초록 ▼

A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and ac

A machine tool that can output an abnormal noise is provided. A machine tool includes: an input unit configured to receive an input of a setting for defining an operation mode of the machine tool; a storage unit configured to store sound generated during a normal operation of the machine tool and acquired in advance; a sound collection unit configured to collect sound in the machining area; a sound selection unit configured to extract a part of sound collected in the machining area in accordance with the setting input for outputting sound to the outside of the machine tool; and a sound output unit configured to output sound extracted by the sound selection unit to the outside of the machining area.

대표청구항 ▼

1. A machine tool comprising: an enclosed machining area that includes a door that remains closed during operation of the machine tool;a microphone configured to collect sounds generated by the operation of the machine tool in the enclosed machining area; andcircuitry configured to receive, from an

1. A machine tool comprising: an enclosed machining area that includes a door that remains closed during operation of the machine tool;a microphone configured to collect sounds generated by the operation of the machine tool in the enclosed machining area; andcircuitry configured to receive, from an operator of the machine tool, an input of a characteristic of the sounds generated by the operation of the machine tool to be used to extract an abnormal noise part of the sounds generated by the operation of the machine tool;extract the abnormal noise part of the sounds generated by the operation of the machine tool and collected in the enclosed machining area for output to the operator, the abnormal noise part being extracted in accordance with the characteristic of the sounds input by the operator; andoutput only the extracted abnormal noise part of the sounds to a speaker or earphone located outside of the enclosed machining area during the operation of the machine tool, whereinthe extracted abnormal noise part does not include all the sounds generated by the operation of the machine tool and collected in the enclosed machining area. 2. The machine tool according to claim 1, wherein the circuitry is configured to: extract a sound element included in a range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as extraction criteria of the abnormal noise part of the collected in the enclosed machining area; orremove the sound element included in the range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as exclusion criteria of the sounds collected in the enclosed machining area and extract the remaining sound from which the sound element is removed as the abnormal noise part of the sounds. 3. The machine tool according to claim 1, further comprising: a storage medium configured to store a signal of sound acquired in advance as an operation sound of the machine tool, whereinthe circuitry is configured to: extract a sound element similar to the signal of sound acquired in advance as the abnormal noise part of the sounds, orextract the abnormal noise part of the sounds by removing the signal of sound acquired in advance from the sounds collected in the enclosed machining area. 4. A machine tool comprising: an enclosed machining area that includes a door that remains closed during operation of the machine tool;a microphone configured to collect sounds generated by the operation of the machine tool in the enclosed machining area; andcircuitry configured to receive, from an operator of the machine tool, an input of a characteristic of the sounds generated by the operation of the machine tool to be used to extract an abnormal noise part of the sounds generated by the operation of the machine tool;extract the abnormal noise part of the sounds corresponding to an abnormal noise that is generated by the operation of the machine tool and collected in the enclosed machining area in accordance with the characteristic of the sounds input by the operator;output only the extracted abnormal noise part of the sounds to a speaker or earphone located outside of the enclosed machining area during the operation of the machine tool; andprovide, during the operation of the machine tool, an indication to the operator of the machine tool that a signal level of the extracted abnormal noise part of the sounds is deviated from a predetermined range when the signal level is deviated from the predetermined range. 5. The machine tool according to claim 4, wherein the circuitry is configured to: extract a sound element included in a range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as extraction criteria of the abnormal noise part of the sounds collected in the enclosed machining area; orremove the sound element included in the range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as exclusion criteria of the sounds collected in the enclosed machining area and extract the remaining sound from which the sound element is removed as the abnormal noise part of the sounds. 