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公开(公告)号：US5216217A
公开(公告)日：1993-06-01
申请号：US821808
申请日：1992-01-17
申请人： Hiroaki Morishita , Yutaka Terada , Kazuo Tsurumoto , Akiyasu Ito
发明人： Hiroaki Morishita , Yutaka Terada , Kazuo Tsurumoto , Akiyasu Ito
CPC分类号： B23H7/104
摘要： Accurate control of the tension of a wire electrode in a wirecut electrical discharge machine is achieved by eliminating a direct-current (DC) component from a speed difference signal between a braking section and a recovery section of the machine. The DC component of the speed signal which is eliminated is associated with the stretching of the wire electrode while under tension. As a result, the tension can be maintained constant dynamically as well as statically, thereby improving machining accuracy.
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公开(公告)号：US5166490A
公开(公告)日：1992-11-24
申请号：US591631
申请日：1990-10-02
摘要： The wire cut electric discharge machining apparatus includes a tension applying device for tensing a wire electrode, an instruction signal generating device for providing a movement instruction and a tension instruction for a wire electrode, the speed detecting device for detecting an actual speed of the wire electrode, comparison circuitry for comparing the actual speed detected by the speed detecting device with an instructed speed of the movement instruction provided by the instruction signal generating device and the instruction value correcting device for correcting the tension instruction value which is provided by the instruction signal generating device according to a result of comparison of the comparison device. Hence, in the wire cut electric discharge machining apparatus, the tension of the wire electrode can be controlled with high accuracy.
摘要翻译： 线切割放电加工装置包括用于拉紧线电极的张力施加装置，用于提供线电极的移动指令和张力指令的指令信号生成装置，用于检测线电极的实际速度的速度检测装置 比较电路，用于将由速度检测装置检测的实际速度与由指令信号产生装置提供的移动指令的指令速度和用于校正指令信号产生装置提供的张力指令值的指令值校正装置 根据比较装置的比较结果。 因此，在线切割放电加工装置中，可以高精度地控制线电极的张力。
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3.发明授权
公开(公告)号：US5015814A
公开(公告)日：1991-05-14
申请号：US546178
申请日：1990-06-29
申请人： Hiroaki Morishita
发明人： Hiroaki Morishita
摘要： A core removing device for a wirecut electrical discharge machine having top and bottom universal movement tables that control the orientation of respective top and bottom guides, each guide being located generally within a nozzle which is surrounded by permanent magnet or an electromagnet. The guides and nozzles are disposed on opposite sides of a workpiece and guide a wire electrode that is used to perform an EDM operation as it travels along a cross section of the workpiece during machining. The relative orientation of the top and bottom guides will determine the angle at which the workpiece is cut and the shape of the remaining core. Upon completion of the machining operation, the core may be removed from the top surface or bottom surface of the workpiece by proper positioning of the guide nozzle and the controlled energization of the respective magnet, in the case of electromagnets, to attract and hold the core.
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4.发明授权
公开(公告)号：US5556554A
公开(公告)日：1996-09-17
申请号：US377091
申请日：1995-01-23
申请人： Hiroaki Morishita
发明人： Hiroaki Morishita
CPC分类号： B23H7/02
摘要： A method and apparatus for wire-cut electrical discharge machining which allows bridging members for securing a core to a workpiece after cutting to be fitted, without interference with adjacent cores, to ensure efficient machining when multiple cores are to be removed from a single workpiece. The disclosed procedure permits machining which can automatically avoid interference of bridging members with an upper nozzle and can automatically perform efficient machining up to finishing.
摘要翻译： 一种用于线切割放电加工的方法和装置，其允许桥接构件在切割之后将芯固定到工件上，而不会干扰相邻的芯，以确保当从单个工件移除多个芯时的有效加工。 所公开的方法允许加工，其可以自动避免桥接构件与上部喷嘴的干涉，并且可以自动执行高效加工直至精加工。
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5.发明授权Method of positioning a wire electrode and a workpiece relative to each other in a wire cut electric discharge machine 失效在线切割放电加工机中定位线电极和工件相对于彼此的方法
公开(公告)号：US4985608A
公开(公告)日：1991-01-15
申请号：US445056
申请日：1989-12-04
申请人： Hiroaki Morishita , Jun Aramaki , Masao Tomisawa
发明人： Hiroaki Morishita , Jun Aramaki , Masao Tomisawa
CPC分类号： B23H7/26 , B23H7/065 , B23H2500/20
摘要： In a method of positioning a wire electrode and a workpiece relative to each other in a wire cut electric discharge machine, the wire electrode is stopped under tension, the wire electrode and the workpiece are moved relative to each other, and when the wire electrode and the workpiece are brought into contact with each other, the relative movement is stopped to detect the relative position of the wire electrode and the workpiece, whereby the wire electrode and the workpiece can be positioned relative to each other with high accuracy and reproducibility.
摘要翻译： 在线切割放电加工机中，使线电极和工件相对定位的方法中，线电极在张力下停止，线电极和工件相对移动，并且当线电极和 工件相互接触，相对移动停止以检测线电极和工件的相对位置，由此可以高精度和再现性相对于彼此定位线电极和工件。
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公开(公告)号：US4973812A
公开(公告)日：1990-11-27
申请号：US436514
申请日：1989-11-14
申请人： Jun Aramaki , Hiroaki Morishita
发明人： Jun Aramaki , Hiroaki Morishita
CPC分类号： B23H7/06
摘要： A wire electrodischarge machine comprises a cross table on which a workpiece is mounted and which is driven in a horizontal plane. In X and Y directions, upper and lower dielectric fluid nozzles which are disposed above and below the workpiece, a nozzle drive device for driving one of the upper and lower nozzles within a horizontal plane, in U and V directions, in order to conduct taper machining, and a verical shaft for supporting the nozzle drive device and the above-mentioned one of the upper and lower nozzles. The axis of the nozzle which is driven by the nozzle drive device is disposed, even during the taper machining, within the area defined by the periphery of the vertical shaft at which the vertical shaft is supported such that it can slide vertically.
摘要翻译： 线放电机包括十字台，其上安装有工件并且在水平面中被驱动。 在X和Y方向上，设置在工件上方和下方的上部和下部介质流体喷嘴，用于在U和V方向上在水平面内驱动上部和下部喷嘴中的一个的喷嘴驱动装置，以便使锥度 以及用于支撑喷嘴驱动装置和上述上下喷嘴之一的真空轴。 由喷嘴驱动装置驱动的喷嘴的轴线即使在锥形加工期间也被设置在垂直轴的周边所限定的区域内，垂直轴被支撑，使得其可以垂直滑动。
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