Customer oriented
the strength of the tailor made
Capellini’s distinctive strength is the manufacturing of customized Capellini’s distinctive strength is the manufacturing of customized spindles, the product of our capability to perfectly suit customer’s needs. Over time, the continued manufacturing of tailor made products has enabled us to increase our knowledge about products, procedures and applications; this know-how has been fundamental in defining our standard product range. Nevertheless, our attitude to customized manufacturing always inspires our activity. The experience, know-how, and the use of state-of-the-art technology allow us to design specific spindles for any application and machine tool.The application analysis, design through cutting-edge technologies, advanced simulation, and support from the specialized labs, MUSP and ITIA-CNR, improve our ability to predict the final performance. These technologies are especially helpful for determining the static and dynamic behavior of the spindle when integrated into the customer’s machine while in the production process. The ongoing technology development carried out by our R&D enables us to minimize the prototyping time line, and manufacture spindles refined at the first start-up. The critical production stages, such as machining, finish grinding, assembly and final test, are carried out in-house to ensure the highest quality level and the shortest lead-times. The tailor-made spindle becomes an integral part of the machine tool and gives the customer a high performance, long-lasting solution.
ANALYSIS
The first challenge in achieving a top quality product is to define what are the The first challenge in achieving a top quality product is to define what are the main features and strengths the application requires, and to understand what characteristics can be improved. Only by spending time for this analysis, can a high value be added to the product. For this reason, our technical and sales staff work closely with the customer from the first steps of the analysis. If necessary, measurements and tests at the customer’s facility are carried out to collect all the data necessary to achieve the best outcome.
Advanced simulation
Spindle line and bearing life analysis
The right bearings are essential for the right spindle. That’s why we The right bearings are essential for the right spindle. That’s why we carry-out preliminary function models which allow us to estimate, from the beginning, the most critical parameters of the bearings and spindle axis. With this data, we can estimate the expected bearing life in connection with the operating speed, working loads, structural failures and other variables.
dYNAMIC
A modern spindle should ensure the best performance during every working stage, and the best dynamics should also be guaranteed for the whole speed range. Consequently, the eigenfrequency analysis is not enough to avoid the resonances; it is necessary to consider the most advanced theories about the dynamic optimization of structures to decrease vibrations and chatters. In this way, it is possible to take advantage of the whole motor power curve. A modern spindle should ensure the best performance during every working stage, and the best dynamics should also be guaranteed for the whole speed range. Consequently, the eigenfrequency analysis is not enough to avoid the resonances; it is necessary to consider the most advanced theories about the dynamic optimization of structures to decrease vibrations and chatters. In this way, it is possible to take advantage of the whole motor power curve. Careful analyses of these events, and their constant removal, have enabled us to develop technological components, innovative materials, and constructive methods for this purpose.
Process
To go beyond the dynamic optimization of the product, we use To go beyond the dynamic optimization of the product, we use state-of-the-art systems to estimate the stable machining capacity. These simulation technologies allow us to rate the expected performance from a spindle while taking into consideration all the variables, such as:
• type and dimensionstype and dimensions of the tool
• dynamic ductility dynamic ductility of the machine
• dynamic ductility dynamic ductility of the spindle
• dynamic ductility dynamic ductility of the work piece
• power curve of power curve of the spindle
Combining the variables measured with the numeric variables simulated, Combining the variables measured with the numeric variables simulated, it is possible to define the spindle to be integrated into the machine during the development phase and compare it with the existing references. This operation, carried-out on different mathematical models, allows for excellent product improvement.
Tests and empirical verifications
sQUARE THE CIRCLE
To improve the previous stages, it is fundamental to test the outcomes carefully. The company is equipped with test rooms to analyze and record each functional parameter of the spindle. To improve the previous stages, it is fundamental to test the outcomes carefully. The company is equipped with test rooms to analyze and record each functional parameter of the spindle. Special equipment is available for dynamic analysis, such as impact testing and modal analysis. These measurements are carried out for each product with the aim of checking the values calculated during simulation and to use them to improve numerical models. This is fundamental to optimizing the design methods.
