Due to the advantages of resistance butt welding: smooth joint, small burr, simple welding process, in many small wire butt welding, we hope to achieve through resistance butt welding equipment.
For example, it can be cut wire butt welding widely used in lighting lamps. In recent years, due to the upgrading of Philips Lighting products, it is required that the material of cutting wire be harder, the size of welding spot be more strict, and the wire diameter should not be exceeded, etc., which brings new challenges and opportunities to the welding equipment of cutting wire (automatic spot welding machine). The traditional butt welding of wirecut, including the butt welding of other materials with wire diameter less than 1mm, almost all adopt pull arc welding. Pull arc welding is a very special welding method. Butt welding the thin materials at the two poles together, the welding is very solid, and the mass production is stable. The only defect is that when the arc is pulled, there is a lot of fire, resulting in splashing, and the joints at the welding points are large. Due to the requirement of product upgrade for the size of solder joints, this welding method is difficult to achieve. In the sensor industry platinum wire docking, electronic cigarette industry nickel wire docking, blasting high temperature heating materials docking also encounter similar problems.
At present, resistance butt welding (resistance welding machine) is the solution to adapt to this upgrade. Resistance welding has no arc and splash, which can make the welding points smaller and has been successfully produced abroad. However, it is very difficult to adjust the machine: the first is that the workpiece is too thin, and the clamping mechanism is required to be high; the second is that the welding pressure control requirements are quite precise, and two stages of pressure are required, that is, the pressure needs to change in the process of spot welding for tens of MS in order to stabilize the production; the third is that the adjustment of vertical accuracy also needs the equipment to have considerable accuracy.
Our welding power supply precision, response speed, control mode selection, signal interface, etc. can fully meet the needs of docking mechanism. It is equipped with dual output welding power supply for two-point simultaneous welding such as cutting wire butt welding, which can weld the welding points at both ends at the same time. The rules of welding parameters of welding power supply can be obtained by debugging. But the key to the success of butt welding depends on the level of its own mechanism. Experienced automation manufacturers can make efforts to control the mechanism manufacturers with high precision. If resistance butt welding can be widely used in small wire, it is a large market.
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