WHEEL HOLDER, METHOD FOR MANUFACTURING THE SAME, AND CUTTER WHEEL HOLDING MECHANISM USING THE SAME

摘要

The invention provides a wheel retaining tool having a high rotation precision and an elongated life and a manufacturing method thereof. The method for manufacturing the retaining tool includes steps of: processing the supporting parts 2 which are opposite leftward and rightward with a groove 1 as an interval, a cylindrical installing hole 5 formed by running through the left and right supporting parts 2 and a metallic retaining tool body 3 of a shield installing hole 6 in parallel with the cylindrical installing hole 5; installing a cylinder 4 made of the superhard material in the cylindrical installing hole 5 of the retaining tool body 3; enabling a wire 8a of a wire discharge processing machine 8 to pass through the shield installing hole 6 and moving from the shield installing hole 6 to the cylinder 4 and processing a pin insertion hole 9 at an axle center part of the cylinder 4 in a discharge processing way; and cutting off a middle part of the cylinder 4 in the groove 1 to process a gap 10 placing the knife flywheel A.