CN206010147U - A kind of automatic focusing adjustor for laser processing - Google Patents
A kind of automatic focusing adjustor for laser processing Download PDFInfo
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- CN206010147U CN206010147U CN201621037524.9U CN201621037524U CN206010147U CN 206010147 U CN206010147 U CN 206010147U CN 201621037524 U CN201621037524 U CN 201621037524U CN 206010147 U CN206010147 U CN 206010147U
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- focusing
- laser processing
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- pedestal
- adjustor
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Abstract
The utility model discloses a kind of automatic focusing adjustor for laser processing, the automatic focusing adjustor for laser processing can realize automatic focusing during Laser Processing, the corresponding speed of whole device is fast, compact structure, precisely focusing can be realized, after the completion of focusing, focus center position is also highly stable, will not change easily, it is ensured that crudy.The automatic focusing device is particularly suited for the Laser Processing of abnormal curved surface or material in uneven thickness, can significantly improving laser processing working (machining) efficiency and crudy.
Description
Technical field
This utility model is related to technical field of laser processing, is specially related to a kind of automatic focusing adjustor for laser processing.
Background technology
Laser Processing due to heat affecting is little, multiple advantages such as machining accuracy is high, speed is fast and be widely used in many
Individual field.Before Laser Processing, the distance between focusing lens and machined material are to need adjustment, that is, need to be adjusted
Burnt.When focal adjustments are to optimum position, high energy-flux density could be obtained in focal point, rapidoprint is in the presence of laser
Transient evaporation, realizes the processing to material, produces best effect.With the development of integrated circuit and computer technology, automatically
Focus technique is widely used in the fields such as camera imaging, machine vision and optics Aulomatizeted Detect.And laser automatic focusing device
It is a kind of effective device for adjusting focal position of laser, which reaches more preferable processing effect when enabling to laser machine.
Traditional laser head has focused manual adjustment knob mode, that is, when fortune will be rotated using related mechanism
Move and be converted into linear motion, realize the regulation of focal position of laser.Not only moment of torsion is relatively small for this kind of mode, related zero
Part coordinates also can be more loose, the problem that focus adjustment rear center position changes easily occurs, and reduces crudy, or even shadow
Ring the continuity of processing operation.In addition, it is laser instrument and laser head to apply more focusing mode in focusing field at present
It is rigidly connected, when focal position will be changed, needs both to move up and down together.This kind of processing mode response is slow, and operation is multiple
Miscellaneous, precision is low, has a strong impact on working (machining) efficiency, furthermore the processing to abnormal curved surface or different-thickness material, due to swashing during processing
Light focal length needs to be continually changing, and conventional focusing mode can not meet processing request, and inefficiency has a strong impact on processing effect,
The fault rate of existing focus adjusting mechanism is also higher, and maintenance cost is larger.
Utility model content
The purpose of this utility model is the shortcoming for overcoming prior art, there is provided a kind of automatic focusing adjustor for laser processing, with
The efficiency of improving laser processing.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is：A kind of automatic focusing adjustor for laser processing, institute
Stating focussing mechanism includes：
Focusing pedestal, which has the focusing slideway axially extending along itself；
Laser mouth, on the shaft end of the focusing pedestal；
Focusing drum, is fixedly mounted with focus lamp thereon, and the focusing drum is axially slidably located at the focusing along itself
In slideway；
Drive mechanism, is used for driving the focusing drum to enter line slip along the focusing slideway on the focusing pedestal；
Image acquisition device, is projected to the light on workpiece to be processed surface for obtaining through the focus lamp and the laser mouth
Speckle image；
Controller, the controller are connected with described image harvester, the drive mechanism signal respectively, the controller
The drive mechanism work is controlled according to the light spot image that described image harvester is collected and the focusing drum is ordered about along described
Focusing slideway slides to realize focusing.
Preferably, the laser mouth is arranged with the focus lamp coaxial inner conductor.
Preferably, installed in focusing on microscope base, the focusing microscope base is removably mounted on the focusing to the focus lamp
On cylinder.
Preferably, offer on the focusing pedestal axially through middle cavity, the middle cavity forms the focusing
Slideway, the focusing drum be arranged on focusing drum when in the focusing slideway outside week portion and the focusing slideway between logical
Cross multiple sealing member dynamic sealing connect settings.
