CN102117053A - Intelligent computer numerical control system for laser cutter - Google Patents
Intelligent computer numerical control system for laser cutter Download PDFInfo
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- CN102117053A CN102117053A CN2010105963731A CN201010596373A CN102117053A CN 102117053 A CN102117053 A CN 102117053A CN 2010105963731 A CN2010105963731 A CN 2010105963731A CN 201010596373 A CN201010596373 A CN 201010596373A CN 102117053 A CN102117053 A CN 102117053A
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Abstract
The invention belongs to the field of numerical control application and relates to a computer numerical control system, in particular to an intelligent numerical control system for a laser cutter. The system is provided with a cutting state automatic detection unit, a laser cutting expert system and a laser cutting process database on the basis of a universal and open computer numerical control system and has the characteristics of automatic detection, automatic diagnosis, automatic optimization, automatic learning function and other intelligent characteristics. The laser cutter provided with the intelligent computer numerical control system can carry out online measurement to cutting quality, generate the optimal process scheme based on the cutting quality, optimize the laser output power, the axis movement speed, the protection gas pressure and other parameters and ensure good quality, high speed and low energy consumption during the whole cutting process.
Description
Technical field
The present invention relates to a kind of Computerized digital control system, particularly a kind of laser cutting machine intelligent numerical control system belongs to digital control application.
Background technology
In digital control field, digital control system is a kind ofly to come operating part or whole Numerical Control functions and be furnished with interface circuit and the automation control system of servo drive according to the control program of storing in the storer.Digital control system realizes that by the digital command of utilizing numeral, literal and symbol to form mechanical quantity such as position, angle, speed and switching value to one or more plant equipment control, and realizes automated job.
As the recent development of Numeric Control Technology, Computerized digital control system is to be a kind of dedicated computer system of hardware foundation with the computing machine.Computerized digital control system is made up of numerical control program, input media, output unit, computer numerical control device, programmable logic controller (PLC), motor driver and pick-up unit etc.The operational mode of Computerized digital control system is: numerical control program is input to the computer numerical control device by input media, the computer numerical control device carries out interpolation operation by numerical control program, send steering order to motor driver by output unit, motor driver amplifies steering order, is moved on request by driven by servomotor machinery; Pick-up unit detects the movement position or the speed of machinery, and feeds back to control system, comes the Correction and Control instruction.
The technology of tool development prospect is a digital control system in open type in the Computerized digital control system, its hardware, software and bus specification are all opened to the outside world, owing to have sufficient soft, hardware resource to be utilized, system hardware and software can be upgraded along with development of computer, and has also brought convenience for user's secondary development.Digital control system in open type as platform, adopts real time operating system with industrial computer, the various functions of digital control system is provided, and transmits data by servo card, the motion of control coordinate axis motor.
Existing laser cutting machine common configuration digital control system in open type is controlled each spindle motor motion, laser output power, blanket gas pressure and other switching value and the analog quantity of lathe.But all steering orders of the digital control system in open type of existing laser cutting machine configuration are all worked out in advance by the operator, in process, can't adjust automatically, has following shortcoming: 1) do not possess online measuring ability, can't know the actual conditions of cut, can only machine the back by manually detecting; 2) do not possess automatic diagnostic function, can't judge the rationality of cutting technique parameter according to the effect of cutting processing; 3) do not possess cutting technique parameter automatic optimization function; 4) do not possess the basis statistics of cutting parameter in the past, carry out intelligent analysis and autolearn feature.
