公开(公告)号：WO2014063153A1

公开(公告)日：2014-04-24

申请号：PCT/US2013/065930

申请日：2013-10-21

Applicant: IPG PHOTONICS CORPORATION

Inventor： FOMIN, Valentin ,  STAROVOYTOV, Anton ,  ABRAMOV, Andrey ,  GAPONTSEV, Valentin ,  FUCHS, Artjom ,  SCHRAMM, Ingo ,  SCHERBAKOV, Eugene ,  MAMEROW, Holger

IPC: B23K26/08 ,  B23K26/24 ,  B23K26/00 ,  B23K26/02

CPC classification number: B23K26/0884 ,  B23K26/032 ,  B23K26/0626 ,  B23K26/142 ,  B23K26/1462 ,  B23K26/22

Abstract: A robotically operated laser seam stepper is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head. The laser seam stepper further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the stepper diametrically opposite to the optical head. The inner surface of the displaceable arm defines a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and by a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column. The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris from the tunnel.

Abstract translation: 机器人操作的激光缝步进器配置有沿着纵向轴线延伸并由轻质材料制成的细长支撑柱。 支撑板可移动地安装到柱上，同时在其上支撑设置有光学元件的光学头。 光学器件被配置为沿着通过光学头的保护窗口的焊接区域的路径引导激光束。 激光焊缝步进器进一步构造成具有安装到支撑板并沿着与光学头径向相反的步进器的纵向轴线延伸的第一臂。 可移动臂的内表面限定了与光学头对准并且被激光束轴向移动的通道，第一轴向流动的加压气体介质流和第二轴向流动的气体介质流。 响应于在塔中产生的压力梯度，以比第一流低的压力进入隧道的第二流不会在塔内产生涡流。 第一和第二物流通过隧道的下游端离开焊接区旁边。 当溪流流出时，它们从隧道中进行焊接碎屑。

公开(公告)号：WO2014063151A1

公开(公告)日：2014-04-24

申请号：PCT/US2013/065924

申请日：2013-10-21

Applicant: IPG PHOTONICS CORPORATION ,  VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： FOMIN, Valentin ,  STAROVOYTOV, Anton ,  ABRAMOV, Andrey ,  GAPONTSEV, Valentin ,  FUCHS, Artjom ,  SCHRAMM, Ingo ,  SCHERBAKOV, Eugene ,  MAMEROW, Holger ,  MICHALZIK, Andreas

IPC: B23K26/24

CPC classification number: B23K26/0096 ,  B23K26/032 ,  B23K26/082 ,  B23K26/142 ,  B23K26/22 ,  B23K26/24 ,  B23K26/705

Abstract: A hand displaceable laser welding gun is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head which is provided with beam-guiding optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head. The laser welding gun further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the gun diametrically opposite to the optical head. The inner surface of the displaceable arm has an inner surface defining a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column. The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris flowing within the tunnel before the debris reach the protective window of the optical head.

Abstract translation: 手可移动激光焊枪配置有沿着纵向轴线延伸并由轻质材料制成的细长支撑柱。 支撑板可移动地安装到柱上，同时在其上支撑设置有光束引导光学器件的光学头。 光学器件被配置为沿着通过光学头的保护窗口的焊接区域的路径引导激光束。 激光焊枪还具有安装到支撑板并沿着与光学头直径相对的枪的纵向轴线延伸的第一臂。 可移动臂的内表面具有限定隧道的内表面，其与光学头对准并且被激光束轴向穿过，第一轴向流动的加压气体介质流和第二轴向流动的气体介质流。 响应于塔中产生的压力梯度，第二流以比第一流低的压力进入隧道，不会在塔内产生涡流。 第一和第二物流通过邻近焊接区的隧道的下游端部流出。 当流流出时，它们在碎屑到达光学头的保护窗口之前，在隧道内进行焊接碎屑流动。