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    Automatic back up of a numerical control
    1.
    发明授权
    Automatic back up of a numerical control 失效
    自动备份数控

    公开(公告)号：US3889105A

    公开(公告)日：1975-06-10

    申请号：US49926574

    申请日：1974-08-20

    申请人： GEN ELECTRIC

    发明人： SCHNEEKLOTH ULRICH H

    IPC分类号： G05B19/37 ,  G05B19/36 ,  G05B19/18

    CPC分类号： G05B19/371 ,  G05B2219/34163 ,  G05B2219/50111

    摘要： A numerical contouring control capable of backing up along the path commanded by the block of data controlling the machine tool. When the control is in the backup mode of operation, the counting direction of the X and Y integrand counters of the contouring function generator and the direction control signals for the X and Y motion commands are reversed so that the machine tool reverses its direction along the commanded path. The counting direction of the X and Y distance counters is also reversed in the backup mode so that the X and Y distance counters continue to keep track of the X and Y distances from the present commanded position to the end point of the commanded path. The backup mode is manually terminated by the operator or is automatically terminated when the machine tool reaches the beginning of the commanded path. When the machine tool is returned to the normal mode of operation, the machine tool retraces and completes the commanded path.

    摘要翻译： 数字轮廓控制，能够沿着由控制机床的数据块命令的路径进行备份。 当控制器处于备用操作模式时，轮廓函数发生器的X和Y被积函数计数器的计数方向和X和Y运动命令的方向控制信号相反，从而机床沿着该方向反转其方向 命令路径 X和Y距离计数器的计数方向在备份模式下也相反，使得X和Y距离计数器继续跟踪从当前命令位置到命令路径的终点的X和Y距离。 备份模式由操作员手动终止，或者当机床到命令路径的开始时自动终止。 当机床返回到正常运行模式时，机床返回并完成指令路径。

    Interruptable numerical contouring control system with return to path safeguards
    4.
    发明授权
    Interruptable numerical contouring control system with return to path safeguards 失效
    可中断数字轮廓控制系统，具有回路径保护功能

    公开(公告)号：US4055787A

    公开(公告)日：1977-10-25

    申请号：US599591

    申请日：1975-07-28

    申请人： Bruce R. Beadle ,  Eugene A. Olig

    发明人： Bruce R. Beadle ,  Eugene A. Olig

    IPC分类号： B23Q15/00 ,  G05B19/18 ,  G05B19/37 ,  G05B19/4067 ,  G05B7/00

    CPC分类号： G05B19/18 ,  G05B19/371 ,  G05B2219/34163 ,  G05B2219/49394 ,  G05B2219/50111

    摘要： A numerical control contouring system in which successive path segments are executed according to successive blocks of command signals making up a path program, the system being interruptable at any time by a feedhold signal to stop the controlled movable member at a random point on the path. The system is characterized by the improvement of preventing the system from resuming normal operation unless and until the member is returned to the path stopping point after it has been, for any reason, displaced therefrom under manual control or the like. In one embodiment, the axis component displacements of the member from the stopping point are represented by signals created and displayed, and the operator's restart pushbutton switch is rendered ineffective until the displayed displacement signals are reduced to zero. In another embodiment, the axis component displacement signals are utilized to create a non-program block of command signals, and means responsive to a restart signal first cause the member to be moved back to the path stopping point before the system is automatically restored to normal operation. In a third embodiment, after each movement of the controlled member following its arrival at the stopping point, the axis components for that movement are signaled and stored, and means responsive to a restart signal first utilize such stored signals to execute such movements in reverse order and senses to return the member to the path stopping point, and next restore normal operation of the system so that movement along the path is resumed.

    摘要翻译： 一种数字控制轮廓系统，其中根据构成路径程序的命令信号的连续块来执行连续的路径段，该系统可随时通过进给保持信号中断，以在路径上的随机点停止受控的可移动构件。 该系统的特征在于防止系统恢复正常操作的改进，除非和直到在由于任何原因在某些原因在手动控制等之下而从其移位的情况下返回到路径停止点。 在一个实施例中，构件从停止点的轴元件位移由产生和显示的信号表示，并且操作者的重启按钮开关变得无效，直到显示的位移信号被减小为零。 在另一个实施例中，轴分量位移信号用于产生非编程命令信号块，并且响应重启信号的装置首先使得成员在系统自动恢复正常之前被移回到路径停止点 操作。 在第三实施例中，受控构件在其到达停止点之后的每次移动之后，用于该运动的轴分量被发信号并被存储，并且响应重启信号的装置首先利用这样存储的信号以相反的顺序执行这种运动 并且感觉将构件返回到路径停靠点，并且接下来恢复系统的正常操作，使得沿着路径的移动被恢复。