CN108273806B - A kind of laser cleaning equipment camera lens and laser cleaning equipment - Google Patents
A kind of laser cleaning equipment camera lens and laser cleaning equipment Download PDFInfo
- Publication number
- CN108273806B CN108273806B CN201810317534.5A CN201810317534A CN108273806B CN 108273806 B CN108273806 B CN 108273806B CN 201810317534 A CN201810317534 A CN 201810317534A CN 108273806 B CN108273806 B CN 108273806B
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- Prior art keywords
- convex lens
- pedestal
- microscope base
- fixedly connected
- lens
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The invention belongs to laser cleaning fields, are in particular a kind of laser cleaning equipment camera lens and laser cleaning equipment, can be with zoom and the accurately image in larger size, compact-sized, miniature portable.The hole for allowing laser to pass through is provided on mirror head outer shell body, mirror head outer shell body is fixedly connected on the upper end in the outside of the pedestal；The upper surface of pedestal is provided with sliding slot, and sliding slot runs through the upper surface of the pedestal, and the length of sliding slot is less than the length of pedestal；Convex lens microscope base is slidably connected with sliding slot, and the lower end of convex lens microscope base is located at the inside of pedestal and is fixedly connected on lens focusing device, and lens focusing device is fixedly connected on the inside of pedestal；Galvanometer microscope base is fixedly connected on the upper end in the outside of pedestal, and laser sensor is fixedly connected on pedestal；It is fixed with galvanometer on galvanometer microscope base, is fixed with convex lens on convex lens microscope base, the output end that convex lens microscope base is located at galvanometer microscope base laser first pass through galvanometer to pass through convex lens again.
Description
Technical field
The invention belongs to laser cleaning fields, are in particular that a kind of laser cleaning equipment camera lens and laser cleaning are set
It is standby.
Background technique
The precision of laser cleaning is higher, and corresponding problem is only in the very narrow range of the near focal point of output laser
Optimal cleaning effect could be obtained, existing laser cleaning equipment is preferable for some flat surface adaptability, but for
The cleaning metal surface effect of out-of-flatness is bad.
For such defect, there is the following two kinds solution at present: one, varifocal liquid zoom being added in the optical path
Camera lens realizes zoom；Two, the height for changing cleaning platform adjusts part to be cleaned and saturating distance between mirrors.Chinese invention patent one kind is certainly
Dynamic zoom laser cleaning head device and its cleaning method, the patent No. 201710744791.2 disclose one kind and are added in the optical path
Varifocal liquid zoom lens realize the device of zoom.The autozoom laser cleaning head includes a laser generator, described
Direction of travel on rear side of laser generator along light beam is successively arranged cut-off mirror, protective glass and galvanometer, cut-off mirror and protective glass it
Between be equipped with a beam expanding lens, between protective glass and galvanometer be equipped with a liquid zoom lens, the direction of travel along light beam is after galvanometer
Side is equipped with focus lamp.A kind of liftable cleaning platform component of Chinese invention patent and its laser cleaning equipment, the patent No.
201610605007.5, the height for disclosing a kind of change cleaning platform adjusts the device of part to be cleaned Yu saturating distance between mirrors.It should
Liftable cleaning platform component includes cleaning platform, cleaning platform installation pedestal, fluctuating orbit, overhang roll and elevator drive machine
Structure, cleaning platform are mounted in the cleaning platform installation pedestal；Cleaning platform installation pedestal is slidably disposed in lift rail
On road, to drive cleaning platform to rise or fall；The two sides of cleaning platform are arranged in overhang roll, and overhang roll is for supporting pole piece
On the cleaning platform；Lift drive mechanism is connect with cleaning platform pedestal, and lift drive mechanism is for driving the cleaning
Stage+module pedestal slides on the fluctuating orbit.
If adjusting the distance of cleaning platform, not applicable for small portable apparatus, small device can be not provided with
Greatly even without cleaning platform, for realizing the cleaning of large-scale non-dismountable equipment part part, usually by laser cleaning equipment
It is fixed on specific position to be cleaned, immovable cleaning platform.It is excessively high to lens requirement for liquid zoom lens,
Use condition is limited.
The present invention provides a kind of laser cleaning equipment camera lens and laser cleaning equipment, camera lens are internally provided with special size
Convex lens, can in larger size accurately image, be furthermore provided with lens focusing device to realize zoom.
