CN103969845A - Multi-foot heavy-load air-floating supporting device for optical installation and calibration - Google Patents
Multi-foot heavy-load air-floating supporting device for optical installation and calibration Download PDFInfo
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- CN103969845A CN103969845A CN201410187153.1A CN201410187153A CN103969845A CN 103969845 A CN103969845 A CN 103969845A CN 201410187153 A CN201410187153 A CN 201410187153A CN 103969845 A CN103969845 A CN 103969845A
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Abstract
The invention discloses a multi-foot heavy-load air-floating supporting device for optical installation and calibration and belongs to the field of micro-distance displacement devices for ground installation and calibration of large precise optical equipment. The multi-foot heavy-load air-floating supporting device comprises a bearing arm, a bearing arm ball stud, a ball socket shaft assembly, a main force-bearing plate and three air-floating supporting assemblies. According to the multi-foot heavy-load air-floating supporting device, bearing pressure transmitted down from the bearing arm ball stud is evenly borne by three small air-floating blocks sharing the same bottom surface, so that stress borne by the main force-bearing plate is evenly scattered; as a result, the advantages of a short machining period, easy production and low cost of the small air-floating blocks are given to full play, and the defect of limited bearing capacity of a single small air-floating block is overcome. The distribution of the three small air-floating blocks makes the most of stability of a plane defined by three points; meanwhile, multiple ball sockets are used according to the spherical surface centering principle, so that the dynamic transmission path of the whole heavy-load air-floating supporting device is accurate and stable, and the demand of a space optical remote sensor for ground installation and calibration can be fully met.
Description
Technical field
The invention belongs to the dress school, ground of large-scale precision optical device with microspur gearshift field, be specifically related to the heavily loaded air-float supporting device of a kind of polypody optical alignment.
Background technology
Space optical remote sensor belongs to large-scale precision optical device, and it needed to complete on the ground and debug and testing calibration in advance before being admitted to space.Existing method conventionally adopts take the large-scale precision two dimension turntable that straight line or arc guide rail be main body guiding mechanism and fixes space optical remote sensor, to carry out the microspur displacement operation of implementation space optical sensor on fixed datum by large-scale precision two dimension turntable.
Yet, raising day by day with landing ground investigation mapping demand, the volume and weight of space optical remote sensor is all increasing, adopt the method in traditional dress school, optical sensor ground, large-scale precision two dimension turntable implementation space to show some shortcomings, such as, when large-scale precision two dimension turntable carries out microspur tangential movement adjustment under the weight of space optical remote sensor, there will be creeping phenomenon, cause microspur displacement location out of true, resolution is low.Simultaneously, weight for bearing space optical sensor, the continuous precision guide rail that large-scale precision two dimension turntable Structure of need intensity is higher, volume is larger, this has not only significantly increased production cost and the production cycle of guide rail, also resetting difficulty and maintainability have been increased, therefore calibration requirements is debug on the ground that, traditional large-scale precision two dimension turntable gradually cannot meeting spatial optical sensor.
On the other hand, the air supporting that modularization air-float supporting device can be realized under higher bearing load is supported, be aided with micro-adjusting mechanism and can realize high precision microspur adjustment of displacement, but the load-bearing capacity of existing small-sized air supporting piece is limited, and although existing large-scale air supporting piece load-bearing capacity is large, but processing difficulties, the production cycle is long, and cost is high.
Summary of the invention
In order to solve the ground that existing large-scale precision two dimension turntable gradually cannot meeting spatial optical sensor, debug calibration requirements, simultaneously, the load-bearing capacity of existing small-sized air supporting piece is limited, and although existing large-scale air supporting piece load-bearing capacity is large, but processing difficulties, production cycle is long, and the technical matters that cost is high the invention provides the heavily loaded air-float supporting device of a kind of polypody optical alignment.
