CN105643303B - One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface - Google Patents
One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface Download PDFInfo
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- CN105643303B CN105643303B CN201610224898.XA CN201610224898A CN105643303B CN 105643303 B CN105643303 B CN 105643303B CN 201610224898 A CN201610224898 A CN 201610224898A CN 105643303 B CN105643303 B CN 105643303B
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- clamping device
- circular orientation
- cover inner
- rectification cover
- curved surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is related to a kind of machining clamping device, to solve the composition surface of the existing conformal precision machined clamping device of optical rectification cover inner surface as localized contact or even put contact, this can produce unpredictable total deformation, and being completely fixed for radome fairing is difficult to, the problem of causing machining accuracy to be difficult to ensure that.The upper end of matrix of the present invention is provided with flange, the lower end of matrix is provided with base, matrix inner chamber is curved surface cavity, the cross section of curved surface cavity is the variable cross-section being from top to bottom gradually reduced, several circular orientation boss are provided with the inwall of curved surface cavity, the curved surface radian of circular orientation boss is consistent with the curved surface radian of rectification cover outer surface, it is lateral trench between two adjacent circular orientation boss, several circular orientation boss are provided with longitudinal groove, and the through hole communicated with curved surface cavity is provided with the bottom centre of matrix.The present invention is used for conformal optical rectification cover inner surface Precision Machining.
Description
Technical field
The present invention relates to one kind to be machined clamping device, and in particular to one kind is used for conformal optical rectification cover inner surface essence
The clamping device of close processing.
Background technology
The currently requirement more and more higher to aircraft speed, in order to adapt to the development of high-speed aircraft, balances aircraft
Aerodynamic demands, the stealthy contradiction between optical property, conformal optical element arise at the historic moment, i.e.,：To improve system sky
The smoothly optical window of adaptive system platform exterior shape for the purpose of aerodynamic properties.In the application of conformal optical element
Primary key element is the radome fairing of aircraft, and relative to conventional hemispherical radome fairing, conformal optical rectification cover can be significantly
Reduce aircraft flight resistance, improve aircraft around air flow field, reduce aero-optical effect to aircraft interior into
As the influence of quality.
The unconventional shape of conformal optical rectification cover has incomparable advantage compared with conventional hemispherical radome fairing, but
This also brings greatly difficult and challenge to its accurate, Ultra-precision Turning.In the accurate, super of conformal optical rectification cover inner surface
There is the problems such as depth is big, steepness is high, operating force is big, workpiece is yielding in precision machining processes.Existing conformal optical rectification
The characteristics of cover outer surface clamping device is that the composition surface of fixture is the cyclic structure of ladder distribution, due to the clamping table with increasing
Face, this can guarantee that the total deformation of radome fairing to a certain extent, but because radome fairing outer surface and clamping device all can not
There is certain face type error with avoiding, therefore the composition surface of the two is that localized contact even puts contact, this can be produced can not be pre-
The total deformation known, and being completely fixed for radome fairing is difficult to, cause machining accuracy to be difficult to ensure that.
The content of the invention
The present invention is to solve the engagement that the existing conformal precision machined clamping device of optical rectification cover inner surface is fixture
Face is the cyclic structure of ladder distribution, because rectification cover outer surface and clamping device all inevitably there is certain face type to miss
Difference, therefore the composition surface of the two is that localized contact even puts contact, this can produce unpredictable total deformation, and be difficult to reality
Existing radome fairing is completely fixed, the problem of causing machining accuracy to be difficult to ensure that, and provides a kind of be used in conformal optical rectification cover
The clamping device of surface accurate processing.
