CN107329231A - Adjustable reflector Bipod flexible supporting structure, supporting device and adjusting method thereof - Google Patents
Adjustable reflector Bipod flexible supporting structure, supporting device and adjusting method thereof Download PDFInfo
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- CN107329231A CN107329231A CN201710630664.XA CN201710630664A CN107329231A CN 107329231 A CN107329231 A CN 107329231A CN 201710630664 A CN201710630664 A CN 201710630664A CN 107329231 A CN107329231 A CN 107329231A
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 17
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- 230000033228 biological regulation Effects 0.000 claims description 12
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- 230000005489 elastic deformation Effects 0.000 claims description 6
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- 238000013461 design Methods 0.000 description 10
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- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
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Classifications
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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
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/181—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
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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
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/47—Mountings or tracking
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Abstract
The invention belongs to the technical field of space optics, and particularly relates to an adjustable reflecting mirror Bipod flexible supporting structure, a supporting device and an assembling and adjusting method thereof. The adjustable reflecting mirror Bipod flexible supporting structure comprises two flexible rods with the tops connected and a bidirectional adjusting mechanism; the bidirectional adjusting mechanism comprises a fixed support and a bidirectional ball screw arranged on the fixed support, and two ends of the bidirectional ball screw are respectively provided with a screw joint; the bidirectional ball screw is provided with two sections of threads with the same pitch and opposite rotation directions, and when the bidirectional ball screw rotates, the two screw joints symmetrically move along the ball screw; the bottoms of the two flexible rods are respectively hinged with the two screw rod joints, and the two flexible rods can rotate around the top connecting point; the fixed support is also provided with a servo motor for driving the bidirectional ball screw to rotate and a potentiometer for recording and feeding back the rotation direction and angle of the bidirectional ball screw.
Description
Technical field
The invention belongs to space optics technical field, and in particular to a kind of adjustable speculum Bipod flexible support structures,
Support meanss and its Method of Adjustment.
Background technology
Speculum is as the core component of space camera, and its surface figure accuracy and positional precision directly influence optical system
Image quality.To reduce influence of the thermal stress of gluing stress and temperature change generation to reflecting mirror surface shape precision, speculum leads to
It is attached frequently with Bipod flexible support structures and main force support structure.During space camera equipment is debug, speculum with
Debuging for supporting construction is the important step for ensureing complete machine optical property.
2 months 2015, Zhang Limin of Changchun Institute of Optics, Fine Mechanics and Physics, CAS et al. was in paper
《Application of the Bipod flexible structures in small mirrors support》One kind is proposed in (optical precision engineering, the 2nd phase of volume 23)
The flexible support structure being made up of 3 groups of Bipod, the surface figure accuracy for improving the small mirrors under actual operating conditions.For
The influence that asymmetry is caused to speculum is avoided, the flexible support structure formed according to optical design requirements overall processing
The structure with preset parameter.
When on ground, progress camera is debug, due to the influence of gravity, speculum is debug with Bipod flexible support structures and need to adopted
Detected with optical axis horizontal mode.When optical axis level is debug, reflecting mirror surface shape precision is very sensitive to Support Position, to subtract
The tilting moment of speculum is, it is necessary to make Bipod flexible support structure flexible link intersection point shapes when small optical axis horizontal direction is detected, debug
Into face close to plane where speculum center of gravity, this is conducive to the surface figure accuracy and the inclination angle that control speculum.In addition, current space
The speculum of camera selects carbofrax material mostly, due to the superposition of each link mismachining tolerance in preparation process, although final
To speculum can reach optical design requirements, but all there is some difference for its profile and center of gravity and the speculum of design, if
Debug according to initial designs, the installation site of speculum and supporting construction will produce deviation.Using having for overall processing
Control can not be adjusted for actually debuging situation in the flexible support structure of preset parameter, in order to reach reflecting mirror surface shape precision
Design requirement, then supporting construction must be carried out reprocessabilty and debuging test, debug low precision and inefficiency.
