CN105242370A - Stress isolator based on flexible structure - Google Patents
Stress isolator based on flexible structure Download PDFInfo
- Publication number
- CN105242370A CN105242370A CN201510801344.7A CN201510801344A CN105242370A CN 105242370 A CN105242370 A CN 105242370A CN 201510801344 A CN201510801344 A CN 201510801344A CN 105242370 A CN105242370 A CN 105242370A
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- CN
- China
- Prior art keywords
- stress
- stress isolation
- flexible boot
- interior flexible
- flexible sleeve
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/001—Counterbalanced structures, e.g. surgical microscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/008—Mountings, adjusting means, or light-tight connections, for optical elements with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The invention relates to the field of mounting of precision optical instrument, and provides a stress isolator based on a flexible structure, so as to solve the problem that an optical element base or a platform is likely to deform during a precision optical instrument mounting and debugging process. The stress isolator comprises an inner flexible sleeve and an outer threaded base, wherein the inner flexible sleeve is sleeved inside the outer threaded base; the lower end of the inner flexible sleeve is fixedly connected with the lower end of the outer threaded base; the inner flexible sleeve is provided with at least one group of flexible stress isolation grooves; and each flexible stress isolation groove group comprises two stress isolation grooves arranged symmetrically along the central axis of the inner flexible sleeve. the technical scheme of the invention has the beneficial effects that the mounting stress can be effectively isolated, the mounting stress can be prevented from being transferred to the optical system, uncertainty system errors caused by different screw torques by an assembler can be avoided, thermal deformation stress can be effectively isolated, and a temperature change adaptation ability of the system is improved.
Description
Technical field
The present invention relates to precision optical instrument field engineering field, particularly a kind of stress isolation device based on flexible structure.
Background technology
At present, existing optical device is installed and is mainly directly connected by screw, as shown in Figure 1, will be arranged on installation foundation by attachment screw for connection optical instrument.
When adopting this mounting means, coupling stiffness is difficult to control, and mount stress is easily direct is delivered to optical instrument by attachment screw.Simultaneously, when installation foundation material is different with being connected optical instrument material thermal expansion coefficient, the change of temperature easily causes the appearance of thermal stress, thus causes the base of installation optical element or platform to deform, and then affects the beam collimation precision of optical instrument.
Summary of the invention
[technical matters that will solve]
The object of this invention is to provide a kind of stress isolation device based on flexible structure, to solve in the Installation and Debugging process of precision optical instrument, optical component mount or platform hold yielding problem.
[technical scheme]
The present invention is achieved by the following technical solutions.
The present invention relates to a kind of stress isolation device based on flexible structure, it is for isolating mount stress when optical instrument being arranged on installation foundation, it comprises interior flexible boot and external thread seat, described interior flexible boot is socketed in the inside of external thread seat, the lower end of described interior flexible boot is fixedly connected with the lower end of external thread seat, described interior flexible boot is at least provided with one group of flexibility stress isolation channel, often group flexibility stress isolation channel comprises symmetrically arranged two the stress isolation grooves of central axis along interior flexible boot, described stress isolation groove comprises the first stress isolation groove be disposed radially, the the second stress isolation groove arranged vertically, connect the tertiary stress isolation channel of the first stress isolation groove and the second stress isolation groove.
As one preferred embodiment, described interior flexible boot is provided with two groups of flexibility stress isolation channels, described two groups of flexibility stress isolation channels are separately positioned on the first half and the latter half of interior flexible boot.
As another preferred embodiment, the lower end of described interior flexible boot and the lower end of external thread seat are welded and fixed.
As another preferred embodiment, the material of described interior flexible boot is polypropylene.
[beneficial effect]
The technical scheme that the present invention proposes has following beneficial effect:
This invention effectively can isolate mount stress, reduces mount stress and is delivered to optical system, avoids the uncertain system error that assembly crewman causes because screw torque is firmly different; Meanwhile, the present invention can effectively isolate thermal deformation stress, improves the difference variation adaptive faculty of system.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of optical device in prior art.
The structural representation of the stress isolation device based on flexible structure that Fig. 2 provides for embodiments of the invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, carry out clear, complete description by the specific embodiment of the present invention below.
