跟随误差报警阈值的动态计算

利用正交实验方法,对影响跟随误差大小的因素进行优先排序,找出关键影响因素;通过实验,分析并得出关键影响因素与跟随误差之间的关系,利用此关系提出一种跟随误差报警阈值的动态计算方法,能根据进给速度实时的计算跟随误差报警阈值。与国产数控系统中传统的以静态参数设置跟随误差报警阈值相比,该方法能减少误报次数,保证数控加工精度。

Dynamic Calculation for Tracking Error Alarm Threshold

Prioritization the factors was made which affected the value of tracking error using the orthogonal test, and the key fac-tors were found.The relationship between key factors and tracking error was analyzed through test, and a dynamic calculation method for tracking error alarm threshold was raised using the relationship, which could calculate the alarm threshold according to the feed speed in real-time.As compared with the traditional method which used static parameters to set tracking error alarm threshold in domes-tic numercial control ( NC) system, it can reduce the number of false alarm and assure the NC machining accuracy.