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    METHOD OF LOAD CHARACTERISTIC IDENTIFICATION AND ACCELERATION ADJUSTMENT FOR MACHINE TOOL
    1.
    发明申请
    METHOD OF LOAD CHARACTERISTIC IDENTIFICATION AND ACCELERATION ADJUSTMENT FOR MACHINE TOOL 审中-公开

    公开(公告)号：US20200218225A1

    公开(公告)日：2020-07-09

    申请号：US16352097

    申请日：2019-03-13

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Jheng-Jie LIN ,  Kuo-Hua CHOU ,  Chien-Chih LIAO ,  Jen-Ji WANG

    IPC: G05B19/404 ,  G05B19/406 ,  G05B19/416 ,  B23Q15/013 ,  B23Q15/12

    Abstract: A method of load characteristic identification and acceleration adjustment for a machine tool is provided. A first acceleration of a transmission system is set according to the weight of a workpiece, and the working platform and the workpiece are driven at the first acceleration. A first elastic deformation of the transmission system and an amount of first position error of the transmission system are calculated when transmission system is moved at the first acceleration. A dynamic error is calculated according to the first elastic deformation and the first position error. When the dynamic error is less than or greater than a target error, a second acceleration is set to the transmission system, and a second elastic deformation and a second position error are calculated when the transmission system moves at the second acceleration unit the dynamic error is converged to the target error.

    METHOD FOR ANALYZING OVERCUTTING DEFECT OF MACHINING PROCESS
    2.
    发明申请
    METHOD FOR ANALYZING OVERCUTTING DEFECT OF MACHINING PROCESS 有权

    公开(公告)号：US20220212304A1

    公开(公告)日：2022-07-07

    申请号：US17179093

    申请日：2021-02-18

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Chien-Chih LIAO ,  Kuo-Hua CHOU ,  Cheng-Wei WANG ,  Jen-Ji WANG

    IPC: B23Q15/24 ,  B23Q17/20 ,  B23Q17/22

    Abstract: A method for analyzing an overcutting defect of a machining process comprises steps as following. A machining code is executed to generate a cutting face, wherein the cutting face comprises a plurality of machining paths. A specified machining path is defined from the plurality of machining paths and a specified node is set on the specified machining path. A sectional plane passing through the specified node is calculated. A plurality of intersection points between the sectional plane and the other machining paths which are different from the specified machining path are obtained. A first adjacent intersection point a second adjacent intersection point are specified from the intersection points. A connection line located between the first adjacent intersection point and the second adjacent intersection point is obtained. A distance between the specified node and connection line is calculate and the distance is defined as an overcutting amount of the specified node.

    METHOD FOR INSPECTING DEFECTS OF MACHINING PATH
    3.
    发明申请
    METHOD FOR INSPECTING DEFECTS OF MACHINING PATH 有权

    公开(公告)号：US20210208565A1

    公开(公告)日：2021-07-08

    申请号：US15930949

    申请日：2020-05-13

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Cheng-Wei WANG ,  Kuo-Hua CHOU ,  Chien-Chih LIAO ,  Jen-Ji WANG

    IPC: G05B19/4069 ,  G05B19/4068 ,  G06T7/00 ,  G06T17/20

    Abstract: A method for inspecting defects of a machining path is provided. The method includes the following steps. Firstly, a contour mold with a plurality of surface nodes is generated according to a machining program code. Next, a normal vector of each surface node of the contour mold is calculated. Then, a tangent vector of a block of the machining program code corresponding to the normal vector is calculated. Afterwards, an error information is obtained according to a relation between the normal vector and the tangent vector. When the error information is greater than a predetermined value, a defect information is shown on the contour mold.

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