The content of the invention
It is an object of the present invention to provide a kind of adjustable speculum Bipod flexible support structures, support meanss and its side of debuging
Method, solves the technical problem for debuging low precision and inefficiency that traditional reflecting mirror support structure is present.
The present invention technical solution be：A kind of adjustable speculum Bipod flexible support structures, including two tops
Connected flexible link, it is characterized in that：Also include bidirectional adjustment mechanism；
The bidirectional adjustment mechanism includes fixed support and the two-way ball-screw being installed on fixed support, two-way ball
The two ends of leading screw respectively set a leading screw joint；Two-way ball-screw has the identical but oppositely oriented screw thread of two sections of pitch, when
During two-way ball-screw rotation, two leading screw joints are symmetrically moved along ball-screw；The bottom of two flexible links respectively with two
Leading screw joint is hinged, and two flexible links can be rotated around top attachment points；
Servomotor for driving the rotation of two-way ball-screw is additionally provided with the fixed support and anti-for recording
Present the potentiometer of two-way ball-screw direction of rotation and angle.
Further, above-mentioned flexible link includes the soft section of a radial direction and tangential at radially soft symmetrically arranged two of section two ends
Soft section, the soft section of radial direction can along speculum radial direction elastic deformation, the tangential soft section can be along the tangent line side of speculum
To elastic deformation.
Further, the soft section of above-mentioned radial direction is connected by middle part contiguous block with one end of tangential soft section, the tangential soft section
The other end be provided with end portion connection block, taper roll bearing is installed in the end portion connection block.
Further, two line slideways parallel with two-way ball-screw are additionally provided with above-mentioned fixed support, it is described
Two-way ball-screw is located between two line slideways；Two sliding blocks, one of sliding block are provided with each line slideway
It is connected with a leading screw joint of two-way ball-screw, another leading screw joint phase of another sliding block and two-way ball-screw
Even；Connected as one positioned at two-way ball-screw with two sliding blocks and a leading screw joint of one end by support base, flexible link
Bottom be installed on by rotating shaft on the support base.
Further, it is additionally provided with above-mentioned fixed support in reduction box, the reduction box and is provided with worm and gear component,
Worm screw is connected by flexible clutch with servomotor, and worm gear is connected by flexible clutch with two-way ball-screw one end；Institute
Potentiometer is stated by flexible clutch with the other end of two-way ball-screw to be connected.
Further, the top of two flexible links is connected by a triangular support frame, the triangular support frame
Two base angles at the top of two flexible links respectively with being hinged.
Further, the section that above-mentioned triangular support frame is made up of three panels is the framework knot of equilateral triangle
At least two are provided with structure, each panel is used for the mounting hole of stationary mirror.
The present invention also provides a kind of support meanss based on above-mentioned adjustable speculum Bipod flexible support structures, its
It is characterized in that：Including three fixation inserts that axial symmetry is set on speculum side face, the bottom of each fixed inserts is equal
One adjustable speculum Bipod flexible support structure is installed；The fixed inserts and speculum, which are glued, to be fixed, fixed inserts with
Be spirally connected fixation at the top of flexible link in adjustable speculum Bipod flexible support structures；The center of three fixed inserts and reflection
The center of gravity of mirror is overlapped, optical axis of the plane perpendicular to speculum where the center of three fixed inserts.
Further, above-mentioned fixed inserts includes arc adhesive sheet and the triangle boss in the middle part of arc adhesive sheet；
The cambered surface radius of the arc adhesive sheet is identical with mirror wall radius, and the triangle boss insertion is located at the top of flexible link
Triangular support inframe and be spirally connected fixation by the mounting hole on triangular support frame panel.
