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公开(公告)号:US20250076019A1
公开(公告)日:2025-03-06
申请号:US18820539
申请日:2024-08-30
Applicant: MITUTOYO CORPORATION
Inventor: Masashi YAMAJI , Chihiro YAMAMOTO , Yuhei TAKATSU , Shuji HAYASHIDA
Abstract: An automatic measuring apparatus includes a measuring device that measures a dimension of a workpiece, the measuring device including a movable element that is displaceable with respect to a fixed element and moves forward and backward to be brought into contact with or away from the workpiece, and a displacement detection part that detects a displacement or position of the movable element, and an automatic operation part that automates the forward/backward movement of the movable element by power. A workpiece holding part that holds the workpiece in such a manner that a position and posture of the workpiece is changed at a pressure lower than a predetermined measurement pressure set in advance in the measuring device when the movable element is brought into contact with the workpiece.
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公开(公告)号:US20240151506A1
公开(公告)日:2024-05-09
申请号:US18385501
申请日:2023-10-31
Applicant: MITUTOYO CORPORATION
Inventor: Yuhei TAKATSU , Masashi YAMAJI , Yuya ARASHI , Chihiro YAMAMOTO , Shuji HAYASHIDA
CPC classification number: G01B5/12 , B25J9/1694
Abstract: An automatic measuring apparatus includes an inside-diameter measuring unit that measures the inside diameter of a workpiece, a robot arm part, and a control unit. The inside-diameter measuring unit is installed with the tip side facing upward. A cone-shaped guide cone is provided at the tip of the inside-diameter measuring unit. A workpiece stopper is attached to the outside of the inside-diameter measuring unit. A support surface, which serves as a placing surface on which the workpiece is placed, is supported by a spring, and the inclination and position of the support surface changes to follow a change in the posture and position of the workpiece.
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公开(公告)号:US20230304785A1
公开(公告)日:2023-09-28
申请号:US18124942
申请日:2023-03-22
Applicant: MITUTOYO CORPORATION
Inventor: Keita OGAWA , Masashi YAMAJI , Yuhei TAKATSU , Chihiro YAMAMOTO
Abstract: There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.
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公开(公告)号:US20240263932A1
公开(公告)日:2024-08-08
申请号:US18431195
申请日:2024-02-02
Applicant: MITUTOYO CORPORATION
Inventor: Masashi YAMAJI
IPC: G01B5/02
CPC classification number: G01B5/02
Abstract: An automatic measuring apparatus includes a measuring device that measures a workpiece dimension by a movable element, an automatic operation part that automates the forward/backward movement of the movable element by power, and a workpiece holding part that holds the workpiece. The workpiece holding part includes a holding shaft having a length in a direction along a direction of the forward/backward movement of the movable element and holds the workpiece in such a manner the workpiece is suspended on the holding shaft while the holding shaft is inserted in a hole in the workpiece. The workpiece holding part allows the workpiece to move in parallel along the holding shaft to change a position of the workpiece and to rotate to change a posture of the workpiece when the movable element is brought into contact with the workpiece.
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公开(公告)号:US20230304784A1
公开(公告)日:2023-09-28
申请号:US18124918
申请日:2023-03-22
Applicant: MITUTOYO CORPORATION
Inventor: Masashi YAMAJI
IPC: G01B5/12
CPC classification number: G01B5/12
Abstract: There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.
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公开(公告)号:US20250076021A1
公开(公告)日:2025-03-06
申请号:US18820519
申请日:2024-08-30
Applicant: MITUTOYO CORPORATION
Inventor: Masashi YAMAJI , Chihiro YAMAMOTO , Keita OGAWA , Shuji HAYASHIDA
Abstract: There is provided an automatic measuring apparatus that automates an inexpensive and easy-to-use contact-type measuring device. An automatic measuring apparatus includes a measuring device including a movable element that is displaceable with respect to a fixed element and moves forward and backward to be brought into contact with or away from a workpiece, and a displacement detection part that detects a displacement or position of the movable element, and an automatic operation part that automates the forward/backward movement of the movable element by power. When the movable element is brought into contact with the workpiece, vibration is applied directly or indirectly to at least one of the workpiece and the measuring device in such a manner that contacting surfaces of the workpiece and the measuring device are in close contact with each other by changing a relative position and posture between the workpiece and the measuring device.
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公开(公告)号:US20240035816A1
公开(公告)日:2024-02-01
申请号:US18226968
申请日:2023-07-27
Applicant: MITUTOYO CORPORATION
Inventor: Keita OGAWA , Shuji HAYASHIDA , Masashi YAMAJI
CPC classification number: G01B21/047 , G01B3/18 , G01B3/008
Abstract: An automatic measuring device includes a micrometer including a spindle that moves forward and backward to be brought into contact with or away from a workpiece and a displacement detector unit that detects displacement of the spindle, and an automatic operation unit that automates the forward and backward movement of the spindle by power. The automatic operation unit performs a first forward-movement step of moving the spindle forward to bring the spindle into contact with the workpiece, and a contact determination step of determining the contact between the spindle and the workpiece in the first forward-movement step. In the contact determination step, the spindle is determined to be in contact with the workpiece when a change in a position of the spindle detected by the displacement detector unit in the first forward-movement step becomes equal to or less than a predetermined contact determination threshold.
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公开(公告)号:US20230324161A1
公开(公告)日:2023-10-12
申请号:US18124928
申请日:2023-03-22
Applicant: MITUTOYO CORPORATION
Inventor: Masashi YAMAJI , Yuhei TAKATSU , Chihiro YAMAMOTO
CPC classification number: G01B5/12 , B25J13/081
Abstract: There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.
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