Automatic cutting device for large-caliber quartz tube

The utility model relates to the field of quartz tube processing equipment, in particular to an automatic cutting device for a large-caliber quartz tube, which comprises a grinding wheel cutting machine, an annular mounting plate, a rotary support connected to the annular mounting plate and a driving assembly for driving the rotary support to rotate, the sliding assembly drives the grinding wheelcutting machine to slide in the radial direction; the limiting assembly stops the sliding assembly from sliding; a plurality of supporting plates are connected to the lower plane of the annular mounting plate in an annular array mode, and limiting rod assemblies are spirally arranged on the supporting plates in a penetrating mode respectively. With the adoption of the manner, the automatic cuttingdevice for the large-diameter quartz tube has the advantages that the labor intensity and the production cost are reduced, and the working efficiency is improved. 本实用新型涉及石英管加工设备领域，具体涉及大口径石英管的自动切割装置，包括：砂轮切割机，还包括环形安装板、连接在环形安装板上