SU1207730A1 - Apparatus for centrifugal working of cylindrical articles - Google Patents

Description

The invention relates to the machining of metals with a free abrasive and can be used in the engineering industry.

The purpose of the invention is to simplify the design due to the fact that the outer wall of the working chamber is formed by a set of mandrels mounted around the circumference with respect to the bottom with a gap between them.

FIG. 1 schematically shows the proposed device, a longitudinal section; in fig. 2 - section aa in fig. 1.

The device consists of a platform 1 with vertical mandrels rotating from the driver 2, mounted circumferentially to the bottom 4 with a gap between them and forming the inner contour of the working chamber wall with their outer cylindrical part. The gap between the mandrels is determined by the size of the working bodies of the abrasive medium. The diameter of the cylindrical part of the mandrels is equal to the outer diameter of the workpiece 5, the height of the cylindrical part of the mandrels is not less than 0.1 of the diameter of the rotating bottom (this ratio is due to the necessary amount of abrasive medium for normal operation). The bottom part 6 of the chamber between the mandrels 3 and the rotating bottom 4 corresponds in shape to the internal contour of the set of mandrels. Rotating from the drive 7 bottom 4 together with the bottom

Part 6 of the camera has the ability to move vertically with the help of the drive 8.

The device works as follows. in a way.

The workpieces 5 are fastened to the mandrels 3. The rotational drive drive 2, the rotation drive 7, and the vertical bottom movement drive 8 are turned on in series.

The abrasive medium (for example, trihedral prisms), due to centrifugal forces, is thrown toward the rotating 5 with the mandrels 3 of the product m 5 and creates pressure on them, rises upwards until the pressure drops to the bottom under the force of gravity. With an increase in the angular velocity of rotation of the bottom, centrifugal forces increase,

processing intensity increases. The direction of rotation of the mandrels may coincide with the direction of rotation of the bottom (more rigid mode) or be opposite (softer mode).

The amount of vertical movement of the bottom part relative to the parts is adjusted depending on the length of the parts.

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five

Compiled by N.Finn. Editor L.Lisina Tehred.Parotsay. Corrector V.But ha

Order 131/17 Circulation 739 Subscription VNIIPI State; USSR Committee;

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PLP Patent, Uzhgorod, Proektna St., 4

Claims (1)

DEVICE FOR CENTRIFUGAL PROCESSING OF CYLINDRICAL PRODUCTS, mounted on vertical rotating mandrels, with an abrasive medium driven by a rotating bottom of the working chamber, moreover, in order to simplify the design, the walls of the working chamber are formed by cylindrical mandrels, installed around the bottom circumference with a gap, while the device is additionally equipped with a fixed bottom, the shape of which in plan corresponds to the contour of the sets of mandrels, and the rotating bottom and bottom are installed with the possibility of axial movement. Figure 1 SU. „, 1207730