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.

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.