CN109158771A

CN109158771A - A kind of ultrahigh speed laser cutting head and its application method

Info

Publication number: CN109158771A
Application number: CN201811162319.9A
Authority: CN
Inventors: 徐强
Original assignee: Guangzhou New Laser Equipment Co Ltd
Current assignee: Guangzhou New Laser Equipment Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2019-01-08
Anticipated expiration: 2038-09-30
Also published as: CN109158771B

Abstract

The invention discloses a kind of ultrahigh speed laser cutting head and its cutting methods, it is installed on existing cutting machine moving track, for mobile cutting head on a large scale in such a way that parallel track is mobile, and by the reflection of the first dimension positioning mirror and the second dimension positioning mirror come positional dissection point quick in small-scale cutting region, cutting laser is cut straight down finally by collimation cutting mirror.The in-plane displancement of laser is distributed by four dimensions.First dimension positioning mirror and the second dimension positioning mirror are significantly faster than overall movement of the track to cutting head to the control speed of cutting laser displacement, so ultrahigh speed cutting is realized in the orientation for being used to change at a high speed in small range plane cutting laser.

Description

A kind of ultrahigh speed laser cutting head and its application method

Technical field

The present invention relates to large-scale cutting equipment technical fields, the cutting equipment skill in particular by laser as cutting means Art, and in particular to a kind of superfast ultrahigh speed laser cutting head and its application method.

Background technique

In traditional industry and modern industry, cutting technique is all an indispensable skill in national economy every field Art, and as the requirement of size and geometry to workpiece is more and more diversified, many workpiece are made by cutting , status of the cutting technique in national economy also seems to more and more important.

Traditional cutting technique is probably divided into 2 classes, first is that physics cutting, second is that chemical cleavage.

Traditional crush-cutting, lathe and the numerically controlled lathe occurred later and smooth turning lathe are all to belong to physics cutting class Type, such as gantry cutting machine produce geometry in particular and ruler by cutting using the higher cutter of hardness to former material Very little workpiece.This kind of cutting equipment is more demanding to cutter, and the sharp and hardness of cutter influences the precision of cutting, as traditional Cutting mode is that have certain insufficient, and cutting efficiency is difficult to improve first, is secondly seemed for the cutting of high rigidity former material It grabs the flap and sees elbow, the hardness requirement of cutter head is further increased, cost is caused to greatly increase；And to processing random geometry Workpiece seems inadequate.

High-pressure water knife cutting machine and a kind of physics cutting, principle be using high pressure persistently project water flow to former material into Row cutting, its advantage is that at low cost, environmental protection, disadvantage is it is obvious that be exactly too low for the cutting efficiency of high rigidity former material.

Chemical cleavage mode usually has the mode of high temperature sintering and chemical attack, and common gas flame cuttiug is to utilize high temperature Flame sprays a kind of mode for being cut to former material, its advantage is that easy to use, disadvantage first is that environmental issue is serious, two It is because calcination melts by the way of flame, the residual temperature of flame can impact the edge of cutting former material, not be suitable for Hi-precision cutting field.Chemical attack is more used to etch field, and this will not be repeated here.

And technical field of the invention, it is using laser cutting, laser cutting is also a kind of mode of high temperature sintering, different It is very good in the cumulative precision of gas flame cuttiug, laser, can accomplish that route is cut in only calcination, without or hardly shadow It rings and arrives route edge, opposite gas flame cuttiug, precision is very high, and energy conservation and environmental protection, and cutting efficiency is also very high.

In addition, by material point, having leather, paper, timber, the soft material such as rubber, there are also stone materials, steel from cutting former material Plate, alloy sheets etc. are expected firmly, according to different former materials, suitable cutting mode, such as gas flame cuttiug are selected to be often suitable only for metal Type former material.

By former material shape point, former material is usually the plate (or planar) of rule, and rare other shapes are such as blocky.And plate Former material according to thickness come point, also have many differences and a difference, thicker plate former material, cutting technique is required it is higher, it is on the contrary It is then low.

Such as the former material that is very thin and easily cutting to paper, leather, cloth etc., cutting difficulty is little, but usually wants Refinement degree and cutting efficiency are very high；In addition for the requirement of irregular cutting profile, at this point for such former material, using certainly Dynamicization laser cutting is undoubtedly a kind of selection of cutting mode well.Certainly, the mode of lathe will not be too poor.

And for sheet metal, it is also with greater advantage using laser cutting；It cuts compared to gas flame cuttiug, laser It is more preferable to cut precision, compared to lathe cut, laser cutting cost is lower, more efficient compared to high pressure waterjet.Laser cutting Because of its energy-saving and environment-friendly characteristic, gradually deeply, the specific gravity in shared cutting field is increasing for application in recent years.

Existing laser cutting technique, such as CN201210047489.9 and CN201610383552.4, structure are usual Including Cutting platform, plate is cut for placing, including laser generator is set on platform for generating incisory laser Multidimensional guide rail is set, for moving cutting head, by the way that by laser aiming to cutting head, Self cleavage head projects laser, and laser is beaten in plate On material, the cutting of calcination formula is carried out to plate, by mobile cutting head, mobile cutting track, completes specific shape on plate Cutting.The problem of wherein encountering, has:

1. the laser of laser generator outgoing is columnated light beam, or has the small angle of divergence, go out in laser by cutting head It before penetrating, needs to carry out laser certain focusing, falls in focus on plate, focal point control is more accurate, and the precision of cutting is higher. In the prior art, such as CN201210149011.7 and CN201120275255.0 is common dedicated laser cutting head, is passed through Auto-focusing is set in cutting head, repeatedly focuses, move the technical solutions such as focus, defocus, to realize Precision of Laser Cutting It improves.

2. from existing laser cutting technique scheme mentioned above, we it can be seen that, all industrialization laser On the whole cutting includes the cutting head that change location is constantly moved on plate, the laser of cutting head is all to cut straight down It cuts.This is because the plate of cutting is usually to have a dot thickness, especially sheet metal, necessarily keep swashing in the cutting trends of the times The vertical plate of light projects, and just can guarantee that the edge of cutting is flat from vertical, as shown in Figure 1, projected from blanking punch group 100 Light 101 is cut, in the case where vertical plate 110, cut edge 111 is vertically flat, if cutting light 101 cut without vertical plate 110, then its cut edge 112 is not vertically straight；In addition, from cutting path, The cutting thickness of cut edge 111 is H, the substantially equal to thickness of plate, and the cutting thickness of cut edge 112 is D, and D is big In H, and the gradient for cutting light is bigger, and D is bigger；The problem that undoubtedly will cause series, is the cutting effect of plate first Bad, there are also cut power consumption increase, efficiency decline etc..It can be seen that control laser does vertical cutting, it is very in laser cutting field Important, except the non-sacrificial above cutting effect, efficiency etc. or institute's cutting material are thin material, such as paper jam, cloth etc., institute The former material of cutting is plane materiel, such as almost without the paper of thickness, in the negligible situation of thickness, can not have to consider with Upper problem, cutting laser oblique can be cut.

