Distance-adjustable drill bit structure

The invention discloses a spacing-adjustable drill bit structure which comprises a drill bit moving structure and drill bit bodies arranged at the left end and the right end of the front side of the drill bit moving structure, the drill bit moving structure comprises lead screws, a sliding rod, a screw rod, a threaded block and a guide rod, and the two lead screws are arranged at the left side and the right side of the middle of the threaded block correspondingly; an operator can control motors on the left side and the right side of two lead screws through a controller to drive the lead screws to rotate, so that the lead screws rotate in threaded blocks, and due to the fact that the lead screws and a fixing plate are connected through threaded connection and threaded holes in a threaded connection mode, when the lead screws rotate, a drill bit body can rotate through rotation of the lead screws; the internal thread of the threaded block is meshed with the lead screw and moves on the lead screw, so that an ope