Unit for laser cutting of materials
FIELD: process engineering.
SUBSTANCE: this invention relates to cutting of metals by laser. Its use allows expanding operating performances by application of independent operation of two or more laser heads at one machine tool. Laser cutting machine tool comprises: bed 1, at least, one longitudinal guide 2, at least, two transverse guides 3, at least, two laser heads 4 and computer. Every transverse guide 2 is mounted on longitudinal guide 2 for independent displacement while every laser head 4 is mounted on transverse guide 3 for independent horizontal and vertical displacement. Drives of transverse guides and laser heads are connected to computer for independent program control thereof.
EFFECT: six-axis control over laser heads.
The technical field to which the invention relates.
This invention relates to laser cutting of materials, including metals, and in particular to a machine for laser cutting of materials and machine-readable media containing a program for controlling such a machine.
The level of technology
Currently, laser cutting materials, in particular sheet materials have found wide application in industry. At the same time to speed up the process of laser cutting machine apply machine with two laser heads, synchronously moving on both sides of the material being cut. This may be a single laser source, the beam of which is split by respective mirrors (see, for example, U.S. patent No. 6576870, publ. 10.06.2003), or two separate laser source (see, for example, patent RF №2139782, publ. 20.10.1999; U.S. patent No. 6313433, publ. 06.11.2001; patents for utility model China No. 2661357, publ. 08.12.2004, No. 201257862, publ. 17.06.2009, No. 201338160 and 201338162, both publ. 04.11.2009). This scheme allows the device to increase the cutting speed, especially in the case of relatively thick materials, but it requires precise alignment of the beams vertically and simultaneous movement of both laser heads.
Also known machine for laser cutting of materials, in which two laser beam move each other to speed up the cutting process l is Bo the formation of the complex profile of the slot (see application for U.S. patent No. 2010/0044353, publ. 25.02.2010). Known and machine, in which both heads are moving synchronously in the same direction as the ability to adjust the distance between them that allows you to simultaneously produce two equal parts (see the application form for China patent No. 101036959, publ. 19.09.2007). However, in this case, the rigid connection of the laser heads restricts the functionality of the machine.
Disclosure of inventions
The purpose of the present invention is to extend the functionality by providing the ability for independent work of two or more laser heads on the same machine.
To achieve this goal in the first object of the present invention proposed a machine for laser cutting of materials, comprising: a base; at least one longitudinal guide, each of which is mounted on a base; at least two cross rails, each of which is installed on at least one of the longitudinal guides with the possibility of independent movement along this longitudinal guide through its own longitudinal displacement drive of the cross-rail; at least two laser heads, and on each of the cross rails installed in at least one of the laser heads with the possibility of independent movement on atocopherol guide by its own drive horizontal movement and a private drive vertical movement; computing means, connected to all the drives horizontal movement of the laser head, all drives vertical movement of the laser head and all actuators move the cross-rail and which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross-rail, with each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head is made in the form of a linear motor that is installed along the corresponding guide.
Another feature of the machine according to the present invention is that in case one longitudinal rail and two transverse rails with one laser head, each of the computing means is configured to shestiseriynogo control both laser heads.
To achieve the same goal in the second object of the present invention proposed a machine-readable medium, intended for direct participation in the computing means disclosed above machine and contains software is mu which when executing in said computing means provides independent control of each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head.
In the case when the machine contains one longitudinal guide, and two cross rails with one laser head each specified program when executing in said computing means can provide testicardines control of both laser heads.
Brief description of drawings
The invention is illustrated in the drawings, in which identical elements are denoted by the same reference position.
Figure 1 shows a perspective view of a variant of implementation of the machine for laser cutting of materials according to the present invention.
Figure 2 is a front view of the machine of figure 1.
Figure 3 shows the individual components of the machine of figure 1.
Detailed description of embodiments of the invention
The present invention can be implemented, for example, in the form of a machine for cutting sheet material, shown in the accompanying drawings.
