Ultrasonic welder capable of detecting welding quality in real time

The invention discloses an ultrasonic welder capable of detecting welding quality in real time. The ultrasonic welder comprises an upper computer, a programmable controller, an ultrasonic welding device and a signal collecting device, the programmable controller is connected with the upper computer through a network switchboard and industrial Ethernet, the ultrasonic welding device comprises an ultrasonic generator, a triple component and a cylinder driving the triple component to move on the surface of a workpiece along a vertical direction, the triple component is composed of a transducer, an amplitude modulator and a welding head, and the ultrasonic generator is in communication connection with the programmable controller through a field bus; the signal collecting device is in communication connection with the upper computer through a serial bus and comprises a vibration signal collecting module for collecting vibration signals in the process of ultrasonic welding in real time and a real-time power signal