FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used for large-diameter tube bending in different directions. Tube is directed in this device through induction circular heater. Note here that said tube is retained by bending lock. Device comprises at least one bending lever arranged to turn about vertical swivel pin and engaged with bending lock. Note here that bending lock has the device to transfer force between tube receiving device and bending lever engaged therewith to adjust the range between maximum and minimum bending radii. Besides, this device has at least one extra bending lock with extra bending lever, tube receiving appliance and device to transfer bending force from receiving device to extra bending lever. Note here that direction of extra bending lever turn is opposite that of the first bending lever. Each of two bending levers can displace in parallel and perpendicular to tube feed direction.
EFFECT: enhanced performances.
10 cl
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