CN102012227B - Inclined contact type cavity-adjusting mechanism and method of laser gyro - Google Patents
Inclined contact type cavity-adjusting mechanism and method of laser gyro Download PDFInfo
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- CN102012227B CN102012227B CN2010105613456A CN201010561345A CN102012227B CN 102012227 B CN102012227 B CN 102012227B CN 2010105613456 A CN2010105613456 A CN 2010105613456A CN 201010561345 A CN201010561345 A CN 201010561345A CN 102012227 B CN102012227 B CN 102012227B
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Abstract
The invention relates to an inclined contact type cavity-adjusting mechanism and method of a laser gyro. The cavity-adjusting mechanism is formed by a three-dimensional precision working table and a clamping paw which are connected in series; the entire mechanism is arranged in an inclined manner to obtain the angle of inclination and degree of freedom for the inclined contact type cavity-adjusting method; and the clamping paw is in a V-shaped structure and can position a spherical mirror and realize contact blocking after cavity-adjusting. In the inclined contact type cavity-adjusting method of the laser gyro, the acting force between the spherical mirror and a laser resonator is utilized to realize the stable lamination of two contact blocking surfaces, thus ensuring the parallelism of the contact blocking surfaces and avoiding the situation that the traditional cavity-adjusting method has accidental contact blocking. In the invention, the inclined contact type method is adopted to establish a precision cavity-adjusting mechanism which has the advantages of simple structure, high motion resolution, and good maneuverability and is easy to control.
Description
Technical field
The present invention relates to a kind of laser gyro and transfer chamber mechanism and method.
Technical background
Laser gyro is the desirable device of strap-down inertial navigation system, and especially in military field, laser gyro more occupies critical role.And transfer the chamber is a difficult point in the laser gyro manufacture process.China's laser gyro transfers the chamber assembly technology more backward, mainly adopts manual type for a long time.Transfer the chamber with manual type, very high for operator's experience and skill requirement, labour intensity is big, inefficiency, and, transfer the chamber quality unstable owing to there are uncertain factors such as experience, mood, the output that has seriously restricted product improves and quality control.Chamber length control mirro cavity adjustment method can only be transferred the chamber among a small circle; When laser beam in the loop when the loop center-biased is big, the accent chamber effect of chamber length control mirro was lost efficacy, in addition; The sensitivity of driver-piezoelectric ceramics that this method is used is relevant with temperature; When variation of ambient temperature, its stroke can change, and makes resonant optical path depart from optimum.In recent years the contactless cavity adjustment method of level that occurs is transferred the chamber in can be on a large scale; The depth of parallelism between the spherical mirror resonant cavity optical cement face detects in the process of chamber but owing to being difficult to exchange; So be difficult to realize high depth of parallelism requirement, make the accent chamber efficient of this method and accent chamber difficult quality get a desired effect.
Summary of the invention
The objective of the invention is to defective, provide a kind of inclination contact laser gyro to transfer chamber mechanism and method to the prior art existence, simple and convenient, good operability.
For achieving the above object, design of the present invention is:
The contactless cavity adjustment method depth of parallelism of existing level is difficult to reach requirement, and complex structure, and is wayward.The present invention adopts inclination contact cavity adjustment method; Rely on the spherical mirror self gravitation to solve and transfer the high depth of parallelism requirement in chamber, reduced the two-dimentional rotating mechanism that is used for depth of parallelism adjustment in the contactless cavity adjustment method of level, only need D translation mechanism to satisfy and transfer the chamber needs; Simple in structure, be easy to control.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of inclination contact laser gyro is transferred chamber mechanism, comprises a kind of inclination contact laser gyro accent chamber mechanism, comprises an optical table, a cavity bearing and resonant cavity and the spherical mirror of waiting to transfer the chamber, it is characterized in that:
1) said cavity bearing is fixed on the said optical table, and the upper surface of this cavity bearing and horizontal plane angle do
α, 8.5 o≤
α≤90 o; Settle on the cavity upper surface of support and wait to transfer the resonant cavity in chamber;
2) on said optical table, through a web joint the three-dimensional precision stage that two covers have retaining paw is installed, be respectively applied for the adjustment of accomplishing two said spherical mirrors of station.
