CN106768861B - A kind of positioning device and localization method at irregularly shaped object center - Google Patents
A kind of positioning device and localization method at irregularly shaped object center Download PDFInfo
- Publication number
- CN106768861B CN106768861B CN201611133635.4A CN201611133635A CN106768861B CN 106768861 B CN106768861 B CN 106768861B CN 201611133635 A CN201611133635 A CN 201611133635A CN 106768861 B CN106768861 B CN 106768861B
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- support platform
- air
- centre bore
- stomata
- under test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
The present invention relates to the positioning devices and localization method at a kind of irregularly shaped object center, the positioning device includes: air-float turntable, support platform, centre bore, multiple stomatas and air inlet, multiple stomatal limiting value ring-band shapes are distributed on the upper surface of the support platform, the centre bore is arranged on the central point of the upper surface of the support platform, the lower surface of the support platform is fixedly connected with the air-float turntable, and the multiple stomata and centre bore are connected to by the air-float turntable with the air inlet.
Description
Technical field
The present invention relates to optical element detection technique field more particularly to a kind of positioning device at irregularly shaped object center and
Localization method.
Background technique
Influence energy in high-precision optical detection process, with the raising of detection accuracy, for mechanical structure micro-vibration
Enough change position and the deformation of element under test.During general measure mechanical structure, high-precision angle block gauge is needed to complete pair
The machining angle of precision machine tool is adjusted.And for the angle calibration process of High-precision angle block, generally require autocollimator
Deng the center that tested angle block is placed on to turntable, the accurate angle calibration to angle block gauge is realized by rotating table.
And the premise of the accurate angle calibration of angle block gauge is the center for needing the position of angle block gauge to be measured necessarily to be in turntable
The heart, and the shape of general angle block gauge is mostly triangle or quadrangle etc., is felt relieved for this non-circular object to it
Relatively difficult, general is mostly that naked eyes carry out centralized positioning, so that the precision of positioning is not high, leads to the angle mistake in measurement angle block
Cheng Zhong, precision are difficult to be promoted.
Summary of the invention
Present invention seek to address that being difficult to the technical issues of positioning to irregularly shaped object in the prior art, a kind of can be achieved is provided
To the positioning device and localization method at the irregularly shaped object center that the center of irregularly shaped object is positioned.
The present invention provides a kind of positioning device at irregularly shaped object center, and the positioning device includes: air-float turntable, support
Platform, centre bore, multiple stomatas and air inlet, multiple stomatal limiting value ring-band shapes are distributed on the upper surface of the support platform,
The centre bore is arranged on the central point of the upper surface of the support platform, the lower surface of the support platform and the air bearing
Turntable is fixedly connected, and the multiple stomata and centre bore are connected to by the air-float turntable with the air inlet.
The present invention also provides a kind of localization method at irregularly shaped object center, the localization method includes:
Irregularly shaped object to be measured is placed on the upper surface of support platform, so that the center of the object under test and institute
State the centre bore aligned in general of support platform, wherein multiple stomatal limiting value ring-band shapes are distributed in the upper surface of the support platform
On；
It ventilates to by air inlet to air-float turntable and support platform；
The air inflow of air bearing table top is adjusted, so that object under test suspends in the sky；
The gas output in control centre hole is zero and is sequentially reduced the gas output of the stomata of each annulus, and guarantees determinand
Body is in suspended state；
Change the gas output size of the stomata of each annulus to adjust position of the object under test above support platform, so that
The state of object under test tends towards stability；
The gas output for reducing the stomata of each annulus simultaneously, so that the determinand of the centre bore of the support platform and whereabouts
The center of body is aligned.
Compared with prior art, beneficial effect is technical solution of the present invention: passing through the upper table in the support platform
Centre bore and multiple stomatas are set on face, and the multiple stomata and centre bore are connected by the air-float turntable and the air inlet
It is logical, by controlling the gas output of stomata and centre bore, to realize the centre bore of the support platform and the center of object under test
The structure of heart alignment, the localization method and positioning device is simple, is easily achieved in real work production, and solves artificial
It is difficult to the problem of accurately positioning the center of irregularly shaped object.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of positioning device at irregularly shaped object center of the present invention；
Fig. 2 is a kind of side block diagram of embodiment of positioning device at irregularly shaped object center of the present invention；
Fig. 3 is a kind of main structure figure of embodiment of positioning device at irregularly shaped object center of the present invention
Fig. 4 is a kind of flow chart of embodiment of localization method at irregularly shaped object center of the present invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.
