CN2860712Y - High-power solid laser plane cutter - Google Patents
High-power solid laser plane cutter Download PDFInfo
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- CN2860712Y CN2860712Y CN 200520114855 CN200520114855U CN2860712Y CN 2860712 Y CN2860712 Y CN 2860712Y CN 200520114855 CN200520114855 CN 200520114855 CN 200520114855 U CN200520114855 U CN 200520114855U CN 2860712 Y CN2860712 Y CN 2860712Y
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Abstract
The utility model relates to a laser plane cutting system, which belongs to laser technical and machine processing field. The utility model includes digital control system (1), control cabinet (2), water cold cabinet (3) and working platform (4). The utility model is characterized in that, a flexible-with system is located on the cutting machine, the flexible-with machine is consisted of laser cutting head, sensor (16), voltage compared card (17), former magnifying device (18), service control card (19) and service motor(20). The sensor transports the electric signal to voltage compared card, which can response the voltage size between the sensor and the cut plate on the lower part of laser cutting head, the sensor is used to compared the electric current of digital control system to the sensor transportation(16), then there can be a voltage difference which is transported to the former magnifying device (18), and the former magnifying device transports the voltage difference to the service control card, so the service motor will push the laser cutting head to work. The utility model can do a better job on cutting quality when under the same power situation.
Description
Technical field
The utility model relates to a kind of laser plane diced system, belongs to laser technology and field of machining.
Background technology
In recent years, the laser industry development was very fast, and all with the speed increment in every year 15%～20%, China also increased with annual speed more than 25% since 1985 in advanced countries such as Europe, the U.S. and Japan.Laser in the application of material processing field more and more widely.And laser cutting is to use maximum laser processings, can account for more than 70% of whole Laser Processing industry.From now on, along with the continuous development of laser processing technology, laser cutting will become indispensable important process technology means of 21 century.
The application of laser cutting technique is quite extensive, all can use laser cutting technique at Aero-Space, boats and ships, military project, automobile making, household electrical appliances, electric switch, farm machinery, textile machine, engineering machinery, light industry and machinery, grain machinery, medicine equipment, metallurgical equipment, oil, decorations and other each machine industry.Metal and nonmetallic materials such as laser can carbon steel, steel alloy, stainless steel, aluminium, titanium, lucite, pottery, rubber, plastics, quartz glass.
Numerical control laser cutter has a lot of advantages for general cutting machine: one, the focused spot of laser beam is little, makes the joint-cutting that is cut material narrow, and cutting machine combines with computer control system simultaneously, and the precision of laser cutting is higher.Two, the heat affected area is little, thereby thermal deformation is little, and cutting speed is fast, the cutting efficiency height, and two days workload of laser cutting machine is equivalent to the workload in general one week of cutting machine.Three, joint-cutting edge-perpendicular degree is good, and it is smooth to cut edge, and side cut place does not have mechanical stress, and nothing is cut the limit and cut burr.Four, no tool wear must not changed cutter yet, need only the adjusting process parameter.Cost is low, does not need the mould investment in later stage.Five, in cutting process, there is not noise pollution.Six, can cut other method for hot cutting nonmetallic materials, synthetic material, the fabric that can not cut.So being arranged now, a lot of medium-sized and small enterprises all select laser cutting machine.
Laser cutting machine commonly used has four kinds, sports type small-power CO2 laser cutting machine, the Solid State Laser cutting machine of Optical Fiber Transmission, the high-power CO2 laser cutting machine of light path flight formula, light path flight formula Solid State Laser cutting machine.Wherein:
Light path flight formula Solid State Laser cutting machine, workpiece keeps motionless in cutting process, realize laser cutting by mobile laser instrument, the characteristics of this structure are that the inertia of moving component is little, can obtain higher translational speed, and tracking accuracy is good, speed is fast, when the part of machining large-sized, big thickness (weight), have precision height, clear superiority that productivity ratio is high.Simultaneously compare this lathe floor space minimum with other lathe of the equal range of work.The high power of laser instrument has determined that the maximum ga(u)ge of cutting is bigger in addition, but because light beam flight causes laser cutting head and the distance that is cut between the thin plate can be along with a little variation takes place, the thin plate injustice also can cause the distance between them to change simultaneously, so machining accuracy can descend.
