Universal dressing roller and cup-shaped grinding wheel dressing apparatus and method therefor

摘要

A tool 42 for dressing the inner and outer work surfaces 92, 94 of the cup-shaped grinding wheel 28, which is adapted for gear grinding, is disclosed in accordance with the method and apparatus for using the tool 42 . The working portion of the dressing tool 42 has a cylindrical shape having an outer surface 82 parallel to the axis of rotation and an upper surface 84 extending radially in the direction of the axis of rotation. The present apparatus is such that only the outer cylindrical surface 82 of the tool 42 is used to dress the inner working surface 92 of the grinding wheel 28 while only the top surface 84 of the tool 42 is used to dress the grinding wheel 28. [ The tool 42 with respect to the grinding wheel 28 is oriented so as to be used for dressing the outer working surface 94 of the grinding wheel 28.;There is provided a formula for calculating the optimum radius of the cylindrical surface of the tool 42 so as to provide substantially the same relative effective curvature between the tool 42 and each side of the grindstone 28, Which results in a similar grinding characteristic that is dressed into both the inner and outer machining surfaces 92, 94 of the grinding wheel 28.