Image measuring instrument with coaxial optical function

The utility model discloses an image measuring instrument with a coaxial optical function, which comprises a support, a rotating groove and a moving groove are arranged on the support, a rotating frame and a moving frame are respectively arranged in the rotating groove and the moving groove, a first extrusion groove is arranged on the moving frame, a first positioning block is arranged in the first extrusion groove through a first extrusion mechanism, and a second positioning block is arranged in the second extrusion groove through a second extrusion mechanism. A second extrusion groove is formed in the rotating frame, a second positioning block is arranged in the second extrusion groove through a second extrusion mechanism, a first positioning hole and a second positioning hole are formed in the support, a rotating rod is rotationally arranged on the moving frame, and a CCD camera is arranged on the rotating rod. By arranging the rotating groove, the rotating frame, the second positioning block, the second s