Chinese patent " a kind of numerical control laser cutter control method " (publication number CN1555956) provide a kind of numerical control laser cutter control method, this method is by the digital control system control numerical control laser cutter of numerical control laser cutter, servoamplifier and servomotor, realization suddenly stops state or non-urgency is stopped, open servo or close servo, the control numerical control program continues or stops, be provided with laser frequency/dutycycle/time-to-climb, select zlasing mode and laser low-and high-frequency and height dormancy etc., but this method purpose is to improve the ray machine electricity harmony of digital control laser diced system, improve efficiency of laser cutting, do not have automatic detection, automatic diagnosis, Automatic Optimal and autolearn feature.Chinese patent " laser cutting machine tool for precision finishing " (publication number CN1730225) provides a kind of function of utilizing reflection arc light or small reflection laser to carry out automatic focusing; focus accurately can be located; thereby improve the machining precision of laser cutting machine, but do not automatically adjust for laser output power, each movement velocity, blanket gas pressure and other parameters.Chinese patent " closed-loop feedback intelligent control system of tunable laser " (publication number CN201413925) provides a kind of closed-loop feedback intelligent control system of tunable laser, data acquisition system (DAS) is gathered spectroscopical output laser parameter, main frame compares laser parameter of gathering and the laser parameter that sets in advance in main frame, form the swing angle that control signal is controlled mechanical turntable according to the difference between the two, realization is to the output wavelength auto-scaling of laser instrument, automatically finish power detection and adjusting, multiple function such as wavelength and power monitoring, but, this technology only detects and regulates laser-related parameters, each movement velocity and gas pressure and other parameters is not regulated.Chinese patent " a kind of Laser Processing control method, system and cut machining system " (publication number CN101862903A) provide a kind of Laser Processing control method, system and cut machining system, automatic sampling laser beam process velocity, and calculate the output power of laser generator, but each movement velocity and gas pressure and other parameters are not carried out corresponding adjusting according to the laser beam process velocity.United States Patent (USP) " Laser cutting machine and method for laser cutting with measurement of resistance between cutting he
Summary of the invention
The objective of the invention is to overcome above-mentioned technical disadvantages, a kind of laser cutting machine intelligent computer digital control system is provided.Native system is on the basis of general open computer digital control system, dispose cut state automatic detection unit, cut expert system and laser cutting parameter database, possessed intelligent characteristics such as automatic detection, automatic diagnosis, Automatic Optimal and autolearn feature.
To achieve these goals, the present invention has taked following technical scheme:
System is made up of hardware components and software section.
Hardware components comprises: man-machine interface 1, industrial computer 2, Optical Maser System 16, I/O photoelectric isolation module 17, detection signal transmitter 6, multiaxis driver module 7, X-axis motor 8, compositions such as y-axis motor 9, Z spindle motor 10, crossbeam and X-axis driving-chain 11, cut state collector 12, workpiece 13, worktable 14, longeron and Y-axis driving-chain 15; Wherein industrial computer 2 comprises multiaxis control card 4, data collecting card 5, I/O module 16.
Software section comprises: numerical control software module 3, cut state detect and diagnostic module 19, cut expert system module 20, cut integrated data library module 21.Software section is installed in the industrial computer 2.
Description of drawings
Fig. 1 system architecture and functional block diagram;
Fig. 2 cut state detects and diagnostic module figure automatically;
Fig. 3 cut expert system module figure;
Fig. 4 laser cutting parameter database module figure;
Among the figure: 1, man-machine interface, 2, industrial computer, 3, the numerical control software module, 4, the multiaxis control card, 5, data collecting card, 6, the detection signal transmitter, 7, the multiaxis driver module, 8, the X-axis motor, 9, y-axis motor, 10, the Z spindle motor, 11, crossbeam and X-axis driving-chain, 12, the cut state collector, 13, workpiece, 14, worktable, 15, longeron and Y-axis driving-chain, 16, Optical Maser System, 17, the I/O photoelectric isolation module, 18, the I/O module, 19, cut state detects and diagnostic module, 20, the cut expert system module, 21, cut integrated data library module, 22, compound filter, 23, the cutting parameter processor, 24, cutting defective and machining state model bank, 25, laser cutting parameter scheme knowledge base, 26, knowledge acquisition module, 27, the interpretation of rules module, 28, the inference machine module, 29, integrated data base, 30, the integrated database management module.
Annexation and software information flow process below in conjunction with the description of drawings hardware components.