3. the important R&D direction that cutting efficiency is always industry how is improved, after all in the control of automatic laser cutting Under, if 2 times of efficiency can be improved, that means that 1 month originally engineering only needed for 2 week；If 4 times of effect can be improved Rate then only needed for 1 week, if 10 times of efficiency can be improved, only needed can be completed within 3 days, it is seen that efficiency is extremely important.Traditional Cutting machine, the factor of limit efficiency mainly have at 2 points, first is that the power of laser, second is that the speed of cutting.The wherein function of laser Rate can directly increase, directly affect be exactly cost rising, improve the mode of laser power or fairly simple.And it leads Cutting speed is restricted, is in fact exactly the movement speed of cutting head, is in the prior art usually to being erected on Cutting platform Multidimensional sliding rail improve, to improve the movement speed of cutting head, or Cutting platform is improved, makes Cutting platform It is mobile that multidimensional can be done, cooperate the movement of cutting head to improve the opposite speed of travel of cutting head.

But platform would generally be bigger plus the weight of plate, it has not been convenient to the compound movement of high speed variation is done, so greatly The platform of part cutting machine is not provided with movement.Similarly, cutting head should minimize quality, to reduce mobile inertia.

In addition, if the pattern of cutting is the dull geometry of comparison, so that the mobile control of multidimensional track is simpler If list, then cutting speed undoubtedly can be more more satisfactory；But if the pattern of cutting is more complicated, complicated mobile control is needed System, then certainly will undoubtedly will be greatly reduced cutting speed.For example, one square pattern of cutting, and one cartoon character figure of cutting Case, the latter undoubtedly require the motion track of cutting head higher, and the cutting speed of the latter is significantly less than the former speed of cutting, at This can be multiplied.

4. the change of laser stroke and the synergic adjustment problem of focal length, specifically, because cutting head is persistent movement State, the optical path of laser, the stroke for being emitted to cutting head from laser generator be it is indefinite, in order to solve this problem, need The stroke of laser is calculated in real time, and the focus adjustment for controlling cutting head keeps dynamic change, just can guarantee that cutting focus is fallen in On plate.Its control mode has certain complexity, it is also necessary to fully consider that the inertia of each machinery is different, to the anti-of control signal Feedback has different delays.In addition, corresponding laser is relatively large, weight because the laser power for cutting is usually very big Amount is very big, thus laser is usually irremovable.There is inventor it is contemplated that by the position between laser and cutting head It does relatively fixed, i.e., laser must be made to move together with cutting head, to solve the change of laser stroke and the association of focal length Same regulation problem, but it is obvious because the weight of laser is too big, and cause the speed of travel of cutting head and laser too slow, sternly Ghost image rings efficiency.

Summary of the invention

The purpose of the present invention be located at solve the problems, such as it is above-mentioned encounter in the prior art, design a kind of ultrahigh speed laser cutting head And its application method, which can be used for installing/it replaces on existing some laser cutting machine equipments, cutting head of the invention It can reach very high cutting efficiency, there is improved efficiency at double to existing cutting equipment.

One of scheme used by purpose to realize the present invention are as follows: a kind of ultrahigh speed laser cutting head is cut applied to laser It cuts in equipment, comprising: shell, the side of shell are equipped with the receipts unthreaded hole of laser, inject in shell for receiving cutting laser；

Along the path of cutting laser, aperture plate, activity focusing lens set, 2 dimension positioning mirrors are successively arranged in shell Mirror is cut with collimation；

The aperture plate is equipped with the aperture along light path therethrough, is equipped with a circle around aperture periphery and receives light slot, receives light Slot position is in, towards the side for receiving unthreaded hole, the slot bottom for receiving light slot is lower than aperture plate surface in aperture plate；

The activity focusing lens set includes at least a convex lens and a concavees lens, and convex lens and/or concavees lens are along optical path It moves back and forth to adjust the cutting focal length of cutting laser；

2 dimensions positioning mirror is followed successively by the first dimension positioning mirror and the second dimension positioning mirror, the first dimension positioning mirror Mirror is transposed by motor driven reciprocating rotation with the second dimension, and the rotation axis of 2 dimension positioning mirrors intersects；

The collimation cuts mirror, is located at below the second dimension positioning mirror, for by the cutting laser of oblique injection to normal direction Direction refraction is projected after so that the angle for cutting laser and normal orientation is become smaller.(the normal orientation of cutting laser and collimation cutting mirror Angle becomes smaller, and can be as small as 0 degree, parallel with normal direction at this time.)

Preferably, the activity focusing lens set includes movable focusing lens and fixed focusing lens, and movable focusing lens use institute Concavees lens are stated, fixed focusing lens use the convex lens；Fixed focusing lens are fixed in the optical path of cutting laser, and activity focusing Direction linear reciprocating motion of the mirror along cutting optical path.

It preferably, further include the focusing lens hanger of half moon, movable focusing lens are fixed on the focusing of half moon On lens hanger, focusing lens hanger, which is fixed on, focuses on sliding block, and focusing sliding block is movably arranged on focusing sliding rail, focusing sliding rail and tune Burnt sliding block is mutually matched connection, and focusing sliding rail is arranged along the direction parallel with cutting laser optical path, and focusing sliding block can be driven in Fast reciprocating slides on sliding rail, and focusing lens hanger and movable focusing lens is driven to follow and reciprocatingly slide；

Further include dynamic focusing motor, is vertically mounted in cutting head, it is solid in the rotation axis of dynamic focusing motor Surely be connected with the first swing connecting bar, first swing connecting bar one end is fixedly connected with the rotation axis of dynamic focusing motor, the other end with One end axis of second swing connecting bar connects, and the other end of the second swing connecting bar then connects with focusing one side axle of sliding block；First swing connecting bar It is parallel with the dynamic focusing rotating shaft direction of motor with the direction of the connecting shaft of the second swing connecting bar, the second swing connecting bar and focusing The direction of the connecting shaft of sliding block is parallel with the dynamic focusing rotating shaft direction of motor.

Preferably, the first dimension positioning mirror is connected on the output shaft of the first dimension positioning motor, fourth dimension degree tune Position is connected on the output shaft of the second dimension positioning motor；The output shaft and the second dimension positioning motor of first dimension positioning motor Output shaft form certain space angle, the first dimension positioning motor and the second dimension positioning motor are fixed by positioning motor Seat installation is fixed.

Preferably, the aperture is surrounded by the medial surface of limit aperture, and the medial surface for limiting aperture is also formed as diaphragm Hole inner wall；It limits aperture and is higher than the bottom surface for receiving light slot, receive the receipts light slot inner wall of light slot and the transition of aperture plate front perpendicular to aperture plate Surface, limit aperture outer wall are formed as receiving light slot and limit the wall surface of transition between aperture, and the wall surface is perpendicular to aperture plate surface.

Preferably, the bottom plate for cutting casing is equipped with positioning laser exit window, and positioning laser exit window is located at the second dimension Below degree positioning mirror, the cutting laser by the positioning mirror reflection of the second dimension is shot down from positioning laser exit window；

It further include cutting head up and down, the upper end opening of cutting head is installed below positioning laser exit window, cutting The lower ending opening of mouth is smaller than upper end；

The collimation cutting mirror is installed in the inner cavity of cutting head, and the collimation cutting mirror is convex lens.

Preferably, the side of the cutting head is equipped with stomata, and for connecting tracheae, in cutting operation, gas is from stomata It is sprayed into cutting head inner cavity and from cutting head lower ending opening.

