Patents by Inventor Hirohide TSUNODA

Hirohide TSUNODA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11481630
    Abstract: A machining condition adjustment device includes a data acquisition unit that acquires at least one piece of data indicating a state of machining including a machining type in a machine tool, a priority condition storage unit that stores priority condition data in which the machining type is associated with a priority condition, a preprocessing unit that produces data to be used for machine learning, and a machine learning device that carries out processing of the machine learning related to at least either of a machining condition and a machining parameter for machining by the machine tool. The machine learning device includes a learning model storage unit that stores a plurality of learning models generated for each machining type and a learning model selection unit that selects a learning model, based on the machining type.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 25, 2022
    Assignee: FANUC CORPORATION
    Inventors: Hirohide Tsunoda, Wataru Shiraishi
  • Patent number: 11280679
    Abstract: To provide a temperature measuring device for a thermal displacement compensation device, in which the values output by temperature sensors are shared among a plurality of machine tools, and thus the total number of the temperature sensors is reduced, thereby suppressing the total cost and also reducing the failure risk of the temperature sensors installed in the machine tools. A plurality of machine tools are made to use, in order to monitor a temperature of each of one or more common positions set in advance, temperature information measured by a temperature sensor installed at any position in the common positions in each of the machine tools, as temperature information of any position in the common positions without a temperature sensor installed in another machine tool in the plurality of machine tools.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: March 22, 2022
    Assignee: FANUC CORPORATION
    Inventors: Susumu Maekawa, Hirohide Tsunoda
  • Patent number: 11249454
    Abstract: Provided is a thermal displacement correction device capable of continuing a thermal displacement correction with high accuracy even when some of a plurality of sensors fail. The thermal displacement correction device includes a sensor information acquisition unit that acquires machine tool temperatures detected by the sensor and a state of the sensors, a thermal displacement estimating method storage unit that stores a plurality of thermal displacement estimating methods, a thermal displacement estimating method selection unit that selects a thermal displacement estimating method to be used for estimating the thermal displacement amount of the machine tool based on the state of the sensors, and a thermal displacement estimating unit that estimates the thermal displacement amount of the machine tool based on the machine tool temperature according to the thermal displacement estimating method selected by the thermal displacement estimating method selection unit.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 15, 2022
    Assignee: FANUC CORPORATION
    Inventors: Susumu Maekawa, Hirohide Tsunoda
  • Patent number: 11209794
    Abstract: To provide an abnormality determination apparatus, a computer readable medium, an abnormality determination system and an abnormality determination method which can simply detect an abnormality of a temperature in a machine tool without incurring cost. An abnormality determination apparatus which determines abnormality of a temperature sensor in a plurality of machine tools, in which the plurality of machine tools is equivalent machine type, is arranged in equivalent environments, are provided with a temperature sensor at equivalent positions, the abnormality determination apparatus including: a temperature data acquisition unit which acquires temperature data outputted by the temperature sensors from each of the plurality of machine tools; a comparison unit which compares the temperature data acquired by the temperature data acquisition unit; and an abnormality determination unit which determines abnormality of the temperature sensor based on a comparison result by the comparison unit.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: December 28, 2021
    Assignee: FANUC CORPORATION
    Inventors: Susumu Maekawa, Hirohide Tsunoda
  • Patent number: 11150626
    Abstract: To provide a reference temperature setting device, a reference temperature setting method, and a reference temperature setting program capable of setting an appropriate reference temperature for thermal displacement compensation. A reference temperature setting device comprises: an acquisition unit that acquires measured values from multiple temperature sensors installed on a machine; and a determination unit that determines setting timing for a reference temperature for thermal displacement compensation to coincide with a point in time when the measured values satisfy a predetermined condition.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: October 19, 2021
    Assignee: FANUC CORPORATION
    Inventors: Susumu Maekawa, Hirohide Tsunoda
  • Patent number: 10890892
    Abstract: An abnormality determination apparatus, which determines abnormality of a temperature sensor in a machine tool, includes: a temperature pattern storage unit which stores a normal pattern indicating temperature change relative to machining time for a machining classification of the machine tool; a temperature data acquisition unit which acquires temperature data outputted by the temperature sensor provided to the machine tool; a machining classification determination unit which determines a machining classification of the machine tool; a comparison data acquisition unit which extracts the normal pattern relative to a determined machining classification from the temperature pattern storage unit; a comparison unit which compares the extracted normal pattern, and as acquired pattern indicating temperature change relative to machining time according to the acquired temperature data; and an abnormality determination unit which determines abnormality of a temperature sensor based on a comparison result.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: January 12, 2021
