post；The bottom of horizontal sliding bar is disposed with three horizontal concrete chutes from left to right, and three levels are sliding
Groove is parallel to each other or is positioned at same straight line, slidably connects a described range sensor, each distance in each horizontal concrete chute
Sensor sliding in horizontal concrete chute is driven by linear electric motors；It is provided with one on each range sensor to take the photograph
As head, each range sensor, each linear electric motors, each photographic head are all connected with PLC with indexer.
Three horizontal concrete chutes are preferably parallel to each other, and the length sum of three horizontal concrete chutes is more than the length of steel pipe.That is, phase
All overlap between adjacent two horizontal concrete chutes.
A kind of multiple spot detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, it is characterised in that: include following
Step.
The first step, steel pipe circular section contour detecting device is installed.
Second step, placing steel tubes: mark three positions needing to carry out circular section contour detecting on steel pipe, will carry out
The steel pipe of labelling is placed in arc baseline trough in the first step, and makes labelling position upward.
3rd step, fixing steel pipe: left sliding post sliding to the right, in making the steel pipe that locating shaft stretches in second step and and steel pipe
Endoporus is rotatably assorted；Right sliding post sliding to the left, in making the steel pipe that fixing head stretches in second step and with steel tube inner hole tight fit.
4th step, range sensor positions: the photographic head being arranged on range sensor can be to marking in the 3rd step
Profile position to be detected in circular section identifies automatically, thus drives distance telegraphy device horizontal concrete chute sliding along horizontal sliding bar
Surface to circular section profile position to be detected.
5th step, steel pipe circular section profile and axiality detection: three range sensors gather Distance-sensing the most automatically
Distance value, to the distance value of steel pipe upper surface, is passed to PLC simultaneously, and is labeled as a little 1, some 1' and some 1'' by device bottom；So
After, rotating shaft rotates one week under the drive of indexer, and then drives steel pipe to rotate one week；Steel pipe often rotates a scale division value, and three
Individual range sensor is by the distance value of range sensor bottom of collection the most automatically to steel pipe upper surface, simultaneously by distance value
Passing to PLC, and labelling is once, labelling point is followed successively by a little 2, some 2' and some 2''；Point 3, some 3' and some 3'' are until putting n, some n'
With a n'', wherein n is equal with the scale division value of indexer.
Then, PLC carries out circular section contour curve drafting and axiality calculates, particularly as follows:
A. circular section contour curve draw: PLC by the point 1 of record, point 2, point 3 until some n be sequentially connected with；Will a 1', some 2', point
3' is until some n' is sequentially connected with；By a 1'', some 2'', some 3'' until some n'' is sequentially connected with；And carry out fillet process, just matching
Obtain the circular section contour curve in three cross sections to be measured of steel pipe；
B. axiality calculates: by the difference maximum between point 1, some 1' and some 1'' or some n, some n' and some n'' three and setting
Coaxial angle value compares, and draws axiality result of calculation.
In described second step, three that steel pipe marks need to carry out the marker color at the position of circular section contour detecting
Different.
In described 3rd step, steel pipe fixing means, all comprise the steps:
Step A, locating shaft positions: left sliding post sliding to the right, in making the steel pipe that locating shaft stretches in second step and with in steel pipe
Hole is rotatably assorted.
Step B, fixing head closes up: electric magnet is energized, and arc sheetmetal overcomes spring force, and the direction towards central shaft is closed
Hold together, make the opening area of arc sheetmetal less than steel tube inner hole sectional area.
Step C, fixing head stretches into steel tube inner hole: right sliding post sliding to the left, makes the fixing head after closing up stretch in steel pipe
Hole.
Step D, fixing head expansion: after fixing head stretches into endoporus, electric magnet power-off, spring recovers, and fixing head is launched, arc
Shape metallic plate encloses one circular platform type structure of formation, and the opening area of arc sheetmetal is more than steel tube inner hole sectional area, thus
Making fixing head and steel tube inner hole tight fit, steel pipe can rotate with rotating shaft.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple equivalents, this
A little equivalents belong to protection scope of the present invention.
