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公开(公告)号：US09878414B2
公开(公告)日：2018-01-30
申请号：US14976467
申请日：2015-12-21
Applicant: OKUMA CORPORATION
Inventor： Shoichi Morimura
CPC classification number: B23Q11/0057 , B01F5/0206 , B05B3/06 , B23B27/10 , B23B2250/12 , B23Q11/0042 , B23Q11/1069 , B24B55/02 , B24B55/03 , Y10T137/85954 , Y10T137/86372
Abstract: A cutting fluid tank includes: a fluid ejection apparatus configured to eject fluid toward cutting fluid containing chips and to be capable of varying at least one of a direction and a position of ejection with time in an interior of a tank body configured to store the cutting fluid containing the chips flowed from a work portion of a machine tool. The fluid ejection apparatus includes an ejection head having an ejection port rotatable about an axis of rotation. The ejection port is at a twisted position with respect to the axis of rotation, and the ejection head is rotated by a reaction force of the fluid ejected from the ejection port. Part of the cutting fluid stored in the cutting fluid tank is used as the fluid to be ejected from the ejection port.
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公开(公告)号：US11254007B2
公开(公告)日：2022-02-22
申请号：US16589441
申请日：2019-10-01
Applicant: OKUMA Corporation
Inventor： Kiyoshi Yoshino , Shoichi Morimura
Abstract: A machine tool is disclosed which can suppress resonance of an in-machine robot even when vibration occurs during machining of a workpiece. Vibration of the in-machine robot is detected by a vibration sensor of the in-machine robot. When the vibration of the in-machine robot becomes greater than or equal to a threshold during machining of the workpiece, a controller changes a natural frequency of the in-machine robot by exchanging an end effector of the in-machine robot or by changing an orientation of the in-machine robot, to thereby suppress resonance of the in-machine robot.
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公开(公告)号：US10737333B2
公开(公告)日：2020-08-11
申请号：US16255143
申请日：2019-01-23
Applicant: OKUMA Corporation
Inventor： Tomoki Hayashi , Shoichi Morimura
IPC: B23B29/34 , B23Q3/155 , B23Q3/157 , B23B31/42 , B23B3/22 , B23Q7/04 , B23B29/24 , B23B31/40 , B23B29/20 , B23B3/16 , B25J15/04 , B25J15/00
Abstract: A machine tool includes: a turret configured to hold a tool through a clamp mechanism; a workpiece main spindle device configured to rotatably hold a workpiece; a switching unit configured to change a clamp state of the clamp mechanism by using rotation torque of the workpiece main spindle device; and an in-machine robot configured to move the switching unit. The clamp mechanism includes a torque input hole to which rotation torque is applied to change the clamp state. The switching unit includes an input shaft coupled with the workpiece main spindle device, an output shaft coupled with the torque input hole of the clamp mechanism and configured to output torque to the torque input hole, and a transmission mechanism configured to transfer, to the output shaft, the rotation torque of the workpiece main spindle device input through the input shaft.
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公开(公告)号：US09873173B2
公开(公告)日：2018-01-23
申请号：US14976616
申请日：2015-12-21
Applicant: OKUMA CORPORATION
Inventor： Shoichi Morimura
CPC classification number: B23Q11/1069 , B23B27/10 , B23B2250/12 , B23Q11/0042 , B23Q11/0057 , B24B55/02 , B24B55/03 , Y10T137/86196 , Y10T137/86204 , Y10T137/86212 , Y10T137/86228
Abstract: A cutting fluid tank includes a variable flow restricting device configured to restrict a flow of cutting fluid containing chips into an interior of a tank body configured to store the cutting fluid containing the chips flowed from a work portion of a machine tool. The variable flow restricting device includes variable partitioning members which constitute at least part of a partitioning that partitions a flow channel of the cutting fluid containing the chips. The variable partitioning member is pivotably and the flow channel varies in association with the pivotal motion of the variable partitioning member.
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公开(公告)号：US20160184950A1
公开(公告)日：2016-06-30
申请号：US14976616
申请日：2015-12-21
Applicant: OKUMA CORPORATION
Inventor： Shoichi Morimura
CPC classification number: B23Q11/1069 , B23B27/10 , B23B2250/12 , B23Q11/0042 , B23Q11/0057 , B24B55/02 , B24B55/03 , Y10T137/86196 , Y10T137/86204 , Y10T137/86212 , Y10T137/86228
Abstract: A cutting fluid tank includes a variable flow restricting device configured to restrict a flow of cutting fluid containing chips into an interior of a tank body configured to store the cutting fluid containing the chips flowed from a work portion of a machine tool. The variable flow restricting device includes variable partitioning members which constitute at least part of a partitioning that partitions a flow channel of the cutting fluid containing the chips. The variable partitioning member is pivotably and the flow channel varies in association with the pivotal motion of the variable partitioning member.