Summary of the invention
It, can be with the invention mainly solves the technical problem of providing a kind of laser cleaning equipment camera lens and laser cleaning equipment
Zoom and the accurately image in larger size, compact-sized, miniature portable.
In order to solve the above technical problems, a kind of laser cleaning equipment camera lens of the present invention is by mirror head outer shell body, pedestal, convex lens
Microscope base, galvanometer microscope base, laser sensor and formed for changing the lens focusing device of convex lens microscope base position, can with zoom and
The accurately image in larger size, compact-sized, miniature portable.
The hole for allowing laser to pass through is provided on the mirror head outer shell body, the mirror head outer shell body is fixedly connected on the pedestal
Outside upper end；
The upper surface of the pedestal is provided with sliding slot, and the sliding slot runs through the upper surface of the pedestal, the length of the sliding slot
Degree is less than the length of the pedestal；
The convex lens microscope base is slidably connected with the sliding slot, and the lower end of the convex lens microscope base is located at the interior of the pedestal
Side is simultaneously fixedly connected on the lens focusing device, and the lens focusing device is fixedly connected on the inside of the pedestal；
The galvanometer microscope base is fixedly connected on the upper end in the outside of the pedestal, and the laser sensor is fixedly connected on institute
It states on pedestal；
It is fixed with galvanometer on the galvanometer microscope base, convex lens, the convex lens microscope base are fixed on the convex lens microscope base
Make laser first pass through the galvanometer positioned at the output end of the galvanometer microscope base and passes through the convex lens again.The lower end half-wavelength
Energy converter is located at the underface of the upper end half-wave length transducer.
As advanced optimizing for the technical program, convex lens mirror surface described in a kind of laser cleaning equipment camera lens of the present invention
Curved surface meet following equation,
If S is the section of the convex lens, using the left side plane of the convex lens as Y-axis, by left side plane midpoint and
Vertical left side plane is X-axis, establishes the restriction coordinate system of the convex lens,
Assuming that any one light for being parallel to X-axis and the convex lens meet at Px, at y point, if the convex lens is opposite
It is n in the refractive index of air, the light for being parallel to X-axis meets at c point with X-axis after convex lens refraction, limits coordinate system
Origin o and the distance between c point be L, then have
Wherein, C is constant.
As advanced optimizing for the technical program, lens focusing described in a kind of laser cleaning equipment camera lens of the present invention is filled
It sets and is made of encoder, mounting base, screw drive seat, nut block, screw rod, motor, retarder, shaft coupling I and shaft coupling II,
The motor is fixedly connected in the mounting base, and the output shaft of the motor connects described subtract by the shaft coupling I
The output shaft of fast device, the retarder connects the screw rod by the shaft coupling II, and the screw rod is rotatably connected on the spiral shell
In bar retainer, the lower thread of the nut block is connected on the screw rod, and the upper end of the nut block is fixedly connected described
Convex lens microscope base, the encoder are fixedly connected on the outside on the screw rod and being located at the screw drive seat, the deceleration
Device and screw drive seat are fixedly connected in the mounting base, and the mounting base is fixedly connected on the inside of the pedestal.
A kind of laser cleaning equipment, including laser cleaning equipment camera lens described above.
A kind of laser cleaning equipment camera lens of the present invention and having the beneficial effect that for laser cleaning equipment can be with zooms and larger
Accurately image in size, compact-sized, miniature portable.
Detailed description of the invention
The present invention will be further described in detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is a kind of structural schematic diagram of laser cleaning equipment camera lens of the present invention.
Fig. 2 is that a kind of laser cleaning equipment camera lens of the present invention removes the structural schematic diagram after mirror head outer shell body.
Fig. 3 is the structural schematic diagram of lens focusing device in a kind of laser cleaning equipment camera lens of the present invention.
Fig. 4 is a kind of restriction coordinate system of the convex lens of laser cleaning equipment camera lens of the present invention.
In figure: mirror head outer shell body 1；Pedestal 2；Sliding slot 2-1；Convex lens microscope base 3；Galvanometer microscope base 4；Laser sensor 5；Camera lens
Focus control 6；Encoder 6-1；Mounting base 6-2；Screw drive seat 6-3；Nut block 6-4；Screw rod 6-5；Motor 6-6；Slow down
Device 6-7；I 6-8 of shaft coupling；II 6-9 of shaft coupling.
