CN102310270A - Magnetically isolated and electrically controlled laser oxidizing fusion cutting machine - Google Patents
Magnetically isolated and electrically controlled laser oxidizing fusion cutting machine Download PDFInfo
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- CN102310270A CN102310270A CN201110168900A CN201110168900A CN102310270A CN 102310270 A CN102310270 A CN 102310270A CN 201110168900 A CN201110168900 A CN 201110168900A CN 201110168900 A CN201110168900 A CN 201110168900A CN 102310270 A CN102310270 A CN 102310270A
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Abstract
The invention provides a magnetically isolated and electrically controlled laser oxidizing fusion cutting machine. The cutting machine is characterized in that a control unit adopts alternating current to load electricity to realize the functions of connecting, identifying and controlling load electrical appliances; oxygen or other active gases are adopted to carry out fusion cutting instead of the inert gases; high magnetic fields are adopted to absorb waste materials back, thus replacing an auxiliary gas unit; the materials are heated by high power and density laser beams so that the speed at which the surface temperature of the materials rises to the boiling temperature is high enough to avoid melting caused by heat conduction; the cut materials are ignited under irradiation of the laser beams and carry out drastic chemical reaction with oxygen to generate more heat sources; and a part of materials are vaporized into vapor and disappear, and the other part of materials used as ejecta are absorbed back by the auxiliary gas flow from the bottoms of cutting joints. The cutting machine has the following beneficial effects: the laser cutting joints are fine; the laser cutting surface is smooth; the laser cutting speed is high; the heat distortion is slight; laser cutting can avoid contact with the surfaces of the materials; and the cutting machine is suitable for processing of large products, saves materials, and is applied to sheet metal processing in relevant industries such as heavy industry, light industry, medical treatment industry and the like, cutting forming of rotors, stators and blades, manufacturing of various chains and parts in the automobile industry, advertisement decoration, handicraft manufacturing and the like.
Description
Technical field
The present invention relates to a kind of laser cutting machine, especially a kind of laser formation machine.
Background technology
Einstein delivered " about quantum theory of radiation " in 1916 on the basis of Bohr work.It is theoretical that article has proposed laser emission, and this key foundation of theory of laser just.Therefore Einstein is considered to the father of theory of laser.In this piece paper, Einstein has distinguished three kinds of processes: be excited absorption, spontaneous radiation, stimulated radiation.Preceding two notions are known.Be excited to absorb is exactly to be in the extraneous radiation of Atomic Absorption of lower state and to transit to upper state; Spontaneous radiation is meant that the atom of upper state spontaneously gives off photon and migrates to lower state.The characteristics of this radiation be the transition of each atom be spontaneous, independently carry out, its process is completely without external influence, also it doesn't matter each other.Therefore the state of their photons of sending has nothing in common with each other.Such coherence of light is poor, and direction stimulated radiation at random is then opposite.It is meant that the atom that is in high level perhaps under " induction ", transits to low-lying level in " stimulation " of photon, and gives off a photon with the same frequency of incident photon.This cans be compared to the early morning cock crows, and a cock cries, and other cock receives " stimulation " also can send same sound.The maximum characteristics of stimulated radiation are by the photon of stimulated radiation generation and cause that the original photon of stimulated radiation has identical state.They have identical frequency, and identical direction can't be distinguished both difference fully.Like this, through a stimulated radiation, a photon becomes two identical photons.This means that light has been reinforced, light has been exaggerated in other words.This lasing just basic process.Cut is to utilize the laser beam flying of high power density to cross material surface; In short time material is heated to several thousand to up to ten thousand degrees centigrade at the utmost point; Make material fusing or gasification, will melt with gases at high pressure again or gasification substance blows away from joint-cutting, reach the purpose of cutting material.
Laser cutting technique still can not satisfy the requirement of development in the application of traditional industry, still vacancy aspect the material excision forming of traditional industry.
Summary of the invention
In order to overcome laser cutting technique, the object of the present invention is to provide a kind of laser cutting machine that can be applied on the traditional industry material excision forming aspect in shortcoming and drawback aspect the material excision forming of traditional industry.
Magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine; Laser generator and auxiliary gas, controller are arranged; It is characterized in that waste material that magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine cut off the unit adopt electromagnetic transducer make magnetic field with resorption by the material of high power laser light fusing or vaporization, control module adopt alternating current load the electric signal drive laser beam at the orbit that is cut on the material; Adopt oxygen or other active gases to replace inert gas to melt cutting; Be cut material and under the irradiation of laser beam, lighted, with oxygen fierce chemical reaction takes place and produce bigger thermal source, magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine and is made up of laser generating unit, waste material partition unit and control module; Wherein laser generating unit is made up of laser generating unit, focalizer and speculum; Waste material cuts off the unit and is made up of electromagnetic transducer and resorption probe, and control module is made up of control panel, I/O mouth, and laser generator generation laser becomes high-energy rays via concentrator optically focused and shines on the speculum; Speculum adjustment angle is to accomplish difform material cutting; Adopt oxygen or other active gases to replace inert gas to melt cutting, be cut material and under the irradiation of laser beam, lighted, fierce chemical reaction takes place with oxygen; The material of fusion is utilized resorption probe resorption by the high-intensity magnetic field of electromagnetic transducer manufacturing; At I/O mouth of the present invention input user requested data, be data transaction that electric signal is carried in the control each several part and moves the particularly orbit of the laser beam of speculum control, dissimilar to accomplish, difform materials cuttings.
The invention has the beneficial effects as follows that the cutting of cut is stitched the slot of thin cut generally at 0.10～0.20mm, cut surface is smooth, and the cut surface of cut does not have burr, and surface roughness generally is controlled at more than the Ra:12.5.Speed is fast, and the speed of cut is compared with the speed of line cutting and wanted fast a lot.Thermal deformation is little, and the laser slotted of Laser Processing is thin, speed fast, concentration of energy, and it is little therefore to pass to the heat that is cut on the material, causes that distortion of materials is also very little.Cut can not contact with material surface; Guarantee that product can not be scratched; Be fit to the processing of big part product: the mould manufacturing expense of big part product is very high; Laser Processing does not need any mould manufacturing, and the limit of collapsing that forms when avoiding the material punching fully of Laser Processing, and the production cost that can reduce enterprise significantly improves the class of product.Be fit to very much the exploitation of new product.In case after product drawing forms, can carry out Laser Processing, you can obtain the material object of new product in the shortest time at once.Save material: computer programming is adopted in Laser Processing, can carry out cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing of material to difform product, improves the utilization rate of material to greatest extent.
The specific embodiment
Below in conjunction with case study on implementation the present invention is further specified.
Laser generator generation laser becomes high-energy rays via concentrator optically focused and shines on the speculum, and speculum adjustment angle is to accomplish difform material cutting, high-power laser beam heats material; The laser generator of laser generating unit produces laser; Converge to a very little point via lens, focused in the very little scope, make it have very large energy at the energy of unit space inner laser; Laser is mapped to material/be cut on the workpiece via the emission mirror reversal; Under the heating of high power density laser bundle, adopt oxygen or other active gases to replace inert gas to melt cutting, be cut material and under the irradiation of laser beam, lighted; With oxygen fierce chemical reaction taking place produces bigger thermal source; The speed that the material surface temperature rises to boiling temperature is enough to avoid heat to conduct the thawing that causes soon, and the part material is vaporized into steam and disappears, and the partial melting material is received by the secondary air resorption from the joint-cutting bottom as ejecta.
When using the present invention that metal material is carried out excision forming; Though metal material has very high reflectivity in room temperature to infrared energy; But emission is in the absorptivity in fact of far infrared drawback 10.6um laser beam has only 0.5%～10%; But,, but can in the time of microsecond level, make the surface begin fusing very soon when having focussed laser beam that power density surpasses 106w/cm2 when shining the metal surface.The absorptivity that is in the most metal of molten condition sharply rises, and generally can improve 66%～80%.
Wherein, The communication alternating current of control module adopts alternating current to load the method for electric signal; Be input to the machine control end to required user data with crossing the I/O mouth; Be converted into the electric signal that machine can be discerned to user data again, electric energy can also be realized discerning on the basis of drive machines operation, the function of connection and control load electrical equipment.
Waste material cuts off the electromagnetic transducer of unit under the driving of electric energy; Convert electrical energy into high-intensity magnetic field, resorption probe will locate magnetic field concentration probe a bit on, probe is synchronous with the laser beam maintenance; The material of fusing or vaporization transports the waste material resorption through magnetic force during the high-power laser beam cutting.
