CN107598364A - A kind of Laser Processing and focus fixing device and method based on CCD imagings - Google Patents
A kind of Laser Processing and focus fixing device and method based on CCD imagings Download PDFInfo
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- CN107598364A CN107598364A CN201711098885.3A CN201711098885A CN107598364A CN 107598364 A CN107598364 A CN 107598364A CN 201711098885 A CN201711098885 A CN 201711098885A CN 107598364 A CN107598364 A CN 107598364A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 34
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- 238000003754 machining Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 14
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- 238000010276 construction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The present invention relates to technical field of laser processing, in particular discloses a kind of Laser Processing based on CCD imagings and focus fixing device and method.The present apparatus includes laser, beam-expanding system, scanning galvanometer, beam splitting system, focus lamp and focusing system.Laser comes with instruction feux rouges.Beam splitting system is used to instruction feux rouges entering focusing system in the reflected light back of workpiece surface.Focusing system is used to judge focal position and controls focus lamp position to realize focusing.The instruction feux rouges that the present invention is carried using laser, being switched fast for machining state and focus state is realized by the beam splitting system of an adjustable angle；Change imaging definition by directly adjusting focus lamp position, and then realize focusing.Not only small, simple in construction and easily operated to processing light path impact, Focus accuracy is high；Achievable scene focuses, and substantially increases processing efficiency.
Description
Technical field
The application is related to technical field of laser processing, more particularly to a kind of Laser Processing based on CCD imagings and focuses dress
Put and method.
Background technology
Compared to tradition machining, Laser Processing is used as a kind of noncontact procession, and it is without " cutter " abrasion, nothing " cutting
Power " acts on workpiece, has the advantages that energy is high, process velocity is fast, heat affected area is small.Therefore be widely used in Making mold,
The industries such as automobile, Aero-Space, electronic circuit, power and energy and medical instruments and equipment manufacture.In general Laser Processing system
In system, the light beam that laser is sent needs just to can be used for processing after focus lamp converges at a bit (i.e. focus).Laser spot
Distance with working face is defocusing amount, which determines the size of working face laser power density.Defocusing amount selection is improper, not only can
Cause capacity usage ratio low, the waste of the energy；The quality of processing can also be influenceed.Due to different materials to the absorptivity of laser not
Defocusing amount required by same, different process technology is also different, therefore during actual processing, the defocusing amount of system is carried out
Regulation.
Defocusing amount is determined, first has to determine the position of laser spot.Existing focal position determines that method is broadly divided into
Two classes：First, one is burnt on millboard or resin plate from low to high continuously near focal point with low-power continuous laser
Vestige, the thickness for comparing cut change to determine the position of laser spot；Second, with high power pulse laser near focal point by
It is low to high to get keyhole according to certain intervals on steel plate, compare the size of keyhole to determine the position of laser spot.The above two
The complex operation of kind method, measurement accuracy is low, is not suitable for live focusing, greatly reduces processing efficiency.Especially for tool
Have complex-curved structure part or high temperature, the processing environment of high radiation, it is necessary to frequently change defocusing amount and can not be closely
Focusing.
Chinese patent publication No. discloses a kind of swashing with Focus tracking function for the patent of " A of CN 104128332 "
Light cleaning machine, its Focus tracking system include focus measurement unit and feedback display unit, can measure and show that cleaning head is defeated
The distance between the laser spot gone out and workpiece value.But the invention is expired according to the focal length regulation laser power measured
Sufficient process requirements, intuitively can not easily it focus.Chinese patent publication No. discloses one for the patent of " A of CN 103056517 "
Kind of three-dimensional laser cleaning device, the device include one by wave filter, micro-imaging lens, CCD and processor group into focusing
Position control, the Field adjustment of focal position of laser can be achieved.But the invention has the following disadvantages：First, focussing process
In need focus lamp exchanging position with focal position adjustment device, system architecture is complicated and is easily reduced the stability of original optical path；
Second, it is difficult to imaging optical path and processing light path when ensureing that micro-imaging lens are identical with the focal length of focus lamp, and focusing
Form an angle, cause the error in measurement.
The content of the invention
, can not be intuitively convenient to solve device of the prior art this application provides one kind Laser Processing and focus fixing device
And accurately focusing, while realize focusing and the convenient switching of machining state.