Embodiment one
The structural representation of the stress isolation device based on flexible structure that Fig. 2 provides for the embodiment of the present invention one, this stress isolation device is used for isolating mount stress when optical instrument 2 is arranged on installation foundation 3.As shown in Figure 2, this stress isolation device comprises interior flexible boot 21 and external thread seat 22, interior flexible boot 21 is socketed in the inside of external thread seat 22, the lower end of interior flexible boot 21 and the lower end of external thread seat 32 are by being welded and fixed, need to illustrate, interior flexible boot 21 only contacts at weld 23 with external thread seat 22, there is small―gap suture in interior flexible boot 21 with the non-contact part of external thread seat 22, in the present embodiment, this gap is 0.5mm.
In the present embodiment, interior flexible boot 21 is provided with two groups of flexibility stress isolation channels, wherein one group of flexibility stress isolation channel is arranged on the first half of interior flexible boot 21, and another group flexibility stress isolation channel is arranged on the latter half of interior flexible boot 21.Because the structure of two groups of flexibility stress isolation channels is identical, therefore the present embodiment selects the flexibility stress isolation channel being arranged on interior flexible boot 21 the first half to carry out structure explanation, this group flexibility stress isolation channel comprises the symmetrically arranged stress isolation groove 211 of central axis along interior flexible boot 21 and stress isolation groove 212, stress isolation groove 211 is identical with the structure of stress isolation groove 212, stress isolation groove 211 comprises the first stress isolation groove 2111 be disposed radially, the the second stress isolation groove 2112 arranged vertically, connect the tertiary stress isolation channel 2113 of the first stress isolation groove 2111 and the second stress isolation groove 2112, namely the first stress isolation groove 2111 is perpendicular to the central axis of interior flexible boot 21, second stress isolation groove 2112 is parallel to the central axis of interior flexible boot 21.
In the present embodiment, the material of interior flexible boot 21 is polypropylene.
The following describes the principle of work of the present embodiment.
Optical instrument 2 relevant position to be connected arranges threaded hole, realizes being threaded so that stress isolation device is installed on optical instrument 2 by this threaded hole with external thread seat 22; Attachment screw 1 realizes being connected with installation foundation 3 through after the interior flexible boot 21 of stress isolation device, and attachment screw 1 acts on interior flexible boot 21 upper surface.Because stress isolation device axial rigidity is better, so can reliably optical instrument 2 be installed on basis 3.The radial stress isolation channel that stress isolation device is good can ensure that the moment of torsion in installation attachment screw 1 process only can act on interior flexible boot 21, and can not transfer torque on optical instrument 2, equally, when occurring that the temperature difference causes occurring thermal deformation difference between installation foundation 3 and mounted optical instrument 2, can be discharged by the distortion of the stress isolation groove of interior flexible boot 21 and be compensated.Therefore for mounted optical instrument 2, be in a kind of state relatively freely all the time, will optical axis caused because of torsional deformation to occur deviation.Therefore, because attachment screw 1 passes through stress isolation device as transition in the present embodiment, realize the reliable installation to optical instrument 2, namely avoid erection stress and be delivered on optical instrument 2, effectively can discharge again the thermal stress that difference variation is brought.Axially good rigidity ensure that the reliability that optical instrument 2 is installed and shock resistance, the interior flexible boot 21 possessing flexibility stress isolation channel ensure that the acclimation to heat ability that optical instrument is good, test shows, apply this stress isolation device compared with not using, under 25 ± 15 DEG C of environmental baselines, optical axis deviating amount from 130 a little degree dropped to 14 and spent a little.
As can be seen from the above embodiments, the embodiment of the present invention effectively can isolate mount stress, reduces mount stress and is delivered to optical system, avoids the uncertain system error that assembly crewman causes because screw torque is firmly different; Meanwhile, the present invention can effectively isolate thermal deformation stress, improves the difference variation adaptive faculty of system.
Need to illustrate, the embodiment of foregoing description is a part of embodiment of the present invention, instead of whole embodiment, neither limitation of the present invention.Based on embodiments of the invention, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Claims (4)
1. the stress isolation device based on flexible structure, it is for isolating mount stress when optical instrument being arranged on installation foundation, it is characterized in that comprising interior flexible boot and external thread seat, described interior flexible boot is socketed in the inside of external thread seat, the lower end of described interior flexible boot is fixedly connected with the lower end of external thread seat, described interior flexible boot is at least provided with one group of flexibility stress isolation channel, often group flexibility stress isolation channel comprises symmetrically arranged two the stress isolation grooves of central axis along interior flexible boot, described stress isolation groove comprises the first stress isolation groove be disposed radially, the the second stress isolation groove arranged vertically, connect the tertiary stress isolation channel of the first stress isolation groove and the second stress isolation groove.
