SIVPRO 2

Publicerad: 5 september 2018

The over-all objective of the project is to verify technology for direct verification of geometry on-line without the need for specific fixtures or a dedicated measurement room.

This project is a collaboration between Luleå University of Technology, two research institutes, and five companies in the automotive industry. The over-all objective of the project is to verify technology for direct verification of geometry on-line without the need for specific fixtures or a dedicated measurement room. The quantitative objectives of the project are:

  • To increase the amount of verified products with at least a factor of 30.
  • Reduce operator time by 10%.
  • Reduce the amount of scrap and adjusted products by 10%.
  • Make the technology available for users through the founding of a start-up company.

The project partners are: Luleå University of Technology, RISE – Acreo, Swerea – KIMAB, Volvo Car Company, Volvo Trucks, Gestamp Hardtech, Scania, and IAC Group Sweden.

The measurement technique used is passive photogrammetry. Combined with specially designed software that automatically aligns the measured component with its CAD-model, geometrical deviations may be calculated in predefined points. The measurement head is seen in Figure 1. The measurement of freely moving components is managed through flashed illumination and an optical trigger.

SIVPRO2Setup
Figure 1. The photogrammetric measurement head.

A picture from an installation is shown to the left in Figure 2 and a map of measured deviations is shown to the right in Figure 2, where the deviations are scaled by color.

SIVPROMeasurementBox
Figure 2. The measurement box installed at a production site (left image). Measured deviations coded in color relative the components CAD drawing (right image).

Additional links related to the project are found below.

Statistics

Project leader: Mikael Sjödahl (Mikael.sjodahl@ltu.se)
Funding agency: Vinnova - FFI
Project budget: 10.6 Msek out of which 5.3 Msek is funded from Vinnova – FFI and the rest from the participating companies.
Project duration: 15 October 2017 – 14 October 2020