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).
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Publication number: 20240116149Abstract: 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: ApplicationFiled: April 30, 2021Publication date: April 11, 2024Inventors: Katsuhito MIYAHARA, Kento HIEI
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Publication number: 20240075576Abstract: 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: ApplicationFiled: January 22, 2021Publication date: March 7, 2024Inventors: Tatsuhiko KURIYA, Koji IIYAMA, Katsuhito MIYAHARA
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Publication number: 20230173626Abstract: 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: ApplicationFiled: May 14, 2020Publication date: June 8, 2023Applicant: DMG MORI CO., LTD.Inventors: Takafumi DOI, Katsuhito MIYAHARA, Tatsuhiko KURIYA
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Patent number: 11407036Abstract: 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: GrantFiled: November 28, 2017Date of Patent: August 9, 2022Assignee: DMG MORI CO., LTD.Inventors: Tatsuhiko Kuriya, Katsuhito Miyahara, Atsushi Tokuhara
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Patent number: 11247304Abstract: 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: GrantFiled: August 20, 2018Date of Patent: February 15, 2022Assignee: DMG MORI CO., LTD.Inventors: Tatsuhiko Kuriya, Katsuhito Miyahara, Keiichi Kiriyama
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Publication number: 20200171651Abstract: 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: ApplicationFiled: August 20, 2018Publication date: June 4, 2020Applicant: DMG MORI CO., LTD.Inventors: Tatsuhiko KURIYA, Katsuhito MIYAHARA, Keiichi KIRIYAMA
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Publication number: 20200001372Abstract: 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: ApplicationFiled: November 28, 2017Publication date: January 2, 2020Applicant: DMG MORI CO., LTD.Inventors: Tatsuhiko KURIYA, Katsuhito MIYAHARA, Atsushi TOKUHARA
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Patent number: 9555514Abstract: 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: GrantFiled: February 5, 2016Date of Patent: January 31, 2017Assignee: DMG MORI CO., LTD.Inventors: Kento Komine, Katsuhito Miyahara, Tatsuhiko Kuriya
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Publication number: 20160229013Abstract: 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: ApplicationFiled: February 5, 2016Publication date: August 11, 2016Applicant: DMG MORI CO., LTD.Inventors: Kento KOMINE, Katsuhito MIYAHARA, Tatsuhiko KURIYA
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Patent number: 9333608Abstract: 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: GrantFiled: July 14, 2014Date of Patent: May 10, 2016Assignee: DMG MORI SEIKI CO., LTD.Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
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Publication number: 20140331463Abstract: 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: ApplicationFiled: July 14, 2014Publication date: November 13, 2014Applicant: MORI SEIKI CO., LTD.Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
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Patent number: 8814769Abstract: 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: GrantFiled: October 8, 2010Date of Patent: August 26, 2014Assignee: DMG Mori Seiki Co., Ltd.Inventors: Kazuya Fujioka, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya
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Publication number: 20110107573Abstract: 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: ApplicationFiled: October 8, 2010Publication date: May 12, 2011Applicant: MORI SEIKI CO., LTD.Inventors: Kazuya FUJIOKA, Yohei Shinkai, Katsuhito Miyahara, Kaoru Yasumatsuya