The invention provides large linkage
digital control rotation equipment for a bolt drawing
machine. The large linkage
digital control rotation equipment comprises a body, wherein a main shaft and a sensor are arranged on the body, a worm wheel is arranged on the main shaft and meshed with a worm rod, a working platform is arranged at the uppermost end of the body, the worm rod is connected with a
servo motor through a coupler, and is a dual-screw
pitch gradually-thickening worm rod, a worm wheel hub is fixedly arranged on the worm wheel and fixedly connected with the working platform, a coder is arranged on the working platform, a guide rail is arranged at the lower end of the working platform, a wear plate is arranged between the guide rail and the body, a plurality of pairs of
brake blocks are uniformly arranged below the working platform and are fixedly connected with the working platform, a
piston rod is arranged at the upper ends of the
brake blocks and penetrates through the
brake blocks to be connected with a
piston in a
hydraulic cylinder, a disc spring is arranged between the
piston rod and the brake blocks, and a brake column is arranged between the brake blocks and the piston. The rotation equipment provided by the invention is capable of meeting
processing requirements on bolt drawing machines for a
nuclear power plant and other various large-size and super-heavy workpieces.