| 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 which includes a rotary cam being coupled to the base unit in order to rotate having an eccentric shape based on an axis center, and a cam contact member to elevate the elevation interlocking member by being maintained at a contact state with the rotary cam such that the height thereof can be regulated by the eccentric shape of the rotary cam during the rotation of the rotary cam which regulates the applied pressure force of a pressurizing member to the body unit using the eccentric cam structure. According to an embodiment of the present invention, the center mount can accurately and firmly position the body unit and, in turn, can improve measurement reliability such as an error measurement by a simple rotational motion of the applied pressure force regulating unit using the eccentric cam structure, and can reduce the manufacturing costs thereof when compared with conventional ones by realizing a simple structure to fixate the position of the body unit.</p> |
