SIMULTANEOUS MOVING BITS CHUCK

摘要

The invention concerns a chuck with simultaneously moving dies used to centre and screw conical cast semiproducts on different machine-tools such as the vertical lathe.According to the invention, the chuck with simultaneously moving dies consists of a base die mounted on a guiding die with screws and nuts.The base die is provided with a canal that embeds a sliding blade whose gear operates the gear of the guiding die. A cylindrical pin is fixed on the base die that can rotate together with some carriers around a screw and a socket. The supports hold some radial-axial screwing dies and some tablets, when in contact with the semiproduct. The movement is guided by some canals and some oblong holes through which pass the screws that support the screwing dies.