As can be seen from figure 1, a machine for cutting materials under this option, the implementation has a base 1 on which the gesture is fixed on the longitudinal guide rail 2. It should be borne in mind that shown in the drawings, the option exercise machine of the present invention is only illustrative and not restrictive. In particular, the longitudinal guides can be, for example, two that are installed parallel to one another. The name of this guide is given to emphasize their length along the base 1, which generally has an elongated shape.
As can be seen from figure 1-3, on the longitudinal rail 2 mounted transverse rails 3. The following drawings show two cross rails 3, however, their number may be different. For example, in one longitudinal rail 2 can be installed three cross rails 3. Each of the cross rails 3 installed on the respective longitudinal rail 2 with the possibility of independent movement along this longitudinal guide 2. Such movement is provided by its own longitudinal displacement drive of the transverse groove (not shown), which is a linear motor mounted along the respective longitudinal guide 2.
In the drawings, both shown cross rails 3 installed so that each of the actuators longitudinal movement of the transverse guide assumes placed on the lower side of prodelin the second guide rail 2 (see figb). This, however, is not mandatory. For example, if the transverse guide rail 3 is made with bracket covering the longitudinal guide 2, the longitudinal displacement drive of the cross-rail can be placed on the top side of the longitudinal rail 2. The specific implementation of the suspension longitudinal rail 2 and the placement of longitudinal displacement drive of the cross-rail are determined by the location and design features of the machine, easy maintenance, etc.
As can be seen from the drawings, each cross-rail 3 includes a laser head 4 mounted with the possibility of independent movement on this cross-rail 3. Such movement is provided by a private drive horizontal movement and a private drive vertical movement (not shown), each of which is executed in the same manner as described above, the longitudinal displacement drive of the cross-rail. The possibility of horizontal movement of the laser head 4 along the transverse guide rail 3 and chose the last name, because such movement occurs across the longitudinal direction of the guide 2.
It should be borne in mind that one cross-rail 3 can be installed in two or more laserhairremoval 4, having each one its own drive horizontal movement and the vertical drive movement. For example, two laser heads 4 can be located on the opposite shoulders of one transverse guide 3.
As can be seen in figure 2, transverse rails 3 can be one against another in such a position that the laser head 4 was located within the maximum displacement L in the longitudinal direction. Typically, this distance L machines for cutting sheet material meets (or even exceeds) the longitudinal size of the sheet 5 of the cut material.
Not shown the other elements of the machine of the present invention, in order not to obscure the drawings and not to complicate the description. Of course, the machine of the present invention contains all the components necessary to perform cutting materials, such as sheet material 5, as shown in figure 1. All such components not shown may be performed, for example, according to the Russian patent for useful model №86129 (publ. 27.08.2009). In particular, the laser head 4 may be such as disclosed in the patent of Russian Federation №2266802 (publ. 27.12.2006).
The use of multiple (at least two) laser head 4 moving each of its transverse guide 3, allows you not only to speed up the cutting process,but provides the ability to simultaneously cut multiple parts or holes from a single sheet 5 or more sheets. To implement this capability, each head must move along its trajectory (three coordinates), which serve as its own drive horizontal movement and a private drive vertical displacement and longitudinal displacement drive of the cross-rail of the respective transverse guide rail 3. These drives are controlled using appropriate computational means (not shown), for example, a device with a numerical control or programmable controller, processor, computer, etc. all drives horizontal movement of the laser head and all drives vertical movement of the laser head for each of the laser heads 4, and all actuators longitudinal displacement of the cross-rail for each of the cross rails 3 are connected to a computing means, which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross-rail for simultaneous execution of multiple (at least two separate sections.
In particular, when the machine contains one longitudinal guide, and two cross rails with one laser is the head of each, the specified program when executing in said computing means can provide testicardines control of both laser heads, i.e. the management of the three coordinates for each laser head 4.
