Measure, Design and Compensation for Thermal Deformations

Objective

The main objective of the project is to reduce the thermal deformations of machine tools and measurement equipments (CMMs) by changes in the design and by compensation methods. Thus the first step of the project is to improve the thermal design of the machines and generate a methodology to allow industrial companies to apply these techniques without external help. A further step is to compensate the residual deformations in the improved machines. The academic partners will develop and compare up to six different estimation algorithms to choose which best suits under industrial conditions. Linear thermal deformations will be compensated by means of the CNC and the angular deformations, physically, actuating over the machine (heat actuators...). As result of the forementioned activities, our project tries to develop a methodology to adjust the parameters of the compensation algorithm to each new machine in a test of duration less than 12 hours. Finally, a new laser measurement device, based on theodolite principle, will be developed. It will allow to take accurate position readings in several different locations of the machine during the long thermal tests. Our improved design methodology, compensation algorithms and measurement device will be tested independently in one large milling machine, in two grinding machines, in a lathe and in a coordinate measurement machine; therefore providing the ability to extent these results to other very different machines.

Programme(s)

• FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

ZAYER SA

Address

7,Portal De Vergara 7
01013 Vitoria (Alava)
Spain

Participants (9)

Carl Zeiss Jena GmbH

Germany

Address

1A,tatzendpromenade
07745 Jena

Coord 3 - Costruzione Macchine Utensili Speciali Sas

Italy

Address

Strada Statale Del Moncenisio Km 42.2
10050 Bruzolo Di Susa

Doimak SA

Spain

Address

4,Poligono San Lorenzo
20870 Elgoibar

FIDIA SPA

Italy

Address

Corso Lombardia 11
10099 San Mauro

FUNDACION TEKNIKER

Spain

Address

20,Avda Otaola 20
20600 Eibar

KATHOLIEKE UNIVERSITEIT LEUVEN

Belgium

Address

300 B,celestijnenlaan 300 B
3001 Heverlee

Naxos-Union Schleifmittel- und Schleifmaschinenfabrik AG

Germany

Address

6,Pittlerstrasse
63225 Langen

Officine E. Biglia & C. SpA

Italy

Address

Via Martiri Della Libertà 31
14045 Incisa Scapaccino

Rheinisch-Westfälische Technische Hochschule Aachen

Germany

Address

53,Steinbachstraße
52074 Aachen