Robot automatic spot welding workstation for middle roof skin

A robot automatic spot welding workstation for middle roof skin comprises a plurality of protection plates, wherein a first control cabinet and a second control cabinet are arranged outside the protection plates correspondingly, and a warning lamp is installed on the protection plates; a first control panel and a second control panel which are electrically connected with the first control cabinet and the second control cabinet are installed on the first control cabinet and the second control cabinet respectively, and two parallel guide rails are arranged in a working area; and the two guide rails are in sliding fit with sliding table plates, the two sliding table plates are provided with a first robot and a second robot respectively, welding tongs are installed each of on the first robot and the second robot respectively, driving motors are fixed to the sliding table plates, gears are installed at the output ends of the driving motors, and racks arranged along the guide rails are fixed to the guide rails. The