Corner Constraint Conditions Based on Machining Dynamics in High Speed and High Precision Continuous Micro-Line Interpolation

Feedrate planning of continuous micro-line’s start and end points are discussed,and the constraining conditions,including the machine’s acceleration and deceleration capability,allowable error of corner machining,maximum acceleration and dynamical behavior of the machine,are established.Simulation tests show that the machine’s acceleration and deceleration capability is the key factor to the NC machining efficiency and precision when the turning angle between micro-lines is small,and the error of corner machining is the predominant factor when the turning angle increases to certain degree,and the machine’s maximum driving moment becomes the decisive factor when the turning angle becomes big.