SU973332A1

SU973332A1 - Grinding tool

Info

Publication number: SU973332A1
Application number: SU802909753A
Authority: SU
Inventors: Лев Симхович Маркман; Яков Борисович Фазылов; Камал Ширгалиевич Ширгалиев; Борис Семенович Беликов; Анатолий Кельманович Херсонский; Александр Андреевич Панцирев
Priority date: 1980-04-11
Filing date: 1980-04-11
Publication date: 1982-11-15

Description

Изобретение относитс к алмазоабразивному инструменту, в частности к шлифовальным инструментам из синтетических сверхтвердых материалов, предназначенных дл обработки криволинейных поверхностей, преимущественно ручным способом.The invention relates to a diamond abrasive tool, in particular to grinding tools made of synthetic superhard materials, designed to process curved surfaces, mainly by hand.

Известен шлифовальный инструмент, содержащий абразивный круг с опорной поверхностью и упругие элементы, выполненные в виде радиально расположенных пластинчатых пружин,установленных с возможностью взаимодействи с корпусом и кругом 1.A grinding tool is known that contains an abrasive wheel with a supporting surface and elastic elements made in the form of radially arranged lamellar springs that are installed with the possibility of interaction with the body and the circle 1.

недостатком известных шлифовальных инструментов вл етс то, что размещение упругого элемента между шлифовальным рабочим элементом и корпусом инструмента снижает жесткофь инструмента, а значит и точность обработки. Отсутствие конструктивного узла, предохран ющего инструмент от разрушени при нагрузках, превышающих допустимые, сокращает срок их службы.A disadvantage of the known grinding tools is that the placement of the elastic element between the grinding working element and the tool body reduces the tool hardness, and hence the machining accuracy. The absence of a structural unit that protects the tool from damage when loads exceed the allowable ones reduces their service life.

Цель изобретени - увеличение диапазона углов наклона шлифовального диска и срока службы инструмента.The purpose of the invention is to increase the range of angles of inclination of the grinding disc and the tool life.

Поставленна цель достигаетс тем что инструмент снабжен установленнымThe goal is achieved by the fact that the tool is equipped with

на абразивном круге сепаратором с шарами, расположенными между пластинчатыми пружинами, выполненными V-образными и закрепленными на сепараторе , при этом в пластинчатых пружинах выполнены отверсти соосные шарам, опорна поверхность круга выполнена в виде вогнутой сферы.on the abrasive wheel with a separator with balls located between the leaf springs, made V-shaped and fixed on the separator, while the plate springs have holes coaxial to the balls, the supporting surface of the circle is made in the form of a concave sphere.

На фиг. 1 изображен шлифовальный FIG. 1 depicts grinding

10 инструмент, разрез; на фиг. 2 - вариант 1 креплени V-образных пружин; на фиг. 3 - вариант 2 креплени ; на фиг. 4 - обойма (упругий элемент ), вид сверху.10 tool incision; in fig. 2 - version 1 of fastening of V-shaped springs; in fig. 3 - option 2 mount; in fig. 4 - holder (elastic element), top view.

1515

Широкий диапазон углов наклона шлифовального диска составл ющий 1 - 25°, и большой срок службы предлагаемого инструмента, обусловленные подвижностью шлифовального ал20 мазоносного диска и защищенностью инструмента от разрушени при нагрузках , превышаквдих максимально допустимые, достигаетс тем, что в шлифовальном инструменте, содержащем The wide range of angles of inclination of the grinding disc is 1–25 °, and the long service life of the proposed tool, due to the mobility of the grinding al20 ozone-bearing disc and the protection of the instrument from destruction under loads that exceed the maximum permissible, is achieved by the fact that in a grinding tool containing

5 корпус 1 и шлифовальный диск 2, взаимодействующие через упругий элемент 3, включающий радиально расположенные пластинчатые пружины 4, шлифовальный диск снабжен выпуклой 5 housing 1 and a grinding disk 2, interacting through an elastic element 3, including radially arranged lamellar springs 4, the grinding disk is provided with a convex

Claims

30 by a support surface made on a sphere with a radius R and rests on a spherical concave surface with a radius (2 made in the tool body 1. The radius of the concave surface of the housing Rj is larger than the radius R of the bearing surface of the grinding disc and is 1.1 - 1.25 R The leaf springs 4 of the elastic element 3 are fixed on the separator .5, equipped with rolling balls b and fixedly connected to the grinding disc 2, are V-shaped and the ends of the sleeve 1 are pressed to the flange ring 7 of the body b sep The arator 5 has holes 8 for them. The flange ring 7 is equipped with anti-seize rollers 9, sizeHHivM on its external surface and is axially displaceable, which can adjust the adhesion force of the grinding disc 2 and the housing 1, through an elastic element 3 including radially plate springs 4, the tool body 1 is at the same time the faceplate of the machine, has mounting holes 10 and a seat 11. After fixing the body 1, the seating 11 and through the mounting holes 10 on the drive shaft of the machine to the grinding tool can be brought onboard suction which can serve as a protective fence grinding diamond-bearing disk. The rotation of the grinding disc 2 is transmitted from the housing 1 connected to the shaft by virtue of the fact that the disc 2 is supported by a spherical surface onto the rolled surface of the housing 1, and the V-shaped springs 4 of the separator 5 of the elastic element 3 abut against the inner surface of the flange ring 7, also fixed to the housing 1. When machining products with an uneven amount of material and asymmetrical load from this, the grinding disk 2 has the ability to change the angle of inclination by moving the support along the spherical surface of the core 1 whisker and partially reducing the pressing force on the grinding disc fixed ri aid of springs 4 separator 5 k flange ring 7 on one side of the disk and increase the pressing force of these springs on the other side of the disc. Due to this, the force of interaction between the grinding disk and the workpiece is automatically adjusted, which allows to increase the service life of the disk. Under critical loads, when the angle of inclination of the grinding disk 2 exceeds the allowable values, part of the springs 4 of the elastic element 3, together with the supporting part of the grinding disk 2, comes out of engagement with the flange ring 7 of the housing 1, and at the opposite parts of the elastic element of the spring element 4 to such an extent that the rolling balls b of separator 5 go out of their holes 8 and abut against the inner surface of the olantic ring 7, where the sliding friction of the springs turns into rolling rolling friction and the grinding wheel stops This is because, in this case, the friction forces, the rolling friction of the balls) are insufficient to overcome the cutting force (part processing). Protective rollers 9 are necessary to protect the surface of the grinding disc from damage during operation. The proposed design allows to increase the range of angles of the abrasive wheel and increase the reliability of the tool. The invention of the Grinding tool containing an abrasive wheel with a supporting surface and elastic elements made in the form of radially arranged leaf springs, installed with the possibility of interaction with the body and the circle, characterized in that it is equipped with a separator mounted on the abrasive wheel with balls arranged between the plate springs, made V-shaped and fixed to the separator, with holes in the plate springs, with axial with balls, with the supporting surface of the circle made in the form of a convex sphere, and the surface of the body arranged to interact with it is made in the form of a concave sphere. Sources of information taken into account in the examination 1. USSR author's certificate №625916, cl. B 24 D 7/00, 1976.