Specific embodiment
Illustrate present embodiment below with reference to Fig. 1,2,3,4, being fixedly connected with mode described in present embodiment can be
It the common connection type such as is bolted or welds, can be selected according to the actual situation.
A kind of laser cleaning equipment camera lens of the present invention by mirror head outer shell body 1, pedestal 2, convex lens microscope base 3, galvanometer microscope base 4,
Laser sensor 5 and for changing 3 position of convex lens microscope base lens focusing device 6 form, can be with zoom and in larger size
Interior accurately image, compact-sized, miniature portable.
The hole for allowing laser to pass through is provided on the mirror head outer shell body 1, the mirror head outer shell body 1 is fixedly connected on the bottom
The upper end in the outside of seat 2；
The upper surface of the pedestal 2 is provided with sliding slot 2-1, and the sliding slot 2-1 runs through the upper surface of the pedestal 2, described
The length of sliding slot 2-1 is less than the length of the pedestal 2, i.e., not completely across pedestal 2, one end of pedestal 2 does not have the described sliding slot 2-1
There is sliding slot 2-1；
The convex lens microscope base 3 is slidably connected with the sliding slot 2-1, to guarantee that convex lens microscope base 3 can be in sliding slot 2-1
Interior sliding adjusts the distance between convex lens and galvanometer to adjust the distance between convex lens microscope base 3 and galvanometer microscope base 4.
The lower end of the convex lens microscope base 3 is located at the inside of the pedestal 2 and is fixedly connected on the lens focusing device 6, described
Lens focusing device 6 is fixedly connected on the inside of the pedestal 2；Lens focusing device 6 can drive convex lens microscope base 3 in sliding slot
The position of convex lens microscope base 3 is slided and fixed in 2-1, to adjust the distance between convex lens and galvanometer, realizes zoom.For
The cleaning for realizing large-scale non-dismountable equipment part part, is usually fixed on specific position for laser cleaning equipment and cleans,
Immovable cleaning platform, but the present apparatus is not necessarily to cleaning platform, can be realized by mobile convex lens zoom, it is applied widely.
The galvanometer microscope base 4 is fixedly connected on the upper end in the outside of the pedestal 2, and the laser sensor 5 is fixedly connected
On the pedestal 2；
It is fixed with galvanometer on the galvanometer microscope base 4, convex lens, the convex lens mirror are fixed on the convex lens microscope base 3
The output ends that seat 3 is located at the galvanometer microscope base 4 laser first pass through the galvanometer to pass through the convex lens again.And convex lens
The positional relationship of microscope base 3 and galvanometer microscope base 4, which meets the laser after galvanometer, can be transferred on convex lens and by after convex lens
It is irradiated on the object for needing to clean.
The curved surface of the convex lens mirror surface meets following equation,
If S is the section of the convex lens, using the left side plane of the convex lens as Y-axis, by left side plane midpoint and
Vertical left side plane is X-axis, establishes the restriction coordinate system of the convex lens,
Assuming that any one light for being parallel to X-axis and the convex lens meet at Px, at y point, if the convex lens is opposite
It is n in the refractive index of air, the light for being parallel to X-axis meets at c point with X-axis after convex lens refraction, limits coordinate system
Origin o and the distance between c point be L, then have
Wherein, C is constant.It crosses P point and makees tangent line of the section S of convex lens at Px, y point and be denoted as L1, normal is denoted as L2.Together
When incident ray and the angle of L2 be denoted as θ, the angle between refracted light PC and L2 is
Firstly, from the law of refraction:
Set the slope of L1 again as k, then since L2 is perpendicular to L1, obtain: the slope of L2 is -1/k, and by tan θ=- 1/k, then 1
Formula turns to:
OX=x, XP=y are known by coordinate relationship at this time, if OC=L, at this time we assume that L is a definite value, and due to Px,
The arbitrariness of y point, then the equation about L that will be obtained is meant that after any directional light is incident can be since refraction deviation be to same
Point C.
From plane geometry knowledge:
ThenEquation (2) are substituted into obtain:
N=(L-x)/(y2+ (L-x)2)1/2+(-k)*y/(y2+(L-x)2)1/2 (3)
Due toEquation (3) abbreviation is substituted into obtain:
In summary content obtains: in n > 1, L > 0, and under the premise of n, L are definite value, equationThe stringent absolute convergence for directional light may be implemented in corresponding convex lens.
