シーソー作業ロボットを使った安全作業システム

抄録

Japanese safety law requires robot safety precautions to be taken in such way that the gate to the robot operation zone cannot be opened unless the plug is removed and the removal of the plug cuts power to the robot. However, in reality, this safety measure cannot be employed if high operation efficiency is required. Safety systems for robots are considered here by taking an example of the robotic seesaw working system, in which the operator works with the robot by moving his working location to another in the robot zone. In this paper, to secure safety against the risk of collision between the robot and human operator involved in the conventional seesaw working systems, firstly, the logical construction for the safety operation system is presented, considering coordination with robot. Secondly, the fail-safe interlocking system is proposed for robotic seesaw operation, which is expected to secure safety and improve productivity. Lastly indicated are the methods for the realization of sensors for the fail-safe interloking system.