In view of this, the invention provides following technical scheme：
One kind Laser Processing and focus fixing device, it is comprised at least：For launching the laser of laser beam；For swashing to described
The beam-expanding system that light beam is expanded and collimated；For the scanning galvanometer for the position for changing the laser beam；For swashing described
The focus lamp that light beam is converged；The laser beam of the laser transmitting is expanded by the beam-expanding system and collimates it
Afterwards, and then change direction by the scanning galvanometer to be focused into the focus lamp 7；The laser is red with indicating
Light；
Described device also includes being used to judge focal position and controls the position of the focus lamp to realize the focusing system of focusing
System；For instruction feux rouges to be entered to the beam splitting system of focusing system in the reflected light back of workpiece surface；The beam splitting system is set
Between the scanning galvanometer and the focus lamp；The beam splitting system includes spectroscope and rotating mechanism；The spectroscope one
End is fixed on the rotating mechanism；
The instruction feux rouges passes sequentially through the beam-expanding system, scanning galvanometer, beam splitting system, focus lamp and reaches workpiece table
Face；
The instruction feux rouges enters the focusing system in the reflected light of workpiece surface by the spectroscope.
Further, the focusing system is made up of optical filter, CCD, processor and displacement controller, the optical filter and
The central coaxial of the CCD is set, and is vertically arranged with the primary optical axis where the laser beam, the CCD and processor electricity
Connection, the processor electrically connect with the displacement controller, and the displacement controller is used for the position for adjusting the focus lamp.
Further, the spectroscope rotates around one end of the rotating mechanism, and the anglec of rotation is 45 °.
Further, the spectroscope realizes transflection to instruction feux rouges by plated film, and transflection ratio is 1:1.
Further, the laser is provided with switch one and switch two；The switch one is described for launching and closing
Indicate feux rouges；The switch two is used to launch and close the laser beam.
Further, the optical filter only allows to indicate that feux rouges passes through.
Further, the beam splitting system has focus state and machining state；When the spectroscope rotate to primary optical axis
It is focus state during angle at 45 °；It is machining state when the spectroscope is parallel with primary optical axis.
One kind laser machines and focused method, it is characterised in that：Comprise the following steps：
Laser transmitting instruction feux rouges；
The instruction feux rouges is expanded and collimated by beam-expanding system；
The instruction feux rouges is scanned through entering beam splitting system after galvanometer changes direction；
The instruction feux rouges is focused into focus lamp；
The instruction feux rouges reaches workpiece surface；
The instruction feux rouges passes through dichroic mirror；
Instruction feux rouges after reflection enters focusing system；
The position of the focusing system regulation focus lamp limits requirement until imaging edge and contrast meet, and completes to adjust
It is burnt；
The instruction red switch closed on laser；
Open the laser beam switch on laser；
Laser sends laser beam；
Into machining state.
Further, before step ' laser transmitting instruction feux rouges ', in addition to step：Open the instruction on laser
Red switch.
Further, ' position of the focusing system regulation focus lamp is until imaging edge and contrast symbol for the step
Close to limit and require, complete focusing ' in, in addition to step：
Instruction feux rouges after reflection filters out veiling glare by optical filter；
The instruction feux rouges is imaged on CCD；
Processor is handled and shown to the imaging；
The processor sends the position of Signal Regulation focus lamp to displacement controller,
The position of displacement controller regulation focus lamp limits requirement until imaging edge and contrast meet, and completes focusing.
The technical scheme that the application provides includes following advantageous effects：The instruction that the present invention is carried using laser is red
Light, it will indicate that feux rouges is imaged on CCD in the reflected light of workpiece surface by the spectroscope of adjustable angle, adjust the position of focus lamp
Putting makes imaging most clear, and now focus is located at workpiece surface, completes focusing.Using spectroscope realize instruction light beam splitting, pair plus
Work light path impact is small, simple in construction；Directly adjust focus lamp position and change imaging definition, and then realize focusing, it is easily operated,
And precision is high；Machining state and focus state switch speed are fast, are independent of each other, and can carry out live focusing, substantially increase processing
Efficiency.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of Laser Processing that the embodiment of the present application provides and focus fixing device；
Fig. 2 is beam splitting system structural representation in a kind of Laser Processing that the embodiment of the present application provides and focus fixing device；
Fig. 3 is a kind of Laser Processing that the embodiment of the present application provides and the flowage structure schematic diagram for focusing method；
Fig. 4 is a kind of Laser Processing that the embodiment of the present application provides and focuses the flow of the focusing system focussing process of method
Structural representation.
