阅读说明：本技术 一种电阻焊焊接控制方法 (Resistance welding control method ) 是由 欧剑波 于 2020-08-08 设计创作，主要内容包括：本发明涉及一种电阻焊焊接控制方法,进行电阻焊焊接时,焊接控制器通过控制焊接电流和焊接电极位置来获得焊接效果。(The invention relates to a welding control method of resistance welding, when resistance welding is carried out, a welding controller obtains a welding effect by controlling welding current and a welding electrode position.)

1. A welding control method of resistance welding is characterized in that: when resistance welding is carried out, the welding controller controls the welding current and the electrode position to obtain the welding effect.

2. The welding electrode position of claim 1 acquired by a displacement sensor coupled to the electrode.

3. A displacement sensor according to claim 2, which is a grating scale.

4. The displacement sensor of claim 2, being a magnetic scale.

Technical Field

The invention relates to a resistance welding control method.

Background

Resistance welding, which is widely applied in modern industrial production and can be used for welding between the same or different kinds of metals, the current resistance welding method generally applies a certain pressure to two or a plurality of metal welding parts by two electrodes, then outputs a large current by a resistance welding power supply and maintains a certain time, and a nugget is generated between the two metal welding parts by resistance heat, thereby the two metal welding parts are welded together, and the method is characterized in that: the welding controller obtains the welding effect through the welding current and the welding time, the welding mode is suitable for occasions with not particularly high welding precision, and once the welding controller is applied to occasions with high requirements on the welding precision, particularly under the condition of high requirements on the stability of the welding thickness and the welding time, the welding controller often cannot achieve the stable effect of controlling the welding current and the welding time.

Disclosure of Invention

Aiming at the defects of the traditional resistance welding control method, the invention provides a resistance welding control method which comprises the following steps: when resistance welding is carried out, a welding controller obtains a welding effect by controlling welding current and the position of a welding electrode, and the principle is as follows: when resistance welding is carried out, a welding power supply is connected with two electrodes through a cable, the two electrodes apply certain pressure to two or a plurality of metal welding parts, the electrodes are connected with a displacement sensor, when welding starts, a welding controller informs the welding power supply to output welding current, the welding current passes through the cable, the electrodes and the metal welding parts, the metal welding parts generate nuggets under the action of resistance heat, the nuggets are extruded under the action of the pressure of the welding electrodes, a welding area generates displacement, the electrodes also generate displacement along with the welding area, the displacement sensor connected with the electrodes also generates displacement, the displacement sensor transmits data to the welding controller through a signal wire, when the displacement data are matched with a set value, current output is stopped, and therefore stable welding effect is obtained.