CN106289085B - Device and method for testing axis intersection degree - Google Patents
Device and method for testing axis intersection degree Download PDFInfo
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- CN106289085B CN106289085B CN201610625356.3A CN201610625356A CN106289085B CN 106289085 B CN106289085 B CN 106289085B CN 201610625356 A CN201610625356 A CN 201610625356A CN 106289085 B CN106289085 B CN 106289085B
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- turntable
- axis
- theodolite
- mirror
- autocollimation theodolite
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 241001416181 Axis axis Species 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010998 test method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012956 testing procedure 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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
- G01C1/02—Theodolites
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a method for testing the intersection of axes, which comprises the steps of firstly adjusting a photoelectric autocollimator to align a plane double-sided reflector; adjusting the autocollimation theodolite to aim at the cross-hair image center of the plane double-sided reflector, and recording the reading of the autocollimation theodolite; rotating a horizontal shaft of the turntable at intervals of 45 degrees, rotating the horizontal shaft by 360 degrees in total, and recording the reading of the auto-collimation theodolite; the method comprises the steps of rotating a rotary table, enabling a photoelectric autocollimator to monitor that the vertical axis of the rotary table rotates 180 degrees, adjusting the autocollimator to aim at the cross-hair image center of a plane double-sided reflector, recording the reading of the autocollimator, then rotating the horizontal axis of the rotary table at intervals of 45 degrees, rotating 360 degrees in total, recording the reading of the autocollimator, and calculating the axis intersection degree according to the recorded data.
Description
Technical field
The present invention relates to axis intersection testing fields.
Background technique
Dimensional turntable is suffered from fields such as space flight, aviation, target ranges and is widely applied, and axis intersection is dimensional turntable one
The important precision index of item, refers specifically to the minimum value of distance between space pivot axis axis.
Existing common testing methods be contact method of testing, this method by the way that standard core rods are mounted in tested shaft,
It adjusts standard core rods and tested shaft is coaxial.Amesdial is fixed in another shaft, and amesdial gauge outfit withstands on standard core rods bus
On, record amesdial indicating value；Two shafts rotate 180 °, record amesdial indicating value again.The one of amesdial reading difference twice
Half is exactly axis intersection.This method is contact test method, by amesdial precision, standard core rods deviation from circular from and installation
The limitation of error, so that measuring accuracy is low, and shaft to be measured is limited by standard core rods size.
Summary of the invention
The object of the present invention is to provide a kind of axis intersection test device and methods, solve contact test method essence
Spend low problem.
The technical solution of the invention is as follows:
A kind of axis intersection test device, its special feature is that: including autocollimation theodolite, photoelectric auto-collimator and
Reflecting mirror；
Above-mentioned photoelectric auto-collimator and autocollimation theodolite are set to the both ends of turntable trunnion axis；
The reflecting mirror is arranged on turntable trunnion axis；The reflecting mirror is particularly located at turntable vertical axis and is put down by once orthogonal
Move the intersection with turntable trunnion axis；Above-mentioned reflecting mirror is plane double mirror.
In order to which autocollimation theodolite aims at reflecting mirror, above-mentioned mirror center band crosshair.
The present invention also provides a kind of methods of test axis Intersection, comprising the following steps:
Step 1: adjustment plane double mirror, so that the mirror surface of plane double mirror and turntable Horizontal-shaft vertical；It adjusts
Leveling face double mirror crosshair position, so that autocollimation theodolite reading is constant in turntable trunnion axis rotary course, i.e., ten
Word silk inconocenter and the horizontal overlapping of axles of turntable；
Step 2: adjustment photoelectric auto-collimator, it is double that alignment surface double mirror adjusts autocollimation theodolite target plane
Face reflecting mirror crosshair inconocenter, record autocollimation theodolite read (A1, E1)；
Step 3: it by turntable trunnion axis by 45 ° of interval rotations, is rotated by 360 ° in total, plane double mirror follows turntable
Trunnion axis rotation, turntable trunnion axis of every rotation adjust an autocollimation theodolite, so that autocollimation theodolite target plane
Double mirror crosshair inconocenter, record autocollimation theodolite reading are respectively as follows: (A2, E2) ... (A8, E8)；
Step 4: photoelectric auto-collimator monitors 180 ° of turntable vertical axis rotation, turntable trunnion axis and plane double mirror
It follows turntable vertical axis to rotate 180 °, adjusts autocollimation theodolite target plane double mirror crosshair inconocenter, record is certainly
Collimate theodolite reading (A1', E1'), then turntable trunnion axis is rotated by 360 ° in total by 45 ° of interval rotations, every rotation is primary to be turned
Platform trunnion axis adjusts an autocollimation theodolite, so that autocollimation theodolite target plane double mirror crosshair inconocenter,
Record autocollimation theodolite reading is respectively as follows: (A2', E2') ... (A8', E8′)；
Step 5: it is calculated by the following formula axis intersection；
θmax=max (θ1、θ2、θ3、θ4) (5)
ξ=Ltan (θmax/2) (6)
In formula, L-autocollimation theodolite shaft is at a distance from plane double mirror crosshair；
ξ-turntable trunnion axis and turntable trunnion axis axis intersection；
θ1- in A1And A5Relative position under be tested angle of the axis intersection relative to theodolite；
θ2- in A2And A6Relative position under be tested angle of the axis intersection relative to theodolite；
θ3- in A3And A7Relative position under be tested angle of the axis intersection relative to theodolite；
θ4- in A4And A8Relative position under be tested angle of the axis intersection relative to theodolite.