Description of reference numerals：
Wherein：1st, laser；2nd, beam-expanding system；3rd, laser beam；4th, scanning galvanometer；5th, feux rouges is indicated；6th, beam splitting system；7、
Focus lamp；8th, focusing system；9th, optical filter；10、CCD；11st, processor；12nd, displacement controller；13rd, spectroscope；14th, whirler
Structure；15th, workpiece surface.
Embodiment
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Embodiment one
Referring to Fig. 1, the embodiments of the invention provide one kind Laser Processing and focus fixing device, it is comprised at least：For launching
The laser 1 of laser beam 3；For the beam-expanding system 2 that the laser beam 3 is expanded and collimated；For changing the laser
The scanning galvanometer 4 of the position of beam；For the focus lamp 7 for being converged the laser beam 3；The laser beam of the laser transmitting
After 3 are expanded and collimated by the beam-expanding system 2, and then direction is changed by the scanning galvanometer 4 and enters described gather
Burnt mirror 7 is focused；The laser 1 is with instruction feux rouges 5；
Described device also includes being used to judge focal position and controls the position of the focus lamp 7 to realize the focusing system of focusing
System 8；For instruction feux rouges 5 to be entered to the beam splitting system 6 of focusing system 8 in the reflected light back of workpiece surface 15；The light splitting system
System 6 is arranged between the scanning galvanometer 4 and the focus lamp 7；The beam splitting system 6 includes spectroscope 13 and rotating mechanism
14；Described one end of spectroscope 13 is fixed on the rotating mechanism 14；
The instruction feux rouges 5 passes sequentially through the beam-expanding system 2, scanning galvanometer 4, beam splitting system 6, focus lamp 7 and reaches work
Part surface 15；
The instruction feux rouges 5 enters the focusing system 8 in the reflected light of workpiece surface 15 by the spectroscope 13.
Specifically, the scanning galvanometer 4 is used to change position of the laser on x/y plane.Beam splitting system 6 is used to refer to
Show that feux rouges 5 enters focusing system 8 in the reflected light back of workpiece surface 15.Focusing system 8 is used to judge focal position and controlled poly-
Realize focusing in position of the burnt mirror 7 in z-axis.
In the present embodiment, the laser 1 carries instruction feux rouges 5, and the instruction feux rouges 5 and laser beam 3 are coaxial.It is described
Beam-expanding system 2 is used for expansion of laser light beam diameter and transforms it into directional light.
The structure of accurate focus fixing device provided in an embodiment of the present invention is introduced further below.
Referring to Fig. 1 and Fig. 2, beam splitting system 6 includes spectroscope 13 and rotating mechanism 14, and one as the present invention is preferred real
Example is applied, the spectroscope 13 is semi-transparent semi-reflecting to instruction feux rouges 5, and transflection ratio is 1:1, its one end is fixed on rotating mechanism 14, energy
It is enough to be rotated around rotary shaft (x-axis) angle at 45 °.Primary optical axis at 45 ° angle of the spectroscope 13 where with laser beam 3, is used for during focusing
The instruction feux rouges 5 that workpiece surface 15 is reflected back is reflected into focusing system 8.
As a preferred embodiment of the present invention, the beam splitting system 6 has focus state and machining state；When described point
It is focus state when the rotation of light microscopic 13 is to angle at 45 ° with primary optical axis；When the spectroscope 13 is parallel with primary optical axis, for processing
State.
As a preferred embodiment of the present invention, the laser 1 is provided with switch one and switch two；The switch one
For launching and closing the instruction feux rouges 5；The switch two is used to launch and close the laser beam 3.
