摘要
针对YDE3120CNC干切滚齿机床,运用热传导形成温度梯度原理、金属材料热膨胀原理、材料力学中梁的伸长和弯曲变形理论基础,分析了该机床热变形误差,并提出了一种滚刀与工件主轴相对位移热变形误差数学模型。在此基础上研制了一套用于干切滚齿机热变形误差补偿系统,利用该系统从间接和直接的角度测量出滚刀与工件主轴相对位移,然后进行热变形误差补偿实验。通过该实验,验证了该机床热变形误差数学模型的正确性及可靠性,为干切滚齿机床在线热变形误差检测及补偿打下了基础。
According to YDE3120CNC dry-cutting hobbing machine bed,based on the thermal conduction principle of temperature gradient,the thermal expansion principle of metal materials,the beam elongation and bending deformation theory foundation of material mechanics,the thermal deformation error of the machine tool is analyzed by the theory.This paper proposed a mathematical model of thermal deformation error at the relative position of hob and workpiece spindle,on this basis,developed a set of thermal deformation error compensation system,and the compensation system is used to measure the relative position of hob and workpiece spindle from indirect and direct angle,then carried out the thermal deformation error compensation experiment.Through the experiment,the correctness and reliability of the mathematical model of the thermal deformation error of the machine tool are verified,which lays a foundation for the on-line thermal deformation error detection and compensation of the dry-cutting hobbing machine tool.
作者
陈世平
刘状
闫文
罗小
CHEN Shiping;LIU Zhuang;YAN Wen;LUO Xiao(School of Mechanical Engineering,Chongqing University of Technology,Chongqing 400054,CHN)
出处
《制造技术与机床》
北大核心
2019年第11期119-124,共6页
Manufacturing Technology & Machine Tool
基金
重庆市自然科学基金资助项目(cstc2018jcyjAX0505)
关键词
干切滚齿机
热变形
数学模型
补偿系统
dry-cutting hobbing machine
thermal deformation
mathematical model
compensation system