Claims (5)
1. a multiple spot detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, it is characterised in that: include with
Lower step:
The first step, steel pipe circular section contour detecting device is installed: be provided with the arc baseline trough of energy placing steel tubes on reference platform；
Left sliding post and right sliding post be separately positioned on arc baseline trough both sides and all can left and right sliding, on the right side of left sliding column bottom
It is provided with locating shaft, in locating shaft can stretch into the steel pipe being positioned on arc baseline trough and is rotatably assorted with steel tube inner hole；Right cunning
Moving and be provided with rotating shaft on the left of post, the rotating shaft of neighbouring steel pipe one end is provided with fixing head, this fixing head can stretch into and be positioned over arc
In steel pipe on baseline trough and with steel tube inner hole tight fit；The other end of rotating shaft is connected with indexer, and rotating shaft can be at indexer
Drive under carry out off and on the cycle rotate；Fixing head includes central shaft, electric magnet, spring, arc sheetmetal and elastic wear-resisting
Layer；Central shaft is coaxially fixedly installed with rotating shaft, and electric magnet is built in central shaft, and the circumference of central shaft is evenly arranged with some pieces
Arc sheetmetal, the right-hand member of every piece of arc sheetmetal is all hinged with central shaft, and the left end of every piece of arc sheetmetal all passes through bullet
Spring is fixing with central shaft to be connected；Elastic wear-resisting layer is coated on the periphery of arc sheetmetal；Horizontal sliding bar is arranged on arc baseline trough
Surface, the two ends of horizontal sliding bar are fixed by expansion link and left sliding post or right sliding post respectively and are connected；Horizontal sliding bar
Bottom is disposed with three horizontal concrete chutes from left to right, and three horizontal concrete chutes are parallel to each other or are positioned at same straight line, Mei Geshui
Slidably connecting a described range sensor in smooth groove, the sliding in horizontal concrete chute of each range sensor is by one
Linear electric motors are driven；A photographic head, each range sensor, each straight-line electric it is provided with on each range sensor
Machine, each photographic head are all connected with PLC with indexer；
Second step, placing steel tubes: mark three positions needing to carry out circular section contour detecting on steel pipe, labelling will be carried out
Steel pipe place in arc baseline trough in the first step, and make labelling position upward；
3rd step, fixing steel pipe: left sliding post sliding to the right, in making the steel pipe that locating shaft stretches in second step and and steel tube inner hole
It is rotatably assorted；Right sliding post sliding to the left, in making the steel pipe that fixing head stretches in second step and with steel tube inner hole tight fit；
4th step, range sensor positions: the circle marked in the 3rd step can be cut by the photographic head being arranged on range sensor
Facial contour position to be detected identifies automatically, thus drives distance telegraphy device horizontal concrete chute along horizontal sliding bar to slide onto circle
The surface at cross section profile position to be detected；
5th step, steel pipe circular section profile and axiality detection: three range sensors gather at the bottom of range sensor the most automatically
Hold the distance value to steel pipe upper surface, distance value is passed to PLC simultaneously, and is labeled as a little 1, some 1' and some 1''；Then, turn
Axle rotates one week under the drive of indexer, and then drives steel pipe to rotate one week；Steel pipe often rotates a scale division value, three distances
Distance value to the distance value of steel pipe upper surface, is passed to by sensor by range sensor bottom of collection the most automatically simultaneously
PLC, and labelling is once, labelling point is followed successively by a little 2, some 2' and some 2''；Point 3, some 3' and some 3'' are until putting n, some n' and point
N'', wherein n is equal with the scale division value of indexer；Then, PLC carries out circular section contour curve drafting and axiality calculates, specifically
For:
Circular section contour curve is drawn: PLC by the point 1 of record, point 2, point 3 until some n is sequentially connected with；Will a 1', some 2', some 3'
Until some n' is sequentially connected with；By a 1'', some 2'', some 3'' until some n'' is sequentially connected with；And carry out fillet process, just matching obtains
Circular section contour curve to three cross sections to be measured of steel pipe；
Axiality calculates: by point 1, puts 1' and some 1'' or puts the difference maximum between n, some n' and some n'' three and set same
Axle angle value compares, and draws axiality result of calculation.
Multiple spot the most according to claim 1 detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, its
It is characterised by: the electromagnetic attraction in described electric magnet can regulate.
Multiple spot the most according to claim 1 detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, its
It is characterised by: the scale division value of described indexer is that 8 indexing or 16 index or 32 indexing.
Multiple spot the most according to claim 1 detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, its
It is characterised by: one end that described locating shaft matches with steel tube inner hole is wedge shaped or conical.
Multiple spot the most according to claim 1 detects electric power tower steel pipe circular section profile and the method for axiality simultaneously, its
Being characterised by: in described second step, three that steel pipe marks need to carry out the labelling face at the position of circular section contour detecting
Color is different.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610575683.2A CN106017392B (en) | 2016-07-21 | 2016-07-21 | The method that multiple spot detects electric power tower steel pipe circular section profile and concentricity simultaneously |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610575683.2A CN106017392B (en) | 2016-07-21 | 2016-07-21 | The method that multiple spot detects electric power tower steel pipe circular section profile and concentricity simultaneously |
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| CN106017392A true CN106017392A (en) | 2016-10-12 |
| CN106017392B CN106017392B (en) | 2018-09-11 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108168499A (en) * | 2017-12-28 | 2018-06-15 | 长春长光精密仪器集团有限公司 | A kind of measuring for the coaxiality error method and measuring system |
| CN108871213A (en) * | 2018-05-15 | 2018-11-23 | 安徽知库云端科技服务有限公司 | A kind of electronic circuit board test detection device |
| CN109732529A (en) * | 2019-03-25 | 2019-05-10 | 广州广日电梯工业有限公司 | Elevator steel band is oriented to train and assembles device and method |
| CN110017746A (en) * | 2019-03-29 | 2019-07-16 | 中铁工程装备集团隧道设备制造有限公司 | A kind of development machine hobboing cutter cutter ring detecting tool |
| CN110779471A (en) * | 2019-12-04 | 2020-02-11 | 北京泓慧国际能源技术发展有限公司 | Coaxiality measuring method, device, equipment and storage medium |
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