Process for the control of the feed motion and touch-on motion of a grinding wheel
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United States of America Patent
Stats
-
Aug 7, 1990
Grant Date -
N/A
app pub date -
Aug 24, 1988
filing date -
Aug 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The process serves to control the step-by-step feed motion or touch-on motion of a grinding wheel (18) relative to a workpiece (10) or a measuring sensor. In so doing, a sequence of measured values of the power consumption of the rotary drive motor (24) of the grinding wheel (18) is recorded. If a specific sequence of measured current values remains under a certain limiting value, a further touch-on step is triggered. With the touch-on control system the touch-on motion is terminated, when the measured current values attain a specific limiting value. This touch-on control system forms the second phase of a combined touch-on control process in whose first phase a sparking current is generated and measured between the grinding tool (18) and the workpiece (10), which serves as a measurement of the distance between these.
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