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    Synchronous control method and apparatus therefor
    2.
    发明授权
    Synchronous control method and apparatus therefor 失效
    同步控制方法及其装置

    公开(公告)号：US5047702A

    公开(公告)日：1991-09-10

    申请号：US513818

    申请日：1990-04-25

    申请人： Yoshimaro Hanaki ,  Masayuki Nashiki

    发明人： Yoshimaro Hanaki ,  Masayuki Nashiki

    IPC分类号： B23Q15/00 ,  G05B19/416 ,  H02P5/52

    CPC分类号： G05B19/416 ,  G05B2219/45124 ,  G05B2219/50216

    摘要： During synchronous control, a first servo motor controls a position of a first spindle system and a second spindle system having a second servo motor makes calculations for estimating the torque required for the second servo motor and gives a command, so that, when a rotational phase difference between the two servo motors exceeds a predetermined value, the rotational phase difference is made equal to zero by a rotational phase difference signal. A torque command to the first servo motor, an inertia ratio between the first and second servo motors, the rotational resistance of the two spindle systems and so on are input to a torque estimator which makes calculations for estimating the torque required for the second servo motor. The estimated torque is used to control the second servo motor. The two servo motors thus generate the appropriate torque when a work held between the two spindle systems is processed. It is therefore possible to significantly reduce the torsional torque applied to the work. In addition, since the rotational phase difference between the two servo motors of two spindle systems is reduced, synchronous control with high precision can be effected even if the work has a low rigidity.

    摘要翻译： 在同步控制期间，第一伺服电动机控制第一主轴系统的位置，并且具有第二伺服电动机的第二主轴系统进行计算以估计第二伺服电动机所需的转矩并给出命令，使得当旋转相位 两个伺服电动机之间的差超过预定值，通过旋转相位差信号使旋转相位差等于零。 向第一伺服电动机的转矩指令，第一伺服电动机和第二伺服电动机之间的惯量比，两个主轴系统的旋转阻力等输入到转矩估计器，该估计器进行用于估计第二伺服电动机所需的转矩的计算 。 估计转矩用于控制第二伺服电机。 因此，当处理两个主轴系统之间的工件时，两个伺服电动机产生适当的转矩。 因此，可以显着地减小施加到工件上的扭矩。 此外，由于两个主轴系统的两个伺服电动机之间的旋转相位差减小，即使工作刚度低，也能够实现高精度的同步控制。

    Numerical control apparatus with superimposing control function
    3.
    发明授权
    Numerical control apparatus with superimposing control function 失效
    具有重叠控制功能的数控机床

    公开(公告)号：US5270941A

    公开(公告)日：1993-12-14

    申请号：US645735

    申请日：1991-01-25

    申请人： Yoshimaro Hanaki ,  Keiichi Ota

    发明人： Yoshimaro Hanaki ,  Keiichi Ota

    IPC分类号： B23Q15/00 ,  G05B19/18 ,  G05B19/19 ,  G06F15/46

    CPC分类号： G05B19/19 ,  G05B19/182 ,  G05B2219/41457 ,  G05B2219/50015

    摘要： A numerical control apparatus for controlling a numerical lathe has a superimposing Z-axis control function in which, when a work is machined by the control of movement of a tool holder in the Z2- and X2-axis directions driving movement of a spindle in the Z1-axis direction, the variance of the position of the spindle in the Z1-axis direction as detected by a Z1-axis position detector is added to the value derived from a Z2-axis position detector which detects the position of the tool holder in the Z2-axis direction, and the position of the second tool holder in the Z2-axis direction is controlled using the result of the addition as the feedback value of the Z2-axis position of the second tool holder. According to this arrangement, the variance of the position of the spindle in the Z1-axis direction is always added to the detection value of the tool holder position in the Z2-axis direction, thus producing the same effect as that produced by an arrangement in which tool holders and Z2-axis driving mechanism and X2-axis driving mechanism for controlling the positions of these tool holders are carried by the spindle so that the tool holders, as well as the Z2-axis and X2-axis driving mechanisms are automatically moved in accordance with the movement of the spindle in the X1-axis direction.

    摘要翻译： 用于控制数值车床的数值控制装置具有重叠的Z轴控制功能，其中当通过控制工具夹持器在Z2-和X2轴方向上的移动来加工作业时，驱动主轴的移动 Z1轴方向，将由Z1轴位置检测器检测到的主轴在Z1轴方向上的位置的方差加到从检测刀架位置的Z2轴位置检测器得到的值 Z2轴方向和第二刀架在Z2轴方向上的位置通过相加的结果被控制为第二刀架的Z2轴位置的反馈值。 根据该结构，主轴在Z1轴方向上的位置的变化总是与Z2轴方向上的刀架位置的检测值相加，因此产生与主轴的位置相同的效果 用于控制这些刀架的位置的刀架和Z2轴驱动机构和X2轴驱动机构由主轴承载，使得刀架以及Z2轴和X2轴驱动机构自动移动 根据主轴在X1轴方向的移动。

