METHOD OF ADJUSTING GEOMETRIC PARAMETERS OF THIN-WALL MULTI-FITTING PRODUCT AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC B21C37/15 

FIELD: physics.

SUBSTANCE: edges and the angles of the product are exposed simultaneously from the outside and from the inside. From inside, the angles of the product are exposed by the rollers 1 having a profile of the working surface corresponding to the profile of the product angle 4, and from the outside the edges of the product 4 are exposed by the rollers 5 of a barrel shape having a working surface profile in the form of a circle arc. The device comprises the first set of rollers 1 for influencing the inner surface of the product 4 and the second set of rollers 5 for influencing the outer surface of the product 4. In each set, the axes of the rollers 1, 5 are rigidly connected to each other, and the geometric rotation axes of the rollers 1, 5 lie in the same plane and intersect with each other to form a polygon. The working surface profile of each roller 1 of the first set is an angle with a rounded vertex equal to the angle of the polyhedral product 4. The working surface profile of each roller 5 of the second set is an arc of a circle, and the roller 5 itself is barrel-shaped.

EFFECT: increasing the accuracy of the product shape.

3 cl, 5 dwg