Mathematical is carried out to the equation:
It and is definite value.
Ignore L, 0 this point, transformation equation form:
It is rightThe right and left is obtained with multiplied by dx:
Ndx=((L-x) dx-ydy)/(y2+(L-x)2)1/2
- ndx=((x-L) dx+ydy)/(y2+(L-x)2)1/2
=(x-L) dx/ (y2+(L-x)2)1/2+ydy/(y2+(L-x)2)1/2
=d ((y2+(L-x)2)1/2)
Both sides integrate simultaneously:
- nx+C=(y2+(L-x)2)1/2
That is the equation that convex lens section S should meet are as follows:
- nx+C=(y2+(L-x)2) 1/2, wherein L > 0, n > 1, and be definite value.
The equation is further processed, is obtained:
Work as C, when L takes desired value, this equation indicates a hyperbola.Observation equation form simultaneously, obtains Hyperbolic Equation
There is (a n between real axis length and imaginary axis length2- 1) 1/2 conversion coefficient.
Simultaneously by hyp property, obtaining this conversion coefficient indicates the slope of hyperbola asymptote, can further obtain:
When n tends to infinity, this hyp asymptote will be close to y-axis.By reversibility of optical path, issued to the left from this x=L
It will be strictly converted into directional light with light of the X-axis in certain angular range, and the range of this angle is two asymptotes
Between angle, size is dependent on this conversion coefficient.When n is sufficiently large, issued by the point space to the left
Nearly all light all will strictly be converted into directional light.
Therefore, when the curved surface of convex lens meets equation:
When, can solve first-order theory the technology of accurately image can only be asked due to the limitation by near-axial condition in lesser size
Topic, so as to the accurately image in biggish size, so that device compact-sized, miniature portable.
The lens focusing device 6 is by encoder 6-1, mounting base 6-2, screw drive seat 6-3, nut block 6-4, screw rod
6-5, motor 6-6, retarder 6-7, I 6-8 of shaft coupling and II 6-9 of shaft coupling composition, the motor 6-6 are fixedly connected on institute
It states on mounting base 6-2, the output shaft of the motor 6-6 is described to subtract by the I 6-8 connection of the shaft coupling retarder 6-7
The output shaft of fast device 6-7 is rotatably connected on the spiral shell by II 6-9 connection of shaft coupling the screw rod 6-5, the screw rod 6-5
In bar retainer 6-3, the lower thread of the nut block 6-4 is connected on the screw rod 6-5, the upper end of the nut block 6-4
It is fixedly connected with the convex lens microscope base 3, the encoder 6-1 is fixedly connected on the screw rod 6-5 and is located at the screw rod and passes
The outside of dynamic seat 6-3, the retarder 6-7 and screw drive seat 6-3 are fixedly connected on the mounting base 6-2, the peace
Dress seat 6-2 is fixedly connected on the inside of the pedestal 2.When needing to focus, by control motor 6-6 rotation, thus through
Crossing after retarder 6-7 slows down drives screw rod 6-5 to rotate in screw drive seat 6-3, so that nut block 6-4 is driven to move left and right,
Its principle is lead screw transmission principle.Encoder 6-1 selects existing rotary encoder in the market, for acquiring each moment
Rotary speed information carries out PID control by computer disposal to guarantee the accuracy of movement, and it is mobile that realization accurately controls convex lens
Carry out zoom.
A kind of laser cleaning equipment, including above-mentioned laser cleaning equipment camera lens.