Two of scheme used by purpose to realize the present invention are as follows: a kind of application method of ultrahigh speed laser cutting head, packet It includes:

(1) the cutting laser that laser issues is adjusted to the first dimension orbital direction using fixed optical path reflecting mirror and is put down Row projects；

(2) the second dimension track arranged in a crossed manner on the first dimension track, the second dimension track can be along the first dimension tracks Direction linear reciprocating motion；Meanwhile it being set in the junction of the second dimension track and the cutting laser for being parallel to the first dimension track Activity optical path reflecting mirror is set, and changing cutting laser direction using activity optical path reflecting mirror is to be parallel to the second dimension track side To；

(3) cutting head is installed on the second dimension track, cutting head can be along the second dimension orbital direction reciprocating linear Movement；First dimension positioning mirror and the second dimension positioning mirror are installed on cutting head, transposed mirror and the using motor to the first dimension Two-dimensions positioning mirror carries out reciprocating rotation control, the pivot center of the first dimension positioning mirror and the rotation axis of the second dimension positioning mirror Line intersects setting；It is received using the first dimension positioning mirror and is parallel to the cutting laser of the second dimension track and reflexes to second Dimension positioning mirror；

(4) the cutting laser received is reflected down to Cutting platform direction using the second dimension positioning mirror；

(5) the setting activity focusing lens set on the optical circuit path of cutting laser, and utilize stroke sensor and controller The light path that cutting laser is incident upon different location on Cutting platform is calculated in real time, so that control activity is focused, lens set is to real-time adjustment Cut the cutting focus of laser.

(6) collimation is cut mirror to be set to below the second dimension positioning mirror, cuts mirror for the cutting of oblique injection using collimation Laser is reflected to normal orientation, so that the angle for cutting laser and normal orientation is become smaller or be parallel to normal orientation, is then penetrated again To Cutting platform.

Preferably, using the first dimension positioning mirror and the second dimension positioning mirror control cutting laser, mirror is cut in collimation and is covered It is persistently cut in the cut coverage of lid, while controlling the first dimension track and the mobile cutting head of the second dimension track, collimation is cut The central point for cutting mirror covering is close toward cut point direction in real time.

Preferably, when the central point and cut point of collimation cutting mirror covering are close close to stopping after certain distance, when cutting Secondary control is close again after central point certain distance of the cutpoint again far from collimation cutting mirror covering.

Preferably, Cutting platform is divided into several cutting areas and the first dimension positioning mirror and the second dimension positioning mirror association The corresponding cutter unit region with reflected range；

It first controls the first dimension track and the movement of the second dimension track and cutting head is moved to the upper of unit area to be cut Side, then control the first dimension positioning mirror and the second dimension positioning mirror and reflect cutting laser along cutting track, it is cut until completing this The cutting of unit area is cut, then controls cutting head and is moved to next cutter unit region, loop control is cut according to this.

Ultrahigh speed laser cutting head of the present invention and its cutting method are installed on existing cutting machine moving track, pass through The mobile mode of parallel track transposes mirror by the first dimension and the second dimension is transposed mirror for mobile cutting head on a large scale Reflection carrys out the quick positional dissection point in small-scale cutting region, makes to cut laser straight down finally by collimation cutting mirror Cutting.The in-plane displancement of laser is distributed by four dimensions.First dimension positioning mirror and the second dimension positioning mirror are to cutting laser The control speed of displacement is significantly faster than overall movement of the track to cutting head, cuts so being used to change at a high speed in small range plane Realize ultrahigh speed cutting in the orientation for cutting laser.By the combination of a wide range of+a small range, cutting speed can reach existing cutting and set 10~40 times or more standby of cutting speed is promoted.

Detailed description of the invention

Fig. 1 relationship between cut direction of the present invention and the plate thickness illustrates schematic diagram

Fig. 2 is the schematic perspective view of high-speed cutting equipment of the present invention

Fig. 3 is another schematic perspective view of high-speed cutting equipment of the present invention

Fig. 4 is that high-speed cutting equipment of the present invention hides the schematic perspective view after organ cover

Fig. 5 is the structural schematic diagram of linear motor track in the embodiment of the present invention

Fig. 6 is the laser optical path schematic diagram of high-speed cutting equipment of the present invention

Fig. 7 is the structural schematic diagram of pedestal in the embodiment of the present invention

Fig. 8 is the structural schematic diagram of Cutting platform in the embodiment of the present invention

Fig. 9 is the portion the Q enlarged drawing in Fig. 8

Figure 10 is the structural schematic diagram of fixed optical path adjustable plate in the embodiment of the present invention

Figure 11 is the structural schematic diagram for going out shaven head of laser in the embodiment of the present invention

Figure 12 is the schematic diagram of internal structure for going out shaven head of laser in the embodiment of the present invention

Figure 13 is the structural decomposition diagram for going out shaven head of laser in the embodiment of the present invention

Figure 14 is the structural schematic diagram of the second dimension linear motor track and cutting head in the embodiment of the present invention

Figure 15 is another angle schematic diagram of the structure of the second dimension linear motor track and cutting head in the embodiment of the present invention

Figure 16 is the structural schematic diagram of activity optical path bracket in the embodiment of the present invention

Figure 17 is the schematic diagram of internal structure of cutting head in the embodiment of the present invention

Figure 18 is the structural schematic diagram of the main light path part of cutting head in the embodiment of the present invention

Figure 19 is the structural schematic diagram of the aperture plate of cutting head in the embodiment of the present invention

Figure 20 is the structure schematic diagram of the aperture plate of cutting head in the embodiment of the present invention

Figure 21 is the light channel structure schematic diagram in the embodiment of the present invention inside cutting head

Figure 22 is the structural schematic diagram of the dynamic focussing module of cutting head in the embodiment of the present invention

Figure 23 is the structural schematic diagram in the scanning window direction of cutting head in the embodiment of the present invention

Figure 24 is the structural schematic diagram of cutting head in the embodiment of the present invention

Figure 25 is the schematic diagram of another direction that mouth structure is cut in the embodiment of the present invention

Figure 26 is the another direction schematic diagram that mouth structure is cut in the embodiment of the present invention

Figure 27 is cutting head and cutting head cutting optical path schematic diagram in the embodiment of the present invention

The corresponding structure of label in the present invention is entitled:

Blanking punch group 100 cuts light 101, plate 110, cut edge 111,112；

Pedestal 1, waste port 11, Cutting platform 12, first straight line motor track 31, second straight line motor track 32, third Linear motor track 33, laser bench 401, laser 40, shaven head 4, fixed optical path reflecting mirror 5, fixed optical path pedestal 52 are fixed out Optical path adjusting plate 51, activity optical path reflecting mirror 6, activity optical path pedestal 62, movable optical path adjusting plate 61, cutting head 7, first straight line The organ cover 311 of motor track, the organ cover 321 of second straight line motor track, the organ cover 331 of third linear motor track；

The concave truss 312,322,332 of linear motor track, the magnetic sheet 313,323,333 of linear motor track, straight line The mover 315,325,335 of motor track, the mover stroke inductor 316,336 of linear motor track, the first mounting plate 3331, the second mounting plate 3332, stroke measurment sensor 371, stroke measurment sensor bar 381, preposition vane 372, preposition biography Sensor 382, postposition vane 373, postposition sensor 383 cut head frame 733, the receipts unthreaded hole 70 of cutting head；

Platform outline border 121, grizzly bar 13, grid cutting edge of a knife or a sword 131；Fixing threaded hole 512 adjusts screw hole 511；The first of activity optical path pedestal Side 621, the second side 622 of activity optical path pedestal, the third side 623 of activity optical path pedestal, the first L-type fixed frame 63, Second L-type fixed frame 661, the fixing threaded hole 6611 of the second L-type fixed frame, the fixing threaded hole 624 of activity optical path pedestal, activity The side at the back side 611 of optical path adjusting plate, the center adjustment screw hole 612 of movable optical path adjusting plate, movable optical path adjusting plate adjusts spiral shell Hole 613；

