公开(公告)号：US20160059351A1

公开(公告)日：2016-03-03

申请号：US14831238

申请日：2015-08-20

申请人： FANUC Corporation

发明人： Kouichi MIYASHITA ,  Takeshi MOCHIDA

IPC分类号： B23K26/08 ,  B23K26/36

CPC分类号： B23K26/048

摘要： When an operation is performed in a direction (Z-axis direction) in which a machining head is brought closer to workpiece, a numerical controller that controls a laser beam machine avoids a collision of the machining head with the workpiece by switching to gap control when a gap sensor detects a gap amount between the machining head and the workpiece. At this point, whether to perform the operation to bring the machining head closer to the workpiece by gap control using a detection value of the gap sensor or by moving the machining head to a position determined by parameters can be selected using a mode switching unit.

摘要翻译： 当在加工头靠近工件的方向（Z轴方向）上进行操作时，控制激光束机的数值控制器通过切换到间隙控制来避免加工头与工件的碰撞， 间隙传感器检测加工头和工件之间的间隙量。 此时，可以使用模式切换单元来选择使用间隙传感器的检测值通过间隙控制使加工头靠近工件的操作，或者通过将加工头移动到由参数确定的位置来进行操作。

公开(公告)号：US20170304937A1

公开(公告)日：2017-10-26

申请号：US15493351

申请日：2017-04-21

申请人： FANUC CORPORATION

发明人： Kouichi MIYASHITA ,  Takeshi MOCHIDA

IPC分类号： B23K26/02 ,  B23K26/035

CPC分类号： B23K26/02 ,  B23K26/035 ,  B23K26/048 ,  B23K26/0884 ,  G05B19/4163 ,  G05B2219/45041

摘要： A unit vector calculating unit of a laser machining device obtains a unit vector based on respective current rotational positions of an A-axis and a B-axis. A movement command calculating unit, a speed command calculating unit, or a torque command calculating unit generates a command signal for maintaining a gap amount at a constant value, based on the unit vector, and the gap amount between a machining nozzle and a workpiece. With a servo control unit, on the basis of the command signal, an X-axis motor, a Y-axis motor, and a Z-axis motor are controlled, whereby the machining nozzle is moved relatively in three-dimensional directions with respect to the workpiece.