Detection device

The invention discloses a detection device, relates to the technical field of detection, and aims to solve the problems that in the prior art, the area where a heat preservation rivet is located needs to be cut off during casual inspection of the heat preservation rivet, a cut heat preservation plate needs to be repaired for the second time after the test is completed, time and labor are wasted, and the quality is difficult to guarantee after large-area repair. The detection device comprises a drawing mechanism, a power mechanism and a detection mechanism. The drawing mechanism comprises at least two grapnels, the at least two grapnels are distributed at intervals, and the free ends of the grapnels are used for drawing parts fixed to the workpieces. The power mechanism is in power connection with the drawing mechanism and used for driving the drawing mechanism to do linear motion in the direction close to or away from the part. The detection mechanism is arranged on the power mechanism and used for obtaining