The beneficial effects of the present invention are:
Test method of the present invention uses contactless two axis Intersection test method, and measuring accuracy is high, and measurement method is not
It is limited by standard core rods size.
Detailed description of the invention
Fig. 1 is axis intersection test method schematic diagram of the present invention；
Fig. 2 is mirror mirror crosshair of the present invention face schematic diagram.
Appended drawing reference in figure are as follows: 1- photoelectric auto-collimator；2- plane double mirror；3- autocollimation theodolite；4- turntable
Trunnion axis；5- turntable vertical axis.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be further described.
As shown in Figure 1, axis intersection test device of the present invention includes the photoelectric auto for being erected at turntable trunnion axis both ends
Straight instrument 1 and autocollimation theodolite 3, are arranged in the plane double mirror with crosshair picture on turntable trunnion axis, such as Fig. 2 institute
Show.
There are two types of working condition, one kind another axiss of rotation for single-revolution axis vertical for adjacent two rotating shaft of dimensional turntable
Level, another kind are that two axiss of rotation are horizontal, the present invention another axis of rotation horizontal operation shape with single-revolution axis vertical
For state.
Specific testing procedure is as follows:
1) turntable vertical axis is translated, keeps it orthogonal with turntable trunnion axis；In the point of intersection of turntable trunnion axis, plane is set
Double mirror, and photoelectric auto-collimator and autocollimation theodolite are set up respectively at turntable trunnion axis both ends.
2) plane double mirror is adjusted, so that plane double mirror mirror surface and turntable Horizontal-shaft vertical；Then it adjusts
Plane double mirror crosshair position, so that crosshair picture, in turntable trunnion axis rotary course, auto-collimation passes through twice for front and back
The reading of latitude instrument is approximately equal, when difference of reading is in the difference range of setting twice, is considered as the equal i.e. auto-collimation longitude and latitude of reading
The reading of instrument is constant when turntable trunnion axis rotates.
3) photoelectric auto-collimator alignment surface double mirror, autocollimation theodolite target plane double mirror crosshair
Inconocenter, record autocollimation theodolite read (A1, E1), then turntable trunnion axis rotated by 45 ° of intervals (trunnion axis rotation, herein
Photoelectric auto-collimator and autocollimation theodolite are fixed in the process), every 45 ° of rotation adjusts autocollimation theodolite alignment surface
The crosshair picture of double mirror, record autocollimation theodolite reading；Turntable trunnion axis is rotated by 360 ° in total；It is rotated by 8 times
The reading of autocollimation theodolite is recorded as (A respectively afterwards2, E2) ... (A8, E8)。
4) photoelectric auto-collimator monitoring turntable vertical axis rotates 180 °, and in the process, turntable trunnion axis and plane are two-sided
Reflecting mirror follows turntable vertical axis to rotate 180 °；Autocollimation theodolite target plane double mirror crosshair inconocenter is adjusted,
It records autocollimation theodolite and reads (A1', E1'), then by turntable trunnion axis by 45 ° of intervals revolution (this photoelectric auto-collimator in the process
It is motionless with autocollimation theodolite), every 45 ° of revolution, adjustment autocollimation theodolite is directed at crosshair picture again, records auto-collimation longitude and latitude
Instrument reading, turntable trunnion axis turn round 360 ° in total；The reading of autocollimation theodolite is recorded as (A respectively after 8 revolutions2',
E2') ... (A8', E8′)。
5) data processing
θmax=max (θ1、θ2、θ3、θ4) (5)
ξ=Ltan (θmax/2) (6)
In formula, L-autocollimation theodolite shaft is at a distance from plane double mirror crosshair；
ξ-turntable trunnion axis and turntable trunnion axis axis intersection.
