Development of the Robot's Gripper Control System using DSP

DSP 를 이용한 로봇의 그리퍼 제어장치의 개발

  • 김갑순 (경상대학교 제어계측공학과)
  • Published : 2006.05.01

Abstract

This paper describes the design and implementation of a robot's gripper control system. In order to safely grasp an unknown object using the robot's gripper, the gripper should detect the force of gripping direction and the force of gravity direction, and should perform the force control using the detected forces and the robot's gripper control system. In this paper, the robot's gripper control system is designed and manufactured using DSP(Digital Signal Processor), and the gripper is composed of two 6-axis force/moment sensors which measures the Fx force(force of x-direction), Fy force, Fz force, and the Mx moment(moment of x-direction), My moment, Mz moment at the same time. The response characteristic test of the system is performed to determine the proportional gain Kp and the integral gain Ki of PI controller. As a result, it is shown that the developed robot's gripper control system grasps an unknown object safely.

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References

  1. Ceccarelli, M., 'Grasp Forces in Two-finger: Modeling and Measuring,' Proceedings of 5th International Workshop on Robotics in Alpe Adria-Danbube Region, pp. 321-326, 1996
  2. Castro, D., 'Tactile Force Control Feedback in Parallel Jaw Gripper,' Proceedings of the IEEE International Symposium on Industrial Electronics, Vol. 3, No.3, pp. 884-888, 1997 https://doi.org/10.1109/ISIE.1997.648836
  3. Nkgatho, S. T., 'Intelligent Gripper using Low Cost Industrial,' Proceedings of the IEEE International Symposium on Industrial Electronics, Vol. 2, No.2, pp. 415-419, 1998 https://doi.org/10.1109/ISIE.1998.711558
  4. Carlos, M. V., 'BRF Competitive Hopfield Neural Networks for Objects Grasping,' Proceedings of the Fourth International Conference on Motion and Vibration Control, Vol. 3, No.3, pp. 1171-1176,1998
  5. Kim, G S., 'Development of a 6-axis robot's finger force/moment sensor for stably grasping an unknown object,' KSPE, Vol. 20, No.7, pp. 105-113,2003