Projection volume detection fixture for cylinder sleeve of engine

The utility model discloses a projection volume detection fixture for a cylinder sleeve of an engine. The detection fixture comprises a detection fixture body and a dial indicator assembly. The dial indicator assembly includes a frame, and a dial indicator mounted on the frame. The detection fixture body is a cylinder having a plurality of up-down through measuring slots, and helps the dial indicator assembly to measure the projection volume of the cylinder sleeve of the engine. When the projection volume of the cylinder sleeve of the engine is measured, the detection fixture is put into a cylinder sleeve hole to be measured, and the dial indicator assembly is disposed on the detection fixture body; a measuring rod of the dial indicator contacts the top surface of a cylinder and the top surface of the cylinder sleeve of the engine through the measuring slots, respectively, thereby obtaining a maximum value and a minimum value; and the projection volume of the cylinder sleeve of the engine is determined based