A mechanical hand for prosthetic applications: multibody model and contact simulation

The dynamical behavior study of a mechanical hand is a fundamental issue to verify its possible application as a prosthetic hand. Simulation approaches are widely used to predict the dynamics of mechanical components. In the context of mechanical hands, the multibody model represents a useful tool to predict the finger dynamics and therefore the phalanx rotations before the prototyping. The phalanx rotations drive the finger closure sequence and, consequently, influence the grasping ability of the whole mechanical hand. This article discusses the main theoretical aspects dealing with the design of a mechanical hand for prosthetic application and the solutions offered by multiple simulation approaches.

Integrated System of Mixed Virtual Reality Based on Data Glove CyberGlove II and Robotic Arm MechaTE Robot

Proposed paper describes development of CyberGlove II - MechaTE low-cost robotic hand interface intended for future use in virtual and mixed reality robot programming. The main goal is to explore possibilities and gain programing experience in controlling mechanical hands by means of data gloves and its interconnection to virtual reality modeling software. First part of paper describes recent progress in using virtual reality for purposes of intuitive robot programming; second part includes an overview of recent development of mechanical hands construction, as well as currently available data gloves. Last part provides details about CyberGlove – MechaTE interface and its potential for methods of intuitive robot programming in virtual or mixed reality environments.

Design Scheme for New Workover Mechanical System

In workover operation, conventional way makes the process complex, labor intensity high and operating environment hostile. For solving the problem, the new scheme for workover mechanical system was put forward. Hanger was removed in the system. We can execute tube movement with macro/micro mechanical arm and achieve sending down and lifting pipe with supporting mechanical hands. It is designed for the first time in china.

Remote Control Deep Well Rescue Machine

In real life, deep well trapping accidents of people frequently occur，but no appropriate and effective rescue equipment is available. After site investigation and analysis, we hereby design a sort of remote control deep well rescue machine, in which the components are free to remove，the length can be freely adjusted according to the depth of wells. The bottom of the device is provided with mechanical hands and chassis with airbags. By controlling the robot with remote control technology, the device solves the problem that the rescue workers can not perform direct rescue on the victims due to the small width of the well mouth. A camera is installed at the lower part of the device, which enables the rescuers to accurately observe the underground situation, thereby solving the problem of being unable to accurately locate the trapped people with human eyes due to the smallness of the well mouth and insufficient light.