SU1558844A1 - Suction gripper - Google Patents

Abstract

The invention relates to lifting devices and can be used to perform various work on land and under water. The purpose of the invention is to increase reliability. The grip contains mounted on the casing 12 chamber 1 connected to the cavity of the vacuum forming chamber 6, composed of toroidal chambers 7, and spool-type distribution device 13, the channels of which are connected to a source of compressed air, atmosphere and cavity of chambers 7. When air is supplied to the cavity of chambers 7 or In the cavity of the casing 12, the toroidal chambers 7 expand or contract, causing the creation or elimination of discharge in the cavity of chamber 1. 8 Il.

Description

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FIG. five

The invention relates to lifting devices that use a vacuum to capture and hold a cargo during its lifting and transportation, and can be used to perform various work on land and under water.

The purpose of the invention is to increase the reliability of work.

FIG. 1 shows a vacuum gripper with an elastic vacuum-forming chamber, general view; in fig. 2 - spool switchgear control, general view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2; in fig. 5 - vacuum gripping load holding mode, general view; in fig. 6 is a sectional view BB in FIG. five; in fig. 7 - vacuum capture in the mode of release of cargo, general view; in fig. 8 - section G-Y in FIG. 7

Vacuum gripping with an elastic vacuum-forming chamber (Fig. 1) consists of three parts connected tightly between the oboe. The first part includes a chamber 1 containing an external sealing element, which, depending on the requirements for gripping, can be of various designs, for example, a plate. Along the edges of the outer part of the vacuum-forming chamber 1, screw connecting pins 2 are installed.

The second part consists of a pallet 3, the pre-; g of a rigid plate with you-; ,; screwed connecting pins 4 and connecting holes 5 are mounted on the edges of the center, glued on all sides, with sealing material. On the pallet 3 hermetically attached is an elastic vacuum-forming chamber 6, which is a tubular cylindrical structure made up of toroidal chambers 7, which are hermetically connected along the end; the internal cavities of the toroidal chambers 7 are interconnected by openings 8 and are connected to a compressed gas system by means of a flexible hose 9. A rigid diaphragm 10 with a clamp 11 is tightly attached to the end surface of the tubular cylindrical structure on the connection side of the hose 9.

Part one consists of casing 12 and control switchgear 13, which is connected to elastic vacuum-forming chamber 6 by means of flexible hose 9. Control switchgear 13, depending on the requirements for vacuum gripping, can be of the most varied design, for example in the form of dual spool device (Fig. 2-4).

The dual spool device (Fig. 2) consists of a housing 14, the lower part of which is hermetically sealed with a bottom cover 15. The spool devices are installed in the housing 14, containing spools 16 and 17 with adjusting sleeves 18 and 19 and squeezing springs 20 and 21. buttons 22 and 23 are screwed on or in their place

Electromagnetic pressure devices can be installed. The spools 16 and 17 are shafts with bulges with which they overlap the working gas distribution channel 24. In FIG. 3 shows the implementation of channels 25 and 26 of exhaust gas emission into the atmosphere. FIG. 4 shows the implementation of the channel 27 for supplying compressed gas from an external source to the internal cavity 28 of the dual spool device.

When using vacuum gripping under water, the design of the dual spool device as described above is different in that the outlet of the exhaust gas emission channel 26 is blocked by a check valve.

0 (not shown). On the basis of the proposed design, it is possible to make a sectional vacuum capture of any given capacity. Sectional vacuum grippers can be of two types: rigid sectional vacuum vacuum gripper, flexible sectional vacuum gripper.

A rigid sectional vacuum gripper is a group vacuum gripper, in a single sealed enclosure of which, divided into sections, insulated from each other, a group of elastic vacuum-forming chambers, controlled by one control switchgear (not shown), works intact. The flexible sectional vacuum gripper represents a group vacuum gripper, the elements of which are vacuum grippers with an elastic vacuum-forming chamber without a control switchgear. The vacuum gripping elements are mounted at some distance from each other on the base allowing them to move relative to each other, or the vacuum gripping elements are attached to the housing by means of hinges towards each other. The control of the vacuum gripper elements is one control switchgear associated with flexible hoses (not shown).

Vacuum gripping with elastic vacuum forming chamber works as follows.

0 Channel 27 is connected to a source of compressed air, which, once in the internal cavity 28 of the dual spool device, raises the spools 16 and 17 to the extreme upper position. When this spool 16 blocks the access of compressed air in the internal cavity 28 of the dual spool device in the working gas distribution channel 24 before the spool 17 overlaps the output

five

an opening of the same channel, and an increased pressure is formed in cavity 2g. This pressure, acting on a rigid diaphragmch 10, compresses the elastic vacuum-forming chamber 6.