Among Fig. 1, man-machine interface 1 is made up of keyboard, mouse, control panel and display, the interface that laser cutting machine is carried out operations such as parameter setting, program composition, process operation as the operator, and be connected with industrial computer 2 by signal wire; Industrial computer has been pre-installed operating system software, and numerical control software module 3, cut state detection and diagnostic module 19, cut expert system module 20 and cut integrated data library module 21 have been installed on this basis, finishes software function; Also multiaxis control card 4, data collecting card 5 and I/O module 18 have been installed in addition at pci expansion slot, and these modules respectively the laser cutting machine relevant hardware connect, finish hardware capability; Wherein, multiaxis control card 4 is connected with multiaxis driver module 7, gives motor 8,9,10 power supplies by multiaxis driver module 7, and finishes predetermined motion control; Data collecting card 5 is connected with detection signal transmitter 6, and the signal that cut state collector 12 is sent back amplifies and gathers reception; Switching value signal sources such as the switch of I/O module 18 and Optical Maser System and cutting machine, button, spacing, indication are connected, and finish functions such as conditions of machine tool collection and logical action.
Among Fig. 2, cut state collector 12 is positioned near the laser cutting head, the machining state information that is used for the online real time collecting cut surface, this information is undertaken being sent to the data collecting card 5 that is arranged in industrial computer 2 after circuit filtering and the amplification by detection signal transmitter 6, and signal carries out sending into cut state detection and diagnostic module 19 after the A/D conversion in data collecting card 5; Cut state detects with diagnostic module 19 to be made up of compound filter 22, cutting parameter processor 23 and cutting defective and machining state model bank 24; The cut state information that compound filter 22 transmits data collecting card 5 is carried out mixed filtering and is handled, remove noise and other background interference signal, generate the machining state digital information, 23 pairs of machining state digital informations of cutting parameter processor carry out modelling to be handled, and with reference to the typical model of being stored in cutting defective and the machining state model bank 24 existing machining state is judged, provide cut quality and judge conclusion.
Among Fig. 3, cut expert system module 20 is made up of laser cutting parameter scheme knowledge base 25, knowledge acquisition module 26, interpretation of rules module 27, inference machine module 28.According to the judgement of cut state detection with 19 pairs of current cut states of diagnostic module and cut quality, the cut expert system is called existing process program and machined parameters in the laser cutting parameter scheme knowledge base 25 by inference machine module 28, and send to corresponding I/O module 18 and multiaxis control card 4 by software numerical control module, finish control thus to each movement velocity and track, laser output power, blanket gas pressure and other parameters; If the pairing technological parameter of this machining state not in the laser cutting parameter scheme knowledge base 25, then expert system is carried out artificial treatment by man-machine interface notifying operation person, and by knowledge acquisition module 26 and interpretation of rules module 27 the new knowledge of operator's input generation, finish the automatic acquisition process of laser cutting parameter knowledge, newly-generated knowledge is as the reference of processing later on.
Among Fig. 4, cut integrated data base 21 is made up of integrated data base 29 and integrated database management module 30, and data such as all program files, conditions of machine tool, user program, machining state are carried out storage administration.
Embodiment
Describe the course of work of present embodiment in detail below in conjunction with accompanying drawing.
According to the judgement of cut state detection with 19 pairs of current cut states of diagnostic module and cut quality, the cut expert system is called existing process program and machined parameters in the laser cutting parameter scheme knowledge base 25 by inference machine module 28, and send to corresponding I/O module 18 and multiaxis control card 4 by software numerical control module, finish control thus to each movement velocity and track, laser output power, blanket gas pressure and other parameters; If the pairing technological parameter of this machining state not in the laser cutting parameter scheme knowledge base 25, then expert system is carried out artificial treatment by man-machine interface notifying operation person, and by knowledge acquisition module 26 and interpretation of rules module 27 the new knowledge of operator's input generation, finish the automatic acquisition process of laser cutting parameter knowledge, newly-generated knowledge is as the reference of processing later on.
Be equipped with the laser cutting machine of intelligent computer digital control system; can online detection cut quality; and according to the best cutting technique scheme of cut quality generation; laser output power, each movement velocity, blanket gas pressure and other parameters are optimized processing, guarantee that whole cutting process quality is good, speed is fast, energy consumption is low.
Claims (6)
1. laser cutting machine intelligent computer digital control system, comprise industrial computer, the numerical control software module, multiaxis control card, data collecting card, the multiaxis driver module, motor, cut state collector, I/O module etc., it is characterized in that: this system also is equipped with cut state and detects and diagnostic module (19), cut expert system module (20) and cut integrated data library module (21), finishes intelligent control function together with operation.How (this speech of work compound is too abstract, and describe is cooperating between them.)
