Control system auto-tuning
    1.
    发明授权
    Control system auto-tuning 有权
    控制系统自整定

    公开(公告)号:US09207653B2

    公开(公告)日:2015-12-08

    申请号:US13618277

    申请日:2012-09-14

    IPC分类号: G05B13/02

    摘要: A control system includes a controller. The controller repeatedly excites a control loop characterized by parameters having randomly selected values for each excitation and scores a response of the control loop to each excitation relative to a target signal until the scores no longer achieve a value less than a minimum of the scores for a predefined number of excitations occurring after the excitation yielding the minimum of the scores to auto-tune the control system.

    摘要翻译: 控制系统包括控制器。 控制器重复地激励控制回路,其特征在于具有对于每个激励具有随机选择的值的参数,并且将控制回路的响应相对于目标信号分配给每个激励,直到得分不再达到小于最小值 在激励之后发生的预定数量的激励产生自动调整控制系统的最小分数。

    Program controlled force measurement and control system
    2.
    发明授权
    Program controlled force measurement and control system 失效
    程控受力测量与控制系统

    公开(公告)号:US4891764A

    公开(公告)日:1990-01-02

    申请号:US131991

    申请日:1987-12-11

    申请人: James L. McIntosh

    发明人: James L. McIntosh

    摘要: A microprocessor based electric actuator control system is provided which allows accurate determination of the forces opposing movement of manipulator driveshaft. The control system electronically sets a predetermined current through an actuator to produce an electromagnetic force. A displacement measuring device, in conjunction with a time clock measures velocity and calculates acceleration of the actuator in response to the current. The force on the shaft is computer varied such that the acceleration is determined. For the acceleration to be zero, the electromagnetic force be exactly balanced by forces equal but opposite in magnitude. Since the force value is determined by the computer, the opposing force is also accurately determined with no external sensing device needed.

    摘要翻译: 提供了一种基于微处理器的电动执行器控制系统,其允许精确地确定相对于操纵器驱动轴的运动的力。 控制系统通过致动器电子地设定预定电流以产生电磁力。 位移测量装置结合时钟测量速度并且响应于电流计算致动器的加速度。 轴上的力是计算机变化的,从而确定加速度。 对于加速度为零,电磁力由大小相等但相反的力精确地平衡。 由于力值由计算机确定,所以在没有需要外部感测装置的情况下也可以精确地确定相反的力。

    Machine tool with audio feedback
    5.
    发明申请
    Machine tool with audio feedback 审中-公开
    具有音频反馈的机床

    公开(公告)号:US20130035776A1

    公开(公告)日:2013-02-07

    申请号:US13136381

    申请日:2011-08-01

    IPC分类号: G05B19/406

    摘要: A microphone senses the sound generated by a tool cutting a workpiece. The sound is analysed and compared to prior known sounds of good and bad cutting operations by an audio-processing device, and computer-controlled feedback is provided to control the tool and/or workpiece appropriately. The system can improve the quality of its feedback as a result of experience with particular tools and workpieces.

    摘要翻译: 麦克风感测工件切割工件产生的声音。 对声音进行分析,并与先前已知的通过音频处理装置的良好和差的切割操作的声音进行比较,并提供计算机控制的反馈以适当地控制工具和/或工件。 该系统可以通过特定工具和工件的经验来提高其反馈的质量。

    Method of actuator control
    6.
    发明申请
    Method of actuator control 有权
    执行器控制方法

    公开(公告)号:US20090267557A1

    公开(公告)日:2009-10-29

    申请号:US11921187

    申请日:2006-05-30

    IPC分类号: G05B23/02 G05B23/00

    摘要: The present invention is related to a method of controlling a device having a calibration process. The calibration process has a partial calibration routine and a calibration routine. A detector within the control system is capable of receiving one or more input signals and determining whether a partial calibration or calibration should occur. The first step in the process involves starting the control method where the detector receives input signals or generates it own data within the detector. The detector also determines whether a partial calibration routine or a calibration routine will take place based upon the value of the input signals received. A partial calibration routine will be performed if the input signals to the detector do not favor a calibration.

