CN104972147A - Cylindrical mirror optical fixed-axis system and method - Google Patents
Cylindrical mirror optical fixed-axis system and method Download PDFInfo
- Publication number
- CN104972147A CN104972147A CN201510354285.3A CN201510354285A CN104972147A CN 104972147 A CN104972147 A CN 104972147A CN 201510354285 A CN201510354285 A CN 201510354285A CN 104972147 A CN104972147 A CN 104972147A
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- cylindrical mirror
- optical
- picture
- centering instrument
- ccd camera
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2414—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces
- B23Q17/2419—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for indicating desired positions guiding the positioning of tools or workpieces by projecting a single light beam
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2428—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring existing positions of tools or workpieces
Abstract
The invention relates to a cylindrical mirror optical fixed-axis system and a cylindrical mirror optical fixed-axis method, wherein the system comprises a posture adjustment tool, a mirror frame, a first optical centrescope, a second optical centrescope, a first CCD (charge coupled device) camera, a second CCD camera, a second PC (personal computer) and a second PC, wherein the posture adjustment tool is fixed on a lathe rotating shaft; the mirror frame is fixed on the posture adjustment tool; a cylindrical mirror is fixed in the mirror frame; the first optical centrescope is positioned at one end of the lathe rotating shaft, and faces towards the plane of the cylindrical mirror; the first optical centrescope is connected with one end of the first CCD camera; and the other end of the first CCD camera is connected with the first PC. In order to solve the technical problems that a current method for determining cylindrical mirror optical axis reference is liable to cause optical element scratch, low in optical-axis reference precision and the like, the cylindrical mirror optical fixed-axis system completely adopts an optical non-contact type measuring mode, so that the coincident accuracy of the optical axis and a mechanical rotary shaft is guaranteed.
Description
Technical field
The invention belongs to optics dead axle field, particularly relate to a kind of system and method determining cylindrical mirror optical axis.
Background technology
Cylindrical mirror is an aspheric special case, has special optical imaging properties.High-precision cylindrical mirror and the application of cylindrical system in line focusing system, motion picture pickup camera lens, laser printer etc. are more and more extensive, and these application need corresponding high-precision means of debuging to ensure the light axis consistency of optical system.
The imaging characteristic of cylindrical mirror: because cylindrical lens is not rotational symmetric, so cylindrical mirror does not have centre of sphere point, only have centre of sphere line.Plane wave also can not form focus through cylindrical lens, and can form a focal line.There is not so-called optical axis in cylindrical mirror in theory, but be that multiple cylindrical mirror combinationally uses in actual applications, require that the plane of each cylindrical mirror is parallel to each other, its intersection is mutually orthogonal, each orthogonal points must point-blank and with the plane orthogonal of cylindrical mirror, all actual cylindrical mirrors debug the virtual optical axis using cylindrical mirror in process.
If cylindrical optical system can not meet as above debug requirement, then cylindrical system optical quality can be caused to decline and even can not use.So the determination of cylindrical mirror optical axis is cylindrical optical system debug in important technology difficult point urgently to be resolved hurrily.
Existing cylindrical mirror axis fixation method is, as shown in Figure 1, comprise lathe gyroaxis 1, pose adjustment frock 2, picture frame 3, cylindrical mirror 4, optical centering instrument 5, CCD camera 6 and PC 7, utilize optical centering instrument 5 to find the auto-collimation reflection image jerk value controlling this cylindrical mirror plane, recycling amesdial 9 controls the variable quantity of cylindrical mirror bus in horizontal and vertical direction, ensures the dead axle precision of cylindrical mirror.
The shortcoming of this method: 1, the method adopts amesdial contact type measurement, and operating process easily scratches cylindrical mirror coated surface; When 2, repeatedly adjusting cylindrical mirror attitude, the reseting precision of contact type measurement cannot ensure, causes accumulated error; 3, determine its optical axis position with cylindrical mirror contour tolerance, plain shaft precision cannot ensure, namely cannot ensure optical accuracy with mechanical precision;
Summary of the invention
Existingly determining that the method for cylindrical mirror optical axis benchmark easily causes the technical problems such as optical element scratches and optical axis reference precision is low to solve, the invention provides a kind of cylindrical mirror optics dead axle processing method and equipment.
