CN106517760B - Segmented mirror excision forming Auxiliary support fixture - Google Patents
Segmented mirror excision forming Auxiliary support fixture Download PDFInfo
- Publication number
- CN106517760B CN106517760B CN201610991992.8A CN201610991992A CN106517760B CN 106517760 B CN106517760 B CN 106517760B CN 201610991992 A CN201610991992 A CN 201610991992A CN 106517760 B CN106517760 B CN 106517760B
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- Prior art keywords
- support
- sucker
- support base
- hole
- base
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
Abstract
The invention discloses a kind of segmented mirror excision forming Auxiliary support fixtures, are concentrated with reducing the stress of overlap end, and overlap end is avoided irregular fracture in advance occur.This fixture mainly by support holder assembly and is placed on its inner support Suction cup assembly and forms.The top of support sucker is divided into vacuum chuck structure, and lower part uses chondritic, and the cylindrical hole of suction cup main body and support base is supported to be gap-matched.Biggish suction can be generated when support sucker work, since suction cup main body can support sucker that can adaptively be adsorbed onto the different surface of segmented mirror overlap curvature in the cylindrical hole of support base freely along the axial movement and swing in hole.Support base Internal Hole Deformation clamping brace sucker, fixed support sucker height are made by lock bolt handle at this time.The fixture can be adjusted to appropriate bearing height very accurately, will not generate extra binding to overlap, and the stress for greatly reducing both overlap end is concentrated, and guarantees going on smoothly for overlap cutting processing process.
Description
Technical field
The invention belongs to mirror finish auxiliary tool technology fields, and in particular to a kind of to cut overlap for segmented mirror
Auxiliary support fixture.
Background technique
As the bore of telescope is increasing, the design of telescope, processing, cost problem are also more and more prominent.In order to
Design and processing difficulties are reduced, mitigate the weight and cost of telescope, more and more large aperture telescope-KECK,
LAMOST, TMT etc. divide splicing using mirror surface.Heavy caliber astronomical optical telescope mainly uses muti-piece hexagon at present
Mirror mode is spliced into one piece of high-aperture optical mirror surface, and it is unwanted by the cylindrical sub- mirror mirror base excision of splicing for splicing sub- mirror
Overlap is process.The processing method for splicing sub- mirror excision overlap mainly uses following several method:
1. gradually filing.The method is not necessarily to overlap Auxiliary support fixture, is directly using the main support fixture of segmented mirror
It can.But the method, because being overlap by sub- mirror is spliced grinding away slowly, quite time-consuming, grinding knife tool loss is very big, adds
Work cost is big, and a large amount of powder that the method generates can pollute entire working environment, further increase difficulty of processing.
2. water jet patterning method.The method is short compared with gradually filing process time, high production efficiency, using water knife without mill
Damage, without cutter arrangement or replacement mechanism.But use the cut surface of the method that there is certain gradient, with vertical incision
There is certain inclination angle in direction, and it is lower to cut surface roughness, precision, it is also necessary to further finishing.In addition, with abrasive material
The sputtering of water can optical surface to segmented mirror and structural plane also can all have certain abrasion.
3. directly patterning method.The method is by the directly cutting removal of the entire part of overlap, and process time is short, grinding knife tool
Loss is few, and processing cost is low, and can only generate a small amount of powder, low to contamination.But segmented mirror is using crisp
Property material, when cutting to overlap end, since the gravity of entire overlap is concentrated in the end of overlap and is cut power
It influences, the end of overlap can generate irregular fracture, directly result in the failure of processing and splicing mirror surface, thus need to design overlap
Auxiliary support fixture provides holding power to overlap, is concentrated with reducing the stress of overlap end.Currently, relevant mirror surface flies not yet
Side Auxiliary support fixture can preferably solve problem above, this very big application and popularization for affecting directly patterning method.
