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1.发明授权
公开(公告)号：US4484053A
公开(公告)日：1984-11-20
申请号：US423741
申请日：1982-09-27
CPC分类号： B23H9/04
摘要： There is disclosed a device for electrical discharge machining of a work in the form of a roll for providing a satinized indented surface by satinizing operation to a predetermined surface roughness, wherein two rows of heads each mounting one or more electrodes are mounted on either sides of the rotary axis of the roll for increasing the number of heads and thereby reducing the working time. One of the rows of heads is movably mounted on a shaft on the side of roll handling operation of the roll for transiently displacing the heads in their entirety to an out-of-the-way position for solving the problem caused by roll handling and by the increase in the number of heads.
摘要翻译： 公开了一种用于放电加工的工件的装置，用于通过将预定的表面粗糙度进行缎纹化操作来提供缎纹的凹入表面，其中安装一个或多个电极的两排头安装在 辊的旋转轴，用于增加头数，从而减少工作时间。 头列之一可移动地安装在辊的辊处理操作侧的轴上，用于将头部的整体瞬时移位到不通过位置，以解决由辊处理引起的问题，以及通过 头数增加。
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公开(公告)号：US4484051A
公开(公告)日：1984-11-20
申请号：US347387
申请日：1982-02-09
CPC分类号： B23H1/02
摘要： An EDM machining apparatus is provided with means for automatic shut off upon completion of a machining process, including a voltage variation pattern detector capable of discriminating electrode penetration of the workpiece. Several other machining parameters, such as machining solution flow and pressure, machining depth, and electrode speed and direction may be used is secondary or confirmation detection factors, so as to positively detect the time of electrode penetration, and halt the machining process.
摘要翻译： 电火花加工加工装置具有用于在完成加工过程后自动关闭的装置，包括可识别工件的电极穿透的电压变化图案检测器。 可以使用几种其他加工参数，例如加工溶液流量和压力，加工深度，电极速度和方向，是次要或确认检测因素，以便积极地检测电极穿透的时间，并停止加工过程。
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公开(公告)号：US4476368A
公开(公告)日：1984-10-09
申请号：US320208
申请日：1981-11-12
申请人： Fred W. Cammann , John Nester , Jere H. Roach
发明人： Fred W. Cammann , John Nester , Jere H. Roach
CPC分类号： B23K9/0135 , B23H9/00 , F22B37/003 , B23H2400/10
摘要： A metal tube wall disintegrator is convertible in being able to disintegrate an arcuate or annular portion on the inner wall of the metal tube or to disintegrate merely one longitudinally extending portion on the inner wall of the tube. In the arcuate disintegrating mode, the disintegrator uses an electrode which is rotated at the end of a flexible cable inside the tube at a selected longitudinal position to be able to disintegrate or cut partially or completely through the tube wall. A first drive means rotates the flexible cable and electrode, and a second drive means rotates an outer tubular sheath of the flexible cable. This tubular sheath rotates a guide tip at the forward end of the outer sheath and the guide tip has a radially elongated, eccentric slot through which the electrode shaft extends. This permits a slow rotation of the eccentric slot so that the electrode disintegrator arc moves in an arcuate path around the inner tube wall. In the second mode, control means stops the rotation of the guide tip and a longitudinally elongated electrode is used to disintegrate an area at only one peripheral position in the inner tube wall, this disintegrator area having a longitudinal length greater than the lateral dimension thereof. This permits a tube wall to be disintegrated completely through, or nearly through, at this one peripheral position so that the tube may be relaxed, and hence capable of being withdrawn from a boiler tube sheet in which the tube has been confined. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
摘要翻译： 金属管壁分解器可以转换成能够分解金属管的内壁上的弧形或环形部分，或者仅在管的内壁上分解一个纵向延伸的部分。 在弓形崩解模式中，崩解器使用电极，该电极在选定的纵向位置处在管内的柔性电缆的端部旋转，以能够部分或完全地通过管壁分解或切割。 第一驱动装置使柔性电缆和电极旋转，第二驱动装置旋转柔性电缆的外管状护套。 该管状护套在外护套的前端处旋转引导尖端，并且引导尖端具有径向延伸的偏心槽，电极轴穿过其延伸。 这允许偏心槽的缓慢旋转，使得电极分解器弧围绕内管壁以弧形路径移动。 在第二模式中，控制装置停止引导尖端的旋转，并且使用纵向细长电极来分解内管壁中只有一个周边位置处的区域，该分解器区域的纵向长度大于其横向尺寸。 这允许管壁在这一个周边位置被完全分解或者几乎通过，使得管可以松弛，并且因此能够从管被限制的锅炉管板中取出。 上述摘要仅仅是一般应用的简历，不是所有操作原理或应用的完整讨论，并不被解释为对所要求保护的主题的范围的限制。
