公开(公告)号：US10001358B2

公开(公告)日：2018-06-19

申请号：US15281326

申请日：2016-09-30

Applicant: MITUTOYO CORPORATION

Inventor： Kazuhiko Hidaka ,  Nobuyuki Hama ,  Tatsuki Nakayama ,  Sadayuki Matsumiya

IPC: G01B5/008 ,  G01B5/012 ,  G01B5/20

CPC classification number: G01B5/012 ,  G01B5/204

Abstract: A measuring probe for measuring a screw groove of a relatively rotatable ball screw includes a stylus having a tip end portion configured to contact the screw groove, a radial-direction displacement mechanism configured to support the stylus so as for the stylus to be displaceable in an X direction toward an axial center of the ball screw, an axial-direction displacement mechanism configured to support the stylus so as for the stylus to be displaceable in an axial direction (Z direction) of the axial center, and sensors configured to detect displacement of the stylus produced by the radial-direction displacement mechanism and the axial-direction displacement mechanism. This enables high-accuracy measurement of a predetermined position of a side surface of a relatively rotatable work.

公开(公告)号：US20180340798A1

公开(公告)日：2018-11-29

申请号：US15981395

申请日：2018-05-16

Applicant: Mitutoyo Corporation

Inventor： Toshihiko Kajihara ,  Nobuyuki Hama ,  Tatsuki Nakayama ,  Toshihiro Kanematsu ,  Hiroomi Honda

IPC: G01D5/34 ,  G01B5/28

CPC classification number: G01D5/342 ,  G01B5/28

Abstract: There is provided a surface texture measuring apparatus in which a measurement device is replaced easily and safely.A measurement device is replaceable by attaching and detaching the measurement device to and from a drive mechanism part. The measurement device includes a bracket, and the bracket includes a first connector for transmitting and receiving a signal to and from the measurement device and feeding to the measurement device. The drive mechanism part includes a support frame to which the bracket is detachably attached, and the support frame includes a second connector electrically connected to the first connector. The signal is transmitted and received between the first connector and the second connector, and the first connector is fed from the second connector while the first connector and the second connector are connected. Insertion and removal between the first connector and the second connector to attach and detach the measurement device to and from the drive mechanism part is hot swappable.

公开(公告)号：US10514244B2

公开(公告)日：2019-12-24

申请号：US15689370

申请日：2017-08-29

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama ,  Yoshiyuki Omori

IPC: G01B5/20 ,  G01B7/28 ,  G01B21/20

Abstract: A roundness measuring machine includes: a base; a table rotatable relative to the base; a probe configured to scan a surface of a workpiece mounted on the table; a motor configured to rotate the table; and a control device configured to control a rotation of the motor. The control device includes: a starting current detector configured to detect a starting current of the motor; and an acceleration/deceleration time setting unit configured to detect at least one of acceleration time and deceleration time for the motor in accordance with the starting current. The roundness measuring machine can suitably set the acceleration time and the deceleration time for the motor corresponding to the inertia moment of the workpiece mounted on the table.

公开(公告)号：US10323921B2

公开(公告)日：2019-06-18

申请号：US15664273

申请日：2017-07-31

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama ,  Kazushige Ishibashi

IPC: G01B5/20

Abstract: A roundness measuring device including: an angle detector detecting a current rotation angle of a table relative to an X axis direction; a joystick (external operator) issuing an instruction for an operation amount of a rotation axis line of the table; a centering controller calculating a CX axis displacement amount and a CY axis displacement amount from the operation amount and the rotation angle, and displacing a CX axis displacement mechanism and CY axis displacement mechanism based on the calculated CX axis displacement amount and CY axis displacement amount; and a centering controller calculating an LX axis tilt amount and an LY axis tilt amount from the operation amount and the rotation angle, and displacing an LX axis tilt mechanism and LY axis tilt mechanism based on the calculated LX axis tilt amount and LY axis tilt amount.

公开(公告)号：US09803968B2

公开(公告)日：2017-10-31

申请号：US14847181

申请日：2015-09-08

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama

IPC: G01B5/20

CPC classification number: G01B5/201

Abstract: A roundness measurement device provides a rotation table on a base and measures roundness of a measured object placed on the rotation table while rotating the rotation table, and includes a detecting main body, a detecting device driving mechanism, a stylus, a contact member, and a control device. The detecting device driving mechanism displaces the detecting device main body with respect to the base. The stylus has a base end rotatably supported on the detecting device main body and can change an angle position with respect to the detecting device main body using an external force. The contact member is provided at a position where the stylus comes in contact due to displacement of the detecting device main body by the detecting device driving mechanism. The control device controls driving of the detecting device driving mechanism.

