公开(公告)号：US3550107A

公开(公告)日：1970-12-22

申请号：US3550107D

申请日：1967-12-04

申请人： GEN ELECTRIC

发明人： THOMPSON ROBERT A ,  GRABKOWSKI STEPHEN E ,  WEICHBRODT BJORN

IPC分类号： B23Q15/12 ,  G08B23/00

CPC分类号： B23Q17/0976 ,  B23Q15/12 ,  G05B2219/37351 ,  G05B2219/37493 ,  G05B2219/37497 ,  G05B2219/37498 ,  G05B2219/37544 ,  G05B2219/41256

公开(公告)号：US08290630B2

公开(公告)日：2012-10-16

申请号：US12242724

申请日：2008-09-30

申请人： Jason E. Lakomiak ,  Gilles Lanthier

发明人： Jason E. Lakomiak ,  Gilles Lanthier

IPC分类号： G01M1/38 ,  G05B13/00 ,  G05B15/00

CPC分类号： G05B23/0216 ,  B23Q17/12 ,  G01H1/003 ,  G05B23/0221 ,  G05B23/0272 ,  G05B2219/35379 ,  G05B2219/37434 ,  G05B2219/37493

摘要： In one embodiment, the disclosed method includes controlling operation of a machine system via actuators and a first set of signals received from sensors, receiving a second signal from a vibration sensor, calculating vibration parameters based on the second signal. The method further includes the steps of normalizing each of the vibration parameters and presenting the normalized vibration parameters in an operator interface. In another embodiment, the system includes a controller configured to receive sensor signals from a machine system and to control operation of the machine system via actuators. The system also includes a condition monitoring user interface configured to display normalized vibration parameters for the machine system.

摘要翻译： 在一个实施例中，所公开的方法包括通过致动器和从传感器接收的第一组信号来控制机器系统的操作，从振动传感器接收第二信号，基于第二信号来计算振动参数。 该方法还包括以下步骤：对每个振动参数进行归一化并在操作员界面中呈现归一化的振动参数。 在另一个实施例中，系统包括被配置为从机器系统接收传感器信号并经由致动器来控制机器系统的操作的控制器。 该系统还包括配置成显示机器系统的归一化振动参数的条件监视用户界面。

公开(公告)号：US20040135535A1

公开(公告)日：2004-07-15

申请号：US10677127

申请日：2003-10-01

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Stefan Kunzel ,  Theo Reichel ,  Elmar Schafers ,  Andreas Uhlich

IPC分类号： G05B005/01

CPC分类号： F16F15/02 ,  F16F15/005 ,  G05B19/404 ,  G05B2219/37493 ,  G05B2219/37525 ,  G05B2219/41121

摘要： Damping of mechanical oscillation in a shaft that is provided by feedback wherein the output signals of multiple feedback devices are negatively coupled and added to a desired speed signal of a motor speed controller of the driving motor is disclosed. At least one sensor and/or measuring system can be provided for measuring an actual position value. The actual speed of the shaft can be determined by differentiation from the shaft position value measurements or by integration from shaft acceleration measurements. The measured or actual speed of the shaft can be supplied as an input signal to each feedback element. Each feedback element is specifically tuned to an oscillation frequency range of the shaft that is to be damped. The invention provides an easy and cost-effective way of damping mechanical oscillations that have limited frequency ranges.

摘要翻译： 公开了通过反馈提供的轴中的机械振荡的阻尼，其中多个反馈装置的输出信号被负耦合并且被添加到驱动电动机的电动机速度控制器的期望的速度信号。 可以提供至少一个传感器和/或测量系统来测量实际的位置值。 轴的实际速度可以通过与轴位置值测量的区别或通过轴加速度测量的积分来确定。 轴的测量或实际速度可作为输入信号提供给每个反馈元件。 每个反馈元件被特别地调谐到要被阻尼的轴的振荡频率范围。 本发明提供了一种容易和经济有效的阻尼频率范围限制机械振荡的方法。

