SU844245A2

SU844245A2 - Apparatus for magnetic abrasive working of sheet materials

Info

Publication number: SU844245A2
Application number: SU782690333A
Authority: SU
Inventors: Евгений Аркадиевич Матросов; Юрий Сергеевич Кочура; Александр Александрович Мизери
Original assignee: Московский Ордена Трудового Красногознамени Текстильный Институт
Priority date: 1978-11-30
Filing date: 1978-11-30
Publication date: 1981-07-07

Description

1one

Изобретение относитс к станкост роению , в частности к станкам дл чистовой обработки листовых заготово ферромагнитным порошком в магнитном поле.The invention relates to machine tooling, in particular, to machines for finishing sheet blanks by ferromagnetic powder in a magnetic field.

По основному авт.св. 539743 известно устройство, вьтолненное в виде электромагнитной системы, сердечники которой с полюсными наконечниками расположены по обе стороны обрабатываемой заготовки. Сердечники выполнены в виде цилиндрических элементов , установленных с возможностью вращени на параллельных ос х и кинематически св занных между собой, на каждом из которых смонтирован ПО.ПЮСНЫЙ наконечник в виде валка и две расположенные по обе стороны от него катушки возбуждени , включенные таким образом, что полюсные наконечники имеют разноименную пол рность, на поверхности полюсных наконечников размещен ферроабразивный порошок.According to the main auth. 539743 a device is known that is made in the form of an electromagnetic system, the cores of which with pole pieces are located on both sides of the workpiece. The cores are made in the form of cylindrical elements mounted for rotation on parallel axes and kinematically connected to each other, on each of which a software is mounted. A roll tip and two excitation coils located on both sides of it, connected in such a way that pole pieces have opposite polarity, a ferroabrasive powder is placed on the surface of pole pieces.

Недостатком известного устройства вл етс то, что при раздвижении цилиндрических сердечников с валкс1ми в корпусах неизбежно по вл ютс дополнительные воздушные зазоры, уменьшающие величину магн тной индукцииA disadvantage of the known device is that when expanding the cylindrical cores with valxys in the cases, additional air gaps inevitably appear, reducing the magnitude of the magnetic induction.

в зазоре между валками, а следовательно , и производительность.in the gap between the rolls, and hence the performance.

Цель изобретени - повышение производительности за счет уменьшени магнитных потерь при обрае5отке деталей разной толщины.The purpose of the invention is to increase productivity by reducing magnetic losses when machining parts of different thickness.

Это достигаетс тем, что в устройстве с двух сторон от полюсных This is achieved by the fact that in the device from two sides of the pole

0 наконечников введены пары колодок . и клиньев, выполненных из магнитом гкого материала, колодки закреплены на концах цилиндрических сердечников , и кажда из них имеет по две0 tips entered a pair of pads. and wedges made of magnet of a flexible material, pads attached to the ends of the cylindrical cores, and each of them has two

5 контактные- поверхности, образующие между собой угол, вершина которого расположена на оси симметрии колодки , а контактные поверхности клиньев , упруго св занных с корпусом,5 contact surfaces - forming an angle between them, the top of which is located on the axis of symmetry of the pads, and the contact surfaces of wedges elastically connected with the body

0 соответствуют по форме контактным поверхност м колодок, при этс колодки и клинь обращены вершинами углов друг к другу, устройство снабжено механизмом, обеспечивающим возможность синхронного возвратно-поступательного перемещени вер,;сних колодок вместе с верхним сердечником.0 correspond in shape to the contact surfaces of the pads, with the pads and the wedge facing the vertices of the corners towards each other, the device is equipped with a mechanism allowing the synchronous reciprocating movement of the vertices, the pads together with the upper core.

На фиг. 1 изображено устройство, общий вид; на фиг. 2 г то же, видFIG. 1 shows the device, a general view; in fig. 2 g the same kind

Claims

0 sboku. The device contains two parallelly arranged cylindrical cores 1 and 2 with pole tips 3 and 4 mounted in the form of rolls. On either side of the pole pieces 3 and 4, pads 5, b, 7 and 8 are fixed on the cores, each of which has two contact surfaces, forming an angle between them, the top of which is located on the axis of symmetry of the block. Cores 1 and 2 are installed in the sub-. Spike 9, 10, 11 and 12, mounted in pads 5-8. The wedges 13, 14, 15 and 16, like the pads, have similar contact pads, while the wedges are placed in pairs, facing the vertices of the corners to each other and installed in housings 17 and 18, with which the wedges 13–16 are connected by means of springs 19. Four ignition coils 20, 21, 22, and 23 are placed axially to cylindrical cores 1 and 2 and are installed one on each block 5-8. The device comprises a mechanism 24 of synchronous movement of the upper shoes 5 and 7 together with the upper core 1 when the handle is rotated through the worm gears, both of which are screwed on the same shaft, and two screw pairs. Ferromagnetic powder 25 is placed on pole pieces 3 and 4, and workpiece 26 is placed in the gap between pole pieces. During operation, cylindrical cores 1 and 2 and pole tips 3 and 4 are rotated in opposite directions from the electric motor by using gearbox (not shown). Excitation coils. 20-23 are included in such a way that the pole terminals on the terminators 3 and 4 have opposite polarity. Ferromagnetic powder 25 is attached to the surface of the rolls and when the latter rotates, it processes the part 26, which is moved progressively in the air gap between the rolls 3 and 4. For processing parts of different thickness, pads 5 and 7, and hence the core 1, with the pole tip 3 with the synchronous movement mechanism 24 moves along the housings 17 and 18. In this case, the air gap between the pole pieces 3 and 4 is changed, and the wedge 13-16 under the action of the springs 19 converges if the pads 5 and 6, 7 and 8 depart from each other , and consumption, if the count subcontroller 5 and 6, 7 and 8 are shifted. Thus, with any air gap between the pole tips 3 and 4, wedges are continuously in contact with the pads on the contact surfaces, and therefore the magnetic flux between the cylindrical cores is closed through the pads and the wedge, which significantly reduces its loss and, consequently, increases productivity processing. The invention The device for the magnetic-abrasive processing of sheet materials according to ed. St. No.539743, characterized in that, in order to increase productivity by reducing magnetic losses when processing parts of different thickness, on both sides of the pole pieces, pairs of shoes and wedges made of a soft material magnet are inserted in the device at the ends of the cylindrical cores , and each of them has two contact surfaces, forming an angle between them, the top of which is located on the pads symmetry axis, and the contact surfaces of wedges, elastically connected with the body, correspond to poverhnost55m shaped contact pad, wherein the pad and the wedges facing ug.pov vertices to each other, the device is provided with a mechanism which ensures the possibility of simultaneous reciprocating movement together with the upper pad top core.

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