NC device

An NC device for numerically controlling a machine in accordance with an NC machining program, comprising:

• an accumulation portion for accumulating a report item corresponding to a report-requiring situation that occurs in the machine, wherein the report-requiring situation is at least one of a situation in which a machining problem occurs in the machine and a situation for requiring an operator to generate an instruction for a subsequent operation for the machine;
• a voice generator for generating a voice;
• a voice generator control section for controlling the voice generator;
• and
• a determination portion for determining whether or not operator-in-range information has been generated for indicating that an operator is located in an audible range of the voice generated by the voice generator when the report requiring situation occurs in the machine;
• wherein the voice generator control section operates the voice generator to generate the voice for announcing the report item accumulated by the accumulation portion if the determination portion determines that the operator-in-range information has been generated but does not permit the voice generator to generate the voice if the determination portion determines that the operator-in-range information has not been generated;
• wherein the voice generator control section does not permit the voice generator to generate the voice if the accumulation portion does not accumulate the report-item.

An NC device numerically for controlling a machine in accordance with an NC machining program, comprising:

• an accumulation portion for accumulating a report item corresponding to a report-requiring situation that occurs in the machine, wherein the report-requirinq situation is at least one of a situation in which a machining problem occurs in the machine and a situation for requiring an operator to generate an instruction for a subsequent operation for the machine;
• a voice generator for generating a voice:
• a voice generator control section for controlling the voice generator;
• and
• a request portion for requesting generation of the voice when the request portion is manipulated by the operator or in response to detection of the operator in an audible range of the voice;
• wherein the voice generator control section operates the voice generator to generate the voice for announcing the report item accumulated by the accumulation portion in response to a request generated by the request portion but does not permit the voice generator to generate the voice if the request by the request portion has not been generated;
• wherein the voice generator control section does not permit the voice generator to generate the voice if the accumulation portion does not accumulate the report item.