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CN103576283B - Based on the quick reflex mirror system of sinking support - Google Patents

Based on the quick reflex mirror system of sinking support Download PDF

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Publication number
CN103576283B
CN103576283B CN201310557481.1A CN201310557481A CN103576283B CN 103576283 B CN103576283 B CN 103576283B CN 201310557481 A CN201310557481 A CN 201310557481A CN 103576283 B CN103576283 B CN 103576283B
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China
Prior art keywords
flexible
picture frame
sinking support
mounting base
driven unit
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Expired - Fee Related
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CN201310557481.1A
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Chinese (zh)
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CN103576283A (en
Inventor
汪宝旭
朱明智
陈晓娟
王美聪
阙兴华
陈刚
黄湛
吴文凯
徐元利
傅学农
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General Engineering Research Institute China Academy of Engineering Physics
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General Engineering Research Institute China Academy of Engineering Physics
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Priority to CN201310557481.1A priority Critical patent/CN103576283B/en
Publication of CN103576283A publication Critical patent/CN103576283A/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides a kind of quick reflex mirror system based on sinking support, the mirror assembly in described quick reflex mirror system comprises catoptron, bond pad, flexible picture frame; Driven unit comprises and flexibly connects head, voice coil motor; Sensor module comprises displacement transducer, sleeve and set nut.Sinking support in the present invention can for mirror assembly provide supporting and around X-axis, Y-axis bidimensional rotary freedom and limit the degree of freedom in other directions, and there is large angular pivotal range; Flexible picture frame can reduce the impact on mirror surface type and position such as temperature, vibration; Adopt three driven unit interlocks to regulate, add symmetry and the stability of structure; Driven unit and the symmetrical alternative arrangement of sensor module, reduce system architecture size; Flexibly connect the small deviator that head can compensate drive displacement; Voice coil motor can ensure that catoptron has larger angular setting scope; Displacement transducer is measured to improve angular setting precision to mirror corners in real time.

Description

Based on the quick reflex mirror system of sinking support
Technical field
The invention belongs to precision optics Design of Mechanical Structure technical field, be specifically related to a kind of quick reflex mirror system based on sinking support, can be used for the rapid adjustment realizing catoptron " deflection-tilt " orientation angles.
Background technology
Fast mirror (FastSteeringMirror, FSM) is a kind of technological means for precision tracking that developed recently gets up, in order to control to launch and accept the direction of optical axis and correct the change of beam-pointing.Fast mirror works in light source or between receiver and target, is the vitals of adjustment and the stabilized optical system optical axis or beam-pointing.Domestic and international relevant unit is all devoted to fast mirror systematic research, and has been successfully applied to the fields such as astronomical telescope, adaptive optics, laser space communication and laser weapon.
At present, the version of fast mirror be mainly divided into have axle system and shaftless be two kinds of versions.Wherein, replace traditional physical construction without shafting structure because adopting flexible structure, have volume little, without plurality of advantages such as friction and gap, highly sensitive, reproducible and stable movement, therefore more and more by quick reflex mirror system is adopted.The structure of shaftless system quick reflex mirror system mainly comprises: the devices such as mounting base, catoptron and mounting structure thereof, driver, sensor and sinking support.Sinking support is the critical component in quick reflex mirror system, play supporting catoptron and mounting structure thereof, and along all directions rigidity of moving, the vital role of reasonable distribution is carried out to catoptron, therefore, design sinking support is a kind of key job of fast mirror systematic study.
Summary of the invention
The object of this invention is to provide a kind of quick reflex mirror system based on sinking support.
