CN101104224A - Constant-optical-path light-path compensating system - Google Patents
Constant-optical-path light-path compensating system Download PDFInfo
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- CN101104224A CN101104224A CN 200610099406 CN200610099406A CN101104224A CN 101104224 A CN101104224 A CN 101104224A CN 200610099406 CN200610099406 CN 200610099406 CN 200610099406 A CN200610099406 A CN 200610099406A CN 101104224 A CN101104224 A CN 101104224A
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Abstract
The invention discloses a compensating system for a light path of constant optical path, comprising a beam, a left slider component, a slider component of a cutting head and a right slider component. The left slider component, the slider component of the cutting head and the right slider component are fixed on the beam. A first flat reflecting mirror and a second flat reflecting mirror are fixed on the right slider component. The slider component of the cutting head comprises a third flat reflecting mirror and a driving device. When the slider component of the cutting head moves on the beam left to right, the left slider component and the right slider component will move synchronously on the beam. When the compensating system for the light path of constant optical path of the invention is used in a laser beam to cut objects, the optical path of the laser beam light path keeps unchangeable, and thus the problem is get rid of that the diameters of the light beam of far and near light points are different caused by the laser divergence angle when the laser beam cuts objects in different positions, thereby assuring the uniform cut quality.
Description
Technical field
The present invention relates to a kind of bucking-out system, relate in particular to a kind of constant-optical-path light-path compensating system that is used for Laser Processing.
Background technology
As the outstanding feature and one of the pillar of advanced information society's photoelectron technology of 20th century scientific technological advance, the development of laser technology and laser industry is subjected to the great attention of advanced country in the world.Laser Processing is a maximum project during laser is used, and also is the important means that conventional industries are transformed.
Laser processing technology be the characteristic of utilizing laser beam and matter interaction to material (comprising metal and nonmetal) cut, the process technology of welding, surface treatment, punching and little processing etc.A complex art of multi-door subjects such as that laser processing technology relates to is light, mechanical, electrical, material and detection, laser-processing system comprises laser instrument, light-conducting system, machining tool, control system etc.Laser cutting is to utilize the high power density laser bundle irradiation workpiece of line focus, and the additional chemical reaction heat energy system of the auxiliary cutting process of beam energy and active gases is absorbed by material, causes that thus the point of irradiation material temperature sharply rises.Material begins vaporization after arriving boiling point, and forms hole.Along with relatively moving of light beam and workpiece, finally make material form joint-cutting.In the present Laser Processing application, CO
2Laser instrument is most widely used to cut and to weld, and accounts for 70% and 20% respectively, and surface treatment is then less than 10%.At US and European CO
2Laser instrument has accounted for 70～80%.Main account for 10% to be cut in China's Laser Processing, wherein the CO more than 98%
2Laser instrument.CO
2Laser cutting is with CO with focus lamp
2Laser beam focuses on material surface and makes material fusing, and use simultaneously with the coaxial Compressed Gas of laser beam to blow away the material that is melted, and make laser beam and material do relative motion along certain track, thus the joint-cutting of formation definite shape.Since the nineteen seventies along with CO
2Constantly improving and development of laser instrument and Numeric Control Technology become a kind of advanced person's of industrial sheet material cutting processing method at present.
But CO
2Though it is wider that laser is used, and also has some technical problems: 1) CO
2Laser Processing is few to Study on Processing Technology, only is suitable for the processing not high to required precision, then is difficult to realize for the higher retrofit of required precision; 2) CO
2Laser Processing is to utilize light beam and relatively moving of workpiece and realize cutting, but move and the motionless laser cutting machine of workpiece for light beam, because in the flight light path design at present, light path length is different during cutting, because the light beam that laser instrument sends is not a collimated light beam, have certain angle of divergence, so the spot size of diverse location is different in cutting process, the quality of cutting section is different.When especially cutting certain thickness workpiece, the mass discrepancy of this cutting section performance more obvious; 3) in order to reduce the mass discrepancy of section, often need add beam expander at the output of CO2 laser instrument, promptly increase by a parallel light tube and expand the bundle processing, though the beam diameter that expands behind the bundle becomes big, the angle of divergence diminishes, make before near-end and far-end focus in the cutting working range beam sizes as far as possible near consistent, though but beam expander can reduce the angle of divergence, but do not compensate the length of light path, therefore the mass discrepancy to cutting section only can play the minimizing effect, but can not fundamentally guarantee the cut quality of cutting section.
