CN106768861A - A kind of positioner and localization method at irregularly shaped object center - Google Patents

A kind of positioner and localization method at irregularly shaped object center Download PDF

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Publication number
CN106768861A
CN106768861A CN201611133635.4A CN201611133635A CN106768861A CN 106768861 A CN106768861 A CN 106768861A CN 201611133635 A CN201611133635 A CN 201611133635A CN 106768861 A CN106768861 A CN 106768861A
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CN
China
Prior art keywords
support platform
centre bore
air
stomata
positioner
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CN201611133635.4A
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CN106768861B (en
Inventor
闫丰
武东城
朱岩
高松涛
苗二龙
隋永新
杨怀江
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Priority to CN201611133635.4A priority Critical patent/CN106768861B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00Testing of optical apparatus; Testing structures by optical methods not otherwise provided for

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

The present invention relates to a kind of positioner and localization method at irregularly shaped object center, the positioner 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 by the air-float turntable with the air inlet.

Description

A kind of positioner and localization method at irregularly shaped object center
Technical field
The present invention relates to optical element detection technique field, more particularly to a kind of positioner at irregularly shaped object center and Localization method.
Background technology
In high-precision optical detection process, with the raising of accuracy of detection, for the influence energy of mechanical structure micro-vibration Enough change position and the deformation of element under test., it is necessary to high-precision angle block gauge is right to complete during general measure mechanical structure 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 turntable, realize demarcating the accurate angle of angle block gauge by rotating table.
And the premise that the accurate angle of angle block gauge is demarcated is, it is necessary to the position of angle block gauge to be measured necessarily be in the center of turntable The heart, and the shape of general angle block gauge is generally triangle or quadrangle etc., and it is felt relieved for this non-circular object Relatively difficult, general is generally visually to carry out centralized positioning so that the precision of positioning is not high, causes the angle mistake in measurement angle block gauge Cheng Zhong, precision is difficult to be lifted.
The content of the invention
Present invention seek to address that the technical problem for positioning is difficult to irregularly shaped object in the prior art, there is provided one kind is capable of achieving The positioner and localization method at the irregularly shaped object center positioned to the center of irregularly shaped object.
The present invention provides a kind of positioner at irregularly shaped object center, and the positioner 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 supporting Turntable is fixedly connected, and the multiple stomata and centre bore are connected by the air-float turntable with the air inlet.
The present invention also provides a kind of localization method at irregularly shaped object center, and 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 The centre bore aligned in general of support platform is stated, wherein, multiple stomatal limiting value ring-band shapes are distributed in the upper surface of the support platform On;
To being ventilated to air-float turntable and support platform by air inlet;
The air inflow of air supporting table top is adjusted, so that object under test suspends in the air;
The gas output in control centre hole is zero and is sequentially reduced the gas output of the stomata of each annulus, and ensures determinand Body is in suspended state;
Change the gas output size of 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;
Reduce the gas output of the stomata of each annulus simultaneously, so that the centre bore of the support platform and the determinand for falling The center alignment of body.
Compared with prior art, beneficial effect is technical scheme:By 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 with the air inlet It is logical, by controlling the gas output of stomata and centre bore, so as to realize the centre bore of the support platform and the center of object under test The heart is aligned, the simple structure of the localization method and positioner, is easily achieved in real work production, and solves artificial The problem at the center for being difficult to accurately to position irregularly shaped object.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of positioner at irregularly shaped object center of the present invention;
Fig. 2 is a kind of side block diagram of embodiment of positioner at irregularly shaped object center of the present invention;
Fig. 3 is a kind of front view structure figure of embodiment of positioner 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 embodiment of the invention is described further below in conjunction with the accompanying drawings.
Asked in order to the object centre of location for solving the other shapes during existing interferometry in addition to circular object is difficult Topic, the problem of the accurate centre of location etc. cannot be obtained in later stage turntable center, and the present invention provides a kind of the irregular of embodiment The positioner at object center, as shown in Figure 1, Figure 2 and Figure 3, the positioner includes: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 Connected with the air inlet 13.
In specific implementation, it is many in multiple stomatas and in centre bore that the positioner also includes that one-to-one corresponding is arranged on Individual air outlet valve, by adjusting the size of air outlet valve, so as to adjust the gas output of stomata.Preferably, the size of air valve is identical, Simply the later stage motion of whole heavy burden object is controlled to adjust 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 123 of the support platform.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 progressively reduces along radial direction since the centre bore 121 of the support platform.That is, in the process of positioning In, the air-blowing quantity of the stomata since the centre bore 121 of the support platform along radial direction can be controlled, so as to change each The air-blowing quantity of individual annulus stomata.
In specific implementation, the multiple stomata 122 is in a circumferential direction since the centre bore 121 of the support platform Angularly it is distributed in the upper surface 123 of the support platform so that multiple stomatas 122 are in the upper surface 123 of the support platform 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 supporting turntable provides the effect that demarcation is rotated in measurement process.First, to air supporting Turntable 11 and the support platform 12 with stomata 122 are inflated, and control the air inflow of air-float turntable 11 to be adjusted to smaller Value, the buoyancy that now air inflow is produced is not enough to support object under test, then progressively increases the air inflow of air-float turntable 11, to protect Object under test in card support platform 12 is in the suspended state of stabilization.Then first the gas output of centre bore 121 is closed, then Reduce the gas output of stomata of each annulus to control the gas output from center to edge to reduce, to ensure object under test in outlet During amount change, balance is slowly found, finally realize that object under test is slowly dropped to when 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 method at the regular object center of embodiment, such as Fig. 4 institutes Show, the localization method includes:
Step S41, irregularly shaped object to be measured is placed on the upper surface of support platform, so that the object under test Center and the centre bore aligned in general of the support platform, wherein, multiple stomatal limiting value ring-band shapes are distributed in the support platform Upper surface on;
Step S42, to being ventilated to air-float turntable and support platform by air inlet;
Step S43, adjusts the air inflow of air supporting table top, so that object under test suspends in the air;
Step S44, the gas output in control centre hole is zero and is 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 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 reduce 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.
In step S42, the support platform on air-float turntable and air-float turntable is ventilated, now by adjusting air inlet Intake valve in mouthful so that the air inflow of support platform is adjusted to smaller value, the buoyancy that its gas output is produced is not enough to support and treats Survey object.
In step S43, the air inflow of support platform is progressively increased, also just progressively increase multiple stomatas of support platform Gas output, with ensure object under test air inlet buoyancy low suspension in the air.
In step S44, now object under test is in suspended state, and the gas output in control centre hole is zero, and is subtracted successively The gas output of small each annulus stomata, but ensure that object under test is constantly in suspended state.
In specific implementation, multiple air outlet valves are corresponded and are arranged in multiple stomatas and in centre bore, by adjusting out The size of air valve, so as 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 stomatal limiting value multiple annulus, 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 progressively reduces along radial direction since the centre bore of the support platform.That is, during positioning, can To control the air-blowing quantity of the stomata since the centre bore of the support platform along radial direction, so as 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 supporting turntable provides the effect that demarcation is rotated in measurement process.First, air supporting is turned Platform and the leachy support platform of tool are inflated, and by controlling the intake valve of air inlet, and then control air-float turntable Air inflow is adjusted to smaller value, and the buoyancy that now air inflow is produced is not enough to support object under test, then progressively increases air supporting and turns The air inflow of platform is the gas output of the multiple stomatas for increasing support platform, to ensure that the object under test in support platform is in stabilization Suspended state.Then the air outlet valve in regulation centre bore first closes the gas output of centre bore, then reduces each annulus The gas output of stomata to control the gas output from the center of support platform to edge to reduce, to ensure object under test in outlet quantitative change During change, balance, finally when object under test is slowly dropped in support platform, the centre bit of air-float turntable are slowly found Put be object under test center, realize the centralized positioning of irregularly shaped object.
The positioner 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 by the air-float turntable with the air inlet, By controlling the gas output of stomata and centre bore, so as to realize the centre bore of the support platform and the center pair of object under test The simple structure of standard, the localization method and positioner, is easily achieved, and solve and be manually difficult in real work production The problem at the center of accurate positioning irregularly shaped object.
Merely illustrating the principles of the invention described in above-described embodiment and specification and most preferred embodiment, are not departing from this On the premise of spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements both fall within requirement and protect In the scope of the invention of shield.