A kind of laser cutting machine intelligent computer digital control system according to claim 1, it is characterized in that: cut state monitoring and diagnosis module (19) is carried out online real time collecting to the Laser cutting state, and cut quality model and the machining state that generates sent to cut expert system module (20).
A kind of laser cutting machine intelligent computer digital control system according to claim 1 is characterized in that: cut expert system module (20) provides the cutting technique scheme of optimization at cut quality model and machining state.(want the concise and to the point annexation of describing: the output of cut state monitoring and diagnosis module 19 links to each other or the like with cut expert system module 20.)
2. a kind of laser cutting machine intelligent computer digital control system according to claim 1, it is characterized in that: technological parameter is sent to Optical Maser System (16) by I/O module (18) and multiaxis control card (4) to numerical control software module (3) and the cutting machine parts (this class speech of corresponding component generally should not occur, directly mentioning cutting machine gets final product), finish cutting operation.(annexation will be write exactly: the output of numerical control software module 3 links to each other with the input of I/O module 18 with multiaxis control card 4, and the output of I/O module 18 and multiaxis control card 4 links to each other with Optical Maser System cogency cutting mill parts respectively again.)
3. a kind of laser cutting machine intelligent computer digital control system according to claim 1 is characterized in that: conditions of machine tool information, workpiece information, program information data are carried out storage administration in cut integrated data library module (21).(can not so write, the concrete parts of database module and those be linked to each other that it is clear to write, such as conditions of machine tool information, workpiece information, program information data all are where to be gathered by those parts.The speech that waits and so on all should not appear yet)
4. a kind of laser cutting machine intelligent computer digital control system according to claim 1 is characterized in that: described cut state detects with diagnostic module (19) to be made up of compound filter (22), cutting parameter processor (23) and cutting defective and machining state model bank (24).(cut state detects and the annexation of diagnostic module 19 by compound filter 22, cutting parameter processor 23 and cutting defective and machining state model bank 24 several modules.The same)
The cut state information that compound filter (22) transmits data collecting card (5) is carried out the mixed filtering processing, removes noise and other background interference signal, generates the machining state digital information.
Cutting parameter processor (23) carries out modelling to the machining state digital information to be handled, and with reference to the typical model of being stored in cutting defective and the machining state model bank (24) existing machining state is judged, provides cut quality and judges conclusion.
5. a kind of laser cutting machine intelligent computer digital control system according to claim 1 is characterized in that:
Described cut expert system module (20) is made up of laser cutting parameter scheme knowledge base (25), knowledge acquisition module (26), interpretation of rules module (27), inference machine module (28).(will write out this several syndeton)
Detect and the judgement of diagnostic module (19) to current cut state and cut quality according to cut state, the cut expert system is called existing process program and machined parameters in the laser cutting parameter scheme knowledge base (25) by inference machine module (28).
6. according to claim 1 or the described cut expert system module of claim 5 (20), it is characterized in that: when in the laser cutting parameter scheme knowledge base (25) not during the pairing technological parameter of this machining state, cut expert system module (20) is carried out artificial treatment by man-machine interface notifying operation person, and by knowledge acquisition module (26) and interpretation of rules module (27) the new knowledge of operator's input generation, finish the automatic acquisition process of laser cutting parameter knowledge.
