公开(公告)号：US6146253A

公开(公告)日：2000-11-14

申请号：US844469

申请日：1997-04-18

Applicant: Faydor L. Litvin ,  Yih-Jen Chen ,  Gregory F. Heath ,  Vijay J. Sheth ,  Ningxin Chen

Inventor： Faydor L. Litvin ,  Yih-Jen Chen ,  Gregory F. Heath ,  Vijay J. Sheth ,  Ningxin Chen

IPC: B23F23/12 ,  B24B53/075 ,  B24B1/00

CPC classification number: B23F15/06 ,  B23F23/1225 ,  B24B53/075

Abstract: A precision grinding apparatus includes a grinding worm for precision grinding a case-hardened face gear. A shaper is first placed into contact with a face gear, to thereby shape a surface of the face gear into a plurality of face gear teeth. The shaper is then removed, and the face gear is case hardened. The grinding worm is disposed in a normal orientation to the case-hardened face gear and includes a spiral tooth extending along a perimeter of the grinding worm. The spiral tooth of the grinding worm is adapted to contact and precision grind the case-hardened gear. A dressing tool includes a protrusion for contacting the spiral tooth of the grinding worm, as the spiral tooth contacts and precision grinds the case-hardened face gear. The dressing tool thus maintains the shape of the grinding worm to within a desired tolerance range.

Abstract translation: 精密磨削装置包括用于精加工表面硬化面齿轮的研磨蜗杆。 首先将成形器与面齿轮接触，从而将面齿轮的表面成形为多个齿轮齿。 然后取下整形器，并且表面齿轮表面硬化。 研磨蜗杆以正常的方向设置在表面硬化面齿轮上，并且包括沿研磨蜗杆的周边延伸的螺旋齿。 研磨蜗杆的螺旋齿适用于接触和精密磨削硬化齿轮。 修整工具包括用于接触研磨蜗杆的螺旋齿的突起，因为螺旋齿接触并精密研磨表面硬化面齿轮。 因此，修整工具将研磨蜗杆的形状保持在所需的公差范围内。