The scheme that the present invention solves the problems of the technologies described above is:
Quick reflex mirror system based on sinking support of the present invention, is characterized in, described quick reflex mirror system contains mirror assembly, sinking support, driven unit, sensor module and mounting base; Wherein, described mirror assembly comprises catoptron, bond pad, flexible picture frame; Described sinking support, comprises center fixed leg, rectangular flexible sheet and flexible outer shroud; Described driven unit comprises and flexibly connects head, voice coil motor; Described sensor module comprises displacement transducer, sleeve, set nut; Catoptron in described mirror assembly is rounded, picture frame is annular, and described sinking support, driven unit are circle; Described mounting base profile is equilateral triangle, and its annexation is, described mounting base is provided with the connecting hole of voice coil motor and the boss for sensor installation assembly; Sensor module is arranged on boss corresponding to mounting base; Voice coil motor in driven unit is fixed on mounting base by connecting hole; Mirror assembly by flexible picture frame with flexibly connect head and be connected; Catoptron is fixed in flexible picture frame by bond pad; Sinking support is connected with flexible picture frame, mounting base respectively; The central axis of sinking support and the dead in line of flexible picture frame.
The inner periphery of the flexible picture frame in described mirror assembly is evenly equipped with the circular arc flexible sheets that structure is identical, described circular arc flexible sheets is provided with the threaded hole for installing described bond pad, bond pad is bonded on the external cylindrical surface of catoptron, described catoptron is fixed on flexible picture frame by bond pad, the excircle of described flexible picture frame is evenly equipped with the lug for installing described driven unit that three structures are identical; Mirror assembly is connected with the head that flexibly connects of driven unit by lug.
Described center fixed leg is arranged on the center of sinking support, rectangular flexible sheet by four measure-alike and centrally fixed leg axisymmetrical arrange rectangular flexible Slab element form, limit the one-movement-freedom-degree of sinking support along X, Y-axis and the rotational freedom around Z axis; Described flexible outer shroud is made up of pressed on ring, middle ring, lower ring, limits the one-movement-freedom-degree of sinking support along Z axis; Pressed on ring and flexible picture frame connect to drive mirror assembly to do corresponding motion; Described center fixed leg, lower ring are connected with mounting base respectively and support with fixing flexible; Be processed with centrally fixed leg axisymmetrical in described middle ring to arrange and the first flexible board unit consistent with rectangular flexible sheet orientation and the second flexible board unit, wherein, the first flexible board unit is connected with described pressed on ring, and the second flexible board unit is connected with lower ring; Described rectangular flexible sheet, the first flexible board unit and the second flexible board unit co-operation, realize the supporting of mirror assembly and provide the rotational freedom of X, Y-direction and limit the degree of freedom in other directions, and can provide larger angle range.
The head that flexibly connects in described driven unit is connected with the lug on flexible picture frame, voice coil motor respectively as transition piece; Described voice coil motor to be fixed on mounting base three to be fixed uniform mounting hole.
Displacement transducer in described sensor module loads in sleeve hole, external cylindrical surface is arranged threaded sleeve and to be respectively charged on mounting base in three corresponding boss threaded holes, lock respectively by set nut.
Thermal characteristics and the catoptron of bond pad material match, with reduce lens deformation that temperature variation causes and heat should, and six flexible sheets in flexible picture frame radially can produce certain elastic deformation with the change of the surface deformation reducing the factor such as temperature variation, vibration further and cause and reflector position.
Particularly, the dead in line of arbitrary lug cylinder in the central plane of the first flexible board unit described in sinking support and flexible picture frame.
Finally, whole quick reflex mirror system of the present invention is fixed on external unit by the threaded hole on mounting base bottom surface.
Principle of the present invention is: the sinking support in the present invention can provide X to limit the degree of freedom in other directions to the rotary freedom with Y-direction; Voice coil motor in actuator assembly receives the drive singal from control system, produce displacement of the lines, and drive the lug of flexible picture frame to produce corresponding displacement of the lines by flexibly connecting head, thus make mirror assembly produce the change of corresponding dimensional orientation angle with the rotating angle movement driving catoptron to complete regulation; Flexibly connect head as the flexible transition part between voice coil motor and flexible picture frame, only limit the degree of freedom along its axis direction and keep the flexibility in other directions to compensate micro-displacement deviator on driving direction to avoid occurring " stuck " phenomenon; Sensor module detects to the displacement of each measurement point in flexible picture frame back, thus measure in real time the angle variable quantity of mirror assembly reality and feed back to control system, thus the output displacement of voice coil motor is corrected to the precision that ensures that mirror angle adjusts.
