论文部分内容阅读
分析和推导了用时间分割法实现直线和圆弧插补的一种高速、高精算法,并运用于32位机的数控车床系统中.该算法用迭代算法替代开方运算,取消了过象限判别,大大缩短了插补时间.文中给出了详细的误差分析,证明该算法的轨迹误差和算法误差小于一个当量,且舍入误差是不扩散的;提出了该算法的边界条件与加工工艺参数的关系.运用该算法编制的程序,整个插补任务(包括自动加减速、插补)在16MHz80386CPU下运行占用机时小于1ms.
This paper analyzes and deduces a high-speed and high-precision algorithm of time-splitting method for linear and circular interpolation, and applies it to the numerical control lathe system of 32-bit machine.The algorithm replaces the square root by iterative algorithm, The error of the algorithm is less than one equivalent, and the rounding error is non-proliferation. The boundary conditions and processing technology of the algorithm are proposed. Parameters of the relationship between the use of the algorithm prepared by the program, the entire interpolation tasks (including automatic acceleration and deceleration, interpolation) occupy the machine under 16MHz80386CPU less than 1ms.