Double-end machining coaxiality lathe

The invention relates to the field of machining, in particular to a double-end machining coaxiality lathe which comprises a spindle box, a tailstock is arranged at one end of the spindle box, a main clamping mechanism is arranged at the end, close to the tailstock, of the spindle box, and a moving mechanism is arranged between the spindle box and the tailstock. The double-end machining coaxiality lathe is provided with two chucks and two cutting mechanisms, and the machining efficiency is nearly doubled. An auxiliary clamping mechanism is driven by the moving mechanism to move, a workpiece with one machined end in the main clamping mechanism is clamped and moved to a machining area, the other end of the workpiece is then cut, the workpiece does not need to dismounted or clamped again, and the coaxiality of the two ends of the workpiece is guaranteed to the greatest extent. The workpiece is fed through a feeding mechanism, manual feeding is not needed, meanwhile, the consistency of the extending length of blan