EFFICIENT PARAMETERIZATION OF THERMO-ELASTIC CORRECTION MODELS FOR EXTERNALLY DRIVEN SPINDLES

Abstract

In modern machine tools, spindle units significantly contribute to thermo-elastic tool center point (TCP) errors. Correction models to compensate axial spindle expansion are currently based on linear temperature models. Despite existing expert knowledge of spindle manufacturers, considerable modelling effort and empirical studies are required to parametrize appropriate models. As a result, the experimental effort is often reduced to a small number of load cases leading to limited accuracy over the entire range of applications. The goal of this work is to reduce the current experimental effort for parameterization of thermo-elastic correction models to a minimum by parametrizing delay elements with a thermo-elastic spindle simulation. In consequence, the required experimental effort can be substituted by bearing friction tests.

Recommended articles

ANALYSIS OF TEST PLASTIC SAMPLES PRINTED BY THE ADDITIVE METHOD FUSED FILAMENT FABRICATION

Josef Sedlak, Denisa Hrusecka, Eva Jurickova, Lucie Hrbackova, Lukas Spisak , Zdenek Joska
Keywords: 3D printing | PLA | filament production | coloring additive | tensile test | hardness test | surface texture

ANALYSIS OF THE ACCURACY OF VIRTUAL CLAMPING IN THE FIELD OF 3D SCANNING

Radomir Mendricky, Vladimir Kafka
Keywords: Virtual clamping | 3D digitisation | optical 3D scanner | 3D measurement | ATOS TripleScan | measuring jig | accuracy

ALTERNATIVE SOLUTION OF A MILLING HEAD HOUSING USING THE COMPUTER AIDED SYSTEMS

Vaclava Lasova, Petr Bernardin, Marcel Svagr, Jiri Kubicek
Keywords: Finite element model | stiffness analysis | bearing | housing | Spindle | Guayan reduction | Static condensation | topology optimization

MODEL OF SMART FACTORY USING THE PRINCIPLES OF INDUSTRY 4.0

Martin Sevic, Petr Keller
Keywords: industry 4.0 | smart factory | autonomous system | Internet of Things (IoT)