| Summary: | 碩士 === 中原大學 === 機械工程研究所 === 82 === The purpose of this study is to develop an On-line scanning
measurement technique for a free-form surface. The measuring
facilities used are the FANUC 15M machining center, the
RENISHAW scanning probe, three-axis AB phase drivers and six-
axis AB phase counters.The main task is divided into three
parts: (1) the hardware interface, (2) the measurement of the
free-form surface, and (3) the edge detector. On the hardware
interface the speed of measurement is is increased for directly
controlling the driver of the machining center, and the
difference of displacement between the machining center and the
scanning probe can be disregarded because of the six-axis
counters having been latched at same time. Especially, it can
also be used the other types of controllers, e.g., the
coordinate measuring machine(CMM). A continuously forecasting
path was used to measure the free-form surface; then, the
algorithm of a Cubic Spline was used to compensate for the
probe error after the measurement. A new method is proposed to
successfully solve the edge problem for measuring objects
through the scanning probe. This method is implemented via this
experiment.
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