초록 ▼

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 har

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.

대표청구항 ▼

[ What is claimed is:] [1.] A precision grinding apparatus, comprising:a case-hardened face gear;a grinding worm disposed in a normal orientation to the case-hardened face gear, the grinding worm having a spiral tooth extending circumferentially along a perimeter of the grinding worm, the spiral too

[ What is claimed is:] [1.] A precision grinding apparatus, comprising:a case-hardened face gear;a grinding worm disposed in a normal orientation to the case-hardened face gear, the grinding worm having a spiral tooth extending circumferentially along a perimeter of the grinding worm, the spiral tooth contacting and precision grinding the case-hardened face gear; anda dressing tool for dressing the grinding worm while the grinding worm is grinding the case-hardened face gear, the dressing tool having a protrusion for contacting the spiral tooth of the grinding worm.