CN104656221A - Screw-type precise leveling mechanism for optical equipment - Google Patents
Screw-type precise leveling mechanism for optical equipment Download PDFInfo
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- CN104656221A CN104656221A CN201510075390.3A CN201510075390A CN104656221A CN 104656221 A CN104656221 A CN 104656221A CN 201510075390 A CN201510075390 A CN 201510075390A CN 104656221 A CN104656221 A CN 104656221A
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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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Abstract
The invention provides a screw-type precise leveling mechanism for optical equipment, and belongs to the technical field of optical electromechanical engineering. Three groups of mechanisms are circumferentially and uniformly distributed on an adjustment board. The leveling mechanism comprises a support, a connection nut, an adjustment nut, a first spherical washer pair, a second spherical washer pair, a locking nut and a connection bolt, wherein the connection bolt sequentially penetrates through the support, the connection nut, the adjustment nut, the first spherical washer pair, the adjustment board, the second spherical washer pair and the locking nut; the support is in threaded connection with the connection nut; the connection nut is in threaded connection with the adjustment nut; the connection bolt is in threaded connection with the connection nut; the current position of the adjustment board is adjusted through the adjustment nut, and after adjustment, the adjustment board is fixed and locked by the locking nut. According to the three-point leveling principle, the fine adjustment and self-locking characteristics of fine threads and the anti-rotation and anti-loosening effects realized by matching of left-hand and right-hand threads are used, and the precision of the leveling mechanism is guaranteed. The leveling mechanism has simple structure, high efficiency, low cost, small error and better stability and reliability.
Description
Technical field
The invention belongs to Light Electrical field of engineering technology, be specifically related to a kind of spiral accurate levelling gear for optical device.
Background technology
In optical system, on optical axis, object point is perfect in paraxial region with light pencil imaging, and the optical axis of optical system is jointly determined by the optical axis of each mirror group, therefore, the Installation and Debugging stage of optoelectronic device, usually need to adjust the secondary mirror in optical lens or corrective lens (eye protection) group, make they optical axis can with the light shaft coaxle of primary mirror, improve imaging function to realize system optics.Secondly, after optical system Installation and Debugging, due to the impact of the factors such as pressure, temperature, gravity, the optical axis of secondary mirror or corrective lens (eye protection) group relative to primary mirror optical axis also by the bias that produces in various degree and inclination, now, also need to be adjusted the optical axis of secondary mirror or corrective lens (eye protection) group, make it coaxial with primary mirror optical axis.Again, when carrying out related optical experiment in laboratory, also the optical axis of optical lens is often needed to be adjusted to horizontality, facilitate the docking of subsequent optical path, be in course of adjustment, can observe the Imaging of adjustment amount to optical system in real time by imaging CCD, adjusting mechanism needs to possess higher stability and resolution.The adjustment of secondary mirror or corrective lens (eye protection) group optical axis is generally divided into eccentric adjustment and tilt adjustments, the problems such as the device of its correspondence is respectively off-center adjustment apparatus and levelling device (inclination adjusting device), lower for traditional levelling device efficiency, cost is higher, error is larger.
The principle of a plane is determined according to 3, levelling gear generally adopts supported at three point leveling, 3 leveling not only can determine a plane, and can ensure that large photoelectric equipment has higher light path to aim at repeatability when working, supported at three point leveling is the most also most effective support leveling mode.Divide by supporting way, levelling gear can be divided into fluid pressure type and mechanical type, although the power exported in fluid pressure type leveling unit volume is larger, but it also exists some shortcomings, such as: hydraulic oil has compressibility, the coefficient of viscosity of hydraulic oil varies with temperature, hermetic devices exists leakage problem, hydraulic oil has combustibility, self can not realize mechanical interlocking etc., and mechanical type leveling environmental suitability comparatively strong, self-locking can be realized, therefore leveling mode of the present invention adopts the leveling of Three-point machine tool formula.Three-point machine tool formula levelling gear conventional in current engineering has three kinds: screw jack formula, shoe deformation formula, wedge type.