Flanged plate 43, flange hole 431, selective reflecting mirror 42, indication laser 41, the adjustment seat 411 of indication laser, The adjusting spring 412 of indication laser, first piece of group 44, second piece of group 45, the mounting hole 452 of indication laser, indication laser Adjusting screw hole 453, the light hole 451 of second piece of group, single-surface mirror installing port 455, the light well 441 of first piece of group；

Cutting head backboard 701, cutting head bottom plate 702, aperture plate 71, the fixing threaded hole 711 of aperture plate, the diaphragm of aperture plate Hole 710, aperture plate front 712, aperture back 713 receive light slot 714, limit aperture 715, receive light slot inner wall 7140, limit outside aperture Wall 7151, aperture inner wall 7152；

Tabula rasa 720 is protected, motor 722 of dynamically focusing, the fixing seat 721 of dynamic focusing motor, the rotation of dynamic focusing motor Axis 7220, the first swing connecting bar 723, the second swing connecting bar 724, sliding rail 726 of focusing, sliding block 725 of focusing, lens hanger of focusing 7250, the sliding slot 7260 for sliding rail of focusing, movable focusing lens 727, fixed focusing lens 730, fixed focusing frame 73；

First dimension positioning mirror 752, the first dimension positioning motor 75, third dimension positioning connector 751, the positioning of the second dimension Mirror 762, the second dimension positioning motor 76, fourth dimension degree positioning connector 761, motor fixing seat 74 of transposing；Positioning laser exit window 7020；

Shoot laser 400 cuts laser 401, the first collimation cutting laser 401', and the second collimation cuts laser 401 ", the Three collimation cutting laser 401 " ', cutting area 1100；

Cutting head 8, collimation cutting mirror 9, cutting head inner cavity 80, cutting head upper end 81, cutting head lower end 82, stomata 83, out Light mouth 84.

Specific embodiment

Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:

Embodiment one

A kind of ultrahigh speed laser cutting head of the present embodiment, including shell hide cutting head 7 as shown in Figure 17 and Figure 18 Partial shell, it can be seen that cutting head backboard 701 and cutting head bottom plate 702 are equipped with several control electricity on cutting head backboard 701 Road plate, circuit board are equipped with conventional control driving circuit.The incident sequence of unthreaded hole 70, cutting are received from cutting head along laser Aperture plate 71, movable focusing lens 727, fixed focusing frame 73 and the first dimension positioning mirror 752, the second dimension tune are successively arranged in head Position mirror 762, positioning laser exit window 7020 and cutting head 8.

As illustrated in figures 19 and 20, positive 712 one end of aperture plate are equipped with fixing threaded hole 711, for installing constant aperture plate 71, the aperture plate other end is equipped with aperture 710, and aperture 710 is through aperture plate front 712 and aperture back 713.Aperture 710 are surrounded by the medial surface of limit aperture 715, and the medial surface of limit aperture 715 is also formed as aperture inner wall 7152.Positioned at hole The side in diameter plate front 712 is equipped with the receipts light slot 714 for being centered around 715 outside of limit aperture, and the slot bottom for receiving light slot 714 is lower than aperture plate Front 712 and limit aperture 715 receive the receipts light slot inner walls 7140 of positive 712 transition of light slot 714 and aperture plate perpendicular to aperture plate just The surface in face 712, limit aperture outer wall 7151 are formed as receiving light slot 714 and limit the wall surface of transition between aperture 715, and the wall surface is vertical In the surface in aperture plate front 712, the surface that 714 bottom surface of light slot is parallel to aperture plate front 712 is received.It cuts laser or instruction swashs Light is injected in the aperture 710 of aperture plate after unthreaded hole 70 is injected from positive 712 sides of aperture plate from receiving for cutting head, and from aperture It projects at the back side of plate.

Under normal circumstances, laser can pass through aperture, but unexpected vibration occurs in the debugging of equipment initial stage and equipment When dynamic, aperture plate is arranged in order to protect cutting head internal structure not damaged by the laser burnout of unexpected sideslip in laser meeting sideslip, By being made with certain thickness steel plate.Aperture plate front is equipped with limit aperture and receives light slot, after extra light runs out of aperture, Limit aperture can be fallen into and received in light slot；Limiting aperture is the thin thin raised brim of a circle, and extra light " can be reamed " by limit aperture, make Light, which enters, receives light slot bottom, absorbs part light by receipts light groove bottom, scattering part light splitting, the wide part in the part scattered is again by receipts light Groove sidewall sponges, to protect cutting head internal structure well.

Figure 17, Figure 18, Figure 21 and Figure 22 are seen again, and the laser light incident across aperture plate to movable focusing lens 727, focus by activity Mirror 727 is usually concavees lens (or convex lens), is fixed on the focusing lens hanger 7250 of half moon, lens hanger of focusing 7250 are fixed on focusing sliding block 725, and focusing sliding block 725 is movably arranged on focusing sliding rail 726, have sliding slot on sliding rail of focusing 7260 are mutually matched and connects with focusing sliding block 725, and focusing sliding rail 726 is arranged along the direction parallel with laser optical path, focusing sliding block 725, which can be driven in fast reciprocating on sliding rail, slides, and drive activity focusing lens 727 and fixed focusing lens 730 generate distance change, To change the focal length height of laser cutting.Further include dynamic focusing motor 722, be vertically mounted in fixing seat 721, The first swing connecting bar 723,723 one end of the first swing connecting bar and dynamic are fixedly connected in the rotation axis 7220 of dynamic focusing motor The rotation axis 7220 of focusing motor is fixedly connected, and the other end and one end axis of the second swing connecting bar 724 connect, the second swing connecting bar 724 other end then connects with focusing 725 1 side axle of sliding block.The connecting shaft of first swing connecting bar 723 and the second swing connecting bar 724 Direction is parallel with dynamic focusing 7220 direction of rotation axis of motor, the second swing connecting bar 724 and the connecting shaft of focusing sliding block 725 Direction is parallel with dynamic focusing 7220 direction of rotation axis of motor.It is equipped with shield tabula rasa 720 on the outside of focusing sliding rail 726, prevents from cutting Cut unexpected injury of the scattering to human eye of laser.

In the rear end of movable focusing lens 727, fixed focusing lens 730 are equipped with, are fixed in optical path by fixed focusing frame 73； Fixed focusing lens 730 are usually convex lens (or concavees lens).

It is successively arranged the first dimension positioning mirror 752 and the second dimension positioning mirror 762 in the rear end of fixed focusing lens 730, is cut Laser or instruction laser are cut after fixed focusing lens 730, was incident on the mirror surface of the first dimension positioning mirror 752 before this, then First dimension transposes mirror 752 again by the mirror surface of laser reflection to the second dimension positioning mirror 762, and the second dimension transposes mirror 762 again By laser reflection from positioning 7020 directive cutting head 8 of laser exit window.The first dimension positioning mirror 752 and the positioning of the second dimension Mirror 762 can be glass mirror or the aluminium alloy mirror for being coated with reflectance coating, and the first dimension mirror 752 of transposing is transposed connector by third dimension 751 are connected on the output shaft of the first dimension positioning motor 75.Second dimension positioning mirror 762 passes through fourth dimension degree positioning connector 761 are connected on the output shaft of the second dimension positioning motor 76.The output shaft and the second dimension tune of first dimension positioning motor 75 Certain space angle is formed between the output shaft of position motor 76, in the present embodiment, angle is 90 degree, in other embodiments In, it can also be other angles.First dimension positioning motor 75 and the second dimension positioning motor 76 pass through positioning motor fixing seat 74 installations are fixed.

