The New Method for CNC Trajectory Machining Motion Planning Based on Reference Time

摘要

In order to make motion planning fitting practice , many characteristic of CNC trajectory motion are discussed , such as the geometric function , the motion and the time. It is found that the relation between orbit function and motional parameter , so the differential equation about the trajectory motion be set-up by the goal of trajectory motion . The actual motion process is defined as reference time to link planning and practice. Present a new movement planning method based on self-defining time. At rest slate, the differential simultaneous equation can be calculated according geometric characteristic analysis, it can be get that simple function consisted of coordinate and reference time variants. At motive state, dynamic parameter can be worked out according practical value of reference time, It is proved by experiment and simulation that it is a good way to control geometry and motion comprehensively, to reduce computation times and to increase the ability of environmental adaptation for path planning.