Housing for lambda sensors in 2 variants made of PBT-GF30


Cycle time:
22 sec.
Mould design:
Annual production:
3,3 Mio

3-shift operation, 250 working days p.a., 85% availability

Brief description

The fully automated rotary indexing table system is used for producing housing units for lambda sensors in 2 different variants. From two pre-punched strips the system separates contact groups into two bending and cutting tools. These are then laid by two 6-axis robots into the bottom of the injection-mould assembly. In the injection-moulding station the system then injection-moulds around the individual contacts. After the injection-moulding, the ejected housing units are taken out of the bottom of the mould assembly by a Scara robot and transferred to the rotary indexing table.

Checks of the housing unit are now run to ensure the following:
  • Complete reproduction of the mould contours
  • Full presence of all snap-fit hooks and ridges on the housing unit
  • Full presence and correct length of all inlaid contacts
  • Resistance test at the contacts
  • Electrical high-voltage test at the contacts

Good parts are then selectively marked by a hot-embossing stamp and placed in a stackable deep-drawn tray. A pallet-exchange system for stackable deep-drawn trays enables plant autonomy of around 2 operating hours.