TUBE BENDING MACHINE Russian patent published in 1997 - IPC

FIELD: plastic metal working, namely equipment for tube bending. SUBSTANCE: tube bending machine includes mounted in frame: stationary rest with driven carriage carrying pressure shoe, drive shaft supporting bending template and rotary rest carrying driven carriage with clamping shoe. Drive of each carriage is in the form of double- lever link jointly connected with body of respective rest of rocking power cylinder. Rod of said cylinder is joined with axle of articulation joint of one ends of levers. Second end of one of said levers is jointly connected with body of respective rest and second end of other of said levers is jointly connected with carriage. Rod of power cylinder is joined with common axle of levers through slit of one of said levers. Said slit is opened to opening of lever body for said common axle of levers. Shape and dimension of said slit provide rotation of lever at operation of drive units. EFFECT: improved design. 6 dwg