Tool positioning cut-off device of lead

The invention relates to the technical field of electrical equipment, provides a tool positioning cut-off device of a lead, so that problems of high labor intensity, long processing time, low efficiency, inconsistent lengths of the processed leads, repeated cutting off, and increased extra work load of workers according to the existing lead cutting off method can be solved. A cut-off assembly is installed at one end of a positioning assembly; and one end of a lead winds around a paying-off assembly and the other end of the lead passes through the cut-off assembly and then is placed at the positioning assembly. A plurality of rotating plates are installed at an upper end surface of a pedestal; a plurality of first paying-off shafts are fixedly connected to the plurality of rotating plates; paying-off slots are fixedly connected to supports; and the supports are arranged at one side of the first pedestal. The paying-off slots of the positioning assembly are V-shaped ones; scales are marked in the grooves of the