TUBE BENDING DEVICE Russian patent published in 2009 - IPC B21D7/02 

FIELD: engineering industry.

SUBSTANCE: invention refers to engineering industry, and namely to tube bending devices. The latter consist of a body on the axis of which there fixed is a disk-shaped bending template on some part of circular periphery of which is located the operating surface for tube bending, which is radial in cross section. On bending template there installed with the possibility of being moved is the fixing element of the tube subject to bending. Device consists of a lever mounted so that it can be turned relative to the above axis of the body with freely rotating rolling roller located thereon with operating surface that is made in the cross section with radius equal to that of cross section of bending template operating surface. Bending template operating surface is provided with the second operating surface located along middle part thereof, which has cross section with radius that is smaller than that of cross section of the above first operating surface, and the second operating surface is made with the third operating surface having cross section with radius that is smaller than that of cross section of the above second operating surface. The Rolling roller is replaceable for each operating surface of bending template. The Lever is provided with holes used for installation of axis with the appropriate roller.

EFFECT: providing the possibility of bending tubes of various diameters.

7 dwg