2. the stress isolation device based on flexible structure according to claim 1, it is characterized in that described interior flexible boot is provided with two groups of flexibility stress isolation channels, described two groups of flexibility stress isolation channels are separately positioned on the first half and the latter half of interior flexible boot.
3. the stress isolation device based on flexible structure according to claim 1, is characterized in that the lower end of described interior flexible boot and the lower end of external thread seat are welded and fixed.
4. the stress isolation device based on flexible structure according to claim 1, is characterized in that the material of described interior flexible boot is polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801344.7A CN105242370B (en) | 2015-11-19 | 2015-11-19 | Stress isolation device based on flexible structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801344.7A CN105242370B (en) | 2015-11-19 | 2015-11-19 | Stress isolation device based on flexible structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105242370A true CN105242370A (en) | 2016-01-13 |
| CN105242370B CN105242370B (en) | 2017-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510801344.7A Active CN105242370B (en) | 2015-11-19 | 2015-11-19 | Stress isolation device based on flexible structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105242370B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955058A (en) * | 2019-12-17 | 2020-04-03 | 中国工程物理研究院应用电子学研究所 | Three-freedom stress releaser |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113820A (en) * | 2001-10-01 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Elasticity connection method and connecting member |
| US20080193201A1 (en) * | 2004-05-03 | 2008-08-14 | Carl Zeiss Smt Ag | Optical Assembly Structure Comprising a Connecting Body with Thermal Expansion Compensations Means |
| CN201265585Y (en) * | 2007-06-11 | 2009-07-01 | 福特环球技术公司 | System with lining for reducing creep deformation and corrosion of two clamping component connectors |
| CN102540400A (en) * | 2012-02-29 | 2012-07-04 | 中国科学院西安光学精密机械研究所 | Flexible primary mirror supporting device |
| CN102588716A (en) * | 2012-03-07 | 2012-07-18 | 中国科学院长春光学精密机械与物理研究所 | Satellite-remote sensor flexible heat sinking joint |
| CN203758656U (en) * | 2014-01-24 | 2014-08-06 | 蚌埠市创业电子有限责任公司 | Piezoresistive pressure sensor base with stress isolation groove |
| CN104950137A (en) * | 2015-06-23 | 2015-09-30 | 西安电子科技大学 | Transverse sensitive acceleration sensor chip having stress isolation structure |
| CN205210386U (en) * | 2015-11-19 | 2016-05-04 | 中国工程物理研究院应用电子学研究所 | Stress isolator based on flexible construction |
-
2015
- 2015-11-19 CN CN201510801344.7A patent/CN105242370B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113820A (en) * | 2001-10-01 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Elasticity connection method and connecting member |
| US20080193201A1 (en) * | 2004-05-03 | 2008-08-14 | Carl Zeiss Smt Ag | Optical Assembly Structure Comprising a Connecting Body with Thermal Expansion Compensations Means |
| CN201265585Y (en) * | 2007-06-11 | 2009-07-01 | 福特环球技术公司 | System with lining for reducing creep deformation and corrosion of two clamping component connectors |
| CN102540400A (en) * | 2012-02-29 | 2012-07-04 | 中国科学院西安光学精密机械研究所 | Flexible primary mirror supporting device |
| CN102588716A (en) * | 2012-03-07 | 2012-07-18 | 中国科学院长春光学精密机械与物理研究所 | Satellite-remote sensor flexible heat sinking joint |
| CN203758656U (en) * | 2014-01-24 | 2014-08-06 | 蚌埠市创业电子有限责任公司 | Piezoresistive pressure sensor base with stress isolation groove |
| CN104950137A (en) * | 2015-06-23 | 2015-09-30 | 西安电子科技大学 | Transverse sensitive acceleration sensor chip having stress isolation structure |
| CN205210386U (en) * | 2015-11-19 | 2016-05-04 | 中国工程物理研究院应用电子学研究所 | Stress isolator based on flexible construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955058A (en) * | 2019-12-17 | 2020-04-03 | 中国工程物理研究院应用电子学研究所 | Three-freedom stress releaser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105242370B (en) | 2017-10-27 |
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