公开(公告)号：US12214462B2

公开(公告)日：2025-02-04

申请号：US17241479

申请日：2021-04-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chun-Yu Tsai ,  Chi-Chen Lin ,  Sheng-Ming Ma ,  Ta-Jen Peng

IPC: B23Q17/12 ,  B23Q17/09 ,  G01B17/08 ,  G05B19/18 ,  G05B19/4063 ,  G06N20/00

Abstract: A monitoring method and a monitoring system for a machine tool to machine a workpiece are provided. The monitoring method includes the following steps. First, a vibration signal of a spindle of the machine tool is detected. Next, a vibration feature value of the vibration signal is obtained. Whether the vibration feature value exceeds a threshold condition is determined, wherein the threshold condition is determined by a training model based on a predetermined surface quality of the workpiece. When the vibration feature value exceeds the threshold condition, a machining parameter of the machine tool is adjusted.

公开(公告)号：US12045031B2

公开(公告)日：2024-07-23

申请号：US17684666

申请日：2022-03-02

Applicant: Industrial Technology Research Institute

Inventor： Chia-Chin Chuang ,  Chin-Ming Chen ,  Chun-Yu Tsai ,  Chi-Chen Lin ,  Chung-Kai Wu

IPC: G05B99/00 ,  B23Q17/20 ,  B23Q23/00 ,  G05B19/404 ,  G05B19/418

CPC classification number: G05B19/404 ,  B23Q17/20 ,  B23Q23/00 ,  G05B19/41885 ,  G05B2219/49219

Abstract: A thermal compensation system for machine tools includes a thermal compensation-monitoring device and a cloud processing device. The thermal compensation-monitoring device receives a plurality of temperature signals of a workpiece and corresponding processing tolerance data to build or update a thermal compensation database. The cloud processing device provides a thermal compensation model, and applies the model with the characterized temperature signals and the tolerance data to generate a compensation value so as to decide whether or not to modify the model or to run a compensation is necessary.

公开(公告)号：US12228906B2

公开(公告)日：2025-02-18

申请号：US17719133

申请日：2022-04-12

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chung-Kai Wu ,  Chin-Ming Chen ,  Chun-Yu Tsai ,  Chi-Chen Lin ,  Chia-Chin Chuang ,  Ta-Jen Peng

IPC: G05B19/401 ,  B23Q17/22 ,  G05B19/408

Abstract: A calibration method for machine tools comprises: providing a workpiece on a machine tool; rotating the workpiece around a first rotation axis parallel to a main shaft of the machine tool and processing the workpiece by a first machining mode; measuring a first dimensional error of a shape of the workpiece along directions of first and second linear axes perpendicular to the first rotation axis; calculating a positional error of the first rotation axis according to the first dimensional error; rotating the workpiece around a second rotation axis perpendicular to the main shaft and processing the workpiece by a different second machining mode; measuring a second dimensional error of the shape of the workpiece along a direction of a third linear axis perpendicular to the second rotation axis; calculating a positional error of the second rotation axis according to the second dimensional error.