MEASURING DEVICE AND METHOD
    94.
    发明公开

    公开(公告)号:US20230147278A1

    公开(公告)日:2023-05-11

    申请号:US17916759

    申请日:2021-03-24

    Applicant: RENISHAW PLC

    Inventor: Harry Alan LEAFE

    CPC classification number: G01B11/02 G01B11/08 B23Q17/2457 B23Q2717/00

    Abstract: A protection member for an optical measurement device, such as a break-beam tool setting device for a machine tool. The protection member includes a conduit through which light and air can pass. The conduit is configured such that, in use, a beam of light is passed through the conduit along an optical axis and a stream of air is guided out of the conduit along an airflow axis. The optical axis is non-parallel to the airflow axis and the conduit has a varying cross-sectional profile along the airflow axis. Improved measurement repeatability is provided.

    Yarn entanglement strength tester
    99.
    发明授权
    Yarn entanglement strength tester 有权
    纱线缠结强度试验机

    公开(公告)号:US09581531B2

    公开(公告)日:2017-02-28

    申请号:US13362861

    申请日:2012-01-31

    CPC classification number: G01N3/08 G01B11/08 G01L5/04 G01N33/365 G01N2203/028

    Abstract: A yarn entanglement strength tester includes first and second rolls that apply incrementally increasing elongation levels on a yarn in order to remove entanglements from the yarn. The yarn entanglement strength tester also includes a third roll, where the second and third rolls apply a constant tension on the yarn which enables optimum diameter measurements of the yarn by a camera. The camera captures images of diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn. The yarn entanglement strength tester further includes a computing device that controls operation of the camera and the first, second, and third rolls, and determines an entanglement strength of the yarn based on the captured images of the diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn.

    Abstract translation: 纱线缠结强度测试仪包括第一和第二辊,其对纱线施加逐渐增加的伸长率水平,以消除纱线的缠结。 纱线缠结强度测试仪还包括第三辊,其中第二和第三辊在纱线上施加恒定的张力,使得能够通过照相机对纱线进行最佳直径测量。 在对纱线施加每个递增增加的伸长率水平之后,照相机捕获纱线直径的图像。 纱线缠结强度试验机进一步包括控制摄像机和第一,第二和第三辊的操作的计算装置,并根据纱线直径的捕获图像逐个递增地确定纱线的缠结强度 对纱线施加增加的伸长率。

    TOOL SHAPE MEASUREMENT DEVICE AND TOOL SHAPE MEASUREMENT METHOD
    100.
    发明申请
    TOOL SHAPE MEASUREMENT DEVICE AND TOOL SHAPE MEASUREMENT METHOD 审中-公开
    工具形状测量装置和工具形状测量方法

    公开(公告)号:US20160318145A1

    公开(公告)日:2016-11-03

    申请号:US15108604

    申请日:2014-01-24

    Abstract: A tool shape measurement device includes: a contour detection unit that detects a tool contour from an image of a rotating tool that is taken; an axis direction calculation unit that calculates a tool axis direction that is an axis direction of the rotating tool on the basis of the tool contour; a tool diameter measurement unit that calculates an apparent tool diameter of the rotating tool on an imaging surface on the basis of a calibrated positional and postural relationship between an imaging device and the rotating tool, the tool axis direction, and the tool contour; and a tool diameter correction unit that calculates a distance between the imaging device and the rotating tool using the tool axis direction, and corrects the apparent tool diameter to an actual tool diameter by correcting distortion in the tool contour on the basis of the distance.

    Abstract translation: 一种刀具形状测量装置,包括:轮廓检测单元,其从所拍摄的旋转刀具的图像中检测刀具轮廓; 轴方向计算单元,其基于所述刀具轮廓计算作为所述旋转刀具的轴线方向的刀具轴方向; 刀具直径测量单元,其基于成像装置和旋转工具之间的校准的位置和姿态关系,工具轴线方向和工具轮廓来计算成像表面上的旋转工具的视在工具直径; 以及刀具直径校正单元,其使用刀具轴方向计算成像装置和旋转刀具之间的距离,并且通过基于该距离校正刀具轮廓的变形,将表观刀具直径校正为实际刀具直径。

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