The utility model content
The purpose of this utility model is in order to overcome the defective that existing light path flight formula Solid State Laser cutting machine exists, to realize the two dimension cutting of uneven sheet metal.Thereby proposed a kind of utility model large power solid laser plane cutting machine, designed servomechanism, to guarantee the cut quality of uneven plate.
The utility model numerically-controlled precise laser cutting machine is made up of laser cutting machine outside optical system 7, Water-cooled cabinet 3, switch board 2 (in relay, the floating device of magnetic etc. are arranged), digital control system 1, workbench 4 (lathe, driving-chain 5,6), laser cutting head 8, servomechanism etc.
Wherein laser cutting machine outside optical system 7 comprises the double lamp pumped solid state laser 10 of Nd:YAG and laser optical shutter and indication light source reflector 15, indicates laser 9, speculum 12, and condenser lens 13, beam-expanding system 11, fine adjustment screw 14 is formed.Shown in figure one.Speculum 12 can carry out small position adjustment by additional screw 14, condenser lens 13 by device in cutting head.
In addition, servomechanism comprises digital control system 1, laser cutting head 8, sensor 16, voltage ratio blocks 17, preamplifier 18, servo controlling card 19, servomotor 20, be cut thin plate 21, wherein the function of sensor 16 is transmission of electric signals, reacts it and is cut voltage swing between the thin plate 21, voltage ratio is blocked 17 and is used for the reference current that comparison digital control system 1 provides and the size of sensor 16 electric current transmitted, produce a voltage difference, preamplifier 18 amplifies voltage ratio and blocks 17 voltages that produce, and gives servo controlling card 19 this voltage transmission again, the voltage swing that servo controlling card 19 bases receive is controlled the motion of servomotor 20, and servomotor 20 drives laser cutting heads 8 motions.
Operation principle of the present utility model is: complete machine adopts the flight light path design, be that laser cutting machine outside optical system 7 is erected at by driving-chain 5, on 6 shelfs that drive, when work, stationary table is cut thin plate and lies on the workbench, promptly being cut thin plate is maintained fixed constant, cutting head 8 is driven by micro-processor controlled two AC servo stepper motors and moves on X, Y-axis, makes various figures according to control program, and workpiece is cut.The process of whole system following (as shown in Figure 4): digital control system is controlled the switch of Laser Power Devices by A/D card and D/A card, promptly controls the Kai Heguan of laser.Control optical gate driving element, indication light source (visible light source) and gas driving element by the I/O card then, thereby control the folding of optical gate, the startup of indication light source and assist gas, come the servo drive unit of X, Y, Z direction at last by motion control card, thereby the control drive motors makes laser cutting head can carry out the two dimension cutting.The height that is equipped with is simultaneously regulated servomechanism can guarantee that in cutting process laser cutting head and the distance that is cut between the thin plate remain unchanged, thereby guarantees the quality of laser cutting.As shown in Figure 3, the operation principle of servomechanism is as follows:
In digital control system 1, specify a control electric current, control the motor on the workbench, 8 motions of driven by motor laser cutting head, make laser cutting head 8 and be cut certain distance is arranged between the thin plate 21, be connected sensor 16 on the laser cutting head 8 with thin plate 21 because be metal all, therefore between them capacitance field is arranged, thereby generation voltage, thereby the sensor 16 that is connected on the laser cutting head 8 produces a little electric current, be transferred to voltage ratio and block on 17, a reference current that provides with digital control system 1 compares.When laser cutting head 8 and be cut between the thin plate 21 distance for default apart from the time, sensor 16 electric current transmitted equate that with reference current then voltage difference is zero, motor does not produce action.When laser cutting head 8 and be cut between the thin plate 21 distance change (for example thin plate injustice), then capacitance field between the two changes, thereby the voltage that drives between the two changes, little electric current of same sensor 16 transmission also changes thereupon, then it and reference current will have a difference, and being reacted to voltage ratio is exactly to produce into a voltage difference on the card.This difference is transferred to servo controlling card 19 after amplifying by preamplifier 18, then servo controlling card 19 drives motor 20 actions, thereby adjust laser cutting head 8 and the distance that is cut thin plate 21, in motor 20 actions, sensor 16 transmits a little electric current again and relatively blocks 17 to piezoelectric voltage, go round and begin again, meet split requirement up to laser cutting head 8 and the distance that is cut between the thin plate 21, be 16 electric current transmitted of sensor when equating with the reference current of digital control system 1 appointment, motor is no longer action.Adjusting automatically at any time of servomechanism can guarantee the cut quality of uneven plate.