公开(公告)号：US09091521B2

公开(公告)日：2015-07-28

申请号：US13657198

申请日：2012-10-22

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama ,  Minoru Katayama

IPC: G01B5/28 ,  G01B3/00 ,  G01B7/34

CPC classification number: G01B3/008 ,  G01B5/28 ,  G01B7/34

Abstract: Surface texture measuring apparatus includes a measurement arm table storing mass of an entire measurement arm, an arm length from a supporting point to a stylus, and a horizontal and vertical barycenter of the measurement arm in a horizontal posture for each type of the measurement arm in which a second measurement arm having a different mass is attached; a measurement arm specifier; an inclination angle detector detecting an inclination angle of the detector; and a controller reading out from the measurement arm table the mass, the arm length, the horizontal barycenter, and the vertical barycenter for a specified measurement arm, calculating a difference between a measurement force of the measurement arm in the horizontal posture and a measurement force of the measurement arm in an inclined posture based on the read-out information and the inclination angle detected by the inclination angle detector, and adjusting a measurement force.

Abstract translation: 表面纹理测量装置包括：测量臂表，用于将每个测量臂的每种类型的测量臂以水平姿态存储整个测量臂的质量，从支撑点到触针的臂长度以及测量臂的水平和垂直重心 连接具有不同质量的第二测量臂; 测量臂说明符; 检测器的倾斜角度的倾斜角度检测器; 以及从测量臂表读出用于指定测量臂的质量，臂长，水平重心和垂直重心的控制器，计算测量臂在水平姿势中的测量力与测量力之间的差 基于由倾斜角度检测器检测到的读出信息和倾斜角度，以倾斜姿态测量测量臂，并且调节测量力。

公开(公告)号：US11193749B2

公开(公告)日：2021-12-07

申请号：US16655811

申请日：2019-10-17

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama

IPC: G01B5/28 ,  G01B5/20

Abstract: The present disclosure uses a surface property measuring device that includes an arm swingably supported so as to displace a stylus vertically, and an arm lifter that holds the stylus at a predetermined height by rotating the arm. After arranging the arm lifter in a state where the arm can be held at a lower limit height that is only a predetermined drop amount below a predetermined measurement height, the arm is arranged at the measurement height and the stylus contacts a measured object, and in this state surface properties of the measured object are measured.

公开(公告)号：US11085752B2

公开(公告)日：2021-08-10

申请号：US16593277

申请日：2019-10-04

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama

IPC: G01B5/28 ,  G01B5/00 ,  G01B3/00

Abstract: A surface property measuring device includes a measuring arm that is supported so as to be capable of circular arced movement, a stylus that is provided to a distal end of the measuring arm, a position change detector that detects a change in position of the measuring arm, and a measurement force applier (voice coil motor) that biases the measuring arm in a circular arced movement direction and applies a measurement force. A control device includes a central controller that outputs a measurement force instruction that issues an instruction for an orientation and size of the measurement force, and a measurement force controller that controls the orientation and size of the measurement force produced by the measurement force applier. The measurement force controller monitors a position change detection, and when a position change speed of the measuring arm exceeds a predetermined threshold value, applies feedback.

公开(公告)号：US10584981B2

公开(公告)日：2020-03-10

申请号：US15981395

申请日：2018-05-16

Applicant: Mitutoyo Corporation

Inventor： Toshihiko Kajihara ,  Nobuyuki Hama ,  Tatsuki Nakayama ,  Toshihiro Kanematsu ,  Hiroomi Honda

IPC: G01D5/34 ,  G01B5/28

Abstract: There is provided a surface texture measuring apparatus in which a measurement device is replaced easily and safely.A measurement device is replaceable by attaching and detaching the measurement device to and from a drive mechanism part. The measurement device includes a bracket, and the bracket includes a first connector for transmitting and receiving a signal to and from the measurement device and feeding to the measurement device. The drive mechanism part includes a support frame to which the bracket is detachably attached, and the support frame includes a second connector electrically connected to the first connector. The signal is transmitted and received between the first connector and the second connector, and the first connector is fed from the second connector while the first connector and the second connector are connected. Insertion and removal between the first connector and the second connector to attach and detach the measurement device to and from the drive mechanism part is hot swappable.

公开(公告)号：US09921044B2

公开(公告)日：2018-03-20

申请号：US14264416

申请日：2014-04-29

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki Nakayama

IPC: G01B5/28 ,  G01B21/04 ,  G01B3/00 ,  G01B5/20

CPC classification number: G01B5/28 ,  G01B3/002 ,  G01B3/008 ,  G01B5/20 ,  G01B5/201 ,  G01B21/04 ,  G01B21/047

Abstract: A surface property measuring apparatus includes a control unit, configured to control operations of a roughness measuring instrument and a relative moving mechanism, including: a measuring force command module configured to output a measuring command; and a measuring force control module configured to control the direction and magnitude of the measuring force, wherein the measuring force control module instructs a measuring force application unit of the roughness measuring instrument to generate therein the measuring force whose magnitude and direction are designated by the measuring force command when a displacement speed of a measuring arm is equal to or slower than a predetermined threshold, and the measuring force control module instructs the measuring force application unit to generate therein a force in a direction in which the distal end of the measuring arm is raised upwards when the displacement speed of the measuring arm exceeds the predetermined threshold.