Machine Vision News
Vol. 5, 2000
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Machine vision solutions for on-line quality control applications

RTS Cheos specialises in robotic and machine vision integration. Dedicated to providing the optimum solution utilising the most advanced technology, the company develops high quality systems and solutions for a wide range of industrial applications. Integrating robust, commercially available hardware with proprietary software packages RTS Cheos boasts an extensive blue chip client base spanning three Continents.

RTS Cheos is a member of the international RTS Group. With operating facilities in Finland, England, France and the US, the group specialises in high technology solutions for production and industrial automation, milling and grinding robotics, laboratory automation and nuclear engineering.

RTS Cheos – The ultimate partner for flexible quality control applications

Even today most quality control tasks in production automation are done by hand. Quality inspection is a monotonous task and the results are largely subjective, resulting in quality variations. Machine vision based quality detection can be utilised in most cases and the short cycle time allows every piece to be inspected.

The VIP Quality Control system produced by RTS Cheos is a machine vision system used throughout industry for a wide range of quality control applications. The system can be easily configured, without programming, to detect a variety of assembly errors such as missing or misplaced components, dimension errors, poor component surface quality and label printing errors. 

The RTS VIP system includes all the required hardware and software modules including: 

  • -Vision Quality Control software package
  • Industrial PC with IP65 cabinet
  • 15" TFT display unit, IP65 protection
  • frame grabber board
  • camera system (CCD, Progressive scan or line scan camera)
  • TTL isolated I/O interface
  • Optics
  • Cabling
  • Lighting
The major benefits of the RTS VIP system are short start-up time, pre-installed software and hardware, technically proven components. With the on-line SPC analysis it is possible to predict quality problems before they occur.

Application example 

Assembly verification of steel springs mounted on a plastic part

Metal springs are assembled automatically by robot. Beside the assembly cell is the RTS VIP Quality Control system. The system verifies that the location and orientation of the assembled steel springs. The location is measured against reference positions at the corners. The production line is supervised by the host computer, which receives the results. Pieces which are out of tolerance are automatically rejected.

Technical details:

  • -Vision Quality Control  software
  • 2 * Cohu CCIR cameras
  • Matrox Pulsar frame grabber
  • 0.8 s cycle time
  • accuracy ?0.1 mm

Assembly verification of fluorescent light ballast (choke) 

The fluorescent light ballast is manufactured automatically. At the end of the production line RTS VIP Quality Control checks the following: 

  • quality of label printing
  • quality of surface painting
  • correct assembly of plastic components
  • mounting hole size and position 
Technical details:
  • - Vision Quality Control  software
  • 4 * Cohu CCIR cameras
  • Matrox Pulsar frame grabber
  • 2 s cycle time
  • position detection accuracy ?0.1 mm

Printing quality (good) 

Misplaced connector

Location and size of the mounting hole.

Surface quality (poor)

Contact:

Mika Laitinen
RTS Cheos Ltd
Sinimäentie 10 B
FIN-02630 Espoo
FINLAND
Tel: +358-9-525 9610
Fax: +358-9-525 9611
E-mail: mika.laitinen@rtsfin.fi
http://www.rts-group.com/
 

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