How to solve the problems encountered in the welding of nut spot welding machine?

You are also machine welding, you will encounter a variety of problems, such as after the welding is completed, there are gaps or can not be welded directly, these different problems they have to have different solutions.

In the daily welding work of the nut spot welding machine, there are often some common problems, if it is repaired, it will be stopped and slow down the production speed. So how do you solve it yourself?

1. The weld joint indentation of the high-strength steel nut spot welding machine is tense and there is extrusion

1).Check if the current is too high.

2).Check whether the welded workpiece can be uneven.

3).Check whether the electrode pressure is too large, and whether the shape and cross-section of the electrode head are appropriate.

2. The strength of the welded workpiece of the high-strength steel nut spot welding machine is insufficient

1).Check whether the electrode pressure is too small and check whether the electrode rod can be tightened well.

2).Check whether the welding energy can be too small, and whether the welded workpiece can be rusted and tight, so that the solder joint is poor.

3).Check whether there is too much oxide between the electrode head and shaft, and between the shaft and the electrode arm.

In the daily welding work of Anjia nut spot welding machine, there will be some common problems, so how to solve them by yourself?

1. The indentation of the solder joint of the nut spot welding machine is tense and there is extruddate:

1).Check whether the current can be too large.

2).Check whether the welded workpiece can have unevenness.

3).Check whether the electrode pressure can be too large, and whether the shape and cross-section of the electrode head can be appropriate.

2. The strength of the welded workpiece of the nut spot welding machine is insufficient

1).Check whether the electrode pressure is too small, and check whether the electrode rod can be tightened well.

2).Check whether the welding energy can be too small, and whether the welding workpiece can be corroded and tense, so that the solder joint is not good.

3).Check whether there is too much oxide between the electrode head and the shaft, and between the shaft and the arm.

4).Check whether the cross-section of the electrode head can increase due to wear and tear, and the welding energy can be reduced.

5).Check whether the electrode and copper soft connection and bonding surface can be oxidized nervously.

3. The welding machine of the nut spot welding machine is overheated

1).Check whether the insulation resistance between the electrode base and the body is defective, resulting in a local short circuit.

2).Check whether the inlet water pressure, water flow, and water supply temperature are appropriate, and check whether the waterway system can be blocked by dirt, resulting in overheating of the electrode arm, electrode rod, and electrode head due to poor cooling.

3).Check whether the copper soft coupling and electrode arm, electrode rod and electrode head can oxidize the fighting surface and form a fighting resistance to increase the heating tension.

4).Check whether the cross-section of the electrode head can be overloaded and heat up due to excessive wear and tear.

Summary. If the space of the nut spot welding machine is relatively small, you can consider using some spot welding machine equipment with miniaturized design, such as hand-held spot welding guns or compact spot welding machines, which are small in size, flexible and convenient to operate, and can better adapt to the narrow operation space. In addition, automation equipment, such as robotic spot welding, mobile spot welding equipment, etc., can be used to better adapt to different welding scenarios and improve welding efficiency and quality by using its high intelligence and flexibility.

Can you tell us more about that?

If the space of the nut spot welding machine is smaller than that of the collapsed book, you can consider using some miniaturized design of the spot welding machine equipment, such as hand-held spot welding guns or compact spot welding machines, these spot welding equipment is small in size, flexible and convenient to operate, and can better adapt to the small operating space. In addition, automation equipment, such as robotic spot welding, mobile spot welding equipment, etc., can be used to better adapt to different welding scenarios and improve welding efficiency and quality by using its high intelligence and flexibility.

Clause.

First, the electrode is uneven, first.

Second, the welding TDBYHJ connection time is too short.

The welding joint of the welding nut is high and low, and the spot welding machine is the fixed stroke and fixed current after adjustment, and when the welding joint is too low at the fixed time, it is easy to occur false welding, and the output of the spot welding machine and the stability of the power supply will also occur false welding.

Ways to prevent it:

The quality stability of the nut factory is required, the height of the welding joint is stable, the output power of the spot welding machine needs to be stable, if necessary, please add a voltage regulator at the power supply end The parameters of the welding machine are adjusted: the welding current and voltage welding speed of the workpiece of different materials and different thicknesses is not the same, it is recommended to do a sample test according to the material of the welded part to find a suitable welding parameter. After the test piece is completed, the welding evaluation, appearance defects and fusion depth are made.

The size of the fusion can be cut into the specimen, pickling to see the size of the fusion, and the solder joint should be fused into the welded part.

Preparation before welding: Because the welded parts are aluminum, the surface of the aluminum has an oxide film, and the oxide film at the welding place must be cleaned before welding, and cleaned or pickled with a wire brush. Because the melting point of the oxide film is more than 1000 degrees, and the melting point of aluminum is lower than 1000 degrees, the existence of the oxide film hinders the fusion of the solder joint and the base metal.

Estimation is the main reason. After the oxide film is cleaned, it should be welded within 3 hours, otherwise the oxide film will be regenerated by oxidation with air.

The welding joints of the welding nut are high and low, and the spot welding machine is adjusted with a fixed stroke and a fixed current and a fixed time.

When the solder joint is too low, false welding is easy to occur, and false welding will also occur in the output of the spot welding machine and the stability of the power supply.

1.The quality stability of the nut factory is required, and the height of the solder joint is stable at 2The output power of the spot welding machine needs to be stable, and if necessary, please add a voltage regulator at the power supply end.

There are many uncertain factors, such as grid voltage, welding pressure, impurities in the welding material, whether the welding surface is clean or not, and so on.

The energy storage spot welding machine is used in more precise welding equipment, and the equipment cost is much higher than that of resistance welding machine.

If it is an energy storage spot welding machine, it is best to reduce the frequency of spot welding, if it is too fast, it will be charged enough, resulting in false welding of some nuts.