SU1593925A1 - Granule of filler for dimensional abrasive working - Google Patents

Abstract

The invention relates to components of working media for volumetric vibration treatment and can be used in the mixing of powdered materials, as well as in operations associated with the surface finish of machine parts and instruments. The aim of the invention is to increase the productivity of processing by increasing the number of working movements of the shell. The granule consists of the shell 1 and the weights 2 associated with it by means of elastic threads 3. Such an embodiment of the granule makes it difficult to move due to the oscillations of the weights and parts of the shell. 2 hp f-ly, 2 ill.

Description

(54) FILLER GRANULE FOR VOLUME-ABRASIVE PROCESSING (57) The invention relates to components of working media for volumetric vibration processing and can be used for mixing powdery materials, as well as for operations related to surface finishing of machine parts and devices. The aim of the invention is to increase processing productivity by increasing the number of working movements of the shell. The granule consists of a shell 1 and loads 2, connected with it by means of elastic threads 3. This embodiment of the granule makes it possible to complicate its movement due to fluctuations of the loads and parts of the shell. 2 s.p. f-ly, 2 ill.

1593925 A1

The invention relates to components of working media for volumetric vibration processing and can be used when mixing powdered materials, as well as in operations related to surface finishing of machine parts and devices.

The aim of the invention is to increase processing productivity by increasing the number of working movements of the shell.

In FIG. 1 shows a granule with a core in the form of one ball on an elastic thread, section; in FIG. 2 - the same, with a core in the form of two balls on elastic threads.

The filler granule for volume-abrasive processing contains a shell 1 and a core made in the form of weights 2 mounted on elastic threads 3 fastened to the sheath, while the weights 2 are installed inside the sheath 1 without the possibility of contact with each other and made in the form of balls with a diameter ratio no more than 1,5: 1.

The manufacture and assembly of granules is as follows.

Shell 1 is made, for example, by drawing on a stamp of two halves of a regular polyhedron. The plates 4 are cut, for example, on scissors, followed by drilling holes in them for the elastic thread 3 to pass through it. The load 2 is made, for example, by turning on the machines of the turning group (defective ball-bearing industry balls can be used as load 2), they are drawn up in the load 2 hole 5 ,. for example, by EDM or drilling. Elastic threads 3 are made, for example, by sintering from rubber. The elastic thread 3 is fastened with the load 2 through the hole 5 and fastened at the other end with the plate, 4. The plate 4 together with the elastic thread 3 and the load 2 are fastened to the inner cavity of the shell 1 at the intersection of the faces of the polyhedron, for example, by welding (Fig. 1), both halves of the shell 1 are fastened by welding. A cleaning surface 6 is performed on the outer surface of the shell 1, for example, by applying a diamond-containing layer by the galvanic method. The pellet is ready to go. The casing 1 can be made of steel, aluminum or other material, providing the possibility of • obtaining the casing by progressive methods, such as hoods, and can be made, for example, of steel 08 KP.

The number of faces of the shell 1 can be 12-24, depending on the size of the granule. When the number of faces of the shell 1 is less than 12, the size of the cleaning surface 6 decreases, the amplitude of oscillations increases, and when the number of faces of the shell 1 is more than 24, the production of granules becomes more complicated. In order to simplify the manufacture of the shell 1, the granule can be made in the form of a regular polyhedron. The ratio of the length of the face of the shell 1 to the wall thickness can be 30-100 and is taken depending on the necessary vibrational characteristics of the faces of the shell 1. When the ratio of the length of the face of the shell 1 to the wall thickness of less than 30, the vibrational properties of the faces of the shell 1 deteriorate, and when the ratio of the length of the face the sheath 1 to a wall thickness of more than 100 decreases the strength of the sheath 1. The plate 4 can be made of the same material as the sheath 1, to use the waste material in the manufacture of the sheath 1. The elastic thread 3 can be made it is made, for example, from IRP-1353 rubber. the length of the elastic threads 3 is taken from the condition of exclusion of mutual contact of the goods 2 when several loads 2 are simultaneously placed inside the shell 1. The number of goods 2 placed inside the shell 1 can be taken from one to three. When the number of goods 2 more than three is complicated by the manufacture of granules. The number of goods 2 also depends on the number of faces of the shell 1 and is assigned a multiple of the number of faces for the uniform placement of elastic threads 3 in the volume of the shell 1.

The value of the diameters of the balls of goods 2 can be assigned from the condition of ensuring the ratio of the diameters of the balls is not more than 1.5: 1 and is determined by the dimensions of the shell 1, while the ratio of the length of the face of the shell 1 to the largest diameter of the ball of cargo 2 can be from 2 to 3 and is selected from the condition ensure maximum properties of the faces of the shell 1. The load 2 can be made, for example, of steel ШХ 15.

The filler granule for volume-vibration processing contains a shell 1. made of steel 08 KP 0.5 mm thick, in the form of a regular 16-sided polyhedron with a face length of 20 mm. The number of cargoes is two, the length of the elastic thread 3 is 35 mm each. the diameter of the ball of the first load is 2-8 mm, the diameter of the ball of the second load is 2-6 mm. The material of the elastic thread is rubber IRP-1353 with a diameter of 1.5 mm, the material of the goods 2 is steel ШХ 15, the cleaning surface 6 is made by applying a diamond-containing layer by the galvanic method. The fastening of elastic - threads 3 with the sheath 1 is carried out using plates 4 made of steel 08

KP by welding, the shell 1 fasten the parts by welding, while the shell 1 consists of two symmetrical halves obtained by drawing on a stamp.

During processing, the granules together with the workpieces are loaded into a vibrocontainer, the mechanism for moving the vibrocontainer in space is turned on. As a result of the contact of the machined parts with the cleaning surfaces 6, the machining of the parts takes place, while the interaction of loads 2 of different weights with the faces of the shell 1 with a different value of the impact force. The connection of the load 2 with the shell 1 through the elastic thread 3 causes the vibration of the faces of the shell 1 with different frequencies, as well as the movement of the granules in the container more chaotic and uneven due to fluctuations of the loads 2.

Claims (3)

Claim 1. The granule of the filler for volumetric abrasive processing, containing a core placed with the possibility of movement in its surrounding shell, characterized in that, in order to increase processing performance, the granule is equipped with an elastic thread, 10 assigned to the lubrication of the core with the shell. 2. The granule according to π. 1, with the fact that the core is made in the form of several weights, and the length of the elastic threads is 15 brane from the condition of exclusion of the possibility of contact of goods with each other. 3. G wounded by paragraphs. 1 and 2, it is clear that the loads are made in the form of balls with a ratio of maximum and mini 20 small diameters no more than 1,5: 1.