| 摘要 |
In a crankshaft, the narrow flat shoulders (9) that are located next to the bearing pin (4) at the adjacent cheeks (3) of the crankshaft are machined by turning by means of a rotary tool (14). In the process, the crankshaft that is clamped in a fixed manner rotates about a rotation and clamping axis (22) in which also the centric longitudinal axis formed by the centric bearing pins (2) of the crank shaft is located. As a result, the bearing pins (4) rotate with the geometric axis (6) thereof on a circular path about the rotation and clamping axis (22). The rotary tool (14) tracks the moving bearing pins (4) with regard to the vertical and lateral movement thereof in two movement directions (32, 36) that are perpendicular to each other. As a result, the rotary tool (14) is in consistent lateral engagement with the flat shoulder (9) of the bearing pin (4). |
