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Assembly solutions

We integrate a wide variety of assembly processes and technologies into customer-specific manual workstations and machines, regardless of the manufacturer.

We have a wide range of experience in:


  • Welding
  • Packing
  • Electrical contacting of customer-specific plugs and interfaces, e.g. to flash firmware
  • Cleaning (plasma cleaning, dust removal)
  • Hoists
  • Special tools
Joining, pressing, caulking
Press in rings

Task Description:

The task was to press rings into an aluminum die-cast housing. Since power electronics for electromotive will be installed in the housing during the further course of production, it had to be ensured by cleaning that no metal chips remain from the press-fitting process.

Process description:

  • Manual loading and line start
    The operator inserts the assembly into a type-specific fixture. Sensors check whether the assembly is in the correct position in the fixture. The DMC of the assembly is then scanned automatically. Furthermore, a batch code of the rings as well as the material label of the housing is scanned manually. An MES query checks the plausibility between product and shoring condition. If the product is OK, the system is released for processing.
  • Separating the rings
    (Do 64.27mm; Di 55mm and s5.2mm; weight per ring approx. 31g). The rings are fed to the system without any cycle time. This is achieved by filling a storage container (vibratory feeder). From this container, the rings are conveyed to a separating system. There they are separated in the correct position. Level sensors measure the filling quantity of both the storage and the separation systems and then display a message. The hopper is filled at the rear of the line without interrupting production.
  • Provision of the rings
    The rings separated in the correct position in the preliminary process are now prepared for the press-fit process.
  • Pressing in the rings
    The pressing tool takes over the ring provided and probes the press-fit point at low speed. The probing force and probing position determined there are recorded. As a result, the ring is pressed in to the stop under force and position control. Forces of up to 15 kN occur during this process. The following functions and accuracies are required for the process: Adjustable press speed; programmability of stroke positions with an accuracy of +/- 0.01mm; force resolution of 100N; positioning accuracy of the assembly before pressing in +/-0.05mm.
  • Checking the press-fit depth
    After the rings have been pressed in, they are transported to the "Testing" station. There, the press-in depth of 7.3 +/-0.1 is determined by means of a measuring system for each ring and this data is then sent to the MES database.
  • Cleaning the housing
    Since metal chips are produced during the press-fitting process, the assembly is finally cleaned with a compressed air cleaning system.

Field of application: Power electronics for e-mobility