Bryant Grinder Corporation

Terry W Priestley

Lawrence I Millay

Stephen S Buckingham

The present invention relates to a system for measuring a grinding force between a workpiece and a grinding wheel during the operation of a computer controlled grinding machine. A force transducer is mounted on a drive screw assembly between a moveable slide and a motor used to control movement of the slide. The force transducer generates a control signal that is conditioned and received by a digital signal processor, which instructs a machine controller to perform grinding operations in response to the measured force.

Grinding force measurement system for computer controlled grinding

The method involves moving a reference or dummy tool of known size on a toolhead slide from a known position to actuate a limit switch, moving a working tool of unknown size on the same toolhead slide from the same known position to again actuate the limit switch and comparing the toolhead slide position for actuating the limit switch for the working tool with the stored toolhead slide position for the reference tool to determine size of the former.

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Springfield, VT, United States of America

Terry W Priestley