CN104128332A - Laser cleaning machine with focus tracking function - Google Patents
Laser cleaning machine with focus tracking function Download PDFInfo
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- CN104128332A CN104128332A CN201410378140.2A CN201410378140A CN104128332A CN 104128332 A CN104128332 A CN 104128332A CN 201410378140 A CN201410378140 A CN 201410378140A CN 104128332 A CN104128332 A CN 104128332A
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- Prior art keywords
- laser
- focus
- cleaning head
- laser cleaning
- workpiece
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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
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of laser devices, in particular to a laser cleaning machine with the focus tracking function. The laser cleaning machine with the focus tracking function comprises a laser device, an optical fiber coupling transmission system, a laser cleaning head, a control system and a laser focus tracking system, wherein the optical fiber coupling transmission system is arranged in front of the laser device, the laser cleaning head is arranged in front of the optical fiber coupling transmission system, collimation, vibrating reflection and focusing are conducted on coupled laser light after the coupled laser light enters the laser cleaning head, and then the output laser light shines on a workpiece; the control system is connected with the laser device and is used for controlling the laser device to generate laser light which has different powers and is used in different working modes; the laser focus tracking system is arranged on the laser cleaning head and is used for measuring and displaying the distance between the focus of laser light output by the laser cleaning head and the workpiece. According to the laser cleaning machine with the focus tracking function, the power of laser light shining on the workpiece can be adjusted conveniently by an operator by adjusting the distance between the focus and the workpiece during cleaning, and the cleaning requirements of different workpieces are met.
Description
Technical field
The present invention relates to laser equipment technical field, particularly a kind of Focus tracking laser cleaning machine.
Background technology
In industrial production, laser cleaning machine has started being applied slowly, the position that goes out optical focus of common laser cleaning machine is difficult to determine, causing can not be by the equipment or the workpiece that clean in focus in the process of cleaning, therefore there is the problem of laser power decay, cause utilizing the laser of peak power to clean equipment or workpiece, cleaning performance is poor, has also caused the waste of Laser Power Supply.In addition,, when the workpiece to fragile cleans, owing to being difficult to determine the position of laser spot, be therefore difficult to regulate being radiated at the power of the laser on workpiece, easily defective work piece.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of distance that can determine between laser spot and workpiece, convenient operation personnel utilize the distance adjustment between focus and workpiece to be radiated at the power of the laser on workpiece when cleaning, and meet the Focus tracking laser cleaning machine to the cleaning requirement of different workpieces.
For solving the problems of the technologies described above, the invention provides a kind of Focus tracking laser cleaning machine, comprising: laser instrument, coupling fiber transmission system, laser cleaning head, control system and laser spot tracking system.Described coupling fiber transmission system is arranged on the front side of described laser instrument, and described coupling fiber transmission system receives the laser that described laser instrument produces, and described laser is coupled.Described laser cleaning head is arranged on the front side of described coupling fiber transmission system, and after the described laser of overcoupling is incident to described laser cleaning head to collimate, vibrate reflection and focusing, Output of laser is radiated on workpiece, realizes the cleaning to described workpiece.Described control system is connected with described laser instrument, and described control system produces the laser of different capacity and different working modes for controlling described laser instrument.Described laser spot tracking system is arranged on described laser cleaning head, and described laser spot tracking system is used for measuring and showing the focus of the laser that described laser cleaning head is exported and the distance between described workpiece.
Further, described laser spot tracking system comprises: focus measurement unit and feedback display unit.Described focus measurement unit and described feedback display unit are arranged on described laser cleaning head; Described focus measurement unit is connected with described feedback display unit.Described focus measurement unit is measured the focus of laser of described laser cleaning head output and the range information between described workpiece.Described feedback display unit is obtained described range information from described focus measurement unit, and shows in real time the numerical value of described distance.
Further, also comprise: protective cover.Described protective cover is fixed on the front end of described laser cleaning head; It is inner that described focus measurement unit is arranged on described protective cover.
Further, also comprise: handle and shift knob.Described handle is fixed on described laser cleaning head.Described shift knob is fixed on described handle.Described shift knob is connected with described control system and described laser spot tracking system, for opening or close described control system and described laser spot tracking system.