The present invention also provides a kind of Method of Adjustment of support meanss as described above, and it is characterized in that, including following
Step：
1) position of centre of gravity of speculum is measured；
2) Central Symmetry position is bonded three fixed inserts, the center of three fixed inserts and reflection on speculum side face
The center of gravity of mirror is overlapped, optical axis of the plane perpendicular to speculum where the center of three fixed inserts；
3) position of three adjustable speculum Bipod flexible support structures is adjusted, makes each adjustable speculum Bipod
Flexible support structure and corresponding fixed inserts are spirally connected fixation according to regulation torque；
4) the flexible link movement in three adjustable speculum Bipod flexible support structures is controlled, reflecting mirror surface shape is adjusted
Precision, makes mirror mirror face shape reach design requirement.
The beneficial effects of the present invention are：
(1) easily regulation, convenient regulation maximum support position.There are two sections of positive and negative spiral shells at the two-way ball-screw two ends of the present invention
Line, is adjusted, it is ensured that speculum is not under conditions of extra-stress is produced along light simultaneously using three Bipod flexible support structures
Direction of principal axis translation, it is stable to adjust to the optimal position of surface figure accuracy.When the present invention is applied to secondary mirror support, protected available for regulation
Demonstrate,prove primary and secondary mirror spacing.
(2) precision is high, and stability is good.The present invention is oriented to using high-precision line slideway and the two-way ball-screw of high accuracy,
Using servomotor as driving, the size and Orientation of potentiometer feedback regulation amount makes the reflector position after regulation accurately fixed
Position；Carriage is connected with fixed inserts by equilateral triangle boss, while equilateral triangle boss increase coupling stiffness, is protected
Positioning precision is demonstrate,proved；In addition, worm and gear gear has the ability of self-locking, it is ensured that the stability of regulation rear support position.
Sliding block is slided by the form of dry friction on line slideway, with the characteristics of gap is small, precision is high, it is ensured that degree of regulation it is same
When, improve the rigidity of structure and reliability of the present invention.Taper roller ball bearing can bear axial and radial force, it is ensured that this hair
Bright debugs precision and stability.
(3) easily debug.The form that flexible link in the present invention is combined using radially soft section with tangential soft section, can not only inhale
Gluing stress is received, can also absorb ambient temperature change causes speculum and the thermal stress of the inconsistent introducing of main force support structure, enters
One step improves reflecting mirror surface shape precision.By determining fixed inserts and the relative position of speculum center of gravity, it can be ensured that adjustable
Bipod flexible support structures have the initial position of degree of precision, and that improves mirror assembly debugs efficiency.
(4) highly versatile, it is reusable.The present invention uses modularized design, can by changing flexible link and carriage
Other speculums are rapidly used for, design, the manufacturing cost and use cost of mirror support device is greatly reduced, improves speculum
Efficiency is debug with support meanss.
Brief description of the drawings
Fig. 1 is the overall structure diagram that the embodiment of the present invention one can adjust speculum Bipod flexible support structures.
Fig. 2 is the carriage structural representation that the embodiment of the present invention one can adjust speculum Bipod flexible support structures.
Fig. 3 is the flexible link structural representation that the embodiment of the present invention one can adjust speculum Bipod flexible support structures.
Fig. 4 shows for the bidirectional adjustment mechanism structure that the embodiment of the present invention one can adjust speculum Bipod flexible support structures
It is intended to.
Fig. 5 is the structural parameters schematic diagram that the embodiment of the present invention one can adjust speculum Bipod flexible support structures.
Fig. 6 is the A direction views of adjustable speculum Bipod flexible support structures in Fig. 5.
Fig. 7 is flexible link angle ψ and Δ ry that the embodiment of the present invention one can adjust speculum Bipod flexible supports relation
Figure.
Fig. 8 is the Principles of Regulation schematic diagram that the embodiment of the present invention one can adjust speculum Bipod flexible support structures.
Fig. 9 is the overall structure diagram of the support meanss of the embodiment of the present invention two.