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公开(公告)号：US4475996A
公开(公告)日：1984-10-09
申请号：US354440
申请日：1982-03-03
申请人： Kiyoshi Inoue
发明人： Kiyoshi Inoue
CPC分类号： B23H7/10
摘要： A multi-strand wire electroerosion machining method and apparatus are disclosed wherein a plurality of wires dispensed from respective wire sources are fed separately into a wire travel path and are assembled via wire guides into a bundle thereof. The bundle of the wires traversing a fluid-flushed cutting zone defined between machining electrode guides constitutes a single traveling electrode for electroerosively machining a workpiece. The wires from the cutting zone are taken up into a collection site while they are held sufficiently taut between the electrode guides. The workpiece is displaced relative to the bundle of traveling wires transversely to the axis thereof to machine a desired contour in the workpiece. Preferably, the wires in the bundle are twisted. Also disclosed is a rotary die for shaping the wires in their travel path to provide the bundle with a predetermined cross-sectional contour spaced from the wall of the workpiece across the machining gap.
摘要翻译： 公开了一种多股线电腐蚀加工方法和装置，其中从相应的线源分配的多根电线被单独地馈送到线路行进路径中，并且经由导线器组装成其束。 穿过在加工电极引导件之间限定的流体冲洗的切割区域的金属丝束构成用于电极加工工件的单个行进电极。 来自切割区域的电线被吸收到收集位置，同时它们被牢固地保持在电极引导件之间。 工件相对于横向于其轴线的行进线束移位，以加工工件中的期望轮廓。 优选地，束中的线被扭曲。 还公开了一种用于在它们的行进路径中成形导线的旋转模具，以便在整个加工间隙上提供具有与工件的壁间隔开的预定横截面轮廓。
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5.发明授权
公开(公告)号：US4443682A
公开(公告)日：1984-04-17
申请号：US315197
申请日：1981-10-26
申请人： Kuang-Ta Ho
发明人： Kuang-Ta Ho
CPC分类号： B23H1/022
摘要： A circuit for electrical discharge machining including two MOSFETS. The first MOSFET (28) has its power conducting terminals connected between the gap (20,22) and DC power supply (30). Its gate is connected to a source of variable amplitude signals (14). The second MOSFET has its power conducting terminals connected between the gap (20,22) and a voltage DC power supply (40). It has its gate connected to a source of spike signals (18). A multivibrator (10) conjointly operates both sources (14 and 18).
摘要翻译： 一种用于放电加工的电路，包括两个MOSFET。 第一MOSFET（28）的导电端子连接在间隙（20,22）和直流电源（30）之间。 其门连接到可变幅度信号源（14）。 第二MOSFET的功率导电端子连接在间隙（20,22）和电压直流电源（40）之间。 它的门连接到尖峰信号源（18）。 多谐振荡器（10）共同操作两个源（14和18）。
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公开(公告)号：US4434346A
公开(公告)日：1984-02-28
申请号：US404326
申请日：1982-08-02
申请人： Roger J. Kern
发明人： Roger J. Kern
CPC分类号： B23H7/18
摘要： A method and apparatus for detecting the point of contact between a workpiece of electrically conductive material in a machine and an electrically conductive element movable relative to and insulated from the workpiece, such as the electrode of an electrical discharge machine, wherein in a time-varying signal, in particular sinusoidal, of predetermined amplitude and frequency is applied to the workpiece, a signal is derived from the conductive element or electrode resulting from the flow of current through the gap between the workpiece and conductive element in response to the applied signal, and the applied and derived signals are compared as to amplitude and phase angle. An indication of the comparison is provided with the result that the combination of an amplitude difference and a phase difference between the applied and derived signals indicates the status of the contact gap, respectively, between the workpiece and conductive element or electrode. The comparison and indication can be performed in an analog manner by means including a cathode ray tube providing a visual display of the amplitude and phase comparisons of the applied and derived signals as Lissajous patterns. The comparison and indication also can be performed in a digital manner by circuit means providing logical states indicating the results of the amplitude and phase comparisons of the signals, which logical states can be utilized to provide visual indications of the same.