The three-dimensional precision stage of said two covers; Every cover worktable is to be fixed on the inclined base by the orthogonal manner series connection by a vertical worktable, a horizontal table and a normal direction worktable in the three-dimensional precision stage of two covers, and this inclined base is fixed on the said optical table through said web joint.
The structure of said retaining paw is: two screws are arranged on the lower end connector of a claw bar; Be connected with said vertical stationary table through screw; And the V-shaped structure in the upper end of claw bar; Can hold the spherical mirror fork, realize spherical mirror in horizontal and vertical location, resonant cavity optical cement face upper edge, but do not have positioning action in optical cement face normal direction.
A kind of inclination contact laser gyro cavity adjustment method adopts said mechanism to transfer the chamber, and it is characterized in that operation steps is following: a) three-dimensional working platform resets; B) on retaining paw, lay spherical mirror, spherical mirror is fitted tightly under action of gravity on the optical cement face of resonant cavity; C) vertical worktable of control and horizontal table drive the horizontal and vertical micromotion of retaining paw along resonant cavity optical cement face, until the optimum that searches out the spherical mirror position; D) the normal direction worktable drives retaining paw near resonant cavity direction micromotion, realizes the optical cement of spherical mirror and resonant cavity; E) three-dimensional working platform turns back to terminal position, accomplishes the assembling of a station spherical mirror.The installation step of another station spherical mirror with above-listed step a) to step e).
The present invention has following conspicuous substantive distinguishing features and advantage compared with prior art: the present invention adopts the inclination contact to transfer chamber mechanism and method, and is simple in structure, and the Motion Resolution rate is high, and control is easy, and operability is good.
Description of drawings
Fig. 1 is the present invention's optical device synoptic diagram to be assembled;
Fig. 2 is that spherical mirror contacts the effect synoptic diagram when adopting the inventive method to transfer the chamber with resonant cavity;
Fig. 3 is the one-piece construction synoptic diagram of an instance of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is a retaining paw structural representation of the present invention.
Embodiment
The preferred embodiments of the present invention accompanying drawings is following;
Embodiment one: referring to Fig. 1, Fig. 2 and Fig. 3, this inclination contact laser gyro is transferred chamber mechanism, comprises an optical table 10, a cavity bearing 4 and resonant cavity 1 and the spherical mirror 2 of waiting to transfer the chamber, it is characterized in that:
1) said cavity bearing 4 is fixed on the said optical table 10, and the upper surface of this cavity bearing 4 and horizontal plane angle do
α, 8.5 o≤
α≤90 o; Settle on cavity bearing 4 upper surfaces and wait to transfer the resonant cavity 1 in chamber;
2) on said optical table 10, through a web joint 9 the three-dimensional precision stage that two covers have retaining paw 3 is installed, be respectively applied for the adjustment of accomplishing two said spherical mirrors 2 of station.
Embodiment two: present embodiment and embodiment one are basic identical; Special feature is: every cover worktable is to be fixed on the inclined base 8 by the orthogonal manner series connection by a vertical worktable 5, a horizontal table 6 and a normal direction worktable 7 in the three-dimensional precision stage of said two covers, and this inclined base 8 is fixed on the said optical table 10 through said web joint 9.The structure of said retaining paw 3 is: two screws are arranged on the lower end connector of a claw bar; Be fixedly connected with said vertical worktable 5 through screw; And the V-shaped structure in the upper end of claw bar; Can hold spherical mirror 2 forks, realize spherical mirror 2 in horizontal and vertical location, resonant cavity 1 optical cement face upper edge, but do not have positioning action in optical cement face normal direction.
Embodiment three: this inclination contact laser gyro cavity adjustment method, and adopt above-mentioned accent chamber mechanism to transfer the chamber, operation steps is: the installation step of a station spherical mirror 2 is: a) three-dimensional working platform 5,6, and 7 reset; B) on retaining paw 3, lay spherical mirror 2, spherical mirror 2 is fitted tightly under action of gravity on the optical cement face of resonant cavity 1; C) Control work platform 5,6 drives the horizontal and vertical micromotion of retaining paw 3 along resonant cavity 1 optical cement face, until the optimum that searches out spherical mirror 2 positions; D) normal direction worktable 7 drives retaining paw 3 near resonant cavity 1 direction micromotion, realizes the optical cement of spherical mirror 2 and resonant cavity 1; E) three-dimensional working platform 5,6, and 7 turn back to terminal position, accomplish the assembling of a station spherical mirror 2.The installation step of another station spherical mirror 2 with above-listed step a) to step e).