Preferably, described image harvester is to be relatively fixed the ccd detector of setting, the CCD with the focusing pedestal
The light spot image for getting is sent to the controller by detector, and the controller is straight according to the hot spot in the light spot image
Footpath size and send feedback signal to the drive mechanism controlling the running status of the drive mechanism.
Preferably, the drive mechanism is linear electric motors, and the linear electric motors include being fixedly arranged on the focusing pedestal
Primary that is secondary, sliding along the secondary length bearing of trend, described primary is fixedly connected with the focusing drum.
Preferably, the focussing mechanism also includes protective glass, and the protective glass is located at the laser mouth and the focusing base
Between seat.
Further, the laser mouth is removably mounted on the shaft end of the focusing pedestal by helicitic texture,
The end being connected with the focusing pedestal on the laser mouth is provided with storage tank, and the protective glass is located at the storage tank
In.
Due to the utilization of above-mentioned technical proposal, this utility model has following advantages compared with prior art：This practicality is new
The automatic focusing adjustor for laser processing of type, can realize automatic focusing, the corresponding speed of whole device during Laser Processing
Degree is fast, compact structure, can realize precisely focusing, and after the completion of focusing, focus center position is also highly stable, will not send out easily
Changing, it is ensured that crudy.The automatic focusing device is particularly suited for the laser of abnormal curved surface or material in uneven thickness
Processing, can significantly improving laser processing working (machining) efficiency and crudy.
Description of the drawings
Internal structure schematic diagram of the accompanying drawing 1 for focussing mechanism of the present utility model；
Light path schematic diagram of the accompanying drawing 2 for focussing mechanism of the present utility model；
Operation principle schematic diagram of the accompanying drawing 3 for focussing mechanism of the present utility model；
Wherein：100th, focussing mechanism；200th, workpiece to be processed；1st, focusing pedestal；1a, focusing slideway；1b, accommodating chamber；2、
Laser mouth；2a, mouth；2b, holding tank；3rd, focusing drum；4th, microscope base is focused on；5th, focus lamp；6th, drive mechanism；61st, primary；62、
Secondary；7th, protective glass；8th, contiguous block；9th, image acquisition device（Ccd detector）；10th, sealing ring.
Specific embodiment
The technical solution of the utility model is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Referring to the automatic focusing adjustor for laser processing shown in Fig. 1 to Fig. 3, the focussing mechanism 100 is applied to Laser Processing and sets
When being processed to workpiece to be processed 200 on standby, laser process equipment is also included for sending the laser instrument of laser beam, be used for
The workbench of workpiece to be processed 200 is placed, between workpiece to be processed and laser instrument of the focussing mechanism 100 i.e. on workbench,
The laser beam that laser instrument is produced is focused on the surface of workpiece to be processed 200 by focussing mechanism 100.
Referring to shown in Fig. 1, Fig. 2, the focussing mechanism 100 includes focusing pedestal 1, uses on focusing 1 shaft end of pedestal
In the laser mouth 2 of laser output, the focusing drum 3 of focus lamp 5 is slidably located on focusing pedestal 1 and is fixedly mounted with, wherein,
Have on focusing pedestal 1 along itself axially extending focusing slideway 1a, focusing drum 3 is along itself axially slidably located at focusing slideway
In 1a.Specifically, focusing pedestal 1 on offer axially through middle cavity, in this, cavity just forms above-mentioned focusing slideway
1a and provide focusing drum 3 with slide-and-guide；When focusing drum 3 is arranged in focusing slideway 1a, the outside week portion and focusing of focusing drum 3
Dynamic sealing connect setting is formed by multiple sealing members between slideway 1a, specifically can be opened up in portion in the outside week of focusing drum 3 many
Individual cannelure simultaneously arranges O-ring seal 10 in above-mentioned cannelure, to form sealing between focusing drum 3 and focusing slideway 1a,
So as to play a part of to intercept dust.
Focus lamp 5 is fixedly mounted on focusing microscope base 4, and the focusing microscope base 4 is removably mounted on focusing drum 3.If
When putting, focus lamp 5 is also connected with feed flow circulating water machine, to ensure cooling effect.
