CN105402216B - A kind of locking device for precision optical instrument - Google Patents
A kind of locking device for precision optical instrument Download PDFInfo
- Publication number
- CN105402216B CN105402216B CN201511017498.3A CN201511017498A CN105402216B CN 105402216 B CN105402216 B CN 105402216B CN 201511017498 A CN201511017498 A CN 201511017498A CN 105402216 B CN105402216 B CN 105402216B
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- CN
- China
- Prior art keywords
- latch segment
- adjusting screw
- fixed block
- directions
- locking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Telescopes (AREA)
Abstract
The invention discloses a kind of locking device for precision optical instrument, including adjusting screw, latch segment one, latch segment two, fixed block.Adjusting screw is provided with internal thread and external screw thread, and internal thread is identical, oppositely oriented with externally threaded pitch.The head of latch segment one is provided with the external screw thread to match with the internal thread of adjusting screw, and the opening portion of latch segment two is provided with the internal thread to match with the external screw thread of adjusting screw.Fixed block is fixed on instrument, for being oriented to latch segment two.During the locking device locking of the present invention, by locking member stress symmetrically and evenly, axial dipole field will not be produced by locking member；In the course of work of the instrument after locking, the phenomenon that fine motion walks will not be produced by locking member；The size of coupling mechanism force can be adjusted by rotational lock screw, and coupling mechanism force is uniform.
Description
Technical field
The invention belongs to precision optical instrument field, the locking after more particularly to a kind of focusing applied to precision optical instrument
Locking device.
Background technology
In the imaging process of optical system, the relative distance of target object and optical system is always varied from, to make
Target object can on the image device of focal plane blur-free imaging, it is necessary to optical system is focused, that is, is adjusted to
As device and the distance of optical system, image device is set to be located on focal plane.Necessarily locked after focusing with locking device, otherwise
The factors such as vibration, which easily cause, rocks or misplaces, and the relative position of image device and focal plane is changed, and causes imaging not
Clearly.
At present, the locking device of optical instrument is that from side, extruding is held out against by locking member by lock-screw mostly, so past
It is past to cause by the skew of locking member axis, and then cause the skew of focal position, image device and focal plane to produce angle or phase
To displacement, the problems such as causing to be imaged partly or wholly unintelligible, target object slip chart picture center.
The content of the invention
For the above-mentioned deficiency of prior art, the present invention proposes a kind of locking device for precision optical instrument.This
The locking device of invention makes to be produced fine motion from both sides symmetrically and evenly stress by locking member by locking member and be walked in locking
Position phenomenon.
To achieve these goals, technical scheme is as follows：
A kind of locking device for precision optical instrument, including adjusting screw, latch segment one, latch segment two, fixed block,
The adjusting screw includes head cap portion and threaded portion, and threaded portion is provided with internal thread and external screw thread, the internal thread and external screw thread
Pitch it is identical, oppositely oriented, head cap portion processing annular knurl, the latch segment one includes head and afterbody, and head is provided with and adjusted
The external screw thread that the internal thread of section screw matches, latch segment two include body and opening portion, and opening portion is provided with and regulation spiral shell
The internal thread that the external screw thread of nail matches, the fixed block are fixed on instrument, are arranged at the outside of latch segment two, for lock
Tight block two is oriented to, and the hole for passing through adjusting screw is additionally provided with fixed block.
As a further improvement on the present invention, the afterbody of the latch segment one is provided with the projection for guiding, latch segment
Two opening portion is provided with the groove for being used to be oriented to being engaged with the projection of latch segment one.
As a further improvement on the present invention, the latch segment two and fixed block are rectangle, the motion of the adjusting screw
Direction is x directions, and the direction vertical with x directions is y directions, and latch segment two coordinates in y directions and fixed block for gap, fixed block
Inside dimension in x directions is more than external dimensions of the latch segment two in x directions.
Beneficial effects of the present invention are as follows：
It is by locking member stress symmetrically and evenly, correct by the position of locking member when the 1st, locking, axial dipole field will not be produced.
2nd, in the course of work of the instrument after locking, the phenomenon that fine motion walks will not be produced by locking member.
3rd, the size of coupling mechanism force can be adjusted by rotational lock screw, and coupling mechanism force is uniform.
4th, locking device of the invention is easy to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of locking device for precision optical instrument of the invention.
Fig. 2 is a kind of schematic diagram of locking device for precision optical instrument of the invention.
Fig. 3 is the side view of latch segment one.
Fig. 4 is the top view of latch segment one.
Fig. 5 is the side view of latch segment two.
Fig. 6 is the top view of latch segment two.
Fig. 7 is the structure chart of adjusting screw.
In figure：1st, optical tubes；2nd, latch segment one；3rd, adjusting screw；4th, latch segment two；5th, fixed block；6th, head；7th, tail
Portion；8th, it is raised；9th, body；10th, opening portion；11st, groove；12nd, head cap portion；13rd, threaded portion.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
A kind of locking device for precision optical instrument of the invention is preferable to carry out structure as shown in figure 1, including regulation
Screw 3, latch segment 1, latch segment 24 and fixed block 5.The structure of adjusting screw 3 is as shown in fig. 7, comprises head cap portion 12 and spiral shell
Line portion 13, threaded portion 13 are provided with internal thread and external screw thread, and internal thread is identical, oppositely oriented with externally threaded pitch.Head cap portion
12 are machined with annular knurl, and as shown in Figure 3 and Figure 4, including head 6 and afterbody 7, head 6 are provided with and adjusted the structure of latch segment 1
The external screw thread that the internal thread of screw 3 matches.The structure of latch segment 24 as shown in Figure 5 and Figure 6, including body 9 and opening portion
10, opening portion 10 is provided with the internal thread to match with the external screw thread of adjusting screw 3.Fixed block 5 is fixed on instrument, is arranged at
The outside of latch segment 24, for being oriented to latch segment 24, the hole for passing through adjusting screw 3 is additionally provided with fixed block 5.Locking
The afterbody 7 of block 1 is provided with the projection 8 for guiding, and the opening portion 10 of latch segment 24 is provided with the projection 8 with latch segment 1
The groove 11 for being used to be oriented to being engaged.Latch segment 24 and fixed block 5 are rectangle, and the direction of motion of adjusting screw 3 is x directions,
The direction vertical with x directions is y directions, and latch segment 24 coordinates in y directions and fixed block 5 for gap, and fixed block 5 is in x directions
Inside dimension is more than external dimensions of the latch segment 24 in x directions.
