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.
Funding SchemeCSC - Cost-sharing contracts
10050 Bruzolo Di Susa
10099 San Mauro
14045 Incisa Scapaccino