Face gem grinding and polishing machine and height adjusting mechanism thereof

The utility model relates to the technical field of gem machining equipment, and provides a faceted gem grinding and polishing machine and a height adjusting mechanism thereof. The adjusting deflector rod comprises a handle part, a rotating part and a driving part, the handle part and the driving part are located at the two ends of the rotating part respectively, the rotating part is rotationally connected with the base, and the driving part is used for abutting against the bottom end of the mounting platform; and the locking structure is arranged on the adjusting driving lever and is used for movably clamping the base so as to limit the rotation of the adjusting driving lever. The height adjusting mechanism provided by the utility model can be mounted in the faceted gem grinding and polishing machine for use, an operator can conveniently adjust the height of the mounting platform, wide-range inclination adjustment is provided for a gem indexing tool, a gem needing to be ground and machined can reach the opti