Summary of the invention
It is concentrated to reduce the stress of overlap end as far as possible, avoids overlap end from irregular fracture in advance occur, fill up
For the blank for the Auxiliary support fixture that mirror surface overlap is directly cut, the present invention provides a kind of segmented mirror excision formings with auxiliary
Support fixture is helped, is specifically adopted the following technical scheme that
A kind of segmented mirror excision forming Auxiliary support fixture, including support holder assembly and be placed in support holder assembly
Support Suction cup assembly,
Supporting holder assembly includes support base and locking device；Support base is equipped with sucker hole, and the sucker hole is for putting
Support Suction cup assembly is set, the size and support Suction cup assembly in sucker hole are adapted；Sucker hole with support base plane parallel
Direction (i.e. the direction perpendicular with the axial direction in sucker hole) on it is non-closed, from the non-closed one end in sucker hole to support base
Edge be equipped with a gap, the gap along the direction (i.e. the axial direction in sucker hole) perpendicular with support base plane up and down
Perforation, is divided into part I and part ii for support base, and locking device is equipped on the divided part I and part ii,
Part I and part ii are squeezed mutually by locking device, are squeezed and deformed so as to cause sucker hole to axle center, are finally played fixation
Support the effect of Suction cup assembly.
Supporting Suction cup assembly includes support sucker and sucker base；Between the sucker hole of support Suction cup assembly and support base is
Gap cooperation, sucker base can be inside the sucker holes of support base freely along the direction perpendicular with support base plane
(i.e. the axial direction in sucker hole) is mobile and swings.
Further, the sucker hole of support base is preferably arranged to cylindrical hole, makes it can be with the sucker bottom of chondritic
Seat clearance fit.
Further, sucker base is preferably chondritic, so as to preferably adapt to splice sub- mirror any direction curved surface
Structure, preferably absorption fitting support mirror surface；Support sucker can be integrally formed with sucker base, be gone again after can also processing respectively
Assembly.
Further, locking device includes clamping screw, locking screw pit and locking unthreaded hole；Unthreaded hole is locked from support base
The lateral surface of part I extends to the another side of the part I of support base along the direction perpendicular to gap；Locking screw pit with
It is coaxial to lock unthreaded hole, and is laterally extended within from the part ii of support base close to the one of gap, which is preferably 15
To 20mm；In use, clamping screw is screwed in locking screw holes, to exert a force to the part I of support base by adjusting screw thread pair,
Achieve the effect that be squeezed and deformed part I and part ii mutually, to make the sucker for supporting Suction cup assembly to be anchored on support base
Kong Zhong.
Further, locking device further includes clamping screw handle, which is connected with clamping screw, is risen
To being not required to that the effect of locking member just can be completed by additional means.
Further, locking screw holes and locking unthreaded hole are set to the position in the close sucker hole of support base, the axis in two holes
Vertical range between the axis in sucker hole is preferably 35 to 40mm, and the axis in two holes is perpendicular with support base plane
The spacing of plane is preferably arranged to sucker hole in support base on direction (i.e. the direction parallel with the axial direction in sucker hole)
Bottom surface spacing of plane in support base half.
Further, the gap between sucker base and the sucker hole of support base according to actual fixture material, to process
The needs of mirror surface model etc. be configured, 0.07mm-0.1mm is preferably arranged to, so that the sucker hole of support base is not pressing from both sides
When tight sucker base, support sucker freely can be moved axially and be swung.
Further, support sucker will reasonably select that density is small and hardness or the high material of rigidity, and weight will be as far as possible
It is light, be supported the gravity being subject to after sucker suction to mitigate overlap.
Further, since the sucker hole of support base can deform in use, support base preferably selects elasticity
The high material of the limit is prolonged the service life with that can restore after guaranteeing sucker bore deformation.
Further, support holder assembly further includes one or more support frames, and support frame is connected with support base, will prop up
Support pedestal is supported and is fixed on operation plane (such as ground level)；In addition, in the technical program support fixture support holder assembly
And support Suction cup assembly is not intended to limit particular number, it, can be by multiple groups according to features such as practical shape, the sizes for splicing sub- mirror overlap
Support holder assembly and support Suction cup assembly are combined design, can be in the same propclip to achieve the effect that multi-point support
In tool be arranged multiple groups support holder assembly and support Suction cup assembly, also each support fixture can be only arranged one group of support holder assembly and
Suction cup assembly is supported, further according to needs while using multiple support fixtures.
The working principle of the invention is, when supporting sucker work, can generate larger suction, since sucker base can be
Freely along the axial movement and swing in hole inside the sucker hole of support base, therefore support sucker that can automatically be adsorbed onto spelling
The support surface of mirror surface overlap is connect, support base is squeezed by clamping screw at this time, clamps the sucker bore deformation of support base
Sucker base, thus the height of fixed support sucker.
