Take clamping device's drilling to get core machine

The utility model discloses a take clamping device's drilling to get core machine, the on -line screen storage device comprises a base, the stand of fixed connection on the base, the motor of slidingconnection on the stand, fixed connection is at epaxial drill bit of the owner of motor and the drive arrangement of driving motor along the stand up -and -down motion, be provided with clamping device on the base, clamping device sets up including the center and supplies the fixed disk cylindrical or through -hole that the rectangle test piece passed, sliding connection is with radial centre gripping cylindrical test piece's slider on the fixed disk, the circular arc clamping face has been seted up with the one side that cylindrical test piece contacted to the slider, the both sides of circular arc clamping face are formed with horizontal clamping face. Can carry out the centre gripping to rectangle or convex test piece through the circular arc clamping face seted up and horizontal clamping face on the slider, ad