Technical solution of the present invention:
Cylindrical mirror optics dead axle system, its special character is: comprise pose adjustment frock, picture frame, the first optical centering instrument, the first optical centering instrument, the first CCD camera, the second CCD camera, the second PC and the second PC;
Described pose adjustment frock is fixed on lathe gyroaxis, described picture frame is fixed in pose adjustment frock, picture frame internal fixtion has cylindrical mirror, described first optical centering instrument is positioned at one end of lathe gyroaxis, and towards the plane of cylindrical mirror, first optical centering instrument is connected with one end of the first CCD camera, and the other end of described first CCD camera is connected with the first PC; Described second optical centering instrument is positioned at the dead ahead of the exit window of picture frame, and the second optical centering instrument is towards the cylinder of cylindrical mirror, and the second optical centering instrument is connected with one end of the second CCD camera, and the other end of described second CCD camera is connected with the second PC.
Cylindrical mirror optics axis fixation method, comprises the following steps:
1] the plane auto-collimation reflection picture point of cylindrical mirror is found:
1.1] the first optical centering instrument is accommodated to position, infinity, send directional light, through the plane reflection of cylindrical mirror, become the picture point on the first optical centering instrument to be the plane auto-collimation reflection picture point of cylindrical mirror;
1.2] the plane auto-collimation found reflection picture point is presented on the first PC by the first CCD camera;
2] the cylindrical mirror focal line picture of cylindrical mirror is found:
The directional light that 2.1 first optical centering instrument send forms cylindrical mirror focal line through cylindrical mirror, second optical centering instrument is accommodated to the focal line position of cylindrical mirror, the picture on the second optical centering instrument is now become to be a cylindrical mirror focal line picture of cylindrical mirror, found a cylindrical mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now cylindrical mirror position L1 of cylindrical mirror focal line picture on the second optical centering instrument;
2.2] turnback is revolved in lathe rotating shaft, second optical centering instrument remains unchanged, the picture on the second optical centering instrument is become to be the quadric cylinder mirror focal line picture of cylindrical mirror, found the quadric cylinder mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now position L2 of cylindrical mirror quadric cylinder mirror focal line picture on the second optical centering instrument;
2.3] the micro eyepiece crosshair of the second optical centering instrument is adjusted in position, (L1+L2)/2;
3] adjust level and the pitch attitude of gesture stability frock, by the first CCD camera viewing plane auto-collimation reflection picture point on the first PC, on the second PC, observe a cylindrical mirror focal line picture and quadric cylinder mirror focal line picture by the second CCD camera simultaneously; Until the movement locus of the auto-collimation reflection picture point of cylindrical mirror gradually becomes stroke roundlet even close to transfixion by drawing great circle, and the center superposition of the center of cylindrical mirror cylindrical mirror focal line picture and quadric cylinder mirror focal line picture and the crosshair of micro eyepiece, now the optical axis of cylindrical mirror overlaps with lathe gyroaxis.
The advantage that the present invention has:
1, the present invention adopts optical non-contact metering system completely, find plane auto-collimation reflection image and the cylinder auto-collimation reflection image (cylinder centre of sphere intersection reflection image) of cylindrical mirror, cylindrical mirror spatial attitude is changed by pose adjustment frock, control the jerk value of two pictures in internal focusing central deviation measuring instrument, ensure the registration accuracy of optical axis and mechanical rotating shaft.
2, plane autocollimatic value reflection image and the cylindrical mirror focal line picture of cylindrical mirror is found by 2 internal focusing central deviation measuring instruments, boring-and-turning mill main shaft also adjusts gesture stability frock plane reflection picture is not rocked, cylindrical mirror focal line is as Rotational Symmetry, its optical axis can be determined (now cylindrical mirror optical axis and lathe spindle overlap), turning structural member region of interest, ensures concentricity and the perpendicularity of itself and optical axis.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing cylindrical mirror dead axle system;
Fig. 2 is the system schematic of cylindrical mirror dead axle of the present invention;
Wherein Reference numeral is: 1-lathe gyroaxis, 2-pose adjustment frock, 3-picture frame, 4-cylindrical mirror, 5-optical centering instrument, 6-CCD camera, 7-PC machine, 8-lathe tool, 9-amesdial, 10-first PC, 11-first CCD camera, 12-first optical centering instrument, 13-second optical centering instrument, 14-second CCD camera, 15-second PC.
