CN104656221B - A kind of spiral accurate levelling gear for optical device - Google Patents
A kind of spiral accurate levelling gear for optical device Download PDFInfo
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- CN104656221B CN104656221B CN201510075390.3A CN201510075390A CN104656221B CN 104656221 B CN104656221 B CN 104656221B CN 201510075390 A CN201510075390 A CN 201510075390A CN 104656221 B CN104656221 B CN 104656221B
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- nut
- levelling gear
- adjustment plate
- attaching nut
- spheric washer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/001—Counterbalanced structures, e.g. surgical microscopes
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
A kind of spiral accurate levelling gear for optical device belongs to Light Electrical field of engineering technology, and in adjustment plate, the levelling gear includes mechanism's circumference uniform distribution：Bearing, attaching nut, adjusting nut, the first spheric washer are to, the second spheric washer to, locking nut and connecting bolt；Connecting bolt sequentially pass through bearing, attaching nut, adjusting nut, the first spheric washer to, adjustment plate, the second spheric washer pair and locking nut；Bearing and attaching nut's screw thread are linked；Attaching nut and adjusting nut are threadedly coupled；Connecting bolt is threadedly coupled with attaching nut；The current position of adjustment plate is adjusted by adjusting adjusting nut, after adjustment is finished, is fixed by locking nut and locked.The present invention according to 3 levelling principles, the characteristics of using fine thread fine setting and self-locking, anti-rotation, locking effect that left-right rotary screw thread is used cooperatively, it is ensured that the precision of levelling gear.Levelling gear simple structure of the present invention, efficiency high, low cost, error are small, more reliable and more stable.
Description
Technical field
The invention belongs to Light Electrical field of engineering technology, and in particular to a kind of spiral accurate leveling for optical device
Mechanism.
Background technology
In optical system, object point is perfect, and the optical axis of optical system with light pencil imaging in paraxial region on optical axis
It is to be together decided on by the optical axis of each microscope group, therefore, the installation and debugging stage of optoelectronic device, it is often necessary to in optical lens
Secondary mirror or correction microscope group be adjusted, enable their optical axis with the light shaft coaxle of primary mirror, to realize that system optics are improved into
As function.Secondly, after optical system installation and debugging are finished, due to the influence of the factors such as pressure, temperature, gravity, secondary mirror or correction
The optical axis of microscope group will also produce different degrees of bias and inclination relative to primary mirror optical axis, now, it is also desirable to secondary mirror or correction
The optical axis of microscope group is adjusted, and is allowed to coaxial with primary mirror optical axis.Again, when related optical experiment is carried out in laboratory, also pass through
Often need for the optical axis of optical lens to be adjusted to horizontality, facilitate the docking of subsequent optical path, be in course of adjustment, by imaging
CCD can in real time observe Imaging of the adjustment amount to optical system, and adjustment mechanism needs to have stability higher and divides
Resolution.The adjustment of secondary mirror or correction microscope group optical axis is generally divided into eccentric adjustment and tilt adjustments, and its corresponding device is respectively partially
Heart adjusting apparatus and levelling device (inclination adjusting device), for traditional levelling device is less efficient, relatively costly, error is larger
The problems such as.
Determine a principle for plane according to 3 points, levelling gear typically uses supported at three point leveling, and 3 leveling are not only
A plane can be determined, and have light path alignment repeatability higher, three point branch when can ensure that large photoelectric equipment works
It is most simply also efficiency highest support leveling mode that support leveling is.Divided by supporting way, levelling gear can be divided into fluid pressure type
With it is mechanical, although fluid pressure type leveling unit volume in output power it is larger, it has some shortcomings, such as：Hydraulic pressure
Oil has compressibility, the coefficient of viscosity of hydraulic oil is varied with temperature, hermetic devices have leakage problem, hydraulic oil has can
Combustion property, itself can not realize mechanical interlocking etc., and mechanical leveling environmental suitability is relatively strong, can realize self-locking, thus it is of the invention
Leveling mode uses 3 points of mechanical leveling.The 3 points of mechanical levelling gears commonly used in current engineering have three kinds：Spiral is very heavy
Top formula, shoe deformation formula, wedge type.
