US 12,440,931 B2
Mobile pipe welding machine
Alexander Vietz, Seelze (DE)
Assigned to VIETZ GMBH, Hannover (DE)
Filed by VIETZ GMBH, Hannover (DE)
Filed on Oct. 7, 2022, as Appl. No. 17/938,731.
Application 17/938,731 is a continuation of application No. PCT/EP2022/076558, filed on Sep. 23, 2022.
Claims priority of application No. 10 2021 128 159.8 (DE), filed on Oct. 28, 2021.
Prior Publication US 2023/0138873 A1, May 4, 2023
Int. Cl. B23K 37/00 (2025.01); B23K 37/053 (2006.01); B23K 37/0533 (2025.01); F16L 1/024 (2006.01); B23K 101/10 (2006.01)
CPC B23K 37/0533 (2013.01) [B23K 37/053 (2013.01); F16L 1/024 (2013.01); B23K 2101/10 (2018.08)] 19 Claims
OG exemplary drawing
 
1. A mobile pipe welding machine, comprising:
a welding unit for welding pipes;
a pipe receiver for guiding a pipe to the welding unit,
wherein the pipe receiver comprises
(i) a distal end facing away from the welding unit, and
(ii) a proximal end facing the welding unit;
at least one linearly movable contact body for lifting the pipe positioned at the distal end of the piper receiver;
at least one contact body drive configured to move the at least one contact body along a linear path from a neutral position, in which the at least one contact body does not lift the pipe, and into a lifting position, in which the at least one contact body lifts the pipe; and
a run-up skid which
is proximally in a longitudinal direction in relation to the longitudinal axis of the pipe receiver behind a distal end of the at least one contact body in the neutral position, and
has a run-up surface that extends transverse to a horizontal plane.