Patent ID: 8241191
Filing Date: 2012-08-14
Classification: B23Q,Y10T

Abstract:
1. A composite working lathe comprising: a bed; a workpiece spindle arranged on the bed; a machine body having a tool spindle disposed facing the workpiece spindle; a tool magazine unit storing a plurality of tools for providing the tools to the tool spindle via an automatic tool changer, wherein the tool magazine unit is disposed in front of the workpiece spindle such that the machine body and the tool magazine unit are located on opposite lateral sides of a rotation axis of the workpiece spindle; a first cover covering the machine body and a second cover covering a tool magazine device main body of the tool magazine unit; and a first door for allowing access to a machining portion of the composite working lathe, the first door being provided on the first cover covering the machine body, and a second door and a first window for allowing access to the tool magazine device main body, the second door and first window being provided on the second cover covering the tool magazine device main body; wherein the tool magazine unit comprises a chain disposed with a longitudinal axis thereof extending in the up-down direction, which chain moves in a plane orthogonal to the rotation axis of the workpiece spindle, the first window provided on the second cover covering the tool magazine device main body is located at a position facing a next tool to be supplied to the tool spindle from the tool magazine unit in a subsequent step, and the second door provided on the second cover covering the tool magazine device main body is provided with a second window for visual observation at a position facing a used tool returned to the tool magazine unit, a major plane of the second window being orthogonal to a major plane of the first window, the first window being located between the workpiece spindle and the second window.