Takashi Harada
ABSTRACT
A novel differential screw drive mechanisms for 2-dof (one-rotational and one-translational) drive system is proposed in this paper. The proposed screw is named as Gaudi-inspired screw, because the shape of the screw is similar to the double helix columns by Antoni Gaudi. Kinematics, geometry, and prototyping the Gaudi-inspired screw is introduced in this paper. Firstly, kinematics about differential screw drive mechanism, including the Gaudi-inspired screw, is introduced. The Gaudi-inspired screw is overlapped helix of the right and left helix of a square. Geometrical characteristics and shapes of the cross sections of the screw are discussed in detail. Plans for making the screw and the nuts by 3D printing, cutting, form grinding, wire-cut EDM and die-sink EDM are introduced. The Gaudi-inspired screw and the nuts were prototyped by 3D printing and by cutting.
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- T. Harada, T. Friedlaender and J. Angeles, The Development of an Innovative Two-DOF Cylindrical Drive: Design, in Proc. of IEEE International Conference on Robotics and Automation, pp. 6338--6344, (2014)Google Scholar
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- Mniature Ball Screw with Ball Spline, KSS Co., Ltd., http://www.kssballscrew.com/us/product/product-09.htmlGoogle Scholar
- Ball Screw Spline, Nippon Bearing Co., Ltd., https://www.nbcorporation.com/product/new/spbr/spbr.htmlGoogle Scholar
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