A Real-Time Tool Positioning Sensor for Machine-Tools

Sensors

Antonio Ramon Jimenez Ruiz²  Jorge Guevara Rosas²  Fernando Seco Granja²  Jose Carlos Prieto Honorato²  Jose Juan Esteve Taboada¹  Vicente Mico Serrano¹ 

[1] Instituto Tecnológicó de Óptica, Color e Imagen - AIDO. C/ Nicolás Copérnico 7-13, Apdo. 139, 46980 Paterna (Valencia), Spain; E-Mails:;Instituto de Automática Industrial, Consejo Superior de Investigaciones Científicas, Ctra. Campo Real km 0.2, 28500 Arganda del Rey (Madrid), Spain; E-Mails:

关键词: tool localization;    laser-tracking;    machine-tool;    oscillation and deformation measurement;    interferometry;   

DOI  :  10.3390/s91007622

来源: mdpi

【 摘 要 】

In machining, natural oscillations, and elastic, gravitational or temperature deformations, are still a problem to guarantee the quality of fabricated parts. In this paper we present an optical measurement system designed to track and localize in 3D a reference retro-reflector close to the machine-tool's drill. The complete system and its components are described in detail. Several tests, some static (including impacts and rotations) and others dynamic (by executing linear and circular trajectories), were performed on two different machine tools. It has been integrated, for the first time, a laser tracking system into the position control loop of a machine-tool. Results indicate that oscillations and deformations close to the tool can be estimated with micrometric resolution and a bandwidth from 0 to more than 100 Hz. Therefore this sensor opens the possibility for on-line compensation of oscillations and deformations.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel,