SU704744A1

SU704744A1 - Apparatus for welding longitudinal joints of shells

Info

Publication number: SU704744A1
Application number: SU762391384A
Authority: SU
Inventors: Эмиль Петрович Финкельман; Георгий Владимирович Кайгородов; Олег Владимирович Ильин; Анатолий Александрович Челпанов; Николай Сергеевич Градов
Original assignee: Предприятие П/Я А-7204
Priority date: 1976-08-02
Filing date: 1976-08-02
Publication date: 1979-12-25

Description

(54) УСТРОЙСТВО ДЛЯ СВАРКИ ПРОДОЛЬНЫХ швов ОБЕЧАЕК(54) DEVICE FOR WELDING LONG-TERM SEAMS

Изобретение относитс к сварочному производству, преимущественно к изготовлению сварных конструкций в виде пустотелых удлиненных емкостей .The invention relates to the welding industry, mainly to the manufacture of welded structures in the form of hollow hollow tanks.

Известно устройство дл сварки продольных швов обеааек, содержащее смонтированную на общем основании П-рбразную раму с механизмом дл перемещени сварочной головки, две ,продольные балки с расположенными на них гидроприжимами и подкладную балку с опорными площадками 1.A device for welding longitudinal welds of both ends is known, comprising a U-frame mounted on a common base with a mechanism for moving the welding head, two longitudinal beams with hydraulic clamps located on them and a backing beam with supporting platforms 1.

Недостатком этого устройства вл етс ниэкие качество и производительность сварки.A disadvantage of this device is the poor quality and productivity of welding.

Цель изобретени - повышение качества и производительности свйрки путем сварки обечаек различного диаметра без переналадки устройстваThe purpose of the invention is to improve the quality and performance of a swirk by welding shells of different diameters without retooling the device.

. . Это достигаетс тем, что опорные площадки смонтированы с возможность вертикального перемещени , а подкладна балка выполнена в виде калибрующей сменной оправки из мате-. риала, имеющего коэффициент линейного расширени больший, чем материал обечайки.. . This is achieved by the fact that the supporting platforms are mounted with the possibility of vertical movement, and the lining beam is made in the form of a calibrating replaceable mandrel from a mat. A rial having a linear expansion coefficient greater than the shell material.

На фиг. 1 показано предлагаемое устройство дль сварки продольных швов обечаек; на фиг. 2 дан вид по стрелке А на фиг.1; на фиг. 3 представлена подкладна балка; на фиг. 4 приведен разрез Б-Б на фиг.З.FIG. 1 shows the proposed device for welding longitudinal seams of the shells; in fig. 2 is given a view along arrow A in FIG. in fig. 3 shows the lining beam; in fig. 4 shows the section BB in Fig.Z.

Устройство дл сварки продольных швов состоит из основани 1, по ко .торому перемещаетс загрузочна те0 лежка 2.A device for welding longitudinal seams consists of a base 1, along which the load plate moves 2.

На основание установлены стойки 3 с механизмами подъема-опускани 4, фиксации клином 5 подкладной бал5 ки 6 в призматических упорах 7.Racks 3 are installed on the base with lifting-lowering mechanisms 4, wedge 5 fixing the backing pad 6 in prismatic stops 7.

Стойки по верху замыкаютс двум балками 8 с прижимными гидроцилиндрами 9, осуществл ющими прижим кромок свариваемой обечайки к под0 кладной балке.The struts on the top are closed by two beams 8 with clamping hydraulic cylinders 9, which clamp the edges of the welded shell to the sub-beam.

Загрузка-выгрузка подкладной балки -со свариваемой обечайкой осуществл етс загрузочной тележкой.The loading-unloading of the backing beam, with the welded shell, is carried out by the loading carriage.

Сварочна головка 10 перемещаетс The welding head 10 is moved

Claims

5, along the guides mounted on the top of the beams, receiving movement from the actuator 11. When installed, the liner interacts with the block 12 of the cutters, automatically sets the required range of forces for pressing the edges to be welded. The backing beam has support platforms 13, a groove 14 for forming a seam, a root root, as well as a cavity 15 for supplying a spent gas. To fix the position, the support beam has two inclined planes 16 On the length of the welded beam, it is a calibrating mandrel after welding heat treatment at the same time, the coefficient of linear expansion of the shell material is less than the coefficient of linear expansion of the beam material. Installation for welding longitudinal seams of the shells works as follows. The lining beam 6 with the welded shell is ejected onto the loading carriage 2 and fed to the lifting mechanism 4, which, at the command of the control panel, raises the platform beam to contact with the prismatic stops 7 and then fix the wedge 5 in the vertical plane, while the block 12 of the cutters automatically sets the efforts to clamp the edges to be welded, depending on the diameter and thickness of the shell material. Subsequent clamping of the edges of the shell JK, an underlaying beam, presses hydraulic cylinders 9. After feeding welding gasket 10 into the protective beam 6, receiving a movement from the actuator 11, cooks the edges of the shell. At the end of the welding process, the welding head returns to its original position, and the backing pad with the welding shell is removed from the unit and fed to heat treatment. The use of the proposed device allows improving the quality and productivity of welding. Claims An apparatus for welding longitudinal seams of shells, comprising a U-shaped frame mounted on a common base with a mechanism for moving the welding head, two longitudinal beams with hydraulic jibs positioned on them and a backing beam with supporting planes, characterized in that, in order to have noBbcjeHH quality and productivity of welding by welding shells of different diameters without readjusting the device, the supporting platforms are mounted with the possibility of vertical movement, and the supporting beam is made in the form of cal bruyuschey removable mandrel of a material having a greater coefficient of linear expansion than the material of the sleeve. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 313637, cl. In 23 K 37/04, 1970.