800W-4000W Lithium Battery Cap Pneumatic Ultrasonic Metal Spot Welder Welding Machine for Pouch Cell Electrode Tab/Foil

The ultrasonic metal spot welding machine consists of two parts: a machine and an ultrasonic power generator.

1. The machine consists of a chassis, guide pillars, transducers, pneumatic systems, PC circuits, and bottom molds.

2. The sound component consists of two parts: a transducer and a welding head. The transducer uses a piezoelectric vibrator, which converts electrical energy into mechanical vibration. A transformer, similar to a transformer in a circuit, plays a role in mechanical damping transformation and amplitude amplification. The welding head is designed according to the welding requirements and the shape of the weldment, and it also plays a secondary impedance transformation and amplitude amplification role. From the perspective of structure and shape, the welding head is not complex, but it requires good design, good materials, and excellent processing technology. Welding heads with complex shapes and large sizes are difficult to design and are generally designed by the manufacturing plant.

3. The pneumatic system is powered by compressed air and switches circuits through an electromagnetic valve, pushing the cylinder piston to drive the welding head up and down. Use a pressure regulating valve to control the pressure, and use a one-way throttle valve to control the lifting speed.

4. Control circuit

The control circuit executes program control over the welding process. The function keys on the panel can set the welding time and delay time according to different welding objects. Then, press the foot switch, and the welding machine will automatically complete a welding process.

5. Ultrasonic power generator The ultrasonic power generator provides electrical power to the sound component. Due to significant changes in the resonant frequency and impedance of the acoustic components during the welding process, the ultrasonic power sounder must have the ability to automatically track the frequency and adjust the output power automatically by the load. Ultrasonic metal spot welding machine adopts external excitation oscillation; Automatic frequency tracking using phase method; Constant vibration speed control.