碳纤维/环氧树脂复合材料长桁成型自动合模技术研究

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Research on automatic mold-closing technology for stringer molding of carbon fiber reinforced epoxy resin composites

BO Donghai ，WEI Tong，Zhou Houchao，YIN Rongying，MA Jichuan（Harbin Aircraft Industry Group Co.，Ltd.，Harbin ）

Abstract：Aimingatthekeyproblemsoflowpositioning accuracy，dificult adjustmentandloweficiency inthe manual mold-closing of mandrels during the stringermolding ofcarbon fiberreinforced epoxyresincomposites，this paper proposes asystematic solution.Firstly，byanalyzingandotimizing the mold-closing processflow，theautomaticcontrolofsomeprocesses is realized.Secondly，an innovative automatic flippng mold-closing devicewith a modularstructure isdesigned; basedonfiniteelementanalysis，thestrengthandstfnessoftheclamping modulearesystematicallyoptimized，enabling it to achieveaccurate positioningand stable clampingof mandrelsofvarious specificationsunderboth horizontalandvertical working conditions.Intermsof thecontrolmethod，atechnicalschemecombiningautomaticdrivingand micro-adjustment attheendisadopted.Whileensuring thesimplestructureofthedevice，itsuccessfullyrealizes theintegrateddesignof multi-egree-of-freedomposture adjustmentfunctionssuchasmandrellfting，closingandflipping.Inaddition，this study introduces afloating platformmechanismwithtwo-dimensionaladjustmentfunction，whicheffctivelycompensates forthe mandrel placementdeviation，ensures therealizationofone-timeaccuratemold-closing，andsignificantlyimproves heautomation level and production efficiency of the composite stringer molding process.

Keywords： composite stringers; automatic flipping; molding device; positioning

1引言

复合材料以其低密度、高强度、可设计性好、易于整体成型等突出优点在航空领域得到越来越广泛的应用[1-2]。（剩余4688字）