| 摘要 |
<p>According to an embodiment of the present invention, a center mount comprises: a body unit assembled to a ball socket where a workpiece ball is attached or detached in order to support a ball bar; a base unit mounted on a measurement table where the body unit is loaded on the top thereof; an applied pressure force transmitting unit which pressurizes the body unit in order to fixate the body unit to the base unit, and includes an elevation interlocking member capable of moving in the height direction from the base unit; and an applied pressure force regulating unit combined with the base unit, and regulates the applied pressure force of a pressurizing member to the body unit by elevating a case by regulating the height of the elevation interlocking member through a rotational motion using a lead screw principle. According to an embodiment of the present invention, the center mount can accurately and firmly position the body unit and, in turn, can improve reliability of a measurement such as an error measurement by a simple rotational motion of the applied pressure force regulating unit in the lead screw type, and can reduce the manufacturing costs thereof when compared with conventional ones through a simple structure.</p> |