Specifically, when being focused, the rotation of spectroscope 13 is extremely with primary optical axis angle at 45 °, and instruction feux rouges 5 is in workpiece table
The reflected light in face is imaged on CCD10.When workpiece surface 15 is located at the focal plane of focus lamp 7 (plane where focus), side is imaged
Edge is most clear, contrast highest.Otherwise, it is imaged edge blurry, contrast reduces.Now controlled and focused on by displacement controller 12
Mirror 7 moves up and down along the z-axis direction, untill image is most clear, completes focusing.Rotation spectroscope 23 to minute surface and primary optical axis is put down
OK, instruction feux rouges 5 is closed, laser 1 is launched laser beam 3 and starts to process.
Especially, in order to avoid laser beam 3 is by spectroscope 13, after the completion of focusing, the spectroscope 13 rotates around x-axis
45 ° make minute surface parallel with primary optical axis, into machining state.
The instruction feux rouges that this device that the present embodiment provides is carried using laser, passes through the light splitting of an adjustable angle
System realizes being switched fast for machining state and focus state.This device is not only small, simple in construction to processing light path impact,
And it is easily operated, Focus accuracy is high；Achievable scene focuses, and substantially increases processing efficiency.
Embodiment two
On the basis of embodiment one, the present embodiment emphasized describes a kind of Laser Processing provided by the present invention and determined
The composition and function of focusing system in coke installation.
The focusing system (8) is made up of optical filter (9), CCD (10), processor (11) and displacement controller (12), institute
The central coaxial for stating optical filter (9) and the CCD (10) is set, and is vertically arranged with the primary optical axis where the laser beam (3), institute
State CCD to electrically connect with the processor, the processor electrically connects with the displacement controller, and the displacement controller is used to adjust
Save the position of the focus lamp.
Specifically, the optical filter 9 and with the CCD10 in same optical axis, it is and vertical with primary optical axis (z-axis).Work
The instruction feux rouges 5 of part surface reflection enters focusing system 8 after the reflection of spectroscope 13, and optical filter 9 filters out veiling glare, only allows to refer to
Show that feux rouges 5 passes through.Reflected light is imaged by optical filter 9 on CCD10, and processor 11 is handled and shown to image, is passed through
Displacement controller 12 adjusts position of the focus lamp 7 in z-axis, makes that imaging edge is most clear, contrast highest, and now focus is located at
Workpiece surface 15, complete focusing.
As a preferred embodiment of the present invention, the optical filter only allows to indicate that feux rouges passes through.
Specifically, the optical filter 9 in the focusing system 8 is used to filter out veiling glare, only allows to indicate that feux rouges 5 passes through.
So reflected light can be preferably allowed to be imaged by optical filter 9 on CCD10.
In the present embodiment, the operation principle and process that device is accurately focused are as follows：When being focused, spectroscope 13
Rotation is imaged on CCD10 to primary optical axis angle at 45 °, instruction feux rouges 5 in the reflected light of workpiece surface 15.When workpiece surface 15
During positioned at the focal plane of focus lamp 7 (plane where focus), imaging edge is most clear, contrast highest.Otherwise, it is imaged edge mould
Paste, contrast reduce.Now focus lamp 7 is controlled to move up and down along the z-axis direction by displacement controller 12, until image is most clear
Untill, complete focusing.It is parallel with primary optical axis to minute surface to rotate spectroscope 13, closes instruction feux rouges 5, makes the shoot laser of laser 1
Beam 3 starts to process.
Integrated embodiment one and embodiment two, the two states course of work of this device provided by the invention is summarized such as
Under：Focus state：Regulation rotating mechanism 14 makes spectroscope 13 and primary optical axis angle at 45 °.The instruction feux rouges 5 of laser is opened,
Pass sequentially through beam-expanding system 2, scanning galvanometer 4, beam splitting system 6, focus lamp 7 and reach workpiece surface 15, reflect feux rouges mirror spectroscope
Entering focusing system 8 after 13 reflections, processor 11 is handled and shown to imaging on CCD 10, and to displacement controller
12 send position of the Signal Regulation focus lamp 7 in z-axis, until completing focusing when being imaged most clear edge, contrast highest.
Into machining state：Rotating mechanism 14 controls the rotation of spectroscope 13 extremely parallel with primary optical axis, closes instruction feux rouges, swashs
Light device sends laser and is processed.