公开(公告)号：US5319357A

公开(公告)日：1994-06-07

申请号：US895320

申请日：1992-06-08

申请人： Edward N. Diei ,  Jerry H. Carmichael ,  Steven R. Hayashi

发明人： Edward N. Diei ,  Jerry H. Carmichael ,  Steven R. Hayashi

IPC分类号： G01H1/00 ,  G05B19/4065 ,  G08B21/20 ,  G08B21/00

CPC分类号： G08B21/187 ,  G01H1/003 ,  G05B19/4065 ,  G05B2219/37245 ,  G05B2219/37434 ,  G05B2219/37493

摘要： Breaking of a cutter insert in a multiple insert metal cutter is detected by selecting a periodic vibration generated electrical signal having components which track individual insert contribution. These components are filtered to provide RMS values whose predetermined ratio values indicate insert breakage.

摘要翻译： 通过选择具有跟踪单个插入物贡献的部件的周期性振动产生的电信号来检测多刀插入金属切割器中的切割刀片的断裂。 这些组件被过滤以提供RMS值，其预定比率值表示插入损坏。

公开(公告)号：US4656868A

公开(公告)日：1987-04-14

申请号：US763220

申请日：1985-08-07

申请人： Hidekazu Azuma ,  Ryozi Yoshinaka ,  Takayuki Tsuruhashi ,  Katsuiku Hokao ,  Kazuki Watanabe ,  Kazutaka Ogo ,  Takatoshi Suzuki ,  Masahiro Hayashi

发明人： Hidekazu Azuma ,  Ryozi Yoshinaka ,  Takayuki Tsuruhashi ,  Katsuiku Hokao ,  Kazuki Watanabe ,  Kazutaka Ogo ,  Takatoshi Suzuki ,  Masahiro Hayashi

IPC分类号： B23Q17/09 ,  B23Q15/14 ,  G05B19/4065 ,  B23Q15/00 ,  B23Q17/12

CPC分类号： G05B19/4065 ,  G05B2219/37434 ,  G05B2219/37493 ,  G05B2219/37586 ,  Y10T408/172 ,  Y10T409/30728 ,  Y10T83/141

摘要： An apparatus for discriminating a machining state from a non-machining state in a machine tool wherein a workpiece is machined with a cutting tool or grinder, comprising plural vibration sensors including at least one acoustic-emission sensor, which detect vibrations of different frequency bands, respectively, which are produced during machining of the workpiece by the tool. A discriminating device judges that the workpiece is being machined by the tool when levels of output signals generated from at least two of the vibration sensors are higher than respective predetermined threshold levels, and judges that the workpiece is not being machined by the tool when the level of an output signal generated from less than two of the vibration sensors is higher than a predetermined threshold level. Also disclosed is a method for discrimination between the machining and non-machining states.

摘要翻译： 一种用于在机床中识别加工状态与非加工状态的装置，其中用切削工具或研磨机加工工件，包括多个振动传感器，所述多个振动传感器包括检测不同频带的振动的至少一个声发射传感器， 分别是通过工具加工工件时产生的。 鉴别装置判断当从至少两个振动传感器产生的输出信号的电平高于相应的预定阈值电平时，工具正在加工工件，并且当电平达到等级时判定工件未被加工 由少于两个振动传感器产生的输出信号的输出信号高于预定的阈值电平。 还公开了用于区分加工和非加工状态的方法。

公开(公告)号：US4563897A

公开(公告)日：1986-01-14

申请号：US570180

申请日：1984-01-12

申请人： Arthur I. W. Moore

发明人： Arthur I. W. Moore

IPC分类号： G01N3/58 ,  G05B19/4065 ,  G01N29/04

CPC分类号： G05B19/4065 ,  B23Q17/0971 ,  G01N3/58 ,  G05B2219/37004 ,  G05B2219/37242 ,  G05B2219/37432 ,  G05B2219/37433 ,  G05B2219/37434 ,  G05B2219/37493 ,  G05B2219/37498 ,  G05B2219/37544 ,  G05B2219/37545 ,  G05B2219/50008