The technical scheme that technical solution problem of the present invention is taked is as follows:
Polypody optics is debug and is used heavily loaded air-float supporting device, it is characterized in that, this device comprises load bearing arm, load bearing arm ball stud, ball-and-socket shaft assembly, primary load bearing plate and three air supporting supporting components, ball-and-socket shaft assembly comprises load bearing arm ball-and-socket axle, the first cap fall prevention and connection bearing, and air supporting supporting component comprises fastening pad, the little axle of bulb, the gentle floating block of the second cap fall prevention; The upper end of described load bearing arm ball stud is screw rod, and lower end is provided with bulb, and the upper end screw rod of load bearing arm ball stud is threaded with the screw on load bearing arm, and the bulb of load bearing arm ball stud and load bearing arm ball-and-socket axle form the first spherical pair;
Described primary load bearing plate is regular triangular prism structure, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle is connected with the central recess of primary load bearing plate by connection bearing; Described the first cap fall prevention is provided with tapped center pit, and the diameter of this center pit is less than the bulb diameter of load bearing arm ball stud, and the upper surface of the first cap fall prevention and primary load bearing plate is connected;
The little axle of bulb of described three air supporting supporting components is respectively through a drift angle through hole of primary load bearing plate, and the upper end of the little axle of bulb is connected by fastening pad and primary load bearing plate, and fastening pad is connected by the upper surface of bolt and primary load bearing plate; The upper surface of air supporting piece is provided with ball-and-socket, and the center-hole diameter of the second cap fall prevention is less than the bulb diameter of the little axle of bulb, and the second cap fall prevention is connected by the upper surface of bolt and air supporting piece, and the lower end bulb of the little axle of bulb and the ball-and-socket of air supporting piece form the second spherical pair.
The invention has the beneficial effects as follows: this polypody optical alignment has been shared equably by load bearing arm ball stud and transmitted the load-bearing pressure that gets off by three coplanar small-sized air supporting pieces in bottom surface with heavily loaded air-float supporting device, the stress that primary load bearing plate is born is able to decentralized equably, therefore give full play to short, the easy production of small-sized air supporting piece process-cycle, advantage that cost is low, and overcome the limited shortcoming of single small-sized air supporting piece load-bearing capacity.The distribution of three small-sized air supporting pieces takes full advantage of 3 stability actions of determining face, simultaneously, the use of a plurality of socket arrangement has also utilized spherical centering principle, the mechanics bang path that makes whole heavily loaded air-float supporting device accurately, stable, calibration requirements is debug on ground that completely can meeting spatial optical sensor.
Accompanying drawing explanation
Fig. 1 is the stereographic map of heavily loaded air-float supporting device for polypody optical alignment of the present invention;
Fig. 2 is the axial partial sectional view of Fig. 1 side-looking.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1 to Figure 2, polypody optical alignment comprises load bearing arm 1, load bearing arm ball stud 2, ball-and-socket shaft assembly 3, primary load bearing plate 4 and three air supporting supporting components 5 with heavily loaded air-float supporting device, ball-and-socket shaft assembly 3 comprises load bearing arm ball-and-socket axle 3-1, the first cap fall prevention 3-2 and connection bearing 3-3, and air supporting supporting component 5 comprises fastening pad 5-1, the little axle 5-2 of bulb, the gentle floating block 5-4 of the second cap fall prevention 5-3.
The upper end of described load bearing arm ball stud 2 is screw rods, and lower end is provided with bulb; The upper end screw rod of load bearing arm ball stud 2 is threaded with the screw on load bearing arm 1, and the bulb of load bearing arm ball stud 2 and load bearing arm ball-and-socket axle 3-1 form the first spherical pair.
Described primary load bearing plate 4 is regular triangular prism structures, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle 3-1 is connected with the central recess of primary load bearing plate 4 by connection bearing 3-3; Described the first cap fall prevention 3-2 is provided with tapped center pit, and the diameter of this center pit is less than the bulb diameter of load bearing arm ball stud 2, and the upper surface of the first cap fall prevention 3-2 and primary load bearing plate 4 is connected.
During assembling, first the bulb of load bearing arm ball stud 2 is put into load bearing arm ball-and-socket axle 3-1, to form the first spherical pair, by tapped center pit, the first cap fall prevention 3-2 is threaded to again to the position of undercut along the top of load bearing arm ball stud 2 screw rods, and then the upper end screw rod of load bearing arm ball stud 2 is threaded with the screw on load bearing arm 1, finally, with bolt, the upper surface of the outer of the first cap fall prevention 3-2 and force bearing plate 4 is connected.Like this, in the process of the lifting of whole equipment and transhipment, due to the position-limiting action of undercut to the first cap fall prevention 3-2, make the first cap fall prevention 3-2 cannot axially-movable, under the stopping of the first cap fall prevention 3-2, the bulb of load bearing arm ball stud 2 also just can not slippage from load bearing arm ball-and-socket axle 3-1.
