Common problems with spot welding machines for spot welding heads

issuing time:2023-08-18
read:265

The spot welding machine of the spot welding head cannot be used.
The reasons may be as follows:
(1) The spot welding machine host is not turned on. In this case, turn on the spot welding machine host and adjust the parameters;
(2) If the air pressure is not turned on, the air pressure switch should be turned on at this time;
(3) Short circuit or short circuit of spot welding head. In this case, connect the broken wire, find the location of the short circuit, and repair it;
(4) If the position of the spot welding head is too high and cannot reach the surface of the workpiece, fine tune the spot welding position until the spot welding head contacts the surface of the workpiece;
(5) The spot welding voltage is too low, and the spot welding pressure is too low. In this case, the spot welding pressure should increase and the spot welding voltage should increase.


The spot welding status of the spot welding head is unstable, sometimes good and sometimes bad.
The reason is that the fastening iron block screws inside the spot welding machine head are loose, causing the sliding shaft to slide up and down. In this case, the loose screws should be tightened.


Spot welding disconnection and spot welding failure
When the welding pressure is too high or the welding voltage is too high, the welding wire will break. At this point, adjust the spot welding voltage or pressure until the spot welding status is adjusted. Meanwhile, if the welding head is used for a long time, oxides will be generated on it, which may also cause spot welding fracture. Gently wipe the spot welding head, if the effect is not good, please replace it. During spot welding, the spot welding voltage can be increased, the spot welding time and pressure can be increased, and the spot welding state can be adjusted.


Spot welding drift
When the spot welding head presses the lead wire and is about to release the current for spot welding, the lead wire will slide on both sides, causing the spot welding to fail. The reason may be that lead has floated up. When the spot welding head presses down on the lead wire, the lead wire does not stick down on the spot welding iron sheet, but slides towards both sides. At this point, it is necessary to ask the wire winding debugger to debug the leads. Another possibility is that the spot welding head is not installed correctly, that is, the spot welding head is not perpendicular to the spot welding clamp and deviates to one side.
When the head is pressed down on the spot welding head, the spot welding head is also subjected to force on the Y-axis. When the force is large enough, the spot welding head will slide to one side, which may cause the lead to break. We need to position the spot welding head correctly or reduce the spot welding pressure appropriately.

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