CN105402216A - Locking device for precise optical instrument - Google Patents
Locking device for precise optical instrument Download PDFInfo
- Publication number
- CN105402216A CN105402216A CN201511017498.3A CN201511017498A CN105402216A CN 105402216 A CN105402216 A CN 105402216A CN 201511017498 A CN201511017498 A CN 201511017498A CN 105402216 A CN105402216 A CN 105402216A
- Authority
- CN
- China
- Prior art keywords
- locking
- locking block
- block
- adjusting screw
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a locking device for a precise optical instrument. The locking device comprises an adjusting screw, a locking block I, a locking block II and a fixing block. The adjusting screw is provided with inner threads and external threads; the inner threads and the external threads are the same in thread pitch and different in screwing direction. The head part of the locking block I is provided with external threads matched with the inner threads of the adjusting screw; and the opening part of the locking block II is provided with inner threads matched with the external threads of the adjusting threads. The fixing block is fixed on the instrument and is used for guiding the locking block II. When the locking device disclosed by the invention is used for locking, a locked workpiece is stressed symmetrically and uniformly, so that the locked workpiece cannot deviate in the axial direction; during the working process of the instrument after locking, the locked workpiece cannot generate a slight displacement phenomenon; and the locking force can be adjusted by rotating the locking screw, and the locking force is uniform.
Description
Technical field
The invention belongs to precision optical instrument field, be particularly a kind ofly applied to the locking device of locking after precision optical instrument focusing.
Background technique
In the imaging process of optical system, the relative distance of target object and optical system always changes to some extent, for enabling target object blur-free imaging on the image device at focal plane place, must focus to optical system, namely adjust the distance of image device and optical system, image device is positioned on focal plane.Necessarily with locking device locking after focusing, otherwise the factors such as vibration easily cause and rock or misplace, and the relative position of image device and focal plane is changed, causes imaging unintelligible.
At present, the locking device of optical instrument is hold out against from side extruding the part that is locked by lock screw mostly, so often cause the skew of the part axis that is locked, and then cause the skew of focal position, image device and focal plane to produce angle or relative displacement, cause the problems such as the center of imaging local or overall unintelligible, target object slip chart picture.
Summary of the invention
For the above-mentioned deficiency of prior art, the present invention proposes a kind of locking device for precision optical instrument.Locking device of the present invention is when locking, and the part that makes to be locked is stressed equably from bilateral symmetry, and the part that is locked can not produce fine motion and to walk phenomenon.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of locking device for precision optical instrument, comprise adjusting screw, locking block one, locking block two, fixed block, described adjusting screw comprises head cap portion and screw section, screw section is provided with internal thread and outside thread, described internal thread is identical with externally threaded pitch, rotation direction is contrary, head cap portion processing annular knurl, described locking block one comprises head and afterbody, head is provided with the outside thread matched with the internal thread of adjusting screw, locking block two comprises main body portion and opening portion, opening portion is provided with the internal thread matched with the outside thread of adjusting screw, described fixed block is fixed on instrument, be arranged at the outside of locking block two, for leading to locking block two, fixed block is also provided with the hole that adjusting screw is passed.
As a further improvement on the present invention, the afterbody of described locking block one is provided with the projection for leading, and the opening portion of locking block two is provided with the groove for leading matched with the projection of locking block one.
As a further improvement on the present invention, described locking block two and fixed block are rectangle, the moving direction of described adjusting screw is x direction, the direction vertical with x direction is y direction, locking block two is Spielpassung in y direction and fixed block, and fixed block is greater than the outside dimensions of locking block two in x direction in the Inner Dimension in x direction.
Beneficial effect of the present invention is as follows:
1, during locking, the part that is locked is symmetrically and evenly stressed, the correct position of the part that is locked, and can not produce axial dipole field.
2, in the working procedure of instrument after locking, the part that is locked can not produce the phenomenon that fine motion walks.
3, the size of coupling mechanism force can be regulated by rotational lock screw, and coupling mechanism force is even.
4, locking device of the present invention is easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of locking device for precision optical instrument of the present invention.
Fig. 2 is the schematic diagram of a kind of locking device for precision optical instrument of the present invention.
Fig. 3 is the side view of locking block one.
Fig. 4 is the plan view of locking block one.
Fig. 5 is the side view of locking block two.
Fig. 6 is the plan view of locking block two.
Fig. 7 is the structural drawing of adjusting screw.
In figure: 1, optical tubes; 2, locking block one; 3, adjusting screw; 4, locking block two; 5, fixed block; 6, head; 7, afterbody; 8, protruding; 9, main body portion; 10, opening portion; 11, groove; 12, head cap portion; 13, screw section.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The preferred enforcement structure of a kind of locking device for precision optical instrument of the present invention as shown in Figure 1, comprises adjusting screw 3, locking block 1, locking block 24 and fixed block 5.As shown in Figure 7, comprise head cap portion 12 and screw section 13, screw section 13 is provided with internal thread and outside thread to the structure of adjusting screw 3, and internal thread is identical with externally threaded pitch, rotation direction is contrary.Head cap portion 12 is processed with annular knurl, and the structure of locking block 1 as shown in Figure 3 and Figure 4, comprises head 6 and afterbody 7, and head 6 is provided with the outside thread matched with the internal thread of adjusting screw 3.The structure of locking block 24 as shown in Figure 5 and Figure 6, comprises main body portion 9 and opening portion 10, and opening portion 10 is provided with the internal thread matched with the outside thread of adjusting screw 3.Fixed block 5 is fixed on instrument, is arranged at the outside of locking block 24, for leading to locking block 24, fixed block 5 is also provided with the hole that adjusting screw 3 is passed.The afterbody 7 of locking block 1 is provided with the projection 8 for leading, and the opening portion 10 of locking block 24 is provided with the groove 11 for leading matched with the projection 8 of locking block 1.Locking block 24 and fixed block 5 are rectangle, the moving direction of adjusting screw 3 is x direction, the direction vertical with x direction is y direction, and locking block 24 is Spielpassung in y direction and fixed block 5, and fixed block 5 is greater than the outside dimensions of locking block 24 in x direction in the Inner Dimension in x direction.
The working principle of a kind of locking device for precision optical instrument of the present invention as shown in Figure 2.P
1, P
2two sections of thread rotary orientations are contrary, the identical (P of pitch
1=P
2).When adjusting screw 3 rotates φ angle, locking block 1 moves along X negative direction, and the distance of its motion is:
locking block 24 moves along X postive direction, and its move distance is:
wherein P
1, P
2be respectively the pitch of locking block 1 and locking block 24, z is helical head number.L can be obtained by above formula
1=l
2.
The working procedure of a kind of locking device for precision optical instrument of the present invention is as follows:
When locking device of the present invention is assembled on optical instrument, first do not fix fixed block 5, thus whole locking device can be moved freely along the positive negative direction of X relative to optical instrument, then turning adjusting screw 3, locking device regulates the position of whole locking device, until can lock lens barrel simultaneously.Now, be fixed on instrument by fixed block 5, then opposite spin regulates spiral shell 3, locking block 1 unclamps lens barrel with locking block 24 with identical speed.Now, locking block 1, leave identical gap between locking block 24 and optical tubes 1.
When not locking, locking block 1, between locking block 24 with optical tubes 1, leave identical gap.After having focused, turning adjusting screw 3, then locking block 1 moves along X negative direction, and locking block 24 moves along X postive direction, and two locking blocks compress optical tubes 1 with identical speed simultaneously, makes lens barrel realize locking when not having axial dipole field.Like this, optical tubes 1 is subject to acting on about two axially symmetrical power simultaneously simultaneously.During locking, the part position that is locked is accurate, axial dipole field can not occur.
The appearance profile state of locking block 24, fixed block 5, does not affect function of the present invention, can be set to square, circular, oval etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the locking device for precision optical instrument, it is characterized in that: comprise adjusting screw (3), locking block one (2), locking block two (4), fixed block (5), described adjusting screw (3) comprises head cap portion (12) and screw section (13), screw section (13) is provided with internal thread and outside thread, described internal thread is identical with externally threaded pitch, rotation direction is contrary, described locking block one (2) comprises head (6) and afterbody (7), head (6) is provided with the outside thread matched with the internal thread of adjusting screw (3), locking block two (4) comprises main body portion (9) and opening portion (10), opening portion (10) is provided with the internal thread matched with the outside thread of adjusting screw (3), described fixed block (5) is fixed on instrument, be arranged at the outside of locking block two (4), for leading to locking block two (4), fixed block (5) is also provided with the hole that adjusting screw (3) is passed.
2. a kind of locking device for precision optical instrument according to claim 1, it is characterized in that: the afterbody (7) of described locking block one (2) is provided with the projection (8) for leading, the opening portion (10) of locking block two (4) is provided with the groove (11) for leading matched with the projection (8) of locking block one (2).
3. a kind of locking device for precision optical instrument according to claim 1 and 2, it is characterized in that: described locking block two (4) and fixed block (5) are rectangle, the moving direction of described adjusting screw (3) is x direction, the direction vertical with x direction is y direction, locking block two (4) is Spielpassung in y direction and fixed block (5), and fixed block (5) is greater than the outside dimensions of locking block two (4) in x direction in the Inner Dimension in x direction.
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 true CN105402216A (en) | 2016-03-16 |
| CN105402216B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802950A (en) * | 2018-05-07 | 2018-11-13 | 东莞市联洲知识产权运营管理有限公司 | A kind of focusing locking mechanism on precision optical instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1396641A2 (en) * | 2002-09-03 | 2004-03-10 | Plaset S.p.A. | Centrifugal pump for electrical 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 |
| CN105093463A (en) * | 2015-09-17 | 2015-11-25 | 天津港东科技发展股份有限公司 | Optical lens bracket |
-
2015
- 2015-12-29 CN CN201511017498.3A patent/CN105402216B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1396641A2 (en) * | 2002-09-03 | 2004-03-10 | Plaset S.p.A. | Centrifugal pump for electrical 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 |
| CN105093463A (en) * | 2015-09-17 | 2015-11-25 | 天津港东科技发展股份有限公司 | Optical lens bracket |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802950A (en) * | 2018-05-07 | 2018-11-13 | 东莞市联洲知识产权运营管理有限公司 | A kind of focusing locking mechanism on precision optical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402216B (en) | 2017-12-05 |
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