To sum up, the present embodiment is based on CCD imaging techniques, the instruction feux rouges carried using laser, passes through adjustable angle
Spectroscope will indicate that feux rouges is imaged on CCD in the reflected light of workpiece surface, and regulation focus lamp makes imaging in the position in z-axis direction
Most clear, now focus is located at workpiece surface, completes focusing.
Embodiment three
As shown in figure 3, a kind of laser machine and focus method, it is characterised in that：Comprise the following steps：
Open the instruction red switch on laser；
Laser transmitting instruction feux rouges；
The instruction feux rouges is expanded and collimated by beam-expanding system；
The instruction feux rouges is scanned through entering beam splitting system after galvanometer changes direction；
The instruction feux rouges is focused into focus lamp；
The instruction feux rouges reaches workpiece surface；
The instruction feux rouges passes through dichroic mirror；
Instruction feux rouges after reflection enters focusing system；
The position of the focusing system regulation focus lamp limits requirement until imaging edge and contrast meet, and completes to adjust
It is burnt；
The instruction red switch closed on laser；
Open the laser beam switch on laser；
Laser sends laser beam；
Into machining state.
Specifically, described limit requires to be during those skilled in the art operate according to routine experimentation, and regulation focus lamp is in Z
Position on axle, until imaging edge is most clear, contrast highest, as optimal focus state, complete focusing.
The Laser Processing that the present embodiment provides is as follows with focusing the operation principle of method：
Focus state：Regulation rotating mechanism 14 makes spectroscope 13 and primary optical axis angle at 45 °.The instruction for opening laser is red
Light 5, pass sequentially through beam-expanding system 2, scanning galvanometer 4, beam splitting system 6, focus lamp 7 and reach workpiece surface 15, reflection feux rouges mirror point
Light microscopic 13 enters focusing system 8 after reflecting, focusing system 8 adjusts position of the focus lamp 7 in z-axis, until imaging edge is most clear
Focusing is completed during clear, contrast highest.
Into machining state：Rotating mechanism 14 controls the rotation of spectroscope 13 extremely parallel with primary optical axis, closes instruction feux rouges, swashs
Light device sends laser and is processed.
Example IV
On the basis of embodiment three, the present embodiment focuses on to describe the step ' position of the focusing system regulation focus lamp
Until imaging edge and contrast meet restriction and required, focusing is completed '.
As shown in figure 4, ' position of the focusing system regulation focus lamp is until imaging edge and contrast symbol for the step
Close to limit and require, complete focusing ' in, in addition to step：
Instruction feux rouges after reflection filters out veiling glare by optical filter；
The instruction feux rouges is imaged on CCD；
Processor is handled and shown to the imaging；
The processor sends the position of Signal Regulation focus lamp to displacement controller,
The position of displacement controller regulation focus lamp limits requirement until imaging edge and contrast meet, and completes focusing.
Specifically, indicate that feux rouges enters focusing system 8 after the reflection of spectroscope 13, the processor in focusing system 8
Imaging is handled and shown on 11 couples of CCD 10, and sends Signal Regulation focus lamp 7 in z-axis to displacement controller 12
Position, until imaging edge is most clear, contrast highest when complete focusing.
Integrated embodiment three and example IV, one kind, which laser machines and focuses method, is based on CCD imaging techniques, utilizes laser
The instruction feux rouges that device carries, machining state is realized by the beam splitting system of an adjustable angle and the quick of focus state cuts
Change；Change imaging definition by directly adjusting focus lamp position, and then realize focusing.Not only, knot small to processing light path impact
Structure is simple, and easily operated, and Focus accuracy is high；Achievable scene focuses, and substantially increases processing efficiency.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation makes a distinction with another entity or operation, and not necessarily requires or imply these entities or exist between operating any
This actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive
Property includes, so that article or equipment including a series of elements not only include those key elements, but also including not having
The other element being expressly recited, or also include for this process, method, article or the intrinsic key element of equipment.Do not having
There is the key element in the case of more limiting, limited by sentence "including a ...", it is not excluded that including the mistake of the key element
Other identical element in journey, method, article or equipment also be present.