For operation (programming) of such computational tools can be used in computer-readable media designed for direct participation in the work of this computing means and containing a program, which when executed in the above-mentioned computing means provides independent control of each of these drives. The specific type used in this program is defined as the desired trajectory of the cutting, and the used programming language.
Software management tools that address these problems are known, for example, of the above-mentioned patent RF №86129. However, all known control systems, as all known machines for laser cutting, are intended for cutting only one part or one hole, while the machine of the present invention enables two or more laser heads on the same machine to operate independently from each other. This dramatically increases the speed of processing and (or) allows to get the details (holes) of various shapes, which extends the functionality of the machine.
The work machine according to the present invention is apparent from the above description. Sheet 5 of material is deposited on the base 1. In computational tool is introduced, the corresponding program, into which all lines of the required sections to cross rails 3 and the laser head 4 during its movement in the process in any case not experienced. These movements parallel to the plane of the sheet 5 (i.e. two-dimensionally) is carried by the actuator longitudinal displacement of the cross-rail and drives the horizontal movement of the laser head.
For example, if sheet 5 need to cut the door with the window, the sharp management program can be designed to first one (say, the left in figure 1 and 2) laser head 4.1 cut through the top door, and then passed to the cutting of one of the sides. At the same time, the second (right in figure 1 and 2) laser head 4.2 first cuts the window, especially its upper part, and then, upon completion of the cutting window, the second (right) laser head 4.2 starts around mid to penetrate the side (the one that already cuts through the first laser head 4.1) and then goes on to cutting the bottom side. At this time, the first cylinder 4.1 ceases to penetrate his side, moves to the other side of the parties is in that place, where the cutting was started the second (right) laser head 4.2, and cuts this side until the end, in the direction already cut the upper side of the door. The second laser head 4.2, after cutting the bottom side of the door is transferred to the cutting of the side, which remained nepropitannoy due to movement of the first laser head 4.1, and ends up cutting this side. The result is that both cross rails 3 does not face in the process, and the cutting time is reduced by more than doubled considering the fact that when cutting on a normal machine with one laser head needs some time on unproductive move the laser head from one section to another. As in the machine of the present invention when moving one cross-rail 3 with the corresponding laser head 4 is another laser head 4 can continue cutting sheet 5.
Of course, if necessary, non-cutting material any laser head 4 can be moved in height (i.e. the third coordinate) with the help of his drive vertical movement of the laser head.
Thus, in the above embodiment is performed simultaneously testicardines control of two laser heads, it just enhances the functional capacity is her as well as the acceleration of the cutting process.
As already noted, the description together with the drawings is not intended to limit the present invention disclosed variants of implementation. Scope of the present invention is defined by the attached claims with regard equivalents included in its independent item attributes.
1. Machine for laser cutting of materials containing base, at least one longitudinal guide, each of which is mounted on a base, at least two cross rails, each of which is installed on at least one of the longitudinal guides with the possibility of independent movement along this longitudinal guide through its own longitudinal displacement drive of the cross-rail, at least two laser heads, and on each of the cross rails installed in at least one of the laser heads with the possibility of independent movement on this cross-rail by means of its own drive horizontal movement and a private drive vertical displacement computing means that is connected to all the drives horizontal movement of the laser head, all drives vertical movement of the laser head and all actuators move the transverse direction of the Commissioner, and which is performed with the opportunity for independent software control each of the actuators horizontal movement of the laser head, drives the vertical movement of the laser head and drives the longitudinal displacement of the cross rail, each of the actuators of longitudinal movement of the cross rail, each of the actuators horizontal movement of the laser head and each of the actuators vertical movement of the laser head is made in the form of a linear motor that is installed along the corresponding direction of movement.
2. The machine according to claim 1, in which, in the case of one longitudinal rail and two transverse rails with one laser head, each of the computing means is configured to shestiseriynogo control both laser heads.
