SU912334A1 - Cone shell bending roll-type machine - Google Patents

Description

(54) ROLL FOR BENDING CONICAL SHUTTERS

one

The invention relates to the processing of metals by pressure, in particular to the production of bent products from sheet.

The closest in technical essence and the achieved result to the proposed is a machine for bending conical shells, containing an upper work roll with a leading ropik at one end and freely rotating rollers on the rest of it, a lower roller with freely rotating rollers located under the upper leading roller the rolls and the leading rollers located between the freely rotating rollers, while the diameters of all the rollers are made smoothly decreasing in the direction of the freely E) growing rollers of the upper roll.

The disadvantage of this machine is the complexity of the construction of the rolling device, determined by the presence of two work rolls, two bending rolls, as well as a significant number of rollers of different diameters, differently set

on the shafts and in a certain polo, GENIENT relative to each other. The quality of bending of conical shells on cylindrical rollers is low and further processing is required.

The purpose of the invention is to simplify the design and improve the quality of bending.

To this end, in a roller bending machine for bending conical shells, containing

10 driven BanoKj in which i the driving rollers and bending rolls with freely rotating rollers are installed, the driving roller is equipped with spacer sleeves, the driving rollers are made

15 koshmicheskie, installed at the ends and in the middle of the drive roll in such a way that the cones forming them are located in one Plane, and the distance bushings are located between

Claims (2)

20 of them, each bending roll is installed at a predetermined angle to the drive, while the frame is equipped with a crO Shintein and interacting with them screw clamps, hinged svieannymi with bending vapkami. Lead wap is provided with L-shaped grips for the workpiece. FIG. 1 shows a diagram of a vapko machine; FIG. 2 is a view A of FIG. 2; FIG. 3 is a section BB in FIG. 1. A roller bending machine for bending shells consists of a bed 1 on which an electromechanical actuator 2 is installed, comprising an electric motor, 3, a gearbox 4 and a pair of cylindrical gears 5 and 6, a drive roller 7 on which a gear wheel b is installed, the driving bevel rollers 8, provided with l-shaped claws 9, and between the rollers 8 there are installed spacers 10, which provide such a distance between adjacent inlets, in which the cones of the leading cone rollers 8 are located in the same plane. The bed 1 above the drive roller 7 is provided with a grit 11 and on the side of the roll 7 a grit 12. The brackets have threaded holes that include screws of the clamps 13 and 14. The bending rolls 15 and 16 with freely rotating rollers are mounted on the ends of the screws. 17. The machine works as follows. A blank from a metal sheet in the form of a segment is installed into G-o different grippers 9. At the same time, it is supported on the drive rollers 8. The screws of the clamps 13 the workpiece is pressed against the rollers 8. The screws of the clamps 14 of the roll roll 16 with rollers 17 about starts at an amount sufficient dp pre-bending the workpiece. The drive 2 is turned on. After turning the drive rollers 8 one turn, the machine is stopped, the bending roll with rollers 17 is retracted and the finished shell is removed. The proposed design of a roller lathe for bending the conical shells 44 differs from that known in that it provides high productivity. The bending operation is carried out in one turn of the drive roller, the parts are of the correct geometry, they do not require further development, which means they are of high quality. The construction is much simpler than the known one, since it has only one drive roller and, with the same dimensions, as in the well-known one, makes it possible to produce large-sized shells. The formula of the shade is 1. A roller machine for bending the conical shells, containing a drive roller, on which drive rollers and idler rollers with freely rotating rollers are mounted, is designed so that, in order to simplify the design and improve the quality of bending, the drive roller provided “n distance sleeves, leading rollers are made conical, mounted on the ends and in the middle of the drive roll in such a way that their cones are located in the same plane, and the distance sleeves are located between them, each intramural roll set at a predetermined angle to the drive, the frame is provided with lugs and cooperating with two screw clamps, scharnirno coupled with bending rolls. 2. The machine according to claim 1, about the t and the fact that the drive roller is provided with l-shaped grips for the workpiece. Sources of information taken into account during the examination 1. USSR author's certificate No. 531599. cl. B 21 D 5/14, 01.11.74 (prototype).