Vibration determination method and vibration determination device
    43.
    发明授权
    Vibration determination method and vibration determination device 有权
    振动测定方法及振动测定装置

    公开(公告)号:US09381608B2

    公开(公告)日:2016-07-05

    申请号:US13353596

    申请日:2012-01-19

    Applicant: Takaaki Tanaka

    Inventor: Takaaki Tanaka

    CPC classification number: B23Q11/0039 B23Q17/12 G05B19/404 G05B2219/41256

    Abstract: 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.

    Abstract translation: 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。

    Manufacturing methods and systems using sacrificial structure preforms
    44.
    发明授权
    Manufacturing methods and systems using sacrificial structure preforms 有权
    使用牺牲结构预制件的制造方法和系统

    公开(公告)号:US09375818B2

    公开(公告)日:2016-06-28

    申请号:US13916923

    申请日:2013-06-13

    Abstract: A manufacturing method, including: given a predetermined finished part geometry, providing a sacrificial structure preform that simultaneously contains the finished part geometry, minimizes material that must be removed from the sacrificial structure preform to achieve the finished part geometry during machining, and has a sufficient stiffness to resist a machining force that will be applied during machining without allowing the finished part geometry to be compromised; and machining the sacrificial structure preform to achieve the finished part geometry. The manufacturing method also includes preliminarily estimating a stiffness of the finished part geometry and the machining force that will be applied during machining.

    Abstract translation: 一种制造方法,包括:给定预定的成品部件几何形状,提供同时包含成品部件几何形状的牺牲结构预制件,使得必须从牺牲结构预制件移除的材料最小化,以在加工期间实现最终零件几何形状,并具有足够的 刚度以抵抗将在加工期间施加的加工力,而不允许成品零件几何形状受损; 并加工牺牲结构预制件以实现最终零件几何形状。 该制造方法还包括预先估计最终零件几何形状的刚度和在加工过程中应用的加工力。

    Machine tool
    45.
    发明授权
    Machine tool 有权
    机床

    公开(公告)号:US09126300B2

    公开(公告)日:2015-09-08

    申请号:US13270559

    申请日:2011-10-11

    Abstract: In a machine tool which includes a rotary shaft configured to allow a tool or a workpiece to be attached thereto, a driving unit for causing the rotary shaft to rotate is regulated to change a rotation speed of the rotary shaft in such a manner that the rotation speed oscillates with a given amplitude and a given period with respect to a given mean rotation speed, so that chatter vibrations can be suppressed. A parameter display control unit configured to cause a display device to display parameter information related to predetermined parameters for changing at least one of the mean rotation speed, the amplitude and the period is provided so that the parameters can be changed based upon the parameter information displayed in the display device.

    Abstract translation: 在包括构造成允许工具或工件附接到其上的旋转轴的机床中,调节用于使旋转轴旋转的驱动单元被调节以使旋转轴的旋转速度以使得旋转轴 相对于给定的平均转速,速度以给定的振幅和给定的周期振荡,从而可以抑制颤动振动。 参数显示控制单元被配置为使得显示设备显示与用于改变平均转速,幅度和周期中的至少一个的预定参数相关的参数信息,使得可以基于显示的参数信息来改变参数 在显示设备中。

    Operating history management method and operating history management apparatus
    46.
    发明授权
    Operating history management method and operating history management apparatus 有权
    运行历史管理方法和运行历史管理装置

    公开(公告)号:US08862429B2

    公开(公告)日:2014-10-14

    申请号:US13245141

    申请日:2011-09-26

    CPC classification number: B23Q17/12 B23Q17/007

    Abstract: At least a rotation speed of a rotary shaft and a vibration acceleration in a frequency domain are stored as an operating history, and the operating history is stored not only when the rotation speed of the rotary shaft varies, but also when a maximum value of the vibration acceleration in the frequency domain exceeds a predetermined threshold. Therefore, variation in the rotation speed of the rotary shaft and the chatter vibration occurrence state can be stored in association with each other. Hence, an operator can learn the rotation speed of the rotary shaft and the chatter vibration occurrence state in association with each other. As a result, chatter vibration can be suppressed easily and effectively.

    Abstract translation: 旋转轴的旋转速度和频域中的振动加速度的至少存储作为运行历史,并且不仅在旋转轴的旋转速度变化时存储运转历史,而且, 频域中的振动加速度超过预定阈值。 因此,可以相互关联地存储旋转轴的旋转速度和颤动发生状态的变化。 因此,操作者可以相互关联地学习旋转轴的旋转速度和振动振动发生状态。 结果,可以容易且有效地抑制振动振动。

    Module for on-line vibration detection and adjustment and machining center using the same
    47.
    发明授权
    Module for on-line vibration detection and adjustment and machining center using the same 有权
    模块用于在线振动检测和调整及加工中心使用

    公开(公告)号:US08776342B2

    公开(公告)日:2014-07-15

    申请号:US12871419

    申请日:2010-08-30

    Abstract: A module for on-line vibration detection and adjustment and machining center using the same are provided in the present invention, wherein the module is disposed at the machining center having an interface of feedrate override and an interface of spindle override and the inverter. The module comprises at least one vibration sensor for detecting the vibrating status of the machining center, thereby generating corresponding at least one sensing signal and a processor for processing the at least one sensing signal so as to generate a spindle adjusting signal for the interface of spindle override and the inverter and a feedrate adjusting signal for the interface of the federate override. The computer numerical controller receives the spindle adjusting signal and the feedrate adjusting signal from the interface of the spindle override and federate override respectively and accordingly controls the feedrate and spindle rate of the machining center.

    Abstract translation: 在本发明中提供了一种用于在线振动检测和调整和加工中心的模块,其中模块设置在具有进给倍率和主轴倍率与逆变器接口的加工中心处。 该模块包括至少一个用于检测加工中心的振动状态的振动传感器,从而产生相应的至少一个感测信号和处理器,用于处理至少一个感测信号,以便产生主轴接口的主轴调节信号 超控和变频器以及联合超控接口的进给速度调整信号。 计算机数值控制器分别从主轴超控和联合超控接口接收主轴调整信号和进给速度调节信号,从而控制加工中心的进给速度和主轴转速。

    TOOL BIT MONITORING FOR ON-VEHICLE BRAKE LATHE
    48.
    发明申请
    TOOL BIT MONITORING FOR ON-VEHICLE BRAKE LATHE 有权
    车辆刹车片的工具点监控

    公开(公告)号:US20110144794A1

    公开(公告)日:2011-06-16

    申请号:US12639040

    申请日:2009-12-16

    CPC classification number: B23Q17/12 B23Q17/22 Y10T82/21 Y10T82/2502

    Abstract: A system and method for monitoring the contact of tool bits of a lathe with surfaces of a brake disk being machined employs a vibration sensor coupled to the lathe. Signals from the vibration sensor are processed as time-averaged segments that can be grouped within time intervals; a microprocessor employs a qualifying routine to compare the signal level to a background noise threshold value and indicates as “failed” those time periods where the average signal level is not above the background noise threshold. An accumulator records the indications over a number of intervals and compares the result to a standard to make a determination of whether the lathe is likely actively cutting the disk surfaces. To isolate intermittent, high-intensity noises, a consistency routine can check further to see whether individual segments within an interval fall within a range based on the average signal level for that interval.

    Abstract translation: 用于监测车床的工具位与正在加工的制动盘的表面的接触的系统和方法采用耦合到车床的振动传感器。 来自振动传感器的信号被处理为可以在时间间隔内分组的时间平均段; 微处理器采用限定程序将信号电平与背景噪声阈值进行比较,并将平均信号电平不高于背景噪声阈值的那些时间段表示为“失败”。 累加器在多个间隔内记录指示,并将结果与​​标准进行比较,以确定车床是否可能主动切割磁盘表面。 为了隔离间断的高强度噪声,一致性程序可以进一步检查,以确定间隔内的各段是否基于该区间的平均信号电平落入范围内。

    Method and device for vibration control
    49.
    发明授权
    Method and device for vibration control 失效
    振动控制方法及装置

    公开(公告)号:US07340985B2

    公开(公告)日:2008-03-11

    申请号:US10997992

    申请日:2004-11-29

    Abstract: A device and method for vibration control in a machine for cutting, said machine comprising a cutting tool supported by a tool holder. The device comprises a control unit and converting means which are connectible to the control unit and comprise a vibration sensor and an actuator. The actuator comprises an active element which converts an A.C. voltage supplied by the control unit to the actuator into dimensional changes. Said active element is adapted to be embedded in the body of the tool holder and in such manner that said dimensional changes impart bending to the body of the tool holder.

    Abstract translation: 一种用于切割的机器中的振动控制的装置和方法,所述机器包括由工具架支撑的切割工具。 该装置包括可连接到控制单元并包括振动传感器和致动器的控制单元和转换装置。 致动器包括将由控制单元提供的交流电压转换为致动器的有源元件作为尺寸变化。 所述有源元件适于嵌入工具保持器的主体中并且以这种方式使得所述尺寸变化赋予工具保持器的主体弯曲。

Patent Agency Ranking