摘要翻译： 一种用于检测机器中的导电材料的工件与能够相对于工件（例如放电机的电极）相对并且与其绝缘的导电元件之间的接触点的方法和装置，其中在时变 信号，特别是具有预定幅度和频率的正弦波被施加到工件，响应于施加的信号，从通过工件和导电元件之间的间隙的电流流动导致的导电元件或电极导出信号，以及 将应用和导出的信号与幅度和相位角进行比较。 提供比较的指示，其结果是施加的和得到的信号之间的振幅差和相位差的组合分别指示工件和导电元件或电极之间的接触间隙的状态。 可以通过包括阴极射线管的模拟方式来执行比较和指示，该阴极射线管提供所施加的和导出的信号的幅度和相位比较的视觉显示，如李萨如图。 比较和指示也可以以数字方式通过提供指示信号的幅度和相位比较的结果的逻辑状态的电路装置来执行，这些逻辑状态可以用于提供相同的视觉指示。
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公开(公告)号：US4427871A
公开(公告)日：1984-01-24
申请号：US298546
申请日：1981-09-01
申请人： Robert W. Drushel , Raymond Bercaw
发明人： Robert W. Drushel , Raymond Bercaw
摘要： A control system for elecctronic discharge machine includes an automatic relay control and a current cutoff control of particular interest.The automatic relay control controls the energy level of machining pulses as a step function of machining cycle period by cutting in or out resistors in a power circuit through the machining gap. Higher frequency pulses are held to a lower current level to avoid power transistor overload.The relay control circuit includes multivibrators, energized at progressively higher values of pulse period by the counters, and an output circuit for each multivibrator which controls one of the relays which vary the gap circuit resistance.The relay control circuit also includes a threshold responsive circuit which senses any change in the several relay controlling output signals and acts to interrupt machining pulses briefly to allow time for relay operation.The current cutoff control circuit detects abnormally low voltage across the machining gap and reduces gap discharge energy level. Pulses referred to as "probe pulses" replace the normal master pulses to control gap discharge time duration and time spacing.A logic circuit controls probe pulse duration relative to master pulse duration. It provides for further lowering probe pulse energy by squelching probe pulses periodically if the master pulse period is below a certain time.
摘要翻译： 电子放电机的控制系统包括自动继电器控制和特别感兴趣的电流截止控制。 自动继电器控制通过在加工间隙中切入或取出电源电路中的电阻，将加工脉冲的能级控制为加工循环周期的阶梯功能。 更高频率的脉冲被保持在较低的电流水平以避免功率晶体管过载。 继电器控制电路包括由计数器以逐渐更高的脉冲周期值激励的多谐振荡器，以及用于控制改变间隙电路电阻的一个继电器的每个多谐振荡器的输出电路。 继电器控制电路还包括阈值响应电路，其检测多个继电器控制输出信号中的任何变化，并且用于短暂中断加工脉冲以允许继电器操作的时间。 电流截止控制电路检测加工间隙两端的异常低电压，并降低间隙放电能量。 被称为“探针脉冲”的脉冲代替正常的主脉冲来控制间隙放电时间和时间间隔。 逻辑电路控制相对于主脉冲持续时间的探针脉冲持续时间。 如果主脉冲周期低于一定时间，则可以周期性地抑制探针脉冲来进一步降低探针脉冲能量。
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公开(公告)号：US4395612A
公开(公告)日：1983-07-26
申请号：US233501
申请日：1981-02-11
申请人： Syunzo Izumiya
发明人： Syunzo Izumiya
CPC分类号： B23H1/024
摘要： A power source circuit for use with an electric discharge machine which machines a workpiece by a discharge produced between an electrode and the work. When an arc forms in a working gap defined between the electrode and the work, the OFF period of a switching element inserted in the charging path of a capacitor for storing discharge energy is increased so that current flowing across the working gap is cut off for a longer period of time than in the case of a normal operation, thereby quickly restoring the insulating qualities of the gap following arcing.
