Patent ID: 8641589
Filing Date: 2014-02-04
Classification: B23B,B23Q,Y10T

Abstract:
1. An automatic tool changer configured to be installed in a precision roll turning lathe including a headstock and a tail stock, both mounted on a bed, for rotatably supporting a roll, and a tool post movably mounted for movement parallel to the roll on the bed, said automatic tool changer comprising: a change device including: a tool holder stocker comprising a plurality of circumferentially-arranged stages disposed at a predetermined distance from the pivot axis, each stage detachably holding a tool holder; a holder base, mounted to the tool post, configured for detachably holding the tool holder to the holder base; and a clamp shaft operating device including: wherein the holder base includes a cam mechanism configured for converting the rotation of the clamp shaft into clamping motions that fix the tool holder to the holder base and unfix the tool holder from the holder base.