Endoscope for detecting internal threads

The invention discloses an endoscope for detecting internal threads, which comprises an endoscope unit, an electric control rotating mechanism, an electric control translation mechanism, a control unit, a part, a vertical mechanism and a part clamp, and is characterized in that the control unit conveys the part fixed by the part clamp in the vertical direction through the vertical mechanism; horizontal movement of the endoscope unit is achieved through the electric control translation mechanism, and movement and centering of the endoscope body are achieved; through the combination of a plane reflection technology and the endoscope, the optical axis is changed from the axial direction of the threaded hole to the radial direction, so that the defects of the threaded hole can be observed from the side surface, the clear quality of the obtained image of the inner wall of the threaded hole is ensured, and the device has very important significance for improving the maintenance efficiency and the detection quality