Turning device for static bar

A turning device with static bar comprising a motor, a driving shaft and a sleeve, which defines a seat for temporarily accommodating at least one portion of the bar being machined, a machining tool being coupled directly or indirectly on said sleeve, wherein:

• a secondary shaft is interposed between said driving shaft of said motor and said sleeve and is coupled to a screw of a first assembly constituted by a first recirculating-ball screw and a respective first lead screw, said lead screw being integral with said sleeve,
• said sleeve and said first assembly being coaxial and the axis of the driving shaft being parallel to and separate from a common axis of the sleeve and of the first assembly;
• the device further comprises an adjustment element coupled to a pusher shaft associated with said secondary shaft,
• said pusher shaft, through said secondary shaft, causing a translation of a screw and a rotation of said lead screw of the assembly, with consequent rotation of said sleeve and a movement in a radial direction of said tool.