The latest generation of Bosch Rexroth welding systems

The latest generation of Bosch Rexroth welding systems - perfect control of servo pressure


As the world leader in the field of resistance welding, Bosch Rexroth has been leading the development of resistance welding technology. Have developed UIR adaptive technology, PSF / UIP online solder joint quality control technology and Q-stop quality control system, continuing to provide customers with the most cost-effective products.


As we all know, resistance welding has three elements: pressure, time, current, the traditional welding equipment can only control the welding current and time, the pressure needs to be controlled by the external servo system, pressure control and current control and no association, which is the current body Welding a shortcoming.


With the development of the automotive industry, especially with the development of lightweight vehicles, aluminum and other materials are widely used, the need for welding pressure control and control of the current organic together to achieve the best welding results. Bosch Rexroth new welding control system to solve the above difficulties, the internal structure of the welding system schematic diagram is as follows:



- The Bosch Rexroth IndraDrive Cs system, which integrates EN / ISO 13849 safety standards in the control system

- Can be parameterized via the BOS6000

- The PSI63C0 controller communicates with the servo driver via the WIC (sercosIII) bus and controls the servo pressure.

- The clamp clamp is equipped with a clamp module

- You can also set the parameters via the handheld programmer


The process is as follows:

- Start welding, the first clamp began to close

- Slow and welded workpiece contact (soft contact)

- Monitor geometric parameters (check electrode, plate thickness)

- Press the set pressure value to press the workpiece

- Open the welding tongs after welding

Related pressure control function integrated in the bos6000 software, parameter settings easier:



bos6000 a software can be achieved, including pressure control, including all the welding parameters set.



Bosch Rexroth welding servo system has the following functions:

Control function:

- grinding control

- Geometry detection

- Pressure control

- Welding workpiece thickness detection

- electrode cap detection

- Clamp identification

- Robot monitoring dog


Compensation function

- electrode pressure calibration

- Friction

- electrode rod length


The technical program in the German Audi A4, A5, Q1, Q5, Q7 and other projects have thousands of mature applications, Mercedes-Benz's latest project also adopted the program.

Bosch Rexroth welding products with excellent technical performance and product stability, high cost, continue to create greater value for customers.

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