| 摘要 |
PURPOSE: A device and a method for laser welding are provided to excellently weld or combine an external core of a metal bellows with a fast production speed. CONSTITUTION: A laser welder(10) contains an arbor(12) to rotate many bellows diaphragms(14). An optical tracking device is offered to optically track the position of external joints of the diaphragms. A beam steering device irradiates laser beams to weld the external joints by reacting to the optical tracking device. A CCD(Charge Coupled Device) camera(17) is contained in the optical tracking device. Shadow images of the joints are obtained by containing an illumination source(20) in the optical tracking device. A processor(22) operates the camera(17) and the beam steering device and a display(23) displays the shadow images by connecting with the processor(22). The laser beams are arranged horizontally. An X-Y table(37) indexes the joints and sets distances to control the focus of the laser. |
