Compensation of Errors Detected by Process-Intermittent Gauging
Herbert T. Bandy, David E. Gilsinn
This paper describes a software design for implementing compensation of errors detected by process-intermittent gauging. This is the function of one control loop in the three-loop Quality In Automation (QIA) architecture that is under development at the National Institute of Standards and Technology (NIST). Process- intermittent error compensation is useful for improving accuracy of metal cutting processes on turning or machining centers. During machining processes, errors due to tool wear, tool deflection, part deflection, etc., are independent of the accuracy of the machine tool itself, and can, therefore, be measured using the machine tool. In process-intermittent inspection during a semi-finish cut a simple measurement device such as a touch-trigger probe may be used to gauge the part errors. The software design facilitates and integrates all pertinent procedures with systematic methods for producing nominal part data, analyzing inspection results, and specifying an adjusted tool path. The main emphasis in this paper is on a system of part feature data generation and management which streamlines the implementation of process-intermittent error compensation. A prototype of the system, tested on a turning center, proved that the employed methods are successful and efficient.
Proceedings of the 10th Annual Meeting of the American Society for Precision Engineering
and Gilsinn, D.
Compensation of Errors Detected by Process-Intermittent Gauging, Proceedings of the 10th Annual Meeting of the American Society for Precision Engineering, , USA
(Accessed February 27, 2024)