雕刻機(jī)圖形處理系統(tǒng)的研究與實(shí)現(xiàn).pdf

1、寧夏大學(xué)碩士學(xué)位論文雕刻機(jī)圖形處理系統(tǒng)的研究與實(shí)現(xiàn)姓名：馬凱申請學(xué)位級別：碩士專業(yè)：電路與系統(tǒng)指導(dǎo)教師：楊澤林201103IIAbstractNC(numericalcontrol)machiningisamachiningmethodwhichcontrolsthedisplacementofcomponentcutterwiththenumericalinfmationthesourceofthenumericalinfmation

2、isthegraphicfiles.HoweverNCsystemcannotrunthegraphicfilesdirectlyonlyafterthegraphicinfmationwasextractedconvertedtothecontrolinfmationofNCmachinecantheNCsystemdrivetheNCmachinetowk.Twospecialgraphicsfilesofdifferentgani

3、zationalstructurewereanalyzedresearchedinthepaperwhicharetheDXFfilesbasedonAutoCADSTLfilesbasedonCAXA.FirstlyAutoCADDXFfilewasstudiedthegraphicsentitydatawasextractedfromDXFfilethroughprogramming.Bythiswaytheautomaticgen

4、erationofCNCcodecouldberealized.Whileprocessingthesegraphicentitydatatheround(arc)ellipses(arc)curvelinescouldbefittedbysmallstraightlines.Byestablishingdatalist，theprocesseddatacanbestedintothelist.Indertoreducethetimes

5、ofupdownofcuttingimproveprocessingefficiencywhileprocessingastalgithmoflistionwasadoptedinthedatadeposit.ThenonthebasisofthecarvingrequirementsfmachiningtechniquesthedatainthelistwillbeputoutwiththetextfmofCNCcode.Indert

6、overifythecrectnessofthegeneratedCNCcodeVisualC6.0wasadoptedtosimulatethetrajectyofNCmachiningprocedure.Itcoulddisplaythegraphictracesofcarvingdirectlyvividly.Secondlythisthesisstudiedthestratifiedprocessingtechnologiesb

7、efethreedimensionalmoldingmanufacturewasprocessed.Onthebasisofthefullanalysisoftheacteristicsoftheexistinglayeringalgithmthelayeringalgithmexistinginthethreedimensionalmoldingmanufactureprocesswasdesignedimproved.Thusani

8、nterjectionallystratifiedalgithmwasproposedbasedongroupingsting.ItnotonlybetterimprovestheSTLdatastructurereducestimeconsumingoftheslicesbutalsoimprovestheefficiencyofslicessuccessfullyachievestherapidstratificationofsli

9、cesinSTLmodelsuccessfully.FinallyanexperimentalcasewasoperatedbywhichanautomaticallygeneratedCNCcodecouldbetransferredintoitsengravingsystem.Thispromotesthecarvingresultstogainadesiredeffect.Keywds：DXFfilesSmalllinefitti