Claims (1)
1. a kind of method using axis intersection test device test axis Intersection,
The axis intersection test device includes autocollimation theodolite, photoelectric auto-collimator and reflecting mirror；
The photoelectric auto-collimator and autocollimation theodolite are erected at the both ends of turntable trunnion axis；
The reflecting mirror is arranged on turntable trunnion axis；
The reflecting mirror, which is located at, passes through the intersection of an orthogonal translation and turntable trunnion axis in turntable vertical axis；The reflecting mirror
For plane double mirror；The mirror center band crosshair picture；
It is characterized by:
The following steps are included:
Step 1: adjustment plane double mirror, so that the mirror surface of plane double mirror and turntable Horizontal-shaft vertical；Adjustment is flat
Face double mirror crosshair image position, so that crosshair picture, in turntable trunnion axis rotary course, auto-collimation passes through twice for front and back
When the difference of reading of latitude instrument is in the difference range of setting, it is considered as the reading for reading equal i.e. autocollimation theodolite in turntable trunnion axis
It is constant when rotation；
Step 2: adjustment photoelectric auto-collimator, alignment surface double mirror；It is two-sided anti-to adjust autocollimation theodolite target plane
Mirror crosshair inconocenter is penetrated, record autocollimation theodolite reads (A1, E1)；
Step 3: it by turntable trunnion axis by 45 ° of interval rotations, is rotated by 360 ° in total, plane double mirror follows turntable horizontal
Axis rotation, turntable trunnion axis of every rotation adjust an autocollimation theodolite, so that autocollimation theodolite target plane is two-sided
Reflecting mirror crosshair inconocenter, record autocollimation theodolite reading are respectively as follows: (A2, E2) ... (A8, E8)；
Step 4: revolving-turret, photoelectric auto-collimator monitor that turntable vertical axis rotates 180 °, and turntable trunnion axis and plane are two-sided anti-
Penetrating mirror follows turntable vertical axis to rotate 180 °, adjusts autocollimation theodolite target plane double mirror crosshair inconocenter, note
It records autocollimation theodolite and reads (A1', E1'), then turntable trunnion axis is rotated by 360 ° in total by 45 ° of interval rotations, every rotation one
Secondary turntable trunnion axis adjusts an autocollimation theodolite, so that autocollimation theodolite target plane double mirror crosshair picture
Center, record autocollimation theodolite reading are respectively as follows: (A2', E2') ... (A8', E8′)；
Step 5: it is calculated by the following formula axis intersection；
θmax=max (θ1、θ2、θ3、θ4) (5)
ξ=Ltan (θmax/2) (6)
In formula, L-autocollimation theodolite shaft is at a distance from plane double mirror crosshair；
ξ-turntable trunnion axis and turntable vertical axis axis intersection；
θ1- in A1And A5Relative position under be tested angle of the axis intersection relative to theodolite；
θ2- in A2And A6Relative position under be tested angle of the axis intersection relative to theodolite；
θ3- in A3And A7Relative position under be tested angle of the axis intersection relative to theodolite；
θ4- in A4And A8Relative position under be tested angle of the axis intersection relative to theodolite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610625356.3A CN106289085B (en) | 2016-08-02 | 2016-08-02 | Device and method for testing axis intersection degree |
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| CN201610625356.3A CN106289085B (en) | 2016-08-02 | 2016-08-02 | Device and method for testing axis intersection degree |
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| CN106289085B true CN106289085B (en) | 2019-04-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106840044A (en) * | 2017-01-06 | 2017-06-13 | 中国科学院光电研究院 | A kind of double mirror parallelism measuring apparatus and its measuring method |
| CN107806856B (en) * | 2017-09-28 | 2020-01-31 | 中国科学院长春光学精密机械与物理研究所 | experimental detection device and method for simulating target space attitude |
| CN113740987B (en) * | 2021-08-17 | 2024-04-19 | 河北汉光重工有限责任公司 | Optical axis debugging method for triaxial stabilized platform with rolling ring |
| CN116878365A (en) * | 2023-09-06 | 2023-10-13 | 通用技术集团机床工程研究院有限公司 | AB axis turntable detection method |
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