SU895647A1

SU895647A1 - Percussion-action pneumatic tool

Info

Publication number: SU895647A1
Application number: SU802908715A
Authority: SU
Inventors: Феликс Ильич Небылицкий; Вячеслав Александрович Попов; Александр Иванович Жабин; Дмитрий Владимирович Таранов
Original assignee: Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения
Priority date: 1980-04-11
Filing date: 1980-04-11
Publication date: 1982-01-07

Description

1one

Изобретение относитс к механосборочному инструменту, а более конкретно к устройствам дл забивки и выбивки штифтов, шпонок при сборке и пригонке .The invention relates to a machine-assembling tool, and more specifically to devices for driving and knocking pins, keys during assembly and fitting.

Известно устройство ударного действи , содержащее пневмоцилиндр с ударным поршнем и штоком 1 .A percussion device is known comprising a pneumatic cylinder with a percussion piston and a rod 1.

Основным недостатком известного устройства вл етс невозможность использовани его дл выбивки деталей из глухих отверстий.The main disadvantage of the known device is its inability to use it for knocking out parts from blind holes.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс пневматический инструмент ударного действи , содержащий цилиндрический корпус, воздухораспределитель и размещенный в корпусе полый ударник, образующий с корпусом две полости, соединенные с воздухораспределителем 23.Closest to the invention according to the technical essence and the achieved result is a pneumatic percussion instrument comprising a cylindrical body, an air distributor and a hollow drummer placed in the body, which forms two cavities connected to the air distributor 23.

Недостатком известного пневматического инструмента ударного действи вл етс узка область применени .A disadvantage of the prior art percussion pneumatic tool is the narrow field of application.

Целью изобретени вл етс расйирение области применени .The aim of the invention is to expand the field of use.

Указанна цель достигаетс тем, что инструмент снабжен золотником двухстороннего действи , расположенным в полости ударника; размещенными в корпусе по обе стороны ударника бойками, каждый из которых образует одним из своих торцов и соответству-.This goal is achieved by the fact that the tool is equipped with a double-acting spool located in the cavity of the hammer; placed in the housing on both sides of the striker strikers, each of which forms one of its ends and correspondingly.

5 ющей торцовой стенкой корпуса дополнительную полость-, . сообщенную с воздухораспределителем , и выполнен с расточкой, и размещенными в расточках клапанами, с которыми попеременно5 the enclosing end wall of the housing is an additional cavity-,. communicated with the air distributor, and is made with a bore, and placed in the bore valves, which alternately

10 взаимодействует ударник.10 interacts drummer.

На чертеже схематически изображен пневматический инструмент ударного действи в разрезе.The figure schematically shows a pneumatic percussion tool in section.

Пневматический инструмент ударного.действи состоит из цилиндрического корпуса 1, внутри которого размещен полый ударник 2, образующий с крышками 3 и 4 корпуса две полости 5 и 6, соединенные с воздушной систе20 МОЙ 7 через воздухораспределитель 8. Крышка 4 корпуса содержит присоединительный элемент 9. Внутри корпуса по обе стороны ударника расположены бойки 10 и 11, .каждый из которыхA pneumatic percussion instrument consists of a cylindrical body 1 inside which a hollow drummer 2 is housed, forming two cavities 5 and 6 with lids 3 and 4 of the body, connected to the air system 20 MY 7 through the air distributor 8. The body cover 4 contains a connecting element 9. Inside hulls on both sides of the drummer are located strikers 10 and 11, each of which

25 образует полости 12 и 13, соединенные с воздухораспределителем 8. Б бойках выполнены внутренние расточки, в которых размещены клапаны 14, 15, взаимодействующие своими выступами25 forms cavities 12 and 13 connected to the air distributor 8. The internal dorsing bores are made of the strikers, in which the valves 14, 15 are located, interacting with their projections

Claims

30 alternately with a hammer 2, in the cavity of which a spool 16 of double-acting action is provided. The valves are under the action of springs 17, 18, and the strikers are springs 19, 20 supported on rings 21, 22. There is an opening in the cap that connects one of the cavities to the inlet system through the starting valve 23. In the air system. torus 24 pressure. The connecting element is connected to the driven part 25 by means of a screw 26 and a cap nut 27. The pneumatic percussion tool works as follows. Prior to operation, the drummer 2 is positioned between the heads 10 and 11 and the valves 14, 15 are in the closed position. In order to start the movement of the firing pin, after connecting the air system 7 to the compressed air network, you should briefly press the start valve 23, while the compressed air will flow into the cavity formed by the striker 10 and the end face of the firing pin 2, and move the firing pin up (according to the location of the device in the drawing ) .. In this case, the end face of the striker interacts with the protrusion of the valve 14, and the air through the resulting passage will begin to flow into the upper cavity 5 of the cylindrical housing 1. This air will move the spool 16, which at It covers the channel made in the drummer that provides the connection between the upper cavity and the atmosphere through the holes in the middle of the hull. In this case, the impactor 2 moves downwards, acts on the protrusion of the valve 15, due to which the air flows into the lower cavity 6 and moves the spool 16 and the impactor 2 in the opposite direction. In the following, the gate forward motion will be repeated until the device is disconnected from the compressed air network. In order to carry out a direct blow, izolosty 12 and 13 are used, formed by the strikers 10 and 11 and the lids of the 3 and 4 corps. Compressed air enters these cavities through the air distributor 8 and the pressure regulator 24. Depending on the position of the air distributor handle, one of the cavities is connected to the atmosphere, and the other to an air system. When cavity 13 is connected to the atmosphere and cavity 12 is connected to the air system, parts are clogged, since the downward shock is not absorbed, and upwardly absorbed by the compressed air in the cavity between the die 11 and the cover 3. When cavity 12 communicates with atmosphere, and the opposite cavity 13 is filled with air, there is a knockout details. Using the air pressure regulator 24, it is possible to change the force of the air pressure, i.e. depreciation capacity of the corresponding cavity. The implementation of a pneumatic percussion instrument in accordance with the invention will greatly expand its scope. Invention Pneumatic percussion instrument comprising a cylindrical body, an air distributor, and a hollow drummer placed in the body, forming two cavities with the body, connected to the air distributor, characterized in that it is equipped with a double-acting spool located in the hammer cavity to expand the area of use. placed in the housing on both sides of the striker strikers, each of which forms one of its ends and the corresponding end wall of the housing complement nuyu cavity communicating with an air distributor, and with a bore configured and arranged in the bores valves which alternately engages the striker. Sources of information taken into account in the examination 1. Avtorskre certificate of the USSR 212030, cl. E 04 G 21/12, 1966.

2. Patent of Great Britain No. 1237892, cl. In 4 C, 1970 (prototype).