立式车床高精度、高刚度进给式横梁设计  

Design of high precision and high rigidity feed beam for vertical lathe

作　　者：焦建华 赵康原 马洪亮 JIAO Jianhua;ZHAO Kangyuan;MA Hongliang(Qiqihar Heavy CNC Equipment Corporation Limited,Qiqihar 161005,CHN)

机构地区：[1]齐重数控装备股份有限公司,黑龙江齐齐哈尔161005

出　　处：《制造技术与机床》2018年第9期92-93,共2页Manufacturing Technology & Machine Tool

基　　金：国家科技重大专项课题(2010ZX04001-031)

摘　　要：立式车床横梁在立柱导轨上的运动(W轴)参与进给切削时,要求W轴具有高精度、高刚度的良好特性。高档立式铣车复合加工中心横梁升降导轨选用闭式静压导轨,横梁结构设计采用背部突出式结构,横梁加工时应用反变形加工技术,W轴进给采用全闭环控制,满足了横梁参与进给加工的高精度、高刚度要求,使W轴定位精度达到0.021 mm、重复定位精度达到0.01 mm,优于国家标准规定的进给轴定位精度0.03 mm、重复定位精度0.015 mm的规定。When the movement of vertical lathe beam on column vertical guide rail(W-axis)is engaged in cutting,the W-axis needs good properties of high precision and high rigidity.Closed hydrostatic guideway,back projection structure,anti-deformation processing technology are applied on the beam of high grade vertical type turning-milling machining center.The W-axis feed adopts full closed loop control.The requirements of high precision,high rigidity of feed beam are satisfied.The W-axis positioning accuracy is 0.021 mm,repetitive positioning accuracy is 0.01 mm,better than the national standard of feed shaft positioning accuracy of 0.03 mm,repetitive positioning accuracy of 0.015 mm.

关 键 词：高精度 高刚度 进给式横梁 静压导轨 背部突出式横梁 反变形加工技术 

分 类 号：TH122[机械工程—机械设计及理论]