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| CN2010105963731A CN102117053A (en) | 2010-12-20 | 2010-12-20 | Intelligent computer numerical control system for laser cutter |
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| CN2010105963731A CN102117053A (en) | 2010-12-20 | 2010-12-20 | Intelligent computer numerical control system for laser cutter |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102426435A (en) * | 2011-07-28 | 2012-04-25 | 杭州大华工控技术有限公司 | Intelligent operation realizing system for splitting machine |
| CN102855326A (en) * | 2012-09-14 | 2013-01-02 | 山东省计算中心 | Managing method of laser cutting technological parameters |
| CN103433621A (en) * | 2013-07-29 | 2013-12-11 | 燕山大学 | Switching unit and switching method for operating states of laser cutting head |
| CN104191093A (en) * | 2014-08-29 | 2014-12-10 | 电子科技大学 | Laser cutting machine with automatic positioning function |
| CN106853554A (en) * | 2015-12-04 | 2017-06-16 | 彭翔 | Intelligent laser system of processing and its processing method |
| CN107193260A (en) * | 2017-06-06 | 2017-09-22 | 太仓斯普宁精密机械有限公司 | A kind of laser processing control device |
| CN107357255A (en) * | 2017-07-28 | 2017-11-17 | 哈尔滨理工大学 | Laser cutting machine protection steel plate repairing route planing method based on learning strategy |
| US9839975B2 (en) | 2013-12-12 | 2017-12-12 | Bystronic Laser Ag | Method for configuring a laser machining machine |
| CN107745188A (en) * | 2017-09-30 | 2018-03-02 | 深圳信息职业技术学院 | A kind of picosecond laser process equipment |
| US9937590B2 (en) | 2010-07-22 | 2018-04-10 | Bystronic Laser Ag | Laser processing machine |
| CN108436252A (en) * | 2017-02-15 | 2018-08-24 | 发那科株式会社 | Laser processing device, the diagnostic method of laser oscillator and recording medium |
| CN108520675A (en) * | 2018-04-17 | 2018-09-11 | 李涛 | Diamond teaching experimental base |
| CN108733000A (en) * | 2018-06-21 | 2018-11-02 | 上海柏楚电子科技股份有限公司 | A kind of large format galvanometer system of processing and control method |
| CN108907453A (en) * | 2018-08-03 | 2018-11-30 | 英诺激光科技股份有限公司 | A kind of laser processing analytical equipment and method with self-learning function |
| CN110989334A (en) * | 2019-11-03 | 2020-04-10 | 武汉光谷航天三江激光产业技术研究有限公司 | Dynamic adjusting device for control parameters of laser cutting wafer |
| CN111185681A (en) * | 2020-03-05 | 2020-05-22 | 浙江嘉泰激光科技股份有限公司 | Intelligent industrial laser cutting optimization system and intelligent laser cutting optimization method |
| CN111702349A (en) * | 2020-06-22 | 2020-09-25 | 苏州科韵激光科技有限公司 | Laser cutting device and cutting method |
| CN113111488A (en) * | 2021-03-10 | 2021-07-13 | 东风柳州汽车有限公司 | Virtual debugging method and device for laser cutting parameters of robot and storage medium |
| CN113330377A (en) * | 2018-12-20 | 2021-08-31 | Etxe-Tar有限公司 | Method and system for operating a machine in a manufacturing process |
| CN113359610A (en) * | 2021-07-01 | 2021-09-07 | 中国工程物理研究院激光聚变研究中心 | Method, device, system and medium for monitoring state of ultraprecise diamond fly-cutting machine tool |
| CN113848814A (en) * | 2021-09-27 | 2021-12-28 | 泰尔重工股份有限公司 | Laser cutting machine control program modularization system |
| CN114721328A (en) * | 2022-06-07 | 2022-07-08 | 无锡朗珀信息科技有限公司 | Intelligent numerical control system of grid section cutting machine |
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| US9937590B2 (en) | 2010-07-22 | 2018-04-10 | Bystronic Laser Ag | Laser processing machine |
| CN102426435A (en) * | 2011-07-28 | 2012-04-25 | 杭州大华工控技术有限公司 | Intelligent operation realizing system for splitting machine |
| CN102855326A (en) * | 2012-09-14 | 2013-01-02 | 山东省计算中心 | Managing method of laser cutting technological parameters |
| CN103433621A (en) * | 2013-07-29 | 2013-12-11 | 燕山大学 | Switching unit and switching method for operating states of laser cutting head |
