公开(公告)号：US10724840B2

公开(公告)日：2020-07-28

申请号：US15819274

申请日：2017-11-21

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiromi Deguchi

IPC: G01B5/008 ,  G01B21/04 ,  G05B19/401 ,  G05B19/04

Abstract: A scanning path is divided after every predetermined number of segments and a set of measurement commands is defined for each of the predetermined number of segments. While executing the measurement command, a speed pattern plan is created for the following measurement command. At this time, planning is conducted such that a final speed of a speed pattern plan of the measurement command is the same as an initial speed of the speed pattern plan of the following measurement command. While executing the measurement command, a gap time (from a current time to an estimated end time of the measurement command) is calculated continuously. When the gap time is longer than a planning calculation time, the initial speed of the speed pattern plan of the following measurement command is kept the same as the final speed of the speed pattern plan of the measurement command.

公开(公告)号：US10379520B2

公开(公告)日：2019-08-13

申请号：US15271824

申请日：2016-09-21

Applicant: Mitutoyo Corporation

Inventor： Takashi Noda ,  Hiromi Deguchi ,  Norihiko Murata

IPC: G01B5/008 ,  G01B7/008 ,  G06F17/16 ,  G05B19/401

Abstract: There is provided a method for controlling a shape measuring apparatus which can achieve both trajectory correcting capability and control stability. A stylus tip is moved along a scanning path while controlling the stylus tip so as to keep an amount of deflection of a probe to a workpiece to be a reference amount of deflection. A movement instruction for the probe is generated according to a combined velocity vector V represented by the following expression: combined velocity vector V=Gf·Vf+Ge·Ve+Gc·Vc2, where Vf is a path velocity vector to move the probe along the scanning path, Ve is a deflection correcting vector to keep the amount of deflection of the probe to the workpiece to be the reference amount of deflection, Vc2 is a second trajectory correcting vector represented by (Vc1·q)q, Vc1 is a first trajectory correcting vector to correct a position of the probe so that the stylus tip heads to the scanning path, and q is a trajectory correcting direction vector given by a vector product of a normal line of a surface of the workpiece and the path velocity vector Vf.

公开(公告)号：US20190078865A1

公开(公告)日：2019-03-14

申请号：US16123867

申请日：2018-09-06

Applicant: Mitutoyo Corporation

Inventor： Takashi Noda

IPC: G01B5/008

Abstract: There is provide a method for controlling a shape measuring apparatus that synchronize an acceleration/deceleration changing timing of a velocity pattern with a control sampling cycle, and prevents a control lag.Based on a shape of a movement path set based on preliminarily-obtained shape data of an object to be measured, a velocity pattern for a probe to move along the movement path.It is determined whether a velocity changing timing of the velocity pattern is synchronized with a control sampling cycle of a shape measuring apparatus.When the velocity changing timing of the velocity pattern is not synchronized with the control sampling cycle, the velocity pattern is corrected such that the velocity changing timing of the velocity pattern is synchronized with the control sampling cycle of the shape measuring apparatus.

公开(公告)号：US09448052B2

公开(公告)日：2016-09-20

申请号：US13941880

申请日：2013-07-15

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiromi Deguchi

IPC: G05B11/01 ,  G01B5/20 ,  G01B21/20 ,  G06F17/40 ,  G06F19/00 ,  G01B5/008 ,  G01B21/04

CPC classification number: G01B5/008 ,  G01B5/20 ,  G01B21/042 ,  G01B21/20 ,  G05B11/01 ,  G06F17/40 ,  G06F19/00

Abstract: A control method of a shape measuring apparatus divides a curve indicating a movement path of a probe into a plurality of sections. A measurement target section is selected from the plurality of sections sequentially from a starting point side of the curve indicating the movement path of the probe. A first curvature radius is calculated from a curvature of the measurement target section. A second curvature radius is calculated according to an angle between a first straight line connecting a starting point to an ending point of the measurement target section and a second straight line connecting a starting point to an ending point of a section next to the measurement target section. A smaller value from among the first curvature radius and the second curvature radius is set as an effective radius. A maximum speed of probe movement increasing according to an increase in the effective radius is calculated for the measurement target section.

