| 摘要 |
<p>A round die type form rolling apparatus comprises: a pair of die moving blocks (15a,15b) rotatably supporting a pair of round dies (12a,12b); four beam shafts (19) disposed around the rolling position of a work (33) being rolled by the round dies (12a,12b) and extending between the pair of die moving blocks (15a,15b); and a push mechanism (20) for moving the pair of die moving blocks (15a,15b) toward each other. The die moving blocks (15a,15b) are moved, guided by the beam shafts (19), toward each other and the reaction forces generated between a pair of the round dies (12a,12b) by the rolling pressure are shared by the beam shafts (19) to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work (33) that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work (33). <IMAGE></p> |