| US9839975B2 (en) | 2013-12-12 | 2017-12-12 | Bystronic Laser Ag | Method for configuring a laser machining machine |
| CN104191093A (en) * | 2014-08-29 | 2014-12-10 | 电子科技大学 | Laser cutting machine with automatic positioning function |
| CN104191093B (en) * | 2014-08-29 | 2015-12-09 | 电子科技大学 | A kind of laser cutting machine with automatic positioning function |
| CN106853554A (en) * | 2015-12-04 | 2017-06-16 | 彭翔 | Intelligent laser system of processing and its processing method |
| CN106853554B (en) * | 2015-12-04 | 2018-08-21 | 彭翔 | Intelligent laser system of processing and its processing method |
| US10840664B2 (en) | 2017-02-15 | 2020-11-17 | Fanuc Corporation | Laser cutting device, method of diagnosing laser oscillator and computer-readable recording medium |
| CN108436252A (en) * | 2017-02-15 | 2018-08-24 | 发那科株式会社 | Laser processing device, the diagnostic method of laser oscillator and recording medium |
| CN108436252B (en) * | 2017-02-15 | 2020-06-16 | 发那科株式会社 | Laser processing apparatus, method of diagnosing laser oscillator, and recording medium |
| CN107193260A (en) * | 2017-06-06 | 2017-09-22 | 太仓斯普宁精密机械有限公司 | A kind of laser processing control device |
| CN107357255A (en) * | 2017-07-28 | 2017-11-17 | 哈尔滨理工大学 | Laser cutting machine protection steel plate repairing route planing method based on learning strategy |
| CN107357255B (en) * | 2017-07-28 | 2019-03-29 | 哈尔滨理工大学 | Laser cutting machine based on learning strategy protects steel plate repairing route planing method |
| CN107745188A (en) * | 2017-09-30 | 2018-03-02 | 深圳信息职业技术学院 | A kind of picosecond laser process equipment |
| CN108520675B (en) * | 2018-04-17 | 2020-06-26 | 中原工学院 | Diamond teaching experiment table |
| CN108520675A (en) * | 2018-04-17 | 2018-09-11 | 李涛 | Diamond teaching experimental base |
| CN108733000A (en) * | 2018-06-21 | 2018-11-02 | 上海柏楚电子科技股份有限公司 | A kind of large format galvanometer system of processing and control method |
| CN108733000B (en) * | 2018-06-21 | 2020-10-27 | 上海柏楚电子科技股份有限公司 | Large-breadth galvanometer processing system and control method |
| CN108907453A (en) * | 2018-08-03 | 2018-11-30 | 英诺激光科技股份有限公司 | A kind of laser processing analytical equipment and method with self-learning function |
| CN108907453B (en) * | 2018-08-03 | 2020-10-30 | 英诺激光科技股份有限公司 | Laser processing analysis device and method with self-learning function |
| CN113330377A (en) * | 2018-12-20 | 2021-08-31 | Etxe-Tar有限公司 | Method and system for operating a machine in a manufacturing process |
| CN110989334A (en) * | 2019-11-03 | 2020-04-10 | 武汉光谷航天三江激光产业技术研究有限公司 | Dynamic adjusting device for control parameters of laser cutting wafer |
| CN110989334B (en) * | 2019-11-03 | 2023-07-14 | 武汉光谷航天三江激光产业技术研究院有限公司 | Dynamic adjusting device for control parameters of laser cutting wafer |
| CN111185681A (en) * | 2020-03-05 | 2020-05-22 | 浙江嘉泰激光科技股份有限公司 | Intelligent industrial laser cutting optimization system and intelligent laser cutting optimization method |
| CN111702349A (en) * | 2020-06-22 | 2020-09-25 | 苏州科韵激光科技有限公司 | Laser cutting device and cutting method |
| CN113111488A (en) * | 2021-03-10 | 2021-07-13 | 东风柳州汽车有限公司 | Virtual debugging method and device for laser cutting parameters of robot and storage medium |
| CN113359610A (en) * | 2021-07-01 | 2021-09-07 | 中国工程物理研究院激光聚变研究中心 | Method, device, system and medium for monitoring state of ultraprecise diamond fly-cutting machine tool |
| CN113848814A (en) * | 2021-09-27 | 2021-12-28 | 泰尔重工股份有限公司 | Laser cutting machine control program modularization system |
| CN114721328A (en) * | 2022-06-07 | 2022-07-08 | 无锡朗珀信息科技有限公司 | Intelligent numerical control system of grid section cutting machine |
| CN114721328B (en) * | 2022-06-07 | 2022-09-02 | 无锡朗珀信息科技有限公司 | Intelligent numerical control system of grid section cutting machine |
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Application publication date: 20110706 |