Clamping system based on magnetic powder
KUAI Xue-jiao，ZHOU Yan-fei
（College of Mechanical and Electrical Engineering，Nanjin University of Aeronautics and Astronautics，
Nanjing 210016，China）
Abstract：Aiming at improving machining accuracy of the monolithic components，a new design of clamping system based on magneticpowder was presented. The theory of this clamping system was produced and turned out to be more reliable compared to magnechuck.Magnetic field around a workpiece for both clamping systems was 2D modeled through the finite element system. The vertical/horizontalclamping force with the same magnetizer were determined by experiments and the maximum deformation of the part was analyzed through
finite element system. The results indicate that workpiece in clamping system based on magnetic powder can be clamped reliably and itsmaximum deformation is less than that in magnechuck. Compared to magnechuck，it is a more reliable clamping system and more suitablefor the industrial automation.
Key words：magnetic powder；magnechuck；magnetic field；clamping force；maximum deformation