Abstract: A server communicable with a plurality of machine tools via a network, includes a control unit and a storage unit, in which the control unit includes: an accumulating unit that collects display screen data from the machine tool at a predetermined time interval, and accumulates the display screen data in the storage unit along with time information and individual identification information of the machine tool; a receiver that receives a captured image of a display screen of a machine tool sent from an information terminal; a comparison unit that conducts a comparison between the captured image of the display screen of the machine tool received from the information terminal, and the display screen data accumulated in the storage unit, and specifies the display screen data that is matching; and a transmitter that transmits individual identification information of a specified machine tool as a result of the comparison to the terminal.

Abstract: The spindle drive unit of a combined machine tool drives the spindle. The tip end of the spindle is provided with a boring tool and a tool head having a rough grinding stone and a finishing grinding stone. The spindle drive unit has a first support unit and a second support unit capable of receiving the spindle therethrough and supporting it rotatably, a linear motor and a column slide mechanism for moving the first and second support unit in the axis direction of the spindle, and a spindle motor for rotating the spindle.

Abstract: The spindle drive unit of a combined machine tool drives the spindle. The tip end of the spindle is provided with a boring tool and a tool head having a rough grinding stone and a finishing grinding stone. The spindle drive unit has a first support unit and a second support unit capable of receiving the spindle therethrough and supporting it rotatably, a linear motor and a column slide mechanism for moving the first and second support unit in the axis direction of the spindle, and a spindle motor for rotating the spindle.