SMART SPINDLES: INSTRUMENTATION FOR PROCESS MONITORING

摘要

Grinding is a complex process, and even slight changes in certain variables can drastically change the wheel-workpiece interaction. Real-time measurement of grinding forces and the part size change allow insight into the nature of the process, improving every facet of grinding technology. The grinding algorithm discussed in this paper allows repeatable creation of ground parts of the highest quality by characterizing the system with a few simple measurements and then monitoring the normal grinding force during inprocess. This method reduces cost by improving yield and minimizing iterations to reach the desired part size. It works especially well for finish passes with low infeed rates. Lower-tolerance grinding applications can still get by with traditional iterative grinding methods. The point at which an operator should switch to the method described here is when the remaining material is less than the amount of machine compliance during operating conditions. As an added bonus, the instruments used to gather this data are nearly immune to the harsh environs of the industrial grinding sector.