Quartz plate outer circle grinding machine

The invention relates to the technical field of quartz plate machining, in particular to a quartz plate outer circle grinding machine. Comprising a machining table, a grinding device used for grinding a quartz plate, a supporting device installed in the middle of the machining table and used for containing the quartz plate, sliding grooves symmetrically formed in the two sides of the machining table and two driving devices slidably arranged in the two sliding grooves correspondingly, the two driving devices are symmetrically arranged, and the driving ends of the two driving devices are close to each other; clamping assemblies are arranged at the driving end of the driving device, and the two clamping assemblies symmetrically arranged on the two sides are used for extruding and clamping a quartz plate; the clamping assembly comprises a clamping block, and the clamping block is a circular block and is fixedly mounted at the driving end of the driving device; the clamping block is provided with an adsorption ass