A device for forming a notch for stripping, comprising:
- one or more cutting mechanisms configured to be arranged around an electric wire axis of a coated electric wire, wherein the coated electric wire includes a core covered with an insulating layer or covered with the insulating layer and one or more conductive layers, wherein the one or more conductive layers are layered inside the insulating layer, wherein each of the one or more cutting mechanisms is configured to form one or more notches in the coated electric wire to a specified notch depth starting from an outer circumferential surface of the coated electric wire;
- and
- a rotation mechanism configured to rotate the one or more cutting mechanisms around the electric wire axis so that the one or more notches extend in a direction around a circumference of the electric wire axis which allows a stripped region corresponding to the notch depth to be removed;
- and
- a power supply connecting part which is configured to connect a power supply to an outermost conductor in the coated electric wire in a connecting position located on a side of the coated electric wire closer to a tip of the coated electric wire than a notch forming position of the coated electric wire for forming the one or more notches therein by the one or more cutting mechanisms, the outermost conductor being located at a smallest depth from the outer circumferential surface in the coated electric wire;
- wherein each of the one or more cutting mechanisms includes:
- an electrically conductive notch forming cutter blade which is movable in an intersection direction intersecting the outer circumferential surface;
- a contact detecting section including a current sensor configured to detect a contact between the outermost conductor and the notch forming cutter blade based on a current through an electric circuit including the power supply connecting part, the outermost conductor and the notch forming cutter blade;
- and
- a notch forming movement mechanism configured to move the notch forming cutter blade in the intersection direction, wherein upon detecting the contact by the contact detecting section during movement of the notch forming cutter blade, the notch forming movement mechanism is configured to adjust a position of the notch forming cutter blade in the intersection direction and position the notch forming cutter blade to a position corresponding to the notch depth for forming one or more notches therein,
- wherein the power supply connecting part includes a power supply mechanism part, the power supply mechanism part configured to connect the power supply to the outermost conductor,
- wherein the power supply mechanism part includes:
- an electrically conductive power supply cutter blade which is configured to be electrically connected to the power supply and movable in the intersection direction;
- and
- a power supply movement mechanism configured to move the power supply cutter blade in the intersection direction so that the power supply cutter blade cuts in the outer circumferential surface and thus comes into contact with the outermost conductor.