Method for grinding glass plates and the like through numerical control and beveling machine therefor

A beveling machine for glass plates comprising a table having a plurality of fixing stands for fixing the glass plates, a head stand carrying a plurality of working heads each having a rotatably mounted working wheel respectively, means for moving the head stand in one direction in a horizontal plane so as to move a plurality of working wheels in one direction in the horizontal plane, means for moving the table or the head stand in the direction perpendicular to the above one direction in the horizontal plane so as to cause a plurality of working wheels in a relative movement to the direction perpendicular to the above one direction in the horizontal plane, a plurality of means mounted on the above head stand for spinning the respective working wheels, said wheels being inclined from a vertical axis in a specified number of working heads exclusing at least one of the above working heads around said vertical axis, and a numerical control means for controlling the movements in the biaxial directions in the horizontal plane of the working wheels and the spinning movement around the vertical axis of the inclined working wheels, each means for spinning working wheels carried by said head stand being provided with a rod rotatably mounted by a bearing device, said rod being provided with said working head, the portion of each of the rods projecting from the bearing devices being so connected to each other by transmission means and also to driving means so each rod receives the same movement, the spinning center of each of the inclined working wheels being situated so as to go through the working point and also to align with the center of said rod.

A beveling machine for glass plates comprising a table having a plurality of fixing stands for fixing the glass plates, a head stand carrying a plurality of working heads each having a respective rotatably mounted working wheel, means for moving the head stand in one direction in a horizontal plane so as to move a plurality of working wheels in one direction in the horizontal plane, means for moving the table or the head stand in the direction perpendicular to the above one direction in the horizontal plane so as to cause a plurality of working wheels to be moved in a direction perpendicular to said one direction in the horizontal plane, a plurality or means mounted on said head stand for spinning around a respective vertical axis all working wheels provided on each of the above working heads, means for shifting the rotating center of the working wheel with respect to the spinning center, a numerical control device for controlling the movements in the biaxial directions in the horizontal plane of the working wheels and the spinning movement around the vertical axis, and a feeding means for automatically conveying the glass plate to a succeeding fixing stand, said each means for spinning working wheels carried by said head stand being provided with a rod rotatably mounted by a bearing device, said rod being provided with said working head, the portion of each of the rods being so connected to each other by transmission means and also to driving means that each rod receives the same movement, the spinning center of each of said working wheel being situated so as to go through a working point and also to align with the center of said rod, whereby after finishing one grinding process on one fixing stand, the glass plate is conveyed to the succeeding fixing stand for a next grinding process.