Flexible testing machine FPA

Industrial machine vision usually is tailor-made for one or a small amount of workpieces. The system and its components are harmonized exactly and rarely allow further adjustments. If the contour of the workpiece changes however, the whole testing machine often needs to be modified at great cost. But not just the costs are a crucial factor but also a certain dependence on the system manufacturer.

With the modular approach of a flexible testing system PENTACON reaches out to the costumer. The flexible testing system can be programmed freely in large scale and because of its modular design system single components can be added or removed enhancing the system intelligently. Even in its basic setting, the system covers a broad range of parts that can be adjusted individually and thus allow a 100% testing. Expensive setup times or changes in programming will be reduced to a minimum.

For the feeding and discharging we use robots from STÄUBLI, Universal Robots, KAWASAKI or Mitsubishi. The system can be designed that the robot either picks a pre-sorted and oriented workpiece ("pick and place") and feeds it to the modular testing sequence. Or at 2D picking the workpiece is taken from an Anyfeeder and oriented by the robot.

Modules

At the incident light testing the workpiece is picked up by a robot and placed correctly oriented in front of the lens of a camera. For best measuring results we use a telecentric lens. The cycle time is 0.5 seconds (including the calculation of the results and the forwarding to the higher-level control for command outputs to the robot).

The system measures the shape and five dimensions with an uncertainty of measurement of 0.4 µm.

The transmitted light testing is used to determine the length, diameter, radius and contour. The workpiece is placed into a glass wedge captured by a camera with a telecentric lens illuminated by lateral transmitted light. After the testing is done, the glass wedge will be opened and the workpiece is sorted out or transfered to the next station.

The uncertainty of measurement is 0.4 µm at a cycle time of 0.5 seconds.

With the PENTACON bore hole inspection system (BLI) you now are able to test and evaluate bore holes on parameters like threads, forming or foreign particles like chips. The parts-to-be-tested will be placed at a distance of around 10 mm in front of the bore hole inspection system and tested optically. The illumination is designed as a sophisticated system of mirrors coupled into the optical axis.

The cycles time is 0.5 seconds including the calculation of the results and the forwarding to the higher-level control for command outputs to the robot.

The module:

  • evaluates thread formings
  • checks for chips in bore holes
  • tests the existence of blind holes at the bore hole ground

The smallest bore hole to be tested has a diameter of 3 mm and the biggest is 40 mm. The diameter/ depth of field ratio is 1:3.