Laser mouth 2 answers coaxial inner conductor to arrange with focus lamp 5, specifically, the axial line of the mouth 2a on 2 end of laser mouth with
The axial line of focus lamp 5 is collinearly arranged, so that the laser beam after line focus mirror 5 is focused on is projected to and treats through laser mouth 2
On processing workpiece 200.Laser mouth 2 can be removably installed on the shaft end of focusing pedestal 1 by helicitic texture.Laser mouth 2
Protective glass 7 is additionally provided between focusing pedestal 1, to form the protective effect to focus lamp 5.Specifically, on laser mouth 2 with focusing
The end that pedestal 1 is connected is provided with storage tank 2b, and protective glass 7 is located in storage tank 2b, as shown in Figure 1.
Shown in Figure 1, focussing mechanism 100 also includes drive mechanism 6, and which is used for driving focusing drum 3 along focusing slideway 1a
Enter line slip, the drive mechanism 6 is on focusing pedestal 1.Herein, drive mechanism 6 adopt for linear electric motors, which has height
Speed linear motion characteristic and corresponding speed are fast, compact structure, mobile accuracy are high, the features such as can easily be accommodated, control, can be rapidly
Realize the position adjustment of focusing drum 3.Accommodating chamber 1b is offered on focusing pedestal 1, and linear electric motors are i.e. in accommodating chamber 1b.Should
Linear electric motors include that primary 61 and secondary 62, secondary 62 are regularly located on focusing pedestal 1, and its length bearing of trend is parallel to tune
The axial line of burnt pedestal 1, primary 61 can slidably be arranged along secondary 62 length bearing of trend, and primary 61 pass through contiguous block 8
It is fixedly connected with focusing drum 3, so, primary 61 slide along focusing slideway 1a along just ordering about focusing drum 3 during secondary 62 slip.
The focussing mechanism 100 also includes image acquisition device 9 and controller（Not shown in figure）.Image acquisition device 9 and focusing
Between pedestal 1, position is arranged with being relatively fixed, herein image acquisition device 9 adopt for ccd detector, which is used for obtaining line focus
Mirror 5 and laser mouth 2 are projected to the light spot image on 200 surface of workpiece to be processed.Controller respectively with image acquisition device 9 and drive
The light spot image for collecting is sent to controller by mechanism's 6 signal connection, image acquisition device 9, and the controller is further according to the hot spot
On image, the size of spot diameter to be sending corresponding feedback signal to drive mechanism 6, so as to control the operation shape of drive mechanism 6
State, and then order about focusing mount 3 and correspondingly enter line slip and realize focusing along focusing slideway 1a.
Focussing mechanism 100 during focusing first passes through drive mechanism 6 and orders about focusing drum 3 towards or away from laser mouth 2
Motion, obtains light spot image by image acquisition device 9 come compartment of terrain during the motion, and controller is first according to these hot spots
On image, the Changing Pattern of spot diameter to be judging the direction that focuses, i.e., during focusing drum 3 is moved towards certain direction,
If spot diameter constantly becomes big, illustrate that laser beam off-focal, controller then send feedback signal to drive mechanism 6 and make
Which drives focusing drum 3 to slide in the opposite direction；And if spot diameter constantly becomes hour, laser beam increasingly convergence is described
Focus, controller sends feedback signal to drive mechanism 6 makes which drive focusing drum 3 to continue to slide in the direction, until image is adopted
When spot diameter is minimum in the light spot image that storage 9 is collected, then illustrates that hot spot now is required pinpointed focus, control
Device processed sends feedback signal and causes 3 stop motion of focusing drum to drive mechanism 6, so just achieves fast accurate ground and adjusts automatically
Burnt.
Shown in Figure 3, the focussing mechanism 100 is engaged with laser instrument located at the top of workpiece to be processed 200, and laser adds
During work, laser instrument is not vertically subjected to displacement with focussing mechanism 100, and is only translated in the horizontal direction.Treat
The surface of processing workpiece 200 is curved-surface structure, changes processing so when focussing mechanism 100 and laser instrument are translated in the horizontal direction
During position, just need to be re-focused.
Before Laser Processing, previously according to the machined parameters that processing request arranges laser instrument so that what laser instrument was produced swashs
Light light beam is by being incident upon on the surface of workpiece to be processed 200 after focussing mechanism 100.Then, image acquisition device 9 start working and
Collection laser beam is projected on 200 surface of workpiece to be processed the light spot image of formation afterwards and feeds back to controller, focussing mechanism
100 start and realize automatic focusing so that during whole Laser Processing, laser beam is incident upon optimal focus position all the time
Place, realizes optimal focusing effect, so as to improve Laser Processing efficiency.
