公开(公告)号：US4567342A

公开(公告)日：1986-01-28

申请号：US507494

申请日：1983-06-24

申请人： Ryoichiro Nozawa ,  Mitsuo Kinoshita ,  Teruyuki Matsumura

发明人： Ryoichiro Nozawa ,  Mitsuo Kinoshita ,  Teruyuki Matsumura

IPC分类号： B23H1/02 ,  B23H7/18 ,  G05B9/02

CPC分类号： B23H7/18

摘要： A system for reversing the direction of an electric discharge machine in response to a short-circuit signal. A controller responds to the short circuit signal by generating a command signal with a magnitude greater than a stored error between a commanded value and a number of feedback pulses produced by rotation of a motor which drives the electrode. The sign of the generated command signal is opposite to that of the stored error so that the stored error is converted into a value capable of reversing the direction of the electrode without delay.

摘要翻译： 一种用于根据短路信号反转放电机的方向的系统。 控制器通过产生具有大于存储的命令信号的误差的命令信号来响应于短路信号，该命令信号与通过驱动电极的电机的旋转产生的反馈脉冲数之间产生。 所生成的命令信号的符号与存储的误差的符号相反，使得存储的误差被转换成能够不延迟地反转电极的方向的值。

公开(公告)号：US4520253A

公开(公告)日：1985-05-28

申请号：US414364

申请日：1982-08-26

申请人： Gotaro Gamo ,  Mitsuo Kinoshita ,  Haruki Obara

发明人： Gotaro Gamo ,  Mitsuo Kinoshita ,  Haruki Obara

IPC分类号： B23H7/06 ,  B23P1/08

CPC分类号： B23H7/065

摘要： There is disclosed a method of controlling a wire-cut electric discharge machine to correct cutting errors due to flexing of a wire electrode caused by electric discharge. A processing unit processes data (x.sub.1, y.sub.1, r.sub.1, x.sub.2, y.sub.2) on a corner shape which is given by a paper tape and data on an amount of flexing (D.sub.0) upon rectilinear cutting for calculating a corrected radius of curvature r.sub.1 ' of the corner, and determines the center Pc of an arc having the radius of curvature r.sub.1 ' and contacting straight lines (l.sub.1, l.sub.2) and points of contact Pt, Pt' to move the wire electrode along a straight line P.sub.1 Pt, an arc PtPt', and a straight line Pt'P.sub.3 to thereby correct the cutting error at the corner.

摘要翻译： PCT No.PCT / JP81 / 00422 Sec。 371日期1982年8月26日 102（e）日期1982年8月26日PCT提交1981年12月28日PCT公布。 出版物WO82 / 02356 日期：1982年7月22日。公开了一种控制线切割放电机的方法，以校正由放电引起的线电极弯曲引起的切割误差。 处理单元处理由纸带给出的拐角形状的数据（x1，y1，r1，x2，y2），并且在直线切割时对弯曲量（D0）的数据进行处理，以计算校正曲率半径r1' 并且确定具有曲率半径r1'并接触直线（11,112）和接触点Pt，Pt'的圆弧的中心Pc，以使线电极沿着直线P1Pt移动，电弧PtPt' 和直线Pt'P3，从而校正拐角处的切割误差。

公开(公告)号：US4338505A

公开(公告)日：1982-07-06

申请号：US173612

申请日：1980-07-30

申请人： Hideo Katsube ,  Gotaro Gamo ,  Mitsuo Kinoshita ,  Yoshiyuki Nomura ,  Kanemasa Okuda

发明人： Hideo Katsube ,  Gotaro Gamo ,  Mitsuo Kinoshita ,  Yoshiyuki Nomura ,  Kanemasa Okuda

IPC分类号： B23H7/02 ,  B23H7/06 ,  B23H7/10 ,  G05B19/18 ,  G05B19/4067 ,  B23P1/02

CPC分类号： G05B19/182 ,  B23H7/065 ,  B23H7/10 ,  G05B19/4067 ,  G05B2219/37245 ,  G05B2219/45221 ,  G05B2219/50095 ,  G05B2219/50103

摘要： A method and apparatus for restoring a broken wire electrode in a wire electrode-type electric discharge machine for machining a workpiece into a desired shape while the workpiece is moved relative to the wire electrode on the basis of machining command data. For effecting the restoration of the wire electrode, memory means are provided for storing the relative machining starting position of the workpiece and the wire electrode at the machining starting point, and the relative wire electrode breakage position of the workpiece and the wire electrode when the wire electrode breaks. After the wire electrode breaks the relative position of the workpiece and the wire electrode is brought into coincidence with the machining starting position on the basis of information indicative of the machining starting position and the wire electrode breakage position. After the wire electrode is returned to a feed system therefor, the workpiece is again moved relative to the wire electrode from the machining starting point on the basis of the machine command data. The relative position of the workpiece and the wire electrode is made to coincide with the wire electrode breakage position, after which the discharge machining operation is resumed.

摘要翻译： 一种用于在线电极式放电机中恢复断线电极的方法和装置，用于在工件相对于线电极移动时根据加工指令数据将工件加工成所需形状。 为了实现线电极的恢复，存储装置用于存储加工起点处的工件和线电极的相对加工起始位置以及工件和线电极的相对线电极断裂位置，当线 电极断裂。 在线电极断开工件的相对位置之后，线电极基于表示加工起始位置和线电极破损位置的信息与加工起始位置一致。 在线电极返回到馈电系统之后，基于机器指令数据，工件再次从加工起点相对于线电极移动。 使工件和线电极的相对位置与线电极断裂位置一致，之后恢复放电加工操作。