SUBSTANCE: laser beam of short-wave laser 1 is directed to reflecting rotary mirror 13, reflecting mirror 14 and, therefrom, into lens 10 on focusing lens 15, and, via central conical nozzle 5, in pulse mode with amplitude equal to thickness of material being cut, into cutting zone 17. Laser annular beam of long-wave laser 2 is directed to reflecting mirror 13 and, therefrom, to focusing lens 10, wherein beam is reflected by annular mirrors 11, 12 and, besides, directed via central conical nozzle 5 into cutting zone 17. Simultaneously, process gas is fed from gas feed system 8 into annular converging-diverging supersonic nozzle 6 with skewed edge 7 at outlet to effuse therefrom onto material being cut.
EFFECT: required cutting depth and high surface quality.
3 cl, 2 dwg
SUBSTANCE: preliminary construction of calibration curve of dependence of cutting depth of specimen of the specified metal or its alloy on parameters of incident laser radiation to surface is performed at monotonic increase in specific power of laser radiation from value of 0.1 J/cm2·s to the value at which through cutting occurs. Then, metal or its alloy is molten-through along cutting line with laser beam by moving the laser beam progressively at speed V, and at the same time its rotation with radius R is performed. Radius R and angular rotation speed of laser beam ω is chosen considering the cut width and radius of laser beam.
EFFECT: high cutting speed at effective use of laser beam energy.
4 cl, 3 dwg, 1 ex
FIELD: process engineering.
SUBSTANCE: invention relates to separation of semiconductor chip surface layer. In compliance with first version, focused laser beam is directed onto chip so that its focus is located at layer separation plane perpendicular to beam axis and displaced to scan layer separation plane in direction of chip exposed side surface and deep down to make continuous cutout. In compliance with second version, focused laser beam is directed onto chip so that focus is located in layer separation plane perpendicular to beam axis and displaced in said plane to produce non-overlapping local regions with disturbed chip structure topology and weakened atomic bonds. Said local regions are distributed over entire said plane. External effects are applied to layer being separated to destruct said weakened atomic bonds.
EFFECT: separation of lateral surface layers from semiconductor crystals.
9 cl, 14 dwg, 12 ex
FIELD: process engineering.
SUBSTANCE: proposed method may be used in nuclear power engineering and other branches of machine building. Proposed method comprises focusing laser beam at material and feeding protective inert gas into cutting zone. Inert gas is fed via nozzle at its outlet pressure of, at least, 3.5·10-5 MPa. Note here that laser beam with wavelength of 1.06-1.07 mcm is used and directed via said nozzle coaxially with its lengthwise axis.
EFFECT: higher efficiency and quality, ruled out metal corrosion.
2 cl, 1 dwg, 2 ex
FIELD: process engineering.
SUBSTANCE: method of moulding cells for vessels or bottles for bottle washing machines. Proposed method comprises the following stages: moulding cell blank 3a from synthetic material and machining it. Said machining includes material removal or dissection to produce structures required for functioning and/or hardening cell 3, and/or for reducing weight of said cell.
EFFECT: higher strength and quality of complex cells.
9 cl, 5 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to metal machining by laser beam. Proposed method comprises stages described below First step comprises making first bore with initial diameter and bore axis. Second step comprises displacing laser beam and rotating it about bore axis to produce intermediate bore aligned with initial bore but with larger diameter. Third step comprises displacing laser beam focus along bore axis and finishing said bore by pulsed laser beam.
EFFECT: boring in composite material with ceramic substrate, for example in gas turbine engine combustion chamber or vane.
11 cl, 6 dwg
SUBSTANCE: plate (7) is positioned parallel to first plate (5) and at close distance from it so, that outline of orifice (73a) is located opposite to outline of cut-out orifice (53a). Protective device (10) in form of plate of specific thickness with the third orifice (10a) and with outline set off inside relative to outline of second orifice (73a) is placed between two plates (5 and 7). Further, the first orifice is cut out.
EFFECT: prevention of melt metal hitting second orifice, of deviation of laser beam at cutting and of losses of density of laser beam power output.
7 cl, 4 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to cutting tools and may be used for cutting whatever materials. Proposed cutting tool comprises top and bottom parts that may be parted by separating appliances. At least, one of top and bottom parts comprises cutting device while top and bottom parts are retained together by magnets made up of first and second magnetic appliances arranged on top and bottom parts. Metal strip is arranged atop the cutting tool to joint first and second magnetic appliances to, at least, top or bottom part. Invention covers also the method of cutting with the help of above described tool.
EFFECT: improved control over cutting tool, better quality of cutting.
24 cl, 25 dwg
SUBSTANCE: method is realised by formation of hole for introduction and fixation of one ligature end in butt end surface of surgical needle without eye, made from stainless steel. Hole is made by irradiation of butt end of needle working piece, whose diametre is from 6 to 20 mcm larger than diametre of surgical needle, which constitutes less than 150 mcm, due to irradiation by one pulse of laser ray of specified duration, isolated from pulse radiated by laser, after which section, whose diametre is larger than needle diametre is removed. In other version of method duration of pulse separated from pulse radiated by laser is equal or less than 35 mcs. In third version of method realisation pulse, isolated from pulse radiated by laser if formed by multiple pulses of short duration.
EFFECT: group of inventions will make it possible to create holes of satisfactory quality in butt end of thin surgical needle, without puncture of side wall or hole bending.
4 cl, 5 dwg, 1 tbl
SUBSTANCE: pulse of ultrafast laser with picosecond or shorter pulse width is associated by time and spatially with a pulse of at least one auxiliary laser that differs from ultrafast laser. Auxiliary laser pulse is controlled in such a manner that it could change in time. In this process, material condition to be processed is changed reversibly using one auxiliary laser beam and changed irreversibly when auxiliary laser beam ultrafast laser beam are associated by time and spatially. Auxiliary laser generator includes electronic communication device which modifies laser beam pulse in time and focusing optical system for spatial association of ultrafast laser beam focal point generated by ultrafast laser generator with focal point of auxiliary laser beam associated with time and for focusing ultrafast laser beam and auxiliary laser beam.
EFFECT: increase in speed of ultrafast laser processing with ultrahigh accuracy.
8 cl, 6 dwg
FIELD: testing engineering.
SUBSTANCE: device comprises optical quantum generator, system for focusing the laser beam with the unmovable lens, and movable base for securing the object to be cut. The movable base is made of rotating platform mounted on the driving shaft of the mechanism for discrete control of the speed of rotation. The mechanism is made of an assembly of driven and driving pulleys connected by means of the driving belt. The rotating platform is provided with the model of the object to be cut. The driving belt that connects the driven and driving pulleys is made of a vibration insulation material. The driven shaft of the rotating platform is set in bearings, is provided with a mechanism for control of tension of the driving belt, and is mounted on the traverse gear.
EFFECT: decreased time and reduced power consumption of testing.
1 cl, 2 dwg
FIELD: method and apparatus for forming weakening lines in member of automobile lining covering devices with safety cushions in order to create one or more hinged flaps of window for spreading out pneumatic safety cushion when the last is pumped.
