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1. (WO2017033510) MACHINE TOOL

Pub. No.:    WO/2017/033510    International Application No.:    PCT/JP2016/064817
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri May 20 01:59:59 CEST 2016
IPC: B23B 15/00
B23Q 7/04
G05B 19/18
Applicants: DMG MORI CO., LTD.
Inventors: KURAMOTO, Tsutomu
倉本 勉
中東 恒人
Provided is a machine tool capable of executing attachment and detachment of a workpiece on the main shaft using a loading mechanism unit in a shorter time. The machine tool is provided with: a machining mechanism unit 10 equipped with a main shaft 16, a cutting tool holder 12, a first axial-feeding mechanism 14 for advancing and retracting the main shaft 16 in a first axial direction parallel to the central axis, and a second axial-feeding mechanism 18 for relatively moving the main shaft 16 and the cutting tool holder 12 in a second axial direction that is perpendicular to the first axis; a loading mechanism unit 30, which is a mechanism for transferring a workpiece to and from the main shaft 16 at a transfer position and is equipped with holders 33, 34 for holding the workpiece, and a third axial-feeding mechanism 35 that is for moving the holders 33, 34 in a third axial direction that is orthogonal to the first axis and is for positioning same in the transfer position; and a numerical control device 50. The numerical control device 50 executes the action of moving the main shaft 16 towards the transfer position using the first axial-feeding mechanism 14 and the action of positioning the holders 33, 34 at the transfer position using the third axial-feeding mechanism 35 so that at least portions thereof overlap.