SU899331A1 - Device for centrifugal-abrasive machining of parts - Google Patents

Description

(5) DEVICE FOR CENTRIFUGAL-ABRASIVE

The invention relates to the surface treatment of parts with a free abrasive and can be used in the engineering and other industries.

Known devices for centrifugally-abrasive machining of parts, containing a cylindrical container with a rotating bottom, made in the form of a bowl, and the cover SP.

The disadvantage of these installations is the impossibility of separating the machined parts from the abrasive media.

The purpose of the invention is to mechanize the separation and unloading of workpieces from a container.

This goal is achieved by the fact that there are holes in the shell of the container, the dimensions of which are larger than the details of the parts and smaller than the sizes of the abrasive granules, and the lid is made in the form of an inverted cup, concentrically installed.

TH in the container with the possibility of blocking the opening of the container, while the lid is mounted with the possibility of reciprocating movement from the hydraulic mechanism introduced into the device, the shell of the container is spring loaded, and a compensating ring is installed between the shell and the bottom.

 Figure 1 shows schematically

10, the proposed device for centrifugal abrasive machining of decal C of FIG. 2 is the node I of FIG. 1 in the position of the Scientific Research Institute for unloading parts from a container. Device for centrifugal abra

15 zivny processing of parts contains a cylindrical container 1, the shell of which is made perforated and rigidly fixed to the bracket on the 2, mounted in rails

20 axles x 3 and supported by springs, adjusted for a predetermined force. The cover 5 is made movable in the axial direction. Bottom she leans

pillars 7 are guided through holes in the lid of the container obstruction 6. A hydraulic cylinder rod 8 mounted on a cross 9 is pivotally connected to the lid 5. A perforation ring 11 of polyurethane is installed at the end of the rotating bottom 10 mounted on a shaft 12 mounted in swing bearings 13. Inside the bed I there is an electric motor 15 with a belt drive 16. The pallet 17 serves to drain the liquid with abrasive filler processing waste, and the tray T8 to collect the machined parts.

The device works as follows.

The container is loaded with a mixture of abrasive filler and parts. The cover S is lowered. From the motor 15, the rotational movement of the bottom 10 is transmitted through the belt transmission 16. The working mixture is thrown by centrifugal force to the walls of the cover 5 and performs a toroidal-screw movement. The liquid with processing waste passes through the holes located along the entire periphery of the rotating bottom 10 and enters the sump 17 from which it enters the hydraulic tank. After the processing is completed, the hydraulic cylinder 8 is turned on, which lifts the lid 5. The perforated part of the wall of the container 1 is opened and the parts whose dimensions are smaller than the holes in the wall are ejected into the chute 18 by the action of the centrifugal blade. the filler falls to the bottom. The hydraulic cylinder 8 is turned on, which lowers the cover 5 to the operating position.

The proposed device makes it possible to mechanize the separation of the machined parts from the abrasive and unloading them from the container, which increased labor productivity and improved

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ease of use. In addition, the installation of a compensating ring, such as polyurethane, between the shell and the rotating bottom, as well as

5 Springing of the shell provides the possibility of compensation for wear. friction parts, and therefore eliminates jamming of the rotating bottom, which increases the reliability of the proposed design in operation.

Claims (3)

Invention Formula 5 1. A device for centrifugally-abrasive machining of parts, containing a cylindrical container with a rotating bottom, made in a worm bowl, and a lid, characterized by the fact that, in order to mechanize the separation and unloading of workpieces from the container, larger holes 25 sizes of parts and smaller than the sizes of abrasive g} eanul, and the lid is made in the form of an inverted glass, concentricly installed in the container with the possibility of overlap from 3Q into the container, while the lid is mounted with the possibility of reciprocating movement from the hydraulic mechanism introduced into the device.  2. The device according to A.1, about tl and h and her, so that the shell of the container is spring-loaded. 3. A device as defined in Claims 1 and 2, in that, in order to prevent seizure of the bottom, the device is provided with a compensating ring installed between the shell of the container and the rotating bottom. Sources of information taken into account during the examination 1. USSR author's certificate №, cl. On 24 May 31/08, 1976.