SU1333547A1 - Apparatus for centrifugal planetary machining of parts - Google Patents

Abstract

The invention relates to the engineering industry, can be used for surface treatment of parts and allows to intensify the process. The device for centrifugal processing of sheet metal parts is a system of working chambers 6 that perform planetary motion, in which they are stacked interspersed with abrasive material and compacted with convex or sharp parts. The drums 16 roll around in the working chambers while simultaneously making axial movement; as a result, the parts are exposed to mutually perpendicular centrifugal fields, providing a force of interaction between the abrasive and the surface of the part when they are intensively mixed. 6 Il. 7 (58) s (L ftsg.G

Description

one

The invention relates to the engineering industry and can be used for the surface treatment of parts, such as deburring, and the like.

The purpose of the invention is to intensify the process.

Fig, 1 shows the device, a general VIEW} in Fig.2 - the same, top view; in fig. 3 and And examples of installation in the working chamber of various sizes and the number of drums; figure 5 - camera and drum, a longitudinal section; figure 6 - camera, top view, with cross-section of the drums.

The device contains a base 1, on which the body 3 is hung with the possibility of rotation in the pins 2

The bearings of the housing 3 are set to start-up; 20 displacements are dependent

The total shaft 4 is rigidly connected to the container 5, made in the form of a bowl, in the bearings of which the working chambers 6 are fixed with a cylindrical inner surface. The gear rims 7 are rigidly fixed on the working chambers 6 and engage with the gear element 8 (for example, a worm) fixed on the shaft 9 with an axial bore placed in the cavity of the shaft 4 and connected to the drive 10 through an endless transmission. The actuator 10 through the flange 11 is hinged on the hinge rack 12 rotatably for tensioning the endless gear and fixed to the housing 3 by means of the bolt 13. The doors 14 and 15 can be opened when loading and unloading the working chambers. In the cavity (Figs. 3 and 4) of the working chambers 6, the drums 6 are installed with spherical (thick) ends with the possibility of their rolling on the inner surface of the working chambers. The internal cavity of the drums corresponds to the shape of flat parts (fig. B) that require treatment with a hard abrasive carrier free abrasive in piles (). The shaft 9 in the lower part is provided with a screw thread 17, which is included in the oil assembly of the planetary gear cover. The radial holes 18 are made in the valleys of the cutting of the screw and communicate with the shaft 9 and

a little compilation. The serrated pair Z and Z can be interchangeable and the angular velocity is W and the capacitance 5 is regulated with their help. The angular speed UJ of the working chambers 6 is regulated by

333547 pulleys (sprockets) d,

endless transfer of the drive 10. In the end covers 9 of the working chambers 6 there is a hole (not indicated) for supplying the working fluid, which is discharged from the working chamber together with the sludge in a known manner. On the inner surfaces of the lugs 19, end cams 20p are fixed, whose working profiles interact with the convex ends of the drums 16. The working profiles of the cams 20 in each chamber are parallel in pairs and do not prevent the drums 16 from rolling around the cylinder of the working chambers, giving the drums reciprocating along the working cameras, movement. Frequency of these

on the number of working cam profiles 20 The device works in the following way, um.

Stacked thin sheets

25, interspersed with an abrasive carrier (abrasive thin circle on a vulcanite bond, emery cloth) or abrasive particles into the drums 16 (Fig. 5) are compacted with convex nails so that the parts and the abrasive are free to move relative to each other (along the surfaces details), In the drum 16 with a length of 1 and a diameter of d 35

There are n details:

P -

where -S is the length of a single cell (the sum of the thickness of the part, the diameter of the abrasive 4Q particle and the size of the gap necessary for the force interaction of the surface of the part and the abrasive grain). Drums 16 (the quantity depends on the ratio of the diameters d and yrk)

45 are installed: into the working chambers 6 (figs. 3 and 4) with the possibility of running around the cylinder dpn of the working chamber. Crash 19, turn on the drive .10, with the result that the working chambers

50 6 have their own angular velocity, portable angle 13 and speed (together with capacity 5), and drums 16, run in dfft (they also acquire axial acceleration, which depends on (-U and 1x / g) em sign as many times as the working profiles are made on the cam 20 (in Fig. 5 two working profiles are shown, and

fi1, 2 the number of working profiles is three). The drums 16 roll around in the working chambers and perform axial movements, driving the mass of the load (parts and grains) into relative movement (force interaction), as a result of these movements, the mass of parts and abrasive particles (abrasive media) are exposed to mutually perpendicular centrifugal fields providing a force of interaction between the abrasive and the surface of the part with their vigorous stirring necessary for uniform processing. In the case of processing thin sheets of within the limits allowed by the dimensions of the cavity (across the axis of the drum), and the abrasive particles glide over the entire surface. In case of using a solid abrasive carrier for processing small movements of the part relative to its surface, it is sufficient to process the surface.

The drums 16, displaced in both directions along their axis from the cams 20, due to the inertia of the parts and abrasive particles (abrasives) having a certain mass, create conditions for two-sided alternating surface treatment of the parts with some force.

At the end of the processing cycle, the drive 10 is turned off, the housing 3 is set with the axis of the shaft 4 in a horizontal position, the covers 19 are opened and the drums 16 are removed from the working chambers. Next, the processing cycle is repeated /

The device can be used for processing small parts (washers, etc.).

Claims (1)

Invention Formula A device for centrifugal planetary processing. Parts containing working chambers 5 installed in the vessel in which drums with parts are installed and a working medium are different in that, in order to intensify the process, the capacity is made in the form of a bowl, on the side walls of which mounted bearing units, E of which are installed working chambers with the possibility of planetary rotation in the horizontal plane by means of a worm gear inserted into the device, and the ends of the drums are made c and are installed with the possibility of contact with the cams introduced into the device mounted on the inner ends of the working chambers, Fiz.Z my demQ / ii / OVRO5 your details 6