Summary of the invention
It is a kind of simple in structure that the technical problem to be solved in the present invention is to provide, and avoids the constant-optical-path light-path compensating system of cutting section mass discrepancy under light path length different situations.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: constant-optical-path light-path compensating system of the present invention, comprise crossbeam, left slider assembly, cutting head slide block assembly and right slide block assembly, described left slider assembly, cutting head slide block assembly and right slide block assembly activity are fixed on the crossbeam, be fixed with first, second mirror of redressing on the right slide block assembly, the cutting head slide block assembly comprises the 3rd redress mirror and driving arrangement, during move left and right, left and right slide block assembly is same moved further on crossbeam on crossbeam for the cutting head slide block assembly.
Be fixed with guide rail on the described crossbeam, described left slider assembly, cutting head slide block assembly and right slide block assembly are included in left slider, driving slide block and the right slide block that moves on the guide rail respectively.
Described left slider assembly comprises first conveyer belt of the left skateboard that is fixed in left slider, the left chain wheel that is arranged at the left skateboard below and process left chain wheel, described first conveyer belt, one end is fixed in cutting head and drives slide block assembly, and the other end is fixedlyed connected with first fixed block on being fixed on crossbeam.
Described right slide block assembly comprises the right slide plate that is fixed in right slide block, the right pulley that is arranged at right slide plate below and second conveyer belt that passes through right pulley, described second conveyer belt, one end is fixed in cutting head and drives slide block assembly, and the other end is fixedlyed connected with second fixed block on being fixed on crossbeam.
Described first, second conveyer belt is a belt.
Described left and right slide block assembly is by the fixedly connected and same moved further of rigidity connecting rod, and described rigidity connecting rod is fixed to left and right slide block assembly by retaining element.
Described driving arrangement is that leading screw drives or belt drives.
With respect to prior art, the invention has the advantages that: constant-optical-path light-path compensating system of the present invention only is provided with crossbeam and reaches the left and right slide block assembly of move left and right on crossbeam and drive slide block assembly, therefore simple in structure, low cost of manufacture; The same moved further of left and right slide block assembly, and the distance that moves is half that drives slide block displacement, therefore the light path of the laser beam light path of process constant-optical-path light-path compensating system remains unchanged, thereby when having broken away from the article of cutting diverse location, owing to the different problem of far and near luminous point beam diameter that laser beam divergence causes, guaranteed the unanimity of cut quality.
Description of drawings
Fig. 1 is the floor map of constant-optical-path light-path compensating system of the present invention.
Fig. 2 is the cutaway view along A-A line among Fig. 1.
Fig. 3 is the cutaway view along B-B line among Fig. 1.
Fig. 4 transmits schematic diagram for the light path in the constant-optical-path light-path compensating system of the present invention.
The specific embodiment
Please refer to Fig. 1-shown in Figure 4, constant-optical-path light-path compensating system of the present invention comprises crossbeam 1, be fixed on guide rail 11 on the crossbeam 1, be slidingly fixed on respectively on the guide rail 11 and left slide assemblies (not label), right slide assemblies (not label) and the cutting head driven unit (not label) between left and right slide assemblies that can move left and right.
Described left slider assembly comprises left slider 12, be fixed in left skateboard 2 on the left slider 12, be fixed in the left chain wheel 3 of left skateboard 2 belows, first conveyer belt, 7 one ends through left chain wheel 3 are fixed in cutting head driving slide plate 6, the other end is fixed on first fixed block 9, and described first fixed block 9 is fixed on the crossbeam 1.In the present embodiment, described left skateboard 2 can be a tabular, bent plate shape that also can be L-shaped.