The object centre of location in order to solve the other shapes during existing interferometry in addition to circular object is difficult to ask
Topic can not obtain the problem of accurate centre of location etc. in later period turntable center, and the present invention provides a kind of the irregular of embodiment
The positioning device at object center, as shown in Figure 1, Figure 2 and Figure 3, the positioning device include: air-float turntable 11, support platform 12,
Centre bore 121, multiple stomatas 122 and air inlet 13, multiple stomatas 122 form ring-band shape and are distributed in the upper of the support platform 12
On surface 123, the centre bore 121 is arranged on the central point of the upper surface of the support platform 12, the support platform
Lower surface is fixedly connected with the air-float turntable 11, and the multiple stomata 122 and centre bore 121 pass through the air-float turntable 12
It is connected to the air inlet 13.
In specific implementation, the positioning device further include be arranged in a one-to-one correspondence in multiple stomatas and centre bore in it is more
A air outlet valve, by adjusting the size of air outlet valve, to adjust the gas output of stomata.Preferably, the size of air valve is identical,
Only the later period controls to adjust the movement of entire weight bearing object by changing air inflow.
In specific implementation, the multiple stomata 122 is in radial directions since the centre bore 121 of the support platform
It is spacedly distributed in the upper surface of the support platform 123.That is, multiple stomatas 122 form multiple annulus, it is two neighboring
The distance between annulus is identical.
In specific implementation, the diameter of the multiple stomata is different.Specifically, the diameter of the multiple stomata 122
Size is gradually reduced since the centre bore 121 of the support platform along radial direction.That is, in the process of positioning
In, it can control along the air-blowing quantity of the stomata of radial direction since the centre bore 121 of the support platform, to change each
The air-blowing quantity of a annulus stomata.
In specific implementation, the multiple stomata 122 is in a circumferential direction since the centre bore 121 of the support platform
It is angularly distributed in the upper surface 123 of the support platform, so that multiple stomatas 122 are in the upper surface of the support platform 123
On be uniformly distributed.
During actual centralized positioning, object under test is placed on in support platform, generally by determinand
Body is placed on the center of support platform 12, and air bearing turntable provides the effect that calibration is rotated in measurement process.Firstly, to air bearing
The air inflow that turntable 11 and support platform 12 with stomata 122 are inflated, and control air-float turntable 11 is adjusted to smaller
Value, the buoyancy that air inflow generates at this time are not enough to support object under test, then gradually increase the air inflow of air-float turntable 11, to protect
Object under test in card support platform 12 is in stable suspended state.Then first the gas output of centre bore 121 is closed, then
Reduce the gas output of the stomata of each annulus to control the gas output from center to edge and reduce, to guarantee object under test in outlet
During amount variation, balance is slowly found, when finally realizing that object under test is slowly dropped in support platform, air-float turntable 11
Center be object under test center, realize the centralized positioning of irregularly shaped object.
In specific implementation, the present invention also provides a kind of localization methods at the regular object center of embodiment, such as Fig. 4 institute
Show, the localization method includes:
Irregularly shaped object to be measured is placed on the upper surface of support platform by step S41, so that the object under test
The centre bore aligned in general at center and the support platform, wherein multiple stomatal limiting value ring-band shapes are distributed in the support platform
Upper surface on；
Step S42 ventilates to air-float turntable and support platform to by air inlet；
Step S43 adjusts the air inflow of air bearing table top, so that object under test suspends in the sky；
Step S44, the gas output in control centre hole are zero and are sequentially reduced the gas output of the stomata of each annulus, Yi Jibao
Card object under test is in suspended state；
Step S45 changes the gas output size of the stomata of each annulus to adjust object under test above support platform
Position, so that the state of object under test tends towards stability；
Step S46, while reducing the gas output of the stomata of each annulus, so that the centre bore of the support platform and whereabouts
Object under test center alignment.
It in step S42, ventilates to the support platform on air-float turntable and air-float turntable, at this time by adjusting air inlet
Intake valve in mouthful so that the air inflow of support platform is adjusted to smaller value, the buoyancy that gas output generates be not enough to support to
Survey object.
In step S43, the air inflow of support platform is gradually increased, also just gradually increases multiple stomatas of support platform
Gas output, to guarantee that object under test suspends in the sky under the buoyancy of air inlet.
In step S44, object under test is in suspended state at this time, and the gas output in control centre hole is zero, and successively subtracts
The gas output of small each annulus stomata, but guarantee that object under test is constantly in suspended state.