The focalizer of laser generating unit adopts the biconvex collector lens; The biconvex collector lens is assembled laser beam on the high-octane basis of script laser beam once more; It is released energy on a very little particle; Angle and the laser beam distance that can regulate lens according to different situations is with the joint-cutting size of adjustment laser beam on material, and cutting temperature.
Air pressure gun adopts the major part ion wind gun; It removes static and foreign matter, the dust of body surface with strong ion wind; Apply compressor high power resorption air pressure in it; Material is lip-deep to be moved synchronously being cut with laser beam, and coverage is at 30mm 90mm 150mm, in the ion and the time: positive 0.1s, 0.4s, 0.7s; Negative 0.1s, 0.3s, 0.8s, operating voltage 4.6KV current sinking, 200uA, operating temperature-10～50 ℃, weight 0.55Kg, high-tension cable length 3Meters, air pressure 5～7Kg, air speed＞10m/s.
Establish sensor devices in the reflective mirror; Energy to guarantee laser beam can be good at being controlled in the certain limit; Write the moving track of the required speculum of access customer in the PLC Programmable Logic Controller and when reflection lasering beam is closed in reception, adjust reflection angle constantly, accomplish required pattern cut on request.
Claims (6)
1. magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine; Laser generator and auxiliary gas, controller are arranged; It is characterized in that waste material that magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine cut off the unit adopt electromagnetic transducer make magnetic field with resorption by the material of high power laser light fusing or vaporization, control module adopt alternating current load the electric signal drive laser beam at the orbit that is cut on the material; Adopt oxygen or other active gases to replace inert gas to melt cutting; Be cut material and under the irradiation of laser beam, lighted, with oxygen fierce chemical reaction takes place and produce bigger thermal source, magnetic force cuts off automatically controlled laser oxidizing fusion cutting machine and is made up of laser generating unit, waste material partition unit and control module; Wherein laser generating unit is made up of laser generating unit, focalizer and speculum; Waste material cuts off the unit and is made up of electromagnetic transducer and resorption probe, and control module is made up of control panel, I/O mouth, and laser generator generation laser becomes high-energy rays via concentrator optically focused and shines on the speculum; Speculum adjustment angle is to accomplish difform material cutting; Adopt oxygen or other active gases to replace inert gas to melt cutting, be cut material and under the irradiation of laser beam, lighted, fierce chemical reaction takes place with oxygen; The material of fusion is utilized resorption probe resorption by the high-intensity magnetic field of electromagnetic transducer manufacturing; At I/O mouth of the present invention input user requested data, be data transaction that electric signal is carried in the control each several part and moves the particularly orbit of the laser beam of speculum control, dissimilar to accomplish, difform materials cuttings.
2. require described magnetic force to cut off laser oxidizing fusion cutting machine according to right 1; It is characterized in that: the communication alternating current of control module adopts alternating current to load the method for electric signal; Be input to the machine control end to required user data with crossing the I/O mouth; Be converted into the electric signal that machine can be discerned to user data again, electric energy can also be realized discerning on the basis of drive machines operation, the function of connection and control load electrical equipment.
3. require described magnetic force to cut off laser oxidizing fusion cutting machine according to right 1; It is characterized in that: waste material cuts off the electromagnetic transducer of unit under the driving of electric energy; Convert electrical energy into high-intensity magnetic field, resorption probe will locate magnetic field concentration probe a bit on, probe is synchronous with the laser beam maintenance; The material of fusing or vaporization transports the waste material resorption through magnetic force during the high-power laser beam cutting.
4. require described magnetic force to cut off laser oxidizing fusion cutting machine according to right 1; It is characterized in that: the focalizer of laser generating unit adopts the biconvex collector lens; The biconvex collector lens is assembled laser beam on the high-octane basis of script laser beam once more; It is released energy on a very little particle, and angle and the laser beam distance that can regulate lens according to different situations is with the joint-cutting size of adjustment laser beam on material, and cutting temperature.
