The invention relates to a crashing-preventing type
rock sample cutting and
grinding device and a
cutting and
grinding process thereof, wherein a motor of the crashing-preventing type
rock sample cutting and
grinding device drives two parallel transmission shafts, one is provided with
a diamond cutting piece, the other one is provided with a
grinding wheel, and a clamping device is opposite to the
diamond cutting piece and the
grinding wheel; a feeding device can run along a base so as to adjust the positions between the clamping device and the
diamond cutting piece, and between the clamping device and the
grinding wheel; the clamping device is provided with a holder that penetrates from a bracket, the holder is split, an upper holding body and a lower holding body are buckled to form a cylindrical holding cavity, the upper holding body is provided with a clamping rocking
handle which is in threaded connection with the upper holding body by penetrating through the bracket, a
cooling pipe is arranged on the holder, and a
nozzle of the
cooling pipe is arranged in front of the holding cavity. The crashing-preventive type
rock sample cutting and grinding device integrates cutting and grinding, and the problem that a rock sample is easy to be clamped to be crashed is solved, the operation is simple and convenient and successful rate is high.