Feature of the present invention is:
(1) according to the adjustment requirement of the bidimensional orientation angles of catoptron in quick reflex mirror system, a kind of flexible supporting structure is set and can be used in quick reflex mirror system, and devise corresponding quick reflex mirror system based on this sinking support.
(2) sinking support in the present invention, formed by rectangular flexible Slab element topology, can provide supporting for mirror assembly and limit the degree of freedom in other directions around X-axis and Y-axis bidimensional rotary freedom, the degree of freedom that can meet quick reflex mirror system requires and has larger angular setting scope.
(3) bond pad adopting material thermal characteristics and catoptron to match, as transition piece, can reduce the mirror surface type that temperature variation brings and change and thermal stress
(4) catoptron adopts flexible installing mode can weaken the impact of the factor such as temperature variation, vibration on mirror surface type and position further.
(5) mode that the driven unit interlock that employing three is identical regulates, improves the overall structural stiffness of quick reflex mirror system, adds symmetry and the stability of structure, be conducive to improving rotation precision.
(6) driven unit and sensor module are along catoptron axisymmetrical alternative arrangement, reduce the general structure size of quick reflex mirror system.
(7) adopt and flexibly connect head and connect flexible picture frame and voice coil motor, the small deviator of drive displacement can be compensated and prevent " stuck " phenomenon from occurring.
(8) have employed voice coil motor to drive, catoptron can be made to have larger angular setting scope, and adopt displacement transducer to measure in real time and FEEDBACK CONTROL, the angular setting precision of catoptron can be improved.
Accompanying drawing explanation
Fig. 1 is the fast mirror system global structure schematic diagram in the present invention;
Fig. 2 is the structural representation after the quick reflex mirror system removal catoptron in the present invention;
Fig. 3 is the structural representation after the quick reflex mirror system removal mirror assembly in the present invention;
Fig. 4 is the structural representation of the mirror assembly in the present invention;
Fig. 5 is the structural representation of the flexible picture frame in the present invention;
Fig. 6 is the general structure schematic diagram of the sinking support in the present invention;
Fig. 7 is the outer ring structure schematic diagram of the sinking support in the present invention;
Fig. 8 is the structural representation of the driven unit in the present invention;
Fig. 9 is the structural representation of the sensor module in the present invention;
Figure 10 is the structural representation of the mounting base in the present invention.
In figure, 1. in the flexible outer shroud 24. pressed on ring 25. first flexible board unit 26. second flexible board unit 27. of mirror assembly 2. sinking support 3. driven unit 4. sensor module 5. mounting base 11. catoptron 12. bond pad 13. flexible picture frame 14. circular arc flexible sheets 15. lug 21. center fixed leg 22. rectangular flexible sheet 23., ring 28. times rings 31. flexibly connect 32. voice coil motor 41. displacement transducer 42. sleeve 43. set nut 51. mounting hole 52. boss.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1
Fig. 1 is the fast mirror system global structure schematic diagram in the present invention, Fig. 2 is the structural representation after the quick reflex mirror system removal catoptron in the present invention, Fig. 3 is the structural representation after the quick reflex mirror system removal mirror assembly in the present invention, Fig. 4 is the structural representation of the mirror assembly in the present invention, Fig. 5 is the structural representation of the flexible picture frame in the present invention, Fig. 6 is the general structure schematic diagram of the sinking support in the present invention, Fig. 7 is the outer ring structure schematic diagram of the sinking support in the present invention, Fig. 8 is the structural representation of the driven unit in the present invention, Fig. 9 is the structural representation of the sensor module in the present invention, Figure 10 is the structural representation of the mounting base in the present invention.In Fig. 1 ~ Figure 10, the quick reflex mirror system based on sinking support of the present invention, containing mirror assembly 1, sinking support 2, driven unit 3, sensor module 4 and mounting base 5; Wherein, described mirror assembly 1 comprises catoptron 11, bond pad 12, flexible picture frame 13; Described sinking support 2, comprises center fixed leg 21, rectangular flexible sheet 22 and flexible outer shroud 23; Described driven unit 3 comprise flexibly connect 31, voice coil motor 32; Described sensor module 4 comprises displacement transducer 41, sleeve 42, set nut 43; Catoptron 11 in described mirror assembly 1 is rounded, picture frame 13 is annular, and described sinking support 2, driven unit 3 are circle; Described mounting base 5 profile is equilateral triangle; Its annexation is, described mounting base 5 is provided with the connecting hole of voice coil motor 32, boss 52 for sensor installation assembly 4; Sensor module 4 is arranged on the boss 52 of mounting base 5 correspondence; Voice coil motor 32 in driven unit 3 is fixed on mounting base 5 by connecting hole; Mirror assembly 1 by flexible picture frame 13 with flexibly connect 31 and be connected; Catoptron 11 is fixed in flexible picture frame 13 by bond pad 12; Sinking support 2 is connected with flexible picture frame 13, mounting base 5 respectively; The central axis of sinking support 2 and the dead in line of flexible picture frame 13.
