Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

FP5

VINO Berichtzusammenfassung

Project ID: G1RD-CT-2000-00306
Gefördert unter: FP5-GROWTH
Land: Italy

Prismatic component machining prototype incorporating high damping LDS structures

The results consist of the design and manufacturing of a high performance large module for prismatic component machining, using advanced light damped structures (LDS). This new machine will be able to cover a larger part of the market request thanks to its wide working field.

The idea is to apply the study and research carried out within the Vino project to modify an existing prototype in order to increase dynamic performances.

The use of LDS on two main component is foreseen: the X axis (column) and the Z axis (ram). These two components are critical for machine working performance because they are constrained asymmetrically to the machine structure and must withstand unbalanced loads.
- working range: 1600 mm X axis, 1200 mm Y axis, 800 mm Z axis
- maximum rapid feed: around 100 m/min
- Drive system: Linear motors for X,Y,Z axis
- highest acceleration: in the range of 12 – 15 m/s2
- work thrust: around 6 KN per axis - weight of LDS structures: at least 10-20 % less than the welded steel parts (with damping properties increasing 3-5 fold compared to those of ones).

The new LDS, which will be developed and applied to this demonstrator, must face and cope with crucial issues of manufacturing and assembling and must be strong and stiff enough to guarantee high precision finishing operations. Furthermore, they must fit with guideways and revolving devices, allow the clamping of linear motors and motorspindles and they must withstand the conditions of the working environment.

The final design of the LDS structures (Ram and Column) have been provided. The LDS structural behaviour has been simulated and tested. The achieved results (both numerical and experimental) proved that the target goals for damping increasing and weight reduction have been achieved.

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