主权项 |
1. A method for machining a workpiece with a programmable, numerically controlled machining system, the system including numerical control means adapted to operate under the direction of a predetermined machining program including a predetermined toolpath extending between an initial machining point and an end machining point and at least one rotating cutting tool powered by a computer numerically controlled machine, the method comprising the following steps:
(1) probing the workpiece with the rotating tool during relative motion therebetween, (2) monitoring a vibration signal from a vibration sensor mounted in the machining system, (3) recording a contact position of the workpiece when the monitored vibration signal indicates contact between the rotating tool and the workpiece, (4) comparing the recorded contact position to a predetermined initial machining point of the predetermined toolpath and calculating or retrieving a compensated toolpath based on the comparison wherein the predetermined toolpath extends between the initial machining point and the end machining point, and (5) machining the workpiece along the compensated toolpath. |