The stable performance of the utility model large power solid laser plane cutting machine, cut quality is good, technology advanced person, the automaticity height, simple to operation, compact conformation, volume is little, and cost is low.Under the condition of equal-wattage, kerf quality is good, and this is that it is even to make it otch because system has servomechanism and can detect and adjust distance between laser cutting head and the cutting plate at any time automatically.Therefore the cut quality of this cutting machine is better.
Description of drawings
Fig. 1 represents laser instrument and outside optical system;
Wherein, 9 are indication laser, and 10 is 500W Nd:YAG laser instrument, and 11 is beam-expanding system, and 12 is speculum, and 13 is condenser lens, and 14 is fine adjustment screw, and 15 is laser optical shutter and indication light source reflector; Fig. 2 represents the full figure of laser plane diced system;
Wherein, 1 is digital control system, and 2 is switch board, and 3 is Water-cooled cabinet, and 4 is workbench, and 5 is vertical driving-chain, and 6 is horizontal driving-chain, and 7 is the laser cutting machine outside optical system, and 8 is laser cutting head;
Fig. 3 represents each parts of servomechanism in the laser plane cutting machine and their annexation;
Wherein, 16 is sensor, and 17 is card of voltage ratio, and 18 is preamplifier, and 19 is servo controlling card, and 20 is servomotor, and 21 for being cut thin plate;
Fig. 4 represents the control flow chart of whole laser plane cutting.
The specific embodiment
The applicant has developed a L-500-2D type numerically-controlled precise laser plane cutting machine, the laser instrument that this cutting machine adopts is the 500WNd:YAG laser instrument, optical maser wavelength 1064nm, and peak power (continuously) is 500W, laser beam quality is that depth of focus is longer about 20mmmrad.The range of work of this cutting machine is 1200 * 2500mm
2, the maximum locating speed 10m/min of XY axle, maximum cutting rate 6m/min, XY axle repetitive positioning accuracy is ± 0.05mm.Assist cutting assist gas etc. is arranged.Workbench adopts the thimble-type workbench, AC servo machinery driving, and lathe has dynamic stability, does not also have obviously vibrations under the situation of high-speed motion.Laser cutting head is equipped with servomechanism, and sensor in the servomechanism adopts voltage sensor, keep laser cutting head and surface of the work apart from substantially constant, thereby assurance uneven plate cut quality.Cutting machine is furnished with industrial control computer and the automatic composing software of full Chinese interface, cutting software, aided drawing software, can cut out the workpiece of arbitrary graphic according to client's demand.The carbon steel sheet that stainless steel that this cutting function punching and cutting 3.0mm (comprising) are following and 6.0mm (comprising) are following etc.In cutting process, it is static that workpiece keeps, and need not anchor clamps.
Crudy when guaranteeing cutting processing different shape sheet material, can also adopt have the multiaxis linear interpolation, the motion control card of functions such as circular interpolation, profile control, electronic gear.This control card adopts the up-to-date DSP technology of 32bit, has merged up-to-date control theory, can realize eliminating the motion smoothing processing of impact, straight line/circular interpolation contains oval convergent-divergent, corner deceleration transition, unlimited line segment feeding, feed rate control, the two-axle interlocking axle can be carried out (multitask) simultaneously, each initial point returns, positive and negative to limit function, each high speed position is caught with the position and is compared.
Claims (3)
1, large power solid laser plane cutting machine, comprise the digital control system (1) that connects successively, include the switch board (2) of the floating device of relay and magnetic, Water-cooled cabinet (3), workbench (4), be arranged on the laser cutting machine outside optical system (7) on the workbench (4), the laser cutting head (8) that links to each other with outside optical system (7), wherein workbench (4) is by lathe and vertical driving-chain (5), laterally driving-chain (6) is formed, it is characterized in that: servomechanism is set on cutting machine, described servomechanism is by laser cutting head (8), be arranged on the sensor (16) on the laser cutting head (8), and voltage ratio is blocked (17), preamplifier (18), servo controlling card (19), servomotor (20) is formed; Wherein, sensor (16) is transferred to card (17) of voltage ratio with the signal of telecommunication, react the voltage swing between the thin plate (21) of being cut of itself and laser cutting head (8) below, voltage ratio card (17) is used for the reference current that comparison digital control system (1) provides and the size of sensor (16) electric current transmitted, produce a voltage difference and be input to preamplifier (18), preamplifier (18) amplifies the voltage of card (17) generation of voltage ratio, give servo controlling card (19) this voltage transmission, the voltage swing that servo controlling card (19) basis receives is controlled the motion of servomotor (20), and servomotor (20) drives laser cutting head (8) motion.