As shown in figure 23, on cutting head bottom plate 702, corresponding first dimension positioning mirror 752 and the second dimension positioning mirror 762 Position is equipped with positioning laser exit window 7020, the laser transposed by the first dimension positioning mirror 752 and the second dimension positioning mirror 762 It projects from positioning laser exit window 7020 to cutting head 8.

As shown in Figure 24 to Figure 26, the upper center of cutting head 8 has big opening, and cutting head upper end 81 is installed on positioning and swashs 7020 lower section of light exit window, laser have big opening part from the upper center of cutting torch 8 after the positioning injection of laser exit window 7020 It injects in cutting head inner cavity 80.Be equipped in cutting head inner cavity 80 collimation cutting mirror 9, collimation cutting mirror 9 be usually convex lens (or Other collimation lenses combination), laser by collimation cutting mirror 9 after vertically downwards from be located at cutting head lower end 82 small opening, It is projected i.e. from light mouth 84 out.The side wall of cutting head 8 is equipped with stomata 83, penetrates through into the inner cavity of cutting head 8 80.It is described to cut Cutting torch 8 is setting up and down, and upper opening is big, and under shed is small, and osculum is conducive to that cutting smog dust is avoided to enter in cutting head, and laser is certainly The upper and lower collimation cutting collimation injection of mirror 9 by cutting head；Light mouth 84 is the corresponding rectangular cutting area with the rectangular of fillet out Domain.Stomata is for connecting tracheae, and in operation, tracheae continues to input gas into cutting head inner cavity 80, and gas is from light mouth 84 out It sprays, it is convenient to enter in cutting head inner cavity 80 at light mouth 84 out in operation first is that preventing flue dust from entering, second is that dispelling lower section Flue dust, be conducive to fining cutting.

As shown in figure 27, vertical cut cuts index path inside the cutting head of laser subject to.Shoot laser 400, by the first dimension After the modulation of positioning mirror and the second dimension positioning mirror, the cutting laser 401 of different displacements is generated, cutting laser 401 is by collimation After cutting mirror, the downward cutting laser of the collimation of different displacements, such as the first collimation cutting laser 401', the second collimation cutting are formed Laser 401 " and third collimation cutting laser 401 " ', and from light mouth 84 out project to lower section cutter unit region 1100 It is interior, to carry out cutting operation to plate 110.

The ultrahigh speed laser cutting head of the present embodiment is installed on existing cutting machine moving track, passes through parallel track Mobile mode for mobile cutting head on a large scale, and mirror is transposed by the first dimension and the second dimension transpose mirror reflection come Quick positional dissection point in small-scale cutting region cuts cutting laser straight down finally by collimation cutting mirror.It is logical Cross the in-plane displancement of four dimensions distribution laser.The control of first dimension positioning mirror and the second dimension positioning mirror to cutting laser displacement Speed processed is significantly faster than overall movement of the track to cutting head, so be used to change cutting laser at a high speed in small range plane Realize ultrahigh speed cutting in orientation.By the combination of a wide range of+a small range, cutting speed can reach existing cutting equipment 10~ 40 times or more of cutting speed is promoted.

Embodiment two

A kind of high-rate laser diced system equipment being equipped with embodiment ultrahigh speed laser cutting head, the cutting of the present embodiment 10~50 times faster than the cutting efficiency of existing cutting equipment of equipment, especially for more complicated cutting route, it is more difficult to the plate cut Material, cutting efficiency promotion are more obvious.

For the present embodiment is described in detail, combine relevant drawings to aid in illustrating during narration below.

As shown in Figures 2 to 4, the essential core component of this equipment is arranged on a pedestal 1, and the pedestal 1 of the present embodiment is One assists firm installing component, is as shown in the figure a thickness platform, and in other embodiments, unlimited concrete shape is conventional Seen plant bottom case, such as desk type pedestal, shelf type pedestal etc..

As also shown in fig. 7, pedestal 1 is a metal foil, a waste port 11 is equipped in pedestal, for collecting flue dust, clast Equal waste materials.

Again as shown in Figure 8 and Figure 9, go out Cutting platform 12 is arranged in waste port 11, for placing object to be cut, such as plate 110.Cutting platform 12 is mainly made of several grizzly bars 13, and in diagram, all grizzly bars 13 are linearly, is parallel to each other and is spaced one Set a distance rearranges Cutting platform 12.In other embodiments, the grizzly bar can be waveform shape, arc shaped, ring-shaped etc., Mutually composition has centainly the Cutting platform 12 in gap up and down between grizzly bar.

The grizzly bar is preferably made of metal, such as steel disc, aluminium flake or alloy sheet etc., be piece assembling structure, grizzly bar 13 it is upper End margin has tapering grid cutting edge of a knife or a sword 131, and the upper end-face edge of grizzly bar 13, from bottom to top, thickness gradually becomes smaller, and is formed described tapering Grid cutting edge of a knife or a sword 131.Grid cutting edge of a knife or a sword described in Fig. 9 131 are to shrink thickness upwards simultaneously from the two sides of grizzly bar 13, in other embodiments, It can also be from the one side of grizzly bar and gradually shrink thickness upwards.

When cutting plate, the laser of cutting can indefinitely penetrate empty (being shot through) plate, be mapped to below plate, ideal feelings Condition is that the cutting laser of high energy is preferably incident upon waste port directly through the gap of grizzly bar in the following, not having security risk；It is undesirable The case where be that laser can be incident upon on grizzly bar, grizzly bar itself is because thin thin, therefore using the metal material of resistance to laser burns, when When laser is incident upon on grizzly bar, grizzly bar meeting reflective portion laser can be used to cut metal plate because of the super height of energy of cutting laser The laser energy of material, necessarily super height, as long as a little cutting laser is reflected onto the person, because the reaction of people itself is fast Degree, will not generate too grievous injury to human body general place, be only the blind property of direct cause to the injury of eyes, therefore cut The safety problem utmost importance of laser.Would generally control cutting laser be nearly all cut vertically downward, so cutting laser be Make occasionally have reflection, also can substantially control reflection direction, such as beat the cutting laser on grizzly bar straight down, usually can only be mapped to On the sharp point and sharp side of grid cutting edge of a knife or a sword, because sharp point is very thin, the amount of laser light of reflection has been reduced to rather low degree, most cutting Laser can be reflected by sharp side, because of the angle very little on sharp side and vertical direction, i.e., with cutting laser incident direction angle very little, Cutting laser can be reflected downwards substantially, be incident upon below waste port.

In Fig. 8, in order to facilitate the installation of, with the fixed grizzly bar of platform outline border 121, other fix the usual solid of grizzly bar to the grizzly bar Determine mode also can, directly grizzly bar can also be fixed at waste port.