Described three air supporting supporting components 5 are small-sized air supporting piece, the little axle 5-2 of bulb of each air supporting supporting component 5 passes respectively a drift angle through hole of primary load bearing plate 4, the upper end of the little axle 5-2 of bulb is connected by fastening pad 5-1 and primary load bearing plate 4, and fastening pad 5-1 is connected by the upper surface of bolt and primary load bearing plate 4; The upper surface of air supporting piece 5-4 is provided with ball-and-socket, the center-hole diameter of the second cap fall prevention 5-3 is less than the bulb diameter of the little axle 5-2 of bulb, the second cap fall prevention 5-3 is connected by the upper surface of bolt and air supporting piece 5-4, and the ball-and-socket of the lower end bulb of the little axle 5-2 of bulb and air supporting piece 5-4 forms the second spherical pair.The function of the second cap fall prevention 5-3 and the first cap fall prevention 3-2 are similar, and it can prevent the little axle 5-2 of bulb slippage from the ball-and-socket of air supporting piece 5-4 upper surface in the process of whole equipment lifting and transhipment.
When specifically application polypody optical alignment of the present invention is with heavily loaded air-float supporting device, first described device is placed on high accuracy platform 6, and give each air supporting piece 5-4 ventilation with source of the gas, under gas pressure, between the high accuracy platform 6 of each air supporting piece 5-4 and himself below, can form one deck air film, thereby air supporting piece 5-4 is floated, produce a lift of gas F who is proportional to air pressure, lift of gas F concentrates and acts in formed the second spherical pair of ball-and-socket of the little axle 5-2 of this bulb and air supporting piece 5-4 simultaneously.Three air supporting supporting components 5 are 120 ° and are uniformly distributed, from 3 coplanar principles, definite primary load bearing plate 4 that three the second spherical pairs are unique and the position of load bearing arm ball-and-socket axle 3-1, and the lift of gas F of each air supporting piece 5-4 is concentrated to be applied to load bearing arm ball-and-socket axle 3-1 upper, make a concerted effort for 3F.
Described ball stud is that spherical pair is connected with ball-and-socket axle, described ball-and-socket axle is that revolute pair is connected with primary load bearing plate, and after the source of the gas of air supporting piece 5-4 is closed, between air supporting piece 5-4 and high accuracy platform 6, air film disappears, under Action of Gravity Field, three air supporting supporting components 5 are fitted with high accuracy platform 6.When load bearing arm ball stud 2 and primary load bearing plate 4 are any angle, load bearing arm 1 still can be realized along the axis of load bearing arm ball stud 2 and move up and down or rotate along this axis by rotating screw thread, and hence one can see that, and polypody optics debugs with heavily loaded air-float supporting device can realize load bearing arm multifreedom motion.
This polypody optical alignment has been shared equably by load bearing arm ball stud and has been transmitted the load-bearing pressure that gets off by three coplanar small-sized air supporting pieces in bottom surface with heavily loaded air-float supporting device, the stress that primary load bearing plate is born is able to decentralized equably, therefore give full play to short, the easy production of small-sized air supporting piece process-cycle, advantage that cost is low, and overcome the limited shortcoming of single small-sized air supporting piece load-bearing capacity.The distribution of three small-sized air supporting pieces takes full advantage of 3 stability actions of determining face, simultaneously, the use of a plurality of socket arrangement has also utilized spherical centering principle, the mechanics bang path that makes whole heavily loaded air-float supporting device accurately, stable, calibration requirements is debug on ground that completely can meeting spatial optical sensor.
