MA Li, XIE Wei, LIU Bo etc. Design of micro-positioning stage with flexure hinge[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 338-345
MA Li, XIE Wei, LIU Bo etc. Design of micro-positioning stage with flexure hinge[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 338-345 DOI: 10.3788/OPE.20142202.0338.
Design of micro-positioning stage with flexure hinge
A micro-positioning stage driven by a piezoelectric ceramic is developed
which adopts a bridge-type flexure hinge mechanism to realize displacement amplification and uses a parallel board hinge mechanism to guide. Based on elastic mechanics and material mechanics
the theoretical models of bridge-type flexure hinge and parallel board hinge mechanisms are established and the driving force
output displacement
stiffness and natural frequency of the stage are analyzed. The Matlab software is used to optimize the geometric parameters
including the length and thickness of the bridge-type flexure hinge
and those of the parallel board hinge
By which the optimized parameters are obtained. The micro-positioning stage after optimization is simulated by Finite Element Analysis(FEA) and a test system is constructed to measure the micro-positioning stage . The experimental results show that the largest error between theoretical analysis and experimental result is 9.8%
and the largest error between FEA and experimental result is 4.2%
which verifies the accuracy of theoretical analysis and FEA
and achieves the stage design objective in smaller volumes
higher amplification and large displacement outputs.
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references
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