This application discloses a clamping tool and clamping
system suitable for assembling
capsule endoscopes. The clamping tool includes a base and a suction cup. The base includes a first end face and a second end face facing away from each other axially. A groove is provided on the first end face, and the base has a vent hole connecting the groove wall to the second end face. The suction cup is mounted on the first end face, at least covering the groove to form an adsorption space with the groove wall. The suction cup has a vent hole communicating with the adsorption space. When a vacuum is evacuated from the adsorption space through the vent hole, the suction cup pulls the
capsule optical
front cover to adhere to the groove wall. When the vacuum is broken from the adsorption space through the vent hole, allowing the suction cup to return to its initial state, the suction cup separates from the groove wall, and under the action of gravity, at least a portion of the suction cup protrudes from the first end face in a direction away from it. Through this method, this application can improve the
assembly accuracy and
optical imaging quality of
capsule endoscopes.