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Research on RFID Technology in Tool Changing of the NC System

In order to avoid the problem of tool destroyed and machine damaged because the NC (numerical control) system appeares tool identification error in the tool changing process, in the paper, the author constructed a based on RFID(radio frequency identification) technology tool changing model of the numerical control system. It can improve the tool's high reliability recognition, shorten tool changing process time and reduce the failure rate. it can realize RFID equipment and tool management information system integration that the tag sticked in the tool of the NC system is regarded as information identification basis. The author analyzes automatic tool changing process based on RFID, constructs the system hardware platform and designs software.