In specific implementation, multiple air outlet valves be arranged in a one-to-one correspondence in multiple stomatas and centre bore in, by adjusting out
The size of air valve, to adjust the gas output of stomata.
In specific implementation, the multiple stomata is in radial directions since the centre bore 121 of the support platform etc.
It is distributed in the upper surface of the support platform.That is, multiple multiple annulus of stomatal limiting value, between two neighboring annulus
Distance be identical.
In specific implementation, the diameter of the multiple stomata is different.Specifically, the diameter of the multiple stomata 122
Size is gradually reduced since the centre bore of the support platform along radial direction.That is, during positioning, it can
To control since the centre bore of the support platform along the air-blowing quantity of the stomata of radial direction, to change each annulus gas
The air-blowing quantity in hole.
In specific implementation, the multiple stomata in a circumferential direction since the centre bore of the support platform angularly
It is distributed in the upper surface of the support platform, so that multiple stomatas are uniformly distributed on the upper surface of the support platform.
During actual centralized positioning, object under test is placed on in support platform, generally by determinand
Body is placed on the center of support platform, and air bearing turntable provides the effect that calibration is rotated in measurement process.Firstly, turning to air bearing
Platform and the leachy support platform of tool are inflated, and by the intake valve of control air inlet, and then control air-float turntable
Air inflow is adjusted to smaller value, and the buoyancy that air inflow generates at this time is not enough to support object under test, then gradually increases air bearing and turns
The air inflow of platform is to increase the gas output of multiple stomatas of support platform, is stablized with guaranteeing that the object under test in support platform is in
Suspended state.Then the air outlet valve adjusted in centre bore first closes the gas output of centre bore, then reduces each annulus
The gas output of stomata is to control the gas output reduction from the center of support platform to edge, to guarantee object under test in outlet quantitative change
During change, balance, finally when object under test slowly drops in support platform, the centre bit of air-float turntable are slowly found
Set be object under test center, realize the centralized positioning of irregularly shaped object.
The positioning device and localization method at regular object center of the invention, by the upper surface of the support platform
Centre bore and multiple stomatas are set, and the multiple stomata and centre bore are connected to by the air-float turntable with the air inlet,
By controlling the gas output of stomata and centre bore, to realize the centre bore of the support platform and the center pair of object under test
The structure of standard, the localization method and positioning device is simple, is easily achieved in real work production, and solve and be manually difficult to
The problem of center of accurate positioning irregularly shaped object.
The above embodiments and description only illustrate the principle of the present invention and most preferred embodiment, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield.
Claims (10)
1. a kind of positioning device at irregularly shaped object center, it is characterised in that: the positioning device includes: air-float turntable, support
Platform, centre bore, multiple stomatas and air inlet, multiple stomatal limiting value ring-band shapes are distributed on the upper surface of the support platform,
The centre bore is arranged on the central point of the upper surface of the support platform, the lower surface of the support platform and the air bearing
Turntable is fixedly connected, and the multiple stomata and centre bore are connected to by the air-float turntable with the air inlet；
Object under test is placed on in support platform, object under test is placed on support platform center,
The air bearing turntable is demarcated for realizing the rotation in measurement process；
The air inflow for being inflated to air-float turntable and the leachy support platform of tool, and controlling air-float turntable is adjusted to smaller
Value, the buoyancy for generating air inflow are not enough to support object under test；
The air inflow of air-float turntable is increased, gradually to guarantee that the object under test in support platform is in stable suspended state；
The gas output of centre bore is closed, reduces the gas output of the stomata of each annulus to control the gas output from center to edge
It reduces, it is final to realize that object under test slowly drops in support platform.
2. positioning device as described in claim 1, it is characterised in that: the positioning device further includes being arranged in a one-to-one correspondence more
Multiple air outlet valves in a stomata and in centre bore.
3. positioning device as described in claim 1, it is characterised in that: the multiple stomata is in radial directions from the support
The centre bore of platform starts to be spacedly distributed in the upper surface of the support platform.
4. positioning device as claimed in claim 3, it is characterised in that: the diameter of the multiple stomata is different.
5. positioning device as claimed in claim 4, it is characterised in that: the diameter of the multiple stomata is along radial direction
It is gradually reduced since the centre bore of the support platform.
6. positioning device as described in claim 1, it is characterised in that: the multiple stomata is in a circumferential direction from the support
The centre bore of platform starts the upper surface for being angularly distributed in the support platform.
