SU859132A1

SU859132A1 - Apparatus for securing grinding wheel

Info

Publication number: SU859132A1
Application number: SU792819866A
Authority: SU
Inventors: Владимир Георгиевич Васильев; Александр Иванович Бессуднов; Александр Васильевич Зудин; Юрий Васильевич Ширяев
Priority date: 1979-09-21
Filing date: 1979-09-21
Publication date: 1981-08-30

Description

Изобретение относится к станкостроению и может быть использовано на станках для испытания шлифовальных кругов на прочность вращением. Известно устройство для крепления шлифовального круга на оправке с помощью закрепленной на ее конце цанговой втулки [1] .The invention relates to machine tool and can be used on machines for testing grinding wheels for strength by rotation. A device for mounting the grinding wheel on a mandrel using a collet sleeve fixed at its end [1].

Одцако такое устройство вынуждает .« при установке круга другой высоты заменять цанговую втулку.Odzako such a device forces. "When installing a circle of a different height, replace the collet sleeve.

Цель изобретения - расширение технологических возможностей.The purpose of the invention is the expansion of technological capabilities.

Указанная цель достигается тем, что зажимное приспособление выполне- 15 но в виде установленных на конце оправки фиксаторов и подпружиненного относительно круга съемного диска с двумя прорезями, предназначенными для взаимодействия с выполненными на 20 конце оправки двумя диаметрально противоположными боковыми упорами, расстояние между которыми меньше посадочного отверстия круга, фиксаторы выполнены на наружной стороне диска в виде по меньшей мере одной пары диаметрально противоположных штифтов, размещенных от центра диска на равном ¹расстоянии и имеющих высоту не менее высоты упомянутых упоров. Кроме того, фиксаторы могут быть выполнены в виде размещенных в прорезях диска диаметрально противоположных и равноудаленных от его центра выступов предназначенных для взаимодействия с выполненными в боковых упорах идентичными глухими пазами.This goal is achieved by the fact that the clamping device is made in the form of latches installed on the end of the mandrel and spring-loaded relative to the circle of the removable disk with two slots designed to interact with two diametrically opposite side stops, the distance between which is less than the landing hole circle latches formed on the outer side of the disk in the form of at least one pair of diametrically opposite pins placed from the center of the disc ¹ at equal Distance and with a height of not less than the height of the abutment. In addition, the latches can be made in the form of diametrically opposite protrusions located in the slots of the disk and equidistant from its center, designed to interact with identical blind grooves made in the lateral stops.

На фиг.1 показан первый вариант устройства, вид спереди; на фиг.2 то же, вид сверху; на фиг.3 - второй вариант устройства, вид спереди; на фиг.4 - то же, вид сверху.Figure 1 shows a first embodiment of the device, a front view; figure 2 is the same, a top view; figure 3 is a second variant of the device, front view; figure 4 is the same, top view.

В устройстве по первому варианту конец 1 оправки с наружной стороны круга 2 имеет два диаметрально противоположных одинаковых боковых упора 3, являющихся концами запресованного в конец 1 оправки штифта, длина которого меньше посадочного отверстия круга 2. На конце 1 оправки сидит съемный диск 4, в котором выполнены две диаметрально противоположные одинаковые прорези 5. Между кругом 2 и диском 4 установлена пружина 6 сжатия. На наружной стороне диска 4 установлены четыре штифта 7.In the device according to the first embodiment, the end 1 of the mandrel on the outer side of the circle 2 has two diametrically opposite identical lateral stops 3, which are the ends of the pin pressed into the end 1 of the mandrel, the length of which is less than the bore of the circle 2. At the end 1 of the mandrel sits a removable disk 4, in which two diametrically opposite identical slots 5 are made. A compression spring 6 is installed between the circle 2 and the disk 4. On the outside of the disk 4 there are four pins 7.

В устройстве по второму варианту конец 1 оправки с наружной стороны круга 2 имеет два диаметрально про859132 тивоположных идентичных боковых упораЗ, выполненных в частности, за одно целое с оправкой. Со стороны круга, 2 в упорах 3 выполнены два иден• Тичнь-'х глухих паза 8. Расстояние между концами упоров 3 меньше посадоч, НогО отверстия круга 2. На Конце 1 оправки сидит съемный диск 4, в котором выполнены две диаметрально противоположные одинаковые прорези 5 с 'выступами 9. Между кругом 2 и диском 4 установлена пружина б.In the device according to the second embodiment, the end 1 of the mandrel on the outside of the circle 2 has two diametrically opposite identical lateral stops, made in particular in one piece with the mandrel. On the side of the circle, 2 in stops 3 there are two identi ﬁ cations: • An empty blind groove 8. The distance between the ends of the stops 3 is less than the seats, but the hole of the circle 2. At the end 1 of the mandrel sits a removable disk 4, in which two diametrically opposite identical slots are made 5 with the projections 9. A spring b is installed between the circle 2 and the disk 4.

, Устройство по первому варианту работает следующим образом., The device according to the first embodiment works as follows.

После надевания круга 2 на оправг ку устанавливают пружину би диск 4. При нажатии на диск 4 пружина 6 сжимается, а прорези 5 проходят мимо упоров 3. Диск 4 опускают до тех пос, пока штифты 7 не окажутся ниже упоров 3, после чего диск 4 поворачивают на 90^е и отпускают. При этом упоры 3 размещаются между штифтами 7, что соответствует окончанию крепления круга.After putting on the circle 2, the bi-disk 4 spring is installed on the mandrel. When the disk 4 is pressed, the spring 6 is compressed, and the slots 5 pass by the stops 3. The disk 4 is lowered until the pins 7 are below the stops 3, after which the disk 4 rotated 90 ^th and released. In this case, the stops 3 are placed between the pins 7, which corresponds to the end of the fastening of the circle.

