Fast component placement with optimized long-stroke passive gravity compensation integrated in a cylindrical/tubular PM actuator

J.J.H. Paulides, L. Encica, K.J. Meessen, E.A. Lomonova

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Abstract

Applications such as vibration isolation, gravity compensation, pick-and-place machines, etc., would benefit from (long-stroke) cylindrical/tubular permanent magnet (PM) actuators with integrated passive gravity compensation to minimize the power consumption. As an example, in component placing (pick-and-place) machines on printed circuit boards, passive devices allow the powerless counteraction of translator including nozzles or tooling bits. In these applications, an increasing demand is arising for high-speed actuation with high precision and bandwidth capability mainly due to the placement head being at the foundation of the motion chain, hence, a large mass of this device will result in high force/power requirements for the driving mechanism (i.e. an H-bridge with three linear permanent magnet motors placed in an H-configuration). This paper investigates a tubular actuator topology combined with passive gravity compensation. These two functionalities are separately introduced, where the combination is verified using comprehensive three dimensional (3D) finite element analyses.
Original languageEnglish
Pages (from-to)275-282
JournalJournal of International Conference on Electrical Machines and Systems
Volume2
Issue number3
DOIs
Publication statusPublished - 2013

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