Body In White.
The MINI first takes shape in the body-in-white facility. The
body panels and some sub-assemblies come into the body shop just in
time and just in sequence from the Swindon Plant. The different
body models can be produced in any sequence.
There are more than 500 robots in the bodyshop, meaning that body
shell production is more than 95 percent automated. This
allows for more than 4,000 welding points on the bodies to be
joined precisely and quickly. In some cases, up to eight robots
work on one body simultaneously, on three different levels.
In order to check the accuracy of these robots, laser inspection is
carried out by small Perceptron laser cameras, at key points of the
build. Every single MINI is checked by Perceptron measuring
stations which form part of the production line. Any deviation from
the correct alignment and build can therefore be identified and
adjusted without interrupting the flow of production.
Facts and Figures
- More than 500 robots apply more than 4,000 spot welds to create one MINI bodyshell.
- There are 340 separate panels in a MINI hatchback bodyshell.
- Accuracy of Perceptron cameras is ± 0.05mm (half the width of a human hair).
- The total number of Perceptron measuring points is 502, carried out in five stations throughout the body-in-white process.
- The approximate core temperature of a spot weld is 1500ºC.