Figure 10 is the fixation insert structure schematic diagram of the support meanss of the embodiment of the present invention two.
Figure 11 is the pass of regulated quantity of the support meanss of the embodiment of the present invention two under different operating modes and reflecting mirror surface shape precision
System's figure.
Wherein, reference is as follows：
1- triangular support frames, 11- panels, 12- flexible link mounting grooves, 13- rotary shafts, 2- flexible links, 21- is radially soft
Contiguous block in the middle part of section, the tangential soft sections of 22-, 23-, 24- end portion connection blocks, 3- bidirectional adjustment mechanisms, 31- fixed supports, 32- is two-way
Ball-screw, 33- leading screw joints, 34- servomotors, 35- reduction boxes, 36- potentiometers, 37- line slideways, 38- sliding blocks, 39-
Support base, 4- speculums, 5- fixes inserts, 51- arc adhesive sheets, 52- triangle boss, 53- lightening holes, the adjustable reflections of 6-
Mirror Bipod flexible support structures.
Embodiment
Embodiment one
Referring to Fig. 1, the present embodiment is a kind of adjustable speculum Bipod flexible support structures, including two flexible links 2,
The bottom of two flexible links 2 is arranged on bidirectional adjustment mechanism 3；The top of two flexible links 2 passes through the phase of triangular support frame 1
Even, top of two base angles of triangular support frame 1 respectively with two flexible links 2 is hinged.
Referring to Fig. 2, the section that the triangular support frame 1 in the present embodiment is made up of three panels 11 is equilateral triangle
Frame structure, two are provided with each panel 11 is used for the mounting hole of stationary mirror, two of triangular support frame 1
One flexible link mounting groove 12 is respectively set on base angle, rotary shaft 13 is provided with flexible link mounting groove 12, two flexible links 2 can be with
Rotated around rotary shaft 13.
Referring to Fig. 3, the flexible link 2 in the present embodiment includes the soft section 21 of a radial direction and symmetrically set at radially 21 two ends of soft section
The two tangential soft sections 22 put, two tangential soft sections 22 are coplanar and mutually orthogonal with radially soft section 21.Radially soft section 21 can be along anti-
Penetrate the radial direction elastic deformation of mirror, tangential soft section 22 can along speculum tangential direction elastic deformation, pass through the bullet of flexible link 2
Property deformation can offset the radial load and axial force suffered by adjustable speculum Bipod flexible support structures.Radially soft section 21 leads to
One end that middle part contiguous block 23 is crossed with tangential soft section 22 is connected, and the other end of tangential soft section 22 is provided with end portion connection block 24, holds
Taper roll bearing is installed in portion's contiguous block 24.Taper roll bearing is used in pairs can bear radial load simultaneously and axially carry
Lotus, it is ensured that the high accuracy rotation of flexible link 2.
Referring to Fig. 4, bidirectional adjustment mechanism 3 includes fixed support 31 and the two-way ball-screw being installed on fixed support 31
32, the two ends of two-way ball-screw 32 respectively set a leading screw joint 33.The two ends of two-way ball-screw 32 have symmetrical but rotation
To opposite screw thread, when two-way ball-screw 32 rotates, two leading screw joints 33 will produce centripetal symmetrically along ball-screw
Or the constant speed movement of vest.
Servomotor 34, the and of reduction box 35 for driving two-way ball-screw 32 to rotate are additionally provided with fixed support 31
Potentiometer 36 for recording the two-way ball-screw direction of rotation of feedback and angle.Worm and gear group is provided with reduction box 35
Part, worm screw is connected by flexible clutch with servomotor 34, and worm gear passes through flexible clutch and two-way one end of ball-screw 32
It is connected, potentiometer 36 is connected by flexible clutch with the other end of two-way ball-screw 32.
