A workcell calibration method for enhancing accuracy in robot machining of aerospace parts

作者：Leali Francesco; Vergnano Alberto; Pini Fabio; Pellicciari Marcello^*; Berselli Giovanni

来源：International Journal of Advanced Manufacturing Technology, 2016, 85(1-4): 47-55.

DOI：10.1007/s00170-014-6025-y

• Workcell calibration
• Industrial robotics
• Integrated design
• Aerospace industry

Industrial robotics provides high flexibility and reconfigurability supported by a user-friendly programming, but still lacks in accuracy. An effective workcell calibration reduces errors in robot manufacturing and enables robot machining applications. A novel workcell calibration method is embedded in an integrated design framework for an in-depth exploitation of CAD-based simulations and offline programming. The method is composed of two steps: first calibration of the workpiece-independent equipment in the workcell layout and final automated online calibration of workpiece-dependent equipment. The method is finally applied to a changeable robotic workcell for finishing aluminium cast housings for aerospace gear transmissions characterised by complex shapes and by close dimensional and geometrical specifications. Experimental results prove the method effectiveness in enhancing accuracy in robot machining.

• 出版日期2016-7