Embodiment four: with reference to Fig. 1 and Fig. 3, present embodiment will successively assemble 2, two optical cement faces of spherical mirror place and be defined as station 1 and station 2 respectively on two optical cement faces of optical resonance cavity 1.Its cavity adjustment method and synthesis of mechanism are narrated as follows:
With reference to Fig. 2 and Fig. 3, above-mentioned inclination contact cavity adjustment method is to let the optical cement face of resonant cavity 1 to be assembled and gravity direction keep an angle of inclination
β, promptly resonant cavity 1 becomes with surface level
αAngle is placed.This angle of inclination
βShould guarantee that spherical mirror 2 is close to cavity 1 all the time and do not turn on one's side in three degree of freedom direction translational process, this angular range be 6 o≤
β≤45 o, corresponding
αAngular range be 8.5 o≤
α≤90 o.
With reference to Fig. 3 and Fig. 4, above-mentioned accent chamber mechanism is made up of the three-dimensional precision stage that two covers have retaining paw, is respectively applied for the adjustment of accomplishing two station spherical mirrors 2.Transfer chamber mechanism to comprise 3, one cavity bearings of two retaining paws, 8, one web joints 9 of 7, two inclined base of 6, two normal direction worktable of 5, two horizontal tables of 4, two vertical worktable and an optical table 10.Said retaining paw 3 and vertical 5 terminal connections of worktable; Said cavity bearing 4 is fixed on the optical table 10, and upper surface and horizontal plane angle do
α(8.5 o≤
α≤90 o), resonant cavity 1 is installed on it; Said worktable 5,6,7 is fixed on the inclined base 8 by the orthogonal manner series connection; Said inclined base 8 is fixed on the optical table 10 through web joint 9, and parallel with resonant cavity optical cement face for the end that guarantees retaining paw 3, the installed surface of inclined base 8 needs with surface level one inclination angle is arranged
θ, its angular range 8.5 o≤
θ≤45 o.Said three-dimensional precision stage is composed in series by three intimate one dimension translational worktables; Adopt the transmission of prepressing type precision ball screw, utilize the accurate roller guide guiding of intersecting, adopt step motor drive; Segmentation number through the control step motor driver; Worktable promptly can 10mm/s speed realize rapid movement on a large scale, the precision adjustment in can realizing among a small circle again, its Motion Resolution rate can reach 1 μ m.
With reference to Fig. 5, above-mentioned retaining paw 3 is made of one with connecting link, be fixed on the vertical worktable 5, with spherical mirror 2 for line contact, be assurance lightweight and higher hardness employing duralumin material.Retaining paw 3 drives the translation that spherical mirror 2 is realized three directions; The paw head is made up of V-type and circular arc type two parts; The V-type angle is 60 o; In moving process, spherical mirror 2 is adsorbed on the optical cement face of resonant cavity 1 all the time, and the motion of paw 3 can not change the fit-state of spherical mirror 2 and resonant cavity 1.The circular arc portion height of paw 3 exceeds spherical mirror 2 centers, and after transferring the chamber to accomplish, paw 3 to resonant cavity 1 motion, utilizes the pressure between spherical mirror 2 and the resonant cavity 1 to realize optical cement under the drive of worktable 7.
Claims (2)
1. an inclination contact laser gyro is transferred chamber mechanism, and the resonant cavity (1) and the spherical mirror (2) that comprise an optical table (10), a cavity bearing (4) and wait to transfer the chamber is characterized in that:
A. said cavity bearing (4) is fixed on the said optical table (10), and the upper surface and the horizontal plane angle of this cavity bearing (4) do
α, 8.5 o≤
α≤90 o; Settle on cavity bearing (4) upper surface and wait to transfer the resonant cavity (1) in chamber;
B. on said optical table (10), the three-dimensional precision stage that two covers have retaining paw (3) is installed, is respectively applied for the adjustment of accomplishing two said spherical mirrors of station (2) through a web joint (9);
Every cover worktable is to be fixed on the inclined base (8) by the orthogonal manner series connection by a vertical worktable (5), a horizontal table (6) and a normal direction worktable (7) in the three-dimensional precision stage of said two covers, and this inclined base (8) is fixed on the said optical table (10) through said web joint (9);
The structure of said retaining paw (3) is: two screws are arranged on the lower end connector of a claw bar; Be fixedly connected with said vertical worktable (5) through screw; And the V-shaped structure in the upper end of claw bar; Can hold spherical mirror (2) fork, realize spherical mirror (2) in horizontal and vertical location, resonant cavity (1) optical cement face upper edge, but do not have positioning action in optical cement face normal direction.
