Truing device and truing method for grinding wheel

Abstract

A truing apparatus for a grinding wheel is provided with a truing tool which is held so as to rotate, and the grinding wheel which is rotating is subjected to truing by the truing tool. The truing tool includes a peripheral surface truer having a truer surface formed on its rotating peripheral surface, and an end surface truer having a truer surface formed on its end surface in a direction of a rotation axis thereof. The rotation axis of the truing tool is arranged substantially perpendicularly to a rotation axis of the grinding wheel so that an end surface of the grinding wheel may be corrected with the peripheral surface truer, and a peripheral surface of the grinding wheel may be corrected with the end surface truer.

1 . A truing apparatus for a grinding wheel, comprising:
 a truing tool which is held so as to rotate and executes truing on the grinding wheel which is rotating, the truing tool including a peripheral surface truer having a truer surface formed on a rotating peripheral surface thereof, and an end surface truer having a truer surface formed on an end surface thereof in a direction of a rotation axis thereof,   wherein the rotation axis of the truing tool is arranged substantially perpendicularly to a rotation axis of the grinding wheel so that an end surface of the grinding wheel is subjected to truing with the peripheral surface truer, and a peripheral surface of the grinding wheel is subjected to truing with the end surface truer.   
   
   
       2 . The truing apparatus wheel according to  claim 1 , wherein an inner diameter of the end surface truer of the truing tool is larger than a grinding width of the grinding wheel. 
   
   
       3 . The truing apparatus according to  claim 1 , wherein the end surface truer of the truing tool includes a columnar diamond. 
   
   
       4 . A truing method of truing a grinding wheel including an end surface and a peripheral surface, the method comprising:
 providing a truing tool, which includes a peripheral surface truer having a truer surface formed on a rotating peripheral surface thereof, and an end surface truer having a truer surface formed on an end surface in a direction of the rotation axis thereof;   arranging the truing tool so that a rotation axis of the truing tool are substantially perpendicular to a rotation axis of the grinding wheel;   executing truing on the end surface of the grinding wheel with the peripheral surface truer of the truing tool; and   executing truing on a peripheral surface of the grinding wheel with the end surface truer.   
   
   
       5 . The truing method according to  claim 4 , wherein the grinding wheel is provided with a first chamfered part between one of the opposite end surfaces and the peripheral surface at one side in the direction of the rotation axis of the grinding wheel, and a second chamfered part between the other opposite end surface and the peripheral surface at the other side in the direction of the rotation axis of the grinding wheel,
 the first chamfered part is subjected to truing with a part of the end surface truer at the other side while the truing tool is rotated in a first direction, and the second chamfered part is subjected to truing with a part of the end surface truer at the one side while the truing tool is rotated in a second direction opposite to the first direction.   
   
   
       6 . The truing apparatus according to  claim 2 , wherein the end surface truer of the truing tool includes a columnar diamond.