Design and Control of the Active Compliant End-Effector

The design, construction end control of a wide bandwidth, active end-effector which can be attached to the end-point of a commercial robot manipulator is presented here. Electronic compliancy (Impedance Control) (11) has been developed on this device. The end-effector behaves dynamically as a two-dimensional, Remote Center Compliance [RCC]. The compliancy in this active end-effector is developed electronically and can therefore be modulated by an on-line computer. The device is a planar, five-bar linkage which is driven by two direct drive, brush-less DC motors. A two-dimensional, piezoelectric force cell on the end-point of the device, two 12-bit encoders, and two tachometers on the motors form the measurement system for this device. The high structural stiffness and light weight of the material used in the system allows for a wide bandwidth Impedance Control.

[1]  Ralph L. Hollis A planar XY robotic fine positioning device , 1985, Proceedings. 1985 IEEE International Conference on Robotics and Automation.

[2]  Thomas B. Sheridan,et al.  Robust compliant motion for manipulators, part II: Design method , 1986, IEEE J. Robotics Autom..

[3]  Jean-Jacques E. Slotine,et al.  Sliding controller design for non-linear systems , 1984 .

[4]  Jean-Jacques E. Slotine,et al.  Robot analysis and control , 1988, Autom..

[5]  Daniel E. Whitney,et al.  Force Feedback Control of Manipulator Fine Motions , 1977 .

[6]  John J. Craig,et al.  Hybrid position/force control of manipulators , 1981 .

[7]  Ieee Robotics,et al.  IEEE journal of robotics and automation , 1985 .

[8]  C. Desoer,et al.  Feedback Systems: Input-Output Properties , 1975 .

[9]  M. Vidyasagar,et al.  Roboust nonlinear control of robot manipulators , 1985, 1985 24th IEEE Conference on Decision and Control.

[10]  Homayoon Kazerooni,et al.  An Approach to Automated Deburring by Robot Manipulators , 1986 .

[11]  C. Samson Robust non linear control of robotic manipulators , 1983, The 22nd IEEE Conference on Decision and Control.

[12]  Jean-Jacques E. Slotine,et al.  The Robust Control of Robot Manipulators , 1985 .

[13]  Tsuneo Yoshikawa,et al.  Dynamic manipulability of robot manipulators , 1985, Proceedings. 1985 IEEE International Conference on Robotics and Automation.

[14]  Homayoon Kazerooni,et al.  Compliant motion control for robot manipulators , 1989 .

[15]  H. Kazerooni,et al.  Automated Deburring by Robot Manipulators , 1986, 1986 American Control Conference.

[16]  Samuel Hunt Drake,et al.  Using compliance in lieu of sensory feedback for automatic assembly. , 1978 .

[17]  T. B. Sheridan,et al.  Design Method for Robust Compliant Motion for Manipulators , 1986, 1986 American Control Conference.

[18]  Homayoon Kazerooni,et al.  Automated roboting deburring using electronic compliancy; Impedance control , 1987, Proceedings. 1987 IEEE International Conference on Robotics and Automation.

[19]  Homayoon Kazerooni,et al.  Direct-drive, active compliant end-effector (active RCC) , 1987, Proceedings. 1987 IEEE International Conference on Robotics and Automation.