SUBSTANCE: method comprises steps of making notch in surface of lining member by means of cutting beam directed from source 12 onto said surface at moving lining member relative to source 12 according to predetermined pattern of notch; tracking cutting result by means of measuring beams irradiated by first pickup 26 and second outer pickup respectively placed in opposite sides relative to lining member 16; combining measuring beam of pickup 26 with cutting beam in such a way that to provide collinear combined segments on surface of lining member and to direct them constantly to the same points of notch pattern; controlling quantity of material removed by means of cutting beam in each point along pattern due to controlling notch cutting process with use of feedback signals generated by first 26 and second 20 pickups. Apparatus for performing the method includes source of cutting beam for making notch on surface of one side of lining member at directing cutting beam to said surface; drive unit imparting mutual relative motion of cutting beam source and lining member according to predetermined pattern; sensor unit for tracking thickness of remained material of lining member; device for combining beams; control unit for tracking process of cutting notch in each point along predetermined pattern and regulating cutting intensity of cutting beam for providing predetermined thickness of material of lining member. Sensor unit includes first inner pickup 26 and second outer pickup 20 arranged at mutually opposite sides of lining member 16 and directed towards each point of lining member to be notched. Inner pickup and cutting beam source are arranged at the same side relative to lining member.
EFFECT: possibility for making weakening lines during one pass at accurate reproducibility regardless of variation of cutting depth, cutting angle, patterns of notch, non-uniformity and color of material, texture of material surface and so on.
41 cl, 8 dwg
FIELD: different branches of machine engineering and metallurgy, possibly working products for modifying or preparing topography of article surface or raw materials.
SUBSTANCE: method comprises steps of relatively moving article and powerful beam in crossing direction in order to act upon several positions on article by means of said beam; at each position moving beam relative to article according to predetermined way; melting material of article and moving it by action of powerful beam for forming recesses or openings; joining article having prepared surface with target part. Product formed by such process has predetermined surface roughness.
EFFECT: possibility for producing article with predetermined surface roughness.
46 cl, 11 dwg, 1 tbl
FIELD: laser working, namely laser cutting, possibly in machine engineering for effective and high-accuracy manufacture of complex-contour parts from sheet blank.
SUBSTANCE: method comprises steps of measuring mean statistic value of limit bending of blank 7; then fastening and tensioning blank at providing tension stresses determined by relation: σtχ ≤ σe GV, where σt - tension stresses created in blank, MPa; χ - thermal conductivity of blank material, mm2/s; σe - elastic limit of blank material, MPa; G - mean statistic value of limit bending of blank, mm; V - cutting speed, mm/s. Focused laser irradiation 1 with preset focal length and gas flow 6 are fed onto sheet blank 7 through nozzle of cutter 5 for moving blank along predetermined contour. Apparatus includes source of laser irradiation 1, mirror 3, cutter 5, platform 8 with clamp 9 for blank 7. Platform 8 is mounted on coordinate table 11 and it includes threaded guides 10 for tensioning blank; said guides are in the form of screw gages with left- and right-hand threads. Coordinate table is number program controlled by system 12 connected with laser irradiation source 1 and with information-computing system 13 through program module 14 correcting contour of cutting in proportion to deformations created in material.
EFFECT: enhanced accuracy of laser cutting due to stable position (on the whole surface of sheet blank) of plane of focusing lens of cutter at cutting process, practically constant gap value between nozzle of cutter and blank surface.
2 cl, 1 dwg, 1 ex, 1 tbl
FIELD: processes and equipment for gas-laser cutting of titanium and its alloys, possibly in different branches of power engineering and machine engineering.
SUBSTANCE: method is realized due to using technological gas being mixture of argon and oxygen and containing 15 -25% of oxygen. In order to cut metal of predetermined thickness, oxygen content in technological gas is determined depending upon cutting speed and quality of metal surface according to technological demands for cutting quality at maximally admissible cutting speed.
EFFECT: improved quality of cutting as oxygen content of technological gas in preset range completely prevents occurring of type-metal or makes it rare and small.
1 dwg, 1 ex
FIELD: physics; lasers.
