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公开(公告)号：US20220193852A1
公开(公告)日：2022-06-23
申请号：US17241479
申请日：2021-04-27
发明人： Chun-Yu TSAI , Chi-Chen LIN , Sheng-Ming MA , Ta-Jen PENG
摘要： 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.
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公开(公告)号：US20190171176A1
公开(公告)日：2019-06-06
申请号：US15855924
申请日：2017-12-27
发明人： Sheng-Ming MA , Ta-Jen PENG , Yung-Chih LIN , Chien-Hung CHEN , Ke-Hen CHEN , Shin-Tzong SU
IPC分类号： G05B19/048 , B23Q11/00 , B23Q17/22 , G05B17/02
摘要： A thermal compensation control system for a machine tool having a milling cutter and a cutter driver includes a tool setting probe, a temperature sensor, a workpiece touch probe, and a controller. The cutter driver is connected to the milling cutter to drive the milling cutter to process the work piece based on a control signal. The tool setting probe is configured to detect a cutter length of the milling cutter. The temperature sensor is configured to sense a measured temperature of the cutter driver or the milling cutter. The workpiece touch probe is configured to measure processing errors of the processed work piece. The controller is configured to generate the control signal based on a processing instruction, a temperature compensation model, the cutter length, and the measured temperature. The controller is further configured to determine whether to modify the temperature compensation model based on the processing errors.
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公开(公告)号：US20190143511A1
公开(公告)日：2019-05-16
申请号：US15854288
申请日：2017-12-26
发明人： Chen-Yu KAI , Kai-Ming PAN , Yen-Cheng CHEN , Ta-Jen PENG
摘要： A robot arm processing system includes a robot arm, a processing module, and a control module. The robot arm is for providing a mechanical holding force. The processing module is disposed on the robot arm to process a workpiece. The control module is connected to the robot arm or the processing module. The control module outputs an anti-vibration signal according to the reaction force of the workpiece or the displacement of the robot arm to counteract the reaction force of the workpiece or the displacement of the robot arm.
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公开(公告)号：US20200171624A1
公开(公告)日：2020-06-04
申请号：US16234180
申请日：2018-12-27
发明人： Chung-Yu TAI , Qi-Zheng YANG , Ke-Hen CHEN , Ta-Jen PENG
摘要： A clamping device includes a first holder and a second holder. The first holder includes a first abutting member and a driving member. The driving member is coupled to the first abutting member. The second holder includes a second abutting member. The first abutting member and the second abutting member are oppositely disposed and spaced apart from each other to receive a workpiece. The driving member is coupled to the first abutting member to drive the first abutting member to move in a direction toward the second abutting member to clamp the workpiece between the first abutting member and the second abutting member.
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公开(公告)号：US20170100810A1
公开(公告)日：2017-04-13
申请号：US14971438
申请日：2015-12-16
发明人： Tsung-Ling HWANG , Chin-Te LIN , Shuo-Peng LIANG , Ta-Jen PENG , Jen-Ji WANG , Tzuo-Liang LUO
IPC分类号： B23Q17/09 , G05B19/404
CPC分类号： B23Q17/0976 , G05B19/404 , G05B2219/31407 , G05B2219/41115 , G05B2219/41256 , G05B2219/49075
摘要： A chatter avoidance method and device is provided, including steps of: providing a stable operating condition plot; partially removing a first layer of a workpiece with a predetermined first removal depth according to a safe removal depth of the stable operating condition plot and sensing a chatter caused by the removal operation; if no chatter is sensed, completing the removal operation, otherwise, continuing to partially remove the first layer with a second removal depth less than the predetermined first removal depth; and determining a minimum removal depth according to the removal operation, and removing a last layer of the workpiece with a last removal depth less than or equal to the minimum removal depth, allowing the workpiece to have a target thickness. The disclosure prevents a chatter from continuously occurring without requiring a shut-down and thereby maintains a desired production rate.
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公开(公告)号：US20230205164A1
公开(公告)日：2023-06-29
申请号：US17719133
申请日：2022-04-12
发明人： Chung-Kai WU , Chin-Ming CHEN , Chun-Yu TSAI , Chi-Chen LIN , Chia-Chin CHUANG , Ta-Jen PENG
IPC分类号： G05B19/401 , G05B19/408 , B23Q17/22
CPC分类号： G05B19/401 , G05B19/4086 , B23Q17/22 , G05B2219/37355 , G05B2219/37069
摘要： 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.
