摘要
根据旋压件等壁厚的要求,通过旋轮位置控制进行非圆截面零件旋压成形。运用MSC.ADAMS建立三面圆弧型等距截面零件运动模型,获得旋轮位移仿真数据,同时结合零件的几何结构,分析得到工作台两轴(x、z)的运动函数,拟合直线电机轴(S)运动仿真数据得到拟合函数,三轴联动共同合成旋压加工所需的旋轮运动轨迹。分析S轴拟合函数的误差分布情况,并加以补偿,通过matlab寻找拟合函数最优系数解,得到精度较高的运动轨迹函数。通过验证表明,拟合函数平均绝对误差随着偏距(2e)的减少而递减,当2e<7mm时,即发生圆直径2ρ<52.25mm时,平均绝对误差小于0.05。
Position control of the roller has been adopted in spinning the hollow part with non-circular cross section to meet the requirement of the constant wall thickness.The kinematical model of the hollow part with isometric cross section of three arcs has been established by MSC.ADAMS,and the roller displacement simulation data have been obtained.The movement locus functions of working-table(x and z axes)have been deduced by analyzing the geometric structure of this kind of hollow part.The fitting function has b...
出处
《锻压装备与制造技术》
2008年第6期77-82,共6页
China Metalforming Equipment & Manufacturing Technology
基金
国家自然科学基金资助项目(50775076)
