Alternative Designs of a Real-Time Error Corrector for Machine-Tools with 'Encoder' Position Feedback.

摘要

As a part of Quality in Automation project, the author has implemented fast part-probing and real-time error compensation on a computer-numerical-control (CNC) machine tool using the existing machine-tool controller. He has inserted a black box called the Real-Time Error Corrector (RTEC) between the 'encoder' position feedback elements of the axes of the machine tool and the machine-tool controller. Further details of the 'Original RTEC' will be given and three alternative designs proposed. Some implementations and application considerations are discussed.