| 摘要 |
PURPOSE: A ball screw supporting device for long distance movement is provided to easily prevent a ball screw from being drooped or shaken, thereby easily reducing measurement errors of a moving distance. CONSTITUTION: A ball screw supporting device for long distance movement comprises a support body(11), a roller mounting member(12), an elastic member(13), a cam roller support(14), a cam roller, cam members(17), and a nut body(3). The support roller is installed in a frame(1a) being spaced under a ball screw(2). The roller mounting member is installed in the upper part of the support body to be vertically movable. The elastic member is installed between the roller mounting member and the support body. The support member is installed on the top of the roller mounting member thereby supporting the lower part of the ball screw by using an elastic force of the elastic member. The cam roller support is installed on each upper side of the roller mounting member. The cam roller is installed in the upper part of the cam roller support to be rotatable. The cam member moves the cam roller and is installed under a moving body(4). The nut body is arranged between the two cam members. |