Claims (1)
1. polypody optics is debug and is used heavily loaded air-float supporting device, it is characterized in that, this device comprises load bearing arm (1), load bearing arm ball stud (2), ball-and-socket shaft assembly (3), primary load bearing plate (4) and three air supporting supporting components (5), ball-and-socket shaft assembly (3) comprises load bearing arm ball-and-socket axle (3-1), the first cap fall prevention (3-2) and connection bearing (3-3), and air supporting supporting component (5) comprises fastening pad (5-1), the little axle of bulb (5-2), the gentle floating block of the second cap fall prevention (5-3) (5-4); The upper end of described load bearing arm ball stud (2) is screw rod, lower end is provided with bulb, the upper end screw rod of load bearing arm ball stud (2) is threaded with the screw on load bearing arm (1), and the bulb of load bearing arm ball stud (2) and load bearing arm ball-and-socket axle (3-1) form the first spherical pair;
Described primary load bearing plate (4) is regular triangular prism structure, the rotation center of its upper surface is provided with central recess, each drift angle of its triangular prism upper surface equilateral triangle is respectively equipped with a drift angle through hole, and described load bearing arm ball-and-socket axle (3-1) is connected with the central recess of primary load bearing plate (4) by connection bearing (3-3); Described the first cap fall prevention (3-2) is provided with tapped center pit, and the diameter of this center pit is less than the bulb diameter of load bearing arm ball stud (2), and the first cap fall prevention (3-2) is connected with the upper surface of primary load bearing plate (4);
The little axle of bulb (5-2) of described three air supporting supporting components (5) passes respectively a drift angle through hole of primary load bearing plate (4), the upper end of the little axle of bulb (5-2) is connected by fastening pad (5-1) and primary load bearing plate (4), and fastening pad (5-1) is connected by the upper surface of bolt and primary load bearing plate (4); The upper surface of air supporting piece (5-4) is provided with ball-and-socket, the center-hole diameter of the second cap fall prevention (5-3) is less than the bulb diameter of the little axle of bulb (5-2), the second cap fall prevention (5-3) is connected by the upper surface of bolt and air supporting piece (5-4), and the ball-and-socket of the lower end bulb of the little axle of bulb (5-2) and air supporting piece (5-4) forms the second spherical pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187153.1A CN103969845B (en) | 2014-05-05 | 2014-05-05 | Polypody optics dress school heavy carrier gas over draft support arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187153.1A CN103969845B (en) | 2014-05-05 | 2014-05-05 | Polypody optics dress school heavy carrier gas over draft support arrangement |
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| Publication Number | Publication Date |
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| CN103969845A true CN103969845A (en) | 2014-08-06 |
| CN103969845B CN103969845B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410187153.1A Active CN103969845B (en) | 2014-05-05 | 2014-05-05 | Polypody optics dress school heavy carrier gas over draft support arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143955A (en) * | 2016-07-11 | 2016-11-23 | 上海卫星装备研究所 | A kind of heavy load high-precise synchronization support system for three-axis air-bearing table |
| CN113967924A (en) * | 2021-10-28 | 2022-01-25 | 郑州轻工业大学 | Self-adaptive compliant feature test analysis platform for thin-wall fragile part operation manipulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949593A (en) * | 1998-03-16 | 1999-09-07 | Eastman Kodak Company | Off-loaded strut joint mirror support system |
| CN2480870Y (en) * | 2001-05-09 | 2002-03-06 | 扬博企业股份有限公司 | Base board air floating type carrying platform |
| CN102565997A (en) * | 2012-01-20 | 2012-07-11 | 中国科学院上海技术物理研究所 | High-precision focusing device used for space optical remote sensing instrument |
-
2014
- 2014-05-05 CN CN201410187153.1A patent/CN103969845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949593A (en) * | 1998-03-16 | 1999-09-07 | Eastman Kodak Company | Off-loaded strut joint mirror support system |
| CN2480870Y (en) * | 2001-05-09 | 2002-03-06 | 扬博企业股份有限公司 | Base board air floating type carrying platform |
| CN102565997A (en) * | 2012-01-20 | 2012-07-11 | 中国科学院上海技术物理研究所 | High-precision focusing device used for space optical remote sensing instrument |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143955A (en) * | 2016-07-11 | 2016-11-23 | 上海卫星装备研究所 | A kind of heavy load high-precise synchronization support system for three-axis air-bearing table |
| CN113967924A (en) * | 2021-10-28 | 2022-01-25 | 郑州轻工业大学 | Self-adaptive compliant feature test analysis platform for thin-wall fragile part operation manipulator |
| CN113967924B (en) * | 2021-10-28 | 2024-02-09 | 郑州轻工业大学 | Self-adaptive compliance characteristic test analysis platform for thin-wall fragile part operation manipulator |
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| CN103969845B (en) | 2016-06-01 |
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