Focus tracking laser cleaning machine provided by the invention, be provided with laser spot tracking system, the focus of the laser that laser cleaning head is exported and the distance between workpiece can be measured and show to laser spot tracking system in real time, convenient operation personnel utilize the distance adjustment between focus and workpiece to be radiated at the power of the laser on workpiece when cleaning, and meet the cleaning requirement to different workpieces.
Accompanying drawing explanation
The Focus tracking laser cleaning machine structured flowchart that Fig. 1 provides for the embodiment of the present invention;
The Focus tracking laser cleaning machine structural representation that Fig. 2 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, Focus tracking laser cleaning machine provided by the invention is described.
Referring to Fig. 2, the embodiment of the present invention provides a kind of Focus tracking laser cleaning machine, comprising: laser instrument 2, coupling fiber transmission system, laser cleaning head, control system 3 and laser spot tracking system.Coupling fiber transmission system is arranged on the front side of laser instrument 2, and coupling fiber transmission system receives the laser that laser instrument 2 produces, and laser is coupled.Laser cleaning head is arranged on the front side of coupling fiber transmission system, is incident to laser cleaning head collimates, vibrate reflection and focus on through the laser of overcoupling, and the Ear Mucosa Treated by He Ne Laser Irradiation of output oscillatory type translation, on workpiece, is realized the cleaning to workpiece.Control system 3 is connected with laser instrument 2, produces the laser of different capacity and different working modes (optical mode as continued or be interrupted optical mode) for controlling laser instrument 2.Laser spot tracking system is arranged on laser cleaning head, and laser spot tracking system is used for measuring and showing the focus of the laser that laser cleaning head is exported and the distance between surface of the work.
The structure of the Focus tracking the laser cleaning machine further embodiment of the present invention being provided is below introduced.Referring to Fig. 1 and Fig. 2, the rear side of laser instrument 2 is provided with cooling system 1, for laser instrument 2 is dispelled the heat.Control system 3 is connected with laser instrument 2, and control system 3 produces the laser of different capacity and different working modes for controlling laser instrument 2.Coupling fiber transmission system comprises: coupling fiber set of lenses, optical fiber (core diameter is 400～600mm) and the first optics Sealed casing pipe.Laser cleaning head comprises: light beam collimation lens group (expanding multiplying power is 2～3), vibration mirror scanning focusing system (comprising galvanometer system and focus lens group), light-emitting units, the second optics Sealed casing pipe and shell.Laser spot tracking system comprises: focus measurement unit 9 and feedback display unit 8.Coupling fiber set of lenses is arranged on the front side of laser instrument 2, and coupling fiber set of lenses receives the laser that laser instrument 2 sends, and the laser receiving is coupled.Referring to Fig. 1 and Fig. 2, light beam collimation lens group is connected with coupling fiber set of lenses by optical fiber, through the laser after coupling fiber set of lenses coupling by fiber optic conduction to light beam collimation lens group.The first optics Sealed casing pipe is arranged on the outside of optical fiber and coupling fiber set of lenses junction, and the second optics Sealed casing pipe is arranged on the outside of optical fiber and light beam collimation lens group junction.Galvanometer system is arranged on the front end of light beam collimation lens group, is incident to galvanometer system vibrate reflection (being the swing formation straight line type track back and forth of hot spot of reverberation formation) through the laser after light beam collimation lens group collimation; Focus lens group is arranged on the front end of galvanometer system, and light-emitting units is arranged on the front end of focus lens group, and wherein, the focal length of focus lens group is 20～60mm; The laser that vibration is reflected through galvanometer system is incident to focus lens group and focuses on, and the laser after focusing is radiated on workpiece by light-emitting units, realizes the cleaning to described workpiece.Light beam collimation lens group, vibration mirror scanning focusing system (comprising galvanometer system and focus lens group) and the second optics Sealed casing pipe are all arranged in shell; The rear end of light-emitting units is arranged in shell, and the front end of light-emitting units is arranged on housing exterior.Focus measurement unit 9 and feedback display unit 8 are arranged on shell.Focus measurement unit 9 is connected with feedback display unit 8, the focus of the laser of focus measurement unit 9 measurement laser cleaning head outputs and the range information between surface of the work, feedback display unit 8 is obtained described range information from focus measurement unit 9, and the numerical value of real-time range of a signal.Referring to Fig. 2, the Focus tracking laser cleaning machine that the embodiment of the present invention provides also comprises: dust exhaust apparatus, metal hose 4, protective cover 7, handle 5 and shift knob 6.The air port of dust exhaust apparatus is arranged on shell, the impurity producing while cleaning for absorbing.The control line being connected with control system 3, the conduit of dust exhaust apparatus and optical fiber are arranged in metal hose 4, and metal hose 4 shields.Protective cover 7 is fixed on the front end of laser cleaning head; Focus measurement unit 9 is arranged on protective cover 7 inside.Handle 5 is fixed on shell, and shift knob 6 is fixed on handle 5; Shift knob 6 is connected with control system 3 and laser spot tracking system, for opening or closing control system 3 and laser spot tracking system.
