SU1655734A1 - Apparatus for automatic welding of longitudinal joints of shells - Google Patents

Abstract

The invention relates to welding, in particular, to the design of installations for the automatic welding of longitudinal seams of shells, mainly consisting of individual rings, continuously supplied to the welding zone, and can be used in various fields of mechanical engineering in the manufacture of ring-type parts. The chain of the invention is the improvement of the quality of welds by increasing the accuracy of assembly for welding the edges of the shells. The weld rings 13 are loaded into the cassette and the pusher is fed into the guide device 30, in which they are reduced and leveled for welding with the help of rollers installed in the slats 31 along the edges of the cone and wedge profile 19. In the forming device 34 using the same rollers installed on forming the cylinder, the rings 13 get their final shape. The edges are fixed relative to each other in height by the stabilization unit 28 and are welded together. Half of the rollers provided with protrusions located on their outer surface, and the second half of the H-response depressions. Goliki installed in strips 31 and 35 alternately so that the projections of the rollers were in the depressions of the neighboring. 6 з п.ф-л, 7 Il. (Ls

Description

25

40

3D

tob-in

M - 39

 i, /

fcsss

SS3C ҐZ77

FIG.

26

Bb

h s

H h n

H.CH1XM /

FIG. five

72

1B.G7

P

16.11

15

eleven

FIG. 6

Claims (7)

Claim 1. Installation for automatic welding of longitudinal seams of shells, mainly consisting of separate rings, continuously supplied to the welding zone, comprising a housing, a guiding device mounted thereon with roller bearings arranged in several rows along the generatrices of the cone, and a forming device with roller bearings located in several rows along the generatrices of the cylinder, a retainer of the gap between the edges to be welded and a welding unit, characterized in that, in order to improve the quality of welds by increasing the accuracy of assembly The edges of the rings are welded, half of the rollers in the roller bearings are made with protrusions around the circle, the second half with reciprocal depressions, rollers with protrusions and depressions in each row of rollers. the edges are made in the form of an I-profile, the wall of which has a wedge-shaped section, decreasing towards the forming devices VA. 2. The installation according to claim 1, with the fact that the welding unit is made in the form of two opposed welding torches, a filler wire feeder, a tool tray with a concave cylindrical surface to stabilize the position of the welded edges, in which Ί a window has been made for placing one of the welding torches and a channel for feeding filler wire. 3. Installation according to claim 1, with the exception that the guide and forming devices contain five rows of roller bearings arranged uniformly around the circumference. 4. The installation according to claim 1, on the basis of the fact that each row of the roller bearings is made in the form of U-shaped slats installed with the possibility of radial movement, in which the rollers are mounted. 5. The installation according to claim 1, with the exception that it is additionally equipped with a set of interchangeable cartridges for · rings of various sizes and a rotation mechanism. . 6. The installation according to claim 5, the fact that each cartridge is made in 5 is a view of a cylindrical body mounted in a rotation mechanism and a T-shaped locking bar fixed inside the body. 7. Installation according to claim 5, characterized in that the cassette rotation mechanism is made in the form of two half-ring lodgements with ball bearings mounted on the base, two half-clamps pivotally mounted on the lodges and also equipped 15 ball bearings, and the fixator of the angular position of the cartridge mounted on one of the lodgements. FIG. 1 Type G FIG. 6