5. require described magnetic force to cut off laser oxidizing fusion cutting machine according to right 1; It is characterized in that: air pressure gun adopts the major part ion wind gun; It removes static and foreign matter, the dust of body surface with strong ion wind, applies compressor high power resorption air pressure in it, and material is lip-deep to be moved synchronously being cut with laser beam; Coverage is at 30mm 90mm 150mm; In the ion and the time: positive 0.1s, 0.4s, 0.7s, negative 0.1s, 0.3s, 0.8s, operating voltage 4.6KV current sinking, 200uA, operating temperature-10～50 ℃, weight 0.55Kg, high-tension cable length 3Meters, air pressure 5～7Kg, air speed＞10m/s.
6. require described magnetic force to cut off laser oxidizing fusion cutting machine according to right 1; It is characterized in that: establish sensor devices in the reflective mirror; Energy to guarantee laser beam can be good at being controlled in the certain limit; Write the moving track of the required speculum of access customer in the PLC Programmable Logic Controller and when reflection lasering beam is closed in reception, adjust reflection angle constantly, accomplish required pattern cut on request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168900A CN102310270A (en) | 2011-06-22 | 2011-06-22 | Magnetically isolated and electrically controlled laser oxidizing fusion cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168900A CN102310270A (en) | 2011-06-22 | 2011-06-22 | Magnetically isolated and electrically controlled laser oxidizing fusion cutting machine |
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| CN102310270A true CN102310270A (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110168900A Pending CN102310270A (en) | 2011-06-22 | 2011-06-22 | Magnetically isolated and electrically controlled laser oxidizing fusion cutting machine |
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Citations (9)
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|---|---|---|---|---|
| JPH06122085A (en) * | 1992-10-14 | 1994-05-06 | Toyota Motor Corp | Laser beam welding machine |
| JPH07124781A (en) * | 1993-10-28 | 1995-05-16 | Hitachi Constr Mach Co Ltd | Laser beam machining method and laser beam machine |
| CN1490115A (en) * | 2002-10-15 | 2004-04-21 | 竹内株式会社 | Detector for reduction of dust collection capacity in machining space of working machine |
| JP2004188451A (en) * | 2002-12-10 | 2004-07-08 | Sony Corp | Device and method for laser beam machining |
| CN1730226A (en) * | 2004-08-05 | 2006-02-08 | 发那科株式会社 | Laser cutting apparatus |
| CN1765563A (en) * | 2004-10-30 | 2006-05-03 | 通快机床两合公司 | Holding tool for a processing head in a laser processing machine with several anti-colliding elements having means for adjusting the loosening load |
| CN1927521A (en) * | 2005-09-08 | 2007-03-14 | 索尼株式会社 | Laser processing apparatus and laser processing method as well as debris extraction mechanism and debris extraction method |
| CN200999967Y (en) * | 2006-12-31 | 2008-01-02 | 江苏金方圆数控机床有限公司 | Air feeding system of laser cutting machine tool |
| CN101733556A (en) * | 2009-12-25 | 2010-06-16 | 深圳市大族激光科技股份有限公司 | Laser cutting machine |
-
2011
- 2011-06-22 CN CN201110168900A patent/CN102310270A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06122085A (en) * | 1992-10-14 | 1994-05-06 | Toyota Motor Corp | Laser beam welding machine |
| JPH07124781A (en) * | 1993-10-28 | 1995-05-16 | Hitachi Constr Mach Co Ltd | Laser beam machining method and laser beam machine |
| CN1490115A (en) * | 2002-10-15 | 2004-04-21 | 竹内株式会社 | Detector for reduction of dust collection capacity in machining space of working machine |
| JP2004188451A (en) * | 2002-12-10 | 2004-07-08 | Sony Corp | Device and method for laser beam machining |
| CN1730226A (en) * | 2004-08-05 | 2006-02-08 | 发那科株式会社 | Laser cutting apparatus |
| CN1765563A (en) * | 2004-10-30 | 2006-05-03 | 通快机床两合公司 | Holding tool for a processing head in a laser processing machine with several anti-colliding elements having means for adjusting the loosening load |
| CN1927521A (en) * | 2005-09-08 | 2007-03-14 | 索尼株式会社 | Laser processing apparatus and laser processing method as well as debris extraction mechanism and debris extraction method |
| CN200999967Y (en) * | 2006-12-31 | 2008-01-02 | 江苏金方圆数控机床有限公司 | Air feeding system of laser cutting machine tool |
| CN101733556A (en) * | 2009-12-25 | 2010-06-16 | 深圳市大族激光科技股份有限公司 | Laser cutting machine |
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Application publication date: 20120111 |