DAF, automotive inspection

DAF, a PACCAR company, is a leading world-wide manufacturer of trucks. Each truck, assembled by operators in different locations, consists of a multitude of parts. In order to safeguard the quality of this process and to ensure consistent quality DAF PACCAR deployed Beltech vision systems.

Automotive assembly requires tracking and tracing of key-components. Data-matrix codes on different engine parts need to be recognized, read and identified. The processed code-information is stored in the ECU of the engine.

Solution

The specific assembly line is based upon different parallel processes that all together result in the total assembly of the engine. The required system needs to be flexible as the line and the parts on it, can stop at different places at random times. Given this circumstances, Beltech developed an automotive inspection system that was capable of reading the respective codes at a larger distance of about 1,5 meter.

With line-scan camera technology, an image is captured during the full length of the truck engine when passing over the assembly line, anticipating upon possible stops during the measurement. The different codes are localized within the obtained images automatically with designated software and compared with predefined parameters. In case of a mismatch an alarm is generated and an operator is informed of the type of action required. In case of a match, this result including the actual images of the correct assembly are stored for statistic quality analysis or root cause analysis.

Added value

  • Real-time tracking and tracing of information
  • Quality control
  • Storage of data for analysis purposes
  • Statistics on performance per line, operator, type of engine
  • Operator-independant

About Beltech & Approach

This case was brought to a success by combining code-reading expertise with in-depth understanding of the customers’ process.

Development of a code-reading system is only part of the solution. Looking though the customer’s point-of-view we found the right set of demands, wishes and expectations. With those in hand we made the difference by developing a system that still meets all requirements.

In this case, the lighting environment at DAF was analyzed thoroughly. A process-analysis was conducted, including the direct environment. Some examples of critical, practical factors  we identified are:

  • the need to deal with a dirty environment
  • high requirements for a ruggedized, reliable and industrial-proof solution
  • the advantage to fully integrate in the line-control systems and processes used at DAF.

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