Vertical grinder for grinding water-soluble crystal lens

The utility model relates to the technical field of vertical grinding machines. The utility model relates to a grinder, in particular to a vertical grinder for grinding water-soluble crystal lenses. Machine body, a first clamp driving assembly and a second clamp driving assembly are symmetrically arranged on the upper surface of the machine body. A lower protective cover and an upper protective cover are symmetrically arranged above and below the first clamp and the second clamp correspondingly; the beneficial effects are that: the device is suitable for large-scale production; according to the utility model, the first hydraulic cylinder and the second hydraulic cylinder are controlled to drive the lower protective cover and the upper protective cover; the lens clamped by the first clamp and the second clamp and the grinding knife are wrapped and covered with the lower protective cover and the upper protective cover, the lens grinding process and the cooling liquid spraying process areboth in a closed state,