Abstract translation: 切削液箱包括可变流量限制装置，该可变流量限制装置构造成将包含碎屑的切削液的流动限制在罐主体的内部，罐主体构造成存储包含从机床的工作部分流出的碎屑的切削流体。 可变流量限制装置包括可变分隔构件，其构成分隔包含芯片的切削液的流动通道的划分的至少一部分。 可变分隔构件可枢转地并且流动通道与可变分隔构件的枢转运动相关联地变化。
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Patent Agency Ranking
公开(公告)号：US11571775B2
公开(公告)日：2023-02-07
申请号：US16986773
申请日：2020-08-06
Applicant: OKUMA Corporation
Inventor： Shoichi Morimura
Abstract: A machine tool is disclosed. The machine tool includes a robot which is compact and which enables easy use of different end effectors for respective purposes. An internal robot includes a plurality of joints that are composed of a base joint and parallel joints, and a plurality of links. The distal end is split into two or more branches, each having a tool changer. An end effector is detachably attachable to each of the tool changers. Rotation of the base joint causes a change between a first tool-following position and a second tool-following position, so that different end effectors are used for respective purposes by using an end effector attached to a tool changer in the first tool-following position and using an end effector attached to another tool changer in the second tool-following position.
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公开(公告)号：US11027417B2
公开(公告)日：2021-06-08
申请号：US15907726
申请日：2018-02-28
Applicant: OKUMA Corporation
Inventor： Shoichi Morimura
Abstract: A machine tool includes a workpiece spindle that retains a workpiece or a tool, a spindle motor that rotates the workpiece spindle, an in-machine robot that is provided inside the machine tool and that is an articulated robot having one or more joints, and a plurality of gears that connect or disconnect a root joint which is placed, among the one or more joints, closest to a base end, and the spindle motor to or from each other.
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公开(公告)号：US10889012B2
公开(公告)日：2021-01-12
申请号：US15668172
申请日：2017-08-03
Applicant: OKUMA Corporation
Inventor： Shoichi Morimura
IPC: B25J19/00 , B23Q11/00 , B08B1/00 , B23Q17/09 , B23Q17/12 , B23Q11/10 , B08B3/02 , B23B3/06 , B25J15/00 , B25J19/02 , B25J9/04 , B25J21/00
Abstract: A machine tool which removal-machines a workpiece by a tool includes an in-machine robot provided in a machining chamber, and a cleaning mechanism that cleans the in-machine robot by removing an adhering substance adhering to the in-machine robot. When the in-machine robot is cleaned, the in-machine robot moves relative to the cleaning mechanism and positions in proximity to the cleaning mechanism.
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公开(公告)号：US10603752B2
公开(公告)日：2020-03-31
申请号：US15581409
申请日：2017-04-28
Applicant: OKUMA Corporation
Inventor： Shoichi Morimura
Abstract: A machine tool that cuts a workpiece by a rotary tool includes a tool spindle device that holds the rotary tool in a manner to allow self-rotation with a predefined tool rotational axis Rt as a center, one or more in-machine robots, and a connecting mechanism that attaches the in-machine robot on the tool spindle device so that the in-machine robot moves independently from the rotary tool at a periphery of the tool spindle device with the tool rotational axis Rt as a center.
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公开(公告)号：US10307877B2
公开(公告)日：2019-06-04
申请号：US15581372
申请日：2017-04-28
Applicant: OKUMA Corporation
Inventor： Shoichi Morimura
IPC: B23Q11/00 , B23K26/00 , B23Q11/10 , B23Q17/24 , B25J9/00 , B25J11/00 , B23Q1/76 , B23Q7/04 , B23Q17/00
Abstract: A machine tool that machines a workpiece by a tool includes a workpiece spindle device that holds the workpiece in a rotatable manner with a predefined workpiece rotational axis Rw as a center, one or more in-machine robots, and a connecting mechanism that attaches the one or more robots on the machine tool so that the one or more robots move independently from the workpiece, with the workpiece rotational axis Rw serving as a center.
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