| 摘要 |
While the path of a milling machine cutter with respect to a workpiece is controlled from prerecorded information by a conventional numerical control system, the rate of feed of the cutter along its path and the rate of rotation of the cutter are controlled by an adaptive system. The system forms a servo loop about the actual cutting operation by sensing the torque and vibration of the cutter. Maximum and minimum limits of torque, vibration, spindle speed and feed rate, as well as variables which may be derived from these factors, are preset into the system. The adaptive control acts to optimize spindle speed and feed rate without violating any of these restraints. |
