Quartz crucible cutting device

The embodiment of the utility model provides a quartz crucible cutting device, which relates to the technical field of quartz crucibles and comprises a clamping mechanism and a laser cutting mechanism, the clamping mechanism comprises a rack and a clamping assembly arranged on the rack, and the clamping assembly is used for fixing a quartz crucible; the clamping assembly is rotationally connected with the rack, and the clamping assembly can slide in a lifting mode relative to the rack; the laser cutting mechanism comprises a laser cutting assembly and a three-axis driving assembly, and the laser cutting assembly is used for cutting a quartz crucible; the three-axis driving assembly is connected with the laser cutting assembly so as to drive the laser cutting assembly to move in the three-dimensional space. The laser cutting is used for replacing a traditional mechanical cutting mode, micro cracks and chippings generated by mechanical abrasion of the quartz crucible can be reduced, then the edge breakage defec