By using above-mentioned technical proposal, the present invention can obtain following technical effect:
(1) this Auxiliary support fixture can accurately be adjusted to appropriate bearing height.
It independently of the overlap Auxiliary support fixture of main support system, is easily interfered with main support fixture, is difficult to determine winged
The bearing height of rim portion.The support sucker of this fixture and the sucker hole of support base are gap-matched, and can rely on vacuum
Suction makes to support sucker automatic absorbing to support surface, can thus be adjusted to appropriate bearing height very accurately, very greatly
Reduce to degree stress concentration.
(2) this Auxiliary support fixture is flexible, can adaptively support curved surface, applied widely.
The preferred sucker base of this fixture uses chondritic, since the sucker hole of chondritic and support base is gap
Cooperation, sucker base can freely along hole axial direction move and rotary motion, under the action of pull of vacuum, support
Sucker can rotate angle adjustment posture according to different curved surface adaptives, be preferably bonded different curved surfaces, be applicable in model
It encloses wide.
(3) this Auxiliary support fixture has preferable rigidity, and larger additional restraining force will not be generated to the overlap of mirror surface.
This fixture is using density is small and rigidity or material with high hardness, after the gravity of overlap, will not generate compared with
Big position deformation, can guarantee well in direct cutting process, the height portion of overlap separate section and non-separate section
Point be basically unchanged, will not the overlap part to mirror surface generate additional restraining force, greatly reduce both answering for overlap end
Power is concentrated.
In conclusion overlap Auxiliary support fixture provided by the invention is not only easy to manufacture, operation, and largely
The stress for reducing overlap end is concentrated, and being irregularly in advance broken for overlap end is avoided, it is effectively guaranteed that overlap is direct
Removal process is gone on smoothly, and is advantageous to splice application and popularization that the overlap of sub- mirror is directly cut.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present clip embodiment 1.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural schematic diagram of present clip embodiment 2.
Fig. 4 is the working state schematic representation of embodiment 2.
It marks and represents in figure: 1. support holder assemblies；11. support base；111. part I；112. part ii；12. sucker hole；
13. gap；14. locking device；141. clamping screw；142. locking screw pits；143. clamping screw handles；144 locking unthreaded holes；
15. support frame 2. supports Suction cup assembly；21. supporting sucker；22. sucker base；3. segmented mirror overlap；4. cutter；5. main branch
Support fixture.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
Embodiment 1
The structure of a preferred embodiment of the invention is as shown in Figure 1 and Figure 2, this Auxiliary support fixture includes support base group
Part 1 and support Suction cup assembly 2,
Support holder assembly 1 is made of 11, locking devices 14 of support base of a rectangle and two support frames 15；Branch
It supports pedestal 11 and is equipped with a cylindrical sucker hole 12 close to the position of a rectangular angular, which inhales for placing support
Disk component 2；Sucker hole 12 be it is non-closed, be equipped with a gap 13 in the position of the point a of Fig. 2, the gap 13 is from being parallel to
The side of rectangular support pedestal looks up, from the b point on the another side that a point extends to rectangular support pedestal 11, from vertical
It looks up in the side of rectangular support pedestal, is to extend to lower surface from the upper surface of support base 11, therefore the gap
Support base 11 is divided into two parts by 13: part I 111 and part ii 112.
Locking device 14 be set to support base 11 on, across part I 111 and part ii 112, locking device 14 play by
Part I 111 and part ii 112 squeeze mutually, make the effect of the deformation of sucker hole 12, select locking device for spiral shell in the present embodiment
Line pair comprising clamping screw 141, locking screw pit 142 and locking unthreaded hole 144 with handles；Unthreaded hole 144 is locked from support bottom
D point on the side of the part I 111 of seat 11 starts, and the part I of support base 11 is extended to along the direction perpendicular to gap 13
111 other sides；Locking screw pit 142 and locking unthreaded hole 144 are coaxial, and from the part ii of support base 11 112 close to gap 13
A lateral the inside extend to the c point in the part ii 112 of support base 11；Locking screw pit 142 and locking unthreaded hole 144 are arranged
In the position in the close sucker hole 12 of support base 11, the vertical range between the axis in two holes and the axis in sucker hole 12 is 35
To 40mm, also there is a particular/special requirement in the position on the perpendicular direction of two Kong Yu support bases, 11 plane, and the present embodiment is by two holes
The spacing setting of plane in axial line distance support base 11 are as follows: the bottom surface in sucker hole 12 is between plane in support base 11
Away from half.In use, being screwed in clamping screw 141 in locking screw pit 142 using handle, come by adjusting screw thread pair
It exerts a force to the part I 111 of support base 11, achievees the effect that squeeze part I 111 and part ii 112 mutually, so as to cause suction
Disk hole 12 is deformed to axle center, clamping brace Suction cup assembly 2, and makes the sucker hole for supporting Suction cup assembly 2 to be anchored on support base 11
In 12.
