| 摘要 |
<p>A crankshaft is mounted in a fixture (30) which rotates the crankshaft about its longitudinal axis and which tilts the crankshaft about a horizontal axis to allow machining of holes such as oil holes at various rotational positions and at various tilt angles to the longitudinal axis. Preferably, a cutting tool (36) moves along a horizontal plunging axis Z to machine holes on or offset from the longitudinal axis. Preferably, a pair of crankshafts are mounted side-by-side in the fixture to machine two crankshafts simultaneously. The fixture is mounted for tilting by trunnions (124). The pair of crankshafts are spun about the longitudinal axes by a motor carried on the tiltable fixture. An automatic tool changer and loading apparatus (34) store cutting tools and associated guide bushings for the cutting tools.</p> |
