Robot turntable calibration mechanism

The utility model discloses a robot rotary table calibration mechanism, and particularly relates to the technical field of robot calibration, the robot rotary table calibration mechanism comprises a movable disc used for robot rotary table calibration, a box body is fixedly arranged in the movable disc, and the top end and the bottom end of the box body respectively penetrate through the top and the bottom of the movable disc. The top of the box body is provided with a calibration assembly for calibrating the turntable; a supporting assembly used for supporting the calibration assembly is arranged in the box body. And a positioning assembly for positioning the calibration assembly is arranged at the bottom end of the box body. According to the utility model, the positioning ring can be taken down by rotating and detaching the connecting plate in threaded connection with the supporting column, and then the sealing cover in threaded connection with the box body is rotated and detached, so that a user can conven