    Assignee: FANUC CORPORATION
    Inventors: Susumu Maekawa, Hirohide Tsunoda
  • Publication number: 20200279158
    Abstract: A machining condition adjustment device includes a data acquisition unit that acquires at least one piece of data indicating a state of machining including a machining type in a machine tool, a priority condition storage unit that stores priority condition data in which the machining type is associated with a priority condition, a preprocessing unit that produces data to be used for machine learning, and a machine learning device that carries out processing of the machine learning related to at least either of a machining condition and a machining parameter for machining by the machine tool. The machine learning device includes a learning model storage unit that stores a plurality of learning models generated for each machining type and a learning model selection unit that selects a learning model, based on the machining type.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Inventors: Hirohide TSUNODA, Wataru SHIRAISHI
  • Publication number: 20190242756
    Abstract: To provide a temperature measuring device for a thermal displacement compensation device, in which the values output by temperature sensors are shared among a plurality of machine tools, and thus the total number of the temperature sensors is reduced, thereby suppressing the total cost and also reducing the failure risk of the temperature sensors installed in the machine tools. A plurality of machine tools are made to use, in order to monitor a temperature of each of one or more common positions set in advance, temperature information measured by a temperature sensor installed at any position in the common positions in each of the machine tools, as temperature information of any position in the common positions without a temperature sensor installed in another machine tool in the plurality of machine tools.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 8, 2019
    Inventors: Susumu MAEKAWA, Hirohide TSUNODA
  • Publication number: 20190235472
    Abstract: An abnormality determination apparatus, which determines abnormality of a temperature sensor in a machine tool, includes: a temperature pattern storage unit which stores a normal pattern indicating temperature change relative to machining time for a machining classification of the machine tool; a temperature data acquisition unit which acquires temperature data outputted by the temperature sensor provided to the machine tool; a machining classification determination unit which determines a machining classification of the machine tool; a comparison data acquisition unit which extracts the normal pattern relative to a determined machining classification from the temperature pattern storage unit; a comparison unit which compares the extracted normal pattern, and as acquired pattern indicating temperature change relative to machining time according to the acquired temperature data; and an abnormality determination unit which determines abnormality of a temperature sensor based on a comparison result.
    Type: Application
    Filed: January 22, 2019
    Publication date: August 1, 2019
    Inventors: Susumu MAEKAWA, Hirohide TSUNODA
  • Publication number: 20190235470
    Abstract: To provide an abnormality determination apparatus, a computer readable medium, an abnormality determination system and an abnormality determination method which can simply detect an abnormality of a temperature in a machine tool without incurring cost. An abnormality determination apparatus which determines abnormality of a temperature sensor in a plurality of machine tools, in which the plurality of machine tools is equivalent machine type, is arranged in equivalent environments, are provided with a temperature sensor at equivalent positions, the abnormality determination apparatus including: a temperature data acquisition unit which acquires temperature data outputted by the temperature sensors from each of the plurality of machine tools; a comparison unit which compares the temperature data acquired by the temperature data acquisition unit; and an abnormality determination unit which determines abnormality of the temperature sensor based on a comparison result by the comparison unit.
    Type: Application
    Filed: January 10, 2019
    Publication date: August 1, 2019
    Inventors: Susumu MAEKAWA, Hirohide TSUNODA
  • Publication number: 20190235469
    Abstract: To provide a reference temperature setting device, a reference temperature setting method, and a reference temperature setting program capable of setting an appropriate reference temperature for thermal displacement compensation. A reference temperature setting device comprises: an acquisition unit that acquires measured values from multiple temperature sensors installed on a machine; and a determination unit that determines setting timing for a reference temperature for thermal displacement compensation to coincide with a point in time when the measured values satisfy a predetermined condition.
    Type: Application
    Filed: January 2, 2019
    Publication date: August 1, 2019
    Inventors: Susumu MAEKAWA, Hirohide TSUNODA
  • Publication number: 20190235471
    Abstract: Provided is a thermal displacement correction device capable of continuing a thermal displacement correction with high accuracy even when some of a plurality of sensors fail. The thermal displacement correction device includes a sensor information acquisition unit that acquires machine tool temperatures detected by the sensor and a state of the sensors, a thermal displacement estimating method storage unit that stores a plurality of thermal displacement estimating methods, a thermal displacement estimating method selection unit that selects a thermal displacement estimating method to be used for estimating the thermal displacement amount of the machine tool based on the state of the sensors, and a thermal displacement estimating unit that estimates the thermal displacement amount of the machine tool based on the machine tool temperature according to the thermal displacement estimating method selected by the thermal displacement estimating method selection unit.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Inventors: Susumu MAEKAWA, Hirohide TSUNODA