【摘要】 文章基于多体系统运动学理论 ,根据数控机床实现精加工的必要充分条件推导出刀具路线、数控指令和刀具轨迹之间的关系 ,从逆运动学理论出发 ,提出了新的误差补偿思路。并针对北人集团的德国S₁5 0 0三轴立式龙门加工中心的生产实际 ,开展了大量的误差补偿实验。结果表明 ,运用作者提出的理论和方法 ,可使该机床的加工精度提高 60 %以上。更多还原

【Abstract】 s:Based on MBS method and the necessary condition of precision processing, the relationship among the cutter line, the actual cutter track and the NC command has been derived. A new concept of error compensation is developed on the basis of reverse kinematics theory. A lot of error compensation experiments have been done on the Beiren group’s S-1500 three-axis vertical dragon machining center. The experiment results show that the machining accuracy of NC machine can be improved 60% with compensation by the theory and method in the paper.更多还原