SUBSTANCE: present invention pertains to laser technology, particularly to the method of cutting pyrographite using laser, and can be used in instrument making, and mainly in electronics. Laser radiation with central mode TEM00 is focused on the material. The focus of the beam is directed on the surface of the material, while keeping the density of the incident power within the 106-107 W/cm2 range. The work piece is moved at speed ranging from 1 to 3 mm/s. The cutting process parameters are determined by the expression , where K is the coupling factor of parameters, chosen from the condition 7·10-5≤K≤12·10-5; f is the repetition frequency of the laser radiation, τ is the pulse duration of the laser radiation, d is the diameter of the spot of focused laser radiation, and h is the thickness of the work piece. A laser with yttrium aluminium garnet active element, with controlled distribution of power in the section of the beam is used.
EFFECT: high quality of cutting material with a smaller heat affected zone during optimum process modes.
2 cl, 1 ex
FIELD: technological processes.
SUBSTANCE: cutting of sheet materials is realised with the help of cut sheet surface exposure to oxygen jet that flows from supersonic nozzle and laser radiation. Laser radiation is focused so that axis of beam coincides with the nozzle axis, beam focus is located inside the nozzle, and beam diameter on surface of cut plate exceeds output diameter of nozzle. Beam heats the metal to the temperature that is higher than burning temperature but is lower than melt temperature. Thickness of cut sheets is set by condition H/Da≤(0.8-1.2)P/P∞+5, where H is thickness of cut sheet, mm, Da is output diameter of nozzle, mm. Certain selection of cutting parameters, namely value of pressure in nozzle chamber and gap size between output section of nozzle and cut sheet, makes it possible to increase quality of cutting surface. Selection is done based on the following conditions: P/P∞=6.15/(D0/Da-A)-7.7 and δ/Da=1-2, where P is excess gas pressure in chamber, MPa; P∞ is pressure of environment, MPa; A=0.2-0.3; D0 is critical diameter of gas nozzle, mm; Da is output diameter of gas nozzle, mm; δ is gap size between output section of nozzle and sheet surface, mm.
EFFECT: higher quality of cutting surface.
1 ex, 3 dwg
SUBSTANCE: device includes bearing structures interconnected with gear-driven means for processing element relocation and program control system. Bearing structures are made as a support and means for processing element relocation is made as a rotary lever system including at least two levers being interconnected by one end with each other by means of hinge joint. The second end of the first lever is connected by means of hinge joint with support and the second end of the second lever has processing element mounted thereon. Another version includes bearing structures interconnected with gear-driven means for processing element relocation and program control system. To achieve the same technical result bearing structures are made as a support capable to move along guide ways, means for processing element relocation is made as a rotary lever system including at least two levers being interconnected by one end with each other by means of hinge joint. The second end of the first lever is fixed rigidly to the support and the second end of the second lever has processing element mounted thereon.
EFFECT: extension of manufacturing capability and increase of positioning accuracy.
10 cl, 4 dwg
FIELD: process engineering.
SUBSTANCE: proposed device comprises focusing lens (1), casing (2), branch pipe (3) for laser beam to pass there through at preset aperture angle and nozzle (5) arranged around aforesaid branch pipe and inclined to the lens optical axis to form gas supersonic jets. Branch pipe (3) has annular grooves (4) to make chamber for gas to be distributed between the nozzles. Axes of nozzles (5) intersect the lens axis at the point which makes that of intersection between processed surface and focusing lens axis to exploit entire kinetic power of supersonic jets onto processed surface.
EFFECT: higher efficiency of processing due to increased efficiency of gas mix effects.
FIELD: technological processes.
SUBSTANCE: invention is related to method and device for automatic control of laser cutting or hole drilling process. Method includes measurement of radiation reflected from zone of processing. Minimum value of reflected radiation amplitude is defined, compared to specified amplitude, and control of laser radiation capacity and/or cutting speed are controlled. Device comprises laser with power supply unit, rotary mirror, focusing lens, 2-coordinate table for fixation of processed part, unit of 2-coordinate table control, photodetector of secondary radiation and transformer of secondary radiation signal from photodetector, connected to unit of laser power supply and unit of 2-coordinate table control.
EFFECT: improved quality and capacity of through laser processing of materials.
2 cl, 1 dwg