Tube-bending machine

Abstract

The invention belongs in the field of machines for bending tubes and refers in particular to a machine ( 1 ) comprising a supporting base ( 2 ), a positioning device ( 3 ) for the tube ( 7 ) to be bent and a bending device ( 4 ) for said tube ( 7 ) characterised by having devices capable of rotating through up to 360° in order to bend said tube ( 7 ) in various bending planes, including starting alternatively from either end of said tube or, as necessary, at an intermediate part.

1 . A tube-bending machine, comprising:
 a supporting base,   a positioning device for the tube to be bent,   at least one device for bending the tube to be bent,   means for making the positioning device and the bending device for bending said tube take up mutual positions for bending said tube,
 wherein said positioning device includes a turret and a positioning arm equipped with means suitable for rotating said positioning arm through 360° around the central axis (Y) of the tube to be bent, in order to position said tube for the purpose of being bent by means of said bending device in various bending planes. 
   
   
   
       2 . A tube-bending machine according to  claim 1  wherein said positioning arm is equipped with at least one locking device for the tube to be bent equipped with means suitable for rotating said locking device through up to 360° around a fulcrum (F) in order to rotate said tube for the purpose of bending either end of the tube alternatively by means of said bending device. 
   
   
       3 . A tube-bending machine according to  claim 1  wherein said positioning arm is equipped with two locking devices for the tube to be bent and means suitable for rotating said devices through up to 360° respectively around a fulcrum (F) and a fulcrum (G) in order to rotate said tube for the purpose of bending either end of tube alternatively by means of said bending device. 
   
   
       4 . A tube-bending machine according to  claim 1  that further comprises at least one second bending device. 
   
   
       5 . A tube-bending machine according to  claim 2  that further comprises at least one second bending device. 
   
   
       6 . A tube-bending machine according to  claim 3  that further comprises at least one second bending device.