The working principle of the ultrasonic automatic welding machine is mainly to use the energy of ultrasonic waves to realize the welding of materials such as plastics and metals. During the welding process, the vibration of ultrasonic waves generates high temperature and high pressure, which makes the molecules on the contact surface penetrate each other, so as to realize the seamless connection of materials. This welding method is not only fast and effective, but also does not cause damage to the material itself.

　　The advantages of the ultrasonic automatic welding machine are mainly manifested in the following aspects: First, the welding speed is fast and high-quality welding can be achieved. Secondly, due to the concentration of ultrasonic energy, the material will not be damaged during the welding process. Again, the ultrasonic welding machine has the advantages of small size, light weight, and simple operation, which is convenient for users to use. Finally, the ultrasonic automatic welding machine has a wide range of applications, whether it is plastic, metal or other materials, it can be seamlessly connected by ultrasonic welding.

　　However, the ultrasonic automatic welding machine also has some disadvantages: first, its high energy consumption is not conducive to environmental protection; second, the equipment cost is high, and for some small and medium-sized enterprises, the purchase and maintenance costs are high. In response to these problems, future research will focus on improving the energy efficiency ratio of ultrasonic welding machines and reducing equipment costs to better meet market demand.