A kind of operation principle of locking device for precision optical instrument of the invention is as shown in Figure 2.P1、P2Two sections of screw threads
It is oppositely oriented, the identical (P of pitch1=P2).When adjusting screw 3 rotates φ angles, latch segment 1 is moved along X negative directions, and it is moved
Distance be：Latch segment 24 moves along X positive directions, and its move distance is：Wherein P1、P2Point
Not Wei latch segment 1 and latch segment 24 pitch, z is helical head number.L can be obtained by above formula1=l2。
A kind of course of work of locking device for precision optical instrument of the invention is as follows：
When the locking device of the present invention is assembled on optical instrument, fixed block 5 is not fixed first, so that whole locking device
It can be moved freely relative to optical instrument along the positive negative directions of X, then turning adjusting screw 3, while adjust whole locking device
Position, until locking device can lock lens barrel.Now, fixed block 5 is fixed on instrument, then opposite direction rotation regulation spiral shell 3,
Latch segment 1 and latch segment 24 unclamp lens barrel with same speed.Now, latch segment 1, latch segment 24 and optical tubes 1
Between leave identical gap.
When not locking, identical gap is left between latch segment 1, latch segment 24 and optical tubes 1.After the completion of focusing,
Turning adjusting screw 3, then latch segment 1 moved along X negative directions, latch segment 24 moves along X positive directions, two latch segments simultaneously with
Same speed compresses optical tubes 1, lens barrel is realized locking in the case of no axial dipole field.So, optical tubes 1 is same
When acted on simultaneously by two axially symmetric power.It is accurate by locking member position during locking, axial dipole field will not occur.
The appearance profile state of latch segment 24, fixed block 5, the function of the present invention is not influenceed, could be arranged to square, circle
Shape, ellipse etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.All essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (3)
- A kind of 1. locking device for precision optical instrument, it is characterised in that：Including adjusting screw (3), latch segment one (2), Latch segment two (4), fixed block (5), the adjusting screw (3) include head cap portion (12) and threaded portion (13), and threaded portion (13) are set Internal thread and external screw thread are equipped with, the internal thread is identical, oppositely oriented with externally threaded pitch, and the latch segment one (2) includes Head (6) and afterbody (7), head (6) are provided with the external screw thread to match with the internal thread of adjusting screw (3), latch segment two (4) Including body (9) and opening portion (10), opening portion (10) are provided with the interior spiral shell to match with the external screw thread of adjusting screw (3) Line, the fixed block (5) are fixed on instrument, are arranged at the outside of latch segment two (4), for being oriented to latch segment two (4), Gu Determine to be additionally provided with the hole for passing through adjusting screw (3) on block (5).
- A kind of 2. locking device for precision optical instrument according to claim 1, it is characterised in that：The latch segment The afterbody (7) of one (2) is provided with the projection (8) for guiding, and the opening portion (10) of latch segment two (4) is provided with and latch segment one (2) groove (11) for being used to be oriented to that projection (8) is engaged.
- A kind of 3. locking device for precision optical instrument according to claim 1 or 2, it is characterised in that：The lock Tight block two (4) and fixed block (5) are rectangle, and the direction of motion of the adjusting screw (3) is x directions, the direction vertical with x directions For y directions, latch segment two (4) coordinates in y directions and fixed block (5) for gap, and inside dimension of the fixed block (5) in x directions is big In external dimensions of the latch segment two (4) in x directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017498.3A CN105402216B (en) | 2015-12-29 | 2015-12-29 | A kind of locking device for precision optical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017498.3A CN105402216B (en) | 2015-12-29 | 2015-12-29 | A kind of locking device for precision optical instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402216A CN105402216A (en) | 2016-03-16 |
| CN105402216B true CN105402216B (en) | 2017-12-05 |
Family
ID=55467907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511017498.3A Active CN105402216B (en) | 2015-12-29 | 2015-12-29 | A kind of locking device for precision optical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402216B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802950B (en) * | 2018-05-07 | 2021-06-29 | 佛山市三水力达精密金属制品有限公司 | Focusing locking structure on precision optical instrument |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE332445T1 (en) * | 2002-09-03 | 2006-07-15 | Emerson Appliance Motors Europe | CENTRIFUGAL PUMP FOR HOUSEHOLD APPLIANCES |
| CN101246249A (en) * | 2007-02-13 | 2008-08-20 | 中国科学院上海技术物理研究所 | Three-dimensional regulating mechanism for fixing offsetting image rotation K mirror of spacing remote sensing instrument |
| CN204082844U (en) * | 2014-07-22 | 2015-01-07 | 潘天银 | A kind of high-strength bolt |
| CN105093463B (en) * | 2015-09-17 | 2018-04-03 | 天津港东科技发展股份有限公司 | A kind of stand for optical lens |
-
2015
- 2015-12-29 CN CN201511017498.3A patent/CN105402216B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402216A (en) | 2016-03-16 |
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