SU686853A2

SU686853A2 - Device for abrasive processing of parts

Info

Publication number: SU686853A2
Application number: SU762390168A
Authority: SU
Inventors: Сергей Иванович Колесников; Александр Васильевич Гришкевич
Original assignee: Сумский Филиал Харьковского Ордена Ленина Политехнического Института Им. В.И.Ленина
Priority date: 1976-07-09
Filing date: 1976-07-09
Publication date: 1979-09-25

Description

(54) УСТРОЙСТВО ДЛЯ АБРАЗИВНОЙ ОБРАБОТКИ ДЕТАЛЕЙ(54) DEVICE FOR ABRASIVE TREATMENT OF PARTS

1one

Изобретение относитс к машиностроению и может быть использовано дл обработки мелких деталей гранулированной абразивно-полирующей массой .The invention relates to mechanical engineering and can be used to process small parts with a granular abrasive-polishing mass.

По основному авт.св. 656816 известно устройство дл абразивной обработки деталей в емкости, выполненной в виде двух горизонтально расположенных конусообразных полубарабанов , направленных большими основани ми навстречу друг другу, причем между полубарабанами установлен полый элемент, сообщающий рабочей см си дополнительную кинетическую ,энергию 1.According to the main auth. 656816, a device is known for abrasive machining of parts in a container made in the form of two horizontally disposed cone-shaped semi-reels, directed by large bases towards each other, with a hollow element between the semi-reels, which gives the working cm an additional kinetic energy 1.

Цель изобретени - повышение производительности обработки деталей.The purpose of the invention is to improve the performance of machining parts.

Достигаетс она тем, что полый элемент кинематически соединен с полубарабанами и снабжен вибраторами.It is achieved by the fact that the hollow element is kinematically connected with semi-reels and equipped with vibrators.

На чертеже показан составной контейнер описываемого устройства.The drawing shows a composite container of the described device.

Устройство содержит две вращающиес вокруг горизонтальной оси симметричные чаши (полубарабаны) 1, неподвижные кольца 2, уплотн ющие чаши с минимальным зазором, и резиновые вставки 3, жестко прикрепленные к кольцам и полому элементу 4, установленному соосно с полубарабанами . На полом элементе установлен вибратор 5.The device contains two symmetric bowls (semi-drums) 1 rotating around the horizontal axis, fixed rings 2 sealing the bowls with a minimum gap, and rubber inserts 3 rigidly attached to the rings and the hollow element 4 installed coaxially with the semi-reels. A vibrator 5 is mounted on the floor element.

При работе устройства гранулы рабочего агента и обрабатываемые детали загружаютс через отверсти в верхней части цилиндрического полого элемента 4. Ог привода (на черте0 же не показан) полубарабаны 1 привод тс во вращение в одну сторону.During the operation of the device, the working agent granules and the workpieces are loaded through the holes in the upper part of the cylindrical hollow element 4. In the drive (not shown in the drawing), the half drum 1 is rotated in one direction.

На этом этапе по вление о тносительных скоростей перемещени гранул рабочего агента и соседних к ним обрабатываемых деталей обуславливаетс разностью их объемных весов и разностью -рассто ний от центра чаш, а высока плотность взаимодействи деталей и гранул агента - наличием малоподвижных слоев содержимого контейнера, прилегающих к элементу 4,и значительной величиной центробежной силы, перемещающей массу.At this stage, the occurrence of the relative speeds of movement of the granules of the working agent and the machined parts adjacent to them is determined by the difference of their volume weights and the difference of the distances from the center of the panes, and the high density of interaction of the parts and granules of the agent adjacent to the element 4, and a significant amount of centrifugal force moving mass.

Claims

5 At the point of transition from semi-drums 1 to element 4, the maximum accelerated parts are inserted into the vibrating layers of the container contents. At the same time, a significant metal layer is removed from the surfaces being processed. A significant part of the energy, parts, and agent granules are lost further in the direction of rotation of the semi-reels along element 4, when new vibrations are introduced into the vibrating layers of the working agent, pushed by new rolling semi-reels with actively moving layers. But since the element 4 is adjacent to it: the oscillating motion is communicated to the layers, as a result, the trajectory — the movement of a unit mass in this period takes on the form of petals. Such a trajectory can be set in vibratory settings when applying to the container, oscillations of the main frequency, high-frequency oscillations. Accumulated at the middle of the wall for the element 4 in the direction of rotation of semi-drums, low-mobility layers under the action of their own weight and more active layers pushing from the bottom move along the same multi-path trajectory moving Hc1D ejecting from semi-reels with active moving layers of container contents inside semi-drums. they are again affected by centrifugal forces and the process described is repeated many times. The container can be unloaded through a hole hermetically closed during processing in the lower part of element 4 by slow rotation of semi-drums. The wall of the element 4, in addition to increasing the density of the interaction of the adjacent granules and parts, by their oscillations, facilitates the movement of parts along a multi-path trajectory. The direction of the relative speeds of movement of the granules and parts coincides with the tangent and multi-petal trajectory at each of its points, which means that the direction of the relative speeds constantly changes. So, vibrating the wall of the hollow element 4 leads to intensification of the cutting processes by increasing the density of interaction of the granules and parts in the entire mixed volume and creating a multitude of layers in the mixed mass, interacting with each other in various directions, i.e. a high degree of turbulence in the stirred mass is achieved. The invention The device for abrasive machining of parts according to ed. No. 656816, characterized in that, in order to increase processing performance, the hollow element is kinematically connected with semi-drums and provided with a vibrator. Sources of information taken into account in the examination 1. Application W 2374990 / 25-08, cl. In 24 In 31/00, 21.06.76, according to which the decision to issue an author's certificate was made.