公开(公告)号：US10052697B2

公开(公告)日：2018-08-21

申请号：US14820921

申请日：2015-08-07

申请人： HONDA MOTOR CO., LTD.

发明人： Daiki Sakai ,  Kenichi Imabuchi ,  Tetsuo Ishii ,  Katsumune Inaki ,  Shugo Arakawa ,  Kazuhide Ito ,  Hiroshi Kashiwagi ,  Masayuki Kaneko

IPC分类号： B23B39/20 ,  B23B41/12 ,  B23Q39/02 ,  B23C3/05 ,  B23Q39/00

CPC分类号： B23B39/20 ,  B23B41/12 ,  B23B2215/24 ,  B23C3/05 ,  B23Q39/028 ,  B23Q2039/006 ,  Y10T29/4927 ,  Y10T29/51 ,  Y10T408/03 ,  Y10T408/3809 ,  Y10T408/385 ,  Y10T408/5614

摘要： Two cylinder heads are disposed side by side. Upper side intake valve holes of one of the cylinder heads and upper side exhaust valve holes of the other of the cylinder heads are simultaneously machined by a multi-spindle head integrally including intake side tools and exhaust side tools. After moving the one of the cylinder heads upward by a pitch of the intake valves and moving the other of the cylinder heads upward by a pitch of the exhaust valves, remaining intake valve holes of the one of the cylinder heads and remaining exhaust valve holes of the other of the cylinder heads are simultaneously machined.