The content of the invention
In order to solve problems of the prior art, the invention provides a kind of spiral precision for optical device
Levelling gear, the small technical scheme of simple and reliable for structure, low cost, precision and the high resolution, efficiency high, error solves light
The problems such as precision, efficiency, cost of electric equipment levelling gear.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of spiral accurate levelling gear for optical device, mechanism's circumference uniform distribution in adjustment plate, the leveling
Mechanism includes：Bearing, attaching nut, adjusting nut, the first spheric washer are to, the second spheric washer to, locking nut and connection
Bolt；Connecting bolt sequentially pass through bearing, attaching nut, adjusting nut, the first spheric washer to, adjustment plate, the second ball ring
Circle pair and locking nut；Bearing and attaching nut's screw thread are linked；Attaching nut and adjusting nut are threadedly coupled；Connecting bolt and company
Connected nut is threadedly coupled；By the position that to adjust the position of adjusting nut current to adjust adjustment plate, after adjustment is finished, by lock
Tight nut fixes locking.
The beneficial effects of the invention are as follows：The present invention finely tunes the spy with self-locking according to 3 levelling principles using fine thread
Point, anti-rotation, locking effect that left-right rotary screw thread is used cooperatively, and the measurement of minute angle or micro-displacement is converted into big position
The measurement of shifting, and leveling scheme meets abbe's principle, it is ensured that the precision of levelling gear.Levelling gear simple structure of the present invention,
Efficiency high, low cost, error are small, more reliable and more stable.
Brief description of the drawings
A kind of Fig. 1 spiral accurate levelling gear levelling principle figures for optical device of the present invention
A kind of sectional view of Fig. 2 spiral accurate levelling gears for optical device of the present invention
In figure：1st, bearing, 2, attaching nut, 3, adjusting nut, the 4, first spheric washer pair, the 5, second spheric washer pair,
6th, adjustment plate, 7, locking nut and 8, connecting bolt.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
As shown in figure 1, three groups of completely identical in structure spiral levelling gears for optical device are arranged in into adjustment
Different 3 points on the edge of plate 6 are 1., 2., 3. (120 degree of circumference is uniform), and secondary mirror or correction microscope group are arranged on the center of adjustment plate 6,
And it is coplanar with adjustment plate 6, by adjusting the height of the position of adjusting nut 3 in this three groups of levelling gears, can efficiently, accurately to secondary
Mirror or correction microscope group carry out leveling, and the leveling scheme meets abbe's principle, it is ensured that the precision of levelling gear.
As shown in figure 1, this is used for the spiral accurate levelling gear circumference uniform distribution of optical device in adjustment plate 6, the tune
Flattening mechanism includes：Bearing 1, attaching nut 2, adjusting nut 3, the first spheric washer are to the 4, second spheric washer to 5, locking nut
7 and connecting bolt 8；Connecting bolt 8 sequentially passes through bearing 1, attaching nut 2, adjusting nut 3, the first spheric washer to 4, adjustment
Plate 6, the second spheric washer are to 5 and locking nut 7；Bearing 1 and the screw thread of attaching nut 2 are linked；Attaching nut 2 and adjusting nut 3
Threaded connection；Connecting bolt 8 is threadedly coupled with attaching nut 2；Adjustment plate 6 is adjusted by adjusting the position of adjusting nut 3
Position.Bearing 1 is the larger closely-pitched triangle of thread form angle with attaching nut 2, attaching nut 2 and the form of thread of adjusting nut 3
Screw thread, it has fine adjustment function and self-locking property is preferably, improves the precision and reliability of levelling gear.Furthermore it is possible to pass through
Change attaching nut 2 with the pitch of adjusting nut 3 to change the precision of levelling gear.