The inner periphery of the flexible picture frame 13 in described mirror assembly 1 is evenly equipped with the circular arc flexible sheets 14 that structure is identical, described circular arc flexible sheets 14 is provided with the threaded hole for installing described bond pad 12, bond pad 12 is bonded on the external cylindrical surface of catoptron 11, described catoptron 11 is fixed on flexible picture frame 13 by bond pad 12, the excircle of described flexible picture frame 13 is evenly equipped with the lug 15 for installing described driven unit 3 that three structures are identical; Mirror assembly 1 31 to be connected by flexibly connecting of lug 15 and driven unit 3.As shown in Figure 4,5.
Described center fixed leg 21 is arranged on the center of sinking support 2, rectangular flexible sheet 22 by four measure-alike and centrally fixed leg 21 axisymmetrical arrange rectangular flexible Slab element form, limit the one-movement-freedom-degree of sinking support 2 along X, Y-axis and the rotational freedom around Z axis; Described flexible outer shroud 23 is made up of pressed on ring 24, middle ring 27, lower ring 28, limits the one-movement-freedom-degree of sinking support 2 along Z axis; Pressed on ring 24 and flexible picture frame 13 connect to drive mirror assembly 1 to do corresponding motion; Described center fixed leg 21, lower ring 28 are connected with mounting base 5 respectively and support 2 with fixing flexible; Be processed with centrally fixed leg 21 axisymmetrical in described middle ring 27 to arrange and first flexible board unit 25 and the second flexible board unit 26 consistent with rectangular flexible sheet 22 orientation, wherein, first flexible board unit 25 is connected with described pressed on ring 24, and the second flexible board unit 26 is connected with lower ring 28; Described rectangular flexible sheet 22, first flexible board unit 25 and the second flexible board unit 26 co-operation, realize the supporting of mirror assembly 1 and provide the rotational freedom of X, Y-direction and limit the degree of freedom in other directions, and can provide larger angle range.As shown in Figure 6,7.
Flexibly connecting in described driven unit 3 31 is connected with the lug 15 on flexible picture frame 13, voice coil motor 32 respectively as transition piece; Described voice coil motor 32 to be fixed on mounting base 5 three to be fixed uniform mounting hole 51.As shown in Figure 8.
Displacement transducer 41 in described sensor module 4 loads in sleeve 42 hole, external cylindrical surface is arranged threaded sleeve 42 and to be respectively charged on mounting base 5 in three corresponding boss 52 threaded holes, and lock respectively by set nut 43.As shown in Figure 9.
