Change arm driving structure of the automatic tool changer

摘要

A change arm drive structure of an automatic tool exchanger is provided to reduce the tool-changing time by driving linear transfer and rotational motion. A change arm drive structure of an automatic tool exchanger comprises: a ball screw(2) operated by a servo motor for linear transfer(1); an LM(Linear Motion) guide(4) joined to a screw nut(5) of a ball screw in order to guide while linear transferring; an LM shaft(6) whose one end is fixed to the screw nut and the other end is combined with a change arm(7); and a ball spline(8) combined with an output axis of a servo motor for the rotational motion(9).