Clamp for drilling hole in small sheet semi-circular part

The utility model relates to a clamp, in particular to a clamp for drilling a hole in a small sheet semi-circular part. The problems that when a hole is drilled in an existing small sheet semi-circular part, due to the fact that the part is thin, clamping is difficult, manual line drawing is needed to capture the hole drilling position, and the position size and precision of a drilled hole are poor are solved. The clamp for drilling the hole in the small sheet semi-circular part comprises an upper cover, a base and a check block, the upper cover is buckled on the base, a semi-circular groove is formed in the upper surface of the base, a plurality of first round holes are formed in the upper surface of the upper cover, each round hole is formed above the semi-circular groove, and the check block used for fixing the upper cover is arranged on one side of the upper cover in an inserted mode. The clamp is used for clamping the small sheet semi-circular part.