Described above is only the embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.A variety of modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
It should be appreciated that the content that the application is not limited to be described above and is shown in the drawings, and can
To carry out various modifications and changes without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (10)
1. one kind Laser Processing and focus fixing device, it is comprised at least：For launching the laser of laser beam；For to the laser
The beam-expanding system that Shu Jinhang is expanded and collimated；For the scanning galvanometer for the position for changing the laser beam；For by the laser
The focus lamp of Shu Jinhang convergences；After the laser beam of the laser transmitting is expanded and collimated by the beam-expanding system,
And then direction is changed by the scanning galvanometer and is focused into the focus lamp；It is characterized in that：The laser carries
Indicate feux rouges；
Described device also includes being used to judge focal position and controls the position of the focus lamp to realize the focusing system of focusing；With
In the beam splitting system that instruction feux rouges is entered to focusing system in the reflected light back of workpiece surface；The beam splitting system is arranged at described
Between scanning galvanometer and the focus lamp；The beam splitting system includes spectroscope and rotating mechanism；Described spectroscope one end is fixed
On the rotating mechanism；
The instruction feux rouges passes sequentially through the beam-expanding system, scanning galvanometer, beam splitting system, focus lamp and reaches workpiece surface；
The instruction feux rouges enters the focusing system in the reflected light of workpiece surface by the spectroscope.
2. a kind of Laser Processing according to claim 1 and focus fixing device, it is characterised in that：The focusing system is by filtering
Piece, CCD, processor and displacement controller composition, the optical filter and the CCD central coaxial are set, with the laser beam
The primary optical axis at place is vertically arranged, and the CCD electrically connects with the processor, and the processor is electrically connected with the displacement controller
Connect, the displacement controller is used for the position for adjusting the focus lamp.
3. a kind of Laser Processing according to claim 1 and focus fixing device, it is characterised in that：The spectroscope is around the rotation
One end rotation of rotation mechanism, the anglec of rotation are 45 °.
4. a kind of Laser Processing according to claim 1 and focus fixing device, it is characterised in that：The spectroscope passes through plated film
Transflection is realized to instruction feux rouges, transflection ratio is 1:1.
5. a kind of Laser Processing according to claim 2 and focus fixing device, it is characterised in that：The laser is provided with and opened
Close one and switch two；The switch one is used to launch and close the instruction feux rouges；The switch two is used to launch and close institute
State laser beam.
6. a kind of Laser Processing according to claim 2 and focus fixing device, it is characterised in that：The optical filter only allows to refer to
Show that feux rouges passes through.
7. a kind of Laser Processing according to claim 3 and focus fixing device, it is characterised in that：The beam splitting system has focusing
State and machining state；It is focus state when the spectroscope is rotated to angle at 45 ° with primary optical axis；When the spectroscope with
It is machining state when primary optical axis is parallel.
8. one kind laser machines and focused method, it is characterised in that：Comprise the following steps：
Laser transmitting instruction feux rouges；
The instruction feux rouges is expanded and collimated by beam-expanding system；
The instruction feux rouges is scanned through entering beam splitting system after galvanometer changes direction；
The instruction feux rouges is focused into focus lamp；
The instruction feux rouges reaches workpiece surface；
The instruction feux rouges passes through dichroic mirror；
Instruction feux rouges after reflection enters focusing system；
The position of the focusing system regulation focus lamp limits requirement until imaging edge and contrast meet, and completes focusing；
The instruction red switch closed on laser；
Open the laser beam switch on laser；
Laser sends laser beam；
Into machining state.
9. one kind according to claim 8 laser machines and focused method, it is characterised in that：In step, ' laser is launched
Indicate feux rouges ' before, in addition to step：Open the instruction red switch on laser.
