Research on Interpolation Algorithm of Three-Links Hybrid Machine Tool

Li Da Zhu; Gang Li; Wan Shan Wang

doi:10.4028/www.scientific.net/AMR.97-101.3124

Paper Titles

Generation Mechanism of Micro/Nano Machined Surfaces Based on Molecular Dynamics
p.3104

A Model of Cutting Forces for Ball End Mill in High Speed Machining
p.3108

Simulation and Experimental Investigation of Stiffness of the High Acceleration Linear Feed Drives
p.3113

Numerical Simulation of ANSYS-LS/DYNA Induced by Double-Edge Ball Tooth Hob Cutter
p.3120

Research on Interpolation Algorithm of Three-Links Hybrid Machine Tool
p.3124

Transmission Ratio Analysis and Controllable Tooth Profile Modeling for the Nutation Drive with Double Circular-Arc External and Internal Spiral Bevel Gears
p.3128

A Method for Performance Evaluation of Transfer Line with Unreliable Machines and Finite Transfer-Delay Buffers
p.3135

Closed-Loop Identification and Composed Controller Design for Precise Machining
p.3139

The Process Planning Simulation of Multi-Axis Numerical Control Based on Virtual Reality
p.3146

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Research on Interpolation Algorithm of Three-Links Hybrid Machine Tool

Abstract:

Aiming at the characteristics of structure and control of three-links hybrid machine tool, the interpolation strategy of CNC system is proposed in this paper. Coarse interpolation in workspace and fine interpolation in joint-space are expatiated. The trajectory points are transformed into discrete points by coarse interpolation mapping from workspace to joint-space. At the same time, the plans of trajectory, velocity and acceleration of discrete points in workspace are got, and then joint discrete points are realized by joint fitting smooth function. In order to meet the design demand and enhance effectively interpolation precision, the five polynomial interpolations will be thinning discrete points, and geometric locus will be very smooth.