CN102310271A - Electric-control magnetic-partition laser melting metal cutting machine - Google Patents
Electric-control magnetic-partition laser melting metal cutting machine Download PDFInfo
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- CN102310271A CN102310271A CN201110168906A CN201110168906A CN102310271A CN 102310271 A CN102310271 A CN 102310271A CN 201110168906 A CN201110168906 A CN 201110168906A CN 201110168906 A CN201110168906 A CN 201110168906A CN 102310271 A CN102310271 A CN 102310271A
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Abstract
The invention relates to an electric-control magnetic-partition laser melting metal cutting machine. In the invention, an electrical signal is loaded into a control unit by utilizing AC (alternating current) so as to realize functions of connecting, identifying and controlling load electrical appliances; waste materials are sucked back by a strong magnetic field instead of an auxiliary gas unit; and after the power density of incident laser beams exceeds a certain value, the interior of a material at irradiation points of the laser beams starts to be evaporated to form a small hole, the small hole is taken as a black body to absorb all the energy of the incident laser beams once being formed, then the small hole is surrounded by a molten metal wall, and finally the molten material is taken away through auxiliary suction coaxial with the laser beams. By adopting a laser cutting mode, the electric-control magnetic-partition laser melting metal cutting machine has the advantages that the obtained cutting seam is fine, the obtained cutting surface is smooth, the cutting speed is fast, heat deformation is small, the contact with the surface of the material can be avoided during the cutting process, more materials can be saved, and the machine is suitable for machining large products. The electric-control magnetic-partition laser melting metal cutting machine can be applied to machining sheet metals in the heavy/light industry, medical treatment industry and other related industries, cutting and forming rotors, stators and blades, and manufacturing various chains and components in the automobile manufacturing industry; and meanwhile the machine is also suitable for the advertisement and decoration industry, the artwork manufacturing industry 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 fusion metal cutter; Laser generator and auxiliary gas, controller are arranged; It is characterized in that waste material that magnetic force cuts off automatically controlled laser fusion metal cutter 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, after the laser beam power density of incident surpasses a certain value, the material internal start vaporizer that light beam irradiates is pointed out; Form hole; In case this aperture forms, it will absorb all incident laser beam energies as black matrix, and aperture is melted metallic walls and surrounds; Take away melted material with the auxiliary resorption that light beam is coaxial; Magnetic force cuts off automatically controlled laser fusion metal cutter and is made up of laser generating unit, waste material partition unit and control module, and wherein laser generating unit is made up of laser generating unit, focalizer and speculum, and waste material cuts off the unit and is made up of electromagnetic transducer and resorption probe; Control module is made up of control panel, I/O mouth; 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, and high-power laser beam heats material makes it at instant melting; 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, and high-power laser beam heats material makes it at instant melting; The laser generator of laser generating unit produces laser, converges to a very little point via lens, is focused in the very little scope at the energy of unit space inner laser; Make it have very large energy; Laser is mapped to material/be cut on the workpiece via the emission mirror reversal, under the heating of high power density laser bundle, after the laser beam power density of incident surpasses a certain value; The material internal start vaporizer that light beam irradiates is pointed out; Form hole, in case this aperture forms, it will absorb all incident laser beam energies as black matrix; Aperture is melted metallic walls and surrounds, and takes away melted material with the auxiliary resorption that light beam is coaxial.
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 (5)
1. magnetic force cuts off automatically controlled laser fusion metal cutter; Laser generator and auxiliary gas, controller are arranged; It is characterized in that waste material that magnetic force cuts off automatically controlled laser fusion metal cutter 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, after the laser beam power density of incident surpasses a certain value, the material internal start vaporizer that light beam irradiates is pointed out; Form hole; In case this aperture forms, it will absorb all incident laser beam energies as black matrix, and aperture is melted metallic walls and surrounds; Take away melted material with the auxiliary resorption that light beam is coaxial; Magnetic force cuts off automatically controlled laser fusion metal cutter and is made up of laser generating unit, waste material partition unit and control module, and wherein laser generating unit is made up of laser generating unit, focalizer and speculum, and waste material cuts off the unit and is made up of electromagnetic transducer and resorption probe; Control module is made up of control panel, I/O mouth; 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, and high-power laser beam heats material makes it at instant melting; 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 automatically controlled laser fusion metal cutter 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 automatically controlled laser fusion metal cutter 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 automatically controlled laser fusion metal cutter 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 automatically controlled laser fusion metal cutter 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; Alternating current loads the moving track of the required speculum of user and when reflection lasering beam is closed in reception, adjusts reflection angle constantly, accomplishes required pattern cut on request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168906A CN102310271A (en) | 2011-06-22 | 2011-06-22 | Electric-control magnetic-partition laser melting metal cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168906A CN102310271A (en) | 2011-06-22 | 2011-06-22 | Electric-control magnetic-partition laser melting metal cutting machine |
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| Publication Number | Publication Date |
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| CN102310271A true CN102310271A (en) | 2012-01-11 |
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| CN201110168906A Pending CN102310271A (en) | 2011-06-22 | 2011-06-22 | Electric-control magnetic-partition laser melting metal cutting machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087534A (en) * | 1965-08-18 | 1967-10-18 | Kearney & Trecker Corp | Laser cutting machine tool |
| KR20040061418A (en) * | 2002-12-30 | 2004-07-07 | (주)한빛레이저 | Electromagnet nozzle for scrap removal of laser cutting system and its methods |
| CN101765474A (en) * | 2007-06-15 | 2010-06-30 | 江森自控帅福得先进能源动力系统有限责任公司 | Laser cutting system |
| CN101920399A (en) * | 2010-08-19 | 2010-12-22 | 广东大族粤铭激光科技股份有限公司 | Method and device for cutting stainless steel sheet with fiber laser |
| CN201833118U (en) * | 2010-11-05 | 2011-05-18 | 山东理工大学 | Device using laser to cut rounds and arcs |
-
2011
- 2011-06-22 CN CN201110168906A patent/CN102310271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1087534A (en) * | 1965-08-18 | 1967-10-18 | Kearney & Trecker Corp | Laser cutting machine tool |
| KR20040061418A (en) * | 2002-12-30 | 2004-07-07 | (주)한빛레이저 | Electromagnet nozzle for scrap removal of laser cutting system and its methods |
| CN101765474A (en) * | 2007-06-15 | 2010-06-30 | 江森自控帅福得先进能源动力系统有限责任公司 | Laser cutting system |
| CN101920399A (en) * | 2010-08-19 | 2010-12-22 | 广东大族粤铭激光科技股份有限公司 | Method and device for cutting stainless steel sheet with fiber laser |
| CN201833118U (en) * | 2010-11-05 | 2011-05-18 | 山东理工大学 | Device using laser to cut rounds and arcs |
Non-Patent Citations (1)
| Title |
|---|
| 刘其斌: "《激光加工技术及其应用》", 31 August 2007, 冶金工业出版社 * |
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Application publication date: 20120111 |