CN103212886B - A kind of method for detection laser cutting head plug-hole - Google Patents
A kind of method for detection laser cutting head plug-hole Download PDFInfo
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- CN103212886B CN103212886B CN201210015830.2A CN201210015830A CN103212886B CN 103212886 B CN103212886 B CN 103212886B CN 201210015830 A CN201210015830 A CN 201210015830A CN 103212886 B CN103212886 B CN 103212886B
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Abstract
The present invention relates to laser cutting auxiliary equipment field, be specifically related to a kind of detection method of laser cutting nozzle plug-hole.For a method for detection laser cutting head plug-hole, judge the stopping state of cutting head by detecting cutting head compressed air inside changes in flow rate situation in real time.When compressed air require reduces to a setting range, the blocking of prompting cutting head.Owing to adopting technique scheme, the stopping state of the understanding cutting head that the present invention can be real-time, and cleaning prompting can be carried out in time under cutting head stopping state.
Description
Technical field
The present invention relates to laser cutting auxiliary equipment field, be specifically related to a kind of detection method of laser cutting nozzle plug-hole.
Background technology
In laser cutting process, cut material 11 surface is irradiated to after laser beam line focus, in order to auxiliary laser cutting, cutting head 12 is needed coaxially to blow, pressure-air or oxygen is adopted to be used as assist gas, as shown in Figure 1, when cutting head 12 lower surface distance cut surface is nearer, the material after partial melting is had can to run up to cutting head 12 inwall.As shown in Figure 2, the time is longer, and the waste material of accumulation can be more, and final dross 13 causes cutting head 12 blocked, stops the transmission of laser beam, causes cutting head 12 cisco unity malfunction.By the impact of processing technology, can not carry out the stopping state of detection laser cutting head by frequent shutdown in laser cutting process, in laser cutting process, the stopping state of laser cutting nozzle be can not determine.
Summary of the invention
The object of the invention is to, a kind of method for detection laser cutting head plug-hole is provided, solves above technical problem.
Technical problem solved by the invention can realize by the following technical solutions:
For a method for detection laser cutting head plug-hole, it is characterized in that, judging the stopping state of cutting head by detecting cutting head compressed air inside changes in flow rate situation in real time; When compressed air require reduces to a setting range, the blocking of prompting cutting head.
Specifically adopt with the following method:
Compressed air enters flow sensor through pressure-reducing valve, then cutting head is entered, coaxially blow, described flow sensor detects compressed-air actuated flow in real time, and sends flow signal to signal processing module, and described signal processing module processes flow signal, when flow information is lower than a setting value, think that described cutting head blocks, need cleaning, described signal processing module carries out cleaning prompting.
The present invention is not when cutting head blocks, and due to the constant cross section of cutting head, in level pressure situation, the compressed air require of unit interval internal consumption is also constant, and therefore flow sensor exports a particular flow rate signal.In cutting process, when cutting head constantly blocks, the sectional area also corresponding reduction of cutting head, now compressed-air actuated pressure still keeps constant, therefore the air mass flow of unit interval internal consumption will reduce thereupon, the flow signal that flow sensor exports also reduces thereupon, and when flow signal exceedes certain limit, alert is cleared up.Above-mentioned design, can carry out naked eyes and checks cutting head whether stopping state by frequent shutdown, and cutting head jam detection is simple and convenient, with low cost, detect accurately.
When flow information is lower than a minimum setting value, thinks that described cutting head blocks, can not normally work, now, described signal processing module can control laser cutting system and quit work, and carries out cleaning prompting.After signal processing module is pointed out, after operating personnel still fail to clear up cutting head in time, cause cutting head to block serious, and when cannot work, signal processing module automatically control laser cutting system and stop cutting, to reduce energy waste.
Described signal processing module can also carry out remote prompts by a wireless transmitter module.To realize prompting in time, clear up object in time.
Beneficial effect: owing to adopting technique scheme, the stopping state of the understanding cutting head that the present invention can be real-time, and cleaning prompting can be carried out in time under cutting head stopping state.
Accompanying drawing explanation
Structural representation when Fig. 1 is cutting head work;
Fig. 2 is that cutting head inside is containing structural representation during dross;
Fig. 3 is cutting head jam detection principle schematic of the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
With reference to Fig. 1, Fig. 3, a kind of method for detection laser cutting head plug-hole, judges the stopping state of cutting head 12 by detecting cutting head compressed air inside changes in flow rate situation in real time; When compressed air require reduces to a setting range, prompting cutting head 12 blocks.Specifically adopt with the following method: compressed air enters flow sensor 3 through pressure-reducing valve 2, then cutting head 12 is entered, coaxially blow, flow sensor 3 detects compressed-air actuated flow in real time, and sends flow signal to signal processing module, and signal processing module processes flow signal, when flow information is lower than a setting value, think that cutting head 12 blocks, need cleaning, signal processing module carries out cleaning prompting.The present invention is not when cutting head 12 blocks, and due to the constant cross section of cutting head 12, in level pressure situation, the compressed air require of unit interval internal consumption is also constant, and therefore flow sensor 3 exports a particular flow rate signal.In cutting process, when cutting head 12 constantly blocks, the sectional area also corresponding reduction of cutting head 12, now compressed-air actuated pressure still keeps constant, therefore the air mass flow of unit interval internal consumption will reduce thereupon, the flow signal that flow sensor 3 exports also reduces thereupon, and when flow signal exceedes certain limit, alert is cleared up.Above-mentioned design, can carry out naked eyes and checks cutting head 12 whether stopping state by frequent shutdown, and cutting head 12 jam detection is simple and convenient, with low cost, detect accurately.