Support Suction cup assembly 2 is made of the spherical sucker base 22 of a support sucker 21 and one；Support Suction cup assembly 2
Sucker hole 12 with support base 11 is clearance fit, and sucker base 22 can do vertical inside the sucker hole 12 of support base 11
Directly in the up and down motion of support base 11, can also be swung around axle center.The lower end of sucker base 22 connects with tracheae, gas
The other end of pipe connects vacuum pump, to realize support 21 vacuum suction of sucker on mirror surface overlap.
Support sucker 21 can be integrally formed with sucker base 22, and luggage is matched again after can also processing respectively.Sucker base 22
Gap between the sucker hole 12 of support base 11 according to the needs of actual fixture material, the mirror surface model to be processed etc. into
Row setting, the present embodiment are set as 0.07mm, and sucker base 22 can be in the sucker hole 12 of support base 11 certainly when not clamping
It is axially moved by ground and is swung.
Support sucker 21 will reasonably select that density is small and hardness or the high material of rigidity, such as 7075 aluminium alloys.
The material that support base 11 preferably selects elastic limit high, such as No. 65 steel.
Embodiment 2
According to actual needs, the element of embodiment 1 can be overlapped to combination, overlap Auxiliary support fixture can be realized
Supported at three point mode and multi-point support mode.
As shown in figure 3, incorporating three groups of support holder assemblies 1 and support Suction cup assembly 2, support in the same support fixture
Frame 15 is still set as two as needed, and the present embodiment can achieve the effect that supported at three point.
The working condition of multi-point support as shown in figure 4, complete mirror surface cutting with multiple supported at three point fixtures jointly.It is circular
Mirror base will be cut into the segmented mirror of hexagon, it is therefore desirable to cut off six segmented mirror overlaps 3.Firstly the need of by the main branch of mirror base
Support 5 positioning and clamping of fixture is good, then fixes the splicing for needing to remove with supported at three point Auxiliary support fixture (shown in Fig. 3) support
Mirror surface overlap 3.Segmented mirror overlap 3 support it is clamping after, directly cut entire segmented mirror overlap 3 with cutter 4.
The present invention is not limited to the above embodiments, all are belonged to using the technical solution that equivalent replacement or equivalence replacement are formed
The scope of protection of present invention.
Claims (10)
1. a kind of segmented mirror excision forming Auxiliary support fixture, which is characterized in that including support holder assembly (1) and be placed in
Support the support Suction cup assembly (2) in holder assembly, wherein
The support holder assembly (1) includes support base (11) locking device (14), and the support base (11) is equipped with sucker
Hole (12), the sucker hole (12) for place support Suction cup assembly (2), the sucker hole (12) with support base (11) plane
It is non-closed on parallel direction, one is equipped with from non-closed one end of the sucker hole (12) to the edge of support base (11)
Gap (13), gap (13) along the direction perpendicular with support base (11) plane up and down, by the support base
(11) it is divided into part I (111) and part ii (112), and is equipped on the divided part I (111) and part ii (112)
Locking device (14)；
The support Suction cup assembly (2) includes support sucker (21) and sucker base (22), the support Suction cup assembly (2) and institute
The sucker hole (12) for stating support base (11) is clearance fit, and the sucker base (22) can be in the support base (11)
Freely along the direction movement perpendicular with support base (11) plane and swing inside sucker hole (12).
2. fixture according to claim 1, it is characterised in that: the sucker hole (12) of the support base (11) is cylinder
Hole.
3. fixture according to claim 2, it is characterised in that: the sucker base (22) is chondritic.