Described cutting head driven unit comprises and drives slide block 13, is fixed in the cutting head that drives on the slide block 13 and drives slide plate 6, drive driving arrangement (not shown) on the slide plate 6, be fixed in cutting head and drive first location-plate 21 (Fig. 4) on the slide plate 6 and be fixed in focus lamp 23 and the laser nozzle 24 that drives on the slide block 13 due to cutting head.Described driving arrangement adopts present type of drive, as lead screw transmission, belt drives etc., and is fixed to cutting head with existing mode and drives on the slide plate 6, thereby guarantee that cutting head drives slide plate 6 move left and right on guide rail 11.In the present embodiment, it be L shaped that described cutting head drives slide plate 6, and the height of first fixed block 9 is lower than the height that cutting head drives the L shaped short end lower surface of slide plate 6, and therefore first fixed block 9 can not influence cutting head and drives left mobile of slide plate 6.Described first location-plate, 21 vertical fixing are in the upper surface of cutting head driving slide plate 6, and first location-plate 21 is near the L shaped short end of cutting head drive plate.Be fixed with the 3rd mirror 22 of redressing on first location-plate 21.
Described right slide block assembly comprises right slide block 14, be fixed in right slide plate 4 on the right slide block 14, be fixed in right slide plate 4 belows right pulley 5, be fixed in second location-plate 18 on the right slide plate 4, second conveyer belt, 8 one ends through right pulley 5 are fixed in cutting head driving slide plate 6, the other end is fixed on second fixed block 10, described second fixed block 10 is fixed on the crossbeam 1, and second fixed block 10 is positioned at the below that cutting head drives slide plate 6 in vertical direction, thereby can not influence cutting head and drive slide plate 6 and move right.Described second location-plate, 18 vertical fixing are on right slide plate 4, and second location-plate 18 is fixed in the end that right pulley 5 is set, and second location-plate 18 is provided with the first dull and stereotyped mirror 19 and second mirror 20 of redressing.Above-mentioned left slider assembly is rigidly connected to by rigid connecting rod 15 with right slide block assembly, thereby guarantees that left slider assembly and right slide block assembly are synchronized with the movement.One end of described rigid connecting rod 15 is fixed in left skateboard 2, the other end is fixed on the right slide plate 4, and in installation process, rigid connecting rod 15 just is fixed to respectively after first, second conveyer belt 7,8 fixedly finishes and strains on left skateboard 2 and the right slide plate 4, has therefore avoided the asynchronous mobile problem of left and right slide block assembly that causes owing to the belt elasticated.Above-mentioned rigid connecting rod 15 is respectively fixed on the left and right slide plate 2,4 by tightening member, and preferred, described tightening member is a screw 151.
Please be simultaneously with reference to Fig. 1, shown in Figure 4, when cutting head driving slide plate 6 is moved to the left apart from S, the 3rd redresses mirror 22 along with cutting head driving slide plate 6 is moved to the left apart from S, under the drive of first, second conveyer belt 7,8 of left and right pulley 3,5, left and right slide plate 2,4 is moved to the left 0.5S respectively, first, second 19,20 in the mirror of redressing that is fixed on the right slide plate 4 is moved to the left 0.5S simultaneously, this moment, the optical path length of light path was (AB-0.5S)+BC+ (CD+S-0.5S), therefore, optical path length remains the AB+BC+CD sum, and optical path length does not become.Otherwise, when cutting head driving slide plate 6 moves right apart from S, the 3rd redresses mirror 22 along with cutting head driving slide plate 6 moves right apart from S, under the drive of first, second conveyer belt 7,8 of left and right pulley 3,5, left and right slide plate 2,4 0.5S that moves right respectively, be fixed in first, second 19,20 0.5S that move right simultaneously of mirror that redress on the right slide plate 4, this moment, the optical path length of light path was (AB+0.5S)+BC+ (CD-S+0.5S), therefore, optical path length remains the AB+BC+CD sum, and optical path length does not become.
Therefore, how no matter cutting head is moved if driving slide plate 6, right slide plate 4 always moves the distance of half to equidirectional, and first, second mirror the 19, the 20th of redressing is fixed on the right slide plate 4, therefore just realized the function of optical path compensation, obtained constant light path, promptly cut and compensate the light path increase when near-end light path reduces, when cutting far-end light path increases, the compensation light path reduces, thereby guarantee all can keep optical path length constant, therefore do not have the problem of laser beam divergence, guaranteed the cut quality unanimity on the whole cutting area at any cutting position.
