公开(公告)号：US3694617A

公开(公告)日：1972-09-26

申请号：US3694617D

申请日：1970-07-31

Applicant: DEMAG AG

Inventor： KOCH HANS ,  OPPERMANN WILLI ,  PFEFFER HEINZ

IPC: B23K15/00 ,  H01J37/02 ,  H01J37/147 ,  H01J37/304

CPC classification number: H01J37/1472 ,  B23K15/006 ,  H01J37/02 ,  H01J37/304

Abstract: This invention relates in general to a method and apparatus for welding tubes from a metal sheet which is formed into a tubular configuration with a longitudinally extending slot or welding gap, and which includes sensor means adjacent the slot for accurately positioning a welding device. The welding device comprises an electron beam welder having means associated therewith for shifting the beam or the holder for the beam welder in accordance with the position of the longitudinal slot of the formed tube prior to welding. The position of the beam may be regulated by deflecting it electrostatically or electromagnetically and the feeler or sensor which is associated with the formed slot of the tube is connected either electrically or mechanically for effecting the shifting of the beam. The sensor may comprise a three-pole magnet having windings between adjacent poles and which is oriented over the gap of the tube to be welded and which is connected so that the variations of voltage in the windings caused by the shifting of the gap of the tube which is to be centered in respect to the welding apparatus will provide the necessary control pulse for the shifting of the electron beam for centering it during the welding. The same control may be effected by a mechanical shifting device, by an air deflecting device, or by a mirror operated arrangement.

Abstract translation: 本发明一般涉及一种用于从金属板焊接管的方法和装置，该金属板形成为具有纵向延伸槽或焊接间隙的管状结构，并且其包括邻近槽的传感器装置以精确地定位焊接装置。 焊接装置包括电子束焊机，其具有与之相关联的装置，用于根据成形管的纵向槽在焊接之前的位置移动用于梁焊机的梁或支架。 梁的位置可以通过静电或电磁偏转来调节，并且与管的形成的槽相关联的探测器或传感器以电或机械方式连接以实现梁的移动。 传感器可以包括具有在相邻极之间的绕组的三极磁体，其被定向在待焊接的管的间隙上，并且被连接，使得由于管的间隙的移动引起的绕组中的电压变化 其将相对于焊接设备居中，将为焊接过程中的电子束移位提供必要的控制脉冲，以使其居中。 相同的控制可以通过机械移动装置，空气偏转装置或通过镜子操作的装置来实现。