Automatic lid taking and sealing device for nuclear waste steel bucket and application of device

The invention provides an automatic lid taking and sealing device for a nuclear waste steel bucket. The device comprises a mounting support, bolt screwing mechanisms, grabbing mechanisms and sensors;the bolt screwing mechanisms are arranged on the mounting support and used for screwing up or screwing off bolts; the grabbing mechanisms are arranged at the bottom of the mounting support and used for grabbing a bucket lid; the sensors are arranged at the bottom of the mounting support and used for achieving precise locating; a main air cylinder is arranged at the central axis of the mounting support, and connected with the grabbing mechanisms to control the grabbing mechanisms to work; thin air cylinders are further uniformly distributed at the bottom of the mounting support and used for clamping the bucket lid. The automatic lid taking and sealing device is high in alignment precision, simple in structure, and convenient to install, maintain and run, and the cost is effectively saved. 本发明提供种用于核废料钢桶的自动取封盖装置，包括安装