Abstract translation: 形状测量装置的控制方法将指示探针的移动路径的曲线分成多个部分。 从指示探针的移动路径的曲线的起始点依次从多个部分中选择测量对象部分。 从测量对象部分的曲率计算第一曲率半径。 根据连接起始点到测量对象部分的终点的第一直线与将测量目标部分的下一个部分的起点连接到终点的第二直线来计算第二曲率半径 。 将第一曲率半径和第二曲率半径之间的较小值设定为有效半径。 针对测量目标部分计算探头移动的最大速度根据有效半径的增加而增加。

公开(公告)号：US09335143B2

公开(公告)日：2016-05-10

申请号：US14464224

申请日：2014-08-20

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiroshi Kamitani ,  Tomohiro Usui

IPC: G01B5/012 ,  G01C25/00 ,  G01B21/04 ,  G01B5/008

CPC classification number: G01B5/012 ,  G01B5/008 ,  G01B21/042 ,  G01C25/00

Abstract: A form measuring apparatus includes a probe for measuring a measured object; a rotary table on which the measured object is placed; and a coordinate system calculator calculating coordinate axes configuring a coordinate system for the rotary table. The coordinate system calculator calculates, based on a position of a master ball fixated to the rotary table, a center of a circle traced by the master ball when the rotary table is rotated; calculates a rotary table coordinate system having the center of the circle as an origin point; and corrects coordinates of the origin point based on a calibrated diameter value of a gauge fixated to the rotary table, a first diameter value of the gauge measured by a first measurement in which the probe approaches the gauge in a first direction, and a second diameter value of the gauge measured by a second measurement.

Abstract translation: 一种形状测量装置，包括用于测量被测物体的探针; 放置测量对象的旋转台; 以及坐标系计算器，计算构成旋转台的坐标系的坐标轴。 坐标系计算器基于旋转台上固定的主球的位置，计算旋转台旋转时由主球跟踪的圆的中心; 计算以圆的中心为起点的旋转台坐标系; 并且基于固定到所述旋转台的所述校准直径值来校正所述原点的坐标，所述量规的第一直径值是通过所述探针在第一测量中测量的，其中所述探针在第一方向上接近所述量规，并且所述第二直径 通过第二次测量测量的量规的值。

公开(公告)号：US10746523B2

公开(公告)日：2020-08-18

申请号：US16123970

申请日：2018-09-06

Applicant: Mitutoyo Corporation

Inventor： Takashi Noda

IPC: G01B5/008 ,  G05B19/402

Abstract: There is provide a method for controlling a shape measuring apparatus that synchronize an acceleration/deceleration changing timing of a velocity pattern with a control sampling cycle, and prevents a control lag.Based on a shape of a movement path set based on preliminarily-obtained shape data of an object to be measured, a velocity pattern for a probe to move along the movement path.It is determined whether a velocity changing timing of the velocity pattern is synchronized with a control sampling cycle of a shape measuring apparatus.When the velocity changing timing of the velocity pattern is not synchronized with the control sampling cycle, the velocity pattern is corrected such that the velocity changing timing of the velocity pattern is synchronized with the control sampling cycle of the shape measuring apparatus.

公开(公告)号：US09964392B2

公开(公告)日：2018-05-08

申请号：US15275985

申请日：2016-09-26

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiromi Deguchi

IPC: G01B5/008 ,  G01B5/012 ,  G01B5/20 ,  G01B21/04

CPC classification number: G01B5/012 ,  G01B5/20 ,  G01B21/04

Abstract: During a retraction where a stylus tip separates from a work piece from a state where the stylus tip and the work piece are in contact, whether there is contact between the stylus tip and the work piece is monitored. When the contact between the stylus tip and the work piece is detected during the retraction, a probe is displaced to a position where the stylus tip does not come in contact with the work piece and a recovery process is executed. When a distance between a point on a surface of the work piece at a retraction start point and a contact point between the stylus tip and the work piece is Lm, and a value defined by (Lm−d) multiplied by a coefficient k (0

公开(公告)号：US09366522B2

公开(公告)日：2016-06-14

申请号：US14554608

申请日：2014-11-26

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiromi Deguchi ,  Shoichi Todaka

IPC: G01B5/008 ,  G01B5/20 ,  G01B21/04

CPC classification number: G01B5/20 ,  G01B5/008 ,  G01B21/04

Abstract: Stylus head displacer displaces a stylus head on a first measurement path. A path definer defines the first measurement path. A displacement controller controls the stylus head displacer such that the stylus head displaces along the first measurement path. A position detector detects a position of the stylus head. A depression amount detector detects the depression amount of the stylus head. A measurement results memory stores the position and amount of depression of the stylus head. The depression amount detector outputs an error signal when detecting a measurement error. The displacement controller stops displacement of the stylus head in response to the error signal and displaces the stylus head to a starting point of the first measurement path, and controls the stylus head displacer such that the stylus head is displaced from the starting point to an end point of the first measurement path with a fixed depression amount.