To sum up, using automatic focusing adjustor for laser processing of the present utility model, which can be real during Laser Processing
Existing automatic focusing, for this compares the mode that traditional laser instrument is moved together with laser head and focused, the focussing mechanism
Response speed more sensitive, rapid, can realize more accurately focusing.The focussing mechanism compact structure, maintenance cost are low,
After the completion of focusing, focus center position is also highly stable, will not change easily, it is ensured that crudy.The automatic focusing
Device is particularly suited for the Laser Processing of abnormal curved surface or material in uneven thickness, can significantly improving laser processing processing
Efficiency and crudy.
Above-described embodiment only for technology design of the present utility model and feature are described, its object is to allow and be familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalence changes that is made according to this utility model spirit or modification, should all cover protection domain of the present utility model it
Interior.
Claims (8)
1. a kind of automatic focusing adjustor for laser processing, it is characterised in that the focussing mechanism includes：
Focusing pedestal, which has the focusing slideway axially extending along itself；
Laser mouth, on the shaft end of the focusing pedestal；
Focusing drum, is fixedly mounted with focus lamp thereon, and the focusing drum is axially slidably located at the focusing slideway along itself
In；
Drive mechanism, is used for driving the focusing drum to enter line slip along the focusing slideway on the focusing pedestal；
Image acquisition device, is projected to the hot spot figure on workpiece to be processed surface for obtaining through the focus lamp and the laser mouth
Picture；
Controller, the controller are connected with described image harvester, the drive mechanism signal respectively, the controller according to
The light spot image that described image harvester is collected controls the drive mechanism work and orders about the focusing drum along the focusing
Slideway slides to realize focusing.
2. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：The laser mouth and the focusing
Mirror coaxial inner conductor is arranged.
3. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：The focus lamp is installed in focusing
On microscope base, the focusing microscope base is removably mounted on the focusing drum.
4. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：Offer on the focusing pedestal
Axially through middle cavity, the middle cavity forms the focusing slideway, and the focusing drum is arranged in the focusing slideway
Shi Suoshu focusing drums outside week portion and the focusing slideway between by multiple sealing member dynamic sealing connect settings.
5. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：Described image harvester is and institute
The ccd detector that focusing pedestal is relatively fixed setting is stated, the light spot image for getting is sent to the control by the ccd detector
Device processed, the controller sent according to the spot diameter size in the light spot image feedback signal to the drive mechanism with
Control the running status of the drive mechanism.
6. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：The drive mechanism is straight-line electric
Machine, the linear electric motors include that the secondary being fixedly arranged on the focusing pedestal, the length bearing of trend along the secondary are slided
Primary, described primary is fixedly connected with the focusing drum.
7. automatic focusing adjustor for laser processing according to claim 1, it is characterised in that：The focussing mechanism also includes protecting
Goggle, the protective glass are located between the laser mouth and the focusing pedestal.
8. automatic focusing adjustor for laser processing according to claim 7, it is characterised in that：The laser mouth is tied by screw thread
Structure is removably mounted on the shaft end of the focusing pedestal, the end being connected with the focusing pedestal on the laser mouth
Storage tank is provided with, the protective glass is in the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037524.9U CN206010147U (en) | 2016-09-05 | 2016-09-05 | A kind of automatic focusing adjustor for laser processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621037524.9U CN206010147U (en) | 2016-09-05 | 2016-09-05 | A kind of automatic focusing adjustor for laser processing |
Publications (1)
| Publication Number | Publication Date |
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| CN206010147U true CN206010147U (en) | 2017-03-15 |
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ID=58259851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621037524.9U Active CN206010147U (en) | 2016-09-05 | 2016-09-05 | A kind of automatic focusing adjustor for laser processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271045A (en) * | 2016-09-05 | 2017-01-04 | 苏州大学 | A kind of automatic focusing adjustor for laser processing, laser process equipment and focus adjustment method |
| CN113634877A (en) * | 2020-04-27 | 2021-11-12 | 大族激光科技产业集团股份有限公司 | Laser processing device and method |
-
2016
- 2016-09-05 CN CN201621037524.9U patent/CN206010147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271045A (en) * | 2016-09-05 | 2017-01-04 | 苏州大学 | A kind of automatic focusing adjustor for laser processing, laser process equipment and focus adjustment method |
| CN113634877A (en) * | 2020-04-27 | 2021-11-12 | 大族激光科技产业集团股份有限公司 | Laser processing device and method |
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