Operation drill

The utility model relates to the technical field of orthopedic surgical tools, in particular to a surgical drill which comprises a base, a bearing seat is fixedly mounted at the top of the base, a pin shaft is rotatably mounted at the top of the bearing seat, a guide plate is fixedly mounted at the top of the pin shaft, and a working mechanism is arranged at the bottom of the guide plate. The working mechanism comprises a first hinge block, the first hinge block is fixedly installed at the bottom of the guide plate, an electric telescopic rod is fixedly installed at the bottom of the first hinge block, a connecting rod is fixedly installed at the bottom of the electric telescopic rod, and a second hinge block is fixedly installed on the surface of the bearing seat. According to the operation drilling device, the air cylinder is arranged at the top of the mounting block, the included angle between the guide plate and the bearing base can be changed through stretching and retracting of the electric telescopic r