Abstract translation: 触针头置换器置换第一测量路径上的触针头。 路径定义器定义第一测量路径。 位移控制器控制触针头置换器，使得触针头沿着第一测量路径移位。 位置检测器检测触针头的位置。 抑制量检测器检测触针头的凹陷量。 测量结果存储器存储触控头的凹陷的位置和量。 当检测到测量误差时，抑制量检测器输出错误信号。 位移控制器响应于误差信号停止触针头的位移，并将触针头移动到第一测量路径的起点，并且控制触笔头置换器，使得触针头从起始点移动到末端 具有固定下压量的第一测量路径的点。

公开(公告)号：US09103648B2

公开(公告)日：2015-08-11

申请号：US13836006

申请日：2013-03-15

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiroshi Kamitani ,  Naoya Kikuchi

IPC: G01B5/008 ,  G01B5/20 ,  G01B21/04 ,  G05B19/4093

CPC classification number: G01B5/008 ,  G01B5/202 ,  G01B21/04 ,  G05B19/40931 ,  Y02P90/265

Abstract: A controller of a profile measuring instrument includes: an information acquirer that acquires profile information on a profile of a workpiece and a probe command unit that calculates a probe command value for moving the probe by a movement mechanism based on the profile information acquired by the information acquirer. The probe command value is a value for causing a movement of the stylus tip along a lateral face of an imaginary cone that is imaginarily defined in accordance with the profile of the workpiece based on the profile information, the movement of the stylus tip being performed while a distance between a center of the stylus tip and a reference axis passing through a center of a bottom face of the imaginary cone and parallel to the lateral face of the imaginary cone is kept constant.

Abstract translation: 轮廓测量仪的控制器包括：信息获取器，其获取关于工件轮廓的轮廓信息和探测命令单元，所述探测命令单元基于由所述信息获取的轮廓信息计算用于通过移动机构移动所述探针的探测命令值 收购。 探针指令值是用于使得触针尖端沿着假想锥体的侧面移动的值，该虚拟圆锥体根据工件的轮廓而被想象地定义，基于轮廓信息，触针尖端的运动同时执行 触针尖端的中心与通过假想锥体的底面的中心并且平行于假想锥体的侧面的基准轴之间的距离保持恒定。

公开(公告)号：US20130283627A1

公开(公告)日：2013-10-31

申请号：US13836006

申请日：2013-03-15

Applicant: MITUTOYO CORPORATION

Inventor： Takashi Noda ,  Hiroshi Kamitani ,  Naoya Kikuchi

IPC: G01B5/008

CPC classification number: G01B5/008 ,  G01B5/202 ,  G01B21/04 ,  G05B19/40931 ,  Y02P90/265

Abstract: A controller of a profile measuring instrument includes: an information acquirer that acquires profile information on a profile of a workpiece and a probe command unit that calculates a probe command value for moving the probe by a movement mechanism based on the profile information acquired by the information acquirer. The probe command value is a value for causing a movement of the stylus tip along a lateral face of an imaginary cone that is imaginarily defined in accordance with the profile of the workpiece based on the profile information, the movement of the stylus tip being performed while a distance between a center of the stylus tip and a reference axis passing through a center of a bottom face of the imaginary cone and parallel to the lateral face of the imaginary cone is kept constant.

Abstract translation: 轮廓测量仪的控制器包括：信息获取器，其获取关于工件轮廓的轮廓信息和探测命令单元，所述探测命令单元基于由所述信息获取的轮廓信息计算用于通过移动机构移动所述探针的探测命令值 收购。 探针指令值是用于使得触针尖端沿着假想锥体的侧面移动的值，该虚拟圆锥体根据工件的轮廓而被想象地定义，基于轮廓信息，触针尖端的运动同时执行 触针尖端的中心与通过假想锥体的底面的中心并且平行于假想锥体的侧面的基准轴之间的距离保持恒定。