Orbital machine for bending tubes

An orbital machine for bending tubes (2), characterized in that the machine comprises a fixed base frame (3) on which a guiding support (8) is displaced in translation cooperating with a fee-doff arm (13) driven in rotation around the horizontal axis and which forms an integral unit with a bending head (4) comprising two tightening semi-rollers (23, 24) that are driven first according to a direction opposite in direction from the axis of the tube (2) in a plane perpendicular to that of the bending plane XX′of the tube (2), secondly in rotation to achieve at least one bend on the tube (2), said base frame (3) comprising a loading device (5) allowing the tube to be bent (2) to be held first in a horizontal position oriented in the direction of the bending head (4) and secondly in a position that is fixed in rotation and in translation while the different bendings are achieved, in that each tightening semi-roller (23, 24) of the tightening support (21) presents an indentation (25, 26) for receiving the tube to be bent (2), and that the tightening semi-rollers (23, 24) are guided respectively in translation in slide bars (27, 28) provided in the tightening support (21) in order to be able to either shorten or extend the longitudinal axis of the tube (2).

An orbital machine for bending tubes (2), characterized in that the machine comprises a fixed base frame (3) on which a guiding support (8) is displaced in translation cooperating with a feed-off arm (13) driven in rotation around the horizontal axis and which forms an integral unit with a bending head (4) comprising two tightening semi-rollers (23, 24) that are driven first according to a direction opposite in direction from the axis of the tube (2) in a plane perpendicular to that of the bending plane XX′of the tube (2), secondly in rotation to achieve at least one bend on the tube (2), said base frame (3) comprising a loading device (5) allowing the tube to be bent (2) to be held first in a horizontal position oriented in the direction of the bending head (4) and secondly in a position that is fixed in rotation and in translation while the different bendings are achieved, characterized in that the loading device (5) comprises first a storage channel (36) that is fixed on a vertical extension arm (20) forming an integral unit with the base frame (3) in such a way as to present the tubes (2) to be bent in a vertical position and secondly a gripping device (37) above the channel (36) that allows the tubes (2) in the channel (36) to be taken in order to present the tubes in a horizontal position oriented in the direction of the bending head (4).