One kind of the present invention, which is used for the conformal precision machined clamping device of optical rectification cover inner surface, includes matrix, the base
The upper end of body is provided with flange, and the lower end of described matrix is provided with base, and described matrix inner chamber is curved surface cavity, curved surface cavity it is transversal
Face is the variable cross-section being from top to bottom gradually reduced, and several circular orientation boss are provided with the inwall of the curved surface cavity, annular
The curved surface radian of positioning boss is consistent with the curved surface radian of rectification cover outer surface, is horizontal between two adjacent circular orientation boss
To groove, longitudinal groove is equipped with each circular orientation boss, is provided with and curved surface cavity phase at the bottom centre of described matrix
Logical through hole.
Technical scheme has the advantages that：
First, matrix of the invention is bowl-type structure, is the main element of clamping device, mainly plays a supportive role, can be direct
Radome fairing is put into curved surface cavity and positioned, because flange, matrix and the base of the present invention are integrated part, avoids zero
Influence of the rigging error to machining accuracy between part；The curved surface radian of circular orientation boss and the curved surface radian of rectification cover outer surface
Unanimously, thus being brought into close contact with realization device and radome fairing, so as to ensure the positioning precision of radome fairing.
2nd, the rigidity of matrix is had a major impact to the machining accuracy of radome fairing, and clip base is should first ensure that in design
Rigidity, then using small quality as objective optimization size and structure.The flange is located at the upper end of clamping device, according to actual need
Want all assemble other auxiliary devices in the upper and lower surface of flange, thus upper and lower surface should have it is sufficiently high
Form accuracy and positional precision.
3rd, the clamp base is both the base of whole clamping device and is attached, to fixed with Machinetool workpiece axle
Part, make fixture that there is defined location with respect to lathe, it directly affects the machining accuracy of radome fairing, therefore, the assembling of base
The flatness in face is less than 0.005mm.
4th, the effect of the flange is to extend the function of clamping device, and feeler block, finishing emery wheel etc. can be assembled above
Servicing unit, this can fully ensure that the machining accuracy and processing efficiency of radome fairing.
5th, the present invention realizes the precision machined accurate clamping of conformal optical rectification cover inner surface, can effectively meet rectification
The requirement of high accuracy, low stress during cover clamping, play an important roll to the machining accuracy for improving conformal optical rectification cover.
Brief description of the drawings
The axle that Fig. 1 is the present invention surveys profile；
Fig. 2 is the elevation cross-sectional view of the present invention；
Fig. 3 is Fig. 2 top view；
Fig. 4 is Fig. 2 A-A sectional views；
Fig. 5 is Fig. 1 I partial enlarged drawings；
Fig. 6 is Fig. 1 II partial enlarged drawing.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1~Fig. 6, present embodiment includes matrix 2, the base
The upper end of body 2 is provided with flange 3, and the lower end of described matrix 2 is provided with base 1, and the inner chamber of described matrix 2 is curved surface cavity M, curved surface cavity
M cross section is the variable cross-section being from top to bottom gradually reduced, and it is convex to be provided with several circular orientations on the inwall of the curved surface cavity M
Platform 4, the curved surface radian of circular orientation boss 4 is consistent with the curved surface radian of rectification cover outer surface, and two adjacent circular orientations are convex
It is lateral trench 5 between platform 4, is equipped with longitudinal groove 6 on each circular orientation boss 4, is set at the bottom centre of described matrix 2
There is the through hole 7 communicated with curved surface cavity M, through hole 7 is avoided because of caused by the scale error and face shape error on radome fairing top
Position error, and the diameter of through hole 7 and height determine the area of nethermost setting element 4.Lateral trench 5 and longitudinal ditch
The size of groove 6 determines the quantity and surface area of circular orientation boss 4, and the surface area of several circular orientation boss 4 is identical
And it is evenly distributed.The surface area of circular orientation boss 4 is to influence the important feature of radome fairing crudy.Circular orientation is convex
The curved surface quantity and size of platform 4 influence the stress raisers and machining accuracy of radome fairing；The fitting surface 1-2 of base 1 should
With higher flatness, flatness is less than 0.005mm.
