Delcam holds first meeting of €8 million project on machining with robots

As the co-ordinating partner, Delcam is combining its experience and expertise in manufacturing with thirteen other technical partners from eight countries across Europe to develop plug-and-produce COmponents and METhods for adaptive control of industrial robots for high-end machining that will enable cost effective, flexible and reliable manufacturing solutions. The other partners include Nikon (Belgium), ARTIS (Germany), AMRC (UK), TEKS (France), Fraunhofer IPA (Germany), BTU (Germany), Lund University (Sweden), Gizelis (Greece), University of Patras (Greece), N Bazigos (Greece), DemoCenter Sipe (Italy), SIR (Italy) and Nisaform (Czech Republic). The 30 month project aims to overcome the challenges facing european manufacturing industries by developing innovative machining systems that are flexible, reliable and predictable, with an average 30 per cent cost-efficiency saving in comparison to machine tools. From a conceptual point of view, industrial robot technology could provide an excellent base for machining, being both flexible (due to their lay-out) and cost efficient (robots cost two to five times less than machine tools). However, industrial robots lack absolute positioning accuracy, are unable to compensate for deviations caused by process forces, and lack reliable programming and simulation tools to ensure right-first-time machining. These three critical limitations currently prevent the use of robots in most machining applications. Innovations to overcome these limitations proposed by the COMET consortium include an adaptive toolpath-generation system for robots based on kinematic and dynamic models, an adaptive tracking system and a high dynamic compensation mechanism. These innovations are said to improve robot accuracy, reduce setup times by as much as 50 per cent, and enable precise first-time programming and simulation with real-time correction of the robot path.