Machine tool and machine tool system

Abstract

A machine tool (1) includes: a door (5) that opens and closes an opening in a shield cover (3) surrounding a machining chamber; an electromagnetic lock device (6) that includes dual-system switches that detect an open/closed state of the door (5), and that can lock the door (5) in a closed state; a door position detection unit that detects a position of the door (5); and a report unit that monitors states of the dual-system switches of the electromagnetic lock device (6) and suggests maintenance of the door (5) when the states differ from each other for a predetermined period of time and when the door position detection unit detects that the door (5) is not in a closed position.

Dependencies are inferred from the claim text.