S1402-1-5 Development of a collision prevention system for machine tools (2nd. report) : A simulator collaboration type collision prevention system for machine tools
Conventional collision prevention systems for machine tools such as off-line machining simulators and collision prevention functions on NC controller are based on simulation using 3D models of work-pieces and jigs that are made in advance. If the setting up of work-pieces and jigs at the factory differs from the simulation models, then collision accidents are unavoidable. Therefore, a collision prevention method by simulation based on actual conditions from NC controllers and measurement data of work-pieces by 3D laser scanner after the setting up of the machine tool is proposed. Moreover, a simulator collaboration type collision prevention system for machine tools based on the proposed method has been developed. This paper presents a discussion of the system concept, development of a prototype system, and evaluation of the system.