摘要翻译： 一种用于放电机的电源电路，其通过在电极和工件之间产生的放电来对工件进行加工。 当在电极和工件之间形成的工作间隙中形成电弧时，插入用于存储放电能量的电容器的充电路径中的开关元件的截止周期增加，从而切断流过工作间隙的电流 比正常操作的情况更长的时间段，从而快速恢复电弧后间隙的绝缘质量。
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9.发明授权
公开(公告)号：US4392042A
公开(公告)日：1983-07-05
申请号：US237677
申请日：1981-02-24
申请人： Kiyoshi Inoue
发明人： Kiyoshi Inoue
摘要： An electroerosive contouring wire-cutting apparatus using a distilled or deionized water machining medium of a specific resistivity controlled to be in a range between 10.sup.2 and 10.sup.5 ohm-cm, and having abrasive particles of TiC, TiN, B.sub.4 C, BN, SiC, Al.sub.2 O.sub.3 and/or SiO.sub.2 of for example a particle size in the order of microns for delivery by the medium to the machining gap. A high-frequency vibration of a frequency of 1 kHz to 1 MHz is imparted to the wire electrode traveling through the workpiece in a direction transverse to the wire axis to enhance the combined electroerosive and abrasive actions at the machining gap. The machining medium is delivered by a nozzle, retrieved at a collector, and separated into its liquid and solid components in a separator. After deionizing the liquid and extracting the machining products, the abrasive particles and deionized water are mixed and recirculated through the nozzle.
摘要翻译： 一种使用电阻率控制在102和105欧姆 - 厘米之间的具有电阻率的蒸馏水或去离子水加工介质的电雕轮廓线切割设备，并且具有TiC，TiN，B4C，BN，SiC，Al2O3和 /或SiO 2，例如粒径为微米级，用于通过介质输送到加工间隙。 在横向于线轴线的方向上，对穿过工件的线电极施加频率为1kHz至1MHz的高频振动，以增强在加工间隙处的组合电极和研磨作用。 加工介质由喷嘴输送，在收集器处收回，并在分离器中分离成其液体和固体组分。 在去除液体并提取加工产品后，磨粒和去离子水通过喷嘴混合并再循环。
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10.发明授权
公开(公告)号：US4333806A
公开(公告)日：1982-06-08
申请号：US182648
申请日：1980-08-29
申请人： Kiyoshi Inoue
发明人： Kiyoshi Inoue
CPC分类号： B23H7/06
摘要： A method of and apparatus for electroerosively machining a desired contour in a workpiece with a wire electrode transported from a supply to a takeup and, in a path therebetween, supported by a pair of wire guide heads to tightly stretch the axially advancing wire electrode across the workpiece. On at least one side of the two opposite surfaces of the workpiece traversed by the wire electrode there is disposed a template blank secured to the workpiece and having a contour shaped to correspond to the desired contour to be machined in the workpiece for holding the axially advancing wire electrode on the surface of the template contour between the wire guide heads across the workpiece. At least one of the wire guide heads is movable and displaced to cause the machining wire electrode to move transversely to the axis thereof along the contour of the template block so that with the transverse movement of the wire electrode, the desired contour is progressively formed in the workpiece by electroerosion.
摘要翻译： 一种用于电极加工工件中期望轮廓的方法和装置，其中线材从一个电源传送到一个卷绕装置，并且在它们之间的路径中由一对电线导向头支撑，以使轴向前进的电极线横过 工件。 在由电极电极穿过的工件的两个相对表面的至少一侧上设置有固定到工件上的模板坯料，并且具有成形为对应于待加工的待加工轮廓的轮廓，用于保持轴向前进 线电极在模板表面的轮廓线之间导线头横跨工件。 线导向头中的至少一个可移动和移位，使加工线电极沿着模板块的轮廓横向于其轴线移动，使得随着线电极的横向移动，期望的轮廓逐渐形成 工件通过电腐蚀。
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