| 摘要 |
PURPOSE:To embed plural screw cylinders simultaneously into plural prepared holes, different in upper end face height, of a workpiece by fitting a normally/ reversely rotating motor, provided with a screw cylinder setting screw shaft, piercingly to a motor fitting plate fitted to the longitudinal slider of a longitudinal rail, and disposing an elevating means for elevating the longitudinal sliders. CONSTITUTION:A longitudinal slider 31 descends by its own weight only by operating a longitudinal slider elevating means 6. The descent is stopped when the bottom faces of inserts (screw cylinders) set to the respective screw shafts 51a, 52a, 53a, 54a of motors 5 come in strong pressure contact with the upper end faces of the corresponding prepared holes A1, A2, A3, A4 of a workpiece A. Even the diverse height positions of the respective prepared holes can be thereby absorbed, and the difference in the vertical movement of the repective screw shafts 51a, 52a, 53a, 54a generated by the different rotating speed of the respective screw shafts 51a, 52a, 53a, 54a due to load can be also absorbed. The inserts can be thereby embedded into plural prepared holes diverse in height simultaneously with single work. |
