Development of 3 DOF micro finger

A 3 DOF micro finger, that has pure translational motion, is proposed. The finger will be applied in the two finger micro manipulation in order to manipulate micrometer size objects dexterously. The possible configurations are considered based on the group theory. Then, the optimal configuration is proposed by taking simple machining of joint structures into account. Kinematics analysis is made in order to describe the relation between end effector and actuator displacements. The design parameters are examined by evaluating the force capability of the actuator and the work space volume. Basic experiments are made by a prototype finger module that show excellent micro motion capability.

[1]  Toshio Fukuda,et al.  New mechanism and dynamic control method of microelectrostatic actuator with three degrees of freedom , 1991, Proceedings. 1991 IEEE International Conference on Robotics and Automation.

[2]  Fumihito Arai,et al.  Design and dextrous control of micromanipulator with 6 D.O.F , 1991, Fifth International Conference on Advanced Robotics 'Robots in Unstructured Environments.

[3]  I.W. Hunter,et al.  Manipulation and dynamic mechanical testing of microscopic objects using a tele-micro-robot system , 1989, IEEE Control Systems Magazine.

[4]  D. Stewart,et al.  A Platform with Six Degrees of Freedom , 1965 .

[5]  Koji Ikuta,et al.  Shape memory alloy servo actuator system with electric resistance feedback and application for active endoscope , 1988, Proceedings. 1988 IEEE International Conference on Robotics and Automation.

[6]  Jacques M. Hervé,et al.  Group Mathematics and Parallel Link Mechanisms , 1993, Robotics, Mechatronics and Manufacturing Systems.

[7]  J. Paros.  How to design flexure hinges , 1965 .

[8]  K. Sugimoto,et al.  Synthesis of Parallel Micromanipulators , 1989 .

[9]  I. Shimoyama,et al.  Creation of an insect-based microrobot with an external skeleton and elastic joints , 1992, [1992] Proceedings IEEE Micro Electro Mechanical Systems.

[10]  R. Larsonneur,et al.  Calibration and basic motion of a micro hand module , 1993, Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics.