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公开(公告)号：US10415949B2
公开(公告)日：2019-09-17
申请号：US15440280
申请日：2017-02-23
Applicant: MITUTOYO CORPORATION
Inventor： Satoshi Koga , Akinori Saito , Hiroyuki Kanamori , Yutaka Kuriyama , Nobuhiro Ishikawa
Abstract: A measuring probe includes two supporting members, each having a rotationally symmetric shape and allowing for an attitude change of a stylus, in an axial direction of a probe housing. Four detection elements are disposed at fourfold symmetric positions in one of the two supporting members that includes four deformable arm parts. A signal processing circuit includes a first processing part that processes outputs of the detection elements to output three displacement signals representing displacement components of a contact part in mutually perpendicular three directions, respectively. The measuring probe capable of reducing measurement directional dependency of sensitivity with a simple configuration while maintaining high sensitivity is thus provided.
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公开(公告)号：US10393495B2
公开(公告)日：2019-08-27
申请号：US15440440
申请日：2017-02-23
Applicant: MITUTOYO CORPORATION
Inventor： Satoshi Koga , Akinori Saito , Hiroyuki Kanamori , Yutaka Kuriyama , Nobuhiro Ishikawa
Abstract: A measuring probe includes: a stylus having a contact part to be brought into contact with an object to be measured; a probe housing capable of supporting the stylus on an axial center; and a detection element capable of detecting a movement of the contact part. The measuring probe further includes: two supporting members disposed in an axial direction of the probe housing, the supporting member allowing for an attitude change of the stylus; and a coupling shaft for coupling the two supporting members together. The detection element is disposed in one of the two supporting members that is farthest away from a rotational center position of rotation generated in the stylus when a measuring force is applied to the contact part from a direction perpendicular to the axial direction, to detect a strain amount of the one of the two supporting members.
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Patent Agency Ranking
公开(公告)号：US20160018215A1
公开(公告)日：2016-01-21
申请号：US14800110
申请日：2015-07-15
Applicant: MITUTOYO CORPORATION
Inventor： Takeshi Hagino , Yuichiro Yokoyama , Yutaka Kuriyama
Abstract: In a spherical shape measurement method for measuring a surface shape, a sphere to be measured is made freely rotatable. The partial spherical shape of each measurement area, which is established so as to have an area overlapping with another measurement area adjacent to each other, is measured at each rotation position, and the surface shape is measured by joining the partial spherical shapes of the measurement areas by a stitching operation based on the shape of the overlapping area. In the state of detaching the sphere from the sphere hold mechanism to which the sphere is freely attachable and detachable, the sphere support table holds the sphere. The sphere is re-held at a different position, so that the shape of the entire sphere can be measured with high accuracy.
Abstract translation: 在用于测量表面形状的球形测量方法中，可以使待测球体自由旋转。 在每个旋转位置测量每个测量区域的局部球形，其被建立为具有与彼此相邻的另一测量区域重叠的区域，并且通过将测量的部分球形形状 基于重叠区域的形状的缝合操作的区域。 在从球体保持机构分离球体的状态下，球体可自由地附接和分离，球支撑台保持球体。 球体被重新保持在不同的位置，从而可以高精度地测量整个球体的形状。
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公开(公告)号：US20140130363A1
公开(公告)日：2014-05-15
申请号：US14079782
申请日：2013-11-14
Applicant: Mitutoyo Corporation
Inventor： Takeshi Hagino , Yuichiro Yokoyama , Yutaka Kuriyama
IPC: G01B5/22
CPC classification number: G01B5/22 , G01B5/0004 , G01B5/201
Abstract: A spherical-form measuring apparatus includes a turntable 5, a holding unit 10 for holding the sphere 20, and a probe 6 for measuring a contour of a sphere part 22 of the sphere 20. The holding unit 10 includes a base part 12, a vertical holding part 14 and an inclined holding part 16 which are placed at separate positions on the base part 12. The vertical holding part 14 holds the stem part 24 of the sphere 20 with it set in a direction perpendicular to the turntable 5. The inclined holding part 16 holds the stem part 24 with it set in a direction at an angle. The vertical and inclined holding part 14, 16 are disposed such that their axial lines meet at an intersection point P and such that the distance from the point P to the vertical holding part 14 agrees with the distance from the point P to the inclined holding part 16.
