SU1655679A2 - Mechanism for thermal removal of dents - Google Patents

Abstract

The invention relates to mechanical engineering and m. It was used, in particular, when processing products in the environment of heated reactive gases for burning off surface defects. The purpose of the invention is to increase the reliability of the design and increase the effective volume of the working chamber by eliminating the effect of recoil force on the structure at the time of release of the combustion products of the mixture. The device for thermal deburring is provided with a second exhaust valve located in the working chamber coaxially and opposite to the first exhaust valve. The presence in the working chamber of two coaxially arranged exhaust valves allows increasing the useful volume of the chamber and increasing the reliability of the design by eliminating the effect of recoil forces at the time of release of the combustion products of the mixture on the 4-sludge structure. J

Description

The invention relates to mechanical engineering and can be used, in particular, when processing products in an environment of heated reactive gases in order to burn off surface defects.

The aim of the invention is to increase the reliability of the design of the device and increase the effective volume of the working chamber by eliminating the impact of recoil on the structure at the time of release of the combustion products of the mixture.

FIG. 1 shows the proposed device in the working position, FIG. 2 shows the construction of a bayonet lock, a plan view, a section A-A in FIG. 1 in FIG. 3 - the initial position of the device; in fig. 4 shows a section BB in FIG. 3 (design elements of thin-walled glass).

The device for thermal deburring of products contains a frame 1 with four strand columns 2, on which a working chamber 3 is fixed with two exhaust valves 4 arranged coaxially and opposite to each other, a sleeve 5 and a flange 6 in which an electric candle 7 and a valve are placed 8 accumulations. On the outer collar of the chamber 3 there is installed a rotary sleeve 9 connected to the power cylinder 10. The bottom 11 with the product 12 is made with the possibility of reciprocating movement with the help of the power cylinder 13, the rod 14 of which is fixed on the frame 1.

In the inner cavity of the working chamber 3, a thin-walled glass 15 is fixedly supported on the sleeve 5 by means of stops 16 arranged in a staggered order. To seal the working chamber contains seals 17. In the walls of the working chamber and in the bottom areas, it comes

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close to the seal 17, the channels 18 are made for coolant. The bottom 11 and the sleeve 9 are made with corresponding protrusions 19 and grooves 20 of a bayonet type.

The device works as follows.

A workpiece 12 or a container with fine parts is mounted on the bottom 11. Then, using the power cylinder 13, the bottom with the product moves upward until the sealing lip of the bottom contacts the seal 17, and the projections 19 of the bottom 11 enter the grooves 20 of the rotary sleeve 9. After that, through the power cylinder 10, the sleeve 9 rotates around its axis and relative to the working chambers 3 and bottom 11 at an angle a with the formation of a bayonet lock, thus by means of sleeve 9 a force closure is provided between the working chamber and the moving bottom. After sealing the working chamber 3 through the filling valve 8, the components of the hot mixture with an excess of oxidant are supplied into its cavity. The combustible mixture is ignited with the aid of an electric plug 7. High temperature is generated. During combustion of the mixture, and an excess of oxidizing agent ensures the burning of burrs, sharp edges and other defects of the product. The release of combustion products from chamber 3 is carried out through two coaxially arranged exhaust valves 4, the recoil forces arising in this case are oppositely directed and compensate each other. The maximum temperature and pressure of gases during combustion occur only in the cavity of a thin-walled glass 15. Shielding exhaust valves 4.

Exhaust combustion products are directed to exhaust valves 4 through an annular gap with stops 16 formed by the outer wall of the cup 15 and forcibly cooling sleeve 5 (shown by the arrow in Fig. 1), which allows for intensive cooling of exhaust gases and increase the reliability of valves 4, as well as significantly reduce noise.

Through the exhaust pipe

the combustion products are removed from the production area, after which the sleeve 9 is rotated by the power cylinder 10 and in the opposite direction and the bottom 11 with the workpiece 12 is lowered to the initial position by means of the power cylinder (Fig. 3). After removal of the workpiece and installation of the next product on the bottom 11, the working cycle is repeated.

The presence in the working chamber of two coaxially arranged exhaust valves allows to increase the useful volume of the working chamber, to increase the reliability of the design

by eliminating the impact of recoil forces at the time of release of the products of combustion of the mixture on the structure

Claims (1)

The invention The device for thermal deburring auth.St. N ° 988499, characterized in that, in order to increase the reliability of the design and increase the effective volume of the working chamber by eliminating the effect of the recoil force on the structure at the time of release of the combustion products of the mixture, it is equipped with a second exhaust valve located in the working chamber coaxially and opposite to the first exhaust valve. YU Fig 2 FiZ 6-B sixteen