| 摘要 |
PURPOSE:To improve the grinding efficiency while to reduce the abrasion of the grindstone and to protect the work from the stress, by performing the verticl shaft surface grinding while positioning the conductive belt and the grinding belt on a fixed circle around the axis of the rotary shaft. CONSTITUTION:A grinder body 1 will fix a planar fixed board 11 perpendicularly against the rotary shaft 12. An axial hole 13 opening to the fixed board 11 is penetrated through the center of the fixed shaft 12. A conductive grindstone 2 is fixed on the surface at the opposite side from the rotary shaft 12 of the fixed board 11 where the plane parallel with the fixed board 11 of the grindstone 2 is formed as a conductive belt 21. The grindstone 3 is also an arched belt which has at least two parallel faces and positioned into a circle around the rotary shaft 12. The current is supplied between a current collecting board 14 and an object to be grinded while at the same time the electrolyte is sprayed through an axial hole 13 to rotate the body 1 around the shaft 12, thereby the electrolytic working is performed between the conductive member 21 and said object while simultaneously the grinding work is performed. |
