SU1299758A1 - Jig for welding longitudinal weld of shell - Google Patents

Description

The invention relates to welding conductors and is intended for use in installations for seam welding: welding a longitudinal closing seam of the shell, for example, in the manufacture of steel welded drums or other cylindrical hollow articles.

The aim of the invention is to improve the quality by maintaining the parallelism of the edges being welded and the uniformity of their pressure,

 Fig, 1 shows the jig from the die side, general view; Figure 2 is the same, side view.

A jig for welding a longitudinal seam of the shell includes a housing 1, made in the form of a rectangular welded structure having longitudinal guide grooves 2, and a movable plate 3 placed in the grooves 2 of the frame on which the verticals-20 are fixed. The clamping device is intended to clamp the welded edges of the shell to the Z-shaped wiring while preserving their parallelism, dissolution and flapping of the ends of the shell

4. The base of the conductor contains a plate 5, on which two supports 6 are fixed, installed 25 from vibration when moving it on the vertical guide 4, weld welding, moreover, such a device (the ability to move in vertical direction) direction, as well as armored casings of other sizes, 7 and stops 8-10, a longitudinal beam 11, which are diameters, but fixed on supports 6, a longitudinal axis 30 of the diameter of the cylindrical rotation axis 12, fixed on the frame bracket, ba 11 along the axis of its sigf1etrii, two the Conductor is equipped with a pressure device of the support rollers 13, secured by a device made in the form of two “on both sides of the beam f1 with an optional arc-shaped lever mounted 27 The axes 12 lie about their departure, a cylindrical welded bracket in the form of two round bands 14, interconnected by rigidly transverse rods 15, fastened to 11 along its axis of symmetry. The inner diameter of the cylindrical bracket exceeds the nominal diameter of the welded shell.

On the upper transverse-rod 15 concentrated Z-shaped wiring 16.

The die is designed to provide an accurate overlap of the edges of the spinning of the levers of the die parallel to them. Arcuate levers 17 and 18 dies and additional arcuate levers 27 of the clamping device

40 are rigidly connected to each other in pairs on each side by horizontal rods 28. On each of the rods 28, in a horizontal plane, a series of pinch rollers 29 are installed,

45 working surface inside the conductor with the ability to adjust the clamp to the side of each roller 29.

The direction knife 30 is fixed on the front band 14 in its upper

welded shells in the welding zone and under- 50 parts. Roller 31 is designed for

transportation of the welded shell for welding and at the end of welding.

The proposed conductor works as follows.

The next shell preform, intended for welding, is placed on the roller table 31, oriented with the longitudinal edges relative to

holding a given diameter of the shell when crushing, welds in 1x edges and thermal effect of welding heating; it contains right 17 and left 18 arc-shaped levers mounted on axis 12 of rotation. On each of the levers, the cams 19 are rigidly fixed, each having two trunnions, on which caliber gauge 1299758 is mounted on bearings

The rollers 20, forming a round - through hole.

To change the diameter of the through-hole of the spinneret, a floating pneumatic cylinder 21 and a system of levers 22 and 23, hinged at three points, respectively, on the bracket 7 and the stop 8 of the plate 5, are provided on the arcuate levers 17 and 18 of the spinnerets.

and on the pneumatic cylinder 21. At the same time, the levers 22 are attached to the eye of the cylinder body, and the levers 23 to the eye of the rod.

The device for the installation movement of the frame on the frame contains a lead screw 24 and a flywheel 25 for moving in the horizontal direction, a flywheel .26 for moving in the vertical direction,

The clamping device is designed to clamp the welded ends of the shell to the Z-shaped wiring while preserving their parallelism, dissolution and slamming of the ends of the shell

from vibration when moving it during welding, in addition, such a device makes it possible to weld the shells of other sizes differing in diameter, but within the diameter of the cylindrical frame bracket, the Conductor is provided with a clamping device, made in the form of two additional arcuate levers 27 mounted on the axis 12 of rotation of the levers of the spinneret parallel to them. Arcuate levers 17 and 18 dies and additional arcuate levers 27 of the clamping device

rigidly connected to each other in pairs on each side by horizontal rods 28. On each of the rods 28, in the horizontal plane, a series of pinch rollers 29, fixed

working surface inside the conductor with the ability to adjust the clamp to the side of each roller 29.

The direction knife 30 is fixed on the front band 14 in its upper

the knife 30 and is pushed into the end. In this case, the longitudinal joint of the shell passes through the knife 30, and the edges of the shell are inserted into the grooves of the Z-shaped wiring 16, thereby creating an overlap of the weld edges. When the shell reaches the stop, the sensor (not shown) turns on the floating pneumatic power chassis 21, which through the system of levers 22 and 23 closes the arcuate levers 17 and 18 of the spinnerets. In this case, the calibrating rollers 20 of these levers are installed around a circumference equal to the outer diameter of the shell, providing the desired amount of overlap of the edges of the shell in the welding zone and excluding the dissolution of the edges as a result of their heating and crushing during welding. At the same time, the arcuate arms 27, connected by horizontal rods 28 to the levers 17 and 18, draw the pressure levers against the clamping rollers 29 of the edges of the shells to the Z-shaped wiring along their entire length, eliminating the dissolution of edges and chlopaye during the movement of the shell during welding. A welding command is given.

As welding longitudinal seam under the action of drive welding

welding machine rollers (not shown), the shell extends from the stationary conductor along support rollers 13 to the roller table 31.

At the end of the welding and opening of the welding rollers of the welding machine, the command is issued to open the arcuate rills 17 and 18 of the spinneret and the arcuate levers 27 of the presser

o devices. The conductor is ready to repeat the cycle.

Uneven wear of the working surface of welding rollers across the width is compensated for by moving the welding jig in a horizontal plane relative to the welding line using a flywheel 25 and a lead screw 2A, and a decrease in the diameter of the welding electrodes as a result of

0 wear is compensated with the help of the flywheel 26 for vertical movement of the bed.

When switching from one size of shell to another (different in

5 diameters), the jig is adjusted in height by a flywheel 26 and support rollers 13;

0 rollers 29 clamping device.

Editor L.Povkhan

Compiled by V. Klokov Tehred N. Glutsenko

Order 1101/12 Circulation 976 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

FIG 2

Proofreader E.Roshko

Claims (1)

(54X57) CONDUCTOR FOR WELDING A LONGITUDINAL SEAM OF A SURFACE according to ed. No. 1261765, characterized in that, in order to improve the quality by preserving the parallelism of the welded edges and the uniformity of their clamping, the conductor is additionally equipped with a clamping device made in the form of two arched levers of a die, two additional arched levers and two rods mounted on the arched levers of the die, and additional arched levers of the clamping device located parallel to the longitudinal axis of the conductor and about naschennyh beside the pinch rollers, Tew mounted vozmozhnosindividualnogo regulation. <x> co Si Q0>