SU1303331A1

SU1303331A1 - Friction welding apparatus

Info

Publication number: SU1303331A1
Application number: SU843754123K
Authority: SU
Inventors: Михаил Михайлович Первушин; Сергей Михайлович Первушин
Original assignee: М.М.Первушин и С.М.Первушин
Priority date: 1984-06-14
Filing date: 1984-06-14
Publication date: 1987-04-15
Also published as: SU1303330A1

Abstract

Изобретение относитс к сварке, а именно к устройствам дл сварки трением. Целью изобретени вл етс упрощение и повышение надежности конструкции . Дл этого электромагнитный привод осевого давлени снабжают шунтами , измен ющими магнитный поток в рабочем зазоре привода, которые устанавливают на боковой поверхности одного из элементов привода. Шунты могут быть установлены на магнитопро- воде шарнирно и с возможностью поворота в направлении кор . Они могут быть установлены на коре шарнирно с возможностью перемещени в выполненных в нем пазах и срабатывать за счет центробежных сил при вращении кор . Шунты могут быть установлены на магнитопроводе с возможностью перемещени в выполненных на его боковой поверхности пазах. Кроме того, шунты могут быть вьтолнены из ферромагнитного материала в виде посто нных магнитов или электромагнитов. Благодар этому возможно исключить фрикционный тормоз, обеспечить возможность управлени моментом начала торможени и величиной тормозного момента . 5 з.п. ф-лы, 5 ил. (Л со о со 00 соThe invention relates to welding, in particular to devices for friction welding. The aim of the invention is to simplify and increase the reliability of the design. For this purpose, an electromagnetic actuator of axial pressure is supplied with shunts that change the magnetic flux in the working gap of the actuator, which are mounted on the side surface of one of the actuator elements. The shunts can be mounted on a magnetic pipe pivotally and can be rotated in the direction of the core. They can be pivotally mounted on the bark with the possibility of movement in the grooves made therein and act by centrifugal forces during the rotation of the core. The shunts can be mounted on the magnetic core with the possibility of movement in slots made on its side surface. In addition, shunts can be made of ferromagnetic material in the form of permanent magnets or electromagnets. Due to this, it is possible to eliminate the friction brake, to provide the ability to control the start of braking and the value of the braking torque. 5 hp f-ly, 5 ill. (L with about with 00 with

Description

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изобретение относитс к сварке, а именно к устройствам дл сварки трением .This invention relates to welding, in particular to devices for friction welding.

Целью изобретени вл етс упрощение и повышение надежности конструкции .The aim of the invention is to simplify and increase the reliability of the design.

На фиг.1 изображено устройство дл сварки трением в случае выполнени полостей, с которыми взаимодействуют шунты, в магнитопроводе; на фиг.2 - разрез А-А н-а фиг. 1 ; на фиг.З устройство с шунтом, шарнирно закрепленным на магнитопроводе; на фаг. - то же, на коре; на фиг.З - вид Б на фиг.5.Fig. 1 shows a device for friction welding in the case of cavities with which shunts interact in the magnetic core; figure 2 - section aa and n-a fig. one ; on fig.Z device with a shunt, hinged on the magnetic core; on phage. - the same, on the bark; on fig.Z - view B in figure 5.

Устройство содержит привод осевого сварочного давлени , включающий корь 1, установленный на шпинделе 2, магнитопровод 3,, установленный на задней бабке 4, и обмотку 5, уложенную в магнитопроводе электромагнита. Кроме того, устройство имеет зажимы 6 дл вращающейс и невращающейс деThe device comprises an axial welding pressure actuator, including a bark 1, mounted on spindle 2, a magnetic core 3, mounted on a tailstock 4, and a winding 5 laid in the magnetic circuit of an electromagnet. In addition, the device has clamps 6 for rotating and non-rotating de

талей, привод 7 вращени шпиндел . Шунты 8 могут быть выполнены ферромагнитными и закреплены на магнитопроводе с возможностью взаимодействи с полост ми 9, выполненными в магнитопроводе (фиг.1); шунты 8 могут быть сить надежность за счет исключени .hoists, drive spindle rotation 7. The shunts 8 can be made ferromagnetic and fixed on the magnetic core with the possibility of interaction with cavities 9 formed in the magnetic core (Fig. 1); shunts 8 can be reduced reliability by exclusion.

