Control system design and analysis of FRP pipe thread-grinding machine

Authors:
Jiazhong Xu;Ming Qiao;Xinying Wang
Affiliations:
College of Automation, Harbin University of Science and Technology, Harbin 150080, China.;College of Automation, Harbin University of Science and Technology, Harbin 150080, China.;College of Automation, Harbin University of Science and Technology, Harbin 150080, China
Venue:
International Journal of Computer Applications in Technology
Year:
2010

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A survey of models, analysis tools and compensation methods for the control of machines with friction

Automatica (Journal of IFAC)

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Abstract

The male thread manufacturing technology is a key factor that influences the production efficiency and the connection performance of large diameter Fibre Reinforced Plastic (FRP) pipes. The numerical control system of an FRP pipe thread-grinding machine based on Programmable Multi-Axis Controller (PMAC) and industry computer is described. The mechanical structure, the thread-processing technology and the development of the system are introduced. To eliminate the low-velocity creeping phenomenon, the friction dynamics of the radial servo control system is researched. Three key parameters that affect low-velocity motion performance are analysed, and some methods that improve the motion performance are put forward.