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    • 2. 发明授权
    • Duplicating arrangement
    • 复制安排
    • US5003484A
    • 1991-03-26
    • US306981
    • 1989-02-06
    • Norbert Vollmayr
    • Norbert Vollmayr
    • B23Q15/00G05B19/4097G05B19/42
    • G05B19/4207Y10T409/30196
    • A duplicating arrangement is provided for duplicating a workpiece. Data of the workpiece are obtained by scanning of a model, the data are then digitized and stored. The data which is obtained are transformed into NC sets. A relative tool correction consideration is performed in determining the control signals for the drives of the NC machine. The relative tool correction accounts for the generally variable dimensions of the scanning ball used in the scanning of the model and of the radius of the milling tool in the production of the workpiece. A correction movement is superposed on the relative movement between the milling tool and the workpiece if a collision consideration determines that contour surface parts are within the projection surface of the milling tool.
    • 提供了用于复制工件的复制装置。 通过扫描模型获得工件的数据,然后将数据数字化并存储。 将获得的数据转换为NC集。 在确定NC机器的驱动器的控制信号时执行相对的刀具校正考虑。 相对刀具校正考虑了在模型扫描中使用的扫描球的大致可变的尺寸以及在制造工件时铣削刀具的半径。 如果碰撞考虑确定轮廓表面部分在铣削刀具的投影表面内,校正运动叠加在铣刀和工件之间的相对运动上。
    • 6. 发明授权
    • Apparatus and method for determining signal parameters of periodic
square wave signals
    • 用于确定周期性方波信号的信号参数的装置和方法
    • US4534004A
    • 1985-08-06
    • US380272
    • 1982-05-20
    • Norbert Vollmayr
    • Norbert Vollmayr
    • G01B7/00G01B21/00G01D5/246G01R25/00G01R29/02
    • G01D5/246G01R25/00G01R29/02
    • A method and apparatus for determining the phase angle between two periodic square wave signals is disclosed in which the two square wave signals are applied to respective inputs of an exclusive OR gate, the output signal of which is applied to a first input of a digital selection circuit. The output signal generated by this digital selection circuit is passed through a low pass filter to form a time integral, arithmetic mean value which is digitized by an analog to digital converter and supplied as a numerical value to a digital computer. The digital computer applies logical signals to two additional inputs of the digital selection circuit. The computer is programmed to sequentially set these control signals such that the digital signal presented to the computer sequentially represents the mean value, an upper signal level value, and a lower signal level value of the square wave signal output by the selection circuit. The computer is programmed to use these three variables to calculate a corrected value of the phase angle and to display this calculated value on a display unit.
    • 公开了一种用于确定两个周期性方波信号之间的相位角的方法和装置,其中两个方波信号被施加到异或门的相应输入,其异或门被施加到数字选择的第一输入端 电路。 由该数字选择电路产生的输出信号通过低通滤波器以形成由模数转换器数字化并作为数字值提供给数字计算机的时间积分算术平均值。 数字计算机将逻辑信号施加到数字选择电路的两个附加输入。 计算机被编程为顺序地设置这些控制信号,使得呈现给计算机的数字信号顺序地表示由选择电路输出的方波信号的平均值,上限信号电平值和较低信号电平值。 计算机被编程为使用这三个变量来计算相位角的校正值并在显示单元上显示该计算值。