摘要:
Two cylinder heads (3, 3) are disposed side by side. Upper side intake valve holes (34a, 34c, 34e, 34g) of one of the cylinder heads (3) and upper side exhaust valve holes (35a, 35c, 35e, 35g) of the other of the cylinder heads (3) are simultaneously machined by a multi-spindle head (24) integrally including intake side tools (26a to 26d) and exhaust side tools (28a to 28d). After moving the one of the cylinder heads (3) upward by a pitch P1 of the intake valves and moving the other of the cylinder heads (3) upward by a pitch P2 of the exhaust valves, remaining intake valve holes (34b, 34d, 34f, 34h) of the one of the cylinder heads (3) and remaining exhaust valve holes (35b, 35d, 35f, 35h) of the other of the cylinder heads (3) are simultaneously machined.
摘要:
Two cylinder heads (3, 3) are disposed side by side. Upper side intake valve holes (34a, 34c, 34e, 34g) of one of the cylinder heads (3) and upper side exhaust valve holes (35a, 35c, 35e, 35g) of the other of the cylinder heads (3) are simultaneously machined by a multi-spindle head (24) integrally including intake side tools (26a to 26d) and exhaust side tools (28a to 28d). After moving the one of the cylinder heads (3) upward by a pitch P1 of the intake valves and moving the other of the cylinder heads (3) upward by a pitch P2 of the exhaust valves, remaining intake valve holes (34b, 34d, 34f, 34h) of the one of the cylinder heads (3) and remaining exhaust valve holes (35b, 35d, 35f, 35h) of the other of the cylinder heads (3) are simultaneously machined.
摘要:
Ball screws are moved axially to move a spindle unit in directions X, Y to position a cutter mounted on the spindle unit. Support arm assemblies which support the spindle unit are also moved. Then, a slide table which supports the support arm assemblies is moved in a direction Z to cause the cutter to machine a workpiece.