Ultrasonic welding is widely used in the automotive industry, often using ultrasonic butt welding, spot welding, puncture welding, riveting, and ultrasonic punching. Such as car door panels, car door panel acoustic felt, automotive non-woven interior parts spot welding, car dashboard, car dashboard, automotive plastic parts riveting, car bumper, car tire cover, car roof, car trunk non-woven, Car seat cushion non-woven fabric, automobile engine cover, automobile taillight, automobile lampshade, automobile bearing cage, automobile glove box, automobile filter, automobile plastic valve, automobile air commutator, automobile airflow detector, etc. For the welding of automotive plastic parts, non-standard ultrasonic welding equipment, multi-head multi-station design, with PCL program control and liquid crystal display operation, welding of complex workpieces of large automobiles, including welding surfaces in different directions, need to weld multiple positions at the same time .