Lapping and polishing head for stone slabs

摘要

The head comprises a rotating bowl-shaped casing (1) for driving by a central shaft (9) and closed by a flanged cover (3). Shafts (33) intended to operate in an oscillating manner lapping tools (41) are provided in rotational seats (1C, 1D) of said bowl-shaped casing (1). For operation of said shafts (33) the head comprises an endless screw (45A, 45B) coaxial with said central shaft (9), helical gears (57) supported by said bowl (1) and co-operating with said endless screw (45A, 45B), an articulated drive between each helical gear (57) and one of said shafts (33), and means for transmission from said oscillating shaft to other adjacent oscillating shafts (33). <IMAGE>