The operation principle of the Focus tracking laser cleaning machine that the embodiment of the present invention provides is as follows: referring to Fig. 1 and Fig. 2, control system 3 is controlled laser instrument 2 work, can control the laser that laser instrument 2 sends different capacity or different mode (optical mode as continued or be interrupted optical mode) by control system 3.The laser that laser instrument 2 sends laser is incident to coupling fiber set of lenses, and coupling fiber set of lenses is coupled to the laser of incident, is transferred to efficiently light beam collimation lens group collimates through the laser of overcoupling through optical fiber.Laser after light beam collimation lens group collimation is incident to vibration mirror scanning focusing system, through vibration reflection (being that the swing back and forth of the hot spot that forms of reverberation forms straight line type track), be radiated on workpiece by light-emitting units after focusing on, realize the cleaning to workpiece successively.In the process of cleaning, the focus (the linear pattern track that vibration reflects to form is as a linear pattern focus) of the laser that laser cleaning head is exported and the distance between workpiece can be measured and show to laser spot tracking system in real time, when focus is just in time positioned on workpiece, distance is shown as zero; When focus is positioned at surface of the work front side, distance is shown as negative value; When focus is positioned at the rear side of surface of the work, distance be shown as on the occasion of; Focus from the distance of surface of the work more away from, the absolute value of distance is larger.Operating personnel regulate according to the distance value showing in feedback display unit 8 power that is radiated at the laser on workpiece when cleaning, and meet the cleaning requirement to different workpieces, focus from the distance of surface of the work more away from, the power of the laser irradiating on surface of the work is less.
The Focus tracking laser cleaning machine that the embodiment of the present invention provides, can clean workpiece by the laser beam of laser cleaning head generation oscillatory type translation, cleans and compares with chemical agent with traditional mechanical type cleaning, can avoid the workpiece to cleaning to cause damage.In addition, Focus tracking laser cleaning machine provided by the invention, is integrated with many middle functional units in laser cleaning head, and integrated degree is high, volume is little, is convenient for carrying.The Focus tracking laser cleaning machine that the embodiment of the present invention provides, be provided with laser spot tracking system, the focus of the laser that laser cleaning head is exported and the distance between workpiece can be measured and show to laser spot tracking system in real time, convenient operation personnel utilize the distance adjustment between focus and workpiece to be radiated at the power of the laser on workpiece when cleaning, and meet the cleaning requirement to different workpieces.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. a Focus tracking laser cleaning machine, is characterized in that, comprising: laser instrument, coupling fiber transmission system, laser cleaning head, control system and laser spot tracking system;
Described coupling fiber transmission system is arranged on the front side of described laser instrument, the laser that described coupling fiber transmission system produces for receiving described laser instrument, and described laser is coupled;
Described laser cleaning head is arranged on the front side of described coupling fiber transmission system, described laser cleaning head is radiated at workpiece for Output of laser after the described laser through overcoupling that is incident to described laser cleaning head being collimated, vibrated reflection and focusing, realizes the cleaning to described workpiece;
Described control system is connected with described laser instrument, and described control system produces the laser of different capacity and different working modes for controlling described laser instrument;
Described laser spot tracking system is arranged on described laser cleaning head, and described laser spot tracking system is used for measuring and showing the focus of the laser that described laser cleaning head is exported and the distance between described workpiece.