    Numerically controlled lathe
    4.
    发明授权
    Numerically controlled lathe 失效
    数控车床

    公开(公告)号：US5315526A

    公开(公告)日：1994-05-24

    申请号：US772392

    申请日：1991-10-07

    申请人： Yutaka Maeda ,  Yoshimaro Hanaki ,  Seiichi Iwasaka

    发明人： Yutaka Maeda ,  Yoshimaro Hanaki ,  Seiichi Iwasaka

    IPC分类号： B23B21/00 ,  B23Q1/60 ,  G05B19/18 ,  G06F15/46

    CPC分类号： G05B19/184 ,  B23Q1/601 ,  G05B2219/41268 ,  G05B2219/41457 ,  G05B2219/42209 ,  Y02P90/265 ,  Y10T82/2535

    摘要： A numerically controlled lathe capable of machining a workpiece by numerically controlling a machining table provided with a machining tool. In order to prevent a local uneven abrasion of parts, which make a sliding contact, due to a mass production of workpieces having a simple form or a machining in a non-circular shape, there are provided a main carriage and a sub carriage. A machining tool is positioned on the sub carriage, and the sub carriage traverses on the main carriage along an axis which the main carriage and the sub carriage have in common. When a circular machining is carried out, the main carriage and the sub carriage respectively traverse by an equal amount in directions opposite to each other, and the cutting tool is constantly maintained at a position designated by an instruction. At the time of a non-circular machining, the main carriage and the sub carriage respectively traverse in directions opposite to each other; moreover, the sub carriage rapidly traverses in response to an instruction designating a location of the tool. Thus parts which make a sliding contact are evenly worn out by shifting the relative positions of both the main and sub carriages.

    摘要翻译： 一种能够通过数控加工工具加工台加工工件的数控车床。 为了防止由于大量生产具有简单形状的工件或以非圆形形式的机加工而产生滑动接触的部件的局部不均匀磨损，设置有主滑架和副滑座。 加工工具位于副托架上，副托架沿着主托架和副托架具有共同的轴线在主托架上运动。 当执行圆形加工时，主托架和副托架分别在彼此相反的方向上横过相等的量，并且切割工具始终保持在由指令指定的位置。 在非圆形加工时，主托架和副托架分别沿彼此相反的方向横移; 此外，副托架响应于指示工具的位置的指令而快速地穿过。 因此，通过移动主滑架和副滑座的相对位置，使滑动接触部件均匀地磨损。

    Interference checking method and apparatus for numerical control machining tool
    6.
    发明授权
    Interference checking method and apparatus for numerical control machining tool 失效
    数控加工工具的干扰检查方法和装置

    公开(公告)号：US5339015A

    公开(公告)日：1994-08-16

    申请号：US969965

    申请日：1992-11-02

    申请人： Yoshimaro Hanaki ,  Kyoichi Yamamoto

    发明人： Yoshimaro Hanaki ,  Kyoichi Yamamoto

    IPC分类号： G05B19/4061 ,  G05B19/4069 ,  G05B19/4093 ,  G05B19/18

    CPC分类号： G05B19/4061

    摘要： A coordinate data converter converts plural shape data of the movable parts from a direction and of the parts that may interfere with the movable parts into the shape data of the three-dimensional coordinate system unique to the machining system, the number of structural shape elements of those parts being different from one another. A generator projects thus converted shape data on the three planes of said three-dimensional coordinate system; an arithmetic operator determines whether or not projected data overlap each other in each of the three planes, and a detector determines that an interference has occurred if the projection data on respective planes overlap and if projected data based on the shape data overlap in all of the three planes. Interferences can be thereby precisely checked in a short period of time even if a tool used for machining with an NC machine tool moves in a complicated manner or has a complex shape because it can store the shape of movable parts and of parts which may interfere with the movable parts including simple shapes to detailed shapes so as to permit the successive checking thereof.

    摘要翻译： 坐标数据转换器将可移动部分的多个形状数据从可能与可移动部分干涉的部分的方向和各个部分转换成加工系统特有的三维坐标系的形状数据，结构形状元素的数量 那些部分彼此不同。 发电机在所述三维坐标系的三个平面上投影形状数据， 算术运算器确定在三个平面中的每一个中投影数据是否彼此重叠，并且如果各个平面上的投影数据重叠，则检测器确定发生了干扰，并且如果基于形状数据的投影数据在所有 三架飞机 即使用NC机床加工的工具以复杂的方式移动或具有复杂的形状，因此可以在短时间内精确地检查干扰，因为它可以存储可移动部件和可能干扰的部件的形状 可移动部件包括简单的形状以形成详细的形状，以允许其连续检查。