超重型数控落地铣镗床滑枕挠曲变形补偿研究  

Research on Deflection Compensation of Ram of Super-heavy-duty CNC Floor Boring and Milling Machine

作　　者：吴凤和[1,2] 王少伟[1] 杨育林[1] 王跃宏 

机构地区：[1]燕山大学,秦皇岛066004 [2]齐齐哈尔二机床(集团)有限公司,齐齐哈尔161005

出　　处：《中国机械工程》2010年第20期2416-2420,共5页China Mechanical Engineering

基　　金：国家科技重大专项(2009ZX04002-061)

摘　　要：针对超重型数控落地铣镗床大行程滑枕的变形补偿难题,提出了一种理论分析、数值计算与实验研究相结合的方法,利用有限元分析方法找出滑枕挠曲变形分布规律和变形与滑枕行程间的关系,通过理论分析确定拉杆补偿力的初算值,结合有限元分析方法得到了补偿力与滑枕行程关系曲线。理论与实验结果对比表明,该方法较准确地预测了超重型数控落地铣镗床滑枕挠曲变形分布情况,满足了机床滑枕挠曲变形的补偿要求。A combined method of theoretical analysis, numerical calculation and experimental technique was proposed to solve the problem of deflection compensation of long stroke ram of superheavy-duty CNC floor boring and milling machine. The laws of deflection of ram, and the relationship curve between deflection and stroke of ram were obtained through finite element analysis methodology. The preliminary calculation formula of compensation force was derived through theoretical analysis, and the relationship curve between compensation force and stroke of ram was obtained through finite element analysis methodology. Theoretical and experimental results show that, the method given herein can exactly forecast the distribution of ram＇s deflection, and it is feasible for deflection compensation of ram of super-heavy-duty CNC floor boring and milling machine.

关 键 词：落地铣镗床 滑枕 挠曲变形 补偿 

分 类 号：TG535[金属学及工艺—金属切削加工及机床]