2, large power solid laser plane cutting machine according to claim 1 is characterized in that: described laser cutting machine outside optical system (7) comprises the double lamp pumped solid state laser of Nd:YAG (10), reaches laser optical shutter indication light source reflector (15), indication laser (9), beam-expanding system (11), speculum (12), the condenser lens (13) of device in laser cutting head (8); Wherein, indication light source reflector (15) is provided with the laser optical shutter that is used for blocking work laser that connects together with it, speculum (15) allows the indication laser (9) of the particular location that is used for locating cutting enter beam-expanding system (11), beam-expanding system (11) expands bundle to laser, change the depth of focus and the waist radius of laser, the speculum (12) that the direction that is used for changing laser makes it to be become by parallel radiation vertical irradiation is arranged on beam-expanding system (11) afterwards, by condenser lens (13) laser is focused on then, to obtain suitable focus point and waist radius, be used for the fine adjustment screw (14) of small adjustment speculum (12) to be attached on the condenser lens (13).
3, large power solid laser plane cutting machine according to claim 1, it is characterized in that: the output of described digital control system (1) connects card (17) of D/A card, I/O card, servo controlling card, voltage ratio respectively, input links to each other with the A/D card, and digital control system (1) links to each other with laser power controller by D/A card, A/D card and is used for controlling the switch of Laser Power Devices; Digital control system (1) is controlled optical gate driving element, the gentle body driving element of indication light source by the I/O card, thereby control the startup of folding, indication light source and the assist gas of optical gate, control servo drive unit by the servo controlling card in the servomechanism at last, thereby the control drive motors makes laser cutting head can carry out the two dimension cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114855 CN2860712Y (en) | 2005-07-27 | 2005-07-27 | High-power solid laser plane cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114855 CN2860712Y (en) | 2005-07-27 | 2005-07-27 | High-power solid laser plane cutter |
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| CN2860712Y true CN2860712Y (en) | 2007-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520114855 Expired - Fee Related CN2860712Y (en) | 2005-07-27 | 2005-07-27 | High-power solid laser plane cutter |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101218A (en) * | 2009-12-22 | 2011-06-22 | 深圳市大族激光科技股份有限公司 | Insulating ring, manufacturing method and laser cutter using insulating ring |
| CN102156436A (en) * | 2011-05-18 | 2011-08-17 | 山西飞虹激光科技有限公司 | Multi-closed-loop feedback control system for laser cutter |
| CN102310275A (en) * | 2011-06-27 | 2012-01-11 | 胡忠 | Numerical-control laser fracture-control cutting machine |
| CN101995830B (en) * | 2009-08-14 | 2012-08-15 | 中国舰船研究设计中心 | Ship high-precision control method |
| CN103203555A (en) * | 2012-01-11 | 2013-07-17 | 昆山允升吉光电科技有限公司 | Mask plate assembling test machine |
| CN104985330A (en) * | 2015-06-12 | 2015-10-21 | 嘉兴威斯柏自动化科技有限公司 | Small-power laser hybrid cutter and using method thereof |
| CN105081562A (en) * | 2015-08-27 | 2015-11-25 | 武汉奥森迪科智能电控科技有限公司 | Totally-digital laser focusing automatic tracking system |
| CN105817771A (en) * | 2016-05-01 | 2016-08-03 | 佛山市嘉峻制衣有限公司 | Laser cutting machine for reflective band |