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of spiral accurate levelling gear for optical device, this is simple and reliable for structure, cost is low, precision and resolution is high, efficiency is high, error is little technical scheme, solves the problem such as precision, efficiency, cost of optoelectronic device levelling gear.
The technical scheme that technical solution problem of the present invention adopts is as follows:
For a spiral accurate levelling gear for optical device, this mechanism's circumference uniform distribution is on adjustment plate, and this levelling gear comprises: bearing, attaching nut, adjusting nut, the first spheric washer to, the second spheric washer to, set nut and coupling bolt; Coupling bolt successively through bearing, attaching nut, adjusting nut, the first spheric washer to, adjustment plate, the second spheric washer to and set nut; Bearing and the link of attaching nut's screw thread; Attaching nut and adjusting nut are threaded; Coupling bolt is threaded with attaching nut; The current position of adjustment plate is come, after adjustment, by set nut fixing and locking by the position adjusting adjusting nut.
The invention has the beneficial effects as follows: the present invention is according to 3 levelling principle, utilize the feature of fine thread fine setting and self-locking, anti-rotation, locking effect that left-right rotary threaded engagement uses, and the measurement of minute angle or micro-displacement is converted into the measurement to Large travel range, and leveling scheme meets abbe ' s principle, ensure that the precision of levelling gear.Levelling gear structure of the present invention is simple, efficiency is high, cost is low, error is little, more reliable and more stable.
Accompanying drawing explanation
A kind of spiral accurate levelling gear levelling principle figure for optical device of Fig. 1 the present invention
The cut-open view of a kind of spiral accurate levelling gear for optical device of Fig. 2 the present invention
In figure: 1, bearing, 2, attaching nut, 3, adjusting nut, the 4, first spheric washer pair, the 5, second spheric washer pair, 6, adjustment plate, 7, set nut and 8, coupling bolt.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details.
As shown in Figure 1, three groups of identical spiral levelling gears for optical device of structure are arranged in adjustment plate 6 edge on difference 3 1., 2., 3. (circumference 120 degree is uniform), secondary mirror or corrective lens (eye protection) group are arranged on the central authorities of adjustment plate 6, and it is coplanar with adjustment plate 6, by adjusting the height of adjusting nut 3 position in these three groups of levelling gears, efficiently, accurately can carry out leveling to secondary mirror or corrective lens (eye protection) group, and this leveling scheme meets abbe ' s principle, ensure that the precision of levelling gear.
As shown in Figure 1, this spiral accurate levelling gear circumference uniform distribution being used for optical device is at adjustment plate 6, and this levelling gear comprises: bearing 1, attaching nut 2, adjusting nut 3, first spheric washer to the 4, second spheric washer to 5, set nut 7 and coupling bolt 8; Coupling bolt 8 successively through bearing 1, attaching nut 2, adjusting nut 3, first spheric washer to 4, adjustment plate 6, second spheric washer is to 5 and set nut 7; Bearing 1 and the link of attaching nut 2 screw thread; Attaching nut 2 and adjusting nut 3 are threaded; Coupling bolt 8 is threaded with attaching nut 2; The position of adjustment plate 6 is come by the position adjusting adjusting nut 3.Bearing 1 is the larger closely-pitched V-thread of thread form angle with attaching nut 2, attaching nut 2 with the form of thread of adjusting nut 3, and it has fine adjustment function and self-locking property is better, improves precision and the reliability of levelling gear.In addition, the precision of levelling gear can be changed by the pitch changing attaching nut 2 and adjusting nut 3.
