公开(公告)号：US11822317B2

公开(公告)日：2023-11-21

申请号：US17290600

申请日：2019-10-24

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Jochen Bretschneider

IPC分类号： G05B19/416 ,  G05B19/19

CPC分类号： G05B19/4163 ,  G05B19/19 ,  G05B2219/35032 ,  G05B2219/41115 ,  G05B2219/41256 ,  G05B2219/42077 ,  G05B2219/42344

摘要： A control device of a machine tool receives a target machining, in accordance with which a workpiece should be machined by a tool of the machine tool. The control device also receives via a human-machine interface or via an interface to an external memory device a selection, a parameterization and/or a specification of a sequence of predefined rules, which define the manner in which the machining of the workpiece should be modified in the event of undesired vibrations during machining. When undesired vibrations do not occur, as determined from acquired sensor signals, machining is carried out in accordance with the target machining. When undesired vibrations occur, the machining is modified in accordance with the rules, wherein the control device selects the rules in accordance with the selection, parameterizes the rules in accordance with the parameterization and/or carries out the rules in accordance with the specified sequence.

公开(公告)号：US20180292804A1

公开(公告)日：2018-10-11

申请号：US15525514

申请日：2017-03-20

申请人： SOLIDCAM LTD.

发明人： Michael BERMAN

IPC分类号： G05B19/404

CPC分类号： G05B19/404 ,  G05B2219/33099 ,  G05B2219/41256 ,  G05B2219/45145

摘要： A computerized method of machining a workpiece including, prior to machining the workpiece, establishing, based on empirical data obtained from machining activity at an earlier time, an historical mapping indicating pairings of depth of cut and rpm at which undesirable chatter (UDC) did not occur during machining activity at an earlier time using at least one given type of milling machine, at least one given type of cutting tool and at least one given type of workpiece material, prior to commencing machining of the workpiece, programming a machine tool to machine the workpiece using a given type of milling machine, a given type of cutting tool and a given type of workpiece material at at least one depth of cut and rpm, which, based on the historical mapping, avoid UDC and operating the machine tool in accordance with the programming to machine the workpiece.

公开(公告)号：US20180130489A1

公开(公告)日：2018-05-10

申请号：US15600865

申请日：2017-05-22

申请人： National Chung Cheng University

发明人： CHIH-CHUN CHENG ,  PING-CHUN TSAI ,  WEN-NAN CHENG ,  YU-HSIN KUO ,  YIN-CHUN CHENG ,  YU-SHENG CHIU

IPC分类号： G11B15/46 ,  G11B15/43

CPC分类号： B23Q17/0976 ,  B23Q15/12 ,  G05B19/401 ,  G05B2219/37435 ,  G05B2219/41256 ,  G05B2219/49077

摘要： A spindle speed adjusting device in machining is provided, which may include a plurality of signal detection modules, a signal capturing module and a signal processing module. Each of the signal detection modules may keep measuring the vibration signals in machining. The signal capturing module may capture the vibration signals. The signal processing module may execute a transmissibility analysis to obtain the transmissibility between the signal detection modules, and execute a frequency response fitting according to the transmissibility to obtain a plurality of system dynamic parameters, and then execute a stability lobe diagram analysis to calculate the optimized spindle speed of the machining tool so as to make the machining tool operate at the optimized spindle speed. The signal processing module may repeatedly execute the transmissibility analysis, the frequency response fitting and the stability lobe diagram analysis to keep updating the optimized spindle speed until the machining process ends.

公开(公告)号：US09588512B2

公开(公告)日：2017-03-07

申请号：US14300417

申请日：2014-06-10

申请人： DOOSAN INFRACORE CO., LTD.

发明人： Kang Jae Lee ,  Jin Suk Song

IPC分类号： G06F19/00 ,  G05B19/416 ,  G05B19/404

CPC分类号： G05B19/4163 ,  G05B19/404 ,  G05B2219/37434 ,  G05B2219/41256 ,  G05B2219/49074

摘要： Disclosed is a setting method of revolutions per minute on a real time of a rotating cutting tool, and a control device, and more particularly, a vibration characteristic is consistently evaluated and analyzed when a cutting process is in progress to suppress and avoid suppression.

