What is the parameter adjustment, testing and analysis of ultrasonic wire harness welding machine?

The parameters are adjustable and can be detected: amplitude, pressure, welding time, welding energy, welding height, welding width.

Pressure: The larger the cross-sectional area, the higher the welding pressure. Good equipment is digitally controlled by an electric proportional valve.

Welding width: according to IPC standard and German Volkswagen standard VW60307-CN-2005, the width thickness ratio of welding wire is between 1:1 and 2:1. The larger the sectional area is, the closer the knot width and thickness are to 2:1. So when we get harness products, we first determine the welding width according to this rule; Then determine the approximate welding height according to the width. The welding machine adopts stepping motor or servo motor to adjust the welding width.

The welding time and welding energy shall be determined by trial welding according to the cross-sectional area of the welding wire. The height parameter is an important analysis parameter: after determining the welding width, we can calculate the height value according to the previous analysis. The height before and after welding can be used as a criterion to determine whether the wire is missing and whether the welding is good.

Quality analysis mainly refers to the judgment of height; Of course, welding energy consumption and time can be used as additional constraint parameters to see if they are out of range. General practice: set a height value (which can be determined by actual welding test calculation), and then set the deviation value. When the height deviation exceeds the range, it can be judged as unqualified. This is true before and after welding.