Two line slideways 37 parallel with two-way ball-screw 32, two-way ball-screw are additionally provided with fixed support 31
32 are located between two line slideways 37.Be provided with two sliding blocks 38 on each line slideway 37, one of sliding block with it is double
It is connected to a leading screw joint of ball-screw, another sliding block is connected with another leading screw joint of two-way ball-screw.Position
Connected as one in two-way ball-screw 32 with two sliding blocks 38 and a leading screw joint 33 of one end by support base 39, it is flexible
The bottom of bar is installed on support base 39 by taper roll bearing.The setting of two parallel lines guide rails can improve flexible link
Sliding stability.
Control circuit control servomotor 34 works, and after the rotation of servomotor is slowed down by reduction box 35, drives two-way
Ball-screw 32 is rotated, and the convert rotational motion of two-way ball-screw 32 is the linear motion of support base 39, two flexible links
Angle also changes therewith, and then the intersection point of two flexible links is moved along line of symmetry.
Adjustable speculum Bipod flexible support structures in the present embodiment can be reduced to two flexibilities in ψ angles
Coordinate system as shown in Figure 5 and Figure 6 is set up, wherein X-axis is in bar, the center using two flexible links top line as the origin of coordinates
Straight line at the top of two flexible links where line, Y-axis is the straight line where mirror optical axis, and Z axis is straight where speculum radius
Line.
Under the coordinate system, the flexibility matrix of adjustable speculum Bipod flexible support structures is：
Wherein, C36Represent moment MzIn the rotational angle θ of Z axisz, C46Represent moment MzIn the displacement δ of X-axisx.Pass through
Calculate δxWith θzRatio can obtain adjustable speculum Bipod flexible support structures in the instantaneous center of rotation of Y-axis, its position vector r
=(0, ry,0)。
Wherein l is soft section length, and t is soft section thickness, and w is soft byte wide, and d is the level between the top of two flexible links
Distance, the unit of each length distance is mm, if α=l/w, β=l/t.
Ideally, flexible link intersection point is that adjustable speculum Bipod flexible support structures are rotated in the name of Y-axis
Instantaneous, its position vector is：
R=(0 ,-dcot (ψ/2)/2,0)
Adjustable speculum Bipod flexible support structures are Δ in the instantaneous center of rotation of Y-axis and the difference of two flexible link intersection points
Ry, unit is mm.
As shown in fig. 7, being compared by calculating, when ψ ∈ (80 °, 120 °), -0.4mm≤Δ ry≤0mm can adjust reflection
The instantaneous center of rotation of mirror Bipod flexible support structures and the intersection point deviation of two flexible links are in allowed band, you can regulation speculum
The instantaneous center of rotation of Bipod flexible support structures can approximately be considered as the intersection point of two flexible links.The angle ψ of flexible link is adjusted, can make can
Adjust the instantaneous center of rotation (i.e. the intersection points of two flexible links) the rule movement within the specific limits of speculum Bipod flexible support structures.
Now, maximum support position can be searched out by adjusting bidirectional adjustment mechanism change instantaneous center of rotation position.
Referring to Fig. 8, the horizontal range in the present embodiment between the bottom of two flexible links is u (unit is mm), when control is double
When making flexible link bottom generation Δ u amount of movement to governor motion 3, the variable angle amount of two flexible links is Δ ψ, and now two is flexible
The intersection point of bar will move Δ h along mirror light direction of principal axis：
Embodiment two
Referring to Fig. 9, the present embodiment is a kind of support meanss based on adjustable speculum Bipod flexible support structures.Should
Support meanss include three fixation inserts 5 that Central Symmetry is set on the side face of speculum 4, the bottom of each fixed inserts 5
It is respectively mounted an adjustable speculum Bipod flexible support structure 6；Fixed inserts 5 is glued with speculum 4 to be fixed, fixed inserts 5
With the fixation that is spirally connected at the top of the flexible link in adjustable speculum Bipod flexible support structures 6；The center of three fixed inserts 5 with
The center of gravity of speculum 4 is overlapped, optical axis of the plane perpendicular to speculum 4 where the center of three fixed inserts 5.