The mode of capture of the cargo (Fig. 5 and 6). The vacuum gripper is pressed against the surface of the body to be lifted and the button 22 is pressed (Fig. 5). The spool 16 moves down, opening the access of compressed air from the cavity 28 through the working gas distribution channel into the internal cavity of the elastic vacuum-forming chamber 6. Lastly, filling with compressed air, raises the rigid diaphragm 10 with the clamp And up. A low pressure chamber D is formed. The vacuum gripper is pressed against the surface of the lifted body. Then, the pressing force is released from the button 22, the spool 16 under the influence of compressed air, which is located in the internal space 28 of the control switchgear, returns to its original position, blocking the access of the compressed air to the internal cavity by the elastic vacuum-forming chamber.

In the hermetic cavity Ј, the air pressure is above atmospheric, and with an increase in the volume of the elastic vacuum-forming chamber 6, it may increase even more. Therefore, the sealed cavity Ј is connected by means of channels 25 and 26 to the atmosphere (Fig. 6). By pressing the button 22 simultaneously with the supply of compressed gas into the internal cavity of the elastic vacuum-forming chamber 6, excess pressure is released from the sealed cavity Ј through channel 25 and outlet channel 26 to the atmosphere.

When using a vacuum gripper with an elastic vacuum-forming chamber under water, the principle of operation in the mode of gripping cargo is similar to that described.

The mode of release of cargo (Fig. 7). When the button 23 is pressed, the valve 17 moves downward, opening the working channel 24. The compressed gas, which is in the internal cavity of the elastic vacuum-forming chamber 6, passes into the hermetic cavity Ј. In the latter, the pressure rises, the rigid diaphragm 10 with the clamp 11 moves downward, compressing the elastic vacuum-forming chamber 6. The load is released. After removing the force from the button 23, the valve 17 under the pressure of the compressed gas located inside the cavity 28, returns to its original position, shutting off the connection of the internal cavity of the elastic vacuum-forming chamber 6 and the internal sealed cavity.

When using a vacuum gripper with an elastic vacuum-forming chamber under water, the mode of releasing the load is performed (Fig. 6 and 7) by pressing the buttons 22 and 23 simultaneously. In this case, the compressed gas under pressure (always above the ambient pressure) enters the internal hermetic cavity Ј and through

0, the exhaust gas emission channel 25 and the exhaust channel 26 escape into the environment (FIG. 6). Thus, the pressure in the sealed cavity Ј will not exceed the ambient pressure, which

5 prevents water from entering the inside of the vacuum pickup. A non-return valve installed in the outlet channel 26 prevents the vacuum pickup from getting water inward in the event that when performing any work under water

0 the pressure in the cavity Ј will be less than the ambient pressure.

The principle of operation of various options for vacuum gripping with an elastic vacuum-forming chamber is identical to the following 5 NOMUs formula of the invention

A vacuum gripper comprising a housing with a sealing lip at the bottom

0 parts forming a vacuum chamber with the cargo plane, and a vacuum means, including a flexible, vertically movable shell with a liner communicated with the vacuum chamber and fixed to the body,

5, characterized in that, in order to increase reliability, the vacuumization means further includes a hollow casing encompassing an elastic sheath made of one above the other and toroidal chambers interconnected, and a spool valve made with two vertical channels in which spools, and horizontal channels communicated with vertical channels, one of which communicates with the upper toroidal chamber, the second with the housing cavity, and the third with the atmosphere in the bottom part connected to the vacuum source and communicated with the channels, while the spools are made with the possibility of alternately blocking the first two horizontal channels.

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Claims (1)

Claim A vacuum grip comprising a housing with a sealing collar in the lower part forming a vacuum chamber with the cargo plane, and a vacuum means including an elastic shell movable in a vertical plane with a liner connected to the vacuum chamber and fixed to the housing, characterized in that, In order to increase reliability, the evacuation means further includes a hollow casing covering an elastic shell made of toroidal chambers located one above the other and interconnected, and a lotus distributor made with two vertical channels in which the spools are located and horizontal channels connected with vertical channels, one of which is connected with the upper toroidal chamber, the second with the casing cavity, and the third with the atmosphere in the bottom part connected to the source evacuation and communicated with the channels, while the spools are made with the possibility of alternately overlapping the first two horizontal channels. Fie. 1 ι G ~ U A 5 FIG. 1 FIG. 3 FIG. 7 fie. 8 Compiled by A. Gaevsky Editor N. Yatsola Order 813 Tehred I. Veres Corrector V. Girnyak Circulation 603 Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology 113035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Production and Publishing Plant "Patent", Uzhhorod, st. Gagarina, 101