Production and Measurement of Seat Force Sensors for Automobiles

Epson SCARA robots are used in the production and measurement of seat force sensors for automobiles at Tech3D Control GmbH

Epson SCARA robots are used in the production and measurement of seat force sensors for automobiles

Application: Component placement & assembly
Customer: Tech3D Control GmbH
Product: Seat force sensors
Industry:: Automotive
Epson robot: Epson SCARA robot ES2S451S


Initial situation/task

Tech3d Control in Lauffen am Neckar plans, develops and produces special plants in the field of automated measurement engineering for a wide range of industrial customers. Each project represents an individual solution to a customer-specific problem. The production of seat force sensors for automobiles is one of those tasks.

The production line for these sensors combines assembly, quality control and palletising. It must deliver over 10,000 parts within 24 hours fautlessly. While so doing, speed and precision are essential.





Within the production line, two Epson SCARA robots of type E2S451S execute equipment and assembly tasks. They are controlled by two Epson controllers RC170 with Profibus connection.

The individual parts to be joined are provided in different pallets. The first Epson SCARA robot takes two sleeves in a row and places them on pick-up arbors. The sleeves are transported on a workpiece carrier for the so-called “wedding” process.

In the next step, the Epson SCARA robot picks the bending element from the pallet and puts it in the first rotary-cycle unit. The Epson Smart Camera detects the flat milling on the bending element. The exact orientation of the magnet holder occurs via the 4th axis of the Epson SCARA robot.

The second Epson SCARA robot grabs the magnet holder (hall sensor) and inserts it into the bending element. In this respect, high levels of path accuracy - without cycle time losses - are indispensable. The hall sensor is then welded to the bending element via laser.

The unit consisting of bending element and magnet holder is lubricated at an oil station prior to being wed to the sleeve. The “wedding” part is the final stage of the joining process, which is then followed by various quality tests, like e.g. vibration and tearing tests. Once all tests have been succesfully completed, the sensor is printed with a data matrix code, the printed information is checked once again, and then palleted.


Benefits at a glance:

  • Assembly, quality control and palletising on a single line
  • High levels of path accuracy with high cycle times
  • Reliable quality assurance performed by Epson Smart Vision
  • Use around the clock