A drill bit tool for black and white drill grinding

Abstract

This application relates to the field of black and white drills and discloses a drill bit fixture for black and white drills, including a drill bit and a threaded block. A connecting rod is snapped onto the top of the drill bit, and the center of the connecting rod is on the same straight line as the center of the drill bit. A connecting ring is threaded onto the surface of the threaded block, and the inner wall of the connecting ring is slidably connected to the surface of the connecting rod. Several rotating blocks are fixedly connected to the surface of the connecting ring, and the rotating blocks are arranged in a circular array around the center of the connecting ring. By installing the threaded block on the top of the drill bit, threading the connecting ring onto the surface of the threaded block, and installing several rotating blocks on the surface of the connecting ring, and slidably connecting the inner wall of the connecting ring to the surface of the connecting rod, this application allows the rotating blocks to control the rotation of the connecting ring, connecting the connecting ring to the threaded block, thereby fixing the drill bit to the bottom end of the connecting rod and separating the connecting ring from the threaded block, facilitating the disassembly of the drill bit.

Images