Patent ID: 6080044
Filing Date: 2000-06-27
Classification: B24B

Abstract:
A machine for fining/polishing ophthalmic lenses comprising:a horizontal plate;a vertical plate rigidly fixed to said horizontal plate and extending upwardly from a midportion thereof;means mounted on said horizontal plate for orbiting a first tool about a first vertical axis on one side of said vertical plate;means mounted on said horizontal plate for orbiting a second tool about a second vertical axis on said one side of said vertical plate, said first and second vertical axes being in a plane parallel to said vertical plate;a swing frame pivotally mounted on another side of said vertical plate and having a horizontal shaft parallel to said vertical plate;a first shaft orthogonal to said horizontal shaft journalled for see-saw motion about said horizontal shaft, for rotational motion about a longitudinal axis of said first orthogonal shaft and for sliding motion along said horizontal shaft, said first shaft extending through an aperture in said vertical plate with said longitudinal axis intersecting said first vertical axis and said first shaft having means on an end thereof for holding a first lens in vertical alignment above the first tool;a second shaft orthogonal to said horizontal shaft journalled for see-saw motion about said horizontal shaft, for rotational motion about a longitudinal axis of said second orthogonal shaft and for sliding motion along said horizontal shaft, said second shaft extending through an aperture in said vertical plate with said longitudinal axis intersecting said second vertical axis and having means on an end thereof for holding a second lens in vertical alignment above the second tool;means for reciprocally moving said horizontal shaft in parallel relationship to said vertical plate; andmeans for simultaneously reciprocally moving said first and second orthogonal shafts in orthogonal relationship to said vertical plate,said horizontal shaft and orthogonal shafts moving means having a timing ratio therebetween such that said first and second lens holding means travel in horizontal figure eight patterns aligned with said first and second orthogonal shafts and said first and second lens holding means reciprocating in a direction parallel to said vertical plate.