Embodiment two：Illustrate present embodiment, the height h of the circular orientation boss 4 of present embodiment with reference to Fig. 5
For 20mm~100mm, the thickness s of circular orientation boss 4 is 3mm~50mm.The size of circular orientation boss 4 is to influence radome fairing
An important factor for total deformation and stress raisers size, it should be designed by theory analysis and simulation calculation.Other groups
Into and annexation it is identical with embodiment one.
Embodiment three：Illustrate present embodiment, the height h of the circular orientation boss 4 of present embodiment with reference to Fig. 5
For 50mm, the thickness s of the circular orientation boss 4 is 10mm.The size of circular orientation boss 4 is to influence radome fairing total deformation
An important factor for stress raisers size, it should be designed by theory analysis and simulation calculation.Other compositions and connection
Relation is identical with embodiment two.
Embodiment four：Illustrate present embodiment, the depth and ring of the lateral trench 5 of present embodiment with reference to Fig. 6
The thickness s of shape positioning boss 4 is equal, and the depth t of longitudinal groove 6 is 2mm~10mm, the width d of longitudinal groove 6 for 5mm~
20mm.Other compositions and annexation are identical with embodiment three.
Embodiment five：Illustrate present embodiment with reference to Fig. 6, the depth t of the longitudinal groove 6 of present embodiment is
5mm, the width d of longitudinal groove 6 is 10mm.Other compositions and annexation are identical with embodiment four.
Embodiment six：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, the through hole 7 of present embodiment it is a diameter of whole
Flow the 1/6~1/10 of cover outside diameter.Other compositions and annexation are identical with embodiment one.
Embodiment seven：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, the through hole 7 of present embodiment it is a diameter of whole
Flow the 1/8 of cover outside diameter.Other compositions and annexation are identical with embodiment six.
Embodiment eight：Illustrate present embodiment with reference to Fig. 4, it is equal along same circumference on the base 1 of present embodiment
It is laid with several platform connecting hole 1-1.So set can by screw directly by clamping device to fixed and be connected to Machinetool workpiece
On axle, so as to realize the installation of clamping device.Other compositions and annexation are identical with embodiment one.
Embodiment nine：Illustrate present embodiment with reference to Fig. 3, it is equal along same circumference on the flange 3 of present embodiment
It is laid with several upper connecting hole 3-3.Servicing unit (feeler block, finishing emery wheel) etc. is exactly to be connected to this by upper connecting hole 3-3
On clamping device.Other compositions and annexation are identical with embodiment one or eight.
Embodiment ten：Illustrate present embodiment with reference to Fig. 1, the material of the matrix 2 of present embodiment is aluminium alloy.
This material thermal coefficient of expansion and density are small.Other compositions and annexation are identical with embodiment nine.
Claims (10)
1. one kind is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is characterised in that：The clamping device
Including matrix (2), the upper end of described matrix (2) is provided with flange (3), and the lower end of described matrix (2) is provided with base (1), the base
Body (2) inner chamber is curved surface cavity (M), and the cross section of curved surface cavity (M) is the variable cross-section being from top to bottom gradually reduced, the curved surface
Be provided with several circular orientation boss (4) on the inwall of inner chamber (M), the curved surface radian of circular orientation boss (4) with outside radome fairing
The curved surface radian on surface is consistent, is lateral trench (5) between two adjacent circular orientation boss (4), and each circular orientation is convex
Longitudinal groove (6) is equipped with platform (4), the through hole communicated with curved surface cavity (M) is provided with the bottom centre of described matrix (2)
(7)。
2. one kind according to claim 1 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The height (h) of the circular orientation boss (4) is 20mm~100mm, the thickness (s) of the circular orientation boss (4)
For 3mm~50mm.
3. one kind according to claim 2 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The height (h) of the circular orientation boss (4) is 50mm, and the thickness (s) of the circular orientation boss (4) is 10mm.
4. one kind according to claim 1 or 2 is used for the conformal precision machined clamping device of optical rectification cover inner surface, its
It is characterised by：The depth of the lateral trench (5) is equal with the thickness (s) of circular orientation boss (4), the depth of longitudinal groove (6)
It is 2mm~10mm to spend (t), and the width (d) of longitudinal groove (6) is 5mm~20mm.