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7.发明申请公开(公告)号：US20210026322A1
公开(公告)日：2021-01-28
申请号：US16692904
申请日：2019-11-22
发明人： Sheng-Ming MA , Yu-Sheng LAI , Wei-Jen WU , Ta-Jen PENG , Tzuo-Liang LUO
IPC分类号： G05B19/4065 , B23Q17/09 , B23Q17/22
摘要： A detection device for a spindle of a machine tool is provided, wherein the spindle includes an insertion hole. The detection device includes a contact housing, a main housing, a sensor, and a process module. The contact housing has a first chamber, and the first chamber has an inner surface. The main housing is connected to the contact housing, and has a second chamber communicated with the first chamber. The sensor is disposed in the first chamber and connected to the inner surface. The process module is disposed in the second chamber and electrically connected to the sensor. When the contact housing is inserted into the insertion hole of the spindle, the sensor is configured to detect the deformation of the contact housing and generate a detection signal. The process module generates a determination signal according to the detection signal.
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8.发明申请公开(公告)号：US20200150630A1
公开(公告)日：2020-05-14
申请号：US16232424
申请日：2018-12-26
发明人： Chen-Hui KUO , Chen-Yu KAI , Ta-Jen PENG , Yung-Chih LIN
IPC分类号： G05B19/4155
摘要： A method for adjusting a frequency response parameter of a machine tool and a system using the same are provided. The method includes the following steps. Firstly, an actual frequency sweep is performed on the machine tool to acquire an original system closed loop data of the machine tool. Then, an original system open loop transfer function of the original system closed loop data is acquired. Then, a speed optimization procedure is executed to determine an optimized speed parameter. Then, a speed optimized open loop transfer function corresponding to a speed optimized close loop transfer function is acquired. Then, a filter transfer function of a filter is determined. Then, a filter optimization procedure is executed.
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公开(公告)号：US20180120262A1
公开(公告)日：2018-05-03
申请号：US15384228
申请日：2016-12-19
发明人： Chung-Yu TAI , Chen-Yu KAI , Ta-Jen PENG , Yi-Hsuan CHEN
CPC分类号： G01N29/041 , G01N29/07 , G01N29/2412 , G01N29/2418 , G01N2291/02827
摘要： A non-contact dynamic stiffness measurement system includes a base, a test bar, an exciter, a force sensor, a laser Doppler velocimeter, and a controller. The force sensor is connected to the exciter and the base. The exciter is located between the test bar and the force sensor. The controller is electrically connected to the force sensor and the laser Doppler velocimeter. The test bar is detachably set in a holder of the main shaft under test. The exciter provides an electromagnetic force to the test bar. The force sensor measures the acting force of the exciter. The laser Doppler velocimeter provides a first laser beam and a second laser beam. The laser Doppler velocimeter measures a vibration response with reflected laser beams. The controller determines an equivalent main shaft stiffness value of the main shaft under test according to the acting force and the vibration response.
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10.发明申请MACHINING ABNORMALITY AVOIDING SYSTEM AND MACHINING PATH MODIFICATION METHOD THEREOF 审中-公开加工异常避免系统及其加工路径修改方法公开(公告)号：US20170060116A1
公开(公告)日：2017-03-02
申请号：US14963227
申请日：2015-12-08
发明人： Shu-Chung LIAO , Ta-Jen PENG , Chin-Te LIN , Ci-Rong HUANG
IPC分类号： G05B19/402
CPC分类号： G05B19/402 , G05B2219/50058
摘要： A machining path modification method includes the following steps: analyzing the machining path of a machining program to decide whether any point of the machining path is an avoidant point; obtaining an abnormal point of the machining path; and if the abnormal point exists, modifying the machining program to add an abnormality avoidant path on the avoidant point of the machining path.
摘要翻译： 加工路径修改方法包括以下步骤：分析加工程序的加工路径，以确定加工路径的任何点是否为回避点; 获得加工路径的异常点; 如果存在异常点，则修改加工程序以在加工路径的避免点添加异常回避路径。
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