Abstract
This paper deals with a design method of a tool database to be used in tool use planning. To increase the efficiency of the tool use in a flexible automated manufacturing system, it is necessary for the tool database to support information used in the whole field of the tool life cycle and in the tool use. A management system sharing with some tools in some machine tools and using them, can make the best use of tool capacity. For the realization of this system, the tool use needs information to select tool instance and to deploy it in the place just in time, based on tool status and machining schedule. An activity model of such a system for FMS is constructed for clarifying requirements for a tool database. Then to design such a tool database for satisfying the requirements, this study introduces an object-oriented method such as STEP technology, and implements the database using EXPRESS, C++, and object oriented database system.
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