UPPER MAIN SPINDLE TYPE VERTICAL LATHE DEVICE AND WORK MATERIAL HOLDING METHOD TO UPPER MAIN SPINDLE TYPE LATHE DEVICE

摘要

PROBLEM TO BE SOLVED: To minimize loss of time of a worker and to improve safety. ;SOLUTION: This upper main spindle type vertical lathe device 100 is constituted of a rotatable main spindle 12, a holding jig 15 fixed on the main spindle, a drive carriet 151 fixed on the holding jig, an energizing means arranged on the drive carriet and a pressurizing member 17 to be energized to the outside in the axial vertical direction by the energizing means and constitutes its characteristic feature that the pressurizing member is pressurized by an inner surface of a working material P to be worked and the working material is held.;COPYRIGHT: (C)2003,JPO