7. a kind of localization method at irregularly shaped object center, it is characterised in that: the localization method includes:
Irregularly shaped object to be measured is placed on the upper surface of support platform, so that the center of the object under test and the branch
Support the centre bore aligned in general of platform, wherein multiple stomatal limiting value ring-band shapes are distributed on the upper surface of the support platform；
It ventilates to by air inlet to air-float turntable and support platform；
The air inflow of air-float turntable is adjusted, so that object under test suspends in the sky；
The gas output in control centre hole is zero and is sequentially reduced the outlet of the stomata of each annulus from support platform center to edge
Amount, and guarantee that object under test is in suspended state；
Change the gas output size of the stomata of each annulus to adjust position of the object under test above support platform, so as to be measured
The state of object tends towards stability；
Reduce the gas output of the stomata of each annulus simultaneously, so that the object under test of the centre bore and whereabouts of the support platform
Center alignment.
8. localization method as claimed in claim 7, it is characterised in that: the multiple stomata is along radial direction from the support
The centre bore of platform starts successively to be spacedly distributed in the upper surface of the support platform.
9. localization method as claimed in claim 8, it is characterised in that: the diameter of the multiple stomata is different.
10. localization method as claimed in claim 9, it is characterised in that: the diameter of the multiple stomata is along radial side
To gradually reducing the centre bore since the support platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133635.4A CN106768861B (en) | 2016-12-10 | 2016-12-10 | A kind of positioning device and localization method at irregularly shaped object center |
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|---|---|---|---|
| CN201611133635.4A CN106768861B (en) | 2016-12-10 | 2016-12-10 | A kind of positioning device and localization method at irregularly shaped object center |
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| CN106768861A CN106768861A (en) | 2017-05-31 |
| CN106768861B true CN106768861B (en) | 2019-03-05 |
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| CN201611133635.4A Expired - Fee Related CN106768861B (en) | 2016-12-10 | 2016-12-10 | A kind of positioning device and localization method at irregularly shaped object center |
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| CN107449554A (en) * | 2017-07-19 | 2017-12-08 | 广州金田瑞麟环境科技有限公司 | A kind of high efficiency particulate air filter detection device |
| DE102018008738A1 (en) * | 2018-02-19 | 2019-08-22 | Solukon Ingenieure GbR (vertretungsberechtigte Gesellschafter: Andreas Hartmann, 86391 Stadtbergen und Dominik Schmid, 86165 Augsburg) | CLEANING DEVICE FOR CLEANING THREE-DIMENSIONAL OBJECTS |
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| DE3030001A1 (en) * | 1980-08-08 | 1982-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Grading technique esp. for table tennis balls - is by vibration spherical object on conical support seat by periodic air flow |
| CN101839791A (en) * | 2010-05-19 | 2010-09-22 | 中国科学院电工研究所 | Uncompleted spherical superconducting rotor air floatation balance measurement method |
| CN103615983A (en) * | 2013-11-27 | 2014-03-05 | 天津大学 | Air-floating type table tennis ball diameter and eccentricity detection device and method based on machine vision |
| CN104457578A (en) * | 2014-12-30 | 2015-03-25 | 中国科学院长春光学精密机械与物理研究所 | Air flotation high-precision detection tool |
| CN104776981A (en) * | 2015-03-24 | 2015-07-15 | 中国科学院长春光学精密机械与物理研究所 | Device capable of automatically rotating random balls for calibrating standard lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050919A (en) * | 2016-07-22 | 2016-10-26 | 中国工程物理研究院机械制造工艺研究所 | Vacuum preloading air flotation rotary table |
-
2016
- 2016-12-10 CN CN201611133635.4A patent/CN106768861B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3030001A1 (en) * | 1980-08-08 | 1982-03-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Grading technique esp. for table tennis balls - is by vibration spherical object on conical support seat by periodic air flow |
| CN101839791A (en) * | 2010-05-19 | 2010-09-22 | 中国科学院电工研究所 | Uncompleted spherical superconducting rotor air floatation balance measurement method |
| CN103615983A (en) * | 2013-11-27 | 2014-03-05 | 天津大学 | Air-floating type table tennis ball diameter and eccentricity detection device and method based on machine vision |
| CN104457578A (en) * | 2014-12-30 | 2015-03-25 | 中国科学院长春光学精密机械与物理研究所 | Air flotation high-precision detection tool |
| CN104776981A (en) * | 2015-03-24 | 2015-07-15 | 中国科学院长春光学精密机械与物理研究所 | Device capable of automatically rotating random balls for calibrating standard lens |
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