ZEISS eMobility Solutions

Inspecting the geometry and contour of the housing is essential: Optical confocal whitelight technology with ZEISS DotScan performs high-precision contour measurements, like chamfers or radii on e.g. bores for bearings.

Integrating the e-motor and transmission into a single housing creates complex, interdependent geometries in the manufacturing process. The shape, size and location of these components have tight tolerances. Tactile active scanning with ZEISS VAST XXT combined with a rotary table fulfills all inspection requirements. 

The geometry of the 2D sheet defines the dimensions of the final stator and permanent magnet slots. This is why it is so important to measure these dimensions quickly and with high accuracy. An ideal solution is to utilize ZEISS multisensor technology, such as 2D cameras and confocal light sensors, to measure the flatness of each individual sheet. The flatness and the non-existence of burrs are key factors to ensure a sheet stack that is perfectly constructed and easy to assemble.

The outer boundary of the stator is crucial for mating the stator in the e-motor housing. The connection flange and shaft position require inspection in relation with the transmission. It is essential that this data be collected quickly and thoroughly. These requirements can be achieved by using ZEISS laser line triangulation technology. An automated ZEISS coordinate measuring machine is ideal for higher quantities.

Each hairpin has a flexible structure and is coated with a sensitive lacquer layer – these characteristics create challenges for reliable tactile inspection. An automated ZEISS coordinate measuring machine, equipped with confocal light or laser triangulation optical sensor is one option to accurately measure the shape and lacquer thickness.