5. one kind according to claim 4 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The depth (t) of the longitudinal groove (6) is 5mm, and the width (d) of longitudinal groove (6) is 10mm.
6. one kind according to claim 1 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The 1/6~1/10 of a diameter of radome fairing outside diameter of the through hole (7).
7. one kind according to claim 6 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The 1/8 of a diameter of radome fairing outside diameter of the through hole (7).
8. one kind according to claim 1 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：On the base (1) several platform connecting holes (1-1) are provided with along same circumference uniform distribution.
9. one kind according to claim 1 or 8 is used for the conformal precision machined clamping device of optical rectification cover inner surface, its
It is characterised by：On the flange (3) several upper connecting holes (3-1) are provided with along same circumference uniform distribution.
10. one kind according to claim 9 is used for the conformal precision machined clamping device of optical rectification cover inner surface, it is special
Sign is：The material of matrix (2) is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224898.XA CN105643303B (en) | 2016-04-12 | 2016-04-12 | One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224898.XA CN105643303B (en) | 2016-04-12 | 2016-04-12 | One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface |
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| Publication Number | Publication Date |
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| CN105643303A CN105643303A (en) | 2016-06-08 |
| CN105643303B true CN105643303B (en) | 2018-02-02 |
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| CN201610224898.XA Active CN105643303B (en) | 2016-04-12 | 2016-04-12 | One kind is used for the conformal precision machined clamping device of optical rectification cover inner surface |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926006B (en) * | 2017-04-25 | 2019-01-18 | 哈尔滨工业大学 | A kind of clamping device and clamping method for the conformal head-shield surface processing of high steepness |
| CN107817568B (en) * | 2017-11-10 | 2020-05-26 | 哈尔滨工业大学 | Clamping device and clamping method for processing concave surface of aspheric optical element with large length-diameter ratio |
| CN108044129B (en) * | 2017-12-06 | 2019-06-18 | 中国人民解放军国防科技大学 | Ultra-precise turning method for high-gradient inner-outer cavity conformal optical element |
| CN109202628A (en) * | 2018-08-23 | 2019-01-15 | 盐城加申汽车制动部件有限公司 | A kind of inner arc grinding attachment for preventing brake block liner from deforming |
| CN109366207B (en) * | 2018-11-29 | 2020-04-17 | 上海无线电设备研究所 | Clamping device and method for large-caliber conformal optical revolving body hood |
| CN110281047B (en) * | 2019-05-30 | 2020-09-08 | 武汉船用机械有限责任公司 | Machining tool and machining method for air guide sleeve of full-rotation rudder propeller |
| CN110480453B (en) * | 2019-09-23 | 2021-04-02 | 哈尔滨工业大学 | Ultra-precision surface machining clamping method for thin-walled tube element with large depth-diameter ratio |
| CN115041925A (en) * | 2022-06-29 | 2022-09-13 | 徐德富 | Shape-preserving processing method |
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| CN101352826A (en) * | 2008-09-28 | 2009-01-28 | 清华大学 | Method for polishing inner concave surface of optical elements as well as device |
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| CN105081681A (en) * | 2014-05-20 | 2015-11-25 | 哈尔滨飞机工业集团有限责任公司 | Machining method for helicopter fairing supporting piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7571527B2 (en) * | 2005-03-29 | 2009-08-11 | The Boeing Company | Mandrel for fabrication of a monolithic composite nacelle panel |
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| CN101352826A (en) * | 2008-09-28 | 2009-01-28 | 清华大学 | Method for polishing inner concave surface of optical elements as well as device |
| CN101559571A (en) * | 2009-03-11 | 2009-10-21 | 清华大学 | Method and device for polishing magnetic field auxiliary flexible rotary brush for optical element |
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| CN105643303A (en) | 2016-06-08 |
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