Vertical lathe has a wide application range , can process inside and outside the cylindrical cylinder, conical surface adn the rotary surface.In order to complete the various machining processes, vertical lathe must have the following movements: the rotary motion of the workpiece as the main movement; the straight movement of the tool as the feed movement.In the normal turning, the rotation of the workpiece and the movement of the tool are two independent movements. And in the processing of the thread, since the workpiece rotation and the tool movement must maintain a strict movement relationship between them, so they are combined into a complex movement - spiral trajectory movement, which is an internal transmission chain, used to be known as the thread feed drive chain.
Vertical lathe features: low degree automation, more auxiliary time, low productivity.Vertical lathe is suitable for single,small batch production and machine repair shop.