Abstract translation: 球形测量装置包括转台5，用于保持球体20的保持单元10和用于测量球体20的球体部分22的轮廓的探针6.保持单元10包括基部12， 垂直保持部14和倾斜保持部16，其设置在基部12上的分离位置。垂直保持部14将球体20的杆部24保持在与转台5垂直的方向。倾斜 保持部16将杆部24保持在一定角度的方向。 垂直倾斜保持部14,16被设置为使得它们的轴线在交点P处相交，使得从点P到垂直保持部14的距离与从点P到倾斜保持部分的距离一致 16。
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公开(公告)号：US10444008B2
公开(公告)日：2019-10-15
申请号：US14800110
申请日：2015-07-15
Applicant: MITUTOYO CORPORATION
Inventor： Takeshi Hagino , Yuichiro Yokoyama , Yutaka Kuriyama
Abstract: In a spherical shape measurement method for measuring a surface shape, a sphere to be measured is made freely rotatable. The partial spherical shape of each measurement area, which is established so as to have an area overlapping with another measurement area adjacent to each other, is measured at each rotation position, and the surface shape is measured by joining the partial spherical shapes of the measurement areas by a stitching operation based on the shape of the overlapping area. In the state of detaching the sphere from the sphere hold mechanism to which the sphere is freely attachable and detachable, the sphere support table holds the sphere. The sphere is re-held at a different position, so that the shape of the entire sphere can be measured with high accuracy.
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公开(公告)号：US10352678B2
公开(公告)日：2019-07-16
申请号：US15271593
申请日：2016-09-21
Applicant: MITUTOYO CORPORATION
Inventor： Yuichiro Yokoyama , Takeshi Hagino , Yutaka Kuriyama
Abstract: A measurement target and a reference gauge are placed in parallel in an inside of a temperature-controlled chamber. After an interior temperature of the temperature-controlled chamber is set at a first temperature, a relative measurement of a length from a first surface to a second surface of the measurement target is performed with reference to a length from a first reference surface to a second reference surface of the reference gauge. Then, the interior temperature of the temperature-controlled chamber is set at a second temperature and a relative measurement of the length from the first surface to the second surface is similarly performed with reference to the length from the first reference surface to the second reference surface. A CTE of the measurement target is calculated based on the length of the measurement target at the first temperature and the length of the measurement target at the second temperature.
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公开(公告)号：US09297631B2
公开(公告)日：2016-03-29
申请号：US14079782
申请日：2013-11-14
Applicant: Mitutoyo Corporation
Inventor： Takeshi Hagino , Yuichiro Yokoyama , Yutaka Kuriyama
CPC classification number: G01B5/22 , G01B5/0004 , G01B5/201
Abstract: A spherical-form measuring apparatus includes a turntable 5, a holding unit 10 for holding the sphere 20, and a probe 6 for measuring a contour of a sphere part 22 of the sphere 20. The holding unit 10 includes a base part 12, a vertical holding part 14 and an inclined holding part 16 which are placed at separate positions on the base part 12. The vertical holding part 14 holds the stem part 24 of the sphere 20 with it set in a direction perpendicular to the turntable 5. The inclined holding part 16 holds the stem part 24 with it set in a direction at an angle. The vertical and inclined holding part 14, 16 are disposed such that their axial lines meet at an intersection point P and such that the distance from the point P to the vertical holding part 14 agrees with the distance from the point P to the inclined holding part 16.
Abstract translation: 球形测量装置包括转台5，用于保持球体20的保持单元10和用于测量球体20的球体部分22的轮廓的探针6.保持单元10包括基部12， 垂直保持部14和倾斜保持部16，其设置在基部12上的分离位置。垂直保持部14将球体20的杆部24保持在与转台5垂直的方向。倾斜 保持部16将杆部24保持在一定角度的方向。 垂直倾斜保持部14,16被设置为使得它们的轴线在交点P处相交，使得从点P到垂直保持部14的距离与从点P到倾斜保持部分的距离一致 16。
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