4. fixture according to claim 3, it is characterised in that: the locking device (14) includes clamping screw (141), lock
Tight threaded hole (142) and locking unthreaded hole (144), locking unthreaded hole (144) is outside the part I (111) of support base (11)
Side extends to the another side of the part I (111) of support base (11) along the direction perpendicular to gap (13)；The locking
Threaded hole (142) and locking unthreaded hole (144) coaxially, and from the part ii of support base (11) (112) close to gap (13) one
Laterally extend within.
5. fixture according to claim 4, it is characterised in that: the locking device (14) further includes clamping screw handle
(143), which is connected with the clamping screw (141).
6. fixture according to claim 4 or 5, it is characterised in that: the locking screw pit (142) and locking unthreaded hole
(144) be set to the position of the close sucker hole (12) of support base (11), the axis of the axis in two holes and sucker hole (12) it
Between vertical range be 35 to 40mm, the axis in two holes on the direction perpendicular with support base (11) plane distance support bottom
The spacing of plane is set as the bottom surface in sucker hole (12) two points of the spacing of plane on support base (11) on seat (11)
One of.
7. according to claim 1 to fixture described in any one of 5, it is characterised in that: the sucker base (22) and support
Gap setting between the sucker hole (12) of pedestal (11) is 0.07mm-0.1mm.
8. according to claim 1 to fixture described in any one of 5, it is characterised in that: support sucker (21) selection is close
Spend small and hardness or the high material of rigidity.
9. according to claim 1 to fixture described in any one of 5, it is characterised in that: the support base (11) selects bullet
The property high material of the limit.
10. according to claim 1 to fixture described in any one of 5, it is characterised in that: the support holder assembly (1) is also wrapped
It includes support frame (15), support frame as described above (15) is connected with support base (11)；According to the actual conditions of the mirror surface overlap of application,
Multiple groups support holder assembly (1) and support Suction cup assembly (2) are combined design, to realize multi-point support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610991992.8A CN106517760B (en) | 2016-11-10 | 2016-11-10 | Segmented mirror excision forming Auxiliary support fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610991992.8A CN106517760B (en) | 2016-11-10 | 2016-11-10 | Segmented mirror excision forming Auxiliary support fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106517760A CN106517760A (en) | 2017-03-22 |
| CN106517760B true CN106517760B (en) | 2019-01-18 |
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ID=58350614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610991992.8A Active CN106517760B (en) | 2016-11-10 | 2016-11-10 | Segmented mirror excision forming Auxiliary support fixture |
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| Country | Link |
|---|---|
| CN (1) | CN106517760B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201645354U (en) * | 2010-03-16 | 2010-11-24 | 沈阳飞机工业（集团）有限公司 | Total-freedom vacuum chuck |
| CN103567919A (en) * | 2013-10-11 | 2014-02-12 | 中航飞机股份有限公司西安飞机分公司 | Vacuum adsorbing clamp for thin-walled workpiece |
| CN204108713U (en) * | 2014-09-25 | 2015-01-21 | 航宇救生装备有限公司 | Module magnetic vacuum sucker device |
| CN204504800U (en) * | 2015-03-05 | 2015-07-29 | 智腾机械设备（上海）有限公司 | A kind of processing tool of parabola shaped hexagon optical mirror slip |
| CN205167004U (en) * | 2015-12-01 | 2016-04-20 | 贵州森塑宇木塑有限公司 | PVC sheet material cutting device |
-
2016
- 2016-11-10 CN CN201610991992.8A patent/CN106517760B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201645354U (en) * | 2010-03-16 | 2010-11-24 | 沈阳飞机工业（集团）有限公司 | Total-freedom vacuum chuck |
| CN103567919A (en) * | 2013-10-11 | 2014-02-12 | 中航飞机股份有限公司西安飞机分公司 | Vacuum adsorbing clamp for thin-walled workpiece |
| CN204108713U (en) * | 2014-09-25 | 2015-01-21 | 航宇救生装备有限公司 | Module magnetic vacuum sucker device |
| CN204504800U (en) * | 2015-03-05 | 2015-07-29 | 智腾机械设备（上海）有限公司 | A kind of processing tool of parabola shaped hexagon optical mirror slip |
| CN205167004U (en) * | 2015-12-01 | 2016-04-20 | 贵州森塑宇木塑有限公司 | PVC sheet material cutting device |
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| Publication number | Publication date |
|---|---|
| CN106517760A (en) | 2017-03-22 |
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