Again as shown in Figures 2 to 4, the present embodiment laser cutting technique, laser used is high power laser, such as CO₂Laser, solid state laser, optical fiber laser etc., power are up to more than several hectowatts, if being used for cutting steel plate, For power then up to kilowatt to more than myriawatt, the characteristics of cutting laser is exactly that power is big, volume is big, weight is big.The present embodiment Laser 40 be fixed on pedestal 1 by laser bench 401, laser goes out at light, is equipped with one and goes out shaven head 4；Preferably, Exist between shaven head and laser out and propagate optical path, the direction of propagation of laser is made to change, length space is saved.Of the invention Laser 40 because belonging to large-scale high power laser, therefore must need to be fixed on the base, and cannot participate in some dynamics Movement.Laser its power, the weight and volume that cutting laser usually can be issued are bigger than other lasers, common big Power laser diode belongs to the prior art.

As shown in Figure 11 to Figure 13, the main function of shaven head 4 is to add a coaxial instruction laser to cutting laser out, Including be fixedly connected sequentially flanged plate 43, the first chunking 44, the second chunking 45, flanged plate 43 will be for that will go out shaven head 4 and laser Device 40 is fixedly connected, and flanged plate 43 is equipped with the flange hole 431 before and after run-through board, is injected out in shaven head 4 for cutting laser. First chunking 44 and the second chunking 45 have a pair of corresponding combination inclined-plane, and the normal orientation with flange hole 431 is at 45 degree of angles.The The light well 441 of one chunking penetrates through the first chunking before and after the normal orientation of flange hole 431, and is aligned with flange hole 431；The The light hole 451 of two chunkings penetrates through the second chunking, and the light well with the first chunking before and after the normal orientation of flange hole 431 441 alignment.The light hole 451 of flange hole 431, the light well 441 of the first chunking and the second chunking is successively aligned along normal orientation, It is used to form the light hole road of cutting laser.

In the upper surface of the second chunking 45, the adjusting spiral shell of mounting hole 452 and indication laser equipped with indication laser Hole 453, the mounting hole 452 of indication laser are connected to downwards the light hole 451 of second piece of group, the light well 441 of the first chunking And second chunking light hole 451 between be equipped with single-surface mirror installing port 455, single-surface mirror installing port 455 is located at indication laser Below the face of mounting hole 452, single-surface mirror 42 is provided at single-surface mirror installing port 455, the mirror surface of single-surface mirror 42 is oblique along combination The normal orientation of face and flange hole 431 is at 45 degree of angles；Single-surface mirror has two sides attribute, and front is reflecting surface, and the back side is Penetrate face；Cutting laser is incident upon the back side of single-surface mirror 42 from the direction of flange hole 431, then projects from the front of single-surface mirror to second The light hole 451 of chunking, so that not influencing cutting laser passes through its light hole road.Indication laser 41, passes through indication laser Adjustment seat 411 be mounted at the mounting hole 452 of indication laser, the instruction laser directive for issuing indication laser 41 downwards The front of single-surface mirror 42, then by 42 head-on reflection of single-surface mirror to outside the light hole 451 of the second chunking.Indication laser It adjusts spring 412 to be installed at the adjusting screw hole 453 of indication laser, three adjust the normal direction that a plane is adjusted in spring 412, lead to This three adjusting springs 412 are overregulated, for calibrating the shoot laser of indication laser 41 until with cutting laser coaxial outgoing.

Along the direction of cutting laser and instruction laser emitting, the structure of first change optical path is fixed optical path reflecting mirror 5, It is installed on fixed optical path adjustable plate 51, fixed optical path adjustable plate 51 is fixed on pedestal 1 by fixed optical path pedestal 52.Such as figure Shown in 10, the lower end of fixed optical path adjustable plate 51 is equipped with fixing threaded hole 512, for being fixedly connected with fixed optical path pedestal 52, Gu Determine to be additionally provided on optical path adjusting plate 51 and adjust screw hole 511, the back side of fixed optical path reflecting mirror 5 is by adjusting screw and adjusting screw hole 511 installation connections.The main function of fixed optical path reflecting mirror 5 saves the length space of equipment first is that folding optical path；Second is that adjusting Laser direction is saved, laser direction is made to be parallel to the direction of motion of the first dimension track.Theoretically, if not disliking space waste, Laser ensure that laser direction when projecting, it is convenient to omit the fixed optical path reflecting mirror 5；But actually since project installation error Cause to be difficult substantially to ensure that laser direction when laser is cut in installation, therefore preferably needs fixed optical path reflecting mirror in practice 5 cut the direction of laser to adjust and calibrate, and are allowed to that the direction of motion of the first dimension track must be parallel to and are incident to activity On optical path reflecting mirror 6.

It is set in the two sides of Cutting platform 12 and is provided with the second dimension on the first dimension track there are two the first dimension track Spend track.In the present invention, using first straight line motor track 31, second straight line motor track 32 and third linear motor track 33, in other embodiments, screw rod, sliding rail etc. can also be used.Two the first dimension tracks are parallel to each other, for driving the second dimension Degree track moves on the first dimension track.In the present embodiment, the direction of motion of the first dimension track and the second dimension track The direction of motion be mutually orthogonal, in other embodiments, can be non-orthogonal, two dimension shapes form an angle, and are also able to achieve Locating effect in planar range.

As shown in Figures 2 to 6, the track structure of the present embodiment uses linear motor track structure.

First straight line motor track 31 is set as the first dimension track, and structure includes concave truss 312, magnetic sheet 313, moves Son 315, mover stroke inductor 316 etc., wherein concave truss 312 is fixed on pedestal 1, is interlocked in concave groove inner wall two sides It is provided with the pole N and the pole S magnetic sheet 313, magnetic sheet 313 extends along two sides inner wall, and mover is arranged between the inner wall of two sides, concave groove Both ends are equipped with mover stroke inductor 316, for incuding both ends stroke limit of the control mover in concave groove, concave groove upper cover Equipped with organ cover 311, it is mainly used to prevent dust break flour from entering in linear motor.

Second straight line motor track 32 is all the first dimension track, and structure includes concave truss 322, magnetic sheet 323, is moved Son 325, mover stroke inductor etc., wherein concave truss 322 is fixed on pedestal 1, the concave truss 322 and first straight line The concave truss 312 of motor track is arranged in parallel, is staggeredly equipped with the pole N and the pole S magnetic sheet 323 in concave groove inner wall two sides, Magnetic sheet 323 extends along two sides inner wall, and mover is arranged between the inner wall of two sides, and the both ends of concave groove incude equipped with mover stroke Device is covered with organ cover 321 on concave groove, is mainly used to for incuding both ends stroke limit of the control mover in concave groove Prevent dust break flour from entering in linear motor.

Again as shown in Figure 14 and Figure 15, third linear motor track 33 is set as the second dimension track, and structure includes concave Truss 332, magnetic sheet 333, mover 335, mover stroke inductor 336 etc., wherein be staggeredly equipped with N in concave groove inner wall two sides Pole and the pole S magnetic sheet 333, magnetic sheet 333 extend along two sides inner wall, and mover 335 is arranged between the inner wall of two sides, the both ends of concave groove It is covered on concave groove equipped with mover stroke inductor 336 for incuding both ends stroke limit of the control mover in concave groove Organ cover 331 is mainly used to prevent dust break flour from entering in linear motor.One end of concave truss 332 passes through the first mounting plate 3331 are fixed on the mover 315 of first straight line motor track, and the other end of concave truss 332 is solid by the second mounting plate 3332 It is scheduled on the mover 325 of second straight line motor track, the slot of concave truss 332 is to perpendicular to concave truss 322 and concave truss 312, so that whole mover 315 and the second straight line electricity by first straight line motor track of entire third linear motor track 33 The mover 325 of machine track drives walking；And the direction of motion of the mover 335 of third linear motor track and other 2 movers Direction is mutually orthogonal vertical.

As shown in Fig. 6 and Figure 15, Figure 16, fixed optical path reflecting mirror 5, set on one end of first straight line motor track 31, with First straight line motor track 31 is relatively fixed, for adjusting the mover direction of motion of laser optical path Yu first straight line motor track 31 In parallel, and it is incident to laser accurately on the activity optical path reflecting mirror 6 to link with the mover 315 of first straight line motor track.

Activity optical path reflecting mirror 6 is mounted on movable optical path adjusting plate 61, and movable optical path adjusting plate 61 is further through movable light Road pedestal 62 is fixed on the first mounting plate 3331, realizes the overall linkage with third linear motor track 33.The activity optical path The back side 611 of adjustable plate is equipped with center adjustment screw hole 612 and side adjusts screw hole 613, and center adjustment screw hole 612 and side adjust spiral shell Hole 613 penetrates through to movable optical path adjusting plate 61, and connect with the back side of activity optical path reflecting mirror 6, for adjusting and school The reflection direction of quasi- activity optical path reflecting mirror 6 makes the reflection light direction of activity optical path reflecting mirror 6 and third linear motor track The direction of motion of mover 335 is parallel to each other.

The activity optical path pedestal 62 is irregular polygon shape comprising first side 621,622 and of second side Third side 623, substantially 135 degree of the angle between first side 621 and second side 622, third side 623 and the first side Side 621 is to be mutually perpendicular to, and the edge on activity optical path pedestal 62 close to second side 622 is provided with fixing threaded hole 624, is used In fixed installation activity optical path adjusting plate 61.

It further include the fixing threaded hole on the first L-type fixed frame 63 and the second L-type fixed frame 661 and the second L-type fixed frame 6611, the first L-type fixed frame 63 is for the fixed pass between further reinforcing activity optical path pedestal 62 and the first mounting plate 3331 System, the second L-type fixed frame 661 is for the fixation between further reinforcing activity optical path adjusting plate 61 and solid activity optical path pedestal 62 Relationship.In the present embodiment, fixed optical path reflecting mirror 5 and activity optical path reflecting mirror 6 are arranged in first straight line motor track side, In other embodiments, it is arranged also possible in second straight line motor track side.

Again as shown in Figure 14 and Figure 15, cutting head frame 733 is installed on the mover 335 of third linear motor track, Cutting head frame 733 is moved with mover 335 along 332 direction of concave truss of third linear motor track, i.e., along the Two-dimensions direction is mobile, realizes the linkage effect of cutting head frame 733 and mover 335.In the side of cutting head frame 733 The cutting head 7 is installed, cutting head 7 links with cutting head frame 733 and mover 335.Cutting head 7 is equipped with towards living The receipts unthreaded hole 70 of dynamic optical path reflecting mirror 6, for received from the laser reflected back at activity optical path reflecting mirror 6.On cutting head 7 also Cutting head 8 equipped with Cutting platform downward cuts laser or instruction laser after the injection of cutting head 8, projects straight down To Cutting platform.

Stroke measurment sensor 371,371 direction of stroke measurment sensor are equipped in the other side of cutting head frame 733 The lateral surface of concave truss 332, the lateral surface of concave truss 332 are equipped with the stroke measurment of correspondence course measurement sensor 371 Sensor bar 381 cuts head frame 733 and 7 He of cutting head thereon when mover 335 is moved back and forth along the second dimension Stroke measurment sensor 371 follows movement, and stroke measurment sensor 371 does trailing type along stroke measurment sensor bar 381 It moves back and forth, and measures the real-time relative position letter in the second dimension of cutting head frame 733 and cutting head 7 thereon Breath, and it is transferred to controller.

On the cutting head frame 733 ipsilateral with stroke measurment sensor 371, preposition vane 372 is additionally provided with after Vane 373 is set, is located at stroke measurment sensor 371 along the front and rear sides in the second dimension direction.It is passed with stroke measurment On the lateral surface for feeling the ipsilateral concave truss 332 of item 381, in the stroke measurment sensor bar far from 6 one end of activity optical path reflecting mirror 381 end is externally provided with front sensors 382, is equipped with postposition sensor 383 in opposite end.When cutting head frame 733 to Before be moved to the position or postposition vane 373 and postposition sensor 383 that preposition vane 372 incudes with front sensors 382 When the position of induction, the movements such as stroke measurment sensor 371 calibrates station-keeping data, resets.

As shown in Figure 17 and Figure 18, the partial shell of cutting head 7 is hidden, it can be seen that cutting head backboard 701 and cutting head Bottom plate 702, is equipped with several control circuit boards on cutting head backboard 701, and circuit board is equipped with conventional control driving circuit.Edge Laser receive the incident sequence of unthreaded hole 70 from cutting head, aperture plate 71, movable focusing lens 727, solid is successively arranged in cutting head It sets the tone burnt frame 73 and the first dimension positioning mirror 752, the second dimension positioning mirror 762, positioning laser exit window 7020 and cutting head 8。

The first dimension track and the second dimension track of the present embodiment, for mobile on a large scale by way of moving in parallel Cutting region, and by the reflection of the first dimension positioning mirror and the second dimension positioning mirror come quick in small-scale cutting region Positional dissection point cuts cutting laser straight down finally by collimation cutting mirror.Pass through the knot of a wide range of+a small range It closes, the cutting speed that cutting speed can reach 10~40 times of existing cutting equipment or more is promoted.

The high-speed cutting laser system of the present embodiment distributes the in-plane displancement of laser, the first dimension rail by four dimensions Road and the second dimension track are responsible for big distance displacement, and cutting head is fast moved to distant location, and the first dimension positioning mirror and Second dimension transposes mirror for changing the orientation realization ultrahigh speed cutting of cutting laser at a high speed in small range plane.

Embodiment three

The present embodiment cuts lens in the collimation on the basis of example 2, removing cutting head and Qi Nei.The present embodiment Scheme cannot be used for cutting there is certain thickness plate, but can be used for cutting very thin other materials, such as paper jam, skin Leather etc..

Example IV

The present embodiment is a kind of application method of ultrahigh speed laser cutting head, comprising:

(3) cutting head is set on the second dimension track, and cutting head can be along the second dimension orbital direction linear reciprocating motion； First dimension positioning mirror and the second dimension positioning mirror are installed, using motor to the first dimension positioning mirror and the second dimension on cutting head Mirror of transposing carries out reciprocating rotation control, and the pivot center of the first dimension positioning mirror and the pivot center of the second dimension positioning mirror are mutual It is arranged in a crossed manner；It is received using the first dimension positioning mirror and is parallel to the cutting laser of the second dimension track and reflexes to the second dimension tune Position mirror；

It further comprises the steps of:

Cutting platform is divided into several cutting areas and the first dimension positioning mirror and the second dimension positioning mirror synergic reflex The corresponding cutter unit region of range；

Embodiment five

The present embodiment is the application method of another ultrahigh speed laser cutting head, comprising:

It further comprises the steps of:

(6) collimation is cut mirror to be set to below the second dimension positioning mirror, cuts mirror for the cutting of oblique injection using collimation Laser is reflected to normal orientation, and the angle for cutting laser and normal orientation is made to become smaller or be parallel to normal orientation.

