Method and apparatus for controlling an electroerosion machining
operation
    1.
    发明授权
    Method and apparatus for controlling an electroerosion machining operation 失效
    用于控制电腐蚀加工操作的方法和装置

    公开(公告)号:US3975607A

    公开(公告)日:1976-08-17

    申请号:US527889

    申请日:1974-11-27

    IPC分类号: B23H1/02 B23H7/20 B23P1/08

    CPC分类号: B23H7/20

    摘要: Two condition index variables are used for controlling operation in such a manner that one of the variables is kept as close as possible to a minimum value, while the other is held within an assigned range. Both condition index variables depend on the rate of flow of the flushing liquid through the working gap, on the interval between discharges in the gap or on the duty cycle or repetition frequency and amplitude of the discharge pulses. The condition index variable held to a minimum may be the integral of the square of the error signal from the regulating circuit of the electrode advancing drive, the integral of the square of the acceleration of electrode movement or the quotient obtained by dividing the square of the error signal by the square of the gap current. The regulating value to be held within an assigned range is a calculated breakdown potential defined by the relation of the variation of the error signal to the variation of the electrode spacing. The condition index variables are used to control the interval between discharges, the electrode spacing, the flow of flushing liquid, or other variables of the operation. Control of the flow of flushing liquid may be done directly where the liquid is supplied to the gap through holes in the workpiece or indirectly by intermittently backing off the electrodes to a controlled extent.

    摘要翻译: 两个条件索引变量用于控制操作,使得变量之一保持尽可能靠近最小值,而另一个保持在指定范围内。 两个条件指标变量取决于冲洗液体通过工作间隙的流量,间隙中的排放间隔或占空比之间的间隔或排放脉冲的重复频率和振幅。 条件索引变量保持最小可以是来自电极前进驱动的调节电路的误差信号的平方的积分,电极移动的加速度的平方的积分或通过将电极移动的平方除以 误差信号由平方的间隙电流。 保持在指定范围内的调节值是由误差信号的变化与电极间隔的变化的关系定义的计算的击穿电位。 条件指数变量用于控制放电间隔,电极间距,冲洗液流量或其他操作变量。 冲洗液的流动的控制可以直接进行,其中液体通过工件中的孔被供应到间隙,或间接地通过间断地将电极退回到受控的程度。

    Apparatus comprising a plurality of separate parts, and control
apparatus for producing synchronizing control signals for said separate
parts
    2.
    发明授权
    Apparatus comprising a plurality of separate parts, and control apparatus for producing synchronizing control signals for said separate parts 失效
    包括多个单独部件的装置以及用于产生用于所述分离部件的同步控制信号的控制装置

    公开(公告)号:US3961270A

    公开(公告)日:1976-06-01

    申请号:US521632

    申请日:1974-11-07

    CPC分类号: G06F11/1675 H03K19/00392

    摘要: In order to provide respective series of control signals for controlling separate items of apparatus, some of which may be redunant, there are provided a plurality of independently operable signal generators and a plurality of gating circuits connected to the generators and each operable to produce a respective control signal when it receives at least a predetermined number, dependent upon a chosen degree of redundancy of the generators, of correctly timed signals from the generators. Each generator is provided with a phase comparator type timing control device which adjusts the generator if its signals go out of synchronism with those of the other generators. The apparatus to be controlled can be a computer, a multiple-rectifier power supply or the like, and in connecting lines between various parts of the control apparatus and the controlled apparatus isolating devices can be provided.

    摘要翻译: 为了提供用于控制单独的装置项目的各种控制信号,其中一些装置可能是冗余的,提供了多个可独立操作的信号发生器和连接到发生器的多个门控电路,每个控制信号可操作以产生相应的 根据发生器的所选择的冗余度接收至少预定数量的来自发电机的正确定时信号的控制信号。 每个发电机都配有相位比较器型定时控制装置,如果其信号与其它发电机的信号不同步,则调节发生器。 要控制的装置可以是计算机,多重整流器电源等,并且可以提供在控制装置的各个部分和受控设备隔离装置之间的连接线中。

    Apparatus for supplying electrical energy to a load
    3.
    发明授权
    Apparatus for supplying electrical energy to a load 失效
    用于向负载提供电能的装置

    公开(公告)号:US4096394A

    公开(公告)日:1978-06-20

    申请号:US650970

    申请日:1976-01-21

    IPC分类号: H02J9/06 H02J3/32 H02J3/34

    摘要: A main and an auxiliary energy supply device supply energy to a load normally and during disturbances of the main supply respectively while, for bridging brief disturbances in the load supply, for example naturally brief disturbances or during the short time when a disturbance has begun and the auxiliary supply has not yet come into operation, there is provided an energy store which can receive and store energy from the main supply and make this stored energy quickly available to the load. A control logic system controls the main and auxiliary supply devices and the storage means to ensure substantially constant energy supply to the load. The disturbances in question may comprise voltage rises or reductions and/or waveform distortions for example.

    摘要翻译: 主要和辅助能量供应装置分别向主负载的正常和干扰期间向负载供应能量,同时为了桥接负载电源中的短暂干扰,例如自然短暂的干扰或在干扰开始的短时间内 辅助电源尚未投入运行,提供了能够从主电源接收和储存能量的能量储存器,并使该储存能量迅速地供给负载。 控制逻辑系统控制主和辅助供应装置和存储装置,以确保对负载的能量供应基本恒定。 所讨论的干扰可能包括例如电压上升或降低和/或波形失真。