公开(公告)号：US6153853A

公开(公告)日：2000-11-28

申请号：US992574

申请日：1997-12-17

申请人： Iwao Maruyama ,  Kenji Makihara ,  Kazuo Isogai

发明人： Iwao Maruyama ,  Kenji Makihara ,  Kazuo Isogai

IPC分类号： B23K26/04 ,  B23K26/08 ,  B23K26/10 ,  B23K37/047 ,  B23K26/22

CPC分类号： B23K26/0884 ,  B23K26/04 ,  B23K37/047

摘要： The position of a workpiece delivered into a welding station by a feed mechanism is detected by CCD cameras of position detectors, and a positioning error of the workpiece with respect to a reference position is determined on the basis of the detected position. After training data for welding robots is corrected on the basis of the determined positioning error, scan heads on distal ends of the welding robots are inserted into the workpiece. After the scan heads have been inserted to predetermined positions in the workpiece, only the scan heads are actuated to weld the workpiece at a plurality of locations thereof with a laser beam.

摘要翻译： 通过位置检测器的CCD照相机检测由进给机构输送到焊接站中的工件的位置，并且基于检测到的位置确定工件相对于参考位置的定位误差。 在确定的定位误差的基础上校正焊接机器人的训练数据后，将焊接机器人的末端的扫描头插入工件。 在将扫描头插入到工件中的预定位置之后，只有扫描头被致动以在其多个位置处用激光束焊接工件。

公开(公告)号：US6127647A

公开(公告)日：2000-10-03

申请号：US111863

申请日：1998-07-08

申请人： Kazuhide Matsuo ,  Takanori Fujii ,  Kenji Makihara

发明人： Kazuhide Matsuo ,  Takanori Fujii ,  Kenji Makihara

IPC分类号： G02B26/08 ,  B23K26/00 ,  B23K26/067 ,  B23K26/08 ,  B23K26/20

CPC分类号： B23K26/0673 ,  B23K26/067

摘要： A laser beam welding apparatus has a first laser oscillator for applying a laser beam to a right-hand automobile door, a second laser oscillator for applying a laser beam to a left-hand automobile door, and first through fourth laser beam path changing mechanisms for changing the laser beam path of the laser beam from the first laser oscillator in the event of a failure of the second laser oscillator, and changing the laser beam path of the laser beam from the second laser oscillator in the event of a failure of the first laser oscillator. Even when one of the laser beam oscillators fails to operate due to a malfunction, an overall welding line combined with the laser beam welding apparatus does not need to be shut down, and the laser beam welding apparatus can smoothly and efficiently weld the workpieces.

摘要翻译： 激光束焊接装置具有用于将激光束施加到右手车门的第一激光振荡器，用于将激光束施加到左手车门的第二激光振荡器，以及用于将激光束施加到左手车门的第一激光束路径改变机构， 在第二激光振荡器发生故障的情况下，改变来自第一激光振荡器的激光束的激光束路径，并且在第一激光振荡器发生故障的情况下改变来自第二激光振荡器的激光束的激光束路径 激光振荡器。 即使其中一个激光束振荡器由于故障而不能操作，也不需要关闭与激光束焊接装置组合的整体焊接线，激光束焊接装置可以平滑有效地焊接工件。

公开(公告)号：US6072149A

公开(公告)日：2000-06-06

申请号：US18892

申请日：1998-02-05

申请人： Iwao Maruyama ,  Kazuhide Matsuo ,  Takanori Fujii ,  Kenji Makihara

发明人： Iwao Maruyama ,  Kazuhide Matsuo ,  Takanori Fujii ,  Kenji Makihara

IPC分类号： B23K26/00 ,  B23K26/04 ,  B23K26/06 ,  B23K26/067 ,  B23K26/08 ,  B23K26/10 ,  B23K26/20 ,  B23K26/22 ,  B23K26/24

CPC分类号： B23K26/0673 ,  B23K26/04 ,  B23K26/06 ,  B23K26/067 ,  B23K26/0869 ,  B23K26/0892 ,  B23K26/10

摘要： After a workpiece introduced into a welding station by a feed mechanism is positioned and fixed in the welding station, the workpiece is welded by laser beams guided by scan heads. Each laser beam is applied from one of the scan heads to a location on the workpiece through a beam path switching mirror of a beam path switcher to weld the location on the workpiece. Thereafter, the beam path switching mirror is retracted to guide the laser beam from another one of the scan heads to another location on the workpiece to weld the other location on the workpiece.

摘要翻译： 在通过进给机构引入焊接站的工件被定位并固定在焊接站中之后，通过由扫描头引导的激光束焊接工件。 每个激光束从扫描头之一通过光束路径切换器的光束路径切换镜施加到工件上的位置，以焊接工件上的位置。 此后，光束路径切换镜退回以将来自另一个扫描头的激光束引导到工件上的另一位置，以焊接工件上的另一个位置。