But the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (7)
1. constant-optical-path light-path compensating system, comprise crossbeam, left slider assembly, cutting head slide block assembly and right slide block assembly, described left slider assembly, cutting head slide block assembly and right slide block assembly activity are fixed on the crossbeam, it is characterized in that: be fixed with first, second mirror of redressing on the right slide block assembly, the cutting head slide block assembly comprises the 3rd redress mirror and driving arrangement, during move left and right, left and right slide block assembly is same moved further on crossbeam on crossbeam for the cutting head slide block assembly.
2. constant-optical-path light-path compensating system as claimed in claim 1, it is characterized in that: be fixed with guide rail on the described crossbeam, described left slider assembly, cutting head slide block assembly and right slide block assembly are included in left slider, driving slide block and the right slide block that moves on the guide rail respectively.
3. constant-optical-path light-path compensating system as claimed in claim 2, it is characterized in that: described left slider assembly comprises first conveyer belt of the left skateboard that is fixed in left slider, the left chain wheel that is arranged at the left skateboard below and process left chain wheel, described first conveyer belt, one end is fixed in cutting head and drives slide block assembly, and the other end is fixedlyed connected with first fixed block on being fixed on crossbeam.
4. constant-optical-path light-path compensating system as claimed in claim 2, it is characterized in that: described right slide block assembly comprises the right slide plate that is fixed in right slide block, the right pulley that is arranged at right slide plate below and second conveyer belt that passes through right pulley, described second conveyer belt, one end is fixed in cutting head and drives slide block assembly, and the other end is fixedlyed connected with second fixed block on being fixed on crossbeam.
5. constant-optical-path light-path compensating system as claimed in claim 4 is characterized in that: described first, second conveyer belt is a belt.
6. constant-optical-path light-path compensating system as claimed in claim 1 is characterized in that: described left and right slide block assembly is by the fixedly connected and same moved further of rigidity connecting rod, and described rigidity connecting rod is fixed to left and right slide block assembly by retaining element.
7. as each described constant-optical-path light-path compensating system among the claim 1-6, it is characterized in that: described driving arrangement is that leading screw drives or belt drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610099406 CN100479970C (en) | 2006-07-14 | 2006-07-14 | Constant-optical-path light-path compensating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610099406 CN100479970C (en) | 2006-07-14 | 2006-07-14 | Constant-optical-path light-path compensating system |
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| Publication Number | Publication Date |
|---|---|
| CN101104224A true CN101104224A (en) | 2008-01-16 |
| CN100479970C CN100479970C (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610099406 Expired - Fee Related CN100479970C (en) | 2006-07-14 | 2006-07-14 | Constant-optical-path light-path compensating system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607347B (en) * | 2008-06-17 | 2011-12-14 | 北京大恒激光设备有限公司 | laser processing device and light guide device thereof |
| CN103192177A (en) * | 2013-03-28 | 2013-07-10 | 辽宁同创数控设备有限公司 | Aplanatic optical path compensation device of a CO2 (carbon dioxide) laser cutting machine |
| CN110429463A (en) * | 2019-08-09 | 2019-11-08 | 莆田学院 | A method of improving Laser Output Beam stability |
| CN115582631A (en) * | 2022-09-23 | 2023-01-10 | 深圳市汇川技术股份有限公司 | Flight processing method, flight processing device, laser plane cutting equipment and medium |
-
2006
- 2006-07-14 CN CN 200610099406 patent/CN100479970C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607347B (en) * | 2008-06-17 | 2011-12-14 | 北京大恒激光设备有限公司 | laser processing device and light guide device thereof |
| CN103192177A (en) * | 2013-03-28 | 2013-07-10 | 辽宁同创数控设备有限公司 | Aplanatic optical path compensation device of a CO2 (carbon dioxide) laser cutting machine |
| CN110429463A (en) * | 2019-08-09 | 2019-11-08 | 莆田学院 | A method of improving Laser Output Beam stability |
| CN115582631A (en) * | 2022-09-23 | 2023-01-10 | 深圳市汇川技术股份有限公司 | Flight processing method, flight processing device, laser plane cutting equipment and medium |
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| Publication number | Publication date |
|---|---|
| CN100479970C (en) | 2009-04-22 |
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