Clamp for ultrasonic protective film

The utility model provides an ultrasonic wave protective film clamp, the clamp is matched with an ultrasonic wave welding machine for use, the ultrasonic wave welding machine is provided with a welding head, a welding workpiece is arranged below the welding head, the ultrasonic wave welding machine comprises a rolling assembly, a rolling-out assembly and an adjusting assembly, the unused ultrasonic wave welding protective film is wound on the rolling-out assembly, and the adjusting assembly is arranged on the rolling-out assembly. The ultrasonic welding protective film passes through the lower portion of a welding head of the ultrasonic welding machine and then is wound on the winding assembly, and the adjusting assembly controls the ultrasonic welding protective film to make contact with or be separated from a welding workpiece. The winding assembly comprises a first motor, a first rolling shaft and a touch controller, the first motor is in transmission connection with the first rolling shaft, and the touch