Patents by Inventor Katsuhito Miyahara

Katsuhito Miyahara 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).

  • Publication number: 20240116149
    Abstract: Provided is a bar feeder that pushes a rod-shaped workpiece into a hollow main shaft having a holding mechanism at one end of the main shaft, from another end, the bar feeder being arranged in a work room arranged adjacent to a processing room where the main shaft is installed, the work room being provided with a work machine including a transport mechanism for moving an article to and from the processing room, and the bar feeder being arranged at a position at which at least a portion thereof overlaps with the work mechanism in a top view or a front view.
    Type: Application
    Filed: April 30, 2021
    Publication date: April 11, 2024
    Inventors: Katsuhito MIYAHARA, Kento HIEI
  • Publication number: 20240075576
    Abstract: Disclosed is a workpiece diameter measurement method including the steps of: measuring coordinates of a point P that is on an outer circumferential surface of a cylindrical workpiece that is supported such that a rotary axis of a main spindle of a machine tool and a central axis of the cylindrical workpiece coincide with each other, the coordinates having a maximum or minimum coordinate in a first direction that is orthogonal to the rotary axis; calculating a distance D2 in the first direction between the point P and a reference point Q that is a point at which a distance D1 in the first direction from the rotary axis is known; and calculating a workpiece diameter of the cylindrical workpiece based on the distance D1 and the distance D2.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 7, 2024
    Inventors: Tatsuhiko KURIYA, Koji IIYAMA, Katsuhito MIYAHARA
  • Publication number: 20230173626
    Abstract: The machine tool includes a coolant tank provided in front of a bed in a machine front direction, a wire/pipe housing box provided at a first position in front of the coolant tank in the machine front direction, and a support arm capable of supporting the wire/pipe housing box retracted from the first position to a second position higher than the coolant tank.
    Type: Application
    Filed: May 14, 2020
    Publication date: June 8, 2023
    Applicant: DMG MORI CO., LTD.
    Inventors: Takafumi DOI, Katsuhito MIYAHARA, Tatsuhiko KURIYA
  • Patent number: 11407036
    Abstract: A machine tool (1) removes chips adhering to a working portion of a tool (T). More specifically, a fluid injecting nozzle (23, 24) injects a fluid toward the tool (T) enclosed in an enclosure (22). A controller (15) controls a position of the tool (T) within the enclosure (22), and further controls operation of the fluid injecting nozzle (23, 24) such that the fluid is injected when the tool (T) is within the enclosure (22).
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: August 9, 2022
    Assignee: DMG MORI CO., LTD.
    Inventors: Tatsuhiko Kuriya, Katsuhito Miyahara, Atsushi Tokuhara
  • Patent number: 11247304
    Abstract: A workpiece information recognition system includes a workpiece placing tool (20) capable of placing a workpiece, a reference block (31) detachably provided on workpiece placing tool (20), an information detector configured to detect information about reference block (31), and a control device configured to receive the information of reference block (31) from the information detector. The control device includes a storage configured to store data on a relationship between the information about reference block (31) and information about the workpiece and a controller configured to recognize the information about the workpiece placed on workpiece placing tool (20) by checking the information about reference block (31) detected by the information detector with the data stored in the storage. With this configuration, the workpiece information recognition system capable of easily cope with a change in a type of the workpiece is provided.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: February 15, 2022
    Assignee: DMG MORI CO., LTD.
    Inventors: Tatsuhiko Kuriya, Katsuhito Miyahara, Keiichi Kiriyama
  • Publication number: 20200171651
    Abstract: A workpiece information recognition system includes a workpiece placing tool (20) capable of placing a workpiece, a reference block (31) detachably provided on workpiece placing tool (20), an information detector configured to detect information about reference block (31), and a control device configured to receive the information of reference block (31) from the information detector. The control device includes a storage configured to store data on a relationship between the information about reference block (31) and information about the workpiece and a controller configured to recognize the information about the workpiece placed on workpiece placing tool (20) by checking the information about reference block (31) detected by the information detector with the data stored in the storage. With this configuration, the workpiece information recognition system capable of easily cope with a change in a type of the workpiece is provided.
    Type: Application
    Filed: August 20, 2018
    Publication date: June 4, 2020
    Applicant: DMG MORI CO., LTD.
    Inventors: Tatsuhiko KURIYA, Katsuhito MIYAHARA, Keiichi KIRIYAMA
  • Publication number: 20200001372
    Abstract: Provided is a machine tool (1) capable of effectively removing machining chips adhering to a portion excluding a held portion and including a machining working portion of a tool (T).
    Type: Application
    Filed: November 28, 2017
    Publication date: January 2, 2020
    Applicant: DMG MORI CO., LTD.
    Inventors: Tatsuhiko KURIYA, Katsuhito MIYAHARA, Atsushi TOKUHARA
  • Patent number: 9555514
    Abstract: A workpiece discharge device for a machine tool is provided with a container, which is mounted on a turret and receives a workpiece held by a spindle from a receiving port, and a storage box, which stores the workpiece inside the container by using a revolution of the turret and passing through a chute. The container is mounted on the turret and is capable of swinging around a swinging shaft which is parallel to a revolving axis of the turret, and the receiving port is arranged to direct vertically upward in a predetermined indexing angle range of the container when the workpiece is received.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 31, 2017
    Assignee: DMG MORI CO., LTD.
    Inventors: Kento Komine, Katsuhito Miyahara, Tatsuhiko Kuriya
  • Publication number: 20160229013
    Abstract: A workpiece discharge device for a machine tool is provided with a container, which is mounted on a turret and receives a workpiece held by a spindle from a receiving port, and a storage box, which stores the workpiece inside the container by using a revolution of the turret and passing through a chute. The container is mounted on the turret and is capable of swinging around a swinging shaft which is parallel to a revolving axis of the turret, and the receiving port is arranged to direct vertically upward in a predetermined indexing angle range of the container when the workpiece is received.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 11, 2016
    Applicant: DMG MORI CO., LTD.
    Inventors: Kento KOMINE, Katsuhito MIYAHARA, Tatsuhiko KURIYA
  • Patent number: 9333608
    Abstract: A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: May 10, 2016
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
  • Publication number: 20140331463
    Abstract: A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.
    Type: Application
    Filed: July 14, 2014
    Publication date: November 13, 2014
    Applicant: MORI SEIKI CO., LTD.
    Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
  • Patent number: 8814769
    Abstract: A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 26, 2014
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
  • Publication number: 20110107573
    Abstract: A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.
    Type: Application
    Filed: October 8, 2010
    Publication date: May 12, 2011
    Applicant: MORI SEIKI CO., LTD.
    Inventors: Kazuya FUJIOKA, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya