Vibrotumbling machine

Abstract

The present invention provides a vibrotumbling machine (10) in particular for inner surfaces of a manufactured product (18) by means of an abrasive mix comprising several elements of not particularly hard material, abrasive particles, water and additives, the machine (10) comprises vibrating means (20,30) to cause a relative movement between the various elements of the abrasive mix and the manufactured product (18) in order to obtain a surface processing of the same, the vibrating means are associated with the manufactured product (18) to make it vibrate directly, thus obtaining the surface processing of the same. The machine (10) comprises pressure means for obtaining a forced flow of the abrasive mix with respect to the manufactured product (18), in particular for obtaining a forced flow inside at least one cavity of the manufactured product (18).

Description

technical field

[0001] The present invention relates to a vibratory tumbling machine, in particular to a vibratory tumbling machine suitable for processing articles having at least one cavity or inner surface. Background technique

[0002] The vibratory tumbling process represents an economical solution for removing surface layers in the case of at least one surface, in particular obtained by electroerosion techniques.

[0003] The surface layer is in fact obtained by galvanic erosion, wherein said surface layer is generally hard and brittle, or in any case for example has microstructural and morphological features not permissible for the particular type of application.

[0004] An example of an article of this type comprises, inter alia, an object having at least one cavity, such as a rotor.

[0005] Treatment of the outer surface by vibratory tumbling is simple and economical since the article to be treated is immersed in the abrasive mixture.

[0006] The article is hel...

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