| 摘要 |
A method of grinding crankpins (56) of a crankshaft (54) wherein the machine is under computer control and the grinding wheel (40) is advanced and retracted under computer control so as to follow the planetary motion of the crankpin as the crankshaft rotates. This maintains grinding contact between the wheel and the pin to allow the grinding of the latter. The crankshaft is mounted between centres and is rotated by a drive unit (52, 46), drive being transmitted to the end of the crankshaft via a connecting means (10) which is torsionally rigid in a plane perpendicular to the axis of rotation of the crankshaft but which is readily deformable in other planes to accommodate misalignment and so as to decouple the crankshaft (54) from the drive (52,46) other than to transmit pure rotation to the crankshaft. <IMAGE> |
