Marking and verification

Marking and verification

A major company in the automotive industry needed to address the quality control of the production process to prevent frequent production errors.

Proposed solution

A single-purpose machine that will use micropoint technology to mark castings with a 2D code and then verify them.

Marking of basic machine functions

The marking machine has a carriage with clamps for clamping the casting. The trolley has 2 positions: marking and verification. In the marking position the castings are inserted and removed. The marking position is equipped with two Östling PN4/6 marking heads with pneumatic tip. The verification and conveyor positions are equipped with cameras.

Each casting carries two products. Each product is marked with a 2D code after casting. The code has a size of 12×12 modules (dots) and a dimension of 7×7 mm. The marking is done on a single-purpose marking and verification machine located in the casting workplace. The castings are inserted into the machine by a manipulator after cooling in the bath. After marking, the codes on the products are verified by two cameras. Another 4 cameras and signal lights are placed on conveyors in the inspection and sorting section of the workplace. The inspection and sorting part of the workplace is also equipped with a wireless barcode reader to read the number of the baskets into which the products fall. Once the codes are read by the cameras or readers, an entry is made in the database. The control application of the single-purpose machine and the application for verification, database entry and communication with the workstation control system run on a touch-screen computer.

In the following production areas, data and communication cabinets with cameras, code readers and computers with touch monitors are installed to monitor the flow of products through the production operations. The database is run on a database server. Each cabinet is therefore connected to the end user’s computer network.

Advantages of the solution

  • Early detection of a manufacturing defect
  • Reducing costs in complaints procedures
  • Clarity in production and documentation
  • Quality system control

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