Patent ID: 7093475
Filing Date: 2006-08-22
Classification: B21D

Abstract:
1. 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, said guiding support is comprised of a vertical column ( 9 ) comprising first at its base a horizontal plate ( 10 ) equipped with guiding means ( 11 ) cooperating with rails ( 7 ) forming an integral unit with the fixed base frame ( 3 ) and secondly opposite from the plate ( 10 ) a turret ( 12 ) driven in rotation and forming an integral unit with a U-shaped feed-off arm ( 13 ), said feed-off arm ( 13 ) driven in rotation around a horizontal axis and which forms an integral unit with a bending head ( 4 ) comprising one of a tightening roller associated with a gripping jaw and 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 a 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.