公开(公告)号：US20160144474A1

公开(公告)日：2016-05-26

申请号：US14582640

申请日：2014-12-24

Applicant: Industrial Technology Research Institute

Inventor： Tsung-Ling Hwang ,  Tzuo-Liang Luo ,  Chin-Te Lin ,  Shuo-Peng Liang ,  Ta-Jen Peng

IPC: B23Q15/12 ,  G05B19/404

CPC classification number: B23Q15/12 ,  G05B19/404 ,  G05B2219/37337 ,  G05B2219/41256 ,  G05B2219/49105

Abstract: A feedback control numerical machine tool and a method thereof are provided. The machine tool includes at least two spindles, an acoustic frequency detecting module, at least two spindle position detecting modules, and a control module. The spindles machine a workpiece. The acoustic frequency detecting module detects an acoustic frequency of the spindles when machining the workpiece. The spindle position detecting modules detects position information of the spindles when machining the workpiece. The control module acquires the acoustic frequency and the position information of the spindles, monitors whether any of the spindles chatters according to the acoustic frequency of the spindles, and performs chattering avoidance to the spindle that chatters according to the position information of the spindles. As such, the present disclosure performs chattering monitoring to a plurality of spindles and avoids the chattering immediately.

Abstract translation: 提供了一种反馈控制数字机床及其方法。 机床包括至少两个主轴，声频检测模块，至少两个主轴位置检测模块和控制模块。 主轴加工一个工件。 在加工工件时，声频检测模块检测心轴的声频。 主轴位置检测模块在加工工件时检测主轴的位置信息。 控制模块获取主轴的声频和位置信息，监视根据心轴的声频是否有任何心轴颤动，并根据心轴的位置信息对主轴进行抖动回避。 因此，本公开对多个锭子进行抖动监视，并且避免立即颤动。

公开(公告)号：US09305326B2

公开(公告)日：2016-04-05

申请号：US14141191

申请日：2013-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Tsung-Ling Hwang ,  Shau-Yin Tseng ,  Tai-Hua Lu

IPC: G06T15/00 ,  G06T1/20

CPC classification number: G06T1/20 ,  G06T15/005

Abstract: An exemplary embodiment describes a method for tile elimination, including: reading in data of a new tile; reading signature values corresponding to the new tile from a signature value repository; generating signature values for the new tile; comparing the read signature values and the generated signature values of the same tile to determine whether the two sets of signature values being identical; when the two sets of signature values being identical, copying the new tile directly from a tile frame buffer without rendering; otherwise, updating the signature value repository with the generated signature values replacing the stored signature values; rendering the tile; and updating the tile frame buffer with the newly rendered tile.

Abstract translation: 示例性实施例描述了一种用于瓦片消除的方法，包括：读取新瓦片的数据; 从签名值库读取对应于新瓦片的签名值; 生成新图块的签名值; 比较读取的签名值和生成的相同瓦片的签名值，以确定两组签名值是否相同; 当两组签名值相同时，直接从瓦片帧缓冲区复制新瓦片而不呈现; 否则，用所生成的签名值更新所述签名值库，以代替所存储的签名值; 渲染瓷砖; 以及用新渲染的瓦片更新瓦片帧缓冲器。

公开(公告)号：US09956661B2

公开(公告)日：2018-05-01

申请号：US14582640

申请日：2014-12-24

Applicant: Industrial Technology Research Institute

Inventor： Tsung-Ling Hwang ,  Tzuo-Liang Luo ,  Chin-Te Lin ,  Shuo-Peng Liang ,  Ta-Jen Peng

IPC: G06F19/00 ,  B23Q15/12 ,  G05B19/404

CPC classification number: B23Q15/12 ,  G05B19/404 ,  G05B2219/37337 ,  G05B2219/41256 ,  G05B2219/49105

Abstract: A feedback control numerical machine tool and a method thereof are provided. The machine tool includes at least two spindles, an acoustic frequency detecting module, at least two spindle position detecting modules, and a control module. The spindles machine a workpiece. The acoustic frequency detecting module detects an acoustic frequency of the spindles when machining the workpiece. The spindle position detecting modules detects position information of the spindles when machining the workpiece. The control module acquires the acoustic frequency and the position information of the spindles, monitors whether any of the spindles chatters according to the acoustic frequency of the spindles, and performs chattering avoidance to the spindle that chatters according to the position information of the spindles. As such, the present disclosure performs chattering monitoring to a plurality of spindles and avoids the chattering immediately.

公开(公告)号：US09833868B2

公开(公告)日：2017-12-05

申请号：US14971438

申请日：2015-12-16

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Tsung-Ling Hwang ,  Chin-Te Lin ,  Shuo-Peng Liang ,  Ta-Jen Peng ,  Jen-Ji Wang ,  Tzuo-Liang Luo

IPC: B23Q17/09 ,  G05B19/404

CPC classification number: B23Q17/0976 ,  G05B19/404 ,  G05B2219/31407 ,  G05B2219/41115 ,  G05B2219/41256 ,  G05B2219/49075

Abstract: 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.