Title :
Study on Interpolation Principle and Method for 1PS+4TPS Type Hybrid Machine Tool
Author :
Fan, Shouwen ; Wang, Xiaobing ; Shi, Mingquan ; Huang, Hongzhong
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
This paper presents a novel hybrid machine tool (HMT) based on a 4-dof 1PS+4TPS type spatial hybrid mechanism and a x-y worktable. This type HMT enjoys some advantages relative to its conventional counterparts: large workspace, good dexterity, etc. Closed-form solutions for both the inverse displacement model and inverse kinematic model are derived. A computerized numerical control (CNC) system scheme for motion control of HMTs is proposed focusing on motion control characteristics of HMTs and based on research fruits of traditional numerical control machine tool. Real-time five-axis interpolator, which is composed of cutter path calculation, inverse displacement analysis model, inverse kinematic analysis model and PVT fine interpolation mode, are constructed. Cutter path interval calculation and interpolate error analysis are also discussed, Feasibility and efficiency of above real-time interpolator are confirmed by numerical examples.
Keywords :
computerised numerical control; cutting tools; error analysis; interpolation; inverse problems; kinematics; machine tools; motion control; production engineering computing; 1PS+4TPS type spatial hybrid mechanism; CNC system; computerized numerical control system; hybrid machine tool; interpolate error analysis; inverse displacement analysis model; inverse kinematic model; motion control; path calculation; real-time five-axis interpolator; Computer numerical control; Error analysis; Interpolation; Inverse problems; Kinematics; Leg; Machine tools; Machining; Mechatronics; Motion control;
Conference_Titel :
Natural Computation, 2007. ICNC 2007. Third International Conference on
Conference_Location :
Haikou
Print_ISBN :
978-0-7695-2875-5
DOI :
10.1109/ICNC.2007.691
