往复式单线切割机的张力波动研究.pdf

2014 年10 月第42 卷第19 期机床与液压MACHINE TOOL & HYDRAULICSOct 2014Vol 42 No 19DOI:10. 3969 / j issn 1001 - 3881 2014 19 034收稿日期:2013 - 09 - 10基金项目:“高档数控机床与基础制造装备”科技重大专项(2013ZX04006011)作者简介:张国庆(1986—),男,硕士研究生,主要研究方向为线切割精密加工关键技术。E - mail:cims@ 。通信作者:于贺春,E - mail:yuhechun1106@ 。往复式单线切割机的张力波动研究张国庆,于贺春,赵则祥,赵惠英(中原工学院机电学院,河南郑州450007)摘要:针对往复式单线切割机在工作中的张力波动问题,提出并分析了主动轮转动加速度对张力波动的影响。建立走丝系统运动的数学模型,揭示了主动轮线加速度与张力的关系。建立Matlab/ Simulink 的动态仿真模型,仿真了在3 种不同的换向方法的作用下张力的波动情况,仿真结果表明张紧力的波动与主动轮线加速度有直接关系。对比3 种仿真结果可知,双余弦单波换向法的张力波动最小。关键词:单线切割机;线加速度;张力波动中图分类号:TH113 文献标识码:A 文章编号:1001 - 3881 (2014)19 - 127 - 4Research on Tension Fluctuation of Reciprocating Monowire SawZHANG Guoqing,YU Hechun,ZHAO Zexiang,ZHAO Huiying(School of Mechatronics Engineering,Zhongyuan University of Technology,Zhengzhou Henan 450007,China) Abstract:Aimed at the problem of tension fluctuation of reciprocating monowire saw in running,the influence of leading wirespools rotational acceleration on wire tension was proposed and analyzed. The mathematical model of wire winding system was built,and the relationship between spools rotational acceleration and tension fluctuation were revealed. A dynamic simulation model was builtwith the Matlab/ Simulink,and three kinds of reversing method were used to explore the tension fluctuation through simulation. Thesimulation results show that the influence rule of tension fluctuation and spools