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1、PBB系列数控板料折弯机PBBSeriesCNCSheetmetalPressbrakeTheTop-classTechnologiesofEuropePBB系列数控板料折弯机PBBSeriesCNCSheetmetalPressbrake流线型设计，高速度、高精度、高刚性的数控板料折弯机。电液伺服系统，全闭环控制滑块同步。工作台液压挠度补偿和喉口变形补偿机构，保证折弯深度和精度。后挡料采用数字式交流伺服电机驱动，大导程精密滚珠丝杠传动，直线导轨导向。Streamlineddesign,highspeed,highprecision,highrigidi
2、ty,CNCsheetmetalpressbrake.Electrohydraulicservosystem,fullloopcontrollingthesynchronizationoftheupperbeam.Hydrauliccompensationoncrowningofwork-tableanddeformationcompensationonthroat,ensuringgoodbendingstrengthandprecision.BackgaugedrivenbydigitalACservomotor,movedwithlong-stro
3、keballscrew,linearguidewayguiding.1控制技术折弯机同步采用全闭环电液伺服控制技术,滑块位置信号由两侧光栅尺反馈给数控系统，再由数控系统控制同步阀的开口大小,调节油缸进油量的多少,从而控制滑块(Y1、Y2)同步运行，始终保持对工作台的平行状态。数控系统根据折弯机板料的工艺状态，自动控制工作台的挠度补偿量，以达到工件全长角度均匀一致的效果。ControlTechnologyThesynchronizationofpressbrakeadoptthetechnologyoffullloopelectrohydraulicser
4、vocontrol,thepositioningsignaloftheupperbeamarefeedbackbyraster(light-ruler)toCNC挠度补偿systemandCNCsystemwillchecktheopening采用液压挠度补偿，可获得在工作sizeofsynchronizingvalves,adjustingtheinletoilamount,torealizethesynchronizing台全长上精度均匀一致的工件。液movementsoftheupperbeam(Y1,Y2)andkeep压挠度补偿由一组安装在下工
5、作台theworktablearealwaysinparallelsituation.内的油缸组成，可使工作台相对移Followingthesituationofsheetmetaltobebended,CNCsystemcontrolautomatically动，形成加凸的理想曲线，保证受theamountofthecrowningcompensationof力后与滑块的相对位置关系不变。worktabletorealizethatanglebeingbended补偿量由数控系统根据扳厚、模具ofworkpiececankeepsamealongthe
6、fullworkpiecelength.开口及材料特性自动计算确定。CrowningCompensationCrowningcompensationsystemonworktablecanmakeaworkpiecehavingasameprecisionfullalongthelengthoftheworktable.Acrowningcompensationsystemiscomposedofagroupcylindersinlineinworktable,whichcanformarelativemovementsofworktable,formi
7、ngacurveneededofaddingconvextoworktable,toensureunchangedtherelativepositiontotheupperbeamofworktableaftertheworktablebeingunderpressure.ThecrowningcompensationamountisautomaticallycalculatedoutbyCNCsystemaccordingtotheworkpiece'ssituation.2产品经折弯后的几种典型效果Typeicalaspectof-productaf
8、terbending工作台液压补偿系统工作台机械补偿系统工作台无补偿系统Hydr
