| 摘要 |
PURPOSE:To shorten, the time of working, by turning and moving an arm as well opening and closing a chuck in association with the motion of a synchronously rotating cam so that the loading and unloading are continuously carried out. CONSTITUTION:In a body 30 there are provided an arm turning mechanism 50, an arm shifting mechanism 60 and a chuck opening and closing mechanism 70. The shift of a cam 51 in the arm turning mechanism 50 is transmitted through a transmitting member 53 to an arm shaft 32 so that loading and unloading sections are reciprocatingly turned between a transfer device delivery section and a main spindle derivery position. The arm shifting mechanism 60 reciprocates the arm shaft in its axial direction when each of the loading and loading sections reaches its main spindle chuck derivery position in association with the cam 61. The chuck opening and closing mechanism 70 is actuated by a cam 71. Since the cams 51, 61, 71 are actuated, associatingly with each other, the waiting time of each action may be shortened. |
