1. 9TH IWPMA April 22-25, 2011 JAPAN
Design and Experimental Research of Advanced Inchworm
Piezoelectric Linear Motor
Precision driving laboratory, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R.China
Weiqing HUANG
1. Motivation 3. Structure
Add two assistant clamps to Connecting spring
Increase the holding force
Decrease the manufacture cost
Assistant clamp Preload spring
Assistant Major Major Assistant
Pusher
clamp Clamp Clamp clamp
11 12 3 21 11
Connecting spring Major Clamp
Sketch figure of motor
2. Principle Structure of stator and Prototype of motor
4. Results
Displacement/mm
Sampling Interval/200μs
Pace: 0.4 μm speed: 8.4 μm /s
5. Conclusion
High holding force
Low assembling requirements
Potential to achieve
high thrust, Long stroke
s
One step in one period High resolution