| 摘要 |
PROBLEM TO BE SOLVED: To gradually reduce and finally eliminate the joining clearance, and to easily regulate the excessively small bearing pressure between parts to the prescribed level by providing a plurality of parts having the angular-deviated wedge profile specific to the cylindrical shape, relatively turning the parts, and changing the relative angular position. SOLUTION: A machine tool is provided with a guide pole 4 extending in the vertical direction to communicate a bottom box with a top box, and a slide is assembled in a elevating/lowering manner along the guide pole 4. The guide pole 4 is provided with a profile 10, a profile 11 is also formed on a bush 15 attached to a guide hole in the slider 5 corresponding to the profile 10, and the profiles 10, 11 are formed of three wedges 12 deviated by the angle of 120 deg.. The bush 15 is locked to the slider 5 by a bolt 18, and when the slider 5 is positionally fixed, the bush 15 is turned in the circumferential direction to obtain the fixed condition by the wedge effect between the profiles 10, 15. |
