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    Open loop control apparatus and associated method for cutting sheet material
    1.
    发明授权
    Open loop control apparatus and associated method for cutting sheet material 失效
    开环控制装置及相关的切割板材的方法

    公开(公告)号：US5418711A

    公开(公告)日：1995-05-23

    申请号：US124926

    申请日：1993-09-21

    申请人： Robert Pomerleau ,  Zdenek Zeman ,  Roy McDougall ,  Joseph Vivirito

    发明人： Robert Pomerleau ,  Zdenek Zeman ,  Roy McDougall ,  Joseph Vivirito

    IPC分类号： D06H7/00 ,  B26D5/00 ,  B26D7/24 ,  B26F1/38 ,  G05B13/02 ,  G06F15/46

    CPC分类号： B26D5/005 ,  B26D5/00 ,  B26D7/24 ,  B26F1/382 ,  B26D7/018 ,  Y10S706/904

    摘要： An expert system containing a built-in application knowledge is used with a controllable cutting system to automatically seek an optimal feed rate during cutting in response to various of a number of possible changing system cutting parameters wherein a programmable controller defines and specifies a preset configuration file defining the specific cutting system control parameters for directing the operation of the cutting system in accordance with a contour defining a path be followed by a cutter carried by the cutting system and which cutter is moved in an X, Y and C coordinate space across the cutting surface of the cutting system. The X, Y and C axes motors are driven with a commanded current to move the cutter with a velocity defined in the configuration file. The cutting force developed by the cutter is determined at predetermined portions of the contour to determine the toughness of the spread and the actual cutting force is compared to the optimal cutting force with the feed rate being adjusted to increase when the actual force is below the expected force and decrease when the actual force is above the expected force and to shut down the cutting system to rebuilt the contours when the actual force exceeds the expected force by a predetermined magnitude. The feed rate is computed for the contour taking into account information concerning the toughness of the material being cut, the sharpened data, the vacuum level, the knife motor current and the knife velocity.

    摘要翻译： 包含内置应用知识的专家系统与可控切割系统一起使用，以响应于各种可能的改变系统切割参数自动寻找切割期间的最佳进给速率，其中可编程控制器定义并指定预设配置文件 定义特定的切割系统控制参数，用于根据轮廓来定义切割系统的操作，该轮廓限定由切割系统承载的切割器所遵循的路径，并且哪个切割器在X，Y和C坐标空间中跨越切割 切割系统的表面。 X，Y和C轴电机用指令电流驱动，以配置文件中定义的速度移动刀具。 在轮廓的预定部分确定由切割器产生的切割力，以确定展开的韧性，并且将实际切割力与最佳切割力进行比较，并且当实际力低于预期时，进给速率被调整为增加 当实际力超过预期的力并且当实际力超过预期的力预定的大小时关闭切割系统来重建轮廓，力和减小。 考虑到关于被切割材料的韧性，磨削数据，真空度，刀马达电流和刀速度的信息，计算轮廓的进给速率。

    Contour builder
    2.
    发明授权
    Contour builder 失效
    轮廓建设者

    公开(公告)号：US5416716A

    公开(公告)日：1995-05-16

    申请号：US40160

    申请日：1993-03-30

    申请人： Zdenek Zeman ,  Adriano Baglioni

    发明人： Zdenek Zeman ,  Adriano Baglioni

    IPC分类号： G05B19/41 ,  G06F15/46

    CPC分类号： G05B19/41 ,  G05B2219/34098 ,  G05B2219/43129 ,  G05B2219/45044 ,  G05B2219/49164

    摘要： A method of moving a cutter blade along a contour defined by a plurality of segments each connected end to end with one another and having at least one angle disposed between consecutively ordered segments calculates a distance from a corner point along one and another line segments and fits an arc to be followed by the blade between the line segments for eliminating repeated high force short time system inputs and replacing them with lower force longer duration inputs to affect the reduction and mechanical wear and the reduction of shocks to the system. The method further includes a process by which individual velocity profiles are determined for each contour in order to run the system at maximum velocity at all times during the course of a cutting operation.

    摘要翻译： 沿着由多个段限定的轮廓移动切割刀片的方法，每个段彼此端对端彼此连接并且具有设置在连续有序段之间的至少一个角度，计算从沿着一个线段和另一个线段的角点的距离， 用于消除重复的高强度短时间系统输入并用较小的力较长持续时间输入替换它们的线段之间的叶片应遵循的电弧，以影响减小和机械磨损以及减少对系统的冲击。 该方法还包括一个过程，通过该过程为每个轮廓确定各个速度分布，以便在切割操作过程中始终以最大速度运行系统。