Referring to Figure 10, fixed inserts 5 includes arc adhesive sheet 51 and the triangle boss positioned at the middle part of arc adhesive sheet 51
52；The cambered surface radius of arc adhesive sheet 51 is identical with the radius of speculum 4, and the insertion of triangle boss 52 is located at the top of flexible link
Triangular support inframe is simultaneously spirally connected fixation by the mounting hole on triangular support frame panel.The center of triangle boss 52 is also set
Lightening hole 53 is equipped with, support meanss are reduced as far as possible on the premise of being stably connected with of fixed inserts and triangular support frame is ensured
Overall weight.Fixation inserts 5 in the present embodiment can select invar material, reduce because supporting shape caused by temperature change
Become.
, can be according to interferometer feedback to adjustable when being debug using the present embodiment support meanss to speculum progress ground
Speculum Bipod flexible support structures are adjusted in real time, adjustable speculum Bipod flexible support structures is in optimal branch
Support state, so as to obtain optimal reflecting mirror surface shape precision.
Specific Method of Adjustment comprises the following steps：
1) position of centre of gravity of speculum is measured；
2) axisymmetric position is bonded three fixed inserts, the center of three fixed inserts and speculum on speculum side face
Center of gravity overlap, the optical axis of the center place planes of three fixed inserts perpendicular to speculum；
3) position of three adjustable speculum Bipod flexible support structures is adjusted, makes each adjustable speculum Bipod
Flexible support structure and corresponding fixed inserts are spirally connected fixation according to regulation torque, reduce as far as possible and debug stress.
4) fed back according to interferometer, the flexible link movement in three adjustable speculum Bipod flexible support structures of control,
Reflecting mirror surface shape precision is adjusted, mirror mirror face shape is reached design requirement.
As shown in figure 11, when speculum center of gravity and flexible support flexible link line intersection point deviation ε ∈ { -2, -1,0,1,2 } mm
When, the face shape essence of speculum can be made by the amount of movement of flexible link in the adjustable speculum Bipod flexible support structures of control
Spend RMS and be less than 10nm.
Ground is debug after end, can ensure that reflector position is fixed by the self-locking performance of worm and gear.It is anti-for heavy caliber
Mirror is penetrated, retaining mechanism can also be increased in the support meanss of the present invention, or according to the data of debuging of the present invention, redesign
Non-adjustable support meanss, can equally save and manufacture and design launch cost.
When the support meanss and method of the present invention are applied to the installation support of secondary mirror, the adjustable speculum of control can be passed through
Bipod flexible support structures change position of the secondary mirror along optical axis direction, it is ensured that the spacing between primary mirror and secondary mirror.Due to space phase
Machine is in the working environment of vacuum, and its carbon fiber connection member vacuum deflation often occurs, causes the primary and secondary mirror spacing of camera to occur
Deviation.Equal amount is fed by adjustable speculum Bipod flexible support structures, secondary mirror can be made to be translated along optical axis direction, and then
Primary and secondary mirror spacing is set to return to target location.
Claims (10)
1. a kind of adjustable speculum Bipod flexible support structures, including the connected flexible link in two tops, it is characterised in that：
Also include bidirectional adjustment mechanism；
The bidirectional adjustment mechanism includes fixed support and the two-way ball-screw being installed on fixed support, two-way ball-screw
Two ends respectively set a leading screw joint；Two-way ball-screw has the identical but oppositely oriented screw thread of two sections of pitch, when two-way
When ball-screw rotates, two leading screw joints are symmetrically moved along ball-screw；The bottom of two flexible links respectively with two leading screws
Joint is hinged, and two flexible links can be rotated around top attachment points；
The servomotor for driving two-way ball-screw rotation is additionally provided with the fixed support and feeds back double for recording
To ball-screw direction of rotation and the potentiometer of angle.
