An automatic device for replacing grinding wheels in machines for profiling and polishing works obtained from slabs of marble, granite, stone, glass, stoneware, cement and the like

摘要

In a machine for profiling and polishing works of marble and the like, it is possible to automatically replace one grinding wheel with another one in any working step whatsoever. On the same carriage (C) bearing the spindle, is fitted a device (R) consisting of a turning plate (25) provided with recesses, having wedge-shaped internal edges (29a), onto which are carried the replacement grinding wheels fixed to a coupling head (30). The turning plate (25) is made to approach the spindle (13), it withdraws the grinding wheel, complete with its attachment, to be replaced, once the spindle has been detached from the attachment, it turns by one or more steps to present a new grinding wheel with its corresponding attachment, and it is withdrawn to a waiting position until the next replacement.