Patent number: 5193422
Abstract: A multispindle automatic lathe has a main shaft drive motor (M3) for driving spindles (13) via a driving power transmission system (2a, 12, 14, 15, 20, 21, 22, 27, 28, 31), a feed and index driving motor (M2) operating a low and high speeds in timed sequence for feeding a plurality of cross tool slides (16) via a feed driving system (3a, 61, 62, 64, 65, 67, 68, 69, 70) and indexing the spindle carrier (11) via an index driving system (62, 71, 72, 73, 74, 75, 76, 77), and a feed and index drive motor (M1) for feeding a plurality of end tool slides (18) via a feed driving system (4a, 18a, 78, 79).
Type:
Grant
Filed:
October 31, 1991
Date of Patent:
March 16, 1993
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha
Inventors:
Yuuichi Mukai, Yoshitoshi Ito, Takayuki Nagato, Tamotsu Tonomura