| CN106392307A (en) * | 2016-11-08 | 2017-02-15 | 中国人民解放军空军第航空学院 | Laser cutting follow-up control and automatic objective focusing system |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
| CN107243700A (en) * | 2017-08-08 | 2017-10-13 | 江苏大金激光科技有限公司 | A kind of amplitude solid laser cutting machine |
| CN107363418A (en) * | 2017-08-08 | 2017-11-21 | 江苏大金激光科技有限公司 | Laser cutting machine control system |
| CN109641317A (en) * | 2016-08-19 | 2019-04-16 | 利惠商业有限公司 | The laser of clothes arranges |
| CN111037095A (en) * | 2018-10-12 | 2020-04-21 | 通快机床两合公司 | Machine for separating plate-shaped workpieces |
| CN111203653A (en) * | 2018-11-16 | 2020-05-29 | 中达电子零组件(吴江)有限公司 | Self-adaptive control device for adjusting position of laser cutting head and control method thereof |
| CN114227026A (en) * | 2021-12-10 | 2022-03-25 | 西安交通大学 | Ultrafast laser hole-controllable group hole precision machining device and method |
-
2005
- 2005-07-27 CN CN 200520114855 patent/CN2860712Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995830B (en) * | 2009-08-14 | 2012-08-15 | 中国舰船研究设计中心 | Ship high-precision control method |
| CN102101218A (en) * | 2009-12-22 | 2011-06-22 | 深圳市大族激光科技股份有限公司 | Insulating ring, manufacturing method and laser cutter using insulating ring |
| CN102101218B (en) * | 2009-12-22 | 2014-06-18 | 深圳市大族激光科技股份有限公司 | Insulating ring, manufacturing method and laser cutter using insulating ring |
| CN102156436A (en) * | 2011-05-18 | 2011-08-17 | 山西飞虹激光科技有限公司 | Multi-closed-loop feedback control system for laser cutter |
| CN102310275A (en) * | 2011-06-27 | 2012-01-11 | 胡忠 | Numerical-control laser fracture-control cutting machine |
| CN103203555A (en) * | 2012-01-11 | 2013-07-17 | 昆山允升吉光电科技有限公司 | Mask plate assembling test machine |
| CN103203555B (en) * | 2012-01-11 | 2017-06-13 | 昆山允升吉光电科技有限公司 | A kind of mask plate assembling test machine |
| CN104985330A (en) * | 2015-06-12 | 2015-10-21 | 嘉兴威斯柏自动化科技有限公司 | Small-power laser hybrid cutter and using method thereof |
| CN105081562B (en) * | 2015-08-27 | 2017-03-22 | 武汉奥森迪科智能电控科技有限公司 | Totally-digital laser focusing automatic tracking system |
| CN105081562A (en) * | 2015-08-27 | 2015-11-25 | 武汉奥森迪科智能电控科技有限公司 | Totally-digital laser focusing automatic tracking system |
| CN105817771A (en) * | 2016-05-01 | 2016-08-03 | 佛山市嘉峻制衣有限公司 | Laser cutting machine for reflective band |
| CN105817771B (en) * | 2016-05-01 | 2020-10-16 | 佛山市嘉峻制衣有限公司 | Laser cutting machine for reflective tape |
| CN109641317A (en) * | 2016-08-19 | 2019-04-16 | 利惠商业有限公司 | The laser of clothes arranges |
| CN106392307A (en) * | 2016-11-08 | 2017-02-15 | 中国人民解放军空军第航空学院 | Laser cutting follow-up control and automatic objective focusing system |
| CN107240090A (en) * | 2017-04-18 | 2017-10-10 | 上海柏楚电子科技有限公司 | A kind of method of sheet material contours extract |
| CN107240090B (en) * | 2017-04-18 | 2020-09-04 | 上海柏楚电子科技股份有限公司 | Method for extracting plate profile |
| CN107243700A (en) * | 2017-08-08 | 2017-10-13 | 江苏大金激光科技有限公司 | A kind of amplitude solid laser cutting machine |
| CN107363418A (en) * | 2017-08-08 | 2017-11-21 | 江苏大金激光科技有限公司 | Laser cutting machine control system |
| CN111037095A (en) * | 2018-10-12 | 2020-04-21 | 通快机床两合公司 | Machine for separating plate-shaped workpieces |
| CN111203653A (en) * | 2018-11-16 | 2020-05-29 | 中达电子零组件(吴江)有限公司 | Self-adaptive control device for adjusting position of laser cutting head and control method thereof |
| CN114227026A (en) * | 2021-12-10 | 2022-03-25 | 西安交通大学 | Ultrafast laser hole-controllable group hole precision machining device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 |