When flow information is lower than a minimum setting value, thinks that cutting head 12 blocks, can not normally work, now, signal processing module can control laser cutting system and quit work, and carries out cleaning prompting.After signal processing module is pointed out, after operating personnel still fail to clear up cutting head 12 in time, cause cutting head 12 to block seriously, and when cannot work, signal processing module controls laser cutting system automatically to be stopped cutting, to reduce energy waste.
Signal processing module can also carry out remote prompts by a wireless transmitter module.To realize prompting in time, clear up object in time.
In order to realize detection method of the present invention, can design following detection system: flow sensor 3 connection signal processing module, signal processing module connects reminding module, and signal processing module also connects the control end of laser cutting system.
Reminding module can adopt luminous prompting module, also can adopt auditory tone cues module.Remote prompts module can also be adopted.Signal processing module carries out remote prompts by wireless transmitter module.Wireless transmitter module can adopt 3G module, so that information can be sent to the 3G mobile of operating personnel or the portable set of band 3G function by 3G network by signal processing module.Wireless transmitter module also can adopt wireless network card, so that information can be sent to by wireless network the host computer be connected with internet by signal processing module, convenient operation personnel are long-range to be checked.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. for a method for detection laser cutting head plug-hole, it is characterized in that, judging the stopping state of cutting head by detecting cutting head compressed air inside changes in flow rate situation in real time; When compressed air require reduces to a setting range, the blocking of prompting cutting head;
Adopt with the following method:
Compressed air enters flow sensor through pressure-reducing valve, then cutting head is entered, coaxially blow, described flow sensor detects compressed-air actuated flow in real time, and sends flow signal to signal processing module, and described signal processing module processes flow signal, when flow information is lower than a setting value, think that described cutting head blocks, need cleaning, described signal processing module carries out cleaning prompting.
2. a kind of method for detection laser cutting head plug-hole according to claim 1, it is characterized in that: when flow information is lower than a minimum setting value, think that described cutting head blocks, can not normally work, now, described signal processing module controls laser cutting system and quits work, and carries out cleaning prompting.
3. a kind of method for detection laser cutting head plug-hole according to claim 1 and 2, is characterized in that: described signal processing module carries out remote prompts by a wireless transmitter module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210015830.2A CN103212886B (en) | 2012-01-19 | 2012-01-19 | A kind of method for detection laser cutting head plug-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210015830.2A CN103212886B (en) | 2012-01-19 | 2012-01-19 | A kind of method for detection laser cutting head plug-hole |
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| Publication Number | Publication Date |
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| CN103212886A CN103212886A (en) | 2013-07-24 |
| CN103212886B true CN103212886B (en) | 2015-09-30 |
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| CN105312781A (en) * | 2014-12-08 | 2016-02-10 | 牛得草 | Method for detecting whether materials are penetrated or not by using change of gas pressure or flow |
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| JPS5595546A (en) * | 1979-01-12 | 1980-07-19 | Mitsubishi Heavy Ind Ltd | Injection molding machine |
| JPS60203385A (en) * | 1984-03-28 | 1985-10-14 | Mitsubishi Electric Corp | Laser beam machining machine |
| JPS62110887A (en) * | 1985-11-11 | 1987-05-21 | Nec Corp | Laser cutting machine |
| JPH08174261A (en) * | 1994-12-27 | 1996-07-09 | Amada Co Ltd | Control method of assist gas for laser machining and device therefor |
| CN1947078A (en) * | 2004-04-21 | 2007-04-11 | 费希尔控制产品国际有限公司 | Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
| CN201754120U (en) * | 2010-08-11 | 2011-03-02 | 天津电装电子有限公司 | Fuel pump elbow blockage detector |
| CN102000493A (en) * | 2010-12-13 | 2011-04-06 | 北京机电院高技术股份有限公司 | Lime slurry atomizing method and device for treating household waste incineration smoke |
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2012
- 2012-01-19 CN CN201210015830.2A patent/CN103212886B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5595546A (en) * | 1979-01-12 | 1980-07-19 | Mitsubishi Heavy Ind Ltd | Injection molding machine |
| JPS60203385A (en) * | 1984-03-28 | 1985-10-14 | Mitsubishi Electric Corp | Laser beam machining machine |
| JPS62110887A (en) * | 1985-11-11 | 1987-05-21 | Nec Corp | Laser cutting machine |
| JPH08174261A (en) * | 1994-12-27 | 1996-07-09 | Amada Co Ltd | Control method of assist gas for laser machining and device therefor |
| CN1947078A (en) * | 2004-04-21 | 2007-04-11 | 费希尔控制产品国际有限公司 | Methods and apparatus for operating and performing diagnostics in a control loop of a control valve |
| CN201754120U (en) * | 2010-08-11 | 2011-03-02 | 天津电装电子有限公司 | Fuel pump elbow blockage detector |
| CN102000493A (en) * | 2010-12-13 | 2011-04-06 | 北京机电院高技术股份有限公司 | Lime slurry atomizing method and device for treating household waste incineration smoke |
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| CN103212886A (en) | 2013-07-24 |
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