Workpiece machining apparatus with a plurality of workpiece support devices

摘要

A multitasking workpiece machining apparatus 20 includes a pair of workpiece support devices 40 and 42 supporting an elongated workpiece, first and second headstocks 24 and 30 at positions outside of the workpiece support devices 40 and 42. The second headstock 30 is capable of moving closer to and apart from the first headstock 24. Each workpiece support device 40, 42 respectively includes a travel drive device 50, 60 traveling between the first and second headstocks 24 and 30. A numerical control unit 100 controls travel of each workpiece support device 40, 42 by synchronously controlling each travel drive device 50, 60.