6. The machine tool according to claim 4, further comprising: a storage medium configured to store a signal of sound acquired in advance as an operation sound of the machine tool, whereinthe circuitry is configured to: extract a sound element similar to the signal of sound acquired in advance as the abnormal noise part of the sounds, orextract the abnormal noise part of the sounds by removing the signal of sound acquired in advance from the sounds collected in the enclosed machining area. 7. A method for controlling a machine tool, comprising: collecting sound generated by operation of the machine tool in an enclosed machining area of the machine tool that includes a door that remains closed during the operation of the machine tool;receiving, from an operator of the machine tool, an input of a characteristic of the sounds generated by the operation of the machine tool to be used to extract an abnormal noise part of the sounds generated by the operation of the machine tool;extracting the abnormal noise part of the sounds collected in the enclosed machining area for output to the operator, the abnormal noise being extracted in accordance with the characteristic of the sounds input by the operator; andoutputting only the extracted abnormal noise part of the sounds to a speaker or earphone located outside of the enclosed machining area during the operation of the machine tool, whereinthe extracted abnormal noise part does not include all the sounds generated by the operation of the machine tool and collected in the enclosed machining area. 8. The method according to claim 7, wherein the extracting includes: extracting a sound element included in a range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as extraction criteria of the abnormal noise part of the sounds collected in the enclosed machining area; orremoving the sound element included in the range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as exclusion criteria of the sounds collected in the enclosed machining area and extracting the remaining sound from which the sound element is removed as the abnormal noise part of the sounds. 9. The method according to claim 7, further comprising: accessing a signal of sound acquired in advance as an operation sound of the machine tool, whereinthe extracting includes: extracting a sound element similar to the signal of sound acquired in advance as the abnormal noise part of the sounds, orextracting the abnormal noise part of the sounds by removing the signal of sound acquired in advance from the sounds collected in the enclosed machining area. 10. A method for controlling a machine tool, comprising: collecting sounds generated by operation of the machine tool in an enclosed machining area of the machine tool that includes a door that remains closed during the operation of the machine tool;receiving, from an operator of the machine tool, an input of a characteristic of the sounds generated by the operation of the machine tool to be used to extract an abnormal noise part of the sounds generated by the operation of the machine tool;extracting an abnormal noise part of the sounds corresponding to an abnormal noise that is generated by the operation of the machine tool and collected in the enclosed machining area in accordance with the characteristic of the sounds input by the operator;output only the extracted abnormal noise pan of the sounds to a speaker or earphone located outside of the enclosed machining area during the operation of the machine tool; andproviding, during the operation of the machine tool, an indication to the operator of the machine tool that a signal level of the extracted abnormal noise part of the sounds is deviated from a predetermined range when the signal level is deviated from the predetermined range. 11. The method according to claim 10, wherein the extracting includes: extracting a sound element included in a range defined by the input characteristic regarding at least one of a frequency, a phase and an amplitude selected as extraction criteria of the abnormal noise part of the sounds collected in the enclosed machining area; orremoving the sound element included in the range defined by the setting input characteristic regarding at least one of a frequency, a phase and an amplitude selected as exclusion criteria of the sounds collected in the enclosed machining area and extracting the remaining sound from which the sound element is removed as the abnormal noise part of the sounds. 12. The method according to claim 10, further comprising: accessing a signal of sound acquired in advance as an operation sound of the machine tool, whereinthe extracting includes: extracting a sound element similar to the signal of acquired in advance as the abnormal noise part of the sounds, orextracting the abnormal noise part of the sounds by removing the signal of sound acquired in advance from the sounds collected in the enclosed machining area. 13. The machine tool according to claim 1, further comprising: a memory configured to store a predetermined sound for each of a plurality of operation modes, whereinthe circuitry is configured to extract the abnormal noise part of the sounds generated by the operation of the machine tool based on the predetermined sound associated with a selected one of the plurality of operation modes. 14. The machine tool according to claim 4, further comprising: a memory configured to store a predetermined sound for each of a plurality of operation modes, whereinthe circuitry is configured to extract the abnormal noise part of the sound corresponding to the abnormal noise that is generated by the operation of the machine tool based on the predetermined sound associated with a selected one of the plurality of operation modes.