With a support plant provided ballscrew

With a support work provided the ball screw, a platform, two mounted on the platform bearing plates, a joint-like connected to the two bearing plates screw, two to the platform are arranged in parallel guide rails, one mounted on the platform first guide rail and a second guide rail, a two on the having guide rails mounted slide and a socket unit with a guide rail and a guide unit, wherein the socket unit receives the screw inserted through and entrains the carriage for driving. In this embodied ball screw not only the possible delay of the screw is prevented but drives the female unit also stable because the female unit has a free running distance in respect to the carriage and thus does not drive the carriage to move within this route, and thus dampens vibration of the co-rotating slide so that the ball screw having a longer life. The ball screw in this design is constructed beyond without pulling cable and role and has such advantages as a simplified design, improved reliability and low maintenance costs on.