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    • 6. 发明授权
    • Controller for wire electric discharge machine
    • 电线放电机控制器
    • US07039490B2
    • 2006-05-02
    • US10803117
    • 2004-03-18
    • Masaki KuriharaKaoru Hiraga
    • Masaki KuriharaKaoru Hiraga
    • G06F19/00
    • B23H7/20B23H7/04
    • A controller for a wire electric discharge machine which can achieve stable machining with high surface accuracy without requiring adjustment of a gain or the like in wire-electrode feed control. A discharge gap detection unit detects a voltage between a wire electrode and a workpiece. An amount-of-machining-per-unit-distance change detection unit obtains an average machining voltage, and a voltage drop EX that is a difference between the obtained average machining voltage and a no-load voltage. A comparative determination unit obtains a ratio ES/EX between a reference voltage drop ES stored in a reference-amount-of-machining-per-unit-distance relative value storage unit and the drop voltage EX. A feed pulse arithmetic unit obtains a feed speed that makes the amount of machining per unit time constant, on the basis of the ratio ES/EX and a predetermined feed speed, and distributes feed pulses to motors to thereby move the wire electrode relatively to the workpiece. Since the amount of machining per unit time is kept constant, the surface accuracy in finishing is high and stable machining can be performed.
    • 一种用于线放电机的控制器,其可以在不需要调整线电极馈送控制中的增益等的情况下以高表面精度实现稳定的加工。 放电间隙检测单元检测线电极和工件之间的电压。 每单位距离变化检测单元的加工量获得平均加工电压和作为获得的平均加工电压与空载电压之间的差的电压降E X 。 比较确定单元获得存储在参考加工量中的参考电压降E S S之间的比率E SUB / E×X - 单位距离相对值存储单元和下降电压E 。 进给脉冲运算单元基于比率E / S / E 和预定的进给速度来获得使每单位时间内的加工量恒定的进给速度 并且将馈送脉冲分配给电动机,从而相对于工件移动线电极。 由于每单位时间的加工量保持恒定,所以精加工中的表面精度高,可以进行稳定的加工。
    • 7. 发明授权
    • Vibration testing system
    • 振动试验系统
    • US06598480B2
    • 2003-07-29
    • US09994863
    • 2001-11-28
    • Toshihiko HoriuchiMasaki KuriharaTomoyuki HamadaTakao Konno
    • Toshihiko HoriuchiMasaki KuriharaTomoyuki HamadaTakao Konno
    • G01M702
    • G01M7/00
    • A main computer for performing numerical simulation and a sub-computer for controlling each shaking machine are provided. Data transfer between the main computer and sub-computer is performed by communications. The main computer is provided with a model substituting function of modeling a specimen to be shaken, a parameter modification function of sequentially modifying parameters of a model in accordance with the vibration test result, and an abnormality inspection function of judging an abnormality of each shaking system and if an abnormality is detected, substituting the measured value of a reaction force with an output of the model substituting function. It is possible to make an experiment of evaluating the strength and reliability of a massive structure, for example, relative to an earthquake and to make a vibration test at a high precision and with an economical cost.
    • 提供用于执行数字模拟的主计算机和用于控制每个振动机的子计算机。 主计算机和子计算机之间的数据传输由通信进行。 主计算机具有对要振动的样本进行建模的模型替换功能,根据振动试验结果依次修改模型的参数的参数修改功能,以及判断每个抖动系统的异常的异常检查功能 并且如果检测到异常,则用模型替换函数的输出代替反作用力的测量值。 可以进行大型建筑物的强度和可靠性评估的实验,例如相对于地震,并以高精度和经济的成本进行振动试验。