10. one kind according to claim 9 laser machines and focused method, it is characterised in that：Step ' the focusing
The position of system fading margin focus lamp is until imaging edge and contrast meet restriction requirement, completion focusing ' in, in addition to step：
Instruction feux rouges after reflection filters out veiling glare by optical filter；
The instruction feux rouges is imaged on CCD；
Processor is handled and shown to the imaging；
The processor sends the position of Signal Regulation focus lamp to displacement controller,
The position of displacement controller regulation focus lamp limits requirement until imaging edge and contrast meet, and completes focusing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711098885.3A CN107598364A (en) | 2017-11-09 | 2017-11-09 | A kind of Laser Processing and focus fixing device and method based on CCD imagings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711098885.3A CN107598364A (en) | 2017-11-09 | 2017-11-09 | A kind of Laser Processing and focus fixing device and method based on CCD imagings |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325953A (en) * | 2018-05-18 | 2018-07-27 | 云南电网有限责任公司电力科学研究院 | A kind of away rust by laser unmanned plane |
| CN108581237A (en) * | 2018-05-10 | 2018-09-28 | 华南师范大学 | A kind of method of synthetic leather surface laser processing microwell array |
| CN108838547A (en) * | 2018-07-11 | 2018-11-20 | 云南电网有限责任公司电力科学研究院 | A kind of deflectable laser rust-removing device |
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| CN109798882A (en) * | 2019-02-20 | 2019-05-24 | 中国电子科技集团公司第十一研究所 | Laser transmitting system based on Beam Control |
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| CN108581237A (en) * | 2018-05-10 | 2018-09-28 | 华南师范大学 | A kind of method of synthetic leather surface laser processing microwell array |
| CN108325953A (en) * | 2018-05-18 | 2018-07-27 | 云南电网有限责任公司电力科学研究院 | A kind of away rust by laser unmanned plane |
| CN108838547A (en) * | 2018-07-11 | 2018-11-20 | 云南电网有限责任公司电力科学研究院 | A kind of deflectable laser rust-removing device |
| CN109590289A (en) * | 2018-12-27 | 2019-04-09 | 吴忠仪表有限责任公司 | A kind of method of valve non-planar surfaces laser cleaning |
| CN109530912A (en) * | 2018-12-28 | 2019-03-29 | 武汉华工激光工程有限责任公司 | Based on interior coaxial focusing mechanism and based on interior coaxial focusing method |
| CN109530912B (en) * | 2018-12-28 | 2021-02-09 | 武汉华工激光工程有限责任公司 | Focusing device based on inner coaxiality and focusing method based on inner coaxiality |
| CN109798882A (en) * | 2019-02-20 | 2019-05-24 | 中国电子科技集团公司第十一研究所 | Laser transmitting system based on Beam Control |
| CN110076451A (en) * | 2019-06-04 | 2019-08-02 | 华霆（合肥）动力技术有限公司 | Laser processing device and laser focal compensation method |
| CN110076451B (en) * | 2019-06-04 | 2021-01-05 | 华霆（合肥）动力技术有限公司 | Laser processing device and laser focal length compensation method |
| CN111168230B (en) * | 2020-03-04 | 2022-03-04 | 济南邦德激光股份有限公司 | Focusing device and focusing method of laser cutting machine |
| CN111168230A (en) * | 2020-03-04 | 2020-05-19 | 济南邦德激光股份有限公司 | Focusing device and focusing method of laser cutting machine |
| CN111604582A (en) * | 2020-06-05 | 2020-09-01 | 青岛昆仑天峰航空科技有限公司 | Three-band laser double-focusing-head laser processing system and method |
| CN111590207A (en) * | 2020-06-15 | 2020-08-28 | 深圳信息职业技术学院 | Laser polishing method and laser polishing device |
| CN112570386A (en) * | 2020-12-09 | 2021-03-30 | 云南电网有限责任公司临沧供电局 | Microgravity environment dust-free laser cleaning device and method |
| CN112547698A (en) * | 2020-12-09 | 2021-03-26 | 云南电网有限责任公司临沧供电局 | Online laser cleaning device and method for lens |
| CN112828452A (en) * | 2020-12-31 | 2021-05-25 | 武汉华工激光工程有限责任公司 | Two-dimensional laser point cloud scanning imaging processing device and processing method |
| CN112828452B (en) * | 2020-12-31 | 2022-07-01 | 武汉华工激光工程有限责任公司 | Two-dimensional laser point cloud scanning imaging processing device and processing method |
| CN113305422A (en) * | 2021-05-31 | 2021-08-27 | 苏州科韵激光科技有限公司 | Coaxial confocal laser processing system |
| CN115529964A (en) * | 2022-09-29 | 2022-12-30 | 高永强 | Portable laser bud removing device |
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