It further comprises the steps of:

Embodiment six

It further comprises the steps of:

Using the first dimension positioning mirror and the second dimension positioning mirror control cutting laser, the cutting of mirror covering is cut in collimation It is persistently cut in range, while controlling the first dimension track and the mobile cutting head of the second dimension track, by collimation cutting mirror covering Central point it is close toward cut point direction in real time.

Embodiment seven

It further comprises the steps of:

And when the central point of collimation cutting mirror covering and cut point are close close to stopping after certain distance, work as cut point Secondary control is close again after central point certain distance again far from collimation cutting mirror covering.

According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to the one of invention A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.

Claims

1. a kind of ultrahigh speed laser cutting head is applied on laser cutting device characterized by comprising shell, the one of shell Side is equipped with the receipts unthreaded hole of laser, injects in shell for receiving cutting laser；

Along the path of cutting laser, aperture plate, activity focusing lens set, 2 dimension positioning mirrors and standard are successively arranged in shell Vertical cut cuts mirror；

The aperture plate is equipped with the aperture along light path therethrough, is equipped with a circle around aperture periphery and receives light slot, receives light slot position In, towards the side for receiving unthreaded hole, the slot bottom for receiving light slot is lower than aperture plate surface in aperture plate；

The activity focusing lens set includes at least a convex lens and a concavees lens, and convex lens and/or concavees lens are reciprocal along optical path The mobile cutting focal length to adjust cutting laser；

2 dimensions positioning mirror is followed successively by the first dimension positioning mirror and the second dimension positioning mirror, and the first dimension is transposed mirror and the Two-dimensions transpose mirror by motor driven reciprocating rotation, and the rotation axis of 2 dimension positioning mirrors intersects；

The collimation cuts mirror, is located at below the second dimension positioning mirror, for by the cutting laser of oblique injection to normal orientation Refraction is projected after so that the angle for cutting laser and normal orientation is become smaller.

2. ultrahigh speed laser cutting head according to claim 1, which is characterized in that the activity focusing lens set includes living Dynamic focusing lens and fixed focusing lens, movable focusing lens use the concavees lens, and fixed focusing lens use the convex lens；It is fixed to adjust Burnt mirror is fixed in the optical path of cutting laser, and movable focusing lens are along the direction linear reciprocating motion of cutting optical path.

3. ultrahigh speed laser cutting head according to claim 2, which is characterized in that further include the focusing eyeglass of half moon Frame, movable focusing lens are fixed on the focusing lens hanger of half moon, and focusing lens hanger is fixed on focusing sliding block, focusing Sliding block is movably arranged on focusing sliding rail, and focusing sliding rail is mutually matched with focusing sliding block and connect, focusing sliding rail edge and cutting laser The parallel direction arrangement of optical path, focusing sliding block can be driven in fast reciprocating on sliding rail and slide, and drive focusing lens hanger and activity Focusing lens, which follow, to reciprocatingly slide；

Further include dynamic focusing motor, is vertically mounted in cutting head, it is fixed in the rotation axis of dynamic focusing motor to connect It is connected to the first swing connecting bar, first swing connecting bar one end is fixedly connected with the rotation axis of dynamic focusing motor, the other end and second One end axis of swing connecting bar connects, and the other end of the second swing connecting bar then connects with focusing one side axle of sliding block；First swing connecting bar and the The direction of the connecting shaft of two swing connecting bars is parallel with the dynamic focusing rotating shaft direction of motor, the second swing connecting bar and focusing sliding block Connecting shaft direction with dynamic focusing the rotating shaft direction of motor it is parallel.

4. ultrahigh speed laser cutting head according to claim 1, which is characterized in that the first dimension positioning mirror is connected to On the output shaft of first dimension positioning motor, the positioning of fourth dimension degree is connected on the output shaft of the second dimension positioning motor；First The output shaft of dimension positioning motor and the output shaft of the second dimension positioning motor form certain space angle, the positioning of the first dimension Motor and the second dimension positioning motor are fixed by positioning motor fixing seat installation.

5. ultrahigh speed laser cutting head according to claim 1, which is characterized in that the aperture by limit aperture inside Bread encloses, and the medial surface for limiting aperture is also formed as aperture inner wall；It limits aperture and is higher than the bottom surface for receiving light slot, receive light slot and hole The receipts light slot inner wall of diameter plate front transition limits aperture outer wall and is formed as receiving light slot and limits mistake between aperture perpendicular to aperture plate surface The wall surface crossed, the wall surface is perpendicular to aperture plate surface.

6. ultrahigh speed laser cutting head according to claim 1, which is characterized in that the bottom plate for cutting casing, which is equipped with, to be adjusted Position laser exit window, positioning laser exit window is located at below the second dimension positioning mirror, by cutting for the second dimension positioning mirror reflection Laser is cut to shoot down from positioning laser exit window；

It further include cutting head up and down, the upper end opening of cutting head is installed below positioning laser exit window, cutting head Lower ending opening is smaller than upper end；

7. ultrahigh speed laser cutting head according to claim 6, which is characterized in that the side of the cutting head is equipped with gas Hole, for connecting tracheae, in cutting operation, gas enters cutting head inner cavity from stomata and sprays from cutting head lower ending opening.

8. a kind of application method of ultrahigh speed laser cutting head according to claim 1 characterized by comprising

(1) the cutting laser that laser issues is adjusted to parallel with the first dimension orbital direction using fixed optical path reflecting mirror and is penetrated Out；

(2) the second dimension track arranged in a crossed manner on the first dimension track, the second dimension track can be along the first dimension orbital directions Linear reciprocating motion；Meanwhile it living in the junction setting of the second dimension track and the cutting laser for being parallel to the first dimension track Dynamic optical path reflecting mirror, and changing cutting laser direction using activity optical path reflecting mirror is to be parallel to the second dimension orbital direction；

(3) cutting head is installed on the second dimension track, cutting head can be along the second dimension orbital direction linear reciprocating motion； First dimension positioning mirror and the second dimension positioning mirror are installed, using motor to the first dimension positioning mirror and the second dimension on cutting head Mirror of transposing carries out reciprocating rotation control, and the pivot center of the first dimension positioning mirror and the pivot center of the second dimension positioning mirror are mutual It is arranged in a crossed manner；It is received using the first dimension positioning mirror and is parallel to the cutting laser of the second dimension track and reflexes to the second dimension tune Position mirror；

(5) the setting activity focusing lens set on the optical circuit path of cutting laser, and it is real-time using stroke sensor and controller The light path that cutting laser is incident upon different location on Cutting platform is calculated, lens set is to real-time adjustment cutting so that control activity is focused The cutting focus of laser.

(6) collimation is cut mirror to be set to below the second dimension positioning mirror, cuts mirror for the cutting laser of oblique injection using collimation It is reflected to normal orientation, so that the angle for cutting laser and normal orientation is become smaller or be parallel to normal orientation, then directive is cut again Cut platform.

9. application method according to claim 8, which is characterized in that transposed using the first dimension positioning mirror and the second dimension Mirror control cutting laser, persistently cuts, while controlling the first dimension track and the in the cut coverage of collimation cutting mirror covering Two-dimensions track moves cutting head, and the central point of collimation cutting mirror covering is close toward cut point direction in real time.

10. the high-rate laser cutting method according to claim 8 based on multidimensional distribution control, which is characterized in that work as standard Vertical cut cut mirror covering central point and cut point it is close close to stopping after certain distance, when cut point is again far from collimation cutting Secondary control is close again after the central point certain distance of mirror covering.