为解决五轴加工中刀具矢量变化不均匀引起减速和加速的反复发生，带来加工形状变得粗糙和加工时间变长的问题，提出一种刀具矢量压缩平滑定向插补算法。通过对指令程序进行压缩处理，可以去除刀位点和刀具矢量变化小的指令，对刀具矢量平滑处理，可以使得刀具矢量的变化与线性轴的变化一致，定向插补是对优化后的指令刀位点数据和刀具方向进行插补计算，以实现高速加工。通过仿真实验验证了该算法的有效性和可行性。%To solve problems that the machined shape becomes rough and the machining time becomes long in five-axis machining posed by deceleration and acceleration are repeated due to uneven change of the tool posture vector. A compression smooth orientation interpolation of tool posture vector was developed. A pro-gram command to a block having small changes in a tool center point position and a tool posture vector was removed by compression process. Tool posture vector command was smoothed to attain a change of tool posture vector in proportion with that of the linear axis command. The orientation interpolation is performed on the optimal commands processed by compression smooth to achieve a high speed machining. A simula-tion test was performed to verify the effectiveness and feasibility of this algorithm.
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