Claims (10)

1. a kind of positioner at irregularly shaped object center, it is characterised in that:The positioner 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 supporting Turntable is fixedly connected, and the multiple stomata and centre bore are connected by the air-float turntable with the air inlet.
2. positioner as claimed in claim 1, it is characterised in that:The positioner is also arranged on many including one-to-one corresponding Multiple air outlet valves in individual stomata and in centre bore.
3. positioner as claimed 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. positioner as claimed in claim 3, it is characterised in that:The diameter of the multiple stomata is different.
5. positioner as claimed in claim 4, it is characterised in that:The diameter of the multiple stomata is along radial direction Progressively reduce since the centre bore of the support platform.
6. positioner as claimed 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 angularly to be distributed in the upper surface of 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 The centre bore aligned in general of platform is supportted, wherein, multiple stomatal limiting value ring-band shapes are distributed on the upper surface of the support platform;
To being ventilated to air-float turntable and support platform by air inlet;
The air inflow of air supporting table top is adjusted, so that object under test suspends in the air;
The gas output in control centre hole is zero and is sequentially reduced the gas output of the stomata of each annulus, and is ensured at object under test In suspended state;
Change the gas output size of 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 of the support platform and whereabouts Center is aligned.
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 to be spacedly distributed successively 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 direction side Progressively reduce to since the centre bore of the support platform.
CN201611133635.4A 2016-12-10 2016-12-10 A kind of positioning device and localization method at irregularly shaped object center Expired - Fee Related CN106768861B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3536424A1 (en) * 2018-02-19 2019-09-11 Solukon Ingenieure GbR 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
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP3536424A1 (en) * 2018-02-19 2019-09-11 Solukon Ingenieure GbR Cleaning device for cleaning three-dimensional objects

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