摘要翻译： 公开了一种旋转切削工具的实时旋转每分钟转数的设定方法和控制装置，更具体地说，在进行切割处理以抑制并避免抑制时，一致地评价和分析振动特性。

公开(公告)号：US20120253708A1

公开(公告)日：2012-10-04

申请号：US13353596

申请日：2012-01-19

申请人： Takaaki TANAKA

发明人： Takaaki TANAKA

IPC分类号： G06F19/00

CPC分类号： B23Q11/0039 ,  B23Q17/12 ,  G05B19/404 ,  G05B2219/41256

摘要： When generation of a chatter vibration is detected, a parameter calculation device calculates a first frequency range and a second frequency range. A determination validity is calculated in consideration of a rotation speed detection resolution and a frequency resolution, and based on a ratio of a frequency range of rotational-period forced chatter vibration to a frequency range of regenerative chatter vibration. It is determined based on the determination validity whether the generated chatter vibration is regenerative chatter vibration, rotational-period forced chatter vibration, or flute-passage-period forced chatter vibration.

摘要翻译： 当检测到振动振动的产生时，参数计算装置计算第一频率范围和第二频率范围。 考虑到转速检测分辨率和频率分辨率，并且基于旋转周期强制振荡振动的频率范围与再生振动振动的频率范围的比率来计算确定有效性。 基于确定有效性来确定生成的颤振是否是再生振动振动，旋转周期强制颤振振动或长槽通过周期强制颤振振动。

公开(公告)号：US20060271231A1

公开(公告)日：2006-11-30

申请号：US11439411

申请日：2006-05-23

申请人： Nejat Olgac

发明人： Nejat Olgac

IPC分类号： B23Q11/00 ,  G06F19/00

CPC分类号： B23Q17/0976 ,  G05B19/404 ,  G05B2219/41256 ,  G05B2219/50015 ,  Y10T82/10 ,  Y10T82/2595 ,  Y10T409/303752 ,  Y10T409/304312

摘要： Systems and methods are provided for use in assessing the stability of simultaneous machining (SM) dynamics (which is also known as parallel machining). In SM, multiple cutters, which are generally driven by multiple spindles at different speeds, operate on the same work-piece. In an alternative implementation of SM, single milling cutters with non-uniformly distributed cutter flutes operate on a work-piece. When SM is optimized in the sense of maximizing the rate of metal removal constrained with or by the machined surface quality, “chatter instability” phenomenon appears. The present disclosure declares the complete stability picture of SM chatter within a mathematical framework of multiple time-delay systems (MTDS). A cluster treatment of characteristic roots (CTCR) procedure determines the regions of stability completely in the domain of the spindle speeds for varying chip thickness, thereby replicating the well-known “stability lobes” concept of STM for simultaneous machining.

摘要翻译： 提供的系统和方法用于评估同时加工（SM）动力学（也称为并行加工）的稳定性。 在SM中，通常由不同速度的多个主轴驱动的多个切割器在相同的工件上操作。 在SM的替代实施中，具有不均匀分布的切割槽的单铣刀在工件上操作。 当SM被最大限度地提高被加工表面质量受到限制的金属去除速度时，SM出现“颤动不稳定”现象。 本公开声明在多个时间延迟系统（MTDS）的数学框架内的SM抖动的完整稳定性图。 特征根（CTCR）程序的集群处理在不同芯片厚度的主轴转速范围内完全确定了稳定区域，从而复制了STM的众所周知的“稳定性波瓣”概念，用于同时加工。

公开(公告)号：US20240139896A1

公开(公告)日：2024-05-02

申请号：US18281252

申请日：2022-06-16

申请人： DMG MORI CO., LTD.

