Thread cutter with stable shearing force

The invention discloses a wire cutter with stable shearing force, and relates to the technical field of electric power. An existing thread trimmer is pressed in the using process, and the phenomena of instability and even displacement are easily caused. The device comprises a supporting seat, a center groove is formed in the middle of the supporting seat, a threaded rod transversely penetrates through the center groove, a driver is connected to one end of the threaded rod, threaded moving blocks matched with each other are arranged on the two sides of the threaded rod correspondingly, and a left moving positioning block and a right moving positioning block are arranged on the tops of the threaded moving blocks correspondingly; a left rotating positioning block and a right rotating positioning block are respectively arranged on the corresponding side edges of the left moving positioning block and the right moving positioning block; a group of left clamping blocks and a group of right clamping blocks are respec