Detailed description of the invention
Cylindrical mirror optics dead axle system as shown in Figure 1, comprises pose adjustment frock 2, picture frame 3, first optical centering instrument 12, second optical centering instrument 13, first CCD camera 11, second CCD camera 14, first PC 10 and the second PC 15;
Pose adjustment frock is fixed on lathe gyroaxis 1, picture frame is fixed in pose adjustment frock, picture frame internal fixtion has cylindrical mirror, first optical centering instrument is positioned at one end of lathe gyroaxis, and towards the plane of cylindrical mirror, first optical centering instrument is connected with one end of the first CCD camera, and the other end of described first CCD camera is connected with the first PC; Second optical centering instrument is positioned at the dead ahead of the exit window of picture frame, and the second optical centering instrument is towards the cylinder of cylindrical mirror, and the second optical centering instrument is connected with one end of the second CCD camera, and the other end of described second CCD camera is connected with the second PC.
Cylindrical mirror optics axis fixation method, comprises the following steps:
1] the plane auto-collimation reflection picture point of cylindrical mirror is found:
1.1] the first optical centering instrument is accommodated to position, infinity, become the picture point on the first optical centering instrument to be the plane auto-collimation reflection picture point of cylindrical mirror;
1.2] the plane auto-collimation found reflection picture point is presented on the first PC by the first CCD camera;
2] the cylindrical mirror focal line picture of cylindrical mirror is found:
2.1] the second optical centering instrument is accommodated to the focal line position of cylindrical mirror, the picture on the second optical centering instrument is become to be a cylindrical mirror focal line picture of cylindrical mirror, found a cylindrical mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now cylindrical mirror position L1 of cylindrical mirror focal line picture on the second optical centering instrument;
2.2] turnback is revolved in lathe rotating shaft, second optical centering instrument remains unchanged, the picture on the second optical centering instrument is become to be the quadric cylinder mirror focal line picture of cylindrical mirror, found the quadric cylinder mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now position L2 of cylindrical mirror quadric cylinder mirror focal line picture on the second optical centering instrument;
2.3] the micro eyepiece crosshair of the second optical centering instrument is adjusted in position, (L1+L2)/2, now become the picture on the second optical centering instrument to be the cylindrical mirror focal line picture of cylindrical mirror;
3] adjust level and the pitch attitude of gesture stability frock, by the first CCD camera viewing plane auto-collimation reflection picture point on the first PC, on the second PC, observed the cylindrical mirror focal line picture of cylindrical mirror by the second CCD camera simultaneously; Until the movement locus of the auto-collimation reflection picture point of cylindrical mirror gradually becomes stroke roundlet even close to transfixion by drawing great circle, and the center superposition of the crosshair of the cylindrical mirror focal line picture of cylindrical mirror and micro eyepiece, now the optical axis of cylindrical mirror overlaps with lathe gyroaxis.
4] now the optical axis of cylindrical mirror is determined, namely cylindrical mirror optical axis and smooth turning lathe gyroaxis overlap; Now process cylindrical lens structure frame relative dimensions, ensure that structure cylindrical and cylindrical mirror light shaft coaxle degree are better than 0.007mm, ensure that structure end face and cylindrical mirror optical axis verticality are better than 0.01mm.
Claims (2)
1. cylindrical mirror optics dead axle system, is characterized in that: comprise pose adjustment frock, picture frame, the first optical centering instrument, the first optical centering instrument, the first CCD camera, the second CCD camera, the second PC and the second PC;
Described pose adjustment frock is fixed on lathe gyroaxis, described picture frame is fixed in pose adjustment frock, picture frame internal fixtion has cylindrical mirror, described first optical centering instrument is positioned at one end of lathe gyroaxis, and towards the plane of cylindrical mirror, first optical centering instrument is connected with one end of the first CCD camera, and the other end of described first CCD camera is connected with the first PC; Described second optical centering instrument is positioned at the dead ahead of the exit window of picture frame, and the second optical centering instrument is towards the cylinder of cylindrical mirror, and the second optical centering instrument is connected with one end of the second CCD camera, and the other end of described second CCD camera is connected with the second PC.