The principle of a kind of laser cleaning equipment camera lens and laser cleaning equipment is:
When the laser that existing laser generation device issues is clear by that can be irradiated to needs by convex lens after galvanometer
The body surface washed cleans body surface using existing laser cleaning principle.When needing the body surface that cleans not
When smooth, it is necessary to change the position of convex lens constantly according to the distance between body surface and convex lens to realize change
Coke obtains cleaning object surface with more preferable.During zoom, first pass through laser sensor 5 measure laser sensor 5 with
The distance between body surface and the position for initializing convex lens, according between convex lens and laser sensor 5 when initialization
Distance and the distance between laser sensor 5 and body surface to by computer calculate convex lens and body surface it
Between distance.Then PID control is carried out by computer, realizes the accurate zoom of convex lens, and clear using the laser after zoom
The different surfaces of washing body, so that the surface of each part of object reaches good cleaning effect.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (3)
1. a kind of laser cleaning equipment camera lens, it is characterised in that: the laser cleaning equipment camera lens is by mirror head outer shell body (1), pedestal
(2), convex lens microscope base (3), galvanometer microscope base (4), laser sensor (5) and the camera lens for changing convex lens microscope base (3) position
Focus control (6) composition；
The hole for allowing laser to pass through is provided on the mirror head outer shell body (1), the mirror head outer shell body (1) is fixedly connected on the bottom
The upper end in the outside of seat (2)；
The upper surface of the pedestal (2) is provided with sliding slot (2-1), and the sliding slot (2-1) runs through the upper surface of the pedestal (2),
The length of the sliding slot (2-1) is less than the length of the pedestal (2)；
The convex lens microscope base (3) is slidably connected with the sliding slot (2-1), and the lower end of the convex lens microscope base (3) is located at described
The inside of pedestal (2) is simultaneously fixedly connected on the lens focusing device (6), and the lens focusing device (6) is fixedly connected on
The inside of the pedestal (2)；
The galvanometer microscope base (4) is fixedly connected on the upper end in the outside of the pedestal (2), and the laser sensor (5) is fixed to be connected
It connects on the pedestal (2)；
It is fixed with galvanometer on the galvanometer microscope base (4), convex lens, the convex lens mirror are fixed on the convex lens microscope base (3)
The output end that seat (3) is located at the galvanometer microscope base (4) laser first pass through the galvanometer to pass through the convex lens again；
The curved surface of the convex lens mirror surface meets following equation:
If S is the section of the convex lens, using the left side plane of the convex lens as Y-axis, by left side plane midpoint and vertically
Left side plane is X-axis, establishes the restriction coordinate system of the convex lens,
Assuming that any one light for being parallel to X-axis and the convex lens are met at P (x, y) point, if the convex lens relative to
The refractive index of air is n, and the light for being parallel to X-axis meets at c point with X-axis after convex lens refraction, limits coordinate system
The distance between origin o and c point are L, then have
Wherein, C is constant.
2. a kind of laser cleaning equipment camera lens according to claim 1, it is characterised in that: the lens focusing device
(6) by encoder (6-1), mounting base (6-2), screw drive seat (6-3), nut block (6-4), screw rod (6-5), motor (6-
6), retarder (6-7), shaft coupling I (6-8) and shaft coupling II (6-9) composition, the motor (6-6) are fixedly connected on described
In mounting base (6-2), the output shaft of the motor (6-6) connects the retarder (6-7) by the shaft coupling I (6-8),
The output shaft of the retarder (6-7) connects the screw rod (6-5) by the shaft coupling II (6-9), and the screw rod (6-5) turns
Dynamic to be connected in the screw drive seat (6-3), the lower thread of the nut block (6-4) is connected on the screw rod (6-5),
The upper end of the nut block (6-4) is fixedly connected with the convex lens microscope base (3), and the encoder (6-1) is fixedly connected on described
Outside on screw rod (6-5) and positioned at the screw drive seat (6-3), the retarder (6-7) and screw drive seat (6-3) are equal
It is fixedly connected on the mounting base (6-2), the mounting base (6-2) is fixedly connected on the inside of the pedestal (2).
3. a kind of laser cleaning equipment, including the laser cleaning equipment camera lens as described in any one of claim 1 to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317534.5A CN108273806B (en) | 2018-04-10 | 2018-04-10 | A kind of laser cleaning equipment camera lens and laser cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317534.5A CN108273806B (en) | 2018-04-10 | 2018-04-10 | A kind of laser cleaning equipment camera lens and laser cleaning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108273806A CN108273806A (en) | 2018-07-13 |
| CN108273806B true CN108273806B (en) | 2019-12-03 |
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| CN201810317534.5A Expired - Fee Related CN108273806B (en) | 2018-04-10 | 2018-04-10 | A kind of laser cleaning equipment camera lens and laser cleaning equipment |
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| CN111229737B (en) * | 2020-01-21 | 2021-04-02 | 青岛理工大学 | Handheld laser cleaning dynamic compensation device |
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| CN105301768B (en) * | 2015-11-24 | 2018-01-09 | 深圳先进技术研究院 | Lens vibrating type laser scanning system |
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