2. an inclination contact laser gyro cavity adjustment method adopts inclination contact laser gyro according to claim 1 to transfer chamber mechanism to transfer the chamber, it is characterized in that operation steps is following:
A. the installation step of a station spherical mirror (2) is:
A. three-dimensional working platform (5,6,7) resets;
B. on retaining paw (3), lay spherical mirror (2), spherical mirror (2) is fitted tightly under action of gravity on the optical cement face of resonant cavity (1);
C. Control work platform (5,6) drives the horizontal and vertical micromotion of retaining paw (3) along resonant cavity (1) optical cement face, until the optimum that searches out spherical mirror (2) position;
D. normal direction worktable (7) drives retaining paw (3) near resonant cavity (1) direction micromotion, realizes the optical cement of spherical mirror (2) and resonant cavity (1);
E. three-dimensional working platform (5,6,7) turns back to terminal position, accomplishes the assembling of a station spherical mirror (2);
B. the installation step of another station spherical mirror (2) with the step a among the step A to step e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105613456A CN102012227B (en) | 2010-11-27 | 2010-11-27 | Inclined contact type cavity-adjusting mechanism and method of laser gyro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105613456A CN102012227B (en) | 2010-11-27 | 2010-11-27 | Inclined contact type cavity-adjusting mechanism and method of laser gyro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012227A CN102012227A (en) | 2011-04-13 |
| CN102012227B true CN102012227B (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105613456A Expired - Fee Related CN102012227B (en) | 2010-11-27 | 2010-11-27 | Inclined contact type cavity-adjusting mechanism and method of laser gyro |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454925B (en) * | 2013-09-23 | 2016-02-17 | 上海大学 | Light adjustment System is closed in mechanical shaking laser gyro |
| CN103969030B (en) * | 2014-04-14 | 2016-11-09 | 上海大学 | Contact-type detection for the screening of laser gyro eyeglass |
| CN105222767B (en) * | 2015-09-02 | 2019-02-01 | 上海大学 | The automatic light combination assembly system of laser gyro of view-based access control model detection |
| CN105203091B (en) * | 2015-09-02 | 2018-08-07 | 上海大学 | A kind of laser gyro Dichroic Optical Elements assembly device |
| CN105136169B (en) * | 2015-09-02 | 2019-02-22 | 上海大学 | A kind of laser gyro optical element assembly device |
| CN109186641B (en) * | 2018-08-01 | 2022-03-11 | 中国电子科技集团公司第十一研究所 | Method for manufacturing optical fiber sensor and optical fiber sensor |
| CN111744723B (en) * | 2020-06-22 | 2021-04-02 | 哈尔滨工业大学 | Automatic assembly system for laser gyroscope cavity bushing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1700037A (en) * | 2005-06-14 | 2005-11-23 | 中国科学院上海技术物理研究所 | Translational device in satellite optical remote sensing equipment |
| CN1716456A (en) * | 2005-04-28 | 2006-01-04 | 武汉理工大学 | Nano grade positioning precision one dimension displacement work table |
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2010
- 2010-11-27 CN CN2010105613456A patent/CN102012227B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1716456A (en) * | 2005-04-28 | 2006-01-04 | 武汉理工大学 | Nano grade positioning precision one dimension displacement work table |
| CN1700037A (en) * | 2005-06-14 | 2005-11-23 | 中国科学院上海技术物理研究所 | Translational device in satellite optical remote sensing equipment |
Non-Patent Citations (1)
| Title |
|---|
| 马立，荣伟彬，孙立宁，龚振邦.面向光学精密装配的微操作机器人.《机械工程学报》.2009,第45卷(第2期),280-286. * |
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| CN102012227A (en) | 2011-04-13 |
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