Fast mirror system perspective adjustment process based on sinking support of the present invention is as follows:
Voice coil motor 32 in actuator assembly 3 receives the drive singal from control system, produce displacement of the lines, and produce corresponding displacement of the lines by flexibly connecting a lug 15 for the flexible picture frame 13 of 31 drive, thus make mirror assembly 1 produce the change of corresponding dimensional orientation angle with the rotating angle movement driving catoptron 11 to complete regulation; Flexibly connect 31 as the flexible transition part between voice coil motor 32 and flexible picture frame 13, only limit the degree of freedom along its axis direction and keep the flexibility in other directions to compensate micro-displacement deviator on driving direction to avoid occurring " stuck " phenomenon; Sensor module 4 detects to the displacement of each measurement point in flexible picture frame 12 back, thus measure the angle variable quantity of mirror assembly 1 reality in real time and feed back to control system, thus the precision ensureing catoptron 11 angular setting is corrected to the output displacement of voice coil motor 32.

Claims (4)

1. based on a quick reflex mirror system for sinking support, it is characterized in that: described quick reflex mirror system contains mirror assembly (1), sinking support (2), driven unit (3), sensor module (4) and mounting base (5); Wherein, described mirror assembly (1) comprises catoptron (11), bond pad (12), flexible picture frame (13); Described sinking support (2), comprises center fixed leg (21), rectangular flexible sheet (22) and flexible outer shroud (23); Described driven unit (3) comprises and flexibly connects head (31), voice coil motor (32); Described sensor module (4) comprises displacement transducer (41), sleeve (42), set nut (43); Catoptron (11) in described mirror assembly (1) is rounded, picture frame (13) in annular, described sinking support (2), driven unit (3) are circle, and mounting base (5) profile is equilateral triangle; Its annexation is, described mounting base (5) is provided with the connecting hole of voice coil motor (32) and the boss (52) for sensor installation assembly (4); Sensor module (4) is arranged on boss (52) corresponding to mounting base (5); Voice coil motor (32) in driven unit (3) is fixed on mounting base (5) by connecting hole; Mirror assembly (1) by flexible picture frame (13) with flexibly connect head (31) and be connected; Catoptron (11) is fixed in flexible picture frame (13) by bond pad (12); Sinking support (2) is connected with flexible picture frame (13), mounting base (5) respectively; The central axis of sinking support (2) and the dead in line of flexible picture frame (13);
Described center fixed leg (21) is arranged on the center of sinking support (2), rectangular flexible sheet (22) by four measure-alike and centrally fixed leg (21) axisymmetrical arrange rectangular flexible Slab element form; Described flexible outer shroud (23) is made up of pressed on ring (24), middle ring (27), lower ring (28); Pressed on ring (24) is connected to drive mirror assembly (1) to do corresponding motion with flexible picture frame (13); Described center fixed leg (21), lower ring (28) are connected with mounting base (5) respectively supports (2) with fixing flexible; Be processed with centrally fixed leg (21) axisymmetrical in described middle ring (27) to arrange and the first flexible board unit (25) consistent with rectangular flexible sheet (22) orientation and the second flexible board unit (26), wherein, first flexible board unit (25) is connected with described pressed on ring (24), and the second flexible board unit (26) is connected with lower ring (28).
2. quick reflex mirror system according to claim 1, it is characterized in that: the catoptron (11) in described mirror assembly (1) is fixed on flexible picture frame (13) by bond pad (12), the excircle of described flexible picture frame (13) being evenly equipped with the lug (15) for installing driven unit (3) that three structures are identical; Mirror assembly (1) is connected with the head (31) that flexibly connects of driven unit (3) by lug (15).
3. quick reflex mirror system according to claim 1, is characterized in that: be connected with the lug (15) on flexible picture frame (13), voice coil motor (32) respectively as flexibly connecting head (31) described in transition piece.
4. quick reflex mirror system according to claim 1, it is characterized in that: the displacement transducer (41) in described sensor module (4) loads in sleeve (42) hole, external cylindrical surface is arranged threaded sleeve (42) to be respectively charged in upper three corresponding boss (52) threaded holes of mounting base (5), and lock respectively by set nut (43).
CN201310557481.1A 2013-12-04 2013-12-04 Based on the quick reflex mirror system of sinking support Expired - Fee Related CN103576283B (en)

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