2. cylindrical mirror optics axis fixation method, comprises the following steps:
1] the plane auto-collimation reflection picture point of cylindrical mirror is found:
1.1] the first optical centering instrument is accommodated to position, infinity, send directional light, through the plane reflection of cylindrical mirror, become the picture point on the first optical centering instrument to be the plane auto-collimation reflection picture point of cylindrical mirror;
1.2] the plane auto-collimation found reflection picture point is presented on the first PC by the first CCD camera;
2] the cylindrical mirror focal line picture of cylindrical mirror is found:
The directional light that 2.1 first optical centering instrument send forms cylindrical mirror focal line through cylindrical mirror, second optical centering instrument is accommodated to the focal line position of cylindrical mirror, the picture on the second optical centering instrument is now become to be a cylindrical mirror focal line picture of cylindrical mirror, found a cylindrical mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now cylindrical mirror position L1 of cylindrical mirror focal line picture on the second optical centering instrument;
2.2] turnback is revolved in lathe rotating shaft, second optical centering instrument remains unchanged, the picture on the second optical centering instrument is become to be the quadric cylinder mirror focal line picture of cylindrical mirror, found the quadric cylinder mirror focal line picture of cylindrical mirror by the second CCD camera at the second PC, and read the now position L2 of cylindrical mirror quadric cylinder mirror focal line picture on the second optical centering instrument;
2.3] the micro eyepiece crosshair of the second optical centering instrument is adjusted in position, (L1+L2)/2;
3] adjust level and the pitch attitude of gesture stability frock, by the first CCD camera viewing plane auto-collimation reflection picture point on the first PC, on the second PC, observe a cylindrical mirror focal line picture and quadric cylinder mirror focal line picture by the second CCD camera simultaneously; Until the movement locus of the auto-collimation reflection picture point of cylindrical mirror gradually becomes stroke roundlet even close to transfixion by drawing great circle, and the center superposition of the center of cylindrical mirror cylindrical mirror focal line picture and quadric cylinder mirror focal line picture and the crosshair of micro eyepiece, now the optical axis of cylindrical mirror overlaps with lathe gyroaxis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510354285.3A CN104972147B (en) | 2015-06-24 | 2015-06-24 | A kind of cylindrical mirror optics axis fixation method |
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| CN201510354285.3A CN104972147B (en) | 2015-06-24 | 2015-06-24 | A kind of cylindrical mirror optics axis fixation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646812A (en) * | 2016-12-05 | 2017-05-10 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjusting lens optical axis quickly during centering turning process |
| CN109343189A (en) * | 2018-11-21 | 2019-02-15 | 北京遥感设备研究所 | A kind of conformal optics head-shield adhering device and Method of Adjustment |
| CN109470148A (en) * | 2018-12-07 | 2019-03-15 | 哈尔滨工业大学 | Rotating cylindrical surface mirror high resolution stereo visual system and measurement method |
| CN110850549A (en) * | 2019-10-16 | 2020-02-28 | 中国航空工业集团公司洛阳电光设备研究所 | High-precision adjusting method for biaxial symmetric lens |
| CN111103124A (en) * | 2019-12-19 | 2020-05-05 | 中国科学院西安光学精密机械研究所 | Intelligent internal focusing centering method and equipment |
| CN116372671A (en) * | 2023-05-05 | 2023-07-04 | 安徽安步轴承有限公司 | Device and method for turning connecting line of thin-wall angular contact bearing ring by utilizing laser positioning |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646812A (en) * | 2016-12-05 | 2017-05-10 | 中国航空工业集团公司洛阳电光设备研究所 | Method for adjusting lens optical axis quickly during centering turning process |
| CN109343189A (en) * | 2018-11-21 | 2019-02-15 | 北京遥感设备研究所 | A kind of conformal optics head-shield adhering device and Method of Adjustment |
| CN109470148A (en) * | 2018-12-07 | 2019-03-15 | 哈尔滨工业大学 | Rotating cylindrical surface mirror high resolution stereo visual system and measurement method |
| CN110850549A (en) * | 2019-10-16 | 2020-02-28 | 中国航空工业集团公司洛阳电光设备研究所 | High-precision adjusting method for biaxial symmetric lens |
| CN111103124A (en) * | 2019-12-19 | 2020-05-05 | 中国科学院西安光学精密机械研究所 | Intelligent internal focusing centering method and equipment |
| CN116372671A (en) * | 2023-05-05 | 2023-07-04 | 安徽安步轴承有限公司 | Device and method for turning connecting line of thin-wall angular contact bearing ring by utilizing laser positioning |
| CN116372671B (en) * | 2023-05-05 | 2023-09-26 | 安徽安步轴承有限公司 | Device and method for turning connecting line of thin-wall angular contact bearing ring by utilizing laser positioning |
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