Transfer robot for transferring gas container, gas supply cabinet, and gas supply system including the same

A gas supply system comprising:

• a loading/unloading stage in which a gas container is carried in and out;
• and
• a gas supply stage including a gas supply cabinet in which the gas container is mounted and a transfer robot configured to transfer the gas container between the loading/unloading stage and the gas supply cabinet;
• wherein a valve structure of the gas container is covered by a valve cap detachably coupled to the gas container,
• wherein the loading/unloading stage includes,
• an end effector table that holds a container gripping end effector including a gripper for gripping the gas container and a valve cap gripping end effector for gripping the valve cap;
• and
• a loading/unloading robot configured to mount one of the container gripping end effector and the valve cap gripping end effector, the loading/unloading robot performing a transfer operation of the gas container and a separation and fastening operation of the valve cap for the gas container, and
• wherein the loading/unloading robot comprises a vision sensor and a nut runner configured to rotate the valve cap in a state engaged with an embossed structure of the valve cap.

A gas supply system comprising:

• a loading/unloading stage in which a gas container is carried in and out;
• and
• a gas supply stage including a gas supply cabinet in which the gas container is mounted, and a transfer robot configured to transfer the gas container between the loading/unloading stage and the gas supply cabinet,
• wherein the gas supply cabinet includes,
• a cabinet frame with an internal space;
• a base plate on which the gas container is mounted;
• a gripper that grips the gas container seated on the base plate;
• a valve operation module that operates a valve structure between an open position configured to release gas through a valve nozzle of the valve structure of the gas container and a closed position configured to block release of gas through the valve nozzle;
• a Compressed Gas Association (CGA) holding module including an end cap holder for fastening and separating an end cap that opens and closes an outlet of the valve nozzle to and from the valve nozzle, and a connector holder detachably fastened to the valve nozzle and having a gas nozzle communicating with a flow path of the valve nozzle;
• a fastening module movable within the cabinet frame and including a clamping mechanism for gripping the CGA holding module and a power transmission shaft detachably inserted into the CGA holding module;
• and
• a shelf provided in the cabinet frame, the shelf including a plug mounted thereto and to which the connector holder of the CGA holding module is detachably fastened by rotation of the connector holder.