2. adjustable speculum Bipod flexible support structures according to claim 1, it is characterised in that：The flexible link
Including the soft section of a radial direction and in the radially soft tangential soft section in symmetrically arranged two of section two ends, the soft section of radial direction can be along speculum
Radial direction elastic deformation, the tangential soft section can along speculum tangential direction elastic deformation.
3. adjustable speculum Bipod flexible support structures according to claim 2, it is characterised in that：The radial direction is soft
Section is connected by middle part contiguous block with one end of tangential soft section, and the other end of the tangential soft section is provided with end portion connection block, institute
State and taper roll bearing is installed in end portion connection block.
4. adjustable speculum Bipod flexible support structures according to claim 1, it is characterised in that：The fixed branch
Two line slideways parallel with two-way ball-screw are additionally provided with frame, the two-way ball-screw is located at two line slideways
Between；Two sliding blocks, a leading screw joint of one of sliding block and two-way ball-screw are provided with each line slideway
It is connected, another sliding block is connected with another leading screw joint of two-way ball-screw；Positioned at two-way ball-screw with the two of one end
Individual sliding block and a leading screw joint are connected as one by support base, and the bottom of flexible link is installed on the support base by rotating shaft
On.
5. adjustable speculum Bipod flexible support structures according to claim 4, it is characterised in that：The fixed branch
It is additionally provided with frame in reduction box, the reduction box and is provided with worm and gear component, worm screw passes through flexible clutch and servo electricity
Machine is connected, and worm gear is connected by flexible clutch with two-way ball-screw one end；The potentiometer by flexible clutch with it is double
It is connected to the other end of ball-screw.
6. according to any described adjustable speculum Bipod flexible support structures in claim 1-5, it is characterised in that：Two
The top of individual flexible link is connected by a triangular support frame, and two base angles of the triangular support frame are soft with two respectively
It is hinged at the top of property bar.
7. adjustable speculum Bipod flexible support structures according to claim 6, it is characterised in that：The triangle
The section that carriage is made up of three panels is to be provided with least two on the frame structure of equilateral triangle, each panel
Mounting hole for stationary mirror.
8. the support meanss of any described adjustable speculum Bipod flexible support structures in a kind of 1-7 based on claim,
It is characterized in that：Including three fixation inserts that axial symmetry is set on speculum side face, the bottom of each fixed inserts is pacified
Fill an adjustable speculum Bipod flexible support structure；The fixed inserts and speculum, which are glued, to be fixed, fixed inserts with can
Be spirally connected fixation at the top of flexible link in regulation speculum Bipod flexible support structures；The center of three fixed inserts and speculum
Center of gravity overlap, the optical axis of the center place planes of three fixed inserts perpendicular to speculum.
9. support meanss according to claim 8, it is characterised in that：The fixed inserts includes arc adhesive sheet and is located at
Triangle boss in the middle part of arc adhesive sheet；The cambered surface radius of the arc adhesive sheet is identical with mirror wall radius, described
Triangle boss insertion is located at the triangular support inframe at the top of flexible link and passes through the mounting hole on triangular support frame panel
Be spirally connected fixation.
10. a kind of Method of Adjustment of support meanss as claimed in claim 8 or 9, it is characterised in that comprise the following steps：
1) position of centre of gravity of speculum is measured；
2) Central Symmetry position is bonded three fixed inserts on speculum side face, the centers of three fixed inserts and speculum
Center of gravity is overlapped, optical axis of the plane perpendicular to speculum where the center of three fixed inserts；
3) position of three adjustable speculum Bipod flexible support structures is adjusted, makes each adjustable speculum Bipod flexible
Supporting construction and corresponding fixed inserts are spirally connected fixation according to regulation torque；
4) the flexible link movement in three adjustable speculum Bipod flexible support structures is controlled, reflecting mirror surface shape precision is adjusted.
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