发明人： Megumi OYA ,  Junjiro ENOMOTO ,  Shimpei KODA ,  Toshitaka NAGANO

IPC分类号： B23Q17/09 ,  G05B19/404

CPC分类号： B23Q17/0976 ,  G05B19/404 ,  G05B2219/36089 ,  G05B2219/37434 ,  G05B2219/41256

摘要： A display control device includes a calculation unit for calculating a first rotating speed on the basis of a vibration level detected by a vibration detection unit when the vibration level has exceeded a predetermined value, a change receiving unit for receiving a change instruction for changing a second rotating speed that is a rotating speed when the vibration level has exceeded the predetermined value to the first rotating speed, and a display control unit for performing control to display, on an operation screen, the first rotating speed, the second rotating speed, and a ratio display unit indicating a change ratio to a third rotating speed specified by a machining program, and performing control to display the first rotating speed at a position in the ratio display unit corresponding to a change ratio of the first rotating speed to the third rotating speed.

公开(公告)号：US20160346891A1

公开(公告)日：2016-12-01

申请号：US15097533

申请日：2016-04-13

申请人： Okuma Corporation

发明人： Tomoharu ANDO

IPC分类号： B23Q17/12 ,  G05B19/404 ,  B23Q17/09

CPC分类号： G05B19/404 ,  G05B2219/37081 ,  G05B2219/41256 ,  Y02P90/265

摘要： A vibration information display device includes a monitor, a vibration information acquisition unit, an operating information acquisition unit, a storage unit, and a display control unit. The monitor displays information on the chatter vibrations. The vibration information acquisition unit acquires vibration information when the chatter vibrations are detected. The operating information acquisition unit acquires operating information of the machine tool when the chatter vibrations are detected. The storage unit stores the acquired vibration information and operating information. The display control unit displays the vibration information and the operating information stored in the storage unit on the monitor. Alternatively, the display control unit displays the vibration information stored in the storage unit on the monitor together with trajectory information of a blade edge of the tool included in the operating information.

摘要翻译： 振动信息显示装置包括监视器，振动信息获取单元，操作信息获取单元，存储单元和显示控制单元。 监视器显示有关颤振的信息。 当检测到振动振动时，振动信息获取单元获取振动信息。 当检测到颤振时，操作信息获取单元获取机床的操作信息。 存储单元存储获取的振动信息和操作信息。 显示控制单元将存储在存储单元中的振动信息和操作信息显示在监视器上。 或者，显示控制单元将存储在存储单元中的振动信息与操作信息中包括的工具的叶片边缘的轨迹信息一起显示。

公开(公告)号：US20160144474A1

公开(公告)日：2016-05-26

申请号：US14582640

申请日：2014-12-24

申请人： Industrial Technology Research Institute

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

IPC分类号： B23Q15/12 ,  G05B19/404

CPC分类号： B23Q15/12 ,  G05B19/404 ,  G05B2219/37337 ,  G05B2219/41256 ,  G05B2219/49105

摘要： 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.

摘要翻译： 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：US09138848B2

公开(公告)日：2015-09-22

申请号：US13268242

申请日：2011-10-07

申请人： Hiroshi Ueno

发明人： Hiroshi Ueno

IPC分类号： G06F19/00 ,  B23Q17/09 ,  G05B19/404

CPC分类号： B23Q17/0976 ,  G05B19/404 ,  G05B2219/37435 ,  G05B2219/41115 ,  G05B2219/41256

摘要： A vibration suppressing method and a vibration suppressing device are disclosed. After detection of chatter vibration using at least one vibration detecting device, a stable rotation speed for suppressing the chatter vibration is calculated using a stable rotation speed calculating device. A determination device then compares a detection value detected by the vibration detecting device, a predetermined setting value, and/or a current value that is calculated based on at least one of the detection value and the setting value, to a predetermined determination reference value that is previously set. Thereafter, the determination device determines whether or not the stable rotation speed is adopted in accordance with the comparison result, and changes rotation speed of the rotary shaft to the stable rotation speed if the stable rotation speed is adopted.

摘要翻译： 公开了一种振动抑制方法和振动抑制装置。 在使用至少一个振动检测装置检测到振动振动之后，使用稳定的转速计算装置计算用于抑制颤振的稳定转速。 确定装置然后将由振动检测装置检测到的检测值，预定设定值和/或基于检测值和设定值中的至少一个计算出的当前值与预定的确定基准值进行比较， 以前设置。 此后，确定装置根据比较结果确定是否采用稳定转速，并且如果采用稳定的转速，则将转轴的转速改变到稳定的转速。