Membrane clamping tool for ultrasonic welding of automobile door panel

The utility model relates to a tire mold clamping tool for ultrasonic welding of an automobile door panel, which comprises a bottom plate, two supports are symmetrically arranged on the upper surface of the bottom plate left and right, a rotating rod is mounted between the two supports, a U-shaped clamping plate is arranged above each support, the rotating rod penetrates through and is fixed on two side plates of the U-shaped clamping plate, driving plates are fixed at two ends of the rotating rod, and the driving plates are fixed on the two sides of the rotating rod. A driving plate is hinged to the other end of the driving plate, a driving air cylinder is connected to the driving plate, supporting plates are connected to the rear side of the U-shaped clamping plate, a tire mold clamping plate is detachably installed between the two supporting plates, a plurality of through holes are formed in the positions, corresponding to tire mold welding positions, of the tire mold clamping plate, and a plurality of cla