Machine tool and machine tool system
AssigneeFanuc Corporation
InventorYoshitsugu Ogawa
Life of this patent
Estimating the term…
Abstract
A machine tool includes: a door that opens and closes an opening in a shield cover surrounding a machining chamber; an electromagnetic lock device that includes dual-system switches that detect an open/closed state of the door, and that can lock the door in a closed state; a door position detection unit that detects a position of the door; and a report unit that monitors states of the dual-system switches of the electromagnetic lock device and suggests maintenance of the door when the states differ from each other for a predetermined period of time and when the door position detection unit detects that the door is not in a closed position.
Claims7
A machine tool comprising:
- a door that opens and closes an opening in a shield cover surrounding a machining chamber;
- an electromagnetic lock device that includes dual-system switches that detect an open/closed state of the door, and that can lock the door in a closed state;
- a controller,
- wherein the controller is configured to:
- monitor states of the dual-system switches of the electromagnetic lock device and output an alarm when the states differ from each other for a predetermined period of time;
- determine, when the alarm is output, whether the door is in an open position or a closed position;
- in response to determining that the door is in the open position, output a message suggesting maintenance of the door;
- and
- in response to determining that the door is in the closed position, output a message different from the message suggesting maintenance of the door.
A machine tool system comprising:
- a machine tool and a controller,
- wherein the machine tool includes a door that opens and closes an opening in a shield cover surrounding a machining chamber, and an electromagnetic lock device that includes dual-system switches that detect an open/closed state of the door and that can lock the door in a closed state, and
- the controller is configured to:
- monitor states of the dual-system switches of the electromagnetic lock device and output an alarm when the states differ from each other for a predetermined period of time;
- determine, when the alarm is output, whether the door is in an open position or a closed position;
- in response to determining that the door is in the open position, output a message suggesting maintenance of the door;
- and
- in response to determining that the door is in the closed position, output a message different from the message suggesting maintenance of the door.
Dependencies are inferred from the claim text.