В устройстве по второму варианту при нажатии на диск 4 пружина б сжимается, а прорези 5 проходят мимо упоров 3. Диск 4 опускают ниже верхних стенок пазов 8 и поворачивают по направлению стрелки 10, противоположному направлению вращения оправки с кругом 2. При этом выступы 9 входят До упора d пазы 8, что соответствует окончанию крепления круга 2. При вращении силы инерции не дают выступам 9 выйти из зацепления с оправкой.In the device according to the second embodiment, when the disk 4 is pressed, the spring b is compressed, and the slots 5 pass by the stops 3. The disk 4 is lowered below the upper walls of the grooves 8 and rotated in the direction of the arrow 10, opposite the direction of rotation of the mandrel with the circle 2. In this case, the protrusions 9 enter To the stop d, the grooves 8, which corresponds to the end of the fastening of the circle 2. When rotating, the inertia forces do not allow the protrusions 9 to disengage from the mandrel.

Раскрепление круга 2 в обоих вариантах осуществляется в Обратной последовательности .The release of circle 2 in both cases is carried out in the reverse order.

Таким образом, предлагаемое устройство позволяет закреплять на оправке круги разной высоты, в том чи еле малого диаметра, в пределах,допустимых пружиной жает коэффициент кругов.Thus, the proposed device allows you to fix on the mandrel circles of different heights, including barely small diameter, within the limits allowed by the spring, the coefficient of circles.

, и при этом не снйзапаса прочности, and at the same time there is no safety margin

Claims

The invention relates to a stand machine tool and can be used on a CTaHKcix to test grinding wheels for durability by rotation. A device for fastening an encryption wheel on a mandrel is known, with the aid of a collet sleeve tlj Od1} fixed at its end, such a device makes it necessary to replace the collet sleeve when installing a circle of a different height. The purpose of the invention is the expansion of technological capabilities. This goal is achieved in that the clamping device is made in the form of retaining clips installed at the end of the mandrel and a removable disk spring-loaded relative to the circle with two slits designed to interact with two diametrically opposed lateral stops at the end of the mandrel, the distance between which is less than the seating hole of the circle clamps are made on the outer side of the disk in the form of at least one pair of diametrically opposite pins located at the same distance from the center of the disk Britain and imekichih height of not less than the height of said abutments. In addition, the latches can be made in the form of dismetrically opposed and equidistant from its center, the protrusions arranged to interact with the identical deeper grooves made in the side stops. Figure 1 shows the first variant of the device, front view; 2, the same top view; figure 3 - the second variant of the device, front view; figure 4 is the same, top view. In the device according to the first embodiment, the end 1 of the mandrel on the outer side of the circle 2 has two diametrically opposite identical side stops 3, which are the ends of a pin pressed into the end 1 of the mandrel, the length of which is less than the visiting hole of the circle 2. At the end of the mandrel there is a removable disk 4, which made two diametrically opposite identical slots 5. Between the circle 2 and the disk 4 is installed spring 6 compression. On the outer side of the disk 4, four pins 7 are installed. In the device according to the second embodiment, the end 1 of the mandrel on the outer side of the circle 2 has two diametrically opposed identical lateral 3 / made in particular / For one piece with the mandrel. From the side of the circle 2 in the stops 3 vg: two deaf-8 ideals are made. 8. The distance between the ends of the stops 3 are smaller & 1e of the landing holes of the circle 2. At the End 1 there is a removable disk 4 in which two diametrically opposed . Similar cuts 5c BbicTynaMH 9. A spring 6 is installed between the circle 2 and the disk 4. The device according to the first embodiment is pa6oTaet as follows. After putting the wheel 2 on the mandrel, install the spring 6 and the disk 4. When the disk 4 is pressed onto the disk 4, the spring 6 is compressed, and the slots 5 pass by the stops 3. The disk 4 is lowered until those pins 7 are not below the bottom 3, then the disk 4 turn on iSrO and let go. With this, the stops 3 are placed between the pins 7, which corresponds to the end of the fastening of the circle. In the device according to the second variant, when the disk 4 is pressed, the spring 6 is compressed, and the slots 5 pass by the stops 3. The disk 4 is lowered below the upper walls of the grooves 8 and turned in the direction of the arrow 10 opposite to the direction of rotation of the mandrel with jipyrOM 2. The protrusions 9 enters Up to the stop into the grooves 8, which corresponds to the finishing of the fastening of the circle 2. When rotating, the inertia forces prevent the protrusions 9 from coming out of the engagement with the mandrel. The fastening of the circle 2 in both variants is carried out in the reverse direction. consequently. Thus, the proposed device allows mounting on the mandrel circles of different heights, including small diameters, within the limits allowed by the spring, and at the same time does not reduce the factor of safety of the circles. Claim 1. Device for mounting the grinding wheel on the mandrel using a clamping device installed at its end, from which, in order to expand technological capabilities, the clamping device is made in the form of fixing clamps and spring-loaded with respect to the circle of the removable disk with two notches designed to interact with two diametrically opposite side stops at the end of the mandrel, the distance between which is less than n sedimentary circle openings.

2. The device according to Claim 1, from which there are clamps made on the outer side of the disk in the form of at least a pair of diametrically opposite pins located at the same distance from the center of the disk and having a height of at least heights of the mentioned stops.

3. The device according to Claim 1, about, t and t and so that the latches are made in the form of diametrically opposite diametrically opposed and equidistant from its center protrusions designed to interact with identical in the side stops deaf grooves. ;. Sources of information taken into account during the examination 1. Japan patent No. 49-6431, cl. 74 By 201, publ. 1974.

9 × 1 f

(Rig I