Arc-shaped thin-wall shell drilling clamp

The utility model discloses a drilling fixture for an arc-shaped thin-wall shell. The drilling fixture comprises a drill plate, a support plate, a shaft, a bottom plate, a drill bushing, a positioning block, a connecting plate and the arc-shaped thin-wall shell, the lower end and the upper end of the support plate are detachably connected with a bottom plate and a drill plate respectively; a shaft is connected to the middle end of the support plate in a penetrating manner; the positioning block is sleeved with an arc-shaped thin-wall shell in a matched mode, and the positioning block is detachably arranged at the upper end of the left side of the connecting plate. A mounting hole is formed in the middle of the connecting plate, the shaft penetrates through the mounting hole and is detachably connected with the connecting plate, the right end of the arc-shaped thin-wall shell is attached to the connecting plate, and the left side of the arc-shaped thin-wall shell is attached to the supporting plate; a drill bu