INSTALLATION FOR WELDING OF ANNULAR JOINTS OF ENVELOPES Russian patent published in 2009 - IPC B23K31/02 B23K37/53 B23K101/12 

FIELD: machine building.

SUBSTANCE: invention is related to the field of welding engineering, particularly to devices for fusion welding of locking annular joints of envelopes with usage of expanding rings, and can be used in rocket-space, aviation, chemical and other industries. Installation for welding of annular joints of envelopes includes mounted on stand (1) of rotator front (2) and back posts (5) with faceplates (3, 6), welding head (11), expanding ring, consisting of moveable segments (9) with release mechanisms. On stand of rotator it is installed with ability of movement by axis of stand ring (7) with equispaced by its perimetre electromagnets (8), which can be radially moved. The number of electromagnets (8) is equal to number of segments (9) of expanding ring, which contain structural components (10) from ferromagnetic material.

EFFECT: invention provides safe working conditions at operation with expanding rings inside envelopes and increase quality of welding.

1 dwg