вьшолнены в виде посто нных или электромагнитов , шарнирно закрепленных на магнитопроводе с возможностью поворота в направлении кор (фиг.З); шунты 8 могут быть подпрзокинены и шарнирно установлены на коре 1 с возможностью взаимодействи с выполненными на его боковой поверхности пазами (фиг.4).are made in the form of permanent or electromagnets, hinged on the magnetic core with the possibility of rotation in the direction of the core (Fig. 3); The shunts 8 can be protruded and pivotally mounted on the bark 1 with the ability to interact with the grooves made on its side surface (Fig. 4).

Устройство работает следующим образом .The device works as follows.

После установки свариваемых деталей в зажимы 6 включаетс привод 7 вращени шпиндел и затем привод осевого сварочного давлени . Происходит нагрев стыка свариваемых деталей. После получени от управл ющего устройства команды на проковку отключаетс привод вращени шпиндел и срабатывают шунты 8.After installation of the parts to be welded into the clamps 6, the spindle rotation drive 7 is turned on and then the axial welding pressure drive. The heating of the joint of the welded parts occurs. After receiving the command for the forging from the control device, the spindle rotation drive is disconnected and the shunts 8 are triggered.

В устройстве по фиг.3 шунты ввод тс в полости 9. Происходит перераспределение магнитного потока в рабочем зазоре магнита так, что в местах введени ферромагнитного шуНта магнитный поток возрастает, а в местах , где полость магнитопровода остаетс свободной, уменьшаетс . При вращении кор в магнитном поле, в кото35In the device of FIG. 3, shunts are introduced in the cavity 9. The magnetic flux is redistributed in the working gap of the magnet so that at the points of introduction of the ferromagnetic shuNta the magnetic flux increases, and in places where the magnetic core remains free, it decreases. When rotating the core in a magnetic field, in which

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фрикционного тормоза, обеспечивает возможность управлени моментом нач ла торможени и величиной тормозног момента.friction brake, provides the ability to control the braking start torque and braking torque value.

Claims

1. A friction welding device containing clamping devices, with the spindle turning water and brake elements, installed with the possibility of interaction with an electromagnetic axial pressure actuator, including measles and a magnetic core, characterized in that, in order to simplify and increase the reliability of the design The brake elements are made in the form of shunts mounted on the side surface of one of the elements of the electromagnetic drive.

2. The device according to claim 1, characterized in that the shunts are mounted on the lateral surface of the magnet joint pivotally with the possibility of closing the working gap of the electromagnetic drive.

3. Device POP.1, characterized in that on the side

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Rum induction varies from point to point, eddy currents are induced in the cortex, the interaction of which magnetic field with the magnetic field generated by the axial welding pressure causes braking of the spindle.

In the device of FIG. 3, the shunts shunt a part of the magnetic flux passing through the air gap. This causes a disturbance of the magnetic field. The rest of the device works as described above.

In the device of FIG. 4, the shunts 8, when the spindle reaches the rated speed at which heating is conducted, eject from the core cavities under the action of centrifugal forces, overcoming the resistance of the spring. The axial welding pressure drive is activated. After the joint is heated up, the rotational drive of the spinlock is disconnected and its speed drops due to the resistance to rotation in the joint being welded. The shunt 8-under the action of the spring enters the cavity of the core, changing the magnetic flux in the gap. .

The proposed device, which has a simple structure, makes it possible to increase reliability by eliminating it.

friction brake provides the ability to control the start of braking and braking torque.

Invention Formula

1. A device for friction welding, containing clamping devices, a spindle rotation drive and brake elements mounted to interact with an electromagnetic axial pressure actuator, including measles and a magnetic core with a winding, characterized in that, in order to simplify and increase the reliability of the design, the braking elements made in the form of shunts installed on the side surface of one of the elements of the electromagnetic actuator.

2. The device according to claim 1, characterized in that the shunts are mounted on the lateral surface of the magnetic core hingedly with the possibility of closing the working gap of the electromagnetic drive.

3. Device POP.1, characterized in that on the side

3130333

the surfaces of the core are grooves, and the shunts are spring-loaded relative to the core and are hinged on it with the possibility of movement in the slots.

4. The device according to claim 1, characterized in that the side surface of the magnetic circuit is made

grooves, and shunts are magnetically made ferromagnetic.

wire with the ability to move them.

5. A device according to claim 2, characterized in that the shunts are made in the form of permanent magnets or electromagnets.

6. The device according to p. 3 and 4, characterized in that the shunts

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B.B.

Editor I.Rybchenko

Compiled by I.Felitsin Tehred L.Oleinik

Order 1252/15

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

Corrector S.Cherni