    摘要翻译: 本发明涉及一种控制具有校准过程的装置的方法。 校准过程具有部分校准程序和校准程序。 控制系统内的检测器能够接收一个或多个输入信号并确定是否应发生部分校准或校准。 该过程的第一步包括启动控制方法,其中检测器接收输入信号或在检测器内产生自己的数据。 检测器还基于所接收的输入信号的值确定部分校准例程或校准例程是否发生。 如果检测器的输入信号不利于校准,则将执行部分校准程序。

    Drilling process and apparatus
    7.
    发明授权
    Drilling process and apparatus 失效
    钻孔工艺和设备

    公开(公告)号:US5318136A

    公开(公告)日:1994-06-07

    申请号:US924057

    申请日:1992-09-04

    摘要: In a drilling process speed, bit thrust and penetration are monitored. Data stored in a data base relating rotational speed and thrust as adjustable variables is correlated with data on the penetration rate as controlled parameter to produce a matrix to enable prediction of penetration rate to be expected at known thrust and rotational rates. Likewise a similar matrix may be constructed for relating wear rate to adjustable variables for example speed and thrust. The parameters predicted from these variables at various values for the speed and thrust are used to construct a further matrix relating bit penetration and bit wear rates with cost per unit distance drilled and this third matrix searched for minimum cost. From the first two matrices rotation rate of the drill bit and thrust applied to the drill bit are adjusted to give a predicted penetration rate for minimum cost and the drill bit is operated at these conditions. All conditions are monitored and the information used to recalculate the various matrices to define the process.

    摘要翻译: PCT No.PCT / GB91 / 00348 Sec。 371日期:1992年9月4日 102(e)日期1992年9月4日PCT 1991年3月6日PCT公布。 公开号WO91 / 14214 PCT 日期1991年9月19日。在钻孔过程中,钻头推力和穿透力被监控。 存储在与旋转速度和推力相关联的数据库中的数据作为可调整变量与作为受控参数的渗透率的数据相关联,以产生矩阵,以使得能够以已知的推力和旋转速率预测穿透速率。 同样,可以构造类似的矩阵,用于将磨损率与可调变量相关联,例如速度和推力。 用这些变量预测的各种速度和推力数值的参数用于构建一个进一步的钻头钻头与钻头磨损率相关的矩阵,每单位钻孔成本为零,而该第三个矩阵搜索最小成本。 从前两个矩阵中,钻头的旋转速度和施加到钻头的推力被调节以给出最小成本的预测穿透速率,并且在这些条件下操作钻头。 监视所有条件,并用于重新计算各种矩阵以定义过程的信息。

    Dynamic correction of servo following errors in a computer-numerically
controlled system and fixed cycle utilizing same
    10.
    发明授权
    Dynamic correction of servo following errors in a computer-numerically controlled system and fixed cycle utilizing same 失效
    在计算机数控系统中的伺服跟随误差的动态校正和使用相同的固定循环

    公开(公告)号:US5005135A

    公开(公告)日:1991-04-02

    申请号:US327324

    申请日:1989-03-22

    摘要: The invention relates to servo-driven computer-numerically-controlled systems of the type adapted to receive part program instructions defining a desired path of relative movement between a tool and a workpiece, wherein the path may include an interior or exterior curved portion to be effected by coordinated linear movement of machine members along at least two orthogonal linear axes. The invention provides apparati and methods for correcting path radius errors to facilitate rapid and accurate movement along the curve. In a preferred embodiment, such path radius correction is applied to a fixed cycle for machining inside circles preferably incorporating such path radius correction and providing substantially tangential engagement between the tool and a machining locus orbited by the tool to avoid abrupt accelerations or decelerations while the tool is in contact with the workpiece. In addition to avoiding surface blemishes, this facilitates machining a broader range of hole sizes with a given sized tool thereby reducing the need for frequent tool changes. The invention carries out path radius correction by generating position commands received by the servo using corrected radius data, the difference between which and the desired radius to be machined compensates for at least a portion of the path radius error that would otherwise be generated by the servo. Apparatus and methods for threading holes using a non-helical threading tools with or without path radius correction are also disclosed.

    摘要翻译: 本发明涉及适于接收部件程序指令的伺服驱动的计算机数字控制系统,该程序指令限定了工具和工件之间的相对运动的期望路径,其中该路径可包括要实现的内部或外部弯曲部分 通过沿着至少两个正交线性轴的机器构件的协调线性运动。 本发明提供了用于校正路径半径误差的装置和方法,以促进沿着曲线的快速和准确的移动。 在优选实施例中,将这种路径半径校正应用于用于在圆内进行加工的固定循环,优选地包括这种路径半径校正并且在工具与由工具轨道运动的加工轨迹之间提供基本上切向的接合以避免突然加速或减速,同时工具 与工件接触。 除了避免表面瑕疵之外,这有助于使用给定尺寸的工具加工更宽范围的孔尺寸,从而减少频繁更换刀具的需要。 本发明通过产生由伺服使用校正的半径数据接收的位置命令来执行路径半径校正,其中加工的所需半径和所需半径之间的差补偿由伺服器产生的路径半径误差的至少一部分 。 还公开了使用具有或不具有路径半径校正的非螺旋穿线工具穿孔的装置和方法。