Patent ID: 6257111
Filing Date: 2001-07-10
Classification: B23B,Y10T

Abstract:
An automatically operated lathe, comprising:a lathe base;a spindle stock placed on said lathe base;a tool rest body placed on said lathe base;a turret supported on said tool rest body, said turret being capable of performing an indexing rotation about a rotation axis on said tool rest body and a linear movement relative to said tool rest body along said rotation axis in an indexed position;a pair of coupling elements provided between said tool rest body and said turret, said coupling elements being capable of being engaged with and disengaged from each other while accompanying said linear movement of said turret in said indexed position on said tool rest body;first drive means for generating a relative movement between said spindle stock and said tool rest body on said lathe base;second drive means for generating said indexing rotation and said linear movement between said tool rest body and said turret; andcontrol means capable of controlling said first and second drive means in such a manner as to move said spindle stock and said tool rest body relative to each other, synchronously with said linear movement of said turret, so as to prevent a relative movement between said turret and said spindle stock from being caused due to said linear movement.