IMPROVED STRUCTURE OF A CENTERING UNIT WHICH ENABLES A USER TO MINUTELY CONTROL THE LOCATION OF CARRYING MATERIALS

摘要

PURPOSE: An improved structure of a centering unit is provided to return an origin of a top plate when load is loaded.;CONSTITUTION: An improved structure of a centering unit comprises a mounting flange(10), a ball transfer(30), a lock cylinder(20), a lock piston(40), lower and upper ball retainer props(55,50), a ball cage(60), and a top plate(80). The mounting flange is fixed to a floor. The mounting flange is fixed through multiple fasteners(12) with the lock cylinder. The cylinder is fixed on the top of the mounting flange. The ball transfer is assembled inside the lock cylinder to be ascended and descended. The lock piston is installed inside the lock cylinder to be ascended and descended. The ball cage lower part support is installed between the lock cylinder and lock piston. The ball cage upper pedestal is installed in the upper end of the ball cage. The holes are formed in each center of the lower and upper ball retainer props. The ball cage is installed in the lower and upper ball retainer props. The top plate is fixed to the lower and upper ball retainer props.;COPYRIGHT KIPO 2012