2. Focus tracking laser cleaning machine according to claim 1, is characterized in that, described laser spot tracking system comprises: focus measurement unit and feedback display unit;
Described focus measurement unit and described feedback display unit are arranged on described laser cleaning head; Described focus measurement unit is connected with described feedback display unit;
Described focus measurement unit is for measuring the focus of laser of described laser cleaning head output and the range information between described workpiece;
Described feedback display unit is used for obtaining described range information from described focus measurement unit, and shows in real time the numerical value of described distance.
3. Focus tracking laser cleaning machine according to claim 2, is characterized in that, also comprises: protective cover;
Described protective cover is fixed on the front end of described laser cleaning head; It is inner that described focus measurement unit is arranged on described protective cover.
4. according to the Focus tracking laser cleaning machine described in claim 1-3 any one, it is characterized in that, also comprise: handle and shift knob;
Described handle is fixed on described laser cleaning head;
Described shift knob is fixed on described handle;
Described shift knob is connected with described control system and described laser spot tracking system, for opening or close described control system and described laser spot tracking system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378140.2A CN104128332A (en) | 2014-08-04 | 2014-08-04 | Laser cleaning machine with focus tracking function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378140.2A CN104128332A (en) | 2014-08-04 | 2014-08-04 | Laser cleaning machine with focus tracking function |
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| CN104128332A true CN104128332A (en) | 2014-11-05 |
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| CN201410378140.2A Pending CN104128332A (en) | 2014-08-04 | 2014-08-04 | Laser cleaning machine with focus tracking function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873124A (en) * | 2016-12-27 | 2017-06-20 | 广东工业大学 | A kind of method for automatically adjusting focal length |
| CN107377530A (en) * | 2017-07-26 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | Laser spot control system and its application, laser cleaning head |
| CN110944789A (en) * | 2017-05-23 | 2020-03-31 | 汽车照明罗伊特林根有限公司 | Method for laser machining of a workpiece for material removal |
| CN113210361A (en) * | 2021-05-27 | 2021-08-06 | 中国工程物理研究院激光聚变研究中心 | Automatic focusing laser cleaning output device and output method |
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| WO2014009681A2 (en) * | 2012-07-10 | 2014-01-16 | Woodrow Scientific Limited | Methods and apparatus for laser cleaning of fabric materials |
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| CN103736693A (en) * | 2014-01-10 | 2014-04-23 | 苏州热工研究院有限公司 | Laser cleaning system for removing nuclear power station radioactive contamination |
| CN103817113A (en) * | 2014-03-14 | 2014-05-28 | 华中科技大学 | Metallic surface dirt laser cleaning system and method |
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Patent Citations (8)
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| CN1817549A (en) * | 2006-03-23 | 2006-08-16 | 北京工业大学 | Portable laser cleaning system |
| CN102259103A (en) * | 2010-05-28 | 2011-11-30 | 三星Sdi株式会社 | Laser cleaning device and laser cleaning method using the same |
| WO2014009681A2 (en) * | 2012-07-10 | 2014-01-16 | Woodrow Scientific Limited | Methods and apparatus for laser cleaning of fabric materials |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873124A (en) * | 2016-12-27 | 2017-06-20 | 广东工业大学 | A kind of method for automatically adjusting focal length |
| CN110944789A (en) * | 2017-05-23 | 2020-03-31 | 汽车照明罗伊特林根有限公司 | Method for laser machining of a workpiece for material removal |
| CN107377530A (en) * | 2017-07-26 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | Laser spot control system and its application, laser cleaning head |
| CN113210361A (en) * | 2021-05-27 | 2021-08-06 | 中国工程物理研究院激光聚变研究中心 | Automatic focusing laser cleaning output device and output method |
| CN113210361B (en) * | 2021-05-27 | 2022-02-22 | 中国工程物理研究院激光聚变研究中心 | Automatic focusing laser cleaning output device and output method |
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Application publication date: 20141105 |