By be imaged CCD observe optical system imaging, calculate levelling gear 1. (2., 3.) in adjusting nut 3 need
The displacement for adjusting up or down, unclamps the locking nut 7 in three groups of levelling gears, then turns tune counterclockwise or clockwise
Whole nut 3, now, the corresponding points in adjustment plate 6 will move a segment distance with adjusting nut 3, when adjusting nut 3 reaches target
Behind position, whether the imaging for observing optical system reaches leveling requirement, is then to tighten locking nut 7, and adjustment is completed；It is no, just again
Calculated, adjusted and observed, until reaching leveling requirement.During adjustment, due to bearing 1, the threaded connection of attaching nut 2
Rotation direction and attaching nut 2, the threaded connection of adjusting nut 3 it is oppositely oriented, such as bearing 1 and attaching nut 2 are left-handed spiral shell
Line is connected；Attaching nut 2 and adjusting nut 3 are right-handed thread connection；Connecting bolt 8 and attaching nut 2 are right-handed thread connection.
When it is counterclockwise or clockwise turn adjusting nut 3 when, according to screw-driven principle, can effectively prevent attaching nut 2 and connection spiral shell
Bolt 8 rotates, and the first spheric washer to 4 and second spheric washer to 5 can automatic adjusting positions, make contact therewith zero
Part can better adapt to adjustment and uniform force, improve levelling gear service life and levelling gear it is reliable and stable.
Claims (5)
1. a kind of spiral accurate levelling gear for optical device, it is characterised in that mechanism's circumference uniform distribution is in adjustment plate
(6) on, the levelling gear includes：Bearing (1), attaching nut (2), adjusting nut (3), the first spheric washer are to (4), the second ball
Face packing ring is to (5), locking nut (7) and connecting bolt (8)；The connecting bolt (8) sequentially passes through bearing (1), attaching nut
(2), adjusting nut (3), the first spheric washer to (4), adjustment plate (6), the second spheric washer to (5) and locking nut (7)；Branch
Seat (1) and attaching nut (2) screw thread link；Attaching nut (2) and adjusting nut (3) are threadedly coupled；Connecting bolt (8) be connected
Nut (2) is threadedly coupled；By the position that to adjust the position of adjusting nut (3) current to adjust adjustment plate (6), adjustment is finished
Afterwards, locked by the way that locking nut (7) is fixed, the bearing (1) and attaching nut (2) are threadedly coupled and attaching nut (2) and tune
Whole nut (3) threaded connection is in opposite direction；Attaching nut (2) and adjusting nut (3) threaded connection with connecting bolt (8) and be connected
The threaded connection direction of nut (2) is identical.
2. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterised in that described
First spheric washer adjusts the pitch tilt of adjustment plate (6) to (5) to (4) and the second spheric washer for mating spherical surfaces, makes tune
Whole plate (6) uniform force.
3. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterised in that described
Bearing (1) is closely-pitched angular thread with the screw thread of the screw thread, attaching nut (2) and adjusting nut (3) of attaching nut (2).
4. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterised in that described
The quantity that levelling gear is distributed in adjustment plate (6) is three.
5. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterised in that need
The microscope group of leveling is arranged on the center of adjustment plate (6), and coplanar with adjustment plate (6), adjustment plate (6) it is straight with diameter greater than microscope group
Footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075390.3A CN104656221B (en) | 2015-02-12 | 2015-02-12 | A kind of spiral accurate levelling gear for optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510075390.3A CN104656221B (en) | 2015-02-12 | 2015-02-12 | A kind of spiral accurate levelling gear for optical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104656221A CN104656221A (en) | 2015-05-27 |
| CN104656221B true CN104656221B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510075390.3A Active CN104656221B (en) | 2015-02-12 | 2015-02-12 | A kind of spiral accurate levelling gear for optical device |
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| CN (1) | CN104656221B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601578A (en) * | 2015-10-16 | 2017-04-26 | 沈阳拓荆科技有限公司 | Level adjustment device |
| CN106895830A (en) * | 2017-03-03 | 2017-06-27 | 中国科学院长春光学精密机械与物理研究所 | A kind of Wedge-type precision levelling gear for optics load light axial adjustment |
| RU180328U1 (en) * | 2017-11-09 | 2018-06-08 | Российская Федерация, от имени которой выступает Государственная корпорация по космической деятельности "РОСКОСМОС" | TELESCOPE MIRROR MOUNTING DEVICE |
| CN109185317A (en) * | 2018-10-23 | 2019-01-11 | 卢玉珊 | The locking method of clasp nut |
| GB2584540B (en) * | 2019-04-09 | 2022-07-13 | Bae Systems Plc | A mount |
| CN110064970A (en) * | 2019-04-11 | 2019-07-30 | 复旦大学 | A kind of aligning and leveling mechanism for workpiece accurate measurement |
| CN109945036A (en) * | 2019-04-22 | 2019-06-28 | 沪东重机有限公司 | Stepless plane adjusting device, power equipment for ship and installation method |
| CN110370017A (en) * | 2019-09-03 | 2019-10-25 | 散裂中子源科学中心 | A kind of ball pad posture adjustment film height-regulating mechanism |
| CN110596848A (en) * | 2019-10-22 | 2019-12-20 | 中国科学院上海光学精密机械研究所 | Vibration-proof two-dimensional optical adjusting frame and using method |
| CN112108902B (en) * | 2020-08-31 | 2022-06-28 | 西安精雕精密机械工程有限公司 | Leveling structure and leveling method |
| CN112503351A (en) * | 2020-10-29 | 2021-03-16 | 中国科学院西安光学精密机械研究所 | Thread type leveling mechanism for theodolite |
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|---|---|---|---|---|
| US4298248A (en) * | 1980-05-16 | 1981-11-03 | The United States Of America As Represented By The Secretary Of The Navy | Pivotal support with independent adjusting elements and locking means |
| JPH04343307A (en) * | 1991-05-20 | 1992-11-30 | Ricoh Co Ltd | Laser adjusting device |
| CN1191320A (en) * | 1998-03-04 | 1998-08-26 | 中国兵器工业第二○五研究所 | Multi-dimensional adjustable working platform |
| CN202533636U (en) * | 2012-03-09 | 2012-11-14 | 上海微电子装备有限公司 | Connecting mechanism used for focusing and leveling |
| CN202563144U (en) * | 2012-05-16 | 2012-11-28 | 中国工程物理研究院应用电子学研究所 | Optical mirror bracket pitch adjusting device with locking mechanism |
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2015
- 2015-02-12 CN CN201510075390.3A patent/CN104656221B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4298248A (en) * | 1980-05-16 | 1981-11-03 | The United States Of America As Represented By The Secretary Of The Navy | Pivotal support with independent adjusting elements and locking means |
| JPH04343307A (en) * | 1991-05-20 | 1992-11-30 | Ricoh Co Ltd | Laser adjusting device |
| CN1191320A (en) * | 1998-03-04 | 1998-08-26 | 中国兵器工业第二○五研究所 | Multi-dimensional adjustable working platform |
| CN202533636U (en) * | 2012-03-09 | 2012-11-14 | 上海微电子装备有限公司 | Connecting mechanism used for focusing and leveling |
| CN202563144U (en) * | 2012-05-16 | 2012-11-28 | 中国工程物理研究院应用电子学研究所 | Optical mirror bracket pitch adjusting device with locking mechanism |
Non-Patent Citations (1)
| Title |
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| 低频力学谱仪面板支撑调平机构的设计;茆琦 等;《机械设计与制造》;20130630;第46-48页 * |
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| Publication number | Publication date |
|---|---|
| CN104656221A (en) | 2015-05-27 |
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