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Frontiers of Mechanical Engineering

, Volume 12, Issue 2, pp 265–278 | Cite as

Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane payload capacity

  • Hua Liu
  • Xin Xie
  • Ruoyu Tan
  • Lianchao Zhang
  • Dapeng Fan
Research Article
  • 52 Downloads

Abstract

Most of the XY positioning stages proposed in previous studies are mainly designed by considering only a single performance indicator of the stage. As a result, the other performance indicators are relatively weak. In this study, a 2-degree-of-freedom linear compliant positioning stage (LCPS) is developed by mechatronic design to balance the interacting performance indicators and realize the desired positioning stage. The key parameters and the coupling of the structure and actuators are completely considered in the design. The LCPS consists of four voice coil motors (VCMs), which are conformally designed for compactness, and six spatial leaf spring parallelograms. These parallelograms are serially connected for a large travel range and a high out-of-plane payload capacity. The mechatronic model is established by matrix structural analysis for structural modeling and by Kirchhoff’s law for the VCMs. The sensitivities of the key parameters are analyzed, and the design parameters are subsequently determined. The analytical model of the stage is confirmed by experiments. The stage has a travel range of 4.4 mm × 7.0 mm and a 0.16% area ratio of workspace to the outer dimension of the stage. The values of these performance indicators are greater than those of any existing stage reported in the literature. The closed-loop bandwidth is 9.5 Hz in both working directions. The stage can track a circular trajectory with a radius of 1.5 mm, with 40 mm error and a resolution of lower than 3 mm. The results of payload tests indicate that the stage has at least 20 kg outof- plane payload capacity.

Keywords

mechatronic design linear compliant positioning stage large travel range high out-of-plane payload capacity spatial parallelogram voice coil motor sensitivity analysis 

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Notes

Acknowledgements

This research was supported by the National Natural Science Foundation of China (Grant No. 51135009). The authors would like to thank the reviewers for their excellent comments and suggestions.

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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Hua Liu
    • 1
  • Xin Xie
    • 1
  • Ruoyu Tan
    • 1
  • Lianchao Zhang
    • 1
  • Dapeng Fan
    • 1
  1. 1.College of Mechatronic Engineering and AutomationNational University of Defense TechnologyChangshaChina

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