Grindstone contact sensing method and its device, and honing method and honing machine
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United States of America Patent
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-
Apr 24, 2012
Grant Date -
Nov 26, 2009
app pub date -
May 3, 2009
filing date -
May 22, 2008
priority date (Note) -
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Abstract
A grindstone contact sensing technology capable of sensing the contact position of the honing grindstone with the inner circumference of the work at high precision. A servo motor for driving the spindle rotation, and a servo motor for driving the depth of cut are provided and used respectively as spindle rotation drive source for rotating and driving the rotary spindle having the honing tool and depth-of-cut drive source for moving the honing grindstone at a specified depth of cut, and the contact position of the honing grindstone with the inner circumference of the work is sensed from various electrical information (rotating speed, torque, current value, stagnant pulses, etc.) obtained from the operations of both the servo motors.
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