CONTROL APPARATUS OF IMPACT POWER TOOLS

摘要

The present invention relates to an electric tool and, more specifically, to a device for controlling an electric impact tool capable of converting the impact and drill modes of an electric impact tool. To achieve the objective of the present invention, the device for controlling an electric impact tool comprises a motor part (100) for providing the driving force of the electric tool; a tool part (200) operated by the driving force received through a tool shaft (210) from the motor part (100); a torque limit part (300) arranged between the motor part (100) and the tool part (200) to cut off the driving force transmitted to the tool part (200) if a torque transmitted to the tool part (200) is a set value or greater; an impact generation part (400) arranged between the torque limit part (300) and the tool part (200) to perform the axial reciprocating motion of the tool part (200) by converting some of the rotation driving force of the motor part (100); and a control part (500) for controlling the operation of the torque limit part (300) and the impact generation part (400). The control part (500) converts the drill mode for activating the operation of the torque limit part (300) and restricting the operation of the impact generation part and the impact mode for restricting the operation of the torque limit part (300) and activating the operation of the impact generation part (400).