The imaging of optical system is observed by imaging CCD, calculate levelling gear 1. in (2., 3.) adjusting nut 3 need the displacement adjusted up or down, unclamp the set nut 7 in three groups of levelling gears, then adjusting nut 3 is turned counterclockwise or clockwise, now, corresponding point on adjustment plate 6 will move a segment distance along with adjusting nut 3, after adjusting nut 3 reaches target location, whether the imaging of observation optical system reaches leveling requirement, be, then tighten set nut 7, adjustment completes; No, calculate with regard to carrying out again, adjust and observe, until reach leveling requirement.In adjustment process, because the rotation direction be threaded of the rotation direction be threaded and the attaching nut 2 of bearing 1, attaching nut 2, adjusting nut 3 is contrary, such as bearing 1 with attaching nut 2 for left-hand thread (LHT) is connected; Attaching nut 2 with adjusting nut 3 for right-hand thread is connected; Coupling bolt 8 with attaching nut 2 for right-hand thread is connected.When turning adjusting nut 3 counterclockwise or clockwise, according to screw-driven principle, can effectively prevent attaching nut 2 and coupling bolt 8 from rotating, and the first spheric washer to 4 and second spheric washer can automatic adjusting positions to 5, make the parts contacted with it can adapt to adjustment and uniform force better, improve the serviceable life of levelling gear and the reliable and stable of levelling gear.
Claims (6)
1. the spiral accurate levelling gear for optical device, it is characterized in that, this mechanism's circumference uniform distribution is in adjustment plate (6), and this levelling gear comprises: bearing (1), attaching nut (2), adjusting nut (3), the first spheric washer to (4), the second spheric washer to (5), set nut (7) and coupling bolt (8); Described coupling bolt (8) passes bearing (1), attaching nut (2), adjusting nut (3), the first spheric washer to (4), adjustment plate (6), the second spheric washer successively to (5) and set nut (7); Bearing (1) and the link of attaching nut (2) screw thread; Attaching nut (2) and adjusting nut (3) are threaded; Coupling bolt (8) is threaded with attaching nut (2); The current position of adjustment plate (6) is come, after adjustment, by set nut (7) fixing and locking by the position of adjustment adjusting nut (3).
2. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterized in that, described first spheric washer is mating spherical surfaces to (4) and the second spheric washer to (5), carry out the pitch tilt of adjustment plate (6), make adjustment plate (6) uniform force.
3. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterized in that, the be threaded direction that to be threaded with attaching nut (2) and adjusting nut (3) of described bearing (1) and attaching nut (2) is contrary; Attaching nut (2) and adjusting nut (3) are threaded identical with the direction that is threaded of attaching nut (2) with coupling bolt (8).
4. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterized in that, screw thread, the attaching nut (2) of described bearing (1) and attaching nut (2) are closely-pitched V-thread with the screw thread of adjusting nut (3).
5. a kind of spiral accurate levelling gear for optical device according to claim 1, is characterized in that, the quantity that described levelling gear is distributed in adjustment plate (6) is three.
6. a kind of spiral accurate levelling gear for optical device according to claim 1, it is characterized in that, the described central authorities needing the mirror group of leveling to be arranged on adjustment plate (6), and coplanar with adjustment plate (6), the diameter of adjustment plate (6) is greater than or much larger than the diameter of mirror group.
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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN104656221A true CN104656221A (en) | 2015-05-27 |
| CN104656221B CN104656221B (en) | 2017-06-13 |
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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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Cited By (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 |
| 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 |
| CN110064970A (en) * | 2019-04-11 | 2019-07-30 | 复旦大学 | A kind of aligning and leveling mechanism for workpiece accurate measurement |
| 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 |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| GB2584540A (en) * | 2019-04-09 | 2020-12-09 | Bae Systems Plc | A mount |
| CN112108902A (en) * | 2020-08-31 | 2020-12-22 | 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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| 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
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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 |
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Cited By (14)
| 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 |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| GB2584540B (en) * | 2019-04-09 | 2022-07-13 | Bae Systems Plc | A mount |
| GB2584540A (en) * | 2019-04-09 | 2020-12-09 | Bae Systems Plc | A mount |
| US11821570B2 (en) | 2019-04-09 | 2023-11-21 | Bae Systems Plc | Mount for adjusting a mounting plane |
| 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 |
| CN112108902A (en) * | 2020-08-31 | 2020-12-22 | 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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| Publication number | Publication date |
|---|---|
| CN104656221B (en) | 2017-06-13 |
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