LINEAR RECIPROCATING MOTION DEVICE USING ELECTRIC MOTOR-DRIVEN DRILL

A linear reciprocating motion device using an electric motor-driven drill is provided, the device converting the rotation of the electric motor-driven drill to a linear reciprocating motion with a simple structure. The linear reciprocating motion device includes a spindle (30) that can be removably provided to the electric motor-driven drill (20), the spindle including a male screw unit (30a) at an intermediate position, a nut (40) including a female screw unit (40a) to be screwed into the male screw unit, a movable body (41) to be integrally coupled to the nut, a spindle holder (35) to be connected to cover a tip portion of the spindle, a fixing tool (80) having one end engaged with the electric motor-driven drill and another end coupled to the spindle holder, the fixing tool inhibiting the spindle holder and the movable body from rotating together, a first elastic member (61) pressing the female screw unit toward the male screw unit when the male screw unit is positioned closer to the electric motor-driven drill side than the female screw unit, a second elastic member (62) pressing the female screw unit toward the male screw unit when the female screw unit is positioned closer to the electric motor-driven drill side than the male screw unit, a first work unit (51) to be mounted on the movable body, and a second work unit (52) to be mounted on the spindle holder.