DEVICE FOR WELDING OF PIPE IN FIXED POSITION Russian patent published in 2019 - IPC B23K37/02 B23K9/28 

FIELD: welding production.

SUBSTANCE: invention relates to the field of welding production and can be used for welding pipes in stationary or in field conditions. Device contains a support-connecting element, made in the form of rigid links, pivotally interconnected with the possibility of covering the pipe around the circumference and moving along it, located on the support-connecting element drive mechanism for moving the specified element around the pipe, and a welding mechanism, supporting rollers are mounted on each of the mentioned links for supporting the outer surface of the pipe, and the hinge link is made with the ability to ensure the rotation of two adjacent links only around the axis of the hinge connection, parallel to the axis of the pipe. Device is also equipped with a tensioning mechanism, and the distance between the extreme outer edges of the supporting surfaces of the coaxial rollers is at least 50 mm.

EFFECT: use of the invention allows to reduce the complexity of the work and improve the quality of welding joints while reducing the welding time.

4 cl, 4 dwg