The invention discloses a plug
welding machine. The plug
welding machine comprises an eight-
station welding table, a body feeding mechanism, a first
weld line feeding mechanism, a first
servo welding mechanism, a first image detecting device, a
servo repairing welding mechanism, a second
weld line feeding mechanism, a second
servo welding mechanism, a second image detecting device, a finished product
discharge mechanism, an electric cabinet, a human-
machine controller and a regional security
grating which are all arranged on a
factory floor; the body feeding mechanism, the first
weld line feeding mechanism, the first servo welding mechanism, the first image detecting device, the servo repairing welding mechanism, the second weld line feeding mechanism, the second servo welding mechanism and the finished product
discharge mechanism are distributed sequentially on each
station of the eight-
station welding table; the second image detecting device and the second servo welding mechanism are arranged on the same station of the eight-station welding table. By utilizing the above manner, the assembling welding efficiency is high, the production stability is attractive, the product
rejection rate is low, and the total production efficiency is high.