摘要： A system for monitoring the vibration of a power driven cutting tool during machining first produces a signal proportional to the vibration spectrum of the tool over a preselected band width. This is passed through a digitally controlled attenuator which is adjusted to provide an output signal at a preselected level. The degree of attenuation is stored, as is a reference value which is generated as a function of the attenuated signal. Then, during subsequent machining operations under the same machining conditions the attenuator is controlled to provide the same degree of attenuation and the reference value, which is in the form of a digital signal, is compared with the rectified and digitized output of the attenuator. When the latter exceeds the reference value a control signal is generated which either provides an audible or visual warning that the cutting tool is worn and therefore due for replacement or initiates an automatic tool changing operation. The system effectively monitors the wear of the tool and, in providing its own reference, i.e. the reference value which is generated, caters automatically for changes in the machining conditions such as use of a different tool or change in workpiece material.

摘要翻译： 用于在加工期间监测动力驱动的切削工具的振动的系统首先在预选的带宽上产生与工具的振动频谱成比例的信号。 这通过一个数字控制的衰减器，该衰减器被调节以提供预选电平的输出信号。 存储衰减程度，作为衰减信号的函数产生的参考值。 然后，在相同加工条件下的后续加工操作中，衰减器被控制以提供相同程度的衰减，并且以数字信号的形式将参考值与衰减器的整流和数字化输出进行比较。 当后者超过参考值时，产生控制信号，其提供切割工具被磨损的可听或视觉警告，因此由于更换或启动自动换刀操作。 该系统有效地监测工具的磨损，并且在提供其自身参考时，即产生的参考值，自动适应加工条件的变化，例如使用不同的工具或工件材料的变化。

公开(公告)号：US20170329306A1

公开(公告)日：2017-11-16

申请号：US15592933

申请日：2017-05-11

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： MARKUS STEPHAN HASCHKA ,  PHILIPP ROST ,  ELMAR SCHÄFERS ,  TORSTEN SCHÜR ,  BJÖRN SEELINGER

IPC分类号： G05B19/4063 ,  G05B19/12 ,  H03L7/02 ,  G05B19/408 ,  G05B19/4099

CPC分类号： G05B19/4063 ,  G05B5/01 ,  G05B19/12 ,  G05B19/4083 ,  G05B19/4099 ,  G05B2219/31228 ,  G05B2219/37493 ,  G05B2219/45187 ,  H03L7/02

摘要： A closed-loop control device to control a system to be controlled includes a front node, back node, external tapping point, controller and compensating circuit. The compensating circuit has an inner node, frequency filter, front buffer and back buffer. The front node determines a difference; the back node supplies an external sum signal. A setting device automatically suppresses use of the output signal of the front buffer, supplies the back buffer and the back node with a first excitation signal as the compensation signal and detects a first result signal produced by the first excitation signal. The first result signal is one of the control difference, internal sum signal, output filtered signal of the frequency filter or output signal of the front buffer. The setting device evaluates the first excitation signal and the first result signal, sets a parameter of the frequency filter and the second propagation delay.

公开(公告)号：US5249138A

公开(公告)日：1993-09-28

申请号：US638747

申请日：1991-01-07

申请人： Kenneth R. Piety, Jr. ,  Stewart V. Bowers, III ,  Timothy A. Craven

发明人： Kenneth R. Piety, Jr. ,  Stewart V. Bowers, III ,  Timothy A. Craven

IPC分类号： G05B19/4065 ,  G08C19/02

CPC分类号： G08C19/02 ,  G05B19/4065 ,  G05B2219/37493 ,  G05B2219/37498

摘要： The specification describes a system for analyzing and processing an input analog signal. This invention provides an analog signal preprocessor which is operated in conjunction with a main instrument for measuring any defects or wear of machinery parts. The analog signal preprocessor operates to preprocess an analog signal by filtering and amplifying a signal from the analog signal to allow a more accurate reading by the main instrument. The preprocessor will adjust itself for optimum operation and communicate the operation modes to the main instrument. Also, the preprocessor can be addressed by the main instrument to setup the operation of the preprocessor according to a program or input entered into the main instrument.

摘要翻译： 本说明书描述了一种用于分析和处理输入模拟信号的系统。 本发明提供了一种模拟信号预处理器，其与用于测量机械部件的任何缺陷或磨损的主仪器结合操作。 模拟信号预处理器通过对来自模拟信号的信号进行滤波和放大来对模拟信号进行预处理，以允许主仪器更准确的读取。 预处理器将调整自身以获得最佳操作，并将操作模式传达到主仪器。 此外，预处理器可以由主仪器寻址，以根据输入到主仪器中的程序或输入来设置预处理器的操作。

公开(公告)号：US5237779A

公开(公告)日：1993-08-24

申请号：US559843

申请日：1990-07-30

申请人： Masato Ota

发明人： Masato Ota

IPC分类号： B23Q17/09 ,  B24B47/22 ,  B24B49/00 ,  G05B19/4063

CPC分类号： B24B47/22 ,  G05B19/4063 ,  G05B2219/37493

摘要： An apparatus for detecting machining states of a workpiece in a machine tool comprises a non-contact type displacement detector for detecting a radial bending displacement of a spindle in a region between a machining point and a front bearing of a tool spindle or a work spindle. The displacements correspond to states under which the machine tool starts operating, and the tool contacts the workpiece to various unfinished faces, a machining state and a machining surface condition of the workpiece during machining. By inputting the detection signal to different frequency band pass filters, the machining states and the workpiece surface condition are discriminated. A set of comparators compare the output signals from the frequency band pass filters with set reference values. The respective machining states are judged from the comparative results. Comparative judgment signals are inputted to a control unit, thereby controlling the machine tool to automatically perform appropriate machining operations.

公开(公告)号：US5170358A

公开(公告)日：1992-12-08

申请号：US623055

申请日：1990-12-06

申请人： Thomas S. Delio

发明人： Thomas S. Delio

IPC分类号： G05B19/416

CPC分类号： G05B19/4163 ,  G05B2219/34047 ,  G05B2219/37434 ,  G05B2219/37493 ,  G05B2219/41256

摘要： A method of controlling chatter in a rotating, chip cutting machine tool cutting at a predetermined depth on a workpiece in which the speed of rotation of the cutting tool relative to the workpiece and the rate of speed of the cutting tool relative to the workpiece both adjustably controlled between predetermined minimum and maximum rates for the particular combination of machine tool and workpiece material. The method includes the steps of detecting vibration signals representative of relative vibrations between the machine tool and the workpiece and generated by preliminary operation of the machine tool at predetermined conditions, processing that generated signal as a function of signal frequency, obtaining a signal indicative of the rotational speed and determinating the threshold of the signal level above which are excluded harmonics of the predetermined rotational frequencies that are indicative of chatter in the cutting tool. Additional steps interrupt the feed of the cutting tool and change the speed of rotation if operationally generated audio signal levels exceed a threshold and then change the speed of rotation of the cutting tool and resume the feed of cutting engagement. These steps are repeated until operation of the machine tool is obtained without operationally generated chatter signals exceeding the threshold or, when necessary, reducing the speed of rotation and the rate of feed to predetermined levels known to avoid generation of chatter signals in excess of the threshold.

摘要翻译： 一种控制旋转的切屑机床中的颤动的方法，该切削机床在工件上以预定的深度切割切削工具相对于工件的旋转速度和切削刀具相对于工件的速度两者可调节 对于机床和工件材料的特定组合，在预定的最小和最大速率之间进行控制。 该方法包括以下步骤：检测表示机床和工件之间的相对振动的振动信号，并且通过机床在预定条件下的初步操作产生，处理该信号作为信号频率的函数，获得指示 旋转速度并确定信号电平的阈值，高于该阈值是表示切削工具中的颤动的预定旋转频率的排除的谐波。 如果操作产生的音频信号电平超过阈值，然后改变切割工具的旋转速度并恢复切割接合的进给，则附加步骤会中断切割工具的进给并改变旋转速度。 重复这些步骤，直到获得机床的操作而没有操作上产生的颤振信号超过阈值，或者在必要时将进给速度降低到已知的预定水平以避免产生超过阈值的颤振信号 。