| 摘要 |
PROBLEM TO BE SOLVED: To allow press fitting by using a working machine with versatility such as a machining center for performing cutting etc.SOLUTION: A press-in device for a machining center moves a press fitting rod 12 connected with a screw shaft 10 in an axial direction. Thereby, a tapered part 29 of the press fitting rod 12 moves a plurality of balls 26 held to a holder case 11 outside in a radial direction to project from an outer peripheral part of the holder case 11. Accordingly, the holder case 11 can be fixed to a jig 3 by being caught to a holder fixing tapered part 32 of a holder fixing member 31. As a result, the holder case 11 is fixed to the jig 3 in the axial direction, and can support a press fitting reaction force generated during press fitting with the jig 3 and the holder case 11. In addition, when a core position between a press fitting